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Comparing libev/ev.c (file contents):
Revision 1.451 by root, Tue Jan 22 05:18:28 2013 UTC vs.
Revision 1.497 by root, Tue Jun 25 04:52:30 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
312#ifndef EV_USE_INOTIFY 337#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 339# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 340# else
316# define EV_USE_INOTIFY 0 341# define EV_USE_INOTIFY 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 380# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 381#endif
357 382
358#ifndef EV_HEAP_CACHE_AT 383#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 384# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
385#endif
386
387#ifdef __ANDROID__
388/* supposedly, android doesn't typedef fd_mask */
389# undef EV_USE_SELECT
390# define EV_USE_SELECT 0
391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
392# undef EV_USE_CLOCK_SYSCALL
393# define EV_USE_CLOCK_SYSCALL 0
394#endif
395
396/* aix's poll.h seems to cause lots of trouble */
397#ifdef _AIX
398/* AIX has a completely broken poll.h header */
399# undef EV_USE_POLL
400# define EV_USE_POLL 0
360#endif 401#endif
361 402
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 403/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */ 404/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 405#if EV_USE_CLOCK_SYSCALL
… …
373# endif 414# endif
374#endif 415#endif
375 416
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 417/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377 418
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
384#ifndef CLOCK_MONOTONIC 419#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 420# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 421# define EV_USE_MONOTONIC 0
387#endif 422#endif
388 423
… …
398 433
399#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
400/* hp-ux has it in sys/time.h, which we unconditionally include above */ 435/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux 436# if !defined _WIN32 && !defined __hpux
402# include <sys/select.h> 437# include <sys/select.h>
438# endif
439#endif
440
441#if EV_USE_LINUXAIO
442# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */
444# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0
403# endif 446# endif
404#endif 447#endif
405 448
406#if EV_USE_INOTIFY 449#if EV_USE_INOTIFY
407# include <sys/statfs.h> 450# include <sys/statfs.h>
… …
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
477/* 520/*
478 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
479 * 522 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 525 * All rights reserved.
483 * 526 *
484 * Redistribution and use in source and binary forms, with or without modifica- 527 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 542 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 545 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 546 * OF THE POSSIBILITY OF SUCH DAMAGE.
547 *
548 * Alternatively, the contents of this file may be used under the terms of
549 * the GNU General Public License ("GPL") version 2 or any later version,
550 * in which case the provisions of the GPL are applicable instead of
551 * the above. If you wish to allow the use of your version of this file
552 * only under the terms of the GPL and not to allow others to use your
553 * version of this file under the BSD license, indicate your decision
554 * by deleting the provisions above and replace them with the notice
555 * and other provisions required by the GPL. If you do not delete the
556 * provisions above, a recipient may use your version of this file under
557 * either the BSD or the GPL.
504 */ 558 */
505 559
506#ifndef ECB_H 560#ifndef ECB_H
507#define ECB_H 561#define ECB_H
508 562
509/* 16 bits major, 16 bits minor */ 563/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010002 564#define ECB_VERSION 0x00010006
511 565
512#ifdef _WIN32 566#ifdef _WIN32
513 typedef signed char int8_t; 567 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
532 typedef uint32_t uintptr_t; 586 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 587 typedef int32_t intptr_t;
534 #endif 588 #endif
535#else 589#else
536 #include <inttypes.h> 590 #include <inttypes.h>
537 #if UINTMAX_MAX > 0xffffffffU 591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
538 #define ECB_PTRSIZE 8 592 #define ECB_PTRSIZE 8
539 #else 593 #else
540 #define ECB_PTRSIZE 4 594 #define ECB_PTRSIZE 4
595 #endif
596#endif
597
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
600
601/* work around x32 idiocy by defining proper macros */
602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
603 #if _ILP32
604 #define ECB_AMD64_X32 1
605 #else
606 #define ECB_AMD64 1
541 #endif 607 #endif
542#endif 608#endif
543 609
544/* many compilers define _GNUC_ to some versions but then only implement 610/* many compilers define _GNUC_ to some versions but then only implement
545 * what their idiot authors think are the "more important" extensions, 611 * what their idiot authors think are the "more important" extensions,
546 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
547 * or so. 613 * or so.
548 * we try to detect these and simply assume they are not gcc - if they have 614 * we try to detect these and simply assume they are not gcc - if they have
549 * an issue with that they should have done it right in the first place. 615 * an issue with that they should have done it right in the first place.
550 */ 616 */
551#ifndef ECB_GCC_VERSION
552 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 617#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
553 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
554 #else 619#else
555 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 620 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
556 #endif 621#endif
557#endif
558 622
559#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 623#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
560#define ECB_C99 (__STDC_VERSION__ >= 199901L) 624
561#define ECB_C11 (__STDC_VERSION__ >= 201112L) 625#if __clang__ && defined __has_builtin
626 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
627#else
628 #define ECB_CLANG_BUILTIN(x) 0
629#endif
630
631#if __clang__ && defined __has_extension
632 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
633#else
634 #define ECB_CLANG_EXTENSION(x) 0
635#endif
636
562#define ECB_CPP (__cplusplus+0) 637#define ECB_CPP (__cplusplus+0)
563#define ECB_CPP11 (__cplusplus >= 201103L) 638#define ECB_CPP11 (__cplusplus >= 201103L)
639#define ECB_CPP14 (__cplusplus >= 201402L)
640#define ECB_CPP17 (__cplusplus >= 201703L)
641
642#if ECB_CPP
643 #define ECB_C 0
644 #define ECB_STDC_VERSION 0
645#else
646 #define ECB_C 1
647 #define ECB_STDC_VERSION __STDC_VERSION__
648#endif
649
650#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
651#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
652#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
564 653
565#if ECB_CPP 654#if ECB_CPP
566 #define ECB_EXTERN_C extern "C" 655 #define ECB_EXTERN_C extern "C"
567 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 656 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
568 #define ECB_EXTERN_C_END } 657 #define ECB_EXTERN_C_END }
… …
583 672
584#if ECB_NO_SMP 673#if ECB_NO_SMP
585 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
586#endif 675#endif
587 676
677/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
678#if __xlC__ && ECB_CPP
679 #include <builtins.h>
680#endif
681
682#if 1400 <= _MSC_VER
683 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
684#endif
685
588#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
589 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 687 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
688 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
590 #if __i386 || __i386__ 689 #if __i386 || __i386__
591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
592 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
593 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
594 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 693 #elif ECB_GCC_AMD64
595 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
596 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 695 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
597 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 696 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
598 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 697 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
699 #elif defined __ARM_ARCH_2__ \
700 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
701 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
702 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
703 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
704 || defined __ARM_ARCH_5TEJ__
705 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
600 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 706 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
601 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 707 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
708 || defined __ARM_ARCH_6T2__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 709 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
603 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 710 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
604 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 711 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 712 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
606 #elif __sparc || __sparc__ 713 #elif __aarch64__
714 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
715 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 716 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 717 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 718 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
610 #elif defined __s390__ || defined __s390x__ 719 #elif defined __s390__ || defined __s390x__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 720 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
612 #elif defined __mips__ 721 #elif defined __mips__
722 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
723 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
613 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 724 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
614 #elif defined __alpha__ 725 #elif defined __alpha__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 726 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
616 #elif defined __hppa__ 727 #elif defined __hppa__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 728 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
618 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 729 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
619 #elif defined __ia64__ 730 #elif defined __ia64__
620 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 731 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
732 #elif defined __m68k__
733 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
734 #elif defined __m88k__
735 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
736 #elif defined __sh__
737 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
621 #endif 738 #endif
622 #endif 739 #endif
623#endif 740#endif
624 741
625#ifndef ECB_MEMORY_FENCE 742#ifndef ECB_MEMORY_FENCE
626 #if ECB_GCC_VERSION(4,7) 743 #if ECB_GCC_VERSION(4,7)
627 /* see comment below (stdatomic.h) about the C11 memory model. */ 744 /* see comment below (stdatomic.h) about the C11 memory model. */
628 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 745 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
746 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
747 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
748 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
629 749
630 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 750 #elif ECB_CLANG_EXTENSION(c_atomic)
631 * without risking compile time errors with other compilers. We *could*
632 * define our own ecb_clang_has_feature, but I just can't be bothered to work
633 * around this shit time and again.
634 * #elif defined __clang && __has_feature (cxx_atomic)
635 * // see comment below (stdatomic.h) about the C11 memory model. 751 /* see comment below (stdatomic.h) about the C11 memory model. */
636 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 752 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
637 */ 753 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
754 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
755 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
638 756
639 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 757 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
640 #define ECB_MEMORY_FENCE __sync_synchronize () 758 #define ECB_MEMORY_FENCE __sync_synchronize ()
759 #elif _MSC_VER >= 1500 /* VC++ 2008 */
760 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
761 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
762 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
763 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
764 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
641 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 765 #elif _MSC_VER >= 1400 /* VC++ 2005 */
642 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 766 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
643 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 767 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
644 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 768 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
645 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 769 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
646 #elif defined _WIN32 770 #elif defined _WIN32
647 #include <WinNT.h> 771 #include <WinNT.h>
648 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 772 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
649 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 773 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
650 #include <mbarrier.h> 774 #include <mbarrier.h>
651 #define ECB_MEMORY_FENCE __machine_rw_barrier () 775 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
652 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 776 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
653 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 777 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
778 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
654 #elif __xlC__ 779 #elif __xlC__
655 #define ECB_MEMORY_FENCE __sync () 780 #define ECB_MEMORY_FENCE __sync ()
656 #endif 781 #endif
657#endif 782#endif
658 783
659#ifndef ECB_MEMORY_FENCE 784#ifndef ECB_MEMORY_FENCE
660 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 785 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
661 /* we assume that these memory fences work on all variables/all memory accesses, */ 786 /* we assume that these memory fences work on all variables/all memory accesses, */
662 /* not just C11 atomics and atomic accesses */ 787 /* not just C11 atomics and atomic accesses */
663 #include <stdatomic.h> 788 #include <stdatomic.h>
664 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
665 /* any fence other than seq_cst, which isn't very efficient for us. */
666 /* Why that is, we don't know - either the C11 memory model is quite useless */
667 /* for most usages, or gcc and clang have a bug */
668 /* I *currently* lean towards the latter, and inefficiently implement */
669 /* all three of ecb's fences as a seq_cst fence */
670 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 789 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
790 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
791 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
671 #endif 792 #endif
672#endif 793#endif
673 794
674#ifndef ECB_MEMORY_FENCE 795#ifndef ECB_MEMORY_FENCE
675 #if !ECB_AVOID_PTHREADS 796 #if !ECB_AVOID_PTHREADS
… …
695 816
696#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 817#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
697 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 818 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
698#endif 819#endif
699 820
821#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
822 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
823#endif
824
700/*****************************************************************************/ 825/*****************************************************************************/
