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

Comparing libev/ev.c (file contents):
Revision 1.450 by root, Mon Oct 8 15:43:35 2012 UTC vs.
Revision 1.494 by root, Sun Jun 23 23:28:45 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
312#ifndef EV_USE_INOTIFY 337#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 339# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 340# else
316# define EV_USE_INOTIFY 0 341# define EV_USE_INOTIFY 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 380# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 381#endif
357 382
358#ifndef EV_HEAP_CACHE_AT 383#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 384# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
385#endif
386
387#ifdef __ANDROID__
388/* supposedly, android doesn't typedef fd_mask */
389# undef EV_USE_SELECT
390# define EV_USE_SELECT 0
391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
392# undef EV_USE_CLOCK_SYSCALL
393# define EV_USE_CLOCK_SYSCALL 0
394#endif
395
396/* aix's poll.h seems to cause lots of trouble */
397#ifdef _AIX
398/* AIX has a completely broken poll.h header */
399# undef EV_USE_POLL
400# define EV_USE_POLL 0
360#endif 401#endif
361 402
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 403/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */ 404/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 405#if EV_USE_CLOCK_SYSCALL
… …
373# endif 414# endif
374#endif 415#endif
375 416
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 417/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377 418
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
384#ifndef CLOCK_MONOTONIC 419#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 420# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 421# define EV_USE_MONOTONIC 0
387#endif 422#endif
388 423
… …
398 433
399#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
400/* hp-ux has it in sys/time.h, which we unconditionally include above */ 435/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux 436# if !defined _WIN32 && !defined __hpux
402# include <sys/select.h> 437# include <sys/select.h>
438# endif
439#endif
440
441#if EV_USE_LINUXAIO
442# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL
444# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0
403# endif 446# endif
404#endif 447#endif
405 448
406#if EV_USE_INOTIFY 449#if EV_USE_INOTIFY
407# include <sys/statfs.h> 450# include <sys/statfs.h>
… …
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
477/* 520/*
478 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
479 * 522 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 525 * All rights reserved.
483 * 526 *
484 * Redistribution and use in source and binary forms, with or without modifica- 527 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 542 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 545 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 546 * OF THE POSSIBILITY OF SUCH DAMAGE.
547 *
548 * Alternatively, the contents of this file may be used under the terms of
549 * the GNU General Public License ("GPL") version 2 or any later version,
550 * in which case the provisions of the GPL are applicable instead of
551 * the above. If you wish to allow the use of your version of this file
552 * only under the terms of the GPL and not to allow others to use your
553 * version of this file under the BSD license, indicate your decision
554 * by deleting the provisions above and replace them with the notice
555 * and other provisions required by the GPL. If you do not delete the
556 * provisions above, a recipient may use your version of this file under
557 * either the BSD or the GPL.
504 */ 558 */
505 559
506#ifndef ECB_H 560#ifndef ECB_H
507#define ECB_H 561#define ECB_H
508 562
509/* 16 bits major, 16 bits minor */ 563/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010002 564#define ECB_VERSION 0x00010005
511 565
512#ifdef _WIN32 566#ifdef _WIN32
513 typedef signed char int8_t; 567 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
532 typedef uint32_t uintptr_t; 586 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 587 typedef int32_t intptr_t;
534 #endif 588 #endif
535#else 589#else
536 #include <inttypes.h> 590 #include <inttypes.h>
537 #if UINTMAX_MAX > 0xffffffffU 591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
538 #define ECB_PTRSIZE 8 592 #define ECB_PTRSIZE 8
539 #else 593 #else
540 #define ECB_PTRSIZE 4 594 #define ECB_PTRSIZE 4
595 #endif
596#endif
597
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
600
601/* work around x32 idiocy by defining proper macros */
602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
603 #if _ILP32
604 #define ECB_AMD64_X32 1
605 #else
606 #define ECB_AMD64 1
541 #endif 607 #endif
542#endif 608#endif
543 609
544/* many compilers define _GNUC_ to some versions but then only implement 610/* many compilers define _GNUC_ to some versions but then only implement
545 * what their idiot authors think are the "more important" extensions, 611 * what their idiot authors think are the "more important" extensions,
546 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
547 * or so. 613 * or so.
548 * 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
549 * 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.
550 */ 616 */
551#ifndef ECB_GCC_VERSION
552 #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__
553 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
554 #else 619#else
555 #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)))
556 #endif 621#endif
557#endif
558 622
559#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)))
560#define ECB_C99 (__STDC_VERSION__ >= 199901L) 624
561#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
562#define ECB_CPP (__cplusplus+0) 637#define ECB_CPP (__cplusplus+0)
563#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)
564 653
565#if ECB_CPP 654#if ECB_CPP
566 #define ECB_EXTERN_C extern "C" 655 #define ECB_EXTERN_C extern "C"
567 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 656 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
568 #define ECB_EXTERN_C_END } 657 #define ECB_EXTERN_C_END }
… …
581 #define ECB_NO_SMP 1 670 #define ECB_NO_SMP 1
582#endif 671#endif
583 672
584#if ECB_NO_SMP 673#if ECB_NO_SMP
585 #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 */
586#endif 684#endif
587 685
588#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
589 #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
590 #if __i386 || __i386__ 688 #if __i386 || __i386__
591 #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")
592 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 690 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
593 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 691 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
594 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 692 #elif ECB_GCC_AMD64
595 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 693 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
596 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 694 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
597 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 695 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
598 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 696 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
599 #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 */
600 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 705 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
601 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 706 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
707 || defined __ARM_ARCH_6T2__
602 #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")
603 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 709 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
604 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 710 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 711 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
606 #elif __sparc || __sparc__ 712 #elif __aarch64__
713 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
714 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
607 #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")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 716 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 717 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
610 #elif defined __s390__ || defined __s390x__ 718 #elif defined __s390__ || defined __s390x__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 719 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
612 #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. */
613 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 723 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
614 #elif defined __alpha__ 724 #elif defined __alpha__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 725 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
616 #elif defined __hppa__ 726 #elif defined __hppa__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 727 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
618 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 728 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
619 #elif defined __ia64__ 729 #elif defined __ia64__
620 #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")
621 #endif 737 #endif
622 #endif 738 #endif
623#endif 739#endif
624 740
625#ifndef ECB_MEMORY_FENCE 741#ifndef ECB_MEMORY_FENCE
626 #if ECB_GCC_VERSION(4,7) 742 #if ECB_GCC_VERSION(4,7)
627 /* see comment below (stdatomic.h) about the C11 memory model. */ 743 /* see comment below (stdatomic.h) about the C11 memory model. */
628 #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)
629 747
630 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 748 #elif ECB_CLANG_EXTENSION(c_atomic)
631 * without risking compile time errors with other compilers. We *could*
632 * define our own ecb_clang_has_feature, but I just can't be bothered to work
633 * around this shit time and again.
634 * #elif defined __clang && __has_feature (cxx_atomic)
635 * // see comment below (stdatomic.h) about the C11 memory model. 749 /* see comment below (stdatomic.h) about the C11 memory model. */
636 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 750 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
637 */ 751 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
752 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
638 753
639 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 754 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
640 #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()
641 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 762 #elif _MSC_VER >= 1400 /* VC++ 2005 */
642 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 763 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
643 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 764 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
644 #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 */
645 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 766 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
665 /* 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. */
666 /* 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 */
667 /* for most usages, or gcc and clang have a bug */ 788 /* for most usages, or gcc and clang have a bug */
668 /* I *currently* lean towards the latter, and inefficiently implement */ 789 /* I *currently* lean towards the latter, and inefficiently implement */
669 /* 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 */
670 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 793 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
671 #endif 794 #endif
672#endif 795#endif
673 796
674#ifndef ECB_MEMORY_FENCE 797#ifndef ECB_MEMORY_FENCE
… …
697 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 820 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
698#endif 821#endif
699 822
700/*****************************************************************************/ 823/*****************************************************************************/
701 824
702#if __cplusplus 825#if ECB_CPP
703 #define ecb_inline static inline 826 #define ecb_inline static inline
704#elif ECB_GCC_VERSION(2,5) 827#elif ECB_GCC_VERSION(2,5)
705 #define ecb_inline static __inline__ 828 #define ecb_inline static __inline__
706#elif ECB_C99 829#elif ECB_C99
707 #define ecb_inline static inline 830 #define ecb_inline static inline
… …
721 844
722#define ECB_CONCAT_(a, b) a ## b 845#define ECB_CONCAT_(a, b) a ## b
723#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 846#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
724#define ECB_STRINGIFY_(a) # a 847#define ECB_STRINGIFY_(a) # a
725#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))
726 850
727#define ecb_function_ ecb_inline 851#define ecb_function_ ecb_inline
728 852
729#if ECB_GCC_VERSION(3,1) 853#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
730 #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)
731 #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)
732 #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)
