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Comparing libev/ev.c (file contents):
Revision 1.446 by root, Mon Jun 11 12:50:50 2012 UTC vs.
Revision 1.500 by root, Mon Jul 1 20:47:37 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_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
565 663
566/*****************************************************************************/ 664/*****************************************************************************/
567 665
568/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 666/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
569/* 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 */
… …
574 672
575#if ECB_NO_SMP 673#if ECB_NO_SMP
576 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
577#endif 675#endif
578 676
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
579#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
580 #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")
581 #if __i386 || __i386__ 689 #if __i386 || __i386__
582 #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")
583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 693 #elif ECB_GCC_AMD64
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
587 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 695 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 696 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 697 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
590 #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 */
591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 706 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
592 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 707 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
708 || defined __ARM_ARCH_6T2__
593 #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")
594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 710 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 711 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 712 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
597 #elif __sparc || __sparc__ 713 #elif __aarch64__
714 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
715 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
598 #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")
599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 717 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 718 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
601 #elif defined __s390__ || defined __s390x__ 719 #elif defined __s390__ || defined __s390x__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 720 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
603 #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. */
604 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 724 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
605 #elif defined __alpha__ 725 #elif defined __alpha__
606 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 726 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607 #elif defined __hppa__ 727 #elif defined __hppa__
608 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 728 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 729 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif defined __ia64__ 730 #elif defined __ia64__
611 #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")
612 #endif 738 #endif
613 #endif 739 #endif
614#endif 740#endif
615 741
616#ifndef ECB_MEMORY_FENCE 742#ifndef ECB_MEMORY_FENCE
617 #if ECB_GCC_VERSION(4,7) 743 #if ECB_GCC_VERSION(4,7)
618 /* see comment below (stdatomic.h) about the C11 memory model. */ 744 /* see comment below (stdatomic.h) about the C11 memory model. */
619 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 745 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620 #elif defined __clang && __has_feature (cxx_atomic) 746 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
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)
621 /* see comment below (stdatomic.h) about the C11 memory model. */ 751 /* see comment below (stdatomic.h) about the C11 memory model. */
622 #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
623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 757 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
624 #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()
625 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 765 #elif _MSC_VER >= 1400 /* VC++ 2005 */
626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 766 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
627 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 767 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
628 #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 */
629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 769 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
630 #elif defined _WIN32 770 #elif defined _WIN32
631 #include <WinNT.h> 771 #include <WinNT.h>
632 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 772 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
633 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 773 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #include <mbarrier.h> 774 #include <mbarrier.h>
635 #define ECB_MEMORY_FENCE __machine_rw_barrier () 775 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
636 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 776 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
637 #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 ()
638 #elif __xlC__ 779 #elif __xlC__
639 #define ECB_MEMORY_FENCE __sync () 780 #define ECB_MEMORY_FENCE __sync ()
640 #endif 781 #endif
641#endif 782#endif
642 783
643#ifndef ECB_MEMORY_FENCE 784#ifndef ECB_MEMORY_FENCE
644 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 785 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
645 /* 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, */
646 /* not just C11 atomics and atomic accesses */ 787 /* not just C11 atomics and atomic accesses */
647 #include <stdatomic.h> 788 #include <stdatomic.h>
648 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
649 /* any fence other than seq_cst, which isn't very efficient for us. */
650 /* Why that is, we don't know - either the C11 memory model is quite useless */
651 /* for most usages, or gcc and clang have a bug */
652 /* I *currently* lean towards the latter, and inefficiently implement */
653 /* all three of ecb's fences as a seq_cst fence */
654 #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)
655 #endif 792 #endif
656#endif 793#endif
657 794
658#ifndef ECB_MEMORY_FENCE 795#ifndef ECB_MEMORY_FENCE
659 #if !ECB_AVOID_PTHREADS 796 #if !ECB_AVOID_PTHREADS
… …
679 816
680#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 817#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 818 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
682#endif 819#endif
683 820
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
684/*****************************************************************************/ 825/*****************************************************************************/
685 826
686#if __cplusplus 827#if ECB_CPP
687 #define ecb_inline static inline 828 #define ecb_inline static inline
688#elif ECB_GCC_VERSION(2,5) 829#elif ECB_GCC_VERSION(2,5)
689 #define ecb_inline static __inline__ 830 #define ecb_inline static __inline__
690#elif ECB_C99 831#elif ECB_C99
691 #define ecb_inline static inline 832 #define ecb_inline static inline
… …
705 846
706#define ECB_CONCAT_(a, b) a ## b 847#define ECB_CONCAT_(a, b) a ## b
707#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 848#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
708#define ECB_STRINGIFY_(a) # a 849#define ECB_STRINGIFY_(a) # a
709#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))
710 852
711#define ecb_function_ ecb_inline 853#define ecb_function_ ecb_inline
712 854
713#if ECB_GCC_VERSION(3,1) 855#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
714 #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)
715 #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)
716 #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)
717 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 878 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
718#else 879#else
719 #define ecb_attribute(attrlist)
720 #define ecb_is_constant(expr) 0
721 #define ecb_expect(expr,value) (expr)
722 #define ecb_prefetch(addr,rw,locality) 880 #define ecb_prefetch(addr,rw,locality)
723#endif 881#endif
724 882
725/* no emulation for ecb_decltype */ 883/* no emulation for ecb_decltype */
726#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; };
727 #define ecb_decltype(x) __decltype(x) 887 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
728#elif ECB_GCC_VERSION(3,0) 888#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
729 #define ecb_decltype(x) __typeof(x) 889 #define ecb_decltype(x) __typeof__ (x)
730#endif 890#endif
731 891
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
732#define ecb_noinline ecb_attribute ((__noinline__)) 909 #define ecb_noinline ecb_attribute ((__noinline__))
910#endif
911
733#define ecb_unused ecb_attribute ((__unused__)) 912#define ecb_unused ecb_attribute ((__unused__))
734#define ecb_const ecb_attribute ((__const__)) 913#define ecb_const ecb_attribute ((__const__))
735#define ecb_pure ecb_attribute ((__pure__)) 914#define ecb_pure ecb_attribute ((__pure__))
736 915
737#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 */
738 #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)
739#else 924#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__)) 925 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif 926#endif
742 927
743#if ECB_GCC_VERSION(4,3) 928#if ECB_GCC_VERSION(4,3)
… …
758/* for compatibility to the rest of the world */ 943/* for compatibility to the rest of the world */
759#define ecb_likely(expr) ecb_expect_true (expr) 944#define ecb_likely(expr) ecb_expect_true (expr)
760#define ecb_unlikely(expr) ecb_expect_false (expr) 945#define ecb_unlikely(expr) ecb_expect_false (expr)
761 946
762/* count trailing zero bits and count # of one bits */ 947/* count trailing zero bits and count # of one bits */
763#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))
764 /* 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 */
765 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 953 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
766 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 954 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
767 #define ecb_ctz32(x) __builtin_ctz (x) 955 #define ecb_ctz32(x) __builtin_ctz (x)
768 #define ecb_ctz64(x) __builtin_ctzll (x) 956 #define ecb_ctz64(x) __builtin_ctzll (x)
769 #define ecb_popcount32(x) __builtin_popcount (x) 957 #define ecb_popcount32(x) __builtin_popcount (x)
770 /* no popcountll */ 958 /* no popcountll */
771#else 959#else
772 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 960 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
773 ecb_function_ int 961 ecb_function_ ecb_const int
774 ecb_ctz32 (uint32_t x) 962 ecb_ctz32 (uint32_t x)
775 { 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
776 int r = 0; 969 int r = 0;
777 970
778 x &= ~x + 1; /* this isolates the lowest bit */ 971 x &= ~x + 1; /* this isolates the lowest bit */
779 972
780#if ECB_branchless_on_i386 973#if ECB_branchless_on_i386
… …
790 if (x & 0xff00ff00) r += 8; 983 if (x & 0xff00ff00) r += 8;
791 if (x & 0xffff0000) r += 16; 984 if (x & 0xffff0000) r += 16;
792#endif 985#endif
793 986
794 return r; 987 return r;
988#endif
795 } 989 }
796 990
797 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 991 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
798 ecb_function_ int 992 ecb_function_ ecb_const int
799 ecb_ctz64 (uint64_t x) 993 ecb_ctz64 (uint64_t x)
800 { 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
801 int shift = x & 0xffffffffU ? 0 : 32; 1000 int shift = x & 0xffffffff ? 0 : 32;
802 return ecb_ctz32 (x >> shift) + shift; 1001 return ecb_ctz32 (x >> shift) + shift;
1002#endif
803 } 1003 }
804 1004
805 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1005 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
806 ecb_function_ int 1006 ecb_function_ ecb_const int
807 ecb_popcount32 (uint32_t x) 1007 ecb_popcount32 (uint32_t x)
808 { 1008 {
809 x -= (x >> 1) & 0x55555555; 1009 x -= (x >> 1) & 0x55555555;
810 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1010 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
811 x = ((x >> 4) + x) & 0x0f0f0f0f; 1011 x = ((x >> 4) + x) & 0x0f0f0f0f;
812 x *= 0x01010101; 1012 x *= 0x01010101;
813 1013
814 return x >> 24; 1014 return x >> 24;
815 } 1015 }
816 1016
817 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1017 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
818 ecb_function_ int ecb_ld32 (uint32_t x) 1018 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
819 { 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
820 int r = 0; 1025 int r = 0;
821 1026
822 if (x >> 16) { x >>= 16; r += 16; } 1027 if (x >> 16) { x >>= 16; r += 16; }
823 if (x >> 8) { x >>= 8; r += 8; } 1028 if (x >> 8) { x >>= 8; r += 8; }
824 if (x >> 4) { x >>= 4; r += 4; } 1029 if (x >> 4) { x >>= 4; r += 4; }
825 if (x >> 2) { x >>= 2; r += 2; } 1030 if (x >> 2) { x >>= 2; r += 2; }
826 if (x >> 1) { r += 1; } 1031 if (x >> 1) { r += 1; }
827 1032
828 return r; 1033 return r;
1034#endif
829 } 1035 }
830 1036
831 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1037 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
832 ecb_function_ int ecb_ld64 (uint64_t x) 1038 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
833 { 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
834 int r = 0; 1045 int r = 0;
835 1046
836 if (x >> 32) { x >>= 32; r += 32; } 1047 if (x >> 32) { x >>= 32; r += 32; }
837 1048
838 return r + ecb_ld32 (x); 1049 return r + ecb_ld32 (x);
1050#endif
839 } 1051 }
840#endif 1052#endif
841 1053
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1054ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
843ecb_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)); }
844ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1056ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
845ecb_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)); }
846 1058
847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1059ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1060ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
849{ 1061{
850 return ( (x * 0x0802U & 0x22110U) 1062 return ( (x * 0x0802U & 0x22110U)
851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1063 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852} 1064}
853 1065
854ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1066ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
855ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1067ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
856{ 1068{
857 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1069 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
858 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1070 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
859 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1071 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
860 x = ( x >> 8 ) | ( x << 8); 1072 x = ( x >> 8 ) | ( x << 8);
861 1073
862 return x; 1074 return x;
863} 1075}
864 1076
865ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1077ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
866ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1078ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
867{ 1079{
868 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1080 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
869 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1081 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
870 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1082 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
871 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1083 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
874 return x; 1086 return x;
875} 1087}
876 1088
877/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1089/* popcount64 is only available on 64 bit cpus as gcc builtin */
878/* so for this version we are lazy */ 1090/* so for this version we are lazy */
879ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1091ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
880ecb_function_ int 1092ecb_function_ ecb_const int
881ecb_popcount64 (uint64_t x) 1093ecb_popcount64 (uint64_t x)
882{ 1094{
883 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1095 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
884} 1096}
885 1097
886ecb_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);
887ecb_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);
888ecb_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);
889ecb_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);
890ecb_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);
891ecb_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);
892ecb_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);
893ecb_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);
894 1106
895ecb_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); }
896ecb_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); }
897ecb_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); }
898ecb_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); }
899ecb_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); }
900ecb_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); }
901ecb_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); }
902ecb_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); }
903 1115
904#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
905 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1120 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1121 #endif
906 #define ecb_bswap32(x) __builtin_bswap32 (x) 1122 #define ecb_bswap32(x) __builtin_bswap32 (x)
907 #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)))
908#else 1129#else
909 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1130 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
910 ecb_function_ uint16_t 1131 ecb_function_ ecb_const uint16_t
911 ecb_bswap16 (uint16_t x) 1132 ecb_bswap16 (uint16_t x)
912 { 1133 {
913 return ecb_rotl16 (x, 8); 1134 return ecb_rotl16 (x, 8);
914 } 1135 }
915 1136
916 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1137 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
917 ecb_function_ uint32_t 1138 ecb_function_ ecb_const uint32_t
918 ecb_bswap32 (uint32_t x) 1139 ecb_bswap32 (uint32_t x)
919 { 1140 {
920 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1141 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
921 } 1142 }
922 1143
923 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1144 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
924 ecb_function_ uint64_t 1145 ecb_function_ ecb_const uint64_t
925 ecb_bswap64 (uint64_t x) 1146 ecb_bswap64 (uint64_t x)
926 { 1147 {
927 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1148 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
928 } 1149 }
929#endif 1150#endif
930 1151
931#if ECB_GCC_VERSION(4,5) 1152#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
932 #define ecb_unreachable() __builtin_unreachable () 1153 #define ecb_unreachable() __builtin_unreachable ()
933#else 1154#else
934 /* 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 :/ */
935 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1156 ecb_inline ecb_noreturn void ecb_unreachable (void);
936 ecb_inline void ecb_unreachable (void) { } 1157 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
937#endif 1158#endif
938 1159
939/* try to tell the compiler that some condition is definitely true */ 1160/* try to tell the compiler that some condition is definitely true */
940#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1161#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
941 1162
942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1163ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
943ecb_inline unsigned char 1164ecb_inline ecb_const uint32_t
944ecb_byteorder_helper (void) 1165ecb_byteorder_helper (void)
945{ 1166{
946 const uint32_t u = 0x11223344; 1167 /* the union code still generates code under pressure in gcc, */
947 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
948} 1189}
949 1190
950ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_big_endian (void);
951ecb_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; }
952ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1193ecb_inline ecb_const ecb_bool ecb_little_endian (void);
953ecb_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; }
954 1195
955#if ECB_GCC_VERSION(3,0) || ECB_C99 1196#if ECB_GCC_VERSION(3,0) || ECB_C99
956 #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))
957#else 1198#else
958 #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)))
959#endif 1200#endif
960 1201
961#if __cplusplus 1202#if ECB_CPP
962 template<typename T> 1203 template<typename T>
963 static inline T ecb_div_rd (T val, T div) 1204 static inline T ecb_div_rd (T val, T div)
964 { 1205 {
965 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1206 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
966 } 1207 }
… …
983 } 1224 }
984#else 1225#else
985 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1226 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
986#endif 1227#endif
987 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
988#endif 1534#endif
989 1535
990/* ECB.H END */ 1536/* ECB.H END */
991 1537
992#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1538#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
993/* if your architecture doesn't need memory fences, e.g. because it is 1539/* if your architecture doesn't need memory fences, e.g. because it is
994 * single-cpu/core, or if you use libev in a project that doesn't use libev 1540 * single-cpu/core, or if you use libev in a project that doesn't use libev
995 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1541 * from multiple threads, then you can define ECB_NO_THREADS when compiling
996 * libev, in which cases the memory fences become nops. 1542 * libev, in which cases the memory fences become nops.