701 826
702#if __cplusplus 827#if ECB_CPP
703 #define ecb_inline static inline 828 #define ecb_inline static inline
704#elif ECB_GCC_VERSION(2,5) 829#elif ECB_GCC_VERSION(2,5)
705 #define ecb_inline static __inline__ 830 #define ecb_inline static __inline__
706#elif ECB_C99 831#elif ECB_C99
707 #define ecb_inline static inline 832 #define ecb_inline static inline
… …
721 846
722#define ECB_CONCAT_(a, b) a ## b 847#define ECB_CONCAT_(a, b) a ## b
723#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 848#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
724#define ECB_STRINGIFY_(a) # a 849#define ECB_STRINGIFY_(a) # a
725#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 850#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
851#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
726 852
727#define ecb_function_ ecb_inline 853#define ecb_function_ ecb_inline
728 854
729#if ECB_GCC_VERSION(3,1) 855#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
730 #define ecb_attribute(attrlist) __attribute__(attrlist) 856 #define ecb_attribute(attrlist) __attribute__ (attrlist)
857#else
858 #define ecb_attribute(attrlist)
859#endif
860
861#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
731 #define ecb_is_constant(expr) __builtin_constant_p (expr) 862 #define ecb_is_constant(expr) __builtin_constant_p (expr)
863#else
864 /* possible C11 impl for integral types
865 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
866 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
867
868 #define ecb_is_constant(expr) 0
869#endif
870
871#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
732 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 872 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
873#else
874 #define ecb_expect(expr,value) (expr)
875#endif
876
877#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
733 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 878 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
734#else 879#else
735 #define ecb_attribute(attrlist)
736 #define ecb_is_constant(expr) 0
737 #define ecb_expect(expr,value) (expr)
738 #define ecb_prefetch(addr,rw,locality) 880 #define ecb_prefetch(addr,rw,locality)
739#endif 881#endif
740 882
741/* no emulation for ecb_decltype */ 883/* no emulation for ecb_decltype */
742#if ECB_GCC_VERSION(4,5) 884#if ECB_CPP11
885 // older implementations might have problems with decltype(x)::type, work around it
886 template<class T> struct ecb_decltype_t { typedef T type; };
743 #define ecb_decltype(x) __decltype(x) 887 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
744#elif ECB_GCC_VERSION(3,0) 888#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
745 #define ecb_decltype(x) __typeof(x) 889 #define ecb_decltype(x) __typeof__ (x)
746#endif 890#endif
747 891
892#if _MSC_VER >= 1300
893 #define ecb_deprecated __declspec (deprecated)
894#else
895 #define ecb_deprecated ecb_attribute ((__deprecated__))
896#endif
897
898#if _MSC_VER >= 1500
899 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
900#elif ECB_GCC_VERSION(4,5)
901 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
902#else
903 #define ecb_deprecated_message(msg) ecb_deprecated
904#endif
905
906#if _MSC_VER >= 1400
907 #define ecb_noinline __declspec (noinline)
908#else
748#define ecb_noinline ecb_attribute ((__noinline__)) 909 #define ecb_noinline ecb_attribute ((__noinline__))
910#endif
911
749#define ecb_unused ecb_attribute ((__unused__)) 912#define ecb_unused ecb_attribute ((__unused__))
750#define ecb_const ecb_attribute ((__const__)) 913#define ecb_const ecb_attribute ((__const__))
751#define ecb_pure ecb_attribute ((__pure__)) 914#define ecb_pure ecb_attribute ((__pure__))
752 915
753#if ECB_C11 916#if ECB_C11 || __IBMC_NORETURN
917 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
754 #define ecb_noreturn _Noreturn 918 #define ecb_noreturn _Noreturn
919#elif ECB_CPP11
920 #define ecb_noreturn [[noreturn]]
921#elif _MSC_VER >= 1200
922 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
923 #define ecb_noreturn __declspec (noreturn)
755#else 924#else
756 #define ecb_noreturn ecb_attribute ((__noreturn__)) 925 #define ecb_noreturn ecb_attribute ((__noreturn__))
757#endif 926#endif
758 927
759#if ECB_GCC_VERSION(4,3) 928#if ECB_GCC_VERSION(4,3)
… …
774/* for compatibility to the rest of the world */ 943/* for compatibility to the rest of the world */
775#define ecb_likely(expr) ecb_expect_true (expr) 944#define ecb_likely(expr) ecb_expect_true (expr)
776#define ecb_unlikely(expr) ecb_expect_false (expr) 945#define ecb_unlikely(expr) ecb_expect_false (expr)
777 946
778/* count trailing zero bits and count # of one bits */ 947/* count trailing zero bits and count # of one bits */
779#if ECB_GCC_VERSION(3,4) 948#if ECB_GCC_VERSION(3,4) \
949 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
950 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
951 && ECB_CLANG_BUILTIN(__builtin_popcount))
780 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 952 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
781 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 953 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
782 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 954 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
783 #define ecb_ctz32(x) __builtin_ctz (x) 955 #define ecb_ctz32(x) __builtin_ctz (x)
784 #define ecb_ctz64(x) __builtin_ctzll (x) 956 #define ecb_ctz64(x) __builtin_ctzll (x)
785 #define ecb_popcount32(x) __builtin_popcount (x) 957 #define ecb_popcount32(x) __builtin_popcount (x)
786 /* no popcountll */ 958 /* no popcountll */
787#else 959#else
788 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 960 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
789 ecb_function_ int 961 ecb_function_ ecb_const int
790 ecb_ctz32 (uint32_t x) 962 ecb_ctz32 (uint32_t x)
791 { 963 {
964#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
965 unsigned long r;
966 _BitScanForward (&r, x);
967 return (int)r;
968#else
792 int r = 0; 969 int r = 0;
793 970
794 x &= ~x + 1; /* this isolates the lowest bit */ 971 x &= ~x + 1; /* this isolates the lowest bit */
795 972
796#if ECB_branchless_on_i386 973#if ECB_branchless_on_i386
… …
806 if (x & 0xff00ff00) r += 8; 983 if (x & 0xff00ff00) r += 8;
807 if (x & 0xffff0000) r += 16; 984 if (x & 0xffff0000) r += 16;
808#endif 985#endif
809 986
810 return r; 987 return r;
988#endif
811 } 989 }
812 990
813 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 991 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
814 ecb_function_ int 992 ecb_function_ ecb_const int
815 ecb_ctz64 (uint64_t x) 993 ecb_ctz64 (uint64_t x)
816 { 994 {
995#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
996 unsigned long r;
997 _BitScanForward64 (&r, x);
998 return (int)r;
999#else
817 int shift = x & 0xffffffffU ? 0 : 32; 1000 int shift = x & 0xffffffff ? 0 : 32;
818 return ecb_ctz32 (x >> shift) + shift; 1001 return ecb_ctz32 (x >> shift) + shift;
1002#endif
819 } 1003 }
820 1004
821 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1005 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
822 ecb_function_ int 1006 ecb_function_ ecb_const int
823 ecb_popcount32 (uint32_t x) 1007 ecb_popcount32 (uint32_t x)
824 { 1008 {
825 x -= (x >> 1) & 0x55555555; 1009 x -= (x >> 1) & 0x55555555;
826 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1010 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
827 x = ((x >> 4) + x) & 0x0f0f0f0f; 1011 x = ((x >> 4) + x) & 0x0f0f0f0f;
828 x *= 0x01010101; 1012 x *= 0x01010101;
829 1013
830 return x >> 24; 1014 return x >> 24;
831 } 1015 }
832 1016
833 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1017 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
834 ecb_function_ int ecb_ld32 (uint32_t x) 1018 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
835 { 1019 {
1020#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1021 unsigned long r;
1022 _BitScanReverse (&r, x);
1023 return (int)r;
1024#else
836 int r = 0; 1025 int r = 0;
837 1026
838 if (x >> 16) { x >>= 16; r += 16; } 1027 if (x >> 16) { x >>= 16; r += 16; }
839 if (x >> 8) { x >>= 8; r += 8; } 1028 if (x >> 8) { x >>= 8; r += 8; }
840 if (x >> 4) { x >>= 4; r += 4; } 1029 if (x >> 4) { x >>= 4; r += 4; }
841 if (x >> 2) { x >>= 2; r += 2; } 1030 if (x >> 2) { x >>= 2; r += 2; }
842 if (x >> 1) { r += 1; } 1031 if (x >> 1) { r += 1; }
843 1032
844 return r; 1033 return r;
1034#endif
845 } 1035 }
846 1036
847 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1037 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
848 ecb_function_ int ecb_ld64 (uint64_t x) 1038 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
849 { 1039 {
1040#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1041 unsigned long r;
1042 _BitScanReverse64 (&r, x);
1043 return (int)r;
1044#else
850 int r = 0; 1045 int r = 0;
851 1046
852 if (x >> 32) { x >>= 32; r += 32; } 1047 if (x >> 32) { x >>= 32; r += 32; }
853 1048
854 return r + ecb_ld32 (x); 1049 return r + ecb_ld32 (x);
1050#endif
855 } 1051 }
856#endif 1052#endif
857 1053
858ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1054ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
859ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1055ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
860ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1056ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
861ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1057ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
862 1058
863ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1059ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
864ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1060ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
865{ 1061{
866 return ( (x * 0x0802U & 0x22110U) 1062 return ( (x * 0x0802U & 0x22110U)
867 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1063 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
868} 1064}
869 1065
870ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1066ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
871ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1067ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
872{ 1068{
873 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1069 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
874 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1070 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
875 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1071 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
876 x = ( x >> 8 ) | ( x << 8); 1072 x = ( x >> 8 ) | ( x << 8);
877 1073
878 return x; 1074 return x;
879} 1075}
880 1076
881ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1077ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
882ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1078ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
883{ 1079{
884 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1080 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
885 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1081 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
886 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1082 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
887 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1083 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
890 return x; 1086 return x;
891} 1087}
892 1088
893/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1089/* popcount64 is only available on 64 bit cpus as gcc builtin */
894/* so for this version we are lazy */ 1090/* so for this version we are lazy */
895ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1091ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
896ecb_function_ int 1092ecb_function_ ecb_const int
897ecb_popcount64 (uint64_t x) 1093ecb_popcount64 (uint64_t x)
898{ 1094{
899 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1095 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
900} 1096}
901 1097
902ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1098ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
903ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1099ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
904ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
905ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
906ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
907ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
908ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1104ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
909ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1105ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
910 1106
911ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1107ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
912ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1108ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
913ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1109ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
914ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1110ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
915ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1111ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
916ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1112ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
917ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1113ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
918ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1114ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
919 1115
920#if ECB_GCC_VERSION(4,3) 1116#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1117 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1118 #define ecb_bswap16(x) __builtin_bswap16 (x)
1119 #else
921 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1120 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1121 #endif
922 #define ecb_bswap32(x) __builtin_bswap32 (x) 1122 #define ecb_bswap32(x) __builtin_bswap32 (x)
923 #define ecb_bswap64(x) __builtin_bswap64 (x) 1123 #define ecb_bswap64(x) __builtin_bswap64 (x)
1124#elif _MSC_VER
1125 #include <stdlib.h>
1126 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1127 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1128 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
924#else 1129#else
925 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1130 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
926 ecb_function_ uint16_t 1131 ecb_function_ ecb_const uint16_t
927 ecb_bswap16 (uint16_t x) 1132 ecb_bswap16 (uint16_t x)
928 { 1133 {
929 return ecb_rotl16 (x, 8); 1134 return ecb_rotl16 (x, 8);
930 } 1135 }
931 1136
932 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1137 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
933 ecb_function_ uint32_t 1138 ecb_function_ ecb_const uint32_t
934 ecb_bswap32 (uint32_t x) 1139 ecb_bswap32 (uint32_t x)
935 { 1140 {
936 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1141 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
937 } 1142 }
938 1143
939 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1144 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
940 ecb_function_ uint64_t 1145 ecb_function_ ecb_const uint64_t
941 ecb_bswap64 (uint64_t x) 1146 ecb_bswap64 (uint64_t x)
942 { 1147 {
943 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1148 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
944 } 1149 }
945#endif 1150#endif
946 1151
947#if ECB_GCC_VERSION(4,5) 1152#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
948 #define ecb_unreachable() __builtin_unreachable () 1153 #define ecb_unreachable() __builtin_unreachable ()
949#else 1154#else
950 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1155 /* this seems to work fine, but gcc always emits a warning for it :/ */
951 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1156 ecb_inline ecb_noreturn void ecb_unreachable (void);
952 ecb_inline void ecb_unreachable (void) { } 1157 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
953#endif 1158#endif
954 1159
955/* try to tell the compiler that some condition is definitely true */ 1160/* try to tell the compiler that some condition is definitely true */
956#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1161#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
957 1162
958ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1163ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
