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Comparing libev/ev.c (file contents):
Revision 1.449 by root, Sun Sep 23 21:21:58 2012 UTC vs.
Revision 1.488 by root, Fri Dec 21 06:57:09 2018 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) 2007-2018 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
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 363# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 364#endif
357 365
358#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
368#endif
369
370#ifdef __ANDROID__
371/* supposedly, android doesn't typedef fd_mask */
372# undef EV_USE_SELECT
373# define EV_USE_SELECT 0
374/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
375# undef EV_USE_CLOCK_SYSCALL
376# define EV_USE_CLOCK_SYSCALL 0
377#endif
378
379/* aix's poll.h seems to cause lots of trouble */
380#ifdef _AIX
381/* AIX has a completely broken poll.h header */
382# undef EV_USE_POLL
383# define EV_USE_POLL 0
360#endif 384#endif
361 385
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 386/* 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. */ 387/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 388#if EV_USE_CLOCK_SYSCALL
… …
372# define EV_USE_CLOCK_SYSCALL 0 396# define EV_USE_CLOCK_SYSCALL 0
373# endif 397# endif
374#endif 398#endif
375 399
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 400/* 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
383 401
384#ifndef CLOCK_MONOTONIC 402#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 403# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 404# define EV_USE_MONOTONIC 0
387#endif 405#endif
… …
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 493/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 494/* ECB.H BEGIN */
477/* 495/*
478 * libecb - http://software.schmorp.de/pkg/libecb 496 * libecb - http://software.schmorp.de/pkg/libecb
479 * 497 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 498 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 499 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 500 * All rights reserved.
483 * 501 *
484 * Redistribution and use in source and binary forms, with or without modifica- 502 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 503 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 517 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 518 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 519 * 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 520 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 521 * OF THE POSSIBILITY OF SUCH DAMAGE.
522 *
523 * Alternatively, the contents of this file may be used under the terms of
524 * the GNU General Public License ("GPL") version 2 or any later version,
525 * in which case the provisions of the GPL are applicable instead of
526 * the above. If you wish to allow the use of your version of this file
527 * only under the terms of the GPL and not to allow others to use your
528 * version of this file under the BSD license, indicate your decision
529 * by deleting the provisions above and replace them with the notice
530 * and other provisions required by the GPL. If you do not delete the
531 * provisions above, a recipient may use your version of this file under
532 * either the BSD or the GPL.
504 */ 533 */
505 534
506#ifndef ECB_H 535#ifndef ECB_H
507#define ECB_H 536#define ECB_H
508 537
509/* 16 bits major, 16 bits minor */ 538/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001 539#define ECB_VERSION 0x00010005
511 540
512#ifdef _WIN32 541#ifdef _WIN32
513 typedef signed char int8_t; 542 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 543 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 544 typedef signed short int16_t;
… …
530 #else 559 #else
531 #define ECB_PTRSIZE 4 560 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t; 561 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 562 typedef int32_t intptr_t;
534 #endif 563 #endif
535 typedef intptr_t ptrdiff_t;
536#else 564#else
537 #include <inttypes.h> 565 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU 566 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
539 #define ECB_PTRSIZE 8 567 #define ECB_PTRSIZE 8
540 #else 568 #else
541 #define ECB_PTRSIZE 4 569 #define ECB_PTRSIZE 4
570 #endif
571#endif
572
573#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575
576/* work around x32 idiocy by defining proper macros */
577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
578 #if _ILP32
579 #define ECB_AMD64_X32 1
580 #else
581 #define ECB_AMD64 1
542 #endif 582 #endif
543#endif 583#endif
544 584
545/* many compilers define _GNUC_ to some versions but then only implement 585/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions, 586 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers. 587 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so. 588 * or so.
549 * we try to detect these and simply assume they are not gcc - if they have 589 * 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. 590 * an issue with that they should have done it right in the first place.
551 */ 591 */
552#ifndef ECB_GCC_VERSION
553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 592#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
554 #define ECB_GCC_VERSION(major,minor) 0 593 #define ECB_GCC_VERSION(major,minor) 0
555 #else 594#else
556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 595 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
557 #endif 596#endif
558#endif
559 597
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 598#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
561#define ECB_C99 (__STDC_VERSION__ >= 199901L) 599
562#define ECB_C11 (__STDC_VERSION__ >= 201112L) 600#if __clang__ && defined __has_builtin
601 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
602#else
603 #define ECB_CLANG_BUILTIN(x) 0
604#endif
605
606#if __clang__ && defined __has_extension
607 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
608#else
609 #define ECB_CLANG_EXTENSION(x) 0
610#endif
611
563#define ECB_CPP (__cplusplus+0) 612#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP11 (__cplusplus >= 201103L) 613#define ECB_CPP11 (__cplusplus >= 201103L)
614#define ECB_CPP14 (__cplusplus >= 201402L)
615#define ECB_CPP17 (__cplusplus >= 201703L)
616
617#if ECB_CPP
618 #define ECB_C 0
619 #define ECB_STDC_VERSION 0
620#else
621 #define ECB_C 1
622 #define ECB_STDC_VERSION __STDC_VERSION__
623#endif
624
625#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
626#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
627#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
628
629#if ECB_CPP
630 #define ECB_EXTERN_C extern "C"
631 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
632 #define ECB_EXTERN_C_END }
633#else
634 #define ECB_EXTERN_C extern
635 #define ECB_EXTERN_C_BEG
636 #define ECB_EXTERN_C_END
637#endif
565 638
566/*****************************************************************************/ 639/*****************************************************************************/
567 640
568/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 641/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
569/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 642/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
… …
572 #define ECB_NO_SMP 1 645 #define ECB_NO_SMP 1
573#endif 646#endif
574 647
575#if ECB_NO_SMP 648#if ECB_NO_SMP
576 #define ECB_MEMORY_FENCE do { } while (0) 649 #define ECB_MEMORY_FENCE do { } while (0)
650#endif
651
652/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
653#if __xlC__ && ECB_CPP
654 #include <builtins.h>
655#endif
656
657#if 1400 <= _MSC_VER
658 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
577#endif 659#endif
578 660
579#ifndef ECB_MEMORY_FENCE 661#ifndef ECB_MEMORY_FENCE
580 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 662 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
581 #if __i386 || __i386__ 663 #if __i386 || __i386__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 665 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 667 #elif ECB_GCC_AMD64
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
587 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 671 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
590 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
673 #elif defined __ARM_ARCH_2__ \
674 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
675 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
676 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
677 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
678 || defined __ARM_ARCH_5TEJ__
679 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 680 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
592 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 681 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
682 || defined __ARM_ARCH_6T2__
593 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 684 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 685 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 686 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
597 #elif __sparc || __sparc__ 687 #elif __aarch64__
688 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
689 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
598 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
601 #elif defined __s390__ || defined __s390x__ 693 #elif defined __s390__ || defined __s390x__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
603 #elif defined __mips__ 695 #elif defined __mips__
696 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
697 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
604 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
605 #elif defined __alpha__ 699 #elif defined __alpha__
606 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 700 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607 #elif defined __hppa__ 701 #elif defined __hppa__
608 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 702 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 703 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif defined __ia64__ 704 #elif defined __ia64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 705 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
706 #elif defined __m68k__
707 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
708 #elif defined __m88k__
709 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
710 #elif defined __sh__
711 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
612 #endif 712 #endif
613 #endif 713 #endif
614#endif 714#endif
615 715
616#ifndef ECB_MEMORY_FENCE 716#ifndef ECB_MEMORY_FENCE
617 #if ECB_GCC_VERSION(4,7) 717 #if ECB_GCC_VERSION(4,7)
618 /* see comment below (stdatomic.h) about the C11 memory model. */ 718 /* see comment below (stdatomic.h) about the C11 memory model. */
619 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 719 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620 #elif defined __clang && __has_feature (cxx_atomic) 720 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