733 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 876 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
734#else 877#else
735 #define ecb_attribute(attrlist)
736 #define ecb_is_constant(expr) 0
737 #define ecb_expect(expr,value) (expr)
738 #define ecb_prefetch(addr,rw,locality) 878 #define ecb_prefetch(addr,rw,locality)
739#endif 879#endif
740 880
741/* no emulation for ecb_decltype */ 881/* no emulation for ecb_decltype */
742#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; };
743 #define ecb_decltype(x) __decltype(x) 885 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
744#elif ECB_GCC_VERSION(3,0) 886#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
745 #define ecb_decltype(x) __typeof(x) 887 #define ecb_decltype(x) __typeof__ (x)
746#endif 888#endif
747 889
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
748#define ecb_noinline ecb_attribute ((__noinline__)) 907 #define ecb_noinline ecb_attribute ((__noinline__))
908#endif
909
749#define ecb_unused ecb_attribute ((__unused__)) 910#define ecb_unused ecb_attribute ((__unused__))
750#define ecb_const ecb_attribute ((__const__)) 911#define ecb_const ecb_attribute ((__const__))
751#define ecb_pure ecb_attribute ((__pure__)) 912#define ecb_pure ecb_attribute ((__pure__))
752 913
753#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 */
754 #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)
755#else 922#else
756 #define ecb_noreturn ecb_attribute ((__noreturn__)) 923 #define ecb_noreturn ecb_attribute ((__noreturn__))
757#endif 924#endif
758 925
759#if ECB_GCC_VERSION(4,3) 926#if ECB_GCC_VERSION(4,3)
… …
774/* for compatibility to the rest of the world */ 941/* for compatibility to the rest of the world */
775#define ecb_likely(expr) ecb_expect_true (expr) 942#define ecb_likely(expr) ecb_expect_true (expr)
776#define ecb_unlikely(expr) ecb_expect_false (expr) 943#define ecb_unlikely(expr) ecb_expect_false (expr)
777 944
778/* count trailing zero bits and count # of one bits */ 945/* count trailing zero bits and count # of one bits */
779#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))
780 /* 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 */
781 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 951 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
782 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 952 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
783 #define ecb_ctz32(x) __builtin_ctz (x) 953 #define ecb_ctz32(x) __builtin_ctz (x)
784 #define ecb_ctz64(x) __builtin_ctzll (x) 954 #define ecb_ctz64(x) __builtin_ctzll (x)
785 #define ecb_popcount32(x) __builtin_popcount (x) 955 #define ecb_popcount32(x) __builtin_popcount (x)
786 /* no popcountll */ 956 /* no popcountll */
787#else 957#else
788 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 958 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
789 ecb_function_ int 959 ecb_function_ ecb_const int
790 ecb_ctz32 (uint32_t x) 960 ecb_ctz32 (uint32_t x)
791 { 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
792 int r = 0; 967 int r = 0;
793 968
794 x &= ~x + 1; /* this isolates the lowest bit */ 969 x &= ~x + 1; /* this isolates the lowest bit */
795 970
796#if ECB_branchless_on_i386 971#if ECB_branchless_on_i386
… …
806 if (x & 0xff00ff00) r += 8; 981 if (x & 0xff00ff00) r += 8;
807 if (x & 0xffff0000) r += 16; 982 if (x & 0xffff0000) r += 16;
808#endif 983#endif
809 984
810 return r; 985 return r;
986#endif
811 } 987 }
812 988
813 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 989 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
814 ecb_function_ int 990 ecb_function_ ecb_const int
815 ecb_ctz64 (uint64_t x) 991 ecb_ctz64 (uint64_t x)
816 { 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
817 int shift = x & 0xffffffffU ? 0 : 32; 998 int shift = x & 0xffffffff ? 0 : 32;
818 return ecb_ctz32 (x >> shift) + shift; 999 return ecb_ctz32 (x >> shift) + shift;
1000#endif
819 } 1001 }
820 1002
821 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1003 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
822 ecb_function_ int 1004 ecb_function_ ecb_const int
823 ecb_popcount32 (uint32_t x) 1005 ecb_popcount32 (uint32_t x)
824 { 1006 {
825 x -= (x >> 1) & 0x55555555; 1007 x -= (x >> 1) & 0x55555555;
826 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1008 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
827 x = ((x >> 4) + x) & 0x0f0f0f0f; 1009 x = ((x >> 4) + x) & 0x0f0f0f0f;
828 x *= 0x01010101; 1010 x *= 0x01010101;
829 1011
830 return x >> 24; 1012 return x >> 24;
831 } 1013 }
832 1014
833 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1015 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
834 ecb_function_ int ecb_ld32 (uint32_t x) 1016 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
835 { 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
836 int r = 0; 1023 int r = 0;
837 1024
838 if (x >> 16) { x >>= 16; r += 16; } 1025 if (x >> 16) { x >>= 16; r += 16; }
839 if (x >> 8) { x >>= 8; r += 8; } 1026 if (x >> 8) { x >>= 8; r += 8; }
840 if (x >> 4) { x >>= 4; r += 4; } 1027 if (x >> 4) { x >>= 4; r += 4; }
841 if (x >> 2) { x >>= 2; r += 2; } 1028 if (x >> 2) { x >>= 2; r += 2; }
842 if (x >> 1) { r += 1; } 1029 if (x >> 1) { r += 1; }
843 1030
844 return r; 1031 return r;
1032#endif
845 } 1033 }
846 1034
847 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1035 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
848 ecb_function_ int ecb_ld64 (uint64_t x) 1036 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
849 { 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
850 int r = 0; 1043 int r = 0;
851 1044
852 if (x >> 32) { x >>= 32; r += 32; } 1045 if (x >> 32) { x >>= 32; r += 32; }
853 1046
854 return r + ecb_ld32 (x); 1047 return r + ecb_ld32 (x);
1048#endif
855 } 1049 }
856#endif 1050#endif
857 1051
858ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1052ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
859ecb_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)); }
860ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1054ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
861ecb_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)); }
862 1056
863ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1057ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
864ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1058ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
865{ 1059{
866 return ( (x * 0x0802U & 0x22110U) 1060 return ( (x * 0x0802U & 0x22110U)
867 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1061 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
868} 1062}
869 1063
870ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1064ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
871ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1065ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
872{ 1066{
873 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1067 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
874 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1068 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
875 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1069 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
876 x = ( x >> 8 ) | ( x << 8); 1070 x = ( x >> 8 ) | ( x << 8);
877 1071
878 return x; 1072 return x;
879} 1073}
880 1074
881ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1075ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
882ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1076ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
883{ 1077{
884 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1078 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
885 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1079 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
886 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1080 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
887 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1081 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
890 return x; 1084 return x;
891} 1085}
892 1086
893/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1087/* popcount64 is only available on 64 bit cpus as gcc builtin */
894/* so for this version we are lazy */ 1088/* so for this version we are lazy */
895ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1089ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
896ecb_function_ int 1090ecb_function_ ecb_const int
897ecb_popcount64 (uint64_t x) 1091ecb_popcount64 (uint64_t x)
898{ 1092{
899 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1093 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
900} 1094}
901 1095
902ecb_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);
903ecb_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);
904ecb_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);
905ecb_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);
906ecb_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);
907ecb_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);
908ecb_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);
909ecb_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);
910 1104
911ecb_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); }
912ecb_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); }
913ecb_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); }
914ecb_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); }
915ecb_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); }
916ecb_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); }
917ecb_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); }
918ecb_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); }
919 1113
920#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
921 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1118 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1119 #endif
922 #define ecb_bswap32(x) __builtin_bswap32 (x) 1120 #define ecb_bswap32(x) __builtin_bswap32 (x)
923 #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)))
924#else 1127#else
925 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1128 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
926 ecb_function_ uint16_t 1129 ecb_function_ ecb_const uint16_t
927 ecb_bswap16 (uint16_t x) 1130 ecb_bswap16 (uint16_t x)
928 { 1131 {
929 return ecb_rotl16 (x, 8); 1132 return ecb_rotl16 (x, 8);
930 } 1133 }
931 1134
932 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1135 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
933 ecb_function_ uint32_t 1136 ecb_function_ ecb_const uint32_t
934 ecb_bswap32 (uint32_t x) 1137 ecb_bswap32 (uint32_t x)
935 { 1138 {
936 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1139 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
937 } 1140 }
938 1141
939 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1142 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
940 ecb_function_ uint64_t 1143 ecb_function_ ecb_const uint64_t
941 ecb_bswap64 (uint64_t x) 1144 ecb_bswap64 (uint64_t x)
942 { 1145 {
943 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1146 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
944 } 1147 }
945#endif 1148#endif
946 1149
947#if ECB_GCC_VERSION(4,5) 1150#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
948 #define ecb_unreachable() __builtin_unreachable () 1151 #define ecb_unreachable() __builtin_unreachable ()
949#else 1152#else
950 /* 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 :/ */
951 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1154 ecb_inline ecb_noreturn void ecb_unreachable (void);
952 ecb_inline void ecb_unreachable (void) { } 1155 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
953#endif 1156#endif
954 1157
955/* try to tell the compiler that some condition is definitely true */ 1158/* try to tell the compiler that some condition is definitely true */
956#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1159#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
957 1160
958ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1161ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
959ecb_inline unsigned char 1162ecb_inline ecb_const uint32_t
960ecb_byteorder_helper (void) 1163ecb_byteorder_helper (void)
961{ 1164{
962 /* the union code still generates code under pressure in gcc, */ 1165 /* the union code still generates code under pressure in gcc, */
963 /* but less than using pointers, and always seems to */ 1166 /* but less than using pointers, and always seems to */
964 /* successfully return a constant. */ 1167 /* successfully return a constant. */
965 /* the reason why we have this horrible preprocessor mess */ 1168 /* the reason why we have this horrible preprocessor mess */
966 /* 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 */
967 /* or when using a recent enough gcc version (>= 4.6) */ 1170 /* or when using a recent enough gcc version (>= 4.6) */
968#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
969 return 0x44;
970#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
971 return 0x44; 1174 return 0x44332211;
972#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
973 return 0x11; 1178 return 0x11223344;
974#else 1179#else
975 union 1180 union
976 { 1181 {
1182 uint8_t c[4];