997 * alternatively, you can remove this #error and link against libpthread, 1543 * alternatively, you can remove this #error and link against libpthread,
998 * which will then provide the memory fences. 1544 * which will then provide the memory fences.
999 */ 1545 */
1000# error "memory fences not defined for your architecture, please report" 1546# error "memory fences not defined for your architecture, please report"
… …
1004# define ECB_MEMORY_FENCE do { } while (0) 1550# define ECB_MEMORY_FENCE do { } while (0)
1005# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1551# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1006# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1552# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1007#endif 1553#endif
1008 1554
1009#define expect_false(cond) ecb_expect_false (cond)
1010#define expect_true(cond) ecb_expect_true (cond)
1011#define noinline ecb_noinline
1012
1013#define inline_size ecb_inline 1555#define inline_size ecb_inline
1014 1556
1015#if EV_FEATURE_CODE 1557#if EV_FEATURE_CODE
1016# define inline_speed ecb_inline 1558# define inline_speed ecb_inline
1017#else 1559#else
1018# define inline_speed static noinline 1560# define inline_speed ecb_noinline static
1019#endif 1561#endif
1020 1562
1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1563#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1022 1564
1023#if EV_MINPRI == EV_MAXPRI 1565#if EV_MINPRI == EV_MAXPRI
1024# define ABSPRI(w) (((W)w), 0) 1566# define ABSPRI(w) (((W)w), 0)
1025#else 1567#else
1026# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1568# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1027#endif 1569#endif
1028 1570
1029#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1571#define EMPTY /* required for microsofts broken pseudo-c compiler */
1030#define EMPTY2(a,b) /* used to suppress some warnings */
1031 1572
1032typedef ev_watcher *W; 1573typedef ev_watcher *W;
1033typedef ev_watcher_list *WL; 1574typedef ev_watcher_list *WL;
1034typedef ev_watcher_time *WT; 1575typedef ev_watcher_time *WT;
1035 1576
… …
1060# include "ev_win32.c" 1601# include "ev_win32.c"
1061#endif 1602#endif
1062 1603
1063/*****************************************************************************/ 1604/*****************************************************************************/
1064 1605
1606#if EV_USE_LINUXAIO
1607# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1608#endif
1609
1065/* define a suitable floor function (only used by periodics atm) */ 1610/* define a suitable floor function (only used by periodics atm) */
1066 1611
1067#if EV_USE_FLOOR 1612#if EV_USE_FLOOR
1068# include <math.h> 1613# include <math.h>
1069# define ev_floor(v) floor (v) 1614# define ev_floor(v) floor (v)
1070#else 1615#else
1071 1616
1072#include <float.h> 1617#include <float.h>
1073 1618
1074/* a floor() replacement function, should be independent of ev_tstamp type */ 1619/* a floor() replacement function, should be independent of ev_tstamp type */
1620ecb_noinline
1075static ev_tstamp noinline 1621static ev_tstamp
1076ev_floor (ev_tstamp v) 1622ev_floor (ev_tstamp v)
1077{ 1623{
1078 /* the choice of shift factor is not terribly important */ 1624 /* the choice of shift factor is not terribly important */
1079#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1625#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1080 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1626 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1081#else 1627#else
1082 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1083#endif 1629#endif
1084 1630
1085 /* argument too large for an unsigned long? */ 1631 /* argument too large for an unsigned long? */
1086 if (expect_false (v >= shift)) 1632 if (ecb_expect_false (v >= shift))
1087 { 1633 {
1088 ev_tstamp f; 1634 ev_tstamp f;
1089 1635
1090 if (v == v - 1.) 1636 if (v == v - 1.)
1091 return v; /* very large number */ 1637 return v; /* very large number */
… …
1093 f = shift * ev_floor (v * (1. / shift)); 1639 f = shift * ev_floor (v * (1. / shift));
1094 return f + ev_floor (v - f); 1640 return f + ev_floor (v - f);
1095 } 1641 }
1096 1642
1097 /* special treatment for negative args? */ 1643 /* special treatment for negative args? */
1098 if (expect_false (v < 0.)) 1644 if (ecb_expect_false (v < 0.))
1099 { 1645 {
1100 ev_tstamp f = -ev_floor (-v); 1646 ev_tstamp f = -ev_floor (-v);
1101 1647
1102 return f - (f == v ? 0 : 1); 1648 return f - (f == v ? 0 : 1);
1103 } 1649 }
… …
1112 1658
1113#ifdef __linux 1659#ifdef __linux
1114# include <sys/utsname.h> 1660# include <sys/utsname.h>
1115#endif 1661#endif
1116 1662
1117static unsigned int noinline ecb_cold 1663ecb_noinline ecb_cold
1664static unsigned int
1118ev_linux_version (void) 1665ev_linux_version (void)
1119{ 1666{
1120#ifdef __linux 1667#ifdef __linux
1121 unsigned int v = 0; 1668 unsigned int v = 0;
1122 struct utsname buf; 1669 struct utsname buf;
… …
1151} 1698}
1152 1699
1153/*****************************************************************************/ 1700/*****************************************************************************/
1154 1701
1155#if EV_AVOID_STDIO 1702#if EV_AVOID_STDIO
1156static void noinline ecb_cold 1703ecb_noinline ecb_cold
1704static void
1157ev_printerr (const char *msg) 1705ev_printerr (const char *msg)
1158{ 1706{
1159 write (STDERR_FILENO, msg, strlen (msg)); 1707 write (STDERR_FILENO, msg, strlen (msg));
1160} 1708}
1161#endif 1709#endif
1162 1710
1163static void (*syserr_cb)(const char *msg) EV_THROW; 1711static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1164 1712
1165void ecb_cold 1713ecb_cold
1714void
1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1715ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1167{ 1716{
1168 syserr_cb = cb; 1717 syserr_cb = cb;
1169} 1718}
1170 1719
1171static void noinline ecb_cold 1720ecb_noinline ecb_cold
1721static void
1172ev_syserr (const char *msg) 1722ev_syserr (const char *msg)
1173{ 1723{
1174 if (!msg) 1724 if (!msg)
1175 msg = "(libev) system error"; 1725 msg = "(libev) system error";
1176 1726
… …
1189 abort (); 1739 abort ();
1190 } 1740 }
1191} 1741}
1192 1742
1193static void * 1743static void *
1194ev_realloc_emul (void *ptr, long size) EV_THROW 1744ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1195{ 1745{
1196#if __GLIBC__
1197 return realloc (ptr, size);
1198#else
1199 /* some systems, notably openbsd and darwin, fail to properly 1746 /* some systems, notably openbsd and darwin, fail to properly
1200 * implement realloc (x, 0) (as required by both ansi c-89 and 1747 * implement realloc (x, 0) (as required by both ansi c-89 and
1201 * the single unix specification, so work around them here. 1748 * the single unix specification, so work around them here.
1749 * recently, also (at least) fedora and debian started breaking it,
1750 * despite documenting it otherwise.
1202 */ 1751 */
1203 1752
1204 if (size) 1753 if (size)
1205 return realloc (ptr, size); 1754 return realloc (ptr, size);
1206 1755
1207 free (ptr); 1756 free (ptr);
1208 return 0; 1757 return 0;
1209#endif
1210} 1758}
1211 1759
1212static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1760static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1213 1761
1214void ecb_cold 1762ecb_cold
1763void
1215ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1764ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1216{ 1765{
1217 alloc = cb; 1766 alloc = cb;
1218} 1767}
1219 1768
1220inline_speed void * 1769inline_speed void *
… …
1247typedef struct 1796typedef struct
1248{ 1797{
1249 WL head; 1798 WL head;
1250 unsigned char events; /* the events watched for */ 1799 unsigned char events; /* the events watched for */
1251 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1800 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1252 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1801 unsigned char emask; /* some backends store the actual kernel mask in here */
1253 unsigned char unused; 1802 unsigned char unused;
1254#if EV_USE_EPOLL 1803#if EV_USE_EPOLL
1255 unsigned int egen; /* generation counter to counter epoll bugs */ 1804 unsigned int egen; /* generation counter to counter epoll bugs */
1256#endif 1805#endif
1257#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1806#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1322 static int ev_default_loop_ptr; 1871 static int ev_default_loop_ptr;
1323 1872
1324#endif 1873#endif
1325 1874
1326#if EV_FEATURE_API 1875#if EV_FEATURE_API
1327# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1876# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1328# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1877# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1329# define EV_INVOKE_PENDING invoke_cb (EV_A) 1878# define EV_INVOKE_PENDING invoke_cb (EV_A)
1330#else 1879#else
1331# define EV_RELEASE_CB (void)0 1880# define EV_RELEASE_CB (void)0
1332# define EV_ACQUIRE_CB (void)0 1881# define EV_ACQUIRE_CB (void)0
1333# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1882# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1337 1886
1338/*****************************************************************************/ 1887/*****************************************************************************/
1339 1888
1340#ifndef EV_HAVE_EV_TIME 1889#ifndef EV_HAVE_EV_TIME
1341ev_tstamp 1890ev_tstamp
1342ev_time (void) EV_THROW 1891ev_time (void) EV_NOEXCEPT
1343{ 1892{
1344#if EV_USE_REALTIME 1893#if EV_USE_REALTIME
1345 if (expect_true (have_realtime)) 1894 if (ecb_expect_true (have_realtime))
1346 { 1895 {
1347 struct timespec ts; 1896 struct timespec ts;
1348 clock_gettime (CLOCK_REALTIME, &ts); 1897 clock_gettime (CLOCK_REALTIME, &ts);
1349 return ts.tv_sec + ts.tv_nsec * 1e-9; 1898 return ts.tv_sec + ts.tv_nsec * 1e-9;
1350 } 1899 }
… …
1358 1907
1359inline_size ev_tstamp 1908inline_size ev_tstamp
1360get_clock (void) 1909get_clock (void)
1361{ 1910{
1362#if EV_USE_MONOTONIC 1911#if EV_USE_MONOTONIC
1363 if (expect_true (have_monotonic)) 1912 if (ecb_expect_true (have_monotonic))
1364 { 1913 {
1365 struct timespec ts; 1914 struct timespec ts;
1366 clock_gettime (CLOCK_MONOTONIC, &ts); 1915 clock_gettime (CLOCK_MONOTONIC, &ts);
1367 return ts.tv_sec + ts.tv_nsec * 1e-9; 1916 return ts.tv_sec + ts.tv_nsec * 1e-9;
1368 } 1917 }
… …
1371 return ev_time (); 1920 return ev_time ();
1372} 1921}
1373 1922
1374#if EV_MULTIPLICITY 1923#if EV_MULTIPLICITY
1375ev_tstamp 1924ev_tstamp
1376ev_now (EV_P) EV_THROW 1925ev_now (EV_P) EV_NOEXCEPT
1377{ 1926{
1378 return ev_rt_now; 1927 return ev_rt_now;
1379} 1928}
1380#endif 1929#endif
1381 1930
1382void 1931void
1383ev_sleep (ev_tstamp delay) EV_THROW 1932ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1384{ 1933{
1385 if (delay > 0.) 1934 if (delay > 0.)