721 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
722
723 #elif ECB_CLANG_EXTENSION(c_atomic)
621 /* see comment below (stdatomic.h) about the C11 memory model. */ 724 /* see comment below (stdatomic.h) about the C11 memory model. */
622 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 725 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
726 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
727 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
728
623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 729 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
624 #define ECB_MEMORY_FENCE __sync_synchronize () 730 #define ECB_MEMORY_FENCE __sync_synchronize ()
731 #elif _MSC_VER >= 1500 /* VC++ 2008 */
732 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
733 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
734 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
735 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
736 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
625 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 737 #elif _MSC_VER >= 1400 /* VC++ 2005 */
626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 738 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
627 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 739 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
628 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 740 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 741 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
649 /* any fence other than seq_cst, which isn't very efficient for us. */ 761 /* any fence other than seq_cst, which isn't very efficient for us. */
650 /* Why that is, we don't know - either the C11 memory model is quite useless */ 762 /* Why that is, we don't know - either the C11 memory model is quite useless */
651 /* for most usages, or gcc and clang have a bug */ 763 /* for most usages, or gcc and clang have a bug */
652 /* I *currently* lean towards the latter, and inefficiently implement */ 764 /* I *currently* lean towards the latter, and inefficiently implement */
653 /* all three of ecb's fences as a seq_cst fence */ 765 /* all three of ecb's fences as a seq_cst fence */
766 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
767 /* for all __atomic_thread_fence's except seq_cst */
654 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 768 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
655 #endif 769 #endif
656#endif 770#endif
657 771
658#ifndef ECB_MEMORY_FENCE 772#ifndef ECB_MEMORY_FENCE
… …
681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 795 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
682#endif 796#endif
683 797
684/*****************************************************************************/ 798/*****************************************************************************/
685 799
686#if __cplusplus 800#if ECB_CPP
687 #define ecb_inline static inline 801 #define ecb_inline static inline
688#elif ECB_GCC_VERSION(2,5) 802#elif ECB_GCC_VERSION(2,5)
689 #define ecb_inline static __inline__ 803 #define ecb_inline static __inline__
690#elif ECB_C99 804#elif ECB_C99
691 #define ecb_inline static inline 805 #define ecb_inline static inline
… …
705 819
706#define ECB_CONCAT_(a, b) a ## b 820#define ECB_CONCAT_(a, b) a ## b
707#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 821#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
708#define ECB_STRINGIFY_(a) # a 822#define ECB_STRINGIFY_(a) # a
709#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 823#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
824#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
710 825
711#define ecb_function_ ecb_inline 826#define ecb_function_ ecb_inline
712 827
713#if ECB_GCC_VERSION(3,1) 828#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
714 #define ecb_attribute(attrlist) __attribute__(attrlist) 829 #define ecb_attribute(attrlist) __attribute__ (attrlist)
830#else
831 #define ecb_attribute(attrlist)
832#endif
833
834#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
715 #define ecb_is_constant(expr) __builtin_constant_p (expr) 835 #define ecb_is_constant(expr) __builtin_constant_p (expr)
836#else
837 /* possible C11 impl for integral types
838 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
839 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
840
841 #define ecb_is_constant(expr) 0
842#endif
843
844#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
716 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 845 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
846#else
847 #define ecb_expect(expr,value) (expr)
848#endif
849
850#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
717 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 851 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
718#else 852#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) 853 #define ecb_prefetch(addr,rw,locality)
723#endif 854#endif
724 855
725/* no emulation for ecb_decltype */ 856/* no emulation for ecb_decltype */
726#if ECB_GCC_VERSION(4,5) 857#if ECB_CPP11
858 // older implementations might have problems with decltype(x)::type, work around it
859 template<class T> struct ecb_decltype_t { typedef T type; };
727 #define ecb_decltype(x) __decltype(x) 860 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
728#elif ECB_GCC_VERSION(3,0) 861#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
729 #define ecb_decltype(x) __typeof(x) 862 #define ecb_decltype(x) __typeof__ (x)
730#endif 863#endif
731 864
865#if _MSC_VER >= 1300
866 #define ecb_deprecated __declspec (deprecated)
867#else
868 #define ecb_deprecated ecb_attribute ((__deprecated__))
869#endif
870
871#if _MSC_VER >= 1500
872 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
873#elif ECB_GCC_VERSION(4,5)
874 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
875#else
876 #define ecb_deprecated_message(msg) ecb_deprecated
877#endif
878
879#if _MSC_VER >= 1400
880 #define ecb_noinline __declspec (noinline)
881#else
732#define ecb_noinline ecb_attribute ((__noinline__)) 882 #define ecb_noinline ecb_attribute ((__noinline__))
883#endif
884
733#define ecb_unused ecb_attribute ((__unused__)) 885#define ecb_unused ecb_attribute ((__unused__))
734#define ecb_const ecb_attribute ((__const__)) 886#define ecb_const ecb_attribute ((__const__))
735#define ecb_pure ecb_attribute ((__pure__)) 887#define ecb_pure ecb_attribute ((__pure__))
736 888
737#if ECB_C11 889#if ECB_C11 || __IBMC_NORETURN
890 /* 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 891 #define ecb_noreturn _Noreturn
892#elif ECB_CPP11
893 #define ecb_noreturn [[noreturn]]
894#elif _MSC_VER >= 1200
895 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
896 #define ecb_noreturn __declspec (noreturn)
739#else 897#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__)) 898 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif 899#endif
742 900
743#if ECB_GCC_VERSION(4,3) 901#if ECB_GCC_VERSION(4,3)
… …
758/* for compatibility to the rest of the world */ 916/* for compatibility to the rest of the world */
759#define ecb_likely(expr) ecb_expect_true (expr) 917#define ecb_likely(expr) ecb_expect_true (expr)
760#define ecb_unlikely(expr) ecb_expect_false (expr) 918#define ecb_unlikely(expr) ecb_expect_false (expr)
761 919
762/* count trailing zero bits and count # of one bits */ 920/* count trailing zero bits and count # of one bits */
763#if ECB_GCC_VERSION(3,4) 921#if ECB_GCC_VERSION(3,4) \
922 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
923 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
924 && ECB_CLANG_BUILTIN(__builtin_popcount))
764 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 925 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
765 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 926 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
766 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 927 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
767 #define ecb_ctz32(x) __builtin_ctz (x) 928 #define ecb_ctz32(x) __builtin_ctz (x)
768 #define ecb_ctz64(x) __builtin_ctzll (x) 929 #define ecb_ctz64(x) __builtin_ctzll (x)
769 #define ecb_popcount32(x) __builtin_popcount (x) 930 #define ecb_popcount32(x) __builtin_popcount (x)
770 /* no popcountll */ 931 /* no popcountll */
771#else 932#else
772 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 933 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
773 ecb_function_ int 934 ecb_function_ ecb_const int
774 ecb_ctz32 (uint32_t x) 935 ecb_ctz32 (uint32_t x)
775 { 936 {
937#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
938 unsigned long r;
939 _BitScanForward (&r, x);
940 return (int)r;
941#else
776 int r = 0; 942 int r = 0;
777 943
778 x &= ~x + 1; /* this isolates the lowest bit */ 944 x &= ~x + 1; /* this isolates the lowest bit */
779 945
780#if ECB_branchless_on_i386 946#if ECB_branchless_on_i386
… …
790 if (x & 0xff00ff00) r += 8; 956 if (x & 0xff00ff00) r += 8;
791 if (x & 0xffff0000) r += 16; 957 if (x & 0xffff0000) r += 16;
792#endif 958#endif
793 959
794 return r; 960 return r;
961#endif
795 } 962 }
796 963
797 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 964 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
798 ecb_function_ int 965 ecb_function_ ecb_const int
799 ecb_ctz64 (uint64_t x) 966 ecb_ctz64 (uint64_t x)
800 { 967 {
968#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
969 unsigned long r;
970 _BitScanForward64 (&r, x);
971 return (int)r;
972#else
801 int shift = x & 0xffffffffU ? 0 : 32; 973 int shift = x & 0xffffffff ? 0 : 32;
802 return ecb_ctz32 (x >> shift) + shift; 974 return ecb_ctz32 (x >> shift) + shift;
975#endif
803 } 976 }
804 977
805 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 978 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
806 ecb_function_ int 979 ecb_function_ ecb_const int
807 ecb_popcount32 (uint32_t x) 980 ecb_popcount32 (uint32_t x)
808 { 981 {
809 x -= (x >> 1) & 0x55555555; 982 x -= (x >> 1) & 0x55555555;
810 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 983 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
811 x = ((x >> 4) + x) & 0x0f0f0f0f; 984 x = ((x >> 4) + x) & 0x0f0f0f0f;
812 x *= 0x01010101; 985 x *= 0x01010101;
813 986
814 return x >> 24; 987 return x >> 24;
815 } 988 }
816 989
817 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 990 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
818 ecb_function_ int ecb_ld32 (uint32_t x) 991 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
819 { 992 {
993#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
994 unsigned long r;
995 _BitScanReverse (&r, x);
996 return (int)r;
997#else
820 int r = 0; 998 int r = 0;
821 999
822 if (x >> 16) { x >>= 16; r += 16; } 1000 if (x >> 16) { x >>= 16; r += 16; }
823 if (x >> 8) { x >>= 8; r += 8; } 1001 if (x >> 8) { x >>= 8; r += 8; }
824 if (x >> 4) { x >>= 4; r += 4; } 1002 if (x >> 4) { x >>= 4; r += 4; }
825 if (x >> 2) { x >>= 2; r += 2; } 1003 if (x >> 2) { x >>= 2; r += 2; }
826 if (x >> 1) { r += 1; } 1004 if (x >> 1) { r += 1; }
827 1005
828 return r; 1006 return r;
