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

Comparing libev/ev.c (file contents):
Revision 1.455 by root, Sun Apr 28 12:45:20 2013 UTC vs.
Revision 1.491 by root, Thu Jun 20 23:14:53 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# define EV_USE_LINUXAIO 0
331#endif
332
312#ifndef EV_USE_INOTIFY 333#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 334# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 335# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 336# else
316# define EV_USE_INOTIFY 0 337# define EV_USE_INOTIFY 0
… …
357 378
358#ifndef EV_HEAP_CACHE_AT 379#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 380# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif 381#endif
361 382
362#ifdef ANDROID 383#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 384/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 385# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 386# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 387/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL 388# undef EV_USE_CLOCK_SYSCALL
… …
371/* aix's poll.h seems to cause lots of trouble */ 392/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX 393#ifdef _AIX
373/* AIX has a completely broken poll.h header */ 394/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL 395# undef EV_USE_POLL
375# define EV_USE_POLL 0 396# define EV_USE_POLL 0
397#endif
398
399#if EV_USE_LINUXAIO
400# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
376#endif 401#endif
377 402
378/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 403/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
379/* which makes programs even slower. might work on other unices, too. */ 404/* which makes programs even slower. might work on other unices, too. */
380#if EV_USE_CLOCK_SYSCALL 405#if EV_USE_CLOCK_SYSCALL
… …
408 433
409#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
410/* hp-ux has it in sys/time.h, which we unconditionally include above */ 435/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux 436# if !defined _WIN32 && !defined __hpux
412# include <sys/select.h> 437# include <sys/select.h>
438# endif
439#endif
440
441#if EV_USE_LINUXAIO
442# include <sys/syscall.h>
443# if !SYS_io_getevents
444# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0
413# endif 446# endif
414#endif 447#endif
415 448
416#if EV_USE_INOTIFY 449#if EV_USE_INOTIFY
417# include <sys/statfs.h> 450# include <sys/statfs.h>
… …
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
487/* 520/*
488 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
489 * 522 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 525 * All rights reserved.
493 * 526 *
494 * Redistribution and use in source and binary forms, with or without modifica- 527 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 542 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 545 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 546 * OF THE POSSIBILITY OF SUCH DAMAGE.
547 *
548 * Alternatively, the contents of this file may be used under the terms of
549 * the GNU General Public License ("GPL") version 2 or any later version,
550 * in which case the provisions of the GPL are applicable instead of
551 * the above. If you wish to allow the use of your version of this file
552 * only under the terms of the GPL and not to allow others to use your
553 * version of this file under the BSD license, indicate your decision
554 * by deleting the provisions above and replace them with the notice
555 * and other provisions required by the GPL. If you do not delete the
556 * provisions above, a recipient may use your version of this file under
557 * either the BSD or the GPL.
514 */ 558 */
515 559
516#ifndef ECB_H 560#ifndef ECB_H
517#define ECB_H 561#define ECB_H
518 562
519/* 16 bits major, 16 bits minor */ 563/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003 564#define ECB_VERSION 0x00010005
521 565
522#ifdef _WIN32 566#ifdef _WIN32
523 typedef signed char int8_t; 567 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 586 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 587 typedef int32_t intptr_t;
544 #endif 588 #endif
545#else 589#else
546 #include <inttypes.h> 590 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 592 #define ECB_PTRSIZE 8
549 #else 593 #else
550 #define ECB_PTRSIZE 4 594 #define ECB_PTRSIZE 4
551 #endif 595 #endif
552#endif 596#endif
553 597
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
600
554/* work around x32 idiocy by defining proper macros */ 601/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64 602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
556 #if __ILP32 603 #if _ILP32
557 #define ECB_AMD64_X32 1 604 #define ECB_AMD64_X32 1
558 #else 605 #else
559 #define ECB_AMD64 1 606 #define ECB_AMD64 1
560 #endif 607 #endif
561#endif 608#endif
… …
565 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so. 613 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have 614 * we try to detect these and simply assume they are not gcc - if they have
568 * an issue with that they should have done it right in the first place. 615 * an issue with that they should have done it right in the first place.
569 */ 616 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 617#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
573 #else 619#else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 620 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif 621#endif
576#endif
577 622
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 623#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
579#define ECB_C99 (__STDC_VERSION__ >= 199901L) 624
580#define ECB_C11 (__STDC_VERSION__ >= 201112L) 625#if __clang__ && defined __has_builtin
626 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
627#else
628 #define ECB_CLANG_BUILTIN(x) 0
629#endif
630
631#if __clang__ && defined __has_extension
632 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
633#else
634 #define ECB_CLANG_EXTENSION(x) 0
635#endif
636
581#define ECB_CPP (__cplusplus+0) 637#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L) 638#define ECB_CPP11 (__cplusplus >= 201103L)
639#define ECB_CPP14 (__cplusplus >= 201402L)
640#define ECB_CPP17 (__cplusplus >= 201703L)
641
642#if ECB_CPP
643 #define ECB_C 0
644 #define ECB_STDC_VERSION 0
645#else
646 #define ECB_C 1
647 #define ECB_STDC_VERSION __STDC_VERSION__
648#endif
649
650#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
651#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
652#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
583 653
584#if ECB_CPP 654#if ECB_CPP
585 #define ECB_EXTERN_C extern "C" 655 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 656 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END } 657 #define ECB_EXTERN_C_END }
… …
600 #define ECB_NO_SMP 1 670 #define ECB_NO_SMP 1
601#endif 671#endif
602 672
603#if ECB_NO_SMP 673#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
675#endif
676
677/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
678#if __xlC__ && ECB_CPP
679 #include <builtins.h>
680#endif
681
682#if 1400 <= _MSC_VER
683 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
605#endif 684#endif
606 685
607#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 687 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
609 #if __i386 || __i386__ 688 #if __i386 || __i386__
610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 689 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 690 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 691 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 692 #elif ECB_GCC_AMD64
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 693 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 694 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 695 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 696 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 697 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
698 #elif defined __ARM_ARCH_2__ \
699 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
700 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
701 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
702 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
703 || defined __ARM_ARCH_5TEJ__
704 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 705 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 706 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
707 || defined __ARM_ARCH_6T2__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 708 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 709 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 710 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 711 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__ 712 #elif __aarch64__
713 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
714 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 715 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 716 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 717 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__ 718 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 719 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
631 #elif defined __mips__ 720 #elif defined __mips__
721 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
722 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
632 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 723 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
633 #elif defined __alpha__ 724 #elif defined __alpha__
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 725 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
635 #elif defined __hppa__ 726 #elif defined __hppa__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 727 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 728 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
638 #elif defined __ia64__ 729 #elif defined __ia64__
639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 730 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
731 #elif defined __m68k__
732 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
733 #elif defined __m88k__
734 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
735 #elif defined __sh__
736 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
640 #endif 737 #endif
641 #endif 738 #endif
642#endif 739#endif
643 740
644#ifndef ECB_MEMORY_FENCE 741#ifndef ECB_MEMORY_FENCE
645 #if ECB_GCC_VERSION(4,7) 742 #if ECB_GCC_VERSION(4,7)
646 /* see comment below (stdatomic.h) about the C11 memory model. */ 743 /* see comment below (stdatomic.h) about the C11 memory model. */
647 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 744 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
745 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
746 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
648 747
649 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 748 #elif ECB_CLANG_EXTENSION(c_atomic)
650 * without risking compile time errors with other compilers. We *could*
651 * define our own ecb_clang_has_feature, but I just can't be bothered to work
652 * around this shit time and again.
653 * #elif defined __clang && __has_feature (cxx_atomic)
654 * // see comment below (stdatomic.h) about the C11 memory model. 749 /* see comment below (stdatomic.h) about the C11 memory model. */
655 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 750 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
656 */ 751 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
752 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
657 753
658 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 754 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
659 #define ECB_MEMORY_FENCE __sync_synchronize () 755 #define ECB_MEMORY_FENCE __sync_synchronize ()
756 #elif _MSC_VER >= 1500 /* VC++ 2008 */
757 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
758 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
759 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
760 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
761 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
660 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 762 #elif _MSC_VER >= 1400 /* VC++ 2005 */
661 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 763 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
662 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 764 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
663 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 765 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
664 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 766 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
684 /* any fence other than seq_cst, which isn't very efficient for us. */ 786 /* any fence other than seq_cst, which isn't very efficient for us. */
685 /* Why that is, we don't know - either the C11 memory model is quite useless */ 787 /* Why that is, we don't know - either the C11 memory model is quite useless */
686 /* for most usages, or gcc and clang have a bug */ 788 /* for most usages, or gcc and clang have a bug */
687 /* I *currently* lean towards the latter, and inefficiently implement */ 789 /* I *currently* lean towards the latter, and inefficiently implement */
688 /* all three of ecb's fences as a seq_cst fence */ 790 /* all three of ecb's fences as a seq_cst fence */
791 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
792 /* for all __atomic_thread_fence's except seq_cst */
689 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 793 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
690 #endif 794 #endif
691#endif 795#endif
692 796
693#ifndef ECB_MEMORY_FENCE 797#ifndef ECB_MEMORY_FENCE
… …
716 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 820 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
717#endif 821#endif
718 822
719/*****************************************************************************/ 823/*****************************************************************************/
720 824
721#if __cplusplus 825#if ECB_CPP
722 #define ecb_inline static inline 826 #define ecb_inline static inline
723#elif ECB_GCC_VERSION(2,5) 827#elif ECB_GCC_VERSION(2,5)
724 #define ecb_inline static __inline__ 828 #define ecb_inline static __inline__
725#elif ECB_C99 829#elif ECB_C99
726 #define ecb_inline static inline 830 #define ecb_inline static inline
… …
740 844
741#define ECB_CONCAT_(a, b) a ## b 845#define ECB_CONCAT_(a, b) a ## b
742#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 846#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
743#define ECB_STRINGIFY_(a) # a 847#define ECB_STRINGIFY_(a) # a
744#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 848#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
849#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
745 850
746#define ecb_function_ ecb_inline 851#define ecb_function_ ecb_inline
747 852
748#if ECB_GCC_VERSION(3,1) 853#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
749 #define ecb_attribute(attrlist) __attribute__(attrlist) 854 #define ecb_attribute(attrlist) __attribute__ (attrlist)
855#else
856 #define ecb_attribute(attrlist)
857#endif
858
859#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
750 #define ecb_is_constant(expr) __builtin_constant_p (expr) 860 #define ecb_is_constant(expr) __builtin_constant_p (expr)
861#else
862 /* possible C11 impl for integral types
863 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
