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Comparing libev/ev.c (file contents):
Revision 1.467 by root, Fri May 16 15:15:39 2014 UTC vs.
Revision 1.505 by root, Wed Jul 10 14:25:35 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
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) */
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.) \
478 548
479#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 549#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) 550#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
551#define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e6)
552#define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e9)
481 553
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 554/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */ 555/* ECB.H BEGIN */
484/* 556/*
485 * libecb - http://software.schmorp.de/pkg/libecb 557 * libecb - http://software.schmorp.de/pkg/libecb
486 * 558 *
487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> 559 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 560 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 561 * All rights reserved.
490 * 562 *
491 * Redistribution and use in source and binary forms, with or without modifica- 563 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met: 564 * tion, are permitted provided that the following conditions are met:
… …
523 595
524#ifndef ECB_H 596#ifndef ECB_H
525#define ECB_H 597#define ECB_H
526 598
527/* 16 bits major, 16 bits minor */ 599/* 16 bits major, 16 bits minor */
528#define ECB_VERSION 0x00010003 600#define ECB_VERSION 0x00010006
529 601
530#ifdef _WIN32 602#ifdef _WIN32
531 typedef signed char int8_t; 603 typedef signed char int8_t;
532 typedef unsigned char uint8_t; 604 typedef unsigned char uint8_t;
533 typedef signed short int16_t; 605 typedef signed short int16_t;
… …
550 typedef uint32_t uintptr_t; 622 typedef uint32_t uintptr_t;
551 typedef int32_t intptr_t; 623 typedef int32_t intptr_t;
552 #endif 624 #endif
553#else 625#else
554 #include <inttypes.h> 626 #include <inttypes.h>
555 #if UINTMAX_MAX > 0xffffffffU 627 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
556 #define ECB_PTRSIZE 8 628 #define ECB_PTRSIZE 8
557 #else 629 #else
558 #define ECB_PTRSIZE 4 630 #define ECB_PTRSIZE 4
559 #endif 631 #endif
560#endif 632#endif
561 633
634#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
635#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
636
562/* work around x32 idiocy by defining proper macros */ 637/* work around x32 idiocy by defining proper macros */
563#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 638#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
564 #if _ILP32 639 #if _ILP32
565 #define ECB_AMD64_X32 1 640 #define ECB_AMD64_X32 1
566 #else 641 #else
567 #define ECB_AMD64 1 642 #define ECB_AMD64 1
568 #endif 643 #endif
… …
573 * causing enormous grief in return for some better fake benchmark numbers. 648 * causing enormous grief in return for some better fake benchmark numbers.
574 * or so. 649 * or so.
575 * we try to detect these and simply assume they are not gcc - if they have 650 * we try to detect these and simply assume they are not gcc - if they have
576 * an issue with that they should have done it right in the first place. 651 * an issue with that they should have done it right in the first place.
577 */ 652 */
578#ifndef ECB_GCC_VERSION
579 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 653#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
580 #define ECB_GCC_VERSION(major,minor) 0 654 #define ECB_GCC_VERSION(major,minor) 0
581 #else 655#else
582 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 656 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
583 #endif 657#endif
658
659#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
660
661#if __clang__ && defined __has_builtin
662 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
663#else
664 #define ECB_CLANG_BUILTIN(x) 0
665#endif
666
667#if __clang__ && defined __has_extension
668 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
669#else
670 #define ECB_CLANG_EXTENSION(x) 0
584#endif 671#endif
585 672
586#define ECB_CPP (__cplusplus+0) 673#define ECB_CPP (__cplusplus+0)
587#define ECB_CPP11 (__cplusplus >= 201103L) 674#define ECB_CPP11 (__cplusplus >= 201103L)
675#define ECB_CPP14 (__cplusplus >= 201402L)
676#define ECB_CPP17 (__cplusplus >= 201703L)
588 677
589#if ECB_CPP 678#if ECB_CPP
590 #define ECB_C 0 679 #define ECB_C 0
591 #define ECB_STDC_VERSION 0 680 #define ECB_STDC_VERSION 0
592#else 681#else
… …
594 #define ECB_STDC_VERSION __STDC_VERSION__ 683 #define ECB_STDC_VERSION __STDC_VERSION__
595#endif 684#endif
596 685
597#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 686#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
598#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 687#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
688#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
599 689
600#if ECB_CPP 690#if ECB_CPP
601 #define ECB_EXTERN_C extern "C" 691 #define ECB_EXTERN_C extern "C"
602 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 692 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
603 #define ECB_EXTERN_C_END } 693 #define ECB_EXTERN_C_END }
… …
618 708
619#if ECB_NO_SMP 709#if ECB_NO_SMP
620 #define ECB_MEMORY_FENCE do { } while (0) 710 #define ECB_MEMORY_FENCE do { } while (0)
621#endif 711#endif
622 712
713/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
714#if __xlC__ && ECB_CPP
715 #include <builtins.h>
716#endif
717
718#if 1400 <= _MSC_VER
719 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
720#endif
721
623#ifndef ECB_MEMORY_FENCE 722#ifndef ECB_MEMORY_FENCE
624 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 723 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
724 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
625 #if __i386 || __i386__ 725 #if __i386 || __i386__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 726 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 727 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 728 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
629 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 729 #elif ECB_GCC_AMD64
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 730 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
631 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 731 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
632 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 732 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
633 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 733 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 734 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
735 #elif defined __ARM_ARCH_2__ \
736 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
737 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
738 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
739 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
740 || defined __ARM_ARCH_5TEJ__
741 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
635 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 742 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
636 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 743 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
744 || defined __ARM_ARCH_6T2__
637 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 745 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
638 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 746 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
639 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 747 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 748 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
641 #elif __aarch64__ 749 #elif __aarch64__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 750 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
643 #elif (__sparc || __sparc__) && !__sparcv8 751 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 752 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
645 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 753 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
646 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 754 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
647 #elif defined __s390__ || defined __s390x__ 755 #elif defined __s390__ || defined __s390x__
648 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 756 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
671 #if ECB_GCC_VERSION(4,7) 779 #if ECB_GCC_VERSION(4,7)
672 /* see comment below (stdatomic.h) about the C11 memory model. */ 780 /* see comment below (stdatomic.h) about the C11 memory model. */
673 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 781 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
674 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 782 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
675 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 783 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
784 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
676 785
677 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 786 #elif ECB_CLANG_EXTENSION(c_atomic)
678 * without risking compile time errors with other compilers. We *could*
679 * define our own ecb_clang_has_feature, but I just can't be bothered to work
680 * around this shit time and again.
681 * #elif defined __clang && __has_feature (cxx_atomic)
682 * // see comment below (stdatomic.h) about the C11 memory model. 787 /* see comment below (stdatomic.h) about the C11 memory model. */
683 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 788 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
684 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 789 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
685 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 790 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
686 */ 791 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
687 792
688 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 793 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
689 #define ECB_MEMORY_FENCE __sync_synchronize () 794 #define ECB_MEMORY_FENCE __sync_synchronize ()
690 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 795 #elif _MSC_VER >= 1500 /* VC++ 2008 */
691 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 796 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
701 #elif defined _WIN32 806 #elif defined _WIN32
702 #include <WinNT.h> 807 #include <WinNT.h>
703 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 808 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
704 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 809 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
705 #include <mbarrier.h> 810 #include <mbarrier.h>
706 #define ECB_MEMORY_FENCE __machine_rw_barrier () 811 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
707 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 812 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
708 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 813 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
814 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
709 #elif __xlC__ 815 #elif __xlC__
710 #define ECB_MEMORY_FENCE __sync () 816 #define ECB_MEMORY_FENCE __sync ()
711 #endif 817 #endif
712#endif 818#endif
713 819
714#ifndef ECB_MEMORY_FENCE 820#ifndef ECB_MEMORY_FENCE
715 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 821 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
716 /* we assume that these memory fences work on all variables/all memory accesses, */ 822 /* we assume that these memory fences work on all variables/all memory accesses, */
717 /* not just C11 atomics and atomic accesses */ 823 /* not just C11 atomics and atomic accesses */
718 #include <stdatomic.h> 824 #include <stdatomic.h>
719 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
720 /* any fence other than seq_cst, which isn't very efficient for us. */
721 /* Why that is, we don't know - either the C11 memory model is quite useless */
722 /* for most usages, or gcc and clang have a bug */
723 /* I *currently* lean towards the latter, and inefficiently implement */
724 /* all three of ecb's fences as a seq_cst fence */
725 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
726 /* for all __atomic_thread_fence's except seq_cst */
727 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 825 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
826 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
827 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
728 #endif 828 #endif
729#endif 829#endif
730 830
731#ifndef ECB_MEMORY_FENCE 831#ifndef ECB_MEMORY_FENCE
732 #if !ECB_AVOID_PTHREADS 832 #if !ECB_AVOID_PTHREADS
… …
752 852
753#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 853#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
754 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 854 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
755#endif 855#endif
756 856
857#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
858 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
859#endif
860
757/*****************************************************************************/ 861/*****************************************************************************/
758 862
759#if __cplusplus 863#if ECB_CPP
760 #define ecb_inline static inline 864 #define ecb_inline static inline
761#elif ECB_GCC_VERSION(2,5) 865#elif ECB_GCC_VERSION(2,5)
762 #define ecb_inline static __inline__ 866 #define ecb_inline static __inline__
763#elif ECB_C99 867#elif ECB_C99
764 #define ecb_inline static inline 868 #define ecb_inline static inline
… …
778 882
779#define ECB_CONCAT_(a, b) a ## b 883#define ECB_CONCAT_(a, b) a ## b
780#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 884#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
781#define ECB_STRINGIFY_(a) # a 885#define ECB_STRINGIFY_(a) # a
782#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 886#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
887#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
783 888
784#define ecb_function_ ecb_inline 889#define ecb_function_ ecb_inline
785 890
786#if ECB_GCC_VERSION(3,1) 891#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
787 #define ecb_attribute(attrlist) __attribute__(attrlist) 892 #define ecb_attribute(attrlist) __attribute__ (attrlist)
788 #define ecb_is_constant(expr) __builtin_constant_p (expr)
789 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
790 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
791#else 893#else
792 #define ecb_attribute(attrlist) 894 #define ecb_attribute(attrlist)
895#endif
793 896
897#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
898 #define ecb_is_constant(expr) __builtin_constant_p (expr)
899#else
794 /* possible C11 impl for integral types 900 /* possible C11 impl for integral types
795 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 901 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
796 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ 902 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
797 903
798 #define ecb_is_constant(expr) 0 904 #define ecb_is_constant(expr) 0
905#endif
906
907#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
908 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
909#else
799 #define ecb_expect(expr,value) (expr) 910 #define ecb_expect(expr,value) (expr)
911#endif
912
913#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
914 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
915#else
800 #define ecb_prefetch(addr,rw,locality) 916 #define ecb_prefetch(addr,rw,locality)
801#endif 917#endif
802 918
803/* no emulation for ecb_decltype */ 919/* no emulation for ecb_decltype */
804#if ECB_GCC_VERSION(4,5) 920#if ECB_CPP11
921 // older implementations might have problems with decltype(x)::type, work around it
922 template<class T> struct ecb_decltype_t { typedef T type; };
805 #define ecb_decltype(x) __decltype(x) 923 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
806#elif ECB_GCC_VERSION(3,0) 924#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
807 #define ecb_decltype(x) __typeof(x) 925 #define ecb_decltype(x) __typeof__ (x)
808#endif 926#endif
809 927
928#if _MSC_VER >= 1300
929 #define ecb_deprecated __declspec (deprecated)
930#else
931 #define ecb_deprecated ecb_attribute ((__deprecated__))
932#endif
933
934#if _MSC_VER >= 1500
935 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
936#elif ECB_GCC_VERSION(4,5)
937 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
938#else
939 #define ecb_deprecated_message(msg) ecb_deprecated
940#endif
941
942#if _MSC_VER >= 1400
943 #define ecb_noinline __declspec (noinline)
944#else
810#define ecb_noinline ecb_attribute ((__noinline__)) 945 #define ecb_noinline ecb_attribute ((__noinline__))
946#endif
947
811#define ecb_unused ecb_attribute ((__unused__)) 948#define ecb_unused ecb_attribute ((__unused__))
812#define ecb_const ecb_attribute ((__const__)) 949#define ecb_const ecb_attribute ((__const__))
813#define ecb_pure ecb_attribute ((__pure__)) 950#define ecb_pure ecb_attribute ((__pure__))
814 951
815#if ECB_C11 952#if ECB_C11 || __IBMC_NORETURN
953 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
816 #define ecb_noreturn _Noreturn 954 #define ecb_noreturn _Noreturn
955#elif ECB_CPP11
956 #define ecb_noreturn [[noreturn]]
957#elif _MSC_VER >= 1200
958 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
959 #define ecb_noreturn __declspec (noreturn)
817#else 960#else
818 #define ecb_noreturn ecb_attribute ((__noreturn__)) 961 #define ecb_noreturn ecb_attribute ((__noreturn__))
819#endif 962#endif
820 963
821#if ECB_GCC_VERSION(4,3) 964#if ECB_GCC_VERSION(4,3)
… …
836/* for compatibility to the rest of the world */ 979/* for compatibility to the rest of the world */
837#define ecb_likely(expr) ecb_expect_true (expr) 980#define ecb_likely(expr) ecb_expect_true (expr)
838#define ecb_unlikely(expr) ecb_expect_false (expr) 981#define ecb_unlikely(expr) ecb_expect_false (expr)
839 982
840/* count trailing zero bits and count # of one bits */ 983/* count trailing zero bits and count # of one bits */
841#if ECB_GCC_VERSION(3,4) 984#if ECB_GCC_VERSION(3,4) \
985 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
986 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
987 && ECB_CLANG_BUILTIN(__builtin_popcount))
842 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 988 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
843 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 989 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
844 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 990 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
845 #define ecb_ctz32(x) __builtin_ctz (x) 991 #define ecb_ctz32(x) __builtin_ctz (x)
846 #define ecb_ctz64(x) __builtin_ctzll (x) 992 #define ecb_ctz64(x) __builtin_ctzll (x)
847 #define ecb_popcount32(x) __builtin_popcount (x) 993 #define ecb_popcount32(x) __builtin_popcount (x)
848 /* no popcountll */ 994 /* no popcountll */
849#else 995#else
850 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 996 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
851 ecb_function_ int 997 ecb_function_ ecb_const int
852 ecb_ctz32 (uint32_t x) 998 ecb_ctz32 (uint32_t x)
853 { 999 {
1000#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1001 unsigned long r;
1002 _BitScanForward (&r, x);
1003 return (int)r;
1004#else
854 int r = 0; 1005 int r = 0;
855 1006
856 x &= ~x + 1; /* this isolates the lowest bit */ 1007 x &= ~x + 1; /* this isolates the lowest bit */
857 1008
858#if ECB_branchless_on_i386 1009#if ECB_branchless_on_i386
… …
868 if (x & 0xff00ff00) r += 8; 1019 if (x & 0xff00ff00) r += 8;
869 if (x & 0xffff0000) r += 16; 1020 if (x & 0xffff0000) r += 16;
870#endif 1021#endif
871 1022
872 return r; 1023 return r;
1024#endif
873 } 1025 }
874 1026
875 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1027 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
876 ecb_function_ int 1028 ecb_function_ ecb_const int
877 ecb_ctz64 (uint64_t x) 1029 ecb_ctz64 (uint64_t x)
878 { 1030 {
1031#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1032 unsigned long r;
1033 _BitScanForward64 (&r, x);
1034 return (int)r;
1035#else
879 int shift = x & 0xffffffffU ? 0 : 32; 1036 int shift = x & 0xffffffff ? 0 : 32;
880 return ecb_ctz32 (x >> shift) + shift; 1037 return ecb_ctz32 (x >> shift) + shift;
1038#endif
881 } 1039 }
882 1040
883 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1041 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
884 ecb_function_ int 1042 ecb_function_ ecb_const int
885 ecb_popcount32 (uint32_t x) 1043 ecb_popcount32 (uint32_t x)
886 { 1044 {
887 x -= (x >> 1) & 0x55555555; 1045 x -= (x >> 1) & 0x55555555;
888 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1046 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
889 x = ((x >> 4) + x) & 0x0f0f0f0f; 1047 x = ((x >> 4) + x) & 0x0f0f0f0f;
890 x *= 0x01010101; 1048 x *= 0x01010101;
891 1049
892 return x >> 24; 1050 return x >> 24;
893 } 1051 }
894 1052
895 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1053 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
896 ecb_function_ int ecb_ld32 (uint32_t x) 1054 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
897 { 1055 {
1056#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1057 unsigned long r;
1058 _BitScanReverse (&r, x);