1007#endif
829 } 1008 }
830 1009
831 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1010 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
832 ecb_function_ int ecb_ld64 (uint64_t x) 1011 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
833 { 1012 {
1013#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1014 unsigned long r;
1015 _BitScanReverse64 (&r, x);
1016 return (int)r;
1017#else
834 int r = 0; 1018 int r = 0;
835 1019
836 if (x >> 32) { x >>= 32; r += 32; } 1020 if (x >> 32) { x >>= 32; r += 32; }
837 1021
838 return r + ecb_ld32 (x); 1022 return r + ecb_ld32 (x);
1023#endif
839 } 1024 }
840#endif 1025#endif
841 1026
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1027ecb_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)); } 1028ecb_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; 1029ecb_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)); } 1030ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846 1031
847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1032ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1033ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
849{ 1034{
850 return ( (x * 0x0802U & 0x22110U) 1035 return ( (x * 0x0802U & 0x22110U)
851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1036 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852} 1037}
853 1038
854ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1039ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
855ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1040ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
856{ 1041{
857 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1042 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
858 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1043 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
859 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1044 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
860 x = ( x >> 8 ) | ( x << 8); 1045 x = ( x >> 8 ) | ( x << 8);
861 1046
862 return x; 1047 return x;
863} 1048}
864 1049
865ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1050ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
866ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1051ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
867{ 1052{
868 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1053 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
869 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1054 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
870 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1055 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
871 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1056 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
874 return x; 1059 return x;
875} 1060}
876 1061
877/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1062/* popcount64 is only available on 64 bit cpus as gcc builtin */
878/* so for this version we are lazy */ 1063/* so for this version we are lazy */
879ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1064ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
880ecb_function_ int 1065ecb_function_ ecb_const int
881ecb_popcount64 (uint64_t x) 1066ecb_popcount64 (uint64_t x)
882{ 1067{
883 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1068 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
884} 1069}
885 1070
886ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1071ecb_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; 1072ecb_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; 1073ecb_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; 1074ecb_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; 1075ecb_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; 1076ecb_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; 1077ecb_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; 1078ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
894 1079
895ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1080ecb_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); } 1081ecb_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); } 1082ecb_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); } 1083ecb_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); } 1084ecb_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); } 1085ecb_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); } 1086ecb_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); } 1087ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
903 1088
904#if ECB_GCC_VERSION(4,3) 1089#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1090 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1091 #define ecb_bswap16(x) __builtin_bswap16 (x)
1092 #else
905 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1093 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1094 #endif
906 #define ecb_bswap32(x) __builtin_bswap32 (x) 1095 #define ecb_bswap32(x) __builtin_bswap32 (x)
907 #define ecb_bswap64(x) __builtin_bswap64 (x) 1096 #define ecb_bswap64(x) __builtin_bswap64 (x)
1097#elif _MSC_VER
1098 #include <stdlib.h>
1099 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1100 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1101 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
908#else 1102#else
909 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1103 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
910 ecb_function_ uint16_t 1104 ecb_function_ ecb_const uint16_t
911 ecb_bswap16 (uint16_t x) 1105 ecb_bswap16 (uint16_t x)
912 { 1106 {
913 return ecb_rotl16 (x, 8); 1107 return ecb_rotl16 (x, 8);
914 } 1108 }
915 1109
916 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1110 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
917 ecb_function_ uint32_t 1111 ecb_function_ ecb_const uint32_t
918 ecb_bswap32 (uint32_t x) 1112 ecb_bswap32 (uint32_t x)
919 { 1113 {
920 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1114 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
921 } 1115 }
922 1116
923 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1117 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
924 ecb_function_ uint64_t 1118 ecb_function_ ecb_const uint64_t
925 ecb_bswap64 (uint64_t x) 1119 ecb_bswap64 (uint64_t x)
926 { 1120 {
927 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1121 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
928 } 1122 }
929#endif 1123#endif
930 1124
931#if ECB_GCC_VERSION(4,5) 1125#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
932 #define ecb_unreachable() __builtin_unreachable () 1126 #define ecb_unreachable() __builtin_unreachable ()
933#else 1127#else
934 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1128 /* this seems to work fine, but gcc always emits a warning for it :/ */
935 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1129 ecb_inline ecb_noreturn void ecb_unreachable (void);
936 ecb_inline void ecb_unreachable (void) { } 1130 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
937#endif 1131#endif
938 1132
939/* try to tell the compiler that some condition is definitely true */ 1133/* try to tell the compiler that some condition is definitely true */
940#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1134#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
941 1135
942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1136ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
943ecb_inline unsigned char 1137ecb_inline ecb_const uint32_t
944ecb_byteorder_helper (void) 1138ecb_byteorder_helper (void)
945{ 1139{
946 const uint32_t u = 0x11223344; 1140 /* the union code still generates code under pressure in gcc, */
947 return *(unsigned char *)&u; 1141 /* but less than using pointers, and always seems to */
1142 /* successfully return a constant. */
1143 /* the reason why we have this horrible preprocessor mess */
1144 /* is to avoid it in all cases, at least on common architectures */
1145 /* or when using a recent enough gcc version (>= 4.6) */
1146#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1147 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1148 #define ECB_LITTLE_ENDIAN 1
1149 return 0x44332211;
1150#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1151 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1152 #define ECB_BIG_ENDIAN 1
1153 return 0x11223344;
1154#else
1155 union
1156 {
1157 uint8_t c[4];
1158 uint32_t u;
1159 } u = { 0x11, 0x22, 0x33, 0x44 };
1160 return u.u;
1161#endif
948} 1162}
949 1163
950ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1164ecb_inline ecb_const ecb_bool ecb_big_endian (void);
951ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1165ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
952ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1166ecb_inline ecb_const ecb_bool ecb_little_endian (void);
953ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1167ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
954 1168
955#if ECB_GCC_VERSION(3,0) || ECB_C99 1169#if ECB_GCC_VERSION(3,0) || ECB_C99
956 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1170 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
957#else 1171#else
958 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1172 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
959#endif 1173#endif
960 1174
961#if __cplusplus 1175#if ECB_CPP
962 template<typename T> 1176 template<typename T>
963 static inline T ecb_div_rd (T val, T div) 1177 static inline T ecb_div_rd (T val, T div)
964 { 1178 {
965 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1179 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
966 } 1180 }
… …
983 } 1197 }
984#else 1198#else
985 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1199 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
986#endif 1200#endif
987 1201
1202ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1203ecb_function_ ecb_const uint32_t
1204ecb_binary16_to_binary32 (uint32_t x)
1205{
1206 unsigned int s = (x & 0x8000) << (31 - 15);
1207 int e = (x >> 10) & 0x001f;
1208 unsigned int m = x & 0x03ff;
1209
1210 if (ecb_expect_false (e == 31))
1211 /* infinity or NaN */
1212 e = 255 - (127 - 15);
1213 else if (ecb_expect_false (!e))
1214 {
1215 if (ecb_expect_true (!m))
1216 /* zero, handled by code below by forcing e to 0 */
1217 e = 0 - (127 - 15);
1218 else
1219 {
1220 /* subnormal, renormalise */
1221 unsigned int s = 10 - ecb_ld32 (m);
1222
1223 m = (m << s) & 0x3ff; /* mask implicit bit */
1224 e -= s - 1;
1225 }
1226 }
1227
1228 /* e and m now are normalised, or zero, (or inf or nan) */
1229 e += 127 - 15;
1230
1231 return s | (e << 23) | (m << (23 - 10));
1232}
1233
1234ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1235ecb_function_ ecb_const uint16_t
1236ecb_binary32_to_binary16 (uint32_t x)
1237{
1238 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1239 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1240 unsigned int m = x & 0x007fffff;
1241
1242 x &= 0x7fffffff;
1243
1244 /* if it's within range of binary16 normals, use fast path */
1245 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1246 {
