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Comparing libev/ev.c (file contents):
Revision 1.458 by root, Sun Oct 27 16:26:07 2013 UTC vs.
Revision 1.492 by root, Sat Jun 22 16:25:53 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
312#ifndef EV_USE_INOTIFY 337#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 339# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 340# else
316# define EV_USE_INOTIFY 0 341# define EV_USE_INOTIFY 0
… …
357 382
358#ifndef EV_HEAP_CACHE_AT 383#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 384# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif 385#endif
361 386
362#ifdef ANDROID 387#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 388/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 389# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 390# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL 392# undef EV_USE_CLOCK_SYSCALL
… …
371/* aix's poll.h seems to cause lots of trouble */ 396/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX 397#ifdef _AIX
373/* AIX has a completely broken poll.h header */ 398/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL 399# undef EV_USE_POLL
375# define EV_USE_POLL 0 400# define EV_USE_POLL 0
401#endif
402
403#if EV_USE_LINUXAIO
404# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
376#endif 405#endif
377 406
378/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 407/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
379/* which makes programs even slower. might work on other unices, too. */ 408/* which makes programs even slower. might work on other unices, too. */
380#if EV_USE_CLOCK_SYSCALL 409#if EV_USE_CLOCK_SYSCALL
… …
408 437
409#if !EV_USE_NANOSLEEP 438#if !EV_USE_NANOSLEEP
410/* hp-ux has it in sys/time.h, which we unconditionally include above */ 439/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux 440# if !defined _WIN32 && !defined __hpux
412# include <sys/select.h> 441# include <sys/select.h>
442# endif
443#endif
444
445#if EV_USE_LINUXAIO
446# include <sys/syscall.h>
447# if !SYS_io_getevents
448# undef EV_USE_LINUXAIO
449# define EV_USE_LINUXAIO 0
413# endif 450# endif
414#endif 451#endif
415 452
416#if EV_USE_INOTIFY 453#if EV_USE_INOTIFY
417# include <sys/statfs.h> 454# include <sys/statfs.h>
… …
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 522/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 523/* ECB.H BEGIN */
487/* 524/*
488 * libecb - http://software.schmorp.de/pkg/libecb 525 * libecb - http://software.schmorp.de/pkg/libecb
489 * 526 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 527 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 528 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 529 * All rights reserved.
493 * 530 *
494 * Redistribution and use in source and binary forms, with or without modifica- 531 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 532 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 546 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 547 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 548 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 549 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 550 * OF THE POSSIBILITY OF SUCH DAMAGE.
551 *
552 * Alternatively, the contents of this file may be used under the terms of
553 * the GNU General Public License ("GPL") version 2 or any later version,
554 * in which case the provisions of the GPL are applicable instead of
555 * the above. If you wish to allow the use of your version of this file
556 * only under the terms of the GPL and not to allow others to use your
557 * version of this file under the BSD license, indicate your decision
558 * by deleting the provisions above and replace them with the notice
559 * and other provisions required by the GPL. If you do not delete the
560 * provisions above, a recipient may use your version of this file under
561 * either the BSD or the GPL.
514 */ 562 */
515 563
516#ifndef ECB_H 564#ifndef ECB_H
517#define ECB_H 565#define ECB_H
518 566
519/* 16 bits major, 16 bits minor */ 567/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003 568#define ECB_VERSION 0x00010005
521 569
522#ifdef _WIN32 570#ifdef _WIN32
523 typedef signed char int8_t; 571 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 572 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 573 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 590 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 591 typedef int32_t intptr_t;
544 #endif 592 #endif
545#else 593#else
546 #include <inttypes.h> 594 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 595 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 596 #define ECB_PTRSIZE 8
549 #else 597 #else
550 #define ECB_PTRSIZE 4 598 #define ECB_PTRSIZE 4
551 #endif 599 #endif
552#endif 600#endif
553 601
602#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
603#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
604
554/* work around x32 idiocy by defining proper macros */ 605/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64 606#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
556 #if _ILP32 607 #if _ILP32
557 #define ECB_AMD64_X32 1 608 #define ECB_AMD64_X32 1
558 #else 609 #else
559 #define ECB_AMD64 1 610 #define ECB_AMD64 1
560 #endif 611 #endif
… …
565 * causing enormous grief in return for some better fake benchmark numbers. 616 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so. 617 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have 618 * we try to detect these and simply assume they are not gcc - if they have
568 * an issue with that they should have done it right in the first place. 619 * an issue with that they should have done it right in the first place.
569 */ 620 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 621#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0 622 #define ECB_GCC_VERSION(major,minor) 0
573 #else 623#else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 624 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif 625#endif
576#endif
577 626
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 627#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
579#define ECB_C99 (__STDC_VERSION__ >= 199901L) 628
580#define ECB_C11 (__STDC_VERSION__ >= 201112L) 629#if __clang__ && defined __has_builtin
630 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
631#else
632 #define ECB_CLANG_BUILTIN(x) 0
633#endif
634
635#if __clang__ && defined __has_extension
636 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
637#else
638 #define ECB_CLANG_EXTENSION(x) 0
639#endif
640
581#define ECB_CPP (__cplusplus+0) 641#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L) 642#define ECB_CPP11 (__cplusplus >= 201103L)
643#define ECB_CPP14 (__cplusplus >= 201402L)
644#define ECB_CPP17 (__cplusplus >= 201703L)
645
646#if ECB_CPP
647 #define ECB_C 0
648 #define ECB_STDC_VERSION 0
649#else
650 #define ECB_C 1
651 #define ECB_STDC_VERSION __STDC_VERSION__
652#endif
653
654#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
655#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
656#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
583 657
584#if ECB_CPP 658#if ECB_CPP
585 #define ECB_EXTERN_C extern "C" 659 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 660 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END } 661 #define ECB_EXTERN_C_END }
… …
600 #define ECB_NO_SMP 1 674 #define ECB_NO_SMP 1
601#endif 675#endif
602 676
603#if ECB_NO_SMP 677#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0) 678 #define ECB_MEMORY_FENCE do { } while (0)
679#endif
680
681/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
682#if __xlC__ && ECB_CPP
683 #include <builtins.h>
684#endif
685
686#if 1400 <= _MSC_VER
687 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
605#endif 688#endif
606 689
607#ifndef ECB_MEMORY_FENCE 690#ifndef ECB_MEMORY_FENCE
608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 691 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
609 #if __i386 || __i386__ 692 #if __i386 || __i386__
610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 693 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 694 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 695 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 696 #elif ECB_GCC_AMD64
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 697 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 698 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 699 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 700 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 701 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
702 #elif defined __ARM_ARCH_2__ \
703 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
704 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
705 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
706 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
707 || defined __ARM_ARCH_5TEJ__
708 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 709 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 710 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
711 || defined __ARM_ARCH_6T2__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 712 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 713 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 714 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 715 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__ 716 #elif __aarch64__
717 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
718 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 719 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 720 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 721 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__ 722 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 723 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
651 744
652#ifndef ECB_MEMORY_FENCE 745#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(4,7) 746 #if ECB_GCC_VERSION(4,7)
654 /* see comment below (stdatomic.h) about the C11 memory model. */ 747 /* see comment below (stdatomic.h) about the C11 memory model. */
655 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 748 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
749 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
750 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
656 751
657 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 752 #elif ECB_CLANG_EXTENSION(c_atomic)
658 * without risking compile time errors with other compilers. We *could*
659 * define our own ecb_clang_has_feature, but I just can't be bothered to work
660 * around this shit time and again.
661 * #elif defined __clang && __has_feature (cxx_atomic)
662 * // see comment below (stdatomic.h) about the C11 memory model. 753 /* see comment below (stdatomic.h) about the C11 memory model. */
663 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 754 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
664 */ 755 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
756 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
665 757
666 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 758 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
667 #define ECB_MEMORY_FENCE __sync_synchronize () 759 #define ECB_MEMORY_FENCE __sync_synchronize ()
760 #elif _MSC_VER >= 1500 /* VC++ 2008 */
761 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
762 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
763 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
764 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
765 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
668 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 766 #elif _MSC_VER >= 1400 /* VC++ 2005 */
669 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 767 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
670 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 768 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
671 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 769 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
672 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 770 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
692 /* any fence other than seq_cst, which isn't very efficient for us. */ 790 /* any fence other than seq_cst, which isn't very efficient for us. */
693 /* Why that is, we don't know - either the C11 memory model is quite useless */ 791 /* Why that is, we don't know - either the C11 memory model is quite useless */
694 /* for most usages, or gcc and clang have a bug */ 792 /* for most usages, or gcc and clang have a bug */
695 /* I *currently* lean towards the latter, and inefficiently implement */ 793 /* I *currently* lean towards the latter, and inefficiently implement */
696 /* all three of ecb's fences as a seq_cst fence */ 794 /* all three of ecb's fences as a seq_cst fence */
795 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
796 /* for all __atomic_thread_fence's except seq_cst */
697 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 797 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
698 #endif 798 #endif
699#endif 799#endif
700 800
701#ifndef ECB_MEMORY_FENCE 801#ifndef ECB_MEMORY_FENCE
… …
724 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 824 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
725#endif 825#endif
726 826
727/*****************************************************************************/ 827/*****************************************************************************/
728 828
729#if __cplusplus 829#if ECB_CPP
730 #define ecb_inline static inline 830 #define ecb_inline static inline
731#elif ECB_GCC_VERSION(2,5) 831#elif ECB_GCC_VERSION(2,5)
732 #define ecb_inline static __inline__ 832 #define ecb_inline static __inline__
733#elif ECB_C99 833#elif ECB_C99
734 #define ecb_inline static inline 834 #define ecb_inline static inline
… …
748 848
749#define ECB_CONCAT_(a, b) a ## b 849#define ECB_CONCAT_(a, b) a ## b
750#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 850#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
751#define ECB_STRINGIFY_(a) # a 851#define ECB_STRINGIFY_(a) # a
752#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 852#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
853#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
753 854
754#define ecb_function_ ecb_inline 855#define ecb_function_ ecb_inline
755 856
756#if ECB_GCC_VERSION(3,1) 857#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
757 #define ecb_attribute(attrlist) __attribute__(attrlist) 858 #define ecb_attribute(attrlist) __attribute__ (attrlist)
859#else
860 #define ecb_attribute(attrlist)
861#endif
862
863#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
758 #define ecb_is_constant(expr) __builtin_constant_p (expr) 864 #define ecb_is_constant(expr) __builtin_constant_p (expr)
865#else
866 /* possible C11 impl for integral types
867 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
868 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
869
870 #define ecb_is_constant(expr) 0
871#endif
872
873#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
759 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 874 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
875#else
876 #define ecb_expect(expr,value) (expr)
877#endif
878
879#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
760 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 880 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
761#else 881#else
