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Comparing libev/ev.c (file contents):
Revision 1.468 by root, Fri Sep 5 16:00:17 2014 UTC vs.
Revision 1.510 by root, Wed Aug 28 09:45:49 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 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) */
478 540
541/* find a portable timestamp that is "always" in the future but fits into time_t.
542 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
543 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
544#define EV_TSTAMP_HUGE \
545 (sizeof (time_t) >= 8 ? 10000000000000. \
546 : 0 < (time_t)4294967295 ? 4294967295. \
547 : 2147483647.) \
548
549#ifndef EV_TS_CONST
550# define EV_TS_CONST(nv) nv
551# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
552# define EV_TS_FROM_USEC(us) us * 1e-6
479#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 553# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
480#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 554# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
555# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
556# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
557#endif
481 558
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 559/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */ 560/* ECB.H BEGIN */
484/* 561/*
485 * libecb - http://software.schmorp.de/pkg/libecb 562 * libecb - http://software.schmorp.de/pkg/libecb
486 * 563 *
487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> 564 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 565 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 566 * All rights reserved.
490 * 567 *
491 * Redistribution and use in source and binary forms, with or without modifica- 568 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met: 569 * tion, are permitted provided that the following conditions are met:
… …
523 600
524#ifndef ECB_H 601#ifndef ECB_H
525#define ECB_H 602#define ECB_H
526 603
527/* 16 bits major, 16 bits minor */ 604/* 16 bits major, 16 bits minor */
528#define ECB_VERSION 0x00010003 605#define ECB_VERSION 0x00010006
529 606
530#ifdef _WIN32 607#ifdef _WIN32
531 typedef signed char int8_t; 608 typedef signed char int8_t;
532 typedef unsigned char uint8_t; 609 typedef unsigned char uint8_t;
533 typedef signed short int16_t; 610 typedef signed short int16_t;
… …
550 typedef uint32_t uintptr_t; 627 typedef uint32_t uintptr_t;
551 typedef int32_t intptr_t; 628 typedef int32_t intptr_t;
552 #endif 629 #endif
553#else 630#else
554 #include <inttypes.h> 631 #include <inttypes.h>
555 #if UINTMAX_MAX > 0xffffffffU 632 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
556 #define ECB_PTRSIZE 8 633 #define ECB_PTRSIZE 8
557 #else 634 #else
558 #define ECB_PTRSIZE 4 635 #define ECB_PTRSIZE 4
559 #endif 636 #endif
560#endif 637#endif
561 638
639#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
640#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
641
562/* work around x32 idiocy by defining proper macros */ 642/* work around x32 idiocy by defining proper macros */
563#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 643#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
564 #if _ILP32 644 #if _ILP32
565 #define ECB_AMD64_X32 1 645 #define ECB_AMD64_X32 1
566 #else 646 #else
567 #define ECB_AMD64 1 647 #define ECB_AMD64 1
568 #endif 648 #endif
… …
573 * causing enormous grief in return for some better fake benchmark numbers. 653 * causing enormous grief in return for some better fake benchmark numbers.
574 * or so. 654 * or so.
575 * we try to detect these and simply assume they are not gcc - if they have 655 * we try to detect these and simply assume they are not gcc - if they have
576 * an issue with that they should have done it right in the first place. 656 * an issue with that they should have done it right in the first place.
