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Comparing libev/ev.c (file contents):
Revision 1.461 by root, Fri Dec 27 06:01:22 2013 UTC vs.
Revision 1.510 by root, Wed Aug 28 09:45:49 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
256# else 267# else
257# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
258# endif 269# endif
259#endif 270#endif
260 271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
278# endif
279#endif
280
261#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263# define EV_USE_MONOTONIC EV_FEATURE_OS 283# define EV_USE_MONOTONIC EV_FEATURE_OS
264# else 284# else
265# define EV_USE_MONOTONIC 0 285# define EV_USE_MONOTONIC 0
… …
304 324
305#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
306# define EV_USE_PORT 0 326# define EV_USE_PORT 0
307#endif 327#endif
308 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
337#ifndef EV_USE_IOURING
338# if __linux
339# define EV_USE_IOURING 0
340# else
341# define EV_USE_IOURING 0
342# endif
343#endif
344
309#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
311# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
312# else 348# else
313# define EV_USE_INOTIFY 0 349# define EV_USE_INOTIFY 0
… …
354 390
355#ifndef EV_HEAP_CACHE_AT 391#ifndef EV_HEAP_CACHE_AT
356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 392# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif 393#endif
358 394
359#ifdef ANDROID 395#ifdef __ANDROID__
360/* supposedly, android doesn't typedef fd_mask */ 396/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT 397# undef EV_USE_SELECT
362# define EV_USE_SELECT 0 398# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 399/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL 400# undef EV_USE_CLOCK_SYSCALL
… …
378# include <sys/syscall.h> 414# include <sys/syscall.h>
379# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
381# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
382# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
383# else 420# else
384# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
385# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
386# endif 423# endif
387#endif 424#endif
… …
405 442
406#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
407/* hp-ux has it in sys/time.h, which we unconditionally include above */ 444/* hp-ux has it in sys/time.h, which we unconditionally include above */
408# if !defined _WIN32 && !defined __hpux 445# if !defined _WIN32 && !defined __hpux
409# include <sys/select.h> 446# include <sys/select.h>
447# endif
448#endif
449
450#if EV_USE_LINUXAIO
451# include <sys/syscall.h>
452# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
453# define EV_NEED_SYSCALL 1
454# else
455# undef EV_USE_LINUXAIO
456# define EV_USE_LINUXAIO 0
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !SYS_io_uring_setup && __linux && !__alpha
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
410# endif 472# endif
411#endif 473#endif
412 474
413#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
414# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
456 uint32_t ssi_signo; 518 uint32_t ssi_signo;
457 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
458}; 520};
459#endif 521#endif
460 522
461/**/ 523/*****************************************************************************/
462 524
463#if EV_VERIFY >= 3 525#if EV_VERIFY >= 3
464# define EV_FREQUENT_CHECK ev_verify (EV_A) 526# define EV_FREQUENT_CHECK ev_verify (EV_A)
465#else 527#else
466# define EV_FREQUENT_CHECK do { } while (0) 528# define EV_FREQUENT_CHECK do { } while (0)
… …
471 * This value is good at least till the year 4000. 533 * This value is good at least till the year 4000.
472 */ 534 */
473#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 535#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
474/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 536/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
475 537
476#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 538#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) */ 539#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
478 540
541/* find a portable timestamp that is "always" in the future but fits into time_t.
542 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
543 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
544#define EV_TSTAMP_HUGE \
545 (sizeof (time_t) >= 8 ? 10000000000000. \
546 : 0 < (time_t)4294967295 ? 4294967295. \
547 : 2147483647.) \
548
549#ifndef EV_TS_CONST
550# define EV_TS_CONST(nv) nv
551# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
552# 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) 553# 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) 554# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
555# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
556# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
557#endif
481 558
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 559/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */ 560/* ECB.H BEGIN */
484/* 561/*
485 * libecb - http://software.schmorp.de/pkg/libecb 562 * libecb - http://software.schmorp.de/pkg/libecb
486 * 563 *
487 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 564 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 565 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 566 * All rights reserved.
490 * 567 *
491 * Redistribution and use in source and binary forms, with or without modifica- 568 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met: 569 * tion, are permitted provided that the following conditions are met:
… …
506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 583 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 584 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 585 * 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 586 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510 * OF THE POSSIBILITY OF SUCH DAMAGE. 587 * OF THE POSSIBILITY OF SUCH DAMAGE.
588 *
589 * Alternatively, the contents of this file may be used under the terms of
590 * the GNU General Public License ("GPL") version 2 or any later version,
591 * in which case the provisions of the GPL are applicable instead of
592 * the above. If you wish to allow the use of your version of this file
593 * only under the terms of the GPL and not to allow others to use your
594 * version of this file under the BSD license, indicate your decision
595 * by deleting the provisions above and replace them with the notice
596 * and other provisions required by the GPL. If you do not delete the
597 * provisions above, a recipient may use your version of this file under
598 * either the BSD or the GPL.
511 */ 599 */
512 600
513#ifndef ECB_H 601#ifndef ECB_H
514#define ECB_H 602#define ECB_H
515 603
516/* 16 bits major, 16 bits minor */ 604/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003 605#define ECB_VERSION 0x00010006
518 606
519#ifdef _WIN32 607#ifdef _WIN32
520 typedef signed char int8_t; 608 typedef signed char int8_t;
521 typedef unsigned char uint8_t; 609 typedef unsigned char uint8_t;
522 typedef signed short int16_t; 610 typedef signed short int16_t;
… …
539 typedef uint32_t uintptr_t; 627 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t; 628 typedef int32_t intptr_t;
541 #endif 629 #endif
542#else 630#else
543 #include <inttypes.h> 631 #include <inttypes.h>
544 #if UINTMAX_MAX > 0xffffffffU 632 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
545 #define ECB_PTRSIZE 8 633 #define ECB_PTRSIZE 8
546 #else 634 #else
547 #define ECB_PTRSIZE 4 635 #define ECB_PTRSIZE 4
548 #endif 636 #endif
549#endif 637#endif
550 638
639#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
640#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
641
551/* work around x32 idiocy by defining proper macros */ 642/* work around x32 idiocy by defining proper macros */
552#if __x86_64 || _M_AMD64 643#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
553 #if _ILP32 644 #if _ILP32
554 #define ECB_AMD64_X32 1 645 #define ECB_AMD64_X32 1
555 #else 646 #else
556 #define ECB_AMD64 1 647 #define ECB_AMD64 1
557 #endif 648 #endif
… …
562 * causing enormous grief in return for some better fake benchmark numbers. 653 * causing enormous grief in return for some better fake benchmark numbers.
563 * or so. 654 * or so.
564 * we try to detect these and simply assume they are not gcc - if they have 655 * 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. 656 * an issue with that they should have done it right in the first place.
566 */ 657 */
567#ifndef ECB_GCC_VERSION
568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 658#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
569 #define ECB_GCC_VERSION(major,minor) 0 659 #define ECB_GCC_VERSION(major,minor) 0
570 #else 660#else
571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 661 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572 #endif 662#endif
573#endif
574 663
575#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 664#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
576#define ECB_C99 (__STDC_VERSION__ >= 199901L) 665
577#define ECB_C11 (__STDC_VERSION__ >= 201112L) 666#if __clang__ && defined __has_builtin
667 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
668#else
669 #define ECB_CLANG_BUILTIN(x) 0
670#endif
671
672#if __clang__ && defined __has_extension
673 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
674#else
675 #define ECB_CLANG_EXTENSION(x) 0
676#endif
677
578#define ECB_CPP (__cplusplus+0) 678#define ECB_CPP (__cplusplus+0)
579#define ECB_CPP11 (__cplusplus >= 201103L) 679#define ECB_CPP11 (__cplusplus >= 201103L)
680#define ECB_CPP14 (__cplusplus >= 201402L)
681#define ECB_CPP17 (__cplusplus >= 201703L)
682
683#if ECB_CPP
684 #define ECB_C 0
685 #define ECB_STDC_VERSION 0
686#else
687 #define ECB_C 1
688 #define ECB_STDC_VERSION __STDC_VERSION__
689#endif
690
691#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
692#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
693#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
580 694
581#if ECB_CPP 695#if ECB_CPP
582 #define ECB_EXTERN_C extern "C" 696 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 697 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END } 698 #define ECB_EXTERN_C_END }
… …
599 713
600#if ECB_NO_SMP 714#if ECB_NO_SMP
601 #define ECB_MEMORY_FENCE do { } while (0) 715 #define ECB_MEMORY_FENCE do { } while (0)
602#endif 716#endif
603 717
718/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
719#if __xlC__ && ECB_CPP
720 #include <builtins.h>
721#endif
722
723#if 1400 <= _MSC_VER
724 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
725#endif
726
604#ifndef ECB_MEMORY_FENCE 727#ifndef ECB_MEMORY_FENCE
605 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 728 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
729 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
606 #if __i386 || __i386__ 730 #if __i386 || __i386__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 731 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 732 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 733 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 734 #elif ECB_GCC_AMD64
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 735 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 736 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 737 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 738 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 739 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
740 #elif defined __ARM_ARCH_2__ \
741 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
742 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
743 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
744 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
745 || defined __ARM_ARCH_5TEJ__
746 /* 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__ \ 747 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 748 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
749 || defined __ARM_ARCH_6T2__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 750 #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__ \ 751 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 752 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 753 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
622 #elif __sparc || __sparc__ 754 #elif __aarch64__
755 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
756 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 757 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 758 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 759 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626 #elif defined __s390__ || defined __s390x__ 760 #elif defined __s390__ || defined __s390x__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 761 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
648 782
649#ifndef ECB_MEMORY_FENCE 783#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7) 784 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */ 785 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 786 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
787 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
788 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
789 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
653 790
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 791 #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. 792 /* see comment below (stdatomic.h) about the C11 memory model. */
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 793 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */ 794 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
795 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
796 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
662 797
663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 798 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664 #define ECB_MEMORY_FENCE __sync_synchronize () 799 #define ECB_MEMORY_FENCE __sync_synchronize ()
800 #elif _MSC_VER >= 1500 /* VC++ 2008 */
801 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
802 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
803 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
804 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
805 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
665 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 806 #elif _MSC_VER >= 1400 /* VC++ 2005 */
666 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 807 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
667 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 808 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
668 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 809 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
669 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 810 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
670 #elif defined _WIN32 811 #elif defined _WIN32
671 #include <WinNT.h> 812 #include <WinNT.h>
672 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 813 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
673 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 814 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
674 #include <mbarrier.h> 815 #include <mbarrier.h>
675 #define ECB_MEMORY_FENCE __machine_rw_barrier () 816 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
676 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 817 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
677 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 818 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
819 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
678 #elif __xlC__ 820 #elif __xlC__
679 #define ECB_MEMORY_FENCE __sync () 821 #define ECB_MEMORY_FENCE __sync ()
680 #endif 822 #endif
681#endif 823#endif
682 824
683#ifndef ECB_MEMORY_FENCE 825#ifndef ECB_MEMORY_FENCE
684 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 826 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
685 /* we assume that these memory fences work on all variables/all memory accesses, */ 827 /* we assume that these memory fences work on all variables/all memory accesses, */
686 /* not just C11 atomics and atomic accesses */ 828 /* not just C11 atomics and atomic accesses */
687 #include <stdatomic.h> 829 #include <stdatomic.h>
688 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
689 /* any fence other than seq_cst, which isn't very efficient for us. */
690 /* Why that is, we don't know - either the C11 memory model is quite useless */
691 /* for most usages, or gcc and clang have a bug */
692 /* I *currently* lean towards the latter, and inefficiently implement */
693 /* all three of ecb's fences as a seq_cst fence */
694 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 830 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
831 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
832 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
695 #endif 833 #endif
696#endif 834#endif
697 835
698#ifndef ECB_MEMORY_FENCE 836#ifndef ECB_MEMORY_FENCE
699 #if !ECB_AVOID_PTHREADS 837 #if !ECB_AVOID_PTHREADS
… …
719 857
720#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 858#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
721 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 859 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
722#endif 860#endif
723 861
862#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
863 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
864#endif
865
724/*****************************************************************************/ 866/*****************************************************************************/
725 867
726#if __cplusplus 868#if ECB_CPP
727 #define ecb_inline static inline 869 #define ecb_inline static inline
728#elif ECB_GCC_VERSION(2,5) 870#elif ECB_GCC_VERSION(2,5)
729 #define ecb_inline static __inline__ 871 #define ecb_inline static __inline__
730#elif ECB_C99 872#elif ECB_C99
731 #define ecb_inline static inline 873 #define ecb_inline static inline
… …
745 887
746#define ECB_CONCAT_(a, b) a ## b 888#define ECB_CONCAT_(a, b) a ## b
747#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 889#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
748#define ECB_STRINGIFY_(a) # a 890#define ECB_STRINGIFY_(a) # a
749#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 891#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
892#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
750 893
751#define ecb_function_ ecb_inline 894#define ecb_function_ ecb_inline
752 895
753#if ECB_GCC_VERSION(3,1) 896#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
754 #define ecb_attribute(attrlist) __attribute__(attrlist) 897 #define ecb_attribute(attrlist) __attribute__ (attrlist)
898#else
899 #define ecb_attribute(attrlist)
900#endif
901
902#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
755 #define ecb_is_constant(expr) __builtin_constant_p (expr) 903 #define ecb_is_constant(expr) __builtin_constant_p (expr)
904#else
