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Comparing libev/ev.c (file contents):
Revision 1.452 by root, Mon Feb 18 03:20:29 2013 UTC vs.
Revision 1.492 by root, Sat Jun 22 16:25:53 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# 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
… …
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
360#endif 385#endif
361 386
362#ifdef ANDROID 387#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 388/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 389# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 390# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL 392# undef EV_USE_CLOCK_SYSCALL
… …
371/* aix's poll.h seems to cause lots of trouble */ 396/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX 397#ifdef _AIX
373/* AIX has a completely broken poll.h header */ 398/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL 399# undef EV_USE_POLL
375# define EV_USE_POLL 0 400# define EV_USE_POLL 0
401#endif
402
403#if EV_USE_LINUXAIO
404# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
376#endif 405#endif
377 406
378/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 407/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
379/* which makes programs even slower. might work on other unices, too. */ 408/* which makes programs even slower. might work on other unices, too. */
380#if EV_USE_CLOCK_SYSCALL 409#if EV_USE_CLOCK_SYSCALL
… …
408 437
409#if !EV_USE_NANOSLEEP 438#if !EV_USE_NANOSLEEP
410/* hp-ux has it in sys/time.h, which we unconditionally include above */ 439/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux 440# if !defined _WIN32 && !defined __hpux
412# include <sys/select.h> 441# include <sys/select.h>
442# endif
443#endif
444
445#if EV_USE_LINUXAIO
446# include <sys/syscall.h>
447# if !SYS_io_getevents
448# undef EV_USE_LINUXAIO
449# define EV_USE_LINUXAIO 0
413# endif 450# endif
414#endif 451#endif
415 452
416#if EV_USE_INOTIFY 453#if EV_USE_INOTIFY
417# include <sys/statfs.h> 454# include <sys/statfs.h>
… …
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 522/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 523/* ECB.H BEGIN */
487/* 524/*
488 * libecb - http://software.schmorp.de/pkg/libecb 525 * libecb - http://software.schmorp.de/pkg/libecb
489 * 526 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 527 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 528 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 529 * All rights reserved.
493 * 530 *
494 * Redistribution and use in source and binary forms, with or without modifica- 531 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 532 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 546 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 547 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 548 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 549 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 550 * OF THE POSSIBILITY OF SUCH DAMAGE.
551 *
552 * Alternatively, the contents of this file may be used under the terms of
553 * the GNU General Public License ("GPL") version 2 or any later version,
554 * in which case the provisions of the GPL are applicable instead of
555 * the above. If you wish to allow the use of your version of this file
556 * only under the terms of the GPL and not to allow others to use your
557 * version of this file under the BSD license, indicate your decision
558 * by deleting the provisions above and replace them with the notice
559 * and other provisions required by the GPL. If you do not delete the
560 * provisions above, a recipient may use your version of this file under
561 * either the BSD or the GPL.
514 */ 562 */
515 563
516#ifndef ECB_H 564#ifndef ECB_H
517#define ECB_H 565#define ECB_H
518 566
519/* 16 bits major, 16 bits minor */ 567/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010002 568#define ECB_VERSION 0x00010005
521 569
522#ifdef _WIN32 570#ifdef _WIN32
523 typedef signed char int8_t; 571 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 572 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 573 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 590 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 591 typedef int32_t intptr_t;
544 #endif 592 #endif
545#else 593#else
546 #include <inttypes.h> 594 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 595 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 596 #define ECB_PTRSIZE 8
549 #else 597 #else
550 #define ECB_PTRSIZE 4 598 #define ECB_PTRSIZE 4
599 #endif
600#endif
601
602#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
603#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
604
605/* work around x32 idiocy by defining proper macros */
606#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
607 #if _ILP32
608 #define ECB_AMD64_X32 1
609 #else
610 #define ECB_AMD64 1
551 #endif 611 #endif
552#endif 612#endif
553 613
554/* many compilers define _GNUC_ to some versions but then only implement 614/* many compilers define _GNUC_ to some versions but then only implement
555 * what their idiot authors think are the "more important" extensions, 615 * what their idiot authors think are the "more important" extensions,
556 * causing enormous grief in return for some better fake benchmark numbers. 616 * causing enormous grief in return for some better fake benchmark numbers.
557 * or so. 617 * or so.
558 * we try to detect these and simply assume they are not gcc - if they have 618 * we try to detect these and simply assume they are not gcc - if they have
559 * an issue with that they should have done it right in the first place. 619 * an issue with that they should have done it right in the first place.
560 */ 620 */
561#ifndef ECB_GCC_VERSION
562 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 621#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
563 #define ECB_GCC_VERSION(major,minor) 0 622 #define ECB_GCC_VERSION(major,minor) 0
564 #else 623#else
565 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 624 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
566 #endif 625#endif
567#endif
568 626
569#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 627#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
570#define ECB_C99 (__STDC_VERSION__ >= 199901L) 628
571#define ECB_C11 (__STDC_VERSION__ >= 201112L) 629#if __clang__ && defined __has_builtin
630 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
631#else
632 #define ECB_CLANG_BUILTIN(x) 0
633#endif
634
635#if __clang__ && defined __has_extension
636 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
637#else
638 #define ECB_CLANG_EXTENSION(x) 0
639#endif
640
572#define ECB_CPP (__cplusplus+0) 641#define ECB_CPP (__cplusplus+0)
573#define ECB_CPP11 (__cplusplus >= 201103L) 642#define ECB_CPP11 (__cplusplus >= 201103L)
643#define ECB_CPP14 (__cplusplus >= 201402L)
644#define ECB_CPP17 (__cplusplus >= 201703L)
645
646#if ECB_CPP
647 #define ECB_C 0
648 #define ECB_STDC_VERSION 0
649#else
650 #define ECB_C 1
651 #define ECB_STDC_VERSION __STDC_VERSION__
652#endif
653
654#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
655#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
656#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
574 657
575#if ECB_CPP 658#if ECB_CPP
576 #define ECB_EXTERN_C extern "C" 659 #define ECB_EXTERN_C extern "C"
577 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 660 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
578 #define ECB_EXTERN_C_END } 661 #define ECB_EXTERN_C_END }
… …
591 #define ECB_NO_SMP 1 674 #define ECB_NO_SMP 1
592#endif 675#endif
593 676
594#if ECB_NO_SMP 677#if ECB_NO_SMP
595 #define ECB_MEMORY_FENCE do { } while (0) 678 #define ECB_MEMORY_FENCE do { } while (0)
679#endif
680
681/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
682#if __xlC__ && ECB_CPP
683 #include <builtins.h>
684#endif
685
686#if 1400 <= _MSC_VER
687 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
596#endif 688#endif
597 689
598#ifndef ECB_MEMORY_FENCE 690#ifndef ECB_MEMORY_FENCE
599 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 691 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600 #if __i386 || __i386__ 692 #if __i386 || __i386__
601 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 693 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 694 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 695 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 696 #elif ECB_GCC_AMD64
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 697 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
606 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 698 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 699 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 700 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 701 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
702 #elif defined __ARM_ARCH_2__ \
703 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
704 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
705 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
706 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
707 || defined __ARM_ARCH_5TEJ__
708 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 709 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 710 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
711 || defined __ARM_ARCH_6T2__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 712 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 713 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 714 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 715 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__ 716 #elif __aarch64__
717 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
718 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 719 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 720 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 721 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__ 722 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 723 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #elif defined __mips__ 724 #elif defined __mips__
725 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
726 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 727 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
624 #elif defined __alpha__ 728 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 729 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__ 730 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 731 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 732 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__ 733 #elif defined __ia64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 734 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
735 #elif defined __m68k__
736 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
737 #elif defined __m88k__
738 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
739 #elif defined __sh__
740 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
631 #endif 741 #endif
632 #endif 742 #endif
633#endif 743#endif
634 744
635#ifndef ECB_MEMORY_FENCE 745#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7) 746 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */ 747 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 748 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
749 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
750 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
639 751
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 752 #elif ECB_CLANG_EXTENSION(c_atomic)
641 * without risking compile time errors with other compilers. We *could*
642 * define our own ecb_clang_has_feature, but I just can't be bothered to work
643 * around this shit time and again.
644 * #elif defined __clang && __has_feature (cxx_atomic)
645 * // see comment below (stdatomic.h) about the C11 memory model. 753 /* see comment below (stdatomic.h) about the C11 memory model. */
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 754 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */ 755 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
756 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
648 757
649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 758 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
650 #define ECB_MEMORY_FENCE __sync_synchronize () 759 #define ECB_MEMORY_FENCE __sync_synchronize ()
760 #elif _MSC_VER >= 1500 /* VC++ 2008 */
761 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
762 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
763 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
764 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
765 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
651 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 766 #elif _MSC_VER >= 1400 /* VC++ 2005 */
652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 767 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
653 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 768 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
654 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 769 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 770 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
675 /* any fence other than seq_cst, which isn't very efficient for us. */ 790 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */ 791 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */ 792 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */ 793 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */ 794 /* all three of ecb's fences as a seq_cst fence */
795 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
796 /* for all __atomic_thread_fence's except seq_cst */
680 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 797 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
681 #endif 798 #endif
682#endif 799#endif
683 800
684#ifndef ECB_MEMORY_FENCE 801#ifndef ECB_MEMORY_FENCE
… …
707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 824 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
708#endif 825#endif
709 826
710/*****************************************************************************/ 827/*****************************************************************************/
711 828
712#if __cplusplus 829#if ECB_CPP
713 #define ecb_inline static inline 830 #define ecb_inline static inline
714#elif ECB_GCC_VERSION(2,5) 831#elif ECB_GCC_VERSION(2,5)
715 #define ecb_inline static __inline__ 832 #define ecb_inline static __inline__
716#elif ECB_C99 833#elif ECB_C99
717 #define ecb_inline static inline 834 #define ecb_inline static inline
… …
731 848
732#define ECB_CONCAT_(a, b) a ## b 849#define ECB_CONCAT_(a, b) a ## b
733#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 850#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
734#define ECB_STRINGIFY_(a) # a 851#define ECB_STRINGIFY_(a) # a
735#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 852#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
853#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
736 854
737#define ecb_function_ ecb_inline 855#define ecb_function_ ecb_inline
