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

Comparing libev/ev.c (file contents):
Revision 1.428 by root, Tue May 8 15:44:09 2012 UTC vs.
Revision 1.491 by root, Thu Jun 20 23:14:53 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
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# define EV_USE_LINUXAIO 0
331#endif
332
312#ifndef EV_USE_INOTIFY 333#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 334# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 335# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 336# else
316# define EV_USE_INOTIFY 0 337# define EV_USE_INOTIFY 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 376# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 377#endif
357 378
358#ifndef EV_HEAP_CACHE_AT 379#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 380# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
381#endif
382
383#ifdef __ANDROID__
384/* supposedly, android doesn't typedef fd_mask */
385# undef EV_USE_SELECT
386# define EV_USE_SELECT 0
387/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
388# undef EV_USE_CLOCK_SYSCALL
389# define EV_USE_CLOCK_SYSCALL 0
390#endif
391
392/* aix's poll.h seems to cause lots of trouble */
393#ifdef _AIX
394/* AIX has a completely broken poll.h header */
395# undef EV_USE_POLL
396# define EV_USE_POLL 0
397#endif
398
399#if EV_USE_LINUXAIO
400# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
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
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
… …
1018#else 1613#else
1019 1614
1020#include <float.h> 1615#include <float.h>
1021 1616
1022/* a floor() replacement function, should be independent of ev_tstamp type */ 1617/* a floor() replacement function, should be independent of ev_tstamp type */
1618noinline
1023static ev_tstamp noinline 1619static ev_tstamp
1024ev_floor (ev_tstamp v) 1620ev_floor (ev_tstamp v)
1025{ 1621{
1026 /* the choice of shift factor is not terribly important */ 1622 /* the choice of shift factor is not terribly important */
1027#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1623#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1028 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1624 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1060 1656
1061#ifdef __linux 1657#ifdef __linux
1062# include <sys/utsname.h> 1658# include <sys/utsname.h>
1063#endif 1659#endif
1064 1660
1065static unsigned int noinline ecb_cold 1661noinline ecb_cold
1662static unsigned int
1066ev_linux_version (void) 1663ev_linux_version (void)
1067{ 1664{
1068#ifdef __linux 1665#ifdef __linux
1069 unsigned int v = 0; 1666 unsigned int v = 0;
1070 struct utsname buf; 1667 struct utsname buf;
… …
1099} 1696}
1100 1697
1101/*****************************************************************************/ 1698/*****************************************************************************/
1102 1699
1103#if EV_AVOID_STDIO 1700#if EV_AVOID_STDIO
1104static void noinline ecb_cold 1701noinline ecb_cold
1702static void
1105ev_printerr (const char *msg) 1703ev_printerr (const char *msg)
1106{ 1704{
1107 write (STDERR_FILENO, msg, strlen (msg)); 1705 write (STDERR_FILENO, msg, strlen (msg));
1108} 1706}
1109#endif 1707#endif
1110 1708
1111static void (*syserr_cb)(const char *msg) EV_THROW; 1709static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1112 1710
1113void ecb_cold 1711ecb_cold
1712void
1114ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW 1713ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1115{ 1714{
1116 syserr_cb = cb; 1715 syserr_cb = cb;
1117} 1716}
1118 1717
1119static void noinline ecb_cold 1718noinline ecb_cold
1719static void
1120ev_syserr (const char *msg) 1720ev_syserr (const char *msg)
1121{ 1721{
1122 if (!msg) 1722 if (!msg)
1123 msg = "(libev) system error"; 1723 msg = "(libev) system error";
1124 1724
… …
1137 abort (); 1737 abort ();
1138 } 1738 }
1139} 1739}
1140 1740
1141static void * 1741static void *
1142ev_realloc_emul (void *ptr, long size) 1742ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1143{ 1743{
1144#if __GLIBC__
1145 return realloc (ptr, size);
1146#else
1147 /* some systems, notably openbsd and darwin, fail to properly 1744 /* some systems, notably openbsd and darwin, fail to properly
1148 * implement realloc (x, 0) (as required by both ansi c-89 and 1745 * implement realloc (x, 0) (as required by both ansi c-89 and
1149 * the single unix specification, so work around them here. 1746 * the single unix specification, so work around them here.
1747 * recently, also (at least) fedora and debian started breaking it,
1748 * despite documenting it otherwise.
1150 */ 1749 */
1151 1750
1152 if (size) 1751 if (size)
1153 return realloc (ptr, size); 1752 return realloc (ptr, size);
1154 1753
1155 free (ptr); 1754 free (ptr);
1156 return 0; 1755 return 0;
1157#endif
1158} 1756}
1159 1757
1160static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1758static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1161 1759
1162void ecb_cold 1760ecb_cold
1761void
1163ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW 1762ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1164{ 1763{
1165 alloc = cb; 1764 alloc = cb;
1166} 1765}
1167 1766
1168inline_speed void * 1767inline_speed void *
… …
1195typedef struct 1794typedef struct
1196{ 1795{
1197 WL head; 1796 WL head;
1198 unsigned char events; /* the events watched for */ 1797 unsigned char events; /* the events watched for */
1199 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1798 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 */ 1799 unsigned char emask; /* some backends store the actual kernel mask in here */
1201 unsigned char unused; 1800 unsigned char unused;
1202#if EV_USE_EPOLL 1801#if EV_USE_EPOLL
1203 unsigned int egen; /* generation counter to counter epoll bugs */ 1802 unsigned int egen; /* generation counter to counter epoll bugs */
1204#endif 1803#endif
1205#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1804#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1285 1884
1286/*****************************************************************************/ 1885/*****************************************************************************/
1287 1886
1288#ifndef EV_HAVE_EV_TIME 1887#ifndef EV_HAVE_EV_TIME
1289ev_tstamp 1888ev_tstamp
1290ev_time (void) EV_THROW 1889ev_time (void) EV_NOEXCEPT
1291{ 1890{
1292#if EV_USE_REALTIME 1891#if EV_USE_REALTIME
1293 if (expect_true (have_realtime)) 1892 if (expect_true (have_realtime))
1294 { 1893 {
1295 struct timespec ts; 1894 struct timespec ts;
… …
1319 return ev_time (); 1918 return ev_time ();
1320} 1919}
1321 1920
1322#if EV_MULTIPLICITY 1921#if EV_MULTIPLICITY
1323ev_tstamp 1922ev_tstamp
1324ev_now (EV_P) EV_THROW 1923ev_now (EV_P) EV_NOEXCEPT
1325{ 1924{
1326 return ev_rt_now; 1925 return ev_rt_now;
1327} 1926}
1328#endif 1927#endif
1329 1928
1330void 1929void
1331ev_sleep (ev_tstamp delay) EV_THROW 1930ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1332{ 1931{
1333 if (delay > 0.) 1932 if (delay > 0.)