905 /* possible C11 impl for integral types
906 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
907 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
908
909 #define ecb_is_constant(expr) 0
910#endif
911
912#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
756 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 913 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
914#else
915 #define ecb_expect(expr,value) (expr)
916#endif
917
918#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
757 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 919 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
758#else 920#else
759 #define ecb_attribute(attrlist)
760 #define ecb_is_constant(expr) 0
761 #define ecb_expect(expr,value) (expr)
762 #define ecb_prefetch(addr,rw,locality) 921 #define ecb_prefetch(addr,rw,locality)
763#endif 922#endif
764 923
765/* no emulation for ecb_decltype */ 924/* no emulation for ecb_decltype */
766#if ECB_GCC_VERSION(4,5) 925#if ECB_CPP11
926 // older implementations might have problems with decltype(x)::type, work around it
927 template<class T> struct ecb_decltype_t { typedef T type; };
767 #define ecb_decltype(x) __decltype(x) 928 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
768#elif ECB_GCC_VERSION(3,0) 929#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
769 #define ecb_decltype(x) __typeof(x) 930 #define ecb_decltype(x) __typeof__ (x)
770#endif 931#endif
771 932
933#if _MSC_VER >= 1300
934 #define ecb_deprecated __declspec (deprecated)
935#else
936 #define ecb_deprecated ecb_attribute ((__deprecated__))
937#endif
938
939#if _MSC_VER >= 1500
940 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
941#elif ECB_GCC_VERSION(4,5)
942 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
943#else
944 #define ecb_deprecated_message(msg) ecb_deprecated
945#endif
946
947#if _MSC_VER >= 1400
948 #define ecb_noinline __declspec (noinline)
949#else
772#define ecb_noinline ecb_attribute ((__noinline__)) 950 #define ecb_noinline ecb_attribute ((__noinline__))
951#endif
952
773#define ecb_unused ecb_attribute ((__unused__)) 953#define ecb_unused ecb_attribute ((__unused__))
774#define ecb_const ecb_attribute ((__const__)) 954#define ecb_const ecb_attribute ((__const__))
775#define ecb_pure ecb_attribute ((__pure__)) 955#define ecb_pure ecb_attribute ((__pure__))
776 956
777#if ECB_C11 957#if ECB_C11 || __IBMC_NORETURN
958 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
778 #define ecb_noreturn _Noreturn 959 #define ecb_noreturn _Noreturn
960#elif ECB_CPP11
961 #define ecb_noreturn [[noreturn]]
962#elif _MSC_VER >= 1200
963 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
964 #define ecb_noreturn __declspec (noreturn)
779#else 965#else
780 #define ecb_noreturn ecb_attribute ((__noreturn__)) 966 #define ecb_noreturn ecb_attribute ((__noreturn__))
781#endif 967#endif
782 968
783#if ECB_GCC_VERSION(4,3) 969#if ECB_GCC_VERSION(4,3)
… …
798/* for compatibility to the rest of the world */ 984/* for compatibility to the rest of the world */
799#define ecb_likely(expr) ecb_expect_true (expr) 985#define ecb_likely(expr) ecb_expect_true (expr)
800#define ecb_unlikely(expr) ecb_expect_false (expr) 986#define ecb_unlikely(expr) ecb_expect_false (expr)
801 987
802/* count trailing zero bits and count # of one bits */ 988/* count trailing zero bits and count # of one bits */
803#if ECB_GCC_VERSION(3,4) 989#if ECB_GCC_VERSION(3,4) \
990 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
991 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
992 && ECB_CLANG_BUILTIN(__builtin_popcount))
804 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 993 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
805 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 994 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
806 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 995 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
807 #define ecb_ctz32(x) __builtin_ctz (x) 996 #define ecb_ctz32(x) __builtin_ctz (x)
808 #define ecb_ctz64(x) __builtin_ctzll (x) 997 #define ecb_ctz64(x) __builtin_ctzll (x)
809 #define ecb_popcount32(x) __builtin_popcount (x) 998 #define ecb_popcount32(x) __builtin_popcount (x)
810 /* no popcountll */ 999 /* no popcountll */
811#else 1000#else
812 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1001 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
813 ecb_function_ int 1002 ecb_function_ ecb_const int
814 ecb_ctz32 (uint32_t x) 1003 ecb_ctz32 (uint32_t x)
815 { 1004 {
1005#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1006 unsigned long r;
1007 _BitScanForward (&r, x);
1008 return (int)r;
1009#else
816 int r = 0; 1010 int r = 0;
817 1011
818 x &= ~x + 1; /* this isolates the lowest bit */ 1012 x &= ~x + 1; /* this isolates the lowest bit */
819 1013
820#if ECB_branchless_on_i386 1014#if ECB_branchless_on_i386
… …
830 if (x & 0xff00ff00) r += 8; 1024 if (x & 0xff00ff00) r += 8;
831 if (x & 0xffff0000) r += 16; 1025 if (x & 0xffff0000) r += 16;
832#endif 1026#endif
833 1027
834 return r; 1028 return r;
1029#endif
835 } 1030 }
836 1031
837 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1032 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
838 ecb_function_ int 1033 ecb_function_ ecb_const int
839 ecb_ctz64 (uint64_t x) 1034 ecb_ctz64 (uint64_t x)
840 { 1035 {
1036#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1037 unsigned long r;
1038 _BitScanForward64 (&r, x);
1039 return (int)r;
1040#else
841 int shift = x & 0xffffffffU ? 0 : 32; 1041 int shift = x & 0xffffffff ? 0 : 32;
842 return ecb_ctz32 (x >> shift) + shift; 1042 return ecb_ctz32 (x >> shift) + shift;
1043#endif
843 } 1044 }
844 1045
845 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1046 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
846 ecb_function_ int 1047 ecb_function_ ecb_const int
847 ecb_popcount32 (uint32_t x) 1048 ecb_popcount32 (uint32_t x)
848 { 1049 {
849 x -= (x >> 1) & 0x55555555; 1050 x -= (x >> 1) & 0x55555555;
850 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1051 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
851 x = ((x >> 4) + x) & 0x0f0f0f0f; 1052 x = ((x >> 4) + x) & 0x0f0f0f0f;
852 x *= 0x01010101; 1053 x *= 0x01010101;
853 1054
854 return x >> 24; 1055 return x >> 24;
855 } 1056 }
856 1057
857 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1058 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
858 ecb_function_ int ecb_ld32 (uint32_t x) 1059 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
859 { 1060 {
1061#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1062 unsigned long r;
1063 _BitScanReverse (&r, x);
1064 return (int)r;
1065#else
860 int r = 0; 1066 int r = 0;
861 1067
862 if (x >> 16) { x >>= 16; r += 16; } 1068 if (x >> 16) { x >>= 16; r += 16; }
863 if (x >> 8) { x >>= 8; r += 8; } 1069 if (x >> 8) { x >>= 8; r += 8; }
864 if (x >> 4) { x >>= 4; r += 4; } 1070 if (x >> 4) { x >>= 4; r += 4; }
865 if (x >> 2) { x >>= 2; r += 2; } 1071 if (x >> 2) { x >>= 2; r += 2; }
866 if (x >> 1) { r += 1; } 1072 if (x >> 1) { r += 1; }
867 1073
868 return r; 1074 return r;
1075#endif
869 } 1076 }
870 1077
871 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1078 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
872 ecb_function_ int ecb_ld64 (uint64_t x) 1079 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
873 { 1080 {
1081#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1082 unsigned long r;
1083 _BitScanReverse64 (&r, x);
1084 return (int)r;
1085#else
874 int r = 0; 1086 int r = 0;
875 1087
876 if (x >> 32) { x >>= 32; r += 32; } 1088 if (x >> 32) { x >>= 32; r += 32; }
877 1089
878 return r + ecb_ld32 (x); 1090 return r + ecb_ld32 (x);
1091#endif
879 } 1092 }
880#endif 1093#endif
881 1094
882ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1095ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
883ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1096ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
884ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1097ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
885ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1098ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
886 1099
887ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1100ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
888ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1101ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
889{ 1102{
890 return ( (x * 0x0802U & 0x22110U) 1103 return ( (x * 0x0802U & 0x22110U)
891 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1104 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
892} 1105}
893 1106
894ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1107ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
895ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1108ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
896{ 1109{
897 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1110 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
898 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1111 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
899 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1112 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
900 x = ( x >> 8 ) | ( x << 8); 1113 x = ( x >> 8 ) | ( x << 8);
901 1114
902 return x; 1115 return x;
903} 1116}
904 1117
905ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1118ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
906ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1119ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
907{ 1120{
908 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1121 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
909 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1122 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
910 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1123 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
911 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1124 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
914 return x; 1127 return x;
915} 1128}
916 1129
917/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1130/* popcount64 is only available on 64 bit cpus as gcc builtin */
918/* so for this version we are lazy */ 1131/* so for this version we are lazy */
919ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1132ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
920ecb_function_ int 1133ecb_function_ ecb_const int
921ecb_popcount64 (uint64_t x) 1134ecb_popcount64 (uint64_t x)
922{ 1135{
923 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1136 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
924} 1137}
925 1138
926ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1139ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
927ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1140ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
928ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1141ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
929ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1142ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
930ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1143ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
931ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1144ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
932ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1145ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
933ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1146ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
934 1147
935ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1148ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
936ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1149ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
937ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1150ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
938ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1151ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
939ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1152ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
940ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1153ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
941ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1154ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
942ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1155ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
943 1156
944#if ECB_GCC_VERSION(4,3) 1157#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1158 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1159 #define ecb_bswap16(x) __builtin_bswap16 (x)
1160 #else
945 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1161 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1162 #endif
946 #define ecb_bswap32(x) __builtin_bswap32 (x) 1163 #define ecb_bswap32(x) __builtin_bswap32 (x)
947 #define ecb_bswap64(x) __builtin_bswap64 (x) 1164 #define ecb_bswap64(x) __builtin_bswap64 (x)
1165#elif _MSC_VER
1166 #include <stdlib.h>
1167 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1168 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1169 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
948#else 1170#else
949 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1171 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
950 ecb_function_ uint16_t 1172 ecb_function_ ecb_const uint16_t
951 ecb_bswap16 (uint16_t x) 1173 ecb_bswap16 (uint16_t x)
952 { 1174 {
953 return ecb_rotl16 (x, 8); 1175 return ecb_rotl16 (x, 8);
954 } 1176 }
955 1177
956 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1178 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
957 ecb_function_ uint32_t 1179 ecb_function_ ecb_const uint32_t
958 ecb_bswap32 (uint32_t x) 1180 ecb_bswap32 (uint32_t x)
959 { 1181 {
960 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1182 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
961 } 1183 }
962 1184
963 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1185 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
964 ecb_function_ uint64_t 1186 ecb_function_ ecb_const uint64_t
965 ecb_bswap64 (uint64_t x) 1187 ecb_bswap64 (uint64_t x)
966 { 1188 {
967 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1189 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
968 } 1190 }
969#endif 1191#endif
970 1192
971#if ECB_GCC_VERSION(4,5) 1193#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
972 #define ecb_unreachable() __builtin_unreachable () 1194 #define ecb_unreachable() __builtin_unreachable ()
973#else 1195#else
974 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1196 /* this seems to work fine, but gcc always emits a warning for it :/ */
975 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1197 ecb_inline ecb_noreturn void ecb_unreachable (void);
976 ecb_inline void ecb_unreachable (void) { } 1198 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
977#endif 1199#endif
978 1200
979/* try to tell the compiler that some condition is definitely true */ 1201/* try to tell the compiler that some condition is definitely true */
980#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1202#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
981 1203
982ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1204ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
983ecb_inline unsigned char 1205ecb_inline ecb_const uint32_t
984ecb_byteorder_helper (void) 1206ecb_byteorder_helper (void)
985{ 1207{
986 /* the union code still generates code under pressure in gcc, */ 1208 /* the union code still generates code under pressure in gcc, */
987 /* but less than using pointers, and always seems to */ 1209 /* but less than using pointers, and always seems to */
988 /* successfully return a constant. */ 1210 /* successfully return a constant. */
989 /* the reason why we have this horrible preprocessor mess */ 1211 /* the reason why we have this horrible preprocessor mess */
990 /* is to avoid it in all cases, at least on common architectures */ 1212 /* is to avoid it in all cases, at least on common architectures */
991 /* or when using a recent enough gcc version (>= 4.6) */ 1213 /* or when using a recent enough gcc version (>= 4.6) */
992#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
993 return 0x44;
994#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1214#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1215 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1216 #define ECB_LITTLE_ENDIAN 1
995 return 0x44; 1217 return 0x44332211;
996#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1218#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1219 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1220 #define ECB_BIG_ENDIAN 1
997 return 0x11; 1221 return 0x11223344;
998#else 1222#else
999 union 1223 union
1000 { 1224 {
1225 uint8_t c[4];
1001 uint32_t i; 1226 uint32_t u;
1002 uint8_t c;
1003 } u = { 0x11223344 }; 1227 } u = { 0x11, 0x22, 0x33, 0x44 };
1004 return u.c; 1228 return u.u;
1005#endif 1229#endif
1006} 1230}
1007 1231
1008ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1232ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1009ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1233ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1010ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1234ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1011ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1235ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1012 1236
1013#if ECB_GCC_VERSION(3,0) || ECB_C99 1237#if ECB_GCC_VERSION(3,0) || ECB_C99
1014 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1238 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1015#else 1239#else
1016 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1240 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1017#endif 1241#endif
1018 1242
1019#if __cplusplus 1243#if ECB_CPP
1020 template<typename T> 1244 template<typename T>
1021 static inline T ecb_div_rd (T val, T div) 1245 static inline T ecb_div_rd (T val, T div)
1022 { 1246 {
1023 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1247 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1024 } 1248 }
… …
1041 } 1265 }
1042#else 1266#else
1043 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1267 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1044#endif 1268#endif
1045 1269
1270ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1271ecb_function_ ecb_const uint32_t
1272ecb_binary16_to_binary32 (uint32_t x)
1273{
1274 unsigned int s = (x & 0x8000) << (31 - 15);
1275 int e = (x >> 10) & 0x001f;
1276 unsigned int m = x & 0x03ff;
1277
1278 if (ecb_expect_false (e == 31))
1279 /* infinity or NaN */
1280 e = 255 - (127 - 15);
1281 else if (ecb_expect_false (!e))
1282 {
1283 if (ecb_expect_true (!m))
1284 /* zero, handled by code below by forcing e to 0 */
1285 e = 0 - (127 - 15);
1286 else
1287 {
1288 /* subnormal, renormalise */
1289 unsigned int s = 10 - ecb_ld32 (m);
