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Comparing libev/ev.c (file contents):
Revision 1.462 by root, Sun Jan 5 02:59:36 2014 UTC vs.
Revision 1.509 by root, Sat Aug 17 05:30:16 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 (©) 2009-2013 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 __amd64 || __x86_64 || _M_AMD64 || _M_X64 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")
754 #elif __aarch64__
755 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
622 #elif (__sparc || __sparc__) && !__sparcv8 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 ()
665 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 800 #elif _MSC_VER >= 1500 /* VC++ 2008 */
666 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 801 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
676 #elif defined _WIN32 811 #elif defined _WIN32
677 #include <WinNT.h> 812 #include <WinNT.h>
678 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 813 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
679 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 814 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
680 #include <mbarrier.h> 815 #include <mbarrier.h>
681 #define ECB_MEMORY_FENCE __machine_rw_barrier () 816 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
682 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 817 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
683 #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 ()
684 #elif __xlC__ 820 #elif __xlC__
685 #define ECB_MEMORY_FENCE __sync () 821 #define ECB_MEMORY_FENCE __sync ()
686 #endif 822 #endif
687#endif 823#endif
688 824
689#ifndef ECB_MEMORY_FENCE 825#ifndef ECB_MEMORY_FENCE
690 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 826 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
691 /* 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, */
692 /* not just C11 atomics and atomic accesses */ 828 /* not just C11 atomics and atomic accesses */
693 #include <stdatomic.h> 829 #include <stdatomic.h>
694 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
695 /* any fence other than seq_cst, which isn't very efficient for us. */
696 /* Why that is, we don't know - either the C11 memory model is quite useless */
697 /* for most usages, or gcc and clang have a bug */
698 /* I *currently* lean towards the latter, and inefficiently implement */
699 /* all three of ecb's fences as a seq_cst fence */
700 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 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)
701 #endif 833 #endif
702#endif 834#endif
703 835
704#ifndef ECB_MEMORY_FENCE 836#ifndef ECB_MEMORY_FENCE
705 #if !ECB_AVOID_PTHREADS 837 #if !ECB_AVOID_PTHREADS
… …
725 857
726#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 858#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
727 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 859 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
728#endif 860#endif
729 861
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
730/*****************************************************************************/ 866/*****************************************************************************/
731 867
732#if __cplusplus 868#if ECB_CPP
733 #define ecb_inline static inline 869 #define ecb_inline static inline
734#elif ECB_GCC_VERSION(2,5) 870#elif ECB_GCC_VERSION(2,5)
735 #define ecb_inline static __inline__ 871 #define ecb_inline static __inline__
736#elif ECB_C99 872#elif ECB_C99
737 #define ecb_inline static inline 873 #define ecb_inline static inline
… …
751 887
752#define ECB_CONCAT_(a, b) a ## b 888#define ECB_CONCAT_(a, b) a ## b
753#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 889#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
754#define ECB_STRINGIFY_(a) # a 890#define ECB_STRINGIFY_(a) # a
755#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))
756 893
757#define ecb_function_ ecb_inline 894#define ecb_function_ ecb_inline
758 895
759#if ECB_GCC_VERSION(3,1) 896#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
760 #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)
761 #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)
762 #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)
763 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 919 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
764#else 920#else
765 #define ecb_attribute(attrlist)
766 #define ecb_is_constant(expr) 0
767 #define ecb_expect(expr,value) (expr)
768 #define ecb_prefetch(addr,rw,locality) 921 #define ecb_prefetch(addr,rw,locality)
769#endif 922#endif
770 923
771/* no emulation for ecb_decltype */ 924/* no emulation for ecb_decltype */
772#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; };
773 #define ecb_decltype(x) __decltype(x) 928 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
774#elif ECB_GCC_VERSION(3,0) 929#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
775 #define ecb_decltype(x) __typeof(x) 930 #define ecb_decltype(x) __typeof__ (x)
776#endif 931#endif
777 932
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
778#define ecb_noinline ecb_attribute ((__noinline__)) 950 #define ecb_noinline ecb_attribute ((__noinline__))
951#endif
952
779#define ecb_unused ecb_attribute ((__unused__)) 953#define ecb_unused ecb_attribute ((__unused__))
780#define ecb_const ecb_attribute ((__const__)) 954#define ecb_const ecb_attribute ((__const__))
781#define ecb_pure ecb_attribute ((__pure__)) 955#define ecb_pure ecb_attribute ((__pure__))
782 956
783#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 */
784 #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)
785#else 965#else
786 #define ecb_noreturn ecb_attribute ((__noreturn__)) 966 #define ecb_noreturn ecb_attribute ((__noreturn__))
787#endif 967#endif
788 968
789#if ECB_GCC_VERSION(4,3) 969#if ECB_GCC_VERSION(4,3)
… …
804/* for compatibility to the rest of the world */ 984/* for compatibility to the rest of the world */
805#define ecb_likely(expr) ecb_expect_true (expr) 985#define ecb_likely(expr) ecb_expect_true (expr)
806#define ecb_unlikely(expr) ecb_expect_false (expr) 986#define ecb_unlikely(expr) ecb_expect_false (expr)
807 987
808/* count trailing zero bits and count # of one bits */ 988/* count trailing zero bits and count # of one bits */
809#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))
810 /* 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 */
811 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 994 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
812 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 995 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
813 #define ecb_ctz32(x) __builtin_ctz (x) 996 #define ecb_ctz32(x) __builtin_ctz (x)
814 #define ecb_ctz64(x) __builtin_ctzll (x) 997 #define ecb_ctz64(x) __builtin_ctzll (x)
815 #define ecb_popcount32(x) __builtin_popcount (x) 998 #define ecb_popcount32(x) __builtin_popcount (x)
816 /* no popcountll */ 999 /* no popcountll */
817#else 1000#else
818 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1001 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
819 ecb_function_ int 1002 ecb_function_ ecb_const int
820 ecb_ctz32 (uint32_t x) 1003 ecb_ctz32 (uint32_t x)
821 { 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
822 int r = 0; 1010 int r = 0;
823 1011
824 x &= ~x + 1; /* this isolates the lowest bit */ 1012 x &= ~x + 1; /* this isolates the lowest bit */
825 1013
826#if ECB_branchless_on_i386 1014#if ECB_branchless_on_i386
… …
836 if (x & 0xff00ff00) r += 8; 1024 if (x & 0xff00ff00) r += 8;
837 if (x & 0xffff0000) r += 16; 1025 if (x & 0xffff0000) r += 16;
838#endif 1026#endif
839 1027
840 return r; 1028 return r;
1029#endif
841 } 1030 }
842 1031
843 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1032 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
844 ecb_function_ int 1033 ecb_function_ ecb_const int
845 ecb_ctz64 (uint64_t x) 1034 ecb_ctz64 (uint64_t x)
846 { 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
847 int shift = x & 0xffffffffU ? 0 : 32; 1041 int shift = x & 0xffffffff ? 0 : 32;
848 return ecb_ctz32 (x >> shift) + shift; 1042 return ecb_ctz32 (x >> shift) + shift;
1043#endif
849 } 1044 }
850 1045
851 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1046 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
852 ecb_function_ int 1047 ecb_function_ ecb_const int
853 ecb_popcount32 (uint32_t x) 1048 ecb_popcount32 (uint32_t x)
854 { 1049 {
855 x -= (x >> 1) & 0x55555555; 1050 x -= (x >> 1) & 0x55555555;
856 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1051 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
857 x = ((x >> 4) + x) & 0x0f0f0f0f; 1052 x = ((x >> 4) + x) & 0x0f0f0f0f;
858 x *= 0x01010101; 1053 x *= 0x01010101;
859 1054
860 return x >> 24; 1055 return x >> 24;
861 } 1056 }
862 1057
863 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1058 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
864 ecb_function_ int ecb_ld32 (uint32_t x) 1059 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
865 { 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
866 int r = 0; 1066 int r = 0;
867 1067
868 if (x >> 16) { x >>= 16; r += 16; } 1068 if (x >> 16) { x >>= 16; r += 16; }
869 if (x >> 8) { x >>= 8; r += 8; } 1069 if (x >> 8) { x >>= 8; r += 8; }
870 if (x >> 4) { x >>= 4; r += 4; } 1070 if (x >> 4) { x >>= 4; r += 4; }
871 if (x >> 2) { x >>= 2; r += 2; } 1071 if (x >> 2) { x >>= 2; r += 2; }
872 if (x >> 1) { r += 1; } 1072 if (x >> 1) { r += 1; }
873 1073
874 return r; 1074 return r;
1075#endif
875 } 1076 }
876 1077
877 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1078 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
878 ecb_function_ int ecb_ld64 (uint64_t x) 1079 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
879 { 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
880 int r = 0; 1086 int r = 0;
881 1087
882 if (x >> 32) { x >>= 32; r += 32; } 1088 if (x >> 32) { x >>= 32; r += 32; }
883 1089
884 return r + ecb_ld32 (x); 1090 return r + ecb_ld32 (x);
1091#endif
885 } 1092 }
886#endif 1093#endif
887 1094
888ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1095ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
889ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1096ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
890ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1097ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
891ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1098ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
892 1099
893ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1100ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
894ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1101ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
895{ 1102{
896 return ( (x * 0x0802U & 0x22110U) 1103 return ( (x * 0x0802U & 0x22110U)
897 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1104 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
898} 1105}
899 1106
900ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1107ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
901ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1108ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
902{ 1109{
903 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1110 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
904 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1111 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
905 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1112 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
906 x = ( x >> 8 ) | ( x << 8); 1113 x = ( x >> 8 ) | ( x << 8);
907 1114
908 return x; 1115 return x;
909} 1116}
910 1117
911ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1118ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
912ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1119ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
913{ 1120{
914 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1121 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
915 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1122 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
916 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1123 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
917 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1124 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
920 return x; 1127 return x;
921} 1128}
922 1129
923/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1130/* popcount64 is only available on 64 bit cpus as gcc builtin */
924/* so for this version we are lazy */ 1131/* so for this version we are lazy */
925ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1132ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
926ecb_function_ int 1133ecb_function_ ecb_const int
927ecb_popcount64 (uint64_t x) 1134ecb_popcount64 (uint64_t x)
928{ 1135{
929 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1136 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
930} 1137}
931 1138
932ecb_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);
933ecb_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);
934ecb_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);
935ecb_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);
936ecb_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);
937ecb_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);
938ecb_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);
939ecb_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);
940 1147
941ecb_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); }
942ecb_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); }
943ecb_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); }
944ecb_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); }
945ecb_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); }
946ecb_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); }
947ecb_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); }
948ecb_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); }
949 1156
950#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
951 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1161 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1162 #endif
952 #define ecb_bswap32(x) __builtin_bswap32 (x) 1163 #define ecb_bswap32(x) __builtin_bswap32 (x)
953 #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)))
954#else 1170#else
955 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1171 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
956 ecb_function_ uint16_t 1172 ecb_function_ ecb_const uint16_t
957 ecb_bswap16 (uint16_t x) 1173 ecb_bswap16 (uint16_t x)
958 { 1174 {
959 return ecb_rotl16 (x, 8); 1175 return ecb_rotl16 (x, 8);
960 } 1176 }
961 1177
962 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1178 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
963 ecb_function_ uint32_t 1179 ecb_function_ ecb_const uint32_t
964 ecb_bswap32 (uint32_t x) 1180 ecb_bswap32 (uint32_t x)
965 { 1181 {
966 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1182 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
967 } 1183 }
968 1184
969 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1185 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
970 ecb_function_ uint64_t 1186 ecb_function_ ecb_const uint64_t
971 ecb_bswap64 (uint64_t x) 1187 ecb_bswap64 (uint64_t x)
972 { 1188 {
973 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1189 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
974 } 1190 }
975#endif 1191#endif
976 1192
977#if ECB_GCC_VERSION(4,5) 1193#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
978 #define ecb_unreachable() __builtin_unreachable () 1194 #define ecb_unreachable() __builtin_unreachable ()
979#else 1195#else
980 /* 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 :/ */
981 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1197 ecb_inline ecb_noreturn void ecb_unreachable (void);