577 */ 657 */
578#ifndef ECB_GCC_VERSION
579 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 658#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
580 #define ECB_GCC_VERSION(major,minor) 0 659 #define ECB_GCC_VERSION(major,minor) 0
581 #else 660#else
582 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 661 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
583 #endif 662#endif
663
664#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
665
666#if __clang__ && defined __has_builtin
667 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
668#else
669 #define ECB_CLANG_BUILTIN(x) 0
670#endif
671
672#if __clang__ && defined __has_extension
673 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
674#else
675 #define ECB_CLANG_EXTENSION(x) 0
584#endif 676#endif
585 677
586#define ECB_CPP (__cplusplus+0) 678#define ECB_CPP (__cplusplus+0)
587#define ECB_CPP11 (__cplusplus >= 201103L) 679#define ECB_CPP11 (__cplusplus >= 201103L)
680#define ECB_CPP14 (__cplusplus >= 201402L)
681#define ECB_CPP17 (__cplusplus >= 201703L)
588 682
589#if ECB_CPP 683#if ECB_CPP
590 #define ECB_C 0 684 #define ECB_C 0
591 #define ECB_STDC_VERSION 0 685 #define ECB_STDC_VERSION 0
592#else 686#else
… …
594 #define ECB_STDC_VERSION __STDC_VERSION__ 688 #define ECB_STDC_VERSION __STDC_VERSION__
595#endif 689#endif
596 690
597#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 691#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
598#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 692#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
693#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
599 694
600#if ECB_CPP 695#if ECB_CPP
601 #define ECB_EXTERN_C extern "C" 696 #define ECB_EXTERN_C extern "C"
602 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 697 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
603 #define ECB_EXTERN_C_END } 698 #define ECB_EXTERN_C_END }
… …
618 713
619#if ECB_NO_SMP 714#if ECB_NO_SMP
620 #define ECB_MEMORY_FENCE do { } while (0) 715 #define ECB_MEMORY_FENCE do { } while (0)
621#endif 716#endif
622 717
718/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
719#if __xlC__ && ECB_CPP
720 #include <builtins.h>
721#endif
722
723#if 1400 <= _MSC_VER
724 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
725#endif
726
623#ifndef ECB_MEMORY_FENCE 727#ifndef ECB_MEMORY_FENCE
624 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 728 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
729 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
625 #if __i386 || __i386__ 730 #if __i386 || __i386__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 731 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 732 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 733 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
629 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 734 #elif ECB_GCC_AMD64
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 735 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
631 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 736 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
632 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 737 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
633 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 738 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 739 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
740 #elif defined __ARM_ARCH_2__ \
741 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
742 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
743 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
744 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
745 || defined __ARM_ARCH_5TEJ__
746 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
635 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 747 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
636 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 748 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
749 || defined __ARM_ARCH_6T2__
637 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 750 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
638 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 751 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
639 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 752 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 753 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
641 #elif __aarch64__ 754 #elif __aarch64__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 755 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
643 #elif (__sparc || __sparc__) && !__sparcv8 756 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 757 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
645 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 758 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
646 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 759 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
647 #elif defined __s390__ || defined __s390x__ 760 #elif defined __s390__ || defined __s390x__
648 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 761 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
671 #if ECB_GCC_VERSION(4,7) 784 #if ECB_GCC_VERSION(4,7)
672 /* see comment below (stdatomic.h) about the C11 memory model. */ 785 /* see comment below (stdatomic.h) about the C11 memory model. */
673 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 786 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
674 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 787 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
675 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 788 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
789 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
676 790