1386 { 1935 {
1387#if EV_USE_NANOSLEEP 1936#if EV_USE_NANOSLEEP
1388 struct timespec ts; 1937 struct timespec ts;
1389 1938
1390 EV_TS_SET (ts, delay); 1939 EV_TS_SET (ts, delay);
1391 nanosleep (&ts, 0); 1940 nanosleep (&ts, 0);
1392#elif defined _WIN32 1941#elif defined _WIN32
1942 /* maybe this should round up, as ms is very low resolution */
1943 /* compared to select (µs) or nanosleep (ns) */
1393 Sleep ((unsigned long)(delay * 1e3)); 1944 Sleep ((unsigned long)(delay * 1e3));
1394#else 1945#else
1395 struct timeval tv; 1946 struct timeval tv;
1396 1947
1397 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1948 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1428 } 1979 }
1429 1980
1430 return ncur; 1981 return ncur;
1431} 1982}
1432 1983
1433static void * noinline ecb_cold 1984ecb_noinline ecb_cold
1985static void *
1434array_realloc (int elem, void *base, int *cur, int cnt) 1986array_realloc (int elem, void *base, int *cur, int cnt)
1435{ 1987{
1436 *cur = array_nextsize (elem, *cur, cnt); 1988 *cur = array_nextsize (elem, *cur, cnt);
1437 return ev_realloc (base, elem * *cur); 1989 return ev_realloc (base, elem * *cur);
1438} 1990}
1439 1991
1992#define array_needsize_noinit(base,offset,count)
1993
1440#define array_init_zero(base,count) \ 1994#define array_needsize_zerofill(base,offset,count) \
1441 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1995 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1442 1996
1443#define array_needsize(type,base,cur,cnt,init) \ 1997#define array_needsize(type,base,cur,cnt,init) \
1444 if (expect_false ((cnt) > (cur))) \ 1998 if (ecb_expect_false ((cnt) > (cur))) \
1445 { \ 1999 { \
1446 int ecb_unused ocur_ = (cur); \ 2000 ecb_unused int ocur_ = (cur); \
1447 (base) = (type *)array_realloc \ 2001 (base) = (type *)array_realloc \
1448 (sizeof (type), (base), &(cur), (cnt)); \ 2002 (sizeof (type), (base), &(cur), (cnt)); \
1449 init ((base) + (ocur_), (cur) - ocur_); \ 2003 init ((base), ocur_, ((cur) - ocur_)); \
1450 } 2004 }
1451 2005
1452#if 0 2006#if 0
1453#define array_slim(type,stem) \ 2007#define array_slim(type,stem) \
1454 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2008 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1463 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2017 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1464 2018
1465/*****************************************************************************/ 2019/*****************************************************************************/
1466 2020
1467/* dummy callback for pending events */ 2021/* dummy callback for pending events */
1468static void noinline 2022ecb_noinline
2023static void
1469pendingcb (EV_P_ ev_prepare *w, int revents) 2024pendingcb (EV_P_ ev_prepare *w, int revents)
1470{ 2025{
1471} 2026}
1472 2027
1473void noinline 2028ecb_noinline
2029void
1474ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2030ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1475{ 2031{
1476 W w_ = (W)w; 2032 W w_ = (W)w;
1477 int pri = ABSPRI (w_); 2033 int pri = ABSPRI (w_);
1478 2034
1479 if (expect_false (w_->pending)) 2035 if (ecb_expect_false (w_->pending))
1480 pendings [pri][w_->pending - 1].events |= revents; 2036 pendings [pri][w_->pending - 1].events |= revents;
1481 else 2037 else
1482 { 2038 {
1483 w_->pending = ++pendingcnt [pri]; 2039 w_->pending = ++pendingcnt [pri];
1484 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2040 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1485 pendings [pri][w_->pending - 1].w = w_; 2041 pendings [pri][w_->pending - 1].w = w_;
1486 pendings [pri][w_->pending - 1].events = revents; 2042 pendings [pri][w_->pending - 1].events = revents;
1487 } 2043 }
1488 2044
1489 pendingpri = NUMPRI - 1; 2045 pendingpri = NUMPRI - 1;
1490} 2046}
1491 2047
1492inline_speed void 2048inline_speed void
1493feed_reverse (EV_P_ W w) 2049feed_reverse (EV_P_ W w)
1494{ 2050{
1495 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2051 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1496 rfeeds [rfeedcnt++] = w; 2052 rfeeds [rfeedcnt++] = w;
1497} 2053}
1498 2054
1499inline_size void 2055inline_size void
1500feed_reverse_done (EV_P_ int revents) 2056feed_reverse_done (EV_P_ int revents)
… …
1535inline_speed void 2091inline_speed void
1536fd_event (EV_P_ int fd, int revents) 2092fd_event (EV_P_ int fd, int revents)
1537{ 2093{
1538 ANFD *anfd = anfds + fd; 2094 ANFD *anfd = anfds + fd;
1539 2095
1540 if (expect_true (!anfd->reify)) 2096 if (ecb_expect_true (!anfd->reify))
1541 fd_event_nocheck (EV_A_ fd, revents); 2097 fd_event_nocheck (EV_A_ fd, revents);
1542} 2098}
1543 2099
1544void 2100void
1545ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2101ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1546{ 2102{
1547 if (fd >= 0 && fd < anfdmax) 2103 if (fd >= 0 && fd < anfdmax)
1548 fd_event_nocheck (EV_A_ fd, revents); 2104 fd_event_nocheck (EV_A_ fd, revents);
1549} 2105}
1550 2106
… …
1587 ev_io *w; 2143 ev_io *w;
1588 2144
1589 unsigned char o_events = anfd->events; 2145 unsigned char o_events = anfd->events;
1590 unsigned char o_reify = anfd->reify; 2146 unsigned char o_reify = anfd->reify;
1591 2147
1592 anfd->reify = 0; 2148 anfd->reify = 0;
1593 2149
1594 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2150 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1595 { 2151 {
1596 anfd->events = 0; 2152 anfd->events = 0;
1597 2153
1598 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2154 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1599 anfd->events |= (unsigned char)w->events; 2155 anfd->events |= (unsigned char)w->events;
… …
1608 2164
1609 fdchangecnt = 0; 2165 fdchangecnt = 0;
1610} 2166}
1611 2167
1612/* something about the given fd changed */ 2168/* something about the given fd changed */
1613inline_size void 2169inline_size
2170void
1614fd_change (EV_P_ int fd, int flags) 2171fd_change (EV_P_ int fd, int flags)
1615{ 2172{
1616 unsigned char reify = anfds [fd].reify; 2173 unsigned char reify = anfds [fd].reify;
1617 anfds [fd].reify |= flags; 2174 anfds [fd].reify |= flags;
1618 2175
1619 if (expect_true (!reify)) 2176 if (ecb_expect_true (!reify))
1620 { 2177 {
1621 ++fdchangecnt; 2178 ++fdchangecnt;
1622 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2179 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1623 fdchanges [fdchangecnt - 1] = fd; 2180 fdchanges [fdchangecnt - 1] = fd;
1624 } 2181 }
1625} 2182}
1626 2183
1627/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2184/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1628inline_speed void ecb_cold 2185inline_speed ecb_cold void
1629fd_kill (EV_P_ int fd) 2186fd_kill (EV_P_ int fd)
1630{ 2187{
1631 ev_io *w; 2188 ev_io *w;
1632 2189
1633 while ((w = (ev_io *)anfds [fd].head)) 2190 while ((w = (ev_io *)anfds [fd].head))
… …
1636 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2193 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1637 } 2194 }
1638} 2195}
1639 2196
1640/* check whether the given fd is actually valid, for error recovery */ 2197/* check whether the given fd is actually valid, for error recovery */
1641inline_size int ecb_cold 2198inline_size ecb_cold int
1642fd_valid (int fd) 2199fd_valid (int fd)
1643{ 2200{
1644#ifdef _WIN32 2201#ifdef _WIN32
1645 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2202 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1646#else 2203#else
1647 return fcntl (fd, F_GETFD) != -1; 2204 return fcntl (fd, F_GETFD) != -1;
1648#endif 2205#endif
1649} 2206}
1650 2207
1651/* called on EBADF to verify fds */ 2208/* called on EBADF to verify fds */
1652static void noinline ecb_cold 2209ecb_noinline ecb_cold
2210static void
1653fd_ebadf (EV_P) 2211fd_ebadf (EV_P)
1654{ 2212{
1655 int fd; 2213 int fd;
1656 2214
1657 for (fd = 0; fd < anfdmax; ++fd) 2215 for (fd = 0; fd < anfdmax; ++fd)
… …
1659 if (!fd_valid (fd) && errno == EBADF) 2217 if (!fd_valid (fd) && errno == EBADF)
1660 fd_kill (EV_A_ fd); 2218 fd_kill (EV_A_ fd);
1661} 2219}
1662 2220
1663/* called on ENOMEM in select/poll to kill some fds and retry */ 2221/* called on ENOMEM in select/poll to kill some fds and retry */
1664static void noinline ecb_cold 2222ecb_noinline ecb_cold
2223static void
1665fd_enomem (EV_P) 2224fd_enomem (EV_P)
1666{ 2225{
1667 int fd; 2226 int fd;
1668 2227
1669 for (fd = anfdmax; fd--; ) 2228 for (fd = anfdmax; fd--; )
… …
1673 break; 2232 break;
1674 } 2233 }
1675} 2234}
1676 2235
1677/* usually called after fork if backend needs to re-arm all fds from scratch */ 2236/* usually called after fork if backend needs to re-arm all fds from scratch */
1678static void noinline 2237ecb_noinline
2238static void
1679fd_rearm_all (EV_P) 2239fd_rearm_all (EV_P)
1680{ 2240{
1681 int fd; 2241 int fd;
1682 2242
1683 for (fd = 0; fd < anfdmax; ++fd) 2243 for (fd = 0; fd < anfdmax; ++fd)
… …
1736 ev_tstamp minat; 2296 ev_tstamp minat;
1737 ANHE *minpos; 2297 ANHE *minpos;
1738 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2298 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1739 2299
1740 /* find minimum child */ 2300 /* find minimum child */
1741 if (expect_true (pos + DHEAP - 1 < E)) 2301 if (ecb_expect_true (pos + DHEAP - 1 < E))
1742 { 2302 {
1743 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2303 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1744 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2304 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1745 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2305 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1746 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2306 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
… …
1864 2424
1865/*****************************************************************************/ 2425/*****************************************************************************/
1866 2426
1867#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2427#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1868 2428
1869static void noinline ecb_cold 2429ecb_noinline ecb_cold
2430static void
1870evpipe_init (EV_P) 2431evpipe_init (EV_P)
1871{ 2432{
1872 if (!ev_is_active (&pipe_w)) 2433 if (!ev_is_active (&pipe_w))
1873 { 2434 {
2435 int fds [2];
2436
1874# if EV_USE_EVENTFD 2437# if EV_USE_EVENTFD
2438 fds [0] = -1;
1875 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2439 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1876 if (evfd < 0 && errno == EINVAL) 2440 if (fds [1] < 0 && errno == EINVAL)
1877 evfd = eventfd (0, 0); 2441 fds [1] = eventfd (0, 0);
1878 2442
1879 if (evfd >= 0) 2443 if (fds [1] < 0)
1880 {
1881 evpipe [0] = -1;
1882 fd_intern (evfd); /* doing it twice doesn't hurt */
1883 ev_io_set (&pipe_w, evfd, EV_READ);
1884 }
1885 else
1886# endif 2444# endif
1887 { 2445 {
1888 while (pipe (evpipe)) 2446 while (pipe (fds))
1889 ev_syserr ("(libev) error creating signal/async pipe"); 2447 ev_syserr ("(libev) error creating signal/async pipe");
1890 2448
1891 fd_intern (evpipe [0]); 2449 fd_intern (fds [0]);
1892 fd_intern (evpipe [1]);
1893 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1894 } 2450 }
1895 2451
2452 evpipe [0] = fds [0];
2453
2454 if (evpipe [1] < 0)
2455 evpipe [1] = fds [1]; /* first call, set write fd */
2456 else
2457 {
2458 /* on subsequent calls, do not change evpipe [1] */
2459 /* so that evpipe_write can always rely on its value. */
2460 /* this branch does not do anything sensible on windows, */
2461 /* so must not be executed on windows */
2462
2463 dup2 (fds [1], evpipe [1]);
2464 close (fds [1]);
2465 }
2466
2467 fd_intern (evpipe [1]);
2468
2469 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1896 ev_io_start (EV_A_ &pipe_w); 2470 ev_io_start (EV_A_ &pipe_w);
1897 ev_unref (EV_A); /* watcher should not keep loop alive */ 2471 ev_unref (EV_A); /* watcher should not keep loop alive */
1898 } 2472 }
1899} 2473}
1900 2474
1901inline_speed void 2475inline_speed void
1902evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2476evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1903{ 2477{
1904 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2478 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1905 2479
1906 if (expect_true (*flag)) 2480 if (ecb_expect_true (*flag))
1907 return; 2481 return;
1908 2482
1909 *flag = 1; 2483 *flag = 1;
1910 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2484 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1911 2485
… …
1921 ECB_MEMORY_FENCE_RELEASE; 2495 ECB_MEMORY_FENCE_RELEASE;
1922 2496
1923 old_errno = errno; /* save errno because write will clobber it */ 2497 old_errno = errno; /* save errno because write will clobber it */