1290
1291 m = (m << s) & 0x3ff; /* mask implicit bit */
1292 e -= s - 1;
1293 }
1294 }
1295
1296 /* e and m now are normalised, or zero, (or inf or nan) */
1297 e += 127 - 15;
1298
1299 return s | (e << 23) | (m << (23 - 10));
1300}
1301
1302ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1303ecb_function_ ecb_const uint16_t
1304ecb_binary32_to_binary16 (uint32_t x)
1305{
1306 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1307 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1308 unsigned int m = x & 0x007fffff;
1309
1310 x &= 0x7fffffff;
1311
1312 /* if it's within range of binary16 normals, use fast path */
1313 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1314 {
1315 /* mantissa round-to-even */
1316 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1317
1318 /* handle overflow */
1319 if (ecb_expect_false (m >= 0x00800000))
1320 {
1321 m >>= 1;
1322 e += 1;
1323 }
1324
1325 return s | (e << 10) | (m >> (23 - 10));
1326 }
1327
1328 /* handle large numbers and infinity */
1329 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1330 return s | 0x7c00;
1331
1332 /* handle zero, subnormals and small numbers */
1333 if (ecb_expect_true (x < 0x38800000))
1334 {
1335 /* zero */
1336 if (ecb_expect_true (!x))
1337 return s;
1338
1339 /* handle subnormals */
1340
1341 /* too small, will be zero */
1342 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1343 return s;
1344
1345 m |= 0x00800000; /* make implicit bit explicit */
1346
1347 /* very tricky - we need to round to the nearest e (+10) bit value */
1348 {
1349 unsigned int bits = 14 - e;
1350 unsigned int half = (1 << (bits - 1)) - 1;
1351 unsigned int even = (m >> bits) & 1;
1352
1353 /* if this overflows, we will end up with a normalised number */
1354 m = (m + half + even) >> bits;
1355 }
1356
1357 return s | m;
1358 }
1359
1360 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1361 m >>= 13;
1362
1363 return s | 0x7c00 | m | !m;
1364}
1365
1046/*******************************************************************************/ 1366/*******************************************************************************/
1047/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1367/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1048 1368
1049/* basically, everything uses "ieee pure-endian" floating point numbers */ 1369/* basically, everything uses "ieee pure-endian" floating point numbers */
1050/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1370/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1051#if 0 \ 1371#if 0 \
1052 || __i386 || __i386__ \ 1372 || __i386 || __i386__ \
1053 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1373 || ECB_GCC_AMD64 \
1054 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1374 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1055 || defined __arm__ && defined __ARM_EABI__ \
1056 || defined __s390__ || defined __s390x__ \ 1375 || defined __s390__ || defined __s390x__ \
1057 || defined __mips__ \ 1376 || defined __mips__ \
1058 || defined __alpha__ \ 1377 || defined __alpha__ \
1059 || defined __hppa__ \ 1378 || defined __hppa__ \
1060 || defined __ia64__ \ 1379 || defined __ia64__ \
1061 || defined __m68k__ \ 1380 || defined __m68k__ \
1062 || defined __m88k__ \ 1381 || defined __m88k__ \
1063 || defined __sh__ \ 1382 || defined __sh__ \
1064 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1383 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1384 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1385 || defined __aarch64__
1065 #define ECB_STDFP 1 1386 #define ECB_STDFP 1
1066 #include <string.h> /* for memcpy */ 1387 #include <string.h> /* for memcpy */
1067#else 1388#else
1068 #define ECB_STDFP 0 1389 #define ECB_STDFP 0
1069#endif 1390#endif
1070 1391
1071#ifndef ECB_NO_LIBM 1392#ifndef ECB_NO_LIBM
1072 1393
1073 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ 1394 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1074 1395
1396 /* only the oldest of old doesn't have this one. solaris. */
1397 #ifdef INFINITY
1398 #define ECB_INFINITY INFINITY
1399 #else
1400 #define ECB_INFINITY HUGE_VAL
1401 #endif
1402
1075 #ifdef NEN 1403 #ifdef NAN
1076 #define ECB_NAN NAN 1404 #define ECB_NAN NAN
1077 #else 1405 #else
1078 #define ECB_NAN INFINITY 1406 #define ECB_NAN ECB_INFINITY
1079 #endif 1407 #endif
1080 1408
1081 /* converts an ieee half/binary16 to a float */ 1409 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1082 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1410 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1083 ecb_function_ float 1411 #define ecb_frexpf(x,e) frexpf ((x), (e))
1084 ecb_binary16_to_float (uint16_t x) 1412 #else
1085 { 1413 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1086 int e = (x >> 10) & 0x1f; 1414 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1087 int m = x & 0x3ff; 1415 #endif
1088 float r;
1089
1090 if (!e ) r = ldexpf (m , -24);
1091 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1092 else if (m ) r = ECB_NAN;
1093 else r = INFINITY;
1094
1095 return x & 0x8000 ? -r : r;
1096 }
1097 1416
1098 /* convert a float to ieee single/binary32 */ 1417 /* convert a float to ieee single/binary32 */
1099 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1418 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1100 ecb_function_ uint32_t 1419 ecb_function_ ecb_const uint32_t
1101 ecb_float_to_binary32 (float x) 1420 ecb_float_to_binary32 (float x)
1102 { 1421 {
1103 uint32_t r; 1422 uint32_t r;
1104 1423
1105 #if ECB_STDFP 1424 #if ECB_STDFP
… …
1112 if (x == 0e0f ) return 0x00000000U; 1431 if (x == 0e0f ) return 0x00000000U;
1113 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1432 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1114 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1433 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1115 if (x != x ) return 0x7fbfffffU; 1434 if (x != x ) return 0x7fbfffffU;
1116 1435
1117 m = frexpf (x, &e) * 0x1000000U; 1436 m = ecb_frexpf (x, &e) * 0x1000000U;
1118 1437
1119 r = m & 0x80000000U; 1438 r = m & 0x80000000U;
1120 1439
1121 if (r) 1440 if (r)
1122 m = -m; 1441 m = -m;
… …
1134 1453
1135 return r; 1454 return r;
1136 } 1455 }
1137 1456
1138 /* converts an ieee single/binary32 to a float */ 1457 /* converts an ieee single/binary32 to a float */
1139 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1458 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1140 ecb_function_ float 1459 ecb_function_ ecb_const float
1141 ecb_binary32_to_float (uint32_t x) 1460 ecb_binary32_to_float (uint32_t x)
1142 { 1461 {
1143 float r; 1462 float r;
1144 1463
1145 #if ECB_STDFP 1464 #if ECB_STDFP
… …
1155 x |= 0x800000U; 1474 x |= 0x800000U;
1156 else 1475 else
1157 e = 1; 1476 e = 1;
1158 1477
1159 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1478 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1160 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1479 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1161 1480
1162 r = neg ? -r : r; 1481 r = neg ? -r : r;
1163 #endif 1482 #endif
1164 1483
1165 return r; 1484 return r;
1166 } 1485 }
1167 1486
1168 /* convert a double to ieee double/binary64 */ 1487 /* convert a double to ieee double/binary64 */
1169 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1488 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1170 ecb_function_ uint64_t 1489 ecb_function_ ecb_const uint64_t
1171 ecb_double_to_binary64 (double x) 1490 ecb_double_to_binary64 (double x)
1172 { 1491 {
1173 uint64_t r; 1492 uint64_t r;
1174 1493
1175 #if ECB_STDFP 1494 #if ECB_STDFP
… …
1204 1523
1205 return r; 1524 return r;
1206 } 1525 }
1207 1526
1208 /* converts an ieee double/binary64 to a double */ 1527 /* converts an ieee double/binary64 to a double */
1209 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1528 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1210 ecb_function_ double 1529 ecb_function_ ecb_const double
1211 ecb_binary64_to_double (uint64_t x) 1530 ecb_binary64_to_double (uint64_t x)
1212 { 1531 {
1213 double r; 1532 double r;
1214 1533
1215 #if ECB_STDFP 1534 #if ECB_STDFP
… …
1233 #endif 1552 #endif
1234 1553
1235 return r; 1554 return r;
1236 } 1555 }
1237 1556
1557 /* convert a float to ieee half/binary16 */
1558 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1559 ecb_function_ ecb_const uint16_t
1560 ecb_float_to_binary16 (float x)
1561 {
1562 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1563 }
1564
1565 /* convert an ieee half/binary16 to float */
1566 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1567 ecb_function_ ecb_const float
1568 ecb_binary16_to_float (uint16_t x)
1569 {
1570 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1571 }
1572
1238#endif 1573#endif
1239 1574
1240#endif 1575#endif
1241 1576
1242/* ECB.H END */ 1577/* ECB.H END */
1243 1578
1244#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1579#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1245/* if your architecture doesn't need memory fences, e.g. because it is 1580/* if your architecture doesn't need memory fences, e.g. because it is
1246 * single-cpu/core, or if you use libev in a project that doesn't use libev 1581 * single-cpu/core, or if you use libev in a project that doesn't use libev
1247 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1582 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1248 * libev, in which cases the memory fences become nops. 1583 * libev, in which cases the memory fences become nops.
1249 * alternatively, you can remove this #error and link against libpthread, 1584 * alternatively, you can remove this #error and link against libpthread,
1250 * which will then provide the memory fences. 1585 * which will then provide the memory fences.
1251 */ 1586 */
1252# error "memory fences not defined for your architecture, please report" 1587# error "memory fences not defined for your architecture, please report"
… …
1256# define ECB_MEMORY_FENCE do { } while (0) 1591# define ECB_MEMORY_FENCE do { } while (0)
1257# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1592# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1258# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1593# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1259#endif 1594#endif
1260 1595
1261#define expect_false(cond) ecb_expect_false (cond)
1262#define expect_true(cond) ecb_expect_true (cond)
1263#define noinline ecb_noinline
1264
1265#define inline_size ecb_inline 1596#define inline_size ecb_inline
1266 1597
1267#if EV_FEATURE_CODE 1598#if EV_FEATURE_CODE
1268# define inline_speed ecb_inline 1599# define inline_speed ecb_inline
1269#else 1600#else
1270# define inline_speed static noinline 1601# define inline_speed ecb_noinline static
1271#endif 1602#endif
1603
1604/*****************************************************************************/
1605/* raw syscall wrappers */
1606
1607#if EV_NEED_SYSCALL
1608
1609#include <sys/syscall.h>
1610
1611/*
1612 * define some syscall wrappers for common architectures
1613 * this is mostly for nice looks during debugging, not performance.
1614 * our syscalls return < 0, not == -1, on error. which is good
1615 * enough for linux aio.
1616 * TODO: arm is also common nowadays, maybe even mips and x86
1617 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1618 */
1619#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1620 /* the costly errno access probably kills this for size optimisation */
1621
1622 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1623 ({ \
1624 long res; \
1625 register unsigned long r6 __asm__ ("r9" ); \
1626 register unsigned long r5 __asm__ ("r8" ); \
1627 register unsigned long r4 __asm__ ("r10"); \
1628 register unsigned long r3 __asm__ ("rdx"); \
1629 register unsigned long r2 __asm__ ("rsi"); \
1630 register unsigned long r1 __asm__ ("rdi"); \
1631 if (narg >= 6) r6 = (unsigned long)(arg6); \
1632 if (narg >= 5) r5 = (unsigned long)(arg5); \
1633 if (narg >= 4) r4 = (unsigned long)(arg4); \
1634 if (narg >= 3) r3 = (unsigned long)(arg3); \
1635 if (narg >= 2) r2 = (unsigned long)(arg2); \
1636 if (narg >= 1) r1 = (unsigned long)(arg1); \
1637 __asm__ __volatile__ ( \
1638 "syscall\n\t" \
1639 : "=a" (res) \
1640 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1641 : "cc", "r11", "cx", "memory"); \
1642 errno = -res; \
1643 res; \
1644 })
1645
1646#endif
1647
1648#ifdef ev_syscall
1649 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1650 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1651 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1652 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1653 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1654 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1655 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1656#else
1657 #define ev_syscall0(nr) syscall (nr)
1658 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1659 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1660 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1661 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1662 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1663 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1664#endif
1665
1666#endif
1667
1668/*****************************************************************************/
1272 1669
1273#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1670#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1274 1671
1275#if EV_MINPRI == EV_MAXPRI 1672#if EV_MINPRI == EV_MAXPRI
1276# define ABSPRI(w) (((W)w), 0) 1673# define ABSPRI(w) (((W)w), 0)
1277#else 1674#else
1278# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1675# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1279#endif 1676#endif
1280 1677
1281#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1678#define EMPTY /* required for microsofts broken pseudo-c compiler */
1282#define EMPTY2(a,b) /* used to suppress some warnings */
1283 1679
1284typedef ev_watcher *W; 1680typedef ev_watcher *W;
1285typedef ev_watcher_list *WL; 1681typedef ev_watcher_list *WL;
1286typedef ev_watcher_time *WT; 1682typedef ev_watcher_time *WT;
1287 1683
… …
1312# include "ev_win32.c" 1708# include "ev_win32.c"
1313#endif 1709#endif
1314 1710
1315/*****************************************************************************/ 1711/*****************************************************************************/
1316 1712
1713#if EV_USE_LINUXAIO
1714# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1715#endif
1716
1317/* define a suitable floor function (only used by periodics atm) */ 1717/* define a suitable floor function (only used by periodics atm) */
1318 1718
1319#if EV_USE_FLOOR 1719#if EV_USE_FLOOR
1320# include <math.h> 1720# include <math.h>
1321# define ev_floor(v) floor (v) 1721# define ev_floor(v) floor (v)
1322#else 1722#else
1323 1723
1324#include <float.h> 1724#include <float.h>
1325 1725
1326/* a floor() replacement function, should be independent of ev_tstamp type */ 1726/* a floor() replacement function, should be independent of ev_tstamp type */
1727ecb_noinline
1327static ev_tstamp noinline 1728static ev_tstamp
1328ev_floor (ev_tstamp v) 1729ev_floor (ev_tstamp v)
1329{ 1730{
1330 /* the choice of shift factor is not terribly important */ 1731 /* the choice of shift factor is not terribly important */
1331#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1732#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1332 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1733 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1333#else 1734#else
1334 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1735 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1335#endif 1736#endif
1336 1737
1738 /* special treatment for negative arguments */
1739 if (ecb_expect_false (v < 0.))
1740 {
1741 ev_tstamp f = -ev_floor (-v);
1742
1743 return f - (f == v ? 0 : 1);
1744 }
1745
1337 /* argument too large for an unsigned long? */ 1746 /* argument too large for an unsigned long? then reduce it */
1338 if (expect_false (v >= shift)) 1747 if (ecb_expect_false (v >= shift))
1339 { 1748 {
1340 ev_tstamp f; 1749 ev_tstamp f;
1341 1750
1342 if (v == v - 1.) 1751 if (v == v - 1.)
1343 return v; /* very large number */ 1752 return v; /* very large numbers are assumed to be integer */
1344 1753
1345 f = shift * ev_floor (v * (1. / shift)); 1754 f = shift * ev_floor (v * (1. / shift));
1346 return f + ev_floor (v - f); 1755 return f + ev_floor (v - f);
1347 } 1756 }
1348 1757
1349 /* special treatment for negative args? */
1350 if (expect_false (v < 0.))
1351 {
1352 ev_tstamp f = -ev_floor (-v);
1353
1354 return f - (f == v ? 0 : 1);
1355 }
1356
1357 /* fits into an unsigned long */ 1758 /* fits into an unsigned long */
1358 return (unsigned long)v; 1759 return (unsigned long)v;
1359} 1760}
1360 1761
1361#endif 1762#endif
… …
1364 1765
1365#ifdef __linux 1766#ifdef __linux
1366# include <sys/utsname.h> 1767# include <sys/utsname.h>
1367#endif 1768#endif
1368 1769
1369static unsigned int noinline ecb_cold 1770ecb_noinline ecb_cold
1771static unsigned int
1370ev_linux_version (void) 1772ev_linux_version (void)
1371{ 1773{
1372#ifdef __linux 1774#ifdef __linux
1373 unsigned int v = 0; 1775 unsigned int v = 0;
1374 struct utsname buf; 1776 struct utsname buf;
… …
1403} 1805}
1404 1806
1405/*****************************************************************************/ 1807/*****************************************************************************/
1406 1808
1407#if EV_AVOID_STDIO 1809#if EV_AVOID_STDIO
1408static void noinline ecb_cold 1810ecb_noinline ecb_cold
1811static void
1409ev_printerr (const char *msg) 1812ev_printerr (const char *msg)
1410{ 1813{
1411 write (STDERR_FILENO, msg, strlen (msg)); 1814 write (STDERR_FILENO, msg, strlen (msg));
1412} 1815}
1413#endif 1816#endif
1414 1817
1415static void (*syserr_cb)(const char *msg) EV_THROW; 1818static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1416 1819
1417void ecb_cold 1820ecb_cold
1821void
1418ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1822ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1419{ 1823{
1420 syserr_cb = cb; 1824 syserr_cb = cb;
1421} 1825}
1422 1826
1423static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1424ev_syserr (const char *msg) 1829ev_syserr (const char *msg)
1425{ 1830{
1426 if (!msg) 1831 if (!msg)
1427 msg = "(libev) system error"; 1832 msg = "(libev) system error";
1428 1833
… …
1441 abort (); 1846 abort ();
1442 } 1847 }
1443} 1848}
1444 1849
1445static void * 1850static void *
1446ev_realloc_emul (void *ptr, long size) EV_THROW 1851ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1447{ 1852{
1448 /* some systems, notably openbsd and darwin, fail to properly 1853 /* some systems, notably openbsd and darwin, fail to properly
1449 * implement realloc (x, 0) (as required by both ansi c-89 and 1854 * implement realloc (x, 0) (as required by both ansi c-89 and
1450 * the single unix specification, so work around them here. 1855 * the single unix specification, so work around them here.
