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Comparing libev/ev.c (file contents):
Revision 1.463 by root, Thu Jan 16 11:51:05 2014 UTC vs.
Revision 1.512 by root, Fri Nov 22 19:54:38 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 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
… …
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 118# endif
119 119
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
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
165#endif 183#endif
184
185/* OS X, in its infinite idiocy, actually HARDCODES
186 * a limit of 1024 into their select. Where people have brains,
187 * OS X engineers apparently have a vacuum. Or maybe they were
188 * ordered to have a vacuum, or they do anything for money.
189 * This might help. Or not.
190 * Note that this must be defined early, as other include files
191 * will rely on this define as well.
192 */
193#define _DARWIN_UNLIMITED_SELECT 1
166 194
167#include <stdlib.h> 195#include <stdlib.h>
168#include <string.h> 196#include <string.h>
169#include <fcntl.h> 197#include <fcntl.h>
170#include <stddef.h> 198#include <stddef.h>
… …
208# ifndef EV_SELECT_IS_WINSOCKET 236# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 237# define EV_SELECT_IS_WINSOCKET 1
210# endif 238# endif
211# undef EV_AVOID_STDIO 239# undef EV_AVOID_STDIO
212#endif 240#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
221 241
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 242/* this block tries to deduce configuration from header-defined symbols and defaults */
223 243
224/* try to deduce the maximum number of signals on this platform */ 244/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 245#if defined EV_NSIG
… …
256# else 276# else
257# define EV_USE_CLOCK_SYSCALL 0 277# define EV_USE_CLOCK_SYSCALL 0
258# endif 278# endif
259#endif 279#endif
260 280
281#if !(_POSIX_TIMERS > 0)
282# ifndef EV_USE_MONOTONIC
283# define EV_USE_MONOTONIC 0
284# endif
285# ifndef EV_USE_REALTIME
286# define EV_USE_REALTIME 0
287# endif
288#endif
289
261#ifndef EV_USE_MONOTONIC 290#ifndef EV_USE_MONOTONIC
262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 291# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263# define EV_USE_MONOTONIC EV_FEATURE_OS 292# define EV_USE_MONOTONIC EV_FEATURE_OS
264# else 293# else
265# define EV_USE_MONOTONIC 0 294# define EV_USE_MONOTONIC 0
… …
304 333
305#ifndef EV_USE_PORT 334#ifndef EV_USE_PORT
306# define EV_USE_PORT 0 335# define EV_USE_PORT 0
307#endif 336#endif
308 337
338#ifndef EV_USE_LINUXAIO
339# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
340# define EV_USE_LINUXAIO 1
341# else
342# define EV_USE_LINUXAIO 0
343# endif
344#endif
345
346#ifndef EV_USE_IOURING
347# if __linux /* later checks might disable again */
348# define EV_USE_IOURING 1
349# else
350# define EV_USE_IOURING 0
351# endif
352#endif
353
309#ifndef EV_USE_INOTIFY 354#ifndef EV_USE_INOTIFY
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 355# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
311# define EV_USE_INOTIFY EV_FEATURE_OS 356# define EV_USE_INOTIFY EV_FEATURE_OS
312# else 357# else
313# define EV_USE_INOTIFY 0 358# define EV_USE_INOTIFY 0
… …
354 399
355#ifndef EV_HEAP_CACHE_AT 400#ifndef EV_HEAP_CACHE_AT
356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 401# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif 402#endif
358 403
359#ifdef ANDROID 404#ifdef __ANDROID__
360/* supposedly, android doesn't typedef fd_mask */ 405/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT 406# undef EV_USE_SELECT
362# define EV_USE_SELECT 0 407# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 408/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL 409# undef EV_USE_CLOCK_SYSCALL
… …
378# include <sys/syscall.h> 423# include <sys/syscall.h>
379# ifdef SYS_clock_gettime 424# ifdef SYS_clock_gettime
380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 425# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
381# undef EV_USE_MONOTONIC 426# undef EV_USE_MONOTONIC
382# define EV_USE_MONOTONIC 1 427# define EV_USE_MONOTONIC 1
428# define EV_NEED_SYSCALL 1
383# else 429# else
384# undef EV_USE_CLOCK_SYSCALL 430# undef EV_USE_CLOCK_SYSCALL
385# define EV_USE_CLOCK_SYSCALL 0 431# define EV_USE_CLOCK_SYSCALL 0
386# endif 432# endif
387#endif 433#endif
… …
401#if !EV_STAT_ENABLE 447#if !EV_STAT_ENABLE
402# undef EV_USE_INOTIFY 448# undef EV_USE_INOTIFY
403# define EV_USE_INOTIFY 0 449# define EV_USE_INOTIFY 0
404#endif 450#endif
405 451
452#if __linux && EV_USE_IOURING
453# include <linux/version.h>
454# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
455# undef EV_USE_IOURING
456# define EV_USE_IOURING 0
457# endif
458#endif
459
406#if !EV_USE_NANOSLEEP 460#if !EV_USE_NANOSLEEP
407/* hp-ux has it in sys/time.h, which we unconditionally include above */ 461/* hp-ux has it in sys/time.h, which we unconditionally include above */
408# if !defined _WIN32 && !defined __hpux 462# if !defined _WIN32 && !defined __hpux
409# include <sys/select.h> 463# include <sys/select.h>
464# endif
465#endif
466
467#if EV_USE_LINUXAIO
468# include <sys/syscall.h>
469# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
470# define EV_NEED_SYSCALL 1
471# else
472# undef EV_USE_LINUXAIO
473# define EV_USE_LINUXAIO 0
474# endif
475#endif
476
477#if EV_USE_IOURING
478# include <sys/syscall.h>
479# if !SYS_io_uring_setup && __linux && !__alpha
480# define SYS_io_uring_setup 425
481# define SYS_io_uring_enter 426
482# define SYS_io_uring_wregister 427
483# endif
484# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
485# define EV_NEED_SYSCALL 1
486# else
487# undef EV_USE_IOURING
488# define EV_USE_IOURING 0
410# endif 489# endif
411#endif 490#endif
412 491
413#if EV_USE_INOTIFY 492#if EV_USE_INOTIFY
414# include <sys/statfs.h> 493# include <sys/statfs.h>
… …
456 uint32_t ssi_signo; 535 uint32_t ssi_signo;
457 char pad[128 - sizeof (uint32_t)]; 536 char pad[128 - sizeof (uint32_t)];
458}; 537};
459#endif 538#endif
460 539
461/**/ 540/*****************************************************************************/
462 541
463#if EV_VERIFY >= 3 542#if EV_VERIFY >= 3
464# define EV_FREQUENT_CHECK ev_verify (EV_A) 543# define EV_FREQUENT_CHECK ev_verify (EV_A)
465#else 544#else
466# define EV_FREQUENT_CHECK do { } while (0) 545# define EV_FREQUENT_CHECK do { } while (0)
… …
471 * This value is good at least till the year 4000. 550 * This value is good at least till the year 4000.
472 */ 551 */
473#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 552#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
474/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 553/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
475 554
476#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 555#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
477#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 556#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
478 557
558/* find a portable timestamp that is "always" in the future but fits into time_t.
559 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
560 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
561#define EV_TSTAMP_HUGE \
562 (sizeof (time_t) >= 8 ? 10000000000000. \
563 : 0 < (time_t)4294967295 ? 4294967295. \
564 : 2147483647.) \
565
566#ifndef EV_TS_CONST
567# define EV_TS_CONST(nv) nv
568# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
569# define EV_TS_FROM_USEC(us) us * 1e-6
479#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 570# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
480#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 571# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
572# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
573# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
574#endif
481 575
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 576/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */ 577/* ECB.H BEGIN */
484/* 578/*
485 * libecb - http://software.schmorp.de/pkg/libecb 579 * libecb - http://software.schmorp.de/pkg/libecb
486 * 580 *
487 * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> 581 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 582 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 583 * All rights reserved.
490 * 584 *
491 * Redistribution and use in source and binary forms, with or without modifica- 585 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met: 586 * tion, are permitted provided that the following conditions are met:
… …
506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 600 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 601 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 602 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 603 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510 * OF THE POSSIBILITY OF SUCH DAMAGE. 604 * OF THE POSSIBILITY OF SUCH DAMAGE.
605 *
606 * Alternatively, the contents of this file may be used under the terms of
607 * the GNU General Public License ("GPL") version 2 or any later version,
608 * in which case the provisions of the GPL are applicable instead of
609 * the above. If you wish to allow the use of your version of this file
610 * only under the terms of the GPL and not to allow others to use your
611 * version of this file under the BSD license, indicate your decision
612 * by deleting the provisions above and replace them with the notice
613 * and other provisions required by the GPL. If you do not delete the
614 * provisions above, a recipient may use your version of this file under
615 * either the BSD or the GPL.
511 */ 616 */
512 617
513#ifndef ECB_H 618#ifndef ECB_H
514#define ECB_H 619#define ECB_H
515 620
516/* 16 bits major, 16 bits minor */ 621/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003 622#define ECB_VERSION 0x00010006
518 623
519#ifdef _WIN32 624#ifdef _WIN32
520 typedef signed char int8_t; 625 typedef signed char int8_t;
521 typedef unsigned char uint8_t; 626 typedef unsigned char uint8_t;
522 typedef signed short int16_t; 627 typedef signed short int16_t;
… …
539 typedef uint32_t uintptr_t; 644 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t; 645 typedef int32_t intptr_t;
541 #endif 646 #endif
542#else 647#else
543 #include <inttypes.h> 648 #include <inttypes.h>
544 #if UINTMAX_MAX > 0xffffffffU 649 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
545 #define ECB_PTRSIZE 8 650 #define ECB_PTRSIZE 8
546 #else 651 #else
547 #define ECB_PTRSIZE 4 652 #define ECB_PTRSIZE 4
548 #endif 653 #endif
549#endif 654#endif
550 655
656#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
657#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
658
551/* work around x32 idiocy by defining proper macros */ 659/* work around x32 idiocy by defining proper macros */
552#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 660#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
553 #if _ILP32 661 #if _ILP32
554 #define ECB_AMD64_X32 1 662 #define ECB_AMD64_X32 1
555 #else 663 #else
556 #define ECB_AMD64 1 664 #define ECB_AMD64 1
557 #endif 665 #endif
… …
562 * causing enormous grief in return for some better fake benchmark numbers. 670 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so. 671 * or so.
564 * we try to detect these and simply assume they are not gcc - if they have 672 * we try to detect these and simply assume they are not gcc - if they have
565 * an issue with that they should have done it right in the first place. 673 * an issue with that they should have done it right in the first place.
566 */ 674 */
567#ifndef ECB_GCC_VERSION
568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 675#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569 #define ECB_GCC_VERSION(major,minor) 0 676 #define ECB_GCC_VERSION(major,minor) 0
570 #else 677#else
571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 678 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572 #endif 679#endif
573#endif
574 680
575#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 681#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
576#define ECB_C99 (__STDC_VERSION__ >= 199901L) 682
577#define ECB_C11 (__STDC_VERSION__ >= 201112L) 683#if __clang__ && defined __has_builtin
684 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
685#else
686 #define ECB_CLANG_BUILTIN(x) 0
687#endif
688
689#if __clang__ && defined __has_extension
690 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
691#else
692 #define ECB_CLANG_EXTENSION(x) 0
693#endif
694
578#define ECB_CPP (__cplusplus+0) 695#define ECB_CPP (__cplusplus+0)
579#define ECB_CPP11 (__cplusplus >= 201103L) 696#define ECB_CPP11 (__cplusplus >= 201103L)
697#define ECB_CPP14 (__cplusplus >= 201402L)
698#define ECB_CPP17 (__cplusplus >= 201703L)
699
700#if ECB_CPP
701 #define ECB_C 0
702 #define ECB_STDC_VERSION 0
703#else
704 #define ECB_C 1
705 #define ECB_STDC_VERSION __STDC_VERSION__
706#endif
707
708#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
709#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
710#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
580 711
581#if ECB_CPP 712#if ECB_CPP
582 #define ECB_EXTERN_C extern "C" 713 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 714 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END } 715 #define ECB_EXTERN_C_END }
… …
599 730
600#if ECB_NO_SMP 731#if ECB_NO_SMP
601 #define ECB_MEMORY_FENCE do { } while (0) 732 #define ECB_MEMORY_FENCE do { } while (0)
602#endif 733#endif
603 734
735/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
736#if __xlC__ && ECB_CPP
737 #include <builtins.h>
738#endif
739
740#if 1400 <= _MSC_VER
741 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
742#endif
743
604#ifndef ECB_MEMORY_FENCE 744#ifndef ECB_MEMORY_FENCE
605 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 745 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
746 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
606 #if __i386 || __i386__ 747 #if __i386 || __i386__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 748 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 749 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 750 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 751 #elif ECB_GCC_AMD64
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 752 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 753 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 754 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 755 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 756 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
757 #elif defined __ARM_ARCH_2__ \
758 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
759 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
760 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
761 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
762 || defined __ARM_ARCH_5TEJ__
763 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
616 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 764 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 765 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
766 || defined __ARM_ARCH_6T2__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 767 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
619 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 768 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 769 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 770 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
771 #elif __aarch64__
772 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
622 #elif (__sparc || __sparc__) && !__sparcv8 773 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 774 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 775 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 776 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626 #elif defined __s390__ || defined __s390x__ 777 #elif defined __s390__ || defined __s390x__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 778 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
648 799
649#ifndef ECB_MEMORY_FENCE 800#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7) 801 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */ 802 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 803 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
804 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
805 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
806 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
653 807
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 808 #elif ECB_CLANG_EXTENSION(c_atomic)
655 * without risking compile time errors with other compilers. We *could*
656 * define our own ecb_clang_has_feature, but I just can't be bothered to work
657 * around this shit time and again.
