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Comparing libev/ev.c (file contents):
Revision 1.429 by root, Tue May 8 15:50:49 2012 UTC vs.
Revision 1.493 by root, Sun Jun 23 02:02:24 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
… …
201# include <sys/wait.h> 220# include <sys/wait.h>
202# include <unistd.h> 221# include <unistd.h>
203#else 222#else
204# include <io.h> 223# include <io.h>
205# define WIN32_LEAN_AND_MEAN 224# define WIN32_LEAN_AND_MEAN
225# include <winsock2.h>
206# include <windows.h> 226# include <windows.h>
207# include <winsock2.h>
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
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 380# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 381#endif
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
385#endif
386
387#ifdef __ANDROID__
388/* supposedly, android doesn't typedef fd_mask */
389# undef EV_USE_SELECT
390# define EV_USE_SELECT 0
391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
392# undef EV_USE_CLOCK_SYSCALL
393# define EV_USE_CLOCK_SYSCALL 0
394#endif
395
396/* aix's poll.h seems to cause lots of trouble */
397#ifdef _AIX
398/* AIX has a completely broken poll.h header */
399# undef EV_USE_POLL
400# define EV_USE_POLL 0
360#endif 401#endif
361 402
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 403/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */ 404/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 405#if EV_USE_CLOCK_SYSCALL
… …
373# endif 414# endif
374#endif 415#endif
375 416
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 417/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377 418
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
384#ifndef CLOCK_MONOTONIC 419#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 420# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 421# define EV_USE_MONOTONIC 0
387#endif 422#endif
388 423
… …
398 433
399#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
400/* hp-ux has it in sys/time.h, which we unconditionally include above */ 435/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux 436# if !defined _WIN32 && !defined __hpux
402# include <sys/select.h> 437# include <sys/select.h>
438# endif
439#endif
440
441#if EV_USE_LINUXAIO
442# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL
444# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0
403# endif 446# endif
404#endif 447#endif
405 448
406#if EV_USE_INOTIFY 449#if EV_USE_INOTIFY
407# include <sys/statfs.h> 450# include <sys/statfs.h>
… …
409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 452/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
410# ifndef IN_DONT_FOLLOW 453# ifndef IN_DONT_FOLLOW
411# undef EV_USE_INOTIFY 454# undef EV_USE_INOTIFY
412# define EV_USE_INOTIFY 0 455# define EV_USE_INOTIFY 0
413# endif 456# endif
414#endif
415
416#if EV_SELECT_IS_WINSOCKET
417# include <winsock.h>
418#endif 457#endif
419 458
420#if EV_USE_EVENTFD 459#if EV_USE_EVENTFD
421/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 460/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
422# include <stdint.h> 461# include <stdint.h>
… …
479/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
480/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
481/* 520/*
482 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
483 * 522 *
484 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
485 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
486 * All rights reserved. 525 * All rights reserved.
487 * 526 *
488 * Redistribution and use in source and binary forms, with or without modifica- 527 * Redistribution and use in source and binary forms, with or without modifica-
489 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
503 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 542 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
504 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
505 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
506 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 545 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
507 * OF THE POSSIBILITY OF SUCH DAMAGE. 546 * OF THE POSSIBILITY OF SUCH DAMAGE.
547 *
548 * Alternatively, the contents of this file may be used under the terms of
549 * the GNU General Public License ("GPL") version 2 or any later version,
550 * in which case the provisions of the GPL are applicable instead of
551 * the above. If you wish to allow the use of your version of this file
552 * only under the terms of the GPL and not to allow others to use your
553 * version of this file under the BSD license, indicate your decision
554 * by deleting the provisions above and replace them with the notice
555 * and other provisions required by the GPL. If you do not delete the
556 * provisions above, a recipient may use your version of this file under
557 * either the BSD or the GPL.
508 */ 558 */
509 559
510#ifndef ECB_H 560#ifndef ECB_H
511#define ECB_H 561#define ECB_H
562
563/* 16 bits major, 16 bits minor */
564#define ECB_VERSION 0x00010005
512 565
513#ifdef _WIN32 566#ifdef _WIN32
514 typedef signed char int8_t; 567 typedef signed char int8_t;
515 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
516 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
522 typedef unsigned long long uint64_t; 575 typedef unsigned long long uint64_t;
523 #else /* _MSC_VER || __BORLANDC__ */ 576 #else /* _MSC_VER || __BORLANDC__ */
524 typedef signed __int64 int64_t; 577 typedef signed __int64 int64_t;
525 typedef unsigned __int64 uint64_t; 578 typedef unsigned __int64 uint64_t;
526 #endif 579 #endif
580 #ifdef _WIN64
581 #define ECB_PTRSIZE 8
582 typedef uint64_t uintptr_t;
583 typedef int64_t intptr_t;
584 #else
585 #define ECB_PTRSIZE 4
586 typedef uint32_t uintptr_t;
587 typedef int32_t intptr_t;
588 #endif
527#else 589#else
528 #include <inttypes.h> 590 #include <inttypes.h>
591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
592 #define ECB_PTRSIZE 8
593 #else
594 #define ECB_PTRSIZE 4
595 #endif
596#endif
597
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
600
601/* work around x32 idiocy by defining proper macros */
602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
603 #if _ILP32
604 #define ECB_AMD64_X32 1
605 #else
606 #define ECB_AMD64 1
607 #endif
529#endif 608#endif
530 609
531/* many compilers define _GNUC_ to some versions but then only implement 610/* many compilers define _GNUC_ to some versions but then only implement
532 * what their idiot authors think are the "more important" extensions, 611 * what their idiot authors think are the "more important" extensions,
533 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
534 * or so. 613 * or so.
535 * we try to detect these and simply assume they are not gcc - if they have 614 * we try to detect these and simply assume they are not gcc - if they have
536 * an issue with that they should have done it right in the first place. 615 * an issue with that they should have done it right in the first place.
537 */ 616 */
538#ifndef ECB_GCC_VERSION
539 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 617#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
540 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
541 #else 619#else
542 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 620 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
543 #endif 621#endif
622
623#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
624
625#if __clang__ && defined __has_builtin
626 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
627#else
628 #define ECB_CLANG_BUILTIN(x) 0
629#endif
630
631#if __clang__ && defined __has_extension
632 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
633#else
634 #define ECB_CLANG_EXTENSION(x) 0
635#endif
636
637#define ECB_CPP (__cplusplus+0)
638#define ECB_CPP11 (__cplusplus >= 201103L)
639#define ECB_CPP14 (__cplusplus >= 201402L)
640#define ECB_CPP17 (__cplusplus >= 201703L)
641
642#if ECB_CPP
643 #define ECB_C 0
644 #define ECB_STDC_VERSION 0
645#else
646 #define ECB_C 1
647 #define ECB_STDC_VERSION __STDC_VERSION__
648#endif
649
650#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
651#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
652#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
653
654#if ECB_CPP
655 #define ECB_EXTERN_C extern "C"
656 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
657 #define ECB_EXTERN_C_END }
658#else
659 #define ECB_EXTERN_C extern
660 #define ECB_EXTERN_C_BEG
661 #define ECB_EXTERN_C_END
544#endif 662#endif
545 663
546/*****************************************************************************/ 664/*****************************************************************************/
547 665
548/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 666/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
549/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 667/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
550 668
551#if ECB_NO_THREADS 669#if ECB_NO_THREADS
552# define ECB_NO_SMP 1 670 #define ECB_NO_SMP 1
553#endif 671#endif
554 672
555#if ECB_NO_THREADS || ECB_NO_SMP 673#if ECB_NO_SMP
556 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
675#endif
676
677/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
678#if __xlC__ && ECB_CPP
679 #include <builtins.h>
680#endif
681
682#if 1400 <= _MSC_VER
683 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
557#endif 684#endif
558 685
559#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
560 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 687 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
561 #if __i386 || __i386__ 688 #if __i386 || __i386__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 689 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 690 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 691 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
565 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 692 #elif ECB_GCC_AMD64
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 693 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
567 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 694 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
568 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 695 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
569 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 696 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
570 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 697 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
698 #elif defined __ARM_ARCH_2__ \
699 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
700 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
701 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
702 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
703 || defined __ARM_ARCH_5TEJ__
704 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
571 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 705 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
572 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 706 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
707 || defined __ARM_ARCH_6T2__
573 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 708 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
574 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 709 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
575 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 710 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
576 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 711 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
577 #elif __sparc || __sparc__ 712 #elif __aarch64__
713 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
714 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 715 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 716 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
580 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 717 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
581 #elif defined __s390__ || defined __s390x__ 718 #elif defined __s390__ || defined __s390x__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 719 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
583 #elif defined __mips__ 720 #elif defined __mips__
721 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
722 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
584 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 723 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
585 #elif defined __alpha__ 724 #elif defined __alpha__
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 725 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
726 #elif defined __hppa__
727 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
728 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
729 #elif defined __ia64__
730 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
731 #elif defined __m68k__
732 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
733 #elif defined __m88k__
734 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
735 #elif defined __sh__
736 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
587 #endif 737 #endif
588 #endif 738 #endif
589#endif 739#endif
590 740
591#ifndef ECB_MEMORY_FENCE 741#ifndef ECB_MEMORY_FENCE
742 #if ECB_GCC_VERSION(4,7)
743 /* see comment below (stdatomic.h) about the C11 memory model. */
744 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
745 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
746 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
747
748 #elif ECB_CLANG_EXTENSION(c_atomic)
749 /* see comment below (stdatomic.h) about the C11 memory model. */
750 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
751 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
752 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
753
592 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 754 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
593 #define ECB_MEMORY_FENCE __sync_synchronize () 755 #define ECB_MEMORY_FENCE __sync_synchronize ()
594 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 756 #elif _MSC_VER >= 1500 /* VC++ 2008 */
595 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 757 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
758 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
759 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
760 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
761 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
596 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 762 #elif _MSC_VER >= 1400 /* VC++ 2005 */
597 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 763 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
598 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 764 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
599 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 765 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
600 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 766 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
610 #define ECB_MEMORY_FENCE __sync () 776 #define ECB_MEMORY_FENCE __sync ()
611 #endif 777 #endif
612#endif 778#endif
613 779
614#ifndef ECB_MEMORY_FENCE 780#ifndef ECB_MEMORY_FENCE
781 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
782 /* we assume that these memory fences work on all variables/all memory accesses, */
783 /* not just C11 atomics and atomic accesses */
784 #include <stdatomic.h>
785 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
786 /* any fence other than seq_cst, which isn't very efficient for us. */
787 /* Why that is, we don't know - either the C11 memory model is quite useless */
788 /* for most usages, or gcc and clang have a bug */
789 /* I *currently* lean towards the latter, and inefficiently implement */
790 /* all three of ecb's fences as a seq_cst fence */
791 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
792 /* for all __atomic_thread_fence's except seq_cst */
793 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
794 #endif
795#endif
796
797#ifndef ECB_MEMORY_FENCE
615 #if !ECB_AVOID_PTHREADS 798 #if !ECB_AVOID_PTHREADS
616 /* 799 /*
617 * if you get undefined symbol references to pthread_mutex_lock, 800 * if you get undefined symbol references to pthread_mutex_lock,
618 * or failure to find pthread.h, then you should implement 801 * or failure to find pthread.h, then you should implement
619 * the ECB_MEMORY_FENCE operations for your cpu/compiler 802 * the ECB_MEMORY_FENCE operations for your cpu/compiler
… …
637 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 820 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
638#endif 821#endif
639 822
640/*****************************************************************************/ 823/*****************************************************************************/
641 824
642#define ECB_C99 (__STDC_VERSION__ >= 199901L) 825#if ECB_CPP
643
644#if __cplusplus