977 uint32_t i; 1183 uint32_t u;
978 uint8_t c;
979 } u = { 0x11223344 }; 1184 } u = { 0x11, 0x22, 0x33, 0x44 };
980 return u.c; 1185 return u.u;
981#endif 1186#endif
982} 1187}
983 1188
984ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1189ecb_inline ecb_const ecb_bool ecb_big_endian (void);
985ecb_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; }
986ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_little_endian (void);
987ecb_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; }
988 1193
989#if ECB_GCC_VERSION(3,0) || ECB_C99 1194#if ECB_GCC_VERSION(3,0) || ECB_C99
990 #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))
991#else 1196#else
992 #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)))
993#endif 1198#endif
994 1199
995#if __cplusplus 1200#if ECB_CPP
996 template<typename T> 1201 template<typename T>
997 static inline T ecb_div_rd (T val, T div) 1202 static inline T ecb_div_rd (T val, T div)
998 { 1203 {
999 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1204 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1000 } 1205 }
… …
1017 } 1222 }
1018#else 1223#else
1019 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1224 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1020#endif 1225#endif
1021 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
1022/*******************************************************************************/ 1323/*******************************************************************************/
1023/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1324/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1024 1325
1025/* basically, everything uses "ieee pure-endian" floating point numbers */ 1326/* basically, everything uses "ieee pure-endian" floating point numbers */
1026/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1327/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1027#if 0 \ 1328#if 0 \
1028 || __i386 || __i386__ \ 1329 || __i386 || __i386__ \
1029 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1330 || ECB_GCC_AMD64 \
1030 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1331 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1031 || defined __arm__ && defined __ARM_EABI__ \
1032 || defined __s390__ || defined __s390x__ \ 1332 || defined __s390__ || defined __s390x__ \
1033 || defined __mips__ \ 1333 || defined __mips__ \
1034 || defined __alpha__ \ 1334 || defined __alpha__ \
1035 || defined __hppa__ \ 1335 || defined __hppa__ \
1036 || defined __ia64__ \ 1336 || defined __ia64__ \
1337 || defined __m68k__ \
1338 || defined __m88k__ \
1339 || defined __sh__ \
1037 || 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__
1038 #define ECB_STDFP 1 1343 #define ECB_STDFP 1
1039 #include <string.h> /* for memcpy */ 1344 #include <string.h> /* for memcpy */
1040#else 1345#else
1041 #define ECB_STDFP 0 1346 #define ECB_STDFP 0
1042 #include <math.h> /* for frexp*, ldexp* */
1043#endif 1347#endif
1044 1348
1045#ifndef ECB_NO_LIBM 1349#ifndef ECB_NO_LIBM
1046 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
1047 /* convert a float to ieee single/binary32 */ 1374 /* convert a float to ieee single/binary32 */
1048 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);
1049 ecb_function_ uint32_t 1376 ecb_function_ ecb_const uint32_t
1050 ecb_float_to_binary32 (float x) 1377 ecb_float_to_binary32 (float x)
1051 { 1378 {
1052 uint32_t r; 1379 uint32_t r;
1053 1380
1054 #if ECB_STDFP 1381 #if ECB_STDFP
… …
1061 if (x == 0e0f ) return 0x00000000U; 1388 if (x == 0e0f ) return 0x00000000U;
1062 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1389 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1063 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1390 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1064 if (x != x ) return 0x7fbfffffU; 1391 if (x != x ) return 0x7fbfffffU;
1065 1392
1066 m = frexpf (x, &e) * 0x1000000U; 1393 m = ecb_frexpf (x, &e) * 0x1000000U;
1067 1394
1068 r = m & 0x80000000U; 1395 r = m & 0x80000000U;
1069 1396
1070 if (r) 1397 if (r)
1071 m = -m; 1398 m = -m;
… …
1083 1410
1084 return r; 1411 return r;
1085 } 1412 }
1086 1413
1087 /* converts an ieee single/binary32 to a float */ 1414 /* converts an ieee single/binary32 to a float */
1088 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);
1089 ecb_function_ float 1416 ecb_function_ ecb_const float
1090 ecb_binary32_to_float (uint32_t x) 1417 ecb_binary32_to_float (uint32_t x)
1091 { 1418 {
1092 float r; 1419 float r;
1093 1420
1094 #if ECB_STDFP 1421 #if ECB_STDFP
… …
1104 x |= 0x800000U; 1431 x |= 0x800000U;
1105 else 1432 else
1106 e = 1; 1433 e = 1;
1107 1434
1108 /* 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 */
1109 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1436 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1110 1437
1111 r = neg ? -r : r; 1438 r = neg ? -r : r;
1112 #endif 1439 #endif
1113 1440
1114 return r; 1441 return r;
1115 } 1442 }
1116 1443
1117 /* convert a double to ieee double/binary64 */ 1444 /* convert a double to ieee double/binary64 */
1118 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);
1119 ecb_function_ uint64_t 1446 ecb_function_ ecb_const uint64_t
1120 ecb_double_to_binary64 (double x) 1447 ecb_double_to_binary64 (double x)
1121 { 1448 {
1122 uint64_t r; 1449 uint64_t r;
1123 1450
1124 #if ECB_STDFP 1451 #if ECB_STDFP
… …
1153 1480
1154 return r; 1481 return r;
1155 } 1482 }
1156 1483
1157 /* converts an ieee double/binary64 to a double */ 1484 /* converts an ieee double/binary64 to a double */
1158 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);
1159 ecb_function_ double 1486 ecb_function_ ecb_const double
1160 ecb_binary64_to_double (uint64_t x) 1487 ecb_binary64_to_double (uint64_t x)
1161 { 1488 {
1162 double r; 1489 double r;
1163 1490
1164 #if ECB_STDFP 1491 #if ECB_STDFP
… …
1180 1507
1181 r = neg ? -r : r; 1508 r = neg ? -r : r;
1182 #endif 1509 #endif
1183 1510
1184 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));
1185 } 1528 }
1186 1529
1187#endif 1530#endif
1188 1531
1189#endif 1532#endif
… …
1214#define inline_size ecb_inline 1557#define inline_size ecb_inline
1215 1558
1216#if EV_FEATURE_CODE 1559#if EV_FEATURE_CODE
1217# define inline_speed ecb_inline 1560# define inline_speed ecb_inline
1218#else 1561#else
1219# define inline_speed static noinline 1562# define inline_speed noinline static
1220#endif 1563#endif
1221 1564
1222#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1565#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1223 1566
1224#if EV_MINPRI == EV_MAXPRI 1567#if EV_MINPRI == EV_MAXPRI
1225# define ABSPRI(w) (((W)w), 0) 1568# define ABSPRI(w) (((W)w), 0)
1226#else 1569#else
1227# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1570# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1228#endif 1571#endif
1229 1572
1230#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1573#define EMPTY /* required for microsofts broken pseudo-c compiler */
1231#define EMPTY2(a,b) /* used to suppress some warnings */
1232 1574
1233typedef ev_watcher *W; 1575typedef ev_watcher *W;
1234typedef ev_watcher_list *WL; 1576typedef ev_watcher_list *WL;
1235typedef ev_watcher_time *WT; 1577typedef ev_watcher_time *WT;
1236 1578
… …
1261# include "ev_win32.c" 1603# include "ev_win32.c"
1262#endif 1604#endif
1263 1605
1264/*****************************************************************************/ 1606/*****************************************************************************/
1265 1607
1608#if EV_USE_LINUXAIO
1609# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1610#endif
1611
1266/* define a suitable floor function (only used by periodics atm) */ 1612/* define a suitable floor function (only used by periodics atm) */
1267 1613
1268#if EV_USE_FLOOR 1614#if EV_USE_FLOOR
1269# include <math.h> 1615# include <math.h>
1270# define ev_floor(v) floor (v) 1616# define ev_floor(v) floor (v)
1271#else 1617#else
1272 1618
1273#include <float.h> 1619#include <float.h>
1274 1620
1275/* a floor() replacement function, should be independent of ev_tstamp type */ 1621/* a floor() replacement function, should be independent of ev_tstamp type */
1622noinline
1276static ev_tstamp noinline 1623static ev_tstamp
1277ev_floor (ev_tstamp v) 1624ev_floor (ev_tstamp v)
1278{ 1625{
1279 /* the choice of shift factor is not terribly important */ 1626 /* the choice of shift factor is not terribly important */
1280#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1627#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1281 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1313 1660
1314#ifdef __linux 1661#ifdef __linux
1315# include <sys/utsname.h> 1662# include <sys/utsname.h>
1316#endif 1663#endif
1317 1664
1318static unsigned int noinline ecb_cold 1665noinline ecb_cold
1666static unsigned int
1319ev_linux_version (void) 1667ev_linux_version (void)
1320{ 1668{
1321#ifdef __linux 1669#ifdef __linux
1322 unsigned int v = 0; 1670 unsigned int v = 0;
1323 struct utsname buf; 1671 struct utsname buf;
… …
1352} 1700}
1353 1701
1354/*****************************************************************************/ 1702/*****************************************************************************/
1355 1703
1356#if EV_AVOID_STDIO 1704#if EV_AVOID_STDIO
1357static void noinline ecb_cold 1705noinline ecb_cold
1706static void
1358ev_printerr (const char *msg) 1707ev_printerr (const char *msg)
1359{ 1708{
1360 write (STDERR_FILENO, msg, strlen (msg)); 1709 write (STDERR_FILENO, msg, strlen (msg));
1361} 1710}
1362#endif 1711#endif
1363 1712
1364static void (*syserr_cb)(const char *msg) EV_THROW; 1713static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1365 1714
1366void ecb_cold 1715ecb_cold
1716void
1367ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1717ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1368{ 1718{
1369 syserr_cb = cb; 1719 syserr_cb = cb;
1370} 1720}
1371 1721
1372static void noinline ecb_cold 1722noinline ecb_cold
1723static void
1373ev_syserr (const char *msg) 1724ev_syserr (const char *msg)
1374{ 1725{
1375 if (!msg) 1726 if (!msg)
1376 msg = "(libev) system error"; 1727 msg = "(libev) system error";
1377 1728
… …
1390 abort (); 1741 abort ();
1391 } 1742 }
1392} 1743}
1393 1744
1394static void * 1745static void *
1395ev_realloc_emul (void *ptr, long size) EV_THROW 1746ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1396{ 1747{
1397 /* some systems, notably openbsd and darwin, fail to properly 1748 /* some systems, notably openbsd and darwin, fail to properly
1398 * implement realloc (x, 0) (as required by both ansi c-89 and 1749 * implement realloc (x, 0) (as required by both ansi c-89 and
1399 * the single unix specification, so work around them here. 1750 * the single unix specification, so work around them here.
1400 * recently, also (at least) fedora and debian started breaking it, 1751 * recently, also (at least) fedora and debian started breaking it,
… …
1406 1757
1407 free (ptr); 1758 free (ptr);
1408 return 0; 1759 return 0;
1409} 1760}
1410 1761
1411static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1762static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1412 1763
1413void ecb_cold 1764ecb_cold
1765void
1414ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1766ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1415{ 1767{
1416 alloc = cb; 1768 alloc = cb;
1417} 1769}
1418 1770
1419inline_speed void * 1771inline_speed void *
… …
1446typedef struct 1798typedef struct
1447{ 1799{
1448 WL head; 1800 WL head;
1449 unsigned char events; /* the events watched for */ 1801 unsigned char events; /* the events watched for */
1450 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1802 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1451 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1803 unsigned char emask; /* some backends store the actual kernel mask in here */
1452 unsigned char unused; 1804 unsigned char unused;
1453#if EV_USE_EPOLL 1805#if EV_USE_EPOLL
1454 unsigned int egen; /* generation counter to counter epoll bugs */ 1806 unsigned int egen; /* generation counter to counter epoll bugs */
1455#endif 1807#endif
1456#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1808#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1536 1888
1537/*****************************************************************************/ 1889/*****************************************************************************/
1538 1890
1539#ifndef EV_HAVE_EV_TIME 1891#ifndef EV_HAVE_EV_TIME
1540ev_tstamp 1892ev_tstamp
1541ev_time (void) EV_THROW 1893ev_time (void) EV_NOEXCEPT
1542{ 1894{
1543#if EV_USE_REALTIME 1895#if EV_USE_REALTIME
1544 if (expect_true (have_realtime)) 1896 if (expect_true (have_realtime))
1545 { 1897 {
1546 struct timespec ts; 1898 struct timespec ts;
… …
1570 return ev_time (); 1922 return ev_time ();
1571} 1923}
1572 1924
1573#if EV_MULTIPLICITY 1925#if EV_MULTIPLICITY
1574ev_tstamp 1926ev_tstamp
1575ev_now (EV_P) EV_THROW 1927ev_now (EV_P) EV_NOEXCEPT
1576{ 1928{
1577 return ev_rt_now; 1929 return ev_rt_now;
1578} 1930}
1579#endif 1931#endif
1580 1932
1581void 1933void
1582ev_sleep (ev_tstamp delay) EV_THROW 1934ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1583{ 1935{
1584 if (delay > 0.) 1936 if (delay > 0.)