1247 /* mantissa round-to-even */
1248 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1249
1250 /* handle overflow */
1251 if (ecb_expect_false (m >= 0x00800000))
1252 {
1253 m >>= 1;
1254 e += 1;
1255 }
1256
1257 return s | (e << 10) | (m >> (23 - 10));
1258 }
1259
1260 /* handle large numbers and infinity */
1261 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1262 return s | 0x7c00;
1263
1264 /* handle zero, subnormals and small numbers */
1265 if (ecb_expect_true (x < 0x38800000))
1266 {
1267 /* zero */
1268 if (ecb_expect_true (!x))
1269 return s;
1270
1271 /* handle subnormals */
1272
1273 /* too small, will be zero */
1274 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1275 return s;
1276
1277 m |= 0x00800000; /* make implicit bit explicit */
1278
1279 /* very tricky - we need to round to the nearest e (+10) bit value */
1280 {
1281 unsigned int bits = 14 - e;
1282 unsigned int half = (1 << (bits - 1)) - 1;
1283 unsigned int even = (m >> bits) & 1;
1284
1285 /* if this overflows, we will end up with a normalised number */
1286 m = (m + half + even) >> bits;
1287 }
1288
1289 return s | m;
1290 }
1291
1292 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1293 m >>= 13;
1294
1295 return s | 0x7c00 | m | !m;
1296}
1297
1298/*******************************************************************************/
1299/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1300
1301/* basically, everything uses "ieee pure-endian" floating point numbers */
1302/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1303#if 0 \
1304 || __i386 || __i386__ \
1305 || ECB_GCC_AMD64 \
1306 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1307 || defined __s390__ || defined __s390x__ \
1308 || defined __mips__ \
1309 || defined __alpha__ \
1310 || defined __hppa__ \
1311 || defined __ia64__ \
1312 || defined __m68k__ \
1313 || defined __m88k__ \
1314 || defined __sh__ \
1315 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1316 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1317 || defined __aarch64__
1318 #define ECB_STDFP 1
1319 #include <string.h> /* for memcpy */
1320#else
1321 #define ECB_STDFP 0
1322#endif
1323
1324#ifndef ECB_NO_LIBM
1325
1326 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1327
1328 /* only the oldest of old doesn't have this one. solaris. */
1329 #ifdef INFINITY
1330 #define ECB_INFINITY INFINITY
1331 #else
1332 #define ECB_INFINITY HUGE_VAL
1333 #endif
1334
1335 #ifdef NAN
1336 #define ECB_NAN NAN
1337 #else
1338 #define ECB_NAN ECB_INFINITY
1339 #endif
1340
1341 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1342 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1343 #define ecb_frexpf(x,e) frexpf ((x), (e))
1344 #else
1345 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1346 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1347 #endif
1348
1349 /* convert a float to ieee single/binary32 */
1350 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1351 ecb_function_ ecb_const uint32_t
1352 ecb_float_to_binary32 (float x)
1353 {
1354 uint32_t r;
1355
1356 #if ECB_STDFP
1357 memcpy (&r, &x, 4);
1358 #else
1359 /* slow emulation, works for anything but -0 */
1360 uint32_t m;
1361 int e;
1362
1363 if (x == 0e0f ) return 0x00000000U;
1364 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1365 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1366 if (x != x ) return 0x7fbfffffU;
1367
1368 m = ecb_frexpf (x, &e) * 0x1000000U;
1369
1370 r = m & 0x80000000U;
1371
1372 if (r)
1373 m = -m;
1374
1375 if (e <= -126)
1376 {
1377 m &= 0xffffffU;
1378 m >>= (-125 - e);
1379 e = -126;
1380 }
1381
1382 r |= (e + 126) << 23;
1383 r |= m & 0x7fffffU;
1384 #endif
1385
1386 return r;
1387 }
1388
1389 /* converts an ieee single/binary32 to a float */
1390 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1391 ecb_function_ ecb_const float
1392 ecb_binary32_to_float (uint32_t x)
1393 {
1394 float r;
1395
1396 #if ECB_STDFP
1397 memcpy (&r, &x, 4);
1398 #else
1399 /* emulation, only works for normals and subnormals and +0 */
1400 int neg = x >> 31;
1401 int e = (x >> 23) & 0xffU;
1402
1403 x &= 0x7fffffU;
1404
1405 if (e)
1406 x |= 0x800000U;
1407 else
1408 e = 1;
1409
1410 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1411 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1412
1413 r = neg ? -r : r;
1414 #endif
1415
1416 return r;
1417 }
1418
1419 /* convert a double to ieee double/binary64 */
1420 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1421 ecb_function_ ecb_const uint64_t
1422 ecb_double_to_binary64 (double x)
1423 {
1424 uint64_t r;
1425
1426 #if ECB_STDFP
1427 memcpy (&r, &x, 8);
1428 #else
1429 /* slow emulation, works for anything but -0 */
1430 uint64_t m;
1431 int e;
1432
1433 if (x == 0e0 ) return 0x0000000000000000U;
1434 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1435 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1436 if (x != x ) return 0X7ff7ffffffffffffU;
1437
1438 m = frexp (x, &e) * 0x20000000000000U;
1439
1440 r = m & 0x8000000000000000;;
1441
1442 if (r)
1443 m = -m;
1444
1445 if (e <= -1022)
1446 {
1447 m &= 0x1fffffffffffffU;
1448 m >>= (-1021 - e);
1449 e = -1022;
1450 }
1451
1452 r |= ((uint64_t)(e + 1022)) << 52;
1453 r |= m & 0xfffffffffffffU;
1454 #endif
1455
1456 return r;
1457 }
1458
1459 /* converts an ieee double/binary64 to a double */
1460 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1461 ecb_function_ ecb_const double
1462 ecb_binary64_to_double (uint64_t x)
1463 {
1464 double r;
1465
1466 #if ECB_STDFP
1467 memcpy (&r, &x, 8);
1468 #else
1469 /* emulation, only works for normals and subnormals and +0 */
1470 int neg = x >> 63;
1471 int e = (x >> 52) & 0x7ffU;
1472
1473 x &= 0xfffffffffffffU;
1474
1475 if (e)
1476 x |= 0x10000000000000U;
1477 else
1478 e = 1;
1479
1480 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1481 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1482
1483 r = neg ? -r : r;
1484 #endif
1485
1486 return r;
1487 }
1488
1489 /* convert a float to ieee half/binary16 */
1490 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1491 ecb_function_ ecb_const uint16_t
1492 ecb_float_to_binary16 (float x)
1493 {
1494 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1495 }
1496
1497 /* convert an ieee half/binary16 to float */
1498 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1499 ecb_function_ ecb_const float
1500 ecb_binary16_to_float (uint16_t x)
1501 {
1502 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1503 }
1504
1505#endif
1506
988#endif 1507#endif
989 1508
990/* ECB.H END */ 1509/* ECB.H END */
991 1510
992#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1511#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1013#define inline_size ecb_inline 1532#define inline_size ecb_inline
1014 1533
1015#if EV_FEATURE_CODE 1534#if EV_FEATURE_CODE
1016# define inline_speed ecb_inline 1535# define inline_speed ecb_inline
1017#else 1536#else
1018# define inline_speed static noinline 1537# define inline_speed noinline static
1019#endif 1538#endif
1020 1539
1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1540#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1022 1541
1023#if EV_MINPRI == EV_MAXPRI 1542#if EV_MINPRI == EV_MAXPRI
… …
1070#else 1589#else
1071 1590
1072#include <float.h> 1591#include <float.h>
1073 1592
1074/* a floor() replacement function, should be independent of ev_tstamp type */ 1593/* a floor() replacement function, should be independent of ev_tstamp type */
1594noinline
1075static ev_tstamp noinline 1595static ev_tstamp
1076ev_floor (ev_tstamp v) 1596ev_floor (ev_tstamp v)
1077{ 1597{
1078 /* the choice of shift factor is not terribly important */ 1598 /* the choice of shift factor is not terribly important */
1079#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1599#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1080 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1600 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1112 1632
1113#ifdef __linux 1633#ifdef __linux
1114# include <sys/utsname.h> 1634# include <sys/utsname.h>
1115#endif 1635#endif
1116 1636
1117static unsigned int noinline ecb_cold 1637noinline ecb_cold
1638static unsigned int
1118ev_linux_version (void) 1639ev_linux_version (void)
1119{ 1640{
1120#ifdef __linux 1641#ifdef __linux
1121 unsigned int v = 0; 1642 unsigned int v = 0;
1122 struct utsname buf; 1643 struct utsname buf;
… …
1151} 1672}
1152 1673
1153/*****************************************************************************/ 1674/*****************************************************************************/
1154 1675
1155#if EV_AVOID_STDIO 1676#if EV_AVOID_STDIO
1156static void noinline ecb_cold 1677noinline ecb_cold
1678static void
1157ev_printerr (const char *msg) 1679ev_printerr (const char *msg)
1158{ 1680{
1159 write (STDERR_FILENO, msg, strlen (msg)); 1681 write (STDERR_FILENO, msg, strlen (msg));
1160} 1682}
1161#endif 1683#endif
1162 1684
1163static void (*syserr_cb)(const char *msg) EV_THROW; 1685static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1164 1686
1165void ecb_cold 1687ecb_cold
1688void
1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1689ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1167{ 1690{
1168 syserr_cb = cb; 1691 syserr_cb = cb;
1169} 1692}
1170 1693
1171static void noinline ecb_cold 1694noinline ecb_cold
1695static void
1172ev_syserr (const char *msg) 1696ev_syserr (const char *msg)
1173{ 1697{
1174 if (!msg) 1698 if (!msg)
1175 msg = "(libev) system error"; 1699 msg = "(libev) system error";
1176 1700
… …
1189 abort (); 1713 abort ();
1190 } 1714 }
1191} 1715}
1192 1716
1193static void * 1717static void *
1194ev_realloc_emul (void *ptr, long size) EV_THROW 1718ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1195{ 1719{
1196 /* some systems, notably openbsd and darwin, fail to properly 1720 /* some systems, notably openbsd and darwin, fail to properly
1197 * implement realloc (x, 0) (as required by both ansi c-89 and 1721 * implement realloc (x, 0) (as required by both ansi c-89 and
1198 * the single unix specification, so work around them here. 1722 * the single unix specification, so work around them here.
1199 * recently, also (at least) fedora and debian started breaking it, 1723 * recently, also (at least) fedora and debian started breaking it,
… …
1205 1729
1206 free (ptr); 1730 free (ptr);
1207 return 0; 1731 return 0;
1208} 1732}
1209 1733
1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1734static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1211 1735
1212void ecb_cold 1736ecb_cold
1737void
1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1738ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1214{ 1739{
1215 alloc = cb; 1740 alloc = cb;
1216} 1741}
1217 1742
1218inline_speed void * 1743inline_speed void *
… …
1335 1860
1336/*****************************************************************************/ 1861/*****************************************************************************/
1337 1862
1338#ifndef EV_HAVE_EV_TIME 1863#ifndef EV_HAVE_EV_TIME
1339ev_tstamp 1864ev_tstamp