1059 return (int)r;
1060#else
898 int r = 0; 1061 int r = 0;
899 1062
900 if (x >> 16) { x >>= 16; r += 16; } 1063 if (x >> 16) { x >>= 16; r += 16; }
901 if (x >> 8) { x >>= 8; r += 8; } 1064 if (x >> 8) { x >>= 8; r += 8; }
902 if (x >> 4) { x >>= 4; r += 4; } 1065 if (x >> 4) { x >>= 4; r += 4; }
903 if (x >> 2) { x >>= 2; r += 2; } 1066 if (x >> 2) { x >>= 2; r += 2; }
904 if (x >> 1) { r += 1; } 1067 if (x >> 1) { r += 1; }
905 1068
906 return r; 1069 return r;
1070#endif
907 } 1071 }
908 1072
909 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1073 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
910 ecb_function_ int ecb_ld64 (uint64_t x) 1074 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
911 { 1075 {
1076#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1077 unsigned long r;
1078 _BitScanReverse64 (&r, x);
1079 return (int)r;
1080#else
912 int r = 0; 1081 int r = 0;
913 1082
914 if (x >> 32) { x >>= 32; r += 32; } 1083 if (x >> 32) { x >>= 32; r += 32; }
915 1084
916 return r + ecb_ld32 (x); 1085 return r + ecb_ld32 (x);
1086#endif
917 } 1087 }
918#endif 1088#endif
919 1089
920ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1090ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
921ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1091ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
922ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1092ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
923ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1093ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
924 1094
925ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1095ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
926ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1096ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
927{ 1097{
928 return ( (x * 0x0802U & 0x22110U) 1098 return ( (x * 0x0802U & 0x22110U)
929 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1099 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
930} 1100}
931 1101
932ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1102ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
933ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1103ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
934{ 1104{
935 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1105 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
936 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1106 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
937 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1107 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
938 x = ( x >> 8 ) | ( x << 8); 1108 x = ( x >> 8 ) | ( x << 8);
939 1109
940 return x; 1110 return x;
941} 1111}
942 1112
943ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1113ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
944ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1114ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
945{ 1115{
946 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1116 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
947 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1117 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
948 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1118 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
949 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1119 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
952 return x; 1122 return x;
953} 1123}
954 1124
955/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1125/* popcount64 is only available on 64 bit cpus as gcc builtin */
956/* so for this version we are lazy */ 1126/* so for this version we are lazy */
957ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1127ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
958ecb_function_ int 1128ecb_function_ ecb_const int
959ecb_popcount64 (uint64_t x) 1129ecb_popcount64 (uint64_t x)
960{ 1130{
961 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1131 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
962} 1132}
963 1133
964ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1134ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
965ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1135ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
966ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1136ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
967ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1137ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
968ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1138ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
969ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1139ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
970ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1140ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
971ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1141ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
972 1142
973ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1143ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
974ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1144ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
975ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1145ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
976ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1146ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
977ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1147ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
978ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1148ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
979ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1149ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
980ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1150ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
981 1151
982#if ECB_GCC_VERSION(4,3) 1152#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1153 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1154 #define ecb_bswap16(x) __builtin_bswap16 (x)
1155 #else
983 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1156 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1157 #endif
984 #define ecb_bswap32(x) __builtin_bswap32 (x) 1158 #define ecb_bswap32(x) __builtin_bswap32 (x)
985 #define ecb_bswap64(x) __builtin_bswap64 (x) 1159 #define ecb_bswap64(x) __builtin_bswap64 (x)
1160#elif _MSC_VER
1161 #include <stdlib.h>
1162 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1163 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1164 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
986#else 1165#else
987 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1166 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
988 ecb_function_ uint16_t 1167 ecb_function_ ecb_const uint16_t
989 ecb_bswap16 (uint16_t x) 1168 ecb_bswap16 (uint16_t x)
990 { 1169 {
991 return ecb_rotl16 (x, 8); 1170 return ecb_rotl16 (x, 8);
992 } 1171 }
993 1172
994 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1173 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
995 ecb_function_ uint32_t 1174 ecb_function_ ecb_const uint32_t
996 ecb_bswap32 (uint32_t x) 1175 ecb_bswap32 (uint32_t x)
997 { 1176 {
998 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1177 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
999 } 1178 }
1000 1179
1001 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1180 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1002 ecb_function_ uint64_t 1181 ecb_function_ ecb_const uint64_t
1003 ecb_bswap64 (uint64_t x) 1182 ecb_bswap64 (uint64_t x)
1004 { 1183 {
1005 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1184 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1006 } 1185 }
1007#endif 1186#endif
1008 1187
1009#if ECB_GCC_VERSION(4,5) 1188#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1010 #define ecb_unreachable() __builtin_unreachable () 1189 #define ecb_unreachable() __builtin_unreachable ()
1011#else 1190#else
1012 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1191 /* this seems to work fine, but gcc always emits a warning for it :/ */
1013 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1192 ecb_inline ecb_noreturn void ecb_unreachable (void);
1014 ecb_inline void ecb_unreachable (void) { } 1193 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1015#endif 1194#endif
1016 1195
1017/* try to tell the compiler that some condition is definitely true */ 1196/* try to tell the compiler that some condition is definitely true */
1018#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1197#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1019 1198
1020ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1199ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1021ecb_inline unsigned char 1200ecb_inline ecb_const uint32_t
1022ecb_byteorder_helper (void) 1201ecb_byteorder_helper (void)
1023{ 1202{
1024 /* the union code still generates code under pressure in gcc, */ 1203 /* the union code still generates code under pressure in gcc, */
1025 /* but less than using pointers, and always seems to */ 1204 /* but less than using pointers, and always seems to */
1026 /* successfully return a constant. */ 1205 /* successfully return a constant. */
1027 /* the reason why we have this horrible preprocessor mess */ 1206 /* the reason why we have this horrible preprocessor mess */
1028 /* is to avoid it in all cases, at least on common architectures */ 1207 /* is to avoid it in all cases, at least on common architectures */
1029 /* or when using a recent enough gcc version (>= 4.6) */ 1208 /* or when using a recent enough gcc version (>= 4.6) */
1030#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1031 return 0x44;
1032#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1209#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1210 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1211 #define ECB_LITTLE_ENDIAN 1
1033 return 0x44; 1212 return 0x44332211;
1034#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1213#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1214 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1215 #define ECB_BIG_ENDIAN 1
1035 return 0x11; 1216 return 0x11223344;
1036#else 1217#else
1037 union 1218 union
1038 { 1219 {
1220 uint8_t c[4];
1039 uint32_t i; 1221 uint32_t u;
1040 uint8_t c;
1041 } u = { 0x11223344 }; 1222 } u = { 0x11, 0x22, 0x33, 0x44 };
1042 return u.c; 1223 return u.u;
1043#endif 1224#endif
1044} 1225}
1045 1226
1046ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1227ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1047ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1228ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1048ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1229ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1049ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1230ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1050 1231
1051#if ECB_GCC_VERSION(3,0) || ECB_C99 1232#if ECB_GCC_VERSION(3,0) || ECB_C99
1052 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1233 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1053#else 1234#else
1054 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1235 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1055#endif 1236#endif
1056 1237
1057#if __cplusplus 1238#if ECB_CPP
1058 template<typename T> 1239 template<typename T>
1059 static inline T ecb_div_rd (T val, T div) 1240 static inline T ecb_div_rd (T val, T div)
1060 { 1241 {
1061 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1242 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1062 } 1243 }
… …
1079 } 1260 }
1080#else 1261#else
1081 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1262 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1082#endif 1263#endif
1083 1264
1265ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1266ecb_function_ ecb_const uint32_t
1267ecb_binary16_to_binary32 (uint32_t x)
1268{
1269 unsigned int s = (x & 0x8000) << (31 - 15);
1270 int e = (x >> 10) & 0x001f;
1271 unsigned int m = x & 0x03ff;
1272
1273 if (ecb_expect_false (e == 31))
1274 /* infinity or NaN */
1275 e = 255 - (127 - 15);
1276 else if (ecb_expect_false (!e))
1277 {
1278 if (ecb_expect_true (!m))
1279 /* zero, handled by code below by forcing e to 0 */
1280 e = 0 - (127 - 15);
1281 else
1282 {
1283 /* subnormal, renormalise */
1284 unsigned int s = 10 - ecb_ld32 (m);
1285
1286 m = (m << s) & 0x3ff; /* mask implicit bit */
1287 e -= s - 1;
1288 }
1289 }
1290
1291 /* e and m now are normalised, or zero, (or inf or nan) */
1292 e += 127 - 15;
1293
1294 return s | (e << 23) | (m << (23 - 10));
1295}
1296
1297ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1298ecb_function_ ecb_const uint16_t
1299ecb_binary32_to_binary16 (uint32_t x)
1300{
1301 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1302 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1303 unsigned int m = x & 0x007fffff;
1304
1305 x &= 0x7fffffff;
1306
1307 /* if it's within range of binary16 normals, use fast path */
1308 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1309 {
1310 /* mantissa round-to-even */
1311 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1312
1313 /* handle overflow */
1314 if (ecb_expect_false (m >= 0x00800000))
1315 {
1316 m >>= 1;
1317 e += 1;
1318 }
1319
1320 return s | (e << 10) | (m >> (23 - 10));
1321 }
1322
1323 /* handle large numbers and infinity */
1324 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1325 return s | 0x7c00;
1326
1327 /* handle zero, subnormals and small numbers */
1328 if (ecb_expect_true (x < 0x38800000))
1329 {
1330 /* zero */
1331 if (ecb_expect_true (!x))
1332 return s;
1333
1334 /* handle subnormals */
1335
1336 /* too small, will be zero */
1337 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1338 return s;
1339
1340 m |= 0x00800000; /* make implicit bit explicit */
1341
1342 /* very tricky - we need to round to the nearest e (+10) bit value */
1343 {
1344 unsigned int bits = 14 - e;
1345 unsigned int half = (1 << (bits - 1)) - 1;
1346 unsigned int even = (m >> bits) & 1;
1347
1348 /* if this overflows, we will end up with a normalised number */
1349 m = (m + half + even) >> bits;
1350 }
1351
1352 return s | m;
1353 }
1354
1355 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1356 m >>= 13;
1357
1358 return s | 0x7c00 | m | !m;
1359}
1360
1084/*******************************************************************************/ 1361/*******************************************************************************/
1085/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1362/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1086 1363
1087/* basically, everything uses "ieee pure-endian" floating point numbers */ 1364/* basically, everything uses "ieee pure-endian" floating point numbers */
1088/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1365/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1089#if 0 \ 1366#if 0 \
1090 || __i386 || __i386__ \ 1367 || __i386 || __i386__ \
1091 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1368 || ECB_GCC_AMD64 \
1092 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1369 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1093 || defined __s390__ || defined __s390x__ \ 1370 || defined __s390__ || defined __s390x__ \
1094 || defined __mips__ \ 1371 || defined __mips__ \
1095 || defined __alpha__ \ 1372 || defined __alpha__ \
1096 || defined __hppa__ \ 1373 || defined __hppa__ \
1097 || defined __ia64__ \ 1374 || defined __ia64__ \
1098 || defined __m68k__ \ 1375 || defined __m68k__ \
1099 || defined __m88k__ \ 1376 || defined __m88k__ \
1100 || defined __sh__ \ 1377 || defined __sh__ \
1101 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1378 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1102 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1379 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1103 || defined __aarch64__ 1380 || defined __aarch64__
1104 #define ECB_STDFP 1 1381 #define ECB_STDFP 1
1105 #include <string.h> /* for memcpy */ 1382 #include <string.h> /* for memcpy */
1106#else 1383#else
… …
1122 #define ECB_NAN NAN 1399 #define ECB_NAN NAN
1123 #else 1400 #else
1124 #define ECB_NAN ECB_INFINITY 1401 #define ECB_NAN ECB_INFINITY
1125 #endif 1402 #endif
1126 1403
1127 /* converts an ieee half/binary16 to a float */ 1404 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1128 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1405 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1129 ecb_function_ float 1406 #define ecb_frexpf(x,e) frexpf ((x), (e))
1130 ecb_binary16_to_float (uint16_t x) 1407 #else
1131 { 1408 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1132 int e = (x >> 10) & 0x1f; 1409 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1133 int m = x & 0x3ff; 1410 #endif
1134 float r;
1135
1136 if (!e ) r = ldexpf (m , -24);
1137 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1138 else if (m ) r = ECB_NAN;
1139 else r = ECB_INFINITY;
1140
1141 return x & 0x8000 ? -r : r;
1142 }
1143 1411
1144 /* convert a float to ieee single/binary32 */ 1412 /* convert a float to ieee single/binary32 */
1145 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1413 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1146 ecb_function_ uint32_t 1414 ecb_function_ ecb_const uint32_t
1147 ecb_float_to_binary32 (float x) 1415 ecb_float_to_binary32 (float x)
1148 { 1416 {
1149 uint32_t r; 1417 uint32_t r;
1150 1418
1151 #if ECB_STDFP 1419 #if ECB_STDFP
… …
1158 if (x == 0e0f ) return 0x00000000U; 1426 if (x == 0e0f ) return 0x00000000U;
1159 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1427 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1160 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1428 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1161 if (x != x ) return 0x7fbfffffU; 1429 if (x != x ) return 0x7fbfffffU;
1162 1430
1163 m = frexpf (x, &e) * 0x1000000U; 1431 m = ecb_frexpf (x, &e) * 0x1000000U;
1164 1432
1165 r = m & 0x80000000U; 1433 r = m & 0x80000000U;
1166 1434
1167 if (r) 1435 if (r)
1168 m = -m; 1436 m = -m;
… …
1180 1448
1181 return r; 1449 return r;
1182 } 1450 }
1183 1451
1184 /* converts an ieee single/binary32 to a float */ 1452 /* converts an ieee single/binary32 to a float */
1185 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1453 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1186 ecb_function_ float 1454 ecb_function_ ecb_const float
1187 ecb_binary32_to_float (uint32_t x) 1455 ecb_binary32_to_float (uint32_t x)
1188 { 1456 {
1189 float r; 1457 float r;
1190 1458
1191 #if ECB_STDFP 1459 #if ECB_STDFP
… …
1201 x |= 0x800000U; 1469 x |= 0x800000U;
1202 else 1470 else
1203 e = 1; 1471 e = 1;
1204 1472
1205 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1473 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1206 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1474 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1207 1475
1208 r = neg ? -r : r; 1476 r = neg ? -r : r;
1209 #endif 1477 #endif
1210 1478
1211 return r; 1479 return r;
1212 } 1480 }
1213 1481
1214 /* convert a double to ieee double/binary64 */ 1482 /* convert a double to ieee double/binary64 */
1215 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1483 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1216 ecb_function_ uint64_t 1484 ecb_function_ ecb_const uint64_t
1217 ecb_double_to_binary64 (double x) 1485 ecb_double_to_binary64 (double x)
1218 { 1486 {
1219 uint64_t r; 1487 uint64_t r;
1220 1488
1221 #if ECB_STDFP 1489 #if ECB_STDFP
… …
1250 1518
1251 return r; 1519 return r;
1252 } 1520 }
1253 1521
1254 /* converts an ieee double/binary64 to a double */ 1522 /* converts an ieee double/binary64 to a double */
1255 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1523 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1256 ecb_function_ double 1524 ecb_function_ ecb_const double
1257 ecb_binary64_to_double (uint64_t x) 1525 ecb_binary64_to_double (uint64_t x)
1258 { 1526 {
1259 double r; 1527 double r;
1260 1528
1261 #if ECB_STDFP 1529 #if ECB_STDFP
… …
1279 #endif 1547 #endif
1280 1548
1281 return r; 1549 return r;
1282 } 1550 }
1283 1551
1552 /* convert a float to ieee half/binary16 */
1553 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1554 ecb_function_ ecb_const uint16_t
1555 ecb_float_to_binary16 (float x)
1556 {
1557 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1558 }
1559
1560 /* convert an ieee half/binary16 to float */
1561 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1562 ecb_function_ ecb_const float
1563 ecb_binary16_to_float (uint16_t x)
1564 {
1565 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1566 }
1567
1284#endif 1568#endif
1285 1569
1286#endif 1570#endif
1287 1571
1288/* ECB.H END */ 1572/* ECB.H END */
1289 1573
1290#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1574#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1291/* if your architecture doesn't need memory fences, e.g. because it is 1575/* if your architecture doesn't need memory fences, e.g. because it is
1292 * single-cpu/core, or if you use libev in a project that doesn't use libev 1576 * single-cpu/core, or if you use libev in a project that doesn't use libev
1293 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1577 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1294 * libev, in which cases the memory fences become nops. 1578 * libev, in which cases the memory fences become nops.