738 856
739#if ECB_GCC_VERSION(3,1) 857#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
740 #define ecb_attribute(attrlist) __attribute__(attrlist) 858 #define ecb_attribute(attrlist) __attribute__ (attrlist)
859#else
860 #define ecb_attribute(attrlist)
861#endif
862
863#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
741 #define ecb_is_constant(expr) __builtin_constant_p (expr) 864 #define ecb_is_constant(expr) __builtin_constant_p (expr)
865#else
866 /* possible C11 impl for integral types
867 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
868 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
869
870 #define ecb_is_constant(expr) 0
871#endif
872
873#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
742 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 874 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
875#else
876 #define ecb_expect(expr,value) (expr)
877#endif
878
879#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
743 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 880 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
744#else 881#else
745 #define ecb_attribute(attrlist)
746 #define ecb_is_constant(expr) 0
747 #define ecb_expect(expr,value) (expr)
748 #define ecb_prefetch(addr,rw,locality) 882 #define ecb_prefetch(addr,rw,locality)
749#endif 883#endif
750 884
751/* no emulation for ecb_decltype */ 885/* no emulation for ecb_decltype */
752#if ECB_GCC_VERSION(4,5) 886#if ECB_CPP11
887 // older implementations might have problems with decltype(x)::type, work around it
888 template<class T> struct ecb_decltype_t { typedef T type; };
753 #define ecb_decltype(x) __decltype(x) 889 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
754#elif ECB_GCC_VERSION(3,0) 890#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
755 #define ecb_decltype(x) __typeof(x) 891 #define ecb_decltype(x) __typeof__ (x)
756#endif 892#endif
757 893
894#if _MSC_VER >= 1300
895 #define ecb_deprecated __declspec (deprecated)
896#else
897 #define ecb_deprecated ecb_attribute ((__deprecated__))
898#endif
899
900#if _MSC_VER >= 1500
901 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
902#elif ECB_GCC_VERSION(4,5)
903 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
904#else
905 #define ecb_deprecated_message(msg) ecb_deprecated
906#endif
907
908#if _MSC_VER >= 1400
909 #define ecb_noinline __declspec (noinline)
910#else
758#define ecb_noinline ecb_attribute ((__noinline__)) 911 #define ecb_noinline ecb_attribute ((__noinline__))
912#endif
913
759#define ecb_unused ecb_attribute ((__unused__)) 914#define ecb_unused ecb_attribute ((__unused__))
760#define ecb_const ecb_attribute ((__const__)) 915#define ecb_const ecb_attribute ((__const__))
761#define ecb_pure ecb_attribute ((__pure__)) 916#define ecb_pure ecb_attribute ((__pure__))
762 917
763#if ECB_C11 918#if ECB_C11 || __IBMC_NORETURN
919 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
764 #define ecb_noreturn _Noreturn 920 #define ecb_noreturn _Noreturn
921#elif ECB_CPP11
922 #define ecb_noreturn [[noreturn]]
923#elif _MSC_VER >= 1200
924 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
925 #define ecb_noreturn __declspec (noreturn)
765#else 926#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__)) 927 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif 928#endif
768 929
769#if ECB_GCC_VERSION(4,3) 930#if ECB_GCC_VERSION(4,3)
… …
784/* for compatibility to the rest of the world */ 945/* for compatibility to the rest of the world */
785#define ecb_likely(expr) ecb_expect_true (expr) 946#define ecb_likely(expr) ecb_expect_true (expr)
786#define ecb_unlikely(expr) ecb_expect_false (expr) 947#define ecb_unlikely(expr) ecb_expect_false (expr)
787 948
788/* count trailing zero bits and count # of one bits */ 949/* count trailing zero bits and count # of one bits */
789#if ECB_GCC_VERSION(3,4) 950#if ECB_GCC_VERSION(3,4) \
951 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
952 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
953 && ECB_CLANG_BUILTIN(__builtin_popcount))
790 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 954 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
791 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 955 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
792 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 956 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
793 #define ecb_ctz32(x) __builtin_ctz (x) 957 #define ecb_ctz32(x) __builtin_ctz (x)
794 #define ecb_ctz64(x) __builtin_ctzll (x) 958 #define ecb_ctz64(x) __builtin_ctzll (x)
795 #define ecb_popcount32(x) __builtin_popcount (x) 959 #define ecb_popcount32(x) __builtin_popcount (x)
796 /* no popcountll */ 960 /* no popcountll */
797#else 961#else
798 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 962 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
799 ecb_function_ int 963 ecb_function_ ecb_const int
800 ecb_ctz32 (uint32_t x) 964 ecb_ctz32 (uint32_t x)
801 { 965 {
966#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
967 unsigned long r;
968 _BitScanForward (&r, x);
969 return (int)r;
970#else
802 int r = 0; 971 int r = 0;
803 972
804 x &= ~x + 1; /* this isolates the lowest bit */ 973 x &= ~x + 1; /* this isolates the lowest bit */
805 974
806#if ECB_branchless_on_i386 975#if ECB_branchless_on_i386
… …
816 if (x & 0xff00ff00) r += 8; 985 if (x & 0xff00ff00) r += 8;
817 if (x & 0xffff0000) r += 16; 986 if (x & 0xffff0000) r += 16;
818#endif 987#endif
819 988
820 return r; 989 return r;
990#endif
821 } 991 }
822 992
823 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 993 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
824 ecb_function_ int 994 ecb_function_ ecb_const int
825 ecb_ctz64 (uint64_t x) 995 ecb_ctz64 (uint64_t x)
826 { 996 {
997#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
998 unsigned long r;
999 _BitScanForward64 (&r, x);
1000 return (int)r;
1001#else
827 int shift = x & 0xffffffffU ? 0 : 32; 1002 int shift = x & 0xffffffff ? 0 : 32;
828 return ecb_ctz32 (x >> shift) + shift; 1003 return ecb_ctz32 (x >> shift) + shift;
1004#endif
829 } 1005 }
830 1006
831 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1007 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
832 ecb_function_ int 1008 ecb_function_ ecb_const int
833 ecb_popcount32 (uint32_t x) 1009 ecb_popcount32 (uint32_t x)
834 { 1010 {
835 x -= (x >> 1) & 0x55555555; 1011 x -= (x >> 1) & 0x55555555;
836 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1012 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
837 x = ((x >> 4) + x) & 0x0f0f0f0f; 1013 x = ((x >> 4) + x) & 0x0f0f0f0f;
838 x *= 0x01010101; 1014 x *= 0x01010101;
839 1015
840 return x >> 24; 1016 return x >> 24;
841 } 1017 }
842 1018
843 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1019 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
844 ecb_function_ int ecb_ld32 (uint32_t x) 1020 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
845 { 1021 {
1022#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1023 unsigned long r;
1024 _BitScanReverse (&r, x);
1025 return (int)r;
1026#else
846 int r = 0; 1027 int r = 0;
847 1028
848 if (x >> 16) { x >>= 16; r += 16; } 1029 if (x >> 16) { x >>= 16; r += 16; }
849 if (x >> 8) { x >>= 8; r += 8; } 1030 if (x >> 8) { x >>= 8; r += 8; }
850 if (x >> 4) { x >>= 4; r += 4; } 1031 if (x >> 4) { x >>= 4; r += 4; }
851 if (x >> 2) { x >>= 2; r += 2; } 1032 if (x >> 2) { x >>= 2; r += 2; }
852 if (x >> 1) { r += 1; } 1033 if (x >> 1) { r += 1; }
853 1034
854 return r; 1035 return r;
1036#endif
855 } 1037 }
856 1038
857 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1039 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
858 ecb_function_ int ecb_ld64 (uint64_t x) 1040 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
859 { 1041 {
1042#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1043 unsigned long r;
1044 _BitScanReverse64 (&r, x);
1045 return (int)r;
1046#else
860 int r = 0; 1047 int r = 0;
861 1048
862 if (x >> 32) { x >>= 32; r += 32; } 1049 if (x >> 32) { x >>= 32; r += 32; }
863 1050
864 return r + ecb_ld32 (x); 1051 return r + ecb_ld32 (x);
1052#endif
865 } 1053 }
866#endif 1054#endif
867 1055
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1056ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
869ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1057ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
870ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1058ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
871ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1059ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
872 1060
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1061ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1062ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
875{ 1063{
876 return ( (x * 0x0802U & 0x22110U) 1064 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1065 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878} 1066}
879 1067
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1068ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1069ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
882{ 1070{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1071 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1072 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1073 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8); 1074 x = ( x >> 8 ) | ( x << 8);
887 1075
888 return x; 1076 return x;
889} 1077}
890 1078
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1079ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1080ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
893{ 1081{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1082 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1083 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1084 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1085 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
900 return x; 1088 return x;
901} 1089}
902 1090
903/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1091/* popcount64 is only available on 64 bit cpus as gcc builtin */
904/* so for this version we are lazy */ 1092/* so for this version we are lazy */
905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1093ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
906ecb_function_ int 1094ecb_function_ ecb_const int
907ecb_popcount64 (uint64_t x) 1095ecb_popcount64 (uint64_t x)
908{ 1096{
909 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1097 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
910} 1098}
911 1099
912ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
913ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
914ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
915ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
916ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1104ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
917ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1105ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
918ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1106ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
919ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1107ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
920 1108
921ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1109ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
922ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1110ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
923ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1111ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
924ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1112ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
925ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1113ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
926ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1114ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
927ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1115ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
928ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1116ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
929 1117
930#if ECB_GCC_VERSION(4,3) 1118#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1119 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1120 #define ecb_bswap16(x) __builtin_bswap16 (x)
1121 #else
931 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1122 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1123 #endif
932 #define ecb_bswap32(x) __builtin_bswap32 (x) 1124 #define ecb_bswap32(x) __builtin_bswap32 (x)
933 #define ecb_bswap64(x) __builtin_bswap64 (x) 1125 #define ecb_bswap64(x) __builtin_bswap64 (x)
1126#elif _MSC_VER
1127 #include <stdlib.h>
1128 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1129 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1130 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
934#else 1131#else
935 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1132 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
936 ecb_function_ uint16_t 1133 ecb_function_ ecb_const uint16_t
937 ecb_bswap16 (uint16_t x) 1134 ecb_bswap16 (uint16_t x)
938 { 1135 {
939 return ecb_rotl16 (x, 8); 1136 return ecb_rotl16 (x, 8);
940 } 1137 }
941 1138
942 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1139 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
943 ecb_function_ uint32_t 1140 ecb_function_ ecb_const uint32_t
944 ecb_bswap32 (uint32_t x) 1141 ecb_bswap32 (uint32_t x)
945 { 1142 {
946 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1143 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
947 } 1144 }
948 1145
949 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1146 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
950 ecb_function_ uint64_t 1147 ecb_function_ ecb_const uint64_t
951 ecb_bswap64 (uint64_t x) 1148 ecb_bswap64 (uint64_t x)
952 { 1149 {
953 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1150 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
954 } 1151 }
955#endif 1152#endif
956 1153
957#if ECB_GCC_VERSION(4,5) 1154#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
958 #define ecb_unreachable() __builtin_unreachable () 1155 #define ecb_unreachable() __builtin_unreachable ()
959#else 1156#else
960 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1157 /* this seems to work fine, but gcc always emits a warning for it :/ */
961 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1158 ecb_inline ecb_noreturn void ecb_unreachable (void);
962 ecb_inline void ecb_unreachable (void) { } 1159 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
963#endif 1160#endif
964 1161
965/* try to tell the compiler that some condition is definitely true */ 1162/* try to tell the compiler that some condition is definitely true */
966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1163#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
967 1164
968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1165ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
