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Comparing libev/ev.c (file contents):
Revision 1.440 by root, Tue May 29 21:37:14 2012 UTC vs.
Revision 1.499 by root, Wed Jun 26 07:50:27 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
312#ifndef EV_USE_INOTIFY 337#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 339# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 340# else
316# define EV_USE_INOTIFY 0 341# define EV_USE_INOTIFY 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 380# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 381#endif
357 382
358#ifndef EV_HEAP_CACHE_AT 383#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 384# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
385#endif
386
387#ifdef __ANDROID__
388/* supposedly, android doesn't typedef fd_mask */
389# undef EV_USE_SELECT
390# define EV_USE_SELECT 0
391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
392# undef EV_USE_CLOCK_SYSCALL
393# define EV_USE_CLOCK_SYSCALL 0
394#endif
395
396/* aix's poll.h seems to cause lots of trouble */
397#ifdef _AIX
398/* AIX has a completely broken poll.h header */
399# undef EV_USE_POLL
400# define EV_USE_POLL 0
360#endif 401#endif
361 402
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 403/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */ 404/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 405#if EV_USE_CLOCK_SYSCALL
… …
373# endif 414# endif
374#endif 415#endif
375 416
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 417/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377 418
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
384#ifndef CLOCK_MONOTONIC 419#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 420# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 421# define EV_USE_MONOTONIC 0
387#endif 422#endif
388 423
… …
398 433
399#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
400/* hp-ux has it in sys/time.h, which we unconditionally include above */ 435/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux 436# if !defined _WIN32 && !defined __hpux
402# include <sys/select.h> 437# include <sys/select.h>
438# endif
439#endif
440
441#if EV_USE_LINUXAIO
442# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */
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>
… …
475/* 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 */
476/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
477/* 520/*
478 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
479 * 522 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 525 * All rights reserved.
483 * 526 *
484 * 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-
485 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
499 * 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;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * 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
503 * 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.
504 */ 558 */
505 559
506#ifndef ECB_H 560#ifndef ECB_H
507#define ECB_H 561#define ECB_H
508 562
509/* 16 bits major, 16 bits minor */ 563/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001 564#define ECB_VERSION 0x00010006
511 565
512#ifdef _WIN32 566#ifdef _WIN32
513 typedef signed char int8_t; 567 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
530 #else 584 #else
531 #define ECB_PTRSIZE 4 585 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t; 586 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 587 typedef int32_t intptr_t;
534 #endif 588 #endif
535 typedef intptr_t ptrdiff_t;
536#else 589#else
537 #include <inttypes.h> 590 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU 591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
539 #define ECB_PTRSIZE 8 592 #define ECB_PTRSIZE 8
540 #else 593 #else
541 #define ECB_PTRSIZE 4 594 #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
542 #endif 607 #endif
543#endif 608#endif
544 609
545/* many compilers define _GNUC_ to some versions but then only implement 610/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions, 611 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so. 613 * or so.
549 * 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
550 * 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.
551 */ 616 */
552#ifndef ECB_GCC_VERSION
553 #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__
554 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
555 #else 619#else
556 #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)))
557 #endif 621#endif
558#endif
559 622
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 623#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
561#define ECB_C99 (__STDC_VERSION__ >= 199901L) 624
562#define ECB_C11 (__STDC_VERSION__ >= 201112L) 625#if __clang__ && defined __has_builtin
626 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
627#else
628 #define ECB_CLANG_BUILTIN(x) 0
629#endif
630
631#if __clang__ && defined __has_extension
632 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
633#else
634 #define ECB_CLANG_EXTENSION(x) 0
635#endif
636
563#define ECB_CPP (__cplusplus+0) 637#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP98 (__cplusplus >= 199711L)
565#define ECB_CPP11 (__cplusplus >= 201103L) 638#define ECB_CPP11 (__cplusplus >= 201103L)
639#define ECB_CPP14 (__cplusplus >= 201402L)
640#define ECB_CPP17 (__cplusplus >= 201703L)
641
642#if ECB_CPP
643 #define ECB_C 0
644 #define ECB_STDC_VERSION 0
645#else
646 #define ECB_C 1
647 #define ECB_STDC_VERSION __STDC_VERSION__
648#endif
649
650#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
651#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
652#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
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
662#endif
566 663
567/*****************************************************************************/ 664/*****************************************************************************/
568 665
569/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 666/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
570/* 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 */
… …
575 672
576#if ECB_NO_SMP 673#if ECB_NO_SMP
577 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
578#endif 675#endif
579 676
677/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
678#if __xlC__ && ECB_CPP
679 #include <builtins.h>
680#endif
681
682#if 1400 <= _MSC_VER
683 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
684#endif
685
580#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
581 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 687 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
688 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
582 #if __i386 || __i386__ 689 #if __i386 || __i386__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
584 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
585 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
586 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 693 #elif ECB_GCC_AMD64
587 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
588 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 695 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
589 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 696 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
590 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 697 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
699 #elif defined __ARM_ARCH_2__ \
700 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
701 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
702 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
703 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
704 || defined __ARM_ARCH_5TEJ__
705 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
592 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 706 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
593 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 707 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
708 || defined __ARM_ARCH_6T2__
594 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 709 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
595 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 710 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
596 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 711 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
597 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 712 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
598 #elif __sparc || __sparc__ 713 #elif __aarch64__
714 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
715 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 716 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 717 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
601 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 718 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
602 #elif defined __s390__ || defined __s390x__ 719 #elif defined __s390__ || defined __s390x__
603 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 720 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
604 #elif defined __mips__ 721 #elif defined __mips__
722 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
723 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 724 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
606 #elif defined __alpha__ 725 #elif defined __alpha__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 726 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
608 #elif defined __hppa__ 727 #elif defined __hppa__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 728 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
610 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 729 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
611 #elif defined __ia64__ 730 #elif defined __ia64__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 731 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
732 #elif defined __m68k__
733 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
734 #elif defined __m88k__
735 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
736 #elif defined __sh__
737 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
613 #endif 738 #endif
614 #endif 739 #endif
615#endif 740#endif
616 741
617#ifndef ECB_MEMORY_FENCE 742#ifndef ECB_MEMORY_FENCE
618 #if ECB_GCC_VERSION(4,7) 743 #if ECB_GCC_VERSION(4,7)
619 /* see comment below about the C11 memory model. in short - avoid */ 744 /* see comment below (stdatomic.h) about the C11 memory model. */
620 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 745 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
621 #elif defined __clang && __has_feature (cxx_atomic) 746 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
622 /* see above */ 747 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
748 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
749
750 #elif ECB_CLANG_EXTENSION(c_atomic)
751 /* see comment below (stdatomic.h) about the C11 memory model. */
623 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 752 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
753 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
754 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
755 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
756
624 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 757 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
625 #define ECB_MEMORY_FENCE __sync_synchronize () 758 #define ECB_MEMORY_FENCE __sync_synchronize ()
759 #elif _MSC_VER >= 1500 /* VC++ 2008 */
760 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
761 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
762 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
763 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
764 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
626 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 765 #elif _MSC_VER >= 1400 /* VC++ 2005 */
627 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 766 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
628 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 767 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
629 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 768 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
630 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 769 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
631 #elif defined _WIN32 770 #elif defined _WIN32
632 #include <WinNT.h> 771 #include <WinNT.h>
633 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 772 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
634 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 773 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
635 #include <mbarrier.h> 774 #include <mbarrier.h>
636 #define ECB_MEMORY_FENCE __machine_rw_barrier () 775 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
637 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 776 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
638 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 777 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
778 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
639 #elif __xlC__ 779 #elif __xlC__
640 #define ECB_MEMORY_FENCE __sync () 780 #define ECB_MEMORY_FENCE __sync ()
641 #endif 781 #endif
642#endif 782#endif
643 783
644#ifndef ECB_MEMORY_FENCE 784#ifndef ECB_MEMORY_FENCE
645 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 785 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
646 /* we assume that these memory fences work on all variables/all memory accesses, */ 786 /* we assume that these memory fences work on all variables/all memory accesses, */
647 /* not just C11 atomics and atomic accesses */ 787 /* not just C11 atomics and atomic accesses */
648 #include <stdatomic.h> 788 #include <stdatomic.h>
649 /* unfortunately, the C11 memory model seems to be very limited, and unable to express */
650 /* simple barrier semantics. That means we need to take out thor's hammer. */
651 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 789 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
790 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
791 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
652 #endif 792 #endif
653#endif 793#endif
654 794
655#ifndef ECB_MEMORY_FENCE 795#ifndef ECB_MEMORY_FENCE
656 #if !ECB_AVOID_PTHREADS 796 #if !ECB_AVOID_PTHREADS
… …
676 816
677#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 817#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
678 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 818 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
679#endif 819#endif
680 820
821#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
822 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
823#endif
824
681/*****************************************************************************/ 825/*****************************************************************************/
682 826
683#if __cplusplus 827#if ECB_CPP
684 #define ecb_inline static inline 828 #define ecb_inline static inline
685#elif ECB_GCC_VERSION(2,5) 829#elif ECB_GCC_VERSION(2,5)
686 #define ecb_inline static __inline__ 830 #define ecb_inline static __inline__
687#elif ECB_C99 831#elif ECB_C99
688 #define ecb_inline static inline 832 #define ecb_inline static inline
… …
702 846
703#define ECB_CONCAT_(a, b) a ## b 847#define ECB_CONCAT_(a, b) a ## b
704#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 848#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
705#define ECB_STRINGIFY_(a) # a 849#define ECB_STRINGIFY_(a) # a
706#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 850#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
851#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
707 852
708#define ecb_function_ ecb_inline 853#define ecb_function_ ecb_inline
709 854
710#if ECB_GCC_VERSION(3,1) 855#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
711 #define ecb_attribute(attrlist) __attribute__(attrlist) 856 #define ecb_attribute(attrlist) __attribute__ (attrlist)
857#else
858 #define ecb_attribute(attrlist)
859#endif
860
861#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
712 #define ecb_is_constant(expr) __builtin_constant_p (expr) 862 #define ecb_is_constant(expr) __builtin_constant_p (expr)
863#else
864 /* possible C11 impl for integral types
865 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