1295 * alternatively, you can remove this #error and link against libpthread, 1579 * alternatively, you can remove this #error and link against libpthread,
1296 * which will then provide the memory fences. 1580 * which will then provide the memory fences.
1297 */ 1581 */
1298# error "memory fences not defined for your architecture, please report" 1582# error "memory fences not defined for your architecture, please report"
… …
1302# define ECB_MEMORY_FENCE do { } while (0) 1586# define ECB_MEMORY_FENCE do { } while (0)
1303# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1587# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1304# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1588# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1305#endif 1589#endif
1306 1590
1307#define expect_false(cond) ecb_expect_false (cond)
1308#define expect_true(cond) ecb_expect_true (cond)
1309#define noinline ecb_noinline
1310
1311#define inline_size ecb_inline 1591#define inline_size ecb_inline
1312 1592
1313#if EV_FEATURE_CODE 1593#if EV_FEATURE_CODE
1314# define inline_speed ecb_inline 1594# define inline_speed ecb_inline
1315#else 1595#else
1316# define inline_speed static noinline 1596# define inline_speed ecb_noinline static
1317#endif 1597#endif
1598
1599/*****************************************************************************/
1600/* raw syscall wrappers */
1601
1602#if EV_NEED_SYSCALL
1603
1604#include <sys/syscall.h>
1605
1606/*
1607 * define some syscall wrappers for common architectures
1608 * this is mostly for nice looks during debugging, not performance.
1609 * our syscalls return < 0, not == -1, on error. which is good
1610 * enough for linux aio.
1611 * TODO: arm is also common nowadays, maybe even mips and x86
1612 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1613 */
1614#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1615 /* the costly errno access probably kills this for size optimisation */
1616
1617 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1618 ({ \
1619 long res; \
1620 register unsigned long r6 __asm__ ("r9" ); \
1621 register unsigned long r5 __asm__ ("r8" ); \
1622 register unsigned long r4 __asm__ ("r10"); \
1623 register unsigned long r3 __asm__ ("rdx"); \
1624 register unsigned long r2 __asm__ ("rsi"); \
1625 register unsigned long r1 __asm__ ("rdi"); \
1626 if (narg >= 6) r6 = (unsigned long)(arg6); \
1627 if (narg >= 5) r5 = (unsigned long)(arg5); \
1628 if (narg >= 4) r4 = (unsigned long)(arg4); \
1629 if (narg >= 3) r3 = (unsigned long)(arg3); \
1630 if (narg >= 2) r2 = (unsigned long)(arg2); \
1631 if (narg >= 1) r1 = (unsigned long)(arg1); \
1632 __asm__ __volatile__ ( \
1633 "syscall\n\t" \
1634 : "=a" (res) \
1635 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1636 : "cc", "r11", "cx", "memory"); \
1637 errno = -res; \
1638 res; \
1639 })
1640
1641#endif
1642
1643#ifdef ev_syscall
1644 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1645 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1646 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1647 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1648 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1649 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1650 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1651#else
1652 #define ev_syscall0(nr) syscall (nr)
1653 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1654 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1655 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1656 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1657 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1658 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1659#endif
1660
1661#endif
1662
1663/*****************************************************************************/
1318 1664
1319#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1665#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1320 1666
1321#if EV_MINPRI == EV_MAXPRI 1667#if EV_MINPRI == EV_MAXPRI
1322# define ABSPRI(w) (((W)w), 0) 1668# define ABSPRI(w) (((W)w), 0)
1323#else 1669#else
1324# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1670# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1325#endif 1671#endif
1326 1672
1327#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1673#define EMPTY /* required for microsofts broken pseudo-c compiler */
1328#define EMPTY2(a,b) /* used to suppress some warnings */
1329 1674
1330typedef ev_watcher *W; 1675typedef ev_watcher *W;
1331typedef ev_watcher_list *WL; 1676typedef ev_watcher_list *WL;
1332typedef ev_watcher_time *WT; 1677typedef ev_watcher_time *WT;
1333 1678
… …
1358# include "ev_win32.c" 1703# include "ev_win32.c"
1359#endif 1704#endif
1360 1705
1361/*****************************************************************************/ 1706/*****************************************************************************/
1362 1707
1708#if EV_USE_LINUXAIO
1709# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1710#endif
1711
1363/* define a suitable floor function (only used by periodics atm) */ 1712/* define a suitable floor function (only used by periodics atm) */
1364 1713
1365#if EV_USE_FLOOR 1714#if EV_USE_FLOOR
1366# include <math.h> 1715# include <math.h>
1367# define ev_floor(v) floor (v) 1716# define ev_floor(v) floor (v)
1368#else 1717#else
1369 1718
1370#include <float.h> 1719#include <float.h>
1371 1720
1372/* a floor() replacement function, should be independent of ev_tstamp type */ 1721/* a floor() replacement function, should be independent of ev_tstamp type */
1722ecb_noinline
1373static ev_tstamp noinline 1723static ev_tstamp
1374ev_floor (ev_tstamp v) 1724ev_floor (ev_tstamp v)
1375{ 1725{
1376 /* the choice of shift factor is not terribly important */ 1726 /* the choice of shift factor is not terribly important */
1377#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1727#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1378 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1728 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1379#else 1729#else
1380 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1730 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1381#endif 1731#endif
1382 1732
1733 /* special treatment for negative arguments */
1734 if (ecb_expect_false (v < 0.))
1735 {
1736 ev_tstamp f = -ev_floor (-v);
1737
1738 return f - (f == v ? 0 : 1);
1739 }
1740
1383 /* argument too large for an unsigned long? */ 1741 /* argument too large for an unsigned long? then reduce it */
1384 if (expect_false (v >= shift)) 1742 if (ecb_expect_false (v >= shift))
1385 { 1743 {
1386 ev_tstamp f; 1744 ev_tstamp f;
1387 1745
1388 if (v == v - 1.) 1746 if (v == v - 1.)
1389 return v; /* very large number */ 1747 return v; /* very large numbers are assumed to be integer */
1390 1748
1391 f = shift * ev_floor (v * (1. / shift)); 1749 f = shift * ev_floor (v * (1. / shift));
1392 return f + ev_floor (v - f); 1750 return f + ev_floor (v - f);
1393 } 1751 }
1394 1752
1395 /* special treatment for negative args? */
1396 if (expect_false (v < 0.))
1397 {
1398 ev_tstamp f = -ev_floor (-v);
1399
1400 return f - (f == v ? 0 : 1);
1401 }
1402
1403 /* fits into an unsigned long */ 1753 /* fits into an unsigned long */
1404 return (unsigned long)v; 1754 return (unsigned long)v;
1405} 1755}
1406 1756
1407#endif 1757#endif
… …
1410 1760
1411#ifdef __linux 1761#ifdef __linux
1412# include <sys/utsname.h> 1762# include <sys/utsname.h>
1413#endif 1763#endif
1414 1764
1415static unsigned int noinline ecb_cold 1765ecb_noinline ecb_cold
1766static unsigned int
1416ev_linux_version (void) 1767ev_linux_version (void)
1417{ 1768{
1418#ifdef __linux 1769#ifdef __linux
1419 unsigned int v = 0; 1770 unsigned int v = 0;
1420 struct utsname buf; 1771 struct utsname buf;
… …
1449} 1800}
1450 1801
1451/*****************************************************************************/ 1802/*****************************************************************************/
1452 1803
1453#if EV_AVOID_STDIO 1804#if EV_AVOID_STDIO
1454static void noinline ecb_cold 1805ecb_noinline ecb_cold
1806static void
1455ev_printerr (const char *msg) 1807ev_printerr (const char *msg)
1456{ 1808{
1457 write (STDERR_FILENO, msg, strlen (msg)); 1809 write (STDERR_FILENO, msg, strlen (msg));
1458} 1810}
1459#endif 1811#endif
1460 1812
1461static void (*syserr_cb)(const char *msg) EV_THROW; 1813static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1462 1814
1463void ecb_cold 1815ecb_cold
1816void
1464ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1817ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1465{ 1818{
1466 syserr_cb = cb; 1819 syserr_cb = cb;
1467} 1820}
1468 1821
1469static void noinline ecb_cold 1822ecb_noinline ecb_cold
1823static void
1470ev_syserr (const char *msg) 1824ev_syserr (const char *msg)
1471{ 1825{
1472 if (!msg) 1826 if (!msg)
1473 msg = "(libev) system error"; 1827 msg = "(libev) system error";
1474 1828
… …
1487 abort (); 1841 abort ();
1488 } 1842 }
1489} 1843}
1490 1844
1491static void * 1845static void *
1492ev_realloc_emul (void *ptr, long size) EV_THROW 1846ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1493{ 1847{
1494 /* some systems, notably openbsd and darwin, fail to properly 1848 /* some systems, notably openbsd and darwin, fail to properly
1495 * implement realloc (x, 0) (as required by both ansi c-89 and 1849 * implement realloc (x, 0) (as required by both ansi c-89 and
1496 * the single unix specification, so work around them here. 1850 * the single unix specification, so work around them here.
1497 * recently, also (at least) fedora and debian started breaking it, 1851 * recently, also (at least) fedora and debian started breaking it,
… …
1503 1857
1504 free (ptr); 1858 free (ptr);
1505 return 0; 1859 return 0;
1506} 1860}
1507 1861
1508static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1862static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1509 1863
1510void ecb_cold 1864ecb_cold
1865void
1511ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1866ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1512{ 1867{
1513 alloc = cb; 1868 alloc = cb;
1514} 1869}
1515 1870
1516inline_speed void * 1871inline_speed void *
… …
1543typedef struct 1898typedef struct
1544{ 1899{
1545 WL head; 1900 WL head;
1546 unsigned char events; /* the events watched for */ 1901 unsigned char events; /* the events watched for */
1547 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1902 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1548 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1903 unsigned char emask; /* some backends store the actual kernel mask in here */
1549 unsigned char unused; 1904 unsigned char eflags; /* flags field for use by backends */
1550#if EV_USE_EPOLL 1905#if EV_USE_EPOLL
1551 unsigned int egen; /* generation counter to counter epoll bugs */ 1906 unsigned int egen; /* generation counter to counter epoll bugs */
1552#endif 1907#endif
1553#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1908#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1554 SOCKET handle; 1909 SOCKET handle;
… …
1618 static int ev_default_loop_ptr; 1973 static int ev_default_loop_ptr;
1619 1974
1620#endif 1975#endif
1621 1976
1622#if EV_FEATURE_API 1977#if EV_FEATURE_API
1623# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1978# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1624# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1979# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1625# define EV_INVOKE_PENDING invoke_cb (EV_A) 1980# define EV_INVOKE_PENDING invoke_cb (EV_A)
1626#else 1981#else
1627# define EV_RELEASE_CB (void)0 1982# define EV_RELEASE_CB (void)0
1628# define EV_ACQUIRE_CB (void)0 1983# define EV_ACQUIRE_CB (void)0
1629# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1984# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1633 1988
1634/*****************************************************************************/ 1989/*****************************************************************************/
1635 1990
1636#ifndef EV_HAVE_EV_TIME 1991#ifndef EV_HAVE_EV_TIME
1637ev_tstamp 1992ev_tstamp
1638ev_time (void) EV_THROW 1993ev_time (void) EV_NOEXCEPT
1639{ 1994{
1640#if EV_USE_REALTIME 1995#if EV_USE_REALTIME
1641 if (expect_true (have_realtime)) 1996 if (ecb_expect_true (have_realtime))
1642 { 1997 {
1643 struct timespec ts; 1998 struct timespec ts;
1644 clock_gettime (CLOCK_REALTIME, &ts); 1999 clock_gettime (CLOCK_REALTIME, &ts);
1645 return ts.tv_sec + ts.tv_nsec * 1e-9; 2000 return EV_TS_GET (ts);
1646 } 2001 }
1647#endif 2002#endif
1648 2003
1649 struct timeval tv; 2004 struct timeval tv;
1650 gettimeofday (&tv, 0); 2005 gettimeofday (&tv, 0);
1651 return tv.tv_sec + tv.tv_usec * 1e-6; 2006 return EV_TV_GET (tv);
1652} 2007}
1653#endif 2008#endif
1654 2009
1655inline_size ev_tstamp 2010inline_size ev_tstamp
1656get_clock (void) 2011get_clock (void)
1657{ 2012{
1658#if EV_USE_MONOTONIC 2013#if EV_USE_MONOTONIC
1659 if (expect_true (have_monotonic)) 2014 if (ecb_expect_true (have_monotonic))
1660 { 2015 {
1661 struct timespec ts; 2016 struct timespec ts;
1662 clock_gettime (CLOCK_MONOTONIC, &ts); 2017 clock_gettime (CLOCK_MONOTONIC, &ts);
1663 return ts.tv_sec + ts.tv_nsec * 1e-9; 2018 return EV_TS_GET (ts);
1664 } 2019 }
1665#endif 2020#endif
1666 2021
1667 return ev_time (); 2022 return ev_time ();
1668} 2023}
1669 2024
1670#if EV_MULTIPLICITY 2025#if EV_MULTIPLICITY
1671ev_tstamp 2026ev_tstamp
1672ev_now (EV_P) EV_THROW 2027ev_now (EV_P) EV_NOEXCEPT
1673{ 2028{
1674 return ev_rt_now; 2029 return ev_rt_now;
1675} 2030}
1676#endif 2031#endif
1677 2032
1678void 2033void
1679ev_sleep (ev_tstamp delay) EV_THROW 2034ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1680{ 2035{
1681 if (delay > 0.) 2036 if (delay > 0.)