969ecb_inline unsigned char 1166ecb_inline ecb_const uint32_t
970ecb_byteorder_helper (void) 1167ecb_byteorder_helper (void)
971{ 1168{
972 /* the union code still generates code under pressure in gcc, */ 1169 /* the union code still generates code under pressure in gcc, */
973 /* but less than using pointers, and always seems to */ 1170 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */ 1171 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */ 1172 /* the reason why we have this horrible preprocessor mess */
976 /* is to avoid it in all cases, at least on common architectures */ 1173 /* is to avoid it in all cases, at least on common architectures */
977 /* or when using a recent enough gcc version (>= 4.6) */ 1174 /* or when using a recent enough gcc version (>= 4.6) */
978#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979 return 0x44;
980#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1175#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1176 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1177 #define ECB_LITTLE_ENDIAN 1
981 return 0x44; 1178 return 0x44332211;
982#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1179#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1180 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1181 #define ECB_BIG_ENDIAN 1
983 return 0x11; 1182 return 0x11223344;
984#else 1183#else
985 union 1184 union
986 { 1185 {
1186 uint8_t c[4];
987 uint32_t i; 1187 uint32_t u;
988 uint8_t c;
989 } u = { 0x11223344 }; 1188 } u = { 0x11, 0x22, 0x33, 0x44 };
990 return u.c; 1189 return u.u;
991#endif 1190#endif
992} 1191}
993 1192
994ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1193ecb_inline ecb_const ecb_bool ecb_big_endian (void);
995ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1194ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
996ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1195ecb_inline ecb_const ecb_bool ecb_little_endian (void);
997ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1196ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
998 1197
999#if ECB_GCC_VERSION(3,0) || ECB_C99 1198#if ECB_GCC_VERSION(3,0) || ECB_C99
1000 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1199 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1001#else 1200#else
1002 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1201 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1003#endif 1202#endif
1004 1203
1005#if __cplusplus 1204#if ECB_CPP
1006 template<typename T> 1205 template<typename T>
1007 static inline T ecb_div_rd (T val, T div) 1206 static inline T ecb_div_rd (T val, T div)
1008 { 1207 {
1009 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1208 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010 } 1209 }
… …
1027 } 1226 }
1028#else 1227#else
1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1228 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1030#endif 1229#endif
1031 1230
1231ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1232ecb_function_ ecb_const uint32_t
1233ecb_binary16_to_binary32 (uint32_t x)
1234{
1235 unsigned int s = (x & 0x8000) << (31 - 15);
1236 int e = (x >> 10) & 0x001f;
1237 unsigned int m = x & 0x03ff;
1238
1239 if (ecb_expect_false (e == 31))
1240 /* infinity or NaN */
1241 e = 255 - (127 - 15);
1242 else if (ecb_expect_false (!e))
1243 {
1244 if (ecb_expect_true (!m))
1245 /* zero, handled by code below by forcing e to 0 */
1246 e = 0 - (127 - 15);
1247 else
1248 {
1249 /* subnormal, renormalise */
1250 unsigned int s = 10 - ecb_ld32 (m);
1251
1252 m = (m << s) & 0x3ff; /* mask implicit bit */
1253 e -= s - 1;
1254 }
1255 }
1256
1257 /* e and m now are normalised, or zero, (or inf or nan) */
1258 e += 127 - 15;
1259
1260 return s | (e << 23) | (m << (23 - 10));
1261}
1262
1263ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1264ecb_function_ ecb_const uint16_t
1265ecb_binary32_to_binary16 (uint32_t x)
1266{
1267 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1268 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1269 unsigned int m = x & 0x007fffff;
1270
1271 x &= 0x7fffffff;
1272
1273 /* if it's within range of binary16 normals, use fast path */
1274 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1275 {
1276 /* mantissa round-to-even */
1277 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1278
1279 /* handle overflow */
1280 if (ecb_expect_false (m >= 0x00800000))
1281 {
1282 m >>= 1;
1283 e += 1;
1284 }
1285
1286 return s | (e << 10) | (m >> (23 - 10));
1287 }
1288
1289 /* handle large numbers and infinity */
1290 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1291 return s | 0x7c00;
1292
1293 /* handle zero, subnormals and small numbers */
1294 if (ecb_expect_true (x < 0x38800000))
1295 {
1296 /* zero */
1297 if (ecb_expect_true (!x))
1298 return s;
1299
1300 /* handle subnormals */
1301
1302 /* too small, will be zero */
1303 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1304 return s;
1305
1306 m |= 0x00800000; /* make implicit bit explicit */
1307
1308 /* very tricky - we need to round to the nearest e (+10) bit value */
1309 {
1310 unsigned int bits = 14 - e;
1311 unsigned int half = (1 << (bits - 1)) - 1;
1312 unsigned int even = (m >> bits) & 1;
1313
1314 /* if this overflows, we will end up with a normalised number */
1315 m = (m + half + even) >> bits;
1316 }
1317
1318 return s | m;
1319 }
1320
1321 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1322 m >>= 13;
1323
1324 return s | 0x7c00 | m | !m;
1325}
1326
1032/*******************************************************************************/ 1327/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1328/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034 1329
1035/* basically, everything uses "ieee pure-endian" floating point numbers */ 1330/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1331/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \ 1332#if 0 \
1038 || __i386 || __i386__ \ 1333 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1334 || ECB_GCC_AMD64 \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1335 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \ 1336 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \ 1337 || defined __mips__ \
1044 || defined __alpha__ \ 1338 || defined __alpha__ \
1045 || defined __hppa__ \ 1339 || defined __hppa__ \
1046 || defined __ia64__ \ 1340 || defined __ia64__ \
1341 || defined __m68k__ \
1342 || defined __m88k__ \
1343 || defined __sh__ \
1047 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1344 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1345 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1346 || defined __aarch64__
1048 #define ECB_STDFP 1 1347 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */ 1348 #include <string.h> /* for memcpy */
1050#else 1349#else
1051 #define ECB_STDFP 0 1350 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif 1351#endif
1054 1352
1055#ifndef ECB_NO_LIBM 1353#ifndef ECB_NO_LIBM
1056 1354
1355 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1356
1357 /* only the oldest of old doesn't have this one. solaris. */
1358 #ifdef INFINITY
1359 #define ECB_INFINITY INFINITY
1360 #else
1361 #define ECB_INFINITY HUGE_VAL
1362 #endif
1363
1364 #ifdef NAN
1365 #define ECB_NAN NAN
1366 #else
1367 #define ECB_NAN ECB_INFINITY
1368 #endif
1369
1370 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1371 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1372 #define ecb_frexpf(x,e) frexpf ((x), (e))
1373 #else
1374 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1375 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1376 #endif
1377
1057 /* convert a float to ieee single/binary32 */ 1378 /* convert a float to ieee single/binary32 */
1058 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1379 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1059 ecb_function_ uint32_t 1380 ecb_function_ ecb_const uint32_t
1060 ecb_float_to_binary32 (float x) 1381 ecb_float_to_binary32 (float x)
1061 { 1382 {
1062 uint32_t r; 1383 uint32_t r;
1063 1384
1064 #if ECB_STDFP 1385 #if ECB_STDFP
… …
1071 if (x == 0e0f ) return 0x00000000U; 1392 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1393 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1394 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU; 1395 if (x != x ) return 0x7fbfffffU;
1075 1396
1076 m = frexpf (x, &e) * 0x1000000U; 1397 m = ecb_frexpf (x, &e) * 0x1000000U;
1077 1398
1078 r = m & 0x80000000U; 1399 r = m & 0x80000000U;
1079 1400
1080 if (r) 1401 if (r)
1081 m = -m; 1402 m = -m;
… …
1093 1414
1094 return r; 1415 return r;
1095 } 1416 }
1096 1417
1097 /* converts an ieee single/binary32 to a float */ 1418 /* converts an ieee single/binary32 to a float */
1098 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1419 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1099 ecb_function_ float 1420 ecb_function_ ecb_const float
1100 ecb_binary32_to_float (uint32_t x) 1421 ecb_binary32_to_float (uint32_t x)
1101 { 1422 {
1102 float r; 1423 float r;
1103 1424
1104 #if ECB_STDFP 1425 #if ECB_STDFP
… …
1114 x |= 0x800000U; 1435 x |= 0x800000U;
1115 else 1436 else
1116 e = 1; 1437 e = 1;
1117 1438
1118 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1439 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1440 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1120 1441
1121 r = neg ? -r : r; 1442 r = neg ? -r : r;
1122 #endif 1443 #endif
1123 1444
1124 return r; 1445 return r;
1125 } 1446 }
1126 1447
1127 /* convert a double to ieee double/binary64 */ 1448 /* convert a double to ieee double/binary64 */
1128 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1449 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1129 ecb_function_ uint64_t 1450 ecb_function_ ecb_const uint64_t
1130 ecb_double_to_binary64 (double x) 1451 ecb_double_to_binary64 (double x)
1131 { 1452 {
1132 uint64_t r; 1453 uint64_t r;
1133 1454
1134 #if ECB_STDFP 1455 #if ECB_STDFP
… …
1163 1484
1164 return r; 1485 return r;
1165 } 1486 }
1166 1487
1167 /* converts an ieee double/binary64 to a double */ 1488 /* converts an ieee double/binary64 to a double */
1168 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1489 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1169 ecb_function_ double 1490 ecb_function_ ecb_const double
1170 ecb_binary64_to_double (uint64_t x) 1491 ecb_binary64_to_double (uint64_t x)
1171 { 1492 {
1172 double r; 1493 double r;
1173 1494
1174 #if ECB_STDFP 1495 #if ECB_STDFP
… …
1190 1511
1191 r = neg ? -r : r; 1512 r = neg ? -r : r;
1192 #endif 1513 #endif
1193 1514
1194 return r; 1515 return r;
1516 }
1517
1518 /* convert a float to ieee half/binary16 */
1519 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1520 ecb_function_ ecb_const uint16_t
1521 ecb_float_to_binary16 (float x)
1522 {
1523 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1524 }
1525
1526 /* convert an ieee half/binary16 to float */
1527 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1528 ecb_function_ ecb_const float
1529 ecb_binary16_to_float (uint16_t x)
1530 {
1531 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1195 } 1532 }
1196 1533
1197#endif 1534#endif
1198 1535
1199#endif 1536#endif
… …
1224#define inline_size ecb_inline 1561#define inline_size ecb_inline
1225 1562
1226#if EV_FEATURE_CODE 1563#if EV_FEATURE_CODE
1227# define inline_speed ecb_inline 1564# define inline_speed ecb_inline
1228#else 1565#else
1229# define inline_speed static noinline 1566# define inline_speed noinline static
1230#endif 1567#endif
1231 1568
1232#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1569#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1233 1570
1234#if EV_MINPRI == EV_MAXPRI 1571#if EV_MINPRI == EV_MAXPRI
1235# define ABSPRI(w) (((W)w), 0) 1572# define ABSPRI(w) (((W)w), 0)
1236#else 1573#else
1237# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1574# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1238#endif 1575#endif
1239 1576
1240#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1577#define EMPTY /* required for microsofts broken pseudo-c compiler */
1241#define EMPTY2(a,b) /* used to suppress some warnings */
1242 1578
1243typedef ev_watcher *W; 1579typedef ev_watcher *W;
1244typedef ev_watcher_list *WL; 1580typedef ev_watcher_list *WL;
1245typedef ev_watcher_time *WT; 1581typedef ev_watcher_time *WT;
1246 1582
… …
1281#else 1617#else
1282 1618
1283#include <float.h> 1619#include <float.h>
1284 1620
1285/* a floor() replacement function, should be independent of ev_tstamp type */ 1621/* a floor() replacement function, should be independent of ev_tstamp type */
1622noinline
1286static ev_tstamp noinline 1623static ev_tstamp
1287ev_floor (ev_tstamp v) 1624ev_floor (ev_tstamp v)
1288{ 1625{
1289 /* the choice of shift factor is not terribly important */ 1626 /* the choice of shift factor is not terribly important */
1290#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1627#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1291 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1323 1660
1324#ifdef __linux 1661#ifdef __linux
1325# include <sys/utsname.h> 1662# include <sys/utsname.h>
1326#endif 1663#endif
1327 1664
1328static unsigned int noinline ecb_cold 1665noinline ecb_cold
1666static unsigned int
1329ev_linux_version (void) 1667ev_linux_version (void)
1330{ 1668{
1331#ifdef __linux 1669#ifdef __linux
1332 unsigned int v = 0; 1670 unsigned int v = 0;
1333 struct utsname buf; 1671 struct utsname buf;
… …
1362} 1700}
1363 1701
1364/*****************************************************************************/ 1702/*****************************************************************************/
1365 1703
1366#if EV_AVOID_STDIO 1704#if EV_AVOID_STDIO
1367static void noinline ecb_cold 1705noinline ecb_cold
1706static void
1368ev_printerr (const char *msg) 1707ev_printerr (const char *msg)
1369{ 1708{
1370 write (STDERR_FILENO, msg, strlen (msg)); 1709 write (STDERR_FILENO, msg, strlen (msg));
1371} 1710}
1372#endif 1711#endif
1373 1712
1374static void (*syserr_cb)(const char *msg) EV_THROW; 1713static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1375 1714
1376void ecb_cold 1715ecb_cold
1716void
1377ev_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
1378{ 1718{
1379 syserr_cb = cb; 1719 syserr_cb = cb;
1380} 1720}
1381 1721
1382static void noinline ecb_cold 1722noinline ecb_cold
1723static void
1383ev_syserr (const char *msg) 1724ev_syserr (const char *msg)
1384{ 1725{
1385 if (!msg) 1726 if (!msg)
1386 msg = "(libev) system error"; 1727 msg = "(libev) system error";
1387 1728
… …
1400 abort (); 1741 abort ();
1401 } 1742 }
1402} 1743}
1403 1744
1404static void * 1745static void *
1405ev_realloc_emul (void *ptr, long size) EV_THROW 1746ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1406{ 1747{
1407 /* some systems, notably openbsd and darwin, fail to properly 1748 /* some systems, notably openbsd and darwin, fail to properly
1408 * 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
1409 * the single unix specification, so work around them here. 1750 * the single unix specification, so work around them here.
