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Comparing libev/ev.c (file contents):
Revision 1.437 by root, Tue May 29 21:03:22 2012 UTC vs.
Revision 1.490 by root, Thu Jun 20 22:44:59 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
… …
162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
… …
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#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
221 223
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 243#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 244# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 245#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 246# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 247#else
246# error "unable to find value for NSIG, please report" 248# 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 249#endif
251 250
252#ifndef EV_USE_FLOOR 251#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 252# define EV_USE_FLOOR 0
254#endif 253#endif
255 254
256#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 258# else
260# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
260# endif
261#endif
262
263#if !(_POSIX_TIMERS > 0)
264# ifndef EV_USE_MONOTONIC
265# define EV_USE_MONOTONIC 0
266# endif
267# ifndef EV_USE_REALTIME
268# define EV_USE_REALTIME 0
261# endif 269# endif
262#endif 270#endif
263 271
264#ifndef EV_USE_MONOTONIC 272#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 273# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 315
308#ifndef EV_USE_PORT 316#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 317# define EV_USE_PORT 0
310#endif 318#endif
311 319
320#ifndef EV_USE_LINUXAIO
321# define EV_USE_LINUXAIO 0
322#endif
323
312#ifndef EV_USE_INOTIFY 324#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 325# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 326# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 327# else
316# define EV_USE_INOTIFY 0 328# define EV_USE_INOTIFY 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 367# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 368#endif
357 369
358#ifndef EV_HEAP_CACHE_AT 370#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 371# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
372#endif
373
374#ifdef __ANDROID__
375/* supposedly, android doesn't typedef fd_mask */
376# undef EV_USE_SELECT
377# define EV_USE_SELECT 0
378/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
379# undef EV_USE_CLOCK_SYSCALL
380# define EV_USE_CLOCK_SYSCALL 0
381#endif
382
383/* aix's poll.h seems to cause lots of trouble */
384#ifdef _AIX
385/* AIX has a completely broken poll.h header */
386# undef EV_USE_POLL
387# define EV_USE_POLL 0
388#endif
389
390#if EV_USE_LINUXAIO
391# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
360#endif 392#endif
361 393
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 394/* 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. */ 395/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 396#if EV_USE_CLOCK_SYSCALL
… …
372# define EV_USE_CLOCK_SYSCALL 0 404# define EV_USE_CLOCK_SYSCALL 0
373# endif 405# endif
374#endif 406#endif
375 407
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 408/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377
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
383 409
384#ifndef CLOCK_MONOTONIC 410#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 411# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 412# define EV_USE_MONOTONIC 0
387#endif 413#endif
… …
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 501/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 502/* ECB.H BEGIN */
477/* 503/*
478 * libecb - http://software.schmorp.de/pkg/libecb 504 * libecb - http://software.schmorp.de/pkg/libecb
479 * 505 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 506 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 507 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 508 * All rights reserved.
483 * 509 *
484 * Redistribution and use in source and binary forms, with or without modifica- 510 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 511 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 525 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 526 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 527 * 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 528 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 529 * OF THE POSSIBILITY OF SUCH DAMAGE.
530 *
531 * Alternatively, the contents of this file may be used under the terms of
532 * the GNU General Public License ("GPL") version 2 or any later version,
533 * in which case the provisions of the GPL are applicable instead of
534 * the above. If you wish to allow the use of your version of this file
535 * only under the terms of the GPL and not to allow others to use your
536 * version of this file under the BSD license, indicate your decision
537 * by deleting the provisions above and replace them with the notice
538 * and other provisions required by the GPL. If you do not delete the
539 * provisions above, a recipient may use your version of this file under
540 * either the BSD or the GPL.
504 */ 541 */
505 542
506#ifndef ECB_H 543#ifndef ECB_H
507#define ECB_H 544#define ECB_H
508 545
509/* 16 bits major, 16 bits minor */ 546/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001 547#define ECB_VERSION 0x00010005
511 548
512#ifdef _WIN32 549#ifdef _WIN32
513 typedef signed char int8_t; 550 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 551 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 552 typedef signed short int16_t;
… …
530 #else 567 #else
531 #define ECB_PTRSIZE 4 568 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t; 569 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 570 typedef int32_t intptr_t;
534 #endif 571 #endif
535 typedef intptr_t ptrdiff_t;
536#else 572#else
537 #include <inttypes.h> 573 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU 574 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
539 #define ECB_PTRSIZE 8 575 #define ECB_PTRSIZE 8
540 #else 576 #else
541 #define ECB_PTRSIZE 4 577 #define ECB_PTRSIZE 4
578 #endif
579#endif
580
581#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
582#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
583
584/* work around x32 idiocy by defining proper macros */
585#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
586 #if _ILP32
587 #define ECB_AMD64_X32 1
588 #else
589 #define ECB_AMD64 1
542 #endif 590 #endif
543#endif 591#endif
544 592
545/* many compilers define _GNUC_ to some versions but then only implement 593/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions, 594 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers. 595 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so. 596 * or so.
549 * we try to detect these and simply assume they are not gcc - if they have 597 * 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. 598 * an issue with that they should have done it right in the first place.
551 */ 599 */
552#ifndef ECB_GCC_VERSION
553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 600#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
554 #define ECB_GCC_VERSION(major,minor) 0 601 #define ECB_GCC_VERSION(major,minor) 0
555 #else 602#else
556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 603 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
557 #endif 604#endif
558#endif
559 605
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 606#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
561#define ECB_C99 (__STDC_VERSION__ >= 199901L) 607
562#define ECB_C11 (__STDC_VERSION__ >= 201112L) 608#if __clang__ && defined __has_builtin
609 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
610#else
611 #define ECB_CLANG_BUILTIN(x) 0
612#endif
613
614#if __clang__ && defined __has_extension
615 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
616#else
617 #define ECB_CLANG_EXTENSION(x) 0
618#endif
619
563#define ECB_CPP (__cplusplus+0) 620#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP98 (__cplusplus >= 199711L)
565#define ECB_CPP11 (__cplusplus >= 201103L) 621#define ECB_CPP11 (__cplusplus >= 201103L)
622#define ECB_CPP14 (__cplusplus >= 201402L)
623#define ECB_CPP17 (__cplusplus >= 201703L)
624
625#if ECB_CPP
626 #define ECB_C 0
627 #define ECB_STDC_VERSION 0
628#else
629 #define ECB_C 1
630 #define ECB_STDC_VERSION __STDC_VERSION__
631#endif
632
633#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
634#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
635#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
636
637#if ECB_CPP
638 #define ECB_EXTERN_C extern "C"
639 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
640 #define ECB_EXTERN_C_END }
641#else
642 #define ECB_EXTERN_C extern
643 #define ECB_EXTERN_C_BEG
644 #define ECB_EXTERN_C_END
645#endif
566 646
567/*****************************************************************************/ 647/*****************************************************************************/
568 648
569/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 649/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
570/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 650/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
571 651
572#if ECB_NO_THREADS 652#if ECB_NO_THREADS
573# define ECB_NO_SMP 1 653 #define ECB_NO_SMP 1
574#endif 654#endif
575 655
576#if ECB_NO_SMP 656#if ECB_NO_SMP
577 #define ECB_MEMORY_FENCE do { } while (0) 657 #define ECB_MEMORY_FENCE do { } while (0)
658#endif
659
660/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
661#if __xlC__ && ECB_CPP
662 #include <builtins.h>
663#endif
664
665#if 1400 <= _MSC_VER
666 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
578#endif 667#endif
579 668
580#ifndef ECB_MEMORY_FENCE 669#ifndef ECB_MEMORY_FENCE
581 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 670 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
582 #if __i386 || __i386__ 671 #if __i386 || __i386__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
584 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 673 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
585 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 674 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
586 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 675 #elif ECB_GCC_AMD64
587 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 676 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
588 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 677 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
589 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 678 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
590 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 679 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
681 #elif defined __ARM_ARCH_2__ \
682 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
683 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
684 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
685 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
686 || defined __ARM_ARCH_5TEJ__
687 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
592 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 688 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
593 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 689 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
690 || defined __ARM_ARCH_6T2__
594 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 691 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
595 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 692 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
596 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 693 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
597 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
598 #elif __sparc || __sparc__ 695 #elif __aarch64__
696 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
697 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 699 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
601 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 700 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
602 #elif defined __s390__ || defined __s390x__ 701 #elif defined __s390__ || defined __s390x__
603 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 702 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
604 #elif defined __mips__ 703 #elif defined __mips__
704 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
705 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 706 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
606 #elif defined __alpha__ 707 #elif defined __alpha__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 708 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
608 #elif defined __hppa__ 709 #elif defined __hppa__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 710 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
610 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 711 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
611 #elif defined __ia64__ 712 #elif defined __ia64__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 713 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
714 #elif defined __m68k__
715 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
716 #elif defined __m88k__
717 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
718 #elif defined __sh__
719 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
613 #endif 720 #endif
614 #endif 721 #endif
615#endif 722#endif
616 723
617#ifndef ECB_MEMORY_FENCE 724#ifndef ECB_MEMORY_FENCE
618 #if ECB_GCC_VERSION(4,7) 725 #if ECB_GCC_VERSION(4,7)
619 /* see comment below about the C11 memory model. in short - avoid */ 726 /* see comment below (stdatomic.h) about the C11 memory model. */
620 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 727 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
621 #elif defined __clang && __has_feature (cxx_atomic) 728 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
622 /* see above */ 729 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
730
731 #elif ECB_CLANG_EXTENSION(c_atomic)
732 /* see comment below (stdatomic.h) about the C11 memory model. */
623 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 733 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
734 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
735 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
736
624 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 737 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
625 #define ECB_MEMORY_FENCE __sync_synchronize () 738 #define ECB_MEMORY_FENCE __sync_synchronize ()
626 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 739 #elif _MSC_VER >= 1500 /* VC++ 2008 */
627 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 740 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
741 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
742 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
743 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
744 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
628 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 745 #elif _MSC_VER >= 1400 /* VC++ 2005 */
629 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 746 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
630 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 747 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
631 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 748 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
632 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 749 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
646#ifndef ECB_MEMORY_FENCE 763#ifndef ECB_MEMORY_FENCE
647 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 764 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