1682 { 2037 {
1683#if EV_USE_NANOSLEEP 2038#if EV_USE_NANOSLEEP
1684 struct timespec ts; 2039 struct timespec ts;
1685 2040
1686 EV_TS_SET (ts, delay); 2041 EV_TS_SET (ts, delay);
1687 nanosleep (&ts, 0); 2042 nanosleep (&ts, 0);
1688#elif defined _WIN32 2043#elif defined _WIN32
2044 /* maybe this should round up, as ms is very low resolution */
2045 /* compared to select (µs) or nanosleep (ns) */
1689 Sleep ((unsigned long)(delay * 1e3)); 2046 Sleep ((unsigned long)(delay * 1e3));
1690#else 2047#else
1691 struct timeval tv; 2048 struct timeval tv;
1692 2049
1693 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2050 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1724 } 2081 }
1725 2082
1726 return ncur; 2083 return ncur;
1727} 2084}
1728 2085
1729static void * noinline ecb_cold 2086ecb_noinline ecb_cold
2087static void *
1730array_realloc (int elem, void *base, int *cur, int cnt) 2088array_realloc (int elem, void *base, int *cur, int cnt)
1731{ 2089{
1732 *cur = array_nextsize (elem, *cur, cnt); 2090 *cur = array_nextsize (elem, *cur, cnt);
1733 return ev_realloc (base, elem * *cur); 2091 return ev_realloc (base, elem * *cur);
1734} 2092}
1735 2093
2094#define array_needsize_noinit(base,offset,count)
2095
1736#define array_init_zero(base,count) \ 2096#define array_needsize_zerofill(base,offset,count) \
1737 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2097 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1738 2098
1739#define array_needsize(type,base,cur,cnt,init) \ 2099#define array_needsize(type,base,cur,cnt,init) \
1740 if (expect_false ((cnt) > (cur))) \ 2100 if (ecb_expect_false ((cnt) > (cur))) \
1741 { \ 2101 { \
1742 int ecb_unused ocur_ = (cur); \ 2102 ecb_unused int ocur_ = (cur); \
1743 (base) = (type *)array_realloc \ 2103 (base) = (type *)array_realloc \
1744 (sizeof (type), (base), &(cur), (cnt)); \ 2104 (sizeof (type), (base), &(cur), (cnt)); \
1745 init ((base) + (ocur_), (cur) - ocur_); \ 2105 init ((base), ocur_, ((cur) - ocur_)); \
1746 } 2106 }
1747 2107
1748#if 0 2108#if 0
1749#define array_slim(type,stem) \ 2109#define array_slim(type,stem) \
1750 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2110 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1759 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2119 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1760 2120
1761/*****************************************************************************/ 2121/*****************************************************************************/
1762 2122
1763/* dummy callback for pending events */ 2123/* dummy callback for pending events */
1764static void noinline 2124ecb_noinline
2125static void
1765pendingcb (EV_P_ ev_prepare *w, int revents) 2126pendingcb (EV_P_ ev_prepare *w, int revents)
1766{ 2127{
1767} 2128}
1768 2129
1769void noinline 2130ecb_noinline
2131void
1770ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2132ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1771{ 2133{
1772 W w_ = (W)w; 2134 W w_ = (W)w;
1773 int pri = ABSPRI (w_); 2135 int pri = ABSPRI (w_);
1774 2136
1775 if (expect_false (w_->pending)) 2137 if (ecb_expect_false (w_->pending))
1776 pendings [pri][w_->pending - 1].events |= revents; 2138 pendings [pri][w_->pending - 1].events |= revents;
1777 else 2139 else
1778 { 2140 {
1779 w_->pending = ++pendingcnt [pri]; 2141 w_->pending = ++pendingcnt [pri];
1780 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2142 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1781 pendings [pri][w_->pending - 1].w = w_; 2143 pendings [pri][w_->pending - 1].w = w_;
1782 pendings [pri][w_->pending - 1].events = revents; 2144 pendings [pri][w_->pending - 1].events = revents;
1783 } 2145 }
1784 2146
1785 pendingpri = NUMPRI - 1; 2147 pendingpri = NUMPRI - 1;
1786} 2148}
1787 2149
1788inline_speed void 2150inline_speed void
1789feed_reverse (EV_P_ W w) 2151feed_reverse (EV_P_ W w)
1790{ 2152{
1791 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2153 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1792 rfeeds [rfeedcnt++] = w; 2154 rfeeds [rfeedcnt++] = w;
1793} 2155}
1794 2156
1795inline_size void 2157inline_size void
1796feed_reverse_done (EV_P_ int revents) 2158feed_reverse_done (EV_P_ int revents)
… …
1831inline_speed void 2193inline_speed void
1832fd_event (EV_P_ int fd, int revents) 2194fd_event (EV_P_ int fd, int revents)
1833{ 2195{
1834 ANFD *anfd = anfds + fd; 2196 ANFD *anfd = anfds + fd;
1835 2197
1836 if (expect_true (!anfd->reify)) 2198 if (ecb_expect_true (!anfd->reify))
1837 fd_event_nocheck (EV_A_ fd, revents); 2199 fd_event_nocheck (EV_A_ fd, revents);
1838} 2200}
1839 2201
1840void 2202void
1841ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2203ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1842{ 2204{
1843 if (fd >= 0 && fd < anfdmax) 2205 if (fd >= 0 && fd < anfdmax)
1844 fd_event_nocheck (EV_A_ fd, revents); 2206 fd_event_nocheck (EV_A_ fd, revents);
1845} 2207}
1846 2208
… …
1883 ev_io *w; 2245 ev_io *w;
1884 2246
1885 unsigned char o_events = anfd->events; 2247 unsigned char o_events = anfd->events;
1886 unsigned char o_reify = anfd->reify; 2248 unsigned char o_reify = anfd->reify;
1887 2249
1888 anfd->reify = 0; 2250 anfd->reify = 0;
1889 2251
1890 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2252 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1891 { 2253 {
1892 anfd->events = 0; 2254 anfd->events = 0;
1893 2255
1894 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2256 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1895 anfd->events |= (unsigned char)w->events; 2257 anfd->events |= (unsigned char)w->events;
… …
1904 2266
1905 fdchangecnt = 0; 2267 fdchangecnt = 0;
1906} 2268}
1907 2269
1908/* something about the given fd changed */ 2270/* something about the given fd changed */
1909inline_size void 2271inline_size
2272void
1910fd_change (EV_P_ int fd, int flags) 2273fd_change (EV_P_ int fd, int flags)
1911{ 2274{
1912 unsigned char reify = anfds [fd].reify; 2275 unsigned char reify = anfds [fd].reify;
1913 anfds [fd].reify |= flags; 2276 anfds [fd].reify |= flags;
1914 2277
1915 if (expect_true (!reify)) 2278 if (ecb_expect_true (!reify))
1916 { 2279 {
1917 ++fdchangecnt; 2280 ++fdchangecnt;
1918 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2281 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1919 fdchanges [fdchangecnt - 1] = fd; 2282 fdchanges [fdchangecnt - 1] = fd;
1920 } 2283 }
1921} 2284}
1922 2285
1923/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2286/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1924inline_speed void ecb_cold 2287inline_speed ecb_cold void
1925fd_kill (EV_P_ int fd) 2288fd_kill (EV_P_ int fd)
1926{ 2289{
1927 ev_io *w; 2290 ev_io *w;
1928 2291
1929 while ((w = (ev_io *)anfds [fd].head)) 2292 while ((w = (ev_io *)anfds [fd].head))
… …
1932 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2295 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1933 } 2296 }
1934} 2297}
1935 2298
1936/* check whether the given fd is actually valid, for error recovery */ 2299/* check whether the given fd is actually valid, for error recovery */
1937inline_size int ecb_cold 2300inline_size ecb_cold int
1938fd_valid (int fd) 2301fd_valid (int fd)
1939{ 2302{
1940#ifdef _WIN32 2303#ifdef _WIN32
1941 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2304 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1942#else 2305#else
1943 return fcntl (fd, F_GETFD) != -1; 2306 return fcntl (fd, F_GETFD) != -1;
1944#endif 2307#endif
1945} 2308}
1946 2309
1947/* called on EBADF to verify fds */ 2310/* called on EBADF to verify fds */
1948static void noinline ecb_cold 2311ecb_noinline ecb_cold
2312static void
1949fd_ebadf (EV_P) 2313fd_ebadf (EV_P)
1950{ 2314{
1951 int fd; 2315 int fd;
1952 2316
1953 for (fd = 0; fd < anfdmax; ++fd) 2317 for (fd = 0; fd < anfdmax; ++fd)
… …
1955 if (!fd_valid (fd) && errno == EBADF) 2319 if (!fd_valid (fd) && errno == EBADF)
1956 fd_kill (EV_A_ fd); 2320 fd_kill (EV_A_ fd);
1957} 2321}
1958 2322
1959/* called on ENOMEM in select/poll to kill some fds and retry */ 2323/* called on ENOMEM in select/poll to kill some fds and retry */
1960static void noinline ecb_cold 2324ecb_noinline ecb_cold
2325static void
1961fd_enomem (EV_P) 2326fd_enomem (EV_P)
1962{ 2327{
1963 int fd; 2328 int fd;
1964 2329
1965 for (fd = anfdmax; fd--; ) 2330 for (fd = anfdmax; fd--; )
… …
1969 break; 2334 break;
1970 } 2335 }
1971} 2336}
1972 2337
1973/* usually called after fork if backend needs to re-arm all fds from scratch */ 2338/* usually called after fork if backend needs to re-arm all fds from scratch */
1974static void noinline 2339ecb_noinline
2340static void
1975fd_rearm_all (EV_P) 2341fd_rearm_all (EV_P)
1976{ 2342{
1977 int fd; 2343 int fd;
1978 2344
1979 for (fd = 0; fd < anfdmax; ++fd) 2345 for (fd = 0; fd < anfdmax; ++fd)
… …
2032 ev_tstamp minat; 2398 ev_tstamp minat;
2033 ANHE *minpos; 2399 ANHE *minpos;
2034 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2400 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2035 2401
2036 /* find minimum child */ 2402 /* find minimum child */
2037 if (expect_true (pos + DHEAP - 1 < E)) 2403 if (ecb_expect_true (pos + DHEAP - 1 < E))
2038 { 2404 {
2039 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2405 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2040 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2406 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2041 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2407 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2042 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2408 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
… …
2160 2526
2161/*****************************************************************************/ 2527/*****************************************************************************/
2162 2528
2163#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2529#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2164 2530
2165static void noinline ecb_cold 2531ecb_noinline ecb_cold
2532static void
2166evpipe_init (EV_P) 2533evpipe_init (EV_P)
2167{ 2534{
2168 if (!ev_is_active (&pipe_w)) 2535 if (!ev_is_active (&pipe_w))
2169 { 2536 {
2170 int fds [2]; 2537 int fds [2];
… …
2210inline_speed void 2577inline_speed void
2211evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2578evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2212{ 2579{
2213 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2580 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2214 2581
2215 if (expect_true (*flag)) 2582 if (ecb_expect_true (*flag))
2216 return; 2583 return;
2217 2584
2218 *flag = 1; 2585 *flag = 1;
2219 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2586 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2220 2587
… …
2241#endif 2608#endif
2242 { 2609 {
2243#ifdef _WIN32 2610#ifdef _WIN32
2244 WSABUF buf; 2611 WSABUF buf;
2245 DWORD sent; 2612 DWORD sent;
2246 buf.buf = &buf; 2613 buf.buf = (char *)&buf;
2247 buf.len = 1; 2614 buf.len = 1;
2248 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2615 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2249#else 2616#else
2250 write (evpipe [1], &(evpipe [1]), 1); 2617 write (evpipe [1], &(evpipe [1]), 1);
2251#endif 2618#endif
… …
2297 sig_pending = 0; 2664 sig_pending = 0;
2298 2665
2299 ECB_MEMORY_FENCE; 2666 ECB_MEMORY_FENCE;
2300 2667
2301 for (i = EV_NSIG - 1; i--; ) 2668 for (i = EV_NSIG - 1; i--; )
2302 if (expect_false (signals [i].pending)) 2669 if (ecb_expect_false (signals [i].pending))
2303 ev_feed_signal_event (EV_A_ i + 1); 2670 ev_feed_signal_event (EV_A_ i + 1);
2304 } 2671 }
2305#endif 2672#endif
2306 2673
2307#if EV_ASYNC_ENABLE 2674#if EV_ASYNC_ENABLE
… …
2323} 2690}
2324 2691
2325/*****************************************************************************/ 2692/*****************************************************************************/
2326 2693
2327void 2694void
2328ev_feed_signal (int signum) EV_THROW 2695ev_feed_signal (int signum) EV_NOEXCEPT
2329{ 2696{
2330#if EV_MULTIPLICITY 2697#if EV_MULTIPLICITY
2331 EV_P; 2698 EV_P;
2332 ECB_MEMORY_FENCE_ACQUIRE; 2699 ECB_MEMORY_FENCE_ACQUIRE;
2333 EV_A = signals [signum - 1].loop; 2700 EV_A = signals [signum - 1].loop;
… …
2348#endif 2715#endif
2349 2716
2350 ev_feed_signal (signum); 2717 ev_feed_signal (signum);
2351} 2718}
2352 2719
2353void noinline 2720ecb_noinline
2721void
2354ev_feed_signal_event (EV_P_ int signum) EV_THROW 2722ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2355{ 2723{
2356 WL w; 2724 WL w;
2357 2725
2358 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2726 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2359 return; 2727 return;
2360 2728
2361 --signum; 2729 --signum;
2362 2730
2363#if EV_MULTIPLICITY 2731#if EV_MULTIPLICITY
2364 /* it is permissible to try to feed a signal to the wrong loop */ 2732 /* it is permissible to try to feed a signal to the wrong loop */
2365 /* or, likely more useful, feeding a signal nobody is waiting for */ 2733 /* or, likely more useful, feeding a signal nobody is waiting for */