645 #define ecb_inline static inline 826 #define ecb_inline static inline
646#elif ECB_GCC_VERSION(2,5) 827#elif ECB_GCC_VERSION(2,5)
647 #define ecb_inline static __inline__ 828 #define ecb_inline static __inline__
648#elif ECB_C99 829#elif ECB_C99
649 #define ecb_inline static inline 830 #define ecb_inline static inline
… …
663 844
664#define ECB_CONCAT_(a, b) a ## b 845#define ECB_CONCAT_(a, b) a ## b
665#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 846#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
666#define ECB_STRINGIFY_(a) # a 847#define ECB_STRINGIFY_(a) # a
667#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 848#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
849#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
668 850
669#define ecb_function_ ecb_inline 851#define ecb_function_ ecb_inline
670 852
671#if ECB_GCC_VERSION(3,1) 853#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
672 #define ecb_attribute(attrlist) __attribute__(attrlist) 854 #define ecb_attribute(attrlist) __attribute__ (attrlist)
855#else
856 #define ecb_attribute(attrlist)
857#endif
858
859#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
673 #define ecb_is_constant(expr) __builtin_constant_p (expr) 860 #define ecb_is_constant(expr) __builtin_constant_p (expr)
861#else
862 /* possible C11 impl for integral types
863 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
864 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
865
866 #define ecb_is_constant(expr) 0
867#endif
868
869#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
674 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 870 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
871#else
872 #define ecb_expect(expr,value) (expr)
873#endif
874
875#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
675 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 876 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
676#else 877#else
677 #define ecb_attribute(attrlist)
678 #define ecb_is_constant(expr) 0
679 #define ecb_expect(expr,value) (expr)
680 #define ecb_prefetch(addr,rw,locality) 878 #define ecb_prefetch(addr,rw,locality)
681#endif 879#endif
682 880
683/* no emulation for ecb_decltype */ 881/* no emulation for ecb_decltype */
684#if ECB_GCC_VERSION(4,5) 882#if ECB_CPP11
883 // older implementations might have problems with decltype(x)::type, work around it
884 template<class T> struct ecb_decltype_t { typedef T type; };
685 #define ecb_decltype(x) __decltype(x) 885 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
686#elif ECB_GCC_VERSION(3,0) 886#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
687 #define ecb_decltype(x) __typeof(x) 887 #define ecb_decltype(x) __typeof__ (x)
688#endif 888#endif
689 889
890#if _MSC_VER >= 1300
891 #define ecb_deprecated __declspec (deprecated)
892#else
893 #define ecb_deprecated ecb_attribute ((__deprecated__))
894#endif
895
896#if _MSC_VER >= 1500
897 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
898#elif ECB_GCC_VERSION(4,5)
899 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
900#else
901 #define ecb_deprecated_message(msg) ecb_deprecated
902#endif
903
904#if _MSC_VER >= 1400
905 #define ecb_noinline __declspec (noinline)
906#else
690#define ecb_noinline ecb_attribute ((__noinline__)) 907 #define ecb_noinline ecb_attribute ((__noinline__))
691#define ecb_noreturn ecb_attribute ((__noreturn__)) 908#endif
909
692#define ecb_unused ecb_attribute ((__unused__)) 910#define ecb_unused ecb_attribute ((__unused__))
693#define ecb_const ecb_attribute ((__const__)) 911#define ecb_const ecb_attribute ((__const__))
694#define ecb_pure ecb_attribute ((__pure__)) 912#define ecb_pure ecb_attribute ((__pure__))
913
914#if ECB_C11 || __IBMC_NORETURN
915 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
916 #define ecb_noreturn _Noreturn
917#elif ECB_CPP11
918 #define ecb_noreturn [[noreturn]]
919#elif _MSC_VER >= 1200
920 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
921 #define ecb_noreturn __declspec (noreturn)
922#else
923 #define ecb_noreturn ecb_attribute ((__noreturn__))
924#endif
695 925
696#if ECB_GCC_VERSION(4,3) 926#if ECB_GCC_VERSION(4,3)
697 #define ecb_artificial ecb_attribute ((__artificial__)) 927 #define ecb_artificial ecb_attribute ((__artificial__))
698 #define ecb_hot ecb_attribute ((__hot__)) 928 #define ecb_hot ecb_attribute ((__hot__))
699 #define ecb_cold ecb_attribute ((__cold__)) 929 #define ecb_cold ecb_attribute ((__cold__))
… …
711/* for compatibility to the rest of the world */ 941/* for compatibility to the rest of the world */
712#define ecb_likely(expr) ecb_expect_true (expr) 942#define ecb_likely(expr) ecb_expect_true (expr)
713#define ecb_unlikely(expr) ecb_expect_false (expr) 943#define ecb_unlikely(expr) ecb_expect_false (expr)
714 944
715/* count trailing zero bits and count # of one bits */ 945/* count trailing zero bits and count # of one bits */
716#if ECB_GCC_VERSION(3,4) 946#if ECB_GCC_VERSION(3,4) \
947 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
948 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
949 && ECB_CLANG_BUILTIN(__builtin_popcount))
717 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 950 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
718 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 951 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
719 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 952 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
720 #define ecb_ctz32(x) __builtin_ctz (x) 953 #define ecb_ctz32(x) __builtin_ctz (x)
721 #define ecb_ctz64(x) __builtin_ctzll (x) 954 #define ecb_ctz64(x) __builtin_ctzll (x)
722 #define ecb_popcount32(x) __builtin_popcount (x) 955 #define ecb_popcount32(x) __builtin_popcount (x)
723 /* no popcountll */ 956 /* no popcountll */
724#else 957#else
725 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 958 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
726 ecb_function_ int 959 ecb_function_ ecb_const int
727 ecb_ctz32 (uint32_t x) 960 ecb_ctz32 (uint32_t x)
728 { 961 {
962#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
963 unsigned long r;
964 _BitScanForward (&r, x);
965 return (int)r;
966#else
729 int r = 0; 967 int r = 0;
730 968
731 x &= ~x + 1; /* this isolates the lowest bit */ 969 x &= ~x + 1; /* this isolates the lowest bit */
732 970
733#if ECB_branchless_on_i386 971#if ECB_branchless_on_i386
… …
743 if (x & 0xff00ff00) r += 8; 981 if (x & 0xff00ff00) r += 8;
744 if (x & 0xffff0000) r += 16; 982 if (x & 0xffff0000) r += 16;
745#endif 983#endif
746 984
747 return r; 985 return r;
986#endif
748 } 987 }
749 988
750 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 989 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
751 ecb_function_ int 990 ecb_function_ ecb_const int
752 ecb_ctz64 (uint64_t x) 991 ecb_ctz64 (uint64_t x)
753 { 992 {
993#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
994 unsigned long r;
995 _BitScanForward64 (&r, x);
996 return (int)r;
997#else
754 int shift = x & 0xffffffffU ? 0 : 32; 998 int shift = x & 0xffffffff ? 0 : 32;
755 return ecb_ctz32 (x >> shift) + shift; 999 return ecb_ctz32 (x >> shift) + shift;
1000#endif
756 } 1001 }
757 1002
758 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1003 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
759 ecb_function_ int 1004 ecb_function_ ecb_const int
760 ecb_popcount32 (uint32_t x) 1005 ecb_popcount32 (uint32_t x)
761 { 1006 {
762 x -= (x >> 1) & 0x55555555; 1007 x -= (x >> 1) & 0x55555555;
763 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1008 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
764 x = ((x >> 4) + x) & 0x0f0f0f0f; 1009 x = ((x >> 4) + x) & 0x0f0f0f0f;
765 x *= 0x01010101; 1010 x *= 0x01010101;
766 1011
767 return x >> 24; 1012 return x >> 24;
768 } 1013 }
769 1014
770 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1015 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
771 ecb_function_ int ecb_ld32 (uint32_t x) 1016 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
772 { 1017 {
1018#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1019 unsigned long r;
1020 _BitScanReverse (&r, x);
1021 return (int)r;
1022#else
773 int r = 0; 1023 int r = 0;
774 1024
775 if (x >> 16) { x >>= 16; r += 16; } 1025 if (x >> 16) { x >>= 16; r += 16; }
776 if (x >> 8) { x >>= 8; r += 8; } 1026 if (x >> 8) { x >>= 8; r += 8; }
777 if (x >> 4) { x >>= 4; r += 4; } 1027 if (x >> 4) { x >>= 4; r += 4; }
778 if (x >> 2) { x >>= 2; r += 2; } 1028 if (x >> 2) { x >>= 2; r += 2; }
779 if (x >> 1) { r += 1; } 1029 if (x >> 1) { r += 1; }
780 1030
781 return r; 1031 return r;
1032#endif
782 } 1033 }
783 1034
784 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1035 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
785 ecb_function_ int ecb_ld64 (uint64_t x) 1036 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
786 { 1037 {
1038#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1039 unsigned long r;
1040 _BitScanReverse64 (&r, x);
1041 return (int)r;
1042#else
787 int r = 0; 1043 int r = 0;
788 1044
789 if (x >> 32) { x >>= 32; r += 32; } 1045 if (x >> 32) { x >>= 32; r += 32; }
790 1046
791 return r + ecb_ld32 (x); 1047 return r + ecb_ld32 (x);
1048#endif
792 } 1049 }
793#endif 1050#endif
794 1051
1052ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
1053ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1054ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
1055ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
1056
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1057ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
796ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1058ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
797{ 1059{
798 return ( (x * 0x0802U & 0x22110U) 1060 return ( (x * 0x0802U & 0x22110U)
799 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1061 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
800} 1062}
801 1063
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1064ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
803ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1065ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
804{ 1066{
805 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1067 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
806 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1068 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
807 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1069 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
808 x = ( x >> 8 ) | ( x << 8); 1070 x = ( x >> 8 ) | ( x << 8);
809 1071
810 return x; 1072 return x;
811} 1073}
812 1074
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1075ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
814ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1076ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
815{ 1077{
816 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1078 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
817 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1079 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
818 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1080 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
819 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1081 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
822 return x; 1084 return x;
823} 1085}
824 1086
825/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1087/* popcount64 is only available on 64 bit cpus as gcc builtin */
826/* so for this version we are lazy */ 1088/* so for this version we are lazy */
827ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1089ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
828ecb_function_ int 1090ecb_function_ ecb_const int
829ecb_popcount64 (uint64_t x) 1091ecb_popcount64 (uint64_t x)
830{ 1092{
831 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1093 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
832} 1094}
833 1095
834ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1096ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
835ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1097ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
836ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1098ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
837ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1099ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
838ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
839ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
840ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
841ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
842 1104
843ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1105ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
844ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1106ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
845ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1107ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
846ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1108ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
847ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1109ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
848ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1110ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
849ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1111ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
850ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1112ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
851 1113
852#if ECB_GCC_VERSION(4,3) 1114#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1115 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1116 #define ecb_bswap16(x) __builtin_bswap16 (x)
1117 #else
853 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1118 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1119 #endif
854 #define ecb_bswap32(x) __builtin_bswap32 (x) 1120 #define ecb_bswap32(x) __builtin_bswap32 (x)
855 #define ecb_bswap64(x) __builtin_bswap64 (x) 1121 #define ecb_bswap64(x) __builtin_bswap64 (x)
1122#elif _MSC_VER
1123 #include <stdlib.h>
1124 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1125 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1126 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
856#else 1127#else
857 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1128 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
858 ecb_function_ uint16_t 1129 ecb_function_ ecb_const uint16_t
859 ecb_bswap16 (uint16_t x) 1130 ecb_bswap16 (uint16_t x)
860 { 1131 {
861 return ecb_rotl16 (x, 8); 1132 return ecb_rotl16 (x, 8);
862 } 1133 }
863 1134
864 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1135 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
865 ecb_function_ uint32_t 1136 ecb_function_ ecb_const uint32_t
866 ecb_bswap32 (uint32_t x) 1137 ecb_bswap32 (uint32_t x)
867 { 1138 {
868 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1139 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
869 } 1140 }
870 1141
871 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1142 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
872 ecb_function_ uint64_t 1143 ecb_function_ ecb_const uint64_t
873 ecb_bswap64 (uint64_t x) 1144 ecb_bswap64 (uint64_t x)
874 { 1145 {
875 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1146 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
876 } 1147 }
877#endif 1148#endif
878 1149
879#if ECB_GCC_VERSION(4,5) 1150#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
880 #define ecb_unreachable() __builtin_unreachable () 1151 #define ecb_unreachable() __builtin_unreachable ()
881#else 1152#else
882 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1153 /* this seems to work fine, but gcc always emits a warning for it :/ */
883 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1154 ecb_inline ecb_noreturn void ecb_unreachable (void);
884 ecb_inline void ecb_unreachable (void) { } 1155 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
885#endif 1156#endif
886 1157
887/* try to tell the compiler that some condition is definitely true */ 1158/* try to tell the compiler that some condition is definitely true */
888#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1159#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
889 1160
890ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1161ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
891ecb_inline unsigned char 1162ecb_inline ecb_const uint32_t
892ecb_byteorder_helper (void) 1163ecb_byteorder_helper (void)
893{ 1164{
894 const uint32_t u = 0x11223344; 1165 /* the union code still generates code under pressure in gcc, */
895 return *(unsigned char *)&u; 1166 /* but less than using pointers, and always seems to */
1167 /* successfully return a constant. */
1168 /* the reason why we have this horrible preprocessor mess */
1169 /* is to avoid it in all cases, at least on common architectures */