762 #define ecb_attribute(attrlist)
763 #define ecb_is_constant(expr) 0
764 #define ecb_expect(expr,value) (expr)
765 #define ecb_prefetch(addr,rw,locality) 882 #define ecb_prefetch(addr,rw,locality)
766#endif 883#endif
767 884
768/* no emulation for ecb_decltype */ 885/* no emulation for ecb_decltype */
769#if ECB_GCC_VERSION(4,5) 886#if ECB_CPP11
887 // older implementations might have problems with decltype(x)::type, work around it
888 template<class T> struct ecb_decltype_t { typedef T type; };
770 #define ecb_decltype(x) __decltype(x) 889 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
771#elif ECB_GCC_VERSION(3,0) 890#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
772 #define ecb_decltype(x) __typeof(x) 891 #define ecb_decltype(x) __typeof__ (x)
773#endif 892#endif
774 893
894#if _MSC_VER >= 1300
895 #define ecb_deprecated __declspec (deprecated)
896#else
897 #define ecb_deprecated ecb_attribute ((__deprecated__))
898#endif
899
900#if _MSC_VER >= 1500
901 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
902#elif ECB_GCC_VERSION(4,5)
903 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
904#else
905 #define ecb_deprecated_message(msg) ecb_deprecated
906#endif
907
908#if _MSC_VER >= 1400
909 #define ecb_noinline __declspec (noinline)
910#else
775#define ecb_noinline ecb_attribute ((__noinline__)) 911 #define ecb_noinline ecb_attribute ((__noinline__))
912#endif
913
776#define ecb_unused ecb_attribute ((__unused__)) 914#define ecb_unused ecb_attribute ((__unused__))
777#define ecb_const ecb_attribute ((__const__)) 915#define ecb_const ecb_attribute ((__const__))
778#define ecb_pure ecb_attribute ((__pure__)) 916#define ecb_pure ecb_attribute ((__pure__))
779 917
780#if ECB_C11 918#if ECB_C11 || __IBMC_NORETURN
919 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
781 #define ecb_noreturn _Noreturn 920 #define ecb_noreturn _Noreturn
921#elif ECB_CPP11
922 #define ecb_noreturn [[noreturn]]
923#elif _MSC_VER >= 1200
924 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
925 #define ecb_noreturn __declspec (noreturn)
782#else 926#else
783 #define ecb_noreturn ecb_attribute ((__noreturn__)) 927 #define ecb_noreturn ecb_attribute ((__noreturn__))
784#endif 928#endif
785 929
786#if ECB_GCC_VERSION(4,3) 930#if ECB_GCC_VERSION(4,3)
… …
801/* for compatibility to the rest of the world */ 945/* for compatibility to the rest of the world */
802#define ecb_likely(expr) ecb_expect_true (expr) 946#define ecb_likely(expr) ecb_expect_true (expr)
803#define ecb_unlikely(expr) ecb_expect_false (expr) 947#define ecb_unlikely(expr) ecb_expect_false (expr)
804 948
805/* count trailing zero bits and count # of one bits */ 949/* count trailing zero bits and count # of one bits */
806#if ECB_GCC_VERSION(3,4) 950#if ECB_GCC_VERSION(3,4) \
951 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
952 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
953 && ECB_CLANG_BUILTIN(__builtin_popcount))
807 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 954 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
808 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 955 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
809 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 956 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
810 #define ecb_ctz32(x) __builtin_ctz (x) 957 #define ecb_ctz32(x) __builtin_ctz (x)
811 #define ecb_ctz64(x) __builtin_ctzll (x) 958 #define ecb_ctz64(x) __builtin_ctzll (x)
812 #define ecb_popcount32(x) __builtin_popcount (x) 959 #define ecb_popcount32(x) __builtin_popcount (x)
813 /* no popcountll */ 960 /* no popcountll */
814#else 961#else
815 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 962 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
816 ecb_function_ int 963 ecb_function_ ecb_const int
817 ecb_ctz32 (uint32_t x) 964 ecb_ctz32 (uint32_t x)
818 { 965 {
966#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
967 unsigned long r;
968 _BitScanForward (&r, x);
969 return (int)r;
970#else
819 int r = 0; 971 int r = 0;
820 972
821 x &= ~x + 1; /* this isolates the lowest bit */ 973 x &= ~x + 1; /* this isolates the lowest bit */
822 974
823#if ECB_branchless_on_i386 975#if ECB_branchless_on_i386
… …
833 if (x & 0xff00ff00) r += 8; 985 if (x & 0xff00ff00) r += 8;
834 if (x & 0xffff0000) r += 16; 986 if (x & 0xffff0000) r += 16;
835#endif 987#endif
836 988
837 return r; 989 return r;
990#endif
838 } 991 }
839 992
840 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 993 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
841 ecb_function_ int 994 ecb_function_ ecb_const int
842 ecb_ctz64 (uint64_t x) 995 ecb_ctz64 (uint64_t x)
843 { 996 {
997#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
998 unsigned long r;
999 _BitScanForward64 (&r, x);
1000 return (int)r;
1001#else
844 int shift = x & 0xffffffffU ? 0 : 32; 1002 int shift = x & 0xffffffff ? 0 : 32;
845 return ecb_ctz32 (x >> shift) + shift; 1003 return ecb_ctz32 (x >> shift) + shift;
1004#endif
846 } 1005 }
847 1006
848 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1007 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
849 ecb_function_ int 1008 ecb_function_ ecb_const int
850 ecb_popcount32 (uint32_t x) 1009 ecb_popcount32 (uint32_t x)
851 { 1010 {
852 x -= (x >> 1) & 0x55555555; 1011 x -= (x >> 1) & 0x55555555;
853 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1012 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
854 x = ((x >> 4) + x) & 0x0f0f0f0f; 1013 x = ((x >> 4) + x) & 0x0f0f0f0f;
855 x *= 0x01010101; 1014 x *= 0x01010101;
856 1015
857 return x >> 24; 1016 return x >> 24;
858 } 1017 }
859 1018
860 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1019 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
861 ecb_function_ int ecb_ld32 (uint32_t x) 1020 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
862 { 1021 {
1022#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1023 unsigned long r;
1024 _BitScanReverse (&r, x);
1025 return (int)r;
1026#else
863 int r = 0; 1027 int r = 0;
864 1028
865 if (x >> 16) { x >>= 16; r += 16; } 1029 if (x >> 16) { x >>= 16; r += 16; }
866 if (x >> 8) { x >>= 8; r += 8; } 1030 if (x >> 8) { x >>= 8; r += 8; }
867 if (x >> 4) { x >>= 4; r += 4; } 1031 if (x >> 4) { x >>= 4; r += 4; }
868 if (x >> 2) { x >>= 2; r += 2; } 1032 if (x >> 2) { x >>= 2; r += 2; }
869 if (x >> 1) { r += 1; } 1033 if (x >> 1) { r += 1; }
870 1034
871 return r; 1035 return r;
1036#endif
872 } 1037 }
873 1038
874 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1039 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
875 ecb_function_ int ecb_ld64 (uint64_t x) 1040 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
876 { 1041 {
1042#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1043 unsigned long r;
1044 _BitScanReverse64 (&r, x);
1045 return (int)r;
1046#else
877 int r = 0; 1047 int r = 0;
878 1048
879 if (x >> 32) { x >>= 32; r += 32; } 1049 if (x >> 32) { x >>= 32; r += 32; }
880 1050
881 return r + ecb_ld32 (x); 1051 return r + ecb_ld32 (x);
1052#endif
882 } 1053 }
883#endif 1054#endif
884 1055
885ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1056ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
886ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1057ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
887ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1058ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
888ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1059ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
889 1060
890ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1061ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
891ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1062ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
892{ 1063{
893 return ( (x * 0x0802U & 0x22110U) 1064 return ( (x * 0x0802U & 0x22110U)
894 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1065 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
895} 1066}
896 1067
897ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1068ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
898ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1069ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
899{ 1070{
900 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1071 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
901 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1072 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
902 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1073 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
903 x = ( x >> 8 ) | ( x << 8); 1074 x = ( x >> 8 ) | ( x << 8);
904 1075
905 return x; 1076 return x;
906} 1077}
907 1078
908ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1079ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
909ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1080ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
910{ 1081{
911 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1082 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
912 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1083 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
913 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1084 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
914 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1085 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
917 return x; 1088 return x;
918} 1089}
919 1090
920/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1091/* popcount64 is only available on 64 bit cpus as gcc builtin */
921/* so for this version we are lazy */ 1092/* so for this version we are lazy */
922ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1093ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
923ecb_function_ int 1094ecb_function_ ecb_const int
924ecb_popcount64 (uint64_t x) 1095ecb_popcount64 (uint64_t x)
925{ 1096{
926 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1097 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
927} 1098}
928 1099
929ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
930ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
931ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
932ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
933ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1104ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
934ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1105ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
935ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1106ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
936ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1107ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
937 1108
938ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1109ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
939ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1110ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
940ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1111ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
941ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1112ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
942ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1113ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
943ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1114ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
944ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1115ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
945ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1116ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
946 1117
947#if ECB_GCC_VERSION(4,3) 1118#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1119 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1120 #define ecb_bswap16(x) __builtin_bswap16 (x)
1121 #else
948 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1122 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1123 #endif
949 #define ecb_bswap32(x) __builtin_bswap32 (x) 1124 #define ecb_bswap32(x) __builtin_bswap32 (x)
950 #define ecb_bswap64(x) __builtin_bswap64 (x) 1125 #define ecb_bswap64(x) __builtin_bswap64 (x)
1126#elif _MSC_VER
1127 #include <stdlib.h>
1128 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1129 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1130 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
951#else 1131#else
952 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1132 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
953 ecb_function_ uint16_t 1133 ecb_function_ ecb_const uint16_t
954 ecb_bswap16 (uint16_t x) 1134 ecb_bswap16 (uint16_t x)
955 { 1135 {
956 return ecb_rotl16 (x, 8); 1136 return ecb_rotl16 (x, 8);
957 } 1137 }
958 1138
959 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1139 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
960 ecb_function_ uint32_t 1140 ecb_function_ ecb_const uint32_t
961 ecb_bswap32 (uint32_t x) 1141 ecb_bswap32 (uint32_t x)
962 { 1142 {
963 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1143 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
964 } 1144 }
965 1145
966 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1146 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
967 ecb_function_ uint64_t 1147 ecb_function_ ecb_const uint64_t
968 ecb_bswap64 (uint64_t x) 1148 ecb_bswap64 (uint64_t x)
969 { 1149 {
970 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1150 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
971 } 1151 }
972#endif 1152#endif
973 1153
974#if ECB_GCC_VERSION(4,5) 1154#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
975 #define ecb_unreachable() __builtin_unreachable () 1155 #define ecb_unreachable() __builtin_unreachable ()
976#else 1156#else
977 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1157 /* this seems to work fine, but gcc always emits a warning for it :/ */
978 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1158 ecb_inline ecb_noreturn void ecb_unreachable (void);
979 ecb_inline void ecb_unreachable (void) { } 1159 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
980#endif 1160#endif
981 1161
982/* try to tell the compiler that some condition is definitely true */ 1162/* try to tell the compiler that some condition is definitely true */
983#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1163#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
984 1164
985ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1165ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
986ecb_inline unsigned char 1166ecb_inline ecb_const uint32_t
987ecb_byteorder_helper (void) 1167ecb_byteorder_helper (void)
988{ 1168{
989 /* the union code still generates code under pressure in gcc, */ 1169 /* the union code still generates code under pressure in gcc, */
990 /* but less than using pointers, and always seems to */ 1170 /* but less than using pointers, and always seems to */
991 /* successfully return a constant. */ 1171 /* successfully return a constant. */
992 /* the reason why we have this horrible preprocessor mess */ 1172 /* the reason why we have this horrible preprocessor mess */
993 /* is to avoid it in all cases, at least on common architectures */ 1173 /* is to avoid it in all cases, at least on common architectures */
994 /* or when using a recent enough gcc version (>= 4.6) */ 1174 /* or when using a recent enough gcc version (>= 4.6) */
995#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
996 return 0x44;