648 /* we assume that these memory fences work on all variables/all memory accesses, */ 765 /* we assume that these memory fences work on all variables/all memory accesses, */
649 /* not just C11 atomics and atomic accesses */ 766 /* not just C11 atomics and atomic accesses */
650 #include <stdatomic.h> 767 #include <stdatomic.h>
651 /* unfortunately, the C11 memory model seems to be very limited, and unable to express */ 768 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
652 /* simple barrier semantics. That means we need to take out thor's hammer. */ 769 /* any fence other than seq_cst, which isn't very efficient for us. */
770 /* Why that is, we don't know - either the C11 memory model is quite useless */
771 /* for most usages, or gcc and clang have a bug */
772 /* I *currently* lean towards the latter, and inefficiently implement */
773 /* all three of ecb's fences as a seq_cst fence */
774 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
775 /* for all __atomic_thread_fence's except seq_cst */
653 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 776 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
654 #endif
655 #endif 777 #endif
656#endif 778#endif
657 779
658#ifndef ECB_MEMORY_FENCE 780#ifndef ECB_MEMORY_FENCE
659 #if !ECB_AVOID_PTHREADS 781 #if !ECB_AVOID_PTHREADS
… …
681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 803 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
682#endif 804#endif
683 805
684/*****************************************************************************/ 806/*****************************************************************************/
685 807
686#if __cplusplus 808#if ECB_CPP
687 #define ecb_inline static inline 809 #define ecb_inline static inline
688#elif ECB_GCC_VERSION(2,5) 810#elif ECB_GCC_VERSION(2,5)
689 #define ecb_inline static __inline__ 811 #define ecb_inline static __inline__
690#elif ECB_C99 812#elif ECB_C99
691 #define ecb_inline static inline 813 #define ecb_inline static inline
… …
705 827
706#define ECB_CONCAT_(a, b) a ## b 828#define ECB_CONCAT_(a, b) a ## b
707#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 829#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
708#define ECB_STRINGIFY_(a) # a 830#define ECB_STRINGIFY_(a) # a
709#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 831#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
832#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
710 833
711#define ecb_function_ ecb_inline 834#define ecb_function_ ecb_inline
712 835
713#if ECB_GCC_VERSION(3,1) 836#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
714 #define ecb_attribute(attrlist) __attribute__(attrlist) 837 #define ecb_attribute(attrlist) __attribute__ (attrlist)
838#else
839 #define ecb_attribute(attrlist)
840#endif
841
842#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
715 #define ecb_is_constant(expr) __builtin_constant_p (expr) 843 #define ecb_is_constant(expr) __builtin_constant_p (expr)
844#else
845 /* possible C11 impl for integral types
846 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
847 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
848
849 #define ecb_is_constant(expr) 0
850#endif
851
852#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
716 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 853 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
854#else
855 #define ecb_expect(expr,value) (expr)
856#endif
857
858#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
717 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 859 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
718#else 860#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) 861 #define ecb_prefetch(addr,rw,locality)
723#endif 862#endif
724 863
725/* no emulation for ecb_decltype */ 864/* no emulation for ecb_decltype */
726#if ECB_GCC_VERSION(4,5) 865#if ECB_CPP11
866 // older implementations might have problems with decltype(x)::type, work around it
867 template<class T> struct ecb_decltype_t { typedef T type; };
727 #define ecb_decltype(x) __decltype(x) 868 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
728#elif ECB_GCC_VERSION(3,0) 869#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
729 #define ecb_decltype(x) __typeof(x) 870 #define ecb_decltype(x) __typeof__ (x)
730#endif 871#endif
731 872
873#if _MSC_VER >= 1300
874 #define ecb_deprecated __declspec (deprecated)
875#else
876 #define ecb_deprecated ecb_attribute ((__deprecated__))
877#endif
878
879#if _MSC_VER >= 1500
880 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
881#elif ECB_GCC_VERSION(4,5)
882 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
883#else
884 #define ecb_deprecated_message(msg) ecb_deprecated
885#endif
886
887#if _MSC_VER >= 1400
888 #define ecb_noinline __declspec (noinline)
889#else
732#define ecb_noinline ecb_attribute ((__noinline__)) 890 #define ecb_noinline ecb_attribute ((__noinline__))
891#endif
892
733#define ecb_unused ecb_attribute ((__unused__)) 893#define ecb_unused ecb_attribute ((__unused__))
734#define ecb_const ecb_attribute ((__const__)) 894#define ecb_const ecb_attribute ((__const__))
735#define ecb_pure ecb_attribute ((__pure__)) 895#define ecb_pure ecb_attribute ((__pure__))
736 896
737#if ECB_C11 897#if ECB_C11 || __IBMC_NORETURN
898 /* 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 899 #define ecb_noreturn _Noreturn
900#elif ECB_CPP11
901 #define ecb_noreturn [[noreturn]]
902#elif _MSC_VER >= 1200
903 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
904 #define ecb_noreturn __declspec (noreturn)
739#else 905#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__)) 906 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif 907#endif
742 908
743#if ECB_GCC_VERSION(4,3) 909#if ECB_GCC_VERSION(4,3)
… …
758/* for compatibility to the rest of the world */ 924/* for compatibility to the rest of the world */
759#define ecb_likely(expr) ecb_expect_true (expr) 925#define ecb_likely(expr) ecb_expect_true (expr)
760#define ecb_unlikely(expr) ecb_expect_false (expr) 926#define ecb_unlikely(expr) ecb_expect_false (expr)
761 927
762/* count trailing zero bits and count # of one bits */ 928/* count trailing zero bits and count # of one bits */
763#if ECB_GCC_VERSION(3,4) 929#if ECB_GCC_VERSION(3,4) \
930 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
931 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
932 && ECB_CLANG_BUILTIN(__builtin_popcount))
764 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 933 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
765 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 934 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
766 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 935 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
767 #define ecb_ctz32(x) __builtin_ctz (x) 936 #define ecb_ctz32(x) __builtin_ctz (x)
768 #define ecb_ctz64(x) __builtin_ctzll (x) 937 #define ecb_ctz64(x) __builtin_ctzll (x)
769 #define ecb_popcount32(x) __builtin_popcount (x) 938 #define ecb_popcount32(x) __builtin_popcount (x)
770 /* no popcountll */ 939 /* no popcountll */
771#else 940#else
772 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 941 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
773 ecb_function_ int 942 ecb_function_ ecb_const int
774 ecb_ctz32 (uint32_t x) 943 ecb_ctz32 (uint32_t x)
775 { 944 {
945#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
946 unsigned long r;
947 _BitScanForward (&r, x);
948 return (int)r;
949#else
776 int r = 0; 950 int r = 0;
777 951
778 x &= ~x + 1; /* this isolates the lowest bit */ 952 x &= ~x + 1; /* this isolates the lowest bit */
779 953
780#if ECB_branchless_on_i386 954#if ECB_branchless_on_i386
… …
790 if (x & 0xff00ff00) r += 8; 964 if (x & 0xff00ff00) r += 8;
791 if (x & 0xffff0000) r += 16; 965 if (x & 0xffff0000) r += 16;
792#endif 966#endif
793 967
794 return r; 968 return r;
969#endif
795 } 970 }
796 971
797 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 972 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
798 ecb_function_ int 973 ecb_function_ ecb_const int
799 ecb_ctz64 (uint64_t x) 974 ecb_ctz64 (uint64_t x)
800 { 975 {
976#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
977 unsigned long r;
978 _BitScanForward64 (&r, x);
979 return (int)r;
980#else
801 int shift = x & 0xffffffffU ? 0 : 32; 981 int shift = x & 0xffffffff ? 0 : 32;
802 return ecb_ctz32 (x >> shift) + shift; 982 return ecb_ctz32 (x >> shift) + shift;
983#endif
803 } 984 }
804 985
805 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 986 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
806 ecb_function_ int 987 ecb_function_ ecb_const int
807 ecb_popcount32 (uint32_t x) 988 ecb_popcount32 (uint32_t x)
808 { 989 {
809 x -= (x >> 1) & 0x55555555; 990 x -= (x >> 1) & 0x55555555;
810 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 991 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
811 x = ((x >> 4) + x) & 0x0f0f0f0f; 992 x = ((x >> 4) + x) & 0x0f0f0f0f;
812 x *= 0x01010101; 993 x *= 0x01010101;
813 994
814 return x >> 24; 995 return x >> 24;
815 } 996 }
816 997
817 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 998 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
818 ecb_function_ int ecb_ld32 (uint32_t x) 999 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
819 { 1000 {
1001#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1002 unsigned long r;
1003 _BitScanReverse (&r, x);
1004 return (int)r;
1005#else
820 int r = 0; 1006 int r = 0;
821 1007
822 if (x >> 16) { x >>= 16; r += 16; } 1008 if (x >> 16) { x >>= 16; r += 16; }
823 if (x >> 8) { x >>= 8; r += 8; } 1009 if (x >> 8) { x >>= 8; r += 8; }
824 if (x >> 4) { x >>= 4; r += 4; } 1010 if (x >> 4) { x >>= 4; r += 4; }
825 if (x >> 2) { x >>= 2; r += 2; } 1011 if (x >> 2) { x >>= 2; r += 2; }
826 if (x >> 1) { r += 1; } 1012 if (x >> 1) { r += 1; }
827 1013
828 return r; 1014 return r;
1015#endif
829 } 1016 }
830 1017
831 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1018 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
832 ecb_function_ int ecb_ld64 (uint64_t x) 1019 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
833 { 1020 {
1021#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1022 unsigned long r;
1023 _BitScanReverse64 (&r, x);
1024 return (int)r;
1025#else
834 int r = 0; 1026 int r = 0;
835 1027
836 if (x >> 32) { x >>= 32; r += 32; } 1028 if (x >> 32) { x >>= 32; r += 32; }
837 1029
838 return r + ecb_ld32 (x); 1030 return r + ecb_ld32 (x);
1031#endif
839 } 1032 }
840#endif 1033#endif
841 1034
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1035ecb_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)); } 1036ecb_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; 1037ecb_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)); } 1038ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846 1039
847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1040ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1041ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
849{ 1042{
850 return ( (x * 0x0802U & 0x22110U) 1043 return ( (x * 0x0802U & 0x22110U)
851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1044 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852} 1045}
853 1046
854ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1047ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
855ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1048ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
856{ 1049{
857 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1050 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
858 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1051 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
859 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1052 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
860 x = ( x >> 8 ) | ( x << 8); 1053 x = ( x >> 8 ) | ( x << 8);
861 1054
862 return x; 1055 return x;
863} 1056}
864 1057
865ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1058ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
866ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1059ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
867{ 1060{
868 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1061 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
869 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1062 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
870 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1063 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
871 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1064 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
874 return x; 1067 return x;
875} 1068}
876 1069
877/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1070/* popcount64 is only available on 64 bit cpus as gcc builtin */
878/* so for this version we are lazy */ 1071/* so for this version we are lazy */
879ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1072ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
880ecb_function_ int 1073ecb_function_ ecb_const int
881ecb_popcount64 (uint64_t x) 1074ecb_popcount64 (uint64_t x)
882{ 1075{
883 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1076 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
884} 1077}
885 1078
886ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1079ecb_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; 1080ecb_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; 1081ecb_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; 1082ecb_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; 1083ecb_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; 1084ecb_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; 1085ecb_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; 1086ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
894 1087
895ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1088ecb_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); } 1089ecb_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); } 1090ecb_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); } 1091ecb_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); } 1092ecb_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); } 1093ecb_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); } 1094ecb_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); } 1095ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
903 1096
904#if ECB_GCC_VERSION(4,3) 1097#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1098 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1099 #define ecb_bswap16(x) __builtin_bswap16 (x)
1100 #else
905 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1101 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1102 #endif
906 #define ecb_bswap32(x) __builtin_bswap32 (x) 1103 #define ecb_bswap32(x) __builtin_bswap32 (x)
907 #define ecb_bswap64(x) __builtin_bswap64 (x) 1104 #define ecb_bswap64(x) __builtin_bswap64 (x)
1105#elif _MSC_VER
1106 #include <stdlib.h>
1107 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1108 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1109 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
908#else 1110#else
909 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1111 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
910 ecb_function_ uint16_t 1112 ecb_function_ ecb_const uint16_t
911 ecb_bswap16 (uint16_t x) 1113 ecb_bswap16 (uint16_t x)
912 { 1114 {
913 return ecb_rotl16 (x, 8); 1115 return ecb_rotl16 (x, 8);
914 } 1116 }
915 1117
916 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1118 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
917 ecb_function_ uint32_t 1119 ecb_function_ ecb_const uint32_t
918 ecb_bswap32 (uint32_t x) 1120 ecb_bswap32 (uint32_t x)
919 { 1121 {
920 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1122 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
921 } 1123 }
922 1124
923 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1125 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