1924 2498
1925#if EV_USE_EVENTFD 2499#if EV_USE_EVENTFD
1926 if (evfd >= 0) 2500 if (evpipe [0] < 0)
1927 { 2501 {
1928 uint64_t counter = 1; 2502 uint64_t counter = 1;
1929 write (evfd, &counter, sizeof (uint64_t)); 2503 write (evpipe [1], &counter, sizeof (uint64_t));
1930 } 2504 }
1931 else 2505 else
1932#endif 2506#endif
1933 { 2507 {
1934#ifdef _WIN32 2508#ifdef _WIN32
1935 WSABUF buf; 2509 WSABUF buf;
1936 DWORD sent; 2510 DWORD sent;
1937 buf.buf = &buf; 2511 buf.buf = (char *)&buf;
1938 buf.len = 1; 2512 buf.len = 1;
1939 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2513 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1940#else 2514#else
1941 write (evpipe [1], &(evpipe [1]), 1); 2515 write (evpipe [1], &(evpipe [1]), 1);
1942#endif 2516#endif
… …
1954 int i; 2528 int i;
1955 2529
1956 if (revents & EV_READ) 2530 if (revents & EV_READ)
1957 { 2531 {
1958#if EV_USE_EVENTFD 2532#if EV_USE_EVENTFD
1959 if (evfd >= 0) 2533 if (evpipe [0] < 0)
1960 { 2534 {
1961 uint64_t counter; 2535 uint64_t counter;
1962 read (evfd, &counter, sizeof (uint64_t)); 2536 read (evpipe [1], &counter, sizeof (uint64_t));
1963 } 2537 }
1964 else 2538 else
1965#endif 2539#endif
1966 { 2540 {
1967 char dummy[4]; 2541 char dummy[4];
… …
1988 sig_pending = 0; 2562 sig_pending = 0;
1989 2563
1990 ECB_MEMORY_FENCE; 2564 ECB_MEMORY_FENCE;
1991 2565
1992 for (i = EV_NSIG - 1; i--; ) 2566 for (i = EV_NSIG - 1; i--; )
1993 if (expect_false (signals [i].pending)) 2567 if (ecb_expect_false (signals [i].pending))
1994 ev_feed_signal_event (EV_A_ i + 1); 2568 ev_feed_signal_event (EV_A_ i + 1);
1995 } 2569 }
1996#endif 2570#endif
1997 2571
1998#if EV_ASYNC_ENABLE 2572#if EV_ASYNC_ENABLE
… …
2014} 2588}
2015 2589
2016/*****************************************************************************/ 2590/*****************************************************************************/
2017 2591
2018void 2592void
2019ev_feed_signal (int signum) EV_THROW 2593ev_feed_signal (int signum) EV_NOEXCEPT
2020{ 2594{
2021#if EV_MULTIPLICITY 2595#if EV_MULTIPLICITY
2596 EV_P;
2597 ECB_MEMORY_FENCE_ACQUIRE;
2022 EV_P = signals [signum - 1].loop; 2598 EV_A = signals [signum - 1].loop;
2023 2599
2024 if (!EV_A) 2600 if (!EV_A)
2025 return; 2601 return;
2026#endif 2602#endif
2027 2603
2028 if (!ev_active (&pipe_w))
2029 return;
2030
2031 signals [signum - 1].pending = 1; 2604 signals [signum - 1].pending = 1;
2032 evpipe_write (EV_A_ &sig_pending); 2605 evpipe_write (EV_A_ &sig_pending);
2033} 2606}
2034 2607
2035static void 2608static void
… …
2040#endif 2613#endif
2041 2614
2042 ev_feed_signal (signum); 2615 ev_feed_signal (signum);
2043} 2616}
2044 2617
2045void noinline 2618ecb_noinline
2619void
2046ev_feed_signal_event (EV_P_ int signum) EV_THROW 2620ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2047{ 2621{
2048 WL w; 2622 WL w;
2049 2623
2050 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2624 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2051 return; 2625 return;
2052 2626
2053 --signum; 2627 --signum;
2054 2628
2055#if EV_MULTIPLICITY 2629#if EV_MULTIPLICITY
2056 /* it is permissible to try to feed a signal to the wrong loop */ 2630 /* it is permissible to try to feed a signal to the wrong loop */
2057 /* or, likely more useful, feeding a signal nobody is waiting for */ 2631 /* or, likely more useful, feeding a signal nobody is waiting for */
2058 2632
2059 if (expect_false (signals [signum].loop != EV_A)) 2633 if (ecb_expect_false (signals [signum].loop != EV_A))
2060 return; 2634 return;
2061#endif 2635#endif
2062 2636
2063 signals [signum].pending = 0; 2637 signals [signum].pending = 0;
2064 ECB_MEMORY_FENCE_RELEASE; 2638 ECB_MEMORY_FENCE_RELEASE;
… …
2160# include "ev_kqueue.c" 2734# include "ev_kqueue.c"
2161#endif 2735#endif
2162#if EV_USE_EPOLL 2736#if EV_USE_EPOLL
2163# include "ev_epoll.c" 2737# include "ev_epoll.c"
2164#endif 2738#endif
2739#if EV_USE_LINUXAIO
2740# include "ev_linuxaio.c"
2741#endif
2165#if EV_USE_POLL 2742#if EV_USE_POLL
2166# include "ev_poll.c" 2743# include "ev_poll.c"
2167#endif 2744#endif
2168#if EV_USE_SELECT 2745#if EV_USE_SELECT
2169# include "ev_select.c" 2746# include "ev_select.c"
2170#endif 2747#endif
2171 2748
2172int ecb_cold 2749ecb_cold int
2173ev_version_major (void) EV_THROW 2750ev_version_major (void) EV_NOEXCEPT
2174{ 2751{
2175 return EV_VERSION_MAJOR; 2752 return EV_VERSION_MAJOR;
2176} 2753}
2177 2754
2178int ecb_cold 2755ecb_cold int
2179ev_version_minor (void) EV_THROW 2756ev_version_minor (void) EV_NOEXCEPT
2180{ 2757{
2181 return EV_VERSION_MINOR; 2758 return EV_VERSION_MINOR;
2182} 2759}
2183 2760
2184/* return true if we are running with elevated privileges and should ignore env variables */ 2761/* return true if we are running with elevated privileges and should ignore env variables */
2185int inline_size ecb_cold 2762inline_size ecb_cold int
2186enable_secure (void) 2763enable_secure (void)
2187{ 2764{
2188#ifdef _WIN32 2765#ifdef _WIN32
2189 return 0; 2766 return 0;
2190#else 2767#else
2191 return getuid () != geteuid () 2768 return getuid () != geteuid ()
2192 || getgid () != getegid (); 2769 || getgid () != getegid ();
2193#endif 2770#endif
2194} 2771}
2195 2772
2196unsigned int ecb_cold 2773ecb_cold
2774unsigned int
2197ev_supported_backends (void) EV_THROW 2775ev_supported_backends (void) EV_NOEXCEPT
2198{ 2776{
2199 unsigned int flags = 0; 2777 unsigned int flags = 0;
2200 2778
2201 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2779 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2202 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2780 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2203 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2781 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2782 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2204 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2783 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2205 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2784 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2206 2785
2207 return flags; 2786 return flags;
2208} 2787}
2209 2788
2210unsigned int ecb_cold 2789ecb_cold
2790unsigned int
2211ev_recommended_backends (void) EV_THROW 2791ev_recommended_backends (void) EV_NOEXCEPT
2212{ 2792{
2213 unsigned int flags = ev_supported_backends (); 2793 unsigned int flags = ev_supported_backends ();
2214 2794
2215#ifndef __NetBSD__ 2795#ifndef __NetBSD__
2216 /* kqueue is borked on everything but netbsd apparently */ 2796 /* kqueue is borked on everything but netbsd apparently */
… …
2224#endif 2804#endif
2225#ifdef __FreeBSD__ 2805#ifdef __FreeBSD__
2226 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2806 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2227#endif 2807#endif
2228 2808
2809 /* TODO: linuxaio is very experimental */
2810#if !EV_RECOMMEND_LINUXAIO
2811 flags &= ~EVBACKEND_LINUXAIO;
2812#endif
2813
2229 return flags; 2814 return flags;
2230} 2815}
2231 2816
2232unsigned int ecb_cold 2817ecb_cold
2818unsigned int
2233ev_embeddable_backends (void) EV_THROW 2819ev_embeddable_backends (void) EV_NOEXCEPT
2234{ 2820{
2235 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2821 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2236 2822
2237 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2823 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2238 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2824 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2240 2826
2241 return flags; 2827 return flags;
2242} 2828}
2243 2829
2244unsigned int 2830unsigned int
2245ev_backend (EV_P) EV_THROW 2831ev_backend (EV_P) EV_NOEXCEPT
2246{ 2832{
2247 return backend; 2833 return backend;
2248} 2834}
2249 2835
2250#if EV_FEATURE_API 2836#if EV_FEATURE_API
2251unsigned int 2837unsigned int
2252ev_iteration (EV_P) EV_THROW 2838ev_iteration (EV_P) EV_NOEXCEPT
2253{ 2839{
2254 return loop_count; 2840 return loop_count;
2255} 2841}
2256 2842
2257unsigned int 2843unsigned int
2258ev_depth (EV_P) EV_THROW 2844ev_depth (EV_P) EV_NOEXCEPT
2259{ 2845{
2260 return loop_depth; 2846 return loop_depth;
2261} 2847}
2262 2848
2263void 2849void
2264ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2850ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2265{ 2851{
2266 io_blocktime = interval; 2852 io_blocktime = interval;
2267} 2853}
2268 2854
2269void 2855void
2270ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2856ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2271{ 2857{
2272 timeout_blocktime = interval; 2858 timeout_blocktime = interval;
2273} 2859}
2274 2860
2275void 2861void
2276ev_set_userdata (EV_P_ void *data) EV_THROW 2862ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2277{ 2863{
2278 userdata = data; 2864 userdata = data;
2279} 2865}
2280 2866
2281void * 2867void *
2282ev_userdata (EV_P) EV_THROW 2868ev_userdata (EV_P) EV_NOEXCEPT
2283{ 2869{
2284 return userdata; 2870 return userdata;
2285} 2871}
2286 2872
2287void 2873void
2288ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2874ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2289{ 2875{
2290 invoke_cb = invoke_pending_cb; 2876 invoke_cb = invoke_pending_cb;
2291} 2877}
2292 2878
2293void 2879void
2294ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2880ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2295{ 2881{
2296 release_cb = release; 2882 release_cb = release;
2297 acquire_cb = acquire; 2883 acquire_cb = acquire;
2298} 2884}
2299#endif 2885#endif
2300 2886
2301/* initialise a loop structure, must be zero-initialised */ 2887/* initialise a loop structure, must be zero-initialised */
2302static void noinline ecb_cold 2888ecb_noinline ecb_cold
2889static void
2303loop_init (EV_P_ unsigned int flags) EV_THROW 2890loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2304{ 2891{
2305 if (!backend) 2892 if (!backend)
2306 { 2893 {
2307 origflags = flags; 2894 origflags = flags;
2308 2895
… …
2353#if EV_ASYNC_ENABLE 2940#if EV_ASYNC_ENABLE
2354 async_pending = 0; 2941 async_pending = 0;
2355#endif 2942#endif
2356 pipe_write_skipped = 0; 2943 pipe_write_skipped = 0;
2357 pipe_write_wanted = 0; 2944 pipe_write_wanted = 0;
2945 evpipe [0] = -1;
2946 evpipe [1] = -1;
2358#if EV_USE_INOTIFY 2947#if EV_USE_INOTIFY
2359 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2948 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2360#endif 2949#endif
2361#if EV_USE_SIGNALFD 2950#if EV_USE_SIGNALFD
2362 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2951 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2364 2953
2365 if (!(flags & EVBACKEND_MASK)) 2954 if (!(flags & EVBACKEND_MASK))
2366 flags |= ev_recommended_backends (); 2955 flags |= ev_recommended_backends ();
2367 2956
2368#if EV_USE_IOCP 2957#if EV_USE_IOCP
2369 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2958 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2370#endif 2959#endif
2371#if EV_USE_PORT 2960#if EV_USE_PORT
2372 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2961 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2373#endif 2962#endif
2374#if EV_USE_KQUEUE 2963#if EV_USE_KQUEUE
2375 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2964 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2965#endif
2966#if EV_USE_LINUXAIO
2967 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2376#endif 2968#endif
2377#if EV_USE_EPOLL 2969#if EV_USE_EPOLL
2378 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2970 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2379#endif 2971#endif
2380#if EV_USE_POLL 2972#if EV_USE_POLL
2381 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2973 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2382#endif 2974#endif
2383#if EV_USE_SELECT 2975#if EV_USE_SELECT
2384 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2976 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2385#endif 2977#endif
2386 2978
2387 ev_prepare_init (&pending_w, pendingcb); 2979 ev_prepare_init (&pending_w, pendingcb);
2388 2980
2389#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2981#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2392#endif 2984#endif
2393 } 2985 }
2394} 2986}
2395 2987
2396/* free up a loop structure */ 2988/* free up a loop structure */
2397void ecb_cold 2989ecb_cold
2990void
2398ev_loop_destroy (EV_P) 2991ev_loop_destroy (EV_P)
2399{ 2992{
2400 int i; 2993 int i;
2401 2994
2402#if EV_MULTIPLICITY 2995#if EV_MULTIPLICITY
… …
2405 return; 2998 return;
2406#endif 2999#endif
2407 3000
2408#if EV_CLEANUP_ENABLE 3001#if EV_CLEANUP_ENABLE