1170 /* or when using a recent enough gcc version (>= 4.6) */
1171#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1172 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1173 #define ECB_LITTLE_ENDIAN 1
1174 return 0x44332211;
1175#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1176 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1177 #define ECB_BIG_ENDIAN 1
1178 return 0x11223344;
1179#else
1180 union
1181 {
1182 uint8_t c[4];
1183 uint32_t u;
1184 } u = { 0x11, 0x22, 0x33, 0x44 };
1185 return u.u;
1186#endif
896} 1187}
897 1188
898ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1189ecb_inline ecb_const ecb_bool ecb_big_endian (void);
899ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1190ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
900ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_little_endian (void);
901ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1192ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
902 1193
903#if ECB_GCC_VERSION(3,0) || ECB_C99 1194#if ECB_GCC_VERSION(3,0) || ECB_C99
904 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1195 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
905#else 1196#else
906 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1197 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
907#endif 1198#endif
908 1199
909#if __cplusplus 1200#if ECB_CPP
910 template<typename T> 1201 template<typename T>
911 static inline T ecb_div_rd (T val, T div) 1202 static inline T ecb_div_rd (T val, T div)
912 { 1203 {
913 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1204 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
914 } 1205 }
… …
931 } 1222 }
932#else 1223#else
933 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1224 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
934#endif 1225#endif
935 1226
1227ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1228ecb_function_ ecb_const uint32_t
1229ecb_binary16_to_binary32 (uint32_t x)
1230{
1231 unsigned int s = (x & 0x8000) << (31 - 15);
1232 int e = (x >> 10) & 0x001f;
1233 unsigned int m = x & 0x03ff;
1234
1235 if (ecb_expect_false (e == 31))
1236 /* infinity or NaN */
1237 e = 255 - (127 - 15);
1238 else if (ecb_expect_false (!e))
1239 {
1240 if (ecb_expect_true (!m))
1241 /* zero, handled by code below by forcing e to 0 */
1242 e = 0 - (127 - 15);
1243 else
1244 {
1245 /* subnormal, renormalise */
1246 unsigned int s = 10 - ecb_ld32 (m);
1247
1248 m = (m << s) & 0x3ff; /* mask implicit bit */
1249 e -= s - 1;
1250 }
1251 }
1252
1253 /* e and m now are normalised, or zero, (or inf or nan) */
1254 e += 127 - 15;
1255
1256 return s | (e << 23) | (m << (23 - 10));
1257}
1258
1259ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1260ecb_function_ ecb_const uint16_t
1261ecb_binary32_to_binary16 (uint32_t x)
1262{
1263 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1264 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1265 unsigned int m = x & 0x007fffff;
1266
1267 x &= 0x7fffffff;
1268
1269 /* if it's within range of binary16 normals, use fast path */
1270 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1271 {
1272 /* mantissa round-to-even */
1273 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1274
1275 /* handle overflow */
1276 if (ecb_expect_false (m >= 0x00800000))
1277 {
1278 m >>= 1;
1279 e += 1;
1280 }
1281
1282 return s | (e << 10) | (m >> (23 - 10));
1283 }
1284
1285 /* handle large numbers and infinity */
1286 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1287 return s | 0x7c00;
1288
1289 /* handle zero, subnormals and small numbers */
1290 if (ecb_expect_true (x < 0x38800000))
1291 {
1292 /* zero */
1293 if (ecb_expect_true (!x))
1294 return s;
1295
1296 /* handle subnormals */
1297
1298 /* too small, will be zero */
1299 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1300 return s;
1301
1302 m |= 0x00800000; /* make implicit bit explicit */
1303
1304 /* very tricky - we need to round to the nearest e (+10) bit value */
1305 {
1306 unsigned int bits = 14 - e;
1307 unsigned int half = (1 << (bits - 1)) - 1;
1308 unsigned int even = (m >> bits) & 1;
1309
1310 /* if this overflows, we will end up with a normalised number */
1311 m = (m + half + even) >> bits;
1312 }
1313
1314 return s | m;
1315 }
1316
1317 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1318 m >>= 13;
1319
1320 return s | 0x7c00 | m | !m;
1321}
1322
1323/*******************************************************************************/
1324/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1325
1326/* basically, everything uses "ieee pure-endian" floating point numbers */
1327/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1328#if 0 \
1329 || __i386 || __i386__ \
1330 || ECB_GCC_AMD64 \
1331 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1332 || defined __s390__ || defined __s390x__ \
1333 || defined __mips__ \
1334 || defined __alpha__ \
1335 || defined __hppa__ \
1336 || defined __ia64__ \
1337 || defined __m68k__ \
1338 || defined __m88k__ \
1339 || defined __sh__ \
1340 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1341 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1342 || defined __aarch64__
1343 #define ECB_STDFP 1
1344 #include <string.h> /* for memcpy */
1345#else
1346 #define ECB_STDFP 0
1347#endif
1348
1349#ifndef ECB_NO_LIBM
1350
1351 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1352
1353 /* only the oldest of old doesn't have this one. solaris. */
1354 #ifdef INFINITY
1355 #define ECB_INFINITY INFINITY
1356 #else
1357 #define ECB_INFINITY HUGE_VAL
1358 #endif
1359
1360 #ifdef NAN
1361 #define ECB_NAN NAN
1362 #else
1363 #define ECB_NAN ECB_INFINITY
1364 #endif
1365
1366 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1367 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1368 #define ecb_frexpf(x,e) frexpf ((x), (e))
1369 #else
1370 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1371 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1372 #endif
1373
1374 /* convert a float to ieee single/binary32 */
1375 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1376 ecb_function_ ecb_const uint32_t
1377 ecb_float_to_binary32 (float x)
1378 {
1379 uint32_t r;
1380
1381 #if ECB_STDFP
1382 memcpy (&r, &x, 4);
1383 #else
1384 /* slow emulation, works for anything but -0 */
1385 uint32_t m;
1386 int e;
1387
1388 if (x == 0e0f ) return 0x00000000U;
1389 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1390 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1391 if (x != x ) return 0x7fbfffffU;
1392
1393 m = ecb_frexpf (x, &e) * 0x1000000U;
1394
1395 r = m & 0x80000000U;
1396
1397 if (r)
1398 m = -m;
1399
1400 if (e <= -126)
1401 {
1402 m &= 0xffffffU;
1403 m >>= (-125 - e);
1404 e = -126;
1405 }
1406
1407 r |= (e + 126) << 23;
1408 r |= m & 0x7fffffU;
1409 #endif
1410
1411 return r;
1412 }
1413
1414 /* converts an ieee single/binary32 to a float */
1415 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1416 ecb_function_ ecb_const float
1417 ecb_binary32_to_float (uint32_t x)
1418 {
1419 float r;
1420
1421 #if ECB_STDFP
1422 memcpy (&r, &x, 4);
1423 #else
1424 /* emulation, only works for normals and subnormals and +0 */
1425 int neg = x >> 31;
1426 int e = (x >> 23) & 0xffU;
1427
1428 x &= 0x7fffffU;
1429
1430 if (e)
1431 x |= 0x800000U;
1432 else
1433 e = 1;
1434
1435 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1436 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1437
1438 r = neg ? -r : r;
1439 #endif
1440
1441 return r;
1442 }
1443
1444 /* convert a double to ieee double/binary64 */
1445 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1446 ecb_function_ ecb_const uint64_t
1447 ecb_double_to_binary64 (double x)
1448 {
1449 uint64_t r;
1450
1451 #if ECB_STDFP
1452 memcpy (&r, &x, 8);
1453 #else
1454 /* slow emulation, works for anything but -0 */
1455 uint64_t m;
1456 int e;
1457
1458 if (x == 0e0 ) return 0x0000000000000000U;
1459 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1460 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1461 if (x != x ) return 0X7ff7ffffffffffffU;
1462
1463 m = frexp (x, &e) * 0x20000000000000U;
1464
1465 r = m & 0x8000000000000000;;
1466
1467 if (r)
1468 m = -m;
1469
1470 if (e <= -1022)
1471 {
1472 m &= 0x1fffffffffffffU;
1473 m >>= (-1021 - e);
1474 e = -1022;
1475 }
1476
1477 r |= ((uint64_t)(e + 1022)) << 52;
1478 r |= m & 0xfffffffffffffU;
1479 #endif
1480
1481 return r;
1482 }
1483
1484 /* converts an ieee double/binary64 to a double */
1485 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1486 ecb_function_ ecb_const double
1487 ecb_binary64_to_double (uint64_t x)
1488 {
1489 double r;
1490
1491 #if ECB_STDFP
1492 memcpy (&r, &x, 8);
1493 #else
1494 /* emulation, only works for normals and subnormals and +0 */
1495 int neg = x >> 63;
1496 int e = (x >> 52) & 0x7ffU;
1497
1498 x &= 0xfffffffffffffU;
1499
1500 if (e)
1501 x |= 0x10000000000000U;
1502 else
1503 e = 1;
1504
1505 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1506 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1507
1508 r = neg ? -r : r;
1509 #endif
1510
1511 return r;
1512 }
1513
1514 /* convert a float to ieee half/binary16 */
1515 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1516 ecb_function_ ecb_const uint16_t
1517 ecb_float_to_binary16 (float x)
1518 {
1519 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1520 }
1521
1522 /* convert an ieee half/binary16 to float */
1523 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1524 ecb_function_ ecb_const float
1525 ecb_binary16_to_float (uint16_t x)
1526 {
1527 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1528 }
1529
1530#endif
1531
936#endif 1532#endif
937 1533
938/* ECB.H END */ 1534/* ECB.H END */
939 1535
940#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1536#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
961#define inline_size ecb_inline 1557#define inline_size ecb_inline
962 1558
963#if EV_FEATURE_CODE 1559#if EV_FEATURE_CODE
964# define inline_speed ecb_inline 1560# define inline_speed ecb_inline
965#else 1561#else
966# define inline_speed static noinline 1562# define inline_speed noinline static
967#endif 1563#endif
968 1564
969#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1565#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
970 1566
971#if EV_MINPRI == EV_MAXPRI 1567#if EV_MINPRI == EV_MAXPRI
972# define ABSPRI(w) (((W)w), 0) 1568# define ABSPRI(w) (((W)w), 0)
973#else 1569#else
974# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1570# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
975#endif 1571#endif
976 1572
977#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1573#define EMPTY /* required for microsofts broken pseudo-c compiler */
978#define EMPTY2(a,b) /* used to suppress some warnings */
979 1574
980typedef ev_watcher *W; 1575typedef ev_watcher *W;
981typedef ev_watcher_list *WL; 1576typedef ev_watcher_list *WL;
982typedef ev_watcher_time *WT; 1577typedef ev_watcher_time *WT;
983 1578
… …
1008# include "ev_win32.c" 1603# include "ev_win32.c"
1009#endif 1604#endif
1010 1605
1011/*****************************************************************************/ 1606/*****************************************************************************/
1012 1607
1608#if EV_USE_LINUXAIO
1609# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1610#endif
1611
1013/* define a suitable floor function (only used by periodics atm) */ 1612/* define a suitable floor function (only used by periodics atm) */
1014 1613
1015#if EV_USE_FLOOR 1614#if EV_USE_FLOOR
1016# include <math.h> 1615# include <math.h>
1017# define ev_floor(v) floor (v) 1616# define ev_floor(v) floor (v)
1018#else 1617#else
1019 1618
1020#include <float.h> 1619#include <float.h>
1021 1620
1022/* a floor() replacement function, should be independent of ev_tstamp type */ 1621/* a floor() replacement function, should be independent of ev_tstamp type */
1622noinline
1023static ev_tstamp noinline 1623static ev_tstamp
1024ev_floor (ev_tstamp v) 1624ev_floor (ev_tstamp v)
1025{ 1625{
1026 /* the choice of shift factor is not terribly important */ 1626 /* the choice of shift factor is not terribly important */
1027#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1627#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1028 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1060 1660
1061#ifdef __linux 1661#ifdef __linux
1062# include <sys/utsname.h> 1662# include <sys/utsname.h>
1063#endif 1663#endif
1064 1664
1065static unsigned int noinline ecb_cold 1665noinline ecb_cold
1666static unsigned int
1066ev_linux_version (void) 1667ev_linux_version (void)
1067{ 1668{
1068#ifdef __linux 1669#ifdef __linux
1069 unsigned int v = 0; 1670 unsigned int v = 0;
1070 struct utsname buf; 1671 struct utsname buf;
… …
1099} 1700}
1100 1701
1101/*****************************************************************************/ 1702/*****************************************************************************/
1102 1703
1103#if EV_AVOID_STDIO 1704#if EV_AVOID_STDIO
1104static void noinline ecb_cold 1705noinline ecb_cold
1706static void
1105ev_printerr (const char *msg) 1707ev_printerr (const char *msg)
1106{ 1708{
1107 write (STDERR_FILENO, msg, strlen (msg)); 1709 write (STDERR_FILENO, msg, strlen (msg));
1108} 1710}
1109#endif 1711#endif
1110 1712
1111static void (*syserr_cb)(const char *msg) EV_THROW; 1713static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1112 1714
1113void ecb_cold 1715ecb_cold
1716void
1114ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW 1717ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1115{ 1718{
1116 syserr_cb = cb; 1719 syserr_cb = cb;
1117} 1720}
1118 1721
1119static void noinline ecb_cold 1722noinline ecb_cold
1723static void
1120ev_syserr (const char *msg) 1724ev_syserr (const char *msg)
1121{ 1725{
1122 if (!msg) 1726 if (!msg)
1123 msg = "(libev) system error"; 1727 msg = "(libev) system error";
1124 1728
… …
1137 abort (); 1741 abort ();
1138 } 1742 }
1139} 1743}
1140 1744
1141static void * 1745static void *
1142ev_realloc_emul (void *ptr, long size) 1746ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1143{ 1747{
1144#if __GLIBC__
1145 return realloc (ptr, size);
1146#else
1147 /* some systems, notably openbsd and darwin, fail to properly 1748 /* some systems, notably openbsd and darwin, fail to properly
1148 * 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
1149 * the single unix specification, so work around them here. 1750 * the single unix specification, so work around them here.
1751 * recently, also (at least) fedora and debian started breaking it,
1752 * despite documenting it otherwise.
1150 */ 1753 */
1151 1754
1152 if (size) 1755 if (size)
1153 return realloc (ptr, size); 1756 return realloc (ptr, size);
1154 1757
1155 free (ptr); 1758 free (ptr);
1156 return 0; 1759 return 0;
1157#endif
1158} 1760}
1159 1761
1160static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1762static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1161 1763
1162void ecb_cold 1764ecb_cold
1765void
1163ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW 1766ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1164{ 1767{
1165 alloc = cb; 1768 alloc = cb;
1166} 1769}
1167 1770
1168inline_speed void * 1771inline_speed void *
… …
1195typedef struct 1798typedef struct
1196{ 1799{
1197 WL head; 1800 WL head;
1198 unsigned char events; /* the events watched for */ 1801 unsigned char events; /* the events watched for */
1199 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) */
1200 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 */
1201 unsigned char unused; 1804 unsigned char unused;
1202#if EV_USE_EPOLL 1805#if EV_USE_EPOLL
1203 unsigned int egen; /* generation counter to counter epoll bugs */ 1806 unsigned int egen; /* generation counter to counter epoll bugs */
1204#endif 1807#endif
1205#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1808#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1285 1888
1286/*****************************************************************************/ 1889/*****************************************************************************/
1287 1890
1288#ifndef EV_HAVE_EV_TIME 1891#ifndef EV_HAVE_EV_TIME
1289ev_tstamp 1892ev_tstamp
1290ev_time (void) EV_THROW 1893ev_time (void) EV_NOEXCEPT
1291{ 1894{
1292#if EV_USE_REALTIME 1895#if EV_USE_REALTIME
1293 if (expect_true (have_realtime)) 1896 if (expect_true (have_realtime))
1294 { 1897 {
1295 struct timespec ts; 1898 struct timespec ts;
… …
1319 return ev_time (); 1922 return ev_time ();
1320} 1923}
1321 1924
1322#if EV_MULTIPLICITY 1925#if EV_MULTIPLICITY
1323ev_tstamp 1926ev_tstamp
1324ev_now (EV_P) EV_THROW 1927ev_now (EV_P) EV_NOEXCEPT
1325{ 1928{
1326 return ev_rt_now; 1929 return ev_rt_now;
1327} 1930}
1328#endif 1931#endif
1329 1932
1330void 1933void
1331ev_sleep (ev_tstamp delay) EV_THROW 1934ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1332{ 1935{
1333 if (delay > 0.) 1936 if (delay > 0.)