982 ecb_inline void ecb_unreachable (void) { } 1198 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
983#endif 1199#endif
984 1200
985/* try to tell the compiler that some condition is definitely true */ 1201/* try to tell the compiler that some condition is definitely true */
986#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1202#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
987 1203
988ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1204ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
989ecb_inline unsigned char 1205ecb_inline ecb_const uint32_t
990ecb_byteorder_helper (void) 1206ecb_byteorder_helper (void)
991{ 1207{
992 /* the union code still generates code under pressure in gcc, */ 1208 /* the union code still generates code under pressure in gcc, */
993 /* but less than using pointers, and always seems to */ 1209 /* but less than using pointers, and always seems to */
994 /* successfully return a constant. */ 1210 /* successfully return a constant. */
995 /* the reason why we have this horrible preprocessor mess */ 1211 /* the reason why we have this horrible preprocessor mess */
996 /* 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 */
997 /* or when using a recent enough gcc version (>= 4.6) */ 1213 /* or when using a recent enough gcc version (>= 4.6) */
998#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
999 return 0x44;
1000#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 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
1001 return 0x44; 1217 return 0x44332211;
1002#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
1003 return 0x11; 1221 return 0x11223344;
1004#else 1222#else
1005 union 1223 union
1006 { 1224 {
1225 uint8_t c[4];
1007 uint32_t i; 1226 uint32_t u;
1008 uint8_t c;
1009 } u = { 0x11223344 }; 1227 } u = { 0x11, 0x22, 0x33, 0x44 };
1010 return u.c; 1228 return u.u;
1011#endif 1229#endif
1012} 1230}
1013 1231
1014ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1232ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1015ecb_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; }
1016ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1234ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1017ecb_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; }
1018 1236
1019#if ECB_GCC_VERSION(3,0) || ECB_C99 1237#if ECB_GCC_VERSION(3,0) || ECB_C99
1020 #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))
1021#else 1239#else
1022 #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)))
1023#endif 1241#endif
1024 1242
1025#if __cplusplus 1243#if ECB_CPP
1026 template<typename T> 1244 template<typename T>
1027 static inline T ecb_div_rd (T val, T div) 1245 static inline T ecb_div_rd (T val, T div)
1028 { 1246 {
1029 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1247 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1030 } 1248 }
… …
1047 } 1265 }
1048#else 1266#else
1049 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1267 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1050#endif 1268#endif
1051 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
1052/*******************************************************************************/ 1366/*******************************************************************************/
1053/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1367/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1054 1368
1055/* basically, everything uses "ieee pure-endian" floating point numbers */ 1369/* basically, everything uses "ieee pure-endian" floating point numbers */
1056/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1370/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1057#if 0 \ 1371#if 0 \
1058 || __i386 || __i386__ \ 1372 || __i386 || __i386__ \
1059 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1373 || ECB_GCC_AMD64 \
1060 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1374 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1061 || defined __arm__ && defined __ARM_EABI__ \
1062 || defined __s390__ || defined __s390x__ \ 1375 || defined __s390__ || defined __s390x__ \
1063 || defined __mips__ \ 1376 || defined __mips__ \
1064 || defined __alpha__ \ 1377 || defined __alpha__ \
1065 || defined __hppa__ \ 1378 || defined __hppa__ \
1066 || defined __ia64__ \ 1379 || defined __ia64__ \
1067 || defined __m68k__ \ 1380 || defined __m68k__ \
1068 || defined __m88k__ \ 1381 || defined __m88k__ \
1069 || defined __sh__ \ 1382 || defined __sh__ \
1070 || 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__
1071 #define ECB_STDFP 1 1386 #define ECB_STDFP 1
1072 #include <string.h> /* for memcpy */ 1387 #include <string.h> /* for memcpy */
1073#else 1388#else
1074 #define ECB_STDFP 0 1389 #define ECB_STDFP 0
1075#endif 1390#endif
… …
1089 #define ECB_NAN NAN 1404 #define ECB_NAN NAN
1090 #else 1405 #else
1091 #define ECB_NAN ECB_INFINITY 1406 #define ECB_NAN ECB_INFINITY
1092 #endif 1407 #endif
1093 1408
1094 /* converts an ieee half/binary16 to a float */ 1409 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1095 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1410 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1096 ecb_function_ float 1411 #define ecb_frexpf(x,e) frexpf ((x), (e))
1097 ecb_binary16_to_float (uint16_t x) 1412 #else
1098 { 1413 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1099 int e = (x >> 10) & 0x1f; 1414 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1100 int m = x & 0x3ff; 1415 #endif
1101 float r;
1102
1103 if (!e ) r = ldexpf (m , -24);
1104 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1105 else if (m ) r = ECB_NAN;
1106 else r = ECB_INFINITY;
1107
1108 return x & 0x8000 ? -r : r;
1109 }
1110 1416
1111 /* convert a float to ieee single/binary32 */ 1417 /* convert a float to ieee single/binary32 */
1112 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);
1113 ecb_function_ uint32_t 1419 ecb_function_ ecb_const uint32_t
1114 ecb_float_to_binary32 (float x) 1420 ecb_float_to_binary32 (float x)
1115 { 1421 {
1116 uint32_t r; 1422 uint32_t r;
1117 1423
1118 #if ECB_STDFP 1424 #if ECB_STDFP
… …
1125 if (x == 0e0f ) return 0x00000000U; 1431 if (x == 0e0f ) return 0x00000000U;
1126 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1432 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1127 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1433 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1128 if (x != x ) return 0x7fbfffffU; 1434 if (x != x ) return 0x7fbfffffU;
1129 1435
1130 m = frexpf (x, &e) * 0x1000000U; 1436 m = ecb_frexpf (x, &e) * 0x1000000U;
1131 1437
1132 r = m & 0x80000000U; 1438 r = m & 0x80000000U;
1133 1439
1134 if (r) 1440 if (r)
1135 m = -m; 1441 m = -m;
… …
1147 1453
1148 return r; 1454 return r;
1149 } 1455 }
1150 1456
1151 /* converts an ieee single/binary32 to a float */ 1457 /* converts an ieee single/binary32 to a float */
1152 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);
1153 ecb_function_ float 1459 ecb_function_ ecb_const float
1154 ecb_binary32_to_float (uint32_t x) 1460 ecb_binary32_to_float (uint32_t x)
1155 { 1461 {
1156 float r; 1462 float r;
1157 1463
1158 #if ECB_STDFP 1464 #if ECB_STDFP
… …
1168 x |= 0x800000U; 1474 x |= 0x800000U;
1169 else 1475 else
1170 e = 1; 1476 e = 1;
1171 1477
1172 /* 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 */
1173 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1479 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1174 1480
1175 r = neg ? -r : r; 1481 r = neg ? -r : r;
1176 #endif 1482 #endif
1177 1483
1178 return r; 1484 return r;
1179 } 1485 }
1180 1486
1181 /* convert a double to ieee double/binary64 */ 1487 /* convert a double to ieee double/binary64 */
1182 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);
1183 ecb_function_ uint64_t 1489 ecb_function_ ecb_const uint64_t
1184 ecb_double_to_binary64 (double x) 1490 ecb_double_to_binary64 (double x)
1185 { 1491 {
1186 uint64_t r; 1492 uint64_t r;
1187 1493
1188 #if ECB_STDFP 1494 #if ECB_STDFP
… …
1217 1523
1218 return r; 1524 return r;
1219 } 1525 }
1220 1526
1221 /* converts an ieee double/binary64 to a double */ 1527 /* converts an ieee double/binary64 to a double */
1222 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);
1223 ecb_function_ double 1529 ecb_function_ ecb_const double
1224 ecb_binary64_to_double (uint64_t x) 1530 ecb_binary64_to_double (uint64_t x)
1225 { 1531 {
1226 double r; 1532 double r;
1227 1533
1228 #if ECB_STDFP 1534 #if ECB_STDFP
… …
1246 #endif 1552 #endif
1247 1553
1248 return r; 1554 return r;
1249 } 1555 }
1250 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
1251#endif 1573#endif
1252 1574
1253#endif 1575#endif
1254 1576
1255/* ECB.H END */ 1577/* ECB.H END */
1256 1578
1257#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1579#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1258/* 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
1259 * 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
1260 * 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
1261 * libev, in which cases the memory fences become nops. 1583 * libev, in which cases the memory fences become nops.
1262 * alternatively, you can remove this #error and link against libpthread, 1584 * alternatively, you can remove this #error and link against libpthread,
1263 * which will then provide the memory fences. 1585 * which will then provide the memory fences.
1264 */ 1586 */
1265# error "memory fences not defined for your architecture, please report" 1587# error "memory fences not defined for your architecture, please report"
… …
1269# define ECB_MEMORY_FENCE do { } while (0) 1591# define ECB_MEMORY_FENCE do { } while (0)
1270# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1592# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1271# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1593# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1272#endif 1594#endif
1273 1595
1274#define expect_false(cond) ecb_expect_false (cond)
1275#define expect_true(cond) ecb_expect_true (cond)
1276#define noinline ecb_noinline
1277
1278#define inline_size ecb_inline 1596#define inline_size ecb_inline
1279 1597
1280#if EV_FEATURE_CODE 1598#if EV_FEATURE_CODE
1281# define inline_speed ecb_inline 1599# define inline_speed ecb_inline
1282#else 1600#else
1283# define inline_speed static noinline 1601# define inline_speed ecb_noinline static
1284#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/*****************************************************************************/
1285 1669
1286#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1670#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1287 1671
1288#if EV_MINPRI == EV_MAXPRI 1672#if EV_MINPRI == EV_MAXPRI
1289# define ABSPRI(w) (((W)w), 0) 1673# define ABSPRI(w) (((W)w), 0)
1290#else 1674#else
1291# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1675# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1292#endif 1676#endif
1293 1677
1294#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1678#define EMPTY /* required for microsofts broken pseudo-c compiler */
1295#define EMPTY2(a,b) /* used to suppress some warnings */
1296 1679
1297typedef ev_watcher *W; 1680typedef ev_watcher *W;
1298typedef ev_watcher_list *WL; 1681typedef ev_watcher_list *WL;
1299typedef ev_watcher_time *WT; 1682typedef ev_watcher_time *WT;
1300 1683
… …
1325# include "ev_win32.c" 1708# include "ev_win32.c"
1326#endif 1709#endif
1327 1710
1328/*****************************************************************************/ 1711/*****************************************************************************/
1329 1712
1713#if EV_USE_LINUXAIO
1714# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1715#endif
1716
1330/* define a suitable floor function (only used by periodics atm) */ 1717/* define a suitable floor function (only used by periodics atm) */
1331 1718
1332#if EV_USE_FLOOR 1719#if EV_USE_FLOOR
1333# include <math.h> 1720# include <math.h>
1334# define ev_floor(v) floor (v) 1721# define ev_floor(v) floor (v)
1335#else 1722#else
1336 1723
1337#include <float.h> 1724#include <float.h>
1338 1725
1339/* 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
1340static ev_tstamp noinline 1728static ev_tstamp
1341ev_floor (ev_tstamp v) 1729ev_floor (ev_tstamp v)
1342{ 1730{
1343 /* the choice of shift factor is not terribly important */ 1731 /* the choice of shift factor is not terribly important */
1344#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1732#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1345 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1733 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1346#else 1734#else
1347 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1735 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1348#endif 1736#endif
1349 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
1350 /* argument too large for an unsigned long? */ 1746 /* argument too large for an unsigned long? then reduce it */
1351 if (expect_false (v >= shift)) 1747 if (ecb_expect_false (v >= shift))
1352 { 1748 {
1353 ev_tstamp f; 1749 ev_tstamp f;
1354 1750
1355 if (v == v - 1.) 1751 if (v == v - 1.)
1356 return v; /* very large number */ 1752 return v; /* very large numbers are assumed to be integer */
1357 1753
1358 f = shift * ev_floor (v * (1. / shift)); 1754 f = shift * ev_floor (v * (1. / shift));
1359 return f + ev_floor (v - f); 1755 return f + ev_floor (v - f);
1360 } 1756 }
1361 1757
1362 /* special treatment for negative args? */
1363 if (expect_false (v < 0.))
1364 {
1365 ev_tstamp f = -ev_floor (-v);
1366
1367 return f - (f == v ? 0 : 1);
1368 }
1369
1370 /* fits into an unsigned long */ 1758 /* fits into an unsigned long */
1371 return (unsigned long)v; 1759 return (unsigned long)v;
1372} 1760}
1373 1761
1374#endif 1762#endif
… …
1377 1765
1378#ifdef __linux 1766#ifdef __linux
1379# include <sys/utsname.h> 1767# include <sys/utsname.h>
1380#endif 1768#endif
1381 1769
1382static unsigned int noinline ecb_cold 1770ecb_noinline ecb_cold
1771static unsigned int
1383ev_linux_version (void) 1772ev_linux_version (void)
1384{ 1773{
1385#ifdef __linux 1774#ifdef __linux
1386 unsigned int v = 0; 1775 unsigned int v = 0;
1387 struct utsname buf; 1776 struct utsname buf;
… …
1416} 1805}
1417 1806
1418/*****************************************************************************/ 1807/*****************************************************************************/
1419 1808
1420#if EV_AVOID_STDIO 1809#if EV_AVOID_STDIO
1421static void noinline ecb_cold 1810ecb_noinline ecb_cold
1811static void
1422ev_printerr (const char *msg) 1812ev_printerr (const char *msg)
1423{ 1813{
1424 write (STDERR_FILENO, msg, strlen (msg)); 1814 write (STDERR_FILENO, msg, strlen (msg));
1425} 1815}
1426#endif 1816#endif
1427 1817
1428static void (*syserr_cb)(const char *msg) EV_THROW; 1818static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1429 1819
1430void ecb_cold 1820ecb_cold
1821void
1431ev_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
1432{ 1823{
1433 syserr_cb = cb; 1824 syserr_cb = cb;
1434} 1825}
1435 1826
1436static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1437ev_syserr (const char *msg) 1829ev_syserr (const char *msg)
1438{ 1830{
1439 if (!msg) 1831 if (!msg)
1440 msg = "(libev) system error"; 1832 msg = "(libev) system error";
1441 1833
… …
1454 abort (); 1846 abort ();
1455 } 1847 }
1456} 1848}
1457 1849
1458static void * 1850static void *
1459ev_realloc_emul (void *ptr, long size) EV_THROW 1851ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1460{ 1852{
1461 /* some systems, notably openbsd and darwin, fail to properly 1853 /* some systems, notably openbsd and darwin, fail to properly
1462 * 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
1463 * the single unix specification, so work around them here. 1855 * the single unix specification, so work around them here.