864 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
865
866 #define ecb_is_constant(expr) 0
867#endif
868
869#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
751 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 870 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
871#else
872 #define ecb_expect(expr,value) (expr)
873#endif
874
875#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
752 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 876 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
753#else 877#else
754 #define ecb_attribute(attrlist)
755 #define ecb_is_constant(expr) 0
756 #define ecb_expect(expr,value) (expr)
757 #define ecb_prefetch(addr,rw,locality) 878 #define ecb_prefetch(addr,rw,locality)
758#endif 879#endif
759 880
760/* no emulation for ecb_decltype */ 881/* no emulation for ecb_decltype */
761#if ECB_GCC_VERSION(4,5) 882#if ECB_CPP11
883 // older implementations might have problems with decltype(x)::type, work around it
884 template<class T> struct ecb_decltype_t { typedef T type; };
762 #define ecb_decltype(x) __decltype(x) 885 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
763#elif ECB_GCC_VERSION(3,0) 886#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
764 #define ecb_decltype(x) __typeof(x) 887 #define ecb_decltype(x) __typeof__ (x)
765#endif 888#endif
766 889
890#if _MSC_VER >= 1300
891 #define ecb_deprecated __declspec (deprecated)
892#else
893 #define ecb_deprecated ecb_attribute ((__deprecated__))
894#endif
895
896#if _MSC_VER >= 1500
897 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
898#elif ECB_GCC_VERSION(4,5)
899 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
900#else
901 #define ecb_deprecated_message(msg) ecb_deprecated
902#endif
903
904#if _MSC_VER >= 1400
905 #define ecb_noinline __declspec (noinline)
906#else
767#define ecb_noinline ecb_attribute ((__noinline__)) 907 #define ecb_noinline ecb_attribute ((__noinline__))
908#endif
909
768#define ecb_unused ecb_attribute ((__unused__)) 910#define ecb_unused ecb_attribute ((__unused__))
769#define ecb_const ecb_attribute ((__const__)) 911#define ecb_const ecb_attribute ((__const__))
770#define ecb_pure ecb_attribute ((__pure__)) 912#define ecb_pure ecb_attribute ((__pure__))
771 913
772#if ECB_C11 914#if ECB_C11 || __IBMC_NORETURN
915 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
773 #define ecb_noreturn _Noreturn 916 #define ecb_noreturn _Noreturn
917#elif ECB_CPP11
918 #define ecb_noreturn [[noreturn]]
919#elif _MSC_VER >= 1200
920 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
921 #define ecb_noreturn __declspec (noreturn)
774#else 922#else
775 #define ecb_noreturn ecb_attribute ((__noreturn__)) 923 #define ecb_noreturn ecb_attribute ((__noreturn__))
776#endif 924#endif
777 925
778#if ECB_GCC_VERSION(4,3) 926#if ECB_GCC_VERSION(4,3)
… …
793/* for compatibility to the rest of the world */ 941/* for compatibility to the rest of the world */
794#define ecb_likely(expr) ecb_expect_true (expr) 942#define ecb_likely(expr) ecb_expect_true (expr)
795#define ecb_unlikely(expr) ecb_expect_false (expr) 943#define ecb_unlikely(expr) ecb_expect_false (expr)
796 944
797/* count trailing zero bits and count # of one bits */ 945/* count trailing zero bits and count # of one bits */
798#if ECB_GCC_VERSION(3,4) 946#if ECB_GCC_VERSION(3,4) \
947 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
948 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
949 && ECB_CLANG_BUILTIN(__builtin_popcount))
799 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 950 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
800 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 951 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
801 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 952 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
802 #define ecb_ctz32(x) __builtin_ctz (x) 953 #define ecb_ctz32(x) __builtin_ctz (x)
803 #define ecb_ctz64(x) __builtin_ctzll (x) 954 #define ecb_ctz64(x) __builtin_ctzll (x)
804 #define ecb_popcount32(x) __builtin_popcount (x) 955 #define ecb_popcount32(x) __builtin_popcount (x)
805 /* no popcountll */ 956 /* no popcountll */
806#else 957#else
807 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 958 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
808 ecb_function_ int 959 ecb_function_ ecb_const int
809 ecb_ctz32 (uint32_t x) 960 ecb_ctz32 (uint32_t x)
810 { 961 {
962#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
963 unsigned long r;
964 _BitScanForward (&r, x);
965 return (int)r;
966#else
811 int r = 0; 967 int r = 0;
812 968
813 x &= ~x + 1; /* this isolates the lowest bit */ 969 x &= ~x + 1; /* this isolates the lowest bit */
814 970
815#if ECB_branchless_on_i386 971#if ECB_branchless_on_i386
… …
825 if (x & 0xff00ff00) r += 8; 981 if (x & 0xff00ff00) r += 8;
826 if (x & 0xffff0000) r += 16; 982 if (x & 0xffff0000) r += 16;
827#endif 983#endif
828 984
829 return r; 985 return r;
986#endif
830 } 987 }
831 988
832 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 989 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
833 ecb_function_ int 990 ecb_function_ ecb_const int
834 ecb_ctz64 (uint64_t x) 991 ecb_ctz64 (uint64_t x)
835 { 992 {
993#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
994 unsigned long r;
995 _BitScanForward64 (&r, x);
996 return (int)r;
997#else
836 int shift = x & 0xffffffffU ? 0 : 32; 998 int shift = x & 0xffffffff ? 0 : 32;
837 return ecb_ctz32 (x >> shift) + shift; 999 return ecb_ctz32 (x >> shift) + shift;
1000#endif
838 } 1001 }
839 1002
840 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1003 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
841 ecb_function_ int 1004 ecb_function_ ecb_const int
842 ecb_popcount32 (uint32_t x) 1005 ecb_popcount32 (uint32_t x)
843 { 1006 {
844 x -= (x >> 1) & 0x55555555; 1007 x -= (x >> 1) & 0x55555555;
845 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1008 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
846 x = ((x >> 4) + x) & 0x0f0f0f0f; 1009 x = ((x >> 4) + x) & 0x0f0f0f0f;
847 x *= 0x01010101; 1010 x *= 0x01010101;
848 1011
849 return x >> 24; 1012 return x >> 24;
850 } 1013 }
851 1014
852 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1015 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
853 ecb_function_ int ecb_ld32 (uint32_t x) 1016 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
854 { 1017 {
1018#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1019 unsigned long r;
1020 _BitScanReverse (&r, x);
1021 return (int)r;
1022#else
855 int r = 0; 1023 int r = 0;
856 1024
857 if (x >> 16) { x >>= 16; r += 16; } 1025 if (x >> 16) { x >>= 16; r += 16; }
858 if (x >> 8) { x >>= 8; r += 8; } 1026 if (x >> 8) { x >>= 8; r += 8; }
859 if (x >> 4) { x >>= 4; r += 4; } 1027 if (x >> 4) { x >>= 4; r += 4; }
860 if (x >> 2) { x >>= 2; r += 2; } 1028 if (x >> 2) { x >>= 2; r += 2; }
861 if (x >> 1) { r += 1; } 1029 if (x >> 1) { r += 1; }
862 1030
863 return r; 1031 return r;
1032#endif
864 } 1033 }
865 1034
866 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1035 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
867 ecb_function_ int ecb_ld64 (uint64_t x) 1036 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
868 { 1037 {
1038#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1039 unsigned long r;
1040 _BitScanReverse64 (&r, x);
1041 return (int)r;
1042#else
869 int r = 0; 1043 int r = 0;
870 1044
871 if (x >> 32) { x >>= 32; r += 32; } 1045 if (x >> 32) { x >>= 32; r += 32; }
872 1046
873 return r + ecb_ld32 (x); 1047 return r + ecb_ld32 (x);
1048#endif
874 } 1049 }
875#endif 1050#endif
876 1051
877ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1052ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
878ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1053ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
879ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1054ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
880ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1055ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
881 1056
882ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1057ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
883ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1058ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
884{ 1059{
885 return ( (x * 0x0802U & 0x22110U) 1060 return ( (x * 0x0802U & 0x22110U)
886 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1061 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
887} 1062}
888 1063
889ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1064ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
890ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1065ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
891{ 1066{
892 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1067 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
893 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1068 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
894 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1069 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
895 x = ( x >> 8 ) | ( x << 8); 1070 x = ( x >> 8 ) | ( x << 8);
896 1071
897 return x; 1072 return x;
898} 1073}
899 1074
900ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1075ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
901ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1076ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
902{ 1077{
903 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1078 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
904 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1079 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
905 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1080 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
906 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1081 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
909 return x; 1084 return x;
910} 1085}
911 1086
912/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1087/* popcount64 is only available on 64 bit cpus as gcc builtin */
913/* so for this version we are lazy */ 1088/* so for this version we are lazy */
914ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1089ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
915ecb_function_ int 1090ecb_function_ ecb_const int
916ecb_popcount64 (uint64_t x) 1091ecb_popcount64 (uint64_t x)
917{ 1092{
918 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1093 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
919} 1094}
920 1095
921ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1096ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
922ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1097ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
923ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1098ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
924ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1099ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
925ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
926ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
927ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
928ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
929 1104
930ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1105ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
931ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1106ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
932ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1107ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
933ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1108ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
934ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1109ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
935ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1110ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
936ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1111ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
937ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1112ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
938 1113
939#if ECB_GCC_VERSION(4,3) 1114#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1115 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1116 #define ecb_bswap16(x) __builtin_bswap16 (x)
1117 #else
940 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1118 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1119 #endif
941 #define ecb_bswap32(x) __builtin_bswap32 (x) 1120 #define ecb_bswap32(x) __builtin_bswap32 (x)
942 #define ecb_bswap64(x) __builtin_bswap64 (x) 1121 #define ecb_bswap64(x) __builtin_bswap64 (x)
1122#elif _MSC_VER
1123 #include <stdlib.h>
1124 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1125 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1126 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
943#else 1127#else
944 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1128 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
945 ecb_function_ uint16_t 1129 ecb_function_ ecb_const uint16_t
946 ecb_bswap16 (uint16_t x) 1130 ecb_bswap16 (uint16_t x)
947 { 1131 {
948 return ecb_rotl16 (x, 8); 1132 return ecb_rotl16 (x, 8);
949 } 1133 }
950 1134
951 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1135 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
952 ecb_function_ uint32_t 1136 ecb_function_ ecb_const uint32_t
953 ecb_bswap32 (uint32_t x) 1137 ecb_bswap32 (uint32_t x)
954 { 1138 {
955 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1139 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
956 } 1140 }
957 1141
958 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1142 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
959 ecb_function_ uint64_t 1143 ecb_function_ ecb_const uint64_t
960 ecb_bswap64 (uint64_t x) 1144 ecb_bswap64 (uint64_t x)
961 { 1145 {
962 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1146 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
963 } 1147 }
964#endif 1148#endif
965 1149
966#if ECB_GCC_VERSION(4,5) 1150#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
967 #define ecb_unreachable() __builtin_unreachable () 1151 #define ecb_unreachable() __builtin_unreachable ()
968#else 1152#else
969 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1153 /* this seems to work fine, but gcc always emits a warning for it :/ */
970 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1154 ecb_inline ecb_noreturn void ecb_unreachable (void);
971 ecb_inline void ecb_unreachable (void) { } 1155 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
972#endif 1156#endif
973 1157
974/* try to tell the compiler that some condition is definitely true */ 1158/* try to tell the compiler that some condition is definitely true */
975#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1159#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
976 1160
977ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1161ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
978ecb_inline unsigned char 1162ecb_inline ecb_const uint32_t
979ecb_byteorder_helper (void) 1163ecb_byteorder_helper (void)
980{ 1164{
981 /* the union code still generates code under pressure in gcc, */ 1165 /* the union code still generates code under pressure in gcc, */
982 /* but less than using pointers, and always seems to */ 1166 /* but less than using pointers, and always seems to */