1334 { 1933 {
1335#if EV_USE_NANOSLEEP 1934#if EV_USE_NANOSLEEP
1336 struct timespec ts; 1935 struct timespec ts;
1337 1936
1338 EV_TS_SET (ts, delay); 1937 EV_TS_SET (ts, delay);
1339 nanosleep (&ts, 0); 1938 nanosleep (&ts, 0);
1340#elif defined _WIN32 1939#elif defined _WIN32
1940 /* maybe this should round up, as ms is very low resolution */
1941 /* compared to select (µs) or nanosleep (ns) */
1341 Sleep ((unsigned long)(delay * 1e3)); 1942 Sleep ((unsigned long)(delay * 1e3));
1342#else 1943#else
1343 struct timeval tv; 1944 struct timeval tv;
1344 1945
1345 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1946 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1376 } 1977 }
1377 1978
1378 return ncur; 1979 return ncur;
1379} 1980}
1380 1981
1381static void * noinline ecb_cold 1982noinline ecb_cold
1983static void *
1382array_realloc (int elem, void *base, int *cur, int cnt) 1984array_realloc (int elem, void *base, int *cur, int cnt)
1383{ 1985{
1384 *cur = array_nextsize (elem, *cur, cnt); 1986 *cur = array_nextsize (elem, *cur, cnt);
1385 return ev_realloc (base, elem * *cur); 1987 return ev_realloc (base, elem * *cur);
1386} 1988}
1387 1989
1990#define array_needsize_noinit(base,count)
1991
1388#define array_init_zero(base,count) \ 1992#define array_needsize_zerofill(base,count) \
1389 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1993 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1390 1994
1391#define array_needsize(type,base,cur,cnt,init) \ 1995#define array_needsize(type,base,cur,cnt,init) \
1392 if (expect_false ((cnt) > (cur))) \ 1996 if (expect_false ((cnt) > (cur))) \
1393 { \ 1997 { \
1394 int ecb_unused ocur_ = (cur); \ 1998 ecb_unused int ocur_ = (cur); \
1395 (base) = (type *)array_realloc \ 1999 (base) = (type *)array_realloc \
1396 (sizeof (type), (base), &(cur), (cnt)); \ 2000 (sizeof (type), (base), &(cur), (cnt)); \
1397 init ((base) + (ocur_), (cur) - ocur_); \ 2001 init ((base) + (ocur_), (cur) - ocur_); \
1398 } 2002 }
1399 2003
… …
1411 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2015 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1412 2016
1413/*****************************************************************************/ 2017/*****************************************************************************/
1414 2018
1415/* dummy callback for pending events */ 2019/* dummy callback for pending events */
1416static void noinline 2020noinline
2021static void
1417pendingcb (EV_P_ ev_prepare *w, int revents) 2022pendingcb (EV_P_ ev_prepare *w, int revents)
1418{ 2023{
1419} 2024}
1420 2025
1421void noinline 2026noinline
2027void
1422ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2028ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1423{ 2029{
1424 W w_ = (W)w; 2030 W w_ = (W)w;
1425 int pri = ABSPRI (w_); 2031 int pri = ABSPRI (w_);
1426 2032
1427 if (expect_false (w_->pending)) 2033 if (expect_false (w_->pending))
1428 pendings [pri][w_->pending - 1].events |= revents; 2034 pendings [pri][w_->pending - 1].events |= revents;
1429 else 2035 else
1430 { 2036 {
1431 w_->pending = ++pendingcnt [pri]; 2037 w_->pending = ++pendingcnt [pri];
1432 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2038 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1433 pendings [pri][w_->pending - 1].w = w_; 2039 pendings [pri][w_->pending - 1].w = w_;
1434 pendings [pri][w_->pending - 1].events = revents; 2040 pendings [pri][w_->pending - 1].events = revents;
1435 } 2041 }
1436 2042
1437 pendingpri = NUMPRI - 1; 2043 pendingpri = NUMPRI - 1;
1438} 2044}
1439 2045
1440inline_speed void 2046inline_speed void
1441feed_reverse (EV_P_ W w) 2047feed_reverse (EV_P_ W w)
1442{ 2048{
1443 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2049 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1444 rfeeds [rfeedcnt++] = w; 2050 rfeeds [rfeedcnt++] = w;
1445} 2051}
1446 2052
1447inline_size void 2053inline_size void
1448feed_reverse_done (EV_P_ int revents) 2054feed_reverse_done (EV_P_ int revents)
… …
1488 if (expect_true (!anfd->reify)) 2094 if (expect_true (!anfd->reify))
1489 fd_event_nocheck (EV_A_ fd, revents); 2095 fd_event_nocheck (EV_A_ fd, revents);
1490} 2096}
1491 2097
1492void 2098void
1493ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2099ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1494{ 2100{
1495 if (fd >= 0 && fd < anfdmax) 2101 if (fd >= 0 && fd < anfdmax)
1496 fd_event_nocheck (EV_A_ fd, revents); 2102 fd_event_nocheck (EV_A_ fd, revents);
1497} 2103}
1498 2104
… …
1556 2162
1557 fdchangecnt = 0; 2163 fdchangecnt = 0;
1558} 2164}
1559 2165
1560/* something about the given fd changed */ 2166/* something about the given fd changed */
1561inline_size void 2167inline_size
2168void
1562fd_change (EV_P_ int fd, int flags) 2169fd_change (EV_P_ int fd, int flags)
1563{ 2170{
1564 unsigned char reify = anfds [fd].reify; 2171 unsigned char reify = anfds [fd].reify;
1565 anfds [fd].reify |= flags; 2172 anfds [fd].reify |= flags;
1566 2173
1567 if (expect_true (!reify)) 2174 if (expect_true (!reify))
1568 { 2175 {
1569 ++fdchangecnt; 2176 ++fdchangecnt;
1570 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2177 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1571 fdchanges [fdchangecnt - 1] = fd; 2178 fdchanges [fdchangecnt - 1] = fd;
1572 } 2179 }
1573} 2180}
1574 2181
1575/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2182/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1576inline_speed void ecb_cold 2183inline_speed ecb_cold void
1577fd_kill (EV_P_ int fd) 2184fd_kill (EV_P_ int fd)
1578{ 2185{
1579 ev_io *w; 2186 ev_io *w;
1580 2187
1581 while ((w = (ev_io *)anfds [fd].head)) 2188 while ((w = (ev_io *)anfds [fd].head))
… …
1584 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2191 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1585 } 2192 }
1586} 2193}
1587 2194
1588/* check whether the given fd is actually valid, for error recovery */ 2195/* check whether the given fd is actually valid, for error recovery */
1589inline_size int ecb_cold 2196inline_size ecb_cold int
1590fd_valid (int fd) 2197fd_valid (int fd)
1591{ 2198{
1592#ifdef _WIN32 2199#ifdef _WIN32
1593 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2200 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1594#else 2201#else
1595 return fcntl (fd, F_GETFD) != -1; 2202 return fcntl (fd, F_GETFD) != -1;
1596#endif 2203#endif
1597} 2204}
1598 2205
1599/* called on EBADF to verify fds */ 2206/* called on EBADF to verify fds */
1600static void noinline ecb_cold 2207noinline ecb_cold
2208static void
1601fd_ebadf (EV_P) 2209fd_ebadf (EV_P)
1602{ 2210{
1603 int fd; 2211 int fd;
1604 2212
1605 for (fd = 0; fd < anfdmax; ++fd) 2213 for (fd = 0; fd < anfdmax; ++fd)
… …
1607 if (!fd_valid (fd) && errno == EBADF) 2215 if (!fd_valid (fd) && errno == EBADF)
1608 fd_kill (EV_A_ fd); 2216 fd_kill (EV_A_ fd);
1609} 2217}
1610 2218
1611/* called on ENOMEM in select/poll to kill some fds and retry */ 2219/* called on ENOMEM in select/poll to kill some fds and retry */
1612static void noinline ecb_cold 2220noinline ecb_cold
2221static void
1613fd_enomem (EV_P) 2222fd_enomem (EV_P)
1614{ 2223{
1615 int fd; 2224 int fd;
1616 2225
1617 for (fd = anfdmax; fd--; ) 2226 for (fd = anfdmax; fd--; )
… …
1621 break; 2230 break;
1622 } 2231 }
1623} 2232}
1624 2233
1625/* usually called after fork if backend needs to re-arm all fds from scratch */ 2234/* usually called after fork if backend needs to re-arm all fds from scratch */
1626static void noinline 2235noinline
2236static void
1627fd_rearm_all (EV_P) 2237fd_rearm_all (EV_P)
1628{ 2238{
1629 int fd; 2239 int fd;
1630 2240
1631 for (fd = 0; fd < anfdmax; ++fd) 2241 for (fd = 0; fd < anfdmax; ++fd)
… …
1812 2422
1813/*****************************************************************************/ 2423/*****************************************************************************/
1814 2424
1815#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2425#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1816 2426
1817static void noinline ecb_cold 2427noinline ecb_cold
2428static void
1818evpipe_init (EV_P) 2429evpipe_init (EV_P)
1819{ 2430{
1820 if (!ev_is_active (&pipe_w)) 2431 if (!ev_is_active (&pipe_w))
1821 { 2432 {
2433 int fds [2];
2434
1822# if EV_USE_EVENTFD 2435# if EV_USE_EVENTFD
2436 fds [0] = -1;
1823 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2437 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1824 if (evfd < 0 && errno == EINVAL) 2438 if (fds [1] < 0 && errno == EINVAL)
1825 evfd = eventfd (0, 0); 2439 fds [1] = eventfd (0, 0);
1826 2440
1827 if (evfd >= 0) 2441 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 2442# endif
1835 { 2443 {
1836 while (pipe (evpipe)) 2444 while (pipe (fds))
1837 ev_syserr ("(libev) error creating signal/async pipe"); 2445 ev_syserr ("(libev) error creating signal/async pipe");
1838 2446
1839 fd_intern (evpipe [0]); 2447 fd_intern (fds [0]);
1840 fd_intern (evpipe [1]);
1841 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1842 } 2448 }
1843 2449
2450 evpipe [0] = fds [0];
2451
2452 if (evpipe [1] < 0)
2453 evpipe [1] = fds [1]; /* first call, set write fd */
2454 else