1340ev_time (void) EV_THROW 1865ev_time (void) EV_NOEXCEPT
1341{ 1866{
1342#if EV_USE_REALTIME 1867#if EV_USE_REALTIME
1343 if (expect_true (have_realtime)) 1868 if (expect_true (have_realtime))
1344 { 1869 {
1345 struct timespec ts; 1870 struct timespec ts;
… …
1369 return ev_time (); 1894 return ev_time ();
1370} 1895}
1371 1896
1372#if EV_MULTIPLICITY 1897#if EV_MULTIPLICITY
1373ev_tstamp 1898ev_tstamp
1374ev_now (EV_P) EV_THROW 1899ev_now (EV_P) EV_NOEXCEPT
1375{ 1900{
1376 return ev_rt_now; 1901 return ev_rt_now;
1377} 1902}
1378#endif 1903#endif
1379 1904
1380void 1905void
1381ev_sleep (ev_tstamp delay) EV_THROW 1906ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1382{ 1907{
1383 if (delay > 0.) 1908 if (delay > 0.)
1384 { 1909 {
1385#if EV_USE_NANOSLEEP 1910#if EV_USE_NANOSLEEP
1386 struct timespec ts; 1911 struct timespec ts;
1387 1912
1388 EV_TS_SET (ts, delay); 1913 EV_TS_SET (ts, delay);
1389 nanosleep (&ts, 0); 1914 nanosleep (&ts, 0);
1390#elif defined _WIN32 1915#elif defined _WIN32
1916 /* maybe this should round up, as ms is very low resolution */
1917 /* compared to select (µs) or nanosleep (ns) */
1391 Sleep ((unsigned long)(delay * 1e3)); 1918 Sleep ((unsigned long)(delay * 1e3));
1392#else 1919#else
1393 struct timeval tv; 1920 struct timeval tv;
1394 1921
1395 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1922 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1426 } 1953 }
1427 1954
1428 return ncur; 1955 return ncur;
1429} 1956}
1430 1957
1431static void * noinline ecb_cold 1958noinline ecb_cold
1959static void *
1432array_realloc (int elem, void *base, int *cur, int cnt) 1960array_realloc (int elem, void *base, int *cur, int cnt)
1433{ 1961{
1434 *cur = array_nextsize (elem, *cur, cnt); 1962 *cur = array_nextsize (elem, *cur, cnt);
1435 return ev_realloc (base, elem * *cur); 1963 return ev_realloc (base, elem * *cur);
1436} 1964}
… …
1439 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1967 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1440 1968
1441#define array_needsize(type,base,cur,cnt,init) \ 1969#define array_needsize(type,base,cur,cnt,init) \
1442 if (expect_false ((cnt) > (cur))) \ 1970 if (expect_false ((cnt) > (cur))) \
1443 { \ 1971 { \
1444 int ecb_unused ocur_ = (cur); \ 1972 ecb_unused int ocur_ = (cur); \
1445 (base) = (type *)array_realloc \ 1973 (base) = (type *)array_realloc \
1446 (sizeof (type), (base), &(cur), (cnt)); \ 1974 (sizeof (type), (base), &(cur), (cnt)); \
1447 init ((base) + (ocur_), (cur) - ocur_); \ 1975 init ((base) + (ocur_), (cur) - ocur_); \
1448 } 1976 }
1449 1977
… …
1461 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1989 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1462 1990
1463/*****************************************************************************/ 1991/*****************************************************************************/
1464 1992
1465/* dummy callback for pending events */ 1993/* dummy callback for pending events */
1466static void noinline 1994noinline
1995static void
1467pendingcb (EV_P_ ev_prepare *w, int revents) 1996pendingcb (EV_P_ ev_prepare *w, int revents)
1468{ 1997{
1469} 1998}
1470 1999
1471void noinline 2000noinline
2001void
1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2002ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1473{ 2003{
1474 W w_ = (W)w; 2004 W w_ = (W)w;
1475 int pri = ABSPRI (w_); 2005 int pri = ABSPRI (w_);
1476 2006
1477 if (expect_false (w_->pending)) 2007 if (expect_false (w_->pending))
… …
1538 if (expect_true (!anfd->reify)) 2068 if (expect_true (!anfd->reify))
1539 fd_event_nocheck (EV_A_ fd, revents); 2069 fd_event_nocheck (EV_A_ fd, revents);
1540} 2070}
1541 2071
1542void 2072void
1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2073ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1544{ 2074{
1545 if (fd >= 0 && fd < anfdmax) 2075 if (fd >= 0 && fd < anfdmax)
1546 fd_event_nocheck (EV_A_ fd, revents); 2076 fd_event_nocheck (EV_A_ fd, revents);
1547} 2077}
1548 2078
… …
1606 2136
1607 fdchangecnt = 0; 2137 fdchangecnt = 0;
1608} 2138}
1609 2139
1610/* something about the given fd changed */ 2140/* something about the given fd changed */
1611inline_size void 2141inline_size
2142void
1612fd_change (EV_P_ int fd, int flags) 2143fd_change (EV_P_ int fd, int flags)
1613{ 2144{
1614 unsigned char reify = anfds [fd].reify; 2145 unsigned char reify = anfds [fd].reify;
1615 anfds [fd].reify |= flags; 2146 anfds [fd].reify |= flags;
1616 2147
… …
1621 fdchanges [fdchangecnt - 1] = fd; 2152 fdchanges [fdchangecnt - 1] = fd;
1622 } 2153 }
1623} 2154}
1624 2155
1625/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2156/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1626inline_speed void ecb_cold 2157inline_speed ecb_cold void
1627fd_kill (EV_P_ int fd) 2158fd_kill (EV_P_ int fd)
1628{ 2159{
1629 ev_io *w; 2160 ev_io *w;
1630 2161
1631 while ((w = (ev_io *)anfds [fd].head)) 2162 while ((w = (ev_io *)anfds [fd].head))
… …
1634 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2165 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1635 } 2166 }
1636} 2167}
1637 2168
1638/* check whether the given fd is actually valid, for error recovery */ 2169/* check whether the given fd is actually valid, for error recovery */
1639inline_size int ecb_cold 2170inline_size ecb_cold int
1640fd_valid (int fd) 2171fd_valid (int fd)
1641{ 2172{
1642#ifdef _WIN32 2173#ifdef _WIN32
1643 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2174 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1644#else 2175#else
1645 return fcntl (fd, F_GETFD) != -1; 2176 return fcntl (fd, F_GETFD) != -1;
1646#endif 2177#endif
1647} 2178}
1648 2179
1649/* called on EBADF to verify fds */ 2180/* called on EBADF to verify fds */
1650static void noinline ecb_cold 2181noinline ecb_cold
2182static void
1651fd_ebadf (EV_P) 2183fd_ebadf (EV_P)
1652{ 2184{
1653 int fd; 2185 int fd;
1654 2186
1655 for (fd = 0; fd < anfdmax; ++fd) 2187 for (fd = 0; fd < anfdmax; ++fd)
… …
1657 if (!fd_valid (fd) && errno == EBADF) 2189 if (!fd_valid (fd) && errno == EBADF)
1658 fd_kill (EV_A_ fd); 2190 fd_kill (EV_A_ fd);
1659} 2191}
1660 2192
1661/* called on ENOMEM in select/poll to kill some fds and retry */ 2193/* called on ENOMEM in select/poll to kill some fds and retry */
1662static void noinline ecb_cold 2194noinline ecb_cold
2195static void
1663fd_enomem (EV_P) 2196fd_enomem (EV_P)
1664{ 2197{
1665 int fd; 2198 int fd;
1666 2199
1667 for (fd = anfdmax; fd--; ) 2200 for (fd = anfdmax; fd--; )
… …
1671 break; 2204 break;
1672 } 2205 }
1673} 2206}
1674 2207
1675/* usually called after fork if backend needs to re-arm all fds from scratch */ 2208/* usually called after fork if backend needs to re-arm all fds from scratch */
1676static void noinline 2209noinline
2210static void
1677fd_rearm_all (EV_P) 2211fd_rearm_all (EV_P)
1678{ 2212{
1679 int fd; 2213 int fd;
1680 2214
1681 for (fd = 0; fd < anfdmax; ++fd) 2215 for (fd = 0; fd < anfdmax; ++fd)
… …
1862 2396
1863/*****************************************************************************/ 2397/*****************************************************************************/
1864 2398
1865#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1866 2400
1867static void noinline ecb_cold 2401noinline ecb_cold
2402static void
1868evpipe_init (EV_P) 2403evpipe_init (EV_P)
1869{ 2404{
1870 if (!ev_is_active (&pipe_w)) 2405 if (!ev_is_active (&pipe_w))
1871 { 2406 {
1872 int fds [2]; 2407 int fds [2];
… …
1883 while (pipe (fds)) 2418 while (pipe (fds))
1884 ev_syserr ("(libev) error creating signal/async pipe"); 2419 ev_syserr ("(libev) error creating signal/async pipe");
1885 2420
1886 fd_intern (fds [0]); 2421 fd_intern (fds [0]);
1887 } 2422 }
1888
1889 fd_intern (fds [1]);
1890 2423
1891 evpipe [0] = fds [0]; 2424 evpipe [0] = fds [0];
1892 2425
1893 if (evpipe [1] < 0) 2426 if (evpipe [1] < 0)
1894 evpipe [1] = fds [1]; /* first call, set write fd */ 2427 evpipe [1] = fds [1]; /* first call, set write fd */
… …
1901 2434
1902 dup2 (fds [1], evpipe [1]); 2435 dup2 (fds [1], evpipe [1]);
1903 close (fds [1]); 2436 close (fds [1]);
1904 } 2437 }
1905 2438
2439 fd_intern (evpipe [1]);
2440
1906 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2441 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1907 ev_io_start (EV_A_ &pipe_w); 2442 ev_io_start (EV_A_ &pipe_w);
1908 ev_unref (EV_A); /* watcher should not keep loop alive */ 2443 ev_unref (EV_A); /* watcher should not keep loop alive */
1909 } 2444 }
1910} 2445}
… …
1943#endif 2478#endif
1944 { 2479 {
1945#ifdef _WIN32 2480#ifdef _WIN32
1946 WSABUF buf; 2481 WSABUF buf;
1947 DWORD sent; 2482 DWORD sent;
1948 buf.buf = &buf; 2483 buf.buf = (char *)&buf;
1949 buf.len = 1; 2484 buf.len = 1;
1950 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2485 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1951#else 2486#else
1952 write (evpipe [1], &(evpipe [1]), 1); 2487 write (evpipe [1], &(evpipe [1]), 1);
1953#endif 2488#endif
… …
2025} 2560}
2026 2561
2027/*****************************************************************************/ 2562/*****************************************************************************/
2028 2563
2029void 2564void
2030ev_feed_signal (int signum) EV_THROW 2565ev_feed_signal (int signum) EV_NOEXCEPT
2031{ 2566{
2032#if EV_MULTIPLICITY 2567#if EV_MULTIPLICITY
2568 EV_P;
2033 ECB_MEMORY_FENCE_ACQUIRE; 2569 ECB_MEMORY_FENCE_ACQUIRE;
2034 EV_P = signals [signum - 1].loop; 2570 EV_A = signals [signum - 1].loop;
2035 2571
2036 if (!EV_A) 2572 if (!EV_A)
2037 return; 2573 return;
2038#endif 2574#endif
2039 2575
… …
2049#endif 2585#endif
2050 2586
2051 ev_feed_signal (signum); 2587 ev_feed_signal (signum);
2052} 2588}
2053 2589
2054void noinline 2590noinline
2591void
2055ev_feed_signal_event (EV_P_ int signum) EV_THROW 2592ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2056{ 2593{
2057 WL w; 2594 WL w;
2058 2595
2059 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2596 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2060 return; 2597 return;
… …
2176#endif 2713#endif
2177#if EV_USE_SELECT 2714#if EV_USE_SELECT
2178# include "ev_select.c" 2715# include "ev_select.c"
2179#endif 2716#endif
2180 2717
2181int ecb_cold 2718ecb_cold int
2182ev_version_major (void) EV_THROW 2719ev_version_major (void) EV_NOEXCEPT
2183{ 2720{
2184 return EV_VERSION_MAJOR; 2721 return EV_VERSION_MAJOR;
2185} 2722}
2186 2723
2187int ecb_cold 2724ecb_cold int
2188ev_version_minor (void) EV_THROW 2725ev_version_minor (void) EV_NOEXCEPT
2189{ 2726{
2190 return EV_VERSION_MINOR; 2727 return EV_VERSION_MINOR;
2191} 2728}
2192 2729
2193/* return true if we are running with elevated privileges and should ignore env variables */ 2730/* return true if we are running with elevated privileges and should ignore env variables */
2194int inline_size ecb_cold 2731inline_size ecb_cold int
2195enable_secure (void) 2732enable_secure (void)
2196{ 2733{
2197#ifdef _WIN32 2734#ifdef _WIN32
2198 return 0; 2735 return 0;
2199#else 2736#else
2200 return getuid () != geteuid () 2737 return getuid () != geteuid ()