1585 { 1937 {
1586#if EV_USE_NANOSLEEP 1938#if EV_USE_NANOSLEEP
1587 struct timespec ts; 1939 struct timespec ts;
1588 1940
1589 EV_TS_SET (ts, delay); 1941 EV_TS_SET (ts, delay);
1590 nanosleep (&ts, 0); 1942 nanosleep (&ts, 0);
1591#elif defined _WIN32 1943#elif defined _WIN32
1944 /* maybe this should round up, as ms is very low resolution */
1945 /* compared to select (µs) or nanosleep (ns) */
1592 Sleep ((unsigned long)(delay * 1e3)); 1946 Sleep ((unsigned long)(delay * 1e3));
1593#else 1947#else
1594 struct timeval tv; 1948 struct timeval tv;
1595 1949
1596 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1950 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1627 } 1981 }
1628 1982
1629 return ncur; 1983 return ncur;
1630} 1984}
1631 1985
1632static void * noinline ecb_cold 1986noinline ecb_cold
1987static void *
1633array_realloc (int elem, void *base, int *cur, int cnt) 1988array_realloc (int elem, void *base, int *cur, int cnt)
1634{ 1989{
1635 *cur = array_nextsize (elem, *cur, cnt); 1990 *cur = array_nextsize (elem, *cur, cnt);
1636 return ev_realloc (base, elem * *cur); 1991 return ev_realloc (base, elem * *cur);
1637} 1992}
1638 1993
1994#define array_needsize_noinit(base,count)
1995
1639#define array_init_zero(base,count) \ 1996#define array_needsize_zerofill(base,count) \
1640 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1997 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1641 1998
1642#define array_needsize(type,base,cur,cnt,init) \ 1999#define array_needsize(type,base,cur,cnt,init) \
1643 if (expect_false ((cnt) > (cur))) \ 2000 if (expect_false ((cnt) > (cur))) \
1644 { \ 2001 { \
1645 int ecb_unused ocur_ = (cur); \ 2002 ecb_unused int ocur_ = (cur); \
1646 (base) = (type *)array_realloc \ 2003 (base) = (type *)array_realloc \
1647 (sizeof (type), (base), &(cur), (cnt)); \ 2004 (sizeof (type), (base), &(cur), (cnt)); \
1648 init ((base) + (ocur_), (cur) - ocur_); \ 2005 init ((base) + (ocur_), (cur) - ocur_); \
1649 } 2006 }
1650 2007
… …
1662 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2019 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1663 2020
1664/*****************************************************************************/ 2021/*****************************************************************************/
1665 2022
1666/* dummy callback for pending events */ 2023/* dummy callback for pending events */
1667static void noinline 2024noinline
2025static void
1668pendingcb (EV_P_ ev_prepare *w, int revents) 2026pendingcb (EV_P_ ev_prepare *w, int revents)
1669{ 2027{
1670} 2028}
1671 2029
1672void noinline 2030noinline
2031void
1673ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2032ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1674{ 2033{
1675 W w_ = (W)w; 2034 W w_ = (W)w;
1676 int pri = ABSPRI (w_); 2035 int pri = ABSPRI (w_);
1677 2036
1678 if (expect_false (w_->pending)) 2037 if (expect_false (w_->pending))
1679 pendings [pri][w_->pending - 1].events |= revents; 2038 pendings [pri][w_->pending - 1].events |= revents;
1680 else 2039 else
1681 { 2040 {
1682 w_->pending = ++pendingcnt [pri]; 2041 w_->pending = ++pendingcnt [pri];
1683 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2042 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1684 pendings [pri][w_->pending - 1].w = w_; 2043 pendings [pri][w_->pending - 1].w = w_;
1685 pendings [pri][w_->pending - 1].events = revents; 2044 pendings [pri][w_->pending - 1].events = revents;
1686 } 2045 }
1687 2046
1688 pendingpri = NUMPRI - 1; 2047 pendingpri = NUMPRI - 1;
1689} 2048}
1690 2049
1691inline_speed void 2050inline_speed void
1692feed_reverse (EV_P_ W w) 2051feed_reverse (EV_P_ W w)
1693{ 2052{
1694 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2053 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1695 rfeeds [rfeedcnt++] = w; 2054 rfeeds [rfeedcnt++] = w;
1696} 2055}
1697 2056
1698inline_size void 2057inline_size void
1699feed_reverse_done (EV_P_ int revents) 2058feed_reverse_done (EV_P_ int revents)
… …
1739 if (expect_true (!anfd->reify)) 2098 if (expect_true (!anfd->reify))
1740 fd_event_nocheck (EV_A_ fd, revents); 2099 fd_event_nocheck (EV_A_ fd, revents);
1741} 2100}
1742 2101
1743void 2102void
1744ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2103ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1745{ 2104{
1746 if (fd >= 0 && fd < anfdmax) 2105 if (fd >= 0 && fd < anfdmax)
1747 fd_event_nocheck (EV_A_ fd, revents); 2106 fd_event_nocheck (EV_A_ fd, revents);
1748} 2107}
1749 2108
… …
1807 2166
1808 fdchangecnt = 0; 2167 fdchangecnt = 0;
1809} 2168}
1810 2169
1811/* something about the given fd changed */ 2170/* something about the given fd changed */
1812inline_size void 2171inline_size
2172void
1813fd_change (EV_P_ int fd, int flags) 2173fd_change (EV_P_ int fd, int flags)
1814{ 2174{
1815 unsigned char reify = anfds [fd].reify; 2175 unsigned char reify = anfds [fd].reify;
1816 anfds [fd].reify |= flags; 2176 anfds [fd].reify |= flags;
1817 2177
1818 if (expect_true (!reify)) 2178 if (expect_true (!reify))
1819 { 2179 {
1820 ++fdchangecnt; 2180 ++fdchangecnt;
1821 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2181 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1822 fdchanges [fdchangecnt - 1] = fd; 2182 fdchanges [fdchangecnt - 1] = fd;
1823 } 2183 }
1824} 2184}
1825 2185
1826/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2186/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1827inline_speed void ecb_cold 2187inline_speed ecb_cold void
1828fd_kill (EV_P_ int fd) 2188fd_kill (EV_P_ int fd)
1829{ 2189{
1830 ev_io *w; 2190 ev_io *w;
1831 2191
1832 while ((w = (ev_io *)anfds [fd].head)) 2192 while ((w = (ev_io *)anfds [fd].head))
… …
1835 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2195 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1836 } 2196 }
1837} 2197}
1838 2198
1839/* check whether the given fd is actually valid, for error recovery */ 2199/* check whether the given fd is actually valid, for error recovery */
1840inline_size int ecb_cold 2200inline_size ecb_cold int
1841fd_valid (int fd) 2201fd_valid (int fd)
1842{ 2202{
1843#ifdef _WIN32 2203#ifdef _WIN32
1844 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2204 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1845#else 2205#else
1846 return fcntl (fd, F_GETFD) != -1; 2206 return fcntl (fd, F_GETFD) != -1;
1847#endif 2207#endif
1848} 2208}
1849 2209
1850/* called on EBADF to verify fds */ 2210/* called on EBADF to verify fds */
1851static void noinline ecb_cold 2211noinline ecb_cold
2212static void
1852fd_ebadf (EV_P) 2213fd_ebadf (EV_P)
1853{ 2214{
1854 int fd; 2215 int fd;
1855 2216
1856 for (fd = 0; fd < anfdmax; ++fd) 2217 for (fd = 0; fd < anfdmax; ++fd)
… …
1858 if (!fd_valid (fd) && errno == EBADF) 2219 if (!fd_valid (fd) && errno == EBADF)
1859 fd_kill (EV_A_ fd); 2220 fd_kill (EV_A_ fd);
1860} 2221}
1861 2222
1862/* called on ENOMEM in select/poll to kill some fds and retry */ 2223/* called on ENOMEM in select/poll to kill some fds and retry */
1863static void noinline ecb_cold 2224noinline ecb_cold
2225static void
1864fd_enomem (EV_P) 2226fd_enomem (EV_P)
1865{ 2227{
1866 int fd; 2228 int fd;
1867 2229
1868 for (fd = anfdmax; fd--; ) 2230 for (fd = anfdmax; fd--; )
… …
1872 break; 2234 break;
1873 } 2235 }
1874} 2236}
1875 2237
1876/* usually called after fork if backend needs to re-arm all fds from scratch */ 2238/* usually called after fork if backend needs to re-arm all fds from scratch */
1877static void noinline 2239noinline
2240static void
1878fd_rearm_all (EV_P) 2241fd_rearm_all (EV_P)
1879{ 2242{
1880 int fd; 2243 int fd;
1881 2244
1882 for (fd = 0; fd < anfdmax; ++fd) 2245 for (fd = 0; fd < anfdmax; ++fd)
… …
2063 2426
2064/*****************************************************************************/ 2427/*****************************************************************************/
2065 2428
2066#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2429#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2067 2430
2068static void noinline ecb_cold 2431noinline ecb_cold
2432static void
2069evpipe_init (EV_P) 2433evpipe_init (EV_P)
2070{ 2434{
2071 if (!ev_is_active (&pipe_w)) 2435 if (!ev_is_active (&pipe_w))
2072 { 2436 {
2073 int fds [2]; 2437 int fds [2];
… …
2084 while (pipe (fds)) 2448 while (pipe (fds))
2085 ev_syserr ("(libev) error creating signal/async pipe"); 2449 ev_syserr ("(libev) error creating signal/async pipe");
2086 2450
2087 fd_intern (fds [0]); 2451 fd_intern (fds [0]);
2088 } 2452 }
2089
2090 fd_intern (fds [1]);
2091 2453
2092 evpipe [0] = fds [0]; 2454 evpipe [0] = fds [0];
2093 2455
2094 if (evpipe [1] < 0) 2456 if (evpipe [1] < 0)
2095 evpipe [1] = fds [1]; /* first call, set write fd */ 2457 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2102 2464
2103 dup2 (fds [1], evpipe [1]); 2465 dup2 (fds [1], evpipe [1]);
2104 close (fds [1]); 2466 close (fds [1]);
2105 } 2467 }
2106 2468
2469 fd_intern (evpipe [1]);
2470
2107 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2471 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2108 ev_io_start (EV_A_ &pipe_w); 2472 ev_io_start (EV_A_ &pipe_w);
2109 ev_unref (EV_A); /* watcher should not keep loop alive */ 2473 ev_unref (EV_A); /* watcher should not keep loop alive */
2110 } 2474 }
2111} 2475}
… …
2144#endif 2508#endif
2145 { 2509 {
2146#ifdef _WIN32 2510#ifdef _WIN32
2147 WSABUF buf; 2511 WSABUF buf;
2148 DWORD sent; 2512 DWORD sent;
2149 buf.buf = &buf; 2513 buf.buf = (char *)&buf;
2150 buf.len = 1; 2514 buf.len = 1;
2151 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2515 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2152#else 2516#else
2153 write (evpipe [1], &(evpipe [1]), 1); 2517 write (evpipe [1], &(evpipe [1]), 1);
2154#endif 2518#endif
… …
2226} 2590}
2227 2591
2228/*****************************************************************************/ 2592/*****************************************************************************/
2229 2593
2230void 2594void
2231ev_feed_signal (int signum) EV_THROW 2595ev_feed_signal (int signum) EV_NOEXCEPT
2232{ 2596{
2233#if EV_MULTIPLICITY 2597#if EV_MULTIPLICITY
2598 EV_P;
2234 ECB_MEMORY_FENCE_ACQUIRE; 2599 ECB_MEMORY_FENCE_ACQUIRE;
2235 EV_P = signals [signum - 1].loop; 2600 EV_A = signals [signum - 1].loop;
2236 2601
2237 if (!EV_A) 2602 if (!EV_A)
2238 return; 2603 return;
2239#endif 2604#endif
2240 2605
… …
2250#endif 2615#endif
2251 2616
2252 ev_feed_signal (signum); 2617 ev_feed_signal (signum);
2253} 2618}
2254 2619
2255void noinline 2620noinline
2621void
2256ev_feed_signal_event (EV_P_ int signum) EV_THROW 2622ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2257{ 2623{
2258 WL w; 2624 WL w;
2259 2625
2260 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2626 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2261 return; 2627 return;