2366 2734
2367 if (expect_false (signals [signum].loop != EV_A)) 2735 if (ecb_expect_false (signals [signum].loop != EV_A))
2368 return; 2736 return;
2369#endif 2737#endif
2370 2738
2371 signals [signum].pending = 0; 2739 signals [signum].pending = 0;
2372 ECB_MEMORY_FENCE_RELEASE; 2740 ECB_MEMORY_FENCE_RELEASE;
… …
2468# include "ev_kqueue.c" 2836# include "ev_kqueue.c"
2469#endif 2837#endif
2470#if EV_USE_EPOLL 2838#if EV_USE_EPOLL
2471# include "ev_epoll.c" 2839# include "ev_epoll.c"
2472#endif 2840#endif
2841#if EV_USE_LINUXAIO
2842# include "ev_linuxaio.c"
2843#endif
2844#if EV_USE_IOURING
2845# include "ev_iouring.c"
2846#endif
2473#if EV_USE_POLL 2847#if EV_USE_POLL
2474# include "ev_poll.c" 2848# include "ev_poll.c"
2475#endif 2849#endif
2476#if EV_USE_SELECT 2850#if EV_USE_SELECT
2477# include "ev_select.c" 2851# include "ev_select.c"
2478#endif 2852#endif
2479 2853
2480int ecb_cold 2854ecb_cold int
2481ev_version_major (void) EV_THROW 2855ev_version_major (void) EV_NOEXCEPT
2482{ 2856{
2483 return EV_VERSION_MAJOR; 2857 return EV_VERSION_MAJOR;
2484} 2858}
2485 2859
2486int ecb_cold 2860ecb_cold int
2487ev_version_minor (void) EV_THROW 2861ev_version_minor (void) EV_NOEXCEPT
2488{ 2862{
2489 return EV_VERSION_MINOR; 2863 return EV_VERSION_MINOR;
2490} 2864}
2491 2865
2492/* return true if we are running with elevated privileges and should ignore env variables */ 2866/* return true if we are running with elevated privileges and should ignore env variables */
2493int inline_size ecb_cold 2867inline_size ecb_cold int
2494enable_secure (void) 2868enable_secure (void)
2495{ 2869{
2496#ifdef _WIN32 2870#ifdef _WIN32
2497 return 0; 2871 return 0;
2498#else 2872#else
2499 return getuid () != geteuid () 2873 return getuid () != geteuid ()
2500 || getgid () != getegid (); 2874 || getgid () != getegid ();
2501#endif 2875#endif
2502} 2876}
2503 2877
2504unsigned int ecb_cold 2878ecb_cold
2879unsigned int
2505ev_supported_backends (void) EV_THROW 2880ev_supported_backends (void) EV_NOEXCEPT
2506{ 2881{
2507 unsigned int flags = 0; 2882 unsigned int flags = 0;
2508 2883
2509 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2884 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2510 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2885 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2511 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2886 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2887 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2888 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2512 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2889 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2513 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2890 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2514 2891
2515 return flags; 2892 return flags;
2516} 2893}
2517 2894
2518unsigned int ecb_cold 2895ecb_cold
2896unsigned int
2519ev_recommended_backends (void) EV_THROW 2897ev_recommended_backends (void) EV_NOEXCEPT
2520{ 2898{
2521 unsigned int flags = ev_supported_backends (); 2899 unsigned int flags = ev_supported_backends ();
2522 2900
2523#ifndef __NetBSD__ 2901#ifndef __NetBSD__
2524 /* kqueue is borked on everything but netbsd apparently */ 2902 /* kqueue is borked on everything but netbsd apparently */
… …
2532#endif 2910#endif
2533#ifdef __FreeBSD__ 2911#ifdef __FreeBSD__
2534 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2912 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2535#endif 2913#endif
2536 2914
2915 /* TODO: linuxaio is very experimental */
2916#if !EV_RECOMMEND_LINUXAIO
2917 flags &= ~EVBACKEND_LINUXAIO;
2918#endif
2919 /* TODO: linuxaio is super experimental */
2920#if !EV_RECOMMEND_IOURING
2921 flags &= ~EVBACKEND_IOURING;
2922#endif
2923
2537 return flags; 2924 return flags;
2538} 2925}
2539 2926
2540unsigned int ecb_cold 2927ecb_cold
2928unsigned int
2541ev_embeddable_backends (void) EV_THROW 2929ev_embeddable_backends (void) EV_NOEXCEPT
2542{ 2930{
2543 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2931 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2544 2932
2545 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2933 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2546 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2934 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2547 flags &= ~EVBACKEND_EPOLL; 2935 flags &= ~EVBACKEND_EPOLL;
2548 2936
2937 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2938
2939 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2940 * because our backend_fd is the epoll fd we need as fallback.
2941 * if the kernel ever is fixed, this might change...
2942 */
2943
2549 return flags; 2944 return flags;
2550} 2945}
2551 2946
2552unsigned int 2947unsigned int
2553ev_backend (EV_P) EV_THROW 2948ev_backend (EV_P) EV_NOEXCEPT
2554{ 2949{
2555 return backend; 2950 return backend;
2556} 2951}
2557 2952
2558#if EV_FEATURE_API 2953#if EV_FEATURE_API
2559unsigned int 2954unsigned int
2560ev_iteration (EV_P) EV_THROW 2955ev_iteration (EV_P) EV_NOEXCEPT
2561{ 2956{
2562 return loop_count; 2957 return loop_count;
2563} 2958}
2564 2959
2565unsigned int 2960unsigned int
2566ev_depth (EV_P) EV_THROW 2961ev_depth (EV_P) EV_NOEXCEPT
2567{ 2962{
2568 return loop_depth; 2963 return loop_depth;
2569} 2964}
2570 2965
2571void 2966void
2572ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2967ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2573{ 2968{
2574 io_blocktime = interval; 2969 io_blocktime = interval;
2575} 2970}
2576 2971
2577void 2972void
2578ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2973ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2579{ 2974{
2580 timeout_blocktime = interval; 2975 timeout_blocktime = interval;
2581} 2976}
2582 2977
2583void 2978void
2584ev_set_userdata (EV_P_ void *data) EV_THROW 2979ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2585{ 2980{
2586 userdata = data; 2981 userdata = data;
2587} 2982}
2588 2983
2589void * 2984void *
2590ev_userdata (EV_P) EV_THROW 2985ev_userdata (EV_P) EV_NOEXCEPT
2591{ 2986{
2592 return userdata; 2987 return userdata;
2593} 2988}
2594 2989
2595void 2990void
2596ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2991ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2597{ 2992{
2598 invoke_cb = invoke_pending_cb; 2993 invoke_cb = invoke_pending_cb;
2599} 2994}
2600 2995
2601void 2996void
2602ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 2997ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2603{ 2998{
2604 release_cb = release; 2999 release_cb = release;
2605 acquire_cb = acquire; 3000 acquire_cb = acquire;
2606} 3001}
2607#endif 3002#endif
2608 3003
2609/* initialise a loop structure, must be zero-initialised */ 3004/* initialise a loop structure, must be zero-initialised */
2610static void noinline ecb_cold 3005ecb_noinline ecb_cold
3006static void
2611loop_init (EV_P_ unsigned int flags) EV_THROW 3007loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2612{ 3008{
2613 if (!backend) 3009 if (!backend)
2614 { 3010 {
2615 origflags = flags; 3011 origflags = flags;
2616 3012
… …
2674 3070
2675 if (!(flags & EVBACKEND_MASK)) 3071 if (!(flags & EVBACKEND_MASK))
2676 flags |= ev_recommended_backends (); 3072 flags |= ev_recommended_backends ();
2677 3073
2678#if EV_USE_IOCP 3074#if EV_USE_IOCP
2679 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3075 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2680#endif 3076#endif
2681#if EV_USE_PORT 3077#if EV_USE_PORT
2682 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3078 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2683#endif 3079#endif
2684#if EV_USE_KQUEUE 3080#if EV_USE_KQUEUE
2685 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3081 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3082#endif
3083#if EV_USE_IOURING
3084 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3085#endif
3086#if EV_USE_LINUXAIO
3087 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2686#endif 3088#endif
2687#if EV_USE_EPOLL 3089#if EV_USE_EPOLL
2688 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3090 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2689#endif 3091#endif
2690#if EV_USE_POLL 3092#if EV_USE_POLL
2691 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3093 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2692#endif 3094#endif
2693#if EV_USE_SELECT 3095#if EV_USE_SELECT
2694 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3096 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2695#endif 3097#endif
2696 3098
2697 ev_prepare_init (&pending_w, pendingcb); 3099 ev_prepare_init (&pending_w, pendingcb);
2698 3100
2699#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3101#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2702#endif 3104#endif
2703 } 3105 }
2704} 3106}
2705 3107
2706/* free up a loop structure */ 3108/* free up a loop structure */
2707void ecb_cold 3109ecb_cold
3110void
2708ev_loop_destroy (EV_P) 3111ev_loop_destroy (EV_P)
2709{ 3112{
2710 int i; 3113 int i;
2711 3114
2712#if EV_MULTIPLICITY 3115#if EV_MULTIPLICITY
… …
2715 return; 3118 return;
2716#endif 3119#endif
2717 3120
2718#if EV_CLEANUP_ENABLE 3121#if EV_CLEANUP_ENABLE
2719 /* queue cleanup watchers (and execute them) */ 3122 /* queue cleanup watchers (and execute them) */
2720 if (expect_false (cleanupcnt)) 3123 if (ecb_expect_false (cleanupcnt))
2721 { 3124 {
2722 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3125 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2723 EV_INVOKE_PENDING; 3126 EV_INVOKE_PENDING;
2724 } 3127 }
2725#endif 3128#endif
… …
2753 3156
2754 if (backend_fd >= 0) 3157 if (backend_fd >= 0)
2755 close (backend_fd); 3158 close (backend_fd);
2756 3159
2757#if EV_USE_IOCP 3160#if EV_USE_IOCP
2758 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3161 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2759#endif 3162#endif
2760#if EV_USE_PORT 3163#if EV_USE_PORT
2761 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3164 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2762#endif 3165#endif
2763#if EV_USE_KQUEUE 3166#if EV_USE_KQUEUE
2764 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3167 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3168#endif
3169#if EV_USE_IOURING
3170 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3171#endif
3172#if EV_USE_LINUXAIO
3173 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2765#endif 3174#endif
2766#if EV_USE_EPOLL 3175#if EV_USE_EPOLL
2767 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3176 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2768#endif 3177#endif
2769#if EV_USE_POLL 3178#if EV_USE_POLL
2770 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3179 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2771#endif 3180#endif
2772#if EV_USE_SELECT 3181#if EV_USE_SELECT
2773 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3182 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2774#endif 3183#endif
2775 3184
2776 for (i = NUMPRI; i--; ) 3185 for (i = NUMPRI; i--; )
2777 { 3186 {
2778 array_free (pending, [i]); 3187 array_free (pending, [i]);
… …
2820 3229
2821inline_size void 3230inline_size void
2822loop_fork (EV_P) 3231loop_fork (EV_P)
2823{ 3232{
2824#if EV_USE_PORT 3233#if EV_USE_PORT
2825 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3234 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2826#endif 3235#endif
2827#if EV_USE_KQUEUE 3236#if EV_USE_KQUEUE
2828 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3237 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3238#endif
3239#if EV_USE_IOURING
3240 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3241#endif
3242#if EV_USE_LINUXAIO
3243 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2829#endif 3244#endif
2830#if EV_USE_EPOLL 3245#if EV_USE_EPOLL
2831 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3246 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2832#endif 3247#endif
2833#if EV_USE_INOTIFY 3248#if EV_USE_INOTIFY
2834 infy_fork (EV_A); 3249 infy_fork (EV_A);
2835#endif 3250#endif
2836 3251
2837#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3252#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2838 if (ev_is_active (&pipe_w)) 3253 if (ev_is_active (&pipe_w) && postfork != 2)
2839 { 3254 {
2840 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3255 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2841 3256
2842 ev_ref (EV_A); 3257 ev_ref (EV_A);
2843 ev_io_stop (EV_A_ &pipe_w); 3258 ev_io_stop (EV_A_ &pipe_w);
… …
2854 postfork = 0; 3269 postfork = 0;
2855} 3270}
2856 3271
2857#if EV_MULTIPLICITY 3272#if EV_MULTIPLICITY
2858 3273
3274ecb_cold
2859struct ev_loop * ecb_cold 3275struct ev_loop *
2860ev_loop_new (unsigned int flags) EV_THROW 3276ev_loop_new (unsigned int flags) EV_NOEXCEPT
2861{ 3277{
2862 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3278 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2863 3279