924 ecb_function_ uint64_t 1126 ecb_function_ ecb_const uint64_t
925 ecb_bswap64 (uint64_t x) 1127 ecb_bswap64 (uint64_t x)
926 { 1128 {
927 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1129 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
928 } 1130 }
929#endif 1131#endif
930 1132
931#if ECB_GCC_VERSION(4,5) 1133#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
932 #define ecb_unreachable() __builtin_unreachable () 1134 #define ecb_unreachable() __builtin_unreachable ()
933#else 1135#else
934 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1136 /* this seems to work fine, but gcc always emits a warning for it :/ */
935 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1137 ecb_inline ecb_noreturn void ecb_unreachable (void);
936 ecb_inline void ecb_unreachable (void) { } 1138 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
937#endif 1139#endif
938 1140
939/* try to tell the compiler that some condition is definitely true */ 1141/* try to tell the compiler that some condition is definitely true */
940#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1142#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
941 1143
942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1144ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
943ecb_inline unsigned char 1145ecb_inline ecb_const uint32_t
944ecb_byteorder_helper (void) 1146ecb_byteorder_helper (void)
945{ 1147{
946 const uint32_t u = 0x11223344; 1148 /* the union code still generates code under pressure in gcc, */
947 return *(unsigned char *)&u; 1149 /* but less than using pointers, and always seems to */
1150 /* successfully return a constant. */
1151 /* the reason why we have this horrible preprocessor mess */
1152 /* is to avoid it in all cases, at least on common architectures */
1153 /* or when using a recent enough gcc version (>= 4.6) */
1154#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1155 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1156 #define ECB_LITTLE_ENDIAN 1
1157 return 0x44332211;
1158#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1159 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1160 #define ECB_BIG_ENDIAN 1
1161 return 0x11223344;
1162#else
1163 union
1164 {
1165 uint8_t c[4];
1166 uint32_t u;
1167 } u = { 0x11, 0x22, 0x33, 0x44 };
1168 return u.u;
1169#endif
948} 1170}
949 1171
950ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1172ecb_inline ecb_const ecb_bool ecb_big_endian (void);
951ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1173ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
952ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1174ecb_inline ecb_const ecb_bool ecb_little_endian (void);
953ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1175ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
954 1176
955#if ECB_GCC_VERSION(3,0) || ECB_C99 1177#if ECB_GCC_VERSION(3,0) || ECB_C99
956 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1178 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
957#else 1179#else
958 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1180 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
959#endif 1181#endif
960 1182
961#if __cplusplus 1183#if ECB_CPP
962 template<typename T> 1184 template<typename T>
963 static inline T ecb_div_rd (T val, T div) 1185 static inline T ecb_div_rd (T val, T div)
964 { 1186 {
965 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1187 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
966 } 1188 }
… …
983 } 1205 }
984#else 1206#else
985 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1207 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
986#endif 1208#endif
987 1209
1210ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1211ecb_function_ ecb_const uint32_t
1212ecb_binary16_to_binary32 (uint32_t x)
1213{
1214 unsigned int s = (x & 0x8000) << (31 - 15);
1215 int e = (x >> 10) & 0x001f;
1216 unsigned int m = x & 0x03ff;
1217
1218 if (ecb_expect_false (e == 31))
1219 /* infinity or NaN */
1220 e = 255 - (127 - 15);
1221 else if (ecb_expect_false (!e))
1222 {
1223 if (ecb_expect_true (!m))
1224 /* zero, handled by code below by forcing e to 0 */
1225 e = 0 - (127 - 15);
1226 else
1227 {
1228 /* subnormal, renormalise */
1229 unsigned int s = 10 - ecb_ld32 (m);
1230
1231 m = (m << s) & 0x3ff; /* mask implicit bit */
1232 e -= s - 1;
1233 }
1234 }
1235
1236 /* e and m now are normalised, or zero, (or inf or nan) */
1237 e += 127 - 15;
1238
1239 return s | (e << 23) | (m << (23 - 10));
1240}
1241
1242ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1243ecb_function_ ecb_const uint16_t
1244ecb_binary32_to_binary16 (uint32_t x)
1245{
1246 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1247 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1248 unsigned int m = x & 0x007fffff;
1249
1250 x &= 0x7fffffff;
1251
1252 /* if it's within range of binary16 normals, use fast path */
1253 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1254 {
1255 /* mantissa round-to-even */
1256 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1257
1258 /* handle overflow */
1259 if (ecb_expect_false (m >= 0x00800000))
1260 {
1261 m >>= 1;
1262 e += 1;
1263 }
1264
1265 return s | (e << 10) | (m >> (23 - 10));
1266 }
1267
1268 /* handle large numbers and infinity */
1269 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1270 return s | 0x7c00;
1271
1272 /* handle zero, subnormals and small numbers */
1273 if (ecb_expect_true (x < 0x38800000))
1274 {
1275 /* zero */
1276 if (ecb_expect_true (!x))
1277 return s;
1278
1279 /* handle subnormals */
1280
1281 /* too small, will be zero */
1282 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1283 return s;
1284
1285 m |= 0x00800000; /* make implicit bit explicit */
1286
1287 /* very tricky - we need to round to the nearest e (+10) bit value */
1288 {
1289 unsigned int bits = 14 - e;
1290 unsigned int half = (1 << (bits - 1)) - 1;
1291 unsigned int even = (m >> bits) & 1;
1292
1293 /* if this overflows, we will end up with a normalised number */
1294 m = (m + half + even) >> bits;
1295 }
1296
1297 return s | m;
1298 }
1299
1300 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1301 m >>= 13;
1302
1303 return s | 0x7c00 | m | !m;
1304}
1305
1306/*******************************************************************************/
1307/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1308
1309/* basically, everything uses "ieee pure-endian" floating point numbers */
1310/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1311#if 0 \
1312 || __i386 || __i386__ \
1313 || ECB_GCC_AMD64 \
1314 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1315 || defined __s390__ || defined __s390x__ \
1316 || defined __mips__ \
1317 || defined __alpha__ \
1318 || defined __hppa__ \
1319 || defined __ia64__ \
1320 || defined __m68k__ \
1321 || defined __m88k__ \
1322 || defined __sh__ \
1323 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1324 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1325 || defined __aarch64__
1326 #define ECB_STDFP 1
1327 #include <string.h> /* for memcpy */
1328#else
1329 #define ECB_STDFP 0
1330#endif
1331
1332#ifndef ECB_NO_LIBM
1333
1334 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1335
1336 /* only the oldest of old doesn't have this one. solaris. */
1337 #ifdef INFINITY
1338 #define ECB_INFINITY INFINITY
1339 #else
1340 #define ECB_INFINITY HUGE_VAL
1341 #endif
1342
1343 #ifdef NAN
1344 #define ECB_NAN NAN
1345 #else
1346 #define ECB_NAN ECB_INFINITY
1347 #endif
1348
1349 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1350 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1351 #define ecb_frexpf(x,e) frexpf ((x), (e))
1352 #else
1353 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1354 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1355 #endif
1356
1357 /* convert a float to ieee single/binary32 */
1358 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1359 ecb_function_ ecb_const uint32_t
1360 ecb_float_to_binary32 (float x)
1361 {
1362 uint32_t r;
1363
1364 #if ECB_STDFP
1365 memcpy (&r, &x, 4);
1366 #else
1367 /* slow emulation, works for anything but -0 */
1368 uint32_t m;
1369 int e;
1370
1371 if (x == 0e0f ) return 0x00000000U;
1372 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1373 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1374 if (x != x ) return 0x7fbfffffU;
1375
1376 m = ecb_frexpf (x, &e) * 0x1000000U;
1377
1378 r = m & 0x80000000U;
1379
1380 if (r)
1381 m = -m;
1382
1383 if (e <= -126)
1384 {
1385 m &= 0xffffffU;
1386 m >>= (-125 - e);
1387 e = -126;
1388 }
1389
1390 r |= (e + 126) << 23;
1391 r |= m & 0x7fffffU;
1392 #endif
1393
1394 return r;
1395 }
1396
1397 /* converts an ieee single/binary32 to a float */
1398 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1399 ecb_function_ ecb_const float
1400 ecb_binary32_to_float (uint32_t x)
1401 {
1402 float r;
1403
1404 #if ECB_STDFP
1405 memcpy (&r, &x, 4);
1406 #else
1407 /* emulation, only works for normals and subnormals and +0 */
1408 int neg = x >> 31;
1409 int e = (x >> 23) & 0xffU;
1410
1411 x &= 0x7fffffU;
1412
1413 if (e)
1414 x |= 0x800000U;
1415 else
1416 e = 1;
1417
1418 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1419 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1420
1421 r = neg ? -r : r;
1422 #endif
1423
1424 return r;
1425 }
1426
1427 /* convert a double to ieee double/binary64 */
1428 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1429 ecb_function_ ecb_const uint64_t
1430 ecb_double_to_binary64 (double x)
1431 {
1432 uint64_t r;
1433
1434 #if ECB_STDFP
1435 memcpy (&r, &x, 8);
1436 #else
1437 /* slow emulation, works for anything but -0 */
1438 uint64_t m;
1439 int e;
1440
1441 if (x == 0e0 ) return 0x0000000000000000U;
1442 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1443 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1444 if (x != x ) return 0X7ff7ffffffffffffU;
1445
1446 m = frexp (x, &e) * 0x20000000000000U;
1447
1448 r = m & 0x8000000000000000;;
1449
1450 if (r)
1451 m = -m;
1452
1453 if (e <= -1022)
1454 {
1455 m &= 0x1fffffffffffffU;
1456 m >>= (-1021 - e);
1457 e = -1022;
1458 }
1459
1460 r |= ((uint64_t)(e + 1022)) << 52;
1461 r |= m & 0xfffffffffffffU;
1462 #endif
1463
1464 return r;
1465 }
1466
1467 /* converts an ieee double/binary64 to a double */
1468 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1469 ecb_function_ ecb_const double
1470 ecb_binary64_to_double (uint64_t x)
1471 {
1472 double r;
1473
1474 #if ECB_STDFP
1475 memcpy (&r, &x, 8);
1476 #else
1477 /* emulation, only works for normals and subnormals and +0 */
1478 int neg = x >> 63;
1479 int e = (x >> 52) & 0x7ffU;
1480
1481 x &= 0xfffffffffffffU;
1482
1483 if (e)
1484 x |= 0x10000000000000U;
1485 else
1486 e = 1;
1487
1488 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1489 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1490
1491 r = neg ? -r : r;
1492 #endif
1493
1494 return r;
1495 }
1496
1497 /* convert a float to ieee half/binary16 */
1498 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1499 ecb_function_ ecb_const uint16_t
1500 ecb_float_to_binary16 (float x)
1501 {
1502 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1503 }
1504
1505 /* convert an ieee half/binary16 to float */
1506 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1507 ecb_function_ ecb_const float
1508 ecb_binary16_to_float (uint16_t x)
1509 {
1510 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1511 }
1512
1513#endif
1514
988#endif 1515#endif
989 1516
990/* ECB.H END */ 1517/* ECB.H END */
991 1518
992#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1519#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1013#define inline_size ecb_inline 1540#define inline_size ecb_inline
1014 1541
1015#if EV_FEATURE_CODE 1542#if EV_FEATURE_CODE
1016# define inline_speed ecb_inline 1543# define inline_speed ecb_inline
1017#else 1544#else
1018# define inline_speed static noinline 1545# define inline_speed noinline static
1019#endif 1546#endif
1020 1547
1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1548#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1022 1549
1023#if EV_MINPRI == EV_MAXPRI 1550#if EV_MINPRI == EV_MAXPRI
1024# define ABSPRI(w) (((W)w), 0) 1551# define ABSPRI(w) (((W)w), 0)
1025#else 1552#else
1026# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1553# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1027#endif 1554#endif
1028 1555
1029#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1556#define EMPTY /* required for microsofts broken pseudo-c compiler */
1030#define EMPTY2(a,b) /* used to suppress some warnings */
1031 1557
1032typedef ev_watcher *W; 1558typedef ev_watcher *W;
1033typedef ev_watcher_list *WL; 1559typedef ev_watcher_list *WL;
1034typedef ev_watcher_time *WT; 1560typedef ev_watcher_time *WT;
1035 1561
… …
1070#else 1596#else
1071 1597
1072#include <float.h> 1598#include <float.h>
1073 1599
1074/* a floor() replacement function, should be independent of ev_tstamp type */ 1600/* a floor() replacement function, should be independent of ev_tstamp type */
1601noinline
1075static ev_tstamp noinline 1602static ev_tstamp
1076ev_floor (ev_tstamp v) 1603ev_floor (ev_tstamp v)
1077{ 1604{
1078 /* the choice of shift factor is not terribly important */ 1605 /* the choice of shift factor is not terribly important */
1079#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1606#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1080 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1607 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1112 1639
1113#ifdef __linux 1640#ifdef __linux
1114# include <sys/utsname.h> 1641# include <sys/utsname.h>
1115#endif 1642#endif
1116 1643
1117static unsigned int noinline ecb_cold 1644noinline ecb_cold
1645static unsigned int
1118ev_linux_version (void) 1646ev_linux_version (void)
1119{ 1647{
1120#ifdef __linux 1648#ifdef __linux
1121 unsigned int v = 0; 1649 unsigned int v = 0;
1122 struct utsname buf; 1650 struct utsname buf;
… …
1151} 1679}
1152 1680
1153/*****************************************************************************/ 1681/*****************************************************************************/
1154 1682
1155#if EV_AVOID_STDIO 1683#if EV_AVOID_STDIO
1156static void noinline ecb_cold 1684noinline ecb_cold
1685static void
1157ev_printerr (const char *msg) 1686ev_printerr (const char *msg)
1158{ 1687{
1159 write (STDERR_FILENO, msg, strlen (msg)); 1688 write (STDERR_FILENO, msg, strlen (msg));
1160} 1689}
1161#endif 1690#endif
1162 1691
1163static void (*syserr_cb)(const char *msg) EV_THROW; 1692static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1164 1693
1165void ecb_cold 1694ecb_cold
1695void
1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1696ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1167{ 1697{
1168 syserr_cb = cb; 1698 syserr_cb = cb;
1169} 1699}
1170 1700
1171static void noinline ecb_cold 1701noinline ecb_cold
1702static void
1172ev_syserr (const char *msg) 1703ev_syserr (const char *msg)
1173{ 1704{
1174 if (!msg) 1705 if (!msg)
1175 msg = "(libev) system error"; 1706 msg = "(libev) system error";
1176 1707
… …
1189 abort (); 1720 abort ();
1190 } 1721 }
1191} 1722}
1192 1723
1193static void * 1724static void *
1194ev_realloc_emul (void *ptr, long size) EV_THROW 1725ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1195{ 1726{
1196#if __GLIBC__
1197 return realloc (ptr, size);
1198#else
1199 /* some systems, notably openbsd and darwin, fail to properly 1727 /* some systems, notably openbsd and darwin, fail to properly
1200 * implement realloc (x, 0) (as required by both ansi c-89 and 1728 * implement realloc (x, 0) (as required by both ansi c-89 and
1201 * the single unix specification, so work around them here. 1729 * the single unix specification, so work around them here.
1730 * recently, also (at least) fedora and debian started breaking it,
1731 * despite documenting it otherwise.