1410 * recently, also (at least) fedora and debian started breaking it, 1751 * recently, also (at least) fedora and debian started breaking it,
… …
1416 1757
1417 free (ptr); 1758 free (ptr);
1418 return 0; 1759 return 0;
1419} 1760}
1420 1761
1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1762static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1422 1763
1423void ecb_cold 1764ecb_cold
1765void
1424ev_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
1425{ 1767{
1426 alloc = cb; 1768 alloc = cb;
1427} 1769}
1428 1770
1429inline_speed void * 1771inline_speed void *
… …
1456typedef struct 1798typedef struct
1457{ 1799{
1458 WL head; 1800 WL head;
1459 unsigned char events; /* the events watched for */ 1801 unsigned char events; /* the events watched for */
1460 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) */
1461 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 */
1462 unsigned char unused; 1804 unsigned char unused;
1463#if EV_USE_EPOLL 1805#if EV_USE_EPOLL
1464 unsigned int egen; /* generation counter to counter epoll bugs */ 1806 unsigned int egen; /* generation counter to counter epoll bugs */
1465#endif 1807#endif
1466#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1808#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1546 1888
1547/*****************************************************************************/ 1889/*****************************************************************************/
1548 1890
1549#ifndef EV_HAVE_EV_TIME 1891#ifndef EV_HAVE_EV_TIME
1550ev_tstamp 1892ev_tstamp
1551ev_time (void) EV_THROW 1893ev_time (void) EV_NOEXCEPT
1552{ 1894{
1553#if EV_USE_REALTIME 1895#if EV_USE_REALTIME
1554 if (expect_true (have_realtime)) 1896 if (expect_true (have_realtime))
1555 { 1897 {
1556 struct timespec ts; 1898 struct timespec ts;
… …
1580 return ev_time (); 1922 return ev_time ();
1581} 1923}
1582 1924
1583#if EV_MULTIPLICITY 1925#if EV_MULTIPLICITY
1584ev_tstamp 1926ev_tstamp
1585ev_now (EV_P) EV_THROW 1927ev_now (EV_P) EV_NOEXCEPT
1586{ 1928{
1587 return ev_rt_now; 1929 return ev_rt_now;
1588} 1930}
1589#endif 1931#endif
1590 1932
1591void 1933void
1592ev_sleep (ev_tstamp delay) EV_THROW 1934ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1593{ 1935{
1594 if (delay > 0.) 1936 if (delay > 0.)
1595 { 1937 {
1596#if EV_USE_NANOSLEEP 1938#if EV_USE_NANOSLEEP
1597 struct timespec ts; 1939 struct timespec ts;
1598 1940
1599 EV_TS_SET (ts, delay); 1941 EV_TS_SET (ts, delay);
1600 nanosleep (&ts, 0); 1942 nanosleep (&ts, 0);
1601#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) */
1602 Sleep ((unsigned long)(delay * 1e3)); 1946 Sleep ((unsigned long)(delay * 1e3));
1603#else 1947#else
1604 struct timeval tv; 1948 struct timeval tv;
1605 1949
1606 /* 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 */
… …
1637 } 1981 }
1638 1982
1639 return ncur; 1983 return ncur;
1640} 1984}
1641 1985
1642static void * noinline ecb_cold 1986noinline ecb_cold
1987static void *
1643array_realloc (int elem, void *base, int *cur, int cnt) 1988array_realloc (int elem, void *base, int *cur, int cnt)
1644{ 1989{
1645 *cur = array_nextsize (elem, *cur, cnt); 1990 *cur = array_nextsize (elem, *cur, cnt);
1646 return ev_realloc (base, elem * *cur); 1991 return ev_realloc (base, elem * *cur);
1647} 1992}
1648 1993
1994#define array_needsize_noinit(base,count)
1995
1649#define array_init_zero(base,count) \ 1996#define array_needsize_zerofill(base,count) \
1650 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1997 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1651 1998
1652#define array_needsize(type,base,cur,cnt,init) \ 1999#define array_needsize(type,base,cur,cnt,init) \
1653 if (expect_false ((cnt) > (cur))) \ 2000 if (expect_false ((cnt) > (cur))) \
1654 { \ 2001 { \
1655 int ecb_unused ocur_ = (cur); \ 2002 ecb_unused int ocur_ = (cur); \
1656 (base) = (type *)array_realloc \ 2003 (base) = (type *)array_realloc \
1657 (sizeof (type), (base), &(cur), (cnt)); \ 2004 (sizeof (type), (base), &(cur), (cnt)); \
1658 init ((base) + (ocur_), (cur) - ocur_); \ 2005 init ((base) + (ocur_), (cur) - ocur_); \
1659 } 2006 }
1660 2007
… …
1672 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
1673 2020
1674/*****************************************************************************/ 2021/*****************************************************************************/
1675 2022
1676/* dummy callback for pending events */ 2023/* dummy callback for pending events */
1677static void noinline 2024noinline
2025static void
1678pendingcb (EV_P_ ev_prepare *w, int revents) 2026pendingcb (EV_P_ ev_prepare *w, int revents)
1679{ 2027{
1680} 2028}
1681 2029
1682void noinline 2030noinline
2031void
1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2032ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1684{ 2033{
1685 W w_ = (W)w; 2034 W w_ = (W)w;
1686 int pri = ABSPRI (w_); 2035 int pri = ABSPRI (w_);
1687 2036
1688 if (expect_false (w_->pending)) 2037 if (expect_false (w_->pending))
1689 pendings [pri][w_->pending - 1].events |= revents; 2038 pendings [pri][w_->pending - 1].events |= revents;
1690 else 2039 else
1691 { 2040 {
1692 w_->pending = ++pendingcnt [pri]; 2041 w_->pending = ++pendingcnt [pri];
1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2042 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1694 pendings [pri][w_->pending - 1].w = w_; 2043 pendings [pri][w_->pending - 1].w = w_;
1695 pendings [pri][w_->pending - 1].events = revents; 2044 pendings [pri][w_->pending - 1].events = revents;
1696 } 2045 }
1697 2046
1698 pendingpri = NUMPRI - 1; 2047 pendingpri = NUMPRI - 1;
1699} 2048}
1700 2049
1701inline_speed void 2050inline_speed void
1702feed_reverse (EV_P_ W w) 2051feed_reverse (EV_P_ W w)
1703{ 2052{
1704 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2053 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1705 rfeeds [rfeedcnt++] = w; 2054 rfeeds [rfeedcnt++] = w;
1706} 2055}
1707 2056
1708inline_size void 2057inline_size void
1709feed_reverse_done (EV_P_ int revents) 2058feed_reverse_done (EV_P_ int revents)
… …
1749 if (expect_true (!anfd->reify)) 2098 if (expect_true (!anfd->reify))
1750 fd_event_nocheck (EV_A_ fd, revents); 2099 fd_event_nocheck (EV_A_ fd, revents);
1751} 2100}
1752 2101
1753void 2102void
1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2103ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1755{ 2104{
1756 if (fd >= 0 && fd < anfdmax) 2105 if (fd >= 0 && fd < anfdmax)
1757 fd_event_nocheck (EV_A_ fd, revents); 2106 fd_event_nocheck (EV_A_ fd, revents);
1758} 2107}
1759 2108
… …
1817 2166
1818 fdchangecnt = 0; 2167 fdchangecnt = 0;
1819} 2168}
1820 2169
1821/* something about the given fd changed */ 2170/* something about the given fd changed */
1822inline_size void 2171inline_size
2172void
1823fd_change (EV_P_ int fd, int flags) 2173fd_change (EV_P_ int fd, int flags)
1824{ 2174{
1825 unsigned char reify = anfds [fd].reify; 2175 unsigned char reify = anfds [fd].reify;
1826 anfds [fd].reify |= flags; 2176 anfds [fd].reify |= flags;
1827 2177
1828 if (expect_true (!reify)) 2178 if (expect_true (!reify))
1829 { 2179 {
1830 ++fdchangecnt; 2180 ++fdchangecnt;
1831 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2181 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1832 fdchanges [fdchangecnt - 1] = fd; 2182 fdchanges [fdchangecnt - 1] = fd;
1833 } 2183 }
1834} 2184}
1835 2185
1836/* 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 */
1837inline_speed void ecb_cold 2187inline_speed ecb_cold void
1838fd_kill (EV_P_ int fd) 2188fd_kill (EV_P_ int fd)
1839{ 2189{
1840 ev_io *w; 2190 ev_io *w;
1841 2191
1842 while ((w = (ev_io *)anfds [fd].head)) 2192 while ((w = (ev_io *)anfds [fd].head))
… …
1845 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);
1846 } 2196 }
1847} 2197}
1848 2198
1849/* check whether the given fd is actually valid, for error recovery */ 2199/* check whether the given fd is actually valid, for error recovery */
1850inline_size int ecb_cold 2200inline_size ecb_cold int
1851fd_valid (int fd) 2201fd_valid (int fd)
1852{ 2202{
1853#ifdef _WIN32 2203#ifdef _WIN32
1854 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2204 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1855#else 2205#else
1856 return fcntl (fd, F_GETFD) != -1; 2206 return fcntl (fd, F_GETFD) != -1;
1857#endif 2207#endif
1858} 2208}
1859 2209
1860/* called on EBADF to verify fds */ 2210/* called on EBADF to verify fds */
1861static void noinline ecb_cold 2211noinline ecb_cold
2212static void
1862fd_ebadf (EV_P) 2213fd_ebadf (EV_P)
1863{ 2214{
1864 int fd; 2215 int fd;
1865 2216
1866 for (fd = 0; fd < anfdmax; ++fd) 2217 for (fd = 0; fd < anfdmax; ++fd)
… …
1868 if (!fd_valid (fd) && errno == EBADF) 2219 if (!fd_valid (fd) && errno == EBADF)
1869 fd_kill (EV_A_ fd); 2220 fd_kill (EV_A_ fd);
1870} 2221}
1871 2222
1872/* 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 */
1873static void noinline ecb_cold 2224noinline ecb_cold
2225static void
1874fd_enomem (EV_P) 2226fd_enomem (EV_P)
1875{ 2227{
1876 int fd; 2228 int fd;
1877 2229
1878 for (fd = anfdmax; fd--; ) 2230 for (fd = anfdmax; fd--; )
… …
1882 break; 2234 break;
1883 } 2235 }
1884} 2236}
1885 2237
1886/* 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 */
1887static void noinline 2239noinline
2240static void
1888fd_rearm_all (EV_P) 2241fd_rearm_all (EV_P)
1889{ 2242{
1890 int fd; 2243 int fd;
1891 2244
1892 for (fd = 0; fd < anfdmax; ++fd) 2245 for (fd = 0; fd < anfdmax; ++fd)
… …
2073 2426
2074/*****************************************************************************/ 2427/*****************************************************************************/
2075 2428
2076#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2429#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2077 2430
2078static void noinline ecb_cold 2431noinline ecb_cold
2432static void
2079evpipe_init (EV_P) 2433evpipe_init (EV_P)
2080{ 2434{
2081 if (!ev_is_active (&pipe_w)) 2435 if (!ev_is_active (&pipe_w))
2082 { 2436 {
2083 int fds [2]; 2437 int fds [2];
… …
2094 while (pipe (fds)) 2448 while (pipe (fds))
2095 ev_syserr ("(libev) error creating signal/async pipe"); 2449 ev_syserr ("(libev) error creating signal/async pipe");
2096 2450
2097 fd_intern (fds [0]); 2451 fd_intern (fds [0]);
2098 } 2452 }
2099
2100 fd_intern (fds [1]);
2101 2453
2102 evpipe [0] = fds [0]; 2454 evpipe [0] = fds [0];
2103 2455
2104 if (evpipe [1] < 0) 2456 if (evpipe [1] < 0)
2105 evpipe [1] = fds [1]; /* first call, set write fd */ 2457 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2112 2464
2113 dup2 (fds [1], evpipe [1]); 2465 dup2 (fds [1], evpipe [1]);
2114 close (fds [1]); 2466 close (fds [1]);
2115 } 2467 }
2116 2468
2469 fd_intern (evpipe [1]);
2470
2117 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);
2118 ev_io_start (EV_A_ &pipe_w); 2472 ev_io_start (EV_A_ &pipe_w);