1451 * recently, also (at least) fedora and debian started breaking it, 1856 * recently, also (at least) fedora and debian started breaking it,
… …
1457 1862
1458 free (ptr); 1863 free (ptr);
1459 return 0; 1864 return 0;
1460} 1865}
1461 1866
1462static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1867static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1463 1868
1464void ecb_cold 1869ecb_cold
1870void
1465ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1871ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1466{ 1872{
1467 alloc = cb; 1873 alloc = cb;
1468} 1874}
1469 1875
1470inline_speed void * 1876inline_speed void *
… …
1497typedef struct 1903typedef struct
1498{ 1904{
1499 WL head; 1905 WL head;
1500 unsigned char events; /* the events watched for */ 1906 unsigned char events; /* the events watched for */
1501 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1907 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1502 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1908 unsigned char emask; /* some backends store the actual kernel mask in here */
1503 unsigned char unused; 1909 unsigned char eflags; /* flags field for use by backends */
1504#if EV_USE_EPOLL 1910#if EV_USE_EPOLL
1505 unsigned int egen; /* generation counter to counter epoll bugs */ 1911 unsigned int egen; /* generation counter to counter epoll bugs */
1506#endif 1912#endif
1507#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1913#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1508 SOCKET handle; 1914 SOCKET handle;
… …
1562 static struct ev_loop default_loop_struct; 1968 static struct ev_loop default_loop_struct;
1563 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 1969 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1564 1970
1565#else 1971#else
1566 1972
1567 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 1973 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1568 #define VAR(name,decl) static decl; 1974 #define VAR(name,decl) static decl;
1569 #include "ev_vars.h" 1975 #include "ev_vars.h"
1570 #undef VAR 1976 #undef VAR
1571 1977
1572 static int ev_default_loop_ptr; 1978 static int ev_default_loop_ptr;
1573 1979
1574#endif 1980#endif
1575 1981
1576#if EV_FEATURE_API 1982#if EV_FEATURE_API
1577# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1983# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1578# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1984# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1579# define EV_INVOKE_PENDING invoke_cb (EV_A) 1985# define EV_INVOKE_PENDING invoke_cb (EV_A)
1580#else 1986#else
1581# define EV_RELEASE_CB (void)0 1987# define EV_RELEASE_CB (void)0
1582# define EV_ACQUIRE_CB (void)0 1988# define EV_ACQUIRE_CB (void)0
1583# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1989# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1587 1993
1588/*****************************************************************************/ 1994/*****************************************************************************/
1589 1995
1590#ifndef EV_HAVE_EV_TIME 1996#ifndef EV_HAVE_EV_TIME
1591ev_tstamp 1997ev_tstamp
1592ev_time (void) EV_THROW 1998ev_time (void) EV_NOEXCEPT
1593{ 1999{
1594#if EV_USE_REALTIME 2000#if EV_USE_REALTIME
1595 if (expect_true (have_realtime)) 2001 if (ecb_expect_true (have_realtime))
1596 { 2002 {
1597 struct timespec ts; 2003 struct timespec ts;
1598 clock_gettime (CLOCK_REALTIME, &ts); 2004 clock_gettime (CLOCK_REALTIME, &ts);
1599 return ts.tv_sec + ts.tv_nsec * 1e-9; 2005 return EV_TS_GET (ts);
1600 } 2006 }
1601#endif 2007#endif
1602 2008
2009 {
1603 struct timeval tv; 2010 struct timeval tv;
1604 gettimeofday (&tv, 0); 2011 gettimeofday (&tv, 0);
1605 return tv.tv_sec + tv.tv_usec * 1e-6; 2012 return EV_TV_GET (tv);
2013 }
1606} 2014}
1607#endif 2015#endif
1608 2016
1609inline_size ev_tstamp 2017inline_size ev_tstamp
1610get_clock (void) 2018get_clock (void)
1611{ 2019{
1612#if EV_USE_MONOTONIC 2020#if EV_USE_MONOTONIC
1613 if (expect_true (have_monotonic)) 2021 if (ecb_expect_true (have_monotonic))
1614 { 2022 {
1615 struct timespec ts; 2023 struct timespec ts;
1616 clock_gettime (CLOCK_MONOTONIC, &ts); 2024 clock_gettime (CLOCK_MONOTONIC, &ts);
1617 return ts.tv_sec + ts.tv_nsec * 1e-9; 2025 return EV_TS_GET (ts);
1618 } 2026 }
1619#endif 2027#endif
1620 2028
1621 return ev_time (); 2029 return ev_time ();
1622} 2030}
1623 2031
1624#if EV_MULTIPLICITY 2032#if EV_MULTIPLICITY
1625ev_tstamp 2033ev_tstamp
1626ev_now (EV_P) EV_THROW 2034ev_now (EV_P) EV_NOEXCEPT
1627{ 2035{
1628 return ev_rt_now; 2036 return ev_rt_now;
1629} 2037}
1630#endif 2038#endif
1631 2039
1632void 2040void
1633ev_sleep (ev_tstamp delay) EV_THROW 2041ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1634{ 2042{
1635 if (delay > 0.) 2043 if (delay > EV_TS_CONST (0.))
1636 { 2044 {
1637#if EV_USE_NANOSLEEP 2045#if EV_USE_NANOSLEEP
1638 struct timespec ts; 2046 struct timespec ts;
1639 2047
1640 EV_TS_SET (ts, delay); 2048 EV_TS_SET (ts, delay);
1641 nanosleep (&ts, 0); 2049 nanosleep (&ts, 0);
1642#elif defined _WIN32 2050#elif defined _WIN32
2051 /* maybe this should round up, as ms is very low resolution */
2052 /* compared to select (µs) or nanosleep (ns) */
1643 Sleep ((unsigned long)(delay * 1e3)); 2053 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1644#else 2054#else
1645 struct timeval tv; 2055 struct timeval tv;
1646 2056
1647 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2057 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1648 /* something not guaranteed by newer posix versions, but guaranteed */ 2058 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1678 } 2088 }
1679 2089
1680 return ncur; 2090 return ncur;
1681} 2091}
1682 2092
1683static void * noinline ecb_cold 2093ecb_noinline ecb_cold
2094static void *
1684array_realloc (int elem, void *base, int *cur, int cnt) 2095array_realloc (int elem, void *base, int *cur, int cnt)
1685{ 2096{
1686 *cur = array_nextsize (elem, *cur, cnt); 2097 *cur = array_nextsize (elem, *cur, cnt);
1687 return ev_realloc (base, elem * *cur); 2098 return ev_realloc (base, elem * *cur);
1688} 2099}
1689 2100
2101#define array_needsize_noinit(base,offset,count)
2102
1690#define array_init_zero(base,count) \ 2103#define array_needsize_zerofill(base,offset,count) \
1691 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2104 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1692 2105
1693#define array_needsize(type,base,cur,cnt,init) \ 2106#define array_needsize(type,base,cur,cnt,init) \
1694 if (expect_false ((cnt) > (cur))) \ 2107 if (ecb_expect_false ((cnt) > (cur))) \
1695 { \ 2108 { \
1696 int ecb_unused ocur_ = (cur); \ 2109 ecb_unused int ocur_ = (cur); \
1697 (base) = (type *)array_realloc \ 2110 (base) = (type *)array_realloc \
1698 (sizeof (type), (base), &(cur), (cnt)); \ 2111 (sizeof (type), (base), &(cur), (cnt)); \
1699 init ((base) + (ocur_), (cur) - ocur_); \ 2112 init ((base), ocur_, ((cur) - ocur_)); \
1700 } 2113 }
1701 2114
1702#if 0 2115#if 0
1703#define array_slim(type,stem) \ 2116#define array_slim(type,stem) \
1704 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2117 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1713 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2126 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1714 2127
1715/*****************************************************************************/ 2128/*****************************************************************************/
1716 2129
1717/* dummy callback for pending events */ 2130/* dummy callback for pending events */
1718static void noinline 2131ecb_noinline
2132static void
1719pendingcb (EV_P_ ev_prepare *w, int revents) 2133pendingcb (EV_P_ ev_prepare *w, int revents)
1720{ 2134{
1721} 2135}
1722 2136
1723void noinline 2137ecb_noinline
2138void
1724ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2139ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1725{ 2140{
1726 W w_ = (W)w; 2141 W w_ = (W)w;
1727 int pri = ABSPRI (w_); 2142 int pri = ABSPRI (w_);
1728 2143
1729 if (expect_false (w_->pending)) 2144 if (ecb_expect_false (w_->pending))
1730 pendings [pri][w_->pending - 1].events |= revents; 2145 pendings [pri][w_->pending - 1].events |= revents;
1731 else 2146 else
1732 { 2147 {
1733 w_->pending = ++pendingcnt [pri]; 2148 w_->pending = ++pendingcnt [pri];
1734 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2149 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1735 pendings [pri][w_->pending - 1].w = w_; 2150 pendings [pri][w_->pending - 1].w = w_;
1736 pendings [pri][w_->pending - 1].events = revents; 2151 pendings [pri][w_->pending - 1].events = revents;
1737 } 2152 }
1738 2153
1739 pendingpri = NUMPRI - 1; 2154 pendingpri = NUMPRI - 1;
1740} 2155}
1741 2156
1742inline_speed void 2157inline_speed void
1743feed_reverse (EV_P_ W w) 2158feed_reverse (EV_P_ W w)
1744{ 2159{
1745 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2160 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1746 rfeeds [rfeedcnt++] = w; 2161 rfeeds [rfeedcnt++] = w;
1747} 2162}
1748 2163
1749inline_size void 2164inline_size void
1750feed_reverse_done (EV_P_ int revents) 2165feed_reverse_done (EV_P_ int revents)
… …
1785inline_speed void 2200inline_speed void
1786fd_event (EV_P_ int fd, int revents) 2201fd_event (EV_P_ int fd, int revents)
1787{ 2202{
1788 ANFD *anfd = anfds + fd; 2203 ANFD *anfd = anfds + fd;
1789 2204
1790 if (expect_true (!anfd->reify)) 2205 if (ecb_expect_true (!anfd->reify))
1791 fd_event_nocheck (EV_A_ fd, revents); 2206 fd_event_nocheck (EV_A_ fd, revents);
1792} 2207}
1793 2208
1794void 2209void
1795ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2210ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1796{ 2211{
1797 if (fd >= 0 && fd < anfdmax) 2212 if (fd >= 0 && fd < anfdmax)
1798 fd_event_nocheck (EV_A_ fd, revents); 2213 fd_event_nocheck (EV_A_ fd, revents);
1799} 2214}
1800 2215
… …
1837 ev_io *w; 2252 ev_io *w;
1838 2253
1839 unsigned char o_events = anfd->events; 2254 unsigned char o_events = anfd->events;
1840 unsigned char o_reify = anfd->reify; 2255 unsigned char o_reify = anfd->reify;
1841 2256
1842 anfd->reify = 0; 2257 anfd->reify = 0;
1843 2258
1844 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2259 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1845 { 2260 {
1846 anfd->events = 0; 2261 anfd->events = 0;
1847 2262
1848 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2263 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1849 anfd->events |= (unsigned char)w->events; 2264 anfd->events |= (unsigned char)w->events;
… …
1858 2273
1859 fdchangecnt = 0; 2274 fdchangecnt = 0;
1860} 2275}
1861 2276
1862/* something about the given fd changed */ 2277/* something about the given fd changed */
1863inline_size void 2278inline_size
2279void
1864fd_change (EV_P_ int fd, int flags) 2280fd_change (EV_P_ int fd, int flags)
1865{ 2281{
1866 unsigned char reify = anfds [fd].reify; 2282 unsigned char reify = anfds [fd].reify;
1867 anfds [fd].reify |= flags; 2283 anfds [fd].reify |= flags;
1868 2284
1869 if (expect_true (!reify)) 2285 if (ecb_expect_true (!reify))
1870 { 2286 {
1871 ++fdchangecnt; 2287 ++fdchangecnt;
1872 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2288 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1873 fdchanges [fdchangecnt - 1] = fd; 2289 fdchanges [fdchangecnt - 1] = fd;
1874 } 2290 }
1875} 2291}
1876 2292
1877/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2293/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1878inline_speed void ecb_cold 2294inline_speed ecb_cold void
1879fd_kill (EV_P_ int fd) 2295fd_kill (EV_P_ int fd)
1880{ 2296{
1881 ev_io *w; 2297 ev_io *w;
1882 2298
1883 while ((w = (ev_io *)anfds [fd].head)) 2299 while ((w = (ev_io *)anfds [fd].head))
… …
1886 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2302 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1887 } 2303 }
1888} 2304}
1889 2305
1890/* check whether the given fd is actually valid, for error recovery */ 2306/* check whether the given fd is actually valid, for error recovery */
1891inline_size int ecb_cold 2307inline_size ecb_cold int
1892fd_valid (int fd) 2308fd_valid (int fd)
1893{ 2309{
1894#ifdef _WIN32 2310#ifdef _WIN32
1895 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2311 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1896#else 2312#else
1897 return fcntl (fd, F_GETFD) != -1; 2313 return fcntl (fd, F_GETFD) != -1;
1898#endif 2314#endif
1899} 2315}
1900 2316
1901/* called on EBADF to verify fds */ 2317/* called on EBADF to verify fds */
1902static void noinline ecb_cold 2318ecb_noinline ecb_cold
2319static void
1903fd_ebadf (EV_P) 2320fd_ebadf (EV_P)
1904{ 2321{
1905 int fd; 2322 int fd;
1906 2323
1907 for (fd = 0; fd < anfdmax; ++fd) 2324 for (fd = 0; fd < anfdmax; ++fd)
… …
1909 if (!fd_valid (fd) && errno == EBADF) 2326 if (!fd_valid (fd) && errno == EBADF)
1910 fd_kill (EV_A_ fd); 2327 fd_kill (EV_A_ fd);
1911} 2328}
1912 2329
1913/* called on ENOMEM in select/poll to kill some fds and retry */ 2330/* called on ENOMEM in select/poll to kill some fds and retry */
1914static void noinline ecb_cold 2331ecb_noinline ecb_cold
2332static void
1915fd_enomem (EV_P) 2333fd_enomem (EV_P)
1916{ 2334{
1917 int fd; 2335 int fd;
1918 2336
1919 for (fd = anfdmax; fd--; ) 2337 for (fd = anfdmax; fd--; )
… …
1923 break; 2341 break;
1924 } 2342 }
1925} 2343}
1926 2344
1927/* usually called after fork if backend needs to re-arm all fds from scratch */ 2345/* usually called after fork if backend needs to re-arm all fds from scratch */
1928static void noinline 2346ecb_noinline
2347static void
1929fd_rearm_all (EV_P) 2348fd_rearm_all (EV_P)
1930{ 2349{
1931 int fd; 2350 int fd;
1932 2351
1933 for (fd = 0; fd < anfdmax; ++fd) 2352 for (fd = 0; fd < anfdmax; ++fd)
… …
1986 ev_tstamp minat; 2405 ev_tstamp minat;
1987 ANHE *minpos; 2406 ANHE *minpos;
1988 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2407 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1989 2408
1990 /* find minimum child */ 2409 /* find minimum child */
1991 if (expect_true (pos + DHEAP - 1 < E)) 2410 if (ecb_expect_true (pos + DHEAP - 1 < E))
1992 { 2411 {
1993 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2412 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1994 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2413 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1995 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2414 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1996 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2415 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1997 } 2416 }
1998 else if (pos < E) 2417 else if (pos < E)
1999 { 2418 {
2000 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2419 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2001 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2420 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2002 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2421 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2003 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2422 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2004 } 2423 }
2005 else 2424 else
2006 break; 2425 break;
2007 2426
2008 if (ANHE_at (he) <= minat) 2427 if (ANHE_at (he) <= minat)
… …
2016 2435
2017 heap [k] = he; 2436 heap [k] = he;