2864 memset (EV_A, 0, sizeof (struct ev_loop)); 3280 memset (EV_A, 0, sizeof (struct ev_loop));
2865 loop_init (EV_A_ flags); 3281 loop_init (EV_A_ flags);
… …
2872} 3288}
2873 3289
2874#endif /* multiplicity */ 3290#endif /* multiplicity */
2875 3291
2876#if EV_VERIFY 3292#if EV_VERIFY
2877static void noinline ecb_cold 3293ecb_noinline ecb_cold
3294static void
2878verify_watcher (EV_P_ W w) 3295verify_watcher (EV_P_ W w)
2879{ 3296{
2880 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3297 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2881 3298
2882 if (w->pending) 3299 if (w->pending)
2883 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3300 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2884} 3301}
2885 3302
2886static void noinline ecb_cold 3303ecb_noinline ecb_cold
3304static void
2887verify_heap (EV_P_ ANHE *heap, int N) 3305verify_heap (EV_P_ ANHE *heap, int N)
2888{ 3306{
2889 int i; 3307 int i;
2890 3308
2891 for (i = HEAP0; i < N + HEAP0; ++i) 3309 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2896 3314
2897 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3315 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2898 } 3316 }
2899} 3317}
2900 3318
2901static void noinline ecb_cold 3319ecb_noinline ecb_cold
3320static void
2902array_verify (EV_P_ W *ws, int cnt) 3321array_verify (EV_P_ W *ws, int cnt)
2903{ 3322{
2904 while (cnt--) 3323 while (cnt--)
2905 { 3324 {
2906 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3325 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2909} 3328}
2910#endif 3329#endif
2911 3330
2912#if EV_FEATURE_API 3331#if EV_FEATURE_API
2913void ecb_cold 3332void ecb_cold
2914ev_verify (EV_P) EV_THROW 3333ev_verify (EV_P) EV_NOEXCEPT
2915{ 3334{
2916#if EV_VERIFY 3335#if EV_VERIFY
2917 int i; 3336 int i;
2918 WL w, w2; 3337 WL w, w2;
2919 3338
… …
2995#endif 3414#endif
2996} 3415}
2997#endif 3416#endif
2998 3417
2999#if EV_MULTIPLICITY 3418#if EV_MULTIPLICITY
3419ecb_cold
3000struct ev_loop * ecb_cold 3420struct ev_loop *
3001#else 3421#else
3002int 3422int
3003#endif 3423#endif
3004ev_default_loop (unsigned int flags) EV_THROW 3424ev_default_loop (unsigned int flags) EV_NOEXCEPT
3005{ 3425{
3006 if (!ev_default_loop_ptr) 3426 if (!ev_default_loop_ptr)
3007 { 3427 {
3008#if EV_MULTIPLICITY 3428#if EV_MULTIPLICITY
3009 EV_P = ev_default_loop_ptr = &default_loop_struct; 3429 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3028 3448
3029 return ev_default_loop_ptr; 3449 return ev_default_loop_ptr;
3030} 3450}
3031 3451
3032void 3452void
3033ev_loop_fork (EV_P) EV_THROW 3453ev_loop_fork (EV_P) EV_NOEXCEPT
3034{ 3454{
3035 postfork = 1; 3455 postfork = 1;
3036} 3456}
3037 3457
3038/*****************************************************************************/ 3458/*****************************************************************************/
… …
3042{ 3462{
3043 EV_CB_INVOKE ((W)w, revents); 3463 EV_CB_INVOKE ((W)w, revents);
3044} 3464}
3045 3465
3046unsigned int 3466unsigned int
3047ev_pending_count (EV_P) EV_THROW 3467ev_pending_count (EV_P) EV_NOEXCEPT
3048{ 3468{
3049 int pri; 3469 int pri;
3050 unsigned int count = 0; 3470 unsigned int count = 0;
3051 3471
3052 for (pri = NUMPRI; pri--; ) 3472 for (pri = NUMPRI; pri--; )
3053 count += pendingcnt [pri]; 3473 count += pendingcnt [pri];
3054 3474
3055 return count; 3475 return count;
3056} 3476}
3057 3477
3058void noinline 3478ecb_noinline
3479void
3059ev_invoke_pending (EV_P) 3480ev_invoke_pending (EV_P)
3060{ 3481{
3061 pendingpri = NUMPRI; 3482 pendingpri = NUMPRI;
3062 3483
3063 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3484 do
3064 { 3485 {
3065 --pendingpri; 3486 --pendingpri;
3066 3487
3488 /* pendingpri possibly gets modified in the inner loop */
3067 while (pendingcnt [pendingpri]) 3489 while (pendingcnt [pendingpri])
3068 { 3490 {
3069 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3491 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3070 3492
3071 p->w->pending = 0; 3493 p->w->pending = 0;
3072 EV_CB_INVOKE (p->w, p->events); 3494 EV_CB_INVOKE (p->w, p->events);
3073 EV_FREQUENT_CHECK; 3495 EV_FREQUENT_CHECK;
3074 } 3496 }
3075 } 3497 }
3498 while (pendingpri);
3076} 3499}
3077 3500
3078#if EV_IDLE_ENABLE 3501#if EV_IDLE_ENABLE
3079/* make idle watchers pending. this handles the "call-idle */ 3502/* make idle watchers pending. this handles the "call-idle */
3080/* only when higher priorities are idle" logic */ 3503/* only when higher priorities are idle" logic */
3081inline_size void 3504inline_size void
3082idle_reify (EV_P) 3505idle_reify (EV_P)
3083{ 3506{
3084 if (expect_false (idleall)) 3507 if (ecb_expect_false (idleall))
3085 { 3508 {
3086 int pri; 3509 int pri;
3087 3510
3088 for (pri = NUMPRI; pri--; ) 3511 for (pri = NUMPRI; pri--; )
3089 { 3512 {
… …
3138 } 3561 }
3139} 3562}
3140 3563
3141#if EV_PERIODIC_ENABLE 3564#if EV_PERIODIC_ENABLE
3142 3565
3143static void noinline 3566ecb_noinline
3567static void
3144periodic_recalc (EV_P_ ev_periodic *w) 3568periodic_recalc (EV_P_ ev_periodic *w)
3145{ 3569{
3146 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3570 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3147 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3571 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3148 3572
… …
3150 while (at <= ev_rt_now) 3574 while (at <= ev_rt_now)
3151 { 3575 {
3152 ev_tstamp nat = at + w->interval; 3576 ev_tstamp nat = at + w->interval;
3153 3577
3154 /* when resolution fails us, we use ev_rt_now */ 3578 /* when resolution fails us, we use ev_rt_now */
3155 if (expect_false (nat == at)) 3579 if (ecb_expect_false (nat == at))
3156 { 3580 {
3157 at = ev_rt_now; 3581 at = ev_rt_now;
3158 break; 3582 break;
3159 } 3583 }
3160 3584
… …
3206 } 3630 }
3207} 3631}
3208 3632
3209/* simply recalculate all periodics */ 3633/* simply recalculate all periodics */
3210/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3634/* TODO: maybe ensure that at least one event happens when jumping forward? */
3211static void noinline ecb_cold 3635ecb_noinline ecb_cold
3636static void
3212periodics_reschedule (EV_P) 3637periodics_reschedule (EV_P)
3213{ 3638{
3214 int i; 3639 int i;
3215 3640
3216 /* adjust periodics after time jump */ 3641 /* adjust periodics after time jump */
… …
3229 reheap (periodics, periodiccnt); 3654 reheap (periodics, periodiccnt);
3230} 3655}
3231#endif 3656#endif
3232 3657
3233/* adjust all timers by a given offset */ 3658/* adjust all timers by a given offset */
3234static void noinline ecb_cold 3659ecb_noinline ecb_cold
3660static void
3235timers_reschedule (EV_P_ ev_tstamp adjust) 3661timers_reschedule (EV_P_ ev_tstamp adjust)
3236{ 3662{
3237 int i; 3663 int i;
3238 3664
3239 for (i = 0; i < timercnt; ++i) 3665 for (i = 0; i < timercnt; ++i)
… …
3248/* also detect if there was a timejump, and act accordingly */ 3674/* also detect if there was a timejump, and act accordingly */
3249inline_speed void 3675inline_speed void
3250time_update (EV_P_ ev_tstamp max_block) 3676time_update (EV_P_ ev_tstamp max_block)
3251{ 3677{
3252#if EV_USE_MONOTONIC 3678#if EV_USE_MONOTONIC
3253 if (expect_true (have_monotonic)) 3679 if (ecb_expect_true (have_monotonic))
3254 { 3680 {
3255 int i; 3681 int i;
3256 ev_tstamp odiff = rtmn_diff; 3682 ev_tstamp odiff = rtmn_diff;
3257 3683
3258 mn_now = get_clock (); 3684 mn_now = get_clock ();
3259 3685
3260 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3686 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3261 /* interpolate in the meantime */ 3687 /* interpolate in the meantime */
3262 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3688 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3263 { 3689 {
3264 ev_rt_now = rtmn_diff + mn_now; 3690 ev_rt_now = rtmn_diff + mn_now;
3265 return; 3691 return;
3266 } 3692 }
3267 3693
… …
3281 ev_tstamp diff; 3707 ev_tstamp diff;
3282 rtmn_diff = ev_rt_now - mn_now; 3708 rtmn_diff = ev_rt_now - mn_now;
3283 3709
3284 diff = odiff - rtmn_diff; 3710 diff = odiff - rtmn_diff;
3285 3711
3286 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3712 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3287 return; /* all is well */ 3713 return; /* all is well */
3288 3714
3289 ev_rt_now = ev_time (); 3715 ev_rt_now = ev_time ();
3290 mn_now = get_clock (); 3716 mn_now = get_clock ();
3291 now_floor = mn_now; 3717 now_floor = mn_now;
… …
3300 else 3726 else
3301#endif 3727#endif
3302 { 3728 {
3303 ev_rt_now = ev_time (); 3729 ev_rt_now = ev_time ();
3304 3730
3305 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3731 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3306 { 3732 {
3307 /* adjust timers. this is easy, as the offset is the same for all of them */ 3733 /* adjust timers. this is easy, as the offset is the same for all of them */
3308 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3734 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3309#if EV_PERIODIC_ENABLE 3735#if EV_PERIODIC_ENABLE
3310 periodics_reschedule (EV_A); 3736 periodics_reschedule (EV_A);
… …
3333#if EV_VERIFY >= 2 3759#if EV_VERIFY >= 2
3334 ev_verify (EV_A); 3760 ev_verify (EV_A);
3335#endif 3761#endif
3336 3762
3337#ifndef _WIN32 3763#ifndef _WIN32
3338 if (expect_false (curpid)) /* penalise the forking check even more */ 3764 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3339 if (expect_false (getpid () != curpid)) 3765 if (ecb_expect_false (getpid () != curpid))
3340 { 3766 {
3341 curpid = getpid (); 3767 curpid = getpid ();
3342 postfork = 1; 3768 postfork = 1;
3343 } 3769 }
3344#endif 3770#endif
3345 3771
3346#if EV_FORK_ENABLE 3772#if EV_FORK_ENABLE
3347 /* we might have forked, so queue fork handlers */ 3773 /* we might have forked, so queue fork handlers */
3348 if (expect_false (postfork)) 3774 if (ecb_expect_false (postfork))
3349 if (forkcnt) 3775 if (forkcnt)
3350 { 3776 {
3351 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3777 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3352 EV_INVOKE_PENDING; 3778 EV_INVOKE_PENDING;
3353 } 3779 }
3354#endif 3780#endif
3355 3781
3356#if EV_PREPARE_ENABLE 3782#if EV_PREPARE_ENABLE
3357 /* queue prepare watchers (and execute them) */ 3783 /* queue prepare watchers (and execute them) */
3358 if (expect_false (preparecnt)) 3784 if (ecb_expect_false (preparecnt))
3359 { 3785 {
3360 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3786 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3361 EV_INVOKE_PENDING; 3787 EV_INVOKE_PENDING;
3362 } 3788 }
3363#endif 3789#endif
3364 3790
3365 if (expect_false (loop_done)) 3791 if (ecb_expect_false (loop_done))
3366 break; 3792 break;
3367 3793
3368 /* we might have forked, so reify kernel state if necessary */ 3794 /* we might have forked, so reify kernel state if necessary */
3369 if (expect_false (postfork)) 3795 if (ecb_expect_false (postfork))
3370 loop_fork (EV_A); 3796 loop_fork (EV_A);
3371 3797
3372 /* update fd-related kernel structures */ 3798 /* update fd-related kernel structures */
3373 fd_reify (EV_A); 3799 fd_reify (EV_A);
3374 3800
… …
3386 /* from now on, we want a pipe-wake-up */ 3812 /* from now on, we want a pipe-wake-up */
3387 pipe_write_wanted = 1; 3813 pipe_write_wanted = 1;
3388 3814
3389 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3815 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3390 3816
3391 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3817 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3392 { 3818 {
3393 waittime = MAX_BLOCKTIME; 3819 waittime = MAX_BLOCKTIME;
3394 3820
3395 if (timercnt) 3821 if (timercnt)
3396 { 3822 {
… …
3405 if (waittime > to) waittime = to; 3831 if (waittime > to) waittime = to;
3406 } 3832 }
3407#endif 3833#endif
3408 3834
3409 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3835 /* don't let timeouts decrease the waittime below timeout_blocktime */
3410 if (expect_false (waittime < timeout_blocktime)) 3836 if (ecb_expect_false (waittime < timeout_blocktime))
3411 waittime = timeout_blocktime; 3837 waittime = timeout_blocktime;
3412 3838
3413 /* at this point, we NEED to wait, so we have to ensure */ 3839 /* at this point, we NEED to wait, so we have to ensure */
3414 /* to pass a minimum nonzero value to the backend */ 3840 /* to pass a minimum nonzero value to the backend */
3415 if (expect_false (waittime < backend_mintime)) 3841 if (ecb_expect_false (waittime < backend_mintime))
3416 waittime = backend_mintime; 3842 waittime = backend_mintime;
3417 3843
3418 /* extra check because io_blocktime is commonly 0 */ 3844 /* extra check because io_blocktime is commonly 0 */
3419 if (expect_false (io_blocktime)) 3845 if (ecb_expect_false (io_blocktime))
3420 { 3846 {
3421 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3847 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3422 3848
3423 if (sleeptime > waittime - backend_mintime) 3849 if (sleeptime > waittime - backend_mintime)
3424 sleeptime = waittime - backend_mintime; 3850 sleeptime = waittime - backend_mintime;
3425 3851
3426 if (expect_true (sleeptime > 0.)) 3852 if (ecb_expect_true (sleeptime > 0.))