2119 ev_unref (EV_A); /* watcher should not keep loop alive */ 2473 ev_unref (EV_A); /* watcher should not keep loop alive */
2120 } 2474 }
2121} 2475}
… …
2154#endif 2508#endif
2155 { 2509 {
2156#ifdef _WIN32 2510#ifdef _WIN32
2157 WSABUF buf; 2511 WSABUF buf;
2158 DWORD sent; 2512 DWORD sent;
2159 buf.buf = &buf; 2513 buf.buf = (char *)&buf;
2160 buf.len = 1; 2514 buf.len = 1;
2161 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);
2162#else 2516#else
2163 write (evpipe [1], &(evpipe [1]), 1); 2517 write (evpipe [1], &(evpipe [1]), 1);
2164#endif 2518#endif
… …
2236} 2590}
2237 2591
2238/*****************************************************************************/ 2592/*****************************************************************************/
2239 2593
2240void 2594void
2241ev_feed_signal (int signum) EV_THROW 2595ev_feed_signal (int signum) EV_NOEXCEPT
2242{ 2596{
2243#if EV_MULTIPLICITY 2597#if EV_MULTIPLICITY
2598 EV_P;
2244 ECB_MEMORY_FENCE_ACQUIRE; 2599 ECB_MEMORY_FENCE_ACQUIRE;
2245 EV_P = signals [signum - 1].loop; 2600 EV_A = signals [signum - 1].loop;
2246 2601
2247 if (!EV_A) 2602 if (!EV_A)
2248 return; 2603 return;
2249#endif 2604#endif
2250 2605
… …
2260#endif 2615#endif
2261 2616
2262 ev_feed_signal (signum); 2617 ev_feed_signal (signum);
2263} 2618}
2264 2619
2265void noinline 2620noinline
2621void
2266ev_feed_signal_event (EV_P_ int signum) EV_THROW 2622ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2267{ 2623{
2268 WL w; 2624 WL w;
2269 2625
2270 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2626 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2271 return; 2627 return;
… …
2377# include "ev_port.c" 2733# include "ev_port.c"
2378#endif 2734#endif
2379#if EV_USE_KQUEUE 2735#if EV_USE_KQUEUE
2380# include "ev_kqueue.c" 2736# include "ev_kqueue.c"
2381#endif 2737#endif
2738#if EV_USE_LINUXAIO
2739# include "ev_linuxaio.c"
2740#endif
2382#if EV_USE_EPOLL 2741#if EV_USE_EPOLL
2383# include "ev_epoll.c" 2742# include "ev_epoll.c"
2384#endif 2743#endif
2385#if EV_USE_POLL 2744#if EV_USE_POLL
2386# include "ev_poll.c" 2745# include "ev_poll.c"
2387#endif 2746#endif
2388#if EV_USE_SELECT 2747#if EV_USE_SELECT
2389# include "ev_select.c" 2748# include "ev_select.c"
2390#endif 2749#endif
2391 2750
2392int ecb_cold 2751ecb_cold int
2393ev_version_major (void) EV_THROW 2752ev_version_major (void) EV_NOEXCEPT
2394{ 2753{
2395 return EV_VERSION_MAJOR; 2754 return EV_VERSION_MAJOR;
2396} 2755}
2397 2756
2398int ecb_cold 2757ecb_cold int
2399ev_version_minor (void) EV_THROW 2758ev_version_minor (void) EV_NOEXCEPT
2400{ 2759{
2401 return EV_VERSION_MINOR; 2760 return EV_VERSION_MINOR;
2402} 2761}
2403 2762
2404/* 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 */
2405int inline_size ecb_cold 2764inline_size ecb_cold int
2406enable_secure (void) 2765enable_secure (void)
2407{ 2766{
2408#ifdef _WIN32 2767#ifdef _WIN32
2409 return 0; 2768 return 0;
2410#else 2769#else
2411 return getuid () != geteuid () 2770 return getuid () != geteuid ()
2412 || getgid () != getegid (); 2771 || getgid () != getegid ();
2413#endif 2772#endif
2414} 2773}
2415 2774
2416unsigned int ecb_cold 2775ecb_cold
2776unsigned int
2417ev_supported_backends (void) EV_THROW 2777ev_supported_backends (void) EV_NOEXCEPT
2418{ 2778{
2419 unsigned int flags = 0; 2779 unsigned int flags = 0;
2420 2780
2421 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2781 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2422 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2782 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2423 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2783 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2784 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2424 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2785 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2425 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2786 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2426 2787
2427 return flags; 2788 return flags;
2428} 2789}
2429 2790
2430unsigned int ecb_cold 2791ecb_cold
2792unsigned int
2431ev_recommended_backends (void) EV_THROW 2793ev_recommended_backends (void) EV_NOEXCEPT
2432{ 2794{
2433 unsigned int flags = ev_supported_backends (); 2795 unsigned int flags = ev_supported_backends ();
2434 2796
2435#ifndef __NetBSD__ 2797#ifndef __NetBSD__
2436 /* kqueue is borked on everything but netbsd apparently */ 2798 /* kqueue is borked on everything but netbsd apparently */
… …
2444#endif 2806#endif
2445#ifdef __FreeBSD__ 2807#ifdef __FreeBSD__
2446 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) */
2447#endif 2809#endif
2448 2810
2811 /* TODO: linuxaio is very experimental */
2812 flags &= ~EVBACKEND_LINUXAIO;
2813
2449 return flags; 2814 return flags;
2450} 2815}
2451 2816
2452unsigned int ecb_cold 2817ecb_cold
2818unsigned int
2453ev_embeddable_backends (void) EV_THROW 2819ev_embeddable_backends (void) EV_NOEXCEPT
2454{ 2820{
2455 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2821 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2456 2822
2457 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2823 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2458 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2824 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2460 2826
2461 return flags; 2827 return flags;
2462} 2828}
2463 2829
2464unsigned int 2830unsigned int
2465ev_backend (EV_P) EV_THROW 2831ev_backend (EV_P) EV_NOEXCEPT
2466{ 2832{
2467 return backend; 2833 return backend;
2468} 2834}
2469 2835
2470#if EV_FEATURE_API 2836#if EV_FEATURE_API
2471unsigned int 2837unsigned int
2472ev_iteration (EV_P) EV_THROW 2838ev_iteration (EV_P) EV_NOEXCEPT
2473{ 2839{
2474 return loop_count; 2840 return loop_count;
2475} 2841}
2476 2842
2477unsigned int 2843unsigned int
2478ev_depth (EV_P) EV_THROW 2844ev_depth (EV_P) EV_NOEXCEPT
2479{ 2845{
2480 return loop_depth; 2846 return loop_depth;
2481} 2847}
2482 2848
2483void 2849void
2484ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2850ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2485{ 2851{
2486 io_blocktime = interval; 2852 io_blocktime = interval;
2487} 2853}
2488 2854
2489void 2855void
2490ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2856ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2491{ 2857{
2492 timeout_blocktime = interval; 2858 timeout_blocktime = interval;
2493} 2859}
2494 2860
2495void 2861void
2496ev_set_userdata (EV_P_ void *data) EV_THROW 2862ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2497{ 2863{
2498 userdata = data; 2864 userdata = data;
2499} 2865}
2500 2866
2501void * 2867void *
2502ev_userdata (EV_P) EV_THROW 2868ev_userdata (EV_P) EV_NOEXCEPT
2503{ 2869{
2504 return userdata; 2870 return userdata;
2505} 2871}
2506 2872
2507void 2873void
2508ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2874ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2509{ 2875{
2510 invoke_cb = invoke_pending_cb; 2876 invoke_cb = invoke_pending_cb;
2511} 2877}
2512 2878
2513void 2879void
2514ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2880ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2515{ 2881{
2516 release_cb = release; 2882 release_cb = release;
2517 acquire_cb = acquire; 2883 acquire_cb = acquire;
2518} 2884}
2519#endif 2885#endif
2520 2886
2521/* initialise a loop structure, must be zero-initialised */ 2887/* initialise a loop structure, must be zero-initialised */
2522static void noinline ecb_cold 2888noinline ecb_cold
2889static void
2523loop_init (EV_P_ unsigned int flags) EV_THROW 2890loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2524{ 2891{
2525 if (!backend) 2892 if (!backend)
2526 { 2893 {
2527 origflags = flags; 2894 origflags = flags;
2528 2895
… …
2586 2953
2587 if (!(flags & EVBACKEND_MASK)) 2954 if (!(flags & EVBACKEND_MASK))
2588 flags |= ev_recommended_backends (); 2955 flags |= ev_recommended_backends ();
2589 2956
2590#if EV_USE_IOCP 2957#if EV_USE_IOCP
2591 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2958 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2592#endif 2959#endif
2593#if EV_USE_PORT 2960#if EV_USE_PORT
2594 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2961 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2595#endif 2962#endif
2596#if EV_USE_KQUEUE 2963#if EV_USE_KQUEUE
2597 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2964 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2965#endif
2966#if EV_USE_LINUXAIO
2967 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2598#endif 2968#endif
2599#if EV_USE_EPOLL 2969#if EV_USE_EPOLL
2600 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2970 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2601#endif 2971#endif
2602#if EV_USE_POLL 2972#if EV_USE_POLL
2603 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2973 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2604#endif 2974#endif
2605#if EV_USE_SELECT 2975#if EV_USE_SELECT
2606 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2976 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2607#endif 2977#endif
2608 2978
2609 ev_prepare_init (&pending_w, pendingcb); 2979 ev_prepare_init (&pending_w, pendingcb);
2610 2980
2611#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2981#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2614#endif 2984#endif
2615 } 2985 }
2616} 2986}
2617 2987
2618/* free up a loop structure */ 2988/* free up a loop structure */
2619void ecb_cold 2989ecb_cold
2990void
2620ev_loop_destroy (EV_P) 2991ev_loop_destroy (EV_P)
2621{ 2992{
2622 int i; 2993 int i;
2623 2994
2624#if EV_MULTIPLICITY 2995#if EV_MULTIPLICITY
… …
2665 3036
2666 if (backend_fd >= 0) 3037 if (backend_fd >= 0)
2667 close (backend_fd); 3038 close (backend_fd);
2668 3039
2669#if EV_USE_IOCP 3040#if EV_USE_IOCP
2670 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3041 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2671#endif 3042#endif
2672#if EV_USE_PORT 3043#if EV_USE_PORT
2673 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3044 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2674#endif 3045#endif
2675#if EV_USE_KQUEUE 3046#if EV_USE_KQUEUE
2676 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3047 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3048#endif
3049#if EV_USE_LINUXAIO
3050 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2677#endif 3051#endif
2678#if EV_USE_EPOLL 3052#if EV_USE_EPOLL
2679 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3053 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2680#endif 3054#endif
2681#if EV_USE_POLL 3055#if EV_USE_POLL
2682 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3056 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2683#endif 3057#endif
2684#if EV_USE_SELECT 3058#if EV_USE_SELECT