1464 * recently, also (at least) fedora and debian started breaking it, 1856 * recently, also (at least) fedora and debian started breaking it,
… …
1470 1862
1471 free (ptr); 1863 free (ptr);
1472 return 0; 1864 return 0;
1473} 1865}
1474 1866
1475static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1867static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1476 1868
1477void ecb_cold 1869ecb_cold
1870void
1478ev_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
1479{ 1872{
1480 alloc = cb; 1873 alloc = cb;
1481} 1874}
1482 1875
1483inline_speed void * 1876inline_speed void *
… …
1510typedef struct 1903typedef struct
1511{ 1904{
1512 WL head; 1905 WL head;
1513 unsigned char events; /* the events watched for */ 1906 unsigned char events; /* the events watched for */
1514 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) */
1515 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 */
1516 unsigned char unused; 1909 unsigned char eflags; /* flags field for use by backends */
1517#if EV_USE_EPOLL 1910#if EV_USE_EPOLL
1518 unsigned int egen; /* generation counter to counter epoll bugs */ 1911 unsigned int egen; /* generation counter to counter epoll bugs */
1519#endif 1912#endif
1520#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1913#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1521 SOCKET handle; 1914 SOCKET handle;
… …
1575 static struct ev_loop default_loop_struct; 1968 static struct ev_loop default_loop_struct;
1576 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 1969 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1577 1970
1578#else 1971#else
1579 1972
1580 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 */
1581 #define VAR(name,decl) static decl; 1974 #define VAR(name,decl) static decl;
1582 #include "ev_vars.h" 1975 #include "ev_vars.h"
1583 #undef VAR 1976 #undef VAR
1584 1977
1585 static int ev_default_loop_ptr; 1978 static int ev_default_loop_ptr;
1586 1979
1587#endif 1980#endif
1588 1981
1589#if EV_FEATURE_API 1982#if EV_FEATURE_API
1590# 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)
1591# 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)
1592# define EV_INVOKE_PENDING invoke_cb (EV_A) 1985# define EV_INVOKE_PENDING invoke_cb (EV_A)
1593#else 1986#else
1594# define EV_RELEASE_CB (void)0 1987# define EV_RELEASE_CB (void)0
1595# define EV_ACQUIRE_CB (void)0 1988# define EV_ACQUIRE_CB (void)0
1596# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1989# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1600 1993
1601/*****************************************************************************/ 1994/*****************************************************************************/
1602 1995
1603#ifndef EV_HAVE_EV_TIME 1996#ifndef EV_HAVE_EV_TIME
1604ev_tstamp 1997ev_tstamp
1605ev_time (void) EV_THROW 1998ev_time (void) EV_NOEXCEPT
1606{ 1999{
1607#if EV_USE_REALTIME 2000#if EV_USE_REALTIME
1608 if (expect_true (have_realtime)) 2001 if (ecb_expect_true (have_realtime))
1609 { 2002 {
1610 struct timespec ts; 2003 struct timespec ts;
1611 clock_gettime (CLOCK_REALTIME, &ts); 2004 clock_gettime (CLOCK_REALTIME, &ts);
1612 return ts.tv_sec + ts.tv_nsec * 1e-9; 2005 return EV_TS_GET (ts);
1613 } 2006 }
1614#endif 2007#endif
1615 2008
1616 struct timeval tv; 2009 struct timeval tv;
1617 gettimeofday (&tv, 0); 2010 gettimeofday (&tv, 0);
1618 return tv.tv_sec + tv.tv_usec * 1e-6; 2011 return EV_TV_GET (tv);
1619} 2012}
1620#endif 2013#endif
1621 2014
1622inline_size ev_tstamp 2015inline_size ev_tstamp
1623get_clock (void) 2016get_clock (void)
1624{ 2017{
1625#if EV_USE_MONOTONIC 2018#if EV_USE_MONOTONIC
1626 if (expect_true (have_monotonic)) 2019 if (ecb_expect_true (have_monotonic))
1627 { 2020 {
1628 struct timespec ts; 2021 struct timespec ts;
1629 clock_gettime (CLOCK_MONOTONIC, &ts); 2022 clock_gettime (CLOCK_MONOTONIC, &ts);
1630 return ts.tv_sec + ts.tv_nsec * 1e-9; 2023 return EV_TS_GET (ts);
1631 } 2024 }
1632#endif 2025#endif
1633 2026
1634 return ev_time (); 2027 return ev_time ();
1635} 2028}
1636 2029
1637#if EV_MULTIPLICITY 2030#if EV_MULTIPLICITY
1638ev_tstamp 2031ev_tstamp
1639ev_now (EV_P) EV_THROW 2032ev_now (EV_P) EV_NOEXCEPT
1640{ 2033{
1641 return ev_rt_now; 2034 return ev_rt_now;
1642} 2035}
1643#endif 2036#endif
1644 2037
1645void 2038void
1646ev_sleep (ev_tstamp delay) EV_THROW 2039ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1647{ 2040{
1648 if (delay > 0.) 2041 if (delay > EV_TS_CONST (0.))
1649 { 2042 {
1650#if EV_USE_NANOSLEEP 2043#if EV_USE_NANOSLEEP
1651 struct timespec ts; 2044 struct timespec ts;
1652 2045
1653 EV_TS_SET (ts, delay); 2046 EV_TS_SET (ts, delay);
1654 nanosleep (&ts, 0); 2047 nanosleep (&ts, 0);
1655#elif defined _WIN32 2048#elif defined _WIN32
2049 /* maybe this should round up, as ms is very low resolution */
2050 /* compared to select (µs) or nanosleep (ns) */
1656 Sleep ((unsigned long)(delay * 1e3)); 2051 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1657#else 2052#else
1658 struct timeval tv; 2053 struct timeval tv;
1659 2054
1660 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2055 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1661 /* something not guaranteed by newer posix versions, but guaranteed */ 2056 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1691 } 2086 }
1692 2087
1693 return ncur; 2088 return ncur;
1694} 2089}
1695 2090
1696static void * noinline ecb_cold 2091ecb_noinline ecb_cold
2092static void *
1697array_realloc (int elem, void *base, int *cur, int cnt) 2093array_realloc (int elem, void *base, int *cur, int cnt)
1698{ 2094{
1699 *cur = array_nextsize (elem, *cur, cnt); 2095 *cur = array_nextsize (elem, *cur, cnt);
1700 return ev_realloc (base, elem * *cur); 2096 return ev_realloc (base, elem * *cur);
1701} 2097}
1702 2098
2099#define array_needsize_noinit(base,offset,count)
2100
1703#define array_init_zero(base,count) \ 2101#define array_needsize_zerofill(base,offset,count) \
1704 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2102 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1705 2103
1706#define array_needsize(type,base,cur,cnt,init) \ 2104#define array_needsize(type,base,cur,cnt,init) \
1707 if (expect_false ((cnt) > (cur))) \ 2105 if (ecb_expect_false ((cnt) > (cur))) \
1708 { \ 2106 { \
1709 int ecb_unused ocur_ = (cur); \ 2107 ecb_unused int ocur_ = (cur); \
1710 (base) = (type *)array_realloc \ 2108 (base) = (type *)array_realloc \
1711 (sizeof (type), (base), &(cur), (cnt)); \ 2109 (sizeof (type), (base), &(cur), (cnt)); \
1712 init ((base) + (ocur_), (cur) - ocur_); \ 2110 init ((base), ocur_, ((cur) - ocur_)); \
1713 } 2111 }
1714 2112
1715#if 0 2113#if 0
1716#define array_slim(type,stem) \ 2114#define array_slim(type,stem) \
1717 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2115 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1726 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2124 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1727 2125
1728/*****************************************************************************/ 2126/*****************************************************************************/
1729 2127
1730/* dummy callback for pending events */ 2128/* dummy callback for pending events */
1731static void noinline 2129ecb_noinline
2130static void
1732pendingcb (EV_P_ ev_prepare *w, int revents) 2131pendingcb (EV_P_ ev_prepare *w, int revents)
1733{ 2132{
1734} 2133}
1735 2134
1736void noinline 2135ecb_noinline
2136void
1737ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2137ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1738{ 2138{
1739 W w_ = (W)w; 2139 W w_ = (W)w;
1740 int pri = ABSPRI (w_); 2140 int pri = ABSPRI (w_);
1741 2141
1742 if (expect_false (w_->pending)) 2142 if (ecb_expect_false (w_->pending))
1743 pendings [pri][w_->pending - 1].events |= revents; 2143 pendings [pri][w_->pending - 1].events |= revents;
1744 else 2144 else
1745 { 2145 {
1746 w_->pending = ++pendingcnt [pri]; 2146 w_->pending = ++pendingcnt [pri];
1747 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2147 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1748 pendings [pri][w_->pending - 1].w = w_; 2148 pendings [pri][w_->pending - 1].w = w_;
1749 pendings [pri][w_->pending - 1].events = revents; 2149 pendings [pri][w_->pending - 1].events = revents;
1750 } 2150 }
1751 2151
1752 pendingpri = NUMPRI - 1; 2152 pendingpri = NUMPRI - 1;
1753} 2153}
1754 2154
1755inline_speed void 2155inline_speed void
1756feed_reverse (EV_P_ W w) 2156feed_reverse (EV_P_ W w)
1757{ 2157{
1758 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2158 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1759 rfeeds [rfeedcnt++] = w; 2159 rfeeds [rfeedcnt++] = w;
1760} 2160}
1761 2161
1762inline_size void 2162inline_size void
1763feed_reverse_done (EV_P_ int revents) 2163feed_reverse_done (EV_P_ int revents)
… …
1798inline_speed void 2198inline_speed void
1799fd_event (EV_P_ int fd, int revents) 2199fd_event (EV_P_ int fd, int revents)
1800{ 2200{
1801 ANFD *anfd = anfds + fd; 2201 ANFD *anfd = anfds + fd;
1802 2202
1803 if (expect_true (!anfd->reify)) 2203 if (ecb_expect_true (!anfd->reify))
1804 fd_event_nocheck (EV_A_ fd, revents); 2204 fd_event_nocheck (EV_A_ fd, revents);
1805} 2205}
1806 2206
1807void 2207void
1808ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2208ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1809{ 2209{
1810 if (fd >= 0 && fd < anfdmax) 2210 if (fd >= 0 && fd < anfdmax)
1811 fd_event_nocheck (EV_A_ fd, revents); 2211 fd_event_nocheck (EV_A_ fd, revents);
1812} 2212}
1813 2213
… …
1850 ev_io *w; 2250 ev_io *w;
1851 2251
1852 unsigned char o_events = anfd->events; 2252 unsigned char o_events = anfd->events;
1853 unsigned char o_reify = anfd->reify; 2253 unsigned char o_reify = anfd->reify;
1854 2254
1855 anfd->reify = 0; 2255 anfd->reify = 0;
1856 2256
1857 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2257 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1858 { 2258 {
1859 anfd->events = 0; 2259 anfd->events = 0;
1860 2260
1861 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2261 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1862 anfd->events |= (unsigned char)w->events; 2262 anfd->events |= (unsigned char)w->events;
… …
1871 2271
1872 fdchangecnt = 0; 2272 fdchangecnt = 0;
1873} 2273}
1874 2274
1875/* something about the given fd changed */ 2275/* something about the given fd changed */
1876inline_size void 2276inline_size
2277void
1877fd_change (EV_P_ int fd, int flags) 2278fd_change (EV_P_ int fd, int flags)
1878{ 2279{
1879 unsigned char reify = anfds [fd].reify; 2280 unsigned char reify = anfds [fd].reify;
1880 anfds [fd].reify |= flags; 2281 anfds [fd].reify |= flags;
1881 2282
1882 if (expect_true (!reify)) 2283 if (ecb_expect_true (!reify))
1883 { 2284 {
1884 ++fdchangecnt; 2285 ++fdchangecnt;
1885 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2286 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1886 fdchanges [fdchangecnt - 1] = fd; 2287 fdchanges [fdchangecnt - 1] = fd;
1887 } 2288 }
1888} 2289}
1889 2290
1890/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2291/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1891inline_speed void ecb_cold 2292inline_speed ecb_cold void
1892fd_kill (EV_P_ int fd) 2293fd_kill (EV_P_ int fd)
1893{ 2294{
1894 ev_io *w; 2295 ev_io *w;
1895 2296
1896 while ((w = (ev_io *)anfds [fd].head)) 2297 while ((w = (ev_io *)anfds [fd].head))
… …
1899 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2300 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1900 } 2301 }
1901} 2302}
1902 2303
1903/* check whether the given fd is actually valid, for error recovery */ 2304/* check whether the given fd is actually valid, for error recovery */