2455 {
2456 /* on subsequent calls, do not change evpipe [1] */
2457 /* so that evpipe_write can always rely on its value. */
2458 /* this branch does not do anything sensible on windows, */
2459 /* so must not be executed on windows */
2460
2461 dup2 (fds [1], evpipe [1]);
2462 close (fds [1]);
2463 }
2464
2465 fd_intern (evpipe [1]);
2466
2467 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1844 ev_io_start (EV_A_ &pipe_w); 2468 ev_io_start (EV_A_ &pipe_w);
1845 ev_unref (EV_A); /* watcher should not keep loop alive */ 2469 ev_unref (EV_A); /* watcher should not keep loop alive */
1846 } 2470 }
1847} 2471}
1848 2472
… …
1853 2477
1854 if (expect_true (*flag)) 2478 if (expect_true (*flag))
1855 return; 2479 return;
1856 2480
1857 *flag = 1; 2481 *flag = 1;
1858
1859 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2482 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1860 2483
1861 pipe_write_skipped = 1; 2484 pipe_write_skipped = 1;
1862 2485
1863 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ 2486 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1864 2487
1865 if (pipe_write_wanted) 2488 if (pipe_write_wanted)
1866 { 2489 {
1867 int old_errno; 2490 int old_errno;
1868 2491
1869 pipe_write_skipped = 0; /* just an optimisation, no fence needed */ 2492 pipe_write_skipped = 0;
2493 ECB_MEMORY_FENCE_RELEASE;
1870 2494
1871 old_errno = errno; /* save errno because write will clobber it */ 2495 old_errno = errno; /* save errno because write will clobber it */
1872 2496
1873#if EV_USE_EVENTFD 2497#if EV_USE_EVENTFD
1874 if (evfd >= 0) 2498 if (evpipe [0] < 0)
1875 { 2499 {
1876 uint64_t counter = 1; 2500 uint64_t counter = 1;
1877 write (evfd, &counter, sizeof (uint64_t)); 2501 write (evpipe [1], &counter, sizeof (uint64_t));
1878 } 2502 }
1879 else 2503 else
1880#endif 2504#endif
1881 { 2505 {
1882#ifdef _WIN32 2506#ifdef _WIN32
1883 WSABUF buf; 2507 WSABUF buf;
1884 DWORD sent; 2508 DWORD sent;
1885 buf.buf = &buf; 2509 buf.buf = (char *)&buf;
1886 buf.len = 1; 2510 buf.len = 1;
1887 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2511 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1888#else 2512#else
1889 write (evpipe [1], &(evpipe [1]), 1); 2513 write (evpipe [1], &(evpipe [1]), 1);
1890#endif 2514#endif
… …
1902 int i; 2526 int i;
1903 2527
1904 if (revents & EV_READ) 2528 if (revents & EV_READ)
1905 { 2529 {
1906#if EV_USE_EVENTFD 2530#if EV_USE_EVENTFD
1907 if (evfd >= 0) 2531 if (evpipe [0] < 0)
1908 { 2532 {
1909 uint64_t counter; 2533 uint64_t counter;
1910 read (evfd, &counter, sizeof (uint64_t)); 2534 read (evpipe [1], &counter, sizeof (uint64_t));
1911 } 2535 }
1912 else 2536 else
1913#endif 2537#endif
1914 { 2538 {
1915 char dummy[4]; 2539 char dummy[4];
1916#ifdef _WIN32 2540#ifdef _WIN32
1917 WSABUF buf; 2541 WSABUF buf;
1918 DWORD recvd; 2542 DWORD recvd;
2543 DWORD flags = 0;
1919 buf.buf = dummy; 2544 buf.buf = dummy;
1920 buf.len = sizeof (dummy); 2545 buf.len = sizeof (dummy);
1921 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0); 2546 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1922#else 2547#else
1923 read (evpipe [0], &dummy, sizeof (dummy)); 2548 read (evpipe [0], &dummy, sizeof (dummy));
1924#endif 2549#endif
1925 } 2550 }
1926 } 2551 }
… …
1932#if EV_SIGNAL_ENABLE 2557#if EV_SIGNAL_ENABLE
1933 if (sig_pending) 2558 if (sig_pending)
1934 { 2559 {
1935 sig_pending = 0; 2560 sig_pending = 0;
1936 2561
1937 ECB_MEMORY_FENCE_RELEASE; 2562 ECB_MEMORY_FENCE;
1938 2563
1939 for (i = EV_NSIG - 1; i--; ) 2564 for (i = EV_NSIG - 1; i--; )
1940 if (expect_false (signals [i].pending)) 2565 if (expect_false (signals [i].pending))
1941 ev_feed_signal_event (EV_A_ i + 1); 2566 ev_feed_signal_event (EV_A_ i + 1);
1942 } 2567 }
… …
1945#if EV_ASYNC_ENABLE 2570#if EV_ASYNC_ENABLE
1946 if (async_pending) 2571 if (async_pending)
1947 { 2572 {
1948 async_pending = 0; 2573 async_pending = 0;
1949 2574
1950 ECB_MEMORY_FENCE_RELEASE; 2575 ECB_MEMORY_FENCE;
1951 2576
1952 for (i = asynccnt; i--; ) 2577 for (i = asynccnt; i--; )
1953 if (asyncs [i]->sent) 2578 if (asyncs [i]->sent)
1954 { 2579 {
1955 asyncs [i]->sent = 0; 2580 asyncs [i]->sent = 0;
2581 ECB_MEMORY_FENCE_RELEASE;
1956 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2582 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1957 } 2583 }
1958 } 2584 }
1959#endif 2585#endif
1960} 2586}
1961 2587
1962/*****************************************************************************/ 2588/*****************************************************************************/
1963 2589
1964void 2590void
1965ev_feed_signal (int signum) EV_THROW 2591ev_feed_signal (int signum) EV_NOEXCEPT
1966{ 2592{
1967#if EV_MULTIPLICITY 2593#if EV_MULTIPLICITY
2594 EV_P;
2595 ECB_MEMORY_FENCE_ACQUIRE;
1968 EV_P = signals [signum - 1].loop; 2596 EV_A = signals [signum - 1].loop;
1969 2597
1970 if (!EV_A) 2598 if (!EV_A)
1971 return; 2599 return;
1972#endif 2600#endif
1973 2601
1974 if (!ev_active (&pipe_w))
1975 return;
1976
1977 signals [signum - 1].pending = 1; 2602 signals [signum - 1].pending = 1;
1978 evpipe_write (EV_A_ &sig_pending); 2603 evpipe_write (EV_A_ &sig_pending);
1979} 2604}
1980 2605
1981static void 2606static void
… …
1986#endif 2611#endif
1987 2612
1988 ev_feed_signal (signum); 2613 ev_feed_signal (signum);
1989} 2614}
1990 2615
1991void noinline 2616noinline
2617void
1992ev_feed_signal_event (EV_P_ int signum) EV_THROW 2618ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
1993{ 2619{
1994 WL w; 2620 WL w;
1995 2621
1996 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2622 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1997 return; 2623 return;
1998 2624
1999 --signum; 2625 --signum;
2000 2626
2001#if EV_MULTIPLICITY 2627#if EV_MULTIPLICITY
… …
2005 if (expect_false (signals [signum].loop != EV_A)) 2631 if (expect_false (signals [signum].loop != EV_A))
2006 return; 2632 return;
2007#endif 2633#endif
2008 2634
2009 signals [signum].pending = 0; 2635 signals [signum].pending = 0;
2636 ECB_MEMORY_FENCE_RELEASE;
2010 2637
2011 for (w = signals [signum].head; w; w = w->next) 2638 for (w = signals [signum].head; w; w = w->next)
2012 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2639 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
2013} 2640}
2014 2641
… …
2102# include "ev_port.c" 2729# include "ev_port.c"
2103#endif 2730#endif
2104#if EV_USE_KQUEUE 2731#if EV_USE_KQUEUE
2105# include "ev_kqueue.c" 2732# include "ev_kqueue.c"
2106#endif 2733#endif
2734#if EV_USE_LINUXAIO
2735# include "ev_linuxaio.c"
2736#endif
2107#if EV_USE_EPOLL 2737#if EV_USE_EPOLL
2108# include "ev_epoll.c" 2738# include "ev_epoll.c"
2109#endif 2739#endif
2110#if EV_USE_POLL 2740#if EV_USE_POLL
2111# include "ev_poll.c" 2741# include "ev_poll.c"
2112#endif 2742#endif
2113#if EV_USE_SELECT 2743#if EV_USE_SELECT
2114# include "ev_select.c" 2744# include "ev_select.c"
2115#endif 2745#endif
2116 2746
2117int ecb_cold 2747ecb_cold int
2118ev_version_major (void) EV_THROW 2748ev_version_major (void) EV_NOEXCEPT
2119{ 2749{
2120 return EV_VERSION_MAJOR; 2750 return EV_VERSION_MAJOR;
2121} 2751}
2122 2752
2123int ecb_cold 2753ecb_cold int
2124ev_version_minor (void) EV_THROW 2754ev_version_minor (void) EV_NOEXCEPT
2125{ 2755{
2126 return EV_VERSION_MINOR; 2756 return EV_VERSION_MINOR;
2127} 2757}
2128 2758
2129/* return true if we are running with elevated privileges and should ignore env variables */ 2759/* return true if we are running with elevated privileges and should ignore env variables */
2130int inline_size ecb_cold 2760inline_size ecb_cold int
2131enable_secure (void) 2761enable_secure (void)
2132{ 2762{
2133#ifdef _WIN32 2763#ifdef _WIN32
2134 return 0; 2764 return 0;
2135#else 2765#else
2136 return getuid () != geteuid () 2766 return getuid () != geteuid ()
2137 || getgid () != getegid (); 2767 || getgid () != getegid ();
2138#endif 2768#endif
2139} 2769}
2140 2770
2141unsigned int ecb_cold 2771ecb_cold
2772unsigned int
2142ev_supported_backends (void) EV_THROW 2773ev_supported_backends (void) EV_NOEXCEPT
2143{ 2774{
2144 unsigned int flags = 0; 2775 unsigned int flags = 0;
2145 2776
2146 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2777 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2147 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2778 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2148 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2779 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2780 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2149 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2781 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2150 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2782 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2151 2783
2152 return flags; 2784 return flags;
2153} 2785}
2154 2786
2155unsigned int ecb_cold 2787ecb_cold
2788unsigned int
2156ev_recommended_backends (void) EV_THROW 2789ev_recommended_backends (void) EV_NOEXCEPT
2157{ 2790{
2158 unsigned int flags = ev_supported_backends (); 2791 unsigned int flags = ev_supported_backends ();
2159 2792
2160#ifndef __NetBSD__ 2793#ifndef __NetBSD__