3427 { 3853 {
3428 ev_sleep (sleeptime); 3854 ev_sleep (sleeptime);
3429 waittime -= sleeptime; 3855 waittime -= sleeptime;
3430 } 3856 }
3431 } 3857 }
… …
3445 { 3871 {
3446 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3872 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3447 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3873 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3448 } 3874 }
3449 3875
3450
3451 /* update ev_rt_now, do magic */ 3876 /* update ev_rt_now, do magic */
3452 time_update (EV_A_ waittime + sleeptime); 3877 time_update (EV_A_ waittime + sleeptime);
3453 } 3878 }
3454 3879
3455 /* queue pending timers and reschedule them */ 3880 /* queue pending timers and reschedule them */
… …
3463 idle_reify (EV_A); 3888 idle_reify (EV_A);
3464#endif 3889#endif
3465 3890
3466#if EV_CHECK_ENABLE 3891#if EV_CHECK_ENABLE
3467 /* queue check watchers, to be executed first */ 3892 /* queue check watchers, to be executed first */
3468 if (expect_false (checkcnt)) 3893 if (ecb_expect_false (checkcnt))
3469 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3894 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3470#endif 3895#endif
3471 3896
3472 EV_INVOKE_PENDING; 3897 EV_INVOKE_PENDING;
3473 } 3898 }
3474 while (expect_true ( 3899 while (ecb_expect_true (
3475 activecnt 3900 activecnt
3476 && !loop_done 3901 && !loop_done
3477 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3902 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3478 )); 3903 ));
3479 3904
… …
3486 3911
3487 return activecnt; 3912 return activecnt;
3488} 3913}
3489 3914
3490void 3915void
3491ev_break (EV_P_ int how) EV_THROW 3916ev_break (EV_P_ int how) EV_NOEXCEPT
3492{ 3917{
3493 loop_done = how; 3918 loop_done = how;
3494} 3919}
3495 3920
3496void 3921void
3497ev_ref (EV_P) EV_THROW 3922ev_ref (EV_P) EV_NOEXCEPT
3498{ 3923{
3499 ++activecnt; 3924 ++activecnt;
3500} 3925}
3501 3926
3502void 3927void
3503ev_unref (EV_P) EV_THROW 3928ev_unref (EV_P) EV_NOEXCEPT
3504{ 3929{
3505 --activecnt; 3930 --activecnt;
3506} 3931}
3507 3932
3508void 3933void
3509ev_now_update (EV_P) EV_THROW 3934ev_now_update (EV_P) EV_NOEXCEPT
3510{ 3935{
3511 time_update (EV_A_ 1e100); 3936 time_update (EV_A_ 1e100);
3512} 3937}
3513 3938
3514void 3939void
3515ev_suspend (EV_P) EV_THROW 3940ev_suspend (EV_P) EV_NOEXCEPT
3516{ 3941{
3517 ev_now_update (EV_A); 3942 ev_now_update (EV_A);
3518} 3943}
3519 3944
3520void 3945void
3521ev_resume (EV_P) EV_THROW 3946ev_resume (EV_P) EV_NOEXCEPT
3522{ 3947{
3523 ev_tstamp mn_prev = mn_now; 3948 ev_tstamp mn_prev = mn_now;
3524 3949
3525 ev_now_update (EV_A); 3950 ev_now_update (EV_A);
3526 timers_reschedule (EV_A_ mn_now - mn_prev); 3951 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3543inline_size void 3968inline_size void
3544wlist_del (WL *head, WL elem) 3969wlist_del (WL *head, WL elem)
3545{ 3970{
3546 while (*head) 3971 while (*head)
3547 { 3972 {
3548 if (expect_true (*head == elem)) 3973 if (ecb_expect_true (*head == elem))
3549 { 3974 {
3550 *head = elem->next; 3975 *head = elem->next;
3551 break; 3976 break;
3552 } 3977 }
3553 3978
… …
3565 w->pending = 0; 3990 w->pending = 0;
3566 } 3991 }
3567} 3992}
3568 3993
3569int 3994int
3570ev_clear_pending (EV_P_ void *w) EV_THROW 3995ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3571{ 3996{
3572 W w_ = (W)w; 3997 W w_ = (W)w;
3573 int pending = w_->pending; 3998 int pending = w_->pending;
3574 3999
3575 if (expect_true (pending)) 4000 if (ecb_expect_true (pending))
3576 { 4001 {
3577 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4002 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3578 p->w = (W)&pending_w; 4003 p->w = (W)&pending_w;
3579 w_->pending = 0; 4004 w_->pending = 0;
3580 return p->events; 4005 return p->events;
… …
3607 w->active = 0; 4032 w->active = 0;
3608} 4033}
3609 4034
3610/*****************************************************************************/ 4035/*****************************************************************************/
3611 4036
3612void noinline 4037ecb_noinline
4038void
3613ev_io_start (EV_P_ ev_io *w) EV_THROW 4039ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3614{ 4040{
3615 int fd = w->fd; 4041 int fd = w->fd;
3616 4042
3617 if (expect_false (ev_is_active (w))) 4043 if (ecb_expect_false (ev_is_active (w)))
3618 return; 4044 return;
3619 4045
3620 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4046 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3621 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4047 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3622 4048
4049#if EV_VERIFY >= 2
4050 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4051#endif
3623 EV_FREQUENT_CHECK; 4052 EV_FREQUENT_CHECK;
3624 4053
3625 ev_start (EV_A_ (W)w, 1); 4054 ev_start (EV_A_ (W)w, 1);
3626 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4055 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3627 wlist_add (&anfds[fd].head, (WL)w); 4056 wlist_add (&anfds[fd].head, (WL)w);
3628 4057
3629 /* common bug, apparently */ 4058 /* common bug, apparently */
3630 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4059 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3631 4060
… …
3633 w->events &= ~EV__IOFDSET; 4062 w->events &= ~EV__IOFDSET;
3634 4063
3635 EV_FREQUENT_CHECK; 4064 EV_FREQUENT_CHECK;
3636} 4065}
3637 4066
3638void noinline 4067ecb_noinline
4068void
3639ev_io_stop (EV_P_ ev_io *w) EV_THROW 4069ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3640{ 4070{
3641 clear_pending (EV_A_ (W)w); 4071 clear_pending (EV_A_ (W)w);
3642 if (expect_false (!ev_is_active (w))) 4072 if (ecb_expect_false (!ev_is_active (w)))
3643 return; 4073 return;
3644 4074
3645 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4075 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3646 4076
4077#if EV_VERIFY >= 2
4078 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4079#endif
3647 EV_FREQUENT_CHECK; 4080 EV_FREQUENT_CHECK;
3648 4081
3649 wlist_del (&anfds[w->fd].head, (WL)w); 4082 wlist_del (&anfds[w->fd].head, (WL)w);
3650 ev_stop (EV_A_ (W)w); 4083 ev_stop (EV_A_ (W)w);
3651 4084
3652 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4085 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3653 4086
3654 EV_FREQUENT_CHECK; 4087 EV_FREQUENT_CHECK;
3655} 4088}
3656 4089
3657void noinline 4090ecb_noinline
4091void
3658ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4092ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3659{ 4093{
3660 if (expect_false (ev_is_active (w))) 4094 if (ecb_expect_false (ev_is_active (w)))
3661 return; 4095 return;
3662 4096
3663 ev_at (w) += mn_now; 4097 ev_at (w) += mn_now;
3664 4098
3665 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4099 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3666 4100
3667 EV_FREQUENT_CHECK; 4101 EV_FREQUENT_CHECK;
3668 4102
3669 ++timercnt; 4103 ++timercnt;
3670 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4104 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3671 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4105 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3672 ANHE_w (timers [ev_active (w)]) = (WT)w; 4106 ANHE_w (timers [ev_active (w)]) = (WT)w;
3673 ANHE_at_cache (timers [ev_active (w)]); 4107 ANHE_at_cache (timers [ev_active (w)]);
3674 upheap (timers, ev_active (w)); 4108 upheap (timers, ev_active (w));
3675 4109
3676 EV_FREQUENT_CHECK; 4110 EV_FREQUENT_CHECK;
3677 4111
3678 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4112 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3679} 4113}
3680 4114
3681void noinline 4115ecb_noinline
4116void
3682ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4117ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3683{ 4118{
3684 clear_pending (EV_A_ (W)w); 4119 clear_pending (EV_A_ (W)w);
3685 if (expect_false (!ev_is_active (w))) 4120 if (ecb_expect_false (!ev_is_active (w)))
3686 return; 4121 return;
3687 4122
3688 EV_FREQUENT_CHECK; 4123 EV_FREQUENT_CHECK;
3689 4124
3690 { 4125 {
… …
3692 4127
3693 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4128 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3694 4129
3695 --timercnt; 4130 --timercnt;
3696 4131
3697 if (expect_true (active < timercnt + HEAP0)) 4132 if (ecb_expect_true (active < timercnt + HEAP0))
3698 { 4133 {
3699 timers [active] = timers [timercnt + HEAP0]; 4134 timers [active] = timers [timercnt + HEAP0];
3700 adjustheap (timers, timercnt, active); 4135 adjustheap (timers, timercnt, active);
3701 } 4136 }
3702 } 4137 }
… …
3706 ev_stop (EV_A_ (W)w); 4141 ev_stop (EV_A_ (W)w);
3707 4142
3708 EV_FREQUENT_CHECK; 4143 EV_FREQUENT_CHECK;
3709} 4144}
3710 4145
3711void noinline 4146ecb_noinline
4147void
3712ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4148ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3713{ 4149{
3714 EV_FREQUENT_CHECK; 4150 EV_FREQUENT_CHECK;
3715 4151
3716 clear_pending (EV_A_ (W)w); 4152 clear_pending (EV_A_ (W)w);
3717 4153
… …
3734 4170
3735 EV_FREQUENT_CHECK; 4171 EV_FREQUENT_CHECK;
3736} 4172}
3737 4173
3738ev_tstamp 4174ev_tstamp
3739ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4175ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3740{ 4176{
3741 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4177 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3742} 4178}
3743 4179
3744#if EV_PERIODIC_ENABLE 4180#if EV_PERIODIC_ENABLE
3745void noinline 4181ecb_noinline
4182void
3746ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4183ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3747{ 4184{
3748 if (expect_false (ev_is_active (w))) 4185 if (ecb_expect_false (ev_is_active (w)))
3749 return; 4186 return;
3750 4187
3751 if (w->reschedule_cb) 4188 if (w->reschedule_cb)
3752 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4189 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3753 else if (w->interval) 4190 else if (w->interval)
… …
3760 4197
3761 EV_FREQUENT_CHECK; 4198 EV_FREQUENT_CHECK;
3762 4199
3763 ++periodiccnt; 4200 ++periodiccnt;
3764 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4201 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3765 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4202 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3766 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4203 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3767 ANHE_at_cache (periodics [ev_active (w)]); 4204 ANHE_at_cache (periodics [ev_active (w)]);
3768 upheap (periodics, ev_active (w)); 4205 upheap (periodics, ev_active (w));
3769 4206
3770 EV_FREQUENT_CHECK; 4207 EV_FREQUENT_CHECK;
3771 4208
3772 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4209 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3773} 4210}
3774 4211
3775void noinline 4212ecb_noinline
4213void
3776ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4214ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3777{ 4215{
3778 clear_pending (EV_A_ (W)w); 4216 clear_pending (EV_A_ (W)w);
3779 if (expect_false (!ev_is_active (w))) 4217 if (ecb_expect_false (!ev_is_active (w)))
3780 return; 4218 return;
3781 4219
3782 EV_FREQUENT_CHECK; 4220 EV_FREQUENT_CHECK;
3783 4221
3784 { 4222 {
… …
3786 4224
3787 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4225 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3788 4226
3789 --periodiccnt; 4227 --periodiccnt;
3790 4228
3791 if (expect_true (active < periodiccnt + HEAP0)) 4229 if (ecb_expect_true (active < periodiccnt + HEAP0))
3792 { 4230 {
3793 periodics [active] = periodics [periodiccnt + HEAP0]; 4231 periodics [active] = periodics [periodiccnt + HEAP0];
3794 adjustheap (periodics, periodiccnt, active); 4232 adjustheap (periodics, periodiccnt, active);
3795 } 4233 }
3796 } 4234 }
… …
3798 ev_stop (EV_A_ (W)w); 4236 ev_stop (EV_A_ (W)w);
3799 4237
3800 EV_FREQUENT_CHECK; 4238 EV_FREQUENT_CHECK;
3801} 4239}
3802 4240
3803void noinline 4241ecb_noinline
4242void
3804ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4243ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3805{ 4244{
3806 /* TODO: use adjustheap and recalculation */ 4245 /* TODO: use adjustheap and recalculation */
3807 ev_periodic_stop (EV_A_ w); 4246 ev_periodic_stop (EV_A_ w);
3808 ev_periodic_start (EV_A_ w); 4247 ev_periodic_start (EV_A_ w);
3809} 4248}
… …
3813# define SA_RESTART 0 4252# define SA_RESTART 0
3814#endif 4253#endif
3815 4254
3816#if EV_SIGNAL_ENABLE 4255#if EV_SIGNAL_ENABLE
3817 4256
3818void noinline 4257ecb_noinline
4258void
3819ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4259ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3820{ 4260{
3821 if (expect_false (ev_is_active (w))) 4261 if (ecb_expect_false (ev_is_active (w)))
3822 return; 4262 return;
3823 4263
3824 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4264 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3825 4265
3826#if EV_MULTIPLICITY 4266#if EV_MULTIPLICITY
… …
3895 } 4335 }
3896 4336
3897 EV_FREQUENT_CHECK; 4337 EV_FREQUENT_CHECK;
3898} 4338}
3899 4339
3900void noinline 4340ecb_noinline
4341void
3901ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4342ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3902{ 4343{
3903 clear_pending (EV_A_ (W)w); 4344 clear_pending (EV_A_ (W)w);
3904 if (expect_false (!ev_is_active (w))) 4345 if (ecb_expect_false (!ev_is_active (w)))
3905 return; 4346 return;
3906 4347
3907 EV_FREQUENT_CHECK; 4348 EV_FREQUENT_CHECK;
3908 4349
3909 wlist_del (&signals [w->signum - 1].head, (WL)w); 4350 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3937#endif 4378#endif
3938 4379
3939#if EV_CHILD_ENABLE 4380#if EV_CHILD_ENABLE
3940 4381
3941void 4382void
3942ev_child_start (EV_P_ ev_child *w) EV_THROW 4383ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3943{ 4384{
3944#if EV_MULTIPLICITY 4385#if EV_MULTIPLICITY
3945 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4386 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3946#endif 4387#endif
3947 if (expect_false (ev_is_active (w))) 4388 if (ecb_expect_false (ev_is_active (w)))
3948 return; 4389 return;
3949 4390
3950 EV_FREQUENT_CHECK; 4391 EV_FREQUENT_CHECK;
3951 4392
3952 ev_start (EV_A_ (W)w, 1); 4393 ev_start (EV_A_ (W)w, 1);
… …
3954 4395
3955 EV_FREQUENT_CHECK; 4396 EV_FREQUENT_CHECK;
3956} 4397}
3957 4398
3958void 4399void
3959ev_child_stop (EV_P_ ev_child *w) EV_THROW 4400ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3960{ 4401{
3961 clear_pending (EV_A_ (W)w); 4402 clear_pending (EV_A_ (W)w);
3962 if (expect_false (!ev_is_active (w))) 4403 if (ecb_expect_false (!ev_is_active (w)))
3963 return; 4404 return;
3964 4405
3965 EV_FREQUENT_CHECK; 4406 EV_FREQUENT_CHECK;
3966 4407
3967 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4408 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3981 4422
3982#define DEF_STAT_INTERVAL 5.0074891 4423#define DEF_STAT_INTERVAL 5.0074891
3983#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4424#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3984#define MIN_STAT_INTERVAL 0.1074891 4425#define MIN_STAT_INTERVAL 0.1074891
3985 4426
3986static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4427ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3987 4428
3988#if EV_USE_INOTIFY 4429#if EV_USE_INOTIFY
3989 4430