1904inline_size int ecb_cold 2305inline_size ecb_cold int
1905fd_valid (int fd) 2306fd_valid (int fd)
1906{ 2307{
1907#ifdef _WIN32 2308#ifdef _WIN32
1908 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2309 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1909#else 2310#else
1910 return fcntl (fd, F_GETFD) != -1; 2311 return fcntl (fd, F_GETFD) != -1;
1911#endif 2312#endif
1912} 2313}
1913 2314
1914/* called on EBADF to verify fds */ 2315/* called on EBADF to verify fds */
1915static void noinline ecb_cold 2316ecb_noinline ecb_cold
2317static void
1916fd_ebadf (EV_P) 2318fd_ebadf (EV_P)
1917{ 2319{
1918 int fd; 2320 int fd;
1919 2321
1920 for (fd = 0; fd < anfdmax; ++fd) 2322 for (fd = 0; fd < anfdmax; ++fd)
… …
1922 if (!fd_valid (fd) && errno == EBADF) 2324 if (!fd_valid (fd) && errno == EBADF)
1923 fd_kill (EV_A_ fd); 2325 fd_kill (EV_A_ fd);
1924} 2326}
1925 2327
1926/* called on ENOMEM in select/poll to kill some fds and retry */ 2328/* called on ENOMEM in select/poll to kill some fds and retry */
1927static void noinline ecb_cold 2329ecb_noinline ecb_cold
2330static void
1928fd_enomem (EV_P) 2331fd_enomem (EV_P)
1929{ 2332{
1930 int fd; 2333 int fd;
1931 2334
1932 for (fd = anfdmax; fd--; ) 2335 for (fd = anfdmax; fd--; )
… …
1936 break; 2339 break;
1937 } 2340 }
1938} 2341}
1939 2342
1940/* usually called after fork if backend needs to re-arm all fds from scratch */ 2343/* usually called after fork if backend needs to re-arm all fds from scratch */
1941static void noinline 2344ecb_noinline
2345static void
1942fd_rearm_all (EV_P) 2346fd_rearm_all (EV_P)
1943{ 2347{
1944 int fd; 2348 int fd;
1945 2349
1946 for (fd = 0; fd < anfdmax; ++fd) 2350 for (fd = 0; fd < anfdmax; ++fd)
… …
1999 ev_tstamp minat; 2403 ev_tstamp minat;
2000 ANHE *minpos; 2404 ANHE *minpos;
2001 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2405 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2002 2406
2003 /* find minimum child */ 2407 /* find minimum child */
2004 if (expect_true (pos + DHEAP - 1 < E)) 2408 if (ecb_expect_true (pos + DHEAP - 1 < E))
2005 { 2409 {
2006 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2410 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2007 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2411 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2008 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2412 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2009 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2413 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2010 } 2414 }
2011 else if (pos < E) 2415 else if (pos < E)
2012 { 2416 {
2013 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2417 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2014 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2418 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2015 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2419 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2016 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2420 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2017 } 2421 }
2018 else 2422 else
2019 break; 2423 break;
2020 2424
2021 if (ANHE_at (he) <= minat) 2425 if (ANHE_at (he) <= minat)
… …
2029 2433
2030 heap [k] = he; 2434 heap [k] = he;
2031 ev_active (ANHE_w (he)) = k; 2435 ev_active (ANHE_w (he)) = k;
2032} 2436}
2033 2437
2034#else /* 4HEAP */ 2438#else /* not 4HEAP */
2035 2439
2036#define HEAP0 1 2440#define HEAP0 1
2037#define HPARENT(k) ((k) >> 1) 2441#define HPARENT(k) ((k) >> 1)
2038#define UPHEAP_DONE(p,k) (!(p)) 2442#define UPHEAP_DONE(p,k) (!(p))
2039 2443
… …
2127 2531
2128/*****************************************************************************/ 2532/*****************************************************************************/
2129 2533
2130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2534#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2131 2535
2132static void noinline ecb_cold 2536ecb_noinline ecb_cold
2537static void
2133evpipe_init (EV_P) 2538evpipe_init (EV_P)
2134{ 2539{
2135 if (!ev_is_active (&pipe_w)) 2540 if (!ev_is_active (&pipe_w))
2136 { 2541 {
2137 int fds [2]; 2542 int fds [2];
… …
2177inline_speed void 2582inline_speed void
2178evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2583evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2179{ 2584{
2180 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2585 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2181 2586
2182 if (expect_true (*flag)) 2587 if (ecb_expect_true (*flag))
2183 return; 2588 return;
2184 2589
2185 *flag = 1; 2590 *flag = 1;
2186 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2591 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2187 2592
… …
2208#endif 2613#endif
2209 { 2614 {
2210#ifdef _WIN32 2615#ifdef _WIN32
2211 WSABUF buf; 2616 WSABUF buf;
2212 DWORD sent; 2617 DWORD sent;
2213 buf.buf = &buf; 2618 buf.buf = (char *)&buf;
2214 buf.len = 1; 2619 buf.len = 1;
2215 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2620 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2216#else 2621#else
2217 write (evpipe [1], &(evpipe [1]), 1); 2622 write (evpipe [1], &(evpipe [1]), 1);
2218#endif 2623#endif
… …
2264 sig_pending = 0; 2669 sig_pending = 0;
2265 2670
2266 ECB_MEMORY_FENCE; 2671 ECB_MEMORY_FENCE;
2267 2672
2268 for (i = EV_NSIG - 1; i--; ) 2673 for (i = EV_NSIG - 1; i--; )
2269 if (expect_false (signals [i].pending)) 2674 if (ecb_expect_false (signals [i].pending))
2270 ev_feed_signal_event (EV_A_ i + 1); 2675 ev_feed_signal_event (EV_A_ i + 1);
2271 } 2676 }
2272#endif 2677#endif
2273 2678
2274#if EV_ASYNC_ENABLE 2679#if EV_ASYNC_ENABLE
… …
2290} 2695}
2291 2696
2292/*****************************************************************************/ 2697/*****************************************************************************/
2293 2698
2294void 2699void
2295ev_feed_signal (int signum) EV_THROW 2700ev_feed_signal (int signum) EV_NOEXCEPT
2296{ 2701{
2297#if EV_MULTIPLICITY 2702#if EV_MULTIPLICITY
2298 EV_P; 2703 EV_P;
2299 ECB_MEMORY_FENCE_ACQUIRE; 2704 ECB_MEMORY_FENCE_ACQUIRE;
2300 EV_A = signals [signum - 1].loop; 2705 EV_A = signals [signum - 1].loop;
… …
2315#endif 2720#endif
2316 2721
2317 ev_feed_signal (signum); 2722 ev_feed_signal (signum);
2318} 2723}
2319 2724
2320void noinline 2725ecb_noinline
2726void
2321ev_feed_signal_event (EV_P_ int signum) EV_THROW 2727ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2322{ 2728{
2323 WL w; 2729 WL w;
2324 2730
2325 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2731 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2326 return; 2732 return;
2327 2733
2328 --signum; 2734 --signum;
2329 2735
2330#if EV_MULTIPLICITY 2736#if EV_MULTIPLICITY
2331 /* it is permissible to try to feed a signal to the wrong loop */ 2737 /* it is permissible to try to feed a signal to the wrong loop */
2332 /* or, likely more useful, feeding a signal nobody is waiting for */ 2738 /* or, likely more useful, feeding a signal nobody is waiting for */
2333 2739
2334 if (expect_false (signals [signum].loop != EV_A)) 2740 if (ecb_expect_false (signals [signum].loop != EV_A))
2335 return; 2741 return;
2336#endif 2742#endif
2337 2743
2338 signals [signum].pending = 0; 2744 signals [signum].pending = 0;
2339 ECB_MEMORY_FENCE_RELEASE; 2745 ECB_MEMORY_FENCE_RELEASE;
… …
2435# include "ev_kqueue.c" 2841# include "ev_kqueue.c"
2436#endif 2842#endif
2437#if EV_USE_EPOLL 2843#if EV_USE_EPOLL
2438# include "ev_epoll.c" 2844# include "ev_epoll.c"
2439#endif 2845#endif
2846#if EV_USE_LINUXAIO
2847# include "ev_linuxaio.c"
2848#endif
2849#if EV_USE_IOURING
2850# include "ev_iouring.c"
2851#endif
2440#if EV_USE_POLL 2852#if EV_USE_POLL
2441# include "ev_poll.c" 2853# include "ev_poll.c"
2442#endif 2854#endif
2443#if EV_USE_SELECT 2855#if EV_USE_SELECT
2444# include "ev_select.c" 2856# include "ev_select.c"
2445#endif 2857#endif
2446 2858
2447int ecb_cold 2859ecb_cold int
2448ev_version_major (void) EV_THROW 2860ev_version_major (void) EV_NOEXCEPT
2449{ 2861{
2450 return EV_VERSION_MAJOR; 2862 return EV_VERSION_MAJOR;
2451} 2863}
2452 2864
2453int ecb_cold 2865ecb_cold int
2454ev_version_minor (void) EV_THROW 2866ev_version_minor (void) EV_NOEXCEPT
2455{ 2867{
2456 return EV_VERSION_MINOR; 2868 return EV_VERSION_MINOR;
2457} 2869}
2458 2870
2459/* return true if we are running with elevated privileges and should ignore env variables */ 2871/* return true if we are running with elevated privileges and should ignore env variables */
2460int inline_size ecb_cold 2872inline_size ecb_cold int
2461enable_secure (void) 2873enable_secure (void)
2462{ 2874{
2463#ifdef _WIN32 2875#ifdef _WIN32
2464 return 0; 2876 return 0;
2465#else 2877#else
2466 return getuid () != geteuid () 2878 return getuid () != geteuid ()
2467 || getgid () != getegid (); 2879 || getgid () != getegid ();
2468#endif 2880#endif
2469} 2881}
2470 2882
2471unsigned int ecb_cold 2883ecb_cold
2884unsigned int
2472ev_supported_backends (void) EV_THROW 2885ev_supported_backends (void) EV_NOEXCEPT
2473{ 2886{
2474 unsigned int flags = 0; 2887 unsigned int flags = 0;
2475 2888
2476 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2889 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2477 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2890 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2478 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2891 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2892 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2893 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2479 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2894 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2480 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2895 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2481 2896
2482 return flags; 2897 return flags;
2483} 2898}
2484 2899
2485unsigned int ecb_cold 2900ecb_cold
2901unsigned int
2486ev_recommended_backends (void) EV_THROW 2902ev_recommended_backends (void) EV_NOEXCEPT
2487{ 2903{
2488 unsigned int flags = ev_supported_backends (); 2904 unsigned int flags = ev_supported_backends ();
2489 2905
2490#ifndef __NetBSD__ 2906#ifndef __NetBSD__
2491 /* kqueue is borked on everything but netbsd apparently */ 2907 /* kqueue is borked on everything but netbsd apparently */
… …
2499#endif 2915#endif
2500#ifdef __FreeBSD__ 2916#ifdef __FreeBSD__
2501 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2917 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2502#endif 2918#endif
2503 2919
2920 /* TODO: linuxaio is very experimental */
2921#if !EV_RECOMMEND_LINUXAIO
2922 flags &= ~EVBACKEND_LINUXAIO;
2923#endif
2924 /* TODO: linuxaio is super experimental */
2925#if !EV_RECOMMEND_IOURING
2926 flags &= ~EVBACKEND_IOURING;
2927#endif
2928
2504 return flags; 2929 return flags;
2505} 2930}
2506 2931
2507unsigned int ecb_cold 2932ecb_cold
2933unsigned int
2508ev_embeddable_backends (void) EV_THROW 2934ev_embeddable_backends (void) EV_NOEXCEPT
2509{ 2935{
2510 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2936 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2511 2937
2512 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2938 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2513 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2939 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2514 flags &= ~EVBACKEND_EPOLL; 2940 flags &= ~EVBACKEND_EPOLL;
2515 2941
2942 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2943
2944 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2945 * because our backend_fd is the epoll fd we need as fallback.
2946 * if the kernel ever is fixed, this might change...