1334 { 1937 {
1335#if EV_USE_NANOSLEEP 1938#if EV_USE_NANOSLEEP
1336 struct timespec ts; 1939 struct timespec ts;
1337 1940
1338 EV_TS_SET (ts, delay); 1941 EV_TS_SET (ts, delay);
1339 nanosleep (&ts, 0); 1942 nanosleep (&ts, 0);
1340#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) */
1341 Sleep ((unsigned long)(delay * 1e3)); 1946 Sleep ((unsigned long)(delay * 1e3));
1342#else 1947#else
1343 struct timeval tv; 1948 struct timeval tv;
1344 1949
1345 /* 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 */
… …
1376 } 1981 }
1377 1982
1378 return ncur; 1983 return ncur;
1379} 1984}
1380 1985
1381static void * noinline ecb_cold 1986noinline ecb_cold
1987static void *
1382array_realloc (int elem, void *base, int *cur, int cnt) 1988array_realloc (int elem, void *base, int *cur, int cnt)
1383{ 1989{
1384 *cur = array_nextsize (elem, *cur, cnt); 1990 *cur = array_nextsize (elem, *cur, cnt);
1385 return ev_realloc (base, elem * *cur); 1991 return ev_realloc (base, elem * *cur);
1386} 1992}
1387 1993
1994#define array_needsize_noinit(base,count)
1995
1388#define array_init_zero(base,count) \ 1996#define array_needsize_zerofill(base,count) \
1389 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1997 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1390 1998
1391#define array_needsize(type,base,cur,cnt,init) \ 1999#define array_needsize(type,base,cur,cnt,init) \
1392 if (expect_false ((cnt) > (cur))) \ 2000 if (expect_false ((cnt) > (cur))) \
1393 { \ 2001 { \
1394 int ecb_unused ocur_ = (cur); \ 2002 ecb_unused int ocur_ = (cur); \
1395 (base) = (type *)array_realloc \ 2003 (base) = (type *)array_realloc \
1396 (sizeof (type), (base), &(cur), (cnt)); \ 2004 (sizeof (type), (base), &(cur), (cnt)); \
1397 init ((base) + (ocur_), (cur) - ocur_); \ 2005 init ((base) + (ocur_), (cur) - ocur_); \
1398 } 2006 }
1399 2007
… …
1411 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
1412 2020
1413/*****************************************************************************/ 2021/*****************************************************************************/
1414 2022
1415/* dummy callback for pending events */ 2023/* dummy callback for pending events */
1416static void noinline 2024noinline
2025static void
1417pendingcb (EV_P_ ev_prepare *w, int revents) 2026pendingcb (EV_P_ ev_prepare *w, int revents)
1418{ 2027{
1419} 2028}
1420 2029
1421void noinline 2030noinline
2031void
1422ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2032ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1423{ 2033{
1424 W w_ = (W)w; 2034 W w_ = (W)w;
1425 int pri = ABSPRI (w_); 2035 int pri = ABSPRI (w_);
1426 2036
1427 if (expect_false (w_->pending)) 2037 if (expect_false (w_->pending))
1428 pendings [pri][w_->pending - 1].events |= revents; 2038 pendings [pri][w_->pending - 1].events |= revents;
1429 else 2039 else
1430 { 2040 {
1431 w_->pending = ++pendingcnt [pri]; 2041 w_->pending = ++pendingcnt [pri];
1432 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2042 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1433 pendings [pri][w_->pending - 1].w = w_; 2043 pendings [pri][w_->pending - 1].w = w_;
1434 pendings [pri][w_->pending - 1].events = revents; 2044 pendings [pri][w_->pending - 1].events = revents;
1435 } 2045 }
1436 2046
1437 pendingpri = NUMPRI - 1; 2047 pendingpri = NUMPRI - 1;
1438} 2048}
1439 2049
1440inline_speed void 2050inline_speed void
1441feed_reverse (EV_P_ W w) 2051feed_reverse (EV_P_ W w)
1442{ 2052{
1443 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2053 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1444 rfeeds [rfeedcnt++] = w; 2054 rfeeds [rfeedcnt++] = w;
1445} 2055}
1446 2056
1447inline_size void 2057inline_size void
1448feed_reverse_done (EV_P_ int revents) 2058feed_reverse_done (EV_P_ int revents)
… …
1488 if (expect_true (!anfd->reify)) 2098 if (expect_true (!anfd->reify))
1489 fd_event_nocheck (EV_A_ fd, revents); 2099 fd_event_nocheck (EV_A_ fd, revents);
1490} 2100}
1491 2101
1492void 2102void
1493ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2103ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1494{ 2104{
1495 if (fd >= 0 && fd < anfdmax) 2105 if (fd >= 0 && fd < anfdmax)
1496 fd_event_nocheck (EV_A_ fd, revents); 2106 fd_event_nocheck (EV_A_ fd, revents);
1497} 2107}
1498 2108
… …
1556 2166
1557 fdchangecnt = 0; 2167 fdchangecnt = 0;
1558} 2168}
1559 2169
1560/* something about the given fd changed */ 2170/* something about the given fd changed */
1561inline_size void 2171inline_size
2172void
1562fd_change (EV_P_ int fd, int flags) 2173fd_change (EV_P_ int fd, int flags)
1563{ 2174{
1564 unsigned char reify = anfds [fd].reify; 2175 unsigned char reify = anfds [fd].reify;
1565 anfds [fd].reify |= flags; 2176 anfds [fd].reify |= flags;
1566 2177
1567 if (expect_true (!reify)) 2178 if (expect_true (!reify))
1568 { 2179 {
1569 ++fdchangecnt; 2180 ++fdchangecnt;
1570 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2181 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1571 fdchanges [fdchangecnt - 1] = fd; 2182 fdchanges [fdchangecnt - 1] = fd;
1572 } 2183 }
1573} 2184}
1574 2185
1575/* 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 */
1576inline_speed void ecb_cold 2187inline_speed ecb_cold void
1577fd_kill (EV_P_ int fd) 2188fd_kill (EV_P_ int fd)
1578{ 2189{
1579 ev_io *w; 2190 ev_io *w;
1580 2191
1581 while ((w = (ev_io *)anfds [fd].head)) 2192 while ((w = (ev_io *)anfds [fd].head))
… …
1584 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);
1585 } 2196 }
1586} 2197}
1587 2198
1588/* check whether the given fd is actually valid, for error recovery */ 2199/* check whether the given fd is actually valid, for error recovery */
1589inline_size int ecb_cold 2200inline_size ecb_cold int
1590fd_valid (int fd) 2201fd_valid (int fd)
1591{ 2202{
1592#ifdef _WIN32 2203#ifdef _WIN32
1593 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2204 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1594#else 2205#else
1595 return fcntl (fd, F_GETFD) != -1; 2206 return fcntl (fd, F_GETFD) != -1;
1596#endif 2207#endif
1597} 2208}
1598 2209
1599/* called on EBADF to verify fds */ 2210/* called on EBADF to verify fds */
1600static void noinline ecb_cold 2211noinline ecb_cold
2212static void
1601fd_ebadf (EV_P) 2213fd_ebadf (EV_P)
1602{ 2214{
1603 int fd; 2215 int fd;
1604 2216
1605 for (fd = 0; fd < anfdmax; ++fd) 2217 for (fd = 0; fd < anfdmax; ++fd)
… …
1607 if (!fd_valid (fd) && errno == EBADF) 2219 if (!fd_valid (fd) && errno == EBADF)
1608 fd_kill (EV_A_ fd); 2220 fd_kill (EV_A_ fd);
1609} 2221}
1610 2222
1611/* 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 */
1612static void noinline ecb_cold 2224noinline ecb_cold
2225static void
1613fd_enomem (EV_P) 2226fd_enomem (EV_P)
1614{ 2227{
1615 int fd; 2228 int fd;
1616 2229
1617 for (fd = anfdmax; fd--; ) 2230 for (fd = anfdmax; fd--; )
… …
1621 break; 2234 break;
1622 } 2235 }
1623} 2236}
1624 2237
1625/* 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 */
1626static void noinline 2239noinline
2240static void
1627fd_rearm_all (EV_P) 2241fd_rearm_all (EV_P)
1628{ 2242{
1629 int fd; 2243 int fd;
1630 2244
1631 for (fd = 0; fd < anfdmax; ++fd) 2245 for (fd = 0; fd < anfdmax; ++fd)
… …
1812 2426
1813/*****************************************************************************/ 2427/*****************************************************************************/
1814 2428
1815#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2429#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1816 2430
1817static void noinline ecb_cold 2431noinline ecb_cold
2432static void
1818evpipe_init (EV_P) 2433evpipe_init (EV_P)
1819{ 2434{
1820 if (!ev_is_active (&pipe_w)) 2435 if (!ev_is_active (&pipe_w))
1821 { 2436 {
2437 int fds [2];
2438
1822# if EV_USE_EVENTFD 2439# if EV_USE_EVENTFD
2440 fds [0] = -1;
1823 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2441 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1824 if (evfd < 0 && errno == EINVAL) 2442 if (fds [1] < 0 && errno == EINVAL)
1825 evfd = eventfd (0, 0); 2443 fds [1] = eventfd (0, 0);
1826 2444
1827 if (evfd >= 0) 2445 if (fds [1] < 0)
1828 {
1829 evpipe [0] = -1;
1830 fd_intern (evfd); /* doing it twice doesn't hurt */
1831 ev_io_set (&pipe_w, evfd, EV_READ);
1832 }
1833 else
1834# endif 2446# endif
1835 { 2447 {
1836 while (pipe (evpipe)) 2448 while (pipe (fds))
1837 ev_syserr ("(libev) error creating signal/async pipe"); 2449 ev_syserr ("(libev) error creating signal/async pipe");
1838 2450
1839 fd_intern (evpipe [0]); 2451 fd_intern (fds [0]);
1840 fd_intern (evpipe [1]);
1841 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1842 } 2452 }
1843 2453
2454 evpipe [0] = fds [0];
2455
2456 if (evpipe [1] < 0)
2457 evpipe [1] = fds [1]; /* first call, set write fd */
2458 else
2459 {
2460 /* on subsequent calls, do not change evpipe [1] */
2461 /* so that evpipe_write can always rely on its value. */
2462 /* this branch does not do anything sensible on windows, */
2463 /* so must not be executed on windows */
2464
2465 dup2 (fds [1], evpipe [1]);
2466 close (fds [1]);
2467 }
2468
2469 fd_intern (evpipe [1]);
2470
2471 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1844 ev_io_start (EV_A_ &pipe_w); 2472 ev_io_start (EV_A_ &pipe_w);
1845 ev_unref (EV_A); /* watcher should not keep loop alive */ 2473 ev_unref (EV_A); /* watcher should not keep loop alive */
1846 } 2474 }
1847} 2475}
1848 2476
… …
1853 2481
1854 if (expect_true (*flag)) 2482 if (expect_true (*flag))
1855 return; 2483 return;
1856 2484
1857 *flag = 1; 2485 *flag = 1;
1858
1859 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2486 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1860 2487
1861 pipe_write_skipped = 1; 2488 pipe_write_skipped = 1;
1862 2489
1863 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ 2490 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1864 2491
1865 if (pipe_write_wanted) 2492 if (pipe_write_wanted)
1866 { 2493 {
1867 int old_errno; 2494 int old_errno;
1868 2495
1869 pipe_write_skipped = 0; /* just an optimisation, no fence needed */ 2496 pipe_write_skipped = 0;
2497 ECB_MEMORY_FENCE_RELEASE;
1870 2498
1871 old_errno = errno; /* save errno because write will clobber it */ 2499 old_errno = errno; /* save errno because write will clobber it */
1872 2500
1873#if EV_USE_EVENTFD 2501#if EV_USE_EVENTFD
1874 if (evfd >= 0) 2502 if (evpipe [0] < 0)
1875 { 2503 {
1876 uint64_t counter = 1; 2504 uint64_t counter = 1;
1877 write (evfd, &counter, sizeof (uint64_t)); 2505 write (evpipe [1], &counter, sizeof (uint64_t));
1878 } 2506 }
1879 else 2507 else
1880#endif 2508#endif
1881 { 2509 {
1882#ifdef _WIN32 2510#ifdef _WIN32
1883 WSABUF buf; 2511 WSABUF buf;
1884 DWORD sent; 2512 DWORD sent;
1885 buf.buf = &buf; 2513 buf.buf = (char *)&buf;
1886 buf.len = 1; 2514 buf.len = 1;
1887 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);
1888#else 2516#else
1889 write (evpipe [1], &(evpipe [1]), 1); 2517 write (evpipe [1], &(evpipe [1]), 1);
1890#endif 2518#endif
… …
1902 int i; 2530 int i;
1903 2531
1904 if (revents & EV_READ) 2532 if (revents & EV_READ)
1905 { 2533 {
1906#if EV_USE_EVENTFD 2534#if EV_USE_EVENTFD
1907 if (evfd >= 0) 2535 if (evpipe [0] < 0)
1908 { 2536 {
1909 uint64_t counter; 2537 uint64_t counter;
1910 read (evfd, &counter, sizeof (uint64_t)); 2538 read (evpipe [1], &counter, sizeof (uint64_t));
1911 } 2539 }
1912 else 2540 else
1913#endif 2541#endif
1914 { 2542 {
1915 char dummy[4]; 2543 char dummy[4];
1916#ifdef _WIN32 2544#ifdef _WIN32
1917 WSABUF buf; 2545 WSABUF buf;
1918 DWORD recvd; 2546 DWORD recvd;
2547 DWORD flags = 0;
1919 buf.buf = dummy; 2548 buf.buf = dummy;
1920 buf.len = sizeof (dummy); 2549 buf.len = sizeof (dummy);
1921 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0); 2550 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1922#else 2551#else
1923 read (evpipe [0], &dummy, sizeof (dummy)); 2552 read (evpipe [0], &dummy, sizeof (dummy));
1924#endif 2553#endif
1925 } 2554 }
1926 } 2555 }
… …
1932#if EV_SIGNAL_ENABLE 2561#if EV_SIGNAL_ENABLE
1933 if (sig_pending) 2562 if (sig_pending)