658 * #elif defined __clang && __has_feature (cxx_atomic)
659 * // see comment below (stdatomic.h) about the C11 memory model. 809 /* see comment below (stdatomic.h) about the C11 memory model. */
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 810 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */ 811 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
812 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
813 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
662 814
663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 815 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664 #define ECB_MEMORY_FENCE __sync_synchronize () 816 #define ECB_MEMORY_FENCE __sync_synchronize ()
665 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 817 #elif _MSC_VER >= 1500 /* VC++ 2008 */
666 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 818 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
676 #elif defined _WIN32 828 #elif defined _WIN32
677 #include <WinNT.h> 829 #include <WinNT.h>
678 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 830 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
679 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 831 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
680 #include <mbarrier.h> 832 #include <mbarrier.h>
681 #define ECB_MEMORY_FENCE __machine_rw_barrier () 833 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
682 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 834 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
683 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 835 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
836 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
684 #elif __xlC__ 837 #elif __xlC__
685 #define ECB_MEMORY_FENCE __sync () 838 #define ECB_MEMORY_FENCE __sync ()
686 #endif 839 #endif
687#endif 840#endif
688 841
689#ifndef ECB_MEMORY_FENCE 842#ifndef ECB_MEMORY_FENCE
690 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 843 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
691 /* we assume that these memory fences work on all variables/all memory accesses, */ 844 /* we assume that these memory fences work on all variables/all memory accesses, */
692 /* not just C11 atomics and atomic accesses */ 845 /* not just C11 atomics and atomic accesses */
693 #include <stdatomic.h> 846 #include <stdatomic.h>
694 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
695 /* any fence other than seq_cst, which isn't very efficient for us. */
696 /* Why that is, we don't know - either the C11 memory model is quite useless */
697 /* for most usages, or gcc and clang have a bug */
698 /* I *currently* lean towards the latter, and inefficiently implement */
699 /* all three of ecb's fences as a seq_cst fence */
700 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 847 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
848 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
849 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
701 #endif 850 #endif
702#endif 851#endif
703 852
704#ifndef ECB_MEMORY_FENCE 853#ifndef ECB_MEMORY_FENCE
705 #if !ECB_AVOID_PTHREADS 854 #if !ECB_AVOID_PTHREADS
… …
725 874
726#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 875#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
727 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 876 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
728#endif 877#endif
729 878
879#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
880 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
881#endif
882
730/*****************************************************************************/ 883/*****************************************************************************/
731 884
732#if __cplusplus 885#if ECB_CPP
733 #define ecb_inline static inline 886 #define ecb_inline static inline
734#elif ECB_GCC_VERSION(2,5) 887#elif ECB_GCC_VERSION(2,5)
735 #define ecb_inline static __inline__ 888 #define ecb_inline static __inline__
736#elif ECB_C99 889#elif ECB_C99
737 #define ecb_inline static inline 890 #define ecb_inline static inline
… …
751 904
752#define ECB_CONCAT_(a, b) a ## b 905#define ECB_CONCAT_(a, b) a ## b
753#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 906#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
754#define ECB_STRINGIFY_(a) # a 907#define ECB_STRINGIFY_(a) # a
755#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 908#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
909#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
756 910
757#define ecb_function_ ecb_inline 911#define ecb_function_ ecb_inline
758 912
759#if ECB_GCC_VERSION(3,1) 913#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
760 #define ecb_attribute(attrlist) __attribute__(attrlist) 914 #define ecb_attribute(attrlist) __attribute__ (attrlist)
915#else
916 #define ecb_attribute(attrlist)
917#endif
918
919#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
761 #define ecb_is_constant(expr) __builtin_constant_p (expr) 920 #define ecb_is_constant(expr) __builtin_constant_p (expr)
921#else
922 /* possible C11 impl for integral types
923 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
924 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
925
926 #define ecb_is_constant(expr) 0
927#endif
928
929#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
762 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 930 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
931#else
932 #define ecb_expect(expr,value) (expr)
933#endif
934
935#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
763 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 936 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
764#else 937#else
765 #define ecb_attribute(attrlist)
766 #define ecb_is_constant(expr) 0
767 #define ecb_expect(expr,value) (expr)
768 #define ecb_prefetch(addr,rw,locality) 938 #define ecb_prefetch(addr,rw,locality)
769#endif 939#endif
770 940
771/* no emulation for ecb_decltype */ 941/* no emulation for ecb_decltype */
772#if ECB_GCC_VERSION(4,5) 942#if ECB_CPP11
943 // older implementations might have problems with decltype(x)::type, work around it
944 template<class T> struct ecb_decltype_t { typedef T type; };
773 #define ecb_decltype(x) __decltype(x) 945 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
774#elif ECB_GCC_VERSION(3,0) 946#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
775 #define ecb_decltype(x) __typeof(x) 947 #define ecb_decltype(x) __typeof__ (x)
776#endif 948#endif
777 949
950#if _MSC_VER >= 1300
951 #define ecb_deprecated __declspec (deprecated)
952#else
953 #define ecb_deprecated ecb_attribute ((__deprecated__))
954#endif
955
956#if _MSC_VER >= 1500
957 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
958#elif ECB_GCC_VERSION(4,5)
959 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
960#else
961 #define ecb_deprecated_message(msg) ecb_deprecated
962#endif
963
964#if _MSC_VER >= 1400
965 #define ecb_noinline __declspec (noinline)
966#else
778#define ecb_noinline ecb_attribute ((__noinline__)) 967 #define ecb_noinline ecb_attribute ((__noinline__))
968#endif
969
779#define ecb_unused ecb_attribute ((__unused__)) 970#define ecb_unused ecb_attribute ((__unused__))
780#define ecb_const ecb_attribute ((__const__)) 971#define ecb_const ecb_attribute ((__const__))
781#define ecb_pure ecb_attribute ((__pure__)) 972#define ecb_pure ecb_attribute ((__pure__))
782 973
783#if ECB_C11 974#if ECB_C11 || __IBMC_NORETURN
975 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
784 #define ecb_noreturn _Noreturn 976 #define ecb_noreturn _Noreturn
977#elif ECB_CPP11
978 #define ecb_noreturn [[noreturn]]
979#elif _MSC_VER >= 1200
980 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
981 #define ecb_noreturn __declspec (noreturn)
785#else 982#else
786 #define ecb_noreturn ecb_attribute ((__noreturn__)) 983 #define ecb_noreturn ecb_attribute ((__noreturn__))
787#endif 984#endif
788 985
789#if ECB_GCC_VERSION(4,3) 986#if ECB_GCC_VERSION(4,3)
… …
804/* for compatibility to the rest of the world */ 1001/* for compatibility to the rest of the world */
805#define ecb_likely(expr) ecb_expect_true (expr) 1002#define ecb_likely(expr) ecb_expect_true (expr)
806#define ecb_unlikely(expr) ecb_expect_false (expr) 1003#define ecb_unlikely(expr) ecb_expect_false (expr)
807 1004
808/* count trailing zero bits and count # of one bits */ 1005/* count trailing zero bits and count # of one bits */
809#if ECB_GCC_VERSION(3,4) 1006#if ECB_GCC_VERSION(3,4) \
1007 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
1008 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
1009 && ECB_CLANG_BUILTIN(__builtin_popcount))
810 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 1010 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
811 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 1011 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
812 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 1012 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
813 #define ecb_ctz32(x) __builtin_ctz (x) 1013 #define ecb_ctz32(x) __builtin_ctz (x)
814 #define ecb_ctz64(x) __builtin_ctzll (x) 1014 #define ecb_ctz64(x) __builtin_ctzll (x)
815 #define ecb_popcount32(x) __builtin_popcount (x) 1015 #define ecb_popcount32(x) __builtin_popcount (x)
816 /* no popcountll */ 1016 /* no popcountll */
817#else 1017#else
818 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1018 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
819 ecb_function_ int 1019 ecb_function_ ecb_const int
820 ecb_ctz32 (uint32_t x) 1020 ecb_ctz32 (uint32_t x)
821 { 1021 {
1022#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1023 unsigned long r;
1024 _BitScanForward (&r, x);
1025 return (int)r;
1026#else
822 int r = 0; 1027 int r = 0;
823 1028
824 x &= ~x + 1; /* this isolates the lowest bit */ 1029 x &= ~x + 1; /* this isolates the lowest bit */
825 1030
826#if ECB_branchless_on_i386 1031#if ECB_branchless_on_i386
… …
836 if (x & 0xff00ff00) r += 8; 1041 if (x & 0xff00ff00) r += 8;
837 if (x & 0xffff0000) r += 16; 1042 if (x & 0xffff0000) r += 16;
838#endif 1043#endif
839 1044
840 return r; 1045 return r;
1046#endif
841 } 1047 }
842 1048
843 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1049 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
844 ecb_function_ int 1050 ecb_function_ ecb_const int
845 ecb_ctz64 (uint64_t x) 1051 ecb_ctz64 (uint64_t x)
846 { 1052 {
1053#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1054 unsigned long r;
1055 _BitScanForward64 (&r, x);
1056 return (int)r;
1057#else
847 int shift = x & 0xffffffffU ? 0 : 32; 1058 int shift = x & 0xffffffff ? 0 : 32;
848 return ecb_ctz32 (x >> shift) + shift; 1059 return ecb_ctz32 (x >> shift) + shift;
1060#endif
849 } 1061 }
850 1062
851 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1063 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
852 ecb_function_ int 1064 ecb_function_ ecb_const int
853 ecb_popcount32 (uint32_t x) 1065 ecb_popcount32 (uint32_t x)
854 { 1066 {
855 x -= (x >> 1) & 0x55555555; 1067 x -= (x >> 1) & 0x55555555;
856 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1068 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
857 x = ((x >> 4) + x) & 0x0f0f0f0f; 1069 x = ((x >> 4) + x) & 0x0f0f0f0f;
858 x *= 0x01010101; 1070 x *= 0x01010101;
859 1071
860 return x >> 24; 1072 return x >> 24;
861 } 1073 }
862 1074
863 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1075 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
864 ecb_function_ int ecb_ld32 (uint32_t x) 1076 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
865 { 1077 {
1078#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1079 unsigned long r;
1080 _BitScanReverse (&r, x);
1081 return (int)r;
1082#else
866 int r = 0; 1083 int r = 0;
867 1084
868 if (x >> 16) { x >>= 16; r += 16; } 1085 if (x >> 16) { x >>= 16; r += 16; }
869 if (x >> 8) { x >>= 8; r += 8; } 1086 if (x >> 8) { x >>= 8; r += 8; }
870 if (x >> 4) { x >>= 4; r += 4; } 1087 if (x >> 4) { x >>= 4; r += 4; }
871 if (x >> 2) { x >>= 2; r += 2; } 1088 if (x >> 2) { x >>= 2; r += 2; }
872 if (x >> 1) { r += 1; } 1089 if (x >> 1) { r += 1; }
873 1090
874 return r; 1091 return r;
1092#endif
875 } 1093 }
876 1094
877 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1095 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
878 ecb_function_ int ecb_ld64 (uint64_t x) 1096 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
879 { 1097 {
1098#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1099 unsigned long r;
1100 _BitScanReverse64 (&r, x);
1101 return (int)r;
1102#else
880 int r = 0; 1103 int r = 0;
881 1104
882 if (x >> 32) { x >>= 32; r += 32; } 1105 if (x >> 32) { x >>= 32; r += 32; }
883 1106
884 return r + ecb_ld32 (x); 1107 return r + ecb_ld32 (x);
1108#endif
885 } 1109 }
886#endif 1110#endif
887 1111
888ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1112ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
889ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1113ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
890ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1114ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
891ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1115ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
892 1116
893ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1117ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
894ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1118ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
895{ 1119{
896 return ( (x * 0x0802U & 0x22110U) 1120 return ( (x * 0x0802U & 0x22110U)
897 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1121 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
898} 1122}
899 1123
900ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1124ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
901ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1125ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
902{ 1126{
903 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1127 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
904 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1128 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
905 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1129 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
906 x = ( x >> 8 ) | ( x << 8); 1130 x = ( x >> 8 ) | ( x << 8);
907 1131
908 return x; 1132 return x;
909} 1133}
910 1134
911ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1135ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
912ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1136ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
913{ 1137{
914 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1138 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
915 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1139 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
916 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1140 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
917 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1141 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
920 return x; 1144 return x;
921} 1145}
922 1146
923/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1147/* popcount64 is only available on 64 bit cpus as gcc builtin */
924/* so for this version we are lazy */ 1148/* so for this version we are lazy */
925ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1149ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
926ecb_function_ int 1150ecb_function_ ecb_const int
927ecb_popcount64 (uint64_t x) 1151ecb_popcount64 (uint64_t x)
928{ 1152{
929 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1153 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
930} 1154}
931 1155
932ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1156ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
933ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1157ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
934ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1158ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
935ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1159ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
936ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1160ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
937ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1161ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
938ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1162ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
939ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1163ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
940 1164
941ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1165ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
942ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1166ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
943ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1167ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
944ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1168ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
945ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1169ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
946ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1170ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
947ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1171ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
948ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1172ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
949 1173
950#if ECB_GCC_VERSION(4,3) 1174#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1175 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1176 #define ecb_bswap16(x) __builtin_bswap16 (x)
1177 #else
951 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1178 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1179 #endif
952 #define ecb_bswap32(x) __builtin_bswap32 (x) 1180 #define ecb_bswap32(x) __builtin_bswap32 (x)
953 #define ecb_bswap64(x) __builtin_bswap64 (x) 1181 #define ecb_bswap64(x) __builtin_bswap64 (x)
1182#elif _MSC_VER
1183 #include <stdlib.h>
1184 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1185 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1186 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
954#else 1187#else
955 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1188 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
956 ecb_function_ uint16_t 1189 ecb_function_ ecb_const uint16_t
957 ecb_bswap16 (uint16_t x) 1190 ecb_bswap16 (uint16_t x)
958 { 1191 {
959 return ecb_rotl16 (x, 8); 1192 return ecb_rotl16 (x, 8);
960 } 1193 }
961 1194
962 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1195 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
963 ecb_function_ uint32_t 1196 ecb_function_ ecb_const uint32_t
964 ecb_bswap32 (uint32_t x) 1197 ecb_bswap32 (uint32_t x)
965 { 1198 {
966 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1199 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
967 } 1200 }
968 1201
969 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1202 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
970 ecb_function_ uint64_t 1203 ecb_function_ ecb_const uint64_t
971 ecb_bswap64 (uint64_t x) 1204 ecb_bswap64 (uint64_t x)
972 { 1205 {
973 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1206 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
974 } 1207 }
975#endif 1208#endif
976 1209
977#if ECB_GCC_VERSION(4,5) 1210#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
978 #define ecb_unreachable() __builtin_unreachable () 1211 #define ecb_unreachable() __builtin_unreachable ()
979#else 1212#else
980 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1213 /* this seems to work fine, but gcc always emits a warning for it :/ */
981 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1214 ecb_inline ecb_noreturn void ecb_unreachable (void);
982 ecb_inline void ecb_unreachable (void) { } 1215 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
983#endif 1216#endif
984 1217
985/* try to tell the compiler that some condition is definitely true */ 1218/* try to tell the compiler that some condition is definitely true */
986#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1219#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
987 1220
988ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1221ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
989ecb_inline unsigned char 1222ecb_inline ecb_const uint32_t
990ecb_byteorder_helper (void) 1223ecb_byteorder_helper (void)
991{ 1224{
992 /* the union code still generates code under pressure in gcc, */ 1225 /* the union code still generates code under pressure in gcc, */
993 /* but less than using pointers, and always seems to */ 1226 /* but less than using pointers, and always seems to */
994 /* successfully return a constant. */ 1227 /* successfully return a constant. */
995 /* the reason why we have this horrible preprocessor mess */ 1228 /* the reason why we have this horrible preprocessor mess */
996 /* is to avoid it in all cases, at least on common architectures */ 1229 /* is to avoid it in all cases, at least on common architectures */
997 /* or when using a recent enough gcc version (>= 4.6) */ 1230 /* or when using a recent enough gcc version (>= 4.6) */