2161 /* kqueue is borked on everything but netbsd apparently */ 2794 /* kqueue is borked on everything but netbsd apparently */
… …
2169#endif 2802#endif
2170#ifdef __FreeBSD__ 2803#ifdef __FreeBSD__
2171 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2804 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2172#endif 2805#endif
2173 2806
2807 /* TODO: linuxaio is very experimental */
2808 flags &= ~EVBACKEND_LINUXAIO;
2809
2174 return flags; 2810 return flags;
2175} 2811}
2176 2812
2177unsigned int ecb_cold 2813ecb_cold
2814unsigned int
2178ev_embeddable_backends (void) EV_THROW 2815ev_embeddable_backends (void) EV_NOEXCEPT
2179{ 2816{
2180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2817 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2181 2818
2182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2819 /* 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 */ 2820 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2185 2822
2186 return flags; 2823 return flags;
2187} 2824}
2188 2825
2189unsigned int 2826unsigned int
2190ev_backend (EV_P) EV_THROW 2827ev_backend (EV_P) EV_NOEXCEPT
2191{ 2828{
2192 return backend; 2829 return backend;
2193} 2830}
2194 2831
2195#if EV_FEATURE_API 2832#if EV_FEATURE_API
2196unsigned int 2833unsigned int
2197ev_iteration (EV_P) EV_THROW 2834ev_iteration (EV_P) EV_NOEXCEPT
2198{ 2835{
2199 return loop_count; 2836 return loop_count;
2200} 2837}
2201 2838
2202unsigned int 2839unsigned int
2203ev_depth (EV_P) EV_THROW 2840ev_depth (EV_P) EV_NOEXCEPT
2204{ 2841{
2205 return loop_depth; 2842 return loop_depth;
2206} 2843}
2207 2844
2208void 2845void
2209ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2846ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2210{ 2847{
2211 io_blocktime = interval; 2848 io_blocktime = interval;
2212} 2849}
2213 2850
2214void 2851void
2215ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2852ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2216{ 2853{
2217 timeout_blocktime = interval; 2854 timeout_blocktime = interval;
2218} 2855}
2219 2856
2220void 2857void
2221ev_set_userdata (EV_P_ void *data) EV_THROW 2858ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2222{ 2859{
2223 userdata = data; 2860 userdata = data;
2224} 2861}
2225 2862
2226void * 2863void *
2227ev_userdata (EV_P) EV_THROW 2864ev_userdata (EV_P) EV_NOEXCEPT
2228{ 2865{
2229 return userdata; 2866 return userdata;
2230} 2867}
2231 2868
2232void 2869void
2233ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2870ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2234{ 2871{
2235 invoke_cb = invoke_pending_cb; 2872 invoke_cb = invoke_pending_cb;
2236} 2873}
2237 2874
2238void 2875void
2239ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2876ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2240{ 2877{
2241 release_cb = release; 2878 release_cb = release;
2242 acquire_cb = acquire; 2879 acquire_cb = acquire;
2243} 2880}
2244#endif 2881#endif
2245 2882
2246/* initialise a loop structure, must be zero-initialised */ 2883/* initialise a loop structure, must be zero-initialised */
2247static void noinline ecb_cold 2884noinline ecb_cold
2885static void
2248loop_init (EV_P_ unsigned int flags) EV_THROW 2886loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2249{ 2887{
2250 if (!backend) 2888 if (!backend)
2251 { 2889 {
2252 origflags = flags; 2890 origflags = flags;
2253 2891
… …
2298#if EV_ASYNC_ENABLE 2936#if EV_ASYNC_ENABLE
2299 async_pending = 0; 2937 async_pending = 0;
2300#endif 2938#endif
2301 pipe_write_skipped = 0; 2939 pipe_write_skipped = 0;
2302 pipe_write_wanted = 0; 2940 pipe_write_wanted = 0;
2941 evpipe [0] = -1;
2942 evpipe [1] = -1;
2303#if EV_USE_INOTIFY 2943#if EV_USE_INOTIFY
2304 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2944 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2305#endif 2945#endif
2306#if EV_USE_SIGNALFD 2946#if EV_USE_SIGNALFD
2307 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2947 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2309 2949
2310 if (!(flags & EVBACKEND_MASK)) 2950 if (!(flags & EVBACKEND_MASK))
2311 flags |= ev_recommended_backends (); 2951 flags |= ev_recommended_backends ();
2312 2952
2313#if EV_USE_IOCP 2953#if EV_USE_IOCP
2314 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2954 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2315#endif 2955#endif
2316#if EV_USE_PORT 2956#if EV_USE_PORT
2317 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2957 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2318#endif 2958#endif
2319#if EV_USE_KQUEUE 2959#if EV_USE_KQUEUE
2320 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2960 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2961#endif
2962#if EV_USE_LINUXAIO
2963 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2321#endif 2964#endif
2322#if EV_USE_EPOLL 2965#if EV_USE_EPOLL
2323 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2966 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2324#endif 2967#endif
2325#if EV_USE_POLL 2968#if EV_USE_POLL
2326 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2969 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2327#endif 2970#endif
2328#if EV_USE_SELECT 2971#if EV_USE_SELECT
2329 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2972 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2330#endif 2973#endif
2331 2974
2332 ev_prepare_init (&pending_w, pendingcb); 2975 ev_prepare_init (&pending_w, pendingcb);
2333 2976
2334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2977#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2337#endif 2980#endif
2338 } 2981 }
2339} 2982}
2340 2983
2341/* free up a loop structure */ 2984/* free up a loop structure */
2342void ecb_cold 2985ecb_cold
2986void
2343ev_loop_destroy (EV_P) 2987ev_loop_destroy (EV_P)
2344{ 2988{
2345 int i; 2989 int i;
2346 2990
2347#if EV_MULTIPLICITY 2991#if EV_MULTIPLICITY
… …
2358 EV_INVOKE_PENDING; 3002 EV_INVOKE_PENDING;
2359 } 3003 }
2360#endif 3004#endif
2361 3005
2362#if EV_CHILD_ENABLE 3006#if EV_CHILD_ENABLE
2363 if (ev_is_active (&childev)) 3007 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2364 { 3008 {
2365 ev_ref (EV_A); /* child watcher */ 3009 ev_ref (EV_A); /* child watcher */
2366 ev_signal_stop (EV_A_ &childev); 3010 ev_signal_stop (EV_A_ &childev);
2367 } 3011 }
2368#endif 3012#endif
… …
2370 if (ev_is_active (&pipe_w)) 3014 if (ev_is_active (&pipe_w))
2371 { 3015 {
2372 /*ev_ref (EV_A);*/ 3016 /*ev_ref (EV_A);*/
2373 /*ev_io_stop (EV_A_ &pipe_w);*/ 3017 /*ev_io_stop (EV_A_ &pipe_w);*/
2374 3018
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]); 3019 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2383 EV_WIN32_CLOSE_FD (evpipe [1]); 3020 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2384 }
2385 } 3021 }
2386 3022
2387#if EV_USE_SIGNALFD 3023#if EV_USE_SIGNALFD
2388 if (ev_is_active (&sigfd_w)) 3024 if (ev_is_active (&sigfd_w))
2389 close (sigfd); 3025 close (sigfd);
… …
2396 3032
2397 if (backend_fd >= 0) 3033 if (backend_fd >= 0)
2398 close (backend_fd); 3034 close (backend_fd);
2399 3035
2400#if EV_USE_IOCP 3036#if EV_USE_IOCP
2401 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3037 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2402#endif 3038#endif
2403#if EV_USE_PORT 3039#if EV_USE_PORT
2404 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3040 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2405#endif 3041#endif
2406#if EV_USE_KQUEUE 3042#if EV_USE_KQUEUE
2407 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3043 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3044#endif
3045#if EV_USE_LINUXAIO
3046 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2408#endif 3047#endif
2409#if EV_USE_EPOLL 3048#if EV_USE_EPOLL
2410 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3049 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2411#endif 3050#endif
2412#if EV_USE_POLL 3051#if EV_USE_POLL
2413 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3052 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2414#endif 3053#endif
2415#if EV_USE_SELECT 3054#if EV_USE_SELECT
2416 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3055 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2417#endif 3056#endif
2418 3057
2419 for (i = NUMPRI; i--; ) 3058 for (i = NUMPRI; i--; )
2420 { 3059 {
2421 array_free (pending, [i]); 3060 array_free (pending, [i]);
… …
2463 3102
2464inline_size void 3103inline_size void
2465loop_fork (EV_P) 3104loop_fork (EV_P)
2466{ 3105{
2467#if EV_USE_PORT 3106#if EV_USE_PORT
2468 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3107 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2469#endif 3108#endif
2470#if EV_USE_KQUEUE 3109#if EV_USE_KQUEUE
2471 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3110 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3111#endif
3112#if EV_USE_LINUXAIO
3113 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2472#endif 3114#endif
2473#if EV_USE_EPOLL 3115#if EV_USE_EPOLL
2474 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3116 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2475#endif 3117#endif
2476#if EV_USE_INOTIFY 3118#if EV_USE_INOTIFY