2685 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3059 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2686#endif 3060#endif
2687 3061
2688 for (i = NUMPRI; i--; ) 3062 for (i = NUMPRI; i--; )
2689 { 3063 {
2690 array_free (pending, [i]); 3064 array_free (pending, [i]);
… …
2732 3106
2733inline_size void 3107inline_size void
2734loop_fork (EV_P) 3108loop_fork (EV_P)
2735{ 3109{
2736#if EV_USE_PORT 3110#if EV_USE_PORT
2737 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3111 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2738#endif 3112#endif
2739#if EV_USE_KQUEUE 3113#if EV_USE_KQUEUE
2740 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3114 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3115#endif
3116#if EV_USE_LINUXAIO
3117 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2741#endif 3118#endif
2742#if EV_USE_EPOLL 3119#if EV_USE_EPOLL
2743 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3120 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2744#endif 3121#endif
2745#if EV_USE_INOTIFY 3122#if EV_USE_INOTIFY
2746 infy_fork (EV_A); 3123 infy_fork (EV_A);
2747#endif 3124#endif
2748 3125
2749#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3126#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2750 if (ev_is_active (&pipe_w)) 3127 if (ev_is_active (&pipe_w) && postfork != 2)
2751 { 3128 {
2752 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3129 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2753 3130
2754 ev_ref (EV_A); 3131 ev_ref (EV_A);
2755 ev_io_stop (EV_A_ &pipe_w); 3132 ev_io_stop (EV_A_ &pipe_w);
… …
2766 postfork = 0; 3143 postfork = 0;
2767} 3144}
2768 3145
2769#if EV_MULTIPLICITY 3146#if EV_MULTIPLICITY
2770 3147
3148ecb_cold
2771struct ev_loop * ecb_cold 3149struct ev_loop *
2772ev_loop_new (unsigned int flags) EV_THROW 3150ev_loop_new (unsigned int flags) EV_NOEXCEPT
2773{ 3151{
2774 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3152 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2775 3153
2776 memset (EV_A, 0, sizeof (struct ev_loop)); 3154 memset (EV_A, 0, sizeof (struct ev_loop));
2777 loop_init (EV_A_ flags); 3155 loop_init (EV_A_ flags);
… …
2784} 3162}
2785 3163
2786#endif /* multiplicity */ 3164#endif /* multiplicity */
2787 3165
2788#if EV_VERIFY 3166#if EV_VERIFY
2789static void noinline ecb_cold 3167noinline ecb_cold
3168static void
2790verify_watcher (EV_P_ W w) 3169verify_watcher (EV_P_ W w)
2791{ 3170{
2792 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3171 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2793 3172
2794 if (w->pending) 3173 if (w->pending)
2795 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3174 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2796} 3175}
2797 3176
2798static void noinline ecb_cold 3177noinline ecb_cold
3178static void
2799verify_heap (EV_P_ ANHE *heap, int N) 3179verify_heap (EV_P_ ANHE *heap, int N)
2800{ 3180{
2801 int i; 3181 int i;
2802 3182
2803 for (i = HEAP0; i < N + HEAP0; ++i) 3183 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2808 3188
2809 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3189 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2810 } 3190 }
2811} 3191}
2812 3192
2813static void noinline ecb_cold 3193noinline ecb_cold
3194static void
2814array_verify (EV_P_ W *ws, int cnt) 3195array_verify (EV_P_ W *ws, int cnt)
2815{ 3196{
2816 while (cnt--) 3197 while (cnt--)
2817 { 3198 {
2818 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3199 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2821} 3202}
2822#endif 3203#endif
2823 3204
2824#if EV_FEATURE_API 3205#if EV_FEATURE_API
2825void ecb_cold 3206void ecb_cold
2826ev_verify (EV_P) EV_THROW 3207ev_verify (EV_P) EV_NOEXCEPT
2827{ 3208{
2828#if EV_VERIFY 3209#if EV_VERIFY
2829 int i; 3210 int i;
2830 WL w, w2; 3211 WL w, w2;
2831 3212
… …
2907#endif 3288#endif
2908} 3289}
2909#endif 3290#endif
2910 3291
2911#if EV_MULTIPLICITY 3292#if EV_MULTIPLICITY
3293ecb_cold
2912struct ev_loop * ecb_cold 3294struct ev_loop *
2913#else 3295#else
2914int 3296int
2915#endif 3297#endif
2916ev_default_loop (unsigned int flags) EV_THROW 3298ev_default_loop (unsigned int flags) EV_NOEXCEPT
2917{ 3299{
2918 if (!ev_default_loop_ptr) 3300 if (!ev_default_loop_ptr)
2919 { 3301 {
2920#if EV_MULTIPLICITY 3302#if EV_MULTIPLICITY
2921 EV_P = ev_default_loop_ptr = &default_loop_struct; 3303 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2940 3322
2941 return ev_default_loop_ptr; 3323 return ev_default_loop_ptr;
2942} 3324}
2943 3325
2944void 3326void
2945ev_loop_fork (EV_P) EV_THROW 3327ev_loop_fork (EV_P) EV_NOEXCEPT
2946{ 3328{
2947 postfork = 1; 3329 postfork = 1;
2948} 3330}
2949 3331
2950/*****************************************************************************/ 3332/*****************************************************************************/
… …
2954{ 3336{
2955 EV_CB_INVOKE ((W)w, revents); 3337 EV_CB_INVOKE ((W)w, revents);
2956} 3338}
2957 3339
2958unsigned int 3340unsigned int
2959ev_pending_count (EV_P) EV_THROW 3341ev_pending_count (EV_P) EV_NOEXCEPT
2960{ 3342{
2961 int pri; 3343 int pri;
2962 unsigned int count = 0; 3344 unsigned int count = 0;
2963 3345
2964 for (pri = NUMPRI; pri--; ) 3346 for (pri = NUMPRI; pri--; )
2965 count += pendingcnt [pri]; 3347 count += pendingcnt [pri];
2966 3348
2967 return count; 3349 return count;
2968} 3350}
2969 3351
2970void noinline 3352noinline
3353void
2971ev_invoke_pending (EV_P) 3354ev_invoke_pending (EV_P)
2972{ 3355{
2973 pendingpri = NUMPRI; 3356 pendingpri = NUMPRI;
2974 3357
2975 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3358 do
2976 { 3359 {
2977 --pendingpri; 3360 --pendingpri;
2978 3361
3362 /* pendingpri possibly gets modified in the inner loop */
2979 while (pendingcnt [pendingpri]) 3363 while (pendingcnt [pendingpri])
2980 { 3364 {
2981 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3365 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2982 3366
2983 p->w->pending = 0; 3367 p->w->pending = 0;
2984 EV_CB_INVOKE (p->w, p->events); 3368 EV_CB_INVOKE (p->w, p->events);
2985 EV_FREQUENT_CHECK; 3369 EV_FREQUENT_CHECK;
2986 } 3370 }
2987 } 3371 }
3372 while (pendingpri);
2988} 3373}
2989 3374
2990#if EV_IDLE_ENABLE 3375#if EV_IDLE_ENABLE
2991/* make idle watchers pending. this handles the "call-idle */ 3376/* make idle watchers pending. this handles the "call-idle */
2992/* only when higher priorities are idle" logic */ 3377/* only when higher priorities are idle" logic */
… …
3050 } 3435 }
3051} 3436}
3052 3437
3053#if EV_PERIODIC_ENABLE 3438#if EV_PERIODIC_ENABLE
3054 3439
3055static void noinline 3440noinline
3441static void
3056periodic_recalc (EV_P_ ev_periodic *w) 3442periodic_recalc (EV_P_ ev_periodic *w)
3057{ 3443{
3058 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3444 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3059 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3445 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3060 3446
… …
3118 } 3504 }
3119} 3505}
3120 3506
3121/* simply recalculate all periodics */ 3507/* simply recalculate all periodics */
3122/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3508/* TODO: maybe ensure that at least one event happens when jumping forward? */
3123static void noinline ecb_cold 3509noinline ecb_cold
3510static void
3124periodics_reschedule (EV_P) 3511periodics_reschedule (EV_P)
3125{ 3512{
3126 int i; 3513 int i;
3127 3514
3128 /* adjust periodics after time jump */ 3515 /* adjust periodics after time jump */
… …
3141 reheap (periodics, periodiccnt); 3528 reheap (periodics, periodiccnt);
3142} 3529}
3143#endif 3530#endif
3144 3531
3145/* adjust all timers by a given offset */ 3532/* adjust all timers by a given offset */
3146static void noinline ecb_cold 3533noinline ecb_cold
3534static void
3147timers_reschedule (EV_P_ ev_tstamp adjust) 3535timers_reschedule (EV_P_ ev_tstamp adjust)
3148{ 3536{
3149 int i; 3537 int i;
3150 3538
3151 for (i = 0; i < timercnt; ++i) 3539 for (i = 0; i < timercnt; ++i)
… …
3398 3786
3399 return activecnt; 3787 return activecnt;
3400} 3788}
3401 3789
3402void 3790void
3403ev_break (EV_P_ int how) EV_THROW 3791ev_break (EV_P_ int how) EV_NOEXCEPT
3404{ 3792{
3405 loop_done = how; 3793 loop_done = how;
3406} 3794}
3407 3795
3408void 3796void
3409ev_ref (EV_P) EV_THROW 3797ev_ref (EV_P) EV_NOEXCEPT
3410{ 3798{
3411 ++activecnt; 3799 ++activecnt;
3412} 3800}
3413 3801
3414void 3802void
3415ev_unref (EV_P) EV_THROW 3803ev_unref (EV_P) EV_NOEXCEPT
3416{ 3804{
3417 --activecnt; 3805 --activecnt;
3418} 3806}
3419 3807
3420void 3808void
3421ev_now_update (EV_P) EV_THROW 3809ev_now_update (EV_P) EV_NOEXCEPT
3422{ 3810{
3423 time_update (EV_A_ 1e100); 3811 time_update (EV_A_ 1e100);
3424} 3812}
3425 3813
3426void 3814void
3427ev_suspend (EV_P) EV_THROW 3815ev_suspend (EV_P) EV_NOEXCEPT
3428{ 3816{
3429 ev_now_update (EV_A); 3817 ev_now_update (EV_A);
3430} 3818}
3431 3819
3432void 3820void
3433ev_resume (EV_P) EV_THROW 3821ev_resume (EV_P) EV_NOEXCEPT
3434{ 3822{
3435 ev_tstamp mn_prev = mn_now; 3823 ev_tstamp mn_prev = mn_now;
3436 3824
3437 ev_now_update (EV_A); 3825 ev_now_update (EV_A);
3438 timers_reschedule (EV_A_ mn_now - mn_prev); 3826 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3477 w->pending = 0; 3865 w->pending = 0;
3478 } 3866 }
3479} 3867}
3480 3868
3481int 3869int
3482ev_clear_pending (EV_P_ void *w) EV_THROW 3870ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3483{ 3871{
3484 W w_ = (W)w; 3872 W w_ = (W)w;
3485 int pending = w_->pending; 3873 int pending = w_->pending;
3486 3874
3487 if (expect_true (pending)) 3875 if (expect_true (pending))
… …
3519 w->active = 0; 3907 w->active = 0;
3520} 3908}
3521 3909
3522/*****************************************************************************/ 3910/*****************************************************************************/
3523 3911
3524void noinline 3912noinline
3913void
3525ev_io_start (EV_P_ ev_io *w) EV_THROW 3914ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3526{ 3915{
3527 int fd = w->fd; 3916 int fd = w->fd;
3528 3917
3529 if (expect_false (ev_is_active (w))) 3918 if (expect_false (ev_is_active (w)))
3530 return; 3919 return;
… …
3533 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3922 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3534 3923
3535 EV_FREQUENT_CHECK; 3924 EV_FREQUENT_CHECK;
3536 3925
3537 ev_start (EV_A_ (W)w, 1); 3926 ev_start (EV_A_ (W)w, 1);
3538 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3927 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3539 wlist_add (&anfds[fd].head, (WL)w); 3928 wlist_add (&anfds[fd].head, (WL)w);
3540 3929
3541 /* common bug, apparently */ 3930 /* common bug, apparently */
3542 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3931 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3543 3932
… …
3545 w->events &= ~EV__IOFDSET; 3934 w->events &= ~EV__IOFDSET;