866 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
867
868 #define ecb_is_constant(expr) 0
869#endif
870
871#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
713 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 872 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
873#else
874 #define ecb_expect(expr,value) (expr)
875#endif
876
877#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
714 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 878 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
715#else 879#else
716 #define ecb_attribute(attrlist)
717 #define ecb_is_constant(expr) 0
718 #define ecb_expect(expr,value) (expr)
719 #define ecb_prefetch(addr,rw,locality) 880 #define ecb_prefetch(addr,rw,locality)
720#endif 881#endif
721 882
722/* no emulation for ecb_decltype */ 883/* no emulation for ecb_decltype */
723#if ECB_GCC_VERSION(4,5) 884#if ECB_CPP11
885 // older implementations might have problems with decltype(x)::type, work around it
886 template<class T> struct ecb_decltype_t { typedef T type; };
724 #define ecb_decltype(x) __decltype(x) 887 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
725#elif ECB_GCC_VERSION(3,0) 888#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
726 #define ecb_decltype(x) __typeof(x) 889 #define ecb_decltype(x) __typeof__ (x)
727#endif 890#endif
728 891
892#if _MSC_VER >= 1300
893 #define ecb_deprecated __declspec (deprecated)
894#else
895 #define ecb_deprecated ecb_attribute ((__deprecated__))
896#endif
897
898#if _MSC_VER >= 1500
899 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
900#elif ECB_GCC_VERSION(4,5)
901 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
902#else
903 #define ecb_deprecated_message(msg) ecb_deprecated
904#endif
905
906#if _MSC_VER >= 1400
907 #define ecb_noinline __declspec (noinline)
908#else
729#define ecb_noinline ecb_attribute ((__noinline__)) 909 #define ecb_noinline ecb_attribute ((__noinline__))
910#endif
911
730#define ecb_unused ecb_attribute ((__unused__)) 912#define ecb_unused ecb_attribute ((__unused__))
731#define ecb_const ecb_attribute ((__const__)) 913#define ecb_const ecb_attribute ((__const__))
732#define ecb_pure ecb_attribute ((__pure__)) 914#define ecb_pure ecb_attribute ((__pure__))
733 915
734#if ECB_C11 916#if ECB_C11 || __IBMC_NORETURN
917 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
735 #define ecb_noreturn _Noreturn 918 #define ecb_noreturn _Noreturn
919#elif ECB_CPP11
920 #define ecb_noreturn [[noreturn]]
921#elif _MSC_VER >= 1200
922 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
923 #define ecb_noreturn __declspec (noreturn)
736#else 924#else
737 #define ecb_noreturn ecb_attribute ((__noreturn__)) 925 #define ecb_noreturn ecb_attribute ((__noreturn__))
738#endif 926#endif
739 927
740#if ECB_GCC_VERSION(4,3) 928#if ECB_GCC_VERSION(4,3)
… …
755/* for compatibility to the rest of the world */ 943/* for compatibility to the rest of the world */
756#define ecb_likely(expr) ecb_expect_true (expr) 944#define ecb_likely(expr) ecb_expect_true (expr)
757#define ecb_unlikely(expr) ecb_expect_false (expr) 945#define ecb_unlikely(expr) ecb_expect_false (expr)
758 946
759/* count trailing zero bits and count # of one bits */ 947/* count trailing zero bits and count # of one bits */
760#if ECB_GCC_VERSION(3,4) 948#if ECB_GCC_VERSION(3,4) \
949 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
950 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
951 && ECB_CLANG_BUILTIN(__builtin_popcount))
761 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 952 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
762 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 953 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
763 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 954 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
764 #define ecb_ctz32(x) __builtin_ctz (x) 955 #define ecb_ctz32(x) __builtin_ctz (x)
765 #define ecb_ctz64(x) __builtin_ctzll (x) 956 #define ecb_ctz64(x) __builtin_ctzll (x)
766 #define ecb_popcount32(x) __builtin_popcount (x) 957 #define ecb_popcount32(x) __builtin_popcount (x)
767 /* no popcountll */ 958 /* no popcountll */
768#else 959#else
769 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 960 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
770 ecb_function_ int 961 ecb_function_ ecb_const int
771 ecb_ctz32 (uint32_t x) 962 ecb_ctz32 (uint32_t x)
772 { 963 {
964#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
965 unsigned long r;
966 _BitScanForward (&r, x);
967 return (int)r;
968#else
773 int r = 0; 969 int r = 0;
774 970
775 x &= ~x + 1; /* this isolates the lowest bit */ 971 x &= ~x + 1; /* this isolates the lowest bit */
776 972
777#if ECB_branchless_on_i386 973#if ECB_branchless_on_i386
… …
787 if (x & 0xff00ff00) r += 8; 983 if (x & 0xff00ff00) r += 8;
788 if (x & 0xffff0000) r += 16; 984 if (x & 0xffff0000) r += 16;
789#endif 985#endif
790 986
791 return r; 987 return r;
988#endif
792 } 989 }
793 990
794 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 991 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
795 ecb_function_ int 992 ecb_function_ ecb_const int
796 ecb_ctz64 (uint64_t x) 993 ecb_ctz64 (uint64_t x)
797 { 994 {
995#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
996 unsigned long r;
997 _BitScanForward64 (&r, x);
998 return (int)r;
999#else
798 int shift = x & 0xffffffffU ? 0 : 32; 1000 int shift = x & 0xffffffff ? 0 : 32;
799 return ecb_ctz32 (x >> shift) + shift; 1001 return ecb_ctz32 (x >> shift) + shift;
1002#endif
800 } 1003 }
801 1004
802 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1005 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
803 ecb_function_ int 1006 ecb_function_ ecb_const int
804 ecb_popcount32 (uint32_t x) 1007 ecb_popcount32 (uint32_t x)
805 { 1008 {
806 x -= (x >> 1) & 0x55555555; 1009 x -= (x >> 1) & 0x55555555;
807 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1010 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
808 x = ((x >> 4) + x) & 0x0f0f0f0f; 1011 x = ((x >> 4) + x) & 0x0f0f0f0f;
809 x *= 0x01010101; 1012 x *= 0x01010101;
810 1013
811 return x >> 24; 1014 return x >> 24;
812 } 1015 }
813 1016
814 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1017 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
815 ecb_function_ int ecb_ld32 (uint32_t x) 1018 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
816 { 1019 {
1020#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1021 unsigned long r;
1022 _BitScanReverse (&r, x);
1023 return (int)r;
1024#else
817 int r = 0; 1025 int r = 0;
818 1026
819 if (x >> 16) { x >>= 16; r += 16; } 1027 if (x >> 16) { x >>= 16; r += 16; }
820 if (x >> 8) { x >>= 8; r += 8; } 1028 if (x >> 8) { x >>= 8; r += 8; }
821 if (x >> 4) { x >>= 4; r += 4; } 1029 if (x >> 4) { x >>= 4; r += 4; }
822 if (x >> 2) { x >>= 2; r += 2; } 1030 if (x >> 2) { x >>= 2; r += 2; }
823 if (x >> 1) { r += 1; } 1031 if (x >> 1) { r += 1; }
824 1032
825 return r; 1033 return r;
1034#endif
826 } 1035 }
827 1036
828 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1037 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
829 ecb_function_ int ecb_ld64 (uint64_t x) 1038 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
830 { 1039 {
1040#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1041 unsigned long r;
1042 _BitScanReverse64 (&r, x);
1043 return (int)r;
1044#else
831 int r = 0; 1045 int r = 0;
832 1046
833 if (x >> 32) { x >>= 32; r += 32; } 1047 if (x >> 32) { x >>= 32; r += 32; }
834 1048
835 return r + ecb_ld32 (x); 1049 return r + ecb_ld32 (x);
1050#endif
836 } 1051 }
837#endif 1052#endif
838 1053
839ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1054ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
840ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1055ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
841ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1056ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
842ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1057ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
843 1058
844ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1059ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
845ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1060ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
846{ 1061{
847 return ( (x * 0x0802U & 0x22110U) 1062 return ( (x * 0x0802U & 0x22110U)
848 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1063 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
849} 1064}
850 1065
851ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1066ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
852ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1067ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
853{ 1068{
854 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1069 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
855 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1070 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
856 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1071 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
857 x = ( x >> 8 ) | ( x << 8); 1072 x = ( x >> 8 ) | ( x << 8);
858 1073
859 return x; 1074 return x;
860} 1075}
861 1076
862ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1077ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
863ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1078ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
864{ 1079{
865 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1080 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
866 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1081 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
867 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1082 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
868 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1083 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
871 return x; 1086 return x;
872} 1087}
873 1088
874/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1089/* popcount64 is only available on 64 bit cpus as gcc builtin */
875/* so for this version we are lazy */ 1090/* so for this version we are lazy */
876ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1091ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
877ecb_function_ int 1092ecb_function_ ecb_const int
878ecb_popcount64 (uint64_t x) 1093ecb_popcount64 (uint64_t x)
879{ 1094{
880 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1095 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
881} 1096}
882 1097
883ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1098ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
884ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1099ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
885ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
886ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
887ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
888ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
889ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1104ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
890ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1105ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
891 1106
892ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1107ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
893ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1108ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
894ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1109ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
895ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1110ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
896ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1111ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
897ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1112ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
898ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1113ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
899ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1114ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
900 1115
901#if ECB_GCC_VERSION(4,3) 1116#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1117 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1118 #define ecb_bswap16(x) __builtin_bswap16 (x)
1119 #else
902 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1120 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1121 #endif
903 #define ecb_bswap32(x) __builtin_bswap32 (x) 1122 #define ecb_bswap32(x) __builtin_bswap32 (x)
904 #define ecb_bswap64(x) __builtin_bswap64 (x) 1123 #define ecb_bswap64(x) __builtin_bswap64 (x)
1124#elif _MSC_VER
1125 #include <stdlib.h>
1126 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1127 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1128 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
905#else 1129#else
906 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1130 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
907 ecb_function_ uint16_t 1131 ecb_function_ ecb_const uint16_t
908 ecb_bswap16 (uint16_t x) 1132 ecb_bswap16 (uint16_t x)
909 { 1133 {
910 return ecb_rotl16 (x, 8); 1134 return ecb_rotl16 (x, 8);
911 } 1135 }
912 1136
913 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1137 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
914 ecb_function_ uint32_t 1138 ecb_function_ ecb_const uint32_t
915 ecb_bswap32 (uint32_t x) 1139 ecb_bswap32 (uint32_t x)
916 { 1140 {
917 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1141 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
918 } 1142 }
919 1143
920 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1144 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
921 ecb_function_ uint64_t 1145 ecb_function_ ecb_const uint64_t
922 ecb_bswap64 (uint64_t x) 1146 ecb_bswap64 (uint64_t x)
923 { 1147 {
924 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1148 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
925 } 1149 }
926#endif 1150#endif
927 1151
928#if ECB_GCC_VERSION(4,5) 1152#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
929 #define ecb_unreachable() __builtin_unreachable () 1153 #define ecb_unreachable() __builtin_unreachable ()
930#else 1154#else
931 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1155 /* this seems to work fine, but gcc always emits a warning for it :/ */
932 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1156 ecb_inline ecb_noreturn void ecb_unreachable (void);
933 ecb_inline void ecb_unreachable (void) { } 1157 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
934#endif 1158#endif
935 1159
936/* try to tell the compiler that some condition is definitely true */ 1160/* try to tell the compiler that some condition is definitely true */
937#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1161#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
938 1162
939ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1163ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
940ecb_inline unsigned char 1164ecb_inline ecb_const uint32_t
941ecb_byteorder_helper (void) 1165ecb_byteorder_helper (void)
942{ 1166{
943 const uint32_t u = 0x11223344; 1167 /* the union code still generates code under pressure in gcc, */
944 return *(unsigned char *)&u; 1168 /* but less than using pointers, and always seems to */
1169 /* successfully return a constant. */
1170 /* the reason why we have this horrible preprocessor mess */
1171 /* is to avoid it in all cases, at least on common architectures */
1172 /* or when using a recent enough gcc version (>= 4.6) */
1173#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1174 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1175 #define ECB_LITTLE_ENDIAN 1
1176 return 0x44332211;
1177#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1178 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1179 #define ECB_BIG_ENDIAN 1
1180 return 0x11223344;
1181#else
1182 union
1183 {
1184 uint8_t c[4];
1185 uint32_t u;
1186 } u = { 0x11, 0x22, 0x33, 0x44 };
1187 return u.u;
1188#endif
945} 1189}
946 1190
947ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_big_endian (void);
948ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1192ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
949ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1193ecb_inline ecb_const ecb_bool ecb_little_endian (void);
950ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1194ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
951 1195
952#if ECB_GCC_VERSION(3,0) || ECB_C99 1196#if ECB_GCC_VERSION(3,0) || ECB_C99
953 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1197 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
954#else 1198#else
955 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1199 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
956#endif 1200#endif
957 1201
958#if __cplusplus 1202#if ECB_CPP
959 template<typename T> 1203 template<typename T>
960 static inline T ecb_div_rd (T val, T div) 1204 static inline T ecb_div_rd (T val, T div)
961 { 1205 {
962 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1206 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
963 } 1207 }
… …
980 } 1224 }
981#else 1225#else
982 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1226 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
983#endif 1227#endif
984 1228
1229ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1230ecb_function_ ecb_const uint32_t
1231ecb_binary16_to_binary32 (uint32_t x)
1232{
1233 unsigned int s = (x & 0x8000) << (31 - 15);
1234 int e = (x >> 10) & 0x001f;
1235 unsigned int m = x & 0x03ff;
1236
1237 if (ecb_expect_false (e == 31))
1238 /* infinity or NaN */
1239 e = 255 - (127 - 15);
1240 else if (ecb_expect_false (!e))
1241 {
1242 if (ecb_expect_true (!m))
1243 /* zero, handled by code below by forcing e to 0 */
1244 e = 0 - (127 - 15);
1245 else
1246 {
1247 /* subnormal, renormalise */
1248 unsigned int s = 10 - ecb_ld32 (m);
1249
1250 m = (m << s) & 0x3ff; /* mask implicit bit */
1251 e -= s - 1;
1252 }
1253 }
1254
1255 /* e and m now are normalised, or zero, (or inf or nan) */
1256 e += 127 - 15;
1257
1258 return s | (e << 23) | (m << (23 - 10));
1259}
1260
1261ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1262ecb_function_ ecb_const uint16_t
1263ecb_binary32_to_binary16 (uint32_t x)
1264{
1265 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1266 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1267 unsigned int m = x & 0x007fffff;
1268
1269 x &= 0x7fffffff;
1270
1271 /* if it's within range of binary16 normals, use fast path */
1272 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1273 {
1274 /* mantissa round-to-even */
1275 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1276
1277 /* handle overflow */
1278 if (ecb_expect_false (m >= 0x00800000))
1279 {
1280 m >>= 1;
1281 e += 1;
1282 }
1283
1284 return s | (e << 10) | (m >> (23 - 10));
1285 }
1286
1287 /* handle large numbers and infinity */
1288 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1289 return s | 0x7c00;
1290
1291 /* handle zero, subnormals and small numbers */
1292 if (ecb_expect_true (x < 0x38800000))
1293 {
1294 /* zero */
1295 if (ecb_expect_true (!x))
1296 return s;
1297
1298 /* handle subnormals */
1299
1300 /* too small, will be zero */
1301 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1302 return s;
1303
1304 m |= 0x00800000; /* make implicit bit explicit */
1305
1306 /* very tricky - we need to round to the nearest e (+10) bit value */
1307 {
1308 unsigned int bits = 14 - e;
1309 unsigned int half = (1 << (bits - 1)) - 1;
1310 unsigned int even = (m >> bits) & 1;
1311
1312 /* if this overflows, we will end up with a normalised number */
1313 m = (m + half + even) >> bits;
1314 }
1315
1316 return s | m;
1317 }
1318
1319 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1320 m >>= 13;
1321
1322 return s | 0x7c00 | m | !m;
1323}
1324
1325/*******************************************************************************/
1326/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1327
1328/* basically, everything uses "ieee pure-endian" floating point numbers */
1329/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1330#if 0 \
1331 || __i386 || __i386__ \
1332 || ECB_GCC_AMD64 \
1333 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1334 || defined __s390__ || defined __s390x__ \
1335 || defined __mips__ \
1336 || defined __alpha__ \
1337 || defined __hppa__ \
1338 || defined __ia64__ \
1339 || defined __m68k__ \
1340 || defined __m88k__ \
1341 || defined __sh__ \
1342 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1343 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1344 || defined __aarch64__
1345 #define ECB_STDFP 1
1346 #include <string.h> /* for memcpy */
1347#else
1348 #define ECB_STDFP 0
1349#endif
1350
1351#ifndef ECB_NO_LIBM
1352
1353 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1354
1355 /* only the oldest of old doesn't have this one. solaris. */
1356 #ifdef INFINITY
1357 #define ECB_INFINITY INFINITY
1358 #else
1359 #define ECB_INFINITY HUGE_VAL
1360 #endif
1361
1362 #ifdef NAN
1363 #define ECB_NAN NAN
1364 #else
1365 #define ECB_NAN ECB_INFINITY
1366 #endif
1367
1368 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1369 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1370 #define ecb_frexpf(x,e) frexpf ((x), (e))
1371 #else
1372 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1373 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1374 #endif
1375
1376 /* convert a float to ieee single/binary32 */
1377 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1378 ecb_function_ ecb_const uint32_t
1379 ecb_float_to_binary32 (float x)
1380 {
1381 uint32_t r;
1382
1383 #if ECB_STDFP
1384 memcpy (&r, &x, 4);
1385 #else
1386 /* slow emulation, works for anything but -0 */
1387 uint32_t m;
1388 int e;
1389
1390 if (x == 0e0f ) return 0x00000000U;
1391 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1392 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1393 if (x != x ) return 0x7fbfffffU;
1394
1395 m = ecb_frexpf (x, &e) * 0x1000000U;
1396
1397 r = m & 0x80000000U;
1398
1399 if (r)
1400 m = -m;
1401
1402 if (e <= -126)
1403 {
1404 m &= 0xffffffU;
1405 m >>= (-125 - e);
1406 e = -126;
1407 }
1408
1409 r |= (e + 126) << 23;
1410 r |= m & 0x7fffffU;
1411 #endif
1412
1413 return r;
1414 }
1415
1416 /* converts an ieee single/binary32 to a float */
1417 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1418 ecb_function_ ecb_const float
1419 ecb_binary32_to_float (uint32_t x)
1420 {
1421 float r;
1422
1423 #if ECB_STDFP
1424 memcpy (&r, &x, 4);
1425 #else
1426 /* emulation, only works for normals and subnormals and +0 */
1427 int neg = x >> 31;
1428 int e = (x >> 23) & 0xffU;
1429
1430 x &= 0x7fffffU;
1431
1432 if (e)
1433 x |= 0x800000U;
1434 else
1435 e = 1;
1436
1437 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1438 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1439
1440 r = neg ? -r : r;
1441 #endif
1442
1443 return r;
1444 }
1445
1446 /* convert a double to ieee double/binary64 */
1447 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1448 ecb_function_ ecb_const uint64_t
1449 ecb_double_to_binary64 (double x)
1450 {
1451 uint64_t r;
1452
1453 #if ECB_STDFP
1454 memcpy (&r, &x, 8);
1455 #else
1456 /* slow emulation, works for anything but -0 */
1457 uint64_t m;
1458 int e;
1459
1460 if (x == 0e0 ) return 0x0000000000000000U;
1461 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1462 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1463 if (x != x ) return 0X7ff7ffffffffffffU;
1464
1465 m = frexp (x, &e) * 0x20000000000000U;
1466
1467 r = m & 0x8000000000000000;;
1468
1469 if (r)
1470 m = -m;
1471
1472 if (e <= -1022)
1473 {
1474 m &= 0x1fffffffffffffU;
1475 m >>= (-1021 - e);
1476 e = -1022;
1477 }
1478
1479 r |= ((uint64_t)(e + 1022)) << 52;
1480 r |= m & 0xfffffffffffffU;
1481 #endif
1482
1483 return r;
1484 }
1485
1486 /* converts an ieee double/binary64 to a double */
1487 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1488 ecb_function_ ecb_const double
1489 ecb_binary64_to_double (uint64_t x)
1490 {
1491 double r;
1492
1493 #if ECB_STDFP
1494 memcpy (&r, &x, 8);
1495 #else
1496 /* emulation, only works for normals and subnormals and +0 */
1497 int neg = x >> 63;
1498 int e = (x >> 52) & 0x7ffU;
1499
1500 x &= 0xfffffffffffffU;
1501
1502 if (e)
1503 x |= 0x10000000000000U;
1504 else
1505 e = 1;
1506
1507 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1508 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1509
1510 r = neg ? -r : r;
1511 #endif
1512
1513 return r;
1514 }
1515
1516 /* convert a float to ieee half/binary16 */
1517 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1518 ecb_function_ ecb_const uint16_t
1519 ecb_float_to_binary16 (float x)
1520 {
1521 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1522 }
1523
1524 /* convert an ieee half/binary16 to float */
1525 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1526 ecb_function_ ecb_const float
1527 ecb_binary16_to_float (uint16_t x)
1528 {
1529 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1530 }
1531
1532#endif
1533
985#endif 1534#endif
986 1535
987/* ECB.H END */ 1536/* ECB.H END */
988 1537
989#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1538#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1010#define inline_size ecb_inline 1559#define inline_size ecb_inline
1011 1560
1012#if EV_FEATURE_CODE 1561#if EV_FEATURE_CODE
1013# define inline_speed ecb_inline 1562# define inline_speed ecb_inline
1014#else 1563#else
1015# define inline_speed static noinline 1564# define inline_speed noinline static
1016#endif 1565#endif
1017 1566
1018#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1567#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1019 1568
1020#if EV_MINPRI == EV_MAXPRI 1569#if EV_MINPRI == EV_MAXPRI
1021# define ABSPRI(w) (((W)w), 0) 1570# define ABSPRI(w) (((W)w), 0)
1022#else 1571#else
1023# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1572# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1024#endif 1573#endif
1025 1574
1026#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1575#define EMPTY /* required for microsofts broken pseudo-c compiler */
1027#define EMPTY2(a,b) /* used to suppress some warnings */
1028 1576
1029typedef ev_watcher *W; 1577typedef ev_watcher *W;
1030typedef ev_watcher_list *WL; 1578typedef ev_watcher_list *WL;
1031typedef ev_watcher_time *WT; 1579typedef ev_watcher_time *WT;
1032 1580
… …
1057# include "ev_win32.c" 1605# include "ev_win32.c"
1058#endif 1606#endif
1059 1607
1060/*****************************************************************************/ 1608/*****************************************************************************/
1061 1609
1610#if EV_USE_LINUXAIO
1611# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1612#endif
1613
1062/* define a suitable floor function (only used by periodics atm) */ 1614/* define a suitable floor function (only used by periodics atm) */
1063 1615
1064#if EV_USE_FLOOR 1616#if EV_USE_FLOOR
1065# include <math.h> 1617# include <math.h>
1066# define ev_floor(v) floor (v) 1618# define ev_floor(v) floor (v)
1067#else 1619#else
1068 1620
1069#include <float.h> 1621#include <float.h>
1070 1622
1071/* a floor() replacement function, should be independent of ev_tstamp type */ 1623/* a floor() replacement function, should be independent of ev_tstamp type */
1624noinline
1072static ev_tstamp noinline 1625static ev_tstamp
1073ev_floor (ev_tstamp v) 1626ev_floor (ev_tstamp v)
1074{ 1627{
1075 /* the choice of shift factor is not terribly important */ 1628 /* the choice of shift factor is not terribly important */
1076#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1629#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1077 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1630 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1109 1662
1110#ifdef __linux 1663#ifdef __linux
1111# include <sys/utsname.h> 1664# include <sys/utsname.h>
1112#endif 1665#endif
1113 1666
1114static unsigned int noinline ecb_cold 1667noinline ecb_cold
1668static unsigned int
1115ev_linux_version (void) 1669ev_linux_version (void)
1116{ 1670{
1117#ifdef __linux 1671#ifdef __linux
1118 unsigned int v = 0; 1672 unsigned int v = 0;
1119 struct utsname buf; 1673 struct utsname buf;
… …
1148} 1702}
1149 1703
1150/*****************************************************************************/ 1704/*****************************************************************************/
1151 1705
1152#if EV_AVOID_STDIO 1706#if EV_AVOID_STDIO
1153static void noinline ecb_cold 1707noinline ecb_cold
1708static void
1154ev_printerr (const char *msg) 1709ev_printerr (const char *msg)
1155{ 1710{
1156 write (STDERR_FILENO, msg, strlen (msg)); 1711 write (STDERR_FILENO, msg, strlen (msg));
1157} 1712}
1158#endif 1713#endif
1159 1714
1160static void (*syserr_cb)(const char *msg) EV_THROW; 1715static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1161 1716
1162void ecb_cold 1717ecb_cold
1718void
1163ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1719ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1164{ 1720{
1165 syserr_cb = cb; 1721 syserr_cb = cb;
1166} 1722}
1167 1723
1168static void noinline ecb_cold 1724noinline ecb_cold
1725static void
1169ev_syserr (const char *msg) 1726ev_syserr (const char *msg)
1170{ 1727{
1171 if (!msg) 1728 if (!msg)
1172 msg = "(libev) system error"; 1729 msg = "(libev) system error";
1173 1730
… …
1186 abort (); 1743 abort ();
1187 } 1744 }
1188} 1745}
1189 1746
1190static void * 1747static void *
1191ev_realloc_emul (void *ptr, long size) EV_THROW 1748ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1192{ 1749{
1193#if __GLIBC__
1194 return realloc (ptr, size);
1195#else
1196 /* some systems, notably openbsd and darwin, fail to properly 1750 /* some systems, notably openbsd and darwin, fail to properly
1197 * implement realloc (x, 0) (as required by both ansi c-89 and 1751 * implement realloc (x, 0) (as required by both ansi c-89 and
1198 * the single unix specification, so work around them here. 1752 * the single unix specification, so work around them here.
1753 * recently, also (at least) fedora and debian started breaking it,
1754 * despite documenting it otherwise.
1199 */ 1755 */
1200 1756
1201 if (size) 1757 if (size)
1202 return realloc (ptr, size); 1758 return realloc (ptr, size);
1203 1759
1204 free (ptr); 1760 free (ptr);
1205 return 0; 1761 return 0;
1206#endif
1207} 1762}
1208 1763
1209static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1764static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1210 1765
1211void ecb_cold 1766ecb_cold
1767void
1212ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1768ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1213{ 1769{
1214 alloc = cb; 1770 alloc = cb;
1215} 1771}
1216 1772
1217inline_speed void * 1773inline_speed void *
… …
1244typedef struct 1800typedef struct
1245{ 1801{
1246 WL head; 1802 WL head;
1247 unsigned char events; /* the events watched for */ 1803 unsigned char events; /* the events watched for */
1248 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1804 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1249 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1805 unsigned char emask; /* some backends store the actual kernel mask in here */
1250 unsigned char unused; 1806 unsigned char unused;
1251#if EV_USE_EPOLL 1807#if EV_USE_EPOLL
1252 unsigned int egen; /* generation counter to counter epoll bugs */ 1808 unsigned int egen; /* generation counter to counter epoll bugs */
1253#endif 1809#endif
1254#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1810#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1334 1890
1335/*****************************************************************************/ 1891/*****************************************************************************/
1336 1892
1337#ifndef EV_HAVE_EV_TIME 1893#ifndef EV_HAVE_EV_TIME
1338ev_tstamp 1894ev_tstamp
1339ev_time (void) EV_THROW 1895ev_time (void) EV_NOEXCEPT
1340{ 1896{
1341#if EV_USE_REALTIME 1897#if EV_USE_REALTIME
1342 if (expect_true (have_realtime)) 1898 if (expect_true (have_realtime))
1343 { 1899 {
1344 struct timespec ts; 1900 struct timespec ts;
… …
1368 return ev_time (); 1924 return ev_time ();
1369} 1925}
1370 1926
1371#if EV_MULTIPLICITY 1927#if EV_MULTIPLICITY
1372ev_tstamp 1928ev_tstamp
1373ev_now (EV_P) EV_THROW 1929ev_now (EV_P) EV_NOEXCEPT
1374{ 1930{
1375 return ev_rt_now; 1931 return ev_rt_now;
1376} 1932}
1377#endif 1933#endif
1378 1934
1379void 1935void
1380ev_sleep (ev_tstamp delay) EV_THROW 1936ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1381{ 1937{
1382 if (delay > 0.) 1938 if (delay > 0.)