… …
2370# include "ev_kqueue.c" 2736# include "ev_kqueue.c"
2371#endif 2737#endif
2372#if EV_USE_EPOLL 2738#if EV_USE_EPOLL
2373# include "ev_epoll.c" 2739# include "ev_epoll.c"
2374#endif 2740#endif
2741#if EV_USE_LINUXAIO
2742# include "ev_linuxaio.c"
2743#endif
2375#if EV_USE_POLL 2744#if EV_USE_POLL
2376# include "ev_poll.c" 2745# include "ev_poll.c"
2377#endif 2746#endif
2378#if EV_USE_SELECT 2747#if EV_USE_SELECT
2379# include "ev_select.c" 2748# include "ev_select.c"
2380#endif 2749#endif
2381 2750
2382int ecb_cold 2751ecb_cold int
2383ev_version_major (void) EV_THROW 2752ev_version_major (void) EV_NOEXCEPT
2384{ 2753{
2385 return EV_VERSION_MAJOR; 2754 return EV_VERSION_MAJOR;
2386} 2755}
2387 2756
2388int ecb_cold 2757ecb_cold int
2389ev_version_minor (void) EV_THROW 2758ev_version_minor (void) EV_NOEXCEPT
2390{ 2759{
2391 return EV_VERSION_MINOR; 2760 return EV_VERSION_MINOR;
2392} 2761}
2393 2762
2394/* return true if we are running with elevated privileges and should ignore env variables */ 2763/* return true if we are running with elevated privileges and should ignore env variables */
2395int inline_size ecb_cold 2764inline_size ecb_cold int
2396enable_secure (void) 2765enable_secure (void)
2397{ 2766{
2398#ifdef _WIN32 2767#ifdef _WIN32
2399 return 0; 2768 return 0;
2400#else 2769#else
2401 return getuid () != geteuid () 2770 return getuid () != geteuid ()
2402 || getgid () != getegid (); 2771 || getgid () != getegid ();
2403#endif 2772#endif
2404} 2773}
2405 2774
2406unsigned int ecb_cold 2775ecb_cold
2776unsigned int
2407ev_supported_backends (void) EV_THROW 2777ev_supported_backends (void) EV_NOEXCEPT
2408{ 2778{
2409 unsigned int flags = 0; 2779 unsigned int flags = 0;
2410 2780
2411 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2781 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2412 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2782 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2413 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2783 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2784 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2414 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2785 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2415 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2786 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2416 2787
2417 return flags; 2788 return flags;
2418} 2789}
2419 2790
2420unsigned int ecb_cold 2791ecb_cold
2792unsigned int
2421ev_recommended_backends (void) EV_THROW 2793ev_recommended_backends (void) EV_NOEXCEPT
2422{ 2794{
2423 unsigned int flags = ev_supported_backends (); 2795 unsigned int flags = ev_supported_backends ();
2424 2796
2425#ifndef __NetBSD__ 2797#ifndef __NetBSD__
2426 /* kqueue is borked on everything but netbsd apparently */ 2798 /* kqueue is borked on everything but netbsd apparently */
… …
2434#endif 2806#endif
2435#ifdef __FreeBSD__ 2807#ifdef __FreeBSD__
2436 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2808 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2437#endif 2809#endif
2438 2810
2811 /* TODO: linuxaio is very experimental */
2812#if !EV_RECOMMEND_LINUXAIO
2813 flags &= ~EVBACKEND_LINUXAIO;
2814#endif
2815
2439 return flags; 2816 return flags;
2440} 2817}
2441 2818
2442unsigned int ecb_cold 2819ecb_cold
2820unsigned int
2443ev_embeddable_backends (void) EV_THROW 2821ev_embeddable_backends (void) EV_NOEXCEPT
2444{ 2822{
2445 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2823 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2446 2824
2447 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2825 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2448 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2826 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2450 2828
2451 return flags; 2829 return flags;
2452} 2830}
2453 2831
2454unsigned int 2832unsigned int
2455ev_backend (EV_P) EV_THROW 2833ev_backend (EV_P) EV_NOEXCEPT
2456{ 2834{
2457 return backend; 2835 return backend;
2458} 2836}
2459 2837
2460#if EV_FEATURE_API 2838#if EV_FEATURE_API
2461unsigned int 2839unsigned int
2462ev_iteration (EV_P) EV_THROW 2840ev_iteration (EV_P) EV_NOEXCEPT
2463{ 2841{
2464 return loop_count; 2842 return loop_count;
2465} 2843}
2466 2844
2467unsigned int 2845unsigned int
2468ev_depth (EV_P) EV_THROW 2846ev_depth (EV_P) EV_NOEXCEPT
2469{ 2847{
2470 return loop_depth; 2848 return loop_depth;
2471} 2849}
2472 2850
2473void 2851void
2474ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2852ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2475{ 2853{
2476 io_blocktime = interval; 2854 io_blocktime = interval;
2477} 2855}
2478 2856
2479void 2857void
2480ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2858ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2481{ 2859{
2482 timeout_blocktime = interval; 2860 timeout_blocktime = interval;
2483} 2861}
2484 2862
2485void 2863void
2486ev_set_userdata (EV_P_ void *data) EV_THROW 2864ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2487{ 2865{
2488 userdata = data; 2866 userdata = data;
2489} 2867}
2490 2868
2491void * 2869void *
2492ev_userdata (EV_P) EV_THROW 2870ev_userdata (EV_P) EV_NOEXCEPT
2493{ 2871{
2494 return userdata; 2872 return userdata;
2495} 2873}
2496 2874
2497void 2875void
2498ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2876ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2499{ 2877{
2500 invoke_cb = invoke_pending_cb; 2878 invoke_cb = invoke_pending_cb;
2501} 2879}
2502 2880
2503void 2881void
2504ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2882ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2505{ 2883{
2506 release_cb = release; 2884 release_cb = release;
2507 acquire_cb = acquire; 2885 acquire_cb = acquire;
2508} 2886}
2509#endif 2887#endif
2510 2888
2511/* initialise a loop structure, must be zero-initialised */ 2889/* initialise a loop structure, must be zero-initialised */
2512static void noinline ecb_cold 2890noinline ecb_cold
2891static void
2513loop_init (EV_P_ unsigned int flags) EV_THROW 2892loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2514{ 2893{
2515 if (!backend) 2894 if (!backend)
2516 { 2895 {
2517 origflags = flags; 2896 origflags = flags;
2518 2897
… …
2576 2955
2577 if (!(flags & EVBACKEND_MASK)) 2956 if (!(flags & EVBACKEND_MASK))
2578 flags |= ev_recommended_backends (); 2957 flags |= ev_recommended_backends ();
2579 2958
2580#if EV_USE_IOCP 2959#if EV_USE_IOCP
2581 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2960 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2582#endif 2961#endif
2583#if EV_USE_PORT 2962#if EV_USE_PORT
2584 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2963 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2585#endif 2964#endif
2586#if EV_USE_KQUEUE 2965#if EV_USE_KQUEUE
2587 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2966 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2967#endif
2968#if EV_USE_LINUXAIO
2969 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2588#endif 2970#endif
2589#if EV_USE_EPOLL 2971#if EV_USE_EPOLL
2590 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2972 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2591#endif 2973#endif
2592#if EV_USE_POLL 2974#if EV_USE_POLL
2593 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2975 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2594#endif 2976#endif
2595#if EV_USE_SELECT 2977#if EV_USE_SELECT
2596 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2978 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2597#endif 2979#endif
2598 2980
2599 ev_prepare_init (&pending_w, pendingcb); 2981 ev_prepare_init (&pending_w, pendingcb);
2600 2982
2601#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2983#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2604#endif 2986#endif
2605 } 2987 }
2606} 2988}
2607 2989
2608/* free up a loop structure */ 2990/* free up a loop structure */
2609void ecb_cold 2991ecb_cold
2992void
2610ev_loop_destroy (EV_P) 2993ev_loop_destroy (EV_P)
2611{ 2994{
2612 int i; 2995 int i;
2613 2996
2614#if EV_MULTIPLICITY 2997#if EV_MULTIPLICITY
… …
2655 3038
2656 if (backend_fd >= 0) 3039 if (backend_fd >= 0)
2657 close (backend_fd); 3040 close (backend_fd);
2658 3041
2659#if EV_USE_IOCP 3042#if EV_USE_IOCP
2660 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3043 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2661#endif 3044#endif
2662#if EV_USE_PORT 3045#if EV_USE_PORT
2663 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3046 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2664#endif 3047#endif
2665#if EV_USE_KQUEUE 3048#if EV_USE_KQUEUE
2666 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3049 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3050#endif
3051#if EV_USE_LINUXAIO
3052 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2667#endif 3053#endif
2668#if EV_USE_EPOLL 3054#if EV_USE_EPOLL
2669 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3055 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2670#endif 3056#endif
2671#if EV_USE_POLL 3057#if EV_USE_POLL
2672 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3058 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2673#endif 3059#endif
2674#if EV_USE_SELECT 3060#if EV_USE_SELECT
2675 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3061 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2676#endif 3062#endif
2677 3063
2678 for (i = NUMPRI; i--; ) 3064 for (i = NUMPRI; i--; )
2679 { 3065 {
2680 array_free (pending, [i]); 3066 array_free (pending, [i]);
… …
2722 3108
2723inline_size void 3109inline_size void
2724loop_fork (EV_P) 3110loop_fork (EV_P)
2725{ 3111{
2726#if EV_USE_PORT 3112#if EV_USE_PORT
2727 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3113 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2728#endif 3114#endif
2729#if EV_USE_KQUEUE 3115#if EV_USE_KQUEUE
2730 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3116 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3117#endif
3118#if EV_USE_LINUXAIO
3119 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2731#endif 3120#endif
2732#if EV_USE_EPOLL 3121#if EV_USE_EPOLL
2733 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3122 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2734#endif 3123#endif
2735#if EV_USE_INOTIFY 3124#if EV_USE_INOTIFY
2736 infy_fork (EV_A); 3125 infy_fork (EV_A);
2737#endif 3126#endif
2738 3127
2739#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3128#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2740 if (ev_is_active (&pipe_w)) 3129 if (ev_is_active (&pipe_w) && postfork != 2)
2741 { 3130 {
2742 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3131 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2743 3132
2744 ev_ref (EV_A); 3133 ev_ref (EV_A);