2201 || getgid () != getegid (); 2738 || getgid () != getegid ();
2202#endif 2739#endif
2203} 2740}
2204 2741
2205unsigned int ecb_cold 2742ecb_cold
2743unsigned int
2206ev_supported_backends (void) EV_THROW 2744ev_supported_backends (void) EV_NOEXCEPT
2207{ 2745{
2208 unsigned int flags = 0; 2746 unsigned int flags = 0;
2209 2747
2210 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2748 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2211 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2749 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2214 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2752 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2215 2753
2216 return flags; 2754 return flags;
2217} 2755}
2218 2756
2219unsigned int ecb_cold 2757ecb_cold
2758unsigned int
2220ev_recommended_backends (void) EV_THROW 2759ev_recommended_backends (void) EV_NOEXCEPT
2221{ 2760{
2222 unsigned int flags = ev_supported_backends (); 2761 unsigned int flags = ev_supported_backends ();
2223 2762
2224#ifndef __NetBSD__ 2763#ifndef __NetBSD__
2225 /* kqueue is borked on everything but netbsd apparently */ 2764 /* kqueue is borked on everything but netbsd apparently */
… …
2236#endif 2775#endif
2237 2776
2238 return flags; 2777 return flags;
2239} 2778}
2240 2779
2241unsigned int ecb_cold 2780ecb_cold
2781unsigned int
2242ev_embeddable_backends (void) EV_THROW 2782ev_embeddable_backends (void) EV_NOEXCEPT
2243{ 2783{
2244 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2784 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2245 2785
2246 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2786 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2247 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2787 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2249 2789
2250 return flags; 2790 return flags;
2251} 2791}
2252 2792
2253unsigned int 2793unsigned int
2254ev_backend (EV_P) EV_THROW 2794ev_backend (EV_P) EV_NOEXCEPT
2255{ 2795{
2256 return backend; 2796 return backend;
2257} 2797}
2258 2798
2259#if EV_FEATURE_API 2799#if EV_FEATURE_API
2260unsigned int 2800unsigned int
2261ev_iteration (EV_P) EV_THROW 2801ev_iteration (EV_P) EV_NOEXCEPT
2262{ 2802{
2263 return loop_count; 2803 return loop_count;
2264} 2804}
2265 2805
2266unsigned int 2806unsigned int
2267ev_depth (EV_P) EV_THROW 2807ev_depth (EV_P) EV_NOEXCEPT
2268{ 2808{
2269 return loop_depth; 2809 return loop_depth;
2270} 2810}
2271 2811
2272void 2812void
2273ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2813ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2274{ 2814{
2275 io_blocktime = interval; 2815 io_blocktime = interval;
2276} 2816}
2277 2817
2278void 2818void
2279ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2819ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2280{ 2820{
2281 timeout_blocktime = interval; 2821 timeout_blocktime = interval;
2282} 2822}
2283 2823
2284void 2824void
2285ev_set_userdata (EV_P_ void *data) EV_THROW 2825ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2286{ 2826{
2287 userdata = data; 2827 userdata = data;
2288} 2828}
2289 2829
2290void * 2830void *
2291ev_userdata (EV_P) EV_THROW 2831ev_userdata (EV_P) EV_NOEXCEPT
2292{ 2832{
2293 return userdata; 2833 return userdata;
2294} 2834}
2295 2835
2296void 2836void
2297ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2837ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2298{ 2838{
2299 invoke_cb = invoke_pending_cb; 2839 invoke_cb = invoke_pending_cb;
2300} 2840}
2301 2841
2302void 2842void
2303ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2843ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2304{ 2844{
2305 release_cb = release; 2845 release_cb = release;
2306 acquire_cb = acquire; 2846 acquire_cb = acquire;
2307} 2847}
2308#endif 2848#endif
2309 2849
2310/* initialise a loop structure, must be zero-initialised */ 2850/* initialise a loop structure, must be zero-initialised */
2311static void noinline ecb_cold 2851noinline ecb_cold
2852static void
2312loop_init (EV_P_ unsigned int flags) EV_THROW 2853loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2313{ 2854{
2314 if (!backend) 2855 if (!backend)
2315 { 2856 {
2316 origflags = flags; 2857 origflags = flags;
2317 2858
… …
2403#endif 2944#endif
2404 } 2945 }
2405} 2946}
2406 2947
2407/* free up a loop structure */ 2948/* free up a loop structure */
2408void ecb_cold 2949ecb_cold
2950void
2409ev_loop_destroy (EV_P) 2951ev_loop_destroy (EV_P)
2410{ 2952{
2411 int i; 2953 int i;
2412 2954
2413#if EV_MULTIPLICITY 2955#if EV_MULTIPLICITY
… …
2534#if EV_USE_INOTIFY 3076#if EV_USE_INOTIFY
2535 infy_fork (EV_A); 3077 infy_fork (EV_A);
2536#endif 3078#endif
2537 3079
2538#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3080#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2539 if (ev_is_active (&pipe_w)) 3081 if (ev_is_active (&pipe_w) && postfork != 2)
2540 { 3082 {
2541 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3083 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2542 3084
2543 ev_ref (EV_A); 3085 ev_ref (EV_A);
2544 ev_io_stop (EV_A_ &pipe_w); 3086 ev_io_stop (EV_A_ &pipe_w);
… …
2555 postfork = 0; 3097 postfork = 0;
2556} 3098}
2557 3099
2558#if EV_MULTIPLICITY 3100#if EV_MULTIPLICITY
2559 3101
3102ecb_cold
2560struct ev_loop * ecb_cold 3103struct ev_loop *
2561ev_loop_new (unsigned int flags) EV_THROW 3104ev_loop_new (unsigned int flags) EV_NOEXCEPT
2562{ 3105{
2563 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3106 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2564 3107
2565 memset (EV_A, 0, sizeof (struct ev_loop)); 3108 memset (EV_A, 0, sizeof (struct ev_loop));
2566 loop_init (EV_A_ flags); 3109 loop_init (EV_A_ flags);
… …
2573} 3116}
2574 3117
2575#endif /* multiplicity */ 3118#endif /* multiplicity */
2576 3119
2577#if EV_VERIFY 3120#if EV_VERIFY
2578static void noinline ecb_cold 3121noinline ecb_cold
3122static void
2579verify_watcher (EV_P_ W w) 3123verify_watcher (EV_P_ W w)
2580{ 3124{
2581 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3125 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2582 3126
2583 if (w->pending) 3127 if (w->pending)
2584 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3128 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2585} 3129}
2586 3130
2587static void noinline ecb_cold 3131noinline ecb_cold
3132static void
2588verify_heap (EV_P_ ANHE *heap, int N) 3133verify_heap (EV_P_ ANHE *heap, int N)
2589{ 3134{
2590 int i; 3135 int i;
2591 3136
2592 for (i = HEAP0; i < N + HEAP0; ++i) 3137 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2597 3142
2598 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3143 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2599 } 3144 }
2600} 3145}
2601 3146
2602static void noinline ecb_cold 3147noinline ecb_cold
3148static void
2603array_verify (EV_P_ W *ws, int cnt) 3149array_verify (EV_P_ W *ws, int cnt)
2604{ 3150{
2605 while (cnt--) 3151 while (cnt--)
2606 { 3152 {
2607 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3153 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2610} 3156}
2611#endif 3157#endif
2612 3158
2613#if EV_FEATURE_API 3159#if EV_FEATURE_API
2614void ecb_cold 3160void ecb_cold
2615ev_verify (EV_P) EV_THROW 3161ev_verify (EV_P) EV_NOEXCEPT
2616{ 3162{
2617#if EV_VERIFY 3163#if EV_VERIFY
2618 int i; 3164 int i;
2619 WL w, w2; 3165 WL w, w2;
2620 3166
… …
2696#endif 3242#endif
2697} 3243}
2698#endif 3244#endif
2699 3245
2700#if EV_MULTIPLICITY 3246#if EV_MULTIPLICITY
3247ecb_cold
2701struct ev_loop * ecb_cold 3248struct ev_loop *
2702#else 3249#else
2703int 3250int
2704#endif 3251#endif
2705ev_default_loop (unsigned int flags) EV_THROW 3252ev_default_loop (unsigned int flags) EV_NOEXCEPT
2706{ 3253{
2707 if (!ev_default_loop_ptr) 3254 if (!ev_default_loop_ptr)
2708 { 3255 {
2709#if EV_MULTIPLICITY 3256#if EV_MULTIPLICITY
2710 EV_P = ev_default_loop_ptr = &default_loop_struct; 3257 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2729 3276
2730 return ev_default_loop_ptr; 3277 return ev_default_loop_ptr;
2731} 3278}
2732 3279
2733void 3280void
2734ev_loop_fork (EV_P) EV_THROW 3281ev_loop_fork (EV_P) EV_NOEXCEPT
2735{ 3282{
2736 postfork = 1; 3283 postfork = 1;
2737} 3284}
2738 3285
2739/*****************************************************************************/ 3286/*****************************************************************************/
… …
2743{ 3290{
2744 EV_CB_INVOKE ((W)w, revents); 3291 EV_CB_INVOKE ((W)w, revents);
2745} 3292}
2746 3293
2747unsigned int 3294unsigned int
2748ev_pending_count (EV_P) EV_THROW 3295ev_pending_count (EV_P) EV_NOEXCEPT
2749{ 3296{
2750 int pri; 3297 int pri;
2751 unsigned int count = 0; 3298 unsigned int count = 0;
2752 3299
2753 for (pri = NUMPRI; pri--; ) 3300 for (pri = NUMPRI; pri--; )
2754 count += pendingcnt [pri]; 3301 count += pendingcnt [pri];
2755 3302
2756 return count; 3303 return count;
2757} 3304}
2758 3305
2759void noinline 3306noinline
3307void
2760ev_invoke_pending (EV_P) 3308ev_invoke_pending (EV_P)
2761{ 3309{
2762 pendingpri = NUMPRI; 3310 pendingpri = NUMPRI;
2763 3311
2764 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3312 do
2765 { 3313 {
2766 --pendingpri; 3314 --pendingpri;
2767 3315
3316 /* pendingpri possibly gets modified in the inner loop */
2768 while (pendingcnt [pendingpri]) 3317 while (pendingcnt [pendingpri])
2769 { 3318 {
2770 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3319 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2771 3320
2772 p->w->pending = 0; 3321 p->w->pending = 0;
2773 EV_CB_INVOKE (p->w, p->events); 3322 EV_CB_INVOKE (p->w, p->events);
2774 EV_FREQUENT_CHECK; 3323 EV_FREQUENT_CHECK;
2775 } 3324 }
2776 } 3325 }
3326 while (pendingpri);
2777} 3327}
2778 3328
2779#if EV_IDLE_ENABLE 3329#if EV_IDLE_ENABLE
2780/* make idle watchers pending. this handles the "call-idle */ 3330/* make idle watchers pending. this handles the "call-idle */
2781/* only when higher priorities are idle" logic */ 3331/* only when higher priorities are idle" logic */
… …
2839 } 3389 }
2840} 3390}
2841 3391
2842#if EV_PERIODIC_ENABLE 3392#if EV_PERIODIC_ENABLE
2843 3393
2844static void noinline 3394noinline
3395static void
2845periodic_recalc (EV_P_ ev_periodic *w) 3396periodic_recalc (EV_P_ ev_periodic *w)
2846{ 3397{
2847 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3398 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2848 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3399 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2849 3400
… …
2907 } 3458 }
2908} 3459}
2909 3460
2910/* simply recalculate all periodics */ 3461/* simply recalculate all periodics */
2911/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3462/* TODO: maybe ensure that at least one event happens when jumping forward? */
2912static void noinline ecb_cold 3463noinline ecb_cold
3464static void
2913periodics_reschedule (EV_P) 3465periodics_reschedule (EV_P)
2914{ 3466{
2915 int i; 3467 int i;
2916 3468
2917 /* adjust periodics after time jump */ 3469 /* adjust periodics after time jump */
… …
2930 reheap (periodics, periodiccnt); 3482 reheap (periodics, periodiccnt);