2477 infy_fork (EV_A); 3119 infy_fork (EV_A);
2478#endif 3120#endif
2479 3121
3122#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2480 if (ev_is_active (&pipe_w)) 3123 if (ev_is_active (&pipe_w) && postfork != 2)
2481 { 3124 {
2482 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3125 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2483 3126
2484 ev_ref (EV_A); 3127 ev_ref (EV_A);
2485 ev_io_stop (EV_A_ &pipe_w); 3128 ev_io_stop (EV_A_ &pipe_w);
2486 3129
2487#if EV_USE_EVENTFD
2488 if (evfd >= 0)
2489 close (evfd);
2490#endif
2491
2492 if (evpipe [0] >= 0) 3130 if (evpipe [0] >= 0)
2493 {
2494 EV_WIN32_CLOSE_FD (evpipe [0]); 3131 EV_WIN32_CLOSE_FD (evpipe [0]);
2495 EV_WIN32_CLOSE_FD (evpipe [1]);
2496 }
2497 3132
2498#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2499 evpipe_init (EV_A); 3133 evpipe_init (EV_A);
2500 /* now iterate over everything, in case we missed something */ 3134 /* iterate over everything, in case we missed something before */
2501 pipecb (EV_A_ &pipe_w, EV_READ); 3135 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2502#endif
2503 } 3136 }
3137#endif
2504 3138
2505 postfork = 0; 3139 postfork = 0;
2506} 3140}
2507 3141
2508#if EV_MULTIPLICITY 3142#if EV_MULTIPLICITY
2509 3143
3144ecb_cold
2510struct ev_loop * ecb_cold 3145struct ev_loop *
2511ev_loop_new (unsigned int flags) EV_THROW 3146ev_loop_new (unsigned int flags) EV_NOEXCEPT
2512{ 3147{
2513 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3148 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2514 3149
2515 memset (EV_A, 0, sizeof (struct ev_loop)); 3150 memset (EV_A, 0, sizeof (struct ev_loop));
2516 loop_init (EV_A_ flags); 3151 loop_init (EV_A_ flags);
… …
2523} 3158}
2524 3159
2525#endif /* multiplicity */ 3160#endif /* multiplicity */
2526 3161
2527#if EV_VERIFY 3162#if EV_VERIFY
2528static void noinline ecb_cold 3163noinline ecb_cold
3164static void
2529verify_watcher (EV_P_ W w) 3165verify_watcher (EV_P_ W w)
2530{ 3166{
2531 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3167 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2532 3168
2533 if (w->pending) 3169 if (w->pending)
2534 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3170 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2535} 3171}
2536 3172
2537static void noinline ecb_cold 3173noinline ecb_cold
3174static void
2538verify_heap (EV_P_ ANHE *heap, int N) 3175verify_heap (EV_P_ ANHE *heap, int N)
2539{ 3176{
2540 int i; 3177 int i;
2541 3178
2542 for (i = HEAP0; i < N + HEAP0; ++i) 3179 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2547 3184
2548 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3185 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2549 } 3186 }
2550} 3187}
2551 3188
2552static void noinline ecb_cold 3189noinline ecb_cold
3190static void
2553array_verify (EV_P_ W *ws, int cnt) 3191array_verify (EV_P_ W *ws, int cnt)
2554{ 3192{
2555 while (cnt--) 3193 while (cnt--)
2556 { 3194 {
2557 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3195 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2560} 3198}
2561#endif 3199#endif
2562 3200
2563#if EV_FEATURE_API 3201#if EV_FEATURE_API
2564void ecb_cold 3202void ecb_cold
2565ev_verify (EV_P) EV_THROW 3203ev_verify (EV_P) EV_NOEXCEPT
2566{ 3204{
2567#if EV_VERIFY 3205#if EV_VERIFY
2568 int i, j; 3206 int i;
2569 WL w, w2; 3207 WL w, w2;
2570 3208
2571 assert (activecnt >= -1); 3209 assert (activecnt >= -1);
2572 3210
2573 assert (fdchangemax >= fdchangecnt); 3211 assert (fdchangemax >= fdchangecnt);
2574 for (i = 0; i < fdchangecnt; ++i) 3212 for (i = 0; i < fdchangecnt; ++i)
2575 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3213 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2576 3214
2577 assert (anfdmax >= 0); 3215 assert (anfdmax >= 0);
2578 for (i = j = 0; i < anfdmax; ++i) 3216 for (i = 0; i < anfdmax; ++i)
3217 {
3218 int j = 0;
3219
2579 for (w = w2 = anfds [i].head; w; w = w->next) 3220 for (w = w2 = anfds [i].head; w; w = w->next)
2580 { 3221 {
2581 verify_watcher (EV_A_ (W)w); 3222 verify_watcher (EV_A_ (W)w);
2582 3223
2583 if (j++ & 1) 3224 if (j++ & 1)
2584 { 3225 {
2585 assert (("libev: io watcher list contains a loop", w != w2)); 3226 assert (("libev: io watcher list contains a loop", w != w2));
2586 w2 = w2->next; 3227 w2 = w2->next;
2587 } 3228 }
2588 3229
2589 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3230 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2590 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3231 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2591 } 3232 }
3233 }
2592 3234
2593 assert (timermax >= timercnt); 3235 assert (timermax >= timercnt);
2594 verify_heap (EV_A_ timers, timercnt); 3236 verify_heap (EV_A_ timers, timercnt);
2595 3237
2596#if EV_PERIODIC_ENABLE 3238#if EV_PERIODIC_ENABLE
… …
2642#endif 3284#endif
2643} 3285}
2644#endif 3286#endif
2645 3287
2646#if EV_MULTIPLICITY 3288#if EV_MULTIPLICITY
3289ecb_cold
2647struct ev_loop * ecb_cold 3290struct ev_loop *
2648#else 3291#else
2649int 3292int
2650#endif 3293#endif
2651ev_default_loop (unsigned int flags) EV_THROW 3294ev_default_loop (unsigned int flags) EV_NOEXCEPT
2652{ 3295{
2653 if (!ev_default_loop_ptr) 3296 if (!ev_default_loop_ptr)
2654 { 3297 {
2655#if EV_MULTIPLICITY 3298#if EV_MULTIPLICITY
2656 EV_P = ev_default_loop_ptr = &default_loop_struct; 3299 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2675 3318
2676 return ev_default_loop_ptr; 3319 return ev_default_loop_ptr;
2677} 3320}
2678 3321
2679void 3322void
2680ev_loop_fork (EV_P) EV_THROW 3323ev_loop_fork (EV_P) EV_NOEXCEPT
2681{ 3324{
2682 postfork = 1; /* must be in line with ev_default_fork */ 3325 postfork = 1;
2683} 3326}
2684 3327
2685/*****************************************************************************/ 3328/*****************************************************************************/
2686 3329
2687void 3330void
… …
2689{ 3332{
2690 EV_CB_INVOKE ((W)w, revents); 3333 EV_CB_INVOKE ((W)w, revents);
2691} 3334}
2692 3335
2693unsigned int 3336unsigned int
2694ev_pending_count (EV_P) EV_THROW 3337ev_pending_count (EV_P) EV_NOEXCEPT
2695{ 3338{
2696 int pri; 3339 int pri;
2697 unsigned int count = 0; 3340 unsigned int count = 0;
2698 3341
2699 for (pri = NUMPRI; pri--; ) 3342 for (pri = NUMPRI; pri--; )
2700 count += pendingcnt [pri]; 3343 count += pendingcnt [pri];
2701 3344
2702 return count; 3345 return count;
2703} 3346}
2704 3347
2705void noinline 3348noinline
3349void
2706ev_invoke_pending (EV_P) 3350ev_invoke_pending (EV_P)
2707{ 3351{
2708 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ 3352 pendingpri = NUMPRI;
3353
3354 do
3355 {
3356 --pendingpri;
3357
3358 /* pendingpri possibly gets modified in the inner loop */
2709 while (pendingcnt [pendingpri]) 3359 while (pendingcnt [pendingpri])
2710 { 3360 {
2711 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3361 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2712 3362
2713 p->w->pending = 0; 3363 p->w->pending = 0;
2714 EV_CB_INVOKE (p->w, p->events); 3364 EV_CB_INVOKE (p->w, p->events);
2715 EV_FREQUENT_CHECK; 3365 EV_FREQUENT_CHECK;
2716 } 3366 }
3367 }
3368 while (pendingpri);
2717} 3369}
2718 3370
2719#if EV_IDLE_ENABLE 3371#if EV_IDLE_ENABLE
2720/* make idle watchers pending. this handles the "call-idle */ 3372/* make idle watchers pending. this handles the "call-idle */
2721/* only when higher priorities are idle" logic */ 3373/* only when higher priorities are idle" logic */
… …
2779 } 3431 }
2780} 3432}
2781 3433
2782#if EV_PERIODIC_ENABLE 3434#if EV_PERIODIC_ENABLE
2783 3435
2784static void noinline 3436noinline
3437static void
2785periodic_recalc (EV_P_ ev_periodic *w) 3438periodic_recalc (EV_P_ ev_periodic *w)
2786{ 3439{
2787 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3440 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2788 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3441 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2789 3442
… …
2811{ 3464{
2812 EV_FREQUENT_CHECK; 3465 EV_FREQUENT_CHECK;
2813 3466
2814 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3467 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2815 { 3468 {
2816 int feed_count = 0;
2817
2818 do 3469 do
2819 { 3470 {
2820 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3471 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2821 3472
2822 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3473 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2849 } 3500 }
2850} 3501}
2851 3502
2852/* simply recalculate all periodics */ 3503/* simply recalculate all periodics */
2853/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3504/* TODO: maybe ensure that at least one event happens when jumping forward? */
2854static void noinline ecb_cold 3505noinline ecb_cold
3506static void
2855periodics_reschedule (EV_P) 3507periodics_reschedule (EV_P)
2856{ 3508{
2857 int i; 3509 int i;
2858 3510
2859 /* adjust periodics after time jump */ 3511 /* adjust periodics after time jump */
… …
2872 reheap (periodics, periodiccnt); 3524 reheap (periodics, periodiccnt);
2873} 3525}
2874#endif 3526#endif
2875 3527
2876/* adjust all timers by a given offset */ 3528/* adjust all timers by a given offset */