997#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1175#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1176 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1177 #define ECB_LITTLE_ENDIAN 1
998 return 0x44; 1178 return 0x44332211;
999#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1179#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1180 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1181 #define ECB_BIG_ENDIAN 1
1000 return 0x11; 1182 return 0x11223344;
1001#else 1183#else
1002 union 1184 union
1003 { 1185 {
1186 uint8_t c[4];
1004 uint32_t i; 1187 uint32_t u;
1005 uint8_t c;
1006 } u = { 0x11223344 }; 1188 } u = { 0x11, 0x22, 0x33, 0x44 };
1007 return u.c; 1189 return u.u;
1008#endif 1190#endif
1009} 1191}
1010 1192
1011ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1193ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1012ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1194ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1013ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1195ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1014ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1196ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1015 1197
1016#if ECB_GCC_VERSION(3,0) || ECB_C99 1198#if ECB_GCC_VERSION(3,0) || ECB_C99
1017 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1199 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1018#else 1200#else
1019 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1201 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1020#endif 1202#endif
1021 1203
1022#if __cplusplus 1204#if ECB_CPP
1023 template<typename T> 1205 template<typename T>
1024 static inline T ecb_div_rd (T val, T div) 1206 static inline T ecb_div_rd (T val, T div)
1025 { 1207 {
1026 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1208 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1027 } 1209 }
… …
1044 } 1226 }
1045#else 1227#else
1046 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1228 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1047#endif 1229#endif
1048 1230
1231ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1232ecb_function_ ecb_const uint32_t
1233ecb_binary16_to_binary32 (uint32_t x)
1234{
1235 unsigned int s = (x & 0x8000) << (31 - 15);
1236 int e = (x >> 10) & 0x001f;
1237 unsigned int m = x & 0x03ff;
1238
1239 if (ecb_expect_false (e == 31))
1240 /* infinity or NaN */
1241 e = 255 - (127 - 15);
1242 else if (ecb_expect_false (!e))
1243 {
1244 if (ecb_expect_true (!m))
1245 /* zero, handled by code below by forcing e to 0 */
1246 e = 0 - (127 - 15);
1247 else
1248 {
1249 /* subnormal, renormalise */
1250 unsigned int s = 10 - ecb_ld32 (m);
1251
1252 m = (m << s) & 0x3ff; /* mask implicit bit */
1253 e -= s - 1;
1254 }
1255 }
1256
1257 /* e and m now are normalised, or zero, (or inf or nan) */
1258 e += 127 - 15;
1259
1260 return s | (e << 23) | (m << (23 - 10));
1261}
1262
1263ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1264ecb_function_ ecb_const uint16_t
1265ecb_binary32_to_binary16 (uint32_t x)
1266{
1267 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1268 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1269 unsigned int m = x & 0x007fffff;
1270
1271 x &= 0x7fffffff;
1272
1273 /* if it's within range of binary16 normals, use fast path */
1274 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1275 {
1276 /* mantissa round-to-even */
1277 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1278
1279 /* handle overflow */
1280 if (ecb_expect_false (m >= 0x00800000))
1281 {
1282 m >>= 1;
1283 e += 1;
1284 }
1285
1286 return s | (e << 10) | (m >> (23 - 10));
1287 }
1288
1289 /* handle large numbers and infinity */
1290 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1291 return s | 0x7c00;
1292
1293 /* handle zero, subnormals and small numbers */
1294 if (ecb_expect_true (x < 0x38800000))
1295 {
1296 /* zero */
1297 if (ecb_expect_true (!x))
1298 return s;
1299
1300 /* handle subnormals */
1301
1302 /* too small, will be zero */
1303 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1304 return s;
1305
1306 m |= 0x00800000; /* make implicit bit explicit */
1307
1308 /* very tricky - we need to round to the nearest e (+10) bit value */
1309 {
1310 unsigned int bits = 14 - e;
1311 unsigned int half = (1 << (bits - 1)) - 1;
1312 unsigned int even = (m >> bits) & 1;
1313
1314 /* if this overflows, we will end up with a normalised number */
1315 m = (m + half + even) >> bits;
1316 }
1317
1318 return s | m;
1319 }
1320
1321 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1322 m >>= 13;
1323
1324 return s | 0x7c00 | m | !m;
1325}
1326
1049/*******************************************************************************/ 1327/*******************************************************************************/
1050/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1328/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1051 1329
1052/* basically, everything uses "ieee pure-endian" floating point numbers */ 1330/* basically, everything uses "ieee pure-endian" floating point numbers */
1053/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1331/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1054#if 0 \ 1332#if 0 \
1055 || __i386 || __i386__ \ 1333 || __i386 || __i386__ \
1056 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1334 || ECB_GCC_AMD64 \
1057 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1335 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1058 || defined __arm__ && defined __ARM_EABI__ \
1059 || defined __s390__ || defined __s390x__ \ 1336 || defined __s390__ || defined __s390x__ \
1060 || defined __mips__ \ 1337 || defined __mips__ \
1061 || defined __alpha__ \ 1338 || defined __alpha__ \
1062 || defined __hppa__ \ 1339 || defined __hppa__ \
1063 || defined __ia64__ \ 1340 || defined __ia64__ \
1064 || defined __m68k__ \ 1341 || defined __m68k__ \
1065 || defined __m88k__ \ 1342 || defined __m88k__ \
1066 || defined __sh__ \ 1343 || defined __sh__ \
1067 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1344 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1345 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1346 || defined __aarch64__
1068 #define ECB_STDFP 1 1347 #define ECB_STDFP 1
1069 #include <string.h> /* for memcpy */ 1348 #include <string.h> /* for memcpy */
1070#else 1349#else
1071 #define ECB_STDFP 0 1350 #define ECB_STDFP 0
1072#endif 1351#endif
1073 1352
1074#ifndef ECB_NO_LIBM 1353#ifndef ECB_NO_LIBM
1075 1354
1076 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ 1355 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1077 1356
1357 /* only the oldest of old doesn't have this one. solaris. */
1358 #ifdef INFINITY
1359 #define ECB_INFINITY INFINITY
1360 #else
1361 #define ECB_INFINITY HUGE_VAL
1362 #endif
1363
1078 #ifdef NEN 1364 #ifdef NAN
1079 #define ECB_NAN NAN 1365 #define ECB_NAN NAN
1080 #else 1366 #else
1081 #define ECB_NAN INFINITY 1367 #define ECB_NAN ECB_INFINITY
1082 #endif 1368 #endif
1083 1369
1084 /* converts an ieee half/binary16 to a float */ 1370 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1085 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1371 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1086 ecb_function_ float 1372 #define ecb_frexpf(x,e) frexpf ((x), (e))
1087 ecb_binary16_to_float (uint16_t x) 1373 #else
1088 { 1374 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1089 int e = (x >> 10) & 0x1f; 1375 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1090 int m = x & 0x3ff; 1376 #endif
1091 float r;
1092
1093 if (!e ) r = ldexpf (m , -24);
1094 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1095 else if (m ) r = ECB_NAN;
1096 else r = INFINITY;
1097
1098 return x & 0x8000 ? -r : r;
1099 }
1100 1377
1101 /* convert a float to ieee single/binary32 */ 1378 /* convert a float to ieee single/binary32 */
1102 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1379 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1103 ecb_function_ uint32_t 1380 ecb_function_ ecb_const uint32_t
1104 ecb_float_to_binary32 (float x) 1381 ecb_float_to_binary32 (float x)
1105 { 1382 {
1106 uint32_t r; 1383 uint32_t r;
1107 1384
1108 #if ECB_STDFP 1385 #if ECB_STDFP
… …
1115 if (x == 0e0f ) return 0x00000000U; 1392 if (x == 0e0f ) return 0x00000000U;
1116 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1393 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1117 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1394 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1118 if (x != x ) return 0x7fbfffffU; 1395 if (x != x ) return 0x7fbfffffU;
1119 1396
1120 m = frexpf (x, &e) * 0x1000000U; 1397 m = ecb_frexpf (x, &e) * 0x1000000U;
1121 1398
1122 r = m & 0x80000000U; 1399 r = m & 0x80000000U;
1123 1400
1124 if (r) 1401 if (r)
1125 m = -m; 1402 m = -m;
… …
1137 1414
1138 return r; 1415 return r;
1139 } 1416 }
1140 1417
1141 /* converts an ieee single/binary32 to a float */ 1418 /* converts an ieee single/binary32 to a float */
1142 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1419 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1143 ecb_function_ float 1420 ecb_function_ ecb_const float
1144 ecb_binary32_to_float (uint32_t x) 1421 ecb_binary32_to_float (uint32_t x)
1145 { 1422 {
1146 float r; 1423 float r;
1147 1424
1148 #if ECB_STDFP 1425 #if ECB_STDFP
… …
1158 x |= 0x800000U; 1435 x |= 0x800000U;
1159 else 1436 else
1160 e = 1; 1437 e = 1;
1161 1438
1162 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1439 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1163 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1440 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1164 1441
1165 r = neg ? -r : r; 1442 r = neg ? -r : r;
1166 #endif 1443 #endif
1167 1444
1168 return r; 1445 return r;
1169 } 1446 }
1170 1447
1171 /* convert a double to ieee double/binary64 */ 1448 /* convert a double to ieee double/binary64 */
1172 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1449 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1173 ecb_function_ uint64_t 1450 ecb_function_ ecb_const uint64_t
1174 ecb_double_to_binary64 (double x) 1451 ecb_double_to_binary64 (double x)
1175 { 1452 {
1176 uint64_t r; 1453 uint64_t r;
1177 1454
1178 #if ECB_STDFP 1455 #if ECB_STDFP
… …
1207 1484
1208 return r; 1485 return r;
1209 } 1486 }
1210 1487
1211 /* converts an ieee double/binary64 to a double */ 1488 /* converts an ieee double/binary64 to a double */
1212 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1489 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1213 ecb_function_ double 1490 ecb_function_ ecb_const double
1214 ecb_binary64_to_double (uint64_t x) 1491 ecb_binary64_to_double (uint64_t x)
1215 { 1492 {
1216 double r; 1493 double r;
1217 1494
1218 #if ECB_STDFP 1495 #if ECB_STDFP
… …
1234 1511
1235 r = neg ? -r : r; 1512 r = neg ? -r : r;
1236 #endif 1513 #endif
1237 1514
1238 return r; 1515 return r;
1516 }
1517
1518 /* convert a float to ieee half/binary16 */
1519 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1520 ecb_function_ ecb_const uint16_t
1521 ecb_float_to_binary16 (float x)
1522 {
1523 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1524 }
1525
1526 /* convert an ieee half/binary16 to float */
1527 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1528 ecb_function_ ecb_const float
1529 ecb_binary16_to_float (uint16_t x)
1530 {
1531 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1239 } 1532 }
1240 1533
1241#endif 1534#endif
1242 1535
1243#endif 1536#endif
… …
1268#define inline_size ecb_inline 1561#define inline_size ecb_inline
1269 1562
1270#if EV_FEATURE_CODE 1563#if EV_FEATURE_CODE
1271# define inline_speed ecb_inline 1564# define inline_speed ecb_inline
1272#else 1565#else
1273# define inline_speed static noinline 1566# define inline_speed noinline static
1274#endif 1567#endif
1275 1568
1276#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1569#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1277 1570
1278#if EV_MINPRI == EV_MAXPRI 1571#if EV_MINPRI == EV_MAXPRI
1279# define ABSPRI(w) (((W)w), 0) 1572# define ABSPRI(w) (((W)w), 0)
1280#else 1573#else
1281# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1574# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1282#endif 1575#endif
1283 1576
1284#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1577#define EMPTY /* required for microsofts broken pseudo-c compiler */
1285#define EMPTY2(a,b) /* used to suppress some warnings */
1286 1578
1287typedef ev_watcher *W; 1579typedef ev_watcher *W;
1288typedef ev_watcher_list *WL; 1580typedef ev_watcher_list *WL;
1289typedef ev_watcher_time *WT; 1581typedef ev_watcher_time *WT;
1290 1582
… …
1325#else 1617#else
1326 1618
1327#include <float.h> 1619#include <float.h>
1328 1620
1329/* a floor() replacement function, should be independent of ev_tstamp type */ 1621/* a floor() replacement function, should be independent of ev_tstamp type */
1622noinline
1330static ev_tstamp noinline 1623static ev_tstamp
1331ev_floor (ev_tstamp v) 1624ev_floor (ev_tstamp v)
1332{ 1625{
1333 /* the choice of shift factor is not terribly important */ 1626 /* the choice of shift factor is not terribly important */
1334#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1627#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1335 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1367 1660
1368#ifdef __linux 1661#ifdef __linux
1369# include <sys/utsname.h> 1662# include <sys/utsname.h>
1370#endif 1663#endif
1371 1664
1372static unsigned int noinline ecb_cold 1665noinline ecb_cold
1666static unsigned int
1373ev_linux_version (void) 1667ev_linux_version (void)
1374{ 1668{
1375#ifdef __linux 1669#ifdef __linux
1376 unsigned int v = 0; 1670 unsigned int v = 0;
1377 struct utsname buf; 1671 struct utsname buf;
… …
1406} 1700}
1407 1701
1408/*****************************************************************************/ 1702/*****************************************************************************/
1409 1703
1410#if EV_AVOID_STDIO 1704#if EV_AVOID_STDIO
1411static void noinline ecb_cold 1705noinline ecb_cold
1706static void
1412ev_printerr (const char *msg) 1707ev_printerr (const char *msg)
1413{ 1708{
1414 write (STDERR_FILENO, msg, strlen (msg)); 1709 write (STDERR_FILENO, msg, strlen (msg));
1415} 1710}
1416#endif 1711#endif
1417 1712
1418static void (*syserr_cb)(const char *msg) EV_THROW; 1713static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1419 1714
1420void ecb_cold 1715ecb_cold
1716void
1421ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1717ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1422{ 1718{
1423 syserr_cb = cb; 1719 syserr_cb = cb;
1424} 1720}
1425 1721
1426static void noinline ecb_cold 1722noinline ecb_cold
1723static void
1427ev_syserr (const char *msg) 1724ev_syserr (const char *msg)
1428{ 1725{
1429 if (!msg) 1726 if (!msg)
1430 msg = "(libev) system error"; 1727 msg = "(libev) system error";
1431 1728
… …
1444 abort (); 1741 abort ();
1445 } 1742 }
1446} 1743}
1447 1744
1448static void * 1745static void *
1449ev_realloc_emul (void *ptr, long size) EV_THROW 1746ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1450{ 1747{
1451 /* some systems, notably openbsd and darwin, fail to properly 1748 /* some systems, notably openbsd and darwin, fail to properly
1452 * implement realloc (x, 0) (as required by both ansi c-89 and 1749 * implement realloc (x, 0) (as required by both ansi c-89 and
1453 * the single unix specification, so work around them here. 1750 * the single unix specification, so work around them here.