998#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
999 return 0x44;
1000#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1231#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1232 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1233 #define ECB_LITTLE_ENDIAN 1
1001 return 0x44; 1234 return 0x44332211;
1002#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1235#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1236 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1237 #define ECB_BIG_ENDIAN 1
1003 return 0x11; 1238 return 0x11223344;
1004#else 1239#else
1005 union 1240 union
1006 { 1241 {
1242 uint8_t c[4];
1007 uint32_t i; 1243 uint32_t u;
1008 uint8_t c;
1009 } u = { 0x11223344 }; 1244 } u = { 0x11, 0x22, 0x33, 0x44 };
1010 return u.c; 1245 return u.u;
1011#endif 1246#endif
1012} 1247}
1013 1248
1014ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1249ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1015ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1250ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1016ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1251ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1017ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1252ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1018 1253
1019#if ECB_GCC_VERSION(3,0) || ECB_C99 1254#if ECB_GCC_VERSION(3,0) || ECB_C99
1020 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1255 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1021#else 1256#else
1022 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1257 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1023#endif 1258#endif
1024 1259
1025#if __cplusplus 1260#if ECB_CPP
1026 template<typename T> 1261 template<typename T>
1027 static inline T ecb_div_rd (T val, T div) 1262 static inline T ecb_div_rd (T val, T div)
1028 { 1263 {
1029 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1264 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1030 } 1265 }
… …
1047 } 1282 }
1048#else 1283#else
1049 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1284 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1050#endif 1285#endif
1051 1286
1287ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1288ecb_function_ ecb_const uint32_t
1289ecb_binary16_to_binary32 (uint32_t x)
1290{
1291 unsigned int s = (x & 0x8000) << (31 - 15);
1292 int e = (x >> 10) & 0x001f;
1293 unsigned int m = x & 0x03ff;
1294
1295 if (ecb_expect_false (e == 31))
1296 /* infinity or NaN */
1297 e = 255 - (127 - 15);
1298 else if (ecb_expect_false (!e))
1299 {
1300 if (ecb_expect_true (!m))
1301 /* zero, handled by code below by forcing e to 0 */
1302 e = 0 - (127 - 15);
1303 else
1304 {
1305 /* subnormal, renormalise */
1306 unsigned int s = 10 - ecb_ld32 (m);
1307
1308 m = (m << s) & 0x3ff; /* mask implicit bit */
1309 e -= s - 1;
1310 }
1311 }
1312
1313 /* e and m now are normalised, or zero, (or inf or nan) */
1314 e += 127 - 15;
1315
1316 return s | (e << 23) | (m << (23 - 10));
1317}
1318
1319ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1320ecb_function_ ecb_const uint16_t
1321ecb_binary32_to_binary16 (uint32_t x)
1322{
1323 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1324 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1325 unsigned int m = x & 0x007fffff;
1326
1327 x &= 0x7fffffff;
1328
1329 /* if it's within range of binary16 normals, use fast path */
1330 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1331 {
1332 /* mantissa round-to-even */
1333 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1334
1335 /* handle overflow */
1336 if (ecb_expect_false (m >= 0x00800000))
1337 {
1338 m >>= 1;
1339 e += 1;
1340 }
1341
1342 return s | (e << 10) | (m >> (23 - 10));
1343 }
1344
1345 /* handle large numbers and infinity */
1346 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1347 return s | 0x7c00;
1348
1349 /* handle zero, subnormals and small numbers */
1350 if (ecb_expect_true (x < 0x38800000))
1351 {
1352 /* zero */
1353 if (ecb_expect_true (!x))
1354 return s;
1355
1356 /* handle subnormals */
1357
1358 /* too small, will be zero */
1359 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1360 return s;
1361
1362 m |= 0x00800000; /* make implicit bit explicit */
1363
1364 /* very tricky - we need to round to the nearest e (+10) bit value */
1365 {
1366 unsigned int bits = 14 - e;
1367 unsigned int half = (1 << (bits - 1)) - 1;
1368 unsigned int even = (m >> bits) & 1;
1369
1370 /* if this overflows, we will end up with a normalised number */
1371 m = (m + half + even) >> bits;
1372 }
1373
1374 return s | m;
1375 }
1376
1377 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1378 m >>= 13;
1379
1380 return s | 0x7c00 | m | !m;
1381}
1382
1052/*******************************************************************************/ 1383/*******************************************************************************/
1053/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1384/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1054 1385
1055/* basically, everything uses "ieee pure-endian" floating point numbers */ 1386/* basically, everything uses "ieee pure-endian" floating point numbers */
1056/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1387/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1057#if 0 \ 1388#if 0 \
1058 || __i386 || __i386__ \ 1389 || __i386 || __i386__ \
1059 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1390 || ECB_GCC_AMD64 \
1060 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1391 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1061 || defined __arm__ && defined __ARM_EABI__ \
1062 || defined __s390__ || defined __s390x__ \ 1392 || defined __s390__ || defined __s390x__ \
1063 || defined __mips__ \ 1393 || defined __mips__ \
1064 || defined __alpha__ \ 1394 || defined __alpha__ \
1065 || defined __hppa__ \ 1395 || defined __hppa__ \
1066 || defined __ia64__ \ 1396 || defined __ia64__ \
1067 || defined __m68k__ \ 1397 || defined __m68k__ \
1068 || defined __m88k__ \ 1398 || defined __m88k__ \
1069 || defined __sh__ \ 1399 || defined __sh__ \
1070 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1400 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1401 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1402 || defined __aarch64__
1071 #define ECB_STDFP 1 1403 #define ECB_STDFP 1
1072 #include <string.h> /* for memcpy */ 1404 #include <string.h> /* for memcpy */
1073#else 1405#else
1074 #define ECB_STDFP 0 1406 #define ECB_STDFP 0
1075#endif 1407#endif
… …
1089 #define ECB_NAN NAN 1421 #define ECB_NAN NAN
1090 #else 1422 #else
1091 #define ECB_NAN ECB_INFINITY 1423 #define ECB_NAN ECB_INFINITY
1092 #endif 1424 #endif
1093 1425
1094 /* converts an ieee half/binary16 to a float */ 1426 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1095 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1427 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1096 ecb_function_ float 1428 #define ecb_frexpf(x,e) frexpf ((x), (e))
1097 ecb_binary16_to_float (uint16_t x) 1429 #else
1098 { 1430 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1099 int e = (x >> 10) & 0x1f; 1431 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1100 int m = x & 0x3ff; 1432 #endif
1101 float r;
1102
1103 if (!e ) r = ldexpf (m , -24);
1104 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1105 else if (m ) r = ECB_NAN;
1106 else r = ECB_INFINITY;
1107
1108 return x & 0x8000 ? -r : r;
1109 }
1110 1433
1111 /* convert a float to ieee single/binary32 */ 1434 /* convert a float to ieee single/binary32 */
1112 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1435 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1113 ecb_function_ uint32_t 1436 ecb_function_ ecb_const uint32_t
1114 ecb_float_to_binary32 (float x) 1437 ecb_float_to_binary32 (float x)
1115 { 1438 {
1116 uint32_t r; 1439 uint32_t r;
1117 1440
1118 #if ECB_STDFP 1441 #if ECB_STDFP
… …
1125 if (x == 0e0f ) return 0x00000000U; 1448 if (x == 0e0f ) return 0x00000000U;
1126 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1449 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1127 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1450 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1128 if (x != x ) return 0x7fbfffffU; 1451 if (x != x ) return 0x7fbfffffU;
1129 1452
1130 m = frexpf (x, &e) * 0x1000000U; 1453 m = ecb_frexpf (x, &e) * 0x1000000U;
1131 1454
1132 r = m & 0x80000000U; 1455 r = m & 0x80000000U;
1133 1456
1134 if (r) 1457 if (r)
1135 m = -m; 1458 m = -m;
… …
1147 1470
1148 return r; 1471 return r;
1149 } 1472 }
1150 1473
1151 /* converts an ieee single/binary32 to a float */ 1474 /* converts an ieee single/binary32 to a float */
1152 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1475 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1153 ecb_function_ float 1476 ecb_function_ ecb_const float
1154 ecb_binary32_to_float (uint32_t x) 1477 ecb_binary32_to_float (uint32_t x)
1155 { 1478 {
1156 float r; 1479 float r;
1157 1480
1158 #if ECB_STDFP 1481 #if ECB_STDFP
… …
1168 x |= 0x800000U; 1491 x |= 0x800000U;
1169 else 1492 else
1170 e = 1; 1493 e = 1;
1171 1494
1172 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1495 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1173 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1496 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1174 1497
1175 r = neg ? -r : r; 1498 r = neg ? -r : r;
1176 #endif 1499 #endif
1177 1500
1178 return r; 1501 return r;
1179 } 1502 }
1180 1503
1181 /* convert a double to ieee double/binary64 */ 1504 /* convert a double to ieee double/binary64 */
1182 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1505 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1183 ecb_function_ uint64_t 1506 ecb_function_ ecb_const uint64_t
1184 ecb_double_to_binary64 (double x) 1507 ecb_double_to_binary64 (double x)
1185 { 1508 {
1186 uint64_t r; 1509 uint64_t r;
1187 1510
1188 #if ECB_STDFP 1511 #if ECB_STDFP
… …
1217 1540
1218 return r; 1541 return r;
1219 } 1542 }
1220 1543
1221 /* converts an ieee double/binary64 to a double */ 1544 /* converts an ieee double/binary64 to a double */
1222 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1545 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1223 ecb_function_ double 1546 ecb_function_ ecb_const double
1224 ecb_binary64_to_double (uint64_t x) 1547 ecb_binary64_to_double (uint64_t x)
1225 { 1548 {
1226 double r; 1549 double r;
1227 1550
1228 #if ECB_STDFP 1551 #if ECB_STDFP
… …
1246 #endif 1569 #endif
1247 1570
1248 return r; 1571 return r;
1249 } 1572 }
1250 1573
1574 /* convert a float to ieee half/binary16 */
1575 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1576 ecb_function_ ecb_const uint16_t
1577 ecb_float_to_binary16 (float x)
1578 {
1579 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1580 }
1581
1582 /* convert an ieee half/binary16 to float */
1583 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1584 ecb_function_ ecb_const float
1585 ecb_binary16_to_float (uint16_t x)
1586 {
1587 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1588 }
1589
1251#endif 1590#endif
1252 1591
1253#endif 1592#endif
1254 1593
1255/* ECB.H END */ 1594/* ECB.H END */
1256 1595
1257#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1596#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1258/* if your architecture doesn't need memory fences, e.g. because it is 1597/* if your architecture doesn't need memory fences, e.g. because it is
1259 * single-cpu/core, or if you use libev in a project that doesn't use libev 1598 * single-cpu/core, or if you use libev in a project that doesn't use libev
1260 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1599 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1261 * libev, in which cases the memory fences become nops. 1600 * libev, in which cases the memory fences become nops.
1262 * alternatively, you can remove this #error and link against libpthread, 1601 * alternatively, you can remove this #error and link against libpthread,
1263 * which will then provide the memory fences. 1602 * which will then provide the memory fences.
1264 */ 1603 */
1265# error "memory fences not defined for your architecture, please report" 1604# error "memory fences not defined for your architecture, please report"
… …
1269# define ECB_MEMORY_FENCE do { } while (0) 1608# define ECB_MEMORY_FENCE do { } while (0)
1270# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1609# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1271# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1610# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1272#endif 1611#endif
1273 1612
1274#define expect_false(cond) ecb_expect_false (cond)
1275#define expect_true(cond) ecb_expect_true (cond)
1276#define noinline ecb_noinline
1277
1278#define inline_size ecb_inline 1613#define inline_size ecb_inline
1279 1614
1280#if EV_FEATURE_CODE 1615#if EV_FEATURE_CODE
1281# define inline_speed ecb_inline 1616# define inline_speed ecb_inline
1282#else 1617#else
1283# define inline_speed static noinline 1618# define inline_speed ecb_noinline static
1284#endif 1619#endif
1620
1621/*****************************************************************************/
1622/* raw syscall wrappers */
1623
1624#if EV_NEED_SYSCALL
1625
1626#include <sys/syscall.h>
1627
1628/*
1629 * define some syscall wrappers for common architectures
1630 * this is mostly for nice looks during debugging, not performance.
1631 * our syscalls return < 0, not == -1, on error. which is good
1632 * enough for linux aio.
1633 * TODO: arm is also common nowadays, maybe even mips and x86
1634 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1635 */
1636#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1637 /* the costly errno access probably kills this for size optimisation */
1638
1639 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1640 ({ \
1641 long res; \
1642 register unsigned long r6 __asm__ ("r9" ); \
1643 register unsigned long r5 __asm__ ("r8" ); \
1644 register unsigned long r4 __asm__ ("r10"); \
1645 register unsigned long r3 __asm__ ("rdx"); \
1646 register unsigned long r2 __asm__ ("rsi"); \
1647 register unsigned long r1 __asm__ ("rdi"); \
1648 if (narg >= 6) r6 = (unsigned long)(arg6); \
1649 if (narg >= 5) r5 = (unsigned long)(arg5); \
1650 if (narg >= 4) r4 = (unsigned long)(arg4); \
1651 if (narg >= 3) r3 = (unsigned long)(arg3); \
1652 if (narg >= 2) r2 = (unsigned long)(arg2); \
1653 if (narg >= 1) r1 = (unsigned long)(arg1); \
1654 __asm__ __volatile__ ( \
1655 "syscall\n\t" \
1656 : "=a" (res) \
1657 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1658 : "cc", "r11", "cx", "memory"); \
1659 errno = -res; \
1660 res; \
1661 })
1662
1663#endif
1664
1665#ifdef ev_syscall
1666 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1667 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1668 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1669 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1670 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1671 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1672 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1673#else
1674 #define ev_syscall0(nr) syscall (nr)
1675 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1676 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1677 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1678 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1679 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1680 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1681#endif
1682
1683#endif
1684
1685/*****************************************************************************/
1285 1686
1286#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1687#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1287 1688
1288#if EV_MINPRI == EV_MAXPRI 1689#if EV_MINPRI == EV_MAXPRI
1289# define ABSPRI(w) (((W)w), 0) 1690# define ABSPRI(w) (((W)w), 0)
1290#else 1691#else
1291# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1692# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1292#endif 1693#endif
1293 1694
1294#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1695#define EMPTY /* required for microsofts broken pseudo-c compiler */
1295#define EMPTY2(a,b) /* used to suppress some warnings */
1296 1696
1297typedef ev_watcher *W; 1697typedef ev_watcher *W;
1298typedef ev_watcher_list *WL; 1698typedef ev_watcher_list *WL;
1299typedef ev_watcher_time *WT; 1699typedef ev_watcher_time *WT;
1300 1700
… …
1325# include "ev_win32.c" 1725# include "ev_win32.c"
1326#endif 1726#endif
1327 1727
1328/*****************************************************************************/ 1728/*****************************************************************************/
1329 1729
1730#if EV_USE_LINUXAIO
1731# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1732#endif
1733
1330/* define a suitable floor function (only used by periodics atm) */ 1734/* define a suitable floor function (only used by periodics atm) */
1331 1735
1332#if EV_USE_FLOOR 1736#if EV_USE_FLOOR
1333# include <math.h> 1737# include <math.h>
1334# define ev_floor(v) floor (v) 1738# define ev_floor(v) floor (v)
1335#else 1739#else
1336 1740
1337#include <float.h> 1741#include <float.h>
1338 1742
1339/* a floor() replacement function, should be independent of ev_tstamp type */ 1743/* a floor() replacement function, should be independent of ev_tstamp type */
1744ecb_noinline
1340static ev_tstamp noinline 1745static ev_tstamp
1341ev_floor (ev_tstamp v) 1746ev_floor (ev_tstamp v)
1342{ 1747{
1343 /* the choice of shift factor is not terribly important */ 1748 /* the choice of shift factor is not terribly important */
1344#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1749#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1345 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1750 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1346#else 1751#else
1347 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1752 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1348#endif 1753#endif
1349 1754
1755 /* special treatment for negative arguments */
1756 if (ecb_expect_false (v < 0.))
1757 {
1758 ev_tstamp f = -ev_floor (-v);
1759
1760 return f - (f == v ? 0 : 1);
1761 }
1762
1350 /* argument too large for an unsigned long? */ 1763 /* argument too large for an unsigned long? then reduce it */
1351 if (expect_false (v >= shift)) 1764 if (ecb_expect_false (v >= shift))
1352 { 1765 {
1353 ev_tstamp f; 1766 ev_tstamp f;
1354 1767
1355 if (v == v - 1.) 1768 if (v == v - 1.)
1356 return v; /* very large number */ 1769 return v; /* very large numbers are assumed to be integer */
1357 1770
1358 f = shift * ev_floor (v * (1. / shift)); 1771 f = shift * ev_floor (v * (1. / shift));
1359 return f + ev_floor (v - f); 1772 return f + ev_floor (v - f);
1360 } 1773 }
1361 1774
1362 /* special treatment for negative args? */
1363 if (expect_false (v < 0.))
1364 {
1365 ev_tstamp f = -ev_floor (-v);
1366
1367 return f - (f == v ? 0 : 1);
1368 }
1369
1370 /* fits into an unsigned long */ 1775 /* fits into an unsigned long */
1371 return (unsigned long)v; 1776 return (unsigned long)v;
1372} 1777}
1373 1778
1374#endif 1779#endif
… …
1377 1782
1378#ifdef __linux 1783#ifdef __linux
1379# include <sys/utsname.h> 1784# include <sys/utsname.h>
1380#endif 1785#endif
1381 1786
1382static unsigned int noinline ecb_cold 1787ecb_noinline ecb_cold
1788static unsigned int
1383ev_linux_version (void) 1789ev_linux_version (void)
1384{ 1790{
1385#ifdef __linux 1791#ifdef __linux
1386 unsigned int v = 0; 1792 unsigned int v = 0;
1387 struct utsname buf; 1793 struct utsname buf;
… …
1416} 1822}
1417 1823
1418/*****************************************************************************/ 1824/*****************************************************************************/
1419 1825
1420#if EV_AVOID_STDIO 1826#if EV_AVOID_STDIO
1421static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1422ev_printerr (const char *msg) 1829ev_printerr (const char *msg)
1423{ 1830{
1424 write (STDERR_FILENO, msg, strlen (msg)); 1831 write (STDERR_FILENO, msg, strlen (msg));
1425} 1832}
1426#endif 1833#endif
1427 1834
1428static void (*syserr_cb)(const char *msg) EV_THROW; 1835static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1429 1836
1430void ecb_cold 1837ecb_cold
1838void
1431ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1839ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1432{ 1840{
1433 syserr_cb = cb; 1841 syserr_cb = cb;
1434} 1842}
1435 1843
1436static void noinline ecb_cold 1844ecb_noinline ecb_cold
1845static void
1437ev_syserr (const char *msg) 1846ev_syserr (const char *msg)
1438{ 1847{
1439 if (!msg) 1848 if (!msg)
1440 msg = "(libev) system error"; 1849 msg = "(libev) system error";
1441 1850
… …
1454 abort (); 1863 abort ();
1455 } 1864 }
1456} 1865}
1457 1866
1458static void * 1867static void *
1459ev_realloc_emul (void *ptr, long size) EV_THROW 1868ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1460{ 1869{
1461 /* some systems, notably openbsd and darwin, fail to properly 1870 /* some systems, notably openbsd and darwin, fail to properly
1462 * implement realloc (x, 0) (as required by both ansi c-89 and 1871 * implement realloc (x, 0) (as required by both ansi c-89 and
1463 * the single unix specification, so work around them here. 1872 * the single unix specification, so work around them here.