983 /* successfully return a constant. */ 1167 /* successfully return a constant. */
984 /* the reason why we have this horrible preprocessor mess */ 1168 /* the reason why we have this horrible preprocessor mess */
985 /* is to avoid it in all cases, at least on common architectures */ 1169 /* is to avoid it in all cases, at least on common architectures */
986 /* or when using a recent enough gcc version (>= 4.6) */ 1170 /* or when using a recent enough gcc version (>= 4.6) */
987#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
988 return 0x44;
989#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1171#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1172 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1173 #define ECB_LITTLE_ENDIAN 1
990 return 0x44; 1174 return 0x44332211;
991#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1175#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1176 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1177 #define ECB_BIG_ENDIAN 1
992 return 0x11; 1178 return 0x11223344;
993#else 1179#else
994 union 1180 union
995 { 1181 {
1182 uint8_t c[4];
996 uint32_t i; 1183 uint32_t u;
997 uint8_t c;
998 } u = { 0x11223344 }; 1184 } u = { 0x11, 0x22, 0x33, 0x44 };
999 return u.c; 1185 return u.u;
1000#endif 1186#endif
1001} 1187}
1002 1188
1003ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1189ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1004ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1190ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1005ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1006ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1192ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1007 1193
1008#if ECB_GCC_VERSION(3,0) || ECB_C99 1194#if ECB_GCC_VERSION(3,0) || ECB_C99
1009 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1195 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1010#else 1196#else
1011 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1197 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1012#endif 1198#endif
1013 1199
1014#if __cplusplus 1200#if ECB_CPP
1015 template<typename T> 1201 template<typename T>
1016 static inline T ecb_div_rd (T val, T div) 1202 static inline T ecb_div_rd (T val, T div)
1017 { 1203 {
1018 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1204 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1019 } 1205 }
… …
1036 } 1222 }
1037#else 1223#else
1038 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1224 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1039#endif 1225#endif
1040 1226
1227ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1228ecb_function_ ecb_const uint32_t
1229ecb_binary16_to_binary32 (uint32_t x)
1230{
1231 unsigned int s = (x & 0x8000) << (31 - 15);
1232 int e = (x >> 10) & 0x001f;
1233 unsigned int m = x & 0x03ff;
1234
1235 if (ecb_expect_false (e == 31))
1236 /* infinity or NaN */
1237 e = 255 - (127 - 15);
1238 else if (ecb_expect_false (!e))
1239 {
1240 if (ecb_expect_true (!m))
1241 /* zero, handled by code below by forcing e to 0 */
1242 e = 0 - (127 - 15);
1243 else
1244 {
1245 /* subnormal, renormalise */
1246 unsigned int s = 10 - ecb_ld32 (m);
1247
1248 m = (m << s) & 0x3ff; /* mask implicit bit */
1249 e -= s - 1;
1250 }
1251 }
1252
1253 /* e and m now are normalised, or zero, (or inf or nan) */
1254 e += 127 - 15;
1255
1256 return s | (e << 23) | (m << (23 - 10));
1257}
1258
1259ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1260ecb_function_ ecb_const uint16_t
1261ecb_binary32_to_binary16 (uint32_t x)
1262{
1263 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1264 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1265 unsigned int m = x & 0x007fffff;
1266
1267 x &= 0x7fffffff;
1268
1269 /* if it's within range of binary16 normals, use fast path */
1270 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1271 {
1272 /* mantissa round-to-even */
1273 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1274
1275 /* handle overflow */
1276 if (ecb_expect_false (m >= 0x00800000))
1277 {
1278 m >>= 1;
1279 e += 1;
1280 }
1281
1282 return s | (e << 10) | (m >> (23 - 10));
1283 }
1284
1285 /* handle large numbers and infinity */
1286 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1287 return s | 0x7c00;
1288
1289 /* handle zero, subnormals and small numbers */
1290 if (ecb_expect_true (x < 0x38800000))
1291 {
1292 /* zero */
1293 if (ecb_expect_true (!x))
1294 return s;
1295
1296 /* handle subnormals */
1297
1298 /* too small, will be zero */
1299 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1300 return s;
1301
1302 m |= 0x00800000; /* make implicit bit explicit */
1303
1304 /* very tricky - we need to round to the nearest e (+10) bit value */
1305 {
1306 unsigned int bits = 14 - e;
1307 unsigned int half = (1 << (bits - 1)) - 1;
1308 unsigned int even = (m >> bits) & 1;
1309
1310 /* if this overflows, we will end up with a normalised number */
1311 m = (m + half + even) >> bits;
1312 }
1313
1314 return s | m;
1315 }
1316
1317 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1318 m >>= 13;
1319
1320 return s | 0x7c00 | m | !m;
1321}
1322
1041/*******************************************************************************/ 1323/*******************************************************************************/
1042/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1324/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1043 1325
1044/* basically, everything uses "ieee pure-endian" floating point numbers */ 1326/* basically, everything uses "ieee pure-endian" floating point numbers */
1045/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1327/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1046#if 0 \ 1328#if 0 \
1047 || __i386 || __i386__ \ 1329 || __i386 || __i386__ \
1048 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1330 || ECB_GCC_AMD64 \
1049 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1331 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1050 || defined __arm__ && defined __ARM_EABI__ \
1051 || defined __s390__ || defined __s390x__ \ 1332 || defined __s390__ || defined __s390x__ \
1052 || defined __mips__ \ 1333 || defined __mips__ \
1053 || defined __alpha__ \ 1334 || defined __alpha__ \
1054 || defined __hppa__ \ 1335 || defined __hppa__ \
1055 || defined __ia64__ \ 1336 || defined __ia64__ \
1337 || defined __m68k__ \
1338 || defined __m88k__ \
1339 || defined __sh__ \
1056 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1340 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1341 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1342 || defined __aarch64__
1057 #define ECB_STDFP 1 1343 #define ECB_STDFP 1
1058 #include <string.h> /* for memcpy */ 1344 #include <string.h> /* for memcpy */
1059#else 1345#else
1060 #define ECB_STDFP 0 1346 #define ECB_STDFP 0
1061 #include <math.h> /* for frexp*, ldexp* */
1062#endif 1347#endif
1063 1348
1064#ifndef ECB_NO_LIBM 1349#ifndef ECB_NO_LIBM
1065 1350
1351 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1352
1353 /* only the oldest of old doesn't have this one. solaris. */
1354 #ifdef INFINITY
1355 #define ECB_INFINITY INFINITY
1356 #else
1357 #define ECB_INFINITY HUGE_VAL
1358 #endif
1359
1360 #ifdef NAN
1361 #define ECB_NAN NAN
1362 #else
1363 #define ECB_NAN ECB_INFINITY
1364 #endif
1365
1366 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1367 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1368 #define ecb_frexpf(x,e) frexpf ((x), (e))
1369 #else
1370 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1371 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1372 #endif
1373
1066 /* convert a float to ieee single/binary32 */ 1374 /* convert a float to ieee single/binary32 */
1067 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1375 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1068 ecb_function_ uint32_t 1376 ecb_function_ ecb_const uint32_t
1069 ecb_float_to_binary32 (float x) 1377 ecb_float_to_binary32 (float x)
1070 { 1378 {
1071 uint32_t r; 1379 uint32_t r;
1072 1380
1073 #if ECB_STDFP 1381 #if ECB_STDFP
… …
1080 if (x == 0e0f ) return 0x00000000U; 1388 if (x == 0e0f ) return 0x00000000U;
1081 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1389 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1082 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1390 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1083 if (x != x ) return 0x7fbfffffU; 1391 if (x != x ) return 0x7fbfffffU;
1084 1392
1085 m = frexpf (x, &e) * 0x1000000U; 1393 m = ecb_frexpf (x, &e) * 0x1000000U;
1086 1394
1087 r = m & 0x80000000U; 1395 r = m & 0x80000000U;
1088 1396
1089 if (r) 1397 if (r)
1090 m = -m; 1398 m = -m;
… …
1102 1410
1103 return r; 1411 return r;
1104 } 1412 }
1105 1413
1106 /* converts an ieee single/binary32 to a float */ 1414 /* converts an ieee single/binary32 to a float */
1107 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1415 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1108 ecb_function_ float 1416 ecb_function_ ecb_const float
1109 ecb_binary32_to_float (uint32_t x) 1417 ecb_binary32_to_float (uint32_t x)
1110 { 1418 {
1111 float r; 1419 float r;
1112 1420
1113 #if ECB_STDFP 1421 #if ECB_STDFP
… …
1123 x |= 0x800000U; 1431 x |= 0x800000U;
1124 else 1432 else
1125 e = 1; 1433 e = 1;
1126 1434
1127 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1435 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1128 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1436 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1129 1437
1130 r = neg ? -r : r; 1438 r = neg ? -r : r;
1131 #endif 1439 #endif
1132 1440
1133 return r; 1441 return r;
1134 } 1442 }
1135 1443
1136 /* convert a double to ieee double/binary64 */ 1444 /* convert a double to ieee double/binary64 */
1137 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1445 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1138 ecb_function_ uint64_t 1446 ecb_function_ ecb_const uint64_t
1139 ecb_double_to_binary64 (double x) 1447 ecb_double_to_binary64 (double x)
1140 { 1448 {
1141 uint64_t r; 1449 uint64_t r;
1142 1450
1143 #if ECB_STDFP 1451 #if ECB_STDFP
… …
1172 1480
1173 return r; 1481 return r;
1174 } 1482 }
1175 1483
1176 /* converts an ieee double/binary64 to a double */ 1484 /* converts an ieee double/binary64 to a double */
1177 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1485 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1178 ecb_function_ double 1486 ecb_function_ ecb_const double
1179 ecb_binary64_to_double (uint64_t x) 1487 ecb_binary64_to_double (uint64_t x)
1180 { 1488 {
1181 double r; 1489 double r;
1182 1490
1183 #if ECB_STDFP 1491 #if ECB_STDFP
… …
1199 1507
1200 r = neg ? -r : r; 1508 r = neg ? -r : r;
1201 #endif 1509 #endif
1202 1510
1203 return r; 1511 return r;
1512 }
1513
1514 /* convert a float to ieee half/binary16 */
1515 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1516 ecb_function_ ecb_const uint16_t
1517 ecb_float_to_binary16 (float x)
1518 {
1519 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1520 }
1521
1522 /* convert an ieee half/binary16 to float */
1523 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1524 ecb_function_ ecb_const float
1525 ecb_binary16_to_float (uint16_t x)
1526 {
1527 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1204 } 1528 }
1205 1529
1206#endif 1530#endif
1207 1531
1208#endif 1532#endif
… …
1233#define inline_size ecb_inline 1557#define inline_size ecb_inline
1234 1558
1235#if EV_FEATURE_CODE 1559#if EV_FEATURE_CODE
1236# define inline_speed ecb_inline 1560# define inline_speed ecb_inline
1237#else 1561#else
1238# define inline_speed static noinline 1562# define inline_speed noinline static
1239#endif 1563#endif
1240 1564
1241#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1565#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1242 1566
1243#if EV_MINPRI == EV_MAXPRI 1567#if EV_MINPRI == EV_MAXPRI
1244# define ABSPRI(w) (((W)w), 0) 1568# define ABSPRI(w) (((W)w), 0)
1245#else 1569#else
1246# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1570# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1247#endif 1571#endif
1248 1572
1249#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1573#define EMPTY /* required for microsofts broken pseudo-c compiler */
1250#define EMPTY2(a,b) /* used to suppress some warnings */
1251 1574
1252typedef ev_watcher *W; 1575typedef ev_watcher *W;
1253typedef ev_watcher_list *WL; 1576typedef ev_watcher_list *WL;
1254typedef ev_watcher_time *WT; 1577typedef ev_watcher_time *WT;
1255 1578
… …
1290#else 1613#else
1291 1614
1292#include <float.h> 1615#include <float.h>
1293 1616
1294/* a floor() replacement function, should be independent of ev_tstamp type */ 1617/* a floor() replacement function, should be independent of ev_tstamp type */
1618noinline
1295static ev_tstamp noinline 1619static ev_tstamp
1296ev_floor (ev_tstamp v) 1620ev_floor (ev_tstamp v)
1297{ 1621{
1298 /* the choice of shift factor is not terribly important */ 1622 /* the choice of shift factor is not terribly important */
1299#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1623#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1300 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1624 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1332 1656
1333#ifdef __linux 1657#ifdef __linux
1334# include <sys/utsname.h> 1658# include <sys/utsname.h>
1335#endif 1659#endif
1336 1660
1337static unsigned int noinline ecb_cold 1661noinline ecb_cold
1662static unsigned int
1338ev_linux_version (void) 1663ev_linux_version (void)
1339{ 1664{
1340#ifdef __linux 1665#ifdef __linux
1341 unsigned int v = 0; 1666 unsigned int v = 0;
1342 struct utsname buf; 1667 struct utsname buf;
… …
1371} 1696}
1372 1697
1373/*****************************************************************************/ 1698/*****************************************************************************/
1374 1699
1375#if EV_AVOID_STDIO 1700#if EV_AVOID_STDIO
1376static void noinline ecb_cold 1701noinline ecb_cold
1702static void
1377ev_printerr (const char *msg) 1703ev_printerr (const char *msg)
1378{ 1704{
1379 write (STDERR_FILENO, msg, strlen (msg)); 1705 write (STDERR_FILENO, msg, strlen (msg));
1380} 1706}
1381#endif 1707#endif
1382 1708
1383static void (*syserr_cb)(const char *msg) EV_THROW; 1709static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1384 1710
1385void ecb_cold 1711ecb_cold
1712void
1386ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1713ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1387{ 1714{
1388 syserr_cb = cb; 1715 syserr_cb = cb;
1389} 1716}
1390 1717
1391static void noinline ecb_cold 1718noinline ecb_cold
1719static void
1392ev_syserr (const char *msg) 1720ev_syserr (const char *msg)
1393{ 1721{
1394 if (!msg) 1722 if (!msg)
1395 msg = "(libev) system error"; 1723 msg = "(libev) system error";
1396 1724
… …
1409 abort (); 1737 abort ();
1410 } 1738 }
1411} 1739}
1412 1740
1413static void * 1741static void *
1414ev_realloc_emul (void *ptr, long size) EV_THROW 1742ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1415{ 1743{
1416 /* some systems, notably openbsd and darwin, fail to properly 1744 /* some systems, notably openbsd and darwin, fail to properly
1417 * implement realloc (x, 0) (as required by both ansi c-89 and 1745 * implement realloc (x, 0) (as required by both ansi c-89 and
1418 * the single unix specification, so work around them here. 1746 * the single unix specification, so work around them here.