2745 ev_io_stop (EV_A_ &pipe_w); 3134 ev_io_stop (EV_A_ &pipe_w);
… …
2756 postfork = 0; 3145 postfork = 0;
2757} 3146}
2758 3147
2759#if EV_MULTIPLICITY 3148#if EV_MULTIPLICITY
2760 3149
3150ecb_cold
2761struct ev_loop * ecb_cold 3151struct ev_loop *
2762ev_loop_new (unsigned int flags) EV_THROW 3152ev_loop_new (unsigned int flags) EV_NOEXCEPT
2763{ 3153{
2764 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3154 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2765 3155
2766 memset (EV_A, 0, sizeof (struct ev_loop)); 3156 memset (EV_A, 0, sizeof (struct ev_loop));
2767 loop_init (EV_A_ flags); 3157 loop_init (EV_A_ flags);
… …
2774} 3164}
2775 3165
2776#endif /* multiplicity */ 3166#endif /* multiplicity */
2777 3167
2778#if EV_VERIFY 3168#if EV_VERIFY
2779static void noinline ecb_cold 3169noinline ecb_cold
3170static void
2780verify_watcher (EV_P_ W w) 3171verify_watcher (EV_P_ W w)
2781{ 3172{
2782 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3173 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2783 3174
2784 if (w->pending) 3175 if (w->pending)
2785 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3176 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2786} 3177}
2787 3178
2788static void noinline ecb_cold 3179noinline ecb_cold
3180static void
2789verify_heap (EV_P_ ANHE *heap, int N) 3181verify_heap (EV_P_ ANHE *heap, int N)
2790{ 3182{
2791 int i; 3183 int i;
2792 3184
2793 for (i = HEAP0; i < N + HEAP0; ++i) 3185 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2798 3190
2799 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3191 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2800 } 3192 }
2801} 3193}
2802 3194
2803static void noinline ecb_cold 3195noinline ecb_cold
3196static void
2804array_verify (EV_P_ W *ws, int cnt) 3197array_verify (EV_P_ W *ws, int cnt)
2805{ 3198{
2806 while (cnt--) 3199 while (cnt--)
2807 { 3200 {
2808 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3201 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2811} 3204}
2812#endif 3205#endif
2813 3206
2814#if EV_FEATURE_API 3207#if EV_FEATURE_API
2815void ecb_cold 3208void ecb_cold
2816ev_verify (EV_P) EV_THROW 3209ev_verify (EV_P) EV_NOEXCEPT
2817{ 3210{
2818#if EV_VERIFY 3211#if EV_VERIFY
2819 int i; 3212 int i;
2820 WL w, w2; 3213 WL w, w2;
2821 3214
… …
2897#endif 3290#endif
2898} 3291}
2899#endif 3292#endif
2900 3293
2901#if EV_MULTIPLICITY 3294#if EV_MULTIPLICITY
3295ecb_cold
2902struct ev_loop * ecb_cold 3296struct ev_loop *
2903#else 3297#else
2904int 3298int
2905#endif 3299#endif
2906ev_default_loop (unsigned int flags) EV_THROW 3300ev_default_loop (unsigned int flags) EV_NOEXCEPT
2907{ 3301{
2908 if (!ev_default_loop_ptr) 3302 if (!ev_default_loop_ptr)
2909 { 3303 {
2910#if EV_MULTIPLICITY 3304#if EV_MULTIPLICITY
2911 EV_P = ev_default_loop_ptr = &default_loop_struct; 3305 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2930 3324
2931 return ev_default_loop_ptr; 3325 return ev_default_loop_ptr;
2932} 3326}
2933 3327
2934void 3328void
2935ev_loop_fork (EV_P) EV_THROW 3329ev_loop_fork (EV_P) EV_NOEXCEPT
2936{ 3330{
2937 postfork = 1; 3331 postfork = 1;
2938} 3332}
2939 3333
2940/*****************************************************************************/ 3334/*****************************************************************************/
… …
2944{ 3338{
2945 EV_CB_INVOKE ((W)w, revents); 3339 EV_CB_INVOKE ((W)w, revents);
2946} 3340}
2947 3341
2948unsigned int 3342unsigned int
2949ev_pending_count (EV_P) EV_THROW 3343ev_pending_count (EV_P) EV_NOEXCEPT
2950{ 3344{
2951 int pri; 3345 int pri;
2952 unsigned int count = 0; 3346 unsigned int count = 0;
2953 3347
2954 for (pri = NUMPRI; pri--; ) 3348 for (pri = NUMPRI; pri--; )
2955 count += pendingcnt [pri]; 3349 count += pendingcnt [pri];
2956 3350
2957 return count; 3351 return count;
2958} 3352}
2959 3353
2960void noinline 3354noinline
3355void
2961ev_invoke_pending (EV_P) 3356ev_invoke_pending (EV_P)
2962{ 3357{
2963 pendingpri = NUMPRI; 3358 pendingpri = NUMPRI;
2964 3359
2965 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3360 do
2966 { 3361 {
2967 --pendingpri; 3362 --pendingpri;
2968 3363
3364 /* pendingpri possibly gets modified in the inner loop */
2969 while (pendingcnt [pendingpri]) 3365 while (pendingcnt [pendingpri])
2970 { 3366 {
2971 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3367 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2972 3368
2973 p->w->pending = 0; 3369 p->w->pending = 0;
2974 EV_CB_INVOKE (p->w, p->events); 3370 EV_CB_INVOKE (p->w, p->events);
2975 EV_FREQUENT_CHECK; 3371 EV_FREQUENT_CHECK;
2976 } 3372 }
2977 } 3373 }
3374 while (pendingpri);
2978} 3375}
2979 3376
2980#if EV_IDLE_ENABLE 3377#if EV_IDLE_ENABLE
2981/* make idle watchers pending. this handles the "call-idle */ 3378/* make idle watchers pending. this handles the "call-idle */
2982/* only when higher priorities are idle" logic */ 3379/* only when higher priorities are idle" logic */
… …
3040 } 3437 }
3041} 3438}
3042 3439
3043#if EV_PERIODIC_ENABLE 3440#if EV_PERIODIC_ENABLE
3044 3441
3045static void noinline 3442noinline
3443static void
3046periodic_recalc (EV_P_ ev_periodic *w) 3444periodic_recalc (EV_P_ ev_periodic *w)
3047{ 3445{
3048 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3446 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3049 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3447 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3050 3448
… …
3108 } 3506 }
3109} 3507}
3110 3508
3111/* simply recalculate all periodics */ 3509/* simply recalculate all periodics */
3112/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3510/* TODO: maybe ensure that at least one event happens when jumping forward? */
3113static void noinline ecb_cold 3511noinline ecb_cold
3512static void
3114periodics_reschedule (EV_P) 3513periodics_reschedule (EV_P)
3115{ 3514{
3116 int i; 3515 int i;
3117 3516
3118 /* adjust periodics after time jump */ 3517 /* adjust periodics after time jump */
… …
3131 reheap (periodics, periodiccnt); 3530 reheap (periodics, periodiccnt);
3132} 3531}
3133#endif 3532#endif
3134 3533
3135/* adjust all timers by a given offset */ 3534/* adjust all timers by a given offset */
3136static void noinline ecb_cold 3535noinline ecb_cold
3536static void
3137timers_reschedule (EV_P_ ev_tstamp adjust) 3537timers_reschedule (EV_P_ ev_tstamp adjust)
3138{ 3538{
3139 int i; 3539 int i;
3140 3540
3141 for (i = 0; i < timercnt; ++i) 3541 for (i = 0; i < timercnt; ++i)
… …
3388 3788
3389 return activecnt; 3789 return activecnt;
3390} 3790}
3391 3791
3392void 3792void
3393ev_break (EV_P_ int how) EV_THROW 3793ev_break (EV_P_ int how) EV_NOEXCEPT
3394{ 3794{
3395 loop_done = how; 3795 loop_done = how;
3396} 3796}
3397 3797
3398void 3798void
3399ev_ref (EV_P) EV_THROW 3799ev_ref (EV_P) EV_NOEXCEPT
3400{ 3800{
3401 ++activecnt; 3801 ++activecnt;
3402} 3802}
3403 3803
3404void 3804void
3405ev_unref (EV_P) EV_THROW 3805ev_unref (EV_P) EV_NOEXCEPT
3406{ 3806{
3407 --activecnt; 3807 --activecnt;
3408} 3808}
3409 3809
3410void 3810void
3411ev_now_update (EV_P) EV_THROW 3811ev_now_update (EV_P) EV_NOEXCEPT
3412{ 3812{
3413 time_update (EV_A_ 1e100); 3813 time_update (EV_A_ 1e100);
3414} 3814}
3415 3815
3416void 3816void
3417ev_suspend (EV_P) EV_THROW 3817ev_suspend (EV_P) EV_NOEXCEPT
3418{ 3818{
3419 ev_now_update (EV_A); 3819 ev_now_update (EV_A);
3420} 3820}
3421 3821
3422void 3822void
3423ev_resume (EV_P) EV_THROW 3823ev_resume (EV_P) EV_NOEXCEPT
3424{ 3824{
3425 ev_tstamp mn_prev = mn_now; 3825 ev_tstamp mn_prev = mn_now;
3426 3826
3427 ev_now_update (EV_A); 3827 ev_now_update (EV_A);
3428 timers_reschedule (EV_A_ mn_now - mn_prev); 3828 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3467 w->pending = 0; 3867 w->pending = 0;
3468 } 3868 }
3469} 3869}
3470 3870
3471int 3871int
3472ev_clear_pending (EV_P_ void *w) EV_THROW 3872ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3473{ 3873{
3474 W w_ = (W)w; 3874 W w_ = (W)w;
3475 int pending = w_->pending; 3875 int pending = w_->pending;
3476 3876
3477 if (expect_true (pending)) 3877 if (expect_true (pending))
… …
3509 w->active = 0; 3909 w->active = 0;
3510} 3910}
3511 3911
3512/*****************************************************************************/ 3912/*****************************************************************************/
3513 3913
3514void noinline 3914noinline
3915void
3515ev_io_start (EV_P_ ev_io *w) EV_THROW 3916ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3516{ 3917{
3517 int fd = w->fd; 3918 int fd = w->fd;
3518 3919
3519 if (expect_false (ev_is_active (w))) 3920 if (expect_false (ev_is_active (w)))
3520 return; 3921 return;
… …
3523 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3924 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3524 3925
3525 EV_FREQUENT_CHECK; 3926 EV_FREQUENT_CHECK;
3526 3927
3527 ev_start (EV_A_ (W)w, 1); 3928 ev_start (EV_A_ (W)w, 1);
3528 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3929 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3529 wlist_add (&anfds[fd].head, (WL)w); 3930 wlist_add (&anfds[fd].head, (WL)w);
3530 3931
3531 /* common bug, apparently */ 3932 /* common bug, apparently */
3532 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3933 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3533 3934
… …
3535 w->events &= ~EV__IOFDSET; 3936 w->events &= ~EV__IOFDSET;
3536 3937
3537 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
3538} 3939}
3539 3940
3540void noinline 3941noinline
3942void
3541ev_io_stop (EV_P_ ev_io *w) EV_THROW 3943ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3542{ 3944{
3543 clear_pending (EV_A_ (W)w); 3945 clear_pending (EV_A_ (W)w);
3544 if (expect_false (!ev_is_active (w))) 3946 if (expect_false (!ev_is_active (w)))
3545 return; 3947 return;
3546 3948
… …
3554 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3956 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3555 3957
3556 EV_FREQUENT_CHECK; 3958 EV_FREQUENT_CHECK;
3557} 3959}
3558 3960
3559void noinline 3961noinline
3962void
3560ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3963ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3561{ 3964{
3562 if (expect_false (ev_is_active (w))) 3965 if (expect_false (ev_is_active (w)))
3563 return; 3966 return;
3564 3967
3565 ev_at (w) += mn_now; 3968 ev_at (w) += mn_now;
… …
3568 3971
3569 EV_FREQUENT_CHECK; 3972 EV_FREQUENT_CHECK;
3570 3973
3571 ++timercnt; 3974 ++timercnt;
3572 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3975 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3573 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3976 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3574 ANHE_w (timers [ev_active (w)]) = (WT)w; 3977 ANHE_w (timers [ev_active (w)]) = (WT)w;