1934 { 2563 {
1935 sig_pending = 0; 2564 sig_pending = 0;
1936 2565
1937 ECB_MEMORY_FENCE_RELEASE; 2566 ECB_MEMORY_FENCE;
1938 2567
1939 for (i = EV_NSIG - 1; i--; ) 2568 for (i = EV_NSIG - 1; i--; )
1940 if (expect_false (signals [i].pending)) 2569 if (expect_false (signals [i].pending))
1941 ev_feed_signal_event (EV_A_ i + 1); 2570 ev_feed_signal_event (EV_A_ i + 1);
1942 } 2571 }
… …
1945#if EV_ASYNC_ENABLE 2574#if EV_ASYNC_ENABLE
1946 if (async_pending) 2575 if (async_pending)
1947 { 2576 {
1948 async_pending = 0; 2577 async_pending = 0;
1949 2578
1950 ECB_MEMORY_FENCE_RELEASE; 2579 ECB_MEMORY_FENCE;
1951 2580
1952 for (i = asynccnt; i--; ) 2581 for (i = asynccnt; i--; )
1953 if (asyncs [i]->sent) 2582 if (asyncs [i]->sent)
1954 { 2583 {
1955 asyncs [i]->sent = 0; 2584 asyncs [i]->sent = 0;
2585 ECB_MEMORY_FENCE_RELEASE;
1956 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2586 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1957 } 2587 }
1958 } 2588 }
1959#endif 2589#endif
1960} 2590}
1961 2591
1962/*****************************************************************************/ 2592/*****************************************************************************/
1963 2593
1964void 2594void
1965ev_feed_signal (int signum) EV_THROW 2595ev_feed_signal (int signum) EV_NOEXCEPT
1966{ 2596{
1967#if EV_MULTIPLICITY 2597#if EV_MULTIPLICITY
2598 EV_P;
2599 ECB_MEMORY_FENCE_ACQUIRE;
1968 EV_P = signals [signum - 1].loop; 2600 EV_A = signals [signum - 1].loop;
1969 2601
1970 if (!EV_A) 2602 if (!EV_A)
1971 return; 2603 return;
1972#endif 2604#endif
1973 2605
1974 if (!ev_active (&pipe_w))
1975 return;
1976
1977 signals [signum - 1].pending = 1; 2606 signals [signum - 1].pending = 1;
1978 evpipe_write (EV_A_ &sig_pending); 2607 evpipe_write (EV_A_ &sig_pending);
1979} 2608}
1980 2609
1981static void 2610static void
… …
1986#endif 2615#endif
1987 2616
1988 ev_feed_signal (signum); 2617 ev_feed_signal (signum);
1989} 2618}
1990 2619
1991void noinline 2620noinline
2621void
1992ev_feed_signal_event (EV_P_ int signum) EV_THROW 2622ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
1993{ 2623{
1994 WL w; 2624 WL w;
1995 2625
1996 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2626 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1997 return; 2627 return;
1998 2628
1999 --signum; 2629 --signum;
2000 2630
2001#if EV_MULTIPLICITY 2631#if EV_MULTIPLICITY
… …
2005 if (expect_false (signals [signum].loop != EV_A)) 2635 if (expect_false (signals [signum].loop != EV_A))
2006 return; 2636 return;
2007#endif 2637#endif
2008 2638
2009 signals [signum].pending = 0; 2639 signals [signum].pending = 0;
2640 ECB_MEMORY_FENCE_RELEASE;
2010 2641
2011 for (w = signals [signum].head; w; w = w->next) 2642 for (w = signals [signum].head; w; w = w->next)
2012 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2643 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
2013} 2644}
2014 2645
… …
2105# include "ev_kqueue.c" 2736# include "ev_kqueue.c"
2106#endif 2737#endif
2107#if EV_USE_EPOLL 2738#if EV_USE_EPOLL
2108# include "ev_epoll.c" 2739# include "ev_epoll.c"
2109#endif 2740#endif
2741#if EV_USE_LINUXAIO
2742# include "ev_linuxaio.c"
2743#endif
2110#if EV_USE_POLL 2744#if EV_USE_POLL
2111# include "ev_poll.c" 2745# include "ev_poll.c"
2112#endif 2746#endif
2113#if EV_USE_SELECT 2747#if EV_USE_SELECT
2114# include "ev_select.c" 2748# include "ev_select.c"
2115#endif 2749#endif
2116 2750
2117int ecb_cold 2751ecb_cold int
2118ev_version_major (void) EV_THROW 2752ev_version_major (void) EV_NOEXCEPT
2119{ 2753{
2120 return EV_VERSION_MAJOR; 2754 return EV_VERSION_MAJOR;
2121} 2755}
2122 2756
2123int ecb_cold 2757ecb_cold int
2124ev_version_minor (void) EV_THROW 2758ev_version_minor (void) EV_NOEXCEPT
2125{ 2759{
2126 return EV_VERSION_MINOR; 2760 return EV_VERSION_MINOR;
2127} 2761}
2128 2762
2129/* 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 */
2130int inline_size ecb_cold 2764inline_size ecb_cold int
2131enable_secure (void) 2765enable_secure (void)
2132{ 2766{
2133#ifdef _WIN32 2767#ifdef _WIN32
2134 return 0; 2768 return 0;
2135#else 2769#else
2136 return getuid () != geteuid () 2770 return getuid () != geteuid ()
2137 || getgid () != getegid (); 2771 || getgid () != getegid ();
2138#endif 2772#endif
2139} 2773}
2140 2774
2141unsigned int ecb_cold 2775ecb_cold
2776unsigned int
2142ev_supported_backends (void) EV_THROW 2777ev_supported_backends (void) EV_NOEXCEPT
2143{ 2778{
2144 unsigned int flags = 0; 2779 unsigned int flags = 0;
2145 2780
2146 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2781 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2147 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2782 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2148 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2783 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2784 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2149 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2785 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2150 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2786 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2151 2787
2152 return flags; 2788 return flags;
2153} 2789}
2154 2790
2155unsigned int ecb_cold 2791ecb_cold
2792unsigned int
2156ev_recommended_backends (void) EV_THROW 2793ev_recommended_backends (void) EV_NOEXCEPT
2157{ 2794{
2158 unsigned int flags = ev_supported_backends (); 2795 unsigned int flags = ev_supported_backends ();
2159 2796
2160#ifndef __NetBSD__ 2797#ifndef __NetBSD__
2161 /* kqueue is borked on everything but netbsd apparently */ 2798 /* kqueue is borked on everything but netbsd apparently */
… …
2169#endif 2806#endif
2170#ifdef __FreeBSD__ 2807#ifdef __FreeBSD__
2171 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) */
2172#endif 2809#endif
2173 2810
2811 /* TODO: linuxaio is very experimental */
2812 flags &= ~EVBACKEND_LINUXAIO;
2813
2174 return flags; 2814 return flags;
2175} 2815}
2176 2816
2177unsigned int ecb_cold 2817ecb_cold
2818unsigned int
2178ev_embeddable_backends (void) EV_THROW 2819ev_embeddable_backends (void) EV_NOEXCEPT
2179{ 2820{
2180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2821 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2181 2822
2182 /* 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 */
2183 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 */
… …
2185 2826
2186 return flags; 2827 return flags;
2187} 2828}
2188 2829
2189unsigned int 2830unsigned int
2190ev_backend (EV_P) EV_THROW 2831ev_backend (EV_P) EV_NOEXCEPT
2191{ 2832{
2192 return backend; 2833 return backend;
2193} 2834}
2194 2835
2195#if EV_FEATURE_API 2836#if EV_FEATURE_API
2196unsigned int 2837unsigned int
2197ev_iteration (EV_P) EV_THROW 2838ev_iteration (EV_P) EV_NOEXCEPT
2198{ 2839{
2199 return loop_count; 2840 return loop_count;
2200} 2841}
2201 2842
2202unsigned int 2843unsigned int
2203ev_depth (EV_P) EV_THROW 2844ev_depth (EV_P) EV_NOEXCEPT
2204{ 2845{
2205 return loop_depth; 2846 return loop_depth;
2206} 2847}
2207 2848
2208void 2849void
2209ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2850ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2210{ 2851{
2211 io_blocktime = interval; 2852 io_blocktime = interval;
2212} 2853}
2213 2854
2214void 2855void
2215ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2856ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2216{ 2857{
2217 timeout_blocktime = interval; 2858 timeout_blocktime = interval;
2218} 2859}
2219 2860
2220void 2861void
2221ev_set_userdata (EV_P_ void *data) EV_THROW 2862ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2222{ 2863{
2223 userdata = data; 2864 userdata = data;
2224} 2865}
2225 2866
2226void * 2867void *
2227ev_userdata (EV_P) EV_THROW 2868ev_userdata (EV_P) EV_NOEXCEPT
2228{ 2869{
2229 return userdata; 2870 return userdata;
2230} 2871}
2231 2872
2232void 2873void
2233ev_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
2234{ 2875{
2235 invoke_cb = invoke_pending_cb; 2876 invoke_cb = invoke_pending_cb;
2236} 2877}
2237 2878
2238void 2879void
2239ev_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
2240{ 2881{
2241 release_cb = release; 2882 release_cb = release;
2242 acquire_cb = acquire; 2883 acquire_cb = acquire;
2243} 2884}
2244#endif 2885#endif
2245 2886
2246/* initialise a loop structure, must be zero-initialised */ 2887/* initialise a loop structure, must be zero-initialised */
2247static void noinline ecb_cold 2888noinline ecb_cold
2889static void
2248loop_init (EV_P_ unsigned int flags) EV_THROW 2890loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2249{ 2891{
2250 if (!backend) 2892 if (!backend)
2251 { 2893 {
2252 origflags = flags; 2894 origflags = flags;
2253 2895
… …
2298#if EV_ASYNC_ENABLE 2940#if EV_ASYNC_ENABLE
2299 async_pending = 0; 2941 async_pending = 0;
2300#endif 2942#endif
2301 pipe_write_skipped = 0; 2943 pipe_write_skipped = 0;
2302 pipe_write_wanted = 0; 2944 pipe_write_wanted = 0;
2945 evpipe [0] = -1;
2946 evpipe [1] = -1;
2303#if EV_USE_INOTIFY 2947#if EV_USE_INOTIFY
2304 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2948 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2305#endif 2949#endif
2306#if EV_USE_SIGNALFD 2950#if EV_USE_SIGNALFD
2307 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2951 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2309 2953
2310 if (!(flags & EVBACKEND_MASK)) 2954 if (!(flags & EVBACKEND_MASK))
2311 flags |= ev_recommended_backends (); 2955 flags |= ev_recommended_backends ();
2312 2956
2313#if EV_USE_IOCP 2957#if EV_USE_IOCP
2314 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2958 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2315#endif 2959#endif
2316#if EV_USE_PORT 2960#if EV_USE_PORT
2317 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2961 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2318#endif 2962#endif
2319#if EV_USE_KQUEUE 2963#if EV_USE_KQUEUE
2320 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);
2321#endif 2968#endif
2322#if EV_USE_EPOLL 2969#if EV_USE_EPOLL
2323 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2970 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2324#endif 2971#endif
2325#if EV_USE_POLL 2972#if EV_USE_POLL
2326 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2973 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2327#endif 2974#endif
2328#if EV_USE_SELECT 2975#if EV_USE_SELECT
2329 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2976 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2330#endif 2977#endif
2331 2978
2332 ev_prepare_init (&pending_w, pendingcb); 2979 ev_prepare_init (&pending_w, pendingcb);
2333 2980
2334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2981#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2337#endif 2984#endif
2338 } 2985 }
2339} 2986}
2340 2987
2341/* free up a loop structure */ 2988/* free up a loop structure */
2342void ecb_cold 2989ecb_cold
2990void
2343ev_loop_destroy (EV_P) 2991ev_loop_destroy (EV_P)
2344{ 2992{
2345 int i; 2993 int i;
2346 2994
2347#if EV_MULTIPLICITY 2995#if EV_MULTIPLICITY
… …
2358 EV_INVOKE_PENDING; 3006 EV_INVOKE_PENDING;
2359 } 3007 }
2360#endif 3008#endif
2361 3009
2362#if EV_CHILD_ENABLE 3010#if EV_CHILD_ENABLE
2363 if (ev_is_active (&childev)) 3011 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2364 { 3012 {
2365 ev_ref (EV_A); /* child watcher */ 3013 ev_ref (EV_A); /* child watcher */
2366 ev_signal_stop (EV_A_ &childev); 3014 ev_signal_stop (EV_A_ &childev);
2367 } 3015 }
2368#endif 3016#endif
… …
2370 if (ev_is_active (&pipe_w)) 3018 if (ev_is_active (&pipe_w))
2371 { 3019 {
2372 /*ev_ref (EV_A);*/ 3020 /*ev_ref (EV_A);*/
2373 /*ev_io_stop (EV_A_ &pipe_w);*/ 3021 /*ev_io_stop (EV_A_ &pipe_w);*/
2374 3022
2375#if EV_USE_EVENTFD
2376 if (evfd >= 0)
2377 close (evfd);
2378#endif
2379
2380 if (evpipe [0] >= 0)
2381 {
2382 EV_WIN32_CLOSE_FD (evpipe [0]); 3023 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2383 EV_WIN32_CLOSE_FD (evpipe [1]); 3024 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2384 }
2385 } 3025 }
2386 3026