959ecb_inline unsigned char 1164ecb_inline ecb_const uint32_t
960ecb_byteorder_helper (void) 1165ecb_byteorder_helper (void)
961{ 1166{
962 /* the union code still generates code under pressure in gcc, */ 1167 /* the union code still generates code under pressure in gcc, */
963 /* but less than using pointers, and always seems to */ 1168 /* but less than using pointers, and always seems to */
964 /* successfully return a constant. */ 1169 /* successfully return a constant. */
965 /* the reason why we have this horrible preprocessor mess */ 1170 /* the reason why we have this horrible preprocessor mess */
966 /* is to avoid it in all cases, at least on common architectures */ 1171 /* is to avoid it in all cases, at least on common architectures */
967 /* or when using a recent enough gcc version (>= 4.6) */ 1172 /* or when using a recent enough gcc version (>= 4.6) */
968#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
969 return 0x44;
970#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1173#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1174 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1175 #define ECB_LITTLE_ENDIAN 1
971 return 0x44; 1176 return 0x44332211;
972#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1177#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1178 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1179 #define ECB_BIG_ENDIAN 1
973 return 0x11; 1180 return 0x11223344;
974#else 1181#else
975 union 1182 union
976 { 1183 {
1184 uint8_t c[4];
977 uint32_t i; 1185 uint32_t u;
978 uint8_t c;
979 } u = { 0x11223344 }; 1186 } u = { 0x11, 0x22, 0x33, 0x44 };
980 return u.c; 1187 return u.u;
981#endif 1188#endif
982} 1189}
983 1190
984ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_big_endian (void);
985ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1192ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
986ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1193ecb_inline ecb_const ecb_bool ecb_little_endian (void);
987ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1194ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
988 1195
989#if ECB_GCC_VERSION(3,0) || ECB_C99 1196#if ECB_GCC_VERSION(3,0) || ECB_C99
990 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1197 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
991#else 1198#else
992 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1199 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
993#endif 1200#endif
994 1201
995#if __cplusplus 1202#if ECB_CPP
996 template<typename T> 1203 template<typename T>
997 static inline T ecb_div_rd (T val, T div) 1204 static inline T ecb_div_rd (T val, T div)
998 { 1205 {
999 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1206 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1000 } 1207 }
… …
1017 } 1224 }
1018#else 1225#else
1019 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1226 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1020#endif 1227#endif
1021 1228
1229ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1230ecb_function_ ecb_const uint32_t
1231ecb_binary16_to_binary32 (uint32_t x)
1232{
1233 unsigned int s = (x & 0x8000) << (31 - 15);
1234 int e = (x >> 10) & 0x001f;
1235 unsigned int m = x & 0x03ff;
1236
1237 if (ecb_expect_false (e == 31))
1238 /* infinity or NaN */
1239 e = 255 - (127 - 15);
1240 else if (ecb_expect_false (!e))
1241 {
1242 if (ecb_expect_true (!m))
1243 /* zero, handled by code below by forcing e to 0 */
1244 e = 0 - (127 - 15);
1245 else
1246 {
1247 /* subnormal, renormalise */
1248 unsigned int s = 10 - ecb_ld32 (m);
1249
1250 m = (m << s) & 0x3ff; /* mask implicit bit */
1251 e -= s - 1;
1252 }
1253 }
1254
1255 /* e and m now are normalised, or zero, (or inf or nan) */
1256 e += 127 - 15;
1257
1258 return s | (e << 23) | (m << (23 - 10));
1259}
1260
1261ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1262ecb_function_ ecb_const uint16_t
1263ecb_binary32_to_binary16 (uint32_t x)
1264{
1265 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1266 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1267 unsigned int m = x & 0x007fffff;
1268
1269 x &= 0x7fffffff;
1270
1271 /* if it's within range of binary16 normals, use fast path */
1272 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1273 {
1274 /* mantissa round-to-even */
1275 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1276
1277 /* handle overflow */
1278 if (ecb_expect_false (m >= 0x00800000))
1279 {
1280 m >>= 1;
1281 e += 1;
1282 }
1283
1284 return s | (e << 10) | (m >> (23 - 10));
1285 }
1286
1287 /* handle large numbers and infinity */
1288 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1289 return s | 0x7c00;
1290
1291 /* handle zero, subnormals and small numbers */
1292 if (ecb_expect_true (x < 0x38800000))
1293 {
1294 /* zero */
1295 if (ecb_expect_true (!x))
1296 return s;
1297
1298 /* handle subnormals */
1299
1300 /* too small, will be zero */
1301 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1302 return s;
1303
1304 m |= 0x00800000; /* make implicit bit explicit */
1305
1306 /* very tricky - we need to round to the nearest e (+10) bit value */
1307 {
1308 unsigned int bits = 14 - e;
1309 unsigned int half = (1 << (bits - 1)) - 1;
1310 unsigned int even = (m >> bits) & 1;
1311
1312 /* if this overflows, we will end up with a normalised number */
1313 m = (m + half + even) >> bits;
1314 }
1315
1316 return s | m;
1317 }
1318
1319 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1320 m >>= 13;
1321
1322 return s | 0x7c00 | m | !m;
1323}
1324
1022/*******************************************************************************/ 1325/*******************************************************************************/
1023/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1326/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1024 1327
1025/* basically, everything uses "ieee pure-endian" floating point numbers */ 1328/* basically, everything uses "ieee pure-endian" floating point numbers */
1026/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1329/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1027#if 0 \ 1330#if 0 \
1028 || __i386 || __i386__ \ 1331 || __i386 || __i386__ \
1029 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1332 || ECB_GCC_AMD64 \
1030 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1333 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1031 || defined __arm__ && defined __ARM_EABI__ \
1032 || defined __s390__ || defined __s390x__ \ 1334 || defined __s390__ || defined __s390x__ \
1033 || defined __mips__ \ 1335 || defined __mips__ \
1034 || defined __alpha__ \ 1336 || defined __alpha__ \
1035 || defined __hppa__ \ 1337 || defined __hppa__ \
1036 || defined __ia64__ \ 1338 || defined __ia64__ \
1339 || defined __m68k__ \
1340 || defined __m88k__ \
1341 || defined __sh__ \
1037 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1342 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1343 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1344 || defined __aarch64__
1038 #define ECB_STDFP 1 1345 #define ECB_STDFP 1
1039 #include <string.h> /* for memcpy */ 1346 #include <string.h> /* for memcpy */
1040#else 1347#else
1041 #define ECB_STDFP 0 1348 #define ECB_STDFP 0
1042 #include <math.h> /* for frexp*, ldexp* */
1043#endif 1349#endif
1044 1350
1045#ifndef ECB_NO_LIBM 1351#ifndef ECB_NO_LIBM
1046 1352
1353 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1354
1355 /* only the oldest of old doesn't have this one. solaris. */
1356 #ifdef INFINITY
1357 #define ECB_INFINITY INFINITY
1358 #else
1359 #define ECB_INFINITY HUGE_VAL
1360 #endif
1361
1362 #ifdef NAN
1363 #define ECB_NAN NAN
1364 #else
1365 #define ECB_NAN ECB_INFINITY
1366 #endif
1367
1368 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1369 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1370 #define ecb_frexpf(x,e) frexpf ((x), (e))
1371 #else
1372 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1373 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1374 #endif
1375
1047 /* convert a float to ieee single/binary32 */ 1376 /* convert a float to ieee single/binary32 */
1048 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1377 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1049 ecb_function_ uint32_t 1378 ecb_function_ ecb_const uint32_t
1050 ecb_float_to_binary32 (float x) 1379 ecb_float_to_binary32 (float x)
1051 { 1380 {
1052 uint32_t r; 1381 uint32_t r;
1053 1382
1054 #if ECB_STDFP 1383 #if ECB_STDFP
… …
1061 if (x == 0e0f ) return 0x00000000U; 1390 if (x == 0e0f ) return 0x00000000U;
1062 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1391 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1063 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1392 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1064 if (x != x ) return 0x7fbfffffU; 1393 if (x != x ) return 0x7fbfffffU;
1065 1394
1066 m = frexpf (x, &e) * 0x1000000U; 1395 m = ecb_frexpf (x, &e) * 0x1000000U;
1067 1396
1068 r = m & 0x80000000U; 1397 r = m & 0x80000000U;
1069 1398
1070 if (r) 1399 if (r)
1071 m = -m; 1400 m = -m;
… …
1083 1412
1084 return r; 1413 return r;
1085 } 1414 }
1086 1415
1087 /* converts an ieee single/binary32 to a float */ 1416 /* converts an ieee single/binary32 to a float */
1088 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1417 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1089 ecb_function_ float 1418 ecb_function_ ecb_const float
1090 ecb_binary32_to_float (uint32_t x) 1419 ecb_binary32_to_float (uint32_t x)
1091 { 1420 {
1092 float r; 1421 float r;
1093 1422
1094 #if ECB_STDFP 1423 #if ECB_STDFP
… …
1104 x |= 0x800000U; 1433 x |= 0x800000U;
1105 else 1434 else
1106 e = 1; 1435 e = 1;
1107 1436
1108 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1437 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1109 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1438 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1110 1439
1111 r = neg ? -r : r; 1440 r = neg ? -r : r;
1112 #endif 1441 #endif
1113 1442
1114 return r; 1443 return r;
1115 } 1444 }
1116 1445
1117 /* convert a double to ieee double/binary64 */ 1446 /* convert a double to ieee double/binary64 */
1118 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1447 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1119 ecb_function_ uint64_t 1448 ecb_function_ ecb_const uint64_t
1120 ecb_double_to_binary64 (double x) 1449 ecb_double_to_binary64 (double x)
1121 { 1450 {
1122 uint64_t r; 1451 uint64_t r;
1123 1452
1124 #if ECB_STDFP 1453 #if ECB_STDFP
… …
1153 1482
1154 return r; 1483 return r;
1155 } 1484 }
1156 1485
1157 /* converts an ieee double/binary64 to a double */ 1486 /* converts an ieee double/binary64 to a double */
1158 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1487 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1159 ecb_function_ double 1488 ecb_function_ ecb_const double
1160 ecb_binary64_to_double (uint64_t x) 1489 ecb_binary64_to_double (uint64_t x)
1161 { 1490 {
1162 double r; 1491 double r;
1163 1492
1164 #if ECB_STDFP 1493 #if ECB_STDFP
… …
1180 1509
1181 r = neg ? -r : r; 1510 r = neg ? -r : r;
1182 #endif 1511 #endif
1183 1512
1184 return r; 1513 return r;
1514 }
1515
1516 /* convert a float to ieee half/binary16 */
1517 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1518 ecb_function_ ecb_const uint16_t
1519 ecb_float_to_binary16 (float x)
1520 {
1521 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1522 }
1523
1524 /* convert an ieee half/binary16 to float */
1525 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1526 ecb_function_ ecb_const float
1527 ecb_binary16_to_float (uint16_t x)
1528 {
1529 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1185 } 1530 }
1186 1531
1187#endif 1532#endif
1188 1533
1189#endif 1534#endif
… …
1214#define inline_size ecb_inline 1559#define inline_size ecb_inline
1215 1560
1216#if EV_FEATURE_CODE 1561#if EV_FEATURE_CODE
1217# define inline_speed ecb_inline 1562# define inline_speed ecb_inline
1218#else 1563#else
1219# define inline_speed static noinline 1564# define inline_speed noinline static
1220#endif 1565#endif
1221 1566
1222#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1567#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1223 1568
1224#if EV_MINPRI == EV_MAXPRI 1569#if EV_MINPRI == EV_MAXPRI
1225# define ABSPRI(w) (((W)w), 0) 1570# define ABSPRI(w) (((W)w), 0)
1226#else 1571#else
1227# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1572# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1228#endif 1573#endif
1229 1574
1230#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1575#define EMPTY /* required for microsofts broken pseudo-c compiler */
1231#define EMPTY2(a,b) /* used to suppress some warnings */
1232 1576
1233typedef ev_watcher *W; 1577typedef ev_watcher *W;
1234typedef ev_watcher_list *WL; 1578typedef ev_watcher_list *WL;
1235typedef ev_watcher_time *WT; 1579typedef ev_watcher_time *WT;
1236 1580
… …
1261# include "ev_win32.c" 1605# include "ev_win32.c"
1262#endif 1606#endif
1263 1607
1264/*****************************************************************************/ 1608/*****************************************************************************/
1265 1609
1610#if EV_USE_LINUXAIO
1611# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1612#endif
1613
1266/* define a suitable floor function (only used by periodics atm) */ 1614/* define a suitable floor function (only used by periodics atm) */
1267 1615
1268#if EV_USE_FLOOR 1616#if EV_USE_FLOOR
1269# include <math.h> 1617# include <math.h>
1270# define ev_floor(v) floor (v) 1618# define ev_floor(v) floor (v)
1271#else 1619#else
1272 1620
1273#include <float.h> 1621#include <float.h>
1274 1622
1275/* a floor() replacement function, should be independent of ev_tstamp type */ 1623/* a floor() replacement function, should be independent of ev_tstamp type */
1624noinline
1276static ev_tstamp noinline 1625static ev_tstamp
1277ev_floor (ev_tstamp v) 1626ev_floor (ev_tstamp v)
1278{ 1627{
1279 /* the choice of shift factor is not terribly important */ 1628 /* the choice of shift factor is not terribly important */
1280#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1629#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1281 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1630 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1313 1662
1314#ifdef __linux 1663#ifdef __linux
1315# include <sys/utsname.h> 1664# include <sys/utsname.h>
1316#endif 1665#endif
1317 1666
1318static unsigned int noinline ecb_cold 1667noinline ecb_cold
1668static unsigned int
1319ev_linux_version (void) 1669ev_linux_version (void)
1320{ 1670{
1321#ifdef __linux 1671#ifdef __linux
1322 unsigned int v = 0; 1672 unsigned int v = 0;
1323 struct utsname buf; 1673 struct utsname buf;
… …
1352} 1702}
1353 1703
1354/*****************************************************************************/ 1704/*****************************************************************************/
1355 1705
1356#if EV_AVOID_STDIO 1706#if EV_AVOID_STDIO
1357static void noinline ecb_cold 1707noinline ecb_cold
1708static void
1358ev_printerr (const char *msg) 1709ev_printerr (const char *msg)
1359{ 1710{
1360 write (STDERR_FILENO, msg, strlen (msg)); 1711 write (STDERR_FILENO, msg, strlen (msg));
1361} 1712}
1362#endif 1713#endif
1363 1714
1364static void (*syserr_cb)(const char *msg) EV_THROW; 1715static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1365 1716
1366void ecb_cold 1717ecb_cold
1718void
1367ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1719ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1368{ 1720{
1369 syserr_cb = cb; 1721 syserr_cb = cb;
1370} 1722}
1371 1723
1372static void noinline ecb_cold 1724noinline ecb_cold
1725static void
1373ev_syserr (const char *msg) 1726ev_syserr (const char *msg)
1374{ 1727{
1375 if (!msg) 1728 if (!msg)
1376 msg = "(libev) system error"; 1729 msg = "(libev) system error";
1377 1730
… …
1390 abort (); 1743 abort ();
1391 } 1744 }
1392} 1745}
1393 1746
1394static void * 1747static void *
1395ev_realloc_emul (void *ptr, long size) EV_THROW 1748ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1396{ 1749{
1397 /* some systems, notably openbsd and darwin, fail to properly 1750 /* some systems, notably openbsd and darwin, fail to properly
1398 * implement realloc (x, 0) (as required by both ansi c-89 and 1751 * implement realloc (x, 0) (as required by both ansi c-89 and
1399 * the single unix specification, so work around them here. 1752 * the single unix specification, so work around them here.