1419 * recently, also (at least) fedora and debian started breaking it, 1747 * recently, also (at least) fedora and debian started breaking it,
… …
1425 1753
1426 free (ptr); 1754 free (ptr);
1427 return 0; 1755 return 0;
1428} 1756}
1429 1757
1430static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1758static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1431 1759
1432void ecb_cold 1760ecb_cold
1761void
1433ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1762ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1434{ 1763{
1435 alloc = cb; 1764 alloc = cb;
1436} 1765}
1437 1766
1438inline_speed void * 1767inline_speed void *
… …
1465typedef struct 1794typedef struct
1466{ 1795{
1467 WL head; 1796 WL head;
1468 unsigned char events; /* the events watched for */ 1797 unsigned char events; /* the events watched for */
1469 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1798 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1470 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1799 unsigned char emask; /* some backends store the actual kernel mask in here */
1471 unsigned char unused; 1800 unsigned char unused;
1472#if EV_USE_EPOLL 1801#if EV_USE_EPOLL
1473 unsigned int egen; /* generation counter to counter epoll bugs */ 1802 unsigned int egen; /* generation counter to counter epoll bugs */
1474#endif 1803#endif
1475#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1804#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1555 1884
1556/*****************************************************************************/ 1885/*****************************************************************************/
1557 1886
1558#ifndef EV_HAVE_EV_TIME 1887#ifndef EV_HAVE_EV_TIME
1559ev_tstamp 1888ev_tstamp
1560ev_time (void) EV_THROW 1889ev_time (void) EV_NOEXCEPT
1561{ 1890{
1562#if EV_USE_REALTIME 1891#if EV_USE_REALTIME
1563 if (expect_true (have_realtime)) 1892 if (expect_true (have_realtime))
1564 { 1893 {
1565 struct timespec ts; 1894 struct timespec ts;
… …
1589 return ev_time (); 1918 return ev_time ();
1590} 1919}
1591 1920
1592#if EV_MULTIPLICITY 1921#if EV_MULTIPLICITY
1593ev_tstamp 1922ev_tstamp
1594ev_now (EV_P) EV_THROW 1923ev_now (EV_P) EV_NOEXCEPT
1595{ 1924{
1596 return ev_rt_now; 1925 return ev_rt_now;
1597} 1926}
1598#endif 1927#endif
1599 1928
1600void 1929void
1601ev_sleep (ev_tstamp delay) EV_THROW 1930ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1602{ 1931{
1603 if (delay > 0.) 1932 if (delay > 0.)
1604 { 1933 {
1605#if EV_USE_NANOSLEEP 1934#if EV_USE_NANOSLEEP
1606 struct timespec ts; 1935 struct timespec ts;
1607 1936
1608 EV_TS_SET (ts, delay); 1937 EV_TS_SET (ts, delay);
1609 nanosleep (&ts, 0); 1938 nanosleep (&ts, 0);
1610#elif defined _WIN32 1939#elif defined _WIN32
1940 /* maybe this should round up, as ms is very low resolution */
1941 /* compared to select (µs) or nanosleep (ns) */
1611 Sleep ((unsigned long)(delay * 1e3)); 1942 Sleep ((unsigned long)(delay * 1e3));
1612#else 1943#else
1613 struct timeval tv; 1944 struct timeval tv;
1614 1945
1615 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1946 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1646 } 1977 }
1647 1978
1648 return ncur; 1979 return ncur;
1649} 1980}
1650 1981
1651static void * noinline ecb_cold 1982noinline ecb_cold
1983static void *
1652array_realloc (int elem, void *base, int *cur, int cnt) 1984array_realloc (int elem, void *base, int *cur, int cnt)
1653{ 1985{
1654 *cur = array_nextsize (elem, *cur, cnt); 1986 *cur = array_nextsize (elem, *cur, cnt);
1655 return ev_realloc (base, elem * *cur); 1987 return ev_realloc (base, elem * *cur);
1656} 1988}
1657 1989
1990#define array_needsize_noinit(base,count)
1991
1658#define array_init_zero(base,count) \ 1992#define array_needsize_zerofill(base,count) \
1659 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1993 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1660 1994
1661#define array_needsize(type,base,cur,cnt,init) \ 1995#define array_needsize(type,base,cur,cnt,init) \
1662 if (expect_false ((cnt) > (cur))) \ 1996 if (expect_false ((cnt) > (cur))) \
1663 { \ 1997 { \
1664 int ecb_unused ocur_ = (cur); \ 1998 ecb_unused int ocur_ = (cur); \
1665 (base) = (type *)array_realloc \ 1999 (base) = (type *)array_realloc \
1666 (sizeof (type), (base), &(cur), (cnt)); \ 2000 (sizeof (type), (base), &(cur), (cnt)); \
1667 init ((base) + (ocur_), (cur) - ocur_); \ 2001 init ((base) + (ocur_), (cur) - ocur_); \
1668 } 2002 }
1669 2003
… …
1681 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2015 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1682 2016
1683/*****************************************************************************/ 2017/*****************************************************************************/
1684 2018
1685/* dummy callback for pending events */ 2019/* dummy callback for pending events */
1686static void noinline 2020noinline
2021static void
1687pendingcb (EV_P_ ev_prepare *w, int revents) 2022pendingcb (EV_P_ ev_prepare *w, int revents)
1688{ 2023{
1689} 2024}
1690 2025
1691void noinline 2026noinline
2027void
1692ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2028ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1693{ 2029{
1694 W w_ = (W)w; 2030 W w_ = (W)w;
1695 int pri = ABSPRI (w_); 2031 int pri = ABSPRI (w_);
1696 2032
1697 if (expect_false (w_->pending)) 2033 if (expect_false (w_->pending))
1698 pendings [pri][w_->pending - 1].events |= revents; 2034 pendings [pri][w_->pending - 1].events |= revents;
1699 else 2035 else
1700 { 2036 {
1701 w_->pending = ++pendingcnt [pri]; 2037 w_->pending = ++pendingcnt [pri];
1702 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2038 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1703 pendings [pri][w_->pending - 1].w = w_; 2039 pendings [pri][w_->pending - 1].w = w_;
1704 pendings [pri][w_->pending - 1].events = revents; 2040 pendings [pri][w_->pending - 1].events = revents;
1705 } 2041 }
1706 2042
1707 pendingpri = NUMPRI - 1; 2043 pendingpri = NUMPRI - 1;
1708} 2044}
1709 2045
1710inline_speed void 2046inline_speed void
1711feed_reverse (EV_P_ W w) 2047feed_reverse (EV_P_ W w)
1712{ 2048{
1713 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2049 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1714 rfeeds [rfeedcnt++] = w; 2050 rfeeds [rfeedcnt++] = w;
1715} 2051}
1716 2052
1717inline_size void 2053inline_size void
1718feed_reverse_done (EV_P_ int revents) 2054feed_reverse_done (EV_P_ int revents)
… …
1758 if (expect_true (!anfd->reify)) 2094 if (expect_true (!anfd->reify))
1759 fd_event_nocheck (EV_A_ fd, revents); 2095 fd_event_nocheck (EV_A_ fd, revents);
1760} 2096}
1761 2097
1762void 2098void
1763ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2099ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1764{ 2100{
1765 if (fd >= 0 && fd < anfdmax) 2101 if (fd >= 0 && fd < anfdmax)
1766 fd_event_nocheck (EV_A_ fd, revents); 2102 fd_event_nocheck (EV_A_ fd, revents);
1767} 2103}
1768 2104
… …
1826 2162
1827 fdchangecnt = 0; 2163 fdchangecnt = 0;
1828} 2164}
1829 2165
1830/* something about the given fd changed */ 2166/* something about the given fd changed */
1831inline_size void 2167inline_size
2168void
1832fd_change (EV_P_ int fd, int flags) 2169fd_change (EV_P_ int fd, int flags)
1833{ 2170{
1834 unsigned char reify = anfds [fd].reify; 2171 unsigned char reify = anfds [fd].reify;
1835 anfds [fd].reify |= flags; 2172 anfds [fd].reify |= flags;
1836 2173
1837 if (expect_true (!reify)) 2174 if (expect_true (!reify))
1838 { 2175 {
1839 ++fdchangecnt; 2176 ++fdchangecnt;
1840 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2177 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1841 fdchanges [fdchangecnt - 1] = fd; 2178 fdchanges [fdchangecnt - 1] = fd;
1842 } 2179 }
1843} 2180}
1844 2181
1845/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2182/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1846inline_speed void ecb_cold 2183inline_speed ecb_cold void
1847fd_kill (EV_P_ int fd) 2184fd_kill (EV_P_ int fd)
1848{ 2185{
1849 ev_io *w; 2186 ev_io *w;
1850 2187
1851 while ((w = (ev_io *)anfds [fd].head)) 2188 while ((w = (ev_io *)anfds [fd].head))
… …
1854 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2191 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1855 } 2192 }
1856} 2193}
1857 2194
1858/* check whether the given fd is actually valid, for error recovery */ 2195/* check whether the given fd is actually valid, for error recovery */
1859inline_size int ecb_cold 2196inline_size ecb_cold int
1860fd_valid (int fd) 2197fd_valid (int fd)
1861{ 2198{
1862#ifdef _WIN32 2199#ifdef _WIN32
1863 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2200 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1864#else 2201#else
1865 return fcntl (fd, F_GETFD) != -1; 2202 return fcntl (fd, F_GETFD) != -1;
1866#endif 2203#endif
1867} 2204}
1868 2205
1869/* called on EBADF to verify fds */ 2206/* called on EBADF to verify fds */
1870static void noinline ecb_cold 2207noinline ecb_cold
2208static void
1871fd_ebadf (EV_P) 2209fd_ebadf (EV_P)
1872{ 2210{
1873 int fd; 2211 int fd;
1874 2212
1875 for (fd = 0; fd < anfdmax; ++fd) 2213 for (fd = 0; fd < anfdmax; ++fd)
… …
1877 if (!fd_valid (fd) && errno == EBADF) 2215 if (!fd_valid (fd) && errno == EBADF)
1878 fd_kill (EV_A_ fd); 2216 fd_kill (EV_A_ fd);
1879} 2217}
1880 2218
1881/* called on ENOMEM in select/poll to kill some fds and retry */ 2219/* called on ENOMEM in select/poll to kill some fds and retry */
1882static void noinline ecb_cold 2220noinline ecb_cold
2221static void
1883fd_enomem (EV_P) 2222fd_enomem (EV_P)
1884{ 2223{
1885 int fd; 2224 int fd;
1886 2225
1887 for (fd = anfdmax; fd--; ) 2226 for (fd = anfdmax; fd--; )
… …
1891 break; 2230 break;
1892 } 2231 }
1893} 2232}
1894 2233
1895/* usually called after fork if backend needs to re-arm all fds from scratch */ 2234/* usually called after fork if backend needs to re-arm all fds from scratch */
1896static void noinline 2235noinline
2236static void
1897fd_rearm_all (EV_P) 2237fd_rearm_all (EV_P)
1898{ 2238{
1899 int fd; 2239 int fd;
1900 2240
1901 for (fd = 0; fd < anfdmax; ++fd) 2241 for (fd = 0; fd < anfdmax; ++fd)
… …
2082 2422
2083/*****************************************************************************/ 2423/*****************************************************************************/
2084 2424
2085#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2425#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2086 2426
2087static void noinline ecb_cold 2427noinline ecb_cold
2428static void
2088evpipe_init (EV_P) 2429evpipe_init (EV_P)
2089{ 2430{
2090 if (!ev_is_active (&pipe_w)) 2431 if (!ev_is_active (&pipe_w))
2091 { 2432 {
2092 int fds [2]; 2433 int fds [2];
… …
2163#endif 2504#endif
2164 { 2505 {
2165#ifdef _WIN32 2506#ifdef _WIN32