1202 */ 1732 */
1203 1733
1204 if (size) 1734 if (size)
1205 return realloc (ptr, size); 1735 return realloc (ptr, size);
1206 1736
1207 free (ptr); 1737 free (ptr);
1208 return 0; 1738 return 0;
1209#endif
1210} 1739}
1211 1740
1212static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1741static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1213 1742
1214void ecb_cold 1743ecb_cold
1744void
1215ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1745ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1216{ 1746{
1217 alloc = cb; 1747 alloc = cb;
1218} 1748}
1219 1749
1220inline_speed void * 1750inline_speed void *
… …
1247typedef struct 1777typedef struct
1248{ 1778{
1249 WL head; 1779 WL head;
1250 unsigned char events; /* the events watched for */ 1780 unsigned char events; /* the events watched for */
1251 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1781 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 */ 1782 unsigned char emask; /* some backends store the actual kernel mask in here */
1253 unsigned char unused; 1783 unsigned char unused;
1254#if EV_USE_EPOLL 1784#if EV_USE_EPOLL
1255 unsigned int egen; /* generation counter to counter epoll bugs */ 1785 unsigned int egen; /* generation counter to counter epoll bugs */
1256#endif 1786#endif
1257#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1787#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1337 1867
1338/*****************************************************************************/ 1868/*****************************************************************************/
1339 1869
1340#ifndef EV_HAVE_EV_TIME 1870#ifndef EV_HAVE_EV_TIME
1341ev_tstamp 1871ev_tstamp
1342ev_time (void) EV_THROW 1872ev_time (void) EV_NOEXCEPT
1343{ 1873{
1344#if EV_USE_REALTIME 1874#if EV_USE_REALTIME
1345 if (expect_true (have_realtime)) 1875 if (expect_true (have_realtime))
1346 { 1876 {
1347 struct timespec ts; 1877 struct timespec ts;
… …
1371 return ev_time (); 1901 return ev_time ();
1372} 1902}
1373 1903
1374#if EV_MULTIPLICITY 1904#if EV_MULTIPLICITY
1375ev_tstamp 1905ev_tstamp
1376ev_now (EV_P) EV_THROW 1906ev_now (EV_P) EV_NOEXCEPT
1377{ 1907{
1378 return ev_rt_now; 1908 return ev_rt_now;
1379} 1909}
1380#endif 1910#endif
1381 1911
1382void 1912void
1383ev_sleep (ev_tstamp delay) EV_THROW 1913ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1384{ 1914{
1385 if (delay > 0.) 1915 if (delay > 0.)
1386 { 1916 {
1387#if EV_USE_NANOSLEEP 1917#if EV_USE_NANOSLEEP
1388 struct timespec ts; 1918 struct timespec ts;
1389 1919
1390 EV_TS_SET (ts, delay); 1920 EV_TS_SET (ts, delay);
1391 nanosleep (&ts, 0); 1921 nanosleep (&ts, 0);
1392#elif defined _WIN32 1922#elif defined _WIN32
1923 /* maybe this should round up, as ms is very low resolution */
1924 /* compared to select (µs) or nanosleep (ns) */
1393 Sleep ((unsigned long)(delay * 1e3)); 1925 Sleep ((unsigned long)(delay * 1e3));
1394#else 1926#else
1395 struct timeval tv; 1927 struct timeval tv;
1396 1928
1397 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1929 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1428 } 1960 }
1429 1961
1430 return ncur; 1962 return ncur;
1431} 1963}
1432 1964
1433static void * noinline ecb_cold 1965noinline ecb_cold
1966static void *
1434array_realloc (int elem, void *base, int *cur, int cnt) 1967array_realloc (int elem, void *base, int *cur, int cnt)
1435{ 1968{
1436 *cur = array_nextsize (elem, *cur, cnt); 1969 *cur = array_nextsize (elem, *cur, cnt);
1437 return ev_realloc (base, elem * *cur); 1970 return ev_realloc (base, elem * *cur);
1438} 1971}
1439 1972
1973#define array_needsize_noinit(base,count)
1974
1440#define array_init_zero(base,count) \ 1975#define array_needsize_zerofill(base,count) \
1441 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1976 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1442 1977
1443#define array_needsize(type,base,cur,cnt,init) \ 1978#define array_needsize(type,base,cur,cnt,init) \
1444 if (expect_false ((cnt) > (cur))) \ 1979 if (expect_false ((cnt) > (cur))) \
1445 { \ 1980 { \
1446 int ecb_unused ocur_ = (cur); \ 1981 ecb_unused int ocur_ = (cur); \
1447 (base) = (type *)array_realloc \ 1982 (base) = (type *)array_realloc \
1448 (sizeof (type), (base), &(cur), (cnt)); \ 1983 (sizeof (type), (base), &(cur), (cnt)); \
1449 init ((base) + (ocur_), (cur) - ocur_); \ 1984 init ((base) + (ocur_), (cur) - ocur_); \
1450 } 1985 }
1451 1986
… …
1463 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1998 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1464 1999
1465/*****************************************************************************/ 2000/*****************************************************************************/
1466 2001
1467/* dummy callback for pending events */ 2002/* dummy callback for pending events */
1468static void noinline 2003noinline
2004static void
1469pendingcb (EV_P_ ev_prepare *w, int revents) 2005pendingcb (EV_P_ ev_prepare *w, int revents)
1470{ 2006{
1471} 2007}
1472 2008
1473void noinline 2009noinline
2010void
1474ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2011ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1475{ 2012{
1476 W w_ = (W)w; 2013 W w_ = (W)w;
1477 int pri = ABSPRI (w_); 2014 int pri = ABSPRI (w_);
1478 2015
1479 if (expect_false (w_->pending)) 2016 if (expect_false (w_->pending))
1480 pendings [pri][w_->pending - 1].events |= revents; 2017 pendings [pri][w_->pending - 1].events |= revents;
1481 else 2018 else
1482 { 2019 {
1483 w_->pending = ++pendingcnt [pri]; 2020 w_->pending = ++pendingcnt [pri];
1484 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2021 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1485 pendings [pri][w_->pending - 1].w = w_; 2022 pendings [pri][w_->pending - 1].w = w_;
1486 pendings [pri][w_->pending - 1].events = revents; 2023 pendings [pri][w_->pending - 1].events = revents;
1487 } 2024 }
1488 2025
1489 pendingpri = NUMPRI - 1; 2026 pendingpri = NUMPRI - 1;
1490} 2027}
1491 2028
1492inline_speed void 2029inline_speed void
1493feed_reverse (EV_P_ W w) 2030feed_reverse (EV_P_ W w)
1494{ 2031{
1495 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2032 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1496 rfeeds [rfeedcnt++] = w; 2033 rfeeds [rfeedcnt++] = w;
1497} 2034}
1498 2035
1499inline_size void 2036inline_size void
1500feed_reverse_done (EV_P_ int revents) 2037feed_reverse_done (EV_P_ int revents)
… …
1540 if (expect_true (!anfd->reify)) 2077 if (expect_true (!anfd->reify))
1541 fd_event_nocheck (EV_A_ fd, revents); 2078 fd_event_nocheck (EV_A_ fd, revents);
1542} 2079}
1543 2080
1544void 2081void
1545ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2082ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1546{ 2083{
1547 if (fd >= 0 && fd < anfdmax) 2084 if (fd >= 0 && fd < anfdmax)
1548 fd_event_nocheck (EV_A_ fd, revents); 2085 fd_event_nocheck (EV_A_ fd, revents);
1549} 2086}
1550 2087
… …
1608 2145
1609 fdchangecnt = 0; 2146 fdchangecnt = 0;
1610} 2147}
1611 2148
1612/* something about the given fd changed */ 2149/* something about the given fd changed */
1613inline_size void 2150inline_size
2151void
1614fd_change (EV_P_ int fd, int flags) 2152fd_change (EV_P_ int fd, int flags)
1615{ 2153{
1616 unsigned char reify = anfds [fd].reify; 2154 unsigned char reify = anfds [fd].reify;
1617 anfds [fd].reify |= flags; 2155 anfds [fd].reify |= flags;
1618 2156
1619 if (expect_true (!reify)) 2157 if (expect_true (!reify))
1620 { 2158 {
1621 ++fdchangecnt; 2159 ++fdchangecnt;
1622 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2160 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1623 fdchanges [fdchangecnt - 1] = fd; 2161 fdchanges [fdchangecnt - 1] = fd;
1624 } 2162 }
1625} 2163}
1626 2164
1627/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2165/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1628inline_speed void ecb_cold 2166inline_speed ecb_cold void
1629fd_kill (EV_P_ int fd) 2167fd_kill (EV_P_ int fd)
1630{ 2168{
1631 ev_io *w; 2169 ev_io *w;
1632 2170
1633 while ((w = (ev_io *)anfds [fd].head)) 2171 while ((w = (ev_io *)anfds [fd].head))
… …
1636 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2174 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1637 } 2175 }
1638} 2176}
1639 2177
1640/* check whether the given fd is actually valid, for error recovery */ 2178/* check whether the given fd is actually valid, for error recovery */
1641inline_size int ecb_cold 2179inline_size ecb_cold int
1642fd_valid (int fd) 2180fd_valid (int fd)
1643{ 2181{
1644#ifdef _WIN32 2182#ifdef _WIN32
1645 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2183 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1646#else 2184#else
1647 return fcntl (fd, F_GETFD) != -1; 2185 return fcntl (fd, F_GETFD) != -1;
1648#endif 2186#endif
1649} 2187}
1650 2188
1651/* called on EBADF to verify fds */ 2189/* called on EBADF to verify fds */
1652static void noinline ecb_cold 2190noinline ecb_cold
2191static void
1653fd_ebadf (EV_P) 2192fd_ebadf (EV_P)
1654{ 2193{
1655 int fd; 2194 int fd;
1656 2195
1657 for (fd = 0; fd < anfdmax; ++fd) 2196 for (fd = 0; fd < anfdmax; ++fd)
… …
1659 if (!fd_valid (fd) && errno == EBADF) 2198 if (!fd_valid (fd) && errno == EBADF)
1660 fd_kill (EV_A_ fd); 2199 fd_kill (EV_A_ fd);
1661} 2200}
1662 2201
1663/* called on ENOMEM in select/poll to kill some fds and retry */ 2202/* called on ENOMEM in select/poll to kill some fds and retry */
1664static void noinline ecb_cold 2203noinline ecb_cold
2204static void
1665fd_enomem (EV_P) 2205fd_enomem (EV_P)
1666{ 2206{
1667 int fd; 2207 int fd;
1668 2208
1669 for (fd = anfdmax; fd--; ) 2209 for (fd = anfdmax; fd--; )
… …
1673 break; 2213 break;
1674 } 2214 }
1675} 2215}
1676 2216
1677/* usually called after fork if backend needs to re-arm all fds from scratch */ 2217/* usually called after fork if backend needs to re-arm all fds from scratch */
1678static void noinline 2218noinline
2219static void
1679fd_rearm_all (EV_P) 2220fd_rearm_all (EV_P)
1680{ 2221{
1681 int fd; 2222 int fd;
1682 2223
1683 for (fd = 0; fd < anfdmax; ++fd) 2224 for (fd = 0; fd < anfdmax; ++fd)
… …
1864 2405
1865/*****************************************************************************/ 2406/*****************************************************************************/
1866 2407
1867#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2408#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1868 2409
1869static void noinline ecb_cold 2410noinline ecb_cold
2411static void
1870evpipe_init (EV_P) 2412evpipe_init (EV_P)
1871{ 2413{
1872 if (!ev_is_active (&pipe_w)) 2414 if (!ev_is_active (&pipe_w))
1873 { 2415 {
2416 int fds [2];
2417
1874# if EV_USE_EVENTFD 2418# if EV_USE_EVENTFD
2419 fds [0] = -1;
1875 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2420 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1876 if (evfd < 0 && errno == EINVAL) 2421 if (fds [1] < 0 && errno == EINVAL)
1877 evfd = eventfd (0, 0); 2422 fds [1] = eventfd (0, 0);
1878 2423
1879 if (evfd >= 0) 2424 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 2425# endif
1887 { 2426 {
1888 while (pipe (evpipe)) 2427 while (pipe (fds))
1889 ev_syserr ("(libev) error creating signal/async pipe"); 2428 ev_syserr ("(libev) error creating signal/async pipe");
1890 2429
1891 fd_intern (evpipe [0]); 2430 fd_intern (fds [0]);
1892 fd_intern (evpipe [1]);
1893 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1894 } 2431 }
1895 2432
2433 evpipe [0] = fds [0];
2434
2435 if (evpipe [1] < 0)
2436 evpipe [1] = fds [1]; /* first call, set write fd */
2437 else
2438 {
2439 /* on subsequent calls, do not change evpipe [1] */
2440 /* so that evpipe_write can always rely on its value. */
2441 /* this branch does not do anything sensible on windows, */
2442 /* so must not be executed on windows */
2443
2444 dup2 (fds [1], evpipe [1]);
2445 close (fds [1]);
2446 }
2447
2448 fd_intern (evpipe [1]);
2449
2450 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1896 ev_io_start (EV_A_ &pipe_w); 2451 ev_io_start (EV_A_ &pipe_w);
1897 ev_unref (EV_A); /* watcher should not keep loop alive */ 2452 ev_unref (EV_A); /* watcher should not keep loop alive */
1898 } 2453 }
1899} 2454}
1900 2455
… …
1921 ECB_MEMORY_FENCE_RELEASE; 2476 ECB_MEMORY_FENCE_RELEASE;
1922 2477