3990/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4431/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3991# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4432# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3992 4433
3993static void noinline 4434ecb_noinline
4435static void
3994infy_add (EV_P_ ev_stat *w) 4436infy_add (EV_P_ ev_stat *w)
3995{ 4437{
3996 w->wd = inotify_add_watch (fs_fd, w->path, 4438 w->wd = inotify_add_watch (fs_fd, w->path,
3997 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4439 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3998 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4440 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4062 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4504 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4063 ev_timer_again (EV_A_ &w->timer); 4505 ev_timer_again (EV_A_ &w->timer);
4064 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4506 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4065} 4507}
4066 4508
4067static void noinline 4509ecb_noinline
4510static void
4068infy_del (EV_P_ ev_stat *w) 4511infy_del (EV_P_ ev_stat *w)
4069{ 4512{
4070 int slot; 4513 int slot;
4071 int wd = w->wd; 4514 int wd = w->wd;
4072 4515
… …
4079 4522
4080 /* remove this watcher, if others are watching it, they will rearm */ 4523 /* remove this watcher, if others are watching it, they will rearm */
4081 inotify_rm_watch (fs_fd, wd); 4524 inotify_rm_watch (fs_fd, wd);
4082} 4525}
4083 4526
4084static void noinline 4527ecb_noinline
4528static void
4085infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4529infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4086{ 4530{
4087 if (slot < 0) 4531 if (slot < 0)
4088 /* overflow, need to check for all hash slots */ 4532 /* overflow, need to check for all hash slots */
4089 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4533 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4125 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4569 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4126 ofs += sizeof (struct inotify_event) + ev->len; 4570 ofs += sizeof (struct inotify_event) + ev->len;
4127 } 4571 }
4128} 4572}
4129 4573
4130inline_size void ecb_cold 4574inline_size ecb_cold
4575void
4131ev_check_2625 (EV_P) 4576ev_check_2625 (EV_P)
4132{ 4577{
4133 /* kernels < 2.6.25 are borked 4578 /* kernels < 2.6.25 are borked
4134 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4579 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4135 */ 4580 */
… …
4225#else 4670#else
4226# define EV_LSTAT(p,b) lstat (p, b) 4671# define EV_LSTAT(p,b) lstat (p, b)
4227#endif 4672#endif
4228 4673
4229void 4674void
4230ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4675ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4231{ 4676{
4232 if (lstat (w->path, &w->attr) < 0) 4677 if (lstat (w->path, &w->attr) < 0)
4233 w->attr.st_nlink = 0; 4678 w->attr.st_nlink = 0;
4234 else if (!w->attr.st_nlink) 4679 else if (!w->attr.st_nlink)
4235 w->attr.st_nlink = 1; 4680 w->attr.st_nlink = 1;
4236} 4681}
4237 4682
4238static void noinline 4683ecb_noinline
4684static void
4239stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4685stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4240{ 4686{
4241 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4687 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4242 4688
4243 ev_statdata prev = w->attr; 4689 ev_statdata prev = w->attr;
… …
4274 ev_feed_event (EV_A_ w, EV_STAT); 4720 ev_feed_event (EV_A_ w, EV_STAT);
4275 } 4721 }
4276} 4722}
4277 4723
4278void 4724void
4279ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4725ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4280{ 4726{
4281 if (expect_false (ev_is_active (w))) 4727 if (ecb_expect_false (ev_is_active (w)))
4282 return; 4728 return;
4283 4729
4284 ev_stat_stat (EV_A_ w); 4730 ev_stat_stat (EV_A_ w);
4285 4731
4286 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4732 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4305 4751
4306 EV_FREQUENT_CHECK; 4752 EV_FREQUENT_CHECK;
4307} 4753}
4308 4754
4309void 4755void
4310ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4756ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4311{ 4757{
4312 clear_pending (EV_A_ (W)w); 4758 clear_pending (EV_A_ (W)w);
4313 if (expect_false (!ev_is_active (w))) 4759 if (ecb_expect_false (!ev_is_active (w)))
4314 return; 4760 return;
4315 4761
4316 EV_FREQUENT_CHECK; 4762 EV_FREQUENT_CHECK;
4317 4763
4318#if EV_USE_INOTIFY 4764#if EV_USE_INOTIFY
… …
4331} 4777}
4332#endif 4778#endif
4333 4779
4334#if EV_IDLE_ENABLE 4780#if EV_IDLE_ENABLE
4335void 4781void
4336ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4782ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4337{ 4783{
4338 if (expect_false (ev_is_active (w))) 4784 if (ecb_expect_false (ev_is_active (w)))
4339 return; 4785 return;
4340 4786
4341 pri_adjust (EV_A_ (W)w); 4787 pri_adjust (EV_A_ (W)w);
4342 4788
4343 EV_FREQUENT_CHECK; 4789 EV_FREQUENT_CHECK;
… …
4346 int active = ++idlecnt [ABSPRI (w)]; 4792 int active = ++idlecnt [ABSPRI (w)];
4347 4793
4348 ++idleall; 4794 ++idleall;
4349 ev_start (EV_A_ (W)w, active); 4795 ev_start (EV_A_ (W)w, active);
4350 4796
4351 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4797 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4352 idles [ABSPRI (w)][active - 1] = w; 4798 idles [ABSPRI (w)][active - 1] = w;
4353 } 4799 }
4354 4800
4355 EV_FREQUENT_CHECK; 4801 EV_FREQUENT_CHECK;
4356} 4802}
4357 4803
4358void 4804void
4359ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4805ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4360{ 4806{
4361 clear_pending (EV_A_ (W)w); 4807 clear_pending (EV_A_ (W)w);
4362 if (expect_false (!ev_is_active (w))) 4808 if (ecb_expect_false (!ev_is_active (w)))
4363 return; 4809 return;
4364 4810
4365 EV_FREQUENT_CHECK; 4811 EV_FREQUENT_CHECK;
4366 4812
4367 { 4813 {
… …
4378} 4824}
4379#endif 4825#endif
4380 4826
4381#if EV_PREPARE_ENABLE 4827#if EV_PREPARE_ENABLE
4382void 4828void
4383ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4829ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4384{ 4830{
4385 if (expect_false (ev_is_active (w))) 4831 if (ecb_expect_false (ev_is_active (w)))
4386 return; 4832 return;
4387 4833
4388 EV_FREQUENT_CHECK; 4834 EV_FREQUENT_CHECK;
4389 4835
4390 ev_start (EV_A_ (W)w, ++preparecnt); 4836 ev_start (EV_A_ (W)w, ++preparecnt);
4391 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4837 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4392 prepares [preparecnt - 1] = w; 4838 prepares [preparecnt - 1] = w;
4393 4839
4394 EV_FREQUENT_CHECK; 4840 EV_FREQUENT_CHECK;
4395} 4841}
4396 4842
4397void 4843void
4398ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4844ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4399{ 4845{
4400 clear_pending (EV_A_ (W)w); 4846 clear_pending (EV_A_ (W)w);
4401 if (expect_false (!ev_is_active (w))) 4847 if (ecb_expect_false (!ev_is_active (w)))
4402 return; 4848 return;
4403 4849
4404 EV_FREQUENT_CHECK; 4850 EV_FREQUENT_CHECK;
4405 4851
4406 { 4852 {
… …
4416} 4862}
4417#endif 4863#endif
4418 4864
4419#if EV_CHECK_ENABLE 4865#if EV_CHECK_ENABLE
4420void 4866void
4421ev_check_start (EV_P_ ev_check *w) EV_THROW 4867ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4422{ 4868{
4423 if (expect_false (ev_is_active (w))) 4869 if (ecb_expect_false (ev_is_active (w)))
4424 return; 4870 return;
4425 4871
4426 EV_FREQUENT_CHECK; 4872 EV_FREQUENT_CHECK;
4427 4873
4428 ev_start (EV_A_ (W)w, ++checkcnt); 4874 ev_start (EV_A_ (W)w, ++checkcnt);
4429 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4875 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4430 checks [checkcnt - 1] = w; 4876 checks [checkcnt - 1] = w;
4431 4877
4432 EV_FREQUENT_CHECK; 4878 EV_FREQUENT_CHECK;
4433} 4879}
4434 4880
4435void 4881void
4436ev_check_stop (EV_P_ ev_check *w) EV_THROW 4882ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4437{ 4883{
4438 clear_pending (EV_A_ (W)w); 4884 clear_pending (EV_A_ (W)w);
4439 if (expect_false (!ev_is_active (w))) 4885 if (ecb_expect_false (!ev_is_active (w)))
4440 return; 4886 return;
4441 4887
4442 EV_FREQUENT_CHECK; 4888 EV_FREQUENT_CHECK;
4443 4889
4444 { 4890 {
… …
4453 EV_FREQUENT_CHECK; 4899 EV_FREQUENT_CHECK;
4454} 4900}
4455#endif 4901#endif
4456 4902
4457#if EV_EMBED_ENABLE 4903#if EV_EMBED_ENABLE
4458void noinline 4904ecb_noinline
4905void
4459ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4906ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4460{ 4907{
4461 ev_run (w->other, EVRUN_NOWAIT); 4908 ev_run (w->other, EVRUN_NOWAIT);
4462} 4909}
4463 4910
4464static void 4911static void
… …
4512 ev_idle_stop (EV_A_ idle); 4959 ev_idle_stop (EV_A_ idle);
4513} 4960}
4514#endif 4961#endif
4515 4962
4516void 4963void
4517ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4964ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4518{ 4965{
4519 if (expect_false (ev_is_active (w))) 4966 if (ecb_expect_false (ev_is_active (w)))
4520 return; 4967 return;
4521 4968
4522 { 4969 {
4523 EV_P = w->other; 4970 EV_P = w->other;
4524 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4971 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4543 4990
4544 EV_FREQUENT_CHECK; 4991 EV_FREQUENT_CHECK;
4545} 4992}
4546 4993
4547void 4994void
4548ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4995ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4549{ 4996{
4550 clear_pending (EV_A_ (W)w); 4997 clear_pending (EV_A_ (W)w);
4551 if (expect_false (!ev_is_active (w))) 4998 if (ecb_expect_false (!ev_is_active (w)))
4552 return; 4999 return;
4553 5000
4554 EV_FREQUENT_CHECK; 5001 EV_FREQUENT_CHECK;
4555 5002
4556 ev_io_stop (EV_A_ &w->io); 5003 ev_io_stop (EV_A_ &w->io);
… …
4563} 5010}
4564#endif 5011#endif
4565 5012
4566#if EV_FORK_ENABLE 5013#if EV_FORK_ENABLE
4567void 5014void
4568ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5015ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4569{ 5016{
4570 if (expect_false (ev_is_active (w))) 5017 if (ecb_expect_false (ev_is_active (w)))
4571 return; 5018 return;
4572 5019
4573 EV_FREQUENT_CHECK; 5020 EV_FREQUENT_CHECK;
4574 5021
4575 ev_start (EV_A_ (W)w, ++forkcnt); 5022 ev_start (EV_A_ (W)w, ++forkcnt);
4576 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5023 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4577 forks [forkcnt - 1] = w; 5024 forks [forkcnt - 1] = w;
4578 5025
4579 EV_FREQUENT_CHECK; 5026 EV_FREQUENT_CHECK;
4580} 5027}
4581 5028
4582void 5029void
4583ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5030ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4584{ 5031{
4585 clear_pending (EV_A_ (W)w); 5032 clear_pending (EV_A_ (W)w);
4586 if (expect_false (!ev_is_active (w))) 5033 if (ecb_expect_false (!ev_is_active (w)))
4587 return; 5034 return;
4588 5035
4589 EV_FREQUENT_CHECK; 5036 EV_FREQUENT_CHECK;
4590 5037
4591 { 5038 {
… …
4601} 5048}
4602#endif 5049#endif
4603 5050
4604#if EV_CLEANUP_ENABLE 5051#if EV_CLEANUP_ENABLE
4605void 5052void
4606ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5053ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4607{ 5054{
4608 if (expect_false (ev_is_active (w))) 5055 if (ecb_expect_false (ev_is_active (w)))
4609 return; 5056 return;
4610 5057
4611 EV_FREQUENT_CHECK; 5058 EV_FREQUENT_CHECK;
4612 5059
4613 ev_start (EV_A_ (W)w, ++cleanupcnt); 5060 ev_start (EV_A_ (W)w, ++cleanupcnt);
4614 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5061 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4615 cleanups [cleanupcnt - 1] = w; 5062 cleanups [cleanupcnt - 1] = w;
4616 5063
4617 /* cleanup watchers should never keep a refcount on the loop */ 5064 /* cleanup watchers should never keep a refcount on the loop */
4618 ev_unref (EV_A); 5065 ev_unref (EV_A);
4619 EV_FREQUENT_CHECK; 5066 EV_FREQUENT_CHECK;
4620} 5067}
4621 5068
4622void 5069void
4623ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5070ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4624{ 5071{
4625 clear_pending (EV_A_ (W)w); 5072 clear_pending (EV_A_ (W)w);
4626 if (expect_false (!ev_is_active (w))) 5073 if (ecb_expect_false (!ev_is_active (w)))
4627 return; 5074 return;
4628 5075
4629 EV_FREQUENT_CHECK; 5076 EV_FREQUENT_CHECK;
4630 ev_ref (EV_A); 5077 ev_ref (EV_A);
4631 5078
… …
4642} 5089}
4643#endif 5090#endif
4644 5091
4645#if EV_ASYNC_ENABLE 5092#if EV_ASYNC_ENABLE
4646void 5093void
4647ev_async_start (EV_P_ ev_async *w) EV_THROW 5094ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4648{ 5095{
4649 if (expect_false (ev_is_active (w))) 5096 if (ecb_expect_false (ev_is_active (w)))
4650 return; 5097 return;
4651 5098
4652 w->sent = 0; 5099 w->sent = 0;
4653 5100
4654 evpipe_init (EV_A); 5101 evpipe_init (EV_A);
4655 5102
4656 EV_FREQUENT_CHECK; 5103 EV_FREQUENT_CHECK;
4657 5104
4658 ev_start (EV_A_ (W)w, ++asynccnt); 5105 ev_start (EV_A_ (W)w, ++asynccnt);
4659 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5106 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4660 asyncs [asynccnt - 1] = w; 5107 asyncs [asynccnt - 1] = w;
4661 5108
4662 EV_FREQUENT_CHECK; 5109 EV_FREQUENT_CHECK;
4663} 5110}
4664 5111
4665void 5112void
4666ev_async_stop (EV_P_ ev_async *w) EV_THROW 5113ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4667{ 5114{
4668 clear_pending (EV_A_ (W)w); 5115 clear_pending (EV_A_ (W)w);
4669 if (expect_false (!ev_is_active (w))) 5116 if (ecb_expect_false (!ev_is_active (w)))
4670 return; 5117 return;
4671 5118
4672 EV_FREQUENT_CHECK; 5119 EV_FREQUENT_CHECK;
4673 5120
4674 { 5121 {
… …
4682 5129
4683 EV_FREQUENT_CHECK; 5130 EV_FREQUENT_CHECK;
4684} 5131}
4685 5132
4686void 5133void
4687ev_async_send (EV_P_ ev_async *w) EV_THROW 5134ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4688{ 5135{
4689 w->sent = 1; 5136 w->sent = 1;
4690 evpipe_write (EV_A_ &async_pending); 5137 evpipe_write (EV_A_ &async_pending);
4691} 5138}
4692#endif 5139#endif
… …
4729 5176
4730 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5177 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4731} 5178}
4732 5179
4733void 5180void
4734ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5181ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4735{ 5182{
4736 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5183 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4737
4738 if (expect_false (!once))
4739 {
4740 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4741 return;
4742 }
4743 5184
4744 once->cb = cb; 5185 once->cb = cb;
4745 once->arg = arg; 5186 once->arg = arg;
4746 5187
4747 ev_init (&once->io, once_cb_io); 5188 ev_init (&once->io, once_cb_io);
… …
4760} 5201}
4761 5202
4762/*****************************************************************************/ 5203/*****************************************************************************/
4763 5204
4764#if EV_WALK_ENABLE 5205#if EV_WALK_ENABLE
4765void ecb_cold 5206ecb_cold
5207void
4766ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5208ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4767{ 5209{
4768 int i, j; 5210 int i, j;
4769 ev_watcher_list *wl, *wn; 5211 ev_watcher_list *wl, *wn;
4770 5212
4771 if (types & (EV_IO | EV_EMBED)) 5213 if (types & (EV_IO | EV_EMBED))

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