2018 ev_active (ANHE_w (he)) = k; 2437 ev_active (ANHE_w (he)) = k;
2019} 2438}
2020 2439
2021#else /* 4HEAP */ 2440#else /* not 4HEAP */
2022 2441
2023#define HEAP0 1 2442#define HEAP0 1
2024#define HPARENT(k) ((k) >> 1) 2443#define HPARENT(k) ((k) >> 1)
2025#define UPHEAP_DONE(p,k) (!(p)) 2444#define UPHEAP_DONE(p,k) (!(p))
2026 2445
… …
2114 2533
2115/*****************************************************************************/ 2534/*****************************************************************************/
2116 2535
2117#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2536#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2118 2537
2119static void noinline ecb_cold 2538ecb_noinline ecb_cold
2539static void
2120evpipe_init (EV_P) 2540evpipe_init (EV_P)
2121{ 2541{
2122 if (!ev_is_active (&pipe_w)) 2542 if (!ev_is_active (&pipe_w))
2123 { 2543 {
2124 int fds [2]; 2544 int fds [2];
… …
2164inline_speed void 2584inline_speed void
2165evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2585evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2166{ 2586{
2167 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2587 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2168 2588
2169 if (expect_true (*flag)) 2589 if (ecb_expect_true (*flag))
2170 return; 2590 return;
2171 2591
2172 *flag = 1; 2592 *flag = 1;
2173 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2593 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2174 2594
… …
2195#endif 2615#endif
2196 { 2616 {
2197#ifdef _WIN32 2617#ifdef _WIN32
2198 WSABUF buf; 2618 WSABUF buf;
2199 DWORD sent; 2619 DWORD sent;
2200 buf.buf = &buf; 2620 buf.buf = (char *)&buf;
2201 buf.len = 1; 2621 buf.len = 1;
2202 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2622 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2203#else 2623#else
2204 write (evpipe [1], &(evpipe [1]), 1); 2624 write (evpipe [1], &(evpipe [1]), 1);
2205#endif 2625#endif
… …
2251 sig_pending = 0; 2671 sig_pending = 0;
2252 2672
2253 ECB_MEMORY_FENCE; 2673 ECB_MEMORY_FENCE;
2254 2674
2255 for (i = EV_NSIG - 1; i--; ) 2675 for (i = EV_NSIG - 1; i--; )
2256 if (expect_false (signals [i].pending)) 2676 if (ecb_expect_false (signals [i].pending))
2257 ev_feed_signal_event (EV_A_ i + 1); 2677 ev_feed_signal_event (EV_A_ i + 1);
2258 } 2678 }
2259#endif 2679#endif
2260 2680
2261#if EV_ASYNC_ENABLE 2681#if EV_ASYNC_ENABLE
… …
2277} 2697}
2278 2698
2279/*****************************************************************************/ 2699/*****************************************************************************/
2280 2700
2281void 2701void
2282ev_feed_signal (int signum) EV_THROW 2702ev_feed_signal (int signum) EV_NOEXCEPT
2283{ 2703{
2284#if EV_MULTIPLICITY 2704#if EV_MULTIPLICITY
2285 EV_P; 2705 EV_P;
2286 ECB_MEMORY_FENCE_ACQUIRE; 2706 ECB_MEMORY_FENCE_ACQUIRE;
2287 EV_A = signals [signum - 1].loop; 2707 EV_A = signals [signum - 1].loop;
… …
2302#endif 2722#endif
2303 2723
2304 ev_feed_signal (signum); 2724 ev_feed_signal (signum);
2305} 2725}
2306 2726
2307void noinline 2727ecb_noinline
2728void
2308ev_feed_signal_event (EV_P_ int signum) EV_THROW 2729ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2309{ 2730{
2310 WL w; 2731 WL w;
2311 2732
2312 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2733 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2313 return; 2734 return;
2314 2735
2315 --signum; 2736 --signum;
2316 2737
2317#if EV_MULTIPLICITY 2738#if EV_MULTIPLICITY
2318 /* it is permissible to try to feed a signal to the wrong loop */ 2739 /* it is permissible to try to feed a signal to the wrong loop */
2319 /* or, likely more useful, feeding a signal nobody is waiting for */ 2740 /* or, likely more useful, feeding a signal nobody is waiting for */
2320 2741
2321 if (expect_false (signals [signum].loop != EV_A)) 2742 if (ecb_expect_false (signals [signum].loop != EV_A))
2322 return; 2743 return;
2323#endif 2744#endif
2324 2745
2325 signals [signum].pending = 0; 2746 signals [signum].pending = 0;
2326 ECB_MEMORY_FENCE_RELEASE; 2747 ECB_MEMORY_FENCE_RELEASE;
… …
2422# include "ev_kqueue.c" 2843# include "ev_kqueue.c"
2423#endif 2844#endif
2424#if EV_USE_EPOLL 2845#if EV_USE_EPOLL
2425# include "ev_epoll.c" 2846# include "ev_epoll.c"
2426#endif 2847#endif
2848#if EV_USE_LINUXAIO
2849# include "ev_linuxaio.c"
2850#endif
2851#if EV_USE_IOURING
2852# include "ev_iouring.c"
2853#endif
2427#if EV_USE_POLL 2854#if EV_USE_POLL
2428# include "ev_poll.c" 2855# include "ev_poll.c"
2429#endif 2856#endif
2430#if EV_USE_SELECT 2857#if EV_USE_SELECT
2431# include "ev_select.c" 2858# include "ev_select.c"
2432#endif 2859#endif
2433 2860
2434int ecb_cold 2861ecb_cold int
2435ev_version_major (void) EV_THROW 2862ev_version_major (void) EV_NOEXCEPT
2436{ 2863{
2437 return EV_VERSION_MAJOR; 2864 return EV_VERSION_MAJOR;
2438} 2865}
2439 2866
2440int ecb_cold 2867ecb_cold int
2441ev_version_minor (void) EV_THROW 2868ev_version_minor (void) EV_NOEXCEPT
2442{ 2869{
2443 return EV_VERSION_MINOR; 2870 return EV_VERSION_MINOR;
2444} 2871}
2445 2872
2446/* return true if we are running with elevated privileges and should ignore env variables */ 2873/* return true if we are running with elevated privileges and should ignore env variables */
2447int inline_size ecb_cold 2874inline_size ecb_cold int
2448enable_secure (void) 2875enable_secure (void)
2449{ 2876{
2450#ifdef _WIN32 2877#ifdef _WIN32
2451 return 0; 2878 return 0;
2452#else 2879#else
2453 return getuid () != geteuid () 2880 return getuid () != geteuid ()
2454 || getgid () != getegid (); 2881 || getgid () != getegid ();
2455#endif 2882#endif
2456} 2883}
2457 2884
2458unsigned int ecb_cold 2885ecb_cold
2886unsigned int
2459ev_supported_backends (void) EV_THROW 2887ev_supported_backends (void) EV_NOEXCEPT
2460{ 2888{
2461 unsigned int flags = 0; 2889 unsigned int flags = 0;
2462 2890
2463 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2891 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2464 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2892 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2465 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2893 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2894 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2895 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2466 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2896 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2467 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2897 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2468 2898
2469 return flags; 2899 return flags;
2470} 2900}
2471 2901
2472unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2473ev_recommended_backends (void) EV_THROW 2904ev_recommended_backends (void) EV_NOEXCEPT
2474{ 2905{
2475 unsigned int flags = ev_supported_backends (); 2906 unsigned int flags = ev_supported_backends ();
2476 2907
2477#ifndef __NetBSD__ 2908#ifndef __NetBSD__
2478 /* kqueue is borked on everything but netbsd apparently */ 2909 /* kqueue is borked on everything but netbsd apparently */
… …
2486#endif 2917#endif
2487#ifdef __FreeBSD__ 2918#ifdef __FreeBSD__
2488 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2919 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2489#endif 2920#endif
2490 2921
2922 /* TODO: linuxaio is very experimental */
2923#if !EV_RECOMMEND_LINUXAIO
2924 flags &= ~EVBACKEND_LINUXAIO;
2925#endif
2926 /* TODO: linuxaio is super experimental */
2927#if !EV_RECOMMEND_IOURING
2928 flags &= ~EVBACKEND_IOURING;
2929#endif
2930
2491 return flags; 2931 return flags;
2492} 2932}
2493 2933
2494unsigned int ecb_cold 2934ecb_cold
2935unsigned int
2495ev_embeddable_backends (void) EV_THROW 2936ev_embeddable_backends (void) EV_NOEXCEPT
2496{ 2937{
2497 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2938 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2498 2939
2499 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2940 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2500 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2941 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2501 flags &= ~EVBACKEND_EPOLL; 2942 flags &= ~EVBACKEND_EPOLL;
2502 2943
2944 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2945
2946 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2947 * because our backend_fd is the epoll fd we need as fallback.
2948 * if the kernel ever is fixed, this might change...
2949 */
2950
2503 return flags; 2951 return flags;
2504} 2952}
2505 2953
2506unsigned int 2954unsigned int
2507ev_backend (EV_P) EV_THROW 2955ev_backend (EV_P) EV_NOEXCEPT
2508{ 2956{
2509 return backend; 2957 return backend;
2510} 2958}
2511 2959
2512#if EV_FEATURE_API 2960#if EV_FEATURE_API
2513unsigned int 2961unsigned int
2514ev_iteration (EV_P) EV_THROW 2962ev_iteration (EV_P) EV_NOEXCEPT
2515{ 2963{
2516 return loop_count; 2964 return loop_count;
2517} 2965}
2518 2966
2519unsigned int 2967unsigned int
2520ev_depth (EV_P) EV_THROW 2968ev_depth (EV_P) EV_NOEXCEPT
2521{ 2969{
2522 return loop_depth; 2970 return loop_depth;
2523} 2971}
2524 2972
2525void 2973void
2526ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2974ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2527{ 2975{
2528 io_blocktime = interval; 2976 io_blocktime = interval;
2529} 2977}
2530 2978
2531void 2979void
2532ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2980ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2533{ 2981{
2534 timeout_blocktime = interval; 2982 timeout_blocktime = interval;
2535} 2983}
2536 2984
2537void 2985void
2538ev_set_userdata (EV_P_ void *data) EV_THROW 2986ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2539{ 2987{
2540 userdata = data; 2988 userdata = data;
2541} 2989}
2542 2990
2543void * 2991void *
2544ev_userdata (EV_P) EV_THROW 2992ev_userdata (EV_P) EV_NOEXCEPT
2545{ 2993{
2546 return userdata; 2994 return userdata;
2547} 2995}
2548 2996
2549void 2997void
2550ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2998ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2551{ 2999{
2552 invoke_cb = invoke_pending_cb; 3000 invoke_cb = invoke_pending_cb;
2553} 3001}
2554 3002
2555void 3003void
2556ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 3004ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2557{ 3005{
2558 release_cb = release; 3006 release_cb = release;
2559 acquire_cb = acquire; 3007 acquire_cb = acquire;
2560} 3008}
2561#endif 3009#endif
2562 3010
2563/* initialise a loop structure, must be zero-initialised */ 3011/* initialise a loop structure, must be zero-initialised */
2564static void noinline ecb_cold 3012ecb_noinline ecb_cold
3013static void
2565loop_init (EV_P_ unsigned int flags) EV_THROW 3014loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2566{ 3015{
2567 if (!backend) 3016 if (!backend)
2568 { 3017 {
2569 origflags = flags; 3018 origflags = flags;
2570 3019
… …
2628 3077
2629 if (!(flags & EVBACKEND_MASK)) 3078 if (!(flags & EVBACKEND_MASK))
2630 flags |= ev_recommended_backends (); 3079 flags |= ev_recommended_backends ();
2631 3080
2632#if EV_USE_IOCP 3081#if EV_USE_IOCP
2633 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3082 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2634#endif 3083#endif
2635#if EV_USE_PORT 3084#if EV_USE_PORT
2636 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3085 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2637#endif 3086#endif
2638#if EV_USE_KQUEUE 3087#if EV_USE_KQUEUE
2639 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3088 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3089#endif
3090#if EV_USE_IOURING
3091 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3092#endif
3093#if EV_USE_LINUXAIO
3094 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2640#endif 3095#endif
2641#if EV_USE_EPOLL 3096#if EV_USE_EPOLL
2642 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3097 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2643#endif 3098#endif
2644#if EV_USE_POLL 3099#if EV_USE_POLL
2645 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3100 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2646#endif 3101#endif
2647#if EV_USE_SELECT 3102#if EV_USE_SELECT
2648 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3103 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2649#endif 3104#endif
2650 3105
2651 ev_prepare_init (&pending_w, pendingcb); 3106 ev_prepare_init (&pending_w, pendingcb);
2652 3107
2653#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3108#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2656#endif 3111#endif
2657 } 3112 }
2658} 3113}
2659 3114
2660/* free up a loop structure */ 3115/* free up a loop structure */
2661void ecb_cold 3116ecb_cold
3117void
2662ev_loop_destroy (EV_P) 3118ev_loop_destroy (EV_P)
2663{ 3119{
2664 int i; 3120 int i;
2665 3121
2666#if EV_MULTIPLICITY 3122#if EV_MULTIPLICITY
… …
2669 return; 3125 return;
2670#endif 3126#endif
2671 3127
2672#if EV_CLEANUP_ENABLE 3128#if EV_CLEANUP_ENABLE
2673 /* queue cleanup watchers (and execute them) */ 3129 /* queue cleanup watchers (and execute them) */
2674 if (expect_false (cleanupcnt)) 3130 if (ecb_expect_false (cleanupcnt))
2675 { 3131 {
2676 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3132 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2677 EV_INVOKE_PENDING; 3133 EV_INVOKE_PENDING;
2678 } 3134 }
2679#endif 3135#endif
… …
2707 3163
2708 if (backend_fd >= 0) 3164 if (backend_fd >= 0)
2709 close (backend_fd); 3165 close (backend_fd);
2710 3166
2711#if EV_USE_IOCP 3167#if EV_USE_IOCP
2712 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3168 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2713#endif 3169#endif
2714#if EV_USE_PORT 3170#if EV_USE_PORT
2715 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3171 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2716#endif 3172#endif
2717#if EV_USE_KQUEUE 3173#if EV_USE_KQUEUE
2718 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3174 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3175#endif
3176#if EV_USE_IOURING
3177 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3178#endif
3179#if EV_USE_LINUXAIO
3180 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2719#endif 3181#endif
2720#if EV_USE_EPOLL 3182#if EV_USE_EPOLL
2721 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3183 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2722#endif 3184#endif
2723#if EV_USE_POLL 3185#if EV_USE_POLL
2724 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3186 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2725#endif 3187#endif
2726#if EV_USE_SELECT 3188#if EV_USE_SELECT
2727 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3189 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2728#endif 3190#endif
2729 3191
2730 for (i = NUMPRI; i--; ) 3192 for (i = NUMPRI; i--; )
2731 { 3193 {
2732 array_free (pending, [i]); 3194 array_free (pending, [i]);
… …
2774 3236
2775inline_size void 3237inline_size void
2776loop_fork (EV_P) 3238loop_fork (EV_P)
2777{ 3239{
2778#if EV_USE_PORT 3240#if EV_USE_PORT
2779 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3241 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2780#endif 3242#endif
2781#if EV_USE_KQUEUE 3243#if EV_USE_KQUEUE
2782 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3244 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3245#endif
3246#if EV_USE_IOURING
3247 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3248#endif