1464 * recently, also (at least) fedora and debian started breaking it, 1873 * recently, also (at least) fedora and debian started breaking it,
… …
1470 1879
1471 free (ptr); 1880 free (ptr);
1472 return 0; 1881 return 0;
1473} 1882}
1474 1883
1475static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1884static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1476 1885
1477void ecb_cold 1886ecb_cold
1887void
1478ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1888ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1479{ 1889{
1480 alloc = cb; 1890 alloc = cb;
1481} 1891}
1482 1892
1483inline_speed void * 1893inline_speed void *
… …
1510typedef struct 1920typedef struct
1511{ 1921{
1512 WL head; 1922 WL head;
1513 unsigned char events; /* the events watched for */ 1923 unsigned char events; /* the events watched for */
1514 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1924 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1515 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1925 unsigned char emask; /* some backends store the actual kernel mask in here */
1516 unsigned char unused; 1926 unsigned char eflags; /* flags field for use by backends */
1517#if EV_USE_EPOLL 1927#if EV_USE_EPOLL
1518 unsigned int egen; /* generation counter to counter epoll bugs */ 1928 unsigned int egen; /* generation counter to counter epoll bugs */
1519#endif 1929#endif
1520#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1930#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1521 SOCKET handle; 1931 SOCKET handle;
… …
1575 static struct ev_loop default_loop_struct; 1985 static struct ev_loop default_loop_struct;
1576 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 1986 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1577 1987
1578#else 1988#else
1579 1989
1580 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 1990 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1581 #define VAR(name,decl) static decl; 1991 #define VAR(name,decl) static decl;
1582 #include "ev_vars.h" 1992 #include "ev_vars.h"
1583 #undef VAR 1993 #undef VAR
1584 1994
1585 static int ev_default_loop_ptr; 1995 static int ev_default_loop_ptr;
1586 1996
1587#endif 1997#endif
1588 1998
1589#if EV_FEATURE_API 1999#if EV_FEATURE_API
1590# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2000# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1591# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2001# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1592# define EV_INVOKE_PENDING invoke_cb (EV_A) 2002# define EV_INVOKE_PENDING invoke_cb (EV_A)
1593#else 2003#else
1594# define EV_RELEASE_CB (void)0 2004# define EV_RELEASE_CB (void)0
1595# define EV_ACQUIRE_CB (void)0 2005# define EV_ACQUIRE_CB (void)0
1596# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2006# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1600 2010
1601/*****************************************************************************/ 2011/*****************************************************************************/
1602 2012
1603#ifndef EV_HAVE_EV_TIME 2013#ifndef EV_HAVE_EV_TIME
1604ev_tstamp 2014ev_tstamp
1605ev_time (void) EV_THROW 2015ev_time (void) EV_NOEXCEPT
1606{ 2016{
1607#if EV_USE_REALTIME 2017#if EV_USE_REALTIME
1608 if (expect_true (have_realtime)) 2018 if (ecb_expect_true (have_realtime))
1609 { 2019 {
1610 struct timespec ts; 2020 struct timespec ts;
1611 clock_gettime (CLOCK_REALTIME, &ts); 2021 clock_gettime (CLOCK_REALTIME, &ts);
1612 return ts.tv_sec + ts.tv_nsec * 1e-9; 2022 return EV_TS_GET (ts);
1613 } 2023 }
1614#endif 2024#endif
1615 2025
2026 {
1616 struct timeval tv; 2027 struct timeval tv;
1617 gettimeofday (&tv, 0); 2028 gettimeofday (&tv, 0);
1618 return tv.tv_sec + tv.tv_usec * 1e-6; 2029 return EV_TV_GET (tv);
2030 }
1619} 2031}
1620#endif 2032#endif
1621 2033
1622inline_size ev_tstamp 2034inline_size ev_tstamp
1623get_clock (void) 2035get_clock (void)
1624{ 2036{
1625#if EV_USE_MONOTONIC 2037#if EV_USE_MONOTONIC
1626 if (expect_true (have_monotonic)) 2038 if (ecb_expect_true (have_monotonic))
1627 { 2039 {
1628 struct timespec ts; 2040 struct timespec ts;
1629 clock_gettime (CLOCK_MONOTONIC, &ts); 2041 clock_gettime (CLOCK_MONOTONIC, &ts);
1630 return ts.tv_sec + ts.tv_nsec * 1e-9; 2042 return EV_TS_GET (ts);
1631 } 2043 }
1632#endif 2044#endif
1633 2045
1634 return ev_time (); 2046 return ev_time ();
1635} 2047}
1636 2048
1637#if EV_MULTIPLICITY 2049#if EV_MULTIPLICITY
1638ev_tstamp 2050ev_tstamp
1639ev_now (EV_P) EV_THROW 2051ev_now (EV_P) EV_NOEXCEPT
1640{ 2052{
1641 return ev_rt_now; 2053 return ev_rt_now;
1642} 2054}
1643#endif 2055#endif
1644 2056
1645void 2057void
1646ev_sleep (ev_tstamp delay) EV_THROW 2058ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1647{ 2059{
1648 if (delay > 0.) 2060 if (delay > EV_TS_CONST (0.))
1649 { 2061 {
1650#if EV_USE_NANOSLEEP 2062#if EV_USE_NANOSLEEP
1651 struct timespec ts; 2063 struct timespec ts;
1652 2064
1653 EV_TS_SET (ts, delay); 2065 EV_TS_SET (ts, delay);
1654 nanosleep (&ts, 0); 2066 nanosleep (&ts, 0);
1655#elif defined _WIN32 2067#elif defined _WIN32
2068 /* maybe this should round up, as ms is very low resolution */
2069 /* compared to select (µs) or nanosleep (ns) */
1656 Sleep ((unsigned long)(delay * 1e3)); 2070 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1657#else 2071#else
1658 struct timeval tv; 2072 struct timeval tv;
1659 2073
1660 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2074 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1661 /* something not guaranteed by newer posix versions, but guaranteed */ 2075 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1691 } 2105 }
1692 2106
1693 return ncur; 2107 return ncur;
1694} 2108}
1695 2109
1696static void * noinline ecb_cold 2110ecb_noinline ecb_cold
2111static void *
1697array_realloc (int elem, void *base, int *cur, int cnt) 2112array_realloc (int elem, void *base, int *cur, int cnt)
1698{ 2113{
1699 *cur = array_nextsize (elem, *cur, cnt); 2114 *cur = array_nextsize (elem, *cur, cnt);
1700 return ev_realloc (base, elem * *cur); 2115 return ev_realloc (base, elem * *cur);
1701} 2116}
1702 2117
2118#define array_needsize_noinit(base,offset,count)
2119
1703#define array_init_zero(base,count) \ 2120#define array_needsize_zerofill(base,offset,count) \
1704 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2121 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1705 2122
1706#define array_needsize(type,base,cur,cnt,init) \ 2123#define array_needsize(type,base,cur,cnt,init) \
1707 if (expect_false ((cnt) > (cur))) \ 2124 if (ecb_expect_false ((cnt) > (cur))) \
1708 { \ 2125 { \
1709 int ecb_unused ocur_ = (cur); \ 2126 ecb_unused int ocur_ = (cur); \
1710 (base) = (type *)array_realloc \ 2127 (base) = (type *)array_realloc \
1711 (sizeof (type), (base), &(cur), (cnt)); \ 2128 (sizeof (type), (base), &(cur), (cnt)); \
1712 init ((base) + (ocur_), (cur) - ocur_); \ 2129 init ((base), ocur_, ((cur) - ocur_)); \
1713 } 2130 }
1714 2131
1715#if 0 2132#if 0
1716#define array_slim(type,stem) \ 2133#define array_slim(type,stem) \
1717 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2134 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1726 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2143 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1727 2144
1728/*****************************************************************************/ 2145/*****************************************************************************/
1729 2146
1730/* dummy callback for pending events */ 2147/* dummy callback for pending events */
1731static void noinline 2148ecb_noinline
2149static void
1732pendingcb (EV_P_ ev_prepare *w, int revents) 2150pendingcb (EV_P_ ev_prepare *w, int revents)
1733{ 2151{
1734} 2152}
1735 2153
1736void noinline 2154ecb_noinline
2155void
1737ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2156ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1738{ 2157{
1739 W w_ = (W)w; 2158 W w_ = (W)w;
1740 int pri = ABSPRI (w_); 2159 int pri = ABSPRI (w_);
1741 2160
1742 if (expect_false (w_->pending)) 2161 if (ecb_expect_false (w_->pending))
1743 pendings [pri][w_->pending - 1].events |= revents; 2162 pendings [pri][w_->pending - 1].events |= revents;
1744 else 2163 else
1745 { 2164 {
1746 w_->pending = ++pendingcnt [pri]; 2165 w_->pending = ++pendingcnt [pri];
1747 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2166 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1748 pendings [pri][w_->pending - 1].w = w_; 2167 pendings [pri][w_->pending - 1].w = w_;
1749 pendings [pri][w_->pending - 1].events = revents; 2168 pendings [pri][w_->pending - 1].events = revents;
1750 } 2169 }
1751 2170
1752 pendingpri = NUMPRI - 1; 2171 pendingpri = NUMPRI - 1;
1753} 2172}
1754 2173
1755inline_speed void 2174inline_speed void
1756feed_reverse (EV_P_ W w) 2175feed_reverse (EV_P_ W w)
1757{ 2176{
1758 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2177 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1759 rfeeds [rfeedcnt++] = w; 2178 rfeeds [rfeedcnt++] = w;
1760} 2179}
1761 2180
1762inline_size void 2181inline_size void
1763feed_reverse_done (EV_P_ int revents) 2182feed_reverse_done (EV_P_ int revents)
… …
1798inline_speed void 2217inline_speed void
1799fd_event (EV_P_ int fd, int revents) 2218fd_event (EV_P_ int fd, int revents)
1800{ 2219{
1801 ANFD *anfd = anfds + fd; 2220 ANFD *anfd = anfds + fd;
1802 2221
1803 if (expect_true (!anfd->reify)) 2222 if (ecb_expect_true (!anfd->reify))
1804 fd_event_nocheck (EV_A_ fd, revents); 2223 fd_event_nocheck (EV_A_ fd, revents);
1805} 2224}
1806 2225
1807void 2226void
1808ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2227ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1809{ 2228{
1810 if (fd >= 0 && fd < anfdmax) 2229 if (fd >= 0 && fd < anfdmax)
1811 fd_event_nocheck (EV_A_ fd, revents); 2230 fd_event_nocheck (EV_A_ fd, revents);
1812} 2231}
1813 2232
… …
1850 ev_io *w; 2269 ev_io *w;
1851 2270
1852 unsigned char o_events = anfd->events; 2271 unsigned char o_events = anfd->events;
1853 unsigned char o_reify = anfd->reify; 2272 unsigned char o_reify = anfd->reify;
1854 2273
1855 anfd->reify = 0; 2274 anfd->reify = 0;
1856 2275
1857 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2276 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1858 { 2277 {
1859 anfd->events = 0; 2278 anfd->events = 0;
1860 2279
1861 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2280 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1862 anfd->events |= (unsigned char)w->events; 2281 anfd->events |= (unsigned char)w->events;
… …
1871 2290
1872 fdchangecnt = 0; 2291 fdchangecnt = 0;
1873} 2292}
1874 2293
1875/* something about the given fd changed */ 2294/* something about the given fd changed */
1876inline_size void 2295inline_size
2296void
1877fd_change (EV_P_ int fd, int flags) 2297fd_change (EV_P_ int fd, int flags)
1878{ 2298{
1879 unsigned char reify = anfds [fd].reify; 2299 unsigned char reify = anfds [fd].reify;
1880 anfds [fd].reify |= flags; 2300 anfds [fd].reify |= flags;
1881 2301
1882 if (expect_true (!reify)) 2302 if (ecb_expect_true (!reify))
1883 { 2303 {
1884 ++fdchangecnt; 2304 ++fdchangecnt;
1885 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2305 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1886 fdchanges [fdchangecnt - 1] = fd; 2306 fdchanges [fdchangecnt - 1] = fd;
1887 } 2307 }
1888} 2308}
1889 2309
1890/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2310/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1891inline_speed void ecb_cold 2311inline_speed ecb_cold void
1892fd_kill (EV_P_ int fd) 2312fd_kill (EV_P_ int fd)
1893{ 2313{
1894 ev_io *w; 2314 ev_io *w;
1895 2315
1896 while ((w = (ev_io *)anfds [fd].head)) 2316 while ((w = (ev_io *)anfds [fd].head))
… …
1899 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2319 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1900 } 2320 }
1901} 2321}
1902 2322
1903/* check whether the given fd is actually valid, for error recovery */ 2323/* check whether the given fd is actually valid, for error recovery */
1904inline_size int ecb_cold 2324inline_size ecb_cold int
1905fd_valid (int fd) 2325fd_valid (int fd)
1906{ 2326{
1907#ifdef _WIN32 2327#ifdef _WIN32
1908 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2328 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1909#else 2329#else
1910 return fcntl (fd, F_GETFD) != -1; 2330 return fcntl (fd, F_GETFD) != -1;
1911#endif 2331#endif
1912} 2332}
1913 2333
1914/* called on EBADF to verify fds */ 2334/* called on EBADF to verify fds */
1915static void noinline ecb_cold 2335ecb_noinline ecb_cold
2336static void
1916fd_ebadf (EV_P) 2337fd_ebadf (EV_P)
1917{ 2338{
1918 int fd; 2339 int fd;
1919 2340
1920 for (fd = 0; fd < anfdmax; ++fd) 2341 for (fd = 0; fd < anfdmax; ++fd)
… …
1922 if (!fd_valid (fd) && errno == EBADF) 2343 if (!fd_valid (fd) && errno == EBADF)
1923 fd_kill (EV_A_ fd); 2344 fd_kill (EV_A_ fd);
1924} 2345}
1925 2346
1926/* called on ENOMEM in select/poll to kill some fds and retry */ 2347/* called on ENOMEM in select/poll to kill some fds and retry */
1927static void noinline ecb_cold 2348ecb_noinline ecb_cold
2349static void
1928fd_enomem (EV_P) 2350fd_enomem (EV_P)
1929{ 2351{
1930 int fd; 2352 int fd;
1931 2353
1932 for (fd = anfdmax; fd--; ) 2354 for (fd = anfdmax; fd--; )
… …
1936 break; 2358 break;
1937 } 2359 }
1938} 2360}
1939 2361
1940/* usually called after fork if backend needs to re-arm all fds from scratch */ 2362/* usually called after fork if backend needs to re-arm all fds from scratch */
1941static void noinline 2363ecb_noinline
2364static void
1942fd_rearm_all (EV_P) 2365fd_rearm_all (EV_P)
1943{ 2366{
1944 int fd; 2367 int fd;
1945 2368
1946 for (fd = 0; fd < anfdmax; ++fd) 2369 for (fd = 0; fd < anfdmax; ++fd)
… …
1999 ev_tstamp minat; 2422 ev_tstamp minat;
2000 ANHE *minpos; 2423 ANHE *minpos;
2001 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2424 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2002 2425
2003 /* find minimum child */ 2426 /* find minimum child */
2004 if (expect_true (pos + DHEAP - 1 < E)) 2427 if (ecb_expect_true (pos + DHEAP - 1 < E))
2005 { 2428 {
2006 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2429 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2007 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2430 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2008 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2431 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2009 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2432 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2010 } 2433 }
2011 else if (pos < E) 2434 else if (pos < E)
2012 { 2435 {
2013 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2436 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2014 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2437 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2015 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2438 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2016 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2439 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2017 } 2440 }
2018 else 2441 else
2019 break; 2442 break;
2020 2443
2021 if (ANHE_at (he) <= minat) 2444 if (ANHE_at (he) <= minat)
… …
2029 2452
2030 heap [k] = he; 2453 heap [k] = he;