1923 old_errno = errno; /* save errno because write will clobber it */ 2478 old_errno = errno; /* save errno because write will clobber it */
1924 2479
1925#if EV_USE_EVENTFD 2480#if EV_USE_EVENTFD
1926 if (evfd >= 0) 2481 if (evpipe [0] < 0)
1927 { 2482 {
1928 uint64_t counter = 1; 2483 uint64_t counter = 1;
1929 write (evfd, &counter, sizeof (uint64_t)); 2484 write (evpipe [1], &counter, sizeof (uint64_t));
1930 } 2485 }
1931 else 2486 else
1932#endif 2487#endif
1933 { 2488 {
1934#ifdef _WIN32 2489#ifdef _WIN32
1935 WSABUF buf; 2490 WSABUF buf;
1936 DWORD sent; 2491 DWORD sent;
1937 buf.buf = &buf; 2492 buf.buf = (char *)&buf;
1938 buf.len = 1; 2493 buf.len = 1;
1939 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2494 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1940#else 2495#else
1941 write (evpipe [1], &(evpipe [1]), 1); 2496 write (evpipe [1], &(evpipe [1]), 1);
1942#endif 2497#endif
… …
1954 int i; 2509 int i;
1955 2510
1956 if (revents & EV_READ) 2511 if (revents & EV_READ)
1957 { 2512 {
1958#if EV_USE_EVENTFD 2513#if EV_USE_EVENTFD
1959 if (evfd >= 0) 2514 if (evpipe [0] < 0)
1960 { 2515 {
1961 uint64_t counter; 2516 uint64_t counter;
1962 read (evfd, &counter, sizeof (uint64_t)); 2517 read (evpipe [1], &counter, sizeof (uint64_t));
1963 } 2518 }
1964 else 2519 else
1965#endif 2520#endif
1966 { 2521 {
1967 char dummy[4]; 2522 char dummy[4];
… …
2014} 2569}
2015 2570
2016/*****************************************************************************/ 2571/*****************************************************************************/
2017 2572
2018void 2573void
2019ev_feed_signal (int signum) EV_THROW 2574ev_feed_signal (int signum) EV_NOEXCEPT
2020{ 2575{
2021#if EV_MULTIPLICITY 2576#if EV_MULTIPLICITY
2577 EV_P;
2578 ECB_MEMORY_FENCE_ACQUIRE;
2022 EV_P = signals [signum - 1].loop; 2579 EV_A = signals [signum - 1].loop;
2023 2580
2024 if (!EV_A) 2581 if (!EV_A)
2025 return; 2582 return;
2026#endif 2583#endif
2027 2584
2028 if (!ev_active (&pipe_w))
2029 return;
2030
2031 signals [signum - 1].pending = 1; 2585 signals [signum - 1].pending = 1;
2032 evpipe_write (EV_A_ &sig_pending); 2586 evpipe_write (EV_A_ &sig_pending);
2033} 2587}
2034 2588
2035static void 2589static void
… …
2040#endif 2594#endif
2041 2595
2042 ev_feed_signal (signum); 2596 ev_feed_signal (signum);
2043} 2597}
2044 2598
2045void noinline 2599noinline
2600void
2046ev_feed_signal_event (EV_P_ int signum) EV_THROW 2601ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2047{ 2602{
2048 WL w; 2603 WL w;
2049 2604
2050 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2605 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2051 return; 2606 return;
2052 2607
2053 --signum; 2608 --signum;
2054 2609
2055#if EV_MULTIPLICITY 2610#if EV_MULTIPLICITY
… …
2059 if (expect_false (signals [signum].loop != EV_A)) 2614 if (expect_false (signals [signum].loop != EV_A))
2060 return; 2615 return;
2061#endif 2616#endif
2062 2617
2063 signals [signum].pending = 0; 2618 signals [signum].pending = 0;
2064 MEMORY_FENCE_RELEASE; 2619 ECB_MEMORY_FENCE_RELEASE;
2065 2620
2066 for (w = signals [signum].head; w; w = w->next) 2621 for (w = signals [signum].head; w; w = w->next)
2067 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2622 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
2068} 2623}
2069 2624
… …
2157# include "ev_port.c" 2712# include "ev_port.c"
2158#endif 2713#endif
2159#if EV_USE_KQUEUE 2714#if EV_USE_KQUEUE
2160# include "ev_kqueue.c" 2715# include "ev_kqueue.c"
2161#endif 2716#endif
2717#if EV_USE_LINUXAIO
2718# include "ev_linuxaio.c"
2719#endif
2162#if EV_USE_EPOLL 2720#if EV_USE_EPOLL
2163# include "ev_epoll.c" 2721# include "ev_epoll.c"
2164#endif 2722#endif
2165#if EV_USE_POLL 2723#if EV_USE_POLL
2166# include "ev_poll.c" 2724# include "ev_poll.c"
2167#endif 2725#endif
2168#if EV_USE_SELECT 2726#if EV_USE_SELECT
2169# include "ev_select.c" 2727# include "ev_select.c"
2170#endif 2728#endif
2171 2729
2172int ecb_cold 2730ecb_cold int
2173ev_version_major (void) EV_THROW 2731ev_version_major (void) EV_NOEXCEPT
2174{ 2732{
2175 return EV_VERSION_MAJOR; 2733 return EV_VERSION_MAJOR;
2176} 2734}
2177 2735
2178int ecb_cold 2736ecb_cold int
2179ev_version_minor (void) EV_THROW 2737ev_version_minor (void) EV_NOEXCEPT
2180{ 2738{
2181 return EV_VERSION_MINOR; 2739 return EV_VERSION_MINOR;
2182} 2740}
2183 2741
2184/* return true if we are running with elevated privileges and should ignore env variables */ 2742/* return true if we are running with elevated privileges and should ignore env variables */
2185int inline_size ecb_cold 2743inline_size ecb_cold int
2186enable_secure (void) 2744enable_secure (void)
2187{ 2745{
2188#ifdef _WIN32 2746#ifdef _WIN32
2189 return 0; 2747 return 0;
2190#else 2748#else
2191 return getuid () != geteuid () 2749 return getuid () != geteuid ()
2192 || getgid () != getegid (); 2750 || getgid () != getegid ();
2193#endif 2751#endif
2194} 2752}
2195 2753
2196unsigned int ecb_cold 2754ecb_cold
2755unsigned int
2197ev_supported_backends (void) EV_THROW 2756ev_supported_backends (void) EV_NOEXCEPT
2198{ 2757{
2199 unsigned int flags = 0; 2758 unsigned int flags = 0;
2200 2759
2201 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2760 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2202 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2761 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2203 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2762 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2763 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2204 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2764 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2205 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2765 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2206 2766
2207 return flags; 2767 return flags;
2208} 2768}
2209 2769
2210unsigned int ecb_cold 2770ecb_cold
2771unsigned int
2211ev_recommended_backends (void) EV_THROW 2772ev_recommended_backends (void) EV_NOEXCEPT
2212{ 2773{
2213 unsigned int flags = ev_supported_backends (); 2774 unsigned int flags = ev_supported_backends ();
2214 2775
2215#ifndef __NetBSD__ 2776#ifndef __NetBSD__
2216 /* kqueue is borked on everything but netbsd apparently */ 2777 /* kqueue is borked on everything but netbsd apparently */
… …
2227#endif 2788#endif
2228 2789
2229 return flags; 2790 return flags;
2230} 2791}
2231 2792
2232unsigned int ecb_cold 2793ecb_cold
2794unsigned int
2233ev_embeddable_backends (void) EV_THROW 2795ev_embeddable_backends (void) EV_NOEXCEPT
2234{ 2796{
2235 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2797 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2236 2798
2237 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2799 /* 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 */ 2800 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2240 2802
2241 return flags; 2803 return flags;
2242} 2804}
2243 2805
2244unsigned int 2806unsigned int
2245ev_backend (EV_P) EV_THROW 2807ev_backend (EV_P) EV_NOEXCEPT
2246{ 2808{
2247 return backend; 2809 return backend;
2248} 2810}
2249 2811
2250#if EV_FEATURE_API 2812#if EV_FEATURE_API
2251unsigned int 2813unsigned int
2252ev_iteration (EV_P) EV_THROW 2814ev_iteration (EV_P) EV_NOEXCEPT
2253{ 2815{
2254 return loop_count; 2816 return loop_count;
2255} 2817}
2256 2818
2257unsigned int 2819unsigned int
2258ev_depth (EV_P) EV_THROW 2820ev_depth (EV_P) EV_NOEXCEPT
2259{ 2821{
2260 return loop_depth; 2822 return loop_depth;
2261} 2823}
2262 2824
2263void 2825void
2264ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2826ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2265{ 2827{
2266 io_blocktime = interval; 2828 io_blocktime = interval;
2267} 2829}
2268 2830
2269void 2831void
2270ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2832ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2271{ 2833{
2272 timeout_blocktime = interval; 2834 timeout_blocktime = interval;
2273} 2835}
2274 2836
2275void 2837void
2276ev_set_userdata (EV_P_ void *data) EV_THROW 2838ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2277{ 2839{
2278 userdata = data; 2840 userdata = data;
2279} 2841}
2280 2842
2281void * 2843void *
2282ev_userdata (EV_P) EV_THROW 2844ev_userdata (EV_P) EV_NOEXCEPT
2283{ 2845{
2284 return userdata; 2846 return userdata;
2285} 2847}
2286 2848
2287void 2849void
2288ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2850ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2289{ 2851{
2290 invoke_cb = invoke_pending_cb; 2852 invoke_cb = invoke_pending_cb;
2291} 2853}
2292 2854
2293void 2855void
2294ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2856ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2295{ 2857{
2296 release_cb = release; 2858 release_cb = release;
2297 acquire_cb = acquire; 2859 acquire_cb = acquire;
2298} 2860}
2299#endif 2861#endif
2300 2862
2301/* initialise a loop structure, must be zero-initialised */ 2863/* initialise a loop structure, must be zero-initialised */
2302static void noinline ecb_cold 2864noinline ecb_cold
2865static void
2303loop_init (EV_P_ unsigned int flags) EV_THROW 2866loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2304{ 2867{
2305 if (!backend) 2868 if (!backend)
2306 { 2869 {
2307 origflags = flags; 2870 origflags = flags;
2308 2871
… …
2353#if EV_ASYNC_ENABLE 2916#if EV_ASYNC_ENABLE
2354 async_pending = 0; 2917 async_pending = 0;
2355#endif 2918#endif
2356 pipe_write_skipped = 0; 2919 pipe_write_skipped = 0;
2357 pipe_write_wanted = 0; 2920 pipe_write_wanted = 0;
2921 evpipe [0] = -1;
2922 evpipe [1] = -1;
2358#if EV_USE_INOTIFY 2923#if EV_USE_INOTIFY
2359 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2924 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2360#endif 2925#endif
2361#if EV_USE_SIGNALFD 2926#if EV_USE_SIGNALFD
2362 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2927 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2364 2929
2365 if (!(flags & EVBACKEND_MASK)) 2930 if (!(flags & EVBACKEND_MASK))
2366 flags |= ev_recommended_backends (); 2931 flags |= ev_recommended_backends ();
2367 2932
2368#if EV_USE_IOCP 2933#if EV_USE_IOCP
2369 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2934 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2370#endif 2935#endif
2371#if EV_USE_PORT 2936#if EV_USE_PORT
2372 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2937 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2373#endif 2938#endif
2374#if EV_USE_KQUEUE 2939#if EV_USE_KQUEUE
2375 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2940 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2941#endif
2942#if EV_USE_LINUXAIO
2943 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2376#endif 2944#endif
2377#if EV_USE_EPOLL 2945#if EV_USE_EPOLL
2378 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2946 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2379#endif 2947#endif
2380#if EV_USE_POLL 2948#if EV_USE_POLL
2381 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2949 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2382#endif 2950#endif
2383#if EV_USE_SELECT 2951#if EV_USE_SELECT
2384 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2952 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2385#endif 2953#endif
2386 2954
2387 ev_prepare_init (&pending_w, pendingcb); 2955 ev_prepare_init (&pending_w, pendingcb);
2388 2956
2389#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2957#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2392#endif 2960#endif
2393 } 2961 }
2394} 2962}
2395 2963
2396/* free up a loop structure */ 2964/* free up a loop structure */
2397void ecb_cold 2965ecb_cold
2966void
2398ev_loop_destroy (EV_P) 2967ev_loop_destroy (EV_P)
2399{ 2968{
2400 int i; 2969 int i;
2401 2970
2402#if EV_MULTIPLICITY 2971#if EV_MULTIPLICITY
… …
2425 if (ev_is_active (&pipe_w)) 2994 if (ev_is_active (&pipe_w))
2426 { 2995 {
2427 /*ev_ref (EV_A);*/ 2996 /*ev_ref (EV_A);*/
2428 /*ev_io_stop (EV_A_ &pipe_w);*/ 2997 /*ev_io_stop (EV_A_ &pipe_w);*/
2429 2998
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]); 2999 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2438 EV_WIN32_CLOSE_FD (evpipe [1]); 3000 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2439 }
2440 } 3001 }
2441 3002
2442#if EV_USE_SIGNALFD 3003#if EV_USE_SIGNALFD
2443 if (ev_is_active (&sigfd_w)) 3004 if (ev_is_active (&sigfd_w))