1454 * recently, also (at least) fedora and debian started breaking it, 1751 * recently, also (at least) fedora and debian started breaking it,
… …
1460 1757
1461 free (ptr); 1758 free (ptr);
1462 return 0; 1759 return 0;
1463} 1760}
1464 1761
1465static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1762static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1466 1763
1467void ecb_cold 1764ecb_cold
1765void
1468ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1766ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1469{ 1767{
1470 alloc = cb; 1768 alloc = cb;
1471} 1769}
1472 1770
1473inline_speed void * 1771inline_speed void *
… …
1500typedef struct 1798typedef struct
1501{ 1799{
1502 WL head; 1800 WL head;
1503 unsigned char events; /* the events watched for */ 1801 unsigned char events; /* the events watched for */
1504 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1802 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1505 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1803 unsigned char emask; /* some backends store the actual kernel mask in here */
1506 unsigned char unused; 1804 unsigned char unused;
1507#if EV_USE_EPOLL 1805#if EV_USE_EPOLL
1508 unsigned int egen; /* generation counter to counter epoll bugs */ 1806 unsigned int egen; /* generation counter to counter epoll bugs */
1509#endif 1807#endif
1510#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1808#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1590 1888
1591/*****************************************************************************/ 1889/*****************************************************************************/
1592 1890
1593#ifndef EV_HAVE_EV_TIME 1891#ifndef EV_HAVE_EV_TIME
1594ev_tstamp 1892ev_tstamp
1595ev_time (void) EV_THROW 1893ev_time (void) EV_NOEXCEPT
1596{ 1894{
1597#if EV_USE_REALTIME 1895#if EV_USE_REALTIME
1598 if (expect_true (have_realtime)) 1896 if (expect_true (have_realtime))
1599 { 1897 {
1600 struct timespec ts; 1898 struct timespec ts;
… …
1624 return ev_time (); 1922 return ev_time ();
1625} 1923}
1626 1924
1627#if EV_MULTIPLICITY 1925#if EV_MULTIPLICITY
1628ev_tstamp 1926ev_tstamp
1629ev_now (EV_P) EV_THROW 1927ev_now (EV_P) EV_NOEXCEPT
1630{ 1928{
1631 return ev_rt_now; 1929 return ev_rt_now;
1632} 1930}
1633#endif 1931#endif
1634 1932
1635void 1933void
1636ev_sleep (ev_tstamp delay) EV_THROW 1934ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1637{ 1935{
1638 if (delay > 0.) 1936 if (delay > 0.)
1639 { 1937 {
1640#if EV_USE_NANOSLEEP 1938#if EV_USE_NANOSLEEP
1641 struct timespec ts; 1939 struct timespec ts;
1642 1940
1643 EV_TS_SET (ts, delay); 1941 EV_TS_SET (ts, delay);
1644 nanosleep (&ts, 0); 1942 nanosleep (&ts, 0);
1645#elif defined _WIN32 1943#elif defined _WIN32
1944 /* maybe this should round up, as ms is very low resolution */
1945 /* compared to select (µs) or nanosleep (ns) */
1646 Sleep ((unsigned long)(delay * 1e3)); 1946 Sleep ((unsigned long)(delay * 1e3));
1647#else 1947#else
1648 struct timeval tv; 1948 struct timeval tv;
1649 1949
1650 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1950 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1681 } 1981 }
1682 1982
1683 return ncur; 1983 return ncur;
1684} 1984}
1685 1985
1686static void * noinline ecb_cold 1986noinline ecb_cold
1987static void *
1687array_realloc (int elem, void *base, int *cur, int cnt) 1988array_realloc (int elem, void *base, int *cur, int cnt)
1688{ 1989{
1689 *cur = array_nextsize (elem, *cur, cnt); 1990 *cur = array_nextsize (elem, *cur, cnt);
1690 return ev_realloc (base, elem * *cur); 1991 return ev_realloc (base, elem * *cur);
1691} 1992}
1692 1993
1994#define array_needsize_noinit(base,count)
1995
1693#define array_init_zero(base,count) \ 1996#define array_needsize_zerofill(base,count) \
1694 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1997 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1695 1998
1696#define array_needsize(type,base,cur,cnt,init) \ 1999#define array_needsize(type,base,cur,cnt,init) \
1697 if (expect_false ((cnt) > (cur))) \ 2000 if (expect_false ((cnt) > (cur))) \
1698 { \ 2001 { \
1699 int ecb_unused ocur_ = (cur); \ 2002 ecb_unused int ocur_ = (cur); \
1700 (base) = (type *)array_realloc \ 2003 (base) = (type *)array_realloc \
1701 (sizeof (type), (base), &(cur), (cnt)); \ 2004 (sizeof (type), (base), &(cur), (cnt)); \
1702 init ((base) + (ocur_), (cur) - ocur_); \ 2005 init ((base) + (ocur_), (cur) - ocur_); \
1703 } 2006 }
1704 2007
… …
1716 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2019 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1717 2020
1718/*****************************************************************************/ 2021/*****************************************************************************/
1719 2022
1720/* dummy callback for pending events */ 2023/* dummy callback for pending events */
1721static void noinline 2024noinline
2025static void
1722pendingcb (EV_P_ ev_prepare *w, int revents) 2026pendingcb (EV_P_ ev_prepare *w, int revents)
1723{ 2027{
1724} 2028}
1725 2029
1726void noinline 2030noinline
2031void
1727ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2032ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1728{ 2033{
1729 W w_ = (W)w; 2034 W w_ = (W)w;
1730 int pri = ABSPRI (w_); 2035 int pri = ABSPRI (w_);
1731 2036
1732 if (expect_false (w_->pending)) 2037 if (expect_false (w_->pending))
1733 pendings [pri][w_->pending - 1].events |= revents; 2038 pendings [pri][w_->pending - 1].events |= revents;
1734 else 2039 else
1735 { 2040 {
1736 w_->pending = ++pendingcnt [pri]; 2041 w_->pending = ++pendingcnt [pri];
1737 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2042 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1738 pendings [pri][w_->pending - 1].w = w_; 2043 pendings [pri][w_->pending - 1].w = w_;
1739 pendings [pri][w_->pending - 1].events = revents; 2044 pendings [pri][w_->pending - 1].events = revents;
1740 } 2045 }
1741 2046
1742 pendingpri = NUMPRI - 1; 2047 pendingpri = NUMPRI - 1;
1743} 2048}
1744 2049
1745inline_speed void 2050inline_speed void
1746feed_reverse (EV_P_ W w) 2051feed_reverse (EV_P_ W w)
1747{ 2052{
1748 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2053 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1749 rfeeds [rfeedcnt++] = w; 2054 rfeeds [rfeedcnt++] = w;
1750} 2055}
1751 2056
1752inline_size void 2057inline_size void
1753feed_reverse_done (EV_P_ int revents) 2058feed_reverse_done (EV_P_ int revents)
… …
1793 if (expect_true (!anfd->reify)) 2098 if (expect_true (!anfd->reify))
1794 fd_event_nocheck (EV_A_ fd, revents); 2099 fd_event_nocheck (EV_A_ fd, revents);
1795} 2100}
1796 2101
1797void 2102void
1798ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2103ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1799{ 2104{
1800 if (fd >= 0 && fd < anfdmax) 2105 if (fd >= 0 && fd < anfdmax)
1801 fd_event_nocheck (EV_A_ fd, revents); 2106 fd_event_nocheck (EV_A_ fd, revents);
1802} 2107}
1803 2108
… …
1861 2166
1862 fdchangecnt = 0; 2167 fdchangecnt = 0;
1863} 2168}
1864 2169
1865/* something about the given fd changed */ 2170/* something about the given fd changed */
1866inline_size void 2171inline_size
2172void
1867fd_change (EV_P_ int fd, int flags) 2173fd_change (EV_P_ int fd, int flags)
1868{ 2174{
1869 unsigned char reify = anfds [fd].reify; 2175 unsigned char reify = anfds [fd].reify;
1870 anfds [fd].reify |= flags; 2176 anfds [fd].reify |= flags;
1871 2177
1872 if (expect_true (!reify)) 2178 if (expect_true (!reify))
1873 { 2179 {
1874 ++fdchangecnt; 2180 ++fdchangecnt;
1875 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2181 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1876 fdchanges [fdchangecnt - 1] = fd; 2182 fdchanges [fdchangecnt - 1] = fd;
1877 } 2183 }
1878} 2184}
1879 2185
1880/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2186/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1881inline_speed void ecb_cold 2187inline_speed ecb_cold void
1882fd_kill (EV_P_ int fd) 2188fd_kill (EV_P_ int fd)
1883{ 2189{
1884 ev_io *w; 2190 ev_io *w;
1885 2191
1886 while ((w = (ev_io *)anfds [fd].head)) 2192 while ((w = (ev_io *)anfds [fd].head))
… …
1889 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2195 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1890 } 2196 }
1891} 2197}
1892 2198
1893/* check whether the given fd is actually valid, for error recovery */ 2199/* check whether the given fd is actually valid, for error recovery */
1894inline_size int ecb_cold 2200inline_size ecb_cold int
1895fd_valid (int fd) 2201fd_valid (int fd)
1896{ 2202{
1897#ifdef _WIN32 2203#ifdef _WIN32
1898 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2204 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1899#else 2205#else
1900 return fcntl (fd, F_GETFD) != -1; 2206 return fcntl (fd, F_GETFD) != -1;
1901#endif 2207#endif
1902} 2208}
1903 2209
1904/* called on EBADF to verify fds */ 2210/* called on EBADF to verify fds */
1905static void noinline ecb_cold 2211noinline ecb_cold
2212static void
1906fd_ebadf (EV_P) 2213fd_ebadf (EV_P)
1907{ 2214{
1908 int fd; 2215 int fd;
1909 2216
1910 for (fd = 0; fd < anfdmax; ++fd) 2217 for (fd = 0; fd < anfdmax; ++fd)
… …
1912 if (!fd_valid (fd) && errno == EBADF) 2219 if (!fd_valid (fd) && errno == EBADF)
1913 fd_kill (EV_A_ fd); 2220 fd_kill (EV_A_ fd);
1914} 2221}
1915 2222
1916/* called on ENOMEM in select/poll to kill some fds and retry */ 2223/* called on ENOMEM in select/poll to kill some fds and retry */
1917static void noinline ecb_cold 2224noinline ecb_cold
2225static void
1918fd_enomem (EV_P) 2226fd_enomem (EV_P)
1919{ 2227{
1920 int fd; 2228 int fd;
1921 2229
1922 for (fd = anfdmax; fd--; ) 2230 for (fd = anfdmax; fd--; )
… …
1926 break; 2234 break;
1927 } 2235 }
1928} 2236}
1929 2237
1930/* usually called after fork if backend needs to re-arm all fds from scratch */ 2238/* usually called after fork if backend needs to re-arm all fds from scratch */
1931static void noinline 2239noinline
2240static void
1932fd_rearm_all (EV_P) 2241fd_rearm_all (EV_P)
1933{ 2242{
1934 int fd; 2243 int fd;
1935 2244
1936 for (fd = 0; fd < anfdmax; ++fd) 2245 for (fd = 0; fd < anfdmax; ++fd)
… …
2117 2426
2118/*****************************************************************************/ 2427/*****************************************************************************/
2119 2428
2120#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2429#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2121 2430
2122static void noinline ecb_cold 2431noinline ecb_cold
2432static void
2123evpipe_init (EV_P) 2433evpipe_init (EV_P)
2124{ 2434{
2125 if (!ev_is_active (&pipe_w)) 2435 if (!ev_is_active (&pipe_w))
2126 { 2436 {
2127 int fds [2]; 2437 int fds [2];
… …
2198#endif 2508#endif
2199 { 2509 {
2200#ifdef _WIN32 2510#ifdef _WIN32