2031 ev_active (ANHE_w (he)) = k; 2454 ev_active (ANHE_w (he)) = k;
2032} 2455}
2033 2456
2034#else /* 4HEAP */ 2457#else /* not 4HEAP */
2035 2458
2036#define HEAP0 1 2459#define HEAP0 1
2037#define HPARENT(k) ((k) >> 1) 2460#define HPARENT(k) ((k) >> 1)
2038#define UPHEAP_DONE(p,k) (!(p)) 2461#define UPHEAP_DONE(p,k) (!(p))
2039 2462
… …
2127 2550
2128/*****************************************************************************/ 2551/*****************************************************************************/
2129 2552
2130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2131 2554
2132static void noinline ecb_cold 2555ecb_noinline ecb_cold
2556static void
2133evpipe_init (EV_P) 2557evpipe_init (EV_P)
2134{ 2558{
2135 if (!ev_is_active (&pipe_w)) 2559 if (!ev_is_active (&pipe_w))
2136 { 2560 {
2137 int fds [2]; 2561 int fds [2];
… …
2177inline_speed void 2601inline_speed void
2178evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2602evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2179{ 2603{
2180 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2604 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2181 2605
2182 if (expect_true (*flag)) 2606 if (ecb_expect_true (*flag))
2183 return; 2607 return;
2184 2608
2185 *flag = 1; 2609 *flag = 1;
2186 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2610 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2187 2611
… …
2208#endif 2632#endif
2209 { 2633 {
2210#ifdef _WIN32 2634#ifdef _WIN32
2211 WSABUF buf; 2635 WSABUF buf;
2212 DWORD sent; 2636 DWORD sent;
2213 buf.buf = &buf; 2637 buf.buf = (char *)&buf;
2214 buf.len = 1; 2638 buf.len = 1;
2215 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2639 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2216#else 2640#else
2217 write (evpipe [1], &(evpipe [1]), 1); 2641 write (evpipe [1], &(evpipe [1]), 1);
2218#endif 2642#endif
… …
2264 sig_pending = 0; 2688 sig_pending = 0;
2265 2689
2266 ECB_MEMORY_FENCE; 2690 ECB_MEMORY_FENCE;
2267 2691
2268 for (i = EV_NSIG - 1; i--; ) 2692 for (i = EV_NSIG - 1; i--; )
2269 if (expect_false (signals [i].pending)) 2693 if (ecb_expect_false (signals [i].pending))
2270 ev_feed_signal_event (EV_A_ i + 1); 2694 ev_feed_signal_event (EV_A_ i + 1);
2271 } 2695 }
2272#endif 2696#endif
2273 2697
2274#if EV_ASYNC_ENABLE 2698#if EV_ASYNC_ENABLE
… …
2290} 2714}
2291 2715
2292/*****************************************************************************/ 2716/*****************************************************************************/
2293 2717
2294void 2718void
2295ev_feed_signal (int signum) EV_THROW 2719ev_feed_signal (int signum) EV_NOEXCEPT
2296{ 2720{
2297#if EV_MULTIPLICITY 2721#if EV_MULTIPLICITY
2298 EV_P; 2722 EV_P;
2299 ECB_MEMORY_FENCE_ACQUIRE; 2723 ECB_MEMORY_FENCE_ACQUIRE;
2300 EV_A = signals [signum - 1].loop; 2724 EV_A = signals [signum - 1].loop;
… …
2315#endif 2739#endif
2316 2740
2317 ev_feed_signal (signum); 2741 ev_feed_signal (signum);
2318} 2742}
2319 2743
2320void noinline 2744ecb_noinline
2745void
2321ev_feed_signal_event (EV_P_ int signum) EV_THROW 2746ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2322{ 2747{
2323 WL w; 2748 WL w;
2324 2749
2325 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2750 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2326 return; 2751 return;
2327 2752
2328 --signum; 2753 --signum;
2329 2754
2330#if EV_MULTIPLICITY 2755#if EV_MULTIPLICITY
2331 /* it is permissible to try to feed a signal to the wrong loop */ 2756 /* it is permissible to try to feed a signal to the wrong loop */
2332 /* or, likely more useful, feeding a signal nobody is waiting for */ 2757 /* or, likely more useful, feeding a signal nobody is waiting for */
2333 2758
2334 if (expect_false (signals [signum].loop != EV_A)) 2759 if (ecb_expect_false (signals [signum].loop != EV_A))
2335 return; 2760 return;
2336#endif 2761#endif
2337 2762
2338 signals [signum].pending = 0; 2763 signals [signum].pending = 0;
2339 ECB_MEMORY_FENCE_RELEASE; 2764 ECB_MEMORY_FENCE_RELEASE;
… …
2435# include "ev_kqueue.c" 2860# include "ev_kqueue.c"
2436#endif 2861#endif
2437#if EV_USE_EPOLL 2862#if EV_USE_EPOLL
2438# include "ev_epoll.c" 2863# include "ev_epoll.c"
2439#endif 2864#endif
2865#if EV_USE_LINUXAIO
2866# include "ev_linuxaio.c"
2867#endif
2868#if EV_USE_IOURING
2869# include "ev_iouring.c"
2870#endif
2440#if EV_USE_POLL 2871#if EV_USE_POLL
2441# include "ev_poll.c" 2872# include "ev_poll.c"
2442#endif 2873#endif
2443#if EV_USE_SELECT 2874#if EV_USE_SELECT
2444# include "ev_select.c" 2875# include "ev_select.c"
2445#endif 2876#endif
2446 2877
2447int ecb_cold 2878ecb_cold int
2448ev_version_major (void) EV_THROW 2879ev_version_major (void) EV_NOEXCEPT
2449{ 2880{
2450 return EV_VERSION_MAJOR; 2881 return EV_VERSION_MAJOR;
2451} 2882}
2452 2883
2453int ecb_cold 2884ecb_cold int
2454ev_version_minor (void) EV_THROW 2885ev_version_minor (void) EV_NOEXCEPT
2455{ 2886{
2456 return EV_VERSION_MINOR; 2887 return EV_VERSION_MINOR;
2457} 2888}
2458 2889
2459/* return true if we are running with elevated privileges and should ignore env variables */ 2890/* return true if we are running with elevated privileges and should ignore env variables */
2460int inline_size ecb_cold 2891inline_size ecb_cold int
2461enable_secure (void) 2892enable_secure (void)
2462{ 2893{
2463#ifdef _WIN32 2894#ifdef _WIN32
2464 return 0; 2895 return 0;
2465#else 2896#else
2466 return getuid () != geteuid () 2897 return getuid () != geteuid ()
2467 || getgid () != getegid (); 2898 || getgid () != getegid ();
2468#endif 2899#endif
2469} 2900}
2470 2901
2471unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2472ev_supported_backends (void) EV_THROW 2904ev_supported_backends (void) EV_NOEXCEPT
2473{ 2905{
2474 unsigned int flags = 0; 2906 unsigned int flags = 0;
2475 2907
2476 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2908 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2477 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2909 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2478 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2910 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2911 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2912 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2479 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2913 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2480 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2914 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2481 2915
2482 return flags; 2916 return flags;
2483} 2917}
2484 2918
2485unsigned int ecb_cold 2919ecb_cold
2920unsigned int
2486ev_recommended_backends (void) EV_THROW 2921ev_recommended_backends (void) EV_NOEXCEPT
2487{ 2922{
2488 unsigned int flags = ev_supported_backends (); 2923 unsigned int flags = ev_supported_backends ();
2489 2924
2490#ifndef __NetBSD__ 2925#ifndef __NetBSD__
2491 /* kqueue is borked on everything but netbsd apparently */ 2926 /* kqueue is borked on everything but netbsd apparently */
… …
2499#endif 2934#endif
2500#ifdef __FreeBSD__ 2935#ifdef __FreeBSD__
2501 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2936 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2502#endif 2937#endif
2503 2938
2939 /* TODO: linuxaio is very experimental */
2940#if !EV_RECOMMEND_LINUXAIO
2941 flags &= ~EVBACKEND_LINUXAIO;
2942#endif
2943 /* TODO: linuxaio is super experimental */
2944#if !EV_RECOMMEND_IOURING
2945 flags &= ~EVBACKEND_IOURING;
2946#endif
2947
2504 return flags; 2948 return flags;
2505} 2949}
2506 2950
2507unsigned int ecb_cold 2951ecb_cold
2952unsigned int
2508ev_embeddable_backends (void) EV_THROW 2953ev_embeddable_backends (void) EV_NOEXCEPT
2509{ 2954{
2510 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2955 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2511 2956
2512 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2957 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2513 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2958 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2514 flags &= ~EVBACKEND_EPOLL; 2959 flags &= ~EVBACKEND_EPOLL;
2515 2960
2961 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2962
2963 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2964 * because our backend_fd is the epoll fd we need as fallback.
2965 * if the kernel ever is fixed, this might change...
2966 */
2967
2516 return flags; 2968 return flags;
2517} 2969}
2518 2970
2519unsigned int 2971unsigned int
2520ev_backend (EV_P) EV_THROW 2972ev_backend (EV_P) EV_NOEXCEPT
2521{ 2973{
2522 return backend; 2974 return backend;
2523} 2975}
2524 2976
2525#if EV_FEATURE_API 2977#if EV_FEATURE_API
2526unsigned int 2978unsigned int
2527ev_iteration (EV_P) EV_THROW 2979ev_iteration (EV_P) EV_NOEXCEPT
2528{ 2980{
2529 return loop_count; 2981 return loop_count;
2530} 2982}
2531 2983
2532unsigned int 2984unsigned int
2533ev_depth (EV_P) EV_THROW 2985ev_depth (EV_P) EV_NOEXCEPT
2534{ 2986{
2535 return loop_depth; 2987 return loop_depth;
2536} 2988}
2537 2989
2538void 2990void
2539ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2991ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2540{ 2992{
2541 io_blocktime = interval; 2993 io_blocktime = interval;
2542} 2994}
2543 2995
2544void 2996void
2545ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2997ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2546{ 2998{
2547 timeout_blocktime = interval; 2999 timeout_blocktime = interval;
2548} 3000}
2549 3001
2550void 3002void
2551ev_set_userdata (EV_P_ void *data) EV_THROW 3003ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2552{ 3004{
2553 userdata = data; 3005 userdata = data;
2554} 3006}
2555 3007
2556void * 3008void *
2557ev_userdata (EV_P) EV_THROW 3009ev_userdata (EV_P) EV_NOEXCEPT
2558{ 3010{
2559 return userdata; 3011 return userdata;
2560} 3012}
2561 3013
2562void 3014void
2563ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3015ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2564{ 3016{
2565 invoke_cb = invoke_pending_cb; 3017 invoke_cb = invoke_pending_cb;
2566} 3018}
2567 3019
2568void 3020void
2569ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 3021ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2570{ 3022{
2571 release_cb = release; 3023 release_cb = release;
2572 acquire_cb = acquire; 3024 acquire_cb = acquire;
2573} 3025}
2574#endif 3026#endif
2575 3027
2576/* initialise a loop structure, must be zero-initialised */ 3028/* initialise a loop structure, must be zero-initialised */
2577static void noinline ecb_cold 3029ecb_noinline ecb_cold
3030static void
2578loop_init (EV_P_ unsigned int flags) EV_THROW 3031loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2579{ 3032{
2580 if (!backend) 3033 if (!backend)
2581 { 3034 {
2582 origflags = flags; 3035 origflags = flags;
2583 3036
… …
2641 3094
2642 if (!(flags & EVBACKEND_MASK)) 3095 if (!(flags & EVBACKEND_MASK))
2643 flags |= ev_recommended_backends (); 3096 flags |= ev_recommended_backends ();
2644 3097
2645#if EV_USE_IOCP 3098#if EV_USE_IOCP
2646 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3099 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2647#endif 3100#endif
2648#if EV_USE_PORT 3101#if EV_USE_PORT
2649 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3102 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2650#endif 3103#endif
2651#if EV_USE_KQUEUE 3104#if EV_USE_KQUEUE
2652 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3105 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3106#endif
3107#if EV_USE_IOURING
3108 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3109#endif
3110#if EV_USE_LINUXAIO
3111 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2653#endif 3112#endif
2654#if EV_USE_EPOLL 3113#if EV_USE_EPOLL
2655 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3114 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2656#endif 3115#endif
2657#if EV_USE_POLL 3116#if EV_USE_POLL
2658 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3117 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2659#endif 3118#endif
2660#if EV_USE_SELECT 3119#if EV_USE_SELECT
2661 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3120 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2662#endif 3121#endif
2663 3122
2664 ev_prepare_init (&pending_w, pendingcb); 3123 ev_prepare_init (&pending_w, pendingcb);
2665 3124
2666#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3125#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2669#endif 3128#endif
2670 } 3129 }
2671} 3130}
2672 3131
2673/* free up a loop structure */ 3132/* free up a loop structure */
2674void ecb_cold 3133ecb_cold
3134void
2675ev_loop_destroy (EV_P) 3135ev_loop_destroy (EV_P)
2676{ 3136{
2677 int i; 3137 int i;
2678 3138
2679#if EV_MULTIPLICITY 3139#if EV_MULTIPLICITY
… …
2682 return; 3142 return;
2683#endif 3143#endif
2684 3144
2685#if EV_CLEANUP_ENABLE 3145#if EV_CLEANUP_ENABLE
2686 /* queue cleanup watchers (and execute them) */ 3146 /* queue cleanup watchers (and execute them) */
2687 if (expect_false (cleanupcnt)) 3147 if (ecb_expect_false (cleanupcnt))
2688 { 3148 {
2689 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3149 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2690 EV_INVOKE_PENDING; 3150 EV_INVOKE_PENDING;
2691 } 3151 }
2692#endif 3152#endif
… …
2720 3180
2721 if (backend_fd >= 0) 3181 if (backend_fd >= 0)
2722 close (backend_fd); 3182 close (backend_fd);
2723 3183
2724#if EV_USE_IOCP 3184#if EV_USE_IOCP
2725 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3185 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2726#endif 3186#endif
2727#if EV_USE_PORT 3187#if EV_USE_PORT
2728 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3188 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2729#endif 3189#endif
2730#if EV_USE_KQUEUE 3190#if EV_USE_KQUEUE
2731 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3191 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3192#endif
3193#if EV_USE_IOURING
3194 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3195#endif
3196#if EV_USE_LINUXAIO
3197 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2732#endif 3198#endif
2733#if EV_USE_EPOLL 3199#if EV_USE_EPOLL
2734 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3200 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2735#endif 3201#endif
2736#if EV_USE_POLL 3202#if EV_USE_POLL
2737 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3203 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2738#endif 3204#endif
2739#if EV_USE_SELECT 3205#if EV_USE_SELECT
2740 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3206 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2741#endif 3207#endif
2742 3208
2743 for (i = NUMPRI; i--; ) 3209 for (i = NUMPRI; i--; )
2744 { 3210 {
2745 array_free (pending, [i]); 3211 array_free (pending, [i]);
… …
2787 3253
2788inline_size void 3254inline_size void
2789loop_fork (EV_P) 3255loop_fork (EV_P)
2790{ 3256{
2791#if EV_USE_PORT 3257#if EV_USE_PORT
2792 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3258 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2793#endif 3259#endif
2794#if EV_USE_KQUEUE 3260#if EV_USE_KQUEUE
2795 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3261 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3262#endif
3263#if EV_USE_IOURING
3264 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3265#endif
3266#if EV_USE_LINUXAIO