2931} 3483}
2932#endif 3484#endif
2933 3485
2934/* adjust all timers by a given offset */ 3486/* adjust all timers by a given offset */
2935static void noinline ecb_cold 3487noinline ecb_cold
3488static void
2936timers_reschedule (EV_P_ ev_tstamp adjust) 3489timers_reschedule (EV_P_ ev_tstamp adjust)
2937{ 3490{
2938 int i; 3491 int i;
2939 3492
2940 for (i = 0; i < timercnt; ++i) 3493 for (i = 0; i < timercnt; ++i)
… …
3187 3740
3188 return activecnt; 3741 return activecnt;
3189} 3742}
3190 3743
3191void 3744void
3192ev_break (EV_P_ int how) EV_THROW 3745ev_break (EV_P_ int how) EV_NOEXCEPT
3193{ 3746{
3194 loop_done = how; 3747 loop_done = how;
3195} 3748}
3196 3749
3197void 3750void
3198ev_ref (EV_P) EV_THROW 3751ev_ref (EV_P) EV_NOEXCEPT
3199{ 3752{
3200 ++activecnt; 3753 ++activecnt;
3201} 3754}
3202 3755
3203void 3756void
3204ev_unref (EV_P) EV_THROW 3757ev_unref (EV_P) EV_NOEXCEPT
3205{ 3758{
3206 --activecnt; 3759 --activecnt;
3207} 3760}
3208 3761
3209void 3762void
3210ev_now_update (EV_P) EV_THROW 3763ev_now_update (EV_P) EV_NOEXCEPT
3211{ 3764{
3212 time_update (EV_A_ 1e100); 3765 time_update (EV_A_ 1e100);
3213} 3766}
3214 3767
3215void 3768void
3216ev_suspend (EV_P) EV_THROW 3769ev_suspend (EV_P) EV_NOEXCEPT
3217{ 3770{
3218 ev_now_update (EV_A); 3771 ev_now_update (EV_A);
3219} 3772}
3220 3773
3221void 3774void
3222ev_resume (EV_P) EV_THROW 3775ev_resume (EV_P) EV_NOEXCEPT
3223{ 3776{
3224 ev_tstamp mn_prev = mn_now; 3777 ev_tstamp mn_prev = mn_now;
3225 3778
3226 ev_now_update (EV_A); 3779 ev_now_update (EV_A);
3227 timers_reschedule (EV_A_ mn_now - mn_prev); 3780 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3266 w->pending = 0; 3819 w->pending = 0;
3267 } 3820 }
3268} 3821}
3269 3822
3270int 3823int
3271ev_clear_pending (EV_P_ void *w) EV_THROW 3824ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3272{ 3825{
3273 W w_ = (W)w; 3826 W w_ = (W)w;
3274 int pending = w_->pending; 3827 int pending = w_->pending;
3275 3828
3276 if (expect_true (pending)) 3829 if (expect_true (pending))
… …
3308 w->active = 0; 3861 w->active = 0;
3309} 3862}
3310 3863
3311/*****************************************************************************/ 3864/*****************************************************************************/
3312 3865
3313void noinline 3866noinline
3867void
3314ev_io_start (EV_P_ ev_io *w) EV_THROW 3868ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3315{ 3869{
3316 int fd = w->fd; 3870 int fd = w->fd;
3317 3871
3318 if (expect_false (ev_is_active (w))) 3872 if (expect_false (ev_is_active (w)))
3319 return; 3873 return;
… …
3334 w->events &= ~EV__IOFDSET; 3888 w->events &= ~EV__IOFDSET;
3335 3889
3336 EV_FREQUENT_CHECK; 3890 EV_FREQUENT_CHECK;
3337} 3891}
3338 3892
3339void noinline 3893noinline
3894void
3340ev_io_stop (EV_P_ ev_io *w) EV_THROW 3895ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3341{ 3896{
3342 clear_pending (EV_A_ (W)w); 3897 clear_pending (EV_A_ (W)w);
3343 if (expect_false (!ev_is_active (w))) 3898 if (expect_false (!ev_is_active (w)))
3344 return; 3899 return;
3345 3900
… …
3353 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3908 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3354 3909
3355 EV_FREQUENT_CHECK; 3910 EV_FREQUENT_CHECK;
3356} 3911}
3357 3912
3358void noinline 3913noinline
3914void
3359ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3915ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3360{ 3916{
3361 if (expect_false (ev_is_active (w))) 3917 if (expect_false (ev_is_active (w)))
3362 return; 3918 return;
3363 3919
3364 ev_at (w) += mn_now; 3920 ev_at (w) += mn_now;
… …
3377 EV_FREQUENT_CHECK; 3933 EV_FREQUENT_CHECK;
3378 3934
3379 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3935 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3380} 3936}
3381 3937
3382void noinline 3938noinline
3939void
3383ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3940ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3384{ 3941{
3385 clear_pending (EV_A_ (W)w); 3942 clear_pending (EV_A_ (W)w);
3386 if (expect_false (!ev_is_active (w))) 3943 if (expect_false (!ev_is_active (w)))
3387 return; 3944 return;
3388 3945
… …
3407 ev_stop (EV_A_ (W)w); 3964 ev_stop (EV_A_ (W)w);
3408 3965
3409 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3410} 3967}
3411 3968
3412void noinline 3969noinline
3970void
3413ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3971ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3414{ 3972{
3415 EV_FREQUENT_CHECK; 3973 EV_FREQUENT_CHECK;
3416 3974
3417 clear_pending (EV_A_ (W)w); 3975 clear_pending (EV_A_ (W)w);
3418 3976
… …
3435 3993
3436 EV_FREQUENT_CHECK; 3994 EV_FREQUENT_CHECK;
3437} 3995}
3438 3996
3439ev_tstamp 3997ev_tstamp
3440ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3998ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3441{ 3999{
3442 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4000 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3443} 4001}
3444 4002
3445#if EV_PERIODIC_ENABLE 4003#if EV_PERIODIC_ENABLE
3446void noinline 4004noinline
4005void
3447ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4006ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3448{ 4007{
3449 if (expect_false (ev_is_active (w))) 4008 if (expect_false (ev_is_active (w)))
3450 return; 4009 return;
3451 4010
3452 if (w->reschedule_cb) 4011 if (w->reschedule_cb)
… …
3471 EV_FREQUENT_CHECK; 4030 EV_FREQUENT_CHECK;
3472 4031
3473 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4032 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3474} 4033}
3475 4034
3476void noinline 4035noinline
4036void
3477ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4037ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3478{ 4038{
3479 clear_pending (EV_A_ (W)w); 4039 clear_pending (EV_A_ (W)w);
3480 if (expect_false (!ev_is_active (w))) 4040 if (expect_false (!ev_is_active (w)))
3481 return; 4041 return;
3482 4042
… …
3499 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
3500 4060
3501 EV_FREQUENT_CHECK; 4061 EV_FREQUENT_CHECK;
3502} 4062}
3503 4063
3504void noinline 4064noinline
4065void
3505ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4066ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3506{ 4067{
3507 /* TODO: use adjustheap and recalculation */ 4068 /* TODO: use adjustheap and recalculation */
3508 ev_periodic_stop (EV_A_ w); 4069 ev_periodic_stop (EV_A_ w);
3509 ev_periodic_start (EV_A_ w); 4070 ev_periodic_start (EV_A_ w);
3510} 4071}
… …
3514# define SA_RESTART 0 4075# define SA_RESTART 0
3515#endif 4076#endif
3516 4077
3517#if EV_SIGNAL_ENABLE 4078#if EV_SIGNAL_ENABLE
3518 4079
3519void noinline 4080noinline
4081void
3520ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4082ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3521{ 4083{
3522 if (expect_false (ev_is_active (w))) 4084 if (expect_false (ev_is_active (w)))
3523 return; 4085 return;
3524 4086
3525 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4087 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3596 } 4158 }
3597 4159
3598 EV_FREQUENT_CHECK; 4160 EV_FREQUENT_CHECK;
3599} 4161}
3600 4162
3601void noinline 4163noinline
4164void
3602ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4165ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3603{ 4166{
3604 clear_pending (EV_A_ (W)w); 4167 clear_pending (EV_A_ (W)w);
3605 if (expect_false (!ev_is_active (w))) 4168 if (expect_false (!ev_is_active (w)))
3606 return; 4169 return;
3607 4170
… …
3638#endif 4201#endif
3639 4202
3640#if EV_CHILD_ENABLE 4203#if EV_CHILD_ENABLE
3641 4204
3642void 4205void
3643ev_child_start (EV_P_ ev_child *w) EV_THROW 4206ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3644{ 4207{
3645#if EV_MULTIPLICITY 4208#if EV_MULTIPLICITY
3646 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4209 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3647#endif 4210#endif
3648 if (expect_false (ev_is_active (w))) 4211 if (expect_false (ev_is_active (w)))
… …
3655 4218
3656 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
3657} 4220}
3658 4221
3659void 4222void
3660ev_child_stop (EV_P_ ev_child *w) EV_THROW 4223ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3661{ 4224{
3662 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
3663 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
3664 return; 4227 return;
3665 4228
… …
3682 4245
3683#define DEF_STAT_INTERVAL 5.0074891 4246#define DEF_STAT_INTERVAL 5.0074891
3684#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4247#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3685#define MIN_STAT_INTERVAL 0.1074891 4248#define MIN_STAT_INTERVAL 0.1074891
3686 4249
3687static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4250noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3688 4251
3689#if EV_USE_INOTIFY 4252#if EV_USE_INOTIFY
3690 4253
3691/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4254/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3692# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4255# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3693 4256
3694static void noinline 4257noinline
4258static void
3695infy_add (EV_P_ ev_stat *w) 4259infy_add (EV_P_ ev_stat *w)
3696{ 4260{
3697 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); 4261 w->wd = inotify_add_watch (fs_fd, w->path,
4262 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4263 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4264 | IN_DONT_FOLLOW | IN_MASK_ADD);
3698 4265
3699 if (w->wd >= 0) 4266 if (w->wd >= 0)
3700 { 4267 {
3701 struct statfs sfs; 4268 struct statfs sfs;
3702 4269
… …
3706 4273
3707 if (!fs_2625) 4274 if (!fs_2625)
3708 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4275 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3709 else if (!statfs (w->path, &sfs) 4276 else if (!statfs (w->path, &sfs)
3710 && (sfs.f_type == 0x1373 /* devfs */ 4277 && (sfs.f_type == 0x1373 /* devfs */
4278 || sfs.f_type == 0x4006 /* fat */
4279 || sfs.f_type == 0x4d44 /* msdos */
3711 || sfs.f_type == 0xEF53 /* ext2/3 */ 4280 || sfs.f_type == 0xEF53 /* ext2/3 */
4281 || sfs.f_type == 0x72b6 /* jffs2 */
4282 || sfs.f_type == 0x858458f6 /* ramfs */
4283 || sfs.f_type == 0x5346544e /* ntfs */
3712 || sfs.f_type == 0x3153464a /* jfs */ 4284 || sfs.f_type == 0x3153464a /* jfs */
4285 || sfs.f_type == 0x9123683e /* btrfs */
3713 || sfs.f_type == 0x52654973 /* reiser3 */ 4286 || sfs.f_type == 0x52654973 /* reiser3 */
3714 || sfs.f_type == 0x01021994 /* tempfs */ 4287 || sfs.f_type == 0x01021994 /* tmpfs */
3715 || sfs.f_type == 0x58465342 /* xfs */)) 4288 || sfs.f_type == 0x58465342 /* xfs */))
3716 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4289 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3717 else 4290 else
3718 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4291 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3719 } 4292 }
… …
3754 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4327 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3755 ev_timer_again (EV_A_ &w->timer); 4328 ev_timer_again (EV_A_ &w->timer);