2201 WSABUF buf; 2511 WSABUF buf;
2202 DWORD sent; 2512 DWORD sent;
2203 buf.buf = &buf; 2513 buf.buf = (char *)&buf;
2204 buf.len = 1; 2514 buf.len = 1;
2205 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2515 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2206#else 2516#else
2207 write (evpipe [1], &(evpipe [1]), 1); 2517 write (evpipe [1], &(evpipe [1]), 1);
2208#endif 2518#endif
… …
2280} 2590}
2281 2591
2282/*****************************************************************************/ 2592/*****************************************************************************/
2283 2593
2284void 2594void
2285ev_feed_signal (int signum) EV_THROW 2595ev_feed_signal (int signum) EV_NOEXCEPT
2286{ 2596{
2287#if EV_MULTIPLICITY 2597#if EV_MULTIPLICITY
2288 EV_P; 2598 EV_P;
2289 ECB_MEMORY_FENCE_ACQUIRE; 2599 ECB_MEMORY_FENCE_ACQUIRE;
2290 EV_A = signals [signum - 1].loop; 2600 EV_A = signals [signum - 1].loop;
… …
2305#endif 2615#endif
2306 2616
2307 ev_feed_signal (signum); 2617 ev_feed_signal (signum);
2308} 2618}
2309 2619
2310void noinline 2620noinline
2621void
2311ev_feed_signal_event (EV_P_ int signum) EV_THROW 2622ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2312{ 2623{
2313 WL w; 2624 WL w;
2314 2625
2315 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2626 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2316 return; 2627 return;
… …
2422# include "ev_port.c" 2733# include "ev_port.c"
2423#endif 2734#endif
2424#if EV_USE_KQUEUE 2735#if EV_USE_KQUEUE
2425# include "ev_kqueue.c" 2736# include "ev_kqueue.c"
2426#endif 2737#endif
2738#if EV_USE_LINUXAIO
2739# include "ev_linuxaio.c"
2740#endif
2427#if EV_USE_EPOLL 2741#if EV_USE_EPOLL
2428# include "ev_epoll.c" 2742# include "ev_epoll.c"
2429#endif 2743#endif
2430#if EV_USE_POLL 2744#if EV_USE_POLL
2431# include "ev_poll.c" 2745# include "ev_poll.c"
2432#endif 2746#endif
2433#if EV_USE_SELECT 2747#if EV_USE_SELECT
2434# include "ev_select.c" 2748# include "ev_select.c"
2435#endif 2749#endif
2436 2750
2437int ecb_cold 2751ecb_cold int
2438ev_version_major (void) EV_THROW 2752ev_version_major (void) EV_NOEXCEPT
2439{ 2753{
2440 return EV_VERSION_MAJOR; 2754 return EV_VERSION_MAJOR;
2441} 2755}
2442 2756
2443int ecb_cold 2757ecb_cold int
2444ev_version_minor (void) EV_THROW 2758ev_version_minor (void) EV_NOEXCEPT
2445{ 2759{
2446 return EV_VERSION_MINOR; 2760 return EV_VERSION_MINOR;
2447} 2761}
2448 2762
2449/* return true if we are running with elevated privileges and should ignore env variables */ 2763/* return true if we are running with elevated privileges and should ignore env variables */
2450int inline_size ecb_cold 2764inline_size ecb_cold int
2451enable_secure (void) 2765enable_secure (void)
2452{ 2766{
2453#ifdef _WIN32 2767#ifdef _WIN32
2454 return 0; 2768 return 0;
2455#else 2769#else
2456 return getuid () != geteuid () 2770 return getuid () != geteuid ()
2457 || getgid () != getegid (); 2771 || getgid () != getegid ();
2458#endif 2772#endif
2459} 2773}
2460 2774
2461unsigned int ecb_cold 2775ecb_cold
2776unsigned int
2462ev_supported_backends (void) EV_THROW 2777ev_supported_backends (void) EV_NOEXCEPT
2463{ 2778{
2464 unsigned int flags = 0; 2779 unsigned int flags = 0;
2465 2780
2466 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2781 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2467 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2782 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2468 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2783 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2784 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2469 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2785 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2470 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2786 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2471 2787
2472 return flags; 2788 return flags;
2473} 2789}
2474 2790
2475unsigned int ecb_cold 2791ecb_cold
2792unsigned int
2476ev_recommended_backends (void) EV_THROW 2793ev_recommended_backends (void) EV_NOEXCEPT
2477{ 2794{
2478 unsigned int flags = ev_supported_backends (); 2795 unsigned int flags = ev_supported_backends ();
2479 2796
2480#ifndef __NetBSD__ 2797#ifndef __NetBSD__
2481 /* kqueue is borked on everything but netbsd apparently */ 2798 /* kqueue is borked on everything but netbsd apparently */
… …
2489#endif 2806#endif
2490#ifdef __FreeBSD__ 2807#ifdef __FreeBSD__
2491 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2808 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2492#endif 2809#endif
2493 2810
2811 /* TODO: linuxaio is very experimental */
2812 flags &= ~EVBACKEND_LINUXAIO;
2813
2494 return flags; 2814 return flags;
2495} 2815}
2496 2816
2497unsigned int ecb_cold 2817ecb_cold
2818unsigned int
2498ev_embeddable_backends (void) EV_THROW 2819ev_embeddable_backends (void) EV_NOEXCEPT
2499{ 2820{
2500 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2821 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2501 2822
2502 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2823 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2503 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2824 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2505 2826
2506 return flags; 2827 return flags;
2507} 2828}
2508 2829
2509unsigned int 2830unsigned int
2510ev_backend (EV_P) EV_THROW 2831ev_backend (EV_P) EV_NOEXCEPT
2511{ 2832{
2512 return backend; 2833 return backend;
2513} 2834}
2514 2835
2515#if EV_FEATURE_API 2836#if EV_FEATURE_API
2516unsigned int 2837unsigned int
2517ev_iteration (EV_P) EV_THROW 2838ev_iteration (EV_P) EV_NOEXCEPT
2518{ 2839{
2519 return loop_count; 2840 return loop_count;
2520} 2841}
2521 2842
2522unsigned int 2843unsigned int
2523ev_depth (EV_P) EV_THROW 2844ev_depth (EV_P) EV_NOEXCEPT
2524{ 2845{
2525 return loop_depth; 2846 return loop_depth;
2526} 2847}
2527 2848
2528void 2849void
2529ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2850ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2530{ 2851{
2531 io_blocktime = interval; 2852 io_blocktime = interval;
2532} 2853}
2533 2854
2534void 2855void
2535ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2856ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2536{ 2857{
2537 timeout_blocktime = interval; 2858 timeout_blocktime = interval;
2538} 2859}
2539 2860
2540void 2861void
2541ev_set_userdata (EV_P_ void *data) EV_THROW 2862ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2542{ 2863{
2543 userdata = data; 2864 userdata = data;
2544} 2865}
2545 2866
2546void * 2867void *
2547ev_userdata (EV_P) EV_THROW 2868ev_userdata (EV_P) EV_NOEXCEPT
2548{ 2869{
2549 return userdata; 2870 return userdata;
2550} 2871}
2551 2872
2552void 2873void
2553ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2874ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2554{ 2875{
2555 invoke_cb = invoke_pending_cb; 2876 invoke_cb = invoke_pending_cb;
2556} 2877}
2557 2878
2558void 2879void
2559ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2880ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2560{ 2881{
2561 release_cb = release; 2882 release_cb = release;
2562 acquire_cb = acquire; 2883 acquire_cb = acquire;
2563} 2884}
2564#endif 2885#endif
2565 2886
2566/* initialise a loop structure, must be zero-initialised */ 2887/* initialise a loop structure, must be zero-initialised */
2567static void noinline ecb_cold 2888noinline ecb_cold
2889static void
2568loop_init (EV_P_ unsigned int flags) EV_THROW 2890loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2569{ 2891{
2570 if (!backend) 2892 if (!backend)
2571 { 2893 {
2572 origflags = flags; 2894 origflags = flags;
2573 2895
… …
2631 2953
2632 if (!(flags & EVBACKEND_MASK)) 2954 if (!(flags & EVBACKEND_MASK))
2633 flags |= ev_recommended_backends (); 2955 flags |= ev_recommended_backends ();
2634 2956
2635#if EV_USE_IOCP 2957#if EV_USE_IOCP
2636 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2958 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2637#endif 2959#endif
2638#if EV_USE_PORT 2960#if EV_USE_PORT
2639 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2961 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2640#endif 2962#endif
2641#if EV_USE_KQUEUE 2963#if EV_USE_KQUEUE
2642 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2964 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2965#endif
2966#if EV_USE_LINUXAIO
2967 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2643#endif 2968#endif
2644#if EV_USE_EPOLL 2969#if EV_USE_EPOLL
2645 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2970 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2646#endif 2971#endif
2647#if EV_USE_POLL 2972#if EV_USE_POLL
2648 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2973 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2649#endif 2974#endif
2650#if EV_USE_SELECT 2975#if EV_USE_SELECT
2651 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2976 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2652#endif 2977#endif
2653 2978
2654 ev_prepare_init (&pending_w, pendingcb); 2979 ev_prepare_init (&pending_w, pendingcb);
2655 2980
2656#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2981#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2659#endif 2984#endif
2660 } 2985 }
2661} 2986}
2662 2987
2663/* free up a loop structure */ 2988/* free up a loop structure */
2664void ecb_cold 2989ecb_cold
2990void
2665ev_loop_destroy (EV_P) 2991ev_loop_destroy (EV_P)
2666{ 2992{
2667 int i; 2993 int i;
2668 2994
2669#if EV_MULTIPLICITY 2995#if EV_MULTIPLICITY
… …
2710 3036
2711 if (backend_fd >= 0) 3037 if (backend_fd >= 0)
2712 close (backend_fd); 3038 close (backend_fd);
2713 3039
2714#if EV_USE_IOCP 3040#if EV_USE_IOCP
2715 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3041 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2716#endif 3042#endif
2717#if EV_USE_PORT 3043#if EV_USE_PORT
2718 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3044 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2719#endif 3045#endif
2720#if EV_USE_KQUEUE 3046#if EV_USE_KQUEUE
2721 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3047 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3048#endif
3049#if EV_USE_LINUXAIO
3050 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2722#endif 3051#endif
2723#if EV_USE_EPOLL 3052#if EV_USE_EPOLL
2724 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3053 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2725#endif 3054#endif
2726#if EV_USE_POLL 3055#if EV_USE_POLL
2727 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3056 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2728#endif 3057#endif
2729#if EV_USE_SELECT 3058#if EV_USE_SELECT
2730 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3059 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2731#endif 3060#endif