3267 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2796#endif 3268#endif
2797#if EV_USE_EPOLL 3269#if EV_USE_EPOLL
2798 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3270 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2799#endif 3271#endif
2800#if EV_USE_INOTIFY 3272#if EV_USE_INOTIFY
2801 infy_fork (EV_A); 3273 infy_fork (EV_A);
2802#endif 3274#endif
2803 3275
2804#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3276#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2805 if (ev_is_active (&pipe_w)) 3277 if (ev_is_active (&pipe_w) && postfork != 2)
2806 { 3278 {
2807 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3279 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2808 3280
2809 ev_ref (EV_A); 3281 ev_ref (EV_A);
2810 ev_io_stop (EV_A_ &pipe_w); 3282 ev_io_stop (EV_A_ &pipe_w);
… …
2821 postfork = 0; 3293 postfork = 0;
2822} 3294}
2823 3295
2824#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
2825 3297
3298ecb_cold
2826struct ev_loop * ecb_cold 3299struct ev_loop *
2827ev_loop_new (unsigned int flags) EV_THROW 3300ev_loop_new (unsigned int flags) EV_NOEXCEPT
2828{ 3301{
2829 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3302 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2830 3303
2831 memset (EV_A, 0, sizeof (struct ev_loop)); 3304 memset (EV_A, 0, sizeof (struct ev_loop));
2832 loop_init (EV_A_ flags); 3305 loop_init (EV_A_ flags);
… …
2839} 3312}
2840 3313
2841#endif /* multiplicity */ 3314#endif /* multiplicity */
2842 3315
2843#if EV_VERIFY 3316#if EV_VERIFY
2844static void noinline ecb_cold 3317ecb_noinline ecb_cold
3318static void
2845verify_watcher (EV_P_ W w) 3319verify_watcher (EV_P_ W w)
2846{ 3320{
2847 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3321 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2848 3322
2849 if (w->pending) 3323 if (w->pending)
2850 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3324 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2851} 3325}
2852 3326
2853static void noinline ecb_cold 3327ecb_noinline ecb_cold
3328static void
2854verify_heap (EV_P_ ANHE *heap, int N) 3329verify_heap (EV_P_ ANHE *heap, int N)
2855{ 3330{
2856 int i; 3331 int i;
2857 3332
2858 for (i = HEAP0; i < N + HEAP0; ++i) 3333 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2863 3338
2864 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3339 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2865 } 3340 }
2866} 3341}
2867 3342
2868static void noinline ecb_cold 3343ecb_noinline ecb_cold
3344static void
2869array_verify (EV_P_ W *ws, int cnt) 3345array_verify (EV_P_ W *ws, int cnt)
2870{ 3346{
2871 while (cnt--) 3347 while (cnt--)
2872 { 3348 {
2873 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3349 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2876} 3352}
2877#endif 3353#endif
2878 3354
2879#if EV_FEATURE_API 3355#if EV_FEATURE_API
2880void ecb_cold 3356void ecb_cold
2881ev_verify (EV_P) EV_THROW 3357ev_verify (EV_P) EV_NOEXCEPT
2882{ 3358{
2883#if EV_VERIFY 3359#if EV_VERIFY
2884 int i; 3360 int i;
2885 WL w, w2; 3361 WL w, w2;
2886 3362
… …
2962#endif 3438#endif
2963} 3439}
2964#endif 3440#endif
2965 3441
2966#if EV_MULTIPLICITY 3442#if EV_MULTIPLICITY
3443ecb_cold
2967struct ev_loop * ecb_cold 3444struct ev_loop *
2968#else 3445#else
2969int 3446int
2970#endif 3447#endif
2971ev_default_loop (unsigned int flags) EV_THROW 3448ev_default_loop (unsigned int flags) EV_NOEXCEPT
2972{ 3449{
2973 if (!ev_default_loop_ptr) 3450 if (!ev_default_loop_ptr)
2974 { 3451 {
2975#if EV_MULTIPLICITY 3452#if EV_MULTIPLICITY
2976 EV_P = ev_default_loop_ptr = &default_loop_struct; 3453 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2995 3472
2996 return ev_default_loop_ptr; 3473 return ev_default_loop_ptr;
2997} 3474}
2998 3475
2999void 3476void
3000ev_loop_fork (EV_P) EV_THROW 3477ev_loop_fork (EV_P) EV_NOEXCEPT
3001{ 3478{
3002 postfork = 1; 3479 postfork = 1;
3003} 3480}
3004 3481
3005/*****************************************************************************/ 3482/*****************************************************************************/
… …
3009{ 3486{
3010 EV_CB_INVOKE ((W)w, revents); 3487 EV_CB_INVOKE ((W)w, revents);
3011} 3488}
3012 3489
3013unsigned int 3490unsigned int
3014ev_pending_count (EV_P) EV_THROW 3491ev_pending_count (EV_P) EV_NOEXCEPT
3015{ 3492{
3016 int pri; 3493 int pri;
3017 unsigned int count = 0; 3494 unsigned int count = 0;
3018 3495
3019 for (pri = NUMPRI; pri--; ) 3496 for (pri = NUMPRI; pri--; )
3020 count += pendingcnt [pri]; 3497 count += pendingcnt [pri];
3021 3498
3022 return count; 3499 return count;
3023} 3500}
3024 3501
3025void noinline 3502ecb_noinline
3503void
3026ev_invoke_pending (EV_P) 3504ev_invoke_pending (EV_P)
3027{ 3505{
3028 pendingpri = NUMPRI; 3506 pendingpri = NUMPRI;
3029 3507
3030 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3508 do
3031 { 3509 {
3032 --pendingpri; 3510 --pendingpri;
3033 3511
3512 /* pendingpri possibly gets modified in the inner loop */
3034 while (pendingcnt [pendingpri]) 3513 while (pendingcnt [pendingpri])
3035 { 3514 {
3036 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3515 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3037 3516
3038 p->w->pending = 0; 3517 p->w->pending = 0;
3039 EV_CB_INVOKE (p->w, p->events); 3518 EV_CB_INVOKE (p->w, p->events);
3040 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
3041 } 3520 }
3042 } 3521 }
3522 while (pendingpri);
3043} 3523}
3044 3524
3045#if EV_IDLE_ENABLE 3525#if EV_IDLE_ENABLE
3046/* make idle watchers pending. this handles the "call-idle */ 3526/* make idle watchers pending. this handles the "call-idle */
3047/* only when higher priorities are idle" logic */ 3527/* only when higher priorities are idle" logic */
3048inline_size void 3528inline_size void
3049idle_reify (EV_P) 3529idle_reify (EV_P)
3050{ 3530{
3051 if (expect_false (idleall)) 3531 if (ecb_expect_false (idleall))
3052 { 3532 {
3053 int pri; 3533 int pri;
3054 3534
3055 for (pri = NUMPRI; pri--; ) 3535 for (pri = NUMPRI; pri--; )
3056 { 3536 {
… …
3086 { 3566 {
3087 ev_at (w) += w->repeat; 3567 ev_at (w) += w->repeat;
3088 if (ev_at (w) < mn_now) 3568 if (ev_at (w) < mn_now)
3089 ev_at (w) = mn_now; 3569 ev_at (w) = mn_now;
3090 3570
3091 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3571 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3092 3572
3093 ANHE_at_cache (timers [HEAP0]); 3573 ANHE_at_cache (timers [HEAP0]);
3094 downheap (timers, timercnt, HEAP0); 3574 downheap (timers, timercnt, HEAP0);
3095 } 3575 }
3096 else 3576 else
… …
3105 } 3585 }
3106} 3586}
3107 3587
3108#if EV_PERIODIC_ENABLE 3588#if EV_PERIODIC_ENABLE
3109 3589
3110static void noinline 3590ecb_noinline
3591static void
3111periodic_recalc (EV_P_ ev_periodic *w) 3592periodic_recalc (EV_P_ ev_periodic *w)
3112{ 3593{
3113 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3594 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3114 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3595 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3115 3596
… …
3117 while (at <= ev_rt_now) 3598 while (at <= ev_rt_now)
3118 { 3599 {
3119 ev_tstamp nat = at + w->interval; 3600 ev_tstamp nat = at + w->interval;
3120 3601
3121 /* when resolution fails us, we use ev_rt_now */ 3602 /* when resolution fails us, we use ev_rt_now */
3122 if (expect_false (nat == at)) 3603 if (ecb_expect_false (nat == at))
3123 { 3604 {
3124 at = ev_rt_now; 3605 at = ev_rt_now;
3125 break; 3606 break;
3126 } 3607 }
3127 3608
… …
3173 } 3654 }
3174} 3655}
3175 3656
3176/* simply recalculate all periodics */ 3657/* simply recalculate all periodics */
3177/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3658/* TODO: maybe ensure that at least one event happens when jumping forward? */
3178static void noinline ecb_cold 3659ecb_noinline ecb_cold
3660static void
3179periodics_reschedule (EV_P) 3661periodics_reschedule (EV_P)
3180{ 3662{
3181 int i; 3663 int i;
3182 3664
3183 /* adjust periodics after time jump */ 3665 /* adjust periodics after time jump */
… …
3196 reheap (periodics, periodiccnt); 3678 reheap (periodics, periodiccnt);
3197} 3679}
3198#endif 3680#endif
3199 3681
3200/* adjust all timers by a given offset */ 3682/* adjust all timers by a given offset */
3201static void noinline ecb_cold 3683ecb_noinline ecb_cold
3684static void
3202timers_reschedule (EV_P_ ev_tstamp adjust) 3685timers_reschedule (EV_P_ ev_tstamp adjust)
3203{ 3686{
3204 int i; 3687 int i;
3205 3688
3206 for (i = 0; i < timercnt; ++i) 3689 for (i = 0; i < timercnt; ++i)
… …
3215/* also detect if there was a timejump, and act accordingly */ 3698/* also detect if there was a timejump, and act accordingly */
3216inline_speed void 3699inline_speed void
3217time_update (EV_P_ ev_tstamp max_block) 3700time_update (EV_P_ ev_tstamp max_block)
3218{ 3701{
3219#if EV_USE_MONOTONIC 3702#if EV_USE_MONOTONIC
3220 if (expect_true (have_monotonic)) 3703 if (ecb_expect_true (have_monotonic))
3221 { 3704 {
3222 int i; 3705 int i;
3223 ev_tstamp odiff = rtmn_diff; 3706 ev_tstamp odiff = rtmn_diff;
3224 3707
3225 mn_now = get_clock (); 3708 mn_now = get_clock ();
3226 3709
3227 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3710 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3228 /* interpolate in the meantime */ 3711 /* interpolate in the meantime */
3229 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3712 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3230 { 3713 {
3231 ev_rt_now = rtmn_diff + mn_now; 3714 ev_rt_now = rtmn_diff + mn_now;
3232 return; 3715 return;
3233 } 3716 }
3234 3717
… …
3248 ev_tstamp diff; 3731 ev_tstamp diff;
3249 rtmn_diff = ev_rt_now - mn_now; 3732 rtmn_diff = ev_rt_now - mn_now;
3250 3733
3251 diff = odiff - rtmn_diff; 3734 diff = odiff - rtmn_diff;
3252 3735
3253 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3736 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3254 return; /* all is well */ 3737 return; /* all is well */
3255 3738
3256 ev_rt_now = ev_time (); 3739 ev_rt_now = ev_time ();
3257 mn_now = get_clock (); 3740 mn_now = get_clock ();
3258 now_floor = mn_now; 3741 now_floor = mn_now;
… …
3267 else 3750 else
3268#endif 3751#endif
3269 { 3752 {
3270 ev_rt_now = ev_time (); 3753 ev_rt_now = ev_time ();
3271 3754
3272 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3755 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3273 { 3756 {
3274 /* adjust timers. this is easy, as the offset is the same for all of them */ 3757 /* adjust timers. this is easy, as the offset is the same for all of them */
3275 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3758 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3276#if EV_PERIODIC_ENABLE 3759#if EV_PERIODIC_ENABLE
3277 periodics_reschedule (EV_A); 3760 periodics_reschedule (EV_A);
… …
3300#if EV_VERIFY >= 2 3783#if EV_VERIFY >= 2
3301 ev_verify (EV_A); 3784 ev_verify (EV_A);
3302#endif 3785#endif
3303 3786
3304#ifndef _WIN32 3787#ifndef _WIN32
3305 if (expect_false (curpid)) /* penalise the forking check even more */ 3788 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3306 if (expect_false (getpid () != curpid)) 3789 if (ecb_expect_false (getpid () != curpid))
3307 { 3790 {
3308 curpid = getpid (); 3791 curpid = getpid ();
3309 postfork = 1; 3792 postfork = 1;
3310 } 3793 }
3311#endif 3794#endif
3312 3795
3313#if EV_FORK_ENABLE 3796#if EV_FORK_ENABLE
3314 /* we might have forked, so queue fork handlers */ 3797 /* we might have forked, so queue fork handlers */
3315 if (expect_false (postfork)) 3798 if (ecb_expect_false (postfork))
3316 if (forkcnt) 3799 if (forkcnt)
3317 { 3800 {
3318 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3801 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3319 EV_INVOKE_PENDING; 3802 EV_INVOKE_PENDING;
3320 } 3803 }
3321#endif 3804#endif
3322 3805
3323#if EV_PREPARE_ENABLE 3806#if EV_PREPARE_ENABLE
3324 /* queue prepare watchers (and execute them) */ 3807 /* queue prepare watchers (and execute them) */
3325 if (expect_false (preparecnt)) 3808 if (ecb_expect_false (preparecnt))
3326 { 3809 {
3327 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3810 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3328 EV_INVOKE_PENDING; 3811 EV_INVOKE_PENDING;
3329 } 3812 }
3330#endif 3813#endif
3331 3814
3332 if (expect_false (loop_done)) 3815 if (ecb_expect_false (loop_done))
3333 break; 3816 break;
3334 3817
3335 /* we might have forked, so reify kernel state if necessary */ 3818 /* we might have forked, so reify kernel state if necessary */
3336 if (expect_false (postfork)) 3819 if (ecb_expect_false (postfork))
3337 loop_fork (EV_A); 3820 loop_fork (EV_A);
3338 3821
3339 /* update fd-related kernel structures */ 3822 /* update fd-related kernel structures */
3340 fd_reify (EV_A); 3823 fd_reify (EV_A);
3341 3824
… …
3346 3829
3347 /* remember old timestamp for io_blocktime calculation */ 3830 /* remember old timestamp for io_blocktime calculation */
3348 ev_tstamp prev_mn_now = mn_now; 3831 ev_tstamp prev_mn_now = mn_now;
3349 3832
3350 /* update time to cancel out callback processing overhead */ 3833 /* update time to cancel out callback processing overhead */
3351 time_update (EV_A_ 1e100); 3834 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3352 3835
3353 /* from now on, we want a pipe-wake-up */ 3836 /* from now on, we want a pipe-wake-up */
3354 pipe_write_wanted = 1; 3837 pipe_write_wanted = 1;
3355 3838
3356 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3839 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3357 3840
3358 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3841 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3359 { 3842 {
3360 waittime = MAX_BLOCKTIME; 3843 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3361 3844
3362 if (timercnt) 3845 if (timercnt)
3363 { 3846 {
3364 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3847 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3365 if (waittime > to) waittime = to; 3848 if (waittime > to) waittime = to;
… …
3372 if (waittime > to) waittime = to; 3855 if (waittime > to) waittime = to;
3373 } 3856 }
3374#endif 3857#endif
3375 3858
3376 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3859 /* don't let timeouts decrease the waittime below timeout_blocktime */
3377 if (expect_false (waittime < timeout_blocktime)) 3860 if (ecb_expect_false (waittime < timeout_blocktime))
3378 waittime = timeout_blocktime; 3861 waittime = timeout_blocktime;
3379 3862
3380 /* at this point, we NEED to wait, so we have to ensure */ 3863 /* at this point, we NEED to wait, so we have to ensure */
3381 /* to pass a minimum nonzero value to the backend */ 3864 /* to pass a minimum nonzero value to the backend */
3382 if (expect_false (waittime < backend_mintime)) 3865 if (ecb_expect_false (waittime < backend_mintime))
3383 waittime = backend_mintime; 3866 waittime = backend_mintime;
3384 3867
3385 /* extra check because io_blocktime is commonly 0 */ 3868 /* extra check because io_blocktime is commonly 0 */
3386 if (expect_false (io_blocktime)) 3869 if (ecb_expect_false (io_blocktime))
3387 { 3870 {
3388 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3871 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3389 3872
3390 if (sleeptime > waittime - backend_mintime) 3873 if (sleeptime > waittime - backend_mintime)
3391 sleeptime = waittime - backend_mintime; 3874 sleeptime = waittime - backend_mintime;