3249#if EV_USE_LINUXAIO
3250 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2783#endif 3251#endif
2784#if EV_USE_EPOLL 3252#if EV_USE_EPOLL
2785 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3253 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2786#endif 3254#endif
2787#if EV_USE_INOTIFY 3255#if EV_USE_INOTIFY
2788 infy_fork (EV_A); 3256 infy_fork (EV_A);
2789#endif 3257#endif
2790 3258
2791#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3259#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2792 if (ev_is_active (&pipe_w)) 3260 if (ev_is_active (&pipe_w) && postfork != 2)
2793 { 3261 {
2794 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3262 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2795 3263
2796 ev_ref (EV_A); 3264 ev_ref (EV_A);
2797 ev_io_stop (EV_A_ &pipe_w); 3265 ev_io_stop (EV_A_ &pipe_w);
… …
2808 postfork = 0; 3276 postfork = 0;
2809} 3277}
2810 3278
2811#if EV_MULTIPLICITY 3279#if EV_MULTIPLICITY
2812 3280
3281ecb_cold
2813struct ev_loop * ecb_cold 3282struct ev_loop *
2814ev_loop_new (unsigned int flags) EV_THROW 3283ev_loop_new (unsigned int flags) EV_NOEXCEPT
2815{ 3284{
2816 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3285 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2817 3286
2818 memset (EV_A, 0, sizeof (struct ev_loop)); 3287 memset (EV_A, 0, sizeof (struct ev_loop));
2819 loop_init (EV_A_ flags); 3288 loop_init (EV_A_ flags);
… …
2826} 3295}
2827 3296
2828#endif /* multiplicity */ 3297#endif /* multiplicity */
2829 3298
2830#if EV_VERIFY 3299#if EV_VERIFY
2831static void noinline ecb_cold 3300ecb_noinline ecb_cold
3301static void
2832verify_watcher (EV_P_ W w) 3302verify_watcher (EV_P_ W w)
2833{ 3303{
2834 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3304 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2835 3305
2836 if (w->pending) 3306 if (w->pending)
2837 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3307 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2838} 3308}
2839 3309
2840static void noinline ecb_cold 3310ecb_noinline ecb_cold
3311static void
2841verify_heap (EV_P_ ANHE *heap, int N) 3312verify_heap (EV_P_ ANHE *heap, int N)
2842{ 3313{
2843 int i; 3314 int i;
2844 3315
2845 for (i = HEAP0; i < N + HEAP0; ++i) 3316 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2850 3321
2851 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3322 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2852 } 3323 }
2853} 3324}
2854 3325
2855static void noinline ecb_cold 3326ecb_noinline ecb_cold
3327static void
2856array_verify (EV_P_ W *ws, int cnt) 3328array_verify (EV_P_ W *ws, int cnt)
2857{ 3329{
2858 while (cnt--) 3330 while (cnt--)
2859 { 3331 {
2860 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3332 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2863} 3335}
2864#endif 3336#endif
2865 3337
2866#if EV_FEATURE_API 3338#if EV_FEATURE_API
2867void ecb_cold 3339void ecb_cold
2868ev_verify (EV_P) EV_THROW 3340ev_verify (EV_P) EV_NOEXCEPT
2869{ 3341{
2870#if EV_VERIFY 3342#if EV_VERIFY
2871 int i; 3343 int i;
2872 WL w, w2; 3344 WL w, w2;
2873 3345
… …
2949#endif 3421#endif
2950} 3422}
2951#endif 3423#endif
2952 3424
2953#if EV_MULTIPLICITY 3425#if EV_MULTIPLICITY
3426ecb_cold
2954struct ev_loop * ecb_cold 3427struct ev_loop *
2955#else 3428#else
2956int 3429int
2957#endif 3430#endif
2958ev_default_loop (unsigned int flags) EV_THROW 3431ev_default_loop (unsigned int flags) EV_NOEXCEPT
2959{ 3432{
2960 if (!ev_default_loop_ptr) 3433 if (!ev_default_loop_ptr)
2961 { 3434 {
2962#if EV_MULTIPLICITY 3435#if EV_MULTIPLICITY
2963 EV_P = ev_default_loop_ptr = &default_loop_struct; 3436 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2982 3455
2983 return ev_default_loop_ptr; 3456 return ev_default_loop_ptr;
2984} 3457}
2985 3458
2986void 3459void
2987ev_loop_fork (EV_P) EV_THROW 3460ev_loop_fork (EV_P) EV_NOEXCEPT
2988{ 3461{
2989 postfork = 1; 3462 postfork = 1;
2990} 3463}
2991 3464
2992/*****************************************************************************/ 3465/*****************************************************************************/
… …
2996{ 3469{
2997 EV_CB_INVOKE ((W)w, revents); 3470 EV_CB_INVOKE ((W)w, revents);
2998} 3471}
2999 3472
3000unsigned int 3473unsigned int
3001ev_pending_count (EV_P) EV_THROW 3474ev_pending_count (EV_P) EV_NOEXCEPT
3002{ 3475{
3003 int pri; 3476 int pri;
3004 unsigned int count = 0; 3477 unsigned int count = 0;
3005 3478
3006 for (pri = NUMPRI; pri--; ) 3479 for (pri = NUMPRI; pri--; )
3007 count += pendingcnt [pri]; 3480 count += pendingcnt [pri];
3008 3481
3009 return count; 3482 return count;
3010} 3483}
3011 3484
3012void noinline 3485ecb_noinline
3486void
3013ev_invoke_pending (EV_P) 3487ev_invoke_pending (EV_P)
3014{ 3488{
3015 pendingpri = NUMPRI; 3489 pendingpri = NUMPRI;
3016 3490
3017 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3491 do
3018 { 3492 {
3019 --pendingpri; 3493 --pendingpri;
3020 3494
3495 /* pendingpri possibly gets modified in the inner loop */
3021 while (pendingcnt [pendingpri]) 3496 while (pendingcnt [pendingpri])
3022 { 3497 {
3023 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3498 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3024 3499
3025 p->w->pending = 0; 3500 p->w->pending = 0;
3026 EV_CB_INVOKE (p->w, p->events); 3501 EV_CB_INVOKE (p->w, p->events);
3027 EV_FREQUENT_CHECK; 3502 EV_FREQUENT_CHECK;
3028 } 3503 }
3029 } 3504 }
3505 while (pendingpri);
3030} 3506}
3031 3507
3032#if EV_IDLE_ENABLE 3508#if EV_IDLE_ENABLE
3033/* make idle watchers pending. this handles the "call-idle */ 3509/* make idle watchers pending. this handles the "call-idle */
3034/* only when higher priorities are idle" logic */ 3510/* only when higher priorities are idle" logic */
3035inline_size void 3511inline_size void
3036idle_reify (EV_P) 3512idle_reify (EV_P)
3037{ 3513{
3038 if (expect_false (idleall)) 3514 if (ecb_expect_false (idleall))
3039 { 3515 {
3040 int pri; 3516 int pri;
3041 3517
3042 for (pri = NUMPRI; pri--; ) 3518 for (pri = NUMPRI; pri--; )
3043 { 3519 {
… …
3073 { 3549 {
3074 ev_at (w) += w->repeat; 3550 ev_at (w) += w->repeat;
3075 if (ev_at (w) < mn_now) 3551 if (ev_at (w) < mn_now)
3076 ev_at (w) = mn_now; 3552 ev_at (w) = mn_now;
3077 3553
3078 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3554 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3079 3555
3080 ANHE_at_cache (timers [HEAP0]); 3556 ANHE_at_cache (timers [HEAP0]);
3081 downheap (timers, timercnt, HEAP0); 3557 downheap (timers, timercnt, HEAP0);
3082 } 3558 }
3083 else 3559 else
… …
3092 } 3568 }
3093} 3569}
3094 3570
3095#if EV_PERIODIC_ENABLE 3571#if EV_PERIODIC_ENABLE
3096 3572
3097static void noinline 3573ecb_noinline
3574static void
3098periodic_recalc (EV_P_ ev_periodic *w) 3575periodic_recalc (EV_P_ ev_periodic *w)
3099{ 3576{
3100 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3577 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3101 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3578 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3102 3579
… …
3104 while (at <= ev_rt_now) 3581 while (at <= ev_rt_now)
3105 { 3582 {
3106 ev_tstamp nat = at + w->interval; 3583 ev_tstamp nat = at + w->interval;
3107 3584
3108 /* when resolution fails us, we use ev_rt_now */ 3585 /* when resolution fails us, we use ev_rt_now */
3109 if (expect_false (nat == at)) 3586 if (ecb_expect_false (nat == at))
3110 { 3587 {
3111 at = ev_rt_now; 3588 at = ev_rt_now;
3112 break; 3589 break;
3113 } 3590 }
3114 3591
… …
3160 } 3637 }
3161} 3638}
3162 3639
3163/* simply recalculate all periodics */ 3640/* simply recalculate all periodics */
3164/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3641/* TODO: maybe ensure that at least one event happens when jumping forward? */
3165static void noinline ecb_cold 3642ecb_noinline ecb_cold
3643static void
3166periodics_reschedule (EV_P) 3644periodics_reschedule (EV_P)
3167{ 3645{
3168 int i; 3646 int i;
3169 3647
3170 /* adjust periodics after time jump */ 3648 /* adjust periodics after time jump */
… …
3183 reheap (periodics, periodiccnt); 3661 reheap (periodics, periodiccnt);
3184} 3662}
3185#endif 3663#endif
3186 3664
3187/* adjust all timers by a given offset */ 3665/* adjust all timers by a given offset */
3188static void noinline ecb_cold 3666ecb_noinline ecb_cold
3667static void
3189timers_reschedule (EV_P_ ev_tstamp adjust) 3668timers_reschedule (EV_P_ ev_tstamp adjust)
3190{ 3669{
3191 int i; 3670 int i;
3192 3671
3193 for (i = 0; i < timercnt; ++i) 3672 for (i = 0; i < timercnt; ++i)
… …
3202/* also detect if there was a timejump, and act accordingly */ 3681/* also detect if there was a timejump, and act accordingly */
3203inline_speed void 3682inline_speed void
3204time_update (EV_P_ ev_tstamp max_block) 3683time_update (EV_P_ ev_tstamp max_block)
3205{ 3684{
3206#if EV_USE_MONOTONIC 3685#if EV_USE_MONOTONIC
3207 if (expect_true (have_monotonic)) 3686 if (ecb_expect_true (have_monotonic))
3208 { 3687 {
3209 int i; 3688 int i;
3210 ev_tstamp odiff = rtmn_diff; 3689 ev_tstamp odiff = rtmn_diff;
3211 3690
3212 mn_now = get_clock (); 3691 mn_now = get_clock ();
3213 3692
3214 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3693 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3215 /* interpolate in the meantime */ 3694 /* interpolate in the meantime */
3216 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3695 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3217 { 3696 {
3218 ev_rt_now = rtmn_diff + mn_now; 3697 ev_rt_now = rtmn_diff + mn_now;
3219 return; 3698 return;
3220 } 3699 }
3221 3700
… …
3235 ev_tstamp diff; 3714 ev_tstamp diff;
3236 rtmn_diff = ev_rt_now - mn_now; 3715 rtmn_diff = ev_rt_now - mn_now;
3237 3716
3238 diff = odiff - rtmn_diff; 3717 diff = odiff - rtmn_diff;
3239 3718
3240 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3719 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3241 return; /* all is well */ 3720 return; /* all is well */
3242 3721
3243 ev_rt_now = ev_time (); 3722 ev_rt_now = ev_time ();
3244 mn_now = get_clock (); 3723 mn_now = get_clock ();
3245 now_floor = mn_now; 3724 now_floor = mn_now;
… …
3254 else 3733 else
3255#endif 3734#endif
3256 { 3735 {
3257 ev_rt_now = ev_time (); 3736 ev_rt_now = ev_time ();
3258 3737
3259 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3738 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3260 { 3739 {
3261 /* adjust timers. this is easy, as the offset is the same for all of them */ 3740 /* adjust timers. this is easy, as the offset is the same for all of them */
3262 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3741 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3263#if EV_PERIODIC_ENABLE 3742#if EV_PERIODIC_ENABLE
3264 periodics_reschedule (EV_A); 3743 periodics_reschedule (EV_A);
… …
3287#if EV_VERIFY >= 2 3766#if EV_VERIFY >= 2
3288 ev_verify (EV_A); 3767 ev_verify (EV_A);
3289#endif 3768#endif
3290 3769
3291#ifndef _WIN32 3770#ifndef _WIN32
3292 if (expect_false (curpid)) /* penalise the forking check even more */ 3771 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3293 if (expect_false (getpid () != curpid)) 3772 if (ecb_expect_false (getpid () != curpid))
3294 { 3773 {
3295 curpid = getpid (); 3774 curpid = getpid ();
3296 postfork = 1; 3775 postfork = 1;
3297 } 3776 }
3298#endif 3777#endif
3299 3778
3300#if EV_FORK_ENABLE 3779#if EV_FORK_ENABLE
3301 /* we might have forked, so queue fork handlers */ 3780 /* we might have forked, so queue fork handlers */
3302 if (expect_false (postfork)) 3781 if (ecb_expect_false (postfork))
3303 if (forkcnt) 3782 if (forkcnt)
3304 { 3783 {
3305 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3784 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3306 EV_INVOKE_PENDING; 3785 EV_INVOKE_PENDING;
3307 } 3786 }
3308#endif 3787#endif
3309 3788
3310#if EV_PREPARE_ENABLE 3789#if EV_PREPARE_ENABLE
3311 /* queue prepare watchers (and execute them) */ 3790 /* queue prepare watchers (and execute them) */
3312 if (expect_false (preparecnt)) 3791 if (ecb_expect_false (preparecnt))
3313 { 3792 {
3314 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3793 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3315 EV_INVOKE_PENDING; 3794 EV_INVOKE_PENDING;
3316 } 3795 }
3317#endif 3796#endif
3318 3797
3319 if (expect_false (loop_done)) 3798 if (ecb_expect_false (loop_done))
3320 break; 3799 break;
3321 3800
3322 /* we might have forked, so reify kernel state if necessary */ 3801 /* we might have forked, so reify kernel state if necessary */
3323 if (expect_false (postfork)) 3802 if (ecb_expect_false (postfork))
3324 loop_fork (EV_A); 3803 loop_fork (EV_A);
3325 3804
3326 /* update fd-related kernel structures */ 3805 /* update fd-related kernel structures */
3327 fd_reify (EV_A); 3806 fd_reify (EV_A);
3328 3807
… …
3333 3812
3334 /* remember old timestamp for io_blocktime calculation */ 3813 /* remember old timestamp for io_blocktime calculation */
3335 ev_tstamp prev_mn_now = mn_now; 3814 ev_tstamp prev_mn_now = mn_now;
3336 3815
3337 /* update time to cancel out callback processing overhead */ 3816 /* update time to cancel out callback processing overhead */
3338 time_update (EV_A_ 1e100); 3817 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3339 3818
3340 /* from now on, we want a pipe-wake-up */ 3819 /* from now on, we want a pipe-wake-up */
3341 pipe_write_wanted = 1; 3820 pipe_write_wanted = 1;
3342 3821
3343 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3822 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3344 3823
3345 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3824 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3346 { 3825 {
3347 waittime = MAX_BLOCKTIME; 3826 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3348 3827
3349 if (timercnt) 3828 if (timercnt)
3350 { 3829 {
3351 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3830 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3352 if (waittime > to) waittime = to; 3831 if (waittime > to) waittime = to;
… …
3359 if (waittime > to) waittime = to; 3838 if (waittime > to) waittime = to;
3360 } 3839 }
3361#endif 3840#endif
3362 3841
3363 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3842 /* don't let timeouts decrease the waittime below timeout_blocktime */
3364 if (expect_false (waittime < timeout_blocktime)) 3843 if (ecb_expect_false (waittime < timeout_blocktime))
3365 waittime = timeout_blocktime; 3844 waittime = timeout_blocktime;
3366 3845
3367 /* at this point, we NEED to wait, so we have to ensure */ 3846 /* at this point, we NEED to wait, so we have to ensure */
3368 /* to pass a minimum nonzero value to the backend */ 3847 /* to pass a minimum nonzero value to the backend */
3369 if (expect_false (waittime < backend_mintime)) 3848 if (ecb_expect_false (waittime < backend_mintime))
3370 waittime = backend_mintime; 3849 waittime = backend_mintime;
3371 3850
3372 /* extra check because io_blocktime is commonly 0 */ 3851 /* extra check because io_blocktime is commonly 0 */
3373 if (expect_false (io_blocktime)) 3852 if (ecb_expect_false (io_blocktime))
3374 { 3853 {
3375 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3854 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3376 3855
3377 if (sleeptime > waittime - backend_mintime) 3856 if (sleeptime > waittime - backend_mintime)