1383 { 1939 {
1384#if EV_USE_NANOSLEEP 1940#if EV_USE_NANOSLEEP
1385 struct timespec ts; 1941 struct timespec ts;
1386 1942
1387 EV_TS_SET (ts, delay); 1943 EV_TS_SET (ts, delay);
1388 nanosleep (&ts, 0); 1944 nanosleep (&ts, 0);
1389#elif defined _WIN32 1945#elif defined _WIN32
1946 /* maybe this should round up, as ms is very low resolution */
1947 /* compared to select (µs) or nanosleep (ns) */
1390 Sleep ((unsigned long)(delay * 1e3)); 1948 Sleep ((unsigned long)(delay * 1e3));
1391#else 1949#else
1392 struct timeval tv; 1950 struct timeval tv;
1393 1951
1394 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1952 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1425 } 1983 }
1426 1984
1427 return ncur; 1985 return ncur;
1428} 1986}
1429 1987
1430static void * noinline ecb_cold 1988noinline ecb_cold
1989static void *
1431array_realloc (int elem, void *base, int *cur, int cnt) 1990array_realloc (int elem, void *base, int *cur, int cnt)
1432{ 1991{
1433 *cur = array_nextsize (elem, *cur, cnt); 1992 *cur = array_nextsize (elem, *cur, cnt);
1434 return ev_realloc (base, elem * *cur); 1993 return ev_realloc (base, elem * *cur);
1435} 1994}
1436 1995
1996#define array_needsize_noinit(base,offset,count)
1997
1437#define array_init_zero(base,count) \ 1998#define array_needsize_zerofill(base,offset,count) \
1438 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1999 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1439 2000
1440#define array_needsize(type,base,cur,cnt,init) \ 2001#define array_needsize(type,base,cur,cnt,init) \
1441 if (expect_false ((cnt) > (cur))) \ 2002 if (expect_false ((cnt) > (cur))) \
1442 { \ 2003 { \
1443 int ecb_unused ocur_ = (cur); \ 2004 ecb_unused int ocur_ = (cur); \
1444 (base) = (type *)array_realloc \ 2005 (base) = (type *)array_realloc \
1445 (sizeof (type), (base), &(cur), (cnt)); \ 2006 (sizeof (type), (base), &(cur), (cnt)); \
1446 init ((base) + (ocur_), (cur) - ocur_); \ 2007 init ((base), ocur_, ((cur) - ocur_)); \
1447 } 2008 }
1448 2009
1449#if 0 2010#if 0
1450#define array_slim(type,stem) \ 2011#define array_slim(type,stem) \
1451 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2012 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1460 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2021 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1461 2022
1462/*****************************************************************************/ 2023/*****************************************************************************/
1463 2024
1464/* dummy callback for pending events */ 2025/* dummy callback for pending events */
1465static void noinline 2026noinline
2027static void
1466pendingcb (EV_P_ ev_prepare *w, int revents) 2028pendingcb (EV_P_ ev_prepare *w, int revents)
1467{ 2029{
1468} 2030}
1469 2031
1470void noinline 2032noinline
2033void
1471ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2034ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1472{ 2035{
1473 W w_ = (W)w; 2036 W w_ = (W)w;
1474 int pri = ABSPRI (w_); 2037 int pri = ABSPRI (w_);
1475 2038
1476 if (expect_false (w_->pending)) 2039 if (expect_false (w_->pending))
1477 pendings [pri][w_->pending - 1].events |= revents; 2040 pendings [pri][w_->pending - 1].events |= revents;
1478 else 2041 else
1479 { 2042 {
1480 w_->pending = ++pendingcnt [pri]; 2043 w_->pending = ++pendingcnt [pri];
1481 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2044 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1482 pendings [pri][w_->pending - 1].w = w_; 2045 pendings [pri][w_->pending - 1].w = w_;
1483 pendings [pri][w_->pending - 1].events = revents; 2046 pendings [pri][w_->pending - 1].events = revents;
1484 } 2047 }
1485 2048
1486 pendingpri = NUMPRI - 1; 2049 pendingpri = NUMPRI - 1;
1487} 2050}
1488 2051
1489inline_speed void 2052inline_speed void
1490feed_reverse (EV_P_ W w) 2053feed_reverse (EV_P_ W w)
1491{ 2054{
1492 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2055 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1493 rfeeds [rfeedcnt++] = w; 2056 rfeeds [rfeedcnt++] = w;
1494} 2057}
1495 2058
1496inline_size void 2059inline_size void
1497feed_reverse_done (EV_P_ int revents) 2060feed_reverse_done (EV_P_ int revents)
… …
1537 if (expect_true (!anfd->reify)) 2100 if (expect_true (!anfd->reify))
1538 fd_event_nocheck (EV_A_ fd, revents); 2101 fd_event_nocheck (EV_A_ fd, revents);
1539} 2102}
1540 2103
1541void 2104void
1542ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2105ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1543{ 2106{
1544 if (fd >= 0 && fd < anfdmax) 2107 if (fd >= 0 && fd < anfdmax)
1545 fd_event_nocheck (EV_A_ fd, revents); 2108 fd_event_nocheck (EV_A_ fd, revents);
1546} 2109}
1547 2110
… …
1584 ev_io *w; 2147 ev_io *w;
1585 2148
1586 unsigned char o_events = anfd->events; 2149 unsigned char o_events = anfd->events;
1587 unsigned char o_reify = anfd->reify; 2150 unsigned char o_reify = anfd->reify;
1588 2151
1589 anfd->reify = 0; 2152 anfd->reify = 0;
1590 2153
1591 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2154 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1592 { 2155 {
1593 anfd->events = 0; 2156 anfd->events = 0;
1594 2157
… …
1605 2168
1606 fdchangecnt = 0; 2169 fdchangecnt = 0;
1607} 2170}
1608 2171
1609/* something about the given fd changed */ 2172/* something about the given fd changed */
1610inline_size void 2173inline_size
2174void
1611fd_change (EV_P_ int fd, int flags) 2175fd_change (EV_P_ int fd, int flags)
1612{ 2176{
1613 unsigned char reify = anfds [fd].reify; 2177 unsigned char reify = anfds [fd].reify;
1614 anfds [fd].reify |= flags; 2178 anfds [fd].reify |= flags;
1615 2179
1616 if (expect_true (!reify)) 2180 if (expect_true (!reify))
1617 { 2181 {
1618 ++fdchangecnt; 2182 ++fdchangecnt;
1619 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2183 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1620 fdchanges [fdchangecnt - 1] = fd; 2184 fdchanges [fdchangecnt - 1] = fd;
1621 } 2185 }
1622} 2186}
1623 2187
1624/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2188/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1625inline_speed void ecb_cold 2189inline_speed ecb_cold void
1626fd_kill (EV_P_ int fd) 2190fd_kill (EV_P_ int fd)
1627{ 2191{
1628 ev_io *w; 2192 ev_io *w;
1629 2193
1630 while ((w = (ev_io *)anfds [fd].head)) 2194 while ((w = (ev_io *)anfds [fd].head))
… …
1633 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2197 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1634 } 2198 }
1635} 2199}
1636 2200
1637/* check whether the given fd is actually valid, for error recovery */ 2201/* check whether the given fd is actually valid, for error recovery */
1638inline_size int ecb_cold 2202inline_size ecb_cold int
1639fd_valid (int fd) 2203fd_valid (int fd)
1640{ 2204{
1641#ifdef _WIN32 2205#ifdef _WIN32
1642 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2206 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1643#else 2207#else
1644 return fcntl (fd, F_GETFD) != -1; 2208 return fcntl (fd, F_GETFD) != -1;
1645#endif 2209#endif
1646} 2210}
1647 2211
1648/* called on EBADF to verify fds */ 2212/* called on EBADF to verify fds */
1649static void noinline ecb_cold 2213noinline ecb_cold
2214static void
1650fd_ebadf (EV_P) 2215fd_ebadf (EV_P)
1651{ 2216{
1652 int fd; 2217 int fd;
1653 2218
1654 for (fd = 0; fd < anfdmax; ++fd) 2219 for (fd = 0; fd < anfdmax; ++fd)
… …
1656 if (!fd_valid (fd) && errno == EBADF) 2221 if (!fd_valid (fd) && errno == EBADF)
1657 fd_kill (EV_A_ fd); 2222 fd_kill (EV_A_ fd);
1658} 2223}
1659 2224
1660/* called on ENOMEM in select/poll to kill some fds and retry */ 2225/* called on ENOMEM in select/poll to kill some fds and retry */
1661static void noinline ecb_cold 2226noinline ecb_cold
2227static void
1662fd_enomem (EV_P) 2228fd_enomem (EV_P)
1663{ 2229{
1664 int fd; 2230 int fd;
1665 2231
1666 for (fd = anfdmax; fd--; ) 2232 for (fd = anfdmax; fd--; )
… …
1670 break; 2236 break;
1671 } 2237 }
1672} 2238}
1673 2239
1674/* usually called after fork if backend needs to re-arm all fds from scratch */ 2240/* usually called after fork if backend needs to re-arm all fds from scratch */
1675static void noinline 2241noinline
2242static void
1676fd_rearm_all (EV_P) 2243fd_rearm_all (EV_P)
1677{ 2244{
1678 int fd; 2245 int fd;
1679 2246
1680 for (fd = 0; fd < anfdmax; ++fd) 2247 for (fd = 0; fd < anfdmax; ++fd)
… …
1861 2428
1862/*****************************************************************************/ 2429/*****************************************************************************/
1863 2430
1864#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2431#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1865 2432
1866static void noinline ecb_cold 2433noinline ecb_cold
2434static void
1867evpipe_init (EV_P) 2435evpipe_init (EV_P)
1868{ 2436{
1869 if (!ev_is_active (&pipe_w)) 2437 if (!ev_is_active (&pipe_w))
1870 { 2438 {
2439 int fds [2];
2440
1871# if EV_USE_EVENTFD 2441# if EV_USE_EVENTFD
2442 fds [0] = -1;
1872 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2443 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1873 if (evfd < 0 && errno == EINVAL) 2444 if (fds [1] < 0 && errno == EINVAL)
1874 evfd = eventfd (0, 0); 2445 fds [1] = eventfd (0, 0);
1875 2446
1876 if (evfd >= 0) 2447 if (fds [1] < 0)
1877 {
1878 evpipe [0] = -1;
1879 fd_intern (evfd); /* doing it twice doesn't hurt */
1880 ev_io_set (&pipe_w, evfd, EV_READ);
1881 }
1882 else
1883# endif 2448# endif
1884 { 2449 {
1885 while (pipe (evpipe)) 2450 while (pipe (fds))
1886 ev_syserr ("(libev) error creating signal/async pipe"); 2451 ev_syserr ("(libev) error creating signal/async pipe");
1887 2452
1888 fd_intern (evpipe [0]); 2453 fd_intern (fds [0]);
1889 fd_intern (evpipe [1]);
1890 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1891 } 2454 }
1892 2455
2456 evpipe [0] = fds [0];
2457
2458 if (evpipe [1] < 0)
2459 evpipe [1] = fds [1]; /* first call, set write fd */
2460 else
2461 {
2462 /* on subsequent calls, do not change evpipe [1] */
2463 /* so that evpipe_write can always rely on its value. */
2464 /* this branch does not do anything sensible on windows, */
2465 /* so must not be executed on windows */
2466
2467 dup2 (fds [1], evpipe [1]);
2468 close (fds [1]);
2469 }
2470
2471 fd_intern (evpipe [1]);
2472
2473 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1893 ev_io_start (EV_A_ &pipe_w); 2474 ev_io_start (EV_A_ &pipe_w);
1894 ev_unref (EV_A); /* watcher should not keep loop alive */ 2475 ev_unref (EV_A); /* watcher should not keep loop alive */
1895 } 2476 }
1896} 2477}
1897 2478
… …
1918 ECB_MEMORY_FENCE_RELEASE; 2499 ECB_MEMORY_FENCE_RELEASE;
1919 2500
1920 old_errno = errno; /* save errno because write will clobber it */ 2501 old_errno = errno; /* save errno because write will clobber it */
1921 2502
1922#if EV_USE_EVENTFD 2503#if EV_USE_EVENTFD
1923 if (evfd >= 0) 2504 if (evpipe [0] < 0)
1924 { 2505 {
1925 uint64_t counter = 1; 2506 uint64_t counter = 1;
1926 write (evfd, &counter, sizeof (uint64_t)); 2507 write (evpipe [1], &counter, sizeof (uint64_t));
1927 } 2508 }
1928 else 2509 else
1929#endif 2510#endif
1930 { 2511 {
1931#ifdef _WIN32 2512#ifdef _WIN32
1932 WSABUF buf; 2513 WSABUF buf;
1933 DWORD sent; 2514 DWORD sent;
1934 buf.buf = &buf; 2515 buf.buf = (char *)&buf;
1935 buf.len = 1; 2516 buf.len = 1;
1936 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2517 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1937#else 2518#else
1938 write (evpipe [1], &(evpipe [1]), 1); 2519 write (evpipe [1], &(evpipe [1]), 1);
1939#endif 2520#endif
… …
1951 int i; 2532 int i;
1952 2533
1953 if (revents & EV_READ) 2534 if (revents & EV_READ)
1954 { 2535 {
1955#if EV_USE_EVENTFD 2536#if EV_USE_EVENTFD
1956 if (evfd >= 0) 2537 if (evpipe [0] < 0)
1957 { 2538 {
1958 uint64_t counter; 2539 uint64_t counter;
1959 read (evfd, &counter, sizeof (uint64_t)); 2540 read (evpipe [1], &counter, sizeof (uint64_t));
1960 } 2541 }
1961 else 2542 else
1962#endif 2543#endif
1963 { 2544 {
1964 char dummy[4]; 2545 char dummy[4];
… …
2011} 2592}
2012 2593