2387#if EV_USE_SIGNALFD 3027#if EV_USE_SIGNALFD
2388 if (ev_is_active (&sigfd_w)) 3028 if (ev_is_active (&sigfd_w))
2389 close (sigfd); 3029 close (sigfd);
… …
2396 3036
2397 if (backend_fd >= 0) 3037 if (backend_fd >= 0)
2398 close (backend_fd); 3038 close (backend_fd);
2399 3039
2400#if EV_USE_IOCP 3040#if EV_USE_IOCP
2401 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3041 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2402#endif 3042#endif
2403#if EV_USE_PORT 3043#if EV_USE_PORT
2404 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3044 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2405#endif 3045#endif
2406#if EV_USE_KQUEUE 3046#if EV_USE_KQUEUE
2407 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);
2408#endif 3051#endif
2409#if EV_USE_EPOLL 3052#if EV_USE_EPOLL
2410 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3053 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2411#endif 3054#endif
2412#if EV_USE_POLL 3055#if EV_USE_POLL
2413 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3056 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2414#endif 3057#endif
2415#if EV_USE_SELECT 3058#if EV_USE_SELECT
2416 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3059 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2417#endif 3060#endif
2418 3061
2419 for (i = NUMPRI; i--; ) 3062 for (i = NUMPRI; i--; )
2420 { 3063 {
2421 array_free (pending, [i]); 3064 array_free (pending, [i]);
… …
2463 3106
2464inline_size void 3107inline_size void
2465loop_fork (EV_P) 3108loop_fork (EV_P)
2466{ 3109{
2467#if EV_USE_PORT 3110#if EV_USE_PORT
2468 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3111 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2469#endif 3112#endif
2470#if EV_USE_KQUEUE 3113#if EV_USE_KQUEUE
2471 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);
2472#endif 3118#endif
2473#if EV_USE_EPOLL 3119#if EV_USE_EPOLL
2474 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3120 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2475#endif 3121#endif
2476#if EV_USE_INOTIFY 3122#if EV_USE_INOTIFY
2477 infy_fork (EV_A); 3123 infy_fork (EV_A);
2478#endif 3124#endif
2479 3125
3126#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2480 if (ev_is_active (&pipe_w)) 3127 if (ev_is_active (&pipe_w) && postfork != 2)
2481 { 3128 {
2482 /* 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 */
2483 3130
2484 ev_ref (EV_A); 3131 ev_ref (EV_A);
2485 ev_io_stop (EV_A_ &pipe_w); 3132 ev_io_stop (EV_A_ &pipe_w);
2486 3133
2487#if EV_USE_EVENTFD
2488 if (evfd >= 0)
2489 close (evfd);
2490#endif
2491
2492 if (evpipe [0] >= 0) 3134 if (evpipe [0] >= 0)
2493 {
2494 EV_WIN32_CLOSE_FD (evpipe [0]); 3135 EV_WIN32_CLOSE_FD (evpipe [0]);
2495 EV_WIN32_CLOSE_FD (evpipe [1]);
2496 }
2497 3136
2498#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2499 evpipe_init (EV_A); 3137 evpipe_init (EV_A);
2500 /* now iterate over everything, in case we missed something */ 3138 /* iterate over everything, in case we missed something before */
2501 pipecb (EV_A_ &pipe_w, EV_READ); 3139 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2502#endif
2503 } 3140 }
3141#endif
2504 3142
2505 postfork = 0; 3143 postfork = 0;
2506} 3144}
2507 3145
2508#if EV_MULTIPLICITY 3146#if EV_MULTIPLICITY
2509 3147
3148ecb_cold
2510struct ev_loop * ecb_cold 3149struct ev_loop *
2511ev_loop_new (unsigned int flags) EV_THROW 3150ev_loop_new (unsigned int flags) EV_NOEXCEPT
2512{ 3151{
2513 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3152 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2514 3153
2515 memset (EV_A, 0, sizeof (struct ev_loop)); 3154 memset (EV_A, 0, sizeof (struct ev_loop));
2516 loop_init (EV_A_ flags); 3155 loop_init (EV_A_ flags);
… …
2523} 3162}
2524 3163
2525#endif /* multiplicity */ 3164#endif /* multiplicity */
2526 3165
2527#if EV_VERIFY 3166#if EV_VERIFY
2528static void noinline ecb_cold 3167noinline ecb_cold
3168static void
2529verify_watcher (EV_P_ W w) 3169verify_watcher (EV_P_ W w)
2530{ 3170{
2531 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));
2532 3172
2533 if (w->pending) 3173 if (w->pending)
2534 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));
2535} 3175}
2536 3176
2537static void noinline ecb_cold 3177noinline ecb_cold
3178static void
2538verify_heap (EV_P_ ANHE *heap, int N) 3179verify_heap (EV_P_ ANHE *heap, int N)
2539{ 3180{
2540 int i; 3181 int i;
2541 3182
2542 for (i = HEAP0; i < N + HEAP0; ++i) 3183 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2547 3188
2548 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3189 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2549 } 3190 }
2550} 3191}
2551 3192
2552static void noinline ecb_cold 3193noinline ecb_cold
3194static void
2553array_verify (EV_P_ W *ws, int cnt) 3195array_verify (EV_P_ W *ws, int cnt)
2554{ 3196{
2555 while (cnt--) 3197 while (cnt--)
2556 { 3198 {
2557 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3199 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2560} 3202}
2561#endif 3203#endif
2562 3204
2563#if EV_FEATURE_API 3205#if EV_FEATURE_API
2564void ecb_cold 3206void ecb_cold
2565ev_verify (EV_P) EV_THROW 3207ev_verify (EV_P) EV_NOEXCEPT
2566{ 3208{
2567#if EV_VERIFY 3209#if EV_VERIFY
2568 int i; 3210 int i;
2569 WL w, w2; 3211 WL w, w2;
2570 3212
… …
2646#endif 3288#endif
2647} 3289}
2648#endif 3290#endif
2649 3291
2650#if EV_MULTIPLICITY 3292#if EV_MULTIPLICITY
3293ecb_cold
2651struct ev_loop * ecb_cold 3294struct ev_loop *
2652#else 3295#else
2653int 3296int
2654#endif 3297#endif
2655ev_default_loop (unsigned int flags) EV_THROW 3298ev_default_loop (unsigned int flags) EV_NOEXCEPT
2656{ 3299{
2657 if (!ev_default_loop_ptr) 3300 if (!ev_default_loop_ptr)
2658 { 3301 {
2659#if EV_MULTIPLICITY 3302#if EV_MULTIPLICITY
2660 EV_P = ev_default_loop_ptr = &default_loop_struct; 3303 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2679 3322
2680 return ev_default_loop_ptr; 3323 return ev_default_loop_ptr;
2681} 3324}
2682 3325
2683void 3326void
2684ev_loop_fork (EV_P) EV_THROW 3327ev_loop_fork (EV_P) EV_NOEXCEPT
2685{ 3328{
2686 postfork = 1; /* must be in line with ev_default_fork */ 3329 postfork = 1;
2687} 3330}
2688 3331
2689/*****************************************************************************/ 3332/*****************************************************************************/
2690 3333
2691void 3334void
… …
2693{ 3336{
2694 EV_CB_INVOKE ((W)w, revents); 3337 EV_CB_INVOKE ((W)w, revents);
2695} 3338}
2696 3339
2697unsigned int 3340unsigned int
2698ev_pending_count (EV_P) EV_THROW 3341ev_pending_count (EV_P) EV_NOEXCEPT
2699{ 3342{
2700 int pri; 3343 int pri;
2701 unsigned int count = 0; 3344 unsigned int count = 0;
2702 3345
2703 for (pri = NUMPRI; pri--; ) 3346 for (pri = NUMPRI; pri--; )
2704 count += pendingcnt [pri]; 3347 count += pendingcnt [pri];
2705 3348
2706 return count; 3349 return count;
2707} 3350}
2708 3351
2709void noinline 3352noinline
3353void
2710ev_invoke_pending (EV_P) 3354ev_invoke_pending (EV_P)
2711{ 3355{
2712 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ 3356 pendingpri = NUMPRI;
3357
3358 do
3359 {
3360 --pendingpri;
3361
3362 /* pendingpri possibly gets modified in the inner loop */
2713 while (pendingcnt [pendingpri]) 3363 while (pendingcnt [pendingpri])
2714 { 3364 {
2715 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3365 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2716 3366
2717 p->w->pending = 0; 3367 p->w->pending = 0;
2718 EV_CB_INVOKE (p->w, p->events); 3368 EV_CB_INVOKE (p->w, p->events);
2719 EV_FREQUENT_CHECK; 3369 EV_FREQUENT_CHECK;
2720 } 3370 }
3371 }
3372 while (pendingpri);
2721} 3373}
2722 3374
2723#if EV_IDLE_ENABLE 3375#if EV_IDLE_ENABLE
2724/* make idle watchers pending. this handles the "call-idle */ 3376/* make idle watchers pending. this handles the "call-idle */
2725/* only when higher priorities are idle" logic */ 3377/* only when higher priorities are idle" logic */
… …
2783 } 3435 }
2784} 3436}
2785 3437
2786#if EV_PERIODIC_ENABLE 3438#if EV_PERIODIC_ENABLE
2787 3439
2788static void noinline 3440noinline
3441static void
2789periodic_recalc (EV_P_ ev_periodic *w) 3442periodic_recalc (EV_P_ ev_periodic *w)
2790{ 3443{
2791 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3444 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2792 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);
2793 3446
… …
2815{ 3468{
2816 EV_FREQUENT_CHECK; 3469 EV_FREQUENT_CHECK;
2817 3470
2818 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3471 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2819 { 3472 {
2820 int feed_count = 0;
2821
2822 do 3473 do
2823 { 3474 {
2824 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3475 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2825 3476
2826 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3477 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2853 } 3504 }
2854} 3505}
2855 3506
2856/* simply recalculate all periodics */ 3507/* simply recalculate all periodics */
2857/* 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? */
2858static void noinline ecb_cold 3509noinline ecb_cold
3510static void
2859periodics_reschedule (EV_P) 3511periodics_reschedule (EV_P)
2860{ 3512{
2861 int i; 3513 int i;
2862 3514
2863 /* adjust periodics after time jump */ 3515 /* adjust periodics after time jump */
… …
2876 reheap (periodics, periodiccnt); 3528 reheap (periodics, periodiccnt);
2877} 3529}
2878#endif 3530#endif
2879 3531
2880/* adjust all timers by a given offset */ 3532/* adjust all timers by a given offset */
2881static void noinline ecb_cold 3533noinline ecb_cold
3534static void
2882timers_reschedule (EV_P_ ev_tstamp adjust) 3535timers_reschedule (EV_P_ ev_tstamp adjust)
2883{ 3536{
2884 int i; 3537 int i;
2885 3538
2886 for (i = 0; i < timercnt; ++i) 3539 for (i = 0; i < timercnt; ++i)
… …
3085 backend_poll (EV_A_ waittime); 3738 backend_poll (EV_A_ waittime);
3086 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3739 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3087 3740
3088 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3741 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3089 3742
3743 ECB_MEMORY_FENCE_ACQUIRE;
3090 if (pipe_write_skipped) 3744 if (pipe_write_skipped)
3091 { 3745 {
3092 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3746 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3093 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3747 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3094 } 3748 }
… …
3132 3786
3133 return activecnt; 3787 return activecnt;
3134} 3788}
3135 3789
3136void 3790void
3137ev_break (EV_P_ int how) EV_THROW 3791ev_break (EV_P_ int how) EV_NOEXCEPT
3138{ 3792{
3139 loop_done = how; 3793 loop_done = how;
3140} 3794}
3141 3795
3142void 3796void
3143ev_ref (EV_P) EV_THROW 3797ev_ref (EV_P) EV_NOEXCEPT
3144{ 3798{
3145 ++activecnt; 3799 ++activecnt;
3146} 3800}
3147 3801
3148void 3802void
3149ev_unref (EV_P) EV_THROW 3803ev_unref (EV_P) EV_NOEXCEPT
3150{ 3804{
3151 --activecnt; 3805 --activecnt;
3152} 3806}
3153 3807
3154void 3808void
3155ev_now_update (EV_P) EV_THROW 3809ev_now_update (EV_P) EV_NOEXCEPT
3156{ 3810{
3157 time_update (EV_A_ 1e100); 3811 time_update (EV_A_ 1e100);
3158} 3812}
3159 3813
3160void 3814void
3161ev_suspend (EV_P) EV_THROW 3815ev_suspend (EV_P) EV_NOEXCEPT
3162{ 3816{
3163 ev_now_update (EV_A); 3817 ev_now_update (EV_A);
3164} 3818}
3165 3819
3166void 3820void
3167ev_resume (EV_P) EV_THROW 3821ev_resume (EV_P) EV_NOEXCEPT
3168{ 3822{
3169 ev_tstamp mn_prev = mn_now; 3823 ev_tstamp mn_prev = mn_now;
3170 3824
3171 ev_now_update (EV_A); 3825 ev_now_update (EV_A);
3172 timers_reschedule (EV_A_ mn_now - mn_prev); 3826 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3211 w->pending = 0; 3865 w->pending = 0;
3212 } 3866 }
3213} 3867}
3214 3868
3215int 3869int
3216ev_clear_pending (EV_P_ void *w) EV_THROW 3870ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3217{ 3871{
3218 W w_ = (W)w; 3872 W w_ = (W)w;
3219 int pending = w_->pending; 3873 int pending = w_->pending;
3220 3874
3221 if (expect_true (pending)) 3875 if (expect_true (pending))