2877static void noinline ecb_cold 3529noinline ecb_cold
3530static void
2878timers_reschedule (EV_P_ ev_tstamp adjust) 3531timers_reschedule (EV_P_ ev_tstamp adjust)
2879{ 3532{
2880 int i; 3533 int i;
2881 3534
2882 for (i = 0; i < timercnt; ++i) 3535 for (i = 0; i < timercnt; ++i)
… …
3081 backend_poll (EV_A_ waittime); 3734 backend_poll (EV_A_ waittime);
3082 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3735 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3083 3736
3084 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3737 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3085 3738
3739 ECB_MEMORY_FENCE_ACQUIRE;
3086 if (pipe_write_skipped) 3740 if (pipe_write_skipped)
3087 { 3741 {
3088 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3742 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3089 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3743 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3090 } 3744 }
… …
3128 3782
3129 return activecnt; 3783 return activecnt;
3130} 3784}
3131 3785
3132void 3786void
3133ev_break (EV_P_ int how) EV_THROW 3787ev_break (EV_P_ int how) EV_NOEXCEPT
3134{ 3788{
3135 loop_done = how; 3789 loop_done = how;
3136} 3790}
3137 3791
3138void 3792void
3139ev_ref (EV_P) EV_THROW 3793ev_ref (EV_P) EV_NOEXCEPT
3140{ 3794{
3141 ++activecnt; 3795 ++activecnt;
3142} 3796}
3143 3797
3144void 3798void
3145ev_unref (EV_P) EV_THROW 3799ev_unref (EV_P) EV_NOEXCEPT
3146{ 3800{
3147 --activecnt; 3801 --activecnt;
3148} 3802}
3149 3803
3150void 3804void
3151ev_now_update (EV_P) EV_THROW 3805ev_now_update (EV_P) EV_NOEXCEPT
3152{ 3806{
3153 time_update (EV_A_ 1e100); 3807 time_update (EV_A_ 1e100);
3154} 3808}
3155 3809
3156void 3810void
3157ev_suspend (EV_P) EV_THROW 3811ev_suspend (EV_P) EV_NOEXCEPT
3158{ 3812{
3159 ev_now_update (EV_A); 3813 ev_now_update (EV_A);
3160} 3814}
3161 3815
3162void 3816void
3163ev_resume (EV_P) EV_THROW 3817ev_resume (EV_P) EV_NOEXCEPT
3164{ 3818{
3165 ev_tstamp mn_prev = mn_now; 3819 ev_tstamp mn_prev = mn_now;
3166 3820
3167 ev_now_update (EV_A); 3821 ev_now_update (EV_A);
3168 timers_reschedule (EV_A_ mn_now - mn_prev); 3822 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3207 w->pending = 0; 3861 w->pending = 0;
3208 } 3862 }
3209} 3863}
3210 3864
3211int 3865int
3212ev_clear_pending (EV_P_ void *w) EV_THROW 3866ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3213{ 3867{
3214 W w_ = (W)w; 3868 W w_ = (W)w;
3215 int pending = w_->pending; 3869 int pending = w_->pending;
3216 3870
3217 if (expect_true (pending)) 3871 if (expect_true (pending))
… …
3249 w->active = 0; 3903 w->active = 0;
3250} 3904}
3251 3905
3252/*****************************************************************************/ 3906/*****************************************************************************/
3253 3907
3254void noinline 3908noinline
3909void
3255ev_io_start (EV_P_ ev_io *w) EV_THROW 3910ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3256{ 3911{
3257 int fd = w->fd; 3912 int fd = w->fd;
3258 3913
3259 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
3260 return; 3915 return;
… …
3263 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3918 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3264 3919
3265 EV_FREQUENT_CHECK; 3920 EV_FREQUENT_CHECK;
3266 3921
3267 ev_start (EV_A_ (W)w, 1); 3922 ev_start (EV_A_ (W)w, 1);
3268 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3923 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3269 wlist_add (&anfds[fd].head, (WL)w); 3924 wlist_add (&anfds[fd].head, (WL)w);
3270 3925
3271 /* common bug, apparently */ 3926 /* common bug, apparently */
3272 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3927 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3273 3928
… …
3275 w->events &= ~EV__IOFDSET; 3930 w->events &= ~EV__IOFDSET;
3276 3931
3277 EV_FREQUENT_CHECK; 3932 EV_FREQUENT_CHECK;
3278} 3933}
3279 3934
3280void noinline 3935noinline
3936void
3281ev_io_stop (EV_P_ ev_io *w) EV_THROW 3937ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3282{ 3938{
3283 clear_pending (EV_A_ (W)w); 3939 clear_pending (EV_A_ (W)w);
3284 if (expect_false (!ev_is_active (w))) 3940 if (expect_false (!ev_is_active (w)))
3285 return; 3941 return;
3286 3942
… …
3294 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3950 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3295 3951
3296 EV_FREQUENT_CHECK; 3952 EV_FREQUENT_CHECK;
3297} 3953}
3298 3954
3299void noinline 3955noinline
3956void
3300ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3957ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3301{ 3958{
3302 if (expect_false (ev_is_active (w))) 3959 if (expect_false (ev_is_active (w)))
3303 return; 3960 return;
3304 3961
3305 ev_at (w) += mn_now; 3962 ev_at (w) += mn_now;
… …
3308 3965
3309 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3310 3967
3311 ++timercnt; 3968 ++timercnt;
3312 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3969 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3313 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3970 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3314 ANHE_w (timers [ev_active (w)]) = (WT)w; 3971 ANHE_w (timers [ev_active (w)]) = (WT)w;
3315 ANHE_at_cache (timers [ev_active (w)]); 3972 ANHE_at_cache (timers [ev_active (w)]);
3316 upheap (timers, ev_active (w)); 3973 upheap (timers, ev_active (w));
3317 3974
3318 EV_FREQUENT_CHECK; 3975 EV_FREQUENT_CHECK;
3319 3976
3320 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3977 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3321} 3978}
3322 3979
3323void noinline 3980noinline
3981void
3324ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3982ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3325{ 3983{
3326 clear_pending (EV_A_ (W)w); 3984 clear_pending (EV_A_ (W)w);
3327 if (expect_false (!ev_is_active (w))) 3985 if (expect_false (!ev_is_active (w)))
3328 return; 3986 return;
3329 3987
… …
3348 ev_stop (EV_A_ (W)w); 4006 ev_stop (EV_A_ (W)w);
3349 4007
3350 EV_FREQUENT_CHECK; 4008 EV_FREQUENT_CHECK;
3351} 4009}
3352 4010
3353void noinline 4011noinline
4012void
3354ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4013ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3355{ 4014{
3356 EV_FREQUENT_CHECK; 4015 EV_FREQUENT_CHECK;
3357 4016
3358 clear_pending (EV_A_ (W)w); 4017 clear_pending (EV_A_ (W)w);
3359 4018
… …
3376 4035
3377 EV_FREQUENT_CHECK; 4036 EV_FREQUENT_CHECK;
3378} 4037}
3379 4038
3380ev_tstamp 4039ev_tstamp
3381ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4040ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3382{ 4041{
3383 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4042 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3384} 4043}
3385 4044
3386#if EV_PERIODIC_ENABLE 4045#if EV_PERIODIC_ENABLE
3387void noinline 4046noinline
4047void
3388ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4048ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3389{ 4049{
3390 if (expect_false (ev_is_active (w))) 4050 if (expect_false (ev_is_active (w)))
3391 return; 4051 return;
3392 4052
3393 if (w->reschedule_cb) 4053 if (w->reschedule_cb)
… …
3402 4062
3403 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3404 4064
3405 ++periodiccnt; 4065 ++periodiccnt;
3406 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4066 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3407 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4067 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3408 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4068 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3409 ANHE_at_cache (periodics [ev_active (w)]); 4069 ANHE_at_cache (periodics [ev_active (w)]);
3410 upheap (periodics, ev_active (w)); 4070 upheap (periodics, ev_active (w));
3411 4071
3412 EV_FREQUENT_CHECK; 4072 EV_FREQUENT_CHECK;
3413 4073
3414 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4074 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3415} 4075}
3416 4076
3417void noinline 4077noinline
4078void
3418ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4079ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3419{ 4080{
3420 clear_pending (EV_A_ (W)w); 4081 clear_pending (EV_A_ (W)w);
3421 if (expect_false (!ev_is_active (w))) 4082 if (expect_false (!ev_is_active (w)))
3422 return; 4083 return;
3423 4084
… …
3440 ev_stop (EV_A_ (W)w); 4101 ev_stop (EV_A_ (W)w);
3441 4102
3442 EV_FREQUENT_CHECK; 4103 EV_FREQUENT_CHECK;
3443} 4104}
3444 4105
3445void noinline 4106noinline
4107void
3446ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4108ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3447{ 4109{
3448 /* TODO: use adjustheap and recalculation */ 4110 /* TODO: use adjustheap and recalculation */
3449 ev_periodic_stop (EV_A_ w); 4111 ev_periodic_stop (EV_A_ w);
3450 ev_periodic_start (EV_A_ w); 4112 ev_periodic_start (EV_A_ w);
3451} 4113}
… …
3455# define SA_RESTART 0 4117# define SA_RESTART 0
3456#endif 4118#endif
3457 4119
3458#if EV_SIGNAL_ENABLE 4120#if EV_SIGNAL_ENABLE
3459 4121
3460void noinline 4122noinline
4123void