2732 3061
2733 for (i = NUMPRI; i--; ) 3062 for (i = NUMPRI; i--; )
2734 { 3063 {
2735 array_free (pending, [i]); 3064 array_free (pending, [i]);
… …
2777 3106
2778inline_size void 3107inline_size void
2779loop_fork (EV_P) 3108loop_fork (EV_P)
2780{ 3109{
2781#if EV_USE_PORT 3110#if EV_USE_PORT
2782 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3111 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2783#endif 3112#endif
2784#if EV_USE_KQUEUE 3113#if EV_USE_KQUEUE
2785 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3114 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3115#endif
3116#if EV_USE_LINUXAIO
3117 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2786#endif 3118#endif
2787#if EV_USE_EPOLL 3119#if EV_USE_EPOLL
2788 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3120 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2789#endif 3121#endif
2790#if EV_USE_INOTIFY 3122#if EV_USE_INOTIFY
2791 infy_fork (EV_A); 3123 infy_fork (EV_A);
2792#endif 3124#endif
2793 3125
2794#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3126#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2795 if (ev_is_active (&pipe_w)) 3127 if (ev_is_active (&pipe_w) && postfork != 2)
2796 { 3128 {
2797 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3129 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2798 3130
2799 ev_ref (EV_A); 3131 ev_ref (EV_A);
2800 ev_io_stop (EV_A_ &pipe_w); 3132 ev_io_stop (EV_A_ &pipe_w);
… …
2811 postfork = 0; 3143 postfork = 0;
2812} 3144}
2813 3145
2814#if EV_MULTIPLICITY 3146#if EV_MULTIPLICITY
2815 3147
3148ecb_cold
2816struct ev_loop * ecb_cold 3149struct ev_loop *
2817ev_loop_new (unsigned int flags) EV_THROW 3150ev_loop_new (unsigned int flags) EV_NOEXCEPT
2818{ 3151{
2819 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3152 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2820 3153
2821 memset (EV_A, 0, sizeof (struct ev_loop)); 3154 memset (EV_A, 0, sizeof (struct ev_loop));
2822 loop_init (EV_A_ flags); 3155 loop_init (EV_A_ flags);
… …
2829} 3162}
2830 3163
2831#endif /* multiplicity */ 3164#endif /* multiplicity */
2832 3165
2833#if EV_VERIFY 3166#if EV_VERIFY
2834static void noinline ecb_cold 3167noinline ecb_cold
3168static void
2835verify_watcher (EV_P_ W w) 3169verify_watcher (EV_P_ W w)
2836{ 3170{
2837 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3171 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2838 3172
2839 if (w->pending) 3173 if (w->pending)
2840 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3174 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2841} 3175}
2842 3176
2843static void noinline ecb_cold 3177noinline ecb_cold
3178static void
2844verify_heap (EV_P_ ANHE *heap, int N) 3179verify_heap (EV_P_ ANHE *heap, int N)
2845{ 3180{
2846 int i; 3181 int i;
2847 3182
2848 for (i = HEAP0; i < N + HEAP0; ++i) 3183 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2853 3188
2854 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3189 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2855 } 3190 }
2856} 3191}
2857 3192
2858static void noinline ecb_cold 3193noinline ecb_cold
3194static void
2859array_verify (EV_P_ W *ws, int cnt) 3195array_verify (EV_P_ W *ws, int cnt)
2860{ 3196{
2861 while (cnt--) 3197 while (cnt--)
2862 { 3198 {
2863 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3199 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2866} 3202}
2867#endif 3203#endif
2868 3204
2869#if EV_FEATURE_API 3205#if EV_FEATURE_API
2870void ecb_cold 3206void ecb_cold
2871ev_verify (EV_P) EV_THROW 3207ev_verify (EV_P) EV_NOEXCEPT
2872{ 3208{
2873#if EV_VERIFY 3209#if EV_VERIFY
2874 int i; 3210 int i;
2875 WL w, w2; 3211 WL w, w2;
2876 3212
… …
2952#endif 3288#endif
2953} 3289}
2954#endif 3290#endif
2955 3291
2956#if EV_MULTIPLICITY 3292#if EV_MULTIPLICITY
3293ecb_cold
2957struct ev_loop * ecb_cold 3294struct ev_loop *
2958#else 3295#else
2959int 3296int
2960#endif 3297#endif
2961ev_default_loop (unsigned int flags) EV_THROW 3298ev_default_loop (unsigned int flags) EV_NOEXCEPT
2962{ 3299{
2963 if (!ev_default_loop_ptr) 3300 if (!ev_default_loop_ptr)
2964 { 3301 {
2965#if EV_MULTIPLICITY 3302#if EV_MULTIPLICITY
2966 EV_P = ev_default_loop_ptr = &default_loop_struct; 3303 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2985 3322
2986 return ev_default_loop_ptr; 3323 return ev_default_loop_ptr;
2987} 3324}
2988 3325
2989void 3326void
2990ev_loop_fork (EV_P) EV_THROW 3327ev_loop_fork (EV_P) EV_NOEXCEPT
2991{ 3328{
2992 postfork = 1; 3329 postfork = 1;
2993} 3330}
2994 3331
2995/*****************************************************************************/ 3332/*****************************************************************************/
… …
2999{ 3336{
3000 EV_CB_INVOKE ((W)w, revents); 3337 EV_CB_INVOKE ((W)w, revents);
3001} 3338}
3002 3339
3003unsigned int 3340unsigned int
3004ev_pending_count (EV_P) EV_THROW 3341ev_pending_count (EV_P) EV_NOEXCEPT
3005{ 3342{
3006 int pri; 3343 int pri;
3007 unsigned int count = 0; 3344 unsigned int count = 0;
3008 3345
3009 for (pri = NUMPRI; pri--; ) 3346 for (pri = NUMPRI; pri--; )
3010 count += pendingcnt [pri]; 3347 count += pendingcnt [pri];
3011 3348
3012 return count; 3349 return count;
3013} 3350}
3014 3351
3015void noinline 3352noinline
3353void
3016ev_invoke_pending (EV_P) 3354ev_invoke_pending (EV_P)
3017{ 3355{
3018 pendingpri = NUMPRI; 3356 pendingpri = NUMPRI;
3019 3357
3020 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3358 do
3021 { 3359 {
3022 --pendingpri; 3360 --pendingpri;
3023 3361
3362 /* pendingpri possibly gets modified in the inner loop */
3024 while (pendingcnt [pendingpri]) 3363 while (pendingcnt [pendingpri])
3025 { 3364 {
3026 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3365 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3027 3366
3028 p->w->pending = 0; 3367 p->w->pending = 0;
3029 EV_CB_INVOKE (p->w, p->events); 3368 EV_CB_INVOKE (p->w, p->events);
3030 EV_FREQUENT_CHECK; 3369 EV_FREQUENT_CHECK;
3031 } 3370 }
3032 } 3371 }
3372 while (pendingpri);
3033} 3373}
3034 3374
3035#if EV_IDLE_ENABLE 3375#if EV_IDLE_ENABLE
3036/* make idle watchers pending. this handles the "call-idle */ 3376/* make idle watchers pending. this handles the "call-idle */
3037/* only when higher priorities are idle" logic */ 3377/* only when higher priorities are idle" logic */
… …
3095 } 3435 }
3096} 3436}
3097 3437
3098#if EV_PERIODIC_ENABLE 3438#if EV_PERIODIC_ENABLE
3099 3439
3100static void noinline 3440noinline
3441static void
3101periodic_recalc (EV_P_ ev_periodic *w) 3442periodic_recalc (EV_P_ ev_periodic *w)
3102{ 3443{
3103 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3444 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3104 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3445 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3105 3446
… …
3163 } 3504 }
3164} 3505}
3165 3506
3166/* simply recalculate all periodics */ 3507/* simply recalculate all periodics */
3167/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3508/* TODO: maybe ensure that at least one event happens when jumping forward? */
3168static void noinline ecb_cold 3509noinline ecb_cold
3510static void
3169periodics_reschedule (EV_P) 3511periodics_reschedule (EV_P)
3170{ 3512{
3171 int i; 3513 int i;
3172 3514
3173 /* adjust periodics after time jump */ 3515 /* adjust periodics after time jump */
… …
3186 reheap (periodics, periodiccnt); 3528 reheap (periodics, periodiccnt);
3187} 3529}
3188#endif 3530#endif
3189 3531
3190/* adjust all timers by a given offset */ 3532/* adjust all timers by a given offset */
3191static void noinline ecb_cold 3533noinline ecb_cold
3534static void
3192timers_reschedule (EV_P_ ev_tstamp adjust) 3535timers_reschedule (EV_P_ ev_tstamp adjust)
3193{ 3536{
3194 int i; 3537 int i;
3195 3538
3196 for (i = 0; i < timercnt; ++i) 3539 for (i = 0; i < timercnt; ++i)
… …
3443 3786
3444 return activecnt; 3787 return activecnt;
3445} 3788}
3446 3789
3447void 3790void
3448ev_break (EV_P_ int how) EV_THROW 3791ev_break (EV_P_ int how) EV_NOEXCEPT
3449{ 3792{
3450 loop_done = how; 3793 loop_done = how;
3451} 3794}
3452 3795
3453void 3796void
3454ev_ref (EV_P) EV_THROW 3797ev_ref (EV_P) EV_NOEXCEPT
3455{ 3798{
3456 ++activecnt; 3799 ++activecnt;
3457} 3800}
3458 3801
3459void 3802void
3460ev_unref (EV_P) EV_THROW 3803ev_unref (EV_P) EV_NOEXCEPT
3461{ 3804{
3462 --activecnt; 3805 --activecnt;
3463} 3806}
3464 3807
3465void 3808void
3466ev_now_update (EV_P) EV_THROW 3809ev_now_update (EV_P) EV_NOEXCEPT
3467{ 3810{
3468 time_update (EV_A_ 1e100); 3811 time_update (EV_A_ 1e100);
3469} 3812}
3470 3813
3471void 3814void
3472ev_suspend (EV_P) EV_THROW 3815ev_suspend (EV_P) EV_NOEXCEPT
3473{ 3816{
3474 ev_now_update (EV_A); 3817 ev_now_update (EV_A);
3475} 3818}
3476 3819
3477void 3820void
3478ev_resume (EV_P) EV_THROW 3821ev_resume (EV_P) EV_NOEXCEPT
3479{ 3822{
3480 ev_tstamp mn_prev = mn_now; 3823 ev_tstamp mn_prev = mn_now;
3481 3824
3482 ev_now_update (EV_A); 3825 ev_now_update (EV_A);
3483 timers_reschedule (EV_A_ mn_now - mn_prev); 3826 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3522 w->pending = 0; 3865 w->pending = 0;
3523 } 3866 }
3524} 3867}
3525 3868
3526int 3869int
3527ev_clear_pending (EV_P_ void *w) EV_THROW 3870ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3528{ 3871{
3529 W w_ = (W)w; 3872 W w_ = (W)w;
3530 int pending = w_->pending; 3873 int pending = w_->pending;
3531 3874
3532 if (expect_true (pending)) 3875 if (expect_true (pending))
… …
3564 w->active = 0; 3907 w->active = 0;
3565} 3908}
3566 3909
3567/*****************************************************************************/ 3910/*****************************************************************************/
3568 3911
3569void noinline 3912noinline
3913void
3570ev_io_start (EV_P_ ev_io *w) EV_THROW 3914ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3571{ 3915{
3572 int fd = w->fd; 3916 int fd = w->fd;
3573 3917
3574 if (expect_false (ev_is_active (w))) 3918 if (expect_false (ev_is_active (w)))
3575 return; 3919 return;
… …
3578 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3922 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3579 3923
3580 EV_FREQUENT_CHECK; 3924 EV_FREQUENT_CHECK;
3581 3925
3582 ev_start (EV_A_ (W)w, 1); 3926 ev_start (EV_A_ (W)w, 1);
3583 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3927 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3584 wlist_add (&anfds[fd].head, (WL)w); 3928 wlist_add (&anfds[fd].head, (WL)w);
3585 3929
3586 /* common bug, apparently */ 3930 /* common bug, apparently */
3587 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3931 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3588 3932
… …
3590 w->events &= ~EV__IOFDSET; 3934 w->events &= ~EV__IOFDSET;
3591 3935