2013/*****************************************************************************/ 2594/*****************************************************************************/
2014 2595
2015void 2596void
2016ev_feed_signal (int signum) EV_THROW 2597ev_feed_signal (int signum) EV_NOEXCEPT
2017{ 2598{
2018#if EV_MULTIPLICITY 2599#if EV_MULTIPLICITY
2600 EV_P;
2601 ECB_MEMORY_FENCE_ACQUIRE;
2019 EV_P = signals [signum - 1].loop; 2602 EV_A = signals [signum - 1].loop;
2020 2603
2021 if (!EV_A) 2604 if (!EV_A)
2022 return; 2605 return;
2023#endif 2606#endif
2024 2607
2025 if (!ev_active (&pipe_w))
2026 return;
2027
2028 signals [signum - 1].pending = 1; 2608 signals [signum - 1].pending = 1;
2029 evpipe_write (EV_A_ &sig_pending); 2609 evpipe_write (EV_A_ &sig_pending);
2030} 2610}
2031 2611
2032static void 2612static void
… …
2037#endif 2617#endif
2038 2618
2039 ev_feed_signal (signum); 2619 ev_feed_signal (signum);
2040} 2620}
2041 2621
2042void noinline 2622noinline
2623void
2043ev_feed_signal_event (EV_P_ int signum) EV_THROW 2624ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2044{ 2625{
2045 WL w; 2626 WL w;
2046 2627
2047 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2628 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2048 return; 2629 return;
2049 2630
2050 --signum; 2631 --signum;
2051 2632
2052#if EV_MULTIPLICITY 2633#if EV_MULTIPLICITY
… …
2157# include "ev_kqueue.c" 2738# include "ev_kqueue.c"
2158#endif 2739#endif
2159#if EV_USE_EPOLL 2740#if EV_USE_EPOLL
2160# include "ev_epoll.c" 2741# include "ev_epoll.c"
2161#endif 2742#endif
2743#if EV_USE_LINUXAIO
2744# include "ev_linuxaio.c"
2745#endif
2162#if EV_USE_POLL 2746#if EV_USE_POLL
2163# include "ev_poll.c" 2747# include "ev_poll.c"
2164#endif 2748#endif
2165#if EV_USE_SELECT 2749#if EV_USE_SELECT
2166# include "ev_select.c" 2750# include "ev_select.c"
2167#endif 2751#endif
2168 2752
2169int ecb_cold 2753ecb_cold int
2170ev_version_major (void) EV_THROW 2754ev_version_major (void) EV_NOEXCEPT
2171{ 2755{
2172 return EV_VERSION_MAJOR; 2756 return EV_VERSION_MAJOR;
2173} 2757}
2174 2758
2175int ecb_cold 2759ecb_cold int
2176ev_version_minor (void) EV_THROW 2760ev_version_minor (void) EV_NOEXCEPT
2177{ 2761{
2178 return EV_VERSION_MINOR; 2762 return EV_VERSION_MINOR;
2179} 2763}
2180 2764
2181/* return true if we are running with elevated privileges and should ignore env variables */ 2765/* return true if we are running with elevated privileges and should ignore env variables */
2182int inline_size ecb_cold 2766inline_size ecb_cold int
2183enable_secure (void) 2767enable_secure (void)
2184{ 2768{
2185#ifdef _WIN32 2769#ifdef _WIN32
2186 return 0; 2770 return 0;
2187#else 2771#else
2188 return getuid () != geteuid () 2772 return getuid () != geteuid ()
2189 || getgid () != getegid (); 2773 || getgid () != getegid ();
2190#endif 2774#endif
2191} 2775}
2192 2776
2193unsigned int ecb_cold 2777ecb_cold
2778unsigned int
2194ev_supported_backends (void) EV_THROW 2779ev_supported_backends (void) EV_NOEXCEPT
2195{ 2780{
2196 unsigned int flags = 0; 2781 unsigned int flags = 0;
2197 2782
2198 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2783 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2199 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2784 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2200 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2785 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2786 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2201 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2787 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2202 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2788 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2203 2789
2204 return flags; 2790 return flags;
2205} 2791}
2206 2792
2207unsigned int ecb_cold 2793ecb_cold
2794unsigned int
2208ev_recommended_backends (void) EV_THROW 2795ev_recommended_backends (void) EV_NOEXCEPT
2209{ 2796{
2210 unsigned int flags = ev_supported_backends (); 2797 unsigned int flags = ev_supported_backends ();
2211 2798
2212#ifndef __NetBSD__ 2799#ifndef __NetBSD__
2213 /* kqueue is borked on everything but netbsd apparently */ 2800 /* kqueue is borked on everything but netbsd apparently */
… …
2221#endif 2808#endif
2222#ifdef __FreeBSD__ 2809#ifdef __FreeBSD__
2223 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2810 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2224#endif 2811#endif
2225 2812
2813 /* TODO: linuxaio is very experimental */
2814#if !EV_RECOMMEND_LINUXAIO
2815 flags &= ~EVBACKEND_LINUXAIO;
2816#endif
2817
2226 return flags; 2818 return flags;
2227} 2819}
2228 2820
2229unsigned int ecb_cold 2821ecb_cold
2822unsigned int
2230ev_embeddable_backends (void) EV_THROW 2823ev_embeddable_backends (void) EV_NOEXCEPT
2231{ 2824{
2232 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2825 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2233 2826
2234 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2827 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2235 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2828 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2237 2830
2238 return flags; 2831 return flags;
2239} 2832}
2240 2833
2241unsigned int 2834unsigned int
2242ev_backend (EV_P) EV_THROW 2835ev_backend (EV_P) EV_NOEXCEPT
2243{ 2836{
2244 return backend; 2837 return backend;
2245} 2838}
2246 2839
2247#if EV_FEATURE_API 2840#if EV_FEATURE_API
2248unsigned int 2841unsigned int
2249ev_iteration (EV_P) EV_THROW 2842ev_iteration (EV_P) EV_NOEXCEPT
2250{ 2843{
2251 return loop_count; 2844 return loop_count;
2252} 2845}
2253 2846
2254unsigned int 2847unsigned int
2255ev_depth (EV_P) EV_THROW 2848ev_depth (EV_P) EV_NOEXCEPT
2256{ 2849{
2257 return loop_depth; 2850 return loop_depth;
2258} 2851}
2259 2852
2260void 2853void
2261ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2854ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2262{ 2855{
2263 io_blocktime = interval; 2856 io_blocktime = interval;
2264} 2857}
2265 2858
2266void 2859void
2267ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2860ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2268{ 2861{
2269 timeout_blocktime = interval; 2862 timeout_blocktime = interval;
2270} 2863}
2271 2864
2272void 2865void
2273ev_set_userdata (EV_P_ void *data) EV_THROW 2866ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2274{ 2867{
2275 userdata = data; 2868 userdata = data;
2276} 2869}
2277 2870
2278void * 2871void *
2279ev_userdata (EV_P) EV_THROW 2872ev_userdata (EV_P) EV_NOEXCEPT
2280{ 2873{
2281 return userdata; 2874 return userdata;
2282} 2875}
2283 2876
2284void 2877void
2285ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2878ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2286{ 2879{
2287 invoke_cb = invoke_pending_cb; 2880 invoke_cb = invoke_pending_cb;
2288} 2881}
2289 2882
2290void 2883void
2291ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2884ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2292{ 2885{
2293 release_cb = release; 2886 release_cb = release;
2294 acquire_cb = acquire; 2887 acquire_cb = acquire;
2295} 2888}
2296#endif 2889#endif
2297 2890
2298/* initialise a loop structure, must be zero-initialised */ 2891/* initialise a loop structure, must be zero-initialised */
2299static void noinline ecb_cold 2892noinline ecb_cold
2893static void
2300loop_init (EV_P_ unsigned int flags) EV_THROW 2894loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2301{ 2895{
2302 if (!backend) 2896 if (!backend)
2303 { 2897 {
2304 origflags = flags; 2898 origflags = flags;
2305 2899
… …
2350#if EV_ASYNC_ENABLE 2944#if EV_ASYNC_ENABLE
2351 async_pending = 0; 2945 async_pending = 0;
2352#endif 2946#endif
2353 pipe_write_skipped = 0; 2947 pipe_write_skipped = 0;
2354 pipe_write_wanted = 0; 2948 pipe_write_wanted = 0;
2949 evpipe [0] = -1;
2950 evpipe [1] = -1;
2355#if EV_USE_INOTIFY 2951#if EV_USE_INOTIFY
2356 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2952 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2357#endif 2953#endif
2358#if EV_USE_SIGNALFD 2954#if EV_USE_SIGNALFD
2359 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2955 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2361 2957
2362 if (!(flags & EVBACKEND_MASK)) 2958 if (!(flags & EVBACKEND_MASK))
2363 flags |= ev_recommended_backends (); 2959 flags |= ev_recommended_backends ();
2364 2960
2365#if EV_USE_IOCP 2961#if EV_USE_IOCP
2366 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2962 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2367#endif 2963#endif
2368#if EV_USE_PORT 2964#if EV_USE_PORT
2369 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2965 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2370#endif 2966#endif
2371#if EV_USE_KQUEUE 2967#if EV_USE_KQUEUE
2372 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2968 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2969#endif
2970#if EV_USE_LINUXAIO
2971 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2373#endif 2972#endif
2374#if EV_USE_EPOLL 2973#if EV_USE_EPOLL
2375 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2974 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2376#endif 2975#endif
2377#if EV_USE_POLL 2976#if EV_USE_POLL
2378 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2977 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2379#endif 2978#endif
2380#if EV_USE_SELECT 2979#if EV_USE_SELECT
2381 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2980 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2382#endif 2981#endif
2383 2982
2384 ev_prepare_init (&pending_w, pendingcb); 2983 ev_prepare_init (&pending_w, pendingcb);
2385 2984
2386#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2985#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2389#endif 2988#endif
2390 } 2989 }
2391} 2990}
2392 2991
2393/* free up a loop structure */ 2992/* free up a loop structure */
2394void ecb_cold 2993ecb_cold
2994void
2395ev_loop_destroy (EV_P) 2995ev_loop_destroy (EV_P)
2396{ 2996{
2397 int i; 2997 int i;
2398 2998
2399#if EV_MULTIPLICITY 2999#if EV_MULTIPLICITY
… …
2422 if (ev_is_active (&pipe_w)) 3022 if (ev_is_active (&pipe_w))
2423 { 3023 {
2424 /*ev_ref (EV_A);*/ 3024 /*ev_ref (EV_A);*/
2425 /*ev_io_stop (EV_A_ &pipe_w);*/ 3025 /*ev_io_stop (EV_A_ &pipe_w);*/
2426 3026
2427#if EV_USE_EVENTFD
2428 if (evfd >= 0)
2429 close (evfd);
2430#endif
2431
2432 if (evpipe [0] >= 0)
2433 {
2434 EV_WIN32_CLOSE_FD (evpipe [0]); 3027 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2435 EV_WIN32_CLOSE_FD (evpipe [1]); 3028 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2436 }
2437 } 3029 }
2438 3030
2439#if EV_USE_SIGNALFD 3031#if EV_USE_SIGNALFD
2440 if (ev_is_active (&sigfd_w)) 3032 if (ev_is_active (&sigfd_w))
2441 close (sigfd); 3033 close (sigfd);
… …
2448 3040
2449 if (backend_fd >= 0) 3041 if (backend_fd >= 0)
2450 close (backend_fd); 3042 close (backend_fd);
2451 3043
2452#if EV_USE_IOCP 3044#if EV_USE_IOCP
2453 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3045 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2454#endif 3046#endif
2455#if EV_USE_PORT 3047#if EV_USE_PORT
2456 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3048 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2457#endif 3049#endif
2458#if EV_USE_KQUEUE 3050#if EV_USE_KQUEUE
2459 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3051 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3052#endif
3053#if EV_USE_LINUXAIO
3054 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2460#endif 3055#endif
2461#if EV_USE_EPOLL 3056#if EV_USE_EPOLL
2462 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3057 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2463#endif 3058#endif
2464#if EV_USE_POLL 3059#if EV_USE_POLL
2465 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3060 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2466#endif 3061#endif
2467#if EV_USE_SELECT 3062#if EV_USE_SELECT
2468 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3063 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2469#endif 3064#endif
2470 3065
2471 for (i = NUMPRI; i--; ) 3066 for (i = NUMPRI; i--; )
2472 { 3067 {