2166 WSABUF buf; 2507 WSABUF buf;
2167 DWORD sent; 2508 DWORD sent;
2168 buf.buf = &buf; 2509 buf.buf = (char *)&buf;
2169 buf.len = 1; 2510 buf.len = 1;
2170 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2511 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2171#else 2512#else
2172 write (evpipe [1], &(evpipe [1]), 1); 2513 write (evpipe [1], &(evpipe [1]), 1);
2173#endif 2514#endif
… …
2245} 2586}
2246 2587
2247/*****************************************************************************/ 2588/*****************************************************************************/
2248 2589
2249void 2590void
2250ev_feed_signal (int signum) EV_THROW 2591ev_feed_signal (int signum) EV_NOEXCEPT
2251{ 2592{
2252#if EV_MULTIPLICITY 2593#if EV_MULTIPLICITY
2253 EV_P; 2594 EV_P;
2254 ECB_MEMORY_FENCE_ACQUIRE; 2595 ECB_MEMORY_FENCE_ACQUIRE;
2255 EV_A = signals [signum - 1].loop; 2596 EV_A = signals [signum - 1].loop;
… …
2270#endif 2611#endif
2271 2612
2272 ev_feed_signal (signum); 2613 ev_feed_signal (signum);
2273} 2614}
2274 2615
2275void noinline 2616noinline
2617void
2276ev_feed_signal_event (EV_P_ int signum) EV_THROW 2618ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2277{ 2619{
2278 WL w; 2620 WL w;
2279 2621
2280 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2622 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2281 return; 2623 return;
… …
2387# include "ev_port.c" 2729# include "ev_port.c"
2388#endif 2730#endif
2389#if EV_USE_KQUEUE 2731#if EV_USE_KQUEUE
2390# include "ev_kqueue.c" 2732# include "ev_kqueue.c"
2391#endif 2733#endif
2734#if EV_USE_LINUXAIO
2735# include "ev_linuxaio.c"
2736#endif
2392#if EV_USE_EPOLL 2737#if EV_USE_EPOLL
2393# include "ev_epoll.c" 2738# include "ev_epoll.c"
2394#endif 2739#endif
2395#if EV_USE_POLL 2740#if EV_USE_POLL
2396# include "ev_poll.c" 2741# include "ev_poll.c"
2397#endif 2742#endif
2398#if EV_USE_SELECT 2743#if EV_USE_SELECT
2399# include "ev_select.c" 2744# include "ev_select.c"
2400#endif 2745#endif
2401 2746
2402int ecb_cold 2747ecb_cold int
2403ev_version_major (void) EV_THROW 2748ev_version_major (void) EV_NOEXCEPT
2404{ 2749{
2405 return EV_VERSION_MAJOR; 2750 return EV_VERSION_MAJOR;
2406} 2751}
2407 2752
2408int ecb_cold 2753ecb_cold int
2409ev_version_minor (void) EV_THROW 2754ev_version_minor (void) EV_NOEXCEPT
2410{ 2755{
2411 return EV_VERSION_MINOR; 2756 return EV_VERSION_MINOR;
2412} 2757}
2413 2758
2414/* return true if we are running with elevated privileges and should ignore env variables */ 2759/* return true if we are running with elevated privileges and should ignore env variables */
2415int inline_size ecb_cold 2760inline_size ecb_cold int
2416enable_secure (void) 2761enable_secure (void)
2417{ 2762{
2418#ifdef _WIN32 2763#ifdef _WIN32
2419 return 0; 2764 return 0;
2420#else 2765#else
2421 return getuid () != geteuid () 2766 return getuid () != geteuid ()
2422 || getgid () != getegid (); 2767 || getgid () != getegid ();
2423#endif 2768#endif
2424} 2769}
2425 2770
2426unsigned int ecb_cold 2771ecb_cold
2772unsigned int
2427ev_supported_backends (void) EV_THROW 2773ev_supported_backends (void) EV_NOEXCEPT
2428{ 2774{
2429 unsigned int flags = 0; 2775 unsigned int flags = 0;
2430 2776
2431 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2777 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2432 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2778 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2433 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2779 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2780 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2434 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2781 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2435 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2782 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2436 2783
2437 return flags; 2784 return flags;
2438} 2785}
2439 2786
2440unsigned int ecb_cold 2787ecb_cold
2788unsigned int
2441ev_recommended_backends (void) EV_THROW 2789ev_recommended_backends (void) EV_NOEXCEPT
2442{ 2790{
2443 unsigned int flags = ev_supported_backends (); 2791 unsigned int flags = ev_supported_backends ();
2444 2792
2445#ifndef __NetBSD__ 2793#ifndef __NetBSD__
2446 /* kqueue is borked on everything but netbsd apparently */ 2794 /* kqueue is borked on everything but netbsd apparently */
… …
2454#endif 2802#endif
2455#ifdef __FreeBSD__ 2803#ifdef __FreeBSD__
2456 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2804 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2457#endif 2805#endif
2458 2806
2807 /* TODO: linuxaio is very experimental */
2808 flags &= ~EVBACKEND_LINUXAIO;
2809
2459 return flags; 2810 return flags;
2460} 2811}
2461 2812
2462unsigned int ecb_cold 2813ecb_cold
2814unsigned int
2463ev_embeddable_backends (void) EV_THROW 2815ev_embeddable_backends (void) EV_NOEXCEPT
2464{ 2816{
2465 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2817 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2466 2818
2467 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2819 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2468 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2820 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2470 2822
2471 return flags; 2823 return flags;
2472} 2824}
2473 2825
2474unsigned int 2826unsigned int
2475ev_backend (EV_P) EV_THROW 2827ev_backend (EV_P) EV_NOEXCEPT
2476{ 2828{
2477 return backend; 2829 return backend;
2478} 2830}
2479 2831
2480#if EV_FEATURE_API 2832#if EV_FEATURE_API
2481unsigned int 2833unsigned int
2482ev_iteration (EV_P) EV_THROW 2834ev_iteration (EV_P) EV_NOEXCEPT
2483{ 2835{
2484 return loop_count; 2836 return loop_count;
2485} 2837}
2486 2838
2487unsigned int 2839unsigned int
2488ev_depth (EV_P) EV_THROW 2840ev_depth (EV_P) EV_NOEXCEPT
2489{ 2841{
2490 return loop_depth; 2842 return loop_depth;
2491} 2843}
2492 2844
2493void 2845void
2494ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2846ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2495{ 2847{
2496 io_blocktime = interval; 2848 io_blocktime = interval;
2497} 2849}
2498 2850
2499void 2851void
2500ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2852ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2501{ 2853{
2502 timeout_blocktime = interval; 2854 timeout_blocktime = interval;
2503} 2855}
2504 2856
2505void 2857void
2506ev_set_userdata (EV_P_ void *data) EV_THROW 2858ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2507{ 2859{
2508 userdata = data; 2860 userdata = data;
2509} 2861}
2510 2862
2511void * 2863void *
2512ev_userdata (EV_P) EV_THROW 2864ev_userdata (EV_P) EV_NOEXCEPT
2513{ 2865{
2514 return userdata; 2866 return userdata;
2515} 2867}
2516 2868
2517void 2869void
2518ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2870ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2519{ 2871{
2520 invoke_cb = invoke_pending_cb; 2872 invoke_cb = invoke_pending_cb;
2521} 2873}
2522 2874
2523void 2875void
2524ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2876ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2525{ 2877{
2526 release_cb = release; 2878 release_cb = release;
2527 acquire_cb = acquire; 2879 acquire_cb = acquire;
2528} 2880}
2529#endif 2881#endif
2530 2882
2531/* initialise a loop structure, must be zero-initialised */ 2883/* initialise a loop structure, must be zero-initialised */
2532static void noinline ecb_cold 2884noinline ecb_cold
2885static void
2533loop_init (EV_P_ unsigned int flags) EV_THROW 2886loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2534{ 2887{
2535 if (!backend) 2888 if (!backend)
2536 { 2889 {
2537 origflags = flags; 2890 origflags = flags;
2538 2891
… …
2596 2949
2597 if (!(flags & EVBACKEND_MASK)) 2950 if (!(flags & EVBACKEND_MASK))
2598 flags |= ev_recommended_backends (); 2951 flags |= ev_recommended_backends ();
2599 2952
2600#if EV_USE_IOCP 2953#if EV_USE_IOCP
2601 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2954 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2602#endif 2955#endif
2603#if EV_USE_PORT 2956#if EV_USE_PORT
2604 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2957 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2605#endif 2958#endif
2606#if EV_USE_KQUEUE 2959#if EV_USE_KQUEUE
2607 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2960 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2961#endif
2962#if EV_USE_LINUXAIO
2963 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2608#endif 2964#endif
2609#if EV_USE_EPOLL 2965#if EV_USE_EPOLL
2610 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2966 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2611#endif 2967#endif
2612#if EV_USE_POLL 2968#if EV_USE_POLL
2613 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2969 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2614#endif 2970#endif
2615#if EV_USE_SELECT 2971#if EV_USE_SELECT
2616 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2972 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2617#endif 2973#endif
2618 2974
2619 ev_prepare_init (&pending_w, pendingcb); 2975 ev_prepare_init (&pending_w, pendingcb);
2620 2976
2621#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2977#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2624#endif 2980#endif
2625 } 2981 }
2626} 2982}
2627 2983
2628/* free up a loop structure */ 2984/* free up a loop structure */
2629void ecb_cold 2985ecb_cold
2986void
2630ev_loop_destroy (EV_P) 2987ev_loop_destroy (EV_P)
2631{ 2988{
2632 int i; 2989 int i;
2633 2990
2634#if EV_MULTIPLICITY 2991#if EV_MULTIPLICITY
… …
2675 3032
2676 if (backend_fd >= 0) 3033 if (backend_fd >= 0)
2677 close (backend_fd); 3034 close (backend_fd);
2678 3035
2679#if EV_USE_IOCP 3036#if EV_USE_IOCP
2680 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3037 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2681#endif 3038#endif
2682#if EV_USE_PORT 3039#if EV_USE_PORT
2683 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3040 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2684#endif 3041#endif
2685#if EV_USE_KQUEUE 3042#if EV_USE_KQUEUE
2686 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3043 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3044#endif
3045#if EV_USE_LINUXAIO
3046 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2687#endif 3047#endif
2688#if EV_USE_EPOLL 3048#if EV_USE_EPOLL
2689 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3049 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2690#endif 3050#endif
2691#if EV_USE_POLL 3051#if EV_USE_POLL
2692 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3052 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2693#endif 3053#endif
2694#if EV_USE_SELECT 3054#if EV_USE_SELECT
2695 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3055 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2696#endif 3056#endif