3546 3935
3547 EV_FREQUENT_CHECK; 3936 EV_FREQUENT_CHECK;
3548} 3937}
3549 3938
3550void noinline 3939noinline
3940void
3551ev_io_stop (EV_P_ ev_io *w) EV_THROW 3941ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3552{ 3942{
3553 clear_pending (EV_A_ (W)w); 3943 clear_pending (EV_A_ (W)w);
3554 if (expect_false (!ev_is_active (w))) 3944 if (expect_false (!ev_is_active (w)))
3555 return; 3945 return;
3556 3946
… …
3564 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3954 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3565 3955
3566 EV_FREQUENT_CHECK; 3956 EV_FREQUENT_CHECK;
3567} 3957}
3568 3958
3569void noinline 3959noinline
3960void
3570ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3961ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3571{ 3962{
3572 if (expect_false (ev_is_active (w))) 3963 if (expect_false (ev_is_active (w)))
3573 return; 3964 return;
3574 3965
3575 ev_at (w) += mn_now; 3966 ev_at (w) += mn_now;
… …
3578 3969
3579 EV_FREQUENT_CHECK; 3970 EV_FREQUENT_CHECK;
3580 3971
3581 ++timercnt; 3972 ++timercnt;
3582 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3973 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3583 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3974 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3584 ANHE_w (timers [ev_active (w)]) = (WT)w; 3975 ANHE_w (timers [ev_active (w)]) = (WT)w;
3585 ANHE_at_cache (timers [ev_active (w)]); 3976 ANHE_at_cache (timers [ev_active (w)]);
3586 upheap (timers, ev_active (w)); 3977 upheap (timers, ev_active (w));
3587 3978
3588 EV_FREQUENT_CHECK; 3979 EV_FREQUENT_CHECK;
3589 3980
3590 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3981 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3591} 3982}
3592 3983
3593void noinline 3984noinline
3985void
3594ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3986ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3595{ 3987{
3596 clear_pending (EV_A_ (W)w); 3988 clear_pending (EV_A_ (W)w);
3597 if (expect_false (!ev_is_active (w))) 3989 if (expect_false (!ev_is_active (w)))
3598 return; 3990 return;
3599 3991
… …
3618 ev_stop (EV_A_ (W)w); 4010 ev_stop (EV_A_ (W)w);
3619 4011
3620 EV_FREQUENT_CHECK; 4012 EV_FREQUENT_CHECK;
3621} 4013}
3622 4014
3623void noinline 4015noinline
4016void
3624ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4017ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3625{ 4018{
3626 EV_FREQUENT_CHECK; 4019 EV_FREQUENT_CHECK;
3627 4020
3628 clear_pending (EV_A_ (W)w); 4021 clear_pending (EV_A_ (W)w);
3629 4022
… …
3646 4039
3647 EV_FREQUENT_CHECK; 4040 EV_FREQUENT_CHECK;
3648} 4041}
3649 4042
3650ev_tstamp 4043ev_tstamp
3651ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4044ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3652{ 4045{
3653 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4046 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3654} 4047}
3655 4048
3656#if EV_PERIODIC_ENABLE 4049#if EV_PERIODIC_ENABLE
3657void noinline 4050noinline
4051void
3658ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4052ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3659{ 4053{
3660 if (expect_false (ev_is_active (w))) 4054 if (expect_false (ev_is_active (w)))
3661 return; 4055 return;
3662 4056
3663 if (w->reschedule_cb) 4057 if (w->reschedule_cb)
… …
3672 4066
3673 EV_FREQUENT_CHECK; 4067 EV_FREQUENT_CHECK;
3674 4068
3675 ++periodiccnt; 4069 ++periodiccnt;
3676 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4070 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3677 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4071 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3678 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4072 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3679 ANHE_at_cache (periodics [ev_active (w)]); 4073 ANHE_at_cache (periodics [ev_active (w)]);
3680 upheap (periodics, ev_active (w)); 4074 upheap (periodics, ev_active (w));
3681 4075
3682 EV_FREQUENT_CHECK; 4076 EV_FREQUENT_CHECK;
3683 4077
3684 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4078 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3685} 4079}
3686 4080
3687void noinline 4081noinline
4082void
3688ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4083ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3689{ 4084{
3690 clear_pending (EV_A_ (W)w); 4085 clear_pending (EV_A_ (W)w);
3691 if (expect_false (!ev_is_active (w))) 4086 if (expect_false (!ev_is_active (w)))
3692 return; 4087 return;
3693 4088
… …
3710 ev_stop (EV_A_ (W)w); 4105 ev_stop (EV_A_ (W)w);
3711 4106
3712 EV_FREQUENT_CHECK; 4107 EV_FREQUENT_CHECK;
3713} 4108}
3714 4109
3715void noinline 4110noinline
4111void
3716ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4112ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3717{ 4113{
3718 /* TODO: use adjustheap and recalculation */ 4114 /* TODO: use adjustheap and recalculation */
3719 ev_periodic_stop (EV_A_ w); 4115 ev_periodic_stop (EV_A_ w);
3720 ev_periodic_start (EV_A_ w); 4116 ev_periodic_start (EV_A_ w);
3721} 4117}
… …
3725# define SA_RESTART 0 4121# define SA_RESTART 0
3726#endif 4122#endif
3727 4123
3728#if EV_SIGNAL_ENABLE 4124#if EV_SIGNAL_ENABLE
3729 4125
3730void noinline 4126noinline
4127void
3731ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4128ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3732{ 4129{
3733 if (expect_false (ev_is_active (w))) 4130 if (expect_false (ev_is_active (w)))
3734 return; 4131 return;
3735 4132
3736 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4133 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3807 } 4204 }
3808 4205
3809 EV_FREQUENT_CHECK; 4206 EV_FREQUENT_CHECK;
3810} 4207}
3811 4208
3812void noinline 4209noinline
4210void
3813ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4211ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3814{ 4212{
3815 clear_pending (EV_A_ (W)w); 4213 clear_pending (EV_A_ (W)w);
3816 if (expect_false (!ev_is_active (w))) 4214 if (expect_false (!ev_is_active (w)))
3817 return; 4215 return;
3818 4216
… …
3849#endif 4247#endif
3850 4248
3851#if EV_CHILD_ENABLE 4249#if EV_CHILD_ENABLE
3852 4250
3853void 4251void
3854ev_child_start (EV_P_ ev_child *w) EV_THROW 4252ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3855{ 4253{
3856#if EV_MULTIPLICITY 4254#if EV_MULTIPLICITY
3857 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4255 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3858#endif 4256#endif
3859 if (expect_false (ev_is_active (w))) 4257 if (expect_false (ev_is_active (w)))
… …
3866 4264
3867 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
3868} 4266}
3869 4267
3870void 4268void
3871ev_child_stop (EV_P_ ev_child *w) EV_THROW 4269ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3872{ 4270{
3873 clear_pending (EV_A_ (W)w); 4271 clear_pending (EV_A_ (W)w);
3874 if (expect_false (!ev_is_active (w))) 4272 if (expect_false (!ev_is_active (w)))
3875 return; 4273 return;
3876 4274
… …
3893 4291
3894#define DEF_STAT_INTERVAL 5.0074891 4292#define DEF_STAT_INTERVAL 5.0074891
3895#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4293#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3896#define MIN_STAT_INTERVAL 0.1074891 4294#define MIN_STAT_INTERVAL 0.1074891
3897 4295
3898static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4296noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3899 4297
3900#if EV_USE_INOTIFY 4298#if EV_USE_INOTIFY
3901 4299
3902/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4300/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3903# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4301# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3904 4302
3905static void noinline 4303noinline
4304static void
3906infy_add (EV_P_ ev_stat *w) 4305infy_add (EV_P_ ev_stat *w)
3907{ 4306{
3908 w->wd = inotify_add_watch (fs_fd, w->path, 4307 w->wd = inotify_add_watch (fs_fd, w->path,
3909 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4308 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3910 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4309 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3974 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4373 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3975 ev_timer_again (EV_A_ &w->timer); 4374 ev_timer_again (EV_A_ &w->timer);
3976 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4375 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3977} 4376}
3978 4377
3979static void noinline 4378noinline
4379static void
3980infy_del (EV_P_ ev_stat *w) 4380infy_del (EV_P_ ev_stat *w)
3981{ 4381{
3982 int slot; 4382 int slot;
3983 int wd = w->wd; 4383 int wd = w->wd;
3984 4384
… …
3991 4391
3992 /* remove this watcher, if others are watching it, they will rearm */ 4392 /* remove this watcher, if others are watching it, they will rearm */
3993 inotify_rm_watch (fs_fd, wd); 4393 inotify_rm_watch (fs_fd, wd);
3994} 4394}
3995 4395
3996static void noinline 4396noinline
4397static void
3997infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4398infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3998{ 4399{
3999 if (slot < 0) 4400 if (slot < 0)
4000 /* overflow, need to check for all hash slots */ 4401 /* overflow, need to check for all hash slots */
4001 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4402 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4037 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4438 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4038 ofs += sizeof (struct inotify_event) + ev->len; 4439 ofs += sizeof (struct inotify_event) + ev->len;
4039 } 4440 }
4040} 4441}
4041 4442
4042inline_size void ecb_cold 4443inline_size ecb_cold
4444void
4043ev_check_2625 (EV_P) 4445ev_check_2625 (EV_P)
4044{ 4446{
4045 /* kernels < 2.6.25 are borked 4447 /* kernels < 2.6.25 are borked
4046 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4448 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4047 */ 4449 */
… …
4137#else 4539#else
4138# define EV_LSTAT(p,b) lstat (p, b) 4540# define EV_LSTAT(p,b) lstat (p, b)
4139#endif 4541#endif
4140 4542
4141void 4543void
4142ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4544ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4143{ 4545{
4144 if (lstat (w->path, &w->attr) < 0) 4546 if (lstat (w->path, &w->attr) < 0)
4145 w->attr.st_nlink = 0; 4547 w->attr.st_nlink = 0;
4146 else if (!w->attr.st_nlink) 4548 else if (!w->attr.st_nlink)
4147 w->attr.st_nlink = 1; 4549 w->attr.st_nlink = 1;
4148} 4550}
4149 4551
4150static void noinline 4552noinline
4553static void
4151stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4554stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4152{ 4555{
4153 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4556 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4154 4557