3592 EV_FREQUENT_CHECK; 3936 EV_FREQUENT_CHECK;
3593} 3937}
3594 3938
3595void noinline 3939noinline
3940void
3596ev_io_stop (EV_P_ ev_io *w) EV_THROW 3941ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3597{ 3942{
3598 clear_pending (EV_A_ (W)w); 3943 clear_pending (EV_A_ (W)w);
3599 if (expect_false (!ev_is_active (w))) 3944 if (expect_false (!ev_is_active (w)))
3600 return; 3945 return;
3601 3946
… …
3609 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3954 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3610 3955
3611 EV_FREQUENT_CHECK; 3956 EV_FREQUENT_CHECK;
3612} 3957}
3613 3958
3614void noinline 3959noinline
3960void
3615ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3961ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3616{ 3962{
3617 if (expect_false (ev_is_active (w))) 3963 if (expect_false (ev_is_active (w)))
3618 return; 3964 return;
3619 3965
3620 ev_at (w) += mn_now; 3966 ev_at (w) += mn_now;
… …
3623 3969
3624 EV_FREQUENT_CHECK; 3970 EV_FREQUENT_CHECK;
3625 3971
3626 ++timercnt; 3972 ++timercnt;
3627 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3973 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3628 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3974 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3629 ANHE_w (timers [ev_active (w)]) = (WT)w; 3975 ANHE_w (timers [ev_active (w)]) = (WT)w;
3630 ANHE_at_cache (timers [ev_active (w)]); 3976 ANHE_at_cache (timers [ev_active (w)]);
3631 upheap (timers, ev_active (w)); 3977 upheap (timers, ev_active (w));
3632 3978
3633 EV_FREQUENT_CHECK; 3979 EV_FREQUENT_CHECK;
3634 3980
3635 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3981 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3636} 3982}
3637 3983
3638void noinline 3984noinline
3985void
3639ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3986ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3640{ 3987{
3641 clear_pending (EV_A_ (W)w); 3988 clear_pending (EV_A_ (W)w);
3642 if (expect_false (!ev_is_active (w))) 3989 if (expect_false (!ev_is_active (w)))
3643 return; 3990 return;
3644 3991
… …
3663 ev_stop (EV_A_ (W)w); 4010 ev_stop (EV_A_ (W)w);
3664 4011
3665 EV_FREQUENT_CHECK; 4012 EV_FREQUENT_CHECK;
3666} 4013}
3667 4014
3668void noinline 4015noinline
4016void
3669ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4017ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3670{ 4018{
3671 EV_FREQUENT_CHECK; 4019 EV_FREQUENT_CHECK;
3672 4020
3673 clear_pending (EV_A_ (W)w); 4021 clear_pending (EV_A_ (W)w);
3674 4022
… …
3691 4039
3692 EV_FREQUENT_CHECK; 4040 EV_FREQUENT_CHECK;
3693} 4041}
3694 4042
3695ev_tstamp 4043ev_tstamp
3696ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4044ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3697{ 4045{
3698 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4046 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3699} 4047}
3700 4048
3701#if EV_PERIODIC_ENABLE 4049#if EV_PERIODIC_ENABLE
3702void noinline 4050noinline
4051void
3703ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4052ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3704{ 4053{
3705 if (expect_false (ev_is_active (w))) 4054 if (expect_false (ev_is_active (w)))
3706 return; 4055 return;
3707 4056
3708 if (w->reschedule_cb) 4057 if (w->reschedule_cb)
… …
3717 4066
3718 EV_FREQUENT_CHECK; 4067 EV_FREQUENT_CHECK;
3719 4068
3720 ++periodiccnt; 4069 ++periodiccnt;
3721 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4070 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3722 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4071 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3723 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4072 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3724 ANHE_at_cache (periodics [ev_active (w)]); 4073 ANHE_at_cache (periodics [ev_active (w)]);
3725 upheap (periodics, ev_active (w)); 4074 upheap (periodics, ev_active (w));
3726 4075
3727 EV_FREQUENT_CHECK; 4076 EV_FREQUENT_CHECK;
3728 4077
3729 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4078 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3730} 4079}
3731 4080
3732void noinline 4081noinline
4082void
3733ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4083ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3734{ 4084{
3735 clear_pending (EV_A_ (W)w); 4085 clear_pending (EV_A_ (W)w);
3736 if (expect_false (!ev_is_active (w))) 4086 if (expect_false (!ev_is_active (w)))
3737 return; 4087 return;
3738 4088
… …
3755 ev_stop (EV_A_ (W)w); 4105 ev_stop (EV_A_ (W)w);
3756 4106
3757 EV_FREQUENT_CHECK; 4107 EV_FREQUENT_CHECK;
3758} 4108}
3759 4109
3760void noinline 4110noinline
4111void
3761ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4112ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3762{ 4113{
3763 /* TODO: use adjustheap and recalculation */ 4114 /* TODO: use adjustheap and recalculation */
3764 ev_periodic_stop (EV_A_ w); 4115 ev_periodic_stop (EV_A_ w);
3765 ev_periodic_start (EV_A_ w); 4116 ev_periodic_start (EV_A_ w);
3766} 4117}
… …
3770# define SA_RESTART 0 4121# define SA_RESTART 0
3771#endif 4122#endif
3772 4123
3773#if EV_SIGNAL_ENABLE 4124#if EV_SIGNAL_ENABLE
3774 4125
3775void noinline 4126noinline
4127void
3776ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4128ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3777{ 4129{
3778 if (expect_false (ev_is_active (w))) 4130 if (expect_false (ev_is_active (w)))
3779 return; 4131 return;
3780 4132
3781 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4133 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3852 } 4204 }
3853 4205
3854 EV_FREQUENT_CHECK; 4206 EV_FREQUENT_CHECK;
3855} 4207}
3856 4208
3857void noinline 4209noinline
4210void
3858ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4211ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3859{ 4212{
3860 clear_pending (EV_A_ (W)w); 4213 clear_pending (EV_A_ (W)w);
3861 if (expect_false (!ev_is_active (w))) 4214 if (expect_false (!ev_is_active (w)))
3862 return; 4215 return;
3863 4216
… …
3894#endif 4247#endif
3895 4248
3896#if EV_CHILD_ENABLE 4249#if EV_CHILD_ENABLE
3897 4250
3898void 4251void
3899ev_child_start (EV_P_ ev_child *w) EV_THROW 4252ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3900{ 4253{
3901#if EV_MULTIPLICITY 4254#if EV_MULTIPLICITY
3902 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4255 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3903#endif 4256#endif
3904 if (expect_false (ev_is_active (w))) 4257 if (expect_false (ev_is_active (w)))
… …
3911 4264
3912 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
3913} 4266}
3914 4267
3915void 4268void
3916ev_child_stop (EV_P_ ev_child *w) EV_THROW 4269ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3917{ 4270{
3918 clear_pending (EV_A_ (W)w); 4271 clear_pending (EV_A_ (W)w);
3919 if (expect_false (!ev_is_active (w))) 4272 if (expect_false (!ev_is_active (w)))
3920 return; 4273 return;
3921 4274
… …
3938 4291
3939#define DEF_STAT_INTERVAL 5.0074891 4292#define DEF_STAT_INTERVAL 5.0074891
3940#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4293#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3941#define MIN_STAT_INTERVAL 0.1074891 4294#define MIN_STAT_INTERVAL 0.1074891
3942 4295
3943static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4296noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3944 4297
3945#if EV_USE_INOTIFY 4298#if EV_USE_INOTIFY
3946 4299
3947/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4300/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3948# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4301# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3949 4302
3950static void noinline 4303noinline
4304static void
3951infy_add (EV_P_ ev_stat *w) 4305infy_add (EV_P_ ev_stat *w)
3952{ 4306{
3953 w->wd = inotify_add_watch (fs_fd, w->path, 4307 w->wd = inotify_add_watch (fs_fd, w->path,
3954 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4308 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3955 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4309 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4019 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4373 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4020 ev_timer_again (EV_A_ &w->timer); 4374 ev_timer_again (EV_A_ &w->timer);
4021 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4375 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4022} 4376}
4023 4377
4024static void noinline 4378noinline
4379static void
4025infy_del (EV_P_ ev_stat *w) 4380infy_del (EV_P_ ev_stat *w)
4026{ 4381{
4027 int slot; 4382 int slot;
4028 int wd = w->wd; 4383 int wd = w->wd;
4029 4384
… …
4036 4391
4037 /* remove this watcher, if others are watching it, they will rearm */ 4392 /* remove this watcher, if others are watching it, they will rearm */
4038 inotify_rm_watch (fs_fd, wd); 4393 inotify_rm_watch (fs_fd, wd);
4039} 4394}
4040 4395
4041static void noinline 4396noinline
4397static void
4042infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4398infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4043{ 4399{
4044 if (slot < 0) 4400 if (slot < 0)
4045 /* overflow, need to check for all hash slots */ 4401 /* overflow, need to check for all hash slots */
4046 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4402 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4082 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4438 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4083 ofs += sizeof (struct inotify_event) + ev->len; 4439 ofs += sizeof (struct inotify_event) + ev->len;
4084 } 4440 }
4085} 4441}
4086 4442
4087inline_size void ecb_cold 4443inline_size ecb_cold
4444void
4088ev_check_2625 (EV_P) 4445ev_check_2625 (EV_P)
4089{ 4446{
4090 /* kernels < 2.6.25 are borked 4447 /* kernels < 2.6.25 are borked
4091 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4448 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4092 */ 4449 */
… …
4182#else 4539#else
4183# define EV_LSTAT(p,b) lstat (p, b) 4540# define EV_LSTAT(p,b) lstat (p, b)
4184#endif 4541#endif
4185 4542
4186void 4543void
4187ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4544ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4188{ 4545{
4189 if (lstat (w->path, &w->attr) < 0) 4546 if (lstat (w->path, &w->attr) < 0)
4190 w->attr.st_nlink = 0; 4547 w->attr.st_nlink = 0;
4191 else if (!w->attr.st_nlink) 4548 else if (!w->attr.st_nlink)
4192 w->attr.st_nlink = 1; 4549 w->attr.st_nlink = 1;
4193} 4550}
4194 4551
4195static void noinline 4552noinline
4553static void
4196stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4554stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4197{ 4555{
4198 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4556 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4199 4557