2947 */
2948
2516 return flags; 2949 return flags;
2517} 2950}
2518 2951
2519unsigned int 2952unsigned int
2520ev_backend (EV_P) EV_THROW 2953ev_backend (EV_P) EV_NOEXCEPT
2521{ 2954{
2522 return backend; 2955 return backend;
2523} 2956}
2524 2957
2525#if EV_FEATURE_API 2958#if EV_FEATURE_API
2526unsigned int 2959unsigned int
2527ev_iteration (EV_P) EV_THROW 2960ev_iteration (EV_P) EV_NOEXCEPT
2528{ 2961{
2529 return loop_count; 2962 return loop_count;
2530} 2963}
2531 2964
2532unsigned int 2965unsigned int
2533ev_depth (EV_P) EV_THROW 2966ev_depth (EV_P) EV_NOEXCEPT
2534{ 2967{
2535 return loop_depth; 2968 return loop_depth;
2536} 2969}
2537 2970
2538void 2971void
2539ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2972ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2540{ 2973{
2541 io_blocktime = interval; 2974 io_blocktime = interval;
2542} 2975}
2543 2976
2544void 2977void
2545ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2978ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2546{ 2979{
2547 timeout_blocktime = interval; 2980 timeout_blocktime = interval;
2548} 2981}
2549 2982
2550void 2983void
2551ev_set_userdata (EV_P_ void *data) EV_THROW 2984ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2552{ 2985{
2553 userdata = data; 2986 userdata = data;
2554} 2987}
2555 2988
2556void * 2989void *
2557ev_userdata (EV_P) EV_THROW 2990ev_userdata (EV_P) EV_NOEXCEPT
2558{ 2991{
2559 return userdata; 2992 return userdata;
2560} 2993}
2561 2994
2562void 2995void
2563ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2996ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2564{ 2997{
2565 invoke_cb = invoke_pending_cb; 2998 invoke_cb = invoke_pending_cb;
2566} 2999}
2567 3000
2568void 3001void
2569ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 3002ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2570{ 3003{
2571 release_cb = release; 3004 release_cb = release;
2572 acquire_cb = acquire; 3005 acquire_cb = acquire;
2573} 3006}
2574#endif 3007#endif
2575 3008
2576/* initialise a loop structure, must be zero-initialised */ 3009/* initialise a loop structure, must be zero-initialised */
2577static void noinline ecb_cold 3010ecb_noinline ecb_cold
3011static void
2578loop_init (EV_P_ unsigned int flags) EV_THROW 3012loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2579{ 3013{
2580 if (!backend) 3014 if (!backend)
2581 { 3015 {
2582 origflags = flags; 3016 origflags = flags;
2583 3017
… …
2641 3075
2642 if (!(flags & EVBACKEND_MASK)) 3076 if (!(flags & EVBACKEND_MASK))
2643 flags |= ev_recommended_backends (); 3077 flags |= ev_recommended_backends ();
2644 3078
2645#if EV_USE_IOCP 3079#if EV_USE_IOCP
2646 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3080 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2647#endif 3081#endif
2648#if EV_USE_PORT 3082#if EV_USE_PORT
2649 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3083 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2650#endif 3084#endif
2651#if EV_USE_KQUEUE 3085#if EV_USE_KQUEUE
2652 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3086 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3087#endif
3088#if EV_USE_IOURING
3089 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3090#endif
3091#if EV_USE_LINUXAIO
3092 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2653#endif 3093#endif
2654#if EV_USE_EPOLL 3094#if EV_USE_EPOLL
2655 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3095 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2656#endif 3096#endif
2657#if EV_USE_POLL 3097#if EV_USE_POLL
2658 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3098 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2659#endif 3099#endif
2660#if EV_USE_SELECT 3100#if EV_USE_SELECT
2661 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3101 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2662#endif 3102#endif
2663 3103
2664 ev_prepare_init (&pending_w, pendingcb); 3104 ev_prepare_init (&pending_w, pendingcb);
2665 3105
2666#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3106#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2669#endif 3109#endif
2670 } 3110 }
2671} 3111}
2672 3112
2673/* free up a loop structure */ 3113/* free up a loop structure */
2674void ecb_cold 3114ecb_cold
3115void
2675ev_loop_destroy (EV_P) 3116ev_loop_destroy (EV_P)
2676{ 3117{
2677 int i; 3118 int i;
2678 3119
2679#if EV_MULTIPLICITY 3120#if EV_MULTIPLICITY
… …
2682 return; 3123 return;
2683#endif 3124#endif
2684 3125
2685#if EV_CLEANUP_ENABLE 3126#if EV_CLEANUP_ENABLE
2686 /* queue cleanup watchers (and execute them) */ 3127 /* queue cleanup watchers (and execute them) */
2687 if (expect_false (cleanupcnt)) 3128 if (ecb_expect_false (cleanupcnt))
2688 { 3129 {
2689 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3130 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2690 EV_INVOKE_PENDING; 3131 EV_INVOKE_PENDING;
2691 } 3132 }
2692#endif 3133#endif
… …
2720 3161
2721 if (backend_fd >= 0) 3162 if (backend_fd >= 0)
2722 close (backend_fd); 3163 close (backend_fd);
2723 3164
2724#if EV_USE_IOCP 3165#if EV_USE_IOCP
2725 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3166 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2726#endif 3167#endif
2727#if EV_USE_PORT 3168#if EV_USE_PORT
2728 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3169 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2729#endif 3170#endif
2730#if EV_USE_KQUEUE 3171#if EV_USE_KQUEUE
2731 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3172 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3173#endif
3174#if EV_USE_IOURING
3175 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3176#endif
3177#if EV_USE_LINUXAIO
3178 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2732#endif 3179#endif
2733#if EV_USE_EPOLL 3180#if EV_USE_EPOLL
2734 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3181 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2735#endif 3182#endif
2736#if EV_USE_POLL 3183#if EV_USE_POLL
2737 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3184 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2738#endif 3185#endif
2739#if EV_USE_SELECT 3186#if EV_USE_SELECT
2740 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3187 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2741#endif 3188#endif
2742 3189
2743 for (i = NUMPRI; i--; ) 3190 for (i = NUMPRI; i--; )
2744 { 3191 {
2745 array_free (pending, [i]); 3192 array_free (pending, [i]);
… …
2787 3234
2788inline_size void 3235inline_size void
2789loop_fork (EV_P) 3236loop_fork (EV_P)
2790{ 3237{
2791#if EV_USE_PORT 3238#if EV_USE_PORT
2792 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3239 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2793#endif 3240#endif
2794#if EV_USE_KQUEUE 3241#if EV_USE_KQUEUE
2795 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3242 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3243#endif
3244#if EV_USE_IOURING
3245 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3246#endif
3247#if EV_USE_LINUXAIO
3248 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2796#endif 3249#endif
2797#if EV_USE_EPOLL 3250#if EV_USE_EPOLL
2798 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3251 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2799#endif 3252#endif
2800#if EV_USE_INOTIFY 3253#if EV_USE_INOTIFY
2801 infy_fork (EV_A); 3254 infy_fork (EV_A);
2802#endif 3255#endif
2803 3256
2804#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3257#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2805 if (ev_is_active (&pipe_w)) 3258 if (ev_is_active (&pipe_w) && postfork != 2)
2806 { 3259 {
2807 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3260 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2808 3261
2809 ev_ref (EV_A); 3262 ev_ref (EV_A);
2810 ev_io_stop (EV_A_ &pipe_w); 3263 ev_io_stop (EV_A_ &pipe_w);
… …
2821 postfork = 0; 3274 postfork = 0;
2822} 3275}
2823 3276
2824#if EV_MULTIPLICITY 3277#if EV_MULTIPLICITY
2825 3278
3279ecb_cold
2826struct ev_loop * ecb_cold 3280struct ev_loop *
2827ev_loop_new (unsigned int flags) EV_THROW 3281ev_loop_new (unsigned int flags) EV_NOEXCEPT
2828{ 3282{
2829 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3283 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2830 3284
2831 memset (EV_A, 0, sizeof (struct ev_loop)); 3285 memset (EV_A, 0, sizeof (struct ev_loop));
2832 loop_init (EV_A_ flags); 3286 loop_init (EV_A_ flags);
… …
2839} 3293}
2840 3294
2841#endif /* multiplicity */ 3295#endif /* multiplicity */
2842 3296
2843#if EV_VERIFY 3297#if EV_VERIFY
2844static void noinline ecb_cold 3298ecb_noinline ecb_cold
3299static void
2845verify_watcher (EV_P_ W w) 3300verify_watcher (EV_P_ W w)
2846{ 3301{
2847 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3302 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2848 3303
2849 if (w->pending) 3304 if (w->pending)
2850 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3305 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2851} 3306}
2852 3307
2853static void noinline ecb_cold 3308ecb_noinline ecb_cold
3309static void
2854verify_heap (EV_P_ ANHE *heap, int N) 3310verify_heap (EV_P_ ANHE *heap, int N)
2855{ 3311{
2856 int i; 3312 int i;
2857 3313
2858 for (i = HEAP0; i < N + HEAP0; ++i) 3314 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2863 3319
2864 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3320 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2865 } 3321 }
2866} 3322}
2867 3323
2868static void noinline ecb_cold 3324ecb_noinline ecb_cold
3325static void
2869array_verify (EV_P_ W *ws, int cnt) 3326array_verify (EV_P_ W *ws, int cnt)
2870{ 3327{
2871 while (cnt--) 3328 while (cnt--)
2872 { 3329 {
2873 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3330 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2876} 3333}
2877#endif 3334#endif
2878 3335
2879#if EV_FEATURE_API 3336#if EV_FEATURE_API
2880void ecb_cold 3337void ecb_cold
2881ev_verify (EV_P) EV_THROW 3338ev_verify (EV_P) EV_NOEXCEPT
2882{ 3339{
2883#if EV_VERIFY 3340#if EV_VERIFY
2884 int i; 3341 int i;
2885 WL w, w2; 3342 WL w, w2;
2886 3343
… …
2962#endif 3419#endif
2963} 3420}
2964#endif 3421#endif
2965 3422
2966#if EV_MULTIPLICITY 3423#if EV_MULTIPLICITY
3424ecb_cold
2967struct ev_loop * ecb_cold 3425struct ev_loop *
2968#else 3426#else
2969int 3427int
2970#endif 3428#endif
2971ev_default_loop (unsigned int flags) EV_THROW 3429ev_default_loop (unsigned int flags) EV_NOEXCEPT
2972{ 3430{
2973 if (!ev_default_loop_ptr) 3431 if (!ev_default_loop_ptr)
2974 { 3432 {
2975#if EV_MULTIPLICITY 3433#if EV_MULTIPLICITY
2976 EV_P = ev_default_loop_ptr = &default_loop_struct; 3434 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2995 3453
2996 return ev_default_loop_ptr; 3454 return ev_default_loop_ptr;
2997} 3455}
2998 3456
2999void 3457void
3000ev_loop_fork (EV_P) EV_THROW 3458ev_loop_fork (EV_P) EV_NOEXCEPT
3001{ 3459{
3002 postfork = 1; 3460 postfork = 1;
3003} 3461}
3004 3462
3005/*****************************************************************************/ 3463/*****************************************************************************/
… …
3009{ 3467{
3010 EV_CB_INVOKE ((W)w, revents); 3468 EV_CB_INVOKE ((W)w, revents);
3011} 3469}
3012 3470
3013unsigned int 3471unsigned int
3014ev_pending_count (EV_P) EV_THROW 3472ev_pending_count (EV_P) EV_NOEXCEPT
3015{ 3473{
3016 int pri; 3474 int pri;
3017 unsigned int count = 0; 3475 unsigned int count = 0;
3018 3476
3019 for (pri = NUMPRI; pri--; ) 3477 for (pri = NUMPRI; pri--; )
3020 count += pendingcnt [pri]; 3478 count += pendingcnt [pri];
3021 3479
3022 return count; 3480 return count;
3023} 3481}
3024 3482
3025void noinline 3483ecb_noinline
3484void
3026ev_invoke_pending (EV_P) 3485ev_invoke_pending (EV_P)
3027{ 3486{
3028 pendingpri = NUMPRI; 3487 pendingpri = NUMPRI;
3029 3488
3030 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3489 do
3031 { 3490 {
3032 --pendingpri; 3491 --pendingpri;
3033 3492
3493 /* pendingpri possibly gets modified in the inner loop */
3034 while (pendingcnt [pendingpri]) 3494 while (pendingcnt [pendingpri])
3035 { 3495 {
3036 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3496 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3037 3497
3038 p->w->pending = 0; 3498 p->w->pending = 0;
3039 EV_CB_INVOKE (p->w, p->events); 3499 EV_CB_INVOKE (p->w, p->events);
3040 EV_FREQUENT_CHECK; 3500 EV_FREQUENT_CHECK;
3041 } 3501 }
3042 } 3502 }
3503 while (pendingpri);
3043} 3504}
3044 3505
3045#if EV_IDLE_ENABLE 3506#if EV_IDLE_ENABLE
3046/* make idle watchers pending. this handles the "call-idle */ 3507/* make idle watchers pending. this handles the "call-idle */
3047/* only when higher priorities are idle" logic */ 3508/* only when higher priorities are idle" logic */
3048inline_size void 3509inline_size void
3049idle_reify (EV_P) 3510idle_reify (EV_P)
3050{ 3511{
3051 if (expect_false (idleall)) 3512 if (ecb_expect_false (idleall))
3052 { 3513 {
3053 int pri; 3514 int pri;
3054 3515
3055 for (pri = NUMPRI; pri--; ) 3516 for (pri = NUMPRI; pri--; )
3056 { 3517 {
… …
3086 { 3547 {
3087 ev_at (w) += w->repeat; 3548 ev_at (w) += w->repeat;
3088 if (ev_at (w) < mn_now) 3549 if (ev_at (w) < mn_now)
3089 ev_at (w) = mn_now; 3550 ev_at (w) = mn_now;
3090 3551