2444 close (sigfd); 3005 close (sigfd);
… …
2451 3012
2452 if (backend_fd >= 0) 3013 if (backend_fd >= 0)
2453 close (backend_fd); 3014 close (backend_fd);
2454 3015
2455#if EV_USE_IOCP 3016#if EV_USE_IOCP
2456 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3017 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2457#endif 3018#endif
2458#if EV_USE_PORT 3019#if EV_USE_PORT
2459 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3020 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2460#endif 3021#endif
2461#if EV_USE_KQUEUE 3022#if EV_USE_KQUEUE
2462 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3023 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3024#endif
3025#if EV_USE_LINUXAIO
3026 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2463#endif 3027#endif
2464#if EV_USE_EPOLL 3028#if EV_USE_EPOLL
2465 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3029 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2466#endif 3030#endif
2467#if EV_USE_POLL 3031#if EV_USE_POLL
2468 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3032 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2469#endif 3033#endif
2470#if EV_USE_SELECT 3034#if EV_USE_SELECT
2471 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3035 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2472#endif 3036#endif
2473 3037
2474 for (i = NUMPRI; i--; ) 3038 for (i = NUMPRI; i--; )
2475 { 3039 {
2476 array_free (pending, [i]); 3040 array_free (pending, [i]);
… …
2518 3082
2519inline_size void 3083inline_size void
2520loop_fork (EV_P) 3084loop_fork (EV_P)
2521{ 3085{
2522#if EV_USE_PORT 3086#if EV_USE_PORT
2523 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3087 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2524#endif 3088#endif
2525#if EV_USE_KQUEUE 3089#if EV_USE_KQUEUE
2526 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3090 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3091#endif
3092#if EV_USE_LINUXAIO
3093 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2527#endif 3094#endif
2528#if EV_USE_EPOLL 3095#if EV_USE_EPOLL
2529 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3096 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2530#endif 3097#endif
2531#if EV_USE_INOTIFY 3098#if EV_USE_INOTIFY
2532 infy_fork (EV_A); 3099 infy_fork (EV_A);
2533#endif 3100#endif
2534 3101
3102#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2535 if (ev_is_active (&pipe_w)) 3103 if (ev_is_active (&pipe_w) && postfork != 2)
2536 { 3104 {
2537 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3105 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2538 3106
2539 ev_ref (EV_A); 3107 ev_ref (EV_A);
2540 ev_io_stop (EV_A_ &pipe_w); 3108 ev_io_stop (EV_A_ &pipe_w);
2541 3109
2542#if EV_USE_EVENTFD
2543 if (evfd >= 0)
2544 close (evfd);
2545#endif
2546
2547 if (evpipe [0] >= 0) 3110 if (evpipe [0] >= 0)
2548 {
2549 EV_WIN32_CLOSE_FD (evpipe [0]); 3111 EV_WIN32_CLOSE_FD (evpipe [0]);
2550 EV_WIN32_CLOSE_FD (evpipe [1]);
2551 }
2552 3112
2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2554 evpipe_init (EV_A); 3113 evpipe_init (EV_A);
2555 /* now iterate over everything, in case we missed something */ 3114 /* iterate over everything, in case we missed something before */
2556 pipecb (EV_A_ &pipe_w, EV_READ); 3115 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2557#endif
2558 } 3116 }
3117#endif
2559 3118
2560 postfork = 0; 3119 postfork = 0;
2561} 3120}
2562 3121
2563#if EV_MULTIPLICITY 3122#if EV_MULTIPLICITY
2564 3123
3124ecb_cold
2565struct ev_loop * ecb_cold 3125struct ev_loop *
2566ev_loop_new (unsigned int flags) EV_THROW 3126ev_loop_new (unsigned int flags) EV_NOEXCEPT
2567{ 3127{
2568 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3128 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2569 3129
2570 memset (EV_A, 0, sizeof (struct ev_loop)); 3130 memset (EV_A, 0, sizeof (struct ev_loop));
2571 loop_init (EV_A_ flags); 3131 loop_init (EV_A_ flags);
… …
2578} 3138}
2579 3139
2580#endif /* multiplicity */ 3140#endif /* multiplicity */
2581 3141
2582#if EV_VERIFY 3142#if EV_VERIFY
2583static void noinline ecb_cold 3143noinline ecb_cold
3144static void
2584verify_watcher (EV_P_ W w) 3145verify_watcher (EV_P_ W w)
2585{ 3146{
2586 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3147 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2587 3148
2588 if (w->pending) 3149 if (w->pending)
2589 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3150 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2590} 3151}
2591 3152
2592static void noinline ecb_cold 3153noinline ecb_cold
3154static void
2593verify_heap (EV_P_ ANHE *heap, int N) 3155verify_heap (EV_P_ ANHE *heap, int N)
2594{ 3156{
2595 int i; 3157 int i;
2596 3158
2597 for (i = HEAP0; i < N + HEAP0; ++i) 3159 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2602 3164
2603 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3165 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2604 } 3166 }
2605} 3167}
2606 3168
2607static void noinline ecb_cold 3169noinline ecb_cold
3170static void
2608array_verify (EV_P_ W *ws, int cnt) 3171array_verify (EV_P_ W *ws, int cnt)
2609{ 3172{
2610 while (cnt--) 3173 while (cnt--)
2611 { 3174 {
2612 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3175 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2615} 3178}
2616#endif 3179#endif
2617 3180
2618#if EV_FEATURE_API 3181#if EV_FEATURE_API
2619void ecb_cold 3182void ecb_cold
2620ev_verify (EV_P) EV_THROW 3183ev_verify (EV_P) EV_NOEXCEPT
2621{ 3184{
2622#if EV_VERIFY 3185#if EV_VERIFY
2623 int i; 3186 int i;
2624 WL w, w2; 3187 WL w, w2;
2625 3188
… …
2701#endif 3264#endif
2702} 3265}
2703#endif 3266#endif
2704 3267
2705#if EV_MULTIPLICITY 3268#if EV_MULTIPLICITY
3269ecb_cold
2706struct ev_loop * ecb_cold 3270struct ev_loop *
2707#else 3271#else
2708int 3272int
2709#endif 3273#endif
2710ev_default_loop (unsigned int flags) EV_THROW 3274ev_default_loop (unsigned int flags) EV_NOEXCEPT
2711{ 3275{
2712 if (!ev_default_loop_ptr) 3276 if (!ev_default_loop_ptr)
2713 { 3277 {
2714#if EV_MULTIPLICITY 3278#if EV_MULTIPLICITY
2715 EV_P = ev_default_loop_ptr = &default_loop_struct; 3279 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2734 3298
2735 return ev_default_loop_ptr; 3299 return ev_default_loop_ptr;
2736} 3300}
2737 3301
2738void 3302void
2739ev_loop_fork (EV_P) EV_THROW 3303ev_loop_fork (EV_P) EV_NOEXCEPT
2740{ 3304{
2741 postfork = 1; /* must be in line with ev_default_fork */ 3305 postfork = 1;
2742} 3306}
2743 3307
2744/*****************************************************************************/ 3308/*****************************************************************************/
2745 3309
2746void 3310void
… …
2748{ 3312{
2749 EV_CB_INVOKE ((W)w, revents); 3313 EV_CB_INVOKE ((W)w, revents);
2750} 3314}
2751 3315
2752unsigned int 3316unsigned int
2753ev_pending_count (EV_P) EV_THROW 3317ev_pending_count (EV_P) EV_NOEXCEPT
2754{ 3318{
2755 int pri; 3319 int pri;
2756 unsigned int count = 0; 3320 unsigned int count = 0;
2757 3321
2758 for (pri = NUMPRI; pri--; ) 3322 for (pri = NUMPRI; pri--; )
2759 count += pendingcnt [pri]; 3323 count += pendingcnt [pri];
2760 3324
2761 return count; 3325 return count;
2762} 3326}
2763 3327
2764void noinline 3328noinline
3329void
2765ev_invoke_pending (EV_P) 3330ev_invoke_pending (EV_P)
2766{ 3331{
2767 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ 3332 pendingpri = NUMPRI;
3333
3334 do
3335 {
3336 --pendingpri;
3337
3338 /* pendingpri possibly gets modified in the inner loop */
2768 while (pendingcnt [pendingpri]) 3339 while (pendingcnt [pendingpri])
2769 { 3340 {
2770 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3341 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2771 3342
2772 p->w->pending = 0; 3343 p->w->pending = 0;
2773 EV_CB_INVOKE (p->w, p->events); 3344 EV_CB_INVOKE (p->w, p->events);
2774 EV_FREQUENT_CHECK; 3345 EV_FREQUENT_CHECK;
2775 } 3346 }
3347 }
3348 while (pendingpri);
2776} 3349}
2777 3350
2778#if EV_IDLE_ENABLE 3351#if EV_IDLE_ENABLE
2779/* make idle watchers pending. this handles the "call-idle */ 3352/* make idle watchers pending. this handles the "call-idle */
2780/* only when higher priorities are idle" logic */ 3353/* only when higher priorities are idle" logic */
… …
2838 } 3411 }
2839} 3412}
2840 3413
2841#if EV_PERIODIC_ENABLE 3414#if EV_PERIODIC_ENABLE
2842 3415
2843static void noinline 3416noinline
3417static void
2844periodic_recalc (EV_P_ ev_periodic *w) 3418periodic_recalc (EV_P_ ev_periodic *w)
2845{ 3419{
2846 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3420 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2847 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3421 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2848 3422
… …
2906 } 3480 }
2907} 3481}
2908 3482
2909/* simply recalculate all periodics */ 3483/* simply recalculate all periodics */
2910/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3484/* TODO: maybe ensure that at least one event happens when jumping forward? */
2911static void noinline ecb_cold 3485noinline ecb_cold
3486static void
2912periodics_reschedule (EV_P) 3487periodics_reschedule (EV_P)
2913{ 3488{
2914 int i; 3489 int i;
2915 3490
2916 /* adjust periodics after time jump */ 3491 /* adjust periodics after time jump */
… …
2929 reheap (periodics, periodiccnt); 3504 reheap (periodics, periodiccnt);
2930} 3505}
2931#endif 3506#endif
2932 3507
2933/* adjust all timers by a given offset */ 3508/* adjust all timers by a given offset */
2934static void noinline ecb_cold 3509noinline ecb_cold
3510static void
2935timers_reschedule (EV_P_ ev_tstamp adjust) 3511timers_reschedule (EV_P_ ev_tstamp adjust)
2936{ 3512{
2937 int i; 3513 int i;
2938 3514
2939 for (i = 0; i < timercnt; ++i) 3515 for (i = 0; i < timercnt; ++i)
… …
3138 backend_poll (EV_A_ waittime); 3714 backend_poll (EV_A_ waittime);
3139 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3715 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3140 3716
3141 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3717 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3142 3718
3719 ECB_MEMORY_FENCE_ACQUIRE;
3143 if (pipe_write_skipped) 3720 if (pipe_write_skipped)
3144 { 3721 {
3145 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3722 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3146 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3723 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3147 } 3724 }
… …
3185 3762
3186 return activecnt; 3763 return activecnt;
3187} 3764}
3188 3765
3189void 3766void
3190ev_break (EV_P_ int how) EV_THROW 3767ev_break (EV_P_ int how) EV_NOEXCEPT
3191{ 3768{
3192 loop_done = how; 3769 loop_done = how;
3193} 3770}
3194 3771
3195void 3772void
3196ev_ref (EV_P) EV_THROW 3773ev_ref (EV_P) EV_NOEXCEPT
3197{ 3774{
3198 ++activecnt; 3775 ++activecnt;
3199} 3776}
3200 3777
3201void 3778void
3202ev_unref (EV_P) EV_THROW 3779ev_unref (EV_P) EV_NOEXCEPT
3203{ 3780{
3204 --activecnt; 3781 --activecnt;
3205} 3782}
3206 3783
3207void 3784void
3208ev_now_update (EV_P) EV_THROW 3785ev_now_update (EV_P) EV_NOEXCEPT
3209{ 3786{
3210 time_update (EV_A_ 1e100); 3787 time_update (EV_A_ 1e100);
3211} 3788}
3212 3789
3213void 3790void
3214ev_suspend (EV_P) EV_THROW 3791ev_suspend (EV_P) EV_NOEXCEPT
3215{ 3792{
3216 ev_now_update (EV_A); 3793 ev_now_update (EV_A);
3217} 3794}
3218 3795
3219void 3796void
3220ev_resume (EV_P) EV_THROW 3797ev_resume (EV_P) EV_NOEXCEPT
3221{ 3798{
3222 ev_tstamp mn_prev = mn_now; 3799 ev_tstamp mn_prev = mn_now;
3223 3800
3224 ev_now_update (EV_A); 3801 ev_now_update (EV_A);
3225 timers_reschedule (EV_A_ mn_now - mn_prev); 3802 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3264 w->pending = 0; 3841 w->pending = 0;
3265 } 3842 }
3266} 3843}
3267 3844
3268int 3845int
3269ev_clear_pending (EV_P_ void *w) EV_THROW 3846ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3270{ 3847{
3271 W w_ = (W)w; 3848 W w_ = (W)w;
3272 int pending = w_->pending; 3849 int pending = w_->pending;
3273 3850
3274 if (expect_true (pending)) 3851 if (expect_true (pending))
… …
3306 w->active = 0; 3883 w->active = 0;
3307} 3884}
3308 3885
3309/*****************************************************************************/ 3886/*****************************************************************************/