4200 ev_statdata prev = w->attr; 4558 ev_statdata prev = w->attr;
… …
4231 ev_feed_event (EV_A_ w, EV_STAT); 4589 ev_feed_event (EV_A_ w, EV_STAT);
4232 } 4590 }
4233} 4591}
4234 4592
4235void 4593void
4236ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4594ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4237{ 4595{
4238 if (expect_false (ev_is_active (w))) 4596 if (expect_false (ev_is_active (w)))
4239 return; 4597 return;
4240 4598
4241 ev_stat_stat (EV_A_ w); 4599 ev_stat_stat (EV_A_ w);
… …
4262 4620
4263 EV_FREQUENT_CHECK; 4621 EV_FREQUENT_CHECK;
4264} 4622}
4265 4623
4266void 4624void
4267ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4625ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4268{ 4626{
4269 clear_pending (EV_A_ (W)w); 4627 clear_pending (EV_A_ (W)w);
4270 if (expect_false (!ev_is_active (w))) 4628 if (expect_false (!ev_is_active (w)))
4271 return; 4629 return;
4272 4630
… …
4288} 4646}
4289#endif 4647#endif
4290 4648
4291#if EV_IDLE_ENABLE 4649#if EV_IDLE_ENABLE
4292void 4650void
4293ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4651ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4294{ 4652{
4295 if (expect_false (ev_is_active (w))) 4653 if (expect_false (ev_is_active (w)))
4296 return; 4654 return;
4297 4655
4298 pri_adjust (EV_A_ (W)w); 4656 pri_adjust (EV_A_ (W)w);
… …
4303 int active = ++idlecnt [ABSPRI (w)]; 4661 int active = ++idlecnt [ABSPRI (w)];
4304 4662
4305 ++idleall; 4663 ++idleall;
4306 ev_start (EV_A_ (W)w, active); 4664 ev_start (EV_A_ (W)w, active);
4307 4665
4308 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4666 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4309 idles [ABSPRI (w)][active - 1] = w; 4667 idles [ABSPRI (w)][active - 1] = w;
4310 } 4668 }
4311 4669
4312 EV_FREQUENT_CHECK; 4670 EV_FREQUENT_CHECK;
4313} 4671}
4314 4672
4315void 4673void
4316ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4674ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4317{ 4675{
4318 clear_pending (EV_A_ (W)w); 4676 clear_pending (EV_A_ (W)w);
4319 if (expect_false (!ev_is_active (w))) 4677 if (expect_false (!ev_is_active (w)))
4320 return; 4678 return;
4321 4679
… …
4335} 4693}
4336#endif 4694#endif
4337 4695
4338#if EV_PREPARE_ENABLE 4696#if EV_PREPARE_ENABLE
4339void 4697void
4340ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4698ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4341{ 4699{
4342 if (expect_false (ev_is_active (w))) 4700 if (expect_false (ev_is_active (w)))
4343 return; 4701 return;
4344 4702
4345 EV_FREQUENT_CHECK; 4703 EV_FREQUENT_CHECK;
4346 4704
4347 ev_start (EV_A_ (W)w, ++preparecnt); 4705 ev_start (EV_A_ (W)w, ++preparecnt);
4348 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4706 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4349 prepares [preparecnt - 1] = w; 4707 prepares [preparecnt - 1] = w;
4350 4708
4351 EV_FREQUENT_CHECK; 4709 EV_FREQUENT_CHECK;
4352} 4710}
4353 4711
4354void 4712void
4355ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4713ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4356{ 4714{
4357 clear_pending (EV_A_ (W)w); 4715 clear_pending (EV_A_ (W)w);
4358 if (expect_false (!ev_is_active (w))) 4716 if (expect_false (!ev_is_active (w)))
4359 return; 4717 return;
4360 4718
… …
4373} 4731}
4374#endif 4732#endif
4375 4733
4376#if EV_CHECK_ENABLE 4734#if EV_CHECK_ENABLE
4377void 4735void
4378ev_check_start (EV_P_ ev_check *w) EV_THROW 4736ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4379{ 4737{
4380 if (expect_false (ev_is_active (w))) 4738 if (expect_false (ev_is_active (w)))
4381 return; 4739 return;
4382 4740
4383 EV_FREQUENT_CHECK; 4741 EV_FREQUENT_CHECK;
4384 4742
4385 ev_start (EV_A_ (W)w, ++checkcnt); 4743 ev_start (EV_A_ (W)w, ++checkcnt);
4386 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4744 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4387 checks [checkcnt - 1] = w; 4745 checks [checkcnt - 1] = w;
4388 4746
4389 EV_FREQUENT_CHECK; 4747 EV_FREQUENT_CHECK;
4390} 4748}
4391 4749
4392void 4750void
4393ev_check_stop (EV_P_ ev_check *w) EV_THROW 4751ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4394{ 4752{
4395 clear_pending (EV_A_ (W)w); 4753 clear_pending (EV_A_ (W)w);
4396 if (expect_false (!ev_is_active (w))) 4754 if (expect_false (!ev_is_active (w)))
4397 return; 4755 return;
4398 4756
… …
4410 EV_FREQUENT_CHECK; 4768 EV_FREQUENT_CHECK;
4411} 4769}
4412#endif 4770#endif
4413 4771
4414#if EV_EMBED_ENABLE 4772#if EV_EMBED_ENABLE
4415void noinline 4773noinline
4774void
4416ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4775ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4417{ 4776{
4418 ev_run (w->other, EVRUN_NOWAIT); 4777 ev_run (w->other, EVRUN_NOWAIT);
4419} 4778}
4420 4779
4421static void 4780static void
… …
4469 ev_idle_stop (EV_A_ idle); 4828 ev_idle_stop (EV_A_ idle);
4470} 4829}
4471#endif 4830#endif
4472 4831
4473void 4832void
4474ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4833ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4475{ 4834{
4476 if (expect_false (ev_is_active (w))) 4835 if (expect_false (ev_is_active (w)))
4477 return; 4836 return;
4478 4837
4479 { 4838 {
… …
4500 4859
4501 EV_FREQUENT_CHECK; 4860 EV_FREQUENT_CHECK;
4502} 4861}
4503 4862
4504void 4863void
4505ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4864ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4506{ 4865{
4507 clear_pending (EV_A_ (W)w); 4866 clear_pending (EV_A_ (W)w);
4508 if (expect_false (!ev_is_active (w))) 4867 if (expect_false (!ev_is_active (w)))
4509 return; 4868 return;
4510 4869
… …
4520} 4879}
4521#endif 4880#endif
4522 4881
4523#if EV_FORK_ENABLE 4882#if EV_FORK_ENABLE
4524void 4883void
4525ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4884ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4526{ 4885{
4527 if (expect_false (ev_is_active (w))) 4886 if (expect_false (ev_is_active (w)))
4528 return; 4887 return;
4529 4888
4530 EV_FREQUENT_CHECK; 4889 EV_FREQUENT_CHECK;
4531 4890
4532 ev_start (EV_A_ (W)w, ++forkcnt); 4891 ev_start (EV_A_ (W)w, ++forkcnt);
4533 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4892 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4534 forks [forkcnt - 1] = w; 4893 forks [forkcnt - 1] = w;
4535 4894
4536 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
4537} 4896}
4538 4897
4539void 4898void
4540ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4899ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4541{ 4900{
4542 clear_pending (EV_A_ (W)w); 4901 clear_pending (EV_A_ (W)w);
4543 if (expect_false (!ev_is_active (w))) 4902 if (expect_false (!ev_is_active (w)))
4544 return; 4903 return;
4545 4904
… …
4558} 4917}
4559#endif 4918#endif
4560 4919
4561#if EV_CLEANUP_ENABLE 4920#if EV_CLEANUP_ENABLE
4562void 4921void
4563ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4922ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4564{ 4923{
4565 if (expect_false (ev_is_active (w))) 4924 if (expect_false (ev_is_active (w)))
4566 return; 4925 return;
4567 4926
4568 EV_FREQUENT_CHECK; 4927 EV_FREQUENT_CHECK;
4569 4928
4570 ev_start (EV_A_ (W)w, ++cleanupcnt); 4929 ev_start (EV_A_ (W)w, ++cleanupcnt);
4571 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4930 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4572 cleanups [cleanupcnt - 1] = w; 4931 cleanups [cleanupcnt - 1] = w;
4573 4932
4574 /* cleanup watchers should never keep a refcount on the loop */ 4933 /* cleanup watchers should never keep a refcount on the loop */
4575 ev_unref (EV_A); 4934 ev_unref (EV_A);
4576 EV_FREQUENT_CHECK; 4935 EV_FREQUENT_CHECK;
4577} 4936}
4578 4937
4579void 4938void
4580ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4939ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4581{ 4940{
4582 clear_pending (EV_A_ (W)w); 4941 clear_pending (EV_A_ (W)w);
4583 if (expect_false (!ev_is_active (w))) 4942 if (expect_false (!ev_is_active (w)))
4584 return; 4943 return;
4585 4944
… …
4599} 4958}
4600#endif 4959#endif
4601 4960
4602#if EV_ASYNC_ENABLE 4961#if EV_ASYNC_ENABLE
4603void 4962void
4604ev_async_start (EV_P_ ev_async *w) EV_THROW 4963ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4605{ 4964{
4606 if (expect_false (ev_is_active (w))) 4965 if (expect_false (ev_is_active (w)))
4607 return; 4966 return;
4608 4967
4609 w->sent = 0; 4968 w->sent = 0;
… …
4611 evpipe_init (EV_A); 4970 evpipe_init (EV_A);
4612 4971
4613 EV_FREQUENT_CHECK; 4972 EV_FREQUENT_CHECK;
4614 4973
4615 ev_start (EV_A_ (W)w, ++asynccnt); 4974 ev_start (EV_A_ (W)w, ++asynccnt);
4616 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4975 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4617 asyncs [asynccnt - 1] = w; 4976 asyncs [asynccnt - 1] = w;
4618 4977
4619 EV_FREQUENT_CHECK; 4978 EV_FREQUENT_CHECK;
4620} 4979}
4621 4980
4622void 4981void
4623ev_async_stop (EV_P_ ev_async *w) EV_THROW 4982ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4624{ 4983{
4625 clear_pending (EV_A_ (W)w); 4984 clear_pending (EV_A_ (W)w);
4626 if (expect_false (!ev_is_active (w))) 4985 if (expect_false (!ev_is_active (w)))
4627 return; 4986 return;
4628 4987
… …
4639 4998
4640 EV_FREQUENT_CHECK; 4999 EV_FREQUENT_CHECK;
4641} 5000}
4642 5001
4643void 5002void
4644ev_async_send (EV_P_ ev_async *w) EV_THROW 5003ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4645{ 5004{
4646 w->sent = 1; 5005 w->sent = 1;
4647 evpipe_write (EV_A_ &async_pending); 5006 evpipe_write (EV_A_ &async_pending);
4648} 5007}
4649#endif 5008#endif
… …
4686 5045
4687 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5046 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4688} 5047}
4689 5048
4690void 5049void
4691ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5050ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4692{ 5051{
4693 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5052 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4694
4695 if (expect_false (!once))
4696 {
4697 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4698 return;
4699 }
4700 5053
4701 once->cb = cb; 5054 once->cb = cb;
4702 once->arg = arg; 5055 once->arg = arg;
4703 5056
4704 ev_init (&once->io, once_cb_io); 5057 ev_init (&once->io, once_cb_io);
… …
4717} 5070}
4718 5071
4719/*****************************************************************************/ 5072/*****************************************************************************/
4720 5073
4721#if EV_WALK_ENABLE 5074#if EV_WALK_ENABLE
4722void ecb_cold 5075ecb_cold
5076void
4723ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5077ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4724{ 5078{
4725 int i, j; 5079 int i, j;
4726 ev_watcher_list *wl, *wn; 5080 ev_watcher_list *wl, *wn;
4727 5081
4728 if (types & (EV_IO | EV_EMBED)) 5082 if (types & (EV_IO | EV_EMBED))

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