3461ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4124ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3462{ 4125{
3463 if (expect_false (ev_is_active (w))) 4126 if (expect_false (ev_is_active (w)))
3464 return; 4127 return;
3465 4128
3466 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4129 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3468#if EV_MULTIPLICITY 4131#if EV_MULTIPLICITY
3469 assert (("libev: a signal must not be attached to two different loops", 4132 assert (("libev: a signal must not be attached to two different loops",
3470 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4133 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3471 4134
3472 signals [w->signum - 1].loop = EV_A; 4135 signals [w->signum - 1].loop = EV_A;
4136 ECB_MEMORY_FENCE_RELEASE;
3473#endif 4137#endif
3474 4138
3475 EV_FREQUENT_CHECK; 4139 EV_FREQUENT_CHECK;
3476 4140
3477#if EV_USE_SIGNALFD 4141#if EV_USE_SIGNALFD
… …
3536 } 4200 }
3537 4201
3538 EV_FREQUENT_CHECK; 4202 EV_FREQUENT_CHECK;
3539} 4203}
3540 4204
3541void noinline 4205noinline
4206void
3542ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4207ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3543{ 4208{
3544 clear_pending (EV_A_ (W)w); 4209 clear_pending (EV_A_ (W)w);
3545 if (expect_false (!ev_is_active (w))) 4210 if (expect_false (!ev_is_active (w)))
3546 return; 4211 return;
3547 4212
… …
3578#endif 4243#endif
3579 4244
3580#if EV_CHILD_ENABLE 4245#if EV_CHILD_ENABLE
3581 4246
3582void 4247void
3583ev_child_start (EV_P_ ev_child *w) EV_THROW 4248ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3584{ 4249{
3585#if EV_MULTIPLICITY 4250#if EV_MULTIPLICITY
3586 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4251 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3587#endif 4252#endif
3588 if (expect_false (ev_is_active (w))) 4253 if (expect_false (ev_is_active (w)))
… …
3595 4260
3596 EV_FREQUENT_CHECK; 4261 EV_FREQUENT_CHECK;
3597} 4262}
3598 4263
3599void 4264void
3600ev_child_stop (EV_P_ ev_child *w) EV_THROW 4265ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3601{ 4266{
3602 clear_pending (EV_A_ (W)w); 4267 clear_pending (EV_A_ (W)w);
3603 if (expect_false (!ev_is_active (w))) 4268 if (expect_false (!ev_is_active (w)))
3604 return; 4269 return;
3605 4270
… …
3622 4287
3623#define DEF_STAT_INTERVAL 5.0074891 4288#define DEF_STAT_INTERVAL 5.0074891
3624#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4289#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3625#define MIN_STAT_INTERVAL 0.1074891 4290#define MIN_STAT_INTERVAL 0.1074891
3626 4291
3627static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4292noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3628 4293
3629#if EV_USE_INOTIFY 4294#if EV_USE_INOTIFY
3630 4295
3631/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4296/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3632# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4297# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3633 4298
3634static void noinline 4299noinline
4300static void
3635infy_add (EV_P_ ev_stat *w) 4301infy_add (EV_P_ ev_stat *w)
3636{ 4302{
3637 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); 4303 w->wd = inotify_add_watch (fs_fd, w->path,
4304 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4305 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4306 | IN_DONT_FOLLOW | IN_MASK_ADD);
3638 4307
3639 if (w->wd >= 0) 4308 if (w->wd >= 0)
3640 { 4309 {
3641 struct statfs sfs; 4310 struct statfs sfs;
3642 4311
… …
3646 4315
3647 if (!fs_2625) 4316 if (!fs_2625)
3648 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4317 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3649 else if (!statfs (w->path, &sfs) 4318 else if (!statfs (w->path, &sfs)
3650 && (sfs.f_type == 0x1373 /* devfs */ 4319 && (sfs.f_type == 0x1373 /* devfs */
4320 || sfs.f_type == 0x4006 /* fat */
4321 || sfs.f_type == 0x4d44 /* msdos */
3651 || sfs.f_type == 0xEF53 /* ext2/3 */ 4322 || sfs.f_type == 0xEF53 /* ext2/3 */
4323 || sfs.f_type == 0x72b6 /* jffs2 */
4324 || sfs.f_type == 0x858458f6 /* ramfs */
4325 || sfs.f_type == 0x5346544e /* ntfs */
3652 || sfs.f_type == 0x3153464a /* jfs */ 4326 || sfs.f_type == 0x3153464a /* jfs */
4327 || sfs.f_type == 0x9123683e /* btrfs */
3653 || sfs.f_type == 0x52654973 /* reiser3 */ 4328 || sfs.f_type == 0x52654973 /* reiser3 */
3654 || sfs.f_type == 0x01021994 /* tempfs */ 4329 || sfs.f_type == 0x01021994 /* tmpfs */
3655 || sfs.f_type == 0x58465342 /* xfs */)) 4330 || sfs.f_type == 0x58465342 /* xfs */))
3656 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4331 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3657 else 4332 else
3658 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4333 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3659 } 4334 }
… …
3694 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4369 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3695 ev_timer_again (EV_A_ &w->timer); 4370 ev_timer_again (EV_A_ &w->timer);
3696 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4371 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3697} 4372}
3698 4373
3699static void noinline 4374noinline
4375static void
3700infy_del (EV_P_ ev_stat *w) 4376infy_del (EV_P_ ev_stat *w)
3701{ 4377{
3702 int slot; 4378 int slot;
3703 int wd = w->wd; 4379 int wd = w->wd;
3704 4380
… …
3711 4387
3712 /* remove this watcher, if others are watching it, they will rearm */ 4388 /* remove this watcher, if others are watching it, they will rearm */
3713 inotify_rm_watch (fs_fd, wd); 4389 inotify_rm_watch (fs_fd, wd);
3714} 4390}
3715 4391
3716static void noinline 4392noinline
4393static void
3717infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4394infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3718{ 4395{
3719 if (slot < 0) 4396 if (slot < 0)
3720 /* overflow, need to check for all hash slots */ 4397 /* overflow, need to check for all hash slots */
3721 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4398 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3757 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4434 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3758 ofs += sizeof (struct inotify_event) + ev->len; 4435 ofs += sizeof (struct inotify_event) + ev->len;
3759 } 4436 }
3760} 4437}
3761 4438
3762inline_size void ecb_cold 4439inline_size ecb_cold
4440void
3763ev_check_2625 (EV_P) 4441ev_check_2625 (EV_P)
3764{ 4442{
3765 /* kernels < 2.6.25 are borked 4443 /* kernels < 2.6.25 are borked
3766 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4444 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3767 */ 4445 */
… …
3857#else 4535#else
3858# define EV_LSTAT(p,b) lstat (p, b) 4536# define EV_LSTAT(p,b) lstat (p, b)
3859#endif 4537#endif
3860 4538
3861void 4539void
3862ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4540ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3863{ 4541{
3864 if (lstat (w->path, &w->attr) < 0) 4542 if (lstat (w->path, &w->attr) < 0)
3865 w->attr.st_nlink = 0; 4543 w->attr.st_nlink = 0;
3866 else if (!w->attr.st_nlink) 4544 else if (!w->attr.st_nlink)
3867 w->attr.st_nlink = 1; 4545 w->attr.st_nlink = 1;
3868} 4546}
3869 4547
3870static void noinline 4548noinline
4549static void
3871stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4550stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3872{ 4551{
3873 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4552 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3874 4553
3875 ev_statdata prev = w->attr; 4554 ev_statdata prev = w->attr;
… …
3906 ev_feed_event (EV_A_ w, EV_STAT); 4585 ev_feed_event (EV_A_ w, EV_STAT);
3907 } 4586 }
3908} 4587}
3909 4588
3910void 4589void
3911ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4590ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3912{ 4591{
3913 if (expect_false (ev_is_active (w))) 4592 if (expect_false (ev_is_active (w)))
3914 return; 4593 return;
3915 4594
3916 ev_stat_stat (EV_A_ w); 4595 ev_stat_stat (EV_A_ w);
… …
3937 4616
3938 EV_FREQUENT_CHECK; 4617 EV_FREQUENT_CHECK;
3939} 4618}
3940 4619
3941void 4620void
3942ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4621ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
3943{ 4622{
3944 clear_pending (EV_A_ (W)w); 4623 clear_pending (EV_A_ (W)w);
3945 if (expect_false (!ev_is_active (w))) 4624 if (expect_false (!ev_is_active (w)))
3946 return; 4625 return;
3947 4626
… …
3963} 4642}
3964#endif 4643#endif
3965 4644
3966#if EV_IDLE_ENABLE 4645#if EV_IDLE_ENABLE
3967void 4646void
3968ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4647ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
3969{ 4648{
3970 if (expect_false (ev_is_active (w))) 4649 if (expect_false (ev_is_active (w)))
3971 return; 4650 return;
3972 4651
3973 pri_adjust (EV_A_ (W)w); 4652 pri_adjust (EV_A_ (W)w);
… …
3978 int active = ++idlecnt [ABSPRI (w)]; 4657 int active = ++idlecnt [ABSPRI (w)];
3979 4658
3980 ++idleall; 4659 ++idleall;
3981 ev_start (EV_A_ (W)w, active); 4660 ev_start (EV_A_ (W)w, active);
3982 4661
3983 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4662 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