2697 3057
2698 for (i = NUMPRI; i--; ) 3058 for (i = NUMPRI; i--; )
2699 { 3059 {
2700 array_free (pending, [i]); 3060 array_free (pending, [i]);
… …
2742 3102
2743inline_size void 3103inline_size void
2744loop_fork (EV_P) 3104loop_fork (EV_P)
2745{ 3105{
2746#if EV_USE_PORT 3106#if EV_USE_PORT
2747 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3107 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2748#endif 3108#endif
2749#if EV_USE_KQUEUE 3109#if EV_USE_KQUEUE
2750 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3110 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3111#endif
3112#if EV_USE_LINUXAIO
3113 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2751#endif 3114#endif
2752#if EV_USE_EPOLL 3115#if EV_USE_EPOLL
2753 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3116 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2754#endif 3117#endif
2755#if EV_USE_INOTIFY 3118#if EV_USE_INOTIFY
2756 infy_fork (EV_A); 3119 infy_fork (EV_A);
2757#endif 3120#endif
2758 3121
2759#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3122#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2760 if (ev_is_active (&pipe_w)) 3123 if (ev_is_active (&pipe_w) && postfork != 2)
2761 { 3124 {
2762 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3125 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2763 3126
2764 ev_ref (EV_A); 3127 ev_ref (EV_A);
2765 ev_io_stop (EV_A_ &pipe_w); 3128 ev_io_stop (EV_A_ &pipe_w);
… …
2776 postfork = 0; 3139 postfork = 0;
2777} 3140}
2778 3141
2779#if EV_MULTIPLICITY 3142#if EV_MULTIPLICITY
2780 3143
3144ecb_cold
2781struct ev_loop * ecb_cold 3145struct ev_loop *
2782ev_loop_new (unsigned int flags) EV_THROW 3146ev_loop_new (unsigned int flags) EV_NOEXCEPT
2783{ 3147{
2784 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3148 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2785 3149
2786 memset (EV_A, 0, sizeof (struct ev_loop)); 3150 memset (EV_A, 0, sizeof (struct ev_loop));
2787 loop_init (EV_A_ flags); 3151 loop_init (EV_A_ flags);
… …
2794} 3158}
2795 3159
2796#endif /* multiplicity */ 3160#endif /* multiplicity */
2797 3161
2798#if EV_VERIFY 3162#if EV_VERIFY
2799static void noinline ecb_cold 3163noinline ecb_cold
3164static void
2800verify_watcher (EV_P_ W w) 3165verify_watcher (EV_P_ W w)
2801{ 3166{
2802 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3167 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2803 3168
2804 if (w->pending) 3169 if (w->pending)
2805 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3170 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2806} 3171}
2807 3172
2808static void noinline ecb_cold 3173noinline ecb_cold
3174static void
2809verify_heap (EV_P_ ANHE *heap, int N) 3175verify_heap (EV_P_ ANHE *heap, int N)
2810{ 3176{
2811 int i; 3177 int i;
2812 3178
2813 for (i = HEAP0; i < N + HEAP0; ++i) 3179 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2818 3184
2819 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3185 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2820 } 3186 }
2821} 3187}
2822 3188
2823static void noinline ecb_cold 3189noinline ecb_cold
3190static void
2824array_verify (EV_P_ W *ws, int cnt) 3191array_verify (EV_P_ W *ws, int cnt)
2825{ 3192{
2826 while (cnt--) 3193 while (cnt--)
2827 { 3194 {
2828 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3195 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2831} 3198}
2832#endif 3199#endif
2833 3200
2834#if EV_FEATURE_API 3201#if EV_FEATURE_API
2835void ecb_cold 3202void ecb_cold
2836ev_verify (EV_P) EV_THROW 3203ev_verify (EV_P) EV_NOEXCEPT
2837{ 3204{
2838#if EV_VERIFY 3205#if EV_VERIFY
2839 int i; 3206 int i;
2840 WL w, w2; 3207 WL w, w2;
2841 3208
… …
2917#endif 3284#endif
2918} 3285}
2919#endif 3286#endif
2920 3287
2921#if EV_MULTIPLICITY 3288#if EV_MULTIPLICITY
3289ecb_cold
2922struct ev_loop * ecb_cold 3290struct ev_loop *
2923#else 3291#else
2924int 3292int
2925#endif 3293#endif
2926ev_default_loop (unsigned int flags) EV_THROW 3294ev_default_loop (unsigned int flags) EV_NOEXCEPT
2927{ 3295{
2928 if (!ev_default_loop_ptr) 3296 if (!ev_default_loop_ptr)
2929 { 3297 {
2930#if EV_MULTIPLICITY 3298#if EV_MULTIPLICITY
2931 EV_P = ev_default_loop_ptr = &default_loop_struct; 3299 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2950 3318
2951 return ev_default_loop_ptr; 3319 return ev_default_loop_ptr;
2952} 3320}
2953 3321
2954void 3322void
2955ev_loop_fork (EV_P) EV_THROW 3323ev_loop_fork (EV_P) EV_NOEXCEPT
2956{ 3324{
2957 postfork = 1; 3325 postfork = 1;
2958} 3326}
2959 3327
2960/*****************************************************************************/ 3328/*****************************************************************************/
… …
2964{ 3332{
2965 EV_CB_INVOKE ((W)w, revents); 3333 EV_CB_INVOKE ((W)w, revents);
2966} 3334}
2967 3335
2968unsigned int 3336unsigned int
2969ev_pending_count (EV_P) EV_THROW 3337ev_pending_count (EV_P) EV_NOEXCEPT
2970{ 3338{
2971 int pri; 3339 int pri;
2972 unsigned int count = 0; 3340 unsigned int count = 0;
2973 3341
2974 for (pri = NUMPRI; pri--; ) 3342 for (pri = NUMPRI; pri--; )
2975 count += pendingcnt [pri]; 3343 count += pendingcnt [pri];
2976 3344
2977 return count; 3345 return count;
2978} 3346}
2979 3347
2980void noinline 3348noinline
3349void
2981ev_invoke_pending (EV_P) 3350ev_invoke_pending (EV_P)
2982{ 3351{
2983 pendingpri = NUMPRI; 3352 pendingpri = NUMPRI;
2984 3353
2985 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3354 do
2986 { 3355 {
2987 --pendingpri; 3356 --pendingpri;
2988 3357
3358 /* pendingpri possibly gets modified in the inner loop */
2989 while (pendingcnt [pendingpri]) 3359 while (pendingcnt [pendingpri])
2990 { 3360 {
2991 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3361 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2992 3362
2993 p->w->pending = 0; 3363 p->w->pending = 0;
2994 EV_CB_INVOKE (p->w, p->events); 3364 EV_CB_INVOKE (p->w, p->events);
2995 EV_FREQUENT_CHECK; 3365 EV_FREQUENT_CHECK;
2996 } 3366 }
2997 } 3367 }
3368 while (pendingpri);
2998} 3369}
2999 3370
3000#if EV_IDLE_ENABLE 3371#if EV_IDLE_ENABLE
3001/* make idle watchers pending. this handles the "call-idle */ 3372/* make idle watchers pending. this handles the "call-idle */
3002/* only when higher priorities are idle" logic */ 3373/* only when higher priorities are idle" logic */
… …
3060 } 3431 }
3061} 3432}
3062 3433
3063#if EV_PERIODIC_ENABLE 3434#if EV_PERIODIC_ENABLE
3064 3435
3065static void noinline 3436noinline
3437static void
3066periodic_recalc (EV_P_ ev_periodic *w) 3438periodic_recalc (EV_P_ ev_periodic *w)
3067{ 3439{
3068 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3440 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3069 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3441 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3070 3442
… …
3128 } 3500 }
3129} 3501}
3130 3502
3131/* simply recalculate all periodics */ 3503/* simply recalculate all periodics */
3132/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3504/* TODO: maybe ensure that at least one event happens when jumping forward? */
3133static void noinline ecb_cold 3505noinline ecb_cold
3506static void
3134periodics_reschedule (EV_P) 3507periodics_reschedule (EV_P)
3135{ 3508{
3136 int i; 3509 int i;
3137 3510
3138 /* adjust periodics after time jump */ 3511 /* adjust periodics after time jump */
… …
3151 reheap (periodics, periodiccnt); 3524 reheap (periodics, periodiccnt);
3152} 3525}
3153#endif 3526#endif
3154 3527
3155/* adjust all timers by a given offset */ 3528/* adjust all timers by a given offset */
3156static void noinline ecb_cold 3529noinline ecb_cold
3530static void
3157timers_reschedule (EV_P_ ev_tstamp adjust) 3531timers_reschedule (EV_P_ ev_tstamp adjust)
3158{ 3532{
3159 int i; 3533 int i;
3160 3534
3161 for (i = 0; i < timercnt; ++i) 3535 for (i = 0; i < timercnt; ++i)
… …
3408 3782
3409 return activecnt; 3783 return activecnt;
3410} 3784}
3411 3785
3412void 3786void
3413ev_break (EV_P_ int how) EV_THROW 3787ev_break (EV_P_ int how) EV_NOEXCEPT
3414{ 3788{
3415 loop_done = how; 3789 loop_done = how;
3416} 3790}
3417 3791
3418void 3792void
3419ev_ref (EV_P) EV_THROW 3793ev_ref (EV_P) EV_NOEXCEPT
3420{ 3794{
3421 ++activecnt; 3795 ++activecnt;
3422} 3796}
3423 3797
3424void 3798void
3425ev_unref (EV_P) EV_THROW 3799ev_unref (EV_P) EV_NOEXCEPT
3426{ 3800{
3427 --activecnt; 3801 --activecnt;
3428} 3802}
3429 3803
3430void 3804void
3431ev_now_update (EV_P) EV_THROW 3805ev_now_update (EV_P) EV_NOEXCEPT
3432{ 3806{
3433 time_update (EV_A_ 1e100); 3807 time_update (EV_A_ 1e100);
3434} 3808}
3435 3809
3436void 3810void
3437ev_suspend (EV_P) EV_THROW 3811ev_suspend (EV_P) EV_NOEXCEPT
3438{ 3812{
3439 ev_now_update (EV_A); 3813 ev_now_update (EV_A);
3440} 3814}
3441 3815
3442void 3816void
3443ev_resume (EV_P) EV_THROW 3817ev_resume (EV_P) EV_NOEXCEPT
3444{ 3818{
3445 ev_tstamp mn_prev = mn_now; 3819 ev_tstamp mn_prev = mn_now;
3446 3820
3447 ev_now_update (EV_A); 3821 ev_now_update (EV_A);
3448 timers_reschedule (EV_A_ mn_now - mn_prev); 3822 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3487 w->pending = 0; 3861 w->pending = 0;
3488 } 3862 }
3489} 3863}
3490 3864
3491int 3865int
3492ev_clear_pending (EV_P_ void *w) EV_THROW 3866ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3493{ 3867{
3494 W w_ = (W)w; 3868 W w_ = (W)w;
3495 int pending = w_->pending; 3869 int pending = w_->pending;
3496 3870
3497 if (expect_true (pending)) 3871 if (expect_true (pending))
… …
3529 w->active = 0; 3903 w->active = 0;
3530} 3904}
3531 3905
3532/*****************************************************************************/ 3906/*****************************************************************************/
3533 3907
3534void noinline 3908noinline
3909void
3535ev_io_start (EV_P_ ev_io *w) EV_THROW 3910ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3536{ 3911{
3537 int fd = w->fd; 3912 int fd = w->fd;
3538 3913
3539 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
3540 return; 3915 return;
… …
3543 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3918 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3544 3919
3545 EV_FREQUENT_CHECK; 3920 EV_FREQUENT_CHECK;
3546 3921
3547 ev_start (EV_A_ (W)w, 1); 3922 ev_start (EV_A_ (W)w, 1);
3548 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3923 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3549 wlist_add (&anfds[fd].head, (WL)w); 3924 wlist_add (&anfds[fd].head, (WL)w);
3550 3925
3551 /* common bug, apparently */ 3926 /* common bug, apparently */
3552 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3927 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3553 3928
… …
3555 w->events &= ~EV__IOFDSET; 3930 w->events &= ~EV__IOFDSET;
3556 3931
3557 EV_FREQUENT_CHECK; 3932 EV_FREQUENT_CHECK;