2473 array_free (pending, [i]); 3068 array_free (pending, [i]);
… …
2515 3110
2516inline_size void 3111inline_size void
2517loop_fork (EV_P) 3112loop_fork (EV_P)
2518{ 3113{
2519#if EV_USE_PORT 3114#if EV_USE_PORT
2520 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3115 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2521#endif 3116#endif
2522#if EV_USE_KQUEUE 3117#if EV_USE_KQUEUE
2523 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3118 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3119#endif
3120#if EV_USE_LINUXAIO
3121 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2524#endif 3122#endif
2525#if EV_USE_EPOLL 3123#if EV_USE_EPOLL
2526 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3124 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2527#endif 3125#endif
2528#if EV_USE_INOTIFY 3126#if EV_USE_INOTIFY
2529 infy_fork (EV_A); 3127 infy_fork (EV_A);
2530#endif 3128#endif
2531 3129
3130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2532 if (ev_is_active (&pipe_w)) 3131 if (ev_is_active (&pipe_w) && postfork != 2)
2533 { 3132 {
2534 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3133 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2535 3134
2536 ev_ref (EV_A); 3135 ev_ref (EV_A);
2537 ev_io_stop (EV_A_ &pipe_w); 3136 ev_io_stop (EV_A_ &pipe_w);
2538 3137
2539#if EV_USE_EVENTFD
2540 if (evfd >= 0)
2541 close (evfd);
2542#endif
2543
2544 if (evpipe [0] >= 0) 3138 if (evpipe [0] >= 0)
2545 {
2546 EV_WIN32_CLOSE_FD (evpipe [0]); 3139 EV_WIN32_CLOSE_FD (evpipe [0]);
2547 EV_WIN32_CLOSE_FD (evpipe [1]);
2548 }
2549 3140
2550#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2551 evpipe_init (EV_A); 3141 evpipe_init (EV_A);
2552 /* now iterate over everything, in case we missed something */ 3142 /* iterate over everything, in case we missed something before */
2553 pipecb (EV_A_ &pipe_w, EV_READ); 3143 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2554#endif
2555 } 3144 }
3145#endif
2556 3146
2557 postfork = 0; 3147 postfork = 0;
2558} 3148}
2559 3149
2560#if EV_MULTIPLICITY 3150#if EV_MULTIPLICITY
2561 3151
3152ecb_cold
2562struct ev_loop * ecb_cold 3153struct ev_loop *
2563ev_loop_new (unsigned int flags) EV_THROW 3154ev_loop_new (unsigned int flags) EV_NOEXCEPT
2564{ 3155{
2565 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3156 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2566 3157
2567 memset (EV_A, 0, sizeof (struct ev_loop)); 3158 memset (EV_A, 0, sizeof (struct ev_loop));
2568 loop_init (EV_A_ flags); 3159 loop_init (EV_A_ flags);
… …
2575} 3166}
2576 3167
2577#endif /* multiplicity */ 3168#endif /* multiplicity */
2578 3169
2579#if EV_VERIFY 3170#if EV_VERIFY
2580static void noinline ecb_cold 3171noinline ecb_cold
3172static void
2581verify_watcher (EV_P_ W w) 3173verify_watcher (EV_P_ W w)
2582{ 3174{
2583 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3175 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2584 3176
2585 if (w->pending) 3177 if (w->pending)
2586 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3178 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2587} 3179}
2588 3180
2589static void noinline ecb_cold 3181noinline ecb_cold
3182static void
2590verify_heap (EV_P_ ANHE *heap, int N) 3183verify_heap (EV_P_ ANHE *heap, int N)
2591{ 3184{
2592 int i; 3185 int i;
2593 3186
2594 for (i = HEAP0; i < N + HEAP0; ++i) 3187 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2599 3192
2600 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3193 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2601 } 3194 }
2602} 3195}
2603 3196
2604static void noinline ecb_cold 3197noinline ecb_cold
3198static void
2605array_verify (EV_P_ W *ws, int cnt) 3199array_verify (EV_P_ W *ws, int cnt)
2606{ 3200{
2607 while (cnt--) 3201 while (cnt--)
2608 { 3202 {
2609 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3203 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2612} 3206}
2613#endif 3207#endif
2614 3208
2615#if EV_FEATURE_API 3209#if EV_FEATURE_API
2616void ecb_cold 3210void ecb_cold
2617ev_verify (EV_P) EV_THROW 3211ev_verify (EV_P) EV_NOEXCEPT
2618{ 3212{
2619#if EV_VERIFY 3213#if EV_VERIFY
2620 int i; 3214 int i;
2621 WL w, w2; 3215 WL w, w2;
2622 3216
… …
2698#endif 3292#endif
2699} 3293}
2700#endif 3294#endif
2701 3295
2702#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
3297ecb_cold
2703struct ev_loop * ecb_cold 3298struct ev_loop *
2704#else 3299#else
2705int 3300int
2706#endif 3301#endif
2707ev_default_loop (unsigned int flags) EV_THROW 3302ev_default_loop (unsigned int flags) EV_NOEXCEPT
2708{ 3303{
2709 if (!ev_default_loop_ptr) 3304 if (!ev_default_loop_ptr)
2710 { 3305 {
2711#if EV_MULTIPLICITY 3306#if EV_MULTIPLICITY
2712 EV_P = ev_default_loop_ptr = &default_loop_struct; 3307 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2731 3326
2732 return ev_default_loop_ptr; 3327 return ev_default_loop_ptr;
2733} 3328}
2734 3329
2735void 3330void
2736ev_loop_fork (EV_P) EV_THROW 3331ev_loop_fork (EV_P) EV_NOEXCEPT
2737{ 3332{
2738 postfork = 1; 3333 postfork = 1;
2739} 3334}
2740 3335
2741/*****************************************************************************/ 3336/*****************************************************************************/
… …
2745{ 3340{
2746 EV_CB_INVOKE ((W)w, revents); 3341 EV_CB_INVOKE ((W)w, revents);
2747} 3342}
2748 3343
2749unsigned int 3344unsigned int
2750ev_pending_count (EV_P) EV_THROW 3345ev_pending_count (EV_P) EV_NOEXCEPT
2751{ 3346{
2752 int pri; 3347 int pri;
2753 unsigned int count = 0; 3348 unsigned int count = 0;
2754 3349
2755 for (pri = NUMPRI; pri--; ) 3350 for (pri = NUMPRI; pri--; )
2756 count += pendingcnt [pri]; 3351 count += pendingcnt [pri];
2757 3352
2758 return count; 3353 return count;
2759} 3354}
2760 3355
2761void noinline 3356noinline
3357void
2762ev_invoke_pending (EV_P) 3358ev_invoke_pending (EV_P)
2763{ 3359{
2764 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ 3360 pendingpri = NUMPRI;
3361
3362 do
3363 {
3364 --pendingpri;
3365
3366 /* pendingpri possibly gets modified in the inner loop */
2765 while (pendingcnt [pendingpri]) 3367 while (pendingcnt [pendingpri])
2766 { 3368 {
2767 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3369 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2768 3370
2769 p->w->pending = 0; 3371 p->w->pending = 0;
2770 EV_CB_INVOKE (p->w, p->events); 3372 EV_CB_INVOKE (p->w, p->events);
2771 EV_FREQUENT_CHECK; 3373 EV_FREQUENT_CHECK;
2772 } 3374 }
3375 }
3376 while (pendingpri);
2773} 3377}
2774 3378
2775#if EV_IDLE_ENABLE 3379#if EV_IDLE_ENABLE
2776/* make idle watchers pending. this handles the "call-idle */ 3380/* make idle watchers pending. this handles the "call-idle */
2777/* only when higher priorities are idle" logic */ 3381/* only when higher priorities are idle" logic */
… …
2835 } 3439 }
2836} 3440}
2837 3441
2838#if EV_PERIODIC_ENABLE 3442#if EV_PERIODIC_ENABLE
2839 3443
2840static void noinline 3444noinline
3445static void
2841periodic_recalc (EV_P_ ev_periodic *w) 3446periodic_recalc (EV_P_ ev_periodic *w)
2842{ 3447{
2843 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3448 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2844 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3449 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2845 3450
… …
2903 } 3508 }
2904} 3509}
2905 3510
2906/* simply recalculate all periodics */ 3511/* simply recalculate all periodics */
2907/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3512/* TODO: maybe ensure that at least one event happens when jumping forward? */
2908static void noinline ecb_cold 3513noinline ecb_cold
3514static void
2909periodics_reschedule (EV_P) 3515periodics_reschedule (EV_P)
2910{ 3516{
2911 int i; 3517 int i;
2912 3518
2913 /* adjust periodics after time jump */ 3519 /* adjust periodics after time jump */
… …
2926 reheap (periodics, periodiccnt); 3532 reheap (periodics, periodiccnt);
2927} 3533}
2928#endif 3534#endif
2929 3535
2930/* adjust all timers by a given offset */ 3536/* adjust all timers by a given offset */
2931static void noinline ecb_cold 3537noinline ecb_cold
3538static void
2932timers_reschedule (EV_P_ ev_tstamp adjust) 3539timers_reschedule (EV_P_ ev_tstamp adjust)
2933{ 3540{
2934 int i; 3541 int i;
2935 3542
2936 for (i = 0; i < timercnt; ++i) 3543 for (i = 0; i < timercnt; ++i)
… …
3135 backend_poll (EV_A_ waittime); 3742 backend_poll (EV_A_ waittime);
3136 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3743 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3137 3744
3138 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3745 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3139 3746
3747 ECB_MEMORY_FENCE_ACQUIRE;
3140 if (pipe_write_skipped) 3748 if (pipe_write_skipped)
3141 { 3749 {
3142 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3750 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3143 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3751 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3144 } 3752 }
3145 3753
3146
3147 /* update ev_rt_now, do magic */ 3754 /* update ev_rt_now, do magic */
3148 time_update (EV_A_ waittime + sleeptime); 3755 time_update (EV_A_ waittime + sleeptime);
3149 } 3756 }
3150 3757
3151 /* queue pending timers and reschedule them */ 3758 /* queue pending timers and reschedule them */
… …
3182 3789
3183 return activecnt; 3790 return activecnt;
3184} 3791}
3185 3792
3186void 3793void
3187ev_break (EV_P_ int how) EV_THROW 3794ev_break (EV_P_ int how) EV_NOEXCEPT
3188{ 3795{
3189 loop_done = how; 3796 loop_done = how;
3190} 3797}
3191 3798
3192void 3799void
3193ev_ref (EV_P) EV_THROW 3800ev_ref (EV_P) EV_NOEXCEPT
3194{ 3801{
3195 ++activecnt; 3802 ++activecnt;
3196} 3803}
3197 3804
3198void 3805void
3199ev_unref (EV_P) EV_THROW 3806ev_unref (EV_P) EV_NOEXCEPT
3200{ 3807{
3201 --activecnt; 3808 --activecnt;
3202} 3809}
3203 3810
3204void 3811void
3205ev_now_update (EV_P) EV_THROW 3812ev_now_update (EV_P) EV_NOEXCEPT
3206{ 3813{
3207 time_update (EV_A_ 1e100); 3814 time_update (EV_A_ 1e100);
3208} 3815}
3209 3816
3210void 3817void
3211ev_suspend (EV_P) EV_THROW 3818ev_suspend (EV_P) EV_NOEXCEPT
3212{ 3819{
3213 ev_now_update (EV_A); 3820 ev_now_update (EV_A);
3214} 3821}
3215 3822
3216void 3823void
3217ev_resume (EV_P) EV_THROW 3824ev_resume (EV_P) EV_NOEXCEPT
3218{ 3825{
3219 ev_tstamp mn_prev = mn_now; 3826 ev_tstamp mn_prev = mn_now;
3220 3827
3221 ev_now_update (EV_A); 3828 ev_now_update (EV_A);
3222 timers_reschedule (EV_A_ mn_now - mn_prev); 3829 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3261 w->pending = 0; 3868 w->pending = 0;
3262 } 3869 }
3263} 3870}
3264 3871
3265int 3872int
3266ev_clear_pending (EV_P_ void *w) EV_THROW 3873ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3267{ 3874{
3268 W w_ = (W)w; 3875 W w_ = (W)w;
3269 int pending = w_->pending; 3876 int pending = w_->pending;
3270 3877
3271 if (expect_true (pending)) 3878 if (expect_true (pending))
… …
3303 w->active = 0; 3910 w->active = 0;
3304} 3911}
3305 3912
3306/*****************************************************************************/ 3913/*****************************************************************************/
3307 3914
3308void noinline 3915noinline
3916void
3309ev_io_start (EV_P_ ev_io *w) EV_THROW 3917ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3310{ 3918{
3311 int fd = w->fd; 3919 int fd = w->fd;
3312 3920
3313 if (expect_false (ev_is_active (w))) 3921 if (expect_false (ev_is_active (w)))
3314 return; 3922 return;
3315 3923
3316 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3924 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3317 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3925 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3318 3926
3927#if EV_VERIFY >= 2
3928 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
3929#endif
3319 EV_FREQUENT_CHECK; 3930 EV_FREQUENT_CHECK;
3320 3931
3321 ev_start (EV_A_ (W)w, 1); 3932 ev_start (EV_A_ (W)w, 1);
3322 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3933 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3323 wlist_add (&anfds[fd].head, (WL)w); 3934 wlist_add (&anfds[fd].head, (WL)w);
3324 3935