3984 idles [ABSPRI (w)][active - 1] = w; 4663 idles [ABSPRI (w)][active - 1] = w;
3985 } 4664 }
3986 4665
3987 EV_FREQUENT_CHECK; 4666 EV_FREQUENT_CHECK;
3988} 4667}
3989 4668
3990void 4669void
3991ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4670ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
3992{ 4671{
3993 clear_pending (EV_A_ (W)w); 4672 clear_pending (EV_A_ (W)w);
3994 if (expect_false (!ev_is_active (w))) 4673 if (expect_false (!ev_is_active (w)))
3995 return; 4674 return;
3996 4675
… …
4010} 4689}
4011#endif 4690#endif
4012 4691
4013#if EV_PREPARE_ENABLE 4692#if EV_PREPARE_ENABLE
4014void 4693void
4015ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4694ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4016{ 4695{
4017 if (expect_false (ev_is_active (w))) 4696 if (expect_false (ev_is_active (w)))
4018 return; 4697 return;
4019 4698
4020 EV_FREQUENT_CHECK; 4699 EV_FREQUENT_CHECK;
4021 4700
4022 ev_start (EV_A_ (W)w, ++preparecnt); 4701 ev_start (EV_A_ (W)w, ++preparecnt);
4023 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4702 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4024 prepares [preparecnt - 1] = w; 4703 prepares [preparecnt - 1] = w;
4025 4704
4026 EV_FREQUENT_CHECK; 4705 EV_FREQUENT_CHECK;
4027} 4706}
4028 4707
4029void 4708void
4030ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4709ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4031{ 4710{
4032 clear_pending (EV_A_ (W)w); 4711 clear_pending (EV_A_ (W)w);
4033 if (expect_false (!ev_is_active (w))) 4712 if (expect_false (!ev_is_active (w)))
4034 return; 4713 return;
4035 4714
… …
4048} 4727}
4049#endif 4728#endif
4050 4729
4051#if EV_CHECK_ENABLE 4730#if EV_CHECK_ENABLE
4052void 4731void
4053ev_check_start (EV_P_ ev_check *w) EV_THROW 4732ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4054{ 4733{
4055 if (expect_false (ev_is_active (w))) 4734 if (expect_false (ev_is_active (w)))
4056 return; 4735 return;
4057 4736
4058 EV_FREQUENT_CHECK; 4737 EV_FREQUENT_CHECK;
4059 4738
4060 ev_start (EV_A_ (W)w, ++checkcnt); 4739 ev_start (EV_A_ (W)w, ++checkcnt);
4061 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4740 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4062 checks [checkcnt - 1] = w; 4741 checks [checkcnt - 1] = w;
4063 4742
4064 EV_FREQUENT_CHECK; 4743 EV_FREQUENT_CHECK;
4065} 4744}
4066 4745
4067void 4746void
4068ev_check_stop (EV_P_ ev_check *w) EV_THROW 4747ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4069{ 4748{
4070 clear_pending (EV_A_ (W)w); 4749 clear_pending (EV_A_ (W)w);
4071 if (expect_false (!ev_is_active (w))) 4750 if (expect_false (!ev_is_active (w)))
4072 return; 4751 return;
4073 4752
… …
4085 EV_FREQUENT_CHECK; 4764 EV_FREQUENT_CHECK;
4086} 4765}
4087#endif 4766#endif
4088 4767
4089#if EV_EMBED_ENABLE 4768#if EV_EMBED_ENABLE
4090void noinline 4769noinline
4770void
4091ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4771ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4092{ 4772{
4093 ev_run (w->other, EVRUN_NOWAIT); 4773 ev_run (w->other, EVRUN_NOWAIT);
4094} 4774}
4095 4775
4096static void 4776static void
… …
4144 ev_idle_stop (EV_A_ idle); 4824 ev_idle_stop (EV_A_ idle);
4145} 4825}
4146#endif 4826#endif
4147 4827
4148void 4828void
4149ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4829ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4150{ 4830{
4151 if (expect_false (ev_is_active (w))) 4831 if (expect_false (ev_is_active (w)))
4152 return; 4832 return;
4153 4833
4154 { 4834 {
… …
4175 4855
4176 EV_FREQUENT_CHECK; 4856 EV_FREQUENT_CHECK;
4177} 4857}
4178 4858
4179void 4859void
4180ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4860ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4181{ 4861{
4182 clear_pending (EV_A_ (W)w); 4862 clear_pending (EV_A_ (W)w);
4183 if (expect_false (!ev_is_active (w))) 4863 if (expect_false (!ev_is_active (w)))
4184 return; 4864 return;
4185 4865
… …
4195} 4875}
4196#endif 4876#endif
4197 4877
4198#if EV_FORK_ENABLE 4878#if EV_FORK_ENABLE
4199void 4879void
4200ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4880ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4201{ 4881{
4202 if (expect_false (ev_is_active (w))) 4882 if (expect_false (ev_is_active (w)))
4203 return; 4883 return;
4204 4884
4205 EV_FREQUENT_CHECK; 4885 EV_FREQUENT_CHECK;
4206 4886
4207 ev_start (EV_A_ (W)w, ++forkcnt); 4887 ev_start (EV_A_ (W)w, ++forkcnt);
4208 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4888 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4209 forks [forkcnt - 1] = w; 4889 forks [forkcnt - 1] = w;
4210 4890
4211 EV_FREQUENT_CHECK; 4891 EV_FREQUENT_CHECK;
4212} 4892}
4213 4893
4214void 4894void
4215ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4895ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4216{ 4896{
4217 clear_pending (EV_A_ (W)w); 4897 clear_pending (EV_A_ (W)w);
4218 if (expect_false (!ev_is_active (w))) 4898 if (expect_false (!ev_is_active (w)))
4219 return; 4899 return;
4220 4900
… …
4233} 4913}
4234#endif 4914#endif
4235 4915
4236#if EV_CLEANUP_ENABLE 4916#if EV_CLEANUP_ENABLE
4237void 4917void
4238ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4918ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4239{ 4919{
4240 if (expect_false (ev_is_active (w))) 4920 if (expect_false (ev_is_active (w)))
4241 return; 4921 return;
4242 4922
4243 EV_FREQUENT_CHECK; 4923 EV_FREQUENT_CHECK;
4244 4924
4245 ev_start (EV_A_ (W)w, ++cleanupcnt); 4925 ev_start (EV_A_ (W)w, ++cleanupcnt);
4246 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4926 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4247 cleanups [cleanupcnt - 1] = w; 4927 cleanups [cleanupcnt - 1] = w;
4248 4928
4249 /* cleanup watchers should never keep a refcount on the loop */ 4929 /* cleanup watchers should never keep a refcount on the loop */
4250 ev_unref (EV_A); 4930 ev_unref (EV_A);
4251 EV_FREQUENT_CHECK; 4931 EV_FREQUENT_CHECK;
4252} 4932}
4253 4933
4254void 4934void
4255ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4935ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4256{ 4936{
4257 clear_pending (EV_A_ (W)w); 4937 clear_pending (EV_A_ (W)w);
4258 if (expect_false (!ev_is_active (w))) 4938 if (expect_false (!ev_is_active (w)))
4259 return; 4939 return;
4260 4940
… …
4274} 4954}
4275#endif 4955#endif
4276 4956
4277#if EV_ASYNC_ENABLE 4957#if EV_ASYNC_ENABLE
4278void 4958void
4279ev_async_start (EV_P_ ev_async *w) EV_THROW 4959ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4280{ 4960{
4281 if (expect_false (ev_is_active (w))) 4961 if (expect_false (ev_is_active (w)))
4282 return; 4962 return;
4283 4963
4284 w->sent = 0; 4964 w->sent = 0;
… …
4286 evpipe_init (EV_A); 4966 evpipe_init (EV_A);
4287 4967
4288 EV_FREQUENT_CHECK; 4968 EV_FREQUENT_CHECK;
4289 4969
4290 ev_start (EV_A_ (W)w, ++asynccnt); 4970 ev_start (EV_A_ (W)w, ++asynccnt);
4291 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4971 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4292 asyncs [asynccnt - 1] = w; 4972 asyncs [asynccnt - 1] = w;
4293 4973
4294 EV_FREQUENT_CHECK; 4974 EV_FREQUENT_CHECK;
4295} 4975}
4296 4976
4297void 4977void
4298ev_async_stop (EV_P_ ev_async *w) EV_THROW 4978ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4299{ 4979{
4300 clear_pending (EV_A_ (W)w); 4980 clear_pending (EV_A_ (W)w);
4301 if (expect_false (!ev_is_active (w))) 4981 if (expect_false (!ev_is_active (w)))
4302 return; 4982 return;
4303 4983
… …
4314 4994
4315 EV_FREQUENT_CHECK; 4995 EV_FREQUENT_CHECK;
4316} 4996}
4317 4997
4318void 4998void
4319ev_async_send (EV_P_ ev_async *w) EV_THROW 4999ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4320{ 5000{
4321 w->sent = 1; 5001 w->sent = 1;
4322 evpipe_write (EV_A_ &async_pending); 5002 evpipe_write (EV_A_ &async_pending);
4323} 5003}
4324#endif 5004#endif
… …
4361 5041
4362 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5042 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4363} 5043}
4364 5044
4365void 5045void
4366ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5046ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4367{ 5047{
4368 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5048 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4369
4370 if (expect_false (!once))
4371 {
4372 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4373 return;
4374 }
4375 5049
4376 once->cb = cb; 5050 once->cb = cb;
4377 once->arg = arg; 5051 once->arg = arg;
4378 5052
4379 ev_init (&once->io, once_cb_io); 5053 ev_init (&once->io, once_cb_io);
… …
4392} 5066}
4393 5067
4394/*****************************************************************************/ 5068/*****************************************************************************/
4395 5069
4396#if EV_WALK_ENABLE 5070#if EV_WALK_ENABLE
4397void ecb_cold 5071ecb_cold
5072void
4398ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5073ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4399{ 5074{
4400 int i, j; 5075 int i, j;
4401 ev_watcher_list *wl, *wn; 5076 ev_watcher_list *wl, *wn;
4402 5077
4403 if (types & (EV_IO | EV_EMBED)) 5078 if (types & (EV_IO | EV_EMBED))

Diff Legend

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