3558} 3933}
3559 3934
3560void noinline 3935noinline
3936void
3561ev_io_stop (EV_P_ ev_io *w) EV_THROW 3937ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3562{ 3938{
3563 clear_pending (EV_A_ (W)w); 3939 clear_pending (EV_A_ (W)w);
3564 if (expect_false (!ev_is_active (w))) 3940 if (expect_false (!ev_is_active (w)))
3565 return; 3941 return;
3566 3942
… …
3574 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3950 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3575 3951
3576 EV_FREQUENT_CHECK; 3952 EV_FREQUENT_CHECK;
3577} 3953}
3578 3954
3579void noinline 3955noinline
3956void
3580ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3957ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3581{ 3958{
3582 if (expect_false (ev_is_active (w))) 3959 if (expect_false (ev_is_active (w)))
3583 return; 3960 return;
3584 3961
3585 ev_at (w) += mn_now; 3962 ev_at (w) += mn_now;
… …
3588 3965
3589 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3590 3967
3591 ++timercnt; 3968 ++timercnt;
3592 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3969 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3593 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3970 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3594 ANHE_w (timers [ev_active (w)]) = (WT)w; 3971 ANHE_w (timers [ev_active (w)]) = (WT)w;
3595 ANHE_at_cache (timers [ev_active (w)]); 3972 ANHE_at_cache (timers [ev_active (w)]);
3596 upheap (timers, ev_active (w)); 3973 upheap (timers, ev_active (w));
3597 3974
3598 EV_FREQUENT_CHECK; 3975 EV_FREQUENT_CHECK;
3599 3976
3600 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3977 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3601} 3978}
3602 3979
3603void noinline 3980noinline
3981void
3604ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3982ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3605{ 3983{
3606 clear_pending (EV_A_ (W)w); 3984 clear_pending (EV_A_ (W)w);
3607 if (expect_false (!ev_is_active (w))) 3985 if (expect_false (!ev_is_active (w)))
3608 return; 3986 return;
3609 3987
… …
3628 ev_stop (EV_A_ (W)w); 4006 ev_stop (EV_A_ (W)w);
3629 4007
3630 EV_FREQUENT_CHECK; 4008 EV_FREQUENT_CHECK;
3631} 4009}
3632 4010
3633void noinline 4011noinline
4012void
3634ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4013ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3635{ 4014{
3636 EV_FREQUENT_CHECK; 4015 EV_FREQUENT_CHECK;
3637 4016
3638 clear_pending (EV_A_ (W)w); 4017 clear_pending (EV_A_ (W)w);
3639 4018
… …
3656 4035
3657 EV_FREQUENT_CHECK; 4036 EV_FREQUENT_CHECK;
3658} 4037}
3659 4038
3660ev_tstamp 4039ev_tstamp
3661ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4040ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3662{ 4041{
3663 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4042 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3664} 4043}
3665 4044
3666#if EV_PERIODIC_ENABLE 4045#if EV_PERIODIC_ENABLE
3667void noinline 4046noinline
4047void
3668ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4048ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3669{ 4049{
3670 if (expect_false (ev_is_active (w))) 4050 if (expect_false (ev_is_active (w)))
3671 return; 4051 return;
3672 4052
3673 if (w->reschedule_cb) 4053 if (w->reschedule_cb)
… …
3682 4062
3683 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3684 4064
3685 ++periodiccnt; 4065 ++periodiccnt;
3686 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4066 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3687 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4067 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3688 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4068 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3689 ANHE_at_cache (periodics [ev_active (w)]); 4069 ANHE_at_cache (periodics [ev_active (w)]);
3690 upheap (periodics, ev_active (w)); 4070 upheap (periodics, ev_active (w));
3691 4071
3692 EV_FREQUENT_CHECK; 4072 EV_FREQUENT_CHECK;
3693 4073
3694 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4074 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3695} 4075}
3696 4076
3697void noinline 4077noinline
4078void
3698ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4079ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3699{ 4080{
3700 clear_pending (EV_A_ (W)w); 4081 clear_pending (EV_A_ (W)w);
3701 if (expect_false (!ev_is_active (w))) 4082 if (expect_false (!ev_is_active (w)))
3702 return; 4083 return;
3703 4084
… …
3720 ev_stop (EV_A_ (W)w); 4101 ev_stop (EV_A_ (W)w);
3721 4102
3722 EV_FREQUENT_CHECK; 4103 EV_FREQUENT_CHECK;
3723} 4104}
3724 4105
3725void noinline 4106noinline
4107void
3726ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4108ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3727{ 4109{
3728 /* TODO: use adjustheap and recalculation */ 4110 /* TODO: use adjustheap and recalculation */
3729 ev_periodic_stop (EV_A_ w); 4111 ev_periodic_stop (EV_A_ w);
3730 ev_periodic_start (EV_A_ w); 4112 ev_periodic_start (EV_A_ w);
3731} 4113}
… …
3735# define SA_RESTART 0 4117# define SA_RESTART 0
3736#endif 4118#endif
3737 4119
3738#if EV_SIGNAL_ENABLE 4120#if EV_SIGNAL_ENABLE
3739 4121
3740void noinline 4122noinline
4123void
3741ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4124ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3742{ 4125{
3743 if (expect_false (ev_is_active (w))) 4126 if (expect_false (ev_is_active (w)))
3744 return; 4127 return;
3745 4128
3746 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4129 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3817 } 4200 }
3818 4201
3819 EV_FREQUENT_CHECK; 4202 EV_FREQUENT_CHECK;
3820} 4203}
3821 4204
3822void noinline 4205noinline
4206void
3823ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4207ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3824{ 4208{
3825 clear_pending (EV_A_ (W)w); 4209 clear_pending (EV_A_ (W)w);
3826 if (expect_false (!ev_is_active (w))) 4210 if (expect_false (!ev_is_active (w)))
3827 return; 4211 return;
3828 4212
… …
3859#endif 4243#endif
3860 4244
3861#if EV_CHILD_ENABLE 4245#if EV_CHILD_ENABLE
3862 4246
3863void 4247void
3864ev_child_start (EV_P_ ev_child *w) EV_THROW 4248ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3865{ 4249{
3866#if EV_MULTIPLICITY 4250#if EV_MULTIPLICITY
3867 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4251 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3868#endif 4252#endif
3869 if (expect_false (ev_is_active (w))) 4253 if (expect_false (ev_is_active (w)))
… …
3876 4260
3877 EV_FREQUENT_CHECK; 4261 EV_FREQUENT_CHECK;
3878} 4262}
3879 4263
3880void 4264void
3881ev_child_stop (EV_P_ ev_child *w) EV_THROW 4265ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3882{ 4266{
3883 clear_pending (EV_A_ (W)w); 4267 clear_pending (EV_A_ (W)w);
3884 if (expect_false (!ev_is_active (w))) 4268 if (expect_false (!ev_is_active (w)))
3885 return; 4269 return;
3886 4270
… …
3903 4287
3904#define DEF_STAT_INTERVAL 5.0074891 4288#define DEF_STAT_INTERVAL 5.0074891
3905#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4289#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3906#define MIN_STAT_INTERVAL 0.1074891 4290#define MIN_STAT_INTERVAL 0.1074891
3907 4291
3908static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4292noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3909 4293
3910#if EV_USE_INOTIFY 4294#if EV_USE_INOTIFY
3911 4295
3912/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4296/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3913# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4297# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3914 4298
3915static void noinline 4299noinline
4300static void
3916infy_add (EV_P_ ev_stat *w) 4301infy_add (EV_P_ ev_stat *w)
3917{ 4302{
3918 w->wd = inotify_add_watch (fs_fd, w->path, 4303 w->wd = inotify_add_watch (fs_fd, w->path,
3919 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4304 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3920 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4305 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3984 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4369 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3985 ev_timer_again (EV_A_ &w->timer); 4370 ev_timer_again (EV_A_ &w->timer);
3986 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4371 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3987} 4372}
3988 4373
3989static void noinline 4374noinline
4375static void
3990infy_del (EV_P_ ev_stat *w) 4376infy_del (EV_P_ ev_stat *w)
3991{ 4377{
3992 int slot; 4378 int slot;
3993 int wd = w->wd; 4379 int wd = w->wd;
3994 4380
… …
4001 4387
4002 /* remove this watcher, if others are watching it, they will rearm */ 4388 /* remove this watcher, if others are watching it, they will rearm */
4003 inotify_rm_watch (fs_fd, wd); 4389 inotify_rm_watch (fs_fd, wd);
4004} 4390}
4005 4391
4006static void noinline 4392noinline
4393static void
4007infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4394infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4008{ 4395{
4009 if (slot < 0) 4396 if (slot < 0)
4010 /* overflow, need to check for all hash slots */ 4397 /* overflow, need to check for all hash slots */
4011 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4398 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4047 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4434 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4048 ofs += sizeof (struct inotify_event) + ev->len; 4435 ofs += sizeof (struct inotify_event) + ev->len;
4049 } 4436 }
4050} 4437}
4051 4438
4052inline_size void ecb_cold 4439inline_size ecb_cold
4440void
4053ev_check_2625 (EV_P) 4441ev_check_2625 (EV_P)
4054{ 4442{
4055 /* kernels < 2.6.25 are borked 4443 /* kernels < 2.6.25 are borked
4056 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4444 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4057 */ 4445 */
… …
4147#else 4535#else
4148# define EV_LSTAT(p,b) lstat (p, b) 4536# define EV_LSTAT(p,b) lstat (p, b)
4149#endif 4537#endif
4150 4538
4151void 4539void
4152ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4540ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4153{ 4541{
4154 if (lstat (w->path, &w->attr) < 0) 4542 if (lstat (w->path, &w->attr) < 0)
4155 w->attr.st_nlink = 0; 4543 w->attr.st_nlink = 0;
4156 else if (!w->attr.st_nlink) 4544 else if (!w->attr.st_nlink)
4157 w->attr.st_nlink = 1; 4545 w->attr.st_nlink = 1;
4158} 4546}
4159 4547
4160static void noinline 4548noinline
4549static void
4161stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4550stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4162{ 4551{
4163 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4552 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4164 4553