1400 * recently, also (at least) fedora and debian started breaking it, 1753 * recently, also (at least) fedora and debian started breaking it,
… …
1406 1759
1407 free (ptr); 1760 free (ptr);
1408 return 0; 1761 return 0;
1409} 1762}
1410 1763
1411static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1764static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1412 1765
1413void ecb_cold 1766ecb_cold
1767void
1414ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1768ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1415{ 1769{
1416 alloc = cb; 1770 alloc = cb;
1417} 1771}
1418 1772
1419inline_speed void * 1773inline_speed void *
… …
1446typedef struct 1800typedef struct
1447{ 1801{
1448 WL head; 1802 WL head;
1449 unsigned char events; /* the events watched for */ 1803 unsigned char events; /* the events watched for */
1450 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1804 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1451 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1805 unsigned char emask; /* some backends store the actual kernel mask in here */
1452 unsigned char unused; 1806 unsigned char unused;
1453#if EV_USE_EPOLL 1807#if EV_USE_EPOLL
1454 unsigned int egen; /* generation counter to counter epoll bugs */ 1808 unsigned int egen; /* generation counter to counter epoll bugs */
1455#endif 1809#endif
1456#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1810#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1536 1890
1537/*****************************************************************************/ 1891/*****************************************************************************/
1538 1892
1539#ifndef EV_HAVE_EV_TIME 1893#ifndef EV_HAVE_EV_TIME
1540ev_tstamp 1894ev_tstamp
1541ev_time (void) EV_THROW 1895ev_time (void) EV_NOEXCEPT
1542{ 1896{
1543#if EV_USE_REALTIME 1897#if EV_USE_REALTIME
1544 if (expect_true (have_realtime)) 1898 if (expect_true (have_realtime))
1545 { 1899 {
1546 struct timespec ts; 1900 struct timespec ts;
… …
1570 return ev_time (); 1924 return ev_time ();
1571} 1925}
1572 1926
1573#if EV_MULTIPLICITY 1927#if EV_MULTIPLICITY
1574ev_tstamp 1928ev_tstamp
1575ev_now (EV_P) EV_THROW 1929ev_now (EV_P) EV_NOEXCEPT
1576{ 1930{
1577 return ev_rt_now; 1931 return ev_rt_now;
1578} 1932}
1579#endif 1933#endif
1580 1934
1581void 1935void
1582ev_sleep (ev_tstamp delay) EV_THROW 1936ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1583{ 1937{
1584 if (delay > 0.) 1938 if (delay > 0.)
1585 { 1939 {
1586#if EV_USE_NANOSLEEP 1940#if EV_USE_NANOSLEEP
1587 struct timespec ts; 1941 struct timespec ts;
1588 1942
1589 EV_TS_SET (ts, delay); 1943 EV_TS_SET (ts, delay);
1590 nanosleep (&ts, 0); 1944 nanosleep (&ts, 0);
1591#elif defined _WIN32 1945#elif defined _WIN32
1946 /* maybe this should round up, as ms is very low resolution */
1947 /* compared to select (µs) or nanosleep (ns) */
1592 Sleep ((unsigned long)(delay * 1e3)); 1948 Sleep ((unsigned long)(delay * 1e3));
1593#else 1949#else
1594 struct timeval tv; 1950 struct timeval tv;
1595 1951
1596 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1952 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1627 } 1983 }
1628 1984
1629 return ncur; 1985 return ncur;
1630} 1986}
1631 1987
1632static void * noinline ecb_cold 1988noinline ecb_cold
1989static void *
1633array_realloc (int elem, void *base, int *cur, int cnt) 1990array_realloc (int elem, void *base, int *cur, int cnt)
1634{ 1991{
1635 *cur = array_nextsize (elem, *cur, cnt); 1992 *cur = array_nextsize (elem, *cur, cnt);
1636 return ev_realloc (base, elem * *cur); 1993 return ev_realloc (base, elem * *cur);
1637} 1994}
1638 1995
1996#define array_needsize_noinit(base,offset,count)
1997
1639#define array_init_zero(base,count) \ 1998#define array_needsize_zerofill(base,offset,count) \
1640 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1999 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1641 2000
1642#define array_needsize(type,base,cur,cnt,init) \ 2001#define array_needsize(type,base,cur,cnt,init) \
1643 if (expect_false ((cnt) > (cur))) \ 2002 if (expect_false ((cnt) > (cur))) \
1644 { \ 2003 { \
1645 int ecb_unused ocur_ = (cur); \ 2004 ecb_unused int ocur_ = (cur); \
1646 (base) = (type *)array_realloc \ 2005 (base) = (type *)array_realloc \
1647 (sizeof (type), (base), &(cur), (cnt)); \ 2006 (sizeof (type), (base), &(cur), (cnt)); \
1648 init ((base) + (ocur_), (cur) - ocur_); \ 2007 init ((base), ocur_, ((cur) - ocur_)); \
1649 } 2008 }
1650 2009
1651#if 0 2010#if 0
1652#define array_slim(type,stem) \ 2011#define array_slim(type,stem) \
1653 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2012 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1662 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2021 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1663 2022
1664/*****************************************************************************/ 2023/*****************************************************************************/
1665 2024
1666/* dummy callback for pending events */ 2025/* dummy callback for pending events */
1667static void noinline 2026noinline
2027static void
1668pendingcb (EV_P_ ev_prepare *w, int revents) 2028pendingcb (EV_P_ ev_prepare *w, int revents)
1669{ 2029{
1670} 2030}
1671 2031
1672void noinline 2032noinline
2033void
1673ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2034ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1674{ 2035{
1675 W w_ = (W)w; 2036 W w_ = (W)w;
1676 int pri = ABSPRI (w_); 2037 int pri = ABSPRI (w_);
1677 2038
1678 if (expect_false (w_->pending)) 2039 if (expect_false (w_->pending))
1679 pendings [pri][w_->pending - 1].events |= revents; 2040 pendings [pri][w_->pending - 1].events |= revents;
1680 else 2041 else
1681 { 2042 {
1682 w_->pending = ++pendingcnt [pri]; 2043 w_->pending = ++pendingcnt [pri];
1683 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2044 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1684 pendings [pri][w_->pending - 1].w = w_; 2045 pendings [pri][w_->pending - 1].w = w_;
1685 pendings [pri][w_->pending - 1].events = revents; 2046 pendings [pri][w_->pending - 1].events = revents;
1686 } 2047 }
1687 2048
1688 pendingpri = NUMPRI - 1; 2049 pendingpri = NUMPRI - 1;
1689} 2050}
1690 2051
1691inline_speed void 2052inline_speed void
1692feed_reverse (EV_P_ W w) 2053feed_reverse (EV_P_ W w)
1693{ 2054{
1694 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2055 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1695 rfeeds [rfeedcnt++] = w; 2056 rfeeds [rfeedcnt++] = w;
1696} 2057}
1697 2058
1698inline_size void 2059inline_size void
1699feed_reverse_done (EV_P_ int revents) 2060feed_reverse_done (EV_P_ int revents)
… …
1739 if (expect_true (!anfd->reify)) 2100 if (expect_true (!anfd->reify))
1740 fd_event_nocheck (EV_A_ fd, revents); 2101 fd_event_nocheck (EV_A_ fd, revents);
1741} 2102}
1742 2103
1743void 2104void
1744ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2105ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1745{ 2106{
1746 if (fd >= 0 && fd < anfdmax) 2107 if (fd >= 0 && fd < anfdmax)
1747 fd_event_nocheck (EV_A_ fd, revents); 2108 fd_event_nocheck (EV_A_ fd, revents);
1748} 2109}
1749 2110
… …
1786 ev_io *w; 2147 ev_io *w;
1787 2148
1788 unsigned char o_events = anfd->events; 2149 unsigned char o_events = anfd->events;
1789 unsigned char o_reify = anfd->reify; 2150 unsigned char o_reify = anfd->reify;
1790 2151
1791 anfd->reify = 0; 2152 anfd->reify = 0;
1792 2153
1793 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2154 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1794 { 2155 {
1795 anfd->events = 0; 2156 anfd->events = 0;
1796 2157
… …
1807 2168
1808 fdchangecnt = 0; 2169 fdchangecnt = 0;
1809} 2170}
1810 2171
1811/* something about the given fd changed */ 2172/* something about the given fd changed */
1812inline_size void 2173inline_size
2174void
1813fd_change (EV_P_ int fd, int flags) 2175fd_change (EV_P_ int fd, int flags)
1814{ 2176{
1815 unsigned char reify = anfds [fd].reify; 2177 unsigned char reify = anfds [fd].reify;
1816 anfds [fd].reify |= flags; 2178 anfds [fd].reify |= flags;
1817 2179
1818 if (expect_true (!reify)) 2180 if (expect_true (!reify))
1819 { 2181 {
1820 ++fdchangecnt; 2182 ++fdchangecnt;
1821 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2183 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1822 fdchanges [fdchangecnt - 1] = fd; 2184 fdchanges [fdchangecnt - 1] = fd;
1823 } 2185 }
1824} 2186}
1825 2187
1826/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2188/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1827inline_speed void ecb_cold 2189inline_speed ecb_cold void
1828fd_kill (EV_P_ int fd) 2190fd_kill (EV_P_ int fd)
1829{ 2191{
1830 ev_io *w; 2192 ev_io *w;
1831 2193
1832 while ((w = (ev_io *)anfds [fd].head)) 2194 while ((w = (ev_io *)anfds [fd].head))
… …
1835 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2197 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1836 } 2198 }
1837} 2199}
1838 2200
1839/* check whether the given fd is actually valid, for error recovery */ 2201/* check whether the given fd is actually valid, for error recovery */
1840inline_size int ecb_cold 2202inline_size ecb_cold int
1841fd_valid (int fd) 2203fd_valid (int fd)
1842{ 2204{
1843#ifdef _WIN32 2205#ifdef _WIN32
1844 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2206 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1845#else 2207#else
1846 return fcntl (fd, F_GETFD) != -1; 2208 return fcntl (fd, F_GETFD) != -1;
1847#endif 2209#endif
1848} 2210}
1849 2211
1850/* called on EBADF to verify fds */ 2212/* called on EBADF to verify fds */
1851static void noinline ecb_cold 2213noinline ecb_cold
2214static void
1852fd_ebadf (EV_P) 2215fd_ebadf (EV_P)
1853{ 2216{
1854 int fd; 2217 int fd;
1855 2218
1856 for (fd = 0; fd < anfdmax; ++fd) 2219 for (fd = 0; fd < anfdmax; ++fd)
… …
1858 if (!fd_valid (fd) && errno == EBADF) 2221 if (!fd_valid (fd) && errno == EBADF)
1859 fd_kill (EV_A_ fd); 2222 fd_kill (EV_A_ fd);
1860} 2223}
1861 2224
1862/* called on ENOMEM in select/poll to kill some fds and retry */ 2225/* called on ENOMEM in select/poll to kill some fds and retry */
1863static void noinline ecb_cold 2226noinline ecb_cold
2227static void
1864fd_enomem (EV_P) 2228fd_enomem (EV_P)
1865{ 2229{
1866 int fd; 2230 int fd;
1867 2231
1868 for (fd = anfdmax; fd--; ) 2232 for (fd = anfdmax; fd--; )
… …
1872 break; 2236 break;
1873 } 2237 }
1874} 2238}
1875 2239
1876/* usually called after fork if backend needs to re-arm all fds from scratch */ 2240/* usually called after fork if backend needs to re-arm all fds from scratch */
1877static void noinline 2241noinline
2242static void
1878fd_rearm_all (EV_P) 2243fd_rearm_all (EV_P)
1879{ 2244{
1880 int fd; 2245 int fd;
1881 2246
1882 for (fd = 0; fd < anfdmax; ++fd) 2247 for (fd = 0; fd < anfdmax; ++fd)
… …
2063 2428
2064/*****************************************************************************/ 2429/*****************************************************************************/
2065 2430
2066#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2431#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2067 2432