2409 /* queue cleanup watchers (and execute them) */ 3002 /* queue cleanup watchers (and execute them) */
2410 if (expect_false (cleanupcnt)) 3003 if (ecb_expect_false (cleanupcnt))
2411 { 3004 {
2412 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3005 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2413 EV_INVOKE_PENDING; 3006 EV_INVOKE_PENDING;
2414 } 3007 }
2415#endif 3008#endif
… …
2425 if (ev_is_active (&pipe_w)) 3018 if (ev_is_active (&pipe_w))
2426 { 3019 {
2427 /*ev_ref (EV_A);*/ 3020 /*ev_ref (EV_A);*/
2428 /*ev_io_stop (EV_A_ &pipe_w);*/ 3021 /*ev_io_stop (EV_A_ &pipe_w);*/
2429 3022
2430#if EV_USE_EVENTFD
2431 if (evfd >= 0)
2432 close (evfd);
2433#endif
2434
2435 if (evpipe [0] >= 0)
2436 {
2437 EV_WIN32_CLOSE_FD (evpipe [0]); 3023 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2438 EV_WIN32_CLOSE_FD (evpipe [1]); 3024 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2439 }
2440 } 3025 }
2441 3026
2442#if EV_USE_SIGNALFD 3027#if EV_USE_SIGNALFD
2443 if (ev_is_active (&sigfd_w)) 3028 if (ev_is_active (&sigfd_w))
2444 close (sigfd); 3029 close (sigfd);
… …
2451 3036
2452 if (backend_fd >= 0) 3037 if (backend_fd >= 0)
2453 close (backend_fd); 3038 close (backend_fd);
2454 3039
2455#if EV_USE_IOCP 3040#if EV_USE_IOCP
2456 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3041 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2457#endif 3042#endif
2458#if EV_USE_PORT 3043#if EV_USE_PORT
2459 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3044 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2460#endif 3045#endif
2461#if EV_USE_KQUEUE 3046#if EV_USE_KQUEUE
2462 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3047 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3048#endif
3049#if EV_USE_LINUXAIO
3050 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2463#endif 3051#endif
2464#if EV_USE_EPOLL 3052#if EV_USE_EPOLL
2465 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3053 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2466#endif 3054#endif
2467#if EV_USE_POLL 3055#if EV_USE_POLL
2468 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3056 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2469#endif 3057#endif
2470#if EV_USE_SELECT 3058#if EV_USE_SELECT
2471 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3059 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2472#endif 3060#endif
2473 3061
2474 for (i = NUMPRI; i--; ) 3062 for (i = NUMPRI; i--; )
2475 { 3063 {
2476 array_free (pending, [i]); 3064 array_free (pending, [i]);
… …
2518 3106
2519inline_size void 3107inline_size void
2520loop_fork (EV_P) 3108loop_fork (EV_P)
2521{ 3109{
2522#if EV_USE_PORT 3110#if EV_USE_PORT
2523 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3111 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2524#endif 3112#endif
2525#if EV_USE_KQUEUE 3113#if EV_USE_KQUEUE
2526 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3114 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3115#endif
3116#if EV_USE_LINUXAIO
3117 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2527#endif 3118#endif
2528#if EV_USE_EPOLL 3119#if EV_USE_EPOLL
2529 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3120 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2530#endif 3121#endif
2531#if EV_USE_INOTIFY 3122#if EV_USE_INOTIFY
2532 infy_fork (EV_A); 3123 infy_fork (EV_A);
2533#endif 3124#endif
2534 3125
3126#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2535 if (ev_is_active (&pipe_w)) 3127 if (ev_is_active (&pipe_w) && postfork != 2)
2536 { 3128 {
2537 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3129 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2538 3130
2539 ev_ref (EV_A); 3131 ev_ref (EV_A);
2540 ev_io_stop (EV_A_ &pipe_w); 3132 ev_io_stop (EV_A_ &pipe_w);
2541 3133
2542#if EV_USE_EVENTFD
2543 if (evfd >= 0)
2544 close (evfd);
2545#endif
2546
2547 if (evpipe [0] >= 0) 3134 if (evpipe [0] >= 0)
2548 {
2549 EV_WIN32_CLOSE_FD (evpipe [0]); 3135 EV_WIN32_CLOSE_FD (evpipe [0]);
2550 EV_WIN32_CLOSE_FD (evpipe [1]);
2551 }
2552 3136
2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2554 evpipe_init (EV_A); 3137 evpipe_init (EV_A);
2555 /* iterate over everything, in case we missed something before */ 3138 /* iterate over everything, in case we missed something before */
2556 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3139 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2557#endif
2558 } 3140 }
3141#endif
2559 3142
2560 postfork = 0; 3143 postfork = 0;
2561} 3144}
2562 3145
2563#if EV_MULTIPLICITY 3146#if EV_MULTIPLICITY
2564 3147
3148ecb_cold
2565struct ev_loop * ecb_cold 3149struct ev_loop *
2566ev_loop_new (unsigned int flags) EV_THROW 3150ev_loop_new (unsigned int flags) EV_NOEXCEPT
2567{ 3151{
2568 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3152 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2569 3153
2570 memset (EV_A, 0, sizeof (struct ev_loop)); 3154 memset (EV_A, 0, sizeof (struct ev_loop));
2571 loop_init (EV_A_ flags); 3155 loop_init (EV_A_ flags);
… …
2578} 3162}
2579 3163
2580#endif /* multiplicity */ 3164#endif /* multiplicity */
2581 3165
2582#if EV_VERIFY 3166#if EV_VERIFY
2583static void noinline ecb_cold 3167ecb_noinline ecb_cold
3168static void
2584verify_watcher (EV_P_ W w) 3169verify_watcher (EV_P_ W w)
2585{ 3170{
2586 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3171 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2587 3172
2588 if (w->pending) 3173 if (w->pending)
2589 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3174 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2590} 3175}
2591 3176
2592static void noinline ecb_cold 3177ecb_noinline ecb_cold
3178static void
2593verify_heap (EV_P_ ANHE *heap, int N) 3179verify_heap (EV_P_ ANHE *heap, int N)
2594{ 3180{
2595 int i; 3181 int i;
2596 3182
2597 for (i = HEAP0; i < N + HEAP0; ++i) 3183 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2602 3188
2603 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3189 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2604 } 3190 }
2605} 3191}
2606 3192
2607static void noinline ecb_cold 3193ecb_noinline ecb_cold
3194static void
2608array_verify (EV_P_ W *ws, int cnt) 3195array_verify (EV_P_ W *ws, int cnt)
2609{ 3196{
2610 while (cnt--) 3197 while (cnt--)
2611 { 3198 {
2612 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3199 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2615} 3202}
2616#endif 3203#endif
2617 3204
2618#if EV_FEATURE_API 3205#if EV_FEATURE_API
2619void ecb_cold 3206void ecb_cold
2620ev_verify (EV_P) EV_THROW 3207ev_verify (EV_P) EV_NOEXCEPT
2621{ 3208{
2622#if EV_VERIFY 3209#if EV_VERIFY
2623 int i; 3210 int i;
2624 WL w, w2; 3211 WL w, w2;
2625 3212
… …
2701#endif 3288#endif
2702} 3289}
2703#endif 3290#endif
2704 3291
2705#if EV_MULTIPLICITY 3292#if EV_MULTIPLICITY
3293ecb_cold
2706struct ev_loop * ecb_cold 3294struct ev_loop *
2707#else 3295#else
2708int 3296int
2709#endif 3297#endif
2710ev_default_loop (unsigned int flags) EV_THROW 3298ev_default_loop (unsigned int flags) EV_NOEXCEPT
2711{ 3299{
2712 if (!ev_default_loop_ptr) 3300 if (!ev_default_loop_ptr)
2713 { 3301 {
2714#if EV_MULTIPLICITY 3302#if EV_MULTIPLICITY
2715 EV_P = ev_default_loop_ptr = &default_loop_struct; 3303 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2734 3322
2735 return ev_default_loop_ptr; 3323 return ev_default_loop_ptr;
2736} 3324}
2737 3325
2738void 3326void
2739ev_loop_fork (EV_P) EV_THROW 3327ev_loop_fork (EV_P) EV_NOEXCEPT
2740{ 3328{
2741 postfork = 1; 3329 postfork = 1;
2742} 3330}
2743 3331
2744/*****************************************************************************/ 3332/*****************************************************************************/
… …
2748{ 3336{
2749 EV_CB_INVOKE ((W)w, revents); 3337 EV_CB_INVOKE ((W)w, revents);
2750} 3338}
2751 3339
2752unsigned int 3340unsigned int
2753ev_pending_count (EV_P) EV_THROW 3341ev_pending_count (EV_P) EV_NOEXCEPT
2754{ 3342{
2755 int pri; 3343 int pri;
2756 unsigned int count = 0; 3344 unsigned int count = 0;
2757 3345
2758 for (pri = NUMPRI; pri--; ) 3346 for (pri = NUMPRI; pri--; )
2759 count += pendingcnt [pri]; 3347 count += pendingcnt [pri];
2760 3348
2761 return count; 3349 return count;
2762} 3350}
2763 3351
2764void noinline 3352ecb_noinline
3353void
2765ev_invoke_pending (EV_P) 3354ev_invoke_pending (EV_P)
2766{ 3355{
2767 pendingpri = NUMPRI; 3356 pendingpri = NUMPRI;
2768 3357
2769 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3358 do
2770 { 3359 {
2771 --pendingpri; 3360 --pendingpri;
2772 3361
3362 /* pendingpri possibly gets modified in the inner loop */
2773 while (pendingcnt [pendingpri]) 3363 while (pendingcnt [pendingpri])
2774 { 3364 {
2775 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3365 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2776 3366
2777 p->w->pending = 0; 3367 p->w->pending = 0;
2778 EV_CB_INVOKE (p->w, p->events); 3368 EV_CB_INVOKE (p->w, p->events);
2779 EV_FREQUENT_CHECK; 3369 EV_FREQUENT_CHECK;
2780 } 3370 }
2781 } 3371 }
3372 while (pendingpri);
2782} 3373}
2783 3374
2784#if EV_IDLE_ENABLE 3375#if EV_IDLE_ENABLE
2785/* make idle watchers pending. this handles the "call-idle */ 3376/* make idle watchers pending. this handles the "call-idle */
2786/* only when higher priorities are idle" logic */ 3377/* only when higher priorities are idle" logic */
2787inline_size void 3378inline_size void
2788idle_reify (EV_P) 3379idle_reify (EV_P)
2789{ 3380{
2790 if (expect_false (idleall)) 3381 if (ecb_expect_false (idleall))
2791 { 3382 {
2792 int pri; 3383 int pri;
2793 3384
2794 for (pri = NUMPRI; pri--; ) 3385 for (pri = NUMPRI; pri--; )
2795 { 3386 {
… …
2844 } 3435 }
2845} 3436}
2846 3437
2847#if EV_PERIODIC_ENABLE 3438#if EV_PERIODIC_ENABLE
2848 3439
2849static void noinline 3440ecb_noinline
3441static void
2850periodic_recalc (EV_P_ ev_periodic *w) 3442periodic_recalc (EV_P_ ev_periodic *w)
2851{ 3443{
2852 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3444 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2853 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3445 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2854 3446
… …
2856 while (at <= ev_rt_now) 3448 while (at <= ev_rt_now)
2857 { 3449 {
2858 ev_tstamp nat = at + w->interval; 3450 ev_tstamp nat = at + w->interval;
2859 3451
2860 /* when resolution fails us, we use ev_rt_now */ 3452 /* when resolution fails us, we use ev_rt_now */
2861 if (expect_false (nat == at)) 3453 if (ecb_expect_false (nat == at))
2862 { 3454 {
2863 at = ev_rt_now; 3455 at = ev_rt_now;
2864 break; 3456 break;
2865 } 3457 }
2866 3458
… …
2912 } 3504 }
2913} 3505}
2914 3506
2915/* simply recalculate all periodics */ 3507/* simply recalculate all periodics */
2916/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3508/* TODO: maybe ensure that at least one event happens when jumping forward? */
2917static void noinline ecb_cold 3509ecb_noinline ecb_cold
3510static void
2918periodics_reschedule (EV_P) 3511periodics_reschedule (EV_P)
2919{ 3512{
2920 int i; 3513 int i;
2921 3514
2922 /* adjust periodics after time jump */ 3515 /* adjust periodics after time jump */
… …
2935 reheap (periodics, periodiccnt); 3528 reheap (periodics, periodiccnt);
2936} 3529}
2937#endif 3530#endif
2938 3531
2939/* adjust all timers by a given offset */ 3532/* adjust all timers by a given offset */
2940static void noinline ecb_cold 3533ecb_noinline ecb_cold
3534static void
2941timers_reschedule (EV_P_ ev_tstamp adjust) 3535timers_reschedule (EV_P_ ev_tstamp adjust)
2942{ 3536{
2943 int i; 3537 int i;
2944 3538
2945 for (i = 0; i < timercnt; ++i) 3539 for (i = 0; i < timercnt; ++i)
… …
2954/* also detect if there was a timejump, and act accordingly */ 3548/* also detect if there was a timejump, and act accordingly */
2955inline_speed void 3549inline_speed void
2956time_update (EV_P_ ev_tstamp max_block) 3550time_update (EV_P_ ev_tstamp max_block)
2957{ 3551{
2958#if EV_USE_MONOTONIC 3552#if EV_USE_MONOTONIC
2959 if (expect_true (have_monotonic)) 3553 if (ecb_expect_true (have_monotonic))
2960 { 3554 {
2961 int i; 3555 int i;
2962 ev_tstamp odiff = rtmn_diff; 3556 ev_tstamp odiff = rtmn_diff;
2963 3557
2964 mn_now = get_clock (); 3558 mn_now = get_clock ();
2965 3559
2966 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3560 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
2967 /* interpolate in the meantime */ 3561 /* interpolate in the meantime */
2968 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3562 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
2969 { 3563 {
2970 ev_rt_now = rtmn_diff + mn_now; 3564 ev_rt_now = rtmn_diff + mn_now;