3310 3887
3311void noinline 3888noinline
3889void
3312ev_io_start (EV_P_ ev_io *w) EV_THROW 3890ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3313{ 3891{
3314 int fd = w->fd; 3892 int fd = w->fd;
3315 3893
3316 if (expect_false (ev_is_active (w))) 3894 if (expect_false (ev_is_active (w)))
3317 return; 3895 return;
… …
3320 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3898 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3321 3899
3322 EV_FREQUENT_CHECK; 3900 EV_FREQUENT_CHECK;
3323 3901
3324 ev_start (EV_A_ (W)w, 1); 3902 ev_start (EV_A_ (W)w, 1);
3325 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3903 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3326 wlist_add (&anfds[fd].head, (WL)w); 3904 wlist_add (&anfds[fd].head, (WL)w);
3327 3905
3328 /* common bug, apparently */ 3906 /* common bug, apparently */
3329 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3907 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3330 3908
… …
3332 w->events &= ~EV__IOFDSET; 3910 w->events &= ~EV__IOFDSET;
3333 3911
3334 EV_FREQUENT_CHECK; 3912 EV_FREQUENT_CHECK;
3335} 3913}
3336 3914
3337void noinline 3915noinline
3916void
3338ev_io_stop (EV_P_ ev_io *w) EV_THROW 3917ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3339{ 3918{
3340 clear_pending (EV_A_ (W)w); 3919 clear_pending (EV_A_ (W)w);
3341 if (expect_false (!ev_is_active (w))) 3920 if (expect_false (!ev_is_active (w)))
3342 return; 3921 return;
3343 3922
… …
3351 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3930 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3352 3931
3353 EV_FREQUENT_CHECK; 3932 EV_FREQUENT_CHECK;
3354} 3933}
3355 3934
3356void noinline 3935noinline
3936void
3357ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3937ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3358{ 3938{
3359 if (expect_false (ev_is_active (w))) 3939 if (expect_false (ev_is_active (w)))
3360 return; 3940 return;
3361 3941
3362 ev_at (w) += mn_now; 3942 ev_at (w) += mn_now;
… …
3365 3945
3366 EV_FREQUENT_CHECK; 3946 EV_FREQUENT_CHECK;
3367 3947
3368 ++timercnt; 3948 ++timercnt;
3369 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3949 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3370 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3950 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3371 ANHE_w (timers [ev_active (w)]) = (WT)w; 3951 ANHE_w (timers [ev_active (w)]) = (WT)w;
3372 ANHE_at_cache (timers [ev_active (w)]); 3952 ANHE_at_cache (timers [ev_active (w)]);
3373 upheap (timers, ev_active (w)); 3953 upheap (timers, ev_active (w));
3374 3954
3375 EV_FREQUENT_CHECK; 3955 EV_FREQUENT_CHECK;
3376 3956
3377 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3957 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3378} 3958}
3379 3959
3380void noinline 3960noinline
3961void
3381ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3962ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3382{ 3963{
3383 clear_pending (EV_A_ (W)w); 3964 clear_pending (EV_A_ (W)w);
3384 if (expect_false (!ev_is_active (w))) 3965 if (expect_false (!ev_is_active (w)))
3385 return; 3966 return;
3386 3967
… …
3405 ev_stop (EV_A_ (W)w); 3986 ev_stop (EV_A_ (W)w);
3406 3987
3407 EV_FREQUENT_CHECK; 3988 EV_FREQUENT_CHECK;
3408} 3989}
3409 3990
3410void noinline 3991noinline
3992void
3411ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3993ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3412{ 3994{
3413 EV_FREQUENT_CHECK; 3995 EV_FREQUENT_CHECK;
3414 3996
3415 clear_pending (EV_A_ (W)w); 3997 clear_pending (EV_A_ (W)w);
3416 3998
… …
3433 4015
3434 EV_FREQUENT_CHECK; 4016 EV_FREQUENT_CHECK;
3435} 4017}
3436 4018
3437ev_tstamp 4019ev_tstamp
3438ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4020ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3439{ 4021{
3440 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4022 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3441} 4023}
3442 4024
3443#if EV_PERIODIC_ENABLE 4025#if EV_PERIODIC_ENABLE
3444void noinline 4026noinline
4027void
3445ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4028ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3446{ 4029{
3447 if (expect_false (ev_is_active (w))) 4030 if (expect_false (ev_is_active (w)))
3448 return; 4031 return;
3449 4032
3450 if (w->reschedule_cb) 4033 if (w->reschedule_cb)
… …
3459 4042
3460 EV_FREQUENT_CHECK; 4043 EV_FREQUENT_CHECK;
3461 4044
3462 ++periodiccnt; 4045 ++periodiccnt;
3463 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4046 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3464 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4047 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3465 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4048 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3466 ANHE_at_cache (periodics [ev_active (w)]); 4049 ANHE_at_cache (periodics [ev_active (w)]);
3467 upheap (periodics, ev_active (w)); 4050 upheap (periodics, ev_active (w));
3468 4051
3469 EV_FREQUENT_CHECK; 4052 EV_FREQUENT_CHECK;
3470 4053
3471 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4054 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3472} 4055}
3473 4056
3474void noinline 4057noinline
4058void
3475ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4059ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3476{ 4060{
3477 clear_pending (EV_A_ (W)w); 4061 clear_pending (EV_A_ (W)w);
3478 if (expect_false (!ev_is_active (w))) 4062 if (expect_false (!ev_is_active (w)))
3479 return; 4063 return;
3480 4064
… …
3497 ev_stop (EV_A_ (W)w); 4081 ev_stop (EV_A_ (W)w);
3498 4082
3499 EV_FREQUENT_CHECK; 4083 EV_FREQUENT_CHECK;
3500} 4084}
3501 4085
3502void noinline 4086noinline
4087void
3503ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4088ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3504{ 4089{
3505 /* TODO: use adjustheap and recalculation */ 4090 /* TODO: use adjustheap and recalculation */
3506 ev_periodic_stop (EV_A_ w); 4091 ev_periodic_stop (EV_A_ w);
3507 ev_periodic_start (EV_A_ w); 4092 ev_periodic_start (EV_A_ w);
3508} 4093}
… …
3512# define SA_RESTART 0 4097# define SA_RESTART 0
3513#endif 4098#endif
3514 4099
3515#if EV_SIGNAL_ENABLE 4100#if EV_SIGNAL_ENABLE
3516 4101
3517void noinline 4102noinline
4103void
3518ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4104ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3519{ 4105{
3520 if (expect_false (ev_is_active (w))) 4106 if (expect_false (ev_is_active (w)))
3521 return; 4107 return;
3522 4108
3523 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4109 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3525#if EV_MULTIPLICITY 4111#if EV_MULTIPLICITY
3526 assert (("libev: a signal must not be attached to two different loops", 4112 assert (("libev: a signal must not be attached to two different loops",
3527 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4113 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3528 4114
3529 signals [w->signum - 1].loop = EV_A; 4115 signals [w->signum - 1].loop = EV_A;
4116 ECB_MEMORY_FENCE_RELEASE;
3530#endif 4117#endif
3531 4118
3532 EV_FREQUENT_CHECK; 4119 EV_FREQUENT_CHECK;
3533 4120
3534#if EV_USE_SIGNALFD 4121#if EV_USE_SIGNALFD
… …
3593 } 4180 }
3594 4181
3595 EV_FREQUENT_CHECK; 4182 EV_FREQUENT_CHECK;
3596} 4183}
3597 4184
3598void noinline 4185noinline
4186void
3599ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4187ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3600{ 4188{
3601 clear_pending (EV_A_ (W)w); 4189 clear_pending (EV_A_ (W)w);
3602 if (expect_false (!ev_is_active (w))) 4190 if (expect_false (!ev_is_active (w)))
3603 return; 4191 return;
3604 4192
… …
3635#endif 4223#endif
3636 4224
3637#if EV_CHILD_ENABLE 4225#if EV_CHILD_ENABLE
3638 4226
3639void 4227void
3640ev_child_start (EV_P_ ev_child *w) EV_THROW 4228ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3641{ 4229{
3642#if EV_MULTIPLICITY 4230#if EV_MULTIPLICITY
3643 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4231 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3644#endif 4232#endif
3645 if (expect_false (ev_is_active (w))) 4233 if (expect_false (ev_is_active (w)))
… …
3652 4240
3653 EV_FREQUENT_CHECK; 4241 EV_FREQUENT_CHECK;
3654} 4242}
3655 4243
3656void 4244void
3657ev_child_stop (EV_P_ ev_child *w) EV_THROW 4245ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3658{ 4246{
3659 clear_pending (EV_A_ (W)w); 4247 clear_pending (EV_A_ (W)w);
3660 if (expect_false (!ev_is_active (w))) 4248 if (expect_false (!ev_is_active (w)))
3661 return; 4249 return;
3662 4250
… …
3679 4267
3680#define DEF_STAT_INTERVAL 5.0074891 4268#define DEF_STAT_INTERVAL 5.0074891
3681#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4269#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3682#define MIN_STAT_INTERVAL 0.1074891 4270#define MIN_STAT_INTERVAL 0.1074891
3683 4271
3684static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4272noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3685 4273
3686#if EV_USE_INOTIFY 4274#if EV_USE_INOTIFY
3687 4275
3688/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4276/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3689# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4277# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3690 4278
3691static void noinline 4279noinline
4280static void
3692infy_add (EV_P_ ev_stat *w) 4281infy_add (EV_P_ ev_stat *w)
3693{ 4282{
3694 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); 4283 w->wd = inotify_add_watch (fs_fd, w->path,
4284 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4285 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4286 | IN_DONT_FOLLOW | IN_MASK_ADD);
3695 4287
3696 if (w->wd >= 0) 4288 if (w->wd >= 0)
3697 { 4289 {
3698 struct statfs sfs; 4290 struct statfs sfs;
3699 4291
… …
3703 4295
3704 if (!fs_2625) 4296 if (!fs_2625)
3705 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4297 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3706 else if (!statfs (w->path, &sfs) 4298 else if (!statfs (w->path, &sfs)
3707 && (sfs.f_type == 0x1373 /* devfs */ 4299 && (sfs.f_type == 0x1373 /* devfs */
4300 || sfs.f_type == 0x4006 /* fat */
4301 || sfs.f_type == 0x4d44 /* msdos */
3708 || sfs.f_type == 0xEF53 /* ext2/3 */ 4302 || sfs.f_type == 0xEF53 /* ext2/3 */
4303 || sfs.f_type == 0x72b6 /* jffs2 */
4304 || sfs.f_type == 0x858458f6 /* ramfs */
4305 || sfs.f_type == 0x5346544e /* ntfs */
3709 || sfs.f_type == 0x3153464a /* jfs */ 4306 || sfs.f_type == 0x3153464a /* jfs */
4307 || sfs.f_type == 0x9123683e /* btrfs */
3710 || sfs.f_type == 0x52654973 /* reiser3 */ 4308 || sfs.f_type == 0x52654973 /* reiser3 */
3711 || sfs.f_type == 0x01021994 /* tempfs */ 4309 || sfs.f_type == 0x01021994 /* tmpfs */
3712 || sfs.f_type == 0x58465342 /* xfs */)) 4310 || sfs.f_type == 0x58465342 /* xfs */))
3713 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4311 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3714 else 4312 else
3715 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4313 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3716 } 4314 }
… …
3751 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4349 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3752 ev_timer_again (EV_A_ &w->timer); 4350 ev_timer_again (EV_A_ &w->timer);
3753 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4351 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3754} 4352}
3755 4353
3756static void noinline 4354noinline
4355static void
3757infy_del (EV_P_ ev_stat *w) 4356infy_del (EV_P_ ev_stat *w)
3758{ 4357{
3759 int slot; 4358 int slot;
3760 int wd = w->wd; 4359 int wd = w->wd;
3761 4360
… …
3768 4367
3769 /* remove this watcher, if others are watching it, they will rearm */ 4368 /* remove this watcher, if others are watching it, they will rearm */
3770 inotify_rm_watch (fs_fd, wd); 4369 inotify_rm_watch (fs_fd, wd);
3771} 4370}
3772 4371
3773static void noinline 4372noinline
4373static void
3774infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4374infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3775{ 4375{
3776 if (slot < 0) 4376 if (slot < 0)
3777 /* overflow, need to check for all hash slots */ 4377 /* overflow, need to check for all hash slots */