3325 /* common bug, apparently */ 3936 /* common bug, apparently */
3326 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3937 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3327 3938
… …
3329 w->events &= ~EV__IOFDSET; 3940 w->events &= ~EV__IOFDSET;
3330 3941
3331 EV_FREQUENT_CHECK; 3942 EV_FREQUENT_CHECK;
3332} 3943}
3333 3944
3334void noinline 3945noinline
3946void
3335ev_io_stop (EV_P_ ev_io *w) EV_THROW 3947ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3336{ 3948{
3337 clear_pending (EV_A_ (W)w); 3949 clear_pending (EV_A_ (W)w);
3338 if (expect_false (!ev_is_active (w))) 3950 if (expect_false (!ev_is_active (w)))
3339 return; 3951 return;
3340 3952
3341 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 3953 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3342 3954
3955#if EV_VERIFY >= 2
3956 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
3957#endif
3343 EV_FREQUENT_CHECK; 3958 EV_FREQUENT_CHECK;
3344 3959
3345 wlist_del (&anfds[w->fd].head, (WL)w); 3960 wlist_del (&anfds[w->fd].head, (WL)w);
3346 ev_stop (EV_A_ (W)w); 3961 ev_stop (EV_A_ (W)w);
3347 3962
3348 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3963 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3349 3964
3350 EV_FREQUENT_CHECK; 3965 EV_FREQUENT_CHECK;
3351} 3966}
3352 3967
3353void noinline 3968noinline
3969void
3354ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3970ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3355{ 3971{
3356 if (expect_false (ev_is_active (w))) 3972 if (expect_false (ev_is_active (w)))
3357 return; 3973 return;
3358 3974
3359 ev_at (w) += mn_now; 3975 ev_at (w) += mn_now;
… …
3362 3978
3363 EV_FREQUENT_CHECK; 3979 EV_FREQUENT_CHECK;
3364 3980
3365 ++timercnt; 3981 ++timercnt;
3366 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3982 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3367 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3983 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3368 ANHE_w (timers [ev_active (w)]) = (WT)w; 3984 ANHE_w (timers [ev_active (w)]) = (WT)w;
3369 ANHE_at_cache (timers [ev_active (w)]); 3985 ANHE_at_cache (timers [ev_active (w)]);
3370 upheap (timers, ev_active (w)); 3986 upheap (timers, ev_active (w));
3371 3987
3372 EV_FREQUENT_CHECK; 3988 EV_FREQUENT_CHECK;
3373 3989
3374 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3990 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3375} 3991}
3376 3992
3377void noinline 3993noinline
3994void
3378ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3995ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3379{ 3996{
3380 clear_pending (EV_A_ (W)w); 3997 clear_pending (EV_A_ (W)w);
3381 if (expect_false (!ev_is_active (w))) 3998 if (expect_false (!ev_is_active (w)))
3382 return; 3999 return;
3383 4000
… …
3402 ev_stop (EV_A_ (W)w); 4019 ev_stop (EV_A_ (W)w);
3403 4020
3404 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
3405} 4022}
3406 4023
3407void noinline 4024noinline
4025void
3408ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4026ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3409{ 4027{
3410 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
3411 4029
3412 clear_pending (EV_A_ (W)w); 4030 clear_pending (EV_A_ (W)w);
3413 4031
… …
3430 4048
3431 EV_FREQUENT_CHECK; 4049 EV_FREQUENT_CHECK;
3432} 4050}
3433 4051
3434ev_tstamp 4052ev_tstamp
3435ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4053ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3436{ 4054{
3437 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4055 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3438} 4056}
3439 4057
3440#if EV_PERIODIC_ENABLE 4058#if EV_PERIODIC_ENABLE
3441void noinline 4059noinline
4060void
3442ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4061ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3443{ 4062{
3444 if (expect_false (ev_is_active (w))) 4063 if (expect_false (ev_is_active (w)))
3445 return; 4064 return;
3446 4065
3447 if (w->reschedule_cb) 4066 if (w->reschedule_cb)
… …
3456 4075
3457 EV_FREQUENT_CHECK; 4076 EV_FREQUENT_CHECK;
3458 4077
3459 ++periodiccnt; 4078 ++periodiccnt;
3460 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4079 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3461 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4080 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3462 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4081 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3463 ANHE_at_cache (periodics [ev_active (w)]); 4082 ANHE_at_cache (periodics [ev_active (w)]);
3464 upheap (periodics, ev_active (w)); 4083 upheap (periodics, ev_active (w));
3465 4084
3466 EV_FREQUENT_CHECK; 4085 EV_FREQUENT_CHECK;
3467 4086
3468 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4087 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3469} 4088}
3470 4089
3471void noinline 4090noinline
4091void
3472ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4092ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3473{ 4093{
3474 clear_pending (EV_A_ (W)w); 4094 clear_pending (EV_A_ (W)w);
3475 if (expect_false (!ev_is_active (w))) 4095 if (expect_false (!ev_is_active (w)))
3476 return; 4096 return;
3477 4097
… …
3494 ev_stop (EV_A_ (W)w); 4114 ev_stop (EV_A_ (W)w);
3495 4115
3496 EV_FREQUENT_CHECK; 4116 EV_FREQUENT_CHECK;
3497} 4117}
3498 4118
3499void noinline 4119noinline
4120void
3500ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4121ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3501{ 4122{
3502 /* TODO: use adjustheap and recalculation */ 4123 /* TODO: use adjustheap and recalculation */
3503 ev_periodic_stop (EV_A_ w); 4124 ev_periodic_stop (EV_A_ w);
3504 ev_periodic_start (EV_A_ w); 4125 ev_periodic_start (EV_A_ w);
3505} 4126}
… …
3509# define SA_RESTART 0 4130# define SA_RESTART 0
3510#endif 4131#endif
3511 4132
3512#if EV_SIGNAL_ENABLE 4133#if EV_SIGNAL_ENABLE
3513 4134
3514void noinline 4135noinline
4136void
3515ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4137ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3516{ 4138{
3517 if (expect_false (ev_is_active (w))) 4139 if (expect_false (ev_is_active (w)))
3518 return; 4140 return;
3519 4141
3520 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4142 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3522#if EV_MULTIPLICITY 4144#if EV_MULTIPLICITY
3523 assert (("libev: a signal must not be attached to two different loops", 4145 assert (("libev: a signal must not be attached to two different loops",
3524 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4146 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3525 4147
3526 signals [w->signum - 1].loop = EV_A; 4148 signals [w->signum - 1].loop = EV_A;
4149 ECB_MEMORY_FENCE_RELEASE;
3527#endif 4150#endif
3528 4151
3529 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
3530 4153
3531#if EV_USE_SIGNALFD 4154#if EV_USE_SIGNALFD
… …
3590 } 4213 }
3591 4214
3592 EV_FREQUENT_CHECK; 4215 EV_FREQUENT_CHECK;
3593} 4216}
3594 4217
3595void noinline 4218noinline
4219void
3596ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4220ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3597{ 4221{
3598 clear_pending (EV_A_ (W)w); 4222 clear_pending (EV_A_ (W)w);
3599 if (expect_false (!ev_is_active (w))) 4223 if (expect_false (!ev_is_active (w)))
3600 return; 4224 return;
3601 4225
… …
3632#endif 4256#endif
3633 4257
3634#if EV_CHILD_ENABLE 4258#if EV_CHILD_ENABLE
3635 4259
3636void 4260void
3637ev_child_start (EV_P_ ev_child *w) EV_THROW 4261ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3638{ 4262{
3639#if EV_MULTIPLICITY 4263#if EV_MULTIPLICITY
3640 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4264 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3641#endif 4265#endif
3642 if (expect_false (ev_is_active (w))) 4266 if (expect_false (ev_is_active (w)))
… …
3649 4273
3650 EV_FREQUENT_CHECK; 4274 EV_FREQUENT_CHECK;
3651} 4275}
3652 4276
3653void 4277void
3654ev_child_stop (EV_P_ ev_child *w) EV_THROW 4278ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3655{ 4279{
3656 clear_pending (EV_A_ (W)w); 4280 clear_pending (EV_A_ (W)w);
3657 if (expect_false (!ev_is_active (w))) 4281 if (expect_false (!ev_is_active (w)))
3658 return; 4282 return;
3659 4283
… …
3676 4300
3677#define DEF_STAT_INTERVAL 5.0074891 4301#define DEF_STAT_INTERVAL 5.0074891
3678#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4302#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3679#define MIN_STAT_INTERVAL 0.1074891 4303#define MIN_STAT_INTERVAL 0.1074891
3680 4304
3681static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4305noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3682 4306
3683#if EV_USE_INOTIFY 4307#if EV_USE_INOTIFY
3684 4308
3685/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4309/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3686# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4310# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3687 4311
3688static void noinline 4312noinline
4313static void
3689infy_add (EV_P_ ev_stat *w) 4314infy_add (EV_P_ ev_stat *w)
3690{ 4315{
3691 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); 4316 w->wd = inotify_add_watch (fs_fd, w->path,
4317 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4318 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4319 | IN_DONT_FOLLOW | IN_MASK_ADD);
3692 4320
3693 if (w->wd >= 0) 4321 if (w->wd >= 0)
3694 { 4322 {
3695 struct statfs sfs; 4323 struct statfs sfs;
3696 4324
… …
3700 4328
3701 if (!fs_2625) 4329 if (!fs_2625)
3702 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4330 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3703 else if (!statfs (w->path, &sfs) 4331 else if (!statfs (w->path, &sfs)
3704 && (sfs.f_type == 0x1373 /* devfs */ 4332 && (sfs.f_type == 0x1373 /* devfs */
4333 || sfs.f_type == 0x4006 /* fat */
4334 || sfs.f_type == 0x4d44 /* msdos */
3705 || sfs.f_type == 0xEF53 /* ext2/3 */ 4335 || sfs.f_type == 0xEF53 /* ext2/3 */
4336 || sfs.f_type == 0x72b6 /* jffs2 */
4337 || sfs.f_type == 0x858458f6 /* ramfs */
4338 || sfs.f_type == 0x5346544e /* ntfs */
3706 || sfs.f_type == 0x3153464a /* jfs */ 4339 || sfs.f_type == 0x3153464a /* jfs */
4340 || sfs.f_type == 0x9123683e /* btrfs */
3707 || sfs.f_type == 0x52654973 /* reiser3 */ 4341 || sfs.f_type == 0x52654973 /* reiser3 */
3708 || sfs.f_type == 0x01021994 /* tempfs */ 4342 || sfs.f_type == 0x01021994 /* tmpfs */
3709 || sfs.f_type == 0x58465342 /* xfs */)) 4343 || sfs.f_type == 0x58465342 /* xfs */))
3710 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4344 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3711 else 4345 else
3712 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4346 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3713 } 4347 }
… …
3748 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4382 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3749 ev_timer_again (EV_A_ &w->timer); 4383 ev_timer_again (EV_A_ &w->timer);
3750 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4384 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3751} 4385}
3752 4386
3753static void noinline 4387noinline
4388static void
3754infy_del (EV_P_ ev_stat *w) 4389infy_del (EV_P_ ev_stat *w)
3755{ 4390{
3756 int slot; 4391 int slot;
3757 int wd = w->wd; 4392 int wd = w->wd;
3758 4393
… …
3765 4400
3766 /* remove this watcher, if others are watching it, they will rearm */ 4401 /* remove this watcher, if others are watching it, they will rearm */
3767 inotify_rm_watch (fs_fd, wd); 4402 inotify_rm_watch (fs_fd, wd);
3768} 4403}
3769 4404
3770static void noinline 4405noinline
4406static void
3771infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4407infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3772{ 4408{
3773 if (slot < 0) 4409 if (slot < 0)
3774 /* overflow, need to check for all hash slots */ 4410 /* overflow, need to check for all hash slots */
3775 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4411 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3811 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4447 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3812 ofs += sizeof (struct inotify_event) + ev->len; 4448 ofs += sizeof (struct inotify_event) + ev->len;