… …
3253 w->active = 0; 3907 w->active = 0;
3254} 3908}
3255 3909
3256/*****************************************************************************/ 3910/*****************************************************************************/
3257 3911
3258void noinline 3912noinline
3913void
3259ev_io_start (EV_P_ ev_io *w) EV_THROW 3914ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3260{ 3915{
3261 int fd = w->fd; 3916 int fd = w->fd;
3262 3917
3263 if (expect_false (ev_is_active (w))) 3918 if (expect_false (ev_is_active (w)))
3264 return; 3919 return;
… …
3267 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))));
3268 3923
3269 EV_FREQUENT_CHECK; 3924 EV_FREQUENT_CHECK;
3270 3925
3271 ev_start (EV_A_ (W)w, 1); 3926 ev_start (EV_A_ (W)w, 1);
3272 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3927 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3273 wlist_add (&anfds[fd].head, (WL)w); 3928 wlist_add (&anfds[fd].head, (WL)w);
3274 3929
3275 /* common bug, apparently */ 3930 /* common bug, apparently */
3276 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));
3277 3932
… …
3279 w->events &= ~EV__IOFDSET; 3934 w->events &= ~EV__IOFDSET;
3280 3935
3281 EV_FREQUENT_CHECK; 3936 EV_FREQUENT_CHECK;
3282} 3937}
3283 3938
3284void noinline 3939noinline
3940void
3285ev_io_stop (EV_P_ ev_io *w) EV_THROW 3941ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3286{ 3942{
3287 clear_pending (EV_A_ (W)w); 3943 clear_pending (EV_A_ (W)w);
3288 if (expect_false (!ev_is_active (w))) 3944 if (expect_false (!ev_is_active (w)))
3289 return; 3945 return;
3290 3946
… …
3298 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3954 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3299 3955
3300 EV_FREQUENT_CHECK; 3956 EV_FREQUENT_CHECK;
3301} 3957}
3302 3958
3303void noinline 3959noinline
3960void
3304ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3961ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3305{ 3962{
3306 if (expect_false (ev_is_active (w))) 3963 if (expect_false (ev_is_active (w)))
3307 return; 3964 return;
3308 3965
3309 ev_at (w) += mn_now; 3966 ev_at (w) += mn_now;
… …
3312 3969
3313 EV_FREQUENT_CHECK; 3970 EV_FREQUENT_CHECK;
3314 3971
3315 ++timercnt; 3972 ++timercnt;
3316 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3973 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3317 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3974 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3318 ANHE_w (timers [ev_active (w)]) = (WT)w; 3975 ANHE_w (timers [ev_active (w)]) = (WT)w;
3319 ANHE_at_cache (timers [ev_active (w)]); 3976 ANHE_at_cache (timers [ev_active (w)]);
3320 upheap (timers, ev_active (w)); 3977 upheap (timers, ev_active (w));
3321 3978
3322 EV_FREQUENT_CHECK; 3979 EV_FREQUENT_CHECK;
3323 3980
3324 /*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));*/
3325} 3982}
3326 3983
3327void noinline 3984noinline
3985void
3328ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3986ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3329{ 3987{
3330 clear_pending (EV_A_ (W)w); 3988 clear_pending (EV_A_ (W)w);
3331 if (expect_false (!ev_is_active (w))) 3989 if (expect_false (!ev_is_active (w)))
3332 return; 3990 return;
3333 3991
… …
3352 ev_stop (EV_A_ (W)w); 4010 ev_stop (EV_A_ (W)w);
3353 4011
3354 EV_FREQUENT_CHECK; 4012 EV_FREQUENT_CHECK;
3355} 4013}
3356 4014
3357void noinline 4015noinline
4016void
3358ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4017ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3359{ 4018{
3360 EV_FREQUENT_CHECK; 4019 EV_FREQUENT_CHECK;
3361 4020
3362 clear_pending (EV_A_ (W)w); 4021 clear_pending (EV_A_ (W)w);
3363 4022
… …
3380 4039
3381 EV_FREQUENT_CHECK; 4040 EV_FREQUENT_CHECK;
3382} 4041}
3383 4042
3384ev_tstamp 4043ev_tstamp
3385ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4044ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3386{ 4045{
3387 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4046 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3388} 4047}
3389 4048
3390#if EV_PERIODIC_ENABLE 4049#if EV_PERIODIC_ENABLE
3391void noinline 4050noinline
4051void
3392ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4052ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3393{ 4053{
3394 if (expect_false (ev_is_active (w))) 4054 if (expect_false (ev_is_active (w)))
3395 return; 4055 return;
3396 4056
3397 if (w->reschedule_cb) 4057 if (w->reschedule_cb)
… …
3406 4066
3407 EV_FREQUENT_CHECK; 4067 EV_FREQUENT_CHECK;
3408 4068
3409 ++periodiccnt; 4069 ++periodiccnt;
3410 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4070 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3411 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4071 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3412 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4072 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3413 ANHE_at_cache (periodics [ev_active (w)]); 4073 ANHE_at_cache (periodics [ev_active (w)]);
3414 upheap (periodics, ev_active (w)); 4074 upheap (periodics, ev_active (w));
3415 4075
3416 EV_FREQUENT_CHECK; 4076 EV_FREQUENT_CHECK;
3417 4077
3418 /*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));*/
3419} 4079}
3420 4080
3421void noinline 4081noinline
4082void
3422ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4083ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3423{ 4084{
3424 clear_pending (EV_A_ (W)w); 4085 clear_pending (EV_A_ (W)w);
3425 if (expect_false (!ev_is_active (w))) 4086 if (expect_false (!ev_is_active (w)))
3426 return; 4087 return;
3427 4088
… …
3444 ev_stop (EV_A_ (W)w); 4105 ev_stop (EV_A_ (W)w);
3445 4106
3446 EV_FREQUENT_CHECK; 4107 EV_FREQUENT_CHECK;
3447} 4108}
3448 4109
3449void noinline 4110noinline
4111void
3450ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4112ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3451{ 4113{
3452 /* TODO: use adjustheap and recalculation */ 4114 /* TODO: use adjustheap and recalculation */
3453 ev_periodic_stop (EV_A_ w); 4115 ev_periodic_stop (EV_A_ w);
3454 ev_periodic_start (EV_A_ w); 4116 ev_periodic_start (EV_A_ w);
3455} 4117}
… …
3459# define SA_RESTART 0 4121# define SA_RESTART 0
3460#endif 4122#endif
3461 4123
3462#if EV_SIGNAL_ENABLE 4124#if EV_SIGNAL_ENABLE
3463 4125
3464void noinline 4126noinline
4127void
3465ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4128ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3466{ 4129{
3467 if (expect_false (ev_is_active (w))) 4130 if (expect_false (ev_is_active (w)))
3468 return; 4131 return;
3469 4132
3470 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));
… …
3472#if EV_MULTIPLICITY 4135#if EV_MULTIPLICITY
3473 assert (("libev: a signal must not be attached to two different loops", 4136 assert (("libev: a signal must not be attached to two different loops",
3474 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4137 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3475 4138
3476 signals [w->signum - 1].loop = EV_A; 4139 signals [w->signum - 1].loop = EV_A;
4140 ECB_MEMORY_FENCE_RELEASE;
3477#endif 4141#endif
3478 4142
3479 EV_FREQUENT_CHECK; 4143 EV_FREQUENT_CHECK;
3480 4144
3481#if EV_USE_SIGNALFD 4145#if EV_USE_SIGNALFD
… …
3540 } 4204 }
3541 4205
3542 EV_FREQUENT_CHECK; 4206 EV_FREQUENT_CHECK;
3543} 4207}
3544 4208
3545void noinline 4209noinline
4210void
3546ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4211ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3547{ 4212{
3548 clear_pending (EV_A_ (W)w); 4213 clear_pending (EV_A_ (W)w);
3549 if (expect_false (!ev_is_active (w))) 4214 if (expect_false (!ev_is_active (w)))
3550 return; 4215 return;
3551 4216
… …
3582#endif 4247#endif
3583 4248
3584#if EV_CHILD_ENABLE 4249#if EV_CHILD_ENABLE
3585 4250
3586void 4251void
3587ev_child_start (EV_P_ ev_child *w) EV_THROW 4252ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3588{ 4253{
3589#if EV_MULTIPLICITY 4254#if EV_MULTIPLICITY
3590 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));
3591#endif 4256#endif
3592 if (expect_false (ev_is_active (w))) 4257 if (expect_false (ev_is_active (w)))
… …
3599 4264
3600 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
3601} 4266}
3602 4267
3603void 4268void
3604ev_child_stop (EV_P_ ev_child *w) EV_THROW 4269ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3605{ 4270{
3606 clear_pending (EV_A_ (W)w); 4271 clear_pending (EV_A_ (W)w);
3607 if (expect_false (!ev_is_active (w))) 4272 if (expect_false (!ev_is_active (w)))
3608 return; 4273 return;
3609 4274
… …
3626 4291
3627#define DEF_STAT_INTERVAL 5.0074891 4292#define DEF_STAT_INTERVAL 5.0074891
3628#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4293#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3629#define MIN_STAT_INTERVAL 0.1074891 4294#define MIN_STAT_INTERVAL 0.1074891
3630 4295
3631static 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);
3632 4297
3633#if EV_USE_INOTIFY 4298#if EV_USE_INOTIFY
3634 4299
3635/* 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 */
3636# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4301# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3637 4302
3638static void noinline 4303noinline
4304static void
3639infy_add (EV_P_ ev_stat *w) 4305infy_add (EV_P_ ev_stat *w)
3640{ 4306{
3641 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 4307 w->wd = inotify_add_watch (fs_fd, w->path,
4308 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4309 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4310 | IN_DONT_FOLLOW | IN_MASK_ADD);
3642 4311
3643 if (w->wd >= 0) 4312 if (w->wd >= 0)
3644 { 4313 {
3645 struct statfs sfs; 4314 struct statfs sfs;
3646 4315
… …
3650 4319
3651 if (!fs_2625) 4320 if (!fs_2625)
3652 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4321 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3653 else if (!statfs (w->path, &sfs) 4322 else if (!statfs (w->path, &sfs)
3654 && (sfs.f_type == 0x1373 /* devfs */ 4323 && (sfs.f_type == 0x1373 /* devfs */
4324 || sfs.f_type == 0x4006 /* fat */
4325 || sfs.f_type == 0x4d44 /* msdos */
3655 || sfs.f_type == 0xEF53 /* ext2/3 */ 4326 || sfs.f_type == 0xEF53 /* ext2/3 */
4327 || sfs.f_type == 0x72b6 /* jffs2 */
4328 || sfs.f_type == 0x858458f6 /* ramfs */
4329 || sfs.f_type == 0x5346544e /* ntfs */
3656 || sfs.f_type == 0x3153464a /* jfs */ 4330 || sfs.f_type == 0x3153464a /* jfs */
4331 || sfs.f_type == 0x9123683e /* btrfs */
3657 || sfs.f_type == 0x52654973 /* reiser3 */ 4332 || sfs.f_type == 0x52654973 /* reiser3 */
3658 || sfs.f_type == 0x01021994 /* tempfs */ 4333 || sfs.f_type == 0x01021994 /* tmpfs */
3659 || sfs.f_type == 0x58465342 /* xfs */)) 4334 || sfs.f_type == 0x58465342 /* xfs */))
3660 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4335 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3661 else 4336 else
3662 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4337 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3663 } 4338 }
… …
3698 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4373 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3699 ev_timer_again (EV_A_ &w->timer); 4374 ev_timer_again (EV_A_ &w->timer);
3700 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4375 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3701} 4376}
3702 4377
3703static void noinline 4378noinline
4379static void
3704infy_del (EV_P_ ev_stat *w) 4380infy_del (EV_P_ ev_stat *w)
3705{ 4381{
3706 int slot; 4382 int slot;
3707 int wd = w->wd; 4383 int wd = w->wd;
3708 4384
… …
3715 4391
3716 /* remove this watcher, if others are watching it, they will rearm */ 4392 /* remove this watcher, if others are watching it, they will rearm */
3717 inotify_rm_watch (fs_fd, wd); 4393 inotify_rm_watch (fs_fd, wd);
3718} 4394}
3719 4395
3720static void noinline 4396noinline
4397static void
3721infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4398infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3722{ 4399{
3723 if (slot < 0) 4400 if (slot < 0)
3724 /* overflow, need to check for all hash slots */ 4401 /* overflow, need to check for all hash slots */