3756 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4329 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3757} 4330}
3758 4331
3759static void noinline 4332noinline
4333static void
3760infy_del (EV_P_ ev_stat *w) 4334infy_del (EV_P_ ev_stat *w)
3761{ 4335{
3762 int slot; 4336 int slot;
3763 int wd = w->wd; 4337 int wd = w->wd;
3764 4338
… …
3771 4345
3772 /* remove this watcher, if others are watching it, they will rearm */ 4346 /* remove this watcher, if others are watching it, they will rearm */
3773 inotify_rm_watch (fs_fd, wd); 4347 inotify_rm_watch (fs_fd, wd);
3774} 4348}
3775 4349
3776static void noinline 4350noinline
4351static void
3777infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4352infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3778{ 4353{
3779 if (slot < 0) 4354 if (slot < 0)
3780 /* overflow, need to check for all hash slots */ 4355 /* overflow, need to check for all hash slots */
3781 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4356 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3817 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4392 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3818 ofs += sizeof (struct inotify_event) + ev->len; 4393 ofs += sizeof (struct inotify_event) + ev->len;
3819 } 4394 }
3820} 4395}
3821 4396
3822inline_size void ecb_cold 4397inline_size ecb_cold
4398void
3823ev_check_2625 (EV_P) 4399ev_check_2625 (EV_P)
3824{ 4400{
3825 /* kernels < 2.6.25 are borked 4401 /* kernels < 2.6.25 are borked
3826 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4402 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3827 */ 4403 */
… …
3917#else 4493#else
3918# define EV_LSTAT(p,b) lstat (p, b) 4494# define EV_LSTAT(p,b) lstat (p, b)
3919#endif 4495#endif
3920 4496
3921void 4497void
3922ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4498ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3923{ 4499{
3924 if (lstat (w->path, &w->attr) < 0) 4500 if (lstat (w->path, &w->attr) < 0)
3925 w->attr.st_nlink = 0; 4501 w->attr.st_nlink = 0;
3926 else if (!w->attr.st_nlink) 4502 else if (!w->attr.st_nlink)
3927 w->attr.st_nlink = 1; 4503 w->attr.st_nlink = 1;
3928} 4504}
3929 4505
3930static void noinline 4506noinline
4507static void
3931stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4508stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3932{ 4509{
3933 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4510 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3934 4511
3935 ev_statdata prev = w->attr; 4512 ev_statdata prev = w->attr;
… …
3966 ev_feed_event (EV_A_ w, EV_STAT); 4543 ev_feed_event (EV_A_ w, EV_STAT);
3967 } 4544 }
3968} 4545}
3969 4546
3970void 4547void
3971ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4548ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3972{ 4549{
3973 if (expect_false (ev_is_active (w))) 4550 if (expect_false (ev_is_active (w)))
3974 return; 4551 return;
3975 4552
3976 ev_stat_stat (EV_A_ w); 4553 ev_stat_stat (EV_A_ w);
… …
3997 4574
3998 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
3999} 4576}
4000 4577
4001void 4578void
4002ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4579ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4003{ 4580{
4004 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
4005 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
4006 return; 4583 return;
4007 4584
… …
4023} 4600}
4024#endif 4601#endif
4025 4602
4026#if EV_IDLE_ENABLE 4603#if EV_IDLE_ENABLE
4027void 4604void
4028ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4605ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4029{ 4606{
4030 if (expect_false (ev_is_active (w))) 4607 if (expect_false (ev_is_active (w)))
4031 return; 4608 return;
4032 4609
4033 pri_adjust (EV_A_ (W)w); 4610 pri_adjust (EV_A_ (W)w);
… …
4046 4623
4047 EV_FREQUENT_CHECK; 4624 EV_FREQUENT_CHECK;
4048} 4625}
4049 4626
4050void 4627void
4051ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4628ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4052{ 4629{
4053 clear_pending (EV_A_ (W)w); 4630 clear_pending (EV_A_ (W)w);
4054 if (expect_false (!ev_is_active (w))) 4631 if (expect_false (!ev_is_active (w)))
4055 return; 4632 return;
4056 4633
… …
4070} 4647}
4071#endif 4648#endif
4072 4649
4073#if EV_PREPARE_ENABLE 4650#if EV_PREPARE_ENABLE
4074void 4651void
4075ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4652ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4076{ 4653{
4077 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
4078 return; 4655 return;
4079 4656
4080 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
… …
4085 4662
4086 EV_FREQUENT_CHECK; 4663 EV_FREQUENT_CHECK;
4087} 4664}
4088 4665
4089void 4666void
4090ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4667ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4091{ 4668{
4092 clear_pending (EV_A_ (W)w); 4669 clear_pending (EV_A_ (W)w);
4093 if (expect_false (!ev_is_active (w))) 4670 if (expect_false (!ev_is_active (w)))
4094 return; 4671 return;
4095 4672
… …
4108} 4685}
4109#endif 4686#endif
4110 4687
4111#if EV_CHECK_ENABLE 4688#if EV_CHECK_ENABLE
4112void 4689void
4113ev_check_start (EV_P_ ev_check *w) EV_THROW 4690ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4114{ 4691{
4115 if (expect_false (ev_is_active (w))) 4692 if (expect_false (ev_is_active (w)))
4116 return; 4693 return;
4117 4694
4118 EV_FREQUENT_CHECK; 4695 EV_FREQUENT_CHECK;
… …
4123 4700
4124 EV_FREQUENT_CHECK; 4701 EV_FREQUENT_CHECK;
4125} 4702}
4126 4703
4127void 4704void
4128ev_check_stop (EV_P_ ev_check *w) EV_THROW 4705ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4129{ 4706{
4130 clear_pending (EV_A_ (W)w); 4707 clear_pending (EV_A_ (W)w);
4131 if (expect_false (!ev_is_active (w))) 4708 if (expect_false (!ev_is_active (w)))
4132 return; 4709 return;
4133 4710
… …
4145 EV_FREQUENT_CHECK; 4722 EV_FREQUENT_CHECK;
4146} 4723}
4147#endif 4724#endif
4148 4725
4149#if EV_EMBED_ENABLE 4726#if EV_EMBED_ENABLE
4150void noinline 4727noinline
4728void
4151ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4729ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4152{ 4730{
4153 ev_run (w->other, EVRUN_NOWAIT); 4731 ev_run (w->other, EVRUN_NOWAIT);
4154} 4732}
4155 4733
4156static void 4734static void
… …
4204 ev_idle_stop (EV_A_ idle); 4782 ev_idle_stop (EV_A_ idle);
4205} 4783}
4206#endif 4784#endif
4207 4785
4208void 4786void
4209ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4787ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4210{ 4788{
4211 if (expect_false (ev_is_active (w))) 4789 if (expect_false (ev_is_active (w)))
4212 return; 4790 return;
4213 4791
4214 { 4792 {
… …
4235 4813
4236 EV_FREQUENT_CHECK; 4814 EV_FREQUENT_CHECK;
4237} 4815}
4238 4816
4239void 4817void
4240ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4818ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4241{ 4819{
4242 clear_pending (EV_A_ (W)w); 4820 clear_pending (EV_A_ (W)w);
4243 if (expect_false (!ev_is_active (w))) 4821 if (expect_false (!ev_is_active (w)))
4244 return; 4822 return;
4245 4823
… …
4255} 4833}
4256#endif 4834#endif
4257 4835
4258#if EV_FORK_ENABLE 4836#if EV_FORK_ENABLE
4259void 4837void
4260ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4838ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4261{ 4839{
4262 if (expect_false (ev_is_active (w))) 4840 if (expect_false (ev_is_active (w)))
4263 return; 4841 return;
4264 4842
4265 EV_FREQUENT_CHECK; 4843 EV_FREQUENT_CHECK;
… …
4270 4848
4271 EV_FREQUENT_CHECK; 4849 EV_FREQUENT_CHECK;
4272} 4850}
4273 4851
4274void 4852void
4275ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4853ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4276{ 4854{
4277 clear_pending (EV_A_ (W)w); 4855 clear_pending (EV_A_ (W)w);
4278 if (expect_false (!ev_is_active (w))) 4856 if (expect_false (!ev_is_active (w)))
4279 return; 4857 return;
4280 4858
… …
4293} 4871}
4294#endif 4872#endif
4295 4873
4296#if EV_CLEANUP_ENABLE 4874#if EV_CLEANUP_ENABLE
4297void 4875void
4298ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4876ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4299{ 4877{
4300 if (expect_false (ev_is_active (w))) 4878 if (expect_false (ev_is_active (w)))
4301 return; 4879 return;
4302 4880
4303 EV_FREQUENT_CHECK; 4881 EV_FREQUENT_CHECK;
… …
4310 ev_unref (EV_A); 4888 ev_unref (EV_A);
4311 EV_FREQUENT_CHECK; 4889 EV_FREQUENT_CHECK;
4312} 4890}
4313 4891
4314void 4892void
4315ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4893ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4316{ 4894{
4317 clear_pending (EV_A_ (W)w); 4895 clear_pending (EV_A_ (W)w);
4318 if (expect_false (!ev_is_active (w))) 4896 if (expect_false (!ev_is_active (w)))
4319 return; 4897 return;
4320 4898
… …
4334} 4912}
4335#endif 4913#endif
4336 4914
4337#if EV_ASYNC_ENABLE 4915#if EV_ASYNC_ENABLE
4338void 4916void
4339ev_async_start (EV_P_ ev_async *w) EV_THROW 4917ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4340{ 4918{
4341 if (expect_false (ev_is_active (w))) 4919 if (expect_false (ev_is_active (w)))
4342 return; 4920 return;
4343 4921
4344 w->sent = 0; 4922 w->sent = 0;
… …
4353 4931
4354 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
4355} 4933}
4356 4934
4357void 4935void
4358ev_async_stop (EV_P_ ev_async *w) EV_THROW 4936ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4359{ 4937{
4360 clear_pending (EV_A_ (W)w); 4938 clear_pending (EV_A_ (W)w);
4361 if (expect_false (!ev_is_active (w))) 4939 if (expect_false (!ev_is_active (w)))
4362 return; 4940 return;
4363 4941
… …
4374 4952
4375 EV_FREQUENT_CHECK; 4953 EV_FREQUENT_CHECK;
4376} 4954}
4377 4955
4378void 4956void
4379ev_async_send (EV_P_ ev_async *w) EV_THROW 4957ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4380{ 4958{
4381 w->sent = 1; 4959 w->sent = 1;
4382 evpipe_write (EV_A_ &async_pending); 4960 evpipe_write (EV_A_ &async_pending);
4383} 4961}
4384#endif 4962#endif
… …
4421 4999
4422 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5000 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4423} 5001}
4424 5002
4425void 5003void
4426ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5004ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4427{ 5005{
4428 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5006 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4429 5007
4430 if (expect_false (!once)) 5008 if (expect_false (!once))
4431 { 5009 {
… …
4452} 5030}
4453 5031
4454/*****************************************************************************/ 5032/*****************************************************************************/
4455 5033
4456#if EV_WALK_ENABLE 5034#if EV_WALK_ENABLE
4457void ecb_cold 5035ecb_cold
5036void
4458ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5037ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4459{ 5038{
4460 int i, j; 5039 int i, j;
4461 ev_watcher_list *wl, *wn; 5040 ev_watcher_list *wl, *wn;
4462 5041
4463 if (types & (EV_IO | EV_EMBED)) 5042 if (types & (EV_IO | EV_EMBED))

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