4165 ev_statdata prev = w->attr; 4554 ev_statdata prev = w->attr;
… …
4196 ev_feed_event (EV_A_ w, EV_STAT); 4585 ev_feed_event (EV_A_ w, EV_STAT);
4197 } 4586 }
4198} 4587}
4199 4588
4200void 4589void
4201ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4590ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4202{ 4591{
4203 if (expect_false (ev_is_active (w))) 4592 if (expect_false (ev_is_active (w)))
4204 return; 4593 return;
4205 4594
4206 ev_stat_stat (EV_A_ w); 4595 ev_stat_stat (EV_A_ w);
… …
4227 4616
4228 EV_FREQUENT_CHECK; 4617 EV_FREQUENT_CHECK;
4229} 4618}
4230 4619
4231void 4620void
4232ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4621ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4233{ 4622{
4234 clear_pending (EV_A_ (W)w); 4623 clear_pending (EV_A_ (W)w);
4235 if (expect_false (!ev_is_active (w))) 4624 if (expect_false (!ev_is_active (w)))
4236 return; 4625 return;
4237 4626
… …
4253} 4642}
4254#endif 4643#endif
4255 4644
4256#if EV_IDLE_ENABLE 4645#if EV_IDLE_ENABLE
4257void 4646void
4258ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4647ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4259{ 4648{
4260 if (expect_false (ev_is_active (w))) 4649 if (expect_false (ev_is_active (w)))
4261 return; 4650 return;
4262 4651
4263 pri_adjust (EV_A_ (W)w); 4652 pri_adjust (EV_A_ (W)w);
… …
4268 int active = ++idlecnt [ABSPRI (w)]; 4657 int active = ++idlecnt [ABSPRI (w)];
4269 4658
4270 ++idleall; 4659 ++idleall;
4271 ev_start (EV_A_ (W)w, active); 4660 ev_start (EV_A_ (W)w, active);
4272 4661
4273 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4662 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4274 idles [ABSPRI (w)][active - 1] = w; 4663 idles [ABSPRI (w)][active - 1] = w;
4275 } 4664 }
4276 4665
4277 EV_FREQUENT_CHECK; 4666 EV_FREQUENT_CHECK;
4278} 4667}
4279 4668
4280void 4669void
4281ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4670ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4282{ 4671{
4283 clear_pending (EV_A_ (W)w); 4672 clear_pending (EV_A_ (W)w);
4284 if (expect_false (!ev_is_active (w))) 4673 if (expect_false (!ev_is_active (w)))
4285 return; 4674 return;
4286 4675
… …
4300} 4689}
4301#endif 4690#endif
4302 4691
4303#if EV_PREPARE_ENABLE 4692#if EV_PREPARE_ENABLE
4304void 4693void
4305ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4694ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4306{ 4695{
4307 if (expect_false (ev_is_active (w))) 4696 if (expect_false (ev_is_active (w)))
4308 return; 4697 return;
4309 4698
4310 EV_FREQUENT_CHECK; 4699 EV_FREQUENT_CHECK;
4311 4700
4312 ev_start (EV_A_ (W)w, ++preparecnt); 4701 ev_start (EV_A_ (W)w, ++preparecnt);
4313 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4702 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4314 prepares [preparecnt - 1] = w; 4703 prepares [preparecnt - 1] = w;
4315 4704
4316 EV_FREQUENT_CHECK; 4705 EV_FREQUENT_CHECK;
4317} 4706}
4318 4707
4319void 4708void
4320ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4709ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4321{ 4710{
4322 clear_pending (EV_A_ (W)w); 4711 clear_pending (EV_A_ (W)w);
4323 if (expect_false (!ev_is_active (w))) 4712 if (expect_false (!ev_is_active (w)))
4324 return; 4713 return;
4325 4714
… …
4338} 4727}
4339#endif 4728#endif
4340 4729
4341#if EV_CHECK_ENABLE 4730#if EV_CHECK_ENABLE
4342void 4731void
4343ev_check_start (EV_P_ ev_check *w) EV_THROW 4732ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4344{ 4733{
4345 if (expect_false (ev_is_active (w))) 4734 if (expect_false (ev_is_active (w)))
4346 return; 4735 return;
4347 4736
4348 EV_FREQUENT_CHECK; 4737 EV_FREQUENT_CHECK;
4349 4738
4350 ev_start (EV_A_ (W)w, ++checkcnt); 4739 ev_start (EV_A_ (W)w, ++checkcnt);
4351 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4740 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4352 checks [checkcnt - 1] = w; 4741 checks [checkcnt - 1] = w;
4353 4742
4354 EV_FREQUENT_CHECK; 4743 EV_FREQUENT_CHECK;
4355} 4744}
4356 4745
4357void 4746void
4358ev_check_stop (EV_P_ ev_check *w) EV_THROW 4747ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4359{ 4748{
4360 clear_pending (EV_A_ (W)w); 4749 clear_pending (EV_A_ (W)w);
4361 if (expect_false (!ev_is_active (w))) 4750 if (expect_false (!ev_is_active (w)))
4362 return; 4751 return;
4363 4752
… …
4375 EV_FREQUENT_CHECK; 4764 EV_FREQUENT_CHECK;
4376} 4765}
4377#endif 4766#endif
4378 4767
4379#if EV_EMBED_ENABLE 4768#if EV_EMBED_ENABLE
4380void noinline 4769noinline
4770void
4381ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4771ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4382{ 4772{
4383 ev_run (w->other, EVRUN_NOWAIT); 4773 ev_run (w->other, EVRUN_NOWAIT);
4384} 4774}
4385 4775
4386static void 4776static void
… …
4434 ev_idle_stop (EV_A_ idle); 4824 ev_idle_stop (EV_A_ idle);
4435} 4825}
4436#endif 4826#endif
4437 4827
4438void 4828void
4439ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4829ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4440{ 4830{
4441 if (expect_false (ev_is_active (w))) 4831 if (expect_false (ev_is_active (w)))
4442 return; 4832 return;
4443 4833
4444 { 4834 {
… …
4465 4855
4466 EV_FREQUENT_CHECK; 4856 EV_FREQUENT_CHECK;
4467} 4857}
4468 4858
4469void 4859void
4470ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4860ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4471{ 4861{
4472 clear_pending (EV_A_ (W)w); 4862 clear_pending (EV_A_ (W)w);
4473 if (expect_false (!ev_is_active (w))) 4863 if (expect_false (!ev_is_active (w)))
4474 return; 4864 return;
4475 4865
… …
4485} 4875}
4486#endif 4876#endif
4487 4877
4488#if EV_FORK_ENABLE 4878#if EV_FORK_ENABLE
4489void 4879void
4490ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4880ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4491{ 4881{
4492 if (expect_false (ev_is_active (w))) 4882 if (expect_false (ev_is_active (w)))
4493 return; 4883 return;
4494 4884
4495 EV_FREQUENT_CHECK; 4885 EV_FREQUENT_CHECK;
4496 4886
4497 ev_start (EV_A_ (W)w, ++forkcnt); 4887 ev_start (EV_A_ (W)w, ++forkcnt);
4498 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4888 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4499 forks [forkcnt - 1] = w; 4889 forks [forkcnt - 1] = w;
4500 4890
4501 EV_FREQUENT_CHECK; 4891 EV_FREQUENT_CHECK;
4502} 4892}
4503 4893
4504void 4894void
4505ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4895ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4506{ 4896{
4507 clear_pending (EV_A_ (W)w); 4897 clear_pending (EV_A_ (W)w);
4508 if (expect_false (!ev_is_active (w))) 4898 if (expect_false (!ev_is_active (w)))
4509 return; 4899 return;
4510 4900
… …
4523} 4913}
4524#endif 4914#endif
4525 4915
4526#if EV_CLEANUP_ENABLE 4916#if EV_CLEANUP_ENABLE
4527void 4917void
4528ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4918ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4529{ 4919{
4530 if (expect_false (ev_is_active (w))) 4920 if (expect_false (ev_is_active (w)))
4531 return; 4921 return;
4532 4922
4533 EV_FREQUENT_CHECK; 4923 EV_FREQUENT_CHECK;
4534 4924
4535 ev_start (EV_A_ (W)w, ++cleanupcnt); 4925 ev_start (EV_A_ (W)w, ++cleanupcnt);
4536 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4926 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4537 cleanups [cleanupcnt - 1] = w; 4927 cleanups [cleanupcnt - 1] = w;
4538 4928
4539 /* cleanup watchers should never keep a refcount on the loop */ 4929 /* cleanup watchers should never keep a refcount on the loop */
4540 ev_unref (EV_A); 4930 ev_unref (EV_A);
4541 EV_FREQUENT_CHECK; 4931 EV_FREQUENT_CHECK;
4542} 4932}
4543 4933
4544void 4934void
4545ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4935ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4546{ 4936{
4547 clear_pending (EV_A_ (W)w); 4937 clear_pending (EV_A_ (W)w);
4548 if (expect_false (!ev_is_active (w))) 4938 if (expect_false (!ev_is_active (w)))
4549 return; 4939 return;
4550 4940
… …
4564} 4954}
4565#endif 4955#endif
4566 4956
4567#if EV_ASYNC_ENABLE 4957#if EV_ASYNC_ENABLE
4568void 4958void
4569ev_async_start (EV_P_ ev_async *w) EV_THROW 4959ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4570{ 4960{
4571 if (expect_false (ev_is_active (w))) 4961 if (expect_false (ev_is_active (w)))
4572 return; 4962 return;
4573 4963
4574 w->sent = 0; 4964 w->sent = 0;
… …
4576 evpipe_init (EV_A); 4966 evpipe_init (EV_A);
4577 4967
4578 EV_FREQUENT_CHECK; 4968 EV_FREQUENT_CHECK;
4579 4969
4580 ev_start (EV_A_ (W)w, ++asynccnt); 4970 ev_start (EV_A_ (W)w, ++asynccnt);
4581 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4971 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4582 asyncs [asynccnt - 1] = w; 4972 asyncs [asynccnt - 1] = w;
4583 4973
4584 EV_FREQUENT_CHECK; 4974 EV_FREQUENT_CHECK;
4585} 4975}
4586 4976
4587void 4977void
4588ev_async_stop (EV_P_ ev_async *w) EV_THROW 4978ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4589{ 4979{
4590 clear_pending (EV_A_ (W)w); 4980 clear_pending (EV_A_ (W)w);
4591 if (expect_false (!ev_is_active (w))) 4981 if (expect_false (!ev_is_active (w)))
4592 return; 4982 return;
4593 4983
… …
4604 4994
4605 EV_FREQUENT_CHECK; 4995 EV_FREQUENT_CHECK;
4606} 4996}
4607 4997
4608void 4998void
4609ev_async_send (EV_P_ ev_async *w) EV_THROW 4999ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4610{ 5000{
4611 w->sent = 1; 5001 w->sent = 1;
4612 evpipe_write (EV_A_ &async_pending); 5002 evpipe_write (EV_A_ &async_pending);
4613} 5003}
4614#endif 5004#endif
… …
4651 5041
4652 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5042 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4653} 5043}
4654 5044
4655void 5045void
4656ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5046ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4657{ 5047{
4658 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5048 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4659
4660 if (expect_false (!once))
4661 {
4662 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4663 return;
4664 }
4665 5049
4666 once->cb = cb; 5050 once->cb = cb;
4667 once->arg = arg; 5051 once->arg = arg;
4668 5052
4669 ev_init (&once->io, once_cb_io); 5053 ev_init (&once->io, once_cb_io);
… …
4682} 5066}
4683 5067
4684/*****************************************************************************/ 5068/*****************************************************************************/
4685 5069
4686#if EV_WALK_ENABLE 5070#if EV_WALK_ENABLE
4687void ecb_cold 5071ecb_cold
5072void
4688ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5073ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4689{ 5074{
4690 int i, j; 5075 int i, j;
4691 ev_watcher_list *wl, *wn; 5076 ev_watcher_list *wl, *wn;
4692 5077
4693 if (types & (EV_IO | EV_EMBED)) 5078 if (types & (EV_IO | EV_EMBED))

Diff Legend

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