3392 3875
3393 if (expect_true (sleeptime > 0.)) 3876 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3394 { 3877 {
3395 ev_sleep (sleeptime); 3878 ev_sleep (sleeptime);
3396 waittime -= sleeptime; 3879 waittime -= sleeptime;
3397 } 3880 }
3398 } 3881 }
… …
3412 { 3895 {
3413 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3896 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3414 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3897 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3415 } 3898 }
3416 3899
3417
3418 /* update ev_rt_now, do magic */ 3900 /* update ev_rt_now, do magic */
3419 time_update (EV_A_ waittime + sleeptime); 3901 time_update (EV_A_ waittime + sleeptime);
3420 } 3902 }
3421 3903
3422 /* queue pending timers and reschedule them */ 3904 /* queue pending timers and reschedule them */
… …
3430 idle_reify (EV_A); 3912 idle_reify (EV_A);
3431#endif 3913#endif
3432 3914
3433#if EV_CHECK_ENABLE 3915#if EV_CHECK_ENABLE
3434 /* queue check watchers, to be executed first */ 3916 /* queue check watchers, to be executed first */
3435 if (expect_false (checkcnt)) 3917 if (ecb_expect_false (checkcnt))
3436 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3918 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3437#endif 3919#endif
3438 3920
3439 EV_INVOKE_PENDING; 3921 EV_INVOKE_PENDING;
3440 } 3922 }
3441 while (expect_true ( 3923 while (ecb_expect_true (
3442 activecnt 3924 activecnt
3443 && !loop_done 3925 && !loop_done
3444 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3926 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3445 )); 3927 ));
3446 3928
… …
3453 3935
3454 return activecnt; 3936 return activecnt;
3455} 3937}
3456 3938
3457void 3939void
3458ev_break (EV_P_ int how) EV_THROW 3940ev_break (EV_P_ int how) EV_NOEXCEPT
3459{ 3941{
3460 loop_done = how; 3942 loop_done = how;
3461} 3943}
3462 3944
3463void 3945void
3464ev_ref (EV_P) EV_THROW 3946ev_ref (EV_P) EV_NOEXCEPT
3465{ 3947{
3466 ++activecnt; 3948 ++activecnt;
3467} 3949}
3468 3950
3469void 3951void
3470ev_unref (EV_P) EV_THROW 3952ev_unref (EV_P) EV_NOEXCEPT
3471{ 3953{
3472 --activecnt; 3954 --activecnt;
3473} 3955}
3474 3956
3475void 3957void
3476ev_now_update (EV_P) EV_THROW 3958ev_now_update (EV_P) EV_NOEXCEPT
3477{ 3959{
3478 time_update (EV_A_ 1e100); 3960 time_update (EV_A_ EV_TSTAMP_HUGE);
3479} 3961}
3480 3962
3481void 3963void
3482ev_suspend (EV_P) EV_THROW 3964ev_suspend (EV_P) EV_NOEXCEPT
3483{ 3965{
3484 ev_now_update (EV_A); 3966 ev_now_update (EV_A);
3485} 3967}
3486 3968
3487void 3969void
3488ev_resume (EV_P) EV_THROW 3970ev_resume (EV_P) EV_NOEXCEPT
3489{ 3971{
3490 ev_tstamp mn_prev = mn_now; 3972 ev_tstamp mn_prev = mn_now;
3491 3973
3492 ev_now_update (EV_A); 3974 ev_now_update (EV_A);
3493 timers_reschedule (EV_A_ mn_now - mn_prev); 3975 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3510inline_size void 3992inline_size void
3511wlist_del (WL *head, WL elem) 3993wlist_del (WL *head, WL elem)
3512{ 3994{
3513 while (*head) 3995 while (*head)
3514 { 3996 {
3515 if (expect_true (*head == elem)) 3997 if (ecb_expect_true (*head == elem))
3516 { 3998 {
3517 *head = elem->next; 3999 *head = elem->next;
3518 break; 4000 break;
3519 } 4001 }
3520 4002
… …
3532 w->pending = 0; 4014 w->pending = 0;
3533 } 4015 }
3534} 4016}
3535 4017
3536int 4018int
3537ev_clear_pending (EV_P_ void *w) EV_THROW 4019ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3538{ 4020{
3539 W w_ = (W)w; 4021 W w_ = (W)w;
3540 int pending = w_->pending; 4022 int pending = w_->pending;
3541 4023
3542 if (expect_true (pending)) 4024 if (ecb_expect_true (pending))
3543 { 4025 {
3544 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4026 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3545 p->w = (W)&pending_w; 4027 p->w = (W)&pending_w;
3546 w_->pending = 0; 4028 w_->pending = 0;
3547 return p->events; 4029 return p->events;
… …
3574 w->active = 0; 4056 w->active = 0;
3575} 4057}
3576 4058
3577/*****************************************************************************/ 4059/*****************************************************************************/
3578 4060
3579void noinline 4061ecb_noinline
4062void
3580ev_io_start (EV_P_ ev_io *w) EV_THROW 4063ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3581{ 4064{
3582 int fd = w->fd; 4065 int fd = w->fd;
3583 4066
3584 if (expect_false (ev_is_active (w))) 4067 if (ecb_expect_false (ev_is_active (w)))
3585 return; 4068 return;
3586 4069
3587 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4070 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3588 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4071 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3589 4072
4073#if EV_VERIFY >= 2
4074 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4075#endif
3590 EV_FREQUENT_CHECK; 4076 EV_FREQUENT_CHECK;
3591 4077
3592 ev_start (EV_A_ (W)w, 1); 4078 ev_start (EV_A_ (W)w, 1);
3593 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4079 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3594 wlist_add (&anfds[fd].head, (WL)w); 4080 wlist_add (&anfds[fd].head, (WL)w);
3595 4081
3596 /* common bug, apparently */ 4082 /* common bug, apparently */
3597 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4083 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3598 4084
… …
3600 w->events &= ~EV__IOFDSET; 4086 w->events &= ~EV__IOFDSET;
3601 4087
3602 EV_FREQUENT_CHECK; 4088 EV_FREQUENT_CHECK;
3603} 4089}
3604 4090
3605void noinline 4091ecb_noinline
4092void
3606ev_io_stop (EV_P_ ev_io *w) EV_THROW 4093ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3607{ 4094{
3608 clear_pending (EV_A_ (W)w); 4095 clear_pending (EV_A_ (W)w);
3609 if (expect_false (!ev_is_active (w))) 4096 if (ecb_expect_false (!ev_is_active (w)))
3610 return; 4097 return;
3611 4098
3612 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4099 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3613 4100
4101#if EV_VERIFY >= 2
4102 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4103#endif
3614 EV_FREQUENT_CHECK; 4104 EV_FREQUENT_CHECK;
3615 4105
3616 wlist_del (&anfds[w->fd].head, (WL)w); 4106 wlist_del (&anfds[w->fd].head, (WL)w);
3617 ev_stop (EV_A_ (W)w); 4107 ev_stop (EV_A_ (W)w);
3618 4108
3619 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4109 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3620 4110
3621 EV_FREQUENT_CHECK; 4111 EV_FREQUENT_CHECK;
3622} 4112}
3623 4113
3624void noinline 4114ecb_noinline
4115void
3625ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4116ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3626{ 4117{
3627 if (expect_false (ev_is_active (w))) 4118 if (ecb_expect_false (ev_is_active (w)))
3628 return; 4119 return;
3629 4120
3630 ev_at (w) += mn_now; 4121 ev_at (w) += mn_now;
3631 4122
3632 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4123 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3633 4124
3634 EV_FREQUENT_CHECK; 4125 EV_FREQUENT_CHECK;
3635 4126
3636 ++timercnt; 4127 ++timercnt;
3637 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4128 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3638 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4129 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3639 ANHE_w (timers [ev_active (w)]) = (WT)w; 4130 ANHE_w (timers [ev_active (w)]) = (WT)w;
3640 ANHE_at_cache (timers [ev_active (w)]); 4131 ANHE_at_cache (timers [ev_active (w)]);
3641 upheap (timers, ev_active (w)); 4132 upheap (timers, ev_active (w));
3642 4133
3643 EV_FREQUENT_CHECK; 4134 EV_FREQUENT_CHECK;
3644 4135
3645 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4136 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3646} 4137}
3647 4138
3648void noinline 4139ecb_noinline
4140void
3649ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4141ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3650{ 4142{
3651 clear_pending (EV_A_ (W)w); 4143 clear_pending (EV_A_ (W)w);
3652 if (expect_false (!ev_is_active (w))) 4144 if (ecb_expect_false (!ev_is_active (w)))
3653 return; 4145 return;
3654 4146
3655 EV_FREQUENT_CHECK; 4147 EV_FREQUENT_CHECK;
3656 4148
3657 { 4149 {
… …
3659 4151
3660 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4152 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3661 4153
3662 --timercnt; 4154 --timercnt;
3663 4155
3664 if (expect_true (active < timercnt + HEAP0)) 4156 if (ecb_expect_true (active < timercnt + HEAP0))
3665 { 4157 {
3666 timers [active] = timers [timercnt + HEAP0]; 4158 timers [active] = timers [timercnt + HEAP0];
3667 adjustheap (timers, timercnt, active); 4159 adjustheap (timers, timercnt, active);
3668 } 4160 }
3669 } 4161 }
… …
3673 ev_stop (EV_A_ (W)w); 4165 ev_stop (EV_A_ (W)w);
3674 4166
3675 EV_FREQUENT_CHECK; 4167 EV_FREQUENT_CHECK;
3676} 4168}
3677 4169
3678void noinline 4170ecb_noinline
4171void
3679ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4172ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3680{ 4173{
3681 EV_FREQUENT_CHECK; 4174 EV_FREQUENT_CHECK;
3682 4175
3683 clear_pending (EV_A_ (W)w); 4176 clear_pending (EV_A_ (W)w);
3684 4177
… …
3701 4194
3702 EV_FREQUENT_CHECK; 4195 EV_FREQUENT_CHECK;
3703} 4196}
3704 4197
3705ev_tstamp 4198ev_tstamp
3706ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4199ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3707{ 4200{
3708 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4201 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3709} 4202}
3710 4203
3711#if EV_PERIODIC_ENABLE 4204#if EV_PERIODIC_ENABLE
3712void noinline 4205ecb_noinline
4206void
3713ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4207ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3714{ 4208{
3715 if (expect_false (ev_is_active (w))) 4209 if (ecb_expect_false (ev_is_active (w)))
3716 return; 4210 return;
3717 4211
3718 if (w->reschedule_cb) 4212 if (w->reschedule_cb)
3719 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4213 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3720 else if (w->interval) 4214 else if (w->interval)
… …
3727 4221
3728 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3729 4223
3730 ++periodiccnt; 4224 ++periodiccnt;
3731 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4225 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3732 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4226 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3733 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4227 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3734 ANHE_at_cache (periodics [ev_active (w)]); 4228 ANHE_at_cache (periodics [ev_active (w)]);
3735 upheap (periodics, ev_active (w)); 4229 upheap (periodics, ev_active (w));
3736 4230
3737 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
3738 4232
3739 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4233 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3740} 4234}
3741 4235
3742void noinline 4236ecb_noinline
4237void
3743ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4238ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3744{ 4239{
3745 clear_pending (EV_A_ (W)w); 4240 clear_pending (EV_A_ (W)w);
3746 if (expect_false (!ev_is_active (w))) 4241 if (ecb_expect_false (!ev_is_active (w)))
3747 return; 4242 return;
3748 4243
3749 EV_FREQUENT_CHECK; 4244 EV_FREQUENT_CHECK;
3750 4245
3751 { 4246 {
… …
3753 4248
3754 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4249 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3755 4250
3756 --periodiccnt; 4251 --periodiccnt;
3757 4252
3758 if (expect_true (active < periodiccnt + HEAP0)) 4253 if (ecb_expect_true (active < periodiccnt + HEAP0))
3759 { 4254 {
3760 periodics [active] = periodics [periodiccnt + HEAP0]; 4255 periodics [active] = periodics [periodiccnt + HEAP0];
3761 adjustheap (periodics, periodiccnt, active); 4256 adjustheap (periodics, periodiccnt, active);
3762 } 4257 }
3763 } 4258 }
… …
3765 ev_stop (EV_A_ (W)w); 4260 ev_stop (EV_A_ (W)w);
3766 4261
3767 EV_FREQUENT_CHECK; 4262 EV_FREQUENT_CHECK;
3768} 4263}
3769 4264
3770void noinline 4265ecb_noinline
4266void
3771ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4267ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3772{ 4268{
3773 /* TODO: use adjustheap and recalculation */ 4269 /* TODO: use adjustheap and recalculation */
3774 ev_periodic_stop (EV_A_ w); 4270 ev_periodic_stop (EV_A_ w);
3775 ev_periodic_start (EV_A_ w); 4271 ev_periodic_start (EV_A_ w);
3776} 4272}
… …
3780# define SA_RESTART 0 4276# define SA_RESTART 0
3781#endif 4277#endif
3782 4278
3783#if EV_SIGNAL_ENABLE 4279#if EV_SIGNAL_ENABLE
3784 4280
3785void noinline 4281ecb_noinline
4282void
3786ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4283ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3787{ 4284{
3788 if (expect_false (ev_is_active (w))) 4285 if (ecb_expect_false (ev_is_active (w)))
3789 return; 4286 return;
3790 4287
3791 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4288 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3792 4289
3793#if EV_MULTIPLICITY 4290#if EV_MULTIPLICITY
… …
3862 } 4359 }
3863 4360
3864 EV_FREQUENT_CHECK; 4361 EV_FREQUENT_CHECK;
3865} 4362}
3866 4363
3867void noinline 4364ecb_noinline
4365void
3868ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4366ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3869{ 4367{
3870 clear_pending (EV_A_ (W)w); 4368 clear_pending (EV_A_ (W)w);
3871 if (expect_false (!ev_is_active (w))) 4369 if (ecb_expect_false (!ev_is_active (w)))
3872 return; 4370 return;
3873 4371
3874 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
3875 4373
3876 wlist_del (&signals [w->signum - 1].head, (WL)w); 4374 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3904#endif 4402#endif
3905 4403
3906#if EV_CHILD_ENABLE 4404#if EV_CHILD_ENABLE
3907 4405
3908void 4406void
3909ev_child_start (EV_P_ ev_child *w) EV_THROW 4407ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3910{ 4408{
3911#if EV_MULTIPLICITY 4409#if EV_MULTIPLICITY
3912 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4410 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3913#endif 4411#endif
3914 if (expect_false (ev_is_active (w))) 4412 if (ecb_expect_false (ev_is_active (w)))
3915 return; 4413 return;
3916 4414
3917 EV_FREQUENT_CHECK; 4415 EV_FREQUENT_CHECK;
3918 4416
3919 ev_start (EV_A_ (W)w, 1); 4417 ev_start (EV_A_ (W)w, 1);
… …
3921 4419
3922 EV_FREQUENT_CHECK; 4420 EV_FREQUENT_CHECK;
3923} 4421}
3924 4422
3925void 4423void
3926ev_child_stop (EV_P_ ev_child *w) EV_THROW 4424ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3927{ 4425{
3928 clear_pending (EV_A_ (W)w); 4426 clear_pending (EV_A_ (W)w);
3929 if (expect_false (!ev_is_active (w))) 4427 if (ecb_expect_false (!ev_is_active (w)))
3930 return; 4428 return;
3931 4429
3932 EV_FREQUENT_CHECK; 4430 EV_FREQUENT_CHECK;
3933 4431
3934 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4432 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3948 4446
3949#define DEF_STAT_INTERVAL 5.0074891 4447#define DEF_STAT_INTERVAL 5.0074891
3950#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4448#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3951#define MIN_STAT_INTERVAL 0.1074891 4449#define MIN_STAT_INTERVAL 0.1074891
3952 4450
3953static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4451ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3954 4452