2068static void noinline ecb_cold 2433noinline ecb_cold
2434static void
2069evpipe_init (EV_P) 2435evpipe_init (EV_P)
2070{ 2436{
2071 if (!ev_is_active (&pipe_w)) 2437 if (!ev_is_active (&pipe_w))
2072 { 2438 {
2073 int fds [2]; 2439 int fds [2];
… …
2084 while (pipe (fds)) 2450 while (pipe (fds))
2085 ev_syserr ("(libev) error creating signal/async pipe"); 2451 ev_syserr ("(libev) error creating signal/async pipe");
2086 2452
2087 fd_intern (fds [0]); 2453 fd_intern (fds [0]);
2088 } 2454 }
2089
2090 fd_intern (fds [1]);
2091 2455
2092 evpipe [0] = fds [0]; 2456 evpipe [0] = fds [0];
2093 2457
2094 if (evpipe [1] < 0) 2458 if (evpipe [1] < 0)
2095 evpipe [1] = fds [1]; /* first call, set write fd */ 2459 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2102 2466
2103 dup2 (fds [1], evpipe [1]); 2467 dup2 (fds [1], evpipe [1]);
2104 close (fds [1]); 2468 close (fds [1]);
2105 } 2469 }
2106 2470
2471 fd_intern (evpipe [1]);
2472
2107 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2473 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2108 ev_io_start (EV_A_ &pipe_w); 2474 ev_io_start (EV_A_ &pipe_w);
2109 ev_unref (EV_A); /* watcher should not keep loop alive */ 2475 ev_unref (EV_A); /* watcher should not keep loop alive */
2110 } 2476 }
2111} 2477}
… …
2144#endif 2510#endif
2145 { 2511 {
2146#ifdef _WIN32 2512#ifdef _WIN32
2147 WSABUF buf; 2513 WSABUF buf;
2148 DWORD sent; 2514 DWORD sent;
2149 buf.buf = &buf; 2515 buf.buf = (char *)&buf;
2150 buf.len = 1; 2516 buf.len = 1;
2151 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2517 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2152#else 2518#else
2153 write (evpipe [1], &(evpipe [1]), 1); 2519 write (evpipe [1], &(evpipe [1]), 1);
2154#endif 2520#endif
… …
2226} 2592}
2227 2593
2228/*****************************************************************************/ 2594/*****************************************************************************/
2229 2595
2230void 2596void
2231ev_feed_signal (int signum) EV_THROW 2597ev_feed_signal (int signum) EV_NOEXCEPT
2232{ 2598{
2233#if EV_MULTIPLICITY 2599#if EV_MULTIPLICITY
2600 EV_P;
2234 ECB_MEMORY_FENCE_ACQUIRE; 2601 ECB_MEMORY_FENCE_ACQUIRE;
2235 EV_P = signals [signum - 1].loop; 2602 EV_A = signals [signum - 1].loop;
2236 2603
2237 if (!EV_A) 2604 if (!EV_A)
2238 return; 2605 return;
2239#endif 2606#endif
2240 2607
… …
2250#endif 2617#endif
2251 2618
2252 ev_feed_signal (signum); 2619 ev_feed_signal (signum);
2253} 2620}
2254 2621
2255void noinline 2622noinline
2623void
2256ev_feed_signal_event (EV_P_ int signum) EV_THROW 2624ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2257{ 2625{
2258 WL w; 2626 WL w;
2259 2627
2260 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2628 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2261 return; 2629 return;
… …
2370# include "ev_kqueue.c" 2738# include "ev_kqueue.c"
2371#endif 2739#endif
2372#if EV_USE_EPOLL 2740#if EV_USE_EPOLL
2373# include "ev_epoll.c" 2741# include "ev_epoll.c"
2374#endif 2742#endif
2743#if EV_USE_LINUXAIO
2744# include "ev_linuxaio.c"
2745#endif
2375#if EV_USE_POLL 2746#if EV_USE_POLL
2376# include "ev_poll.c" 2747# include "ev_poll.c"
2377#endif 2748#endif
2378#if EV_USE_SELECT 2749#if EV_USE_SELECT
2379# include "ev_select.c" 2750# include "ev_select.c"
2380#endif 2751#endif
2381 2752
2382int ecb_cold 2753ecb_cold int
2383ev_version_major (void) EV_THROW 2754ev_version_major (void) EV_NOEXCEPT
2384{ 2755{
2385 return EV_VERSION_MAJOR; 2756 return EV_VERSION_MAJOR;
2386} 2757}
2387 2758
2388int ecb_cold 2759ecb_cold int
2389ev_version_minor (void) EV_THROW 2760ev_version_minor (void) EV_NOEXCEPT
2390{ 2761{
2391 return EV_VERSION_MINOR; 2762 return EV_VERSION_MINOR;
2392} 2763}
2393 2764
2394/* return true if we are running with elevated privileges and should ignore env variables */ 2765/* return true if we are running with elevated privileges and should ignore env variables */
2395int inline_size ecb_cold 2766inline_size ecb_cold int
2396enable_secure (void) 2767enable_secure (void)
2397{ 2768{
2398#ifdef _WIN32 2769#ifdef _WIN32
2399 return 0; 2770 return 0;
2400#else 2771#else
2401 return getuid () != geteuid () 2772 return getuid () != geteuid ()
2402 || getgid () != getegid (); 2773 || getgid () != getegid ();
2403#endif 2774#endif
2404} 2775}
2405 2776
2406unsigned int ecb_cold 2777ecb_cold
2778unsigned int
2407ev_supported_backends (void) EV_THROW 2779ev_supported_backends (void) EV_NOEXCEPT
2408{ 2780{
2409 unsigned int flags = 0; 2781 unsigned int flags = 0;
2410 2782
2411 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2783 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2412 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2784 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2413 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2785 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2786 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2414 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2787 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2415 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2788 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2416 2789
2417 return flags; 2790 return flags;
2418} 2791}
2419 2792
2420unsigned int ecb_cold 2793ecb_cold
2794unsigned int
2421ev_recommended_backends (void) EV_THROW 2795ev_recommended_backends (void) EV_NOEXCEPT
2422{ 2796{
2423 unsigned int flags = ev_supported_backends (); 2797 unsigned int flags = ev_supported_backends ();
2424 2798
2425#ifndef __NetBSD__ 2799#ifndef __NetBSD__
2426 /* kqueue is borked on everything but netbsd apparently */ 2800 /* kqueue is borked on everything but netbsd apparently */
… …
2434#endif 2808#endif
2435#ifdef __FreeBSD__ 2809#ifdef __FreeBSD__
2436 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2810 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2437#endif 2811#endif
2438 2812
2813 /* TODO: linuxaio is very experimental */
2814#if !EV_RECOMMEND_LINUXAIO
2815 flags &= ~EVBACKEND_LINUXAIO;
2816#endif
2817
2439 return flags; 2818 return flags;
2440} 2819}
2441 2820
2442unsigned int ecb_cold 2821ecb_cold
2822unsigned int
2443ev_embeddable_backends (void) EV_THROW 2823ev_embeddable_backends (void) EV_NOEXCEPT
2444{ 2824{
2445 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2825 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2446 2826
2447 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2827 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2448 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2828 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2450 2830
2451 return flags; 2831 return flags;
2452} 2832}
2453 2833
2454unsigned int 2834unsigned int
2455ev_backend (EV_P) EV_THROW 2835ev_backend (EV_P) EV_NOEXCEPT
2456{ 2836{
2457 return backend; 2837 return backend;
2458} 2838}
2459 2839
2460#if EV_FEATURE_API 2840#if EV_FEATURE_API
2461unsigned int 2841unsigned int
2462ev_iteration (EV_P) EV_THROW 2842ev_iteration (EV_P) EV_NOEXCEPT
2463{ 2843{
2464 return loop_count; 2844 return loop_count;
2465} 2845}
2466 2846
2467unsigned int 2847unsigned int
2468ev_depth (EV_P) EV_THROW 2848ev_depth (EV_P) EV_NOEXCEPT
2469{ 2849{
2470 return loop_depth; 2850 return loop_depth;
2471} 2851}
2472 2852
2473void 2853void
2474ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2854ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2475{ 2855{
2476 io_blocktime = interval; 2856 io_blocktime = interval;
2477} 2857}
2478 2858
2479void 2859void
2480ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2860ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2481{ 2861{
2482 timeout_blocktime = interval; 2862 timeout_blocktime = interval;
2483} 2863}
2484 2864
2485void 2865void
2486ev_set_userdata (EV_P_ void *data) EV_THROW 2866ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2487{ 2867{
2488 userdata = data; 2868 userdata = data;
2489} 2869}
2490 2870
2491void * 2871void *
2492ev_userdata (EV_P) EV_THROW 2872ev_userdata (EV_P) EV_NOEXCEPT
2493{ 2873{
2494 return userdata; 2874 return userdata;
2495} 2875}
2496 2876
2497void 2877void
2498ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2878ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2499{ 2879{
2500 invoke_cb = invoke_pending_cb; 2880 invoke_cb = invoke_pending_cb;
2501} 2881}
2502 2882
2503void 2883void
2504ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2884ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2505{ 2885{
2506 release_cb = release; 2886 release_cb = release;
2507 acquire_cb = acquire; 2887 acquire_cb = acquire;
2508} 2888}
2509#endif 2889#endif
2510 2890
2511/* initialise a loop structure, must be zero-initialised */ 2891/* initialise a loop structure, must be zero-initialised */
2512static void noinline ecb_cold 2892noinline ecb_cold
2893static void
2513loop_init (EV_P_ unsigned int flags) EV_THROW 2894loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2514{ 2895{
2515 if (!backend) 2896 if (!backend)
2516 { 2897 {
2517 origflags = flags; 2898 origflags = flags;
2518 2899
… …
2576 2957
2577 if (!(flags & EVBACKEND_MASK)) 2958 if (!(flags & EVBACKEND_MASK))
2578 flags |= ev_recommended_backends (); 2959 flags |= ev_recommended_backends ();
2579 2960
2580#if EV_USE_IOCP 2961#if EV_USE_IOCP
2581 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2962 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2582#endif 2963#endif
2583#if EV_USE_PORT 2964#if EV_USE_PORT
2584 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2965 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2585#endif 2966#endif
2586#if EV_USE_KQUEUE 2967#if EV_USE_KQUEUE
2587 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2968 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2969#endif
2970#if EV_USE_LINUXAIO
2971 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2588#endif 2972#endif
2589#if EV_USE_EPOLL 2973#if EV_USE_EPOLL
2590 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2974 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2591#endif 2975#endif
2592#if EV_USE_POLL 2976#if EV_USE_POLL
2593 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2977 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2594#endif 2978#endif
2595#if EV_USE_SELECT 2979#if EV_USE_SELECT
2596 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2980 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2597#endif 2981#endif
2598 2982
2599 ev_prepare_init (&pending_w, pendingcb); 2983 ev_prepare_init (&pending_w, pendingcb);
2600 2984
2601#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2985#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2604#endif 2988#endif
2605 } 2989 }
2606} 2990}
2607 2991
2608/* free up a loop structure */ 2992/* free up a loop structure */
2609void ecb_cold 2993ecb_cold
2994void
2610ev_loop_destroy (EV_P) 2995ev_loop_destroy (EV_P)
2611{ 2996{
2612 int i; 2997 int i;
2613 2998
2614#if EV_MULTIPLICITY 2999#if EV_MULTIPLICITY
… …
2655 3040
2656 if (backend_fd >= 0) 3041 if (backend_fd >= 0)
2657 close (backend_fd); 3042 close (backend_fd);
2658 3043
2659#if EV_USE_IOCP 3044#if EV_USE_IOCP