2971 return; 3565 return;
2972 } 3566 }
2973 3567
… …
2987 ev_tstamp diff; 3581 ev_tstamp diff;
2988 rtmn_diff = ev_rt_now - mn_now; 3582 rtmn_diff = ev_rt_now - mn_now;
2989 3583
2990 diff = odiff - rtmn_diff; 3584 diff = odiff - rtmn_diff;
2991 3585
2992 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3586 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2993 return; /* all is well */ 3587 return; /* all is well */
2994 3588
2995 ev_rt_now = ev_time (); 3589 ev_rt_now = ev_time ();
2996 mn_now = get_clock (); 3590 mn_now = get_clock ();
2997 now_floor = mn_now; 3591 now_floor = mn_now;
… …
3006 else 3600 else
3007#endif 3601#endif
3008 { 3602 {
3009 ev_rt_now = ev_time (); 3603 ev_rt_now = ev_time ();
3010 3604
3011 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3605 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3012 { 3606 {
3013 /* adjust timers. this is easy, as the offset is the same for all of them */ 3607 /* adjust timers. this is easy, as the offset is the same for all of them */
3014 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3608 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3015#if EV_PERIODIC_ENABLE 3609#if EV_PERIODIC_ENABLE
3016 periodics_reschedule (EV_A); 3610 periodics_reschedule (EV_A);
… …
3039#if EV_VERIFY >= 2 3633#if EV_VERIFY >= 2
3040 ev_verify (EV_A); 3634 ev_verify (EV_A);
3041#endif 3635#endif
3042 3636
3043#ifndef _WIN32 3637#ifndef _WIN32
3044 if (expect_false (curpid)) /* penalise the forking check even more */ 3638 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3045 if (expect_false (getpid () != curpid)) 3639 if (ecb_expect_false (getpid () != curpid))
3046 { 3640 {
3047 curpid = getpid (); 3641 curpid = getpid ();
3048 postfork = 1; 3642 postfork = 1;
3049 } 3643 }
3050#endif 3644#endif
3051 3645
3052#if EV_FORK_ENABLE 3646#if EV_FORK_ENABLE
3053 /* we might have forked, so queue fork handlers */ 3647 /* we might have forked, so queue fork handlers */
3054 if (expect_false (postfork)) 3648 if (ecb_expect_false (postfork))
3055 if (forkcnt) 3649 if (forkcnt)
3056 { 3650 {
3057 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3651 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3058 EV_INVOKE_PENDING; 3652 EV_INVOKE_PENDING;
3059 } 3653 }
3060#endif 3654#endif
3061 3655
3062#if EV_PREPARE_ENABLE 3656#if EV_PREPARE_ENABLE
3063 /* queue prepare watchers (and execute them) */ 3657 /* queue prepare watchers (and execute them) */
3064 if (expect_false (preparecnt)) 3658 if (ecb_expect_false (preparecnt))
3065 { 3659 {
3066 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3660 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3067 EV_INVOKE_PENDING; 3661 EV_INVOKE_PENDING;
3068 } 3662 }
3069#endif 3663#endif
3070 3664
3071 if (expect_false (loop_done)) 3665 if (ecb_expect_false (loop_done))
3072 break; 3666 break;
3073 3667
3074 /* we might have forked, so reify kernel state if necessary */ 3668 /* we might have forked, so reify kernel state if necessary */
3075 if (expect_false (postfork)) 3669 if (ecb_expect_false (postfork))
3076 loop_fork (EV_A); 3670 loop_fork (EV_A);
3077 3671
3078 /* update fd-related kernel structures */ 3672 /* update fd-related kernel structures */
3079 fd_reify (EV_A); 3673 fd_reify (EV_A);
3080 3674
… …
3092 /* from now on, we want a pipe-wake-up */ 3686 /* from now on, we want a pipe-wake-up */
3093 pipe_write_wanted = 1; 3687 pipe_write_wanted = 1;
3094 3688
3095 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3689 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3096 3690
3097 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3691 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3098 { 3692 {
3099 waittime = MAX_BLOCKTIME; 3693 waittime = MAX_BLOCKTIME;
3100 3694
3101 if (timercnt) 3695 if (timercnt)
3102 { 3696 {
… …
3111 if (waittime > to) waittime = to; 3705 if (waittime > to) waittime = to;
3112 } 3706 }
3113#endif 3707#endif
3114 3708
3115 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3709 /* don't let timeouts decrease the waittime below timeout_blocktime */
3116 if (expect_false (waittime < timeout_blocktime)) 3710 if (ecb_expect_false (waittime < timeout_blocktime))
3117 waittime = timeout_blocktime; 3711 waittime = timeout_blocktime;
3118 3712
3119 /* at this point, we NEED to wait, so we have to ensure */ 3713 /* at this point, we NEED to wait, so we have to ensure */
3120 /* to pass a minimum nonzero value to the backend */ 3714 /* to pass a minimum nonzero value to the backend */
3121 if (expect_false (waittime < backend_mintime)) 3715 if (ecb_expect_false (waittime < backend_mintime))
3122 waittime = backend_mintime; 3716 waittime = backend_mintime;
3123 3717
3124 /* extra check because io_blocktime is commonly 0 */ 3718 /* extra check because io_blocktime is commonly 0 */
3125 if (expect_false (io_blocktime)) 3719 if (ecb_expect_false (io_blocktime))
3126 { 3720 {
3127 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3721 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3128 3722
3129 if (sleeptime > waittime - backend_mintime) 3723 if (sleeptime > waittime - backend_mintime)
3130 sleeptime = waittime - backend_mintime; 3724 sleeptime = waittime - backend_mintime;
3131 3725
3132 if (expect_true (sleeptime > 0.)) 3726 if (ecb_expect_true (sleeptime > 0.))
3133 { 3727 {
3134 ev_sleep (sleeptime); 3728 ev_sleep (sleeptime);
3135 waittime -= sleeptime; 3729 waittime -= sleeptime;
3136 } 3730 }
3137 } 3731 }
… …
3151 { 3745 {
3152 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3746 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3153 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3747 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3154 } 3748 }
3155 3749
3156
3157 /* update ev_rt_now, do magic */ 3750 /* update ev_rt_now, do magic */
3158 time_update (EV_A_ waittime + sleeptime); 3751 time_update (EV_A_ waittime + sleeptime);
3159 } 3752 }
3160 3753
3161 /* queue pending timers and reschedule them */ 3754 /* queue pending timers and reschedule them */
… …
3169 idle_reify (EV_A); 3762 idle_reify (EV_A);
3170#endif 3763#endif
3171 3764
3172#if EV_CHECK_ENABLE 3765#if EV_CHECK_ENABLE
3173 /* queue check watchers, to be executed first */ 3766 /* queue check watchers, to be executed first */
3174 if (expect_false (checkcnt)) 3767 if (ecb_expect_false (checkcnt))
3175 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3768 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3176#endif 3769#endif
3177 3770
3178 EV_INVOKE_PENDING; 3771 EV_INVOKE_PENDING;
3179 } 3772 }
3180 while (expect_true ( 3773 while (ecb_expect_true (
3181 activecnt 3774 activecnt
3182 && !loop_done 3775 && !loop_done
3183 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3776 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3184 )); 3777 ));
3185 3778
… …
3192 3785
3193 return activecnt; 3786 return activecnt;
3194} 3787}
3195 3788
3196void 3789void
3197ev_break (EV_P_ int how) EV_THROW 3790ev_break (EV_P_ int how) EV_NOEXCEPT
3198{ 3791{
3199 loop_done = how; 3792 loop_done = how;
3200} 3793}
3201 3794
3202void 3795void
3203ev_ref (EV_P) EV_THROW 3796ev_ref (EV_P) EV_NOEXCEPT
3204{ 3797{
3205 ++activecnt; 3798 ++activecnt;
3206} 3799}
3207 3800
3208void 3801void
3209ev_unref (EV_P) EV_THROW 3802ev_unref (EV_P) EV_NOEXCEPT
3210{ 3803{
3211 --activecnt; 3804 --activecnt;
3212} 3805}
3213 3806
3214void 3807void
3215ev_now_update (EV_P) EV_THROW 3808ev_now_update (EV_P) EV_NOEXCEPT
3216{ 3809{
3217 time_update (EV_A_ 1e100); 3810 time_update (EV_A_ 1e100);
3218} 3811}
3219 3812
3220void 3813void
3221ev_suspend (EV_P) EV_THROW 3814ev_suspend (EV_P) EV_NOEXCEPT
3222{ 3815{
3223 ev_now_update (EV_A); 3816 ev_now_update (EV_A);
3224} 3817}
3225 3818
3226void 3819void
3227ev_resume (EV_P) EV_THROW 3820ev_resume (EV_P) EV_NOEXCEPT
3228{ 3821{
3229 ev_tstamp mn_prev = mn_now; 3822 ev_tstamp mn_prev = mn_now;
3230 3823
3231 ev_now_update (EV_A); 3824 ev_now_update (EV_A);
3232 timers_reschedule (EV_A_ mn_now - mn_prev); 3825 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3249inline_size void 3842inline_size void
3250wlist_del (WL *head, WL elem) 3843wlist_del (WL *head, WL elem)
3251{ 3844{
3252 while (*head) 3845 while (*head)
3253 { 3846 {
3254 if (expect_true (*head == elem)) 3847 if (ecb_expect_true (*head == elem))
3255 { 3848 {
3256 *head = elem->next; 3849 *head = elem->next;
3257 break; 3850 break;
3258 } 3851 }
3259 3852
… …
3271 w->pending = 0; 3864 w->pending = 0;
3272 } 3865 }
3273} 3866}
3274 3867
3275int 3868int
3276ev_clear_pending (EV_P_ void *w) EV_THROW 3869ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3277{ 3870{
3278 W w_ = (W)w; 3871 W w_ = (W)w;
3279 int pending = w_->pending; 3872 int pending = w_->pending;
3280 3873
3281 if (expect_true (pending)) 3874 if (ecb_expect_true (pending))
3282 { 3875 {
3283 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 3876 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3284 p->w = (W)&pending_w; 3877 p->w = (W)&pending_w;
3285 w_->pending = 0; 3878 w_->pending = 0;
3286 return p->events; 3879 return p->events;
… …
3313 w->active = 0; 3906 w->active = 0;
3314} 3907}
3315 3908
3316/*****************************************************************************/ 3909/*****************************************************************************/
3317 3910
3318void noinline 3911ecb_noinline
3912void
3319ev_io_start (EV_P_ ev_io *w) EV_THROW 3913ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3320{ 3914{
3321 int fd = w->fd; 3915 int fd = w->fd;
3322 3916
3323 if (expect_false (ev_is_active (w))) 3917 if (ecb_expect_false (ev_is_active (w)))
3324 return; 3918 return;
3325 3919
3326 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3920 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3327 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3921 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3328 3922
3923#if EV_VERIFY >= 2
3924 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
3925#endif
3329 EV_FREQUENT_CHECK; 3926 EV_FREQUENT_CHECK;
3330 3927
3331 ev_start (EV_A_ (W)w, 1); 3928 ev_start (EV_A_ (W)w, 1);
3332 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3929 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3333 wlist_add (&anfds[fd].head, (WL)w); 3930 wlist_add (&anfds[fd].head, (WL)w);
3334 3931
3335 /* common bug, apparently */ 3932 /* common bug, apparently */
3336 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3933 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3337 3934
… …
3339 w->events &= ~EV__IOFDSET; 3936 w->events &= ~EV__IOFDSET;
3340 3937
3341 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
3342} 3939}
3343 3940
3344void noinline 3941ecb_noinline
3942void
3345ev_io_stop (EV_P_ ev_io *w) EV_THROW 3943ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3346{ 3944{
3347 clear_pending (EV_A_ (W)w); 3945 clear_pending (EV_A_ (W)w);
3348 if (expect_false (!ev_is_active (w))) 3946 if (ecb_expect_false (!ev_is_active (w)))
3349 return; 3947 return;
3350 3948
3351 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 3949 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3352 3950
3951#if EV_VERIFY >= 2
3952 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
3953#endif
3353 EV_FREQUENT_CHECK; 3954 EV_FREQUENT_CHECK;
3354 3955
3355 wlist_del (&anfds[w->fd].head, (WL)w); 3956 wlist_del (&anfds[w->fd].head, (WL)w);
3356 ev_stop (EV_A_ (W)w); 3957 ev_stop (EV_A_ (W)w);
3357 3958
3358 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3959 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3359 3960
3360 EV_FREQUENT_CHECK; 3961 EV_FREQUENT_CHECK;
3361} 3962}
3362 3963
3363void noinline 3964ecb_noinline
3965void
3364ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3966ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3365{ 3967{
3366 if (expect_false (ev_is_active (w))) 3968 if (ecb_expect_false (ev_is_active (w)))
3367 return; 3969 return;
3368 3970
3369 ev_at (w) += mn_now; 3971 ev_at (w) += mn_now;
3370 3972
3371 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 3973 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3372 3974
3373 EV_FREQUENT_CHECK; 3975 EV_FREQUENT_CHECK;
3374 3976
3375 ++timercnt; 3977 ++timercnt;
3376 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3978 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3377 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3979 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3378 ANHE_w (timers [ev_active (w)]) = (WT)w; 3980 ANHE_w (timers [ev_active (w)]) = (WT)w;
3379 ANHE_at_cache (timers [ev_active (w)]); 3981 ANHE_at_cache (timers [ev_active (w)]);