3575 ANHE_at_cache (timers [ev_active (w)]); 3978 ANHE_at_cache (timers [ev_active (w)]);
3576 upheap (timers, ev_active (w)); 3979 upheap (timers, ev_active (w));
3577 3980
3578 EV_FREQUENT_CHECK; 3981 EV_FREQUENT_CHECK;
3579 3982
3580 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3983 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3581} 3984}
3582 3985
3583void noinline 3986noinline
3987void
3584ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3988ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3585{ 3989{
3586 clear_pending (EV_A_ (W)w); 3990 clear_pending (EV_A_ (W)w);
3587 if (expect_false (!ev_is_active (w))) 3991 if (expect_false (!ev_is_active (w)))
3588 return; 3992 return;
3589 3993
… …
3608 ev_stop (EV_A_ (W)w); 4012 ev_stop (EV_A_ (W)w);
3609 4013
3610 EV_FREQUENT_CHECK; 4014 EV_FREQUENT_CHECK;
3611} 4015}
3612 4016
3613void noinline 4017noinline
4018void
3614ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4019ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3615{ 4020{
3616 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
3617 4022
3618 clear_pending (EV_A_ (W)w); 4023 clear_pending (EV_A_ (W)w);
3619 4024
… …
3636 4041
3637 EV_FREQUENT_CHECK; 4042 EV_FREQUENT_CHECK;
3638} 4043}
3639 4044
3640ev_tstamp 4045ev_tstamp
3641ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4046ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3642{ 4047{
3643 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4048 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3644} 4049}
3645 4050
3646#if EV_PERIODIC_ENABLE 4051#if EV_PERIODIC_ENABLE
3647void noinline 4052noinline
4053void
3648ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4054ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3649{ 4055{
3650 if (expect_false (ev_is_active (w))) 4056 if (expect_false (ev_is_active (w)))
3651 return; 4057 return;
3652 4058
3653 if (w->reschedule_cb) 4059 if (w->reschedule_cb)
… …
3662 4068
3663 EV_FREQUENT_CHECK; 4069 EV_FREQUENT_CHECK;
3664 4070
3665 ++periodiccnt; 4071 ++periodiccnt;
3666 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4072 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3667 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4073 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3668 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4074 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3669 ANHE_at_cache (periodics [ev_active (w)]); 4075 ANHE_at_cache (periodics [ev_active (w)]);
3670 upheap (periodics, ev_active (w)); 4076 upheap (periodics, ev_active (w));
3671 4077
3672 EV_FREQUENT_CHECK; 4078 EV_FREQUENT_CHECK;
3673 4079
3674 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4080 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3675} 4081}
3676 4082
3677void noinline 4083noinline
4084void
3678ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4085ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3679{ 4086{
3680 clear_pending (EV_A_ (W)w); 4087 clear_pending (EV_A_ (W)w);
3681 if (expect_false (!ev_is_active (w))) 4088 if (expect_false (!ev_is_active (w)))
3682 return; 4089 return;
3683 4090
… …
3700 ev_stop (EV_A_ (W)w); 4107 ev_stop (EV_A_ (W)w);
3701 4108
3702 EV_FREQUENT_CHECK; 4109 EV_FREQUENT_CHECK;
3703} 4110}
3704 4111
3705void noinline 4112noinline
4113void
3706ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4114ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3707{ 4115{
3708 /* TODO: use adjustheap and recalculation */ 4116 /* TODO: use adjustheap and recalculation */
3709 ev_periodic_stop (EV_A_ w); 4117 ev_periodic_stop (EV_A_ w);
3710 ev_periodic_start (EV_A_ w); 4118 ev_periodic_start (EV_A_ w);
3711} 4119}
… …
3715# define SA_RESTART 0 4123# define SA_RESTART 0
3716#endif 4124#endif
3717 4125
3718#if EV_SIGNAL_ENABLE 4126#if EV_SIGNAL_ENABLE
3719 4127
3720void noinline 4128noinline
4129void
3721ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4130ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3722{ 4131{
3723 if (expect_false (ev_is_active (w))) 4132 if (expect_false (ev_is_active (w)))
3724 return; 4133 return;
3725 4134
3726 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4135 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3797 } 4206 }
3798 4207
3799 EV_FREQUENT_CHECK; 4208 EV_FREQUENT_CHECK;
3800} 4209}
3801 4210
3802void noinline 4211noinline
4212void
3803ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4213ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3804{ 4214{
3805 clear_pending (EV_A_ (W)w); 4215 clear_pending (EV_A_ (W)w);
3806 if (expect_false (!ev_is_active (w))) 4216 if (expect_false (!ev_is_active (w)))
3807 return; 4217 return;
3808 4218
… …
3839#endif 4249#endif
3840 4250
3841#if EV_CHILD_ENABLE 4251#if EV_CHILD_ENABLE
3842 4252
3843void 4253void
3844ev_child_start (EV_P_ ev_child *w) EV_THROW 4254ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3845{ 4255{
3846#if EV_MULTIPLICITY 4256#if EV_MULTIPLICITY
3847 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4257 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3848#endif 4258#endif
3849 if (expect_false (ev_is_active (w))) 4259 if (expect_false (ev_is_active (w)))
… …
3856 4266
3857 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3858} 4268}
3859 4269
3860void 4270void
3861ev_child_stop (EV_P_ ev_child *w) EV_THROW 4271ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3862{ 4272{
3863 clear_pending (EV_A_ (W)w); 4273 clear_pending (EV_A_ (W)w);
3864 if (expect_false (!ev_is_active (w))) 4274 if (expect_false (!ev_is_active (w)))
3865 return; 4275 return;
3866 4276
… …
3883 4293
3884#define DEF_STAT_INTERVAL 5.0074891 4294#define DEF_STAT_INTERVAL 5.0074891
3885#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4295#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3886#define MIN_STAT_INTERVAL 0.1074891 4296#define MIN_STAT_INTERVAL 0.1074891
3887 4297
3888static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4298noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3889 4299
3890#if EV_USE_INOTIFY 4300#if EV_USE_INOTIFY
3891 4301
3892/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4302/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3893# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4303# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3894 4304
3895static void noinline 4305noinline
4306static void
3896infy_add (EV_P_ ev_stat *w) 4307infy_add (EV_P_ ev_stat *w)
3897{ 4308{
3898 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 4309 w->wd = inotify_add_watch (fs_fd, w->path,
4310 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4311 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4312 | IN_DONT_FOLLOW | IN_MASK_ADD);
3899 4313
3900 if (w->wd >= 0) 4314 if (w->wd >= 0)
3901 { 4315 {
3902 struct statfs sfs; 4316 struct statfs sfs;
3903 4317
… …
3907 4321
3908 if (!fs_2625) 4322 if (!fs_2625)
3909 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4323 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3910 else if (!statfs (w->path, &sfs) 4324 else if (!statfs (w->path, &sfs)
3911 && (sfs.f_type == 0x1373 /* devfs */ 4325 && (sfs.f_type == 0x1373 /* devfs */
4326 || sfs.f_type == 0x4006 /* fat */
4327 || sfs.f_type == 0x4d44 /* msdos */
3912 || sfs.f_type == 0xEF53 /* ext2/3 */ 4328 || sfs.f_type == 0xEF53 /* ext2/3 */
4329 || sfs.f_type == 0x72b6 /* jffs2 */
4330 || sfs.f_type == 0x858458f6 /* ramfs */
4331 || sfs.f_type == 0x5346544e /* ntfs */
3913 || sfs.f_type == 0x3153464a /* jfs */ 4332 || sfs.f_type == 0x3153464a /* jfs */
4333 || sfs.f_type == 0x9123683e /* btrfs */
3914 || sfs.f_type == 0x52654973 /* reiser3 */ 4334 || sfs.f_type == 0x52654973 /* reiser3 */
3915 || sfs.f_type == 0x01021994 /* tempfs */ 4335 || sfs.f_type == 0x01021994 /* tmpfs */
3916 || sfs.f_type == 0x58465342 /* xfs */)) 4336 || sfs.f_type == 0x58465342 /* xfs */))
3917 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4337 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3918 else 4338 else
3919 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4339 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3920 } 4340 }
… …
3955 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4375 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3956 ev_timer_again (EV_A_ &w->timer); 4376 ev_timer_again (EV_A_ &w->timer);
3957 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4377 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3958} 4378}
3959 4379
3960static void noinline 4380noinline
4381static void
3961infy_del (EV_P_ ev_stat *w) 4382infy_del (EV_P_ ev_stat *w)
3962{ 4383{
3963 int slot; 4384 int slot;
3964 int wd = w->wd; 4385 int wd = w->wd;
3965 4386
… …
3972 4393
3973 /* remove this watcher, if others are watching it, they will rearm */ 4394 /* remove this watcher, if others are watching it, they will rearm */
3974 inotify_rm_watch (fs_fd, wd); 4395 inotify_rm_watch (fs_fd, wd);
3975} 4396}
3976 4397
3977static void noinline 4398noinline
4399static void
3978infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4400infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3979{ 4401{
3980 if (slot < 0) 4402 if (slot < 0)
3981 /* overflow, need to check for all hash slots */ 4403 /* overflow, need to check for all hash slots */
3982 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4404 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4018 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4440 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4019 ofs += sizeof (struct inotify_event) + ev->len; 4441 ofs += sizeof (struct inotify_event) + ev->len;
4020 } 4442 }
4021} 4443}
4022 4444
4023inline_size void ecb_cold 4445inline_size ecb_cold
4446void
4024ev_check_2625 (EV_P) 4447ev_check_2625 (EV_P)
4025{ 4448{
4026 /* kernels < 2.6.25 are borked 4449 /* kernels < 2.6.25 are borked
4027 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4450 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4028 */ 4451 */
… …
4118#else 4541#else
4119# define EV_LSTAT(p,b) lstat (p, b) 4542# define EV_LSTAT(p,b) lstat (p, b)
4120#endif 4543#endif
4121 4544
4122void 4545void
4123ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4546ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4124{ 4547{
4125 if (lstat (w->path, &w->attr) < 0) 4548 if (lstat (w->path, &w->attr) < 0)
4126 w->attr.st_nlink = 0; 4549 w->attr.st_nlink = 0;
4127 else if (!w->attr.st_nlink) 4550 else if (!w->attr.st_nlink)
4128 w->attr.st_nlink = 1; 4551 w->attr.st_nlink = 1;
4129} 4552}
4130 4553
4131static void noinline 4554noinline
4555static void
4132stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4556stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4133{ 4557{
4134 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4558 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4135 4559
4136 ev_statdata prev = w->attr; 4560 ev_statdata prev = w->attr;