3091 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3552 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3092 3553
3093 ANHE_at_cache (timers [HEAP0]); 3554 ANHE_at_cache (timers [HEAP0]);
3094 downheap (timers, timercnt, HEAP0); 3555 downheap (timers, timercnt, HEAP0);
3095 } 3556 }
3096 else 3557 else
… …
3105 } 3566 }
3106} 3567}
3107 3568
3108#if EV_PERIODIC_ENABLE 3569#if EV_PERIODIC_ENABLE
3109 3570
3110static void noinline 3571ecb_noinline
3572static void
3111periodic_recalc (EV_P_ ev_periodic *w) 3573periodic_recalc (EV_P_ ev_periodic *w)
3112{ 3574{
3113 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3575 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3114 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3576 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3115 3577
… …
3117 while (at <= ev_rt_now) 3579 while (at <= ev_rt_now)
3118 { 3580 {
3119 ev_tstamp nat = at + w->interval; 3581 ev_tstamp nat = at + w->interval;
3120 3582
3121 /* when resolution fails us, we use ev_rt_now */ 3583 /* when resolution fails us, we use ev_rt_now */
3122 if (expect_false (nat == at)) 3584 if (ecb_expect_false (nat == at))
3123 { 3585 {
3124 at = ev_rt_now; 3586 at = ev_rt_now;
3125 break; 3587 break;
3126 } 3588 }
3127 3589
… …
3173 } 3635 }
3174} 3636}
3175 3637
3176/* simply recalculate all periodics */ 3638/* simply recalculate all periodics */
3177/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3639/* TODO: maybe ensure that at least one event happens when jumping forward? */
3178static void noinline ecb_cold 3640ecb_noinline ecb_cold
3641static void
3179periodics_reschedule (EV_P) 3642periodics_reschedule (EV_P)
3180{ 3643{
3181 int i; 3644 int i;
3182 3645
3183 /* adjust periodics after time jump */ 3646 /* adjust periodics after time jump */
… …
3196 reheap (periodics, periodiccnt); 3659 reheap (periodics, periodiccnt);
3197} 3660}
3198#endif 3661#endif
3199 3662
3200/* adjust all timers by a given offset */ 3663/* adjust all timers by a given offset */
3201static void noinline ecb_cold 3664ecb_noinline ecb_cold
3665static void
3202timers_reschedule (EV_P_ ev_tstamp adjust) 3666timers_reschedule (EV_P_ ev_tstamp adjust)
3203{ 3667{
3204 int i; 3668 int i;
3205 3669
3206 for (i = 0; i < timercnt; ++i) 3670 for (i = 0; i < timercnt; ++i)
… …
3215/* also detect if there was a timejump, and act accordingly */ 3679/* also detect if there was a timejump, and act accordingly */
3216inline_speed void 3680inline_speed void
3217time_update (EV_P_ ev_tstamp max_block) 3681time_update (EV_P_ ev_tstamp max_block)
3218{ 3682{
3219#if EV_USE_MONOTONIC 3683#if EV_USE_MONOTONIC
3220 if (expect_true (have_monotonic)) 3684 if (ecb_expect_true (have_monotonic))
3221 { 3685 {
3222 int i; 3686 int i;
3223 ev_tstamp odiff = rtmn_diff; 3687 ev_tstamp odiff = rtmn_diff;
3224 3688
3225 mn_now = get_clock (); 3689 mn_now = get_clock ();
3226 3690
3227 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3691 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3228 /* interpolate in the meantime */ 3692 /* interpolate in the meantime */
3229 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3693 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3230 { 3694 {
3231 ev_rt_now = rtmn_diff + mn_now; 3695 ev_rt_now = rtmn_diff + mn_now;
3232 return; 3696 return;
3233 } 3697 }
3234 3698
… …
3248 ev_tstamp diff; 3712 ev_tstamp diff;
3249 rtmn_diff = ev_rt_now - mn_now; 3713 rtmn_diff = ev_rt_now - mn_now;
3250 3714
3251 diff = odiff - rtmn_diff; 3715 diff = odiff - rtmn_diff;
3252 3716
3253 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3717 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3254 return; /* all is well */ 3718 return; /* all is well */
3255 3719
3256 ev_rt_now = ev_time (); 3720 ev_rt_now = ev_time ();
3257 mn_now = get_clock (); 3721 mn_now = get_clock ();
3258 now_floor = mn_now; 3722 now_floor = mn_now;
… …
3267 else 3731 else
3268#endif 3732#endif
3269 { 3733 {
3270 ev_rt_now = ev_time (); 3734 ev_rt_now = ev_time ();
3271 3735
3272 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3736 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3273 { 3737 {
3274 /* adjust timers. this is easy, as the offset is the same for all of them */ 3738 /* adjust timers. this is easy, as the offset is the same for all of them */
3275 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3739 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3276#if EV_PERIODIC_ENABLE 3740#if EV_PERIODIC_ENABLE
3277 periodics_reschedule (EV_A); 3741 periodics_reschedule (EV_A);
… …
3300#if EV_VERIFY >= 2 3764#if EV_VERIFY >= 2
3301 ev_verify (EV_A); 3765 ev_verify (EV_A);
3302#endif 3766#endif
3303 3767
3304#ifndef _WIN32 3768#ifndef _WIN32
3305 if (expect_false (curpid)) /* penalise the forking check even more */ 3769 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3306 if (expect_false (getpid () != curpid)) 3770 if (ecb_expect_false (getpid () != curpid))
3307 { 3771 {
3308 curpid = getpid (); 3772 curpid = getpid ();
3309 postfork = 1; 3773 postfork = 1;
3310 } 3774 }
3311#endif 3775#endif
3312 3776
3313#if EV_FORK_ENABLE 3777#if EV_FORK_ENABLE
3314 /* we might have forked, so queue fork handlers */ 3778 /* we might have forked, so queue fork handlers */
3315 if (expect_false (postfork)) 3779 if (ecb_expect_false (postfork))
3316 if (forkcnt) 3780 if (forkcnt)
3317 { 3781 {
3318 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3782 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3319 EV_INVOKE_PENDING; 3783 EV_INVOKE_PENDING;
3320 } 3784 }
3321#endif 3785#endif
3322 3786
3323#if EV_PREPARE_ENABLE 3787#if EV_PREPARE_ENABLE
3324 /* queue prepare watchers (and execute them) */ 3788 /* queue prepare watchers (and execute them) */
3325 if (expect_false (preparecnt)) 3789 if (ecb_expect_false (preparecnt))
3326 { 3790 {
3327 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3791 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3328 EV_INVOKE_PENDING; 3792 EV_INVOKE_PENDING;
3329 } 3793 }
3330#endif 3794#endif
3331 3795
3332 if (expect_false (loop_done)) 3796 if (ecb_expect_false (loop_done))
3333 break; 3797 break;
3334 3798
3335 /* we might have forked, so reify kernel state if necessary */ 3799 /* we might have forked, so reify kernel state if necessary */
3336 if (expect_false (postfork)) 3800 if (ecb_expect_false (postfork))
3337 loop_fork (EV_A); 3801 loop_fork (EV_A);
3338 3802
3339 /* update fd-related kernel structures */ 3803 /* update fd-related kernel structures */
3340 fd_reify (EV_A); 3804 fd_reify (EV_A);
3341 3805
… …
3346 3810
3347 /* remember old timestamp for io_blocktime calculation */ 3811 /* remember old timestamp for io_blocktime calculation */
3348 ev_tstamp prev_mn_now = mn_now; 3812 ev_tstamp prev_mn_now = mn_now;
3349 3813
3350 /* update time to cancel out callback processing overhead */ 3814 /* update time to cancel out callback processing overhead */
3351 time_update (EV_A_ 1e100); 3815 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3352 3816
3353 /* from now on, we want a pipe-wake-up */ 3817 /* from now on, we want a pipe-wake-up */
3354 pipe_write_wanted = 1; 3818 pipe_write_wanted = 1;
3355 3819
3356 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3820 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3357 3821
3358 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3822 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3359 { 3823 {
3360 waittime = MAX_BLOCKTIME; 3824 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3361 3825
3362 if (timercnt) 3826 if (timercnt)
3363 { 3827 {
3364 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3828 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3365 if (waittime > to) waittime = to; 3829 if (waittime > to) waittime = to;
… …
3372 if (waittime > to) waittime = to; 3836 if (waittime > to) waittime = to;
3373 } 3837 }
3374#endif 3838#endif
3375 3839
3376 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3840 /* don't let timeouts decrease the waittime below timeout_blocktime */
3377 if (expect_false (waittime < timeout_blocktime)) 3841 if (ecb_expect_false (waittime < timeout_blocktime))
3378 waittime = timeout_blocktime; 3842 waittime = timeout_blocktime;
3379 3843
3380 /* at this point, we NEED to wait, so we have to ensure */ 3844 /* at this point, we NEED to wait, so we have to ensure */
3381 /* to pass a minimum nonzero value to the backend */ 3845 /* to pass a minimum nonzero value to the backend */
3382 if (expect_false (waittime < backend_mintime)) 3846 if (ecb_expect_false (waittime < backend_mintime))
3383 waittime = backend_mintime; 3847 waittime = backend_mintime;
3384 3848
3385 /* extra check because io_blocktime is commonly 0 */ 3849 /* extra check because io_blocktime is commonly 0 */
3386 if (expect_false (io_blocktime)) 3850 if (ecb_expect_false (io_blocktime))
3387 { 3851 {
3388 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3852 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3389 3853
3390 if (sleeptime > waittime - backend_mintime) 3854 if (sleeptime > waittime - backend_mintime)
3391 sleeptime = waittime - backend_mintime; 3855 sleeptime = waittime - backend_mintime;
3392 3856
3393 if (expect_true (sleeptime > 0.)) 3857 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3394 { 3858 {
3395 ev_sleep (sleeptime); 3859 ev_sleep (sleeptime);
3396 waittime -= sleeptime; 3860 waittime -= sleeptime;
3397 } 3861 }
3398 } 3862 }
… …
3412 { 3876 {
3413 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3877 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3414 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3878 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3415 } 3879 }
3416 3880
3417
3418 /* update ev_rt_now, do magic */ 3881 /* update ev_rt_now, do magic */
3419 time_update (EV_A_ waittime + sleeptime); 3882 time_update (EV_A_ waittime + sleeptime);
3420 } 3883 }
3421 3884
3422 /* queue pending timers and reschedule them */ 3885 /* queue pending timers and reschedule them */
… …
3430 idle_reify (EV_A); 3893 idle_reify (EV_A);
3431#endif 3894#endif
3432 3895
3433#if EV_CHECK_ENABLE 3896#if EV_CHECK_ENABLE
3434 /* queue check watchers, to be executed first */ 3897 /* queue check watchers, to be executed first */
3435 if (expect_false (checkcnt)) 3898 if (ecb_expect_false (checkcnt))
3436 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3899 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3437#endif 3900#endif
3438 3901
3439 EV_INVOKE_PENDING; 3902 EV_INVOKE_PENDING;
3440 } 3903 }
3441 while (expect_true ( 3904 while (ecb_expect_true (
3442 activecnt 3905 activecnt
3443 && !loop_done 3906 && !loop_done
3444 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3907 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3445 )); 3908 ));
3446 3909
… …
3453 3916
3454 return activecnt; 3917 return activecnt;
3455} 3918}
3456 3919
3457void 3920void
3458ev_break (EV_P_ int how) EV_THROW 3921ev_break (EV_P_ int how) EV_NOEXCEPT
3459{ 3922{
3460 loop_done = how; 3923 loop_done = how;
3461} 3924}
3462 3925
3463void 3926void
3464ev_ref (EV_P) EV_THROW 3927ev_ref (EV_P) EV_NOEXCEPT
3465{ 3928{
3466 ++activecnt; 3929 ++activecnt;
3467} 3930}
3468 3931
3469void 3932void
3470ev_unref (EV_P) EV_THROW 3933ev_unref (EV_P) EV_NOEXCEPT
3471{ 3934{
3472 --activecnt; 3935 --activecnt;
3473} 3936}
3474 3937
3475void 3938void
3476ev_now_update (EV_P) EV_THROW 3939ev_now_update (EV_P) EV_NOEXCEPT
3477{ 3940{
3478 time_update (EV_A_ 1e100); 3941 time_update (EV_A_ EV_TSTAMP_HUGE);
3479} 3942}
3480 3943
3481void 3944void
3482ev_suspend (EV_P) EV_THROW 3945ev_suspend (EV_P) EV_NOEXCEPT
3483{ 3946{
3484 ev_now_update (EV_A); 3947 ev_now_update (EV_A);
3485} 3948}
3486 3949
3487void 3950void
3488ev_resume (EV_P) EV_THROW 3951ev_resume (EV_P) EV_NOEXCEPT
3489{ 3952{
3490 ev_tstamp mn_prev = mn_now; 3953 ev_tstamp mn_prev = mn_now;
3491 3954
3492 ev_now_update (EV_A); 3955 ev_now_update (EV_A);
3493 timers_reschedule (EV_A_ mn_now - mn_prev); 3956 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3510inline_size void 3973inline_size void
3511wlist_del (WL *head, WL elem) 3974wlist_del (WL *head, WL elem)
3512{ 3975{
3513 while (*head) 3976 while (*head)
3514 { 3977 {
3515 if (expect_true (*head == elem)) 3978 if (ecb_expect_true (*head == elem))
3516 { 3979 {
3517 *head = elem->next; 3980 *head = elem->next;
3518 break; 3981 break;
3519 } 3982 }
3520 3983
… …
3532 w->pending = 0; 3995 w->pending = 0;
3533 } 3996 }
3534} 3997}
3535 3998
3536int 3999int
3537ev_clear_pending (EV_P_ void *w) EV_THROW 4000ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3538{ 4001{
3539 W w_ = (W)w; 4002 W w_ = (W)w;
3540 int pending = w_->pending; 4003 int pending = w_->pending;
3541 4004
3542 if (expect_true (pending)) 4005 if (ecb_expect_true (pending))
3543 { 4006 {
3544 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4007 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3545 p->w = (W)&pending_w; 4008 p->w = (W)&pending_w;
3546 w_->pending = 0; 4009 w_->pending = 0;
3547 return p->events; 4010 return p->events;
… …
3574 w->active = 0; 4037 w->active = 0;
3575} 4038}
3576 4039
3577/*****************************************************************************/ 4040/*****************************************************************************/
3578 4041