677 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 791 #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. 792 /* see comment below (stdatomic.h) about the C11 memory model. */
683 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 793 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
684 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 794 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
685 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 795 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
686 */ 796 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
687 797
688 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 798 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
689 #define ECB_MEMORY_FENCE __sync_synchronize () 799 #define ECB_MEMORY_FENCE __sync_synchronize ()
690 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 800 #elif _MSC_VER >= 1500 /* VC++ 2008 */
691 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 801 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
701 #elif defined _WIN32 811 #elif defined _WIN32
702 #include <WinNT.h> 812 #include <WinNT.h>
703 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 813 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
704 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 814 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
705 #include <mbarrier.h> 815 #include <mbarrier.h>
706 #define ECB_MEMORY_FENCE __machine_rw_barrier () 816 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
707 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 817 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
708 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 818 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
819 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
709 #elif __xlC__ 820 #elif __xlC__
710 #define ECB_MEMORY_FENCE __sync () 821 #define ECB_MEMORY_FENCE __sync ()
711 #endif 822 #endif
712#endif 823#endif
713 824
714#ifndef ECB_MEMORY_FENCE 825#ifndef ECB_MEMORY_FENCE
715 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 826 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
716 /* we assume that these memory fences work on all variables/all memory accesses, */ 827 /* we assume that these memory fences work on all variables/all memory accesses, */
717 /* not just C11 atomics and atomic accesses */ 828 /* not just C11 atomics and atomic accesses */
718 #include <stdatomic.h> 829 #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) 830 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
831 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
832 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
728 #endif 833 #endif
729#endif 834#endif
730 835
731#ifndef ECB_MEMORY_FENCE 836#ifndef ECB_MEMORY_FENCE
732 #if !ECB_AVOID_PTHREADS 837 #if !ECB_AVOID_PTHREADS
… …
752 857
753#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 858#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
754 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 859 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
755#endif 860#endif
756 861
862#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
863 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
864#endif
865
757/*****************************************************************************/ 866/*****************************************************************************/
758 867
759#if __cplusplus 868#if ECB_CPP
760 #define ecb_inline static inline 869 #define ecb_inline static inline
761#elif ECB_GCC_VERSION(2,5) 870#elif ECB_GCC_VERSION(2,5)
762 #define ecb_inline static __inline__ 871 #define ecb_inline static __inline__
763#elif ECB_C99 872#elif ECB_C99
764 #define ecb_inline static inline 873 #define ecb_inline static inline
… …
778 887
779#define ECB_CONCAT_(a, b) a ## b 888#define ECB_CONCAT_(a, b) a ## b
780#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 889#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
781#define ECB_STRINGIFY_(a) # a 890#define ECB_STRINGIFY_(a) # a
782#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 891#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
892#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
783 893
784#define ecb_function_ ecb_inline 894#define ecb_function_ ecb_inline
785 895
786#if ECB_GCC_VERSION(3,1) 896#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
787 #define ecb_attribute(attrlist) __attribute__(attrlist) 897 #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 898#else
792 #define ecb_attribute(attrlist) 899 #define ecb_attribute(attrlist)
900#endif
793 901
902#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
903 #define ecb_is_constant(expr) __builtin_constant_p (expr)
904#else
794 /* possible C11 impl for integral types 905 /* possible C11 impl for integral types
795 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 906 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)) */ 907 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
797 908
798 #define ecb_is_constant(expr) 0 909 #define ecb_is_constant(expr) 0
910#endif
911
912#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
913 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
914#else
799 #define ecb_expect(expr,value) (expr) 915 #define ecb_expect(expr,value) (expr)
916#endif
917
918#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
919 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
920#else
800 #define ecb_prefetch(addr,rw,locality) 921 #define ecb_prefetch(addr,rw,locality)
801#endif 922#endif
802 923
803/* no emulation for ecb_decltype */ 924/* no emulation for ecb_decltype */
804#if ECB_GCC_VERSION(4,5) 925#if ECB_CPP11
926 // older implementations might have problems with decltype(x)::type, work around it
927 template<class T> struct ecb_decltype_t { typedef T type; };