3378 sleeptime = waittime - backend_mintime; 3857 sleeptime = waittime - backend_mintime;
3379 3858
3380 if (expect_true (sleeptime > 0.)) 3859 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3381 { 3860 {
3382 ev_sleep (sleeptime); 3861 ev_sleep (sleeptime);
3383 waittime -= sleeptime; 3862 waittime -= sleeptime;
3384 } 3863 }
3385 } 3864 }
… …
3399 { 3878 {
3400 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3879 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3401 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3880 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3402 } 3881 }
3403 3882
3404
3405 /* update ev_rt_now, do magic */ 3883 /* update ev_rt_now, do magic */
3406 time_update (EV_A_ waittime + sleeptime); 3884 time_update (EV_A_ waittime + sleeptime);
3407 } 3885 }
3408 3886
3409 /* queue pending timers and reschedule them */ 3887 /* queue pending timers and reschedule them */
… …
3417 idle_reify (EV_A); 3895 idle_reify (EV_A);
3418#endif 3896#endif
3419 3897
3420#if EV_CHECK_ENABLE 3898#if EV_CHECK_ENABLE
3421 /* queue check watchers, to be executed first */ 3899 /* queue check watchers, to be executed first */
3422 if (expect_false (checkcnt)) 3900 if (ecb_expect_false (checkcnt))
3423 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3901 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3424#endif 3902#endif
3425 3903
3426 EV_INVOKE_PENDING; 3904 EV_INVOKE_PENDING;
3427 } 3905 }
3428 while (expect_true ( 3906 while (ecb_expect_true (
3429 activecnt 3907 activecnt
3430 && !loop_done 3908 && !loop_done
3431 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3909 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3432 )); 3910 ));
3433 3911
… …
3440 3918
3441 return activecnt; 3919 return activecnt;
3442} 3920}
3443 3921
3444void 3922void
3445ev_break (EV_P_ int how) EV_THROW 3923ev_break (EV_P_ int how) EV_NOEXCEPT
3446{ 3924{
3447 loop_done = how; 3925 loop_done = how;
3448} 3926}
3449 3927
3450void 3928void
3451ev_ref (EV_P) EV_THROW 3929ev_ref (EV_P) EV_NOEXCEPT
3452{ 3930{
3453 ++activecnt; 3931 ++activecnt;
3454} 3932}
3455 3933
3456void 3934void
3457ev_unref (EV_P) EV_THROW 3935ev_unref (EV_P) EV_NOEXCEPT
3458{ 3936{
3459 --activecnt; 3937 --activecnt;
3460} 3938}
3461 3939
3462void 3940void
3463ev_now_update (EV_P) EV_THROW 3941ev_now_update (EV_P) EV_NOEXCEPT
3464{ 3942{
3465 time_update (EV_A_ 1e100); 3943 time_update (EV_A_ EV_TSTAMP_HUGE);
3466} 3944}
3467 3945
3468void 3946void
3469ev_suspend (EV_P) EV_THROW 3947ev_suspend (EV_P) EV_NOEXCEPT
3470{ 3948{
3471 ev_now_update (EV_A); 3949 ev_now_update (EV_A);
3472} 3950}
3473 3951
3474void 3952void
3475ev_resume (EV_P) EV_THROW 3953ev_resume (EV_P) EV_NOEXCEPT
3476{ 3954{
3477 ev_tstamp mn_prev = mn_now; 3955 ev_tstamp mn_prev = mn_now;
3478 3956
3479 ev_now_update (EV_A); 3957 ev_now_update (EV_A);
3480 timers_reschedule (EV_A_ mn_now - mn_prev); 3958 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3497inline_size void 3975inline_size void
3498wlist_del (WL *head, WL elem) 3976wlist_del (WL *head, WL elem)
3499{ 3977{
3500 while (*head) 3978 while (*head)
3501 { 3979 {
3502 if (expect_true (*head == elem)) 3980 if (ecb_expect_true (*head == elem))
3503 { 3981 {
3504 *head = elem->next; 3982 *head = elem->next;
3505 break; 3983 break;
3506 } 3984 }
3507 3985
… …
3519 w->pending = 0; 3997 w->pending = 0;
3520 } 3998 }
3521} 3999}
3522 4000
3523int 4001int
3524ev_clear_pending (EV_P_ void *w) EV_THROW 4002ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3525{ 4003{
3526 W w_ = (W)w; 4004 W w_ = (W)w;
3527 int pending = w_->pending; 4005 int pending = w_->pending;
3528 4006
3529 if (expect_true (pending)) 4007 if (ecb_expect_true (pending))
3530 { 4008 {
3531 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4009 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3532 p->w = (W)&pending_w; 4010 p->w = (W)&pending_w;
3533 w_->pending = 0; 4011 w_->pending = 0;
3534 return p->events; 4012 return p->events;
… …
3561 w->active = 0; 4039 w->active = 0;
3562} 4040}
3563 4041
3564/*****************************************************************************/ 4042/*****************************************************************************/
3565 4043
3566void noinline 4044ecb_noinline
4045void
3567ev_io_start (EV_P_ ev_io *w) EV_THROW 4046ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3568{ 4047{
3569 int fd = w->fd; 4048 int fd = w->fd;
3570 4049
3571 if (expect_false (ev_is_active (w))) 4050 if (ecb_expect_false (ev_is_active (w)))
3572 return; 4051 return;
3573 4052
3574 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4053 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3575 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4054 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3576 4055
4056#if EV_VERIFY >= 2
4057 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4058#endif
3577 EV_FREQUENT_CHECK; 4059 EV_FREQUENT_CHECK;
3578 4060
3579 ev_start (EV_A_ (W)w, 1); 4061 ev_start (EV_A_ (W)w, 1);
3580 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4062 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3581 wlist_add (&anfds[fd].head, (WL)w); 4063 wlist_add (&anfds[fd].head, (WL)w);
3582 4064
3583 /* common bug, apparently */ 4065 /* common bug, apparently */
3584 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4066 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3585 4067
… …
3587 w->events &= ~EV__IOFDSET; 4069 w->events &= ~EV__IOFDSET;
3588 4070
3589 EV_FREQUENT_CHECK; 4071 EV_FREQUENT_CHECK;
3590} 4072}
3591 4073
3592void noinline 4074ecb_noinline
4075void
3593ev_io_stop (EV_P_ ev_io *w) EV_THROW 4076ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3594{ 4077{
3595 clear_pending (EV_A_ (W)w); 4078 clear_pending (EV_A_ (W)w);
3596 if (expect_false (!ev_is_active (w))) 4079 if (ecb_expect_false (!ev_is_active (w)))
3597 return; 4080 return;
3598 4081
3599 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4082 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3600 4083
4084#if EV_VERIFY >= 2
4085 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4086#endif
3601 EV_FREQUENT_CHECK; 4087 EV_FREQUENT_CHECK;
3602 4088
3603 wlist_del (&anfds[w->fd].head, (WL)w); 4089 wlist_del (&anfds[w->fd].head, (WL)w);
3604 ev_stop (EV_A_ (W)w); 4090 ev_stop (EV_A_ (W)w);
3605 4091
3606 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4092 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3607 4093
3608 EV_FREQUENT_CHECK; 4094 EV_FREQUENT_CHECK;
3609} 4095}
3610 4096
3611void noinline 4097ecb_noinline
4098void
3612ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4099ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3613{ 4100{
3614 if (expect_false (ev_is_active (w))) 4101 if (ecb_expect_false (ev_is_active (w)))
3615 return; 4102 return;
3616 4103
3617 ev_at (w) += mn_now; 4104 ev_at (w) += mn_now;
3618 4105
3619 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4106 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3620 4107
3621 EV_FREQUENT_CHECK; 4108 EV_FREQUENT_CHECK;
3622 4109
3623 ++timercnt; 4110 ++timercnt;
3624 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4111 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3625 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4112 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3626 ANHE_w (timers [ev_active (w)]) = (WT)w; 4113 ANHE_w (timers [ev_active (w)]) = (WT)w;
3627 ANHE_at_cache (timers [ev_active (w)]); 4114 ANHE_at_cache (timers [ev_active (w)]);
3628 upheap (timers, ev_active (w)); 4115 upheap (timers, ev_active (w));
3629 4116
3630 EV_FREQUENT_CHECK; 4117 EV_FREQUENT_CHECK;
3631 4118
3632 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4119 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3633} 4120}
3634 4121
3635void noinline 4122ecb_noinline
4123void
3636ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4124ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3637{ 4125{
3638 clear_pending (EV_A_ (W)w); 4126 clear_pending (EV_A_ (W)w);
3639 if (expect_false (!ev_is_active (w))) 4127 if (ecb_expect_false (!ev_is_active (w)))
3640 return; 4128 return;
3641 4129
3642 EV_FREQUENT_CHECK; 4130 EV_FREQUENT_CHECK;
3643 4131
3644 { 4132 {
… …
3646 4134
3647 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4135 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3648 4136
3649 --timercnt; 4137 --timercnt;
3650 4138
3651 if (expect_true (active < timercnt + HEAP0)) 4139 if (ecb_expect_true (active < timercnt + HEAP0))
3652 { 4140 {
3653 timers [active] = timers [timercnt + HEAP0]; 4141 timers [active] = timers [timercnt + HEAP0];
3654 adjustheap (timers, timercnt, active); 4142 adjustheap (timers, timercnt, active);
3655 } 4143 }
3656 } 4144 }
… …
3660 ev_stop (EV_A_ (W)w); 4148 ev_stop (EV_A_ (W)w);
3661 4149
3662 EV_FREQUENT_CHECK; 4150 EV_FREQUENT_CHECK;
3663} 4151}
3664 4152
3665void noinline 4153ecb_noinline
4154void
3666ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4155ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3667{ 4156{
3668 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3669 4158
3670 clear_pending (EV_A_ (W)w); 4159 clear_pending (EV_A_ (W)w);
3671 4160
… …
3688 4177
3689 EV_FREQUENT_CHECK; 4178 EV_FREQUENT_CHECK;
3690} 4179}
3691 4180
3692ev_tstamp 4181ev_tstamp
3693ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4182ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3694{ 4183{
3695 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4184 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3696} 4185}
3697 4186
3698#if EV_PERIODIC_ENABLE 4187#if EV_PERIODIC_ENABLE
3699void noinline 4188ecb_noinline
4189void
3700ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4190ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3701{ 4191{
3702 if (expect_false (ev_is_active (w))) 4192 if (ecb_expect_false (ev_is_active (w)))
3703 return; 4193 return;
3704 4194
3705 if (w->reschedule_cb) 4195 if (w->reschedule_cb)
3706 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4196 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3707 else if (w->interval) 4197 else if (w->interval)
… …
3714 4204
3715 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
3716 4206
3717 ++periodiccnt; 4207 ++periodiccnt;
3718 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4208 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3719 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4209 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3720 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4210 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3721 ANHE_at_cache (periodics [ev_active (w)]); 4211 ANHE_at_cache (periodics [ev_active (w)]);
3722 upheap (periodics, ev_active (w)); 4212 upheap (periodics, ev_active (w));
3723 4213
3724 EV_FREQUENT_CHECK; 4214 EV_FREQUENT_CHECK;
3725 4215
3726 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4216 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3727} 4217}
3728 4218
3729void noinline 4219ecb_noinline
4220void
3730ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4221ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3731{ 4222{
3732 clear_pending (EV_A_ (W)w); 4223 clear_pending (EV_A_ (W)w);
3733 if (expect_false (!ev_is_active (w))) 4224 if (ecb_expect_false (!ev_is_active (w)))
3734 return; 4225 return;
3735 4226
3736 EV_FREQUENT_CHECK; 4227 EV_FREQUENT_CHECK;
3737 4228
3738 { 4229 {
… …
3740 4231
3741 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4232 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3742 4233
3743 --periodiccnt; 4234 --periodiccnt;
3744 4235
3745 if (expect_true (active < periodiccnt + HEAP0)) 4236 if (ecb_expect_true (active < periodiccnt + HEAP0))
3746 { 4237 {
3747 periodics [active] = periodics [periodiccnt + HEAP0]; 4238 periodics [active] = periodics [periodiccnt + HEAP0];
3748 adjustheap (periodics, periodiccnt, active); 4239 adjustheap (periodics, periodiccnt, active);
3749 } 4240 }
3750 } 4241 }
… …
3752 ev_stop (EV_A_ (W)w); 4243 ev_stop (EV_A_ (W)w);
3753 4244
3754 EV_FREQUENT_CHECK; 4245 EV_FREQUENT_CHECK;
3755} 4246}
3756 4247
3757void noinline 4248ecb_noinline
4249void
3758ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4250ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3759{ 4251{
3760 /* TODO: use adjustheap and recalculation */ 4252 /* TODO: use adjustheap and recalculation */
3761 ev_periodic_stop (EV_A_ w); 4253 ev_periodic_stop (EV_A_ w);
3762 ev_periodic_start (EV_A_ w); 4254 ev_periodic_start (EV_A_ w);
3763} 4255}
… …
3767# define SA_RESTART 0 4259# define SA_RESTART 0
3768#endif 4260#endif
3769 4261
3770#if EV_SIGNAL_ENABLE 4262#if EV_SIGNAL_ENABLE
3771 4263
3772void noinline 4264ecb_noinline
4265void
3773ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4266ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3774{ 4267{
3775 if (expect_false (ev_is_active (w))) 4268 if (ecb_expect_false (ev_is_active (w)))
3776 return; 4269 return;
3777 4270
3778 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4271 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3779 4272
3780#if EV_MULTIPLICITY 4273#if EV_MULTIPLICITY
… …
3849 } 4342 }
3850 4343
3851 EV_FREQUENT_CHECK; 4344 EV_FREQUENT_CHECK;
3852} 4345}
3853 4346
3854void noinline 4347ecb_noinline
4348void
3855ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4349ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3856{ 4350{
3857 clear_pending (EV_A_ (W)w); 4351 clear_pending (EV_A_ (W)w);
3858 if (expect_false (!ev_is_active (w))) 4352 if (ecb_expect_false (!ev_is_active (w)))
3859 return; 4353 return;
3860 4354
3861 EV_FREQUENT_CHECK; 4355 EV_FREQUENT_CHECK;
3862 4356
3863 wlist_del (&signals [w->signum - 1].head, (WL)w); 4357 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3891#endif 4385#endif
3892 4386
3893#if EV_CHILD_ENABLE 4387#if EV_CHILD_ENABLE
3894 4388
3895void 4389void
3896ev_child_start (EV_P_ ev_child *w) EV_THROW 4390ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3897{ 4391{
3898#if EV_MULTIPLICITY 4392#if EV_MULTIPLICITY
3899 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4393 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3900#endif 4394#endif
3901 if (expect_false (ev_is_active (w))) 4395 if (ecb_expect_false (ev_is_active (w)))
3902 return; 4396 return;
3903 4397
3904 EV_FREQUENT_CHECK; 4398 EV_FREQUENT_CHECK;
3905 4399
3906 ev_start (EV_A_ (W)w, 1); 4400 ev_start (EV_A_ (W)w, 1);
… …
3908 4402
3909 EV_FREQUENT_CHECK; 4403 EV_FREQUENT_CHECK;
3910} 4404}
3911 4405
3912void 4406void
3913ev_child_stop (EV_P_ ev_child *w) EV_THROW 4407ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3914{ 4408{
3915 clear_pending (EV_A_ (W)w); 4409 clear_pending (EV_A_ (W)w);
3916 if (expect_false (!ev_is_active (w))) 4410 if (ecb_expect_false (!ev_is_active (w)))
3917 return; 4411 return;
3918 4412
3919 EV_FREQUENT_CHECK; 4413 EV_FREQUENT_CHECK;
3920 4414
3921 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4415 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3935 4429
3936#define DEF_STAT_INTERVAL 5.0074891 4430#define DEF_STAT_INTERVAL 5.0074891
3937#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4431#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3938#define MIN_STAT_INTERVAL 0.1074891 4432#define MIN_STAT_INTERVAL 0.1074891
3939 4433
3940static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4434ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3941 4435