4155 ev_statdata prev = w->attr; 4558 ev_statdata prev = w->attr;
… …
4186 ev_feed_event (EV_A_ w, EV_STAT); 4589 ev_feed_event (EV_A_ w, EV_STAT);
4187 } 4590 }
4188} 4591}
4189 4592
4190void 4593void
4191ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4594ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4192{ 4595{
4193 if (expect_false (ev_is_active (w))) 4596 if (expect_false (ev_is_active (w)))
4194 return; 4597 return;
4195 4598
4196 ev_stat_stat (EV_A_ w); 4599 ev_stat_stat (EV_A_ w);
… …
4217 4620
4218 EV_FREQUENT_CHECK; 4621 EV_FREQUENT_CHECK;
4219} 4622}
4220 4623
4221void 4624void
4222ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4625ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4223{ 4626{
4224 clear_pending (EV_A_ (W)w); 4627 clear_pending (EV_A_ (W)w);
4225 if (expect_false (!ev_is_active (w))) 4628 if (expect_false (!ev_is_active (w)))
4226 return; 4629 return;
4227 4630
… …
4243} 4646}
4244#endif 4647#endif
4245 4648
4246#if EV_IDLE_ENABLE 4649#if EV_IDLE_ENABLE
4247void 4650void
4248ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4651ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4249{ 4652{
4250 if (expect_false (ev_is_active (w))) 4653 if (expect_false (ev_is_active (w)))
4251 return; 4654 return;
4252 4655
4253 pri_adjust (EV_A_ (W)w); 4656 pri_adjust (EV_A_ (W)w);
… …
4258 int active = ++idlecnt [ABSPRI (w)]; 4661 int active = ++idlecnt [ABSPRI (w)];
4259 4662
4260 ++idleall; 4663 ++idleall;
4261 ev_start (EV_A_ (W)w, active); 4664 ev_start (EV_A_ (W)w, active);
4262 4665
4263 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4666 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4264 idles [ABSPRI (w)][active - 1] = w; 4667 idles [ABSPRI (w)][active - 1] = w;
4265 } 4668 }
4266 4669
4267 EV_FREQUENT_CHECK; 4670 EV_FREQUENT_CHECK;
4268} 4671}
4269 4672
4270void 4673void
4271ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4674ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4272{ 4675{
4273 clear_pending (EV_A_ (W)w); 4676 clear_pending (EV_A_ (W)w);
4274 if (expect_false (!ev_is_active (w))) 4677 if (expect_false (!ev_is_active (w)))
4275 return; 4678 return;
4276 4679
… …
4290} 4693}
4291#endif 4694#endif
4292 4695
4293#if EV_PREPARE_ENABLE 4696#if EV_PREPARE_ENABLE
4294void 4697void
4295ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4698ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4296{ 4699{
4297 if (expect_false (ev_is_active (w))) 4700 if (expect_false (ev_is_active (w)))
4298 return; 4701 return;
4299 4702
4300 EV_FREQUENT_CHECK; 4703 EV_FREQUENT_CHECK;
4301 4704
4302 ev_start (EV_A_ (W)w, ++preparecnt); 4705 ev_start (EV_A_ (W)w, ++preparecnt);
4303 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4706 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4304 prepares [preparecnt - 1] = w; 4707 prepares [preparecnt - 1] = w;
4305 4708
4306 EV_FREQUENT_CHECK; 4709 EV_FREQUENT_CHECK;
4307} 4710}
4308 4711
4309void 4712void
4310ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4713ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4311{ 4714{
4312 clear_pending (EV_A_ (W)w); 4715 clear_pending (EV_A_ (W)w);
4313 if (expect_false (!ev_is_active (w))) 4716 if (expect_false (!ev_is_active (w)))
4314 return; 4717 return;
4315 4718
… …
4328} 4731}
4329#endif 4732#endif
4330 4733
4331#if EV_CHECK_ENABLE 4734#if EV_CHECK_ENABLE
4332void 4735void
4333ev_check_start (EV_P_ ev_check *w) EV_THROW 4736ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4334{ 4737{
4335 if (expect_false (ev_is_active (w))) 4738 if (expect_false (ev_is_active (w)))
4336 return; 4739 return;
4337 4740
4338 EV_FREQUENT_CHECK; 4741 EV_FREQUENT_CHECK;
4339 4742
4340 ev_start (EV_A_ (W)w, ++checkcnt); 4743 ev_start (EV_A_ (W)w, ++checkcnt);
4341 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4744 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4342 checks [checkcnt - 1] = w; 4745 checks [checkcnt - 1] = w;
4343 4746
4344 EV_FREQUENT_CHECK; 4747 EV_FREQUENT_CHECK;
4345} 4748}
4346 4749
4347void 4750void
4348ev_check_stop (EV_P_ ev_check *w) EV_THROW 4751ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4349{ 4752{
4350 clear_pending (EV_A_ (W)w); 4753 clear_pending (EV_A_ (W)w);
4351 if (expect_false (!ev_is_active (w))) 4754 if (expect_false (!ev_is_active (w)))
4352 return; 4755 return;
4353 4756
… …
4365 EV_FREQUENT_CHECK; 4768 EV_FREQUENT_CHECK;
4366} 4769}
4367#endif 4770#endif
4368 4771
4369#if EV_EMBED_ENABLE 4772#if EV_EMBED_ENABLE
4370void noinline 4773noinline
4774void
4371ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4775ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4372{ 4776{
4373 ev_run (w->other, EVRUN_NOWAIT); 4777 ev_run (w->other, EVRUN_NOWAIT);
4374} 4778}
4375 4779
4376static void 4780static void
… …
4424 ev_idle_stop (EV_A_ idle); 4828 ev_idle_stop (EV_A_ idle);
4425} 4829}
4426#endif 4830#endif
4427 4831
4428void 4832void
4429ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4833ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4430{ 4834{
4431 if (expect_false (ev_is_active (w))) 4835 if (expect_false (ev_is_active (w)))
4432 return; 4836 return;
4433 4837
4434 { 4838 {
… …
4455 4859
4456 EV_FREQUENT_CHECK; 4860 EV_FREQUENT_CHECK;
4457} 4861}
4458 4862
4459void 4863void
4460ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4864ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4461{ 4865{
4462 clear_pending (EV_A_ (W)w); 4866 clear_pending (EV_A_ (W)w);
4463 if (expect_false (!ev_is_active (w))) 4867 if (expect_false (!ev_is_active (w)))
4464 return; 4868 return;
4465 4869
… …
4475} 4879}
4476#endif 4880#endif
4477 4881
4478#if EV_FORK_ENABLE 4882#if EV_FORK_ENABLE
4479void 4883void
4480ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4884ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4481{ 4885{
4482 if (expect_false (ev_is_active (w))) 4886 if (expect_false (ev_is_active (w)))
4483 return; 4887 return;
4484 4888
4485 EV_FREQUENT_CHECK; 4889 EV_FREQUENT_CHECK;
4486 4890
4487 ev_start (EV_A_ (W)w, ++forkcnt); 4891 ev_start (EV_A_ (W)w, ++forkcnt);
4488 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4892 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4489 forks [forkcnt - 1] = w; 4893 forks [forkcnt - 1] = w;
4490 4894
4491 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
4492} 4896}
4493 4897
4494void 4898void
4495ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4899ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4496{ 4900{
4497 clear_pending (EV_A_ (W)w); 4901 clear_pending (EV_A_ (W)w);
4498 if (expect_false (!ev_is_active (w))) 4902 if (expect_false (!ev_is_active (w)))
4499 return; 4903 return;
4500 4904
… …
4513} 4917}
4514#endif 4918#endif
4515 4919
4516#if EV_CLEANUP_ENABLE 4920#if EV_CLEANUP_ENABLE
4517void 4921void
4518ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4922ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4519{ 4923{
4520 if (expect_false (ev_is_active (w))) 4924 if (expect_false (ev_is_active (w)))
4521 return; 4925 return;
4522 4926
4523 EV_FREQUENT_CHECK; 4927 EV_FREQUENT_CHECK;
4524 4928
4525 ev_start (EV_A_ (W)w, ++cleanupcnt); 4929 ev_start (EV_A_ (W)w, ++cleanupcnt);
4526 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4930 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4527 cleanups [cleanupcnt - 1] = w; 4931 cleanups [cleanupcnt - 1] = w;
4528 4932
4529 /* cleanup watchers should never keep a refcount on the loop */ 4933 /* cleanup watchers should never keep a refcount on the loop */
4530 ev_unref (EV_A); 4934 ev_unref (EV_A);
4531 EV_FREQUENT_CHECK; 4935 EV_FREQUENT_CHECK;
4532} 4936}
4533 4937
4534void 4938void
4535ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4939ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4536{ 4940{
4537 clear_pending (EV_A_ (W)w); 4941 clear_pending (EV_A_ (W)w);
4538 if (expect_false (!ev_is_active (w))) 4942 if (expect_false (!ev_is_active (w)))
4539 return; 4943 return;
4540 4944
… …
4554} 4958}
4555#endif 4959#endif
4556 4960
4557#if EV_ASYNC_ENABLE 4961#if EV_ASYNC_ENABLE
4558void 4962void
4559ev_async_start (EV_P_ ev_async *w) EV_THROW 4963ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4560{ 4964{
4561 if (expect_false (ev_is_active (w))) 4965 if (expect_false (ev_is_active (w)))
4562 return; 4966 return;
4563 4967
4564 w->sent = 0; 4968 w->sent = 0;
… …
4566 evpipe_init (EV_A); 4970 evpipe_init (EV_A);
4567 4971
4568 EV_FREQUENT_CHECK; 4972 EV_FREQUENT_CHECK;
4569 4973
4570 ev_start (EV_A_ (W)w, ++asynccnt); 4974 ev_start (EV_A_ (W)w, ++asynccnt);
4571 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4975 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4572 asyncs [asynccnt - 1] = w; 4976 asyncs [asynccnt - 1] = w;
4573 4977
4574 EV_FREQUENT_CHECK; 4978 EV_FREQUENT_CHECK;
4575} 4979}
4576 4980
4577void 4981void
4578ev_async_stop (EV_P_ ev_async *w) EV_THROW 4982ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4579{ 4983{
4580 clear_pending (EV_A_ (W)w); 4984 clear_pending (EV_A_ (W)w);
4581 if (expect_false (!ev_is_active (w))) 4985 if (expect_false (!ev_is_active (w)))
4582 return; 4986 return;
4583 4987
… …
4594 4998
4595 EV_FREQUENT_CHECK; 4999 EV_FREQUENT_CHECK;
4596} 5000}
4597 5001
4598void 5002void
4599ev_async_send (EV_P_ ev_async *w) EV_THROW 5003ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4600{ 5004{
4601 w->sent = 1; 5005 w->sent = 1;
4602 evpipe_write (EV_A_ &async_pending); 5006 evpipe_write (EV_A_ &async_pending);
4603} 5007}
4604#endif 5008#endif
… …
4641 5045
4642 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5046 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4643} 5047}
4644 5048
4645void 5049void
4646ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5050ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4647{ 5051{
4648 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5052 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4649
4650 if (expect_false (!once))
4651 {
4652 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4653 return;
4654 }
4655 5053
4656 once->cb = cb; 5054 once->cb = cb;
4657 once->arg = arg; 5055 once->arg = arg;
4658 5056
4659 ev_init (&once->io, once_cb_io); 5057 ev_init (&once->io, once_cb_io);
… …
4672} 5070}
4673 5071
4674/*****************************************************************************/ 5072/*****************************************************************************/
4675 5073
4676#if EV_WALK_ENABLE 5074#if EV_WALK_ENABLE
4677void ecb_cold 5075ecb_cold
5076void
4678ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5077ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4679{ 5078{
4680 int i, j; 5079 int i, j;
4681 ev_watcher_list *wl, *wn; 5080 ev_watcher_list *wl, *wn;
4682 5081
4683 if (types & (EV_IO | EV_EMBED)) 5082 if (types & (EV_IO | EV_EMBED))

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