3725 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4402 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3761 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4438 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3762 ofs += sizeof (struct inotify_event) + ev->len; 4439 ofs += sizeof (struct inotify_event) + ev->len;
3763 } 4440 }
3764} 4441}
3765 4442
3766inline_size void ecb_cold 4443inline_size ecb_cold
4444void
3767ev_check_2625 (EV_P) 4445ev_check_2625 (EV_P)
3768{ 4446{
3769 /* kernels < 2.6.25 are borked 4447 /* kernels < 2.6.25 are borked
3770 * 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
3771 */ 4449 */
… …
3861#else 4539#else
3862# define EV_LSTAT(p,b) lstat (p, b) 4540# define EV_LSTAT(p,b) lstat (p, b)
3863#endif 4541#endif
3864 4542
3865void 4543void
3866ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4544ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3867{ 4545{
3868 if (lstat (w->path, &w->attr) < 0) 4546 if (lstat (w->path, &w->attr) < 0)
3869 w->attr.st_nlink = 0; 4547 w->attr.st_nlink = 0;
3870 else if (!w->attr.st_nlink) 4548 else if (!w->attr.st_nlink)
3871 w->attr.st_nlink = 1; 4549 w->attr.st_nlink = 1;
3872} 4550}
3873 4551
3874static void noinline 4552noinline
4553static void
3875stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4554stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3876{ 4555{
3877 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4556 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3878 4557
3879 ev_statdata prev = w->attr; 4558 ev_statdata prev = w->attr;
… …
3910 ev_feed_event (EV_A_ w, EV_STAT); 4589 ev_feed_event (EV_A_ w, EV_STAT);
3911 } 4590 }
3912} 4591}
3913 4592
3914void 4593void
3915ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4594ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3916{ 4595{
3917 if (expect_false (ev_is_active (w))) 4596 if (expect_false (ev_is_active (w)))
3918 return; 4597 return;
3919 4598
3920 ev_stat_stat (EV_A_ w); 4599 ev_stat_stat (EV_A_ w);
… …
3941 4620
3942 EV_FREQUENT_CHECK; 4621 EV_FREQUENT_CHECK;
3943} 4622}
3944 4623
3945void 4624void
3946ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4625ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
3947{ 4626{
3948 clear_pending (EV_A_ (W)w); 4627 clear_pending (EV_A_ (W)w);
3949 if (expect_false (!ev_is_active (w))) 4628 if (expect_false (!ev_is_active (w)))
3950 return; 4629 return;
3951 4630
… …
3967} 4646}
3968#endif 4647#endif
3969 4648
3970#if EV_IDLE_ENABLE 4649#if EV_IDLE_ENABLE
3971void 4650void
3972ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4651ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
3973{ 4652{
3974 if (expect_false (ev_is_active (w))) 4653 if (expect_false (ev_is_active (w)))
3975 return; 4654 return;
3976 4655
3977 pri_adjust (EV_A_ (W)w); 4656 pri_adjust (EV_A_ (W)w);
… …
3982 int active = ++idlecnt [ABSPRI (w)]; 4661 int active = ++idlecnt [ABSPRI (w)];
3983 4662
3984 ++idleall; 4663 ++idleall;
3985 ev_start (EV_A_ (W)w, active); 4664 ev_start (EV_A_ (W)w, active);
3986 4665
3987 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);
3988 idles [ABSPRI (w)][active - 1] = w; 4667 idles [ABSPRI (w)][active - 1] = w;
3989 } 4668 }
3990 4669
3991 EV_FREQUENT_CHECK; 4670 EV_FREQUENT_CHECK;
3992} 4671}
3993 4672
3994void 4673void
3995ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4674ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
3996{ 4675{
3997 clear_pending (EV_A_ (W)w); 4676 clear_pending (EV_A_ (W)w);
3998 if (expect_false (!ev_is_active (w))) 4677 if (expect_false (!ev_is_active (w)))
3999 return; 4678 return;
4000 4679
… …
4014} 4693}
4015#endif 4694#endif
4016 4695
4017#if EV_PREPARE_ENABLE 4696#if EV_PREPARE_ENABLE
4018void 4697void
4019ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4698ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4020{ 4699{
4021 if (expect_false (ev_is_active (w))) 4700 if (expect_false (ev_is_active (w)))
4022 return; 4701 return;
4023 4702
4024 EV_FREQUENT_CHECK; 4703 EV_FREQUENT_CHECK;
4025 4704
4026 ev_start (EV_A_ (W)w, ++preparecnt); 4705 ev_start (EV_A_ (W)w, ++preparecnt);
4027 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4706 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4028 prepares [preparecnt - 1] = w; 4707 prepares [preparecnt - 1] = w;
4029 4708
4030 EV_FREQUENT_CHECK; 4709 EV_FREQUENT_CHECK;
4031} 4710}
4032 4711
4033void 4712void
4034ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4713ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4035{ 4714{
4036 clear_pending (EV_A_ (W)w); 4715 clear_pending (EV_A_ (W)w);
4037 if (expect_false (!ev_is_active (w))) 4716 if (expect_false (!ev_is_active (w)))
4038 return; 4717 return;
4039 4718
… …
4052} 4731}
4053#endif 4732#endif
4054 4733
4055#if EV_CHECK_ENABLE 4734#if EV_CHECK_ENABLE
4056void 4735void
4057ev_check_start (EV_P_ ev_check *w) EV_THROW 4736ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4058{ 4737{
4059 if (expect_false (ev_is_active (w))) 4738 if (expect_false (ev_is_active (w)))
4060 return; 4739 return;
4061 4740
4062 EV_FREQUENT_CHECK; 4741 EV_FREQUENT_CHECK;
4063 4742
4064 ev_start (EV_A_ (W)w, ++checkcnt); 4743 ev_start (EV_A_ (W)w, ++checkcnt);
4065 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4744 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4066 checks [checkcnt - 1] = w; 4745 checks [checkcnt - 1] = w;
4067 4746
4068 EV_FREQUENT_CHECK; 4747 EV_FREQUENT_CHECK;
4069} 4748}
4070 4749
4071void 4750void
4072ev_check_stop (EV_P_ ev_check *w) EV_THROW 4751ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4073{ 4752{
4074 clear_pending (EV_A_ (W)w); 4753 clear_pending (EV_A_ (W)w);
4075 if (expect_false (!ev_is_active (w))) 4754 if (expect_false (!ev_is_active (w)))
4076 return; 4755 return;
4077 4756
… …
4089 EV_FREQUENT_CHECK; 4768 EV_FREQUENT_CHECK;
4090} 4769}
4091#endif 4770#endif
4092 4771
4093#if EV_EMBED_ENABLE 4772#if EV_EMBED_ENABLE
4094void noinline 4773noinline
4774void
4095ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4775ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4096{ 4776{
4097 ev_run (w->other, EVRUN_NOWAIT); 4777 ev_run (w->other, EVRUN_NOWAIT);
4098} 4778}
4099 4779
4100static void 4780static void
… …
4148 ev_idle_stop (EV_A_ idle); 4828 ev_idle_stop (EV_A_ idle);
4149} 4829}
4150#endif 4830#endif
4151 4831
4152void 4832void
4153ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4833ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4154{ 4834{
4155 if (expect_false (ev_is_active (w))) 4835 if (expect_false (ev_is_active (w)))
4156 return; 4836 return;
4157 4837
4158 { 4838 {
… …
4179 4859
4180 EV_FREQUENT_CHECK; 4860 EV_FREQUENT_CHECK;
4181} 4861}
4182 4862
4183void 4863void
4184ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4864ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4185{ 4865{
4186 clear_pending (EV_A_ (W)w); 4866 clear_pending (EV_A_ (W)w);
4187 if (expect_false (!ev_is_active (w))) 4867 if (expect_false (!ev_is_active (w)))
4188 return; 4868 return;
4189 4869
… …
4199} 4879}
4200#endif 4880#endif
4201 4881
4202#if EV_FORK_ENABLE 4882#if EV_FORK_ENABLE
4203void 4883void
4204ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4884ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4205{ 4885{
4206 if (expect_false (ev_is_active (w))) 4886 if (expect_false (ev_is_active (w)))
4207 return; 4887 return;
4208 4888
4209 EV_FREQUENT_CHECK; 4889 EV_FREQUENT_CHECK;
4210 4890
4211 ev_start (EV_A_ (W)w, ++forkcnt); 4891 ev_start (EV_A_ (W)w, ++forkcnt);
4212 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4892 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4213 forks [forkcnt - 1] = w; 4893 forks [forkcnt - 1] = w;
4214 4894
4215 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
4216} 4896}
4217 4897
4218void 4898void
4219ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4899ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4220{ 4900{
4221 clear_pending (EV_A_ (W)w); 4901 clear_pending (EV_A_ (W)w);
4222 if (expect_false (!ev_is_active (w))) 4902 if (expect_false (!ev_is_active (w)))
4223 return; 4903 return;
4224 4904
… …
4237} 4917}
4238#endif 4918#endif
4239 4919
4240#if EV_CLEANUP_ENABLE 4920#if EV_CLEANUP_ENABLE
4241void 4921void
4242ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4922ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4243{ 4923{
4244 if (expect_false (ev_is_active (w))) 4924 if (expect_false (ev_is_active (w)))
4245 return; 4925 return;
4246 4926
4247 EV_FREQUENT_CHECK; 4927 EV_FREQUENT_CHECK;
4248 4928
4249 ev_start (EV_A_ (W)w, ++cleanupcnt); 4929 ev_start (EV_A_ (W)w, ++cleanupcnt);
4250 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4930 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4251 cleanups [cleanupcnt - 1] = w; 4931 cleanups [cleanupcnt - 1] = w;
4252 4932
4253 /* cleanup watchers should never keep a refcount on the loop */ 4933 /* cleanup watchers should never keep a refcount on the loop */
4254 ev_unref (EV_A); 4934 ev_unref (EV_A);
4255 EV_FREQUENT_CHECK; 4935 EV_FREQUENT_CHECK;
4256} 4936}
4257 4937
4258void 4938void
4259ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4939ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4260{ 4940{
4261 clear_pending (EV_A_ (W)w); 4941 clear_pending (EV_A_ (W)w);
4262 if (expect_false (!ev_is_active (w))) 4942 if (expect_false (!ev_is_active (w)))
4263 return; 4943 return;
4264 4944
… …
4278} 4958}
4279#endif 4959#endif
4280 4960
4281#if EV_ASYNC_ENABLE 4961#if EV_ASYNC_ENABLE
4282void 4962void
4283ev_async_start (EV_P_ ev_async *w) EV_THROW 4963ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4284{ 4964{
4285 if (expect_false (ev_is_active (w))) 4965 if (expect_false (ev_is_active (w)))
4286 return; 4966 return;
4287 4967
4288 w->sent = 0; 4968 w->sent = 0;
… …
4290 evpipe_init (EV_A); 4970 evpipe_init (EV_A);
4291 4971
4292 EV_FREQUENT_CHECK; 4972 EV_FREQUENT_CHECK;
4293 4973
4294 ev_start (EV_A_ (W)w, ++asynccnt); 4974 ev_start (EV_A_ (W)w, ++asynccnt);
4295 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4975 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4296 asyncs [asynccnt - 1] = w; 4976 asyncs [asynccnt - 1] = w;
4297 4977
4298 EV_FREQUENT_CHECK; 4978 EV_FREQUENT_CHECK;
4299} 4979}
4300 4980
4301void 4981void
4302ev_async_stop (EV_P_ ev_async *w) EV_THROW 4982ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4303{ 4983{
4304 clear_pending (EV_A_ (W)w); 4984 clear_pending (EV_A_ (W)w);
4305 if (expect_false (!ev_is_active (w))) 4985 if (expect_false (!ev_is_active (w)))
4306 return; 4986 return;
4307 4987
… …
4318 4998
4319 EV_FREQUENT_CHECK; 4999 EV_FREQUENT_CHECK;
4320} 5000}
4321 5001
4322void 5002void
4323ev_async_send (EV_P_ ev_async *w) EV_THROW 5003ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4324{ 5004{
4325 w->sent = 1; 5005 w->sent = 1;
4326 evpipe_write (EV_A_ &async_pending); 5006 evpipe_write (EV_A_ &async_pending);
4327} 5007}
4328#endif 5008#endif
… …
4365 5045
4366 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));
4367} 5047}
4368 5048
4369void 5049void
4370ev_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
4371{ 5051{
4372 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));
4373
4374 if (expect_false (!once))
4375 {
4376 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4377 return;
4378 }
4379 5053
4380 once->cb = cb; 5054 once->cb = cb;
4381 once->arg = arg; 5055 once->arg = arg;
4382 5056
4383 ev_init (&once->io, once_cb_io); 5057 ev_init (&once->io, once_cb_io);
… …
4396} 5070}
4397 5071
4398/*****************************************************************************/ 5072/*****************************************************************************/
4399 5073
4400#if EV_WALK_ENABLE 5074#if EV_WALK_ENABLE
4401void ecb_cold 5075ecb_cold
5076void
4402ev_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
4403{ 5078{
4404 int i, j; 5079 int i, j;
4405 ev_watcher_list *wl, *wn; 5080 ev_watcher_list *wl, *wn;
4406 5081
4407 if (types & (EV_IO | EV_EMBED)) 5082 if (types & (EV_IO | EV_EMBED))

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