… …
4167 ev_feed_event (EV_A_ w, EV_STAT); 4591 ev_feed_event (EV_A_ w, EV_STAT);
4168 } 4592 }
4169} 4593}
4170 4594
4171void 4595void
4172ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4596ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4173{ 4597{
4174 if (expect_false (ev_is_active (w))) 4598 if (expect_false (ev_is_active (w)))
4175 return; 4599 return;
4176 4600
4177 ev_stat_stat (EV_A_ w); 4601 ev_stat_stat (EV_A_ w);
… …
4198 4622
4199 EV_FREQUENT_CHECK; 4623 EV_FREQUENT_CHECK;
4200} 4624}
4201 4625
4202void 4626void
4203ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4627ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4204{ 4628{
4205 clear_pending (EV_A_ (W)w); 4629 clear_pending (EV_A_ (W)w);
4206 if (expect_false (!ev_is_active (w))) 4630 if (expect_false (!ev_is_active (w)))
4207 return; 4631 return;
4208 4632
… …
4224} 4648}
4225#endif 4649#endif
4226 4650
4227#if EV_IDLE_ENABLE 4651#if EV_IDLE_ENABLE
4228void 4652void
4229ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4653ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4230{ 4654{
4231 if (expect_false (ev_is_active (w))) 4655 if (expect_false (ev_is_active (w)))
4232 return; 4656 return;
4233 4657
4234 pri_adjust (EV_A_ (W)w); 4658 pri_adjust (EV_A_ (W)w);
… …
4239 int active = ++idlecnt [ABSPRI (w)]; 4663 int active = ++idlecnt [ABSPRI (w)];
4240 4664
4241 ++idleall; 4665 ++idleall;
4242 ev_start (EV_A_ (W)w, active); 4666 ev_start (EV_A_ (W)w, active);
4243 4667
4244 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4668 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4245 idles [ABSPRI (w)][active - 1] = w; 4669 idles [ABSPRI (w)][active - 1] = w;
4246 } 4670 }
4247 4671
4248 EV_FREQUENT_CHECK; 4672 EV_FREQUENT_CHECK;
4249} 4673}
4250 4674
4251void 4675void
4252ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4676ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4253{ 4677{
4254 clear_pending (EV_A_ (W)w); 4678 clear_pending (EV_A_ (W)w);
4255 if (expect_false (!ev_is_active (w))) 4679 if (expect_false (!ev_is_active (w)))
4256 return; 4680 return;
4257 4681
… …
4271} 4695}
4272#endif 4696#endif
4273 4697
4274#if EV_PREPARE_ENABLE 4698#if EV_PREPARE_ENABLE
4275void 4699void
4276ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4700ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4277{ 4701{
4278 if (expect_false (ev_is_active (w))) 4702 if (expect_false (ev_is_active (w)))
4279 return; 4703 return;
4280 4704
4281 EV_FREQUENT_CHECK; 4705 EV_FREQUENT_CHECK;
4282 4706
4283 ev_start (EV_A_ (W)w, ++preparecnt); 4707 ev_start (EV_A_ (W)w, ++preparecnt);
4284 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4708 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4285 prepares [preparecnt - 1] = w; 4709 prepares [preparecnt - 1] = w;
4286 4710
4287 EV_FREQUENT_CHECK; 4711 EV_FREQUENT_CHECK;
4288} 4712}
4289 4713
4290void 4714void
4291ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4715ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4292{ 4716{
4293 clear_pending (EV_A_ (W)w); 4717 clear_pending (EV_A_ (W)w);
4294 if (expect_false (!ev_is_active (w))) 4718 if (expect_false (!ev_is_active (w)))
4295 return; 4719 return;
4296 4720
… …
4309} 4733}
4310#endif 4734#endif
4311 4735
4312#if EV_CHECK_ENABLE 4736#if EV_CHECK_ENABLE
4313void 4737void
4314ev_check_start (EV_P_ ev_check *w) EV_THROW 4738ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4315{ 4739{
4316 if (expect_false (ev_is_active (w))) 4740 if (expect_false (ev_is_active (w)))
4317 return; 4741 return;
4318 4742
4319 EV_FREQUENT_CHECK; 4743 EV_FREQUENT_CHECK;
4320 4744
4321 ev_start (EV_A_ (W)w, ++checkcnt); 4745 ev_start (EV_A_ (W)w, ++checkcnt);
4322 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4746 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4323 checks [checkcnt - 1] = w; 4747 checks [checkcnt - 1] = w;
4324 4748
4325 EV_FREQUENT_CHECK; 4749 EV_FREQUENT_CHECK;
4326} 4750}
4327 4751
4328void 4752void
4329ev_check_stop (EV_P_ ev_check *w) EV_THROW 4753ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4330{ 4754{
4331 clear_pending (EV_A_ (W)w); 4755 clear_pending (EV_A_ (W)w);
4332 if (expect_false (!ev_is_active (w))) 4756 if (expect_false (!ev_is_active (w)))
4333 return; 4757 return;
4334 4758
… …
4346 EV_FREQUENT_CHECK; 4770 EV_FREQUENT_CHECK;
4347} 4771}
4348#endif 4772#endif
4349 4773
4350#if EV_EMBED_ENABLE 4774#if EV_EMBED_ENABLE
4351void noinline 4775noinline
4776void
4352ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4777ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4353{ 4778{
4354 ev_run (w->other, EVRUN_NOWAIT); 4779 ev_run (w->other, EVRUN_NOWAIT);
4355} 4780}
4356 4781
4357static void 4782static void
… …
4405 ev_idle_stop (EV_A_ idle); 4830 ev_idle_stop (EV_A_ idle);
4406} 4831}
4407#endif 4832#endif
4408 4833
4409void 4834void
4410ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4835ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4411{ 4836{
4412 if (expect_false (ev_is_active (w))) 4837 if (expect_false (ev_is_active (w)))
4413 return; 4838 return;
4414 4839
4415 { 4840 {
… …
4436 4861
4437 EV_FREQUENT_CHECK; 4862 EV_FREQUENT_CHECK;
4438} 4863}
4439 4864
4440void 4865void
4441ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4866ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4442{ 4867{
4443 clear_pending (EV_A_ (W)w); 4868 clear_pending (EV_A_ (W)w);
4444 if (expect_false (!ev_is_active (w))) 4869 if (expect_false (!ev_is_active (w)))
4445 return; 4870 return;
4446 4871
… …
4456} 4881}
4457#endif 4882#endif
4458 4883
4459#if EV_FORK_ENABLE 4884#if EV_FORK_ENABLE
4460void 4885void
4461ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4886ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4462{ 4887{
4463 if (expect_false (ev_is_active (w))) 4888 if (expect_false (ev_is_active (w)))
4464 return; 4889 return;
4465 4890
4466 EV_FREQUENT_CHECK; 4891 EV_FREQUENT_CHECK;
4467 4892
4468 ev_start (EV_A_ (W)w, ++forkcnt); 4893 ev_start (EV_A_ (W)w, ++forkcnt);
4469 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4894 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4470 forks [forkcnt - 1] = w; 4895 forks [forkcnt - 1] = w;
4471 4896
4472 EV_FREQUENT_CHECK; 4897 EV_FREQUENT_CHECK;
4473} 4898}
4474 4899
4475void 4900void
4476ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4901ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4477{ 4902{
4478 clear_pending (EV_A_ (W)w); 4903 clear_pending (EV_A_ (W)w);
4479 if (expect_false (!ev_is_active (w))) 4904 if (expect_false (!ev_is_active (w)))
4480 return; 4905 return;
4481 4906
… …
4494} 4919}
4495#endif 4920#endif
4496 4921
4497#if EV_CLEANUP_ENABLE 4922#if EV_CLEANUP_ENABLE
4498void 4923void
4499ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4924ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4500{ 4925{
4501 if (expect_false (ev_is_active (w))) 4926 if (expect_false (ev_is_active (w)))
4502 return; 4927 return;
4503 4928
4504 EV_FREQUENT_CHECK; 4929 EV_FREQUENT_CHECK;
4505 4930
4506 ev_start (EV_A_ (W)w, ++cleanupcnt); 4931 ev_start (EV_A_ (W)w, ++cleanupcnt);
4507 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4932 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4508 cleanups [cleanupcnt - 1] = w; 4933 cleanups [cleanupcnt - 1] = w;
4509 4934
4510 /* cleanup watchers should never keep a refcount on the loop */ 4935 /* cleanup watchers should never keep a refcount on the loop */
4511 ev_unref (EV_A); 4936 ev_unref (EV_A);
4512 EV_FREQUENT_CHECK; 4937 EV_FREQUENT_CHECK;
4513} 4938}
4514 4939
4515void 4940void
4516ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4941ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4517{ 4942{
4518 clear_pending (EV_A_ (W)w); 4943 clear_pending (EV_A_ (W)w);
4519 if (expect_false (!ev_is_active (w))) 4944 if (expect_false (!ev_is_active (w)))
4520 return; 4945 return;
4521 4946
… …
4535} 4960}
4536#endif 4961#endif
4537 4962
4538#if EV_ASYNC_ENABLE 4963#if EV_ASYNC_ENABLE
4539void 4964void
4540ev_async_start (EV_P_ ev_async *w) EV_THROW 4965ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4541{ 4966{
4542 if (expect_false (ev_is_active (w))) 4967 if (expect_false (ev_is_active (w)))
4543 return; 4968 return;
4544 4969
4545 w->sent = 0; 4970 w->sent = 0;
… …
4547 evpipe_init (EV_A); 4972 evpipe_init (EV_A);
4548 4973
4549 EV_FREQUENT_CHECK; 4974 EV_FREQUENT_CHECK;
4550 4975
4551 ev_start (EV_A_ (W)w, ++asynccnt); 4976 ev_start (EV_A_ (W)w, ++asynccnt);
4552 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4977 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4553 asyncs [asynccnt - 1] = w; 4978 asyncs [asynccnt - 1] = w;
4554 4979
4555 EV_FREQUENT_CHECK; 4980 EV_FREQUENT_CHECK;
4556} 4981}
4557 4982
4558void 4983void
4559ev_async_stop (EV_P_ ev_async *w) EV_THROW 4984ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4560{ 4985{
4561 clear_pending (EV_A_ (W)w); 4986 clear_pending (EV_A_ (W)w);
4562 if (expect_false (!ev_is_active (w))) 4987 if (expect_false (!ev_is_active (w)))
4563 return; 4988 return;
4564 4989
… …
4575 5000
4576 EV_FREQUENT_CHECK; 5001 EV_FREQUENT_CHECK;
4577} 5002}
4578 5003
4579void 5004void
4580ev_async_send (EV_P_ ev_async *w) EV_THROW 5005ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4581{ 5006{
4582 w->sent = 1; 5007 w->sent = 1;
4583 evpipe_write (EV_A_ &async_pending); 5008 evpipe_write (EV_A_ &async_pending);
4584} 5009}
4585#endif 5010#endif
… …
4622 5047
4623 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5048 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4624} 5049}
4625 5050
4626void 5051void
4627ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5052ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4628{ 5053{
4629 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5054 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4630
4631 if (expect_false (!once))
4632 {
4633 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4634 return;
4635 }
4636 5055
4637 once->cb = cb; 5056 once->cb = cb;
4638 once->arg = arg; 5057 once->arg = arg;
4639 5058
4640 ev_init (&once->io, once_cb_io); 5059 ev_init (&once->io, once_cb_io);
… …
4653} 5072}
4654 5073
4655/*****************************************************************************/ 5074/*****************************************************************************/
4656 5075
4657#if EV_WALK_ENABLE 5076#if EV_WALK_ENABLE
4658void ecb_cold 5077ecb_cold
5078void
4659ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5079ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4660{ 5080{
4661 int i, j; 5081 int i, j;
4662 ev_watcher_list *wl, *wn; 5082 ev_watcher_list *wl, *wn;
4663 5083
4664 if (types & (EV_IO | EV_EMBED)) 5084 if (types & (EV_IO | EV_EMBED))

Diff Legend

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