2660 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3045 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2661#endif 3046#endif
2662#if EV_USE_PORT 3047#if EV_USE_PORT
2663 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3048 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2664#endif 3049#endif
2665#if EV_USE_KQUEUE 3050#if EV_USE_KQUEUE
2666 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3051 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3052#endif
3053#if EV_USE_LINUXAIO
3054 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2667#endif 3055#endif
2668#if EV_USE_EPOLL 3056#if EV_USE_EPOLL
2669 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3057 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2670#endif 3058#endif
2671#if EV_USE_POLL 3059#if EV_USE_POLL
2672 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3060 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2673#endif 3061#endif
2674#if EV_USE_SELECT 3062#if EV_USE_SELECT
2675 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3063 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2676#endif 3064#endif
2677 3065
2678 for (i = NUMPRI; i--; ) 3066 for (i = NUMPRI; i--; )
2679 { 3067 {
2680 array_free (pending, [i]); 3068 array_free (pending, [i]);
… …
2722 3110
2723inline_size void 3111inline_size void
2724loop_fork (EV_P) 3112loop_fork (EV_P)
2725{ 3113{
2726#if EV_USE_PORT 3114#if EV_USE_PORT
2727 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3115 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2728#endif 3116#endif
2729#if EV_USE_KQUEUE 3117#if EV_USE_KQUEUE
2730 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3118 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3119#endif
3120#if EV_USE_LINUXAIO
3121 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2731#endif 3122#endif
2732#if EV_USE_EPOLL 3123#if EV_USE_EPOLL
2733 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3124 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2734#endif 3125#endif
2735#if EV_USE_INOTIFY 3126#if EV_USE_INOTIFY
2736 infy_fork (EV_A); 3127 infy_fork (EV_A);
2737#endif 3128#endif
2738 3129
2739#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2740 if (ev_is_active (&pipe_w)) 3131 if (ev_is_active (&pipe_w) && postfork != 2)
2741 { 3132 {
2742 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3133 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2743 3134
2744 ev_ref (EV_A); 3135 ev_ref (EV_A);
2745 ev_io_stop (EV_A_ &pipe_w); 3136 ev_io_stop (EV_A_ &pipe_w);
… …
2756 postfork = 0; 3147 postfork = 0;
2757} 3148}
2758 3149
2759#if EV_MULTIPLICITY 3150#if EV_MULTIPLICITY
2760 3151
3152ecb_cold
2761struct ev_loop * ecb_cold 3153struct ev_loop *
2762ev_loop_new (unsigned int flags) EV_THROW 3154ev_loop_new (unsigned int flags) EV_NOEXCEPT
2763{ 3155{
2764 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3156 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2765 3157
2766 memset (EV_A, 0, sizeof (struct ev_loop)); 3158 memset (EV_A, 0, sizeof (struct ev_loop));
2767 loop_init (EV_A_ flags); 3159 loop_init (EV_A_ flags);
… …
2774} 3166}
2775 3167
2776#endif /* multiplicity */ 3168#endif /* multiplicity */
2777 3169
2778#if EV_VERIFY 3170#if EV_VERIFY
2779static void noinline ecb_cold 3171noinline ecb_cold
3172static void
2780verify_watcher (EV_P_ W w) 3173verify_watcher (EV_P_ W w)
2781{ 3174{
2782 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3175 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2783 3176
2784 if (w->pending) 3177 if (w->pending)
2785 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3178 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2786} 3179}
2787 3180
2788static void noinline ecb_cold 3181noinline ecb_cold
3182static void
2789verify_heap (EV_P_ ANHE *heap, int N) 3183verify_heap (EV_P_ ANHE *heap, int N)
2790{ 3184{
2791 int i; 3185 int i;
2792 3186
2793 for (i = HEAP0; i < N + HEAP0; ++i) 3187 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2798 3192
2799 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3193 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2800 } 3194 }
2801} 3195}
2802 3196
2803static void noinline ecb_cold 3197noinline ecb_cold
3198static void
2804array_verify (EV_P_ W *ws, int cnt) 3199array_verify (EV_P_ W *ws, int cnt)
2805{ 3200{
2806 while (cnt--) 3201 while (cnt--)
2807 { 3202 {
2808 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3203 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2811} 3206}
2812#endif 3207#endif
2813 3208
2814#if EV_FEATURE_API 3209#if EV_FEATURE_API
2815void ecb_cold 3210void ecb_cold
2816ev_verify (EV_P) EV_THROW 3211ev_verify (EV_P) EV_NOEXCEPT
2817{ 3212{
2818#if EV_VERIFY 3213#if EV_VERIFY
2819 int i; 3214 int i;
2820 WL w, w2; 3215 WL w, w2;
2821 3216
… …
2897#endif 3292#endif
2898} 3293}
2899#endif 3294#endif
2900 3295
2901#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
3297ecb_cold
2902struct ev_loop * ecb_cold 3298struct ev_loop *
2903#else 3299#else
2904int 3300int
2905#endif 3301#endif
2906ev_default_loop (unsigned int flags) EV_THROW 3302ev_default_loop (unsigned int flags) EV_NOEXCEPT
2907{ 3303{
2908 if (!ev_default_loop_ptr) 3304 if (!ev_default_loop_ptr)
2909 { 3305 {
2910#if EV_MULTIPLICITY 3306#if EV_MULTIPLICITY
2911 EV_P = ev_default_loop_ptr = &default_loop_struct; 3307 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2930 3326
2931 return ev_default_loop_ptr; 3327 return ev_default_loop_ptr;
2932} 3328}
2933 3329
2934void 3330void
2935ev_loop_fork (EV_P) EV_THROW 3331ev_loop_fork (EV_P) EV_NOEXCEPT
2936{ 3332{
2937 postfork = 1; 3333 postfork = 1;
2938} 3334}
2939 3335
2940/*****************************************************************************/ 3336/*****************************************************************************/
… …
2944{ 3340{
2945 EV_CB_INVOKE ((W)w, revents); 3341 EV_CB_INVOKE ((W)w, revents);
2946} 3342}
2947 3343
2948unsigned int 3344unsigned int
2949ev_pending_count (EV_P) EV_THROW 3345ev_pending_count (EV_P) EV_NOEXCEPT
2950{ 3346{
2951 int pri; 3347 int pri;
2952 unsigned int count = 0; 3348 unsigned int count = 0;
2953 3349
2954 for (pri = NUMPRI; pri--; ) 3350 for (pri = NUMPRI; pri--; )
2955 count += pendingcnt [pri]; 3351 count += pendingcnt [pri];
2956 3352
2957 return count; 3353 return count;
2958} 3354}
2959 3355
2960void noinline 3356noinline
3357void
2961ev_invoke_pending (EV_P) 3358ev_invoke_pending (EV_P)
2962{ 3359{
2963 pendingpri = NUMPRI; 3360 pendingpri = NUMPRI;
2964 3361
2965 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3362 do
2966 { 3363 {
2967 --pendingpri; 3364 --pendingpri;
2968 3365
3366 /* pendingpri possibly gets modified in the inner loop */
2969 while (pendingcnt [pendingpri]) 3367 while (pendingcnt [pendingpri])
2970 { 3368 {
2971 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3369 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2972 3370
2973 p->w->pending = 0; 3371 p->w->pending = 0;
2974 EV_CB_INVOKE (p->w, p->events); 3372 EV_CB_INVOKE (p->w, p->events);
2975 EV_FREQUENT_CHECK; 3373 EV_FREQUENT_CHECK;
2976 } 3374 }
2977 } 3375 }
3376 while (pendingpri);
2978} 3377}
2979 3378
2980#if EV_IDLE_ENABLE 3379#if EV_IDLE_ENABLE
2981/* make idle watchers pending. this handles the "call-idle */ 3380/* make idle watchers pending. this handles the "call-idle */
2982/* only when higher priorities are idle" logic */ 3381/* only when higher priorities are idle" logic */
… …
3040 } 3439 }
3041} 3440}
3042 3441
3043#if EV_PERIODIC_ENABLE 3442#if EV_PERIODIC_ENABLE
3044 3443
3045static void noinline 3444noinline
3445static void
3046periodic_recalc (EV_P_ ev_periodic *w) 3446periodic_recalc (EV_P_ ev_periodic *w)
3047{ 3447{
3048 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3448 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3049 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3449 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3050 3450
… …
3108 } 3508 }
3109} 3509}
3110 3510
3111/* simply recalculate all periodics */ 3511/* simply recalculate all periodics */
3112/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3512/* TODO: maybe ensure that at least one event happens when jumping forward? */
3113static void noinline ecb_cold 3513noinline ecb_cold
3514static void
3114periodics_reschedule (EV_P) 3515periodics_reschedule (EV_P)
3115{ 3516{
3116 int i; 3517 int i;
3117 3518
3118 /* adjust periodics after time jump */ 3519 /* adjust periodics after time jump */
… …
3131 reheap (periodics, periodiccnt); 3532 reheap (periodics, periodiccnt);
3132} 3533}
3133#endif 3534#endif
3134 3535
3135/* adjust all timers by a given offset */ 3536/* adjust all timers by a given offset */
3136static void noinline ecb_cold 3537noinline ecb_cold
3538static void
3137timers_reschedule (EV_P_ ev_tstamp adjust) 3539timers_reschedule (EV_P_ ev_tstamp adjust)
3138{ 3540{
3139 int i; 3541 int i;
3140 3542
3141 for (i = 0; i < timercnt; ++i) 3543 for (i = 0; i < timercnt; ++i)
… …
3388 3790
3389 return activecnt; 3791 return activecnt;
3390} 3792}
3391 3793
3392void 3794void
3393ev_break (EV_P_ int how) EV_THROW 3795ev_break (EV_P_ int how) EV_NOEXCEPT
3394{ 3796{
3395 loop_done = how; 3797 loop_done = how;
3396} 3798}
3397 3799
3398void 3800void
3399ev_ref (EV_P) EV_THROW 3801ev_ref (EV_P) EV_NOEXCEPT
3400{ 3802{
3401 ++activecnt; 3803 ++activecnt;
3402} 3804}
3403 3805
3404void 3806void
3405ev_unref (EV_P) EV_THROW 3807ev_unref (EV_P) EV_NOEXCEPT
3406{ 3808{
3407 --activecnt; 3809 --activecnt;
3408} 3810}
3409 3811
3410void 3812void
3411ev_now_update (EV_P) EV_THROW 3813ev_now_update (EV_P) EV_NOEXCEPT
3412{ 3814{
3413 time_update (EV_A_ 1e100); 3815 time_update (EV_A_ 1e100);
3414} 3816}
3415 3817
3416void 3818void
3417ev_suspend (EV_P) EV_THROW 3819ev_suspend (EV_P) EV_NOEXCEPT
3418{ 3820{
3419 ev_now_update (EV_A); 3821 ev_now_update (EV_A);
3420} 3822}
3421 3823
3422void 3824void
3423ev_resume (EV_P) EV_THROW 3825ev_resume (EV_P) EV_NOEXCEPT
3424{ 3826{
3425 ev_tstamp mn_prev = mn_now; 3827 ev_tstamp mn_prev = mn_now;
3426 3828
3427 ev_now_update (EV_A); 3829 ev_now_update (EV_A);
3428 timers_reschedule (EV_A_ mn_now - mn_prev); 3830 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3467 w->pending = 0; 3869 w->pending = 0;
3468 } 3870 }
3469} 3871}
3470 3872
3471int 3873int
3472ev_clear_pending (EV_P_ void *w) EV_THROW 3874ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3473{ 3875{
3474 W w_ = (W)w; 3876 W w_ = (W)w;
3475 int pending = w_->pending; 3877 int pending = w_->pending;
3476 3878
3477 if (expect_true (pending)) 3879 if (expect_true (pending))
… …
3509 w->active = 0; 3911 w->active = 0;
3510} 3912}
3511 3913
3512/*****************************************************************************/ 3914/*****************************************************************************/
3513 3915
3514void noinline 3916noinline
3917void
3515ev_io_start (EV_P_ ev_io *w) EV_THROW 3918ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3516{ 3919{
3517 int fd = w->fd; 3920 int fd = w->fd;
3518 3921
3519 if (expect_false (ev_is_active (w))) 3922 if (expect_false (ev_is_active (w)))
3520 return; 3923 return;
… …