3778 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4378 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3814 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4414 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3815 ofs += sizeof (struct inotify_event) + ev->len; 4415 ofs += sizeof (struct inotify_event) + ev->len;
3816 } 4416 }
3817} 4417}
3818 4418
3819inline_size void ecb_cold 4419inline_size ecb_cold
4420void
3820ev_check_2625 (EV_P) 4421ev_check_2625 (EV_P)
3821{ 4422{
3822 /* kernels < 2.6.25 are borked 4423 /* kernels < 2.6.25 are borked
3823 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4424 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3824 */ 4425 */
… …
3914#else 4515#else
3915# define EV_LSTAT(p,b) lstat (p, b) 4516# define EV_LSTAT(p,b) lstat (p, b)
3916#endif 4517#endif
3917 4518
3918void 4519void
3919ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4520ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3920{ 4521{
3921 if (lstat (w->path, &w->attr) < 0) 4522 if (lstat (w->path, &w->attr) < 0)
3922 w->attr.st_nlink = 0; 4523 w->attr.st_nlink = 0;
3923 else if (!w->attr.st_nlink) 4524 else if (!w->attr.st_nlink)
3924 w->attr.st_nlink = 1; 4525 w->attr.st_nlink = 1;
3925} 4526}
3926 4527
3927static void noinline 4528noinline
4529static void
3928stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4530stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3929{ 4531{
3930 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4532 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3931 4533
3932 ev_statdata prev = w->attr; 4534 ev_statdata prev = w->attr;
… …
3963 ev_feed_event (EV_A_ w, EV_STAT); 4565 ev_feed_event (EV_A_ w, EV_STAT);
3964 } 4566 }
3965} 4567}
3966 4568
3967void 4569void
3968ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4570ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3969{ 4571{
3970 if (expect_false (ev_is_active (w))) 4572 if (expect_false (ev_is_active (w)))
3971 return; 4573 return;
3972 4574
3973 ev_stat_stat (EV_A_ w); 4575 ev_stat_stat (EV_A_ w);
… …
3994 4596
3995 EV_FREQUENT_CHECK; 4597 EV_FREQUENT_CHECK;
3996} 4598}
3997 4599
3998void 4600void
3999ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4601ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4000{ 4602{
4001 clear_pending (EV_A_ (W)w); 4603 clear_pending (EV_A_ (W)w);
4002 if (expect_false (!ev_is_active (w))) 4604 if (expect_false (!ev_is_active (w)))
4003 return; 4605 return;
4004 4606
… …
4020} 4622}
4021#endif 4623#endif
4022 4624
4023#if EV_IDLE_ENABLE 4625#if EV_IDLE_ENABLE
4024void 4626void
4025ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4627ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4026{ 4628{
4027 if (expect_false (ev_is_active (w))) 4629 if (expect_false (ev_is_active (w)))
4028 return; 4630 return;
4029 4631
4030 pri_adjust (EV_A_ (W)w); 4632 pri_adjust (EV_A_ (W)w);
… …
4035 int active = ++idlecnt [ABSPRI (w)]; 4637 int active = ++idlecnt [ABSPRI (w)];
4036 4638
4037 ++idleall; 4639 ++idleall;
4038 ev_start (EV_A_ (W)w, active); 4640 ev_start (EV_A_ (W)w, active);
4039 4641
4040 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4642 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4041 idles [ABSPRI (w)][active - 1] = w; 4643 idles [ABSPRI (w)][active - 1] = w;
4042 } 4644 }
4043 4645
4044 EV_FREQUENT_CHECK; 4646 EV_FREQUENT_CHECK;
4045} 4647}
4046 4648
4047void 4649void
4048ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4650ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4049{ 4651{
4050 clear_pending (EV_A_ (W)w); 4652 clear_pending (EV_A_ (W)w);
4051 if (expect_false (!ev_is_active (w))) 4653 if (expect_false (!ev_is_active (w)))
4052 return; 4654 return;
4053 4655
… …
4067} 4669}
4068#endif 4670#endif
4069 4671
4070#if EV_PREPARE_ENABLE 4672#if EV_PREPARE_ENABLE
4071void 4673void
4072ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4674ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4073{ 4675{
4074 if (expect_false (ev_is_active (w))) 4676 if (expect_false (ev_is_active (w)))
4075 return; 4677 return;
4076 4678
4077 EV_FREQUENT_CHECK; 4679 EV_FREQUENT_CHECK;
4078 4680
4079 ev_start (EV_A_ (W)w, ++preparecnt); 4681 ev_start (EV_A_ (W)w, ++preparecnt);
4080 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4682 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4081 prepares [preparecnt - 1] = w; 4683 prepares [preparecnt - 1] = w;
4082 4684
4083 EV_FREQUENT_CHECK; 4685 EV_FREQUENT_CHECK;
4084} 4686}
4085 4687
4086void 4688void
4087ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4689ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4088{ 4690{
4089 clear_pending (EV_A_ (W)w); 4691 clear_pending (EV_A_ (W)w);
4090 if (expect_false (!ev_is_active (w))) 4692 if (expect_false (!ev_is_active (w)))
4091 return; 4693 return;
4092 4694
… …
4105} 4707}
4106#endif 4708#endif
4107 4709
4108#if EV_CHECK_ENABLE 4710#if EV_CHECK_ENABLE
4109void 4711void
4110ev_check_start (EV_P_ ev_check *w) EV_THROW 4712ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4111{ 4713{
4112 if (expect_false (ev_is_active (w))) 4714 if (expect_false (ev_is_active (w)))
4113 return; 4715 return;
4114 4716
4115 EV_FREQUENT_CHECK; 4717 EV_FREQUENT_CHECK;
4116 4718
4117 ev_start (EV_A_ (W)w, ++checkcnt); 4719 ev_start (EV_A_ (W)w, ++checkcnt);
4118 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4720 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4119 checks [checkcnt - 1] = w; 4721 checks [checkcnt - 1] = w;
4120 4722
4121 EV_FREQUENT_CHECK; 4723 EV_FREQUENT_CHECK;
4122} 4724}
4123 4725
4124void 4726void
4125ev_check_stop (EV_P_ ev_check *w) EV_THROW 4727ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4126{ 4728{
4127 clear_pending (EV_A_ (W)w); 4729 clear_pending (EV_A_ (W)w);
4128 if (expect_false (!ev_is_active (w))) 4730 if (expect_false (!ev_is_active (w)))
4129 return; 4731 return;
4130 4732
… …
4142 EV_FREQUENT_CHECK; 4744 EV_FREQUENT_CHECK;
4143} 4745}
4144#endif 4746#endif
4145 4747
4146#if EV_EMBED_ENABLE 4748#if EV_EMBED_ENABLE
4147void noinline 4749noinline
4750void
4148ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4751ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4149{ 4752{
4150 ev_run (w->other, EVRUN_NOWAIT); 4753 ev_run (w->other, EVRUN_NOWAIT);
4151} 4754}
4152 4755
4153static void 4756static void
… …
4201 ev_idle_stop (EV_A_ idle); 4804 ev_idle_stop (EV_A_ idle);
4202} 4805}
4203#endif 4806#endif
4204 4807
4205void 4808void
4206ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4809ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4207{ 4810{
4208 if (expect_false (ev_is_active (w))) 4811 if (expect_false (ev_is_active (w)))
4209 return; 4812 return;
4210 4813
4211 { 4814 {
… …
4232 4835
4233 EV_FREQUENT_CHECK; 4836 EV_FREQUENT_CHECK;
4234} 4837}
4235 4838
4236void 4839void
4237ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4840ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4238{ 4841{
4239 clear_pending (EV_A_ (W)w); 4842 clear_pending (EV_A_ (W)w);
4240 if (expect_false (!ev_is_active (w))) 4843 if (expect_false (!ev_is_active (w)))
4241 return; 4844 return;
4242 4845
… …
4252} 4855}
4253#endif 4856#endif
4254 4857
4255#if EV_FORK_ENABLE 4858#if EV_FORK_ENABLE
4256void 4859void
4257ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4860ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4258{ 4861{
4259 if (expect_false (ev_is_active (w))) 4862 if (expect_false (ev_is_active (w)))
4260 return; 4863 return;
4261 4864
4262 EV_FREQUENT_CHECK; 4865 EV_FREQUENT_CHECK;
4263 4866
4264 ev_start (EV_A_ (W)w, ++forkcnt); 4867 ev_start (EV_A_ (W)w, ++forkcnt);
4265 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4868 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4266 forks [forkcnt - 1] = w; 4869 forks [forkcnt - 1] = w;
4267 4870
4268 EV_FREQUENT_CHECK; 4871 EV_FREQUENT_CHECK;
4269} 4872}
4270 4873
4271void 4874void
4272ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4875ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4273{ 4876{
4274 clear_pending (EV_A_ (W)w); 4877 clear_pending (EV_A_ (W)w);
4275 if (expect_false (!ev_is_active (w))) 4878 if (expect_false (!ev_is_active (w)))
4276 return; 4879 return;
4277 4880
… …
4290} 4893}
4291#endif 4894#endif
4292 4895
4293#if EV_CLEANUP_ENABLE 4896#if EV_CLEANUP_ENABLE
4294void 4897void
4295ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4898ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4296{ 4899{
4297 if (expect_false (ev_is_active (w))) 4900 if (expect_false (ev_is_active (w)))
4298 return; 4901 return;
4299 4902
4300 EV_FREQUENT_CHECK; 4903 EV_FREQUENT_CHECK;
4301 4904
4302 ev_start (EV_A_ (W)w, ++cleanupcnt); 4905 ev_start (EV_A_ (W)w, ++cleanupcnt);
4303 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4906 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4304 cleanups [cleanupcnt - 1] = w; 4907 cleanups [cleanupcnt - 1] = w;
4305 4908
4306 /* cleanup watchers should never keep a refcount on the loop */ 4909 /* cleanup watchers should never keep a refcount on the loop */
4307 ev_unref (EV_A); 4910 ev_unref (EV_A);
4308 EV_FREQUENT_CHECK; 4911 EV_FREQUENT_CHECK;
4309} 4912}
4310 4913
4311void 4914void
4312ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4915ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4313{ 4916{
4314 clear_pending (EV_A_ (W)w); 4917 clear_pending (EV_A_ (W)w);
4315 if (expect_false (!ev_is_active (w))) 4918 if (expect_false (!ev_is_active (w)))
4316 return; 4919 return;
4317 4920
… …
4331} 4934}
4332#endif 4935#endif
4333 4936
4334#if EV_ASYNC_ENABLE 4937#if EV_ASYNC_ENABLE
4335void 4938void
4336ev_async_start (EV_P_ ev_async *w) EV_THROW 4939ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4337{ 4940{
4338 if (expect_false (ev_is_active (w))) 4941 if (expect_false (ev_is_active (w)))
4339 return; 4942 return;
4340 4943
4341 w->sent = 0; 4944 w->sent = 0;
… …
4343 evpipe_init (EV_A); 4946 evpipe_init (EV_A);
4344 4947
4345 EV_FREQUENT_CHECK; 4948 EV_FREQUENT_CHECK;
4346 4949
4347 ev_start (EV_A_ (W)w, ++asynccnt); 4950 ev_start (EV_A_ (W)w, ++asynccnt);
4348 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4951 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4349 asyncs [asynccnt - 1] = w; 4952 asyncs [asynccnt - 1] = w;
4350 4953
4351 EV_FREQUENT_CHECK; 4954 EV_FREQUENT_CHECK;
4352} 4955}
4353 4956
4354void 4957void
4355ev_async_stop (EV_P_ ev_async *w) EV_THROW 4958ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4356{ 4959{
4357 clear_pending (EV_A_ (W)w); 4960 clear_pending (EV_A_ (W)w);
4358 if (expect_false (!ev_is_active (w))) 4961 if (expect_false (!ev_is_active (w)))
4359 return; 4962 return;
4360 4963
… …
4371 4974
4372 EV_FREQUENT_CHECK; 4975 EV_FREQUENT_CHECK;
4373} 4976}
4374 4977
4375void 4978void
4376ev_async_send (EV_P_ ev_async *w) EV_THROW 4979ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4377{ 4980{
4378 w->sent = 1; 4981 w->sent = 1;
4379 evpipe_write (EV_A_ &async_pending); 4982 evpipe_write (EV_A_ &async_pending);
4380} 4983}
4381#endif 4984#endif
… …
4418 5021
4419 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5022 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4420} 5023}
4421 5024
4422void 5025void
4423ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5026ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4424{ 5027{
4425 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5028 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4426
4427 if (expect_false (!once))
4428 {
4429 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4430 return;
4431 }
4432 5029
4433 once->cb = cb; 5030 once->cb = cb;
4434 once->arg = arg; 5031 once->arg = arg;
4435 5032
4436 ev_init (&once->io, once_cb_io); 5033 ev_init (&once->io, once_cb_io);
… …
4449} 5046}
4450 5047
4451/*****************************************************************************/ 5048/*****************************************************************************/
4452 5049
4453#if EV_WALK_ENABLE 5050#if EV_WALK_ENABLE
4454void ecb_cold 5051ecb_cold
5052void
4455ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5053ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4456{ 5054{
4457 int i, j; 5055 int i, j;
4458 ev_watcher_list *wl, *wn; 5056 ev_watcher_list *wl, *wn;
4459 5057
4460 if (types & (EV_IO | EV_EMBED)) 5058 if (types & (EV_IO | EV_EMBED))

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