3813 } 4449 }
3814} 4450}
3815 4451
3816inline_size void ecb_cold 4452inline_size ecb_cold
4453void
3817ev_check_2625 (EV_P) 4454ev_check_2625 (EV_P)
3818{ 4455{
3819 /* kernels < 2.6.25 are borked 4456 /* kernels < 2.6.25 are borked
3820 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4457 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3821 */ 4458 */
… …
3911#else 4548#else
3912# define EV_LSTAT(p,b) lstat (p, b) 4549# define EV_LSTAT(p,b) lstat (p, b)
3913#endif 4550#endif
3914 4551
3915void 4552void
3916ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4553ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3917{ 4554{
3918 if (lstat (w->path, &w->attr) < 0) 4555 if (lstat (w->path, &w->attr) < 0)
3919 w->attr.st_nlink = 0; 4556 w->attr.st_nlink = 0;
3920 else if (!w->attr.st_nlink) 4557 else if (!w->attr.st_nlink)
3921 w->attr.st_nlink = 1; 4558 w->attr.st_nlink = 1;
3922} 4559}
3923 4560
3924static void noinline 4561noinline
4562static void
3925stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4563stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3926{ 4564{
3927 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4565 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3928 4566
3929 ev_statdata prev = w->attr; 4567 ev_statdata prev = w->attr;
… …
3960 ev_feed_event (EV_A_ w, EV_STAT); 4598 ev_feed_event (EV_A_ w, EV_STAT);
3961 } 4599 }
3962} 4600}
3963 4601
3964void 4602void
3965ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4603ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3966{ 4604{
3967 if (expect_false (ev_is_active (w))) 4605 if (expect_false (ev_is_active (w)))
3968 return; 4606 return;
3969 4607
3970 ev_stat_stat (EV_A_ w); 4608 ev_stat_stat (EV_A_ w);
… …
3991 4629
3992 EV_FREQUENT_CHECK; 4630 EV_FREQUENT_CHECK;
3993} 4631}
3994 4632
3995void 4633void
3996ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4634ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
3997{ 4635{
3998 clear_pending (EV_A_ (W)w); 4636 clear_pending (EV_A_ (W)w);
3999 if (expect_false (!ev_is_active (w))) 4637 if (expect_false (!ev_is_active (w)))
4000 return; 4638 return;
4001 4639
… …
4017} 4655}
4018#endif 4656#endif
4019 4657
4020#if EV_IDLE_ENABLE 4658#if EV_IDLE_ENABLE
4021void 4659void
4022ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4660ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4023{ 4661{
4024 if (expect_false (ev_is_active (w))) 4662 if (expect_false (ev_is_active (w)))
4025 return; 4663 return;
4026 4664
4027 pri_adjust (EV_A_ (W)w); 4665 pri_adjust (EV_A_ (W)w);
… …
4032 int active = ++idlecnt [ABSPRI (w)]; 4670 int active = ++idlecnt [ABSPRI (w)];
4033 4671
4034 ++idleall; 4672 ++idleall;
4035 ev_start (EV_A_ (W)w, active); 4673 ev_start (EV_A_ (W)w, active);
4036 4674
4037 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4675 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4038 idles [ABSPRI (w)][active - 1] = w; 4676 idles [ABSPRI (w)][active - 1] = w;
4039 } 4677 }
4040 4678
4041 EV_FREQUENT_CHECK; 4679 EV_FREQUENT_CHECK;
4042} 4680}
4043 4681
4044void 4682void
4045ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4683ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4046{ 4684{
4047 clear_pending (EV_A_ (W)w); 4685 clear_pending (EV_A_ (W)w);
4048 if (expect_false (!ev_is_active (w))) 4686 if (expect_false (!ev_is_active (w)))
4049 return; 4687 return;
4050 4688
… …
4064} 4702}
4065#endif 4703#endif
4066 4704
4067#if EV_PREPARE_ENABLE 4705#if EV_PREPARE_ENABLE
4068void 4706void
4069ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4707ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4070{ 4708{
4071 if (expect_false (ev_is_active (w))) 4709 if (expect_false (ev_is_active (w)))
4072 return; 4710 return;
4073 4711
4074 EV_FREQUENT_CHECK; 4712 EV_FREQUENT_CHECK;
4075 4713
4076 ev_start (EV_A_ (W)w, ++preparecnt); 4714 ev_start (EV_A_ (W)w, ++preparecnt);
4077 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4715 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4078 prepares [preparecnt - 1] = w; 4716 prepares [preparecnt - 1] = w;
4079 4717
4080 EV_FREQUENT_CHECK; 4718 EV_FREQUENT_CHECK;
4081} 4719}
4082 4720
4083void 4721void
4084ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4722ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4085{ 4723{
4086 clear_pending (EV_A_ (W)w); 4724 clear_pending (EV_A_ (W)w);
4087 if (expect_false (!ev_is_active (w))) 4725 if (expect_false (!ev_is_active (w)))
4088 return; 4726 return;
4089 4727
… …
4102} 4740}
4103#endif 4741#endif
4104 4742
4105#if EV_CHECK_ENABLE 4743#if EV_CHECK_ENABLE
4106void 4744void
4107ev_check_start (EV_P_ ev_check *w) EV_THROW 4745ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4108{ 4746{
4109 if (expect_false (ev_is_active (w))) 4747 if (expect_false (ev_is_active (w)))
4110 return; 4748 return;
4111 4749
4112 EV_FREQUENT_CHECK; 4750 EV_FREQUENT_CHECK;
4113 4751
4114 ev_start (EV_A_ (W)w, ++checkcnt); 4752 ev_start (EV_A_ (W)w, ++checkcnt);
4115 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4753 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4116 checks [checkcnt - 1] = w; 4754 checks [checkcnt - 1] = w;
4117 4755
4118 EV_FREQUENT_CHECK; 4756 EV_FREQUENT_CHECK;
4119} 4757}
4120 4758
4121void 4759void
4122ev_check_stop (EV_P_ ev_check *w) EV_THROW 4760ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4123{ 4761{
4124 clear_pending (EV_A_ (W)w); 4762 clear_pending (EV_A_ (W)w);
4125 if (expect_false (!ev_is_active (w))) 4763 if (expect_false (!ev_is_active (w)))
4126 return; 4764 return;
4127 4765
… …
4139 EV_FREQUENT_CHECK; 4777 EV_FREQUENT_CHECK;
4140} 4778}
4141#endif 4779#endif
4142 4780
4143#if EV_EMBED_ENABLE 4781#if EV_EMBED_ENABLE
4144void noinline 4782noinline
4783void
4145ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4784ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4146{ 4785{
4147 ev_run (w->other, EVRUN_NOWAIT); 4786 ev_run (w->other, EVRUN_NOWAIT);
4148} 4787}
4149 4788
4150static void 4789static void
… …
4198 ev_idle_stop (EV_A_ idle); 4837 ev_idle_stop (EV_A_ idle);
4199} 4838}
4200#endif 4839#endif
4201 4840
4202void 4841void
4203ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4842ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4204{ 4843{
4205 if (expect_false (ev_is_active (w))) 4844 if (expect_false (ev_is_active (w)))
4206 return; 4845 return;
4207 4846
4208 { 4847 {
… …
4229 4868
4230 EV_FREQUENT_CHECK; 4869 EV_FREQUENT_CHECK;
4231} 4870}
4232 4871
4233void 4872void
4234ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4873ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4235{ 4874{
4236 clear_pending (EV_A_ (W)w); 4875 clear_pending (EV_A_ (W)w);
4237 if (expect_false (!ev_is_active (w))) 4876 if (expect_false (!ev_is_active (w)))
4238 return; 4877 return;
4239 4878
… …
4249} 4888}
4250#endif 4889#endif
4251 4890
4252#if EV_FORK_ENABLE 4891#if EV_FORK_ENABLE
4253void 4892void
4254ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4893ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4255{ 4894{
4256 if (expect_false (ev_is_active (w))) 4895 if (expect_false (ev_is_active (w)))
4257 return; 4896 return;
4258 4897
4259 EV_FREQUENT_CHECK; 4898 EV_FREQUENT_CHECK;
4260 4899
4261 ev_start (EV_A_ (W)w, ++forkcnt); 4900 ev_start (EV_A_ (W)w, ++forkcnt);
4262 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4901 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4263 forks [forkcnt - 1] = w; 4902 forks [forkcnt - 1] = w;
4264 4903
4265 EV_FREQUENT_CHECK; 4904 EV_FREQUENT_CHECK;
4266} 4905}
4267 4906
4268void 4907void
4269ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4908ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4270{ 4909{
4271 clear_pending (EV_A_ (W)w); 4910 clear_pending (EV_A_ (W)w);
4272 if (expect_false (!ev_is_active (w))) 4911 if (expect_false (!ev_is_active (w)))
4273 return; 4912 return;
4274 4913
… …
4287} 4926}
4288#endif 4927#endif
4289 4928
4290#if EV_CLEANUP_ENABLE 4929#if EV_CLEANUP_ENABLE
4291void 4930void
4292ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4931ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4293{ 4932{
4294 if (expect_false (ev_is_active (w))) 4933 if (expect_false (ev_is_active (w)))
4295 return; 4934 return;
4296 4935
4297 EV_FREQUENT_CHECK; 4936 EV_FREQUENT_CHECK;
4298 4937
4299 ev_start (EV_A_ (W)w, ++cleanupcnt); 4938 ev_start (EV_A_ (W)w, ++cleanupcnt);
4300 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4939 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4301 cleanups [cleanupcnt - 1] = w; 4940 cleanups [cleanupcnt - 1] = w;
4302 4941
4303 /* cleanup watchers should never keep a refcount on the loop */ 4942 /* cleanup watchers should never keep a refcount on the loop */
4304 ev_unref (EV_A); 4943 ev_unref (EV_A);
4305 EV_FREQUENT_CHECK; 4944 EV_FREQUENT_CHECK;
4306} 4945}
4307 4946
4308void 4947void
4309ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4948ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4310{ 4949{
4311 clear_pending (EV_A_ (W)w); 4950 clear_pending (EV_A_ (W)w);
4312 if (expect_false (!ev_is_active (w))) 4951 if (expect_false (!ev_is_active (w)))
4313 return; 4952 return;
4314 4953
… …
4328} 4967}
4329#endif 4968#endif
4330 4969
4331#if EV_ASYNC_ENABLE 4970#if EV_ASYNC_ENABLE
4332void 4971void
4333ev_async_start (EV_P_ ev_async *w) EV_THROW 4972ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4334{ 4973{
4335 if (expect_false (ev_is_active (w))) 4974 if (expect_false (ev_is_active (w)))
4336 return; 4975 return;
4337 4976
4338 w->sent = 0; 4977 w->sent = 0;
… …
4340 evpipe_init (EV_A); 4979 evpipe_init (EV_A);
4341 4980
4342 EV_FREQUENT_CHECK; 4981 EV_FREQUENT_CHECK;
4343 4982
4344 ev_start (EV_A_ (W)w, ++asynccnt); 4983 ev_start (EV_A_ (W)w, ++asynccnt);
4345 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4984 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4346 asyncs [asynccnt - 1] = w; 4985 asyncs [asynccnt - 1] = w;
4347 4986
4348 EV_FREQUENT_CHECK; 4987 EV_FREQUENT_CHECK;
4349} 4988}
4350 4989
4351void 4990void
4352ev_async_stop (EV_P_ ev_async *w) EV_THROW 4991ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4353{ 4992{
4354 clear_pending (EV_A_ (W)w); 4993 clear_pending (EV_A_ (W)w);
4355 if (expect_false (!ev_is_active (w))) 4994 if (expect_false (!ev_is_active (w)))
4356 return; 4995 return;
4357 4996
… …
4368 5007
4369 EV_FREQUENT_CHECK; 5008 EV_FREQUENT_CHECK;
4370} 5009}
4371 5010
4372void 5011void
4373ev_async_send (EV_P_ ev_async *w) EV_THROW 5012ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4374{ 5013{
4375 w->sent = 1; 5014 w->sent = 1;
4376 evpipe_write (EV_A_ &async_pending); 5015 evpipe_write (EV_A_ &async_pending);
4377} 5016}
4378#endif 5017#endif
… …
4415 5054
4416 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5055 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4417} 5056}
4418 5057
4419void 5058void
4420ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5059ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4421{ 5060{
4422 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5061 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4423
4424 if (expect_false (!once))
4425 {
4426 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4427 return;
4428 }
4429 5062
4430 once->cb = cb; 5063 once->cb = cb;
4431 once->arg = arg; 5064 once->arg = arg;
4432 5065
4433 ev_init (&once->io, once_cb_io); 5066 ev_init (&once->io, once_cb_io);
… …
4446} 5079}
4447 5080
4448/*****************************************************************************/ 5081/*****************************************************************************/
4449 5082
4450#if EV_WALK_ENABLE 5083#if EV_WALK_ENABLE
4451void ecb_cold 5084ecb_cold
5085void
4452ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5086ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4453{ 5087{
4454 int i, j; 5088 int i, j;
4455 ev_watcher_list *wl, *wn; 5089 ev_watcher_list *wl, *wn;
4456 5090
4457 if (types & (EV_IO | EV_EMBED)) 5091 if (types & (EV_IO | EV_EMBED))

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