3579void noinline 4042ecb_noinline
4043void
3580ev_io_start (EV_P_ ev_io *w) EV_THROW 4044ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3581{ 4045{
3582 int fd = w->fd; 4046 int fd = w->fd;
3583 4047
3584 if (expect_false (ev_is_active (w))) 4048 if (ecb_expect_false (ev_is_active (w)))
3585 return; 4049 return;
3586 4050
3587 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4051 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3588 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4052 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3589 4053
4054#if EV_VERIFY >= 2
4055 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4056#endif
3590 EV_FREQUENT_CHECK; 4057 EV_FREQUENT_CHECK;
3591 4058
3592 ev_start (EV_A_ (W)w, 1); 4059 ev_start (EV_A_ (W)w, 1);
3593 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4060 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3594 wlist_add (&anfds[fd].head, (WL)w); 4061 wlist_add (&anfds[fd].head, (WL)w);
3595 4062
3596 /* common bug, apparently */ 4063 /* common bug, apparently */
3597 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4064 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3598 4065
… …
3600 w->events &= ~EV__IOFDSET; 4067 w->events &= ~EV__IOFDSET;
3601 4068
3602 EV_FREQUENT_CHECK; 4069 EV_FREQUENT_CHECK;
3603} 4070}
3604 4071
3605void noinline 4072ecb_noinline
4073void
3606ev_io_stop (EV_P_ ev_io *w) EV_THROW 4074ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3607{ 4075{
3608 clear_pending (EV_A_ (W)w); 4076 clear_pending (EV_A_ (W)w);
3609 if (expect_false (!ev_is_active (w))) 4077 if (ecb_expect_false (!ev_is_active (w)))
3610 return; 4078 return;
3611 4079
3612 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4080 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3613 4081
4082#if EV_VERIFY >= 2
4083 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4084#endif
3614 EV_FREQUENT_CHECK; 4085 EV_FREQUENT_CHECK;
3615 4086
3616 wlist_del (&anfds[w->fd].head, (WL)w); 4087 wlist_del (&anfds[w->fd].head, (WL)w);
3617 ev_stop (EV_A_ (W)w); 4088 ev_stop (EV_A_ (W)w);
3618 4089
3619 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4090 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3620 4091
3621 EV_FREQUENT_CHECK; 4092 EV_FREQUENT_CHECK;
3622} 4093}
3623 4094
3624void noinline 4095ecb_noinline
4096void
3625ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4097ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3626{ 4098{
3627 if (expect_false (ev_is_active (w))) 4099 if (ecb_expect_false (ev_is_active (w)))
3628 return; 4100 return;
3629 4101
3630 ev_at (w) += mn_now; 4102 ev_at (w) += mn_now;
3631 4103
3632 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4104 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3633 4105
3634 EV_FREQUENT_CHECK; 4106 EV_FREQUENT_CHECK;
3635 4107
3636 ++timercnt; 4108 ++timercnt;
3637 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4109 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3638 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4110 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3639 ANHE_w (timers [ev_active (w)]) = (WT)w; 4111 ANHE_w (timers [ev_active (w)]) = (WT)w;
3640 ANHE_at_cache (timers [ev_active (w)]); 4112 ANHE_at_cache (timers [ev_active (w)]);
3641 upheap (timers, ev_active (w)); 4113 upheap (timers, ev_active (w));
3642 4114
3643 EV_FREQUENT_CHECK; 4115 EV_FREQUENT_CHECK;
3644 4116
3645 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4117 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3646} 4118}
3647 4119
3648void noinline 4120ecb_noinline
4121void
3649ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4122ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3650{ 4123{
3651 clear_pending (EV_A_ (W)w); 4124 clear_pending (EV_A_ (W)w);
3652 if (expect_false (!ev_is_active (w))) 4125 if (ecb_expect_false (!ev_is_active (w)))
3653 return; 4126 return;
3654 4127
3655 EV_FREQUENT_CHECK; 4128 EV_FREQUENT_CHECK;
3656 4129
3657 { 4130 {
… …
3659 4132
3660 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4133 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3661 4134
3662 --timercnt; 4135 --timercnt;
3663 4136
3664 if (expect_true (active < timercnt + HEAP0)) 4137 if (ecb_expect_true (active < timercnt + HEAP0))
3665 { 4138 {
3666 timers [active] = timers [timercnt + HEAP0]; 4139 timers [active] = timers [timercnt + HEAP0];
3667 adjustheap (timers, timercnt, active); 4140 adjustheap (timers, timercnt, active);
3668 } 4141 }
3669 } 4142 }
… …
3673 ev_stop (EV_A_ (W)w); 4146 ev_stop (EV_A_ (W)w);
3674 4147
3675 EV_FREQUENT_CHECK; 4148 EV_FREQUENT_CHECK;
3676} 4149}
3677 4150
3678void noinline 4151ecb_noinline
4152void
3679ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4153ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3680{ 4154{
3681 EV_FREQUENT_CHECK; 4155 EV_FREQUENT_CHECK;
3682 4156
3683 clear_pending (EV_A_ (W)w); 4157 clear_pending (EV_A_ (W)w);
3684 4158
… …
3701 4175
3702 EV_FREQUENT_CHECK; 4176 EV_FREQUENT_CHECK;
3703} 4177}
3704 4178
3705ev_tstamp 4179ev_tstamp
3706ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4180ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3707{ 4181{
3708 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4182 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3709} 4183}
3710 4184
3711#if EV_PERIODIC_ENABLE 4185#if EV_PERIODIC_ENABLE
3712void noinline 4186ecb_noinline
4187void
3713ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4188ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3714{ 4189{
3715 if (expect_false (ev_is_active (w))) 4190 if (ecb_expect_false (ev_is_active (w)))
3716 return; 4191 return;
3717 4192
3718 if (w->reschedule_cb) 4193 if (w->reschedule_cb)
3719 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4194 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3720 else if (w->interval) 4195 else if (w->interval)
… …
3727 4202
3728 EV_FREQUENT_CHECK; 4203 EV_FREQUENT_CHECK;
3729 4204
3730 ++periodiccnt; 4205 ++periodiccnt;
3731 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4206 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3732 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4207 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3733 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4208 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3734 ANHE_at_cache (periodics [ev_active (w)]); 4209 ANHE_at_cache (periodics [ev_active (w)]);
3735 upheap (periodics, ev_active (w)); 4210 upheap (periodics, ev_active (w));
3736 4211
3737 EV_FREQUENT_CHECK; 4212 EV_FREQUENT_CHECK;
3738 4213
3739 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4214 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3740} 4215}
3741 4216
3742void noinline 4217ecb_noinline
4218void
3743ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4219ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3744{ 4220{
3745 clear_pending (EV_A_ (W)w); 4221 clear_pending (EV_A_ (W)w);
3746 if (expect_false (!ev_is_active (w))) 4222 if (ecb_expect_false (!ev_is_active (w)))
3747 return; 4223 return;
3748 4224
3749 EV_FREQUENT_CHECK; 4225 EV_FREQUENT_CHECK;
3750 4226
3751 { 4227 {
… …
3753 4229
3754 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4230 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3755 4231
3756 --periodiccnt; 4232 --periodiccnt;
3757 4233
3758 if (expect_true (active < periodiccnt + HEAP0)) 4234 if (ecb_expect_true (active < periodiccnt + HEAP0))
3759 { 4235 {
3760 periodics [active] = periodics [periodiccnt + HEAP0]; 4236 periodics [active] = periodics [periodiccnt + HEAP0];
3761 adjustheap (periodics, periodiccnt, active); 4237 adjustheap (periodics, periodiccnt, active);
3762 } 4238 }
3763 } 4239 }
… …
3765 ev_stop (EV_A_ (W)w); 4241 ev_stop (EV_A_ (W)w);
3766 4242
3767 EV_FREQUENT_CHECK; 4243 EV_FREQUENT_CHECK;
3768} 4244}
3769 4245
3770void noinline 4246ecb_noinline
4247void
3771ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4248ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3772{ 4249{
3773 /* TODO: use adjustheap and recalculation */ 4250 /* TODO: use adjustheap and recalculation */
3774 ev_periodic_stop (EV_A_ w); 4251 ev_periodic_stop (EV_A_ w);
3775 ev_periodic_start (EV_A_ w); 4252 ev_periodic_start (EV_A_ w);
3776} 4253}
… …
3780# define SA_RESTART 0 4257# define SA_RESTART 0
3781#endif 4258#endif
3782 4259
3783#if EV_SIGNAL_ENABLE 4260#if EV_SIGNAL_ENABLE
3784 4261
3785void noinline 4262ecb_noinline
4263void
3786ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4264ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3787{ 4265{
3788 if (expect_false (ev_is_active (w))) 4266 if (ecb_expect_false (ev_is_active (w)))
3789 return; 4267 return;
3790 4268
3791 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4269 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3792 4270
3793#if EV_MULTIPLICITY 4271#if EV_MULTIPLICITY
… …
3862 } 4340 }
3863 4341
3864 EV_FREQUENT_CHECK; 4342 EV_FREQUENT_CHECK;
3865} 4343}
3866 4344
3867void noinline 4345ecb_noinline
4346void
3868ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4347ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3869{ 4348{
3870 clear_pending (EV_A_ (W)w); 4349 clear_pending (EV_A_ (W)w);
3871 if (expect_false (!ev_is_active (w))) 4350 if (ecb_expect_false (!ev_is_active (w)))
3872 return; 4351 return;
3873 4352
3874 EV_FREQUENT_CHECK; 4353 EV_FREQUENT_CHECK;
3875 4354
3876 wlist_del (&signals [w->signum - 1].head, (WL)w); 4355 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3904#endif 4383#endif
3905 4384
3906#if EV_CHILD_ENABLE 4385#if EV_CHILD_ENABLE
3907 4386
3908void 4387void
3909ev_child_start (EV_P_ ev_child *w) EV_THROW 4388ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3910{ 4389{
3911#if EV_MULTIPLICITY 4390#if EV_MULTIPLICITY
3912 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4391 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3913#endif 4392#endif
3914 if (expect_false (ev_is_active (w))) 4393 if (ecb_expect_false (ev_is_active (w)))
3915 return; 4394 return;
3916 4395
3917 EV_FREQUENT_CHECK; 4396 EV_FREQUENT_CHECK;
3918 4397
3919 ev_start (EV_A_ (W)w, 1); 4398 ev_start (EV_A_ (W)w, 1);
… …
3921 4400
3922 EV_FREQUENT_CHECK; 4401 EV_FREQUENT_CHECK;
3923} 4402}
3924 4403
3925void 4404void
3926ev_child_stop (EV_P_ ev_child *w) EV_THROW 4405ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3927{ 4406{
3928 clear_pending (EV_A_ (W)w); 4407 clear_pending (EV_A_ (W)w);
3929 if (expect_false (!ev_is_active (w))) 4408 if (ecb_expect_false (!ev_is_active (w)))
3930 return; 4409 return;
3931 4410
3932 EV_FREQUENT_CHECK; 4411 EV_FREQUENT_CHECK;
3933 4412
3934 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4413 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3948 4427
3949#define DEF_STAT_INTERVAL 5.0074891 4428#define DEF_STAT_INTERVAL 5.0074891
3950#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4429#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3951#define MIN_STAT_INTERVAL 0.1074891 4430#define MIN_STAT_INTERVAL 0.1074891
3952 4431
3953static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4432ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3954 4433
3955#if EV_USE_INOTIFY 4434#if EV_USE_INOTIFY
3956 4435
3957/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4436/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3958# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4437# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3959 4438
3960static void noinline 4439ecb_noinline
4440static void
3961infy_add (EV_P_ ev_stat *w) 4441infy_add (EV_P_ ev_stat *w)
3962{ 4442{
3963 w->wd = inotify_add_watch (fs_fd, w->path, 4443 w->wd = inotify_add_watch (fs_fd, w->path,
3964 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4444 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3965 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4445 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4029 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4509 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4030 ev_timer_again (EV_A_ &w->timer); 4510 ev_timer_again (EV_A_ &w->timer);
4031 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4511 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4032} 4512}
4033 4513
4034static void noinline 4514ecb_noinline
4515static void
4035infy_del (EV_P_ ev_stat *w) 4516infy_del (EV_P_ ev_stat *w)
4036{ 4517{
4037 int slot; 4518 int slot;
4038 int wd = w->wd; 4519 int wd = w->wd;
4039 4520
… …
4046 4527
4047 /* remove this watcher, if others are watching it, they will rearm */ 4528 /* remove this watcher, if others are watching it, they will rearm */
4048 inotify_rm_watch (fs_fd, wd); 4529 inotify_rm_watch (fs_fd, wd);
4049} 4530}
4050 4531
4051static void noinline 4532ecb_noinline
4533static void
4052infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4534infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4053{ 4535{
4054 if (slot < 0) 4536 if (slot < 0)
4055 /* overflow, need to check for all hash slots */ 4537 /* overflow, need to check for all hash slots */
4056 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4538 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4092 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4574 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4093 ofs += sizeof (struct inotify_event) + ev->len; 4575 ofs += sizeof (struct inotify_event) + ev->len;