3523 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3926 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3524 3927
3525 EV_FREQUENT_CHECK; 3928 EV_FREQUENT_CHECK;
3526 3929
3527 ev_start (EV_A_ (W)w, 1); 3930 ev_start (EV_A_ (W)w, 1);
3528 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3931 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3529 wlist_add (&anfds[fd].head, (WL)w); 3932 wlist_add (&anfds[fd].head, (WL)w);
3530 3933
3531 /* common bug, apparently */ 3934 /* common bug, apparently */
3532 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 3935 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3533 3936
… …
3535 w->events &= ~EV__IOFDSET; 3938 w->events &= ~EV__IOFDSET;
3536 3939
3537 EV_FREQUENT_CHECK; 3940 EV_FREQUENT_CHECK;
3538} 3941}
3539 3942
3540void noinline 3943noinline
3944void
3541ev_io_stop (EV_P_ ev_io *w) EV_THROW 3945ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3542{ 3946{
3543 clear_pending (EV_A_ (W)w); 3947 clear_pending (EV_A_ (W)w);
3544 if (expect_false (!ev_is_active (w))) 3948 if (expect_false (!ev_is_active (w)))
3545 return; 3949 return;
3546 3950
… …
3554 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3958 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3555 3959
3556 EV_FREQUENT_CHECK; 3960 EV_FREQUENT_CHECK;
3557} 3961}
3558 3962
3559void noinline 3963noinline
3964void
3560ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3965ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3561{ 3966{
3562 if (expect_false (ev_is_active (w))) 3967 if (expect_false (ev_is_active (w)))
3563 return; 3968 return;
3564 3969
3565 ev_at (w) += mn_now; 3970 ev_at (w) += mn_now;
… …
3568 3973
3569 EV_FREQUENT_CHECK; 3974 EV_FREQUENT_CHECK;
3570 3975
3571 ++timercnt; 3976 ++timercnt;
3572 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3977 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3573 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3978 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3574 ANHE_w (timers [ev_active (w)]) = (WT)w; 3979 ANHE_w (timers [ev_active (w)]) = (WT)w;
3575 ANHE_at_cache (timers [ev_active (w)]); 3980 ANHE_at_cache (timers [ev_active (w)]);
3576 upheap (timers, ev_active (w)); 3981 upheap (timers, ev_active (w));
3577 3982
3578 EV_FREQUENT_CHECK; 3983 EV_FREQUENT_CHECK;
3579 3984
3580 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3985 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3581} 3986}
3582 3987
3583void noinline 3988noinline
3989void
3584ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3990ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3585{ 3991{
3586 clear_pending (EV_A_ (W)w); 3992 clear_pending (EV_A_ (W)w);
3587 if (expect_false (!ev_is_active (w))) 3993 if (expect_false (!ev_is_active (w)))
3588 return; 3994 return;
3589 3995
… …
3608 ev_stop (EV_A_ (W)w); 4014 ev_stop (EV_A_ (W)w);
3609 4015
3610 EV_FREQUENT_CHECK; 4016 EV_FREQUENT_CHECK;
3611} 4017}
3612 4018
3613void noinline 4019noinline
4020void
3614ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4021ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3615{ 4022{
3616 EV_FREQUENT_CHECK; 4023 EV_FREQUENT_CHECK;
3617 4024
3618 clear_pending (EV_A_ (W)w); 4025 clear_pending (EV_A_ (W)w);
3619 4026
… …
3636 4043
3637 EV_FREQUENT_CHECK; 4044 EV_FREQUENT_CHECK;
3638} 4045}
3639 4046
3640ev_tstamp 4047ev_tstamp
3641ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4048ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3642{ 4049{
3643 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4050 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3644} 4051}
3645 4052
3646#if EV_PERIODIC_ENABLE 4053#if EV_PERIODIC_ENABLE
3647void noinline 4054noinline
4055void
3648ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4056ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3649{ 4057{
3650 if (expect_false (ev_is_active (w))) 4058 if (expect_false (ev_is_active (w)))
3651 return; 4059 return;
3652 4060
3653 if (w->reschedule_cb) 4061 if (w->reschedule_cb)
… …
3662 4070
3663 EV_FREQUENT_CHECK; 4071 EV_FREQUENT_CHECK;
3664 4072
3665 ++periodiccnt; 4073 ++periodiccnt;
3666 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4074 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3667 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4075 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3668 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4076 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3669 ANHE_at_cache (periodics [ev_active (w)]); 4077 ANHE_at_cache (periodics [ev_active (w)]);
3670 upheap (periodics, ev_active (w)); 4078 upheap (periodics, ev_active (w));
3671 4079
3672 EV_FREQUENT_CHECK; 4080 EV_FREQUENT_CHECK;
3673 4081
3674 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4082 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3675} 4083}
3676 4084
3677void noinline 4085noinline
4086void
3678ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4087ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3679{ 4088{
3680 clear_pending (EV_A_ (W)w); 4089 clear_pending (EV_A_ (W)w);
3681 if (expect_false (!ev_is_active (w))) 4090 if (expect_false (!ev_is_active (w)))
3682 return; 4091 return;
3683 4092
… …
3700 ev_stop (EV_A_ (W)w); 4109 ev_stop (EV_A_ (W)w);
3701 4110
3702 EV_FREQUENT_CHECK; 4111 EV_FREQUENT_CHECK;
3703} 4112}
3704 4113
3705void noinline 4114noinline
4115void
3706ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4116ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3707{ 4117{
3708 /* TODO: use adjustheap and recalculation */ 4118 /* TODO: use adjustheap and recalculation */
3709 ev_periodic_stop (EV_A_ w); 4119 ev_periodic_stop (EV_A_ w);
3710 ev_periodic_start (EV_A_ w); 4120 ev_periodic_start (EV_A_ w);
3711} 4121}
… …
3715# define SA_RESTART 0 4125# define SA_RESTART 0
3716#endif 4126#endif
3717 4127
3718#if EV_SIGNAL_ENABLE 4128#if EV_SIGNAL_ENABLE
3719 4129
3720void noinline 4130noinline
4131void
3721ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4132ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3722{ 4133{
3723 if (expect_false (ev_is_active (w))) 4134 if (expect_false (ev_is_active (w)))
3724 return; 4135 return;
3725 4136
3726 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4137 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3797 } 4208 }
3798 4209
3799 EV_FREQUENT_CHECK; 4210 EV_FREQUENT_CHECK;
3800} 4211}
3801 4212
3802void noinline 4213noinline
4214void
3803ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4215ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3804{ 4216{
3805 clear_pending (EV_A_ (W)w); 4217 clear_pending (EV_A_ (W)w);
3806 if (expect_false (!ev_is_active (w))) 4218 if (expect_false (!ev_is_active (w)))
3807 return; 4219 return;
3808 4220
… …
3839#endif 4251#endif
3840 4252
3841#if EV_CHILD_ENABLE 4253#if EV_CHILD_ENABLE
3842 4254
3843void 4255void
3844ev_child_start (EV_P_ ev_child *w) EV_THROW 4256ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3845{ 4257{
3846#if EV_MULTIPLICITY 4258#if EV_MULTIPLICITY
3847 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4259 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3848#endif 4260#endif
3849 if (expect_false (ev_is_active (w))) 4261 if (expect_false (ev_is_active (w)))
… …
3856 4268
3857 EV_FREQUENT_CHECK; 4269 EV_FREQUENT_CHECK;
3858} 4270}
3859 4271
3860void 4272void
3861ev_child_stop (EV_P_ ev_child *w) EV_THROW 4273ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3862{ 4274{
3863 clear_pending (EV_A_ (W)w); 4275 clear_pending (EV_A_ (W)w);
3864 if (expect_false (!ev_is_active (w))) 4276 if (expect_false (!ev_is_active (w)))
3865 return; 4277 return;
3866 4278
… …
3883 4295
3884#define DEF_STAT_INTERVAL 5.0074891 4296#define DEF_STAT_INTERVAL 5.0074891
3885#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4297#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3886#define MIN_STAT_INTERVAL 0.1074891 4298#define MIN_STAT_INTERVAL 0.1074891
3887 4299
3888static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4300noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3889 4301
3890#if EV_USE_INOTIFY 4302#if EV_USE_INOTIFY
3891 4303
3892/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4304/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3893# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4305# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3894 4306
3895static void noinline 4307noinline
4308static void
3896infy_add (EV_P_ ev_stat *w) 4309infy_add (EV_P_ ev_stat *w)
3897{ 4310{
3898 w->wd = inotify_add_watch (fs_fd, w->path, 4311 w->wd = inotify_add_watch (fs_fd, w->path,
3899 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4312 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3900 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4313 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3964 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4377 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3965 ev_timer_again (EV_A_ &w->timer); 4378 ev_timer_again (EV_A_ &w->timer);
3966 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4379 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3967} 4380}
3968 4381
3969static void noinline 4382noinline
4383static void
3970infy_del (EV_P_ ev_stat *w) 4384infy_del (EV_P_ ev_stat *w)
3971{ 4385{
3972 int slot; 4386 int slot;
3973 int wd = w->wd; 4387 int wd = w->wd;
3974 4388
… …
3981 4395
3982 /* remove this watcher, if others are watching it, they will rearm */ 4396 /* remove this watcher, if others are watching it, they will rearm */
3983 inotify_rm_watch (fs_fd, wd); 4397 inotify_rm_watch (fs_fd, wd);
3984} 4398}
3985 4399
3986static void noinline 4400noinline
4401static void
3987infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4402infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3988{ 4403{
3989 if (slot < 0) 4404 if (slot < 0)
3990 /* overflow, need to check for all hash slots */ 4405 /* overflow, need to check for all hash slots */
3991 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4406 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4027 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4442 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4028 ofs += sizeof (struct inotify_event) + ev->len; 4443 ofs += sizeof (struct inotify_event) + ev->len;
4029 } 4444 }
4030} 4445}
4031 4446
4032inline_size void ecb_cold 4447inline_size ecb_cold
4448void
4033ev_check_2625 (EV_P) 4449ev_check_2625 (EV_P)
4034{ 4450{
4035 /* kernels < 2.6.25 are borked 4451 /* kernels < 2.6.25 are borked
4036 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4452 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4037 */ 4453 */
… …
4127#else 4543#else
4128# define EV_LSTAT(p,b) lstat (p, b) 4544# define EV_LSTAT(p,b) lstat (p, b)
4129#endif 4545#endif
4130 4546
4131void 4547void
4132ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4548ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4133{ 4549{
4134 if (lstat (w->path, &w->attr) < 0) 4550 if (lstat (w->path, &w->attr) < 0)
4135 w->attr.st_nlink = 0; 4551 w->attr.st_nlink = 0;
4136 else if (!w->attr.st_nlink) 4552 else if (!w->attr.st_nlink)
4137 w->attr.st_nlink = 1; 4553 w->attr.st_nlink = 1;
4138} 4554}