3942#if EV_USE_INOTIFY 4436#if EV_USE_INOTIFY
3943 4437
3944/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4438/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3945# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4439# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3946 4440
3947static void noinline 4441ecb_noinline
4442static void
3948infy_add (EV_P_ ev_stat *w) 4443infy_add (EV_P_ ev_stat *w)
3949{ 4444{
3950 w->wd = inotify_add_watch (fs_fd, w->path, 4445 w->wd = inotify_add_watch (fs_fd, w->path,
3951 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4446 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3952 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4447 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4016 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4511 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4017 ev_timer_again (EV_A_ &w->timer); 4512 ev_timer_again (EV_A_ &w->timer);
4018 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4513 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4019} 4514}
4020 4515
4021static void noinline 4516ecb_noinline
4517static void
4022infy_del (EV_P_ ev_stat *w) 4518infy_del (EV_P_ ev_stat *w)
4023{ 4519{
4024 int slot; 4520 int slot;
4025 int wd = w->wd; 4521 int wd = w->wd;
4026 4522
… …
4033 4529
4034 /* remove this watcher, if others are watching it, they will rearm */ 4530 /* remove this watcher, if others are watching it, they will rearm */
4035 inotify_rm_watch (fs_fd, wd); 4531 inotify_rm_watch (fs_fd, wd);
4036} 4532}
4037 4533
4038static void noinline 4534ecb_noinline
4535static void
4039infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4536infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4040{ 4537{
4041 if (slot < 0) 4538 if (slot < 0)
4042 /* overflow, need to check for all hash slots */ 4539 /* overflow, need to check for all hash slots */
4043 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4540 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4079 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4576 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4080 ofs += sizeof (struct inotify_event) + ev->len; 4577 ofs += sizeof (struct inotify_event) + ev->len;
4081 } 4578 }
4082} 4579}
4083 4580
4084inline_size void ecb_cold 4581inline_size ecb_cold
4582void
4085ev_check_2625 (EV_P) 4583ev_check_2625 (EV_P)
4086{ 4584{
4087 /* kernels < 2.6.25 are borked 4585 /* kernels < 2.6.25 are borked
4088 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4586 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4089 */ 4587 */
… …
4179#else 4677#else
4180# define EV_LSTAT(p,b) lstat (p, b) 4678# define EV_LSTAT(p,b) lstat (p, b)
4181#endif 4679#endif
4182 4680
4183void 4681void
4184ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4682ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4185{ 4683{
4186 if (lstat (w->path, &w->attr) < 0) 4684 if (lstat (w->path, &w->attr) < 0)
4187 w->attr.st_nlink = 0; 4685 w->attr.st_nlink = 0;
4188 else if (!w->attr.st_nlink) 4686 else if (!w->attr.st_nlink)
4189 w->attr.st_nlink = 1; 4687 w->attr.st_nlink = 1;
4190} 4688}
4191 4689
4192static void noinline 4690ecb_noinline
4691static void
4193stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4692stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4194{ 4693{
4195 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4694 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4196 4695
4197 ev_statdata prev = w->attr; 4696 ev_statdata prev = w->attr;
… …
4228 ev_feed_event (EV_A_ w, EV_STAT); 4727 ev_feed_event (EV_A_ w, EV_STAT);
4229 } 4728 }
4230} 4729}
4231 4730
4232void 4731void
4233ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4732ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4234{ 4733{
4235 if (expect_false (ev_is_active (w))) 4734 if (ecb_expect_false (ev_is_active (w)))
4236 return; 4735 return;
4237 4736
4238 ev_stat_stat (EV_A_ w); 4737 ev_stat_stat (EV_A_ w);
4239 4738
4240 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4739 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4259 4758
4260 EV_FREQUENT_CHECK; 4759 EV_FREQUENT_CHECK;
4261} 4760}
4262 4761
4263void 4762void
4264ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4763ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4265{ 4764{
4266 clear_pending (EV_A_ (W)w); 4765 clear_pending (EV_A_ (W)w);
4267 if (expect_false (!ev_is_active (w))) 4766 if (ecb_expect_false (!ev_is_active (w)))
4268 return; 4767 return;
4269 4768
4270 EV_FREQUENT_CHECK; 4769 EV_FREQUENT_CHECK;
4271 4770
4272#if EV_USE_INOTIFY 4771#if EV_USE_INOTIFY
… …
4285} 4784}
4286#endif 4785#endif
4287 4786
4288#if EV_IDLE_ENABLE 4787#if EV_IDLE_ENABLE
4289void 4788void
4290ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4789ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4291{ 4790{
4292 if (expect_false (ev_is_active (w))) 4791 if (ecb_expect_false (ev_is_active (w)))
4293 return; 4792 return;
4294 4793
4295 pri_adjust (EV_A_ (W)w); 4794 pri_adjust (EV_A_ (W)w);
4296 4795
4297 EV_FREQUENT_CHECK; 4796 EV_FREQUENT_CHECK;
… …
4300 int active = ++idlecnt [ABSPRI (w)]; 4799 int active = ++idlecnt [ABSPRI (w)];
4301 4800
4302 ++idleall; 4801 ++idleall;
4303 ev_start (EV_A_ (W)w, active); 4802 ev_start (EV_A_ (W)w, active);
4304 4803
4305 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4804 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4306 idles [ABSPRI (w)][active - 1] = w; 4805 idles [ABSPRI (w)][active - 1] = w;
4307 } 4806 }
4308 4807
4309 EV_FREQUENT_CHECK; 4808 EV_FREQUENT_CHECK;
4310} 4809}
4311 4810
4312void 4811void
4313ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4812ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4314{ 4813{
4315 clear_pending (EV_A_ (W)w); 4814 clear_pending (EV_A_ (W)w);
4316 if (expect_false (!ev_is_active (w))) 4815 if (ecb_expect_false (!ev_is_active (w)))
4317 return; 4816 return;
4318 4817
4319 EV_FREQUENT_CHECK; 4818 EV_FREQUENT_CHECK;
4320 4819
4321 { 4820 {
… …
4332} 4831}
4333#endif 4832#endif
4334 4833
4335#if EV_PREPARE_ENABLE 4834#if EV_PREPARE_ENABLE
4336void 4835void
4337ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4836ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4338{ 4837{
4339 if (expect_false (ev_is_active (w))) 4838 if (ecb_expect_false (ev_is_active (w)))
4340 return; 4839 return;
4341 4840
4342 EV_FREQUENT_CHECK; 4841 EV_FREQUENT_CHECK;
4343 4842
4344 ev_start (EV_A_ (W)w, ++preparecnt); 4843 ev_start (EV_A_ (W)w, ++preparecnt);
4345 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4844 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4346 prepares [preparecnt - 1] = w; 4845 prepares [preparecnt - 1] = w;
4347 4846
4348 EV_FREQUENT_CHECK; 4847 EV_FREQUENT_CHECK;
4349} 4848}
4350 4849
4351void 4850void
4352ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4851ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4353{ 4852{
4354 clear_pending (EV_A_ (W)w); 4853 clear_pending (EV_A_ (W)w);
4355 if (expect_false (!ev_is_active (w))) 4854 if (ecb_expect_false (!ev_is_active (w)))
4356 return; 4855 return;
4357 4856
4358 EV_FREQUENT_CHECK; 4857 EV_FREQUENT_CHECK;
4359 4858
4360 { 4859 {
… …
4370} 4869}
4371#endif 4870#endif
4372 4871
4373#if EV_CHECK_ENABLE 4872#if EV_CHECK_ENABLE
4374void 4873void
4375ev_check_start (EV_P_ ev_check *w) EV_THROW 4874ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4376{ 4875{
4377 if (expect_false (ev_is_active (w))) 4876 if (ecb_expect_false (ev_is_active (w)))
4378 return; 4877 return;
4379 4878
4380 EV_FREQUENT_CHECK; 4879 EV_FREQUENT_CHECK;
4381 4880
4382 ev_start (EV_A_ (W)w, ++checkcnt); 4881 ev_start (EV_A_ (W)w, ++checkcnt);
4383 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4882 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4384 checks [checkcnt - 1] = w; 4883 checks [checkcnt - 1] = w;
4385 4884
4386 EV_FREQUENT_CHECK; 4885 EV_FREQUENT_CHECK;
4387} 4886}
4388 4887
4389void 4888void
4390ev_check_stop (EV_P_ ev_check *w) EV_THROW 4889ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4391{ 4890{
4392 clear_pending (EV_A_ (W)w); 4891 clear_pending (EV_A_ (W)w);
4393 if (expect_false (!ev_is_active (w))) 4892 if (ecb_expect_false (!ev_is_active (w)))
4394 return; 4893 return;
4395 4894
4396 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
4397 4896
4398 { 4897 {
… …
4407 EV_FREQUENT_CHECK; 4906 EV_FREQUENT_CHECK;
4408} 4907}
4409#endif 4908#endif
4410 4909
4411#if EV_EMBED_ENABLE 4910#if EV_EMBED_ENABLE
4412void noinline 4911ecb_noinline
4912void
4413ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4913ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4414{ 4914{
4415 ev_run (w->other, EVRUN_NOWAIT); 4915 ev_run (w->other, EVRUN_NOWAIT);
4416} 4916}
4417 4917
4418static void 4918static void
… …
4466 ev_idle_stop (EV_A_ idle); 4966 ev_idle_stop (EV_A_ idle);
4467} 4967}
4468#endif 4968#endif
4469 4969
4470void 4970void
4471ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4971ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4472{ 4972{
4473 if (expect_false (ev_is_active (w))) 4973 if (ecb_expect_false (ev_is_active (w)))
4474 return; 4974 return;
4475 4975
4476 { 4976 {
4477 EV_P = w->other; 4977 EV_P = w->other;
4478 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4978 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4497 4997
4498 EV_FREQUENT_CHECK; 4998 EV_FREQUENT_CHECK;
4499} 4999}
4500 5000
4501void 5001void
4502ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5002ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4503{ 5003{
4504 clear_pending (EV_A_ (W)w); 5004 clear_pending (EV_A_ (W)w);
4505 if (expect_false (!ev_is_active (w))) 5005 if (ecb_expect_false (!ev_is_active (w)))
4506 return; 5006 return;
4507 5007
4508 EV_FREQUENT_CHECK; 5008 EV_FREQUENT_CHECK;
4509 5009
4510 ev_io_stop (EV_A_ &w->io); 5010 ev_io_stop (EV_A_ &w->io);
… …
4517} 5017}
4518#endif 5018#endif
4519 5019
4520#if EV_FORK_ENABLE 5020#if EV_FORK_ENABLE
4521void 5021void
4522ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5022ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4523{ 5023{
4524 if (expect_false (ev_is_active (w))) 5024 if (ecb_expect_false (ev_is_active (w)))
4525 return; 5025 return;
4526 5026
4527 EV_FREQUENT_CHECK; 5027 EV_FREQUENT_CHECK;
4528 5028
4529 ev_start (EV_A_ (W)w, ++forkcnt); 5029 ev_start (EV_A_ (W)w, ++forkcnt);
4530 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5030 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4531 forks [forkcnt - 1] = w; 5031 forks [forkcnt - 1] = w;
4532 5032
4533 EV_FREQUENT_CHECK; 5033 EV_FREQUENT_CHECK;
4534} 5034}
4535 5035
4536void 5036void
4537ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5037ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4538{ 5038{
4539 clear_pending (EV_A_ (W)w); 5039 clear_pending (EV_A_ (W)w);
4540 if (expect_false (!ev_is_active (w))) 5040 if (ecb_expect_false (!ev_is_active (w)))
4541 return; 5041 return;
4542 5042
4543 EV_FREQUENT_CHECK; 5043 EV_FREQUENT_CHECK;
4544 5044
4545 { 5045 {
… …
4555} 5055}
4556#endif 5056#endif
4557 5057
4558#if EV_CLEANUP_ENABLE 5058#if EV_CLEANUP_ENABLE
4559void 5059void
4560ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5060ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4561{ 5061{
4562 if (expect_false (ev_is_active (w))) 5062 if (ecb_expect_false (ev_is_active (w)))
4563 return; 5063 return;
4564 5064
4565 EV_FREQUENT_CHECK; 5065 EV_FREQUENT_CHECK;
4566 5066
4567 ev_start (EV_A_ (W)w, ++cleanupcnt); 5067 ev_start (EV_A_ (W)w, ++cleanupcnt);
4568 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5068 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4569 cleanups [cleanupcnt - 1] = w; 5069 cleanups [cleanupcnt - 1] = w;
4570 5070
4571 /* cleanup watchers should never keep a refcount on the loop */ 5071 /* cleanup watchers should never keep a refcount on the loop */
4572 ev_unref (EV_A); 5072 ev_unref (EV_A);
4573 EV_FREQUENT_CHECK; 5073 EV_FREQUENT_CHECK;
4574} 5074}
4575 5075
4576void 5076void
4577ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5077ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4578{ 5078{
4579 clear_pending (EV_A_ (W)w); 5079 clear_pending (EV_A_ (W)w);
4580 if (expect_false (!ev_is_active (w))) 5080 if (ecb_expect_false (!ev_is_active (w)))
4581 return; 5081 return;
4582 5082
4583 EV_FREQUENT_CHECK; 5083 EV_FREQUENT_CHECK;
4584 ev_ref (EV_A); 5084 ev_ref (EV_A);
4585 5085
… …
4596} 5096}
4597#endif 5097#endif
4598 5098
4599#if EV_ASYNC_ENABLE 5099#if EV_ASYNC_ENABLE
4600void 5100void
4601ev_async_start (EV_P_ ev_async *w) EV_THROW 5101ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4602{ 5102{
4603 if (expect_false (ev_is_active (w))) 5103 if (ecb_expect_false (ev_is_active (w)))
4604 return; 5104 return;
4605 5105
4606 w->sent = 0; 5106 w->sent = 0;
4607 5107
4608 evpipe_init (EV_A); 5108 evpipe_init (EV_A);
4609 5109
4610 EV_FREQUENT_CHECK; 5110 EV_FREQUENT_CHECK;
4611 5111
4612 ev_start (EV_A_ (W)w, ++asynccnt); 5112 ev_start (EV_A_ (W)w, ++asynccnt);
4613 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5113 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4614 asyncs [asynccnt - 1] = w; 5114 asyncs [asynccnt - 1] = w;
4615 5115
4616 EV_FREQUENT_CHECK; 5116 EV_FREQUENT_CHECK;
4617} 5117}
4618 5118
4619void 5119void
4620ev_async_stop (EV_P_ ev_async *w) EV_THROW 5120ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4621{ 5121{
4622 clear_pending (EV_A_ (W)w); 5122 clear_pending (EV_A_ (W)w);
4623 if (expect_false (!ev_is_active (w))) 5123 if (ecb_expect_false (!ev_is_active (w)))
4624 return; 5124 return;
4625 5125
4626 EV_FREQUENT_CHECK; 5126 EV_FREQUENT_CHECK;
4627 5127
4628 { 5128 {
… …
4636 5136
4637 EV_FREQUENT_CHECK; 5137 EV_FREQUENT_CHECK;
4638} 5138}
4639 5139
4640void 5140void
4641ev_async_send (EV_P_ ev_async *w) EV_THROW 5141ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4642{ 5142{
4643 w->sent = 1; 5143 w->sent = 1;
4644 evpipe_write (EV_A_ &async_pending); 5144 evpipe_write (EV_A_ &async_pending);
4645} 5145}
4646#endif 5146#endif
… …
4683 5183
4684 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5184 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4685} 5185}
4686 5186
4687void 5187void
4688ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5188ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4689{ 5189{
4690 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5190 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4691
4692 if (expect_false (!once))
4693 {
4694 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4695 return;
4696 }
4697 5191
4698 once->cb = cb; 5192 once->cb = cb;
4699 once->arg = arg; 5193 once->arg = arg;
4700 5194
4701 ev_init (&once->io, once_cb_io); 5195 ev_init (&once->io, once_cb_io);
… …
4714} 5208}
4715 5209
4716/*****************************************************************************/ 5210/*****************************************************************************/
4717 5211
4718#if EV_WALK_ENABLE 5212#if EV_WALK_ENABLE
4719void ecb_cold 5213ecb_cold
5214void
4720ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5215ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4721{ 5216{
4722 int i, j; 5217 int i, j;
4723 ev_watcher_list *wl, *wn; 5218 ev_watcher_list *wl, *wn;
4724 5219
4725 if (types & (EV_IO | EV_EMBED)) 5220 if (types & (EV_IO | EV_EMBED))

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