3955#if EV_USE_INOTIFY 4453#if EV_USE_INOTIFY
3956 4454
3957/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4455/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3958# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4456# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3959 4457
3960static void noinline 4458ecb_noinline
4459static void
3961infy_add (EV_P_ ev_stat *w) 4460infy_add (EV_P_ ev_stat *w)
3962{ 4461{
3963 w->wd = inotify_add_watch (fs_fd, w->path, 4462 w->wd = inotify_add_watch (fs_fd, w->path,
3964 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4463 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3965 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4464 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4029 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4528 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4030 ev_timer_again (EV_A_ &w->timer); 4529 ev_timer_again (EV_A_ &w->timer);
4031 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4530 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4032} 4531}
4033 4532
4034static void noinline 4533ecb_noinline
4534static void
4035infy_del (EV_P_ ev_stat *w) 4535infy_del (EV_P_ ev_stat *w)
4036{ 4536{
4037 int slot; 4537 int slot;
4038 int wd = w->wd; 4538 int wd = w->wd;
4039 4539
… …
4046 4546
4047 /* remove this watcher, if others are watching it, they will rearm */ 4547 /* remove this watcher, if others are watching it, they will rearm */
4048 inotify_rm_watch (fs_fd, wd); 4548 inotify_rm_watch (fs_fd, wd);
4049} 4549}
4050 4550
4051static void noinline 4551ecb_noinline
4552static void
4052infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4553infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4053{ 4554{
4054 if (slot < 0) 4555 if (slot < 0)
4055 /* overflow, need to check for all hash slots */ 4556 /* overflow, need to check for all hash slots */
4056 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4557 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4092 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4593 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4093 ofs += sizeof (struct inotify_event) + ev->len; 4594 ofs += sizeof (struct inotify_event) + ev->len;
4094 } 4595 }
4095} 4596}
4096 4597
4097inline_size void ecb_cold 4598inline_size ecb_cold
4599void
4098ev_check_2625 (EV_P) 4600ev_check_2625 (EV_P)
4099{ 4601{
4100 /* kernels < 2.6.25 are borked 4602 /* kernels < 2.6.25 are borked
4101 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4603 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4102 */ 4604 */
… …
4192#else 4694#else
4193# define EV_LSTAT(p,b) lstat (p, b) 4695# define EV_LSTAT(p,b) lstat (p, b)
4194#endif 4696#endif
4195 4697
4196void 4698void
4197ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4699ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4198{ 4700{
4199 if (lstat (w->path, &w->attr) < 0) 4701 if (lstat (w->path, &w->attr) < 0)
4200 w->attr.st_nlink = 0; 4702 w->attr.st_nlink = 0;
4201 else if (!w->attr.st_nlink) 4703 else if (!w->attr.st_nlink)
4202 w->attr.st_nlink = 1; 4704 w->attr.st_nlink = 1;
4203} 4705}
4204 4706
4205static void noinline 4707ecb_noinline
4708static void
4206stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4709stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4207{ 4710{
4208 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4711 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4209 4712
4210 ev_statdata prev = w->attr; 4713 ev_statdata prev = w->attr;
… …
4241 ev_feed_event (EV_A_ w, EV_STAT); 4744 ev_feed_event (EV_A_ w, EV_STAT);
4242 } 4745 }
4243} 4746}
4244 4747
4245void 4748void
4246ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4749ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4247{ 4750{
4248 if (expect_false (ev_is_active (w))) 4751 if (ecb_expect_false (ev_is_active (w)))
4249 return; 4752 return;
4250 4753
4251 ev_stat_stat (EV_A_ w); 4754 ev_stat_stat (EV_A_ w);
4252 4755
4253 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4756 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4272 4775
4273 EV_FREQUENT_CHECK; 4776 EV_FREQUENT_CHECK;
4274} 4777}
4275 4778
4276void 4779void
4277ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4780ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4278{ 4781{
4279 clear_pending (EV_A_ (W)w); 4782 clear_pending (EV_A_ (W)w);
4280 if (expect_false (!ev_is_active (w))) 4783 if (ecb_expect_false (!ev_is_active (w)))
4281 return; 4784 return;
4282 4785
4283 EV_FREQUENT_CHECK; 4786 EV_FREQUENT_CHECK;
4284 4787
4285#if EV_USE_INOTIFY 4788#if EV_USE_INOTIFY
… …
4298} 4801}
4299#endif 4802#endif
4300 4803
4301#if EV_IDLE_ENABLE 4804#if EV_IDLE_ENABLE
4302void 4805void
4303ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4806ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4304{ 4807{
4305 if (expect_false (ev_is_active (w))) 4808 if (ecb_expect_false (ev_is_active (w)))
4306 return; 4809 return;
4307 4810
4308 pri_adjust (EV_A_ (W)w); 4811 pri_adjust (EV_A_ (W)w);
4309 4812
4310 EV_FREQUENT_CHECK; 4813 EV_FREQUENT_CHECK;
… …
4313 int active = ++idlecnt [ABSPRI (w)]; 4816 int active = ++idlecnt [ABSPRI (w)];
4314 4817
4315 ++idleall; 4818 ++idleall;
4316 ev_start (EV_A_ (W)w, active); 4819 ev_start (EV_A_ (W)w, active);
4317 4820
4318 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4821 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4319 idles [ABSPRI (w)][active - 1] = w; 4822 idles [ABSPRI (w)][active - 1] = w;
4320 } 4823 }
4321 4824
4322 EV_FREQUENT_CHECK; 4825 EV_FREQUENT_CHECK;
4323} 4826}
4324 4827
4325void 4828void
4326ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4829ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4327{ 4830{
4328 clear_pending (EV_A_ (W)w); 4831 clear_pending (EV_A_ (W)w);
4329 if (expect_false (!ev_is_active (w))) 4832 if (ecb_expect_false (!ev_is_active (w)))
4330 return; 4833 return;
4331 4834
4332 EV_FREQUENT_CHECK; 4835 EV_FREQUENT_CHECK;
4333 4836
4334 { 4837 {
… …
4345} 4848}
4346#endif 4849#endif
4347 4850
4348#if EV_PREPARE_ENABLE 4851#if EV_PREPARE_ENABLE
4349void 4852void
4350ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4853ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4351{ 4854{
4352 if (expect_false (ev_is_active (w))) 4855 if (ecb_expect_false (ev_is_active (w)))
4353 return; 4856 return;
4354 4857
4355 EV_FREQUENT_CHECK; 4858 EV_FREQUENT_CHECK;
4356 4859
4357 ev_start (EV_A_ (W)w, ++preparecnt); 4860 ev_start (EV_A_ (W)w, ++preparecnt);
4358 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4861 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4359 prepares [preparecnt - 1] = w; 4862 prepares [preparecnt - 1] = w;
4360 4863
4361 EV_FREQUENT_CHECK; 4864 EV_FREQUENT_CHECK;
4362} 4865}
4363 4866
4364void 4867void
4365ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4868ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4366{ 4869{
4367 clear_pending (EV_A_ (W)w); 4870 clear_pending (EV_A_ (W)w);
4368 if (expect_false (!ev_is_active (w))) 4871 if (ecb_expect_false (!ev_is_active (w)))
4369 return; 4872 return;
4370 4873
4371 EV_FREQUENT_CHECK; 4874 EV_FREQUENT_CHECK;
4372 4875
4373 { 4876 {
… …
4383} 4886}
4384#endif 4887#endif
4385 4888
4386#if EV_CHECK_ENABLE 4889#if EV_CHECK_ENABLE
4387void 4890void
4388ev_check_start (EV_P_ ev_check *w) EV_THROW 4891ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4389{ 4892{
4390 if (expect_false (ev_is_active (w))) 4893 if (ecb_expect_false (ev_is_active (w)))
4391 return; 4894 return;
4392 4895
4393 EV_FREQUENT_CHECK; 4896 EV_FREQUENT_CHECK;
4394 4897
4395 ev_start (EV_A_ (W)w, ++checkcnt); 4898 ev_start (EV_A_ (W)w, ++checkcnt);
4396 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4899 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4397 checks [checkcnt - 1] = w; 4900 checks [checkcnt - 1] = w;
4398 4901
4399 EV_FREQUENT_CHECK; 4902 EV_FREQUENT_CHECK;
4400} 4903}
4401 4904
4402void 4905void
4403ev_check_stop (EV_P_ ev_check *w) EV_THROW 4906ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4404{ 4907{
4405 clear_pending (EV_A_ (W)w); 4908 clear_pending (EV_A_ (W)w);
4406 if (expect_false (!ev_is_active (w))) 4909 if (ecb_expect_false (!ev_is_active (w)))
4407 return; 4910 return;
4408 4911
4409 EV_FREQUENT_CHECK; 4912 EV_FREQUENT_CHECK;
4410 4913
4411 { 4914 {
… …
4420 EV_FREQUENT_CHECK; 4923 EV_FREQUENT_CHECK;
4421} 4924}
4422#endif 4925#endif
4423 4926
4424#if EV_EMBED_ENABLE 4927#if EV_EMBED_ENABLE
4425void noinline 4928ecb_noinline
4929void
4426ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4930ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4427{ 4931{
4428 ev_run (w->other, EVRUN_NOWAIT); 4932 ev_run (w->other, EVRUN_NOWAIT);
4429} 4933}
4430 4934
4431static void 4935static void
… …
4479 ev_idle_stop (EV_A_ idle); 4983 ev_idle_stop (EV_A_ idle);
4480} 4984}
4481#endif 4985#endif
4482 4986
4483void 4987void
4484ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4988ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4485{ 4989{
4486 if (expect_false (ev_is_active (w))) 4990 if (ecb_expect_false (ev_is_active (w)))
4487 return; 4991 return;
4488 4992
4489 { 4993 {
4490 EV_P = w->other; 4994 EV_P = w->other;
4491 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4995 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4510 5014
4511 EV_FREQUENT_CHECK; 5015 EV_FREQUENT_CHECK;
4512} 5016}
4513 5017
4514void 5018void
4515ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5019ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4516{ 5020{
4517 clear_pending (EV_A_ (W)w); 5021 clear_pending (EV_A_ (W)w);
4518 if (expect_false (!ev_is_active (w))) 5022 if (ecb_expect_false (!ev_is_active (w)))
4519 return; 5023 return;
4520 5024
4521 EV_FREQUENT_CHECK; 5025 EV_FREQUENT_CHECK;
4522 5026
4523 ev_io_stop (EV_A_ &w->io); 5027 ev_io_stop (EV_A_ &w->io);
… …
4530} 5034}
4531#endif 5035#endif
4532 5036
4533#if EV_FORK_ENABLE 5037#if EV_FORK_ENABLE
4534void 5038void
4535ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5039ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4536{ 5040{
4537 if (expect_false (ev_is_active (w))) 5041 if (ecb_expect_false (ev_is_active (w)))
4538 return; 5042 return;
4539 5043
4540 EV_FREQUENT_CHECK; 5044 EV_FREQUENT_CHECK;
4541 5045
4542 ev_start (EV_A_ (W)w, ++forkcnt); 5046 ev_start (EV_A_ (W)w, ++forkcnt);
4543 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5047 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4544 forks [forkcnt - 1] = w; 5048 forks [forkcnt - 1] = w;
4545 5049
4546 EV_FREQUENT_CHECK; 5050 EV_FREQUENT_CHECK;
4547} 5051}
4548 5052
4549void 5053void
4550ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5054ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4551{ 5055{
4552 clear_pending (EV_A_ (W)w); 5056 clear_pending (EV_A_ (W)w);
4553 if (expect_false (!ev_is_active (w))) 5057 if (ecb_expect_false (!ev_is_active (w)))
4554 return; 5058 return;
4555 5059
4556 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4557 5061
4558 { 5062 {
… …
4568} 5072}
4569#endif 5073#endif
4570 5074
4571#if EV_CLEANUP_ENABLE 5075#if EV_CLEANUP_ENABLE
4572void 5076void
4573ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5077ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4574{ 5078{
4575 if (expect_false (ev_is_active (w))) 5079 if (ecb_expect_false (ev_is_active (w)))
4576 return; 5080 return;
4577 5081
4578 EV_FREQUENT_CHECK; 5082 EV_FREQUENT_CHECK;
4579 5083
4580 ev_start (EV_A_ (W)w, ++cleanupcnt); 5084 ev_start (EV_A_ (W)w, ++cleanupcnt);
4581 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5085 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4582 cleanups [cleanupcnt - 1] = w; 5086 cleanups [cleanupcnt - 1] = w;
4583 5087
4584 /* cleanup watchers should never keep a refcount on the loop */ 5088 /* cleanup watchers should never keep a refcount on the loop */
4585 ev_unref (EV_A); 5089 ev_unref (EV_A);
4586 EV_FREQUENT_CHECK; 5090 EV_FREQUENT_CHECK;
4587} 5091}
4588 5092
4589void 5093void
4590ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5094ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4591{ 5095{
4592 clear_pending (EV_A_ (W)w); 5096 clear_pending (EV_A_ (W)w);
4593 if (expect_false (!ev_is_active (w))) 5097 if (ecb_expect_false (!ev_is_active (w)))
4594 return; 5098 return;
4595 5099
4596 EV_FREQUENT_CHECK; 5100 EV_FREQUENT_CHECK;
4597 ev_ref (EV_A); 5101 ev_ref (EV_A);
4598 5102
… …
4609} 5113}
4610#endif 5114#endif
4611 5115
4612#if EV_ASYNC_ENABLE 5116#if EV_ASYNC_ENABLE
4613void 5117void
4614ev_async_start (EV_P_ ev_async *w) EV_THROW 5118ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4615{ 5119{
4616 if (expect_false (ev_is_active (w))) 5120 if (ecb_expect_false (ev_is_active (w)))
4617 return; 5121 return;
4618 5122
4619 w->sent = 0; 5123 w->sent = 0;
4620 5124
4621 evpipe_init (EV_A); 5125 evpipe_init (EV_A);
4622 5126
4623 EV_FREQUENT_CHECK; 5127 EV_FREQUENT_CHECK;
4624 5128
4625 ev_start (EV_A_ (W)w, ++asynccnt); 5129 ev_start (EV_A_ (W)w, ++asynccnt);
4626 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5130 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4627 asyncs [asynccnt - 1] = w; 5131 asyncs [asynccnt - 1] = w;
4628 5132
4629 EV_FREQUENT_CHECK; 5133 EV_FREQUENT_CHECK;
4630} 5134}
4631 5135
4632void 5136void
4633ev_async_stop (EV_P_ ev_async *w) EV_THROW 5137ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4634{ 5138{
4635 clear_pending (EV_A_ (W)w); 5139 clear_pending (EV_A_ (W)w);
4636 if (expect_false (!ev_is_active (w))) 5140 if (ecb_expect_false (!ev_is_active (w)))
4637 return; 5141 return;
4638 5142
4639 EV_FREQUENT_CHECK; 5143 EV_FREQUENT_CHECK;
4640 5144
4641 { 5145 {
… …
4649 5153
4650 EV_FREQUENT_CHECK; 5154 EV_FREQUENT_CHECK;
4651} 5155}
4652 5156
4653void 5157void
4654ev_async_send (EV_P_ ev_async *w) EV_THROW 5158ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4655{ 5159{
4656 w->sent = 1; 5160 w->sent = 1;
4657 evpipe_write (EV_A_ &async_pending); 5161 evpipe_write (EV_A_ &async_pending);
4658} 5162}
4659#endif 5163#endif
… …
4696 5200
4697 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5201 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4698} 5202}
4699 5203
4700void 5204void
4701ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5205ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4702{ 5206{
4703 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5207 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4704
4705 if (expect_false (!once))
4706 {
4707 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4708 return;
4709 }
4710 5208
4711 once->cb = cb; 5209 once->cb = cb;
4712 once->arg = arg; 5210 once->arg = arg;
4713 5211
4714 ev_init (&once->io, once_cb_io); 5212 ev_init (&once->io, once_cb_io);
… …
4727} 5225}
4728 5226
4729/*****************************************************************************/ 5227/*****************************************************************************/
4730 5228
4731#if EV_WALK_ENABLE 5229#if EV_WALK_ENABLE
4732void ecb_cold 5230ecb_cold
5231void
4733ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5232ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4734{ 5233{
4735 int i, j; 5234 int i, j;
4736 ev_watcher_list *wl, *wn; 5235 ev_watcher_list *wl, *wn;
4737 5236
4738 if (types & (EV_IO | EV_EMBED)) 5237 if (types & (EV_IO | EV_EMBED))

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