4139 4555
4140static void noinline 4556noinline
4557static void
4141stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4558stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4142{ 4559{
4143 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4560 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4144 4561
4145 ev_statdata prev = w->attr; 4562 ev_statdata prev = w->attr;
… …
4176 ev_feed_event (EV_A_ w, EV_STAT); 4593 ev_feed_event (EV_A_ w, EV_STAT);
4177 } 4594 }
4178} 4595}
4179 4596
4180void 4597void
4181ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4598ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4182{ 4599{
4183 if (expect_false (ev_is_active (w))) 4600 if (expect_false (ev_is_active (w)))
4184 return; 4601 return;
4185 4602
4186 ev_stat_stat (EV_A_ w); 4603 ev_stat_stat (EV_A_ w);
… …
4207 4624
4208 EV_FREQUENT_CHECK; 4625 EV_FREQUENT_CHECK;
4209} 4626}
4210 4627
4211void 4628void
4212ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4629ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4213{ 4630{
4214 clear_pending (EV_A_ (W)w); 4631 clear_pending (EV_A_ (W)w);
4215 if (expect_false (!ev_is_active (w))) 4632 if (expect_false (!ev_is_active (w)))
4216 return; 4633 return;
4217 4634
… …
4233} 4650}
4234#endif 4651#endif
4235 4652
4236#if EV_IDLE_ENABLE 4653#if EV_IDLE_ENABLE
4237void 4654void
4238ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4655ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4239{ 4656{
4240 if (expect_false (ev_is_active (w))) 4657 if (expect_false (ev_is_active (w)))
4241 return; 4658 return;
4242 4659
4243 pri_adjust (EV_A_ (W)w); 4660 pri_adjust (EV_A_ (W)w);
… …
4248 int active = ++idlecnt [ABSPRI (w)]; 4665 int active = ++idlecnt [ABSPRI (w)];
4249 4666
4250 ++idleall; 4667 ++idleall;
4251 ev_start (EV_A_ (W)w, active); 4668 ev_start (EV_A_ (W)w, active);
4252 4669
4253 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4670 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4254 idles [ABSPRI (w)][active - 1] = w; 4671 idles [ABSPRI (w)][active - 1] = w;
4255 } 4672 }
4256 4673
4257 EV_FREQUENT_CHECK; 4674 EV_FREQUENT_CHECK;
4258} 4675}
4259 4676
4260void 4677void
4261ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4678ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4262{ 4679{
4263 clear_pending (EV_A_ (W)w); 4680 clear_pending (EV_A_ (W)w);
4264 if (expect_false (!ev_is_active (w))) 4681 if (expect_false (!ev_is_active (w)))
4265 return; 4682 return;
4266 4683
… …
4280} 4697}
4281#endif 4698#endif
4282 4699
4283#if EV_PREPARE_ENABLE 4700#if EV_PREPARE_ENABLE
4284void 4701void
4285ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4702ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4286{ 4703{
4287 if (expect_false (ev_is_active (w))) 4704 if (expect_false (ev_is_active (w)))
4288 return; 4705 return;
4289 4706
4290 EV_FREQUENT_CHECK; 4707 EV_FREQUENT_CHECK;
4291 4708
4292 ev_start (EV_A_ (W)w, ++preparecnt); 4709 ev_start (EV_A_ (W)w, ++preparecnt);
4293 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4710 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4294 prepares [preparecnt - 1] = w; 4711 prepares [preparecnt - 1] = w;
4295 4712
4296 EV_FREQUENT_CHECK; 4713 EV_FREQUENT_CHECK;
4297} 4714}
4298 4715
4299void 4716void
4300ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4717ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4301{ 4718{
4302 clear_pending (EV_A_ (W)w); 4719 clear_pending (EV_A_ (W)w);
4303 if (expect_false (!ev_is_active (w))) 4720 if (expect_false (!ev_is_active (w)))
4304 return; 4721 return;
4305 4722
… …
4318} 4735}
4319#endif 4736#endif
4320 4737
4321#if EV_CHECK_ENABLE 4738#if EV_CHECK_ENABLE
4322void 4739void
4323ev_check_start (EV_P_ ev_check *w) EV_THROW 4740ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4324{ 4741{
4325 if (expect_false (ev_is_active (w))) 4742 if (expect_false (ev_is_active (w)))
4326 return; 4743 return;
4327 4744
4328 EV_FREQUENT_CHECK; 4745 EV_FREQUENT_CHECK;
4329 4746
4330 ev_start (EV_A_ (W)w, ++checkcnt); 4747 ev_start (EV_A_ (W)w, ++checkcnt);
4331 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4748 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4332 checks [checkcnt - 1] = w; 4749 checks [checkcnt - 1] = w;
4333 4750
4334 EV_FREQUENT_CHECK; 4751 EV_FREQUENT_CHECK;
4335} 4752}
4336 4753
4337void 4754void
4338ev_check_stop (EV_P_ ev_check *w) EV_THROW 4755ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4339{ 4756{
4340 clear_pending (EV_A_ (W)w); 4757 clear_pending (EV_A_ (W)w);
4341 if (expect_false (!ev_is_active (w))) 4758 if (expect_false (!ev_is_active (w)))
4342 return; 4759 return;
4343 4760
… …
4355 EV_FREQUENT_CHECK; 4772 EV_FREQUENT_CHECK;
4356} 4773}
4357#endif 4774#endif
4358 4775
4359#if EV_EMBED_ENABLE 4776#if EV_EMBED_ENABLE
4360void noinline 4777noinline
4778void
4361ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4779ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4362{ 4780{
4363 ev_run (w->other, EVRUN_NOWAIT); 4781 ev_run (w->other, EVRUN_NOWAIT);
4364} 4782}
4365 4783
4366static void 4784static void
… …
4414 ev_idle_stop (EV_A_ idle); 4832 ev_idle_stop (EV_A_ idle);
4415} 4833}
4416#endif 4834#endif
4417 4835
4418void 4836void
4419ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4837ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4420{ 4838{
4421 if (expect_false (ev_is_active (w))) 4839 if (expect_false (ev_is_active (w)))
4422 return; 4840 return;
4423 4841
4424 { 4842 {
… …
4445 4863
4446 EV_FREQUENT_CHECK; 4864 EV_FREQUENT_CHECK;
4447} 4865}
4448 4866
4449void 4867void
4450ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4868ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4451{ 4869{
4452 clear_pending (EV_A_ (W)w); 4870 clear_pending (EV_A_ (W)w);
4453 if (expect_false (!ev_is_active (w))) 4871 if (expect_false (!ev_is_active (w)))
4454 return; 4872 return;
4455 4873
… …
4465} 4883}
4466#endif 4884#endif
4467 4885
4468#if EV_FORK_ENABLE 4886#if EV_FORK_ENABLE
4469void 4887void
4470ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4888ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4471{ 4889{
4472 if (expect_false (ev_is_active (w))) 4890 if (expect_false (ev_is_active (w)))
4473 return; 4891 return;
4474 4892
4475 EV_FREQUENT_CHECK; 4893 EV_FREQUENT_CHECK;
4476 4894
4477 ev_start (EV_A_ (W)w, ++forkcnt); 4895 ev_start (EV_A_ (W)w, ++forkcnt);
4478 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4896 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4479 forks [forkcnt - 1] = w; 4897 forks [forkcnt - 1] = w;
4480 4898
4481 EV_FREQUENT_CHECK; 4899 EV_FREQUENT_CHECK;
4482} 4900}
4483 4901
4484void 4902void
4485ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4903ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4486{ 4904{
4487 clear_pending (EV_A_ (W)w); 4905 clear_pending (EV_A_ (W)w);
4488 if (expect_false (!ev_is_active (w))) 4906 if (expect_false (!ev_is_active (w)))
4489 return; 4907 return;
4490 4908
… …
4503} 4921}
4504#endif 4922#endif
4505 4923
4506#if EV_CLEANUP_ENABLE 4924#if EV_CLEANUP_ENABLE
4507void 4925void
4508ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4926ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4509{ 4927{
4510 if (expect_false (ev_is_active (w))) 4928 if (expect_false (ev_is_active (w)))
4511 return; 4929 return;
4512 4930
4513 EV_FREQUENT_CHECK; 4931 EV_FREQUENT_CHECK;
4514 4932
4515 ev_start (EV_A_ (W)w, ++cleanupcnt); 4933 ev_start (EV_A_ (W)w, ++cleanupcnt);
4516 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4934 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4517 cleanups [cleanupcnt - 1] = w; 4935 cleanups [cleanupcnt - 1] = w;
4518 4936
4519 /* cleanup watchers should never keep a refcount on the loop */ 4937 /* cleanup watchers should never keep a refcount on the loop */
4520 ev_unref (EV_A); 4938 ev_unref (EV_A);
4521 EV_FREQUENT_CHECK; 4939 EV_FREQUENT_CHECK;
4522} 4940}
4523 4941
4524void 4942void
4525ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4943ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4526{ 4944{
4527 clear_pending (EV_A_ (W)w); 4945 clear_pending (EV_A_ (W)w);
4528 if (expect_false (!ev_is_active (w))) 4946 if (expect_false (!ev_is_active (w)))
4529 return; 4947 return;
4530 4948
… …
4544} 4962}
4545#endif 4963#endif
4546 4964
4547#if EV_ASYNC_ENABLE 4965#if EV_ASYNC_ENABLE
4548void 4966void
4549ev_async_start (EV_P_ ev_async *w) EV_THROW 4967ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4550{ 4968{
4551 if (expect_false (ev_is_active (w))) 4969 if (expect_false (ev_is_active (w)))
4552 return; 4970 return;
4553 4971
4554 w->sent = 0; 4972 w->sent = 0;
… …
4556 evpipe_init (EV_A); 4974 evpipe_init (EV_A);
4557 4975
4558 EV_FREQUENT_CHECK; 4976 EV_FREQUENT_CHECK;
4559 4977
4560 ev_start (EV_A_ (W)w, ++asynccnt); 4978 ev_start (EV_A_ (W)w, ++asynccnt);
4561 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4979 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4562 asyncs [asynccnt - 1] = w; 4980 asyncs [asynccnt - 1] = w;
4563 4981
4564 EV_FREQUENT_CHECK; 4982 EV_FREQUENT_CHECK;
4565} 4983}
4566 4984
4567void 4985void
4568ev_async_stop (EV_P_ ev_async *w) EV_THROW 4986ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4569{ 4987{
4570 clear_pending (EV_A_ (W)w); 4988 clear_pending (EV_A_ (W)w);
4571 if (expect_false (!ev_is_active (w))) 4989 if (expect_false (!ev_is_active (w)))
4572 return; 4990 return;
4573 4991
… …
4584 5002
4585 EV_FREQUENT_CHECK; 5003 EV_FREQUENT_CHECK;
4586} 5004}
4587 5005
4588void 5006void
4589ev_async_send (EV_P_ ev_async *w) EV_THROW 5007ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4590{ 5008{
4591 w->sent = 1; 5009 w->sent = 1;
4592 evpipe_write (EV_A_ &async_pending); 5010 evpipe_write (EV_A_ &async_pending);
4593} 5011}
4594#endif 5012#endif
… …
4631 5049
4632 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5050 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4633} 5051}
4634 5052
4635void 5053void
4636ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5054ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4637{ 5055{
4638 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5056 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4639
4640 if (expect_false (!once))
4641 {
4642 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4643 return;
4644 }
4645 5057
4646 once->cb = cb; 5058 once->cb = cb;
4647 once->arg = arg; 5059 once->arg = arg;
4648 5060
4649 ev_init (&once->io, once_cb_io); 5061 ev_init (&once->io, once_cb_io);
… …
4662} 5074}
4663 5075
4664/*****************************************************************************/ 5076/*****************************************************************************/
4665 5077
4666#if EV_WALK_ENABLE 5078#if EV_WALK_ENABLE
4667void ecb_cold 5079ecb_cold
5080void
4668ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5081ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4669{ 5082{
4670 int i, j; 5083 int i, j;
4671 ev_watcher_list *wl, *wn; 5084 ev_watcher_list *wl, *wn;
4672 5085
4673 if (types & (EV_IO | EV_EMBED)) 5086 if (types & (EV_IO | EV_EMBED))

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