3380 upheap (timers, ev_active (w)); 3982 upheap (timers, ev_active (w));
3381 3983
3382 EV_FREQUENT_CHECK; 3984 EV_FREQUENT_CHECK;
3383 3985
3384 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3986 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3385} 3987}
3386 3988
3387void noinline 3989ecb_noinline
3990void
3388ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3991ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3389{ 3992{
3390 clear_pending (EV_A_ (W)w); 3993 clear_pending (EV_A_ (W)w);
3391 if (expect_false (!ev_is_active (w))) 3994 if (ecb_expect_false (!ev_is_active (w)))
3392 return; 3995 return;
3393 3996
3394 EV_FREQUENT_CHECK; 3997 EV_FREQUENT_CHECK;
3395 3998
3396 { 3999 {
… …
3398 4001
3399 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4002 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3400 4003
3401 --timercnt; 4004 --timercnt;
3402 4005
3403 if (expect_true (active < timercnt + HEAP0)) 4006 if (ecb_expect_true (active < timercnt + HEAP0))
3404 { 4007 {
3405 timers [active] = timers [timercnt + HEAP0]; 4008 timers [active] = timers [timercnt + HEAP0];
3406 adjustheap (timers, timercnt, active); 4009 adjustheap (timers, timercnt, active);
3407 } 4010 }
3408 } 4011 }
… …
3412 ev_stop (EV_A_ (W)w); 4015 ev_stop (EV_A_ (W)w);
3413 4016
3414 EV_FREQUENT_CHECK; 4017 EV_FREQUENT_CHECK;
3415} 4018}
3416 4019
3417void noinline 4020ecb_noinline
4021void
3418ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4022ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3419{ 4023{
3420 EV_FREQUENT_CHECK; 4024 EV_FREQUENT_CHECK;
3421 4025
3422 clear_pending (EV_A_ (W)w); 4026 clear_pending (EV_A_ (W)w);
3423 4027
… …
3440 4044
3441 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
3442} 4046}
3443 4047
3444ev_tstamp 4048ev_tstamp
3445ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4049ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3446{ 4050{
3447 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4051 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3448} 4052}
3449 4053
3450#if EV_PERIODIC_ENABLE 4054#if EV_PERIODIC_ENABLE
3451void noinline 4055ecb_noinline
4056void
3452ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4057ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3453{ 4058{
3454 if (expect_false (ev_is_active (w))) 4059 if (ecb_expect_false (ev_is_active (w)))
3455 return; 4060 return;
3456 4061
3457 if (w->reschedule_cb) 4062 if (w->reschedule_cb)
3458 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4063 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3459 else if (w->interval) 4064 else if (w->interval)
… …
3466 4071
3467 EV_FREQUENT_CHECK; 4072 EV_FREQUENT_CHECK;
3468 4073
3469 ++periodiccnt; 4074 ++periodiccnt;
3470 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4075 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3471 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4076 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3472 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4077 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3473 ANHE_at_cache (periodics [ev_active (w)]); 4078 ANHE_at_cache (periodics [ev_active (w)]);
3474 upheap (periodics, ev_active (w)); 4079 upheap (periodics, ev_active (w));
3475 4080
3476 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3477 4082
3478 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4083 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3479} 4084}
3480 4085
3481void noinline 4086ecb_noinline
4087void
3482ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4088ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3483{ 4089{
3484 clear_pending (EV_A_ (W)w); 4090 clear_pending (EV_A_ (W)w);
3485 if (expect_false (!ev_is_active (w))) 4091 if (ecb_expect_false (!ev_is_active (w)))
3486 return; 4092 return;
3487 4093
3488 EV_FREQUENT_CHECK; 4094 EV_FREQUENT_CHECK;
3489 4095
3490 { 4096 {
… …
3492 4098
3493 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4099 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3494 4100
3495 --periodiccnt; 4101 --periodiccnt;
3496 4102
3497 if (expect_true (active < periodiccnt + HEAP0)) 4103 if (ecb_expect_true (active < periodiccnt + HEAP0))
3498 { 4104 {
3499 periodics [active] = periodics [periodiccnt + HEAP0]; 4105 periodics [active] = periodics [periodiccnt + HEAP0];
3500 adjustheap (periodics, periodiccnt, active); 4106 adjustheap (periodics, periodiccnt, active);
3501 } 4107 }
3502 } 4108 }
… …
3504 ev_stop (EV_A_ (W)w); 4110 ev_stop (EV_A_ (W)w);
3505 4111
3506 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3507} 4113}
3508 4114
3509void noinline 4115ecb_noinline
4116void
3510ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4117ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3511{ 4118{
3512 /* TODO: use adjustheap and recalculation */ 4119 /* TODO: use adjustheap and recalculation */
3513 ev_periodic_stop (EV_A_ w); 4120 ev_periodic_stop (EV_A_ w);
3514 ev_periodic_start (EV_A_ w); 4121 ev_periodic_start (EV_A_ w);
3515} 4122}
… …
3519# define SA_RESTART 0 4126# define SA_RESTART 0
3520#endif 4127#endif
3521 4128
3522#if EV_SIGNAL_ENABLE 4129#if EV_SIGNAL_ENABLE
3523 4130
3524void noinline 4131ecb_noinline
4132void
3525ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4133ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3526{ 4134{
3527 if (expect_false (ev_is_active (w))) 4135 if (ecb_expect_false (ev_is_active (w)))
3528 return; 4136 return;
3529 4137
3530 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4138 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3531 4139
3532#if EV_MULTIPLICITY 4140#if EV_MULTIPLICITY
3533 assert (("libev: a signal must not be attached to two different loops", 4141 assert (("libev: a signal must not be attached to two different loops",
3534 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4142 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3535 4143
3536 signals [w->signum - 1].loop = EV_A; 4144 signals [w->signum - 1].loop = EV_A;
4145 ECB_MEMORY_FENCE_RELEASE;
3537#endif 4146#endif
3538 4147
3539 EV_FREQUENT_CHECK; 4148 EV_FREQUENT_CHECK;
3540 4149
3541#if EV_USE_SIGNALFD 4150#if EV_USE_SIGNALFD
… …
3600 } 4209 }
3601 4210
3602 EV_FREQUENT_CHECK; 4211 EV_FREQUENT_CHECK;
3603} 4212}
3604 4213
3605void noinline 4214ecb_noinline
4215void
3606ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4216ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3607{ 4217{
3608 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3609 if (expect_false (!ev_is_active (w))) 4219 if (ecb_expect_false (!ev_is_active (w)))
3610 return; 4220 return;
3611 4221
3612 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3613 4223
3614 wlist_del (&signals [w->signum - 1].head, (WL)w); 4224 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3642#endif 4252#endif
3643 4253
3644#if EV_CHILD_ENABLE 4254#if EV_CHILD_ENABLE
3645 4255
3646void 4256void
3647ev_child_start (EV_P_ ev_child *w) EV_THROW 4257ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3648{ 4258{
3649#if EV_MULTIPLICITY 4259#if EV_MULTIPLICITY
3650 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4260 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3651#endif 4261#endif
3652 if (expect_false (ev_is_active (w))) 4262 if (ecb_expect_false (ev_is_active (w)))
3653 return; 4263 return;
3654 4264
3655 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
3656 4266
3657 ev_start (EV_A_ (W)w, 1); 4267 ev_start (EV_A_ (W)w, 1);
… …
3659 4269
3660 EV_FREQUENT_CHECK; 4270 EV_FREQUENT_CHECK;
3661} 4271}
3662 4272
3663void 4273void
3664ev_child_stop (EV_P_ ev_child *w) EV_THROW 4274ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3665{ 4275{
3666 clear_pending (EV_A_ (W)w); 4276 clear_pending (EV_A_ (W)w);
3667 if (expect_false (!ev_is_active (w))) 4277 if (ecb_expect_false (!ev_is_active (w)))
3668 return; 4278 return;
3669 4279
3670 EV_FREQUENT_CHECK; 4280 EV_FREQUENT_CHECK;
3671 4281
3672 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4282 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3686 4296
3687#define DEF_STAT_INTERVAL 5.0074891 4297#define DEF_STAT_INTERVAL 5.0074891
3688#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4298#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3689#define MIN_STAT_INTERVAL 0.1074891 4299#define MIN_STAT_INTERVAL 0.1074891
3690 4300
3691static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4301ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3692 4302
3693#if EV_USE_INOTIFY 4303#if EV_USE_INOTIFY
3694 4304
3695/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4305/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3696# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4306# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3697 4307
3698static void noinline 4308ecb_noinline
4309static void
3699infy_add (EV_P_ ev_stat *w) 4310infy_add (EV_P_ ev_stat *w)
3700{ 4311{
3701 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); 4312 w->wd = inotify_add_watch (fs_fd, w->path,
4313 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4314 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4315 | IN_DONT_FOLLOW | IN_MASK_ADD);
3702 4316
3703 if (w->wd >= 0) 4317 if (w->wd >= 0)
3704 { 4318 {
3705 struct statfs sfs; 4319 struct statfs sfs;
3706 4320
… …
3710 4324
3711 if (!fs_2625) 4325 if (!fs_2625)
3712 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4326 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3713 else if (!statfs (w->path, &sfs) 4327 else if (!statfs (w->path, &sfs)
3714 && (sfs.f_type == 0x1373 /* devfs */ 4328 && (sfs.f_type == 0x1373 /* devfs */
4329 || sfs.f_type == 0x4006 /* fat */
4330 || sfs.f_type == 0x4d44 /* msdos */
3715 || sfs.f_type == 0xEF53 /* ext2/3 */ 4331 || sfs.f_type == 0xEF53 /* ext2/3 */
4332 || sfs.f_type == 0x72b6 /* jffs2 */
4333 || sfs.f_type == 0x858458f6 /* ramfs */
4334 || sfs.f_type == 0x5346544e /* ntfs */
3716 || sfs.f_type == 0x3153464a /* jfs */ 4335 || sfs.f_type == 0x3153464a /* jfs */
4336 || sfs.f_type == 0x9123683e /* btrfs */
3717 || sfs.f_type == 0x52654973 /* reiser3 */ 4337 || sfs.f_type == 0x52654973 /* reiser3 */
3718 || sfs.f_type == 0x01021994 /* tempfs */ 4338 || sfs.f_type == 0x01021994 /* tmpfs */
3719 || sfs.f_type == 0x58465342 /* xfs */)) 4339 || sfs.f_type == 0x58465342 /* xfs */))
3720 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4340 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3721 else 4341 else
3722 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4342 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3723 } 4343 }
… …
3758 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4378 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3759 ev_timer_again (EV_A_ &w->timer); 4379 ev_timer_again (EV_A_ &w->timer);
3760 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4380 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3761} 4381}
3762 4382
3763static void noinline 4383ecb_noinline
4384static void
3764infy_del (EV_P_ ev_stat *w) 4385infy_del (EV_P_ ev_stat *w)
3765{ 4386{
3766 int slot; 4387 int slot;
3767 int wd = w->wd; 4388 int wd = w->wd;
3768 4389
… …
3775 4396
3776 /* remove this watcher, if others are watching it, they will rearm */ 4397 /* remove this watcher, if others are watching it, they will rearm */
3777 inotify_rm_watch (fs_fd, wd); 4398 inotify_rm_watch (fs_fd, wd);
3778} 4399}
3779 4400
3780static void noinline 4401ecb_noinline
4402static void
3781infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4403infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3782{ 4404{
3783 if (slot < 0) 4405 if (slot < 0)
3784 /* overflow, need to check for all hash slots */ 4406 /* overflow, need to check for all hash slots */
3785 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4407 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3821 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4443 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3822 ofs += sizeof (struct inotify_event) + ev->len; 4444 ofs += sizeof (struct inotify_event) + ev->len;
3823 } 4445 }
3824} 4446}
3825 4447
3826inline_size void ecb_cold 4448inline_size ecb_cold
4449void
3827ev_check_2625 (EV_P) 4450ev_check_2625 (EV_P)
3828{ 4451{
3829 /* kernels < 2.6.25 are borked 4452 /* kernels < 2.6.25 are borked
3830 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4453 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3831 */ 4454 */
… …
3921#else 4544#else
3922# define EV_LSTAT(p,b) lstat (p, b) 4545# define EV_LSTAT(p,b) lstat (p, b)
3923#endif 4546#endif
3924 4547
3925void 4548void