4094 } 4576 }
4095} 4577}
4096 4578
4097inline_size void ecb_cold 4579inline_size ecb_cold
4580void
4098ev_check_2625 (EV_P) 4581ev_check_2625 (EV_P)
4099{ 4582{
4100 /* kernels < 2.6.25 are borked 4583 /* kernels < 2.6.25 are borked
4101 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4584 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4102 */ 4585 */
… …
4192#else 4675#else
4193# define EV_LSTAT(p,b) lstat (p, b) 4676# define EV_LSTAT(p,b) lstat (p, b)
4194#endif 4677#endif
4195 4678
4196void 4679void
4197ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4680ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4198{ 4681{
4199 if (lstat (w->path, &w->attr) < 0) 4682 if (lstat (w->path, &w->attr) < 0)
4200 w->attr.st_nlink = 0; 4683 w->attr.st_nlink = 0;
4201 else if (!w->attr.st_nlink) 4684 else if (!w->attr.st_nlink)
4202 w->attr.st_nlink = 1; 4685 w->attr.st_nlink = 1;
4203} 4686}
4204 4687
4205static void noinline 4688ecb_noinline
4689static void
4206stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4690stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4207{ 4691{
4208 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4692 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4209 4693
4210 ev_statdata prev = w->attr; 4694 ev_statdata prev = w->attr;
… …
4241 ev_feed_event (EV_A_ w, EV_STAT); 4725 ev_feed_event (EV_A_ w, EV_STAT);
4242 } 4726 }
4243} 4727}
4244 4728
4245void 4729void
4246ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4730ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4247{ 4731{
4248 if (expect_false (ev_is_active (w))) 4732 if (ecb_expect_false (ev_is_active (w)))
4249 return; 4733 return;
4250 4734
4251 ev_stat_stat (EV_A_ w); 4735 ev_stat_stat (EV_A_ w);
4252 4736
4253 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4737 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4272 4756
4273 EV_FREQUENT_CHECK; 4757 EV_FREQUENT_CHECK;
4274} 4758}
4275 4759
4276void 4760void
4277ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4761ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4278{ 4762{
4279 clear_pending (EV_A_ (W)w); 4763 clear_pending (EV_A_ (W)w);
4280 if (expect_false (!ev_is_active (w))) 4764 if (ecb_expect_false (!ev_is_active (w)))
4281 return; 4765 return;
4282 4766
4283 EV_FREQUENT_CHECK; 4767 EV_FREQUENT_CHECK;
4284 4768
4285#if EV_USE_INOTIFY 4769#if EV_USE_INOTIFY
… …
4298} 4782}
4299#endif 4783#endif
4300 4784
4301#if EV_IDLE_ENABLE 4785#if EV_IDLE_ENABLE
4302void 4786void
4303ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4787ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4304{ 4788{
4305 if (expect_false (ev_is_active (w))) 4789 if (ecb_expect_false (ev_is_active (w)))
4306 return; 4790 return;
4307 4791
4308 pri_adjust (EV_A_ (W)w); 4792 pri_adjust (EV_A_ (W)w);
4309 4793
4310 EV_FREQUENT_CHECK; 4794 EV_FREQUENT_CHECK;
… …
4313 int active = ++idlecnt [ABSPRI (w)]; 4797 int active = ++idlecnt [ABSPRI (w)];
4314 4798
4315 ++idleall; 4799 ++idleall;
4316 ev_start (EV_A_ (W)w, active); 4800 ev_start (EV_A_ (W)w, active);
4317 4801
4318 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4802 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4319 idles [ABSPRI (w)][active - 1] = w; 4803 idles [ABSPRI (w)][active - 1] = w;
4320 } 4804 }
4321 4805
4322 EV_FREQUENT_CHECK; 4806 EV_FREQUENT_CHECK;
4323} 4807}
4324 4808
4325void 4809void
4326ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4810ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4327{ 4811{
4328 clear_pending (EV_A_ (W)w); 4812 clear_pending (EV_A_ (W)w);
4329 if (expect_false (!ev_is_active (w))) 4813 if (ecb_expect_false (!ev_is_active (w)))
4330 return; 4814 return;
4331 4815
4332 EV_FREQUENT_CHECK; 4816 EV_FREQUENT_CHECK;
4333 4817
4334 { 4818 {
… …
4345} 4829}
4346#endif 4830#endif
4347 4831
4348#if EV_PREPARE_ENABLE 4832#if EV_PREPARE_ENABLE
4349void 4833void
4350ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4834ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4351{ 4835{
4352 if (expect_false (ev_is_active (w))) 4836 if (ecb_expect_false (ev_is_active (w)))
4353 return; 4837 return;
4354 4838
4355 EV_FREQUENT_CHECK; 4839 EV_FREQUENT_CHECK;
4356 4840
4357 ev_start (EV_A_ (W)w, ++preparecnt); 4841 ev_start (EV_A_ (W)w, ++preparecnt);
4358 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4842 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4359 prepares [preparecnt - 1] = w; 4843 prepares [preparecnt - 1] = w;
4360 4844
4361 EV_FREQUENT_CHECK; 4845 EV_FREQUENT_CHECK;
4362} 4846}
4363 4847
4364void 4848void
4365ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4849ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4366{ 4850{
4367 clear_pending (EV_A_ (W)w); 4851 clear_pending (EV_A_ (W)w);
4368 if (expect_false (!ev_is_active (w))) 4852 if (ecb_expect_false (!ev_is_active (w)))
4369 return; 4853 return;
4370 4854
4371 EV_FREQUENT_CHECK; 4855 EV_FREQUENT_CHECK;
4372 4856
4373 { 4857 {
… …
4383} 4867}
4384#endif 4868#endif
4385 4869
4386#if EV_CHECK_ENABLE 4870#if EV_CHECK_ENABLE
4387void 4871void
4388ev_check_start (EV_P_ ev_check *w) EV_THROW 4872ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4389{ 4873{
4390 if (expect_false (ev_is_active (w))) 4874 if (ecb_expect_false (ev_is_active (w)))
4391 return; 4875 return;
4392 4876
4393 EV_FREQUENT_CHECK; 4877 EV_FREQUENT_CHECK;
4394 4878
4395 ev_start (EV_A_ (W)w, ++checkcnt); 4879 ev_start (EV_A_ (W)w, ++checkcnt);
4396 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4880 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4397 checks [checkcnt - 1] = w; 4881 checks [checkcnt - 1] = w;
4398 4882
4399 EV_FREQUENT_CHECK; 4883 EV_FREQUENT_CHECK;
4400} 4884}
4401 4885
4402void 4886void
4403ev_check_stop (EV_P_ ev_check *w) EV_THROW 4887ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4404{ 4888{
4405 clear_pending (EV_A_ (W)w); 4889 clear_pending (EV_A_ (W)w);
4406 if (expect_false (!ev_is_active (w))) 4890 if (ecb_expect_false (!ev_is_active (w)))
4407 return; 4891 return;
4408 4892
4409 EV_FREQUENT_CHECK; 4893 EV_FREQUENT_CHECK;
4410 4894
4411 { 4895 {
… …
4420 EV_FREQUENT_CHECK; 4904 EV_FREQUENT_CHECK;
4421} 4905}
4422#endif 4906#endif
4423 4907
4424#if EV_EMBED_ENABLE 4908#if EV_EMBED_ENABLE
4425void noinline 4909ecb_noinline
4910void
4426ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4911ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4427{ 4912{
4428 ev_run (w->other, EVRUN_NOWAIT); 4913 ev_run (w->other, EVRUN_NOWAIT);
4429} 4914}
4430 4915
4431static void 4916static void
… …
4479 ev_idle_stop (EV_A_ idle); 4964 ev_idle_stop (EV_A_ idle);
4480} 4965}
4481#endif 4966#endif
4482 4967
4483void 4968void
4484ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4969ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4485{ 4970{
4486 if (expect_false (ev_is_active (w))) 4971 if (ecb_expect_false (ev_is_active (w)))
4487 return; 4972 return;
4488 4973
4489 { 4974 {
4490 EV_P = w->other; 4975 EV_P = w->other;
4491 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4976 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4510 4995
4511 EV_FREQUENT_CHECK; 4996 EV_FREQUENT_CHECK;
4512} 4997}
4513 4998
4514void 4999void
4515ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5000ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4516{ 5001{
4517 clear_pending (EV_A_ (W)w); 5002 clear_pending (EV_A_ (W)w);
4518 if (expect_false (!ev_is_active (w))) 5003 if (ecb_expect_false (!ev_is_active (w)))
4519 return; 5004 return;
4520 5005
4521 EV_FREQUENT_CHECK; 5006 EV_FREQUENT_CHECK;
4522 5007
4523 ev_io_stop (EV_A_ &w->io); 5008 ev_io_stop (EV_A_ &w->io);
… …
4530} 5015}
4531#endif 5016#endif
4532 5017
4533#if EV_FORK_ENABLE 5018#if EV_FORK_ENABLE
4534void 5019void
4535ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5020ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4536{ 5021{
4537 if (expect_false (ev_is_active (w))) 5022 if (ecb_expect_false (ev_is_active (w)))
4538 return; 5023 return;
4539 5024
4540 EV_FREQUENT_CHECK; 5025 EV_FREQUENT_CHECK;
4541 5026
4542 ev_start (EV_A_ (W)w, ++forkcnt); 5027 ev_start (EV_A_ (W)w, ++forkcnt);
4543 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5028 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4544 forks [forkcnt - 1] = w; 5029 forks [forkcnt - 1] = w;
4545 5030
4546 EV_FREQUENT_CHECK; 5031 EV_FREQUENT_CHECK;
4547} 5032}
4548 5033
4549void 5034void
4550ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5035ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4551{ 5036{
4552 clear_pending (EV_A_ (W)w); 5037 clear_pending (EV_A_ (W)w);
4553 if (expect_false (!ev_is_active (w))) 5038 if (ecb_expect_false (!ev_is_active (w)))
4554 return; 5039 return;
4555 5040
4556 EV_FREQUENT_CHECK; 5041 EV_FREQUENT_CHECK;
4557 5042
4558 { 5043 {
… …
4568} 5053}
4569#endif 5054#endif
4570 5055
4571#if EV_CLEANUP_ENABLE 5056#if EV_CLEANUP_ENABLE
4572void 5057void
4573ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5058ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4574{ 5059{
4575 if (expect_false (ev_is_active (w))) 5060 if (ecb_expect_false (ev_is_active (w)))
4576 return; 5061 return;
4577 5062
4578 EV_FREQUENT_CHECK; 5063 EV_FREQUENT_CHECK;
4579 5064
4580 ev_start (EV_A_ (W)w, ++cleanupcnt); 5065 ev_start (EV_A_ (W)w, ++cleanupcnt);
4581 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5066 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4582 cleanups [cleanupcnt - 1] = w; 5067 cleanups [cleanupcnt - 1] = w;
4583 5068
4584 /* cleanup watchers should never keep a refcount on the loop */ 5069 /* cleanup watchers should never keep a refcount on the loop */
4585 ev_unref (EV_A); 5070 ev_unref (EV_A);
4586 EV_FREQUENT_CHECK; 5071 EV_FREQUENT_CHECK;
4587} 5072}
4588 5073
4589void 5074void
4590ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5075ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4591{ 5076{
4592 clear_pending (EV_A_ (W)w); 5077 clear_pending (EV_A_ (W)w);
4593 if (expect_false (!ev_is_active (w))) 5078 if (ecb_expect_false (!ev_is_active (w)))
4594 return; 5079 return;
4595 5080
4596 EV_FREQUENT_CHECK; 5081 EV_FREQUENT_CHECK;
4597 ev_ref (EV_A); 5082 ev_ref (EV_A);
4598 5083
… …
4609} 5094}
4610#endif 5095#endif
4611 5096
4612#if EV_ASYNC_ENABLE 5097#if EV_ASYNC_ENABLE
4613void 5098void
4614ev_async_start (EV_P_ ev_async *w) EV_THROW 5099ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4615{ 5100{
4616 if (expect_false (ev_is_active (w))) 5101 if (ecb_expect_false (ev_is_active (w)))
4617 return; 5102 return;
4618 5103
4619 w->sent = 0; 5104 w->sent = 0;
4620 5105
4621 evpipe_init (EV_A); 5106 evpipe_init (EV_A);
4622 5107
4623 EV_FREQUENT_CHECK; 5108 EV_FREQUENT_CHECK;
4624 5109
4625 ev_start (EV_A_ (W)w, ++asynccnt); 5110 ev_start (EV_A_ (W)w, ++asynccnt);
4626 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5111 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4627 asyncs [asynccnt - 1] = w; 5112 asyncs [asynccnt - 1] = w;
4628 5113
4629 EV_FREQUENT_CHECK; 5114 EV_FREQUENT_CHECK;
4630} 5115}
4631 5116
4632void 5117void
4633ev_async_stop (EV_P_ ev_async *w) EV_THROW 5118ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4634{ 5119{
4635 clear_pending (EV_A_ (W)w); 5120 clear_pending (EV_A_ (W)w);
4636 if (expect_false (!ev_is_active (w))) 5121 if (ecb_expect_false (!ev_is_active (w)))
4637 return; 5122 return;
4638 5123
4639 EV_FREQUENT_CHECK; 5124 EV_FREQUENT_CHECK;
4640 5125
4641 { 5126 {
… …
4649 5134
4650 EV_FREQUENT_CHECK; 5135 EV_FREQUENT_CHECK;
4651} 5136}
4652 5137
4653void 5138void
4654ev_async_send (EV_P_ ev_async *w) EV_THROW 5139ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4655{ 5140{
4656 w->sent = 1; 5141 w->sent = 1;
4657 evpipe_write (EV_A_ &async_pending); 5142 evpipe_write (EV_A_ &async_pending);
4658} 5143}
4659#endif 5144#endif
… …
4696 5181
4697 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5182 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4698} 5183}
4699 5184
4700void 5185void
4701ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5186ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4702{ 5187{
4703 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5188 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4704
4705 if (expect_false (!once))
4706 {
4707 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4708 return;
4709 }
4710 5189
4711 once->cb = cb; 5190 once->cb = cb;
4712 once->arg = arg; 5191 once->arg = arg;
4713 5192
4714 ev_init (&once->io, once_cb_io); 5193 ev_init (&once->io, once_cb_io);
… …
4727} 5206}
4728 5207
4729/*****************************************************************************/ 5208/*****************************************************************************/
4730 5209
4731#if EV_WALK_ENABLE 5210#if EV_WALK_ENABLE
4732void ecb_cold 5211ecb_cold
5212void
4733ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5213ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4734{ 5214{
4735 int i, j; 5215 int i, j;
4736 ev_watcher_list *wl, *wn; 5216 ev_watcher_list *wl, *wn;
4737 5217
4738 if (types & (EV_IO | EV_EMBED)) 5218 if (types & (EV_IO | EV_EMBED))

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