3926ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4549ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3927{ 4550{
3928 if (lstat (w->path, &w->attr) < 0) 4551 if (lstat (w->path, &w->attr) < 0)
3929 w->attr.st_nlink = 0; 4552 w->attr.st_nlink = 0;
3930 else if (!w->attr.st_nlink) 4553 else if (!w->attr.st_nlink)
3931 w->attr.st_nlink = 1; 4554 w->attr.st_nlink = 1;
3932} 4555}
3933 4556
3934static void noinline 4557ecb_noinline
4558static void
3935stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4559stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3936{ 4560{
3937 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4561 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3938 4562
3939 ev_statdata prev = w->attr; 4563 ev_statdata prev = w->attr;
… …
3970 ev_feed_event (EV_A_ w, EV_STAT); 4594 ev_feed_event (EV_A_ w, EV_STAT);
3971 } 4595 }
3972} 4596}
3973 4597
3974void 4598void
3975ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4599ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3976{ 4600{
3977 if (expect_false (ev_is_active (w))) 4601 if (ecb_expect_false (ev_is_active (w)))
3978 return; 4602 return;
3979 4603
3980 ev_stat_stat (EV_A_ w); 4604 ev_stat_stat (EV_A_ w);
3981 4605
3982 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4606 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4001 4625
4002 EV_FREQUENT_CHECK; 4626 EV_FREQUENT_CHECK;
4003} 4627}
4004 4628
4005void 4629void
4006ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4630ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4007{ 4631{
4008 clear_pending (EV_A_ (W)w); 4632 clear_pending (EV_A_ (W)w);
4009 if (expect_false (!ev_is_active (w))) 4633 if (ecb_expect_false (!ev_is_active (w)))
4010 return; 4634 return;
4011 4635
4012 EV_FREQUENT_CHECK; 4636 EV_FREQUENT_CHECK;
4013 4637
4014#if EV_USE_INOTIFY 4638#if EV_USE_INOTIFY
… …
4027} 4651}
4028#endif 4652#endif
4029 4653
4030#if EV_IDLE_ENABLE 4654#if EV_IDLE_ENABLE
4031void 4655void
4032ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4656ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4033{ 4657{
4034 if (expect_false (ev_is_active (w))) 4658 if (ecb_expect_false (ev_is_active (w)))
4035 return; 4659 return;
4036 4660
4037 pri_adjust (EV_A_ (W)w); 4661 pri_adjust (EV_A_ (W)w);
4038 4662
4039 EV_FREQUENT_CHECK; 4663 EV_FREQUENT_CHECK;
… …
4042 int active = ++idlecnt [ABSPRI (w)]; 4666 int active = ++idlecnt [ABSPRI (w)];
4043 4667
4044 ++idleall; 4668 ++idleall;
4045 ev_start (EV_A_ (W)w, active); 4669 ev_start (EV_A_ (W)w, active);
4046 4670
4047 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4671 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4048 idles [ABSPRI (w)][active - 1] = w; 4672 idles [ABSPRI (w)][active - 1] = w;
4049 } 4673 }
4050 4674
4051 EV_FREQUENT_CHECK; 4675 EV_FREQUENT_CHECK;
4052} 4676}
4053 4677
4054void 4678void
4055ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4679ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4056{ 4680{
4057 clear_pending (EV_A_ (W)w); 4681 clear_pending (EV_A_ (W)w);
4058 if (expect_false (!ev_is_active (w))) 4682 if (ecb_expect_false (!ev_is_active (w)))
4059 return; 4683 return;
4060 4684
4061 EV_FREQUENT_CHECK; 4685 EV_FREQUENT_CHECK;
4062 4686
4063 { 4687 {
… …
4074} 4698}
4075#endif 4699#endif
4076 4700
4077#if EV_PREPARE_ENABLE 4701#if EV_PREPARE_ENABLE
4078void 4702void
4079ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4703ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4080{ 4704{
4081 if (expect_false (ev_is_active (w))) 4705 if (ecb_expect_false (ev_is_active (w)))
4082 return; 4706 return;
4083 4707
4084 EV_FREQUENT_CHECK; 4708 EV_FREQUENT_CHECK;
4085 4709
4086 ev_start (EV_A_ (W)w, ++preparecnt); 4710 ev_start (EV_A_ (W)w, ++preparecnt);
4087 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4711 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4088 prepares [preparecnt - 1] = w; 4712 prepares [preparecnt - 1] = w;
4089 4713
4090 EV_FREQUENT_CHECK; 4714 EV_FREQUENT_CHECK;
4091} 4715}
4092 4716
4093void 4717void
4094ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4718ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4095{ 4719{
4096 clear_pending (EV_A_ (W)w); 4720 clear_pending (EV_A_ (W)w);
4097 if (expect_false (!ev_is_active (w))) 4721 if (ecb_expect_false (!ev_is_active (w)))
4098 return; 4722 return;
4099 4723
4100 EV_FREQUENT_CHECK; 4724 EV_FREQUENT_CHECK;
4101 4725
4102 { 4726 {
… …
4112} 4736}
4113#endif 4737#endif
4114 4738
4115#if EV_CHECK_ENABLE 4739#if EV_CHECK_ENABLE
4116void 4740void
4117ev_check_start (EV_P_ ev_check *w) EV_THROW 4741ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4118{ 4742{
4119 if (expect_false (ev_is_active (w))) 4743 if (ecb_expect_false (ev_is_active (w)))
4120 return; 4744 return;
4121 4745
4122 EV_FREQUENT_CHECK; 4746 EV_FREQUENT_CHECK;
4123 4747
4124 ev_start (EV_A_ (W)w, ++checkcnt); 4748 ev_start (EV_A_ (W)w, ++checkcnt);
4125 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4749 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4126 checks [checkcnt - 1] = w; 4750 checks [checkcnt - 1] = w;
4127 4751
4128 EV_FREQUENT_CHECK; 4752 EV_FREQUENT_CHECK;
4129} 4753}
4130 4754
4131void 4755void
4132ev_check_stop (EV_P_ ev_check *w) EV_THROW 4756ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4133{ 4757{
4134 clear_pending (EV_A_ (W)w); 4758 clear_pending (EV_A_ (W)w);
4135 if (expect_false (!ev_is_active (w))) 4759 if (ecb_expect_false (!ev_is_active (w)))
4136 return; 4760 return;
4137 4761
4138 EV_FREQUENT_CHECK; 4762 EV_FREQUENT_CHECK;
4139 4763
4140 { 4764 {
… …
4149 EV_FREQUENT_CHECK; 4773 EV_FREQUENT_CHECK;
4150} 4774}
4151#endif 4775#endif
4152 4776
4153#if EV_EMBED_ENABLE 4777#if EV_EMBED_ENABLE
4154void noinline 4778ecb_noinline
4779void
4155ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4780ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4156{ 4781{
4157 ev_run (w->other, EVRUN_NOWAIT); 4782 ev_run (w->other, EVRUN_NOWAIT);
4158} 4783}
4159 4784
4160static void 4785static void
… …
4208 ev_idle_stop (EV_A_ idle); 4833 ev_idle_stop (EV_A_ idle);
4209} 4834}
4210#endif 4835#endif
4211 4836
4212void 4837void
4213ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4838ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4214{ 4839{
4215 if (expect_false (ev_is_active (w))) 4840 if (ecb_expect_false (ev_is_active (w)))
4216 return; 4841 return;
4217 4842
4218 { 4843 {
4219 EV_P = w->other; 4844 EV_P = w->other;
4220 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4845 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4239 4864
4240 EV_FREQUENT_CHECK; 4865 EV_FREQUENT_CHECK;
4241} 4866}
4242 4867
4243void 4868void
4244ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4869ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4245{ 4870{
4246 clear_pending (EV_A_ (W)w); 4871 clear_pending (EV_A_ (W)w);
4247 if (expect_false (!ev_is_active (w))) 4872 if (ecb_expect_false (!ev_is_active (w)))
4248 return; 4873 return;
4249 4874
4250 EV_FREQUENT_CHECK; 4875 EV_FREQUENT_CHECK;
4251 4876
4252 ev_io_stop (EV_A_ &w->io); 4877 ev_io_stop (EV_A_ &w->io);
… …
4259} 4884}
4260#endif 4885#endif
4261 4886
4262#if EV_FORK_ENABLE 4887#if EV_FORK_ENABLE
4263void 4888void
4264ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4889ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4265{ 4890{
4266 if (expect_false (ev_is_active (w))) 4891 if (ecb_expect_false (ev_is_active (w)))
4267 return; 4892 return;
4268 4893
4269 EV_FREQUENT_CHECK; 4894 EV_FREQUENT_CHECK;
4270 4895
4271 ev_start (EV_A_ (W)w, ++forkcnt); 4896 ev_start (EV_A_ (W)w, ++forkcnt);
4272 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4897 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4273 forks [forkcnt - 1] = w; 4898 forks [forkcnt - 1] = w;
4274 4899
4275 EV_FREQUENT_CHECK; 4900 EV_FREQUENT_CHECK;
4276} 4901}
4277 4902
4278void 4903void
4279ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4904ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4280{ 4905{
4281 clear_pending (EV_A_ (W)w); 4906 clear_pending (EV_A_ (W)w);
4282 if (expect_false (!ev_is_active (w))) 4907 if (ecb_expect_false (!ev_is_active (w)))
4283 return; 4908 return;
4284 4909
4285 EV_FREQUENT_CHECK; 4910 EV_FREQUENT_CHECK;
4286 4911
4287 { 4912 {
… …
4297} 4922}
4298#endif 4923#endif
4299 4924
4300#if EV_CLEANUP_ENABLE 4925#if EV_CLEANUP_ENABLE
4301void 4926void
4302ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4927ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4303{ 4928{
4304 if (expect_false (ev_is_active (w))) 4929 if (ecb_expect_false (ev_is_active (w)))
4305 return; 4930 return;
4306 4931
4307 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
4308 4933
4309 ev_start (EV_A_ (W)w, ++cleanupcnt); 4934 ev_start (EV_A_ (W)w, ++cleanupcnt);
4310 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4935 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4311 cleanups [cleanupcnt - 1] = w; 4936 cleanups [cleanupcnt - 1] = w;
4312 4937
4313 /* cleanup watchers should never keep a refcount on the loop */ 4938 /* cleanup watchers should never keep a refcount on the loop */
4314 ev_unref (EV_A); 4939 ev_unref (EV_A);
4315 EV_FREQUENT_CHECK; 4940 EV_FREQUENT_CHECK;
4316} 4941}
4317 4942
4318void 4943void
4319ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4944ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4320{ 4945{
4321 clear_pending (EV_A_ (W)w); 4946 clear_pending (EV_A_ (W)w);
4322 if (expect_false (!ev_is_active (w))) 4947 if (ecb_expect_false (!ev_is_active (w)))
4323 return; 4948 return;
4324 4949
4325 EV_FREQUENT_CHECK; 4950 EV_FREQUENT_CHECK;
4326 ev_ref (EV_A); 4951 ev_ref (EV_A);
4327 4952
… …
4338} 4963}
4339#endif 4964#endif
4340 4965
4341#if EV_ASYNC_ENABLE 4966#if EV_ASYNC_ENABLE
4342void 4967void
4343ev_async_start (EV_P_ ev_async *w) EV_THROW 4968ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4344{ 4969{
4345 if (expect_false (ev_is_active (w))) 4970 if (ecb_expect_false (ev_is_active (w)))
4346 return; 4971 return;
4347 4972
4348 w->sent = 0; 4973 w->sent = 0;
4349 4974
4350 evpipe_init (EV_A); 4975 evpipe_init (EV_A);
4351 4976
4352 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
4353 4978
4354 ev_start (EV_A_ (W)w, ++asynccnt); 4979 ev_start (EV_A_ (W)w, ++asynccnt);
4355 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4980 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4356 asyncs [asynccnt - 1] = w; 4981 asyncs [asynccnt - 1] = w;
4357 4982
4358 EV_FREQUENT_CHECK; 4983 EV_FREQUENT_CHECK;
4359} 4984}
4360 4985
4361void 4986void
4362ev_async_stop (EV_P_ ev_async *w) EV_THROW 4987ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4363{ 4988{
4364 clear_pending (EV_A_ (W)w); 4989 clear_pending (EV_A_ (W)w);
4365 if (expect_false (!ev_is_active (w))) 4990 if (ecb_expect_false (!ev_is_active (w)))
4366 return; 4991 return;
4367 4992
4368 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4369 4994
4370 { 4995 {
… …
4378 5003
4379 EV_FREQUENT_CHECK; 5004 EV_FREQUENT_CHECK;
4380} 5005}
4381 5006
4382void 5007void
4383ev_async_send (EV_P_ ev_async *w) EV_THROW 5008ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4384{ 5009{
4385 w->sent = 1; 5010 w->sent = 1;
4386 evpipe_write (EV_A_ &async_pending); 5011 evpipe_write (EV_A_ &async_pending);
4387} 5012}
4388#endif 5013#endif
… …
4425 5050
4426 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5051 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4427} 5052}
4428 5053
4429void 5054void
4430ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5055ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4431{ 5056{
4432 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5057 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4433
4434 if (expect_false (!once))
4435 {
4436 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4437 return;
4438 }
4439 5058
4440 once->cb = cb; 5059 once->cb = cb;
4441 once->arg = arg; 5060 once->arg = arg;
4442 5061
4443 ev_init (&once->io, once_cb_io); 5062 ev_init (&once->io, once_cb_io);
… …
4456} 5075}
4457 5076
4458/*****************************************************************************/ 5077/*****************************************************************************/
4459 5078
4460#if EV_WALK_ENABLE 5079#if EV_WALK_ENABLE
4461void ecb_cold 5080ecb_cold
5081void
4462ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5082ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4463{ 5083{
4464 int i, j; 5084 int i, j;
4465 ev_watcher_list *wl, *wn; 5085 ev_watcher_list *wl, *wn;
4466 5086
4467 if (types & (EV_IO | EV_EMBED)) 5087 if (types & (EV_IO | EV_EMBED))

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