805 #define ecb_decltype(x) __decltype(x) 928 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
806#elif ECB_GCC_VERSION(3,0) 929#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
807 #define ecb_decltype(x) __typeof(x) 930 #define ecb_decltype(x) __typeof__ (x)
808#endif 931#endif
809 932
810#if _MSC_VER >= 1300 933#if _MSC_VER >= 1300
811 #define ecb_deprecated __declspec(deprecated) 934 #define ecb_deprecated __declspec (deprecated)
812#else 935#else
813 #define ecb_deprecated ecb_attribute ((__deprecated__)) 936 #define ecb_deprecated ecb_attribute ((__deprecated__))
814#endif 937#endif
815 938
939#if _MSC_VER >= 1500
940 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
941#elif ECB_GCC_VERSION(4,5)
942 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
943#else
944 #define ecb_deprecated_message(msg) ecb_deprecated
945#endif
946
947#if _MSC_VER >= 1400
948 #define ecb_noinline __declspec (noinline)
949#else
816#define ecb_noinline ecb_attribute ((__noinline__)) 950 #define ecb_noinline ecb_attribute ((__noinline__))
951#endif
952
817#define ecb_unused ecb_attribute ((__unused__)) 953#define ecb_unused ecb_attribute ((__unused__))
818#define ecb_const ecb_attribute ((__const__)) 954#define ecb_const ecb_attribute ((__const__))
819#define ecb_pure ecb_attribute ((__pure__)) 955#define ecb_pure ecb_attribute ((__pure__))
820 956
821/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ 957#if ECB_C11 || __IBMC_NORETURN
822#if ECB_C11 958 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
823 #define ecb_noreturn _Noreturn 959 #define ecb_noreturn _Noreturn
960#elif ECB_CPP11
961 #define ecb_noreturn [[noreturn]]
962#elif _MSC_VER >= 1200
963 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
964 #define ecb_noreturn __declspec (noreturn)
824#else 965#else
825 #define ecb_noreturn ecb_attribute ((__noreturn__)) 966 #define ecb_noreturn ecb_attribute ((__noreturn__))
826#endif 967#endif
827 968
828#if ECB_GCC_VERSION(4,3) 969#if ECB_GCC_VERSION(4,3)
… …
843/* for compatibility to the rest of the world */ 984/* for compatibility to the rest of the world */
844#define ecb_likely(expr) ecb_expect_true (expr) 985#define ecb_likely(expr) ecb_expect_true (expr)
845#define ecb_unlikely(expr) ecb_expect_false (expr) 986#define ecb_unlikely(expr) ecb_expect_false (expr)
846 987
847/* count trailing zero bits and count # of one bits */ 988/* count trailing zero bits and count # of one bits */
848#if ECB_GCC_VERSION(3,4) 989#if ECB_GCC_VERSION(3,4) \
990 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
991 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
992 && ECB_CLANG_BUILTIN(__builtin_popcount))
849 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 993 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
850 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 994 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
851 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 995 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
852 #define ecb_ctz32(x) __builtin_ctz (x) 996 #define ecb_ctz32(x) __builtin_ctz (x)
853 #define ecb_ctz64(x) __builtin_ctzll (x) 997 #define ecb_ctz64(x) __builtin_ctzll (x)
854 #define ecb_popcount32(x) __builtin_popcount (x) 998 #define ecb_popcount32(x) __builtin_popcount (x)
855 /* no popcountll */ 999 /* no popcountll */
856#else 1000#else
857 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1001 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
858 ecb_function_ int 1002 ecb_function_ ecb_const int
859 ecb_ctz32 (uint32_t x) 1003 ecb_ctz32 (uint32_t x)
860 { 1004 {
1005#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1006 unsigned long r;
1007 _BitScanForward (&r, x);
1008 return (int)r;
1009#else
861 int r = 0; 1010 int r = 0;
862 1011
863 x &= ~x + 1; /* this isolates the lowest bit */ 1012 x &= ~x + 1; /* this isolates the lowest bit */
864 1013
865#if ECB_branchless_on_i386 1014#if ECB_branchless_on_i386
… …
875 if (x & 0xff00ff00) r += 8; 1024 if (x & 0xff00ff00) r += 8;
876 if (x & 0xffff0000) r += 16; 1025 if (x & 0xffff0000) r += 16;
877#endif 1026#endif
878 1027
879 return r; 1028 return r;
1029#endif
880 } 1030 }
881 1031
882 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1032 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
883 ecb_function_ int 1033 ecb_function_ ecb_const int
884 ecb_ctz64 (uint64_t x) 1034 ecb_ctz64 (uint64_t x)
885 { 1035 {
1036#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1037 unsigned long r;
1038 _BitScanForward64 (&r, x);
1039 return (int)r;
1040#else
886 int shift = x & 0xffffffffU ? 0 : 32; 1041 int shift = x & 0xffffffff ? 0 : 32;
887 return ecb_ctz32 (x >> shift) + shift; 1042 return ecb_ctz32 (x >> shift) + shift;
1043#endif
888 } 1044 }
889 1045
890 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1046 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
891 ecb_function_ int 1047 ecb_function_ ecb_const int
892 ecb_popcount32 (uint32_t x) 1048 ecb_popcount32 (uint32_t x)
893 { 1049 {
894 x -= (x >> 1) & 0x55555555; 1050 x -= (x >> 1) & 0x55555555;
895 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1051 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
896 x = ((x >> 4) + x) & 0x0f0f0f0f; 1052 x = ((x >> 4) + x) & 0x0f0f0f0f;
897 x *= 0x01010101; 1053 x *= 0x01010101;
898 1054
899 return x >> 24; 1055 return x >> 24;
900 } 1056 }
901 1057
902 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1058 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
903 ecb_function_ int ecb_ld32 (uint32_t x) 1059 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
904 { 1060 {
1061#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1062 unsigned long r;
1063 _BitScanReverse (&r, x);
1064 return (int)r;
1065#else
905 int r = 0; 1066 int r = 0;
906 1067
907 if (x >> 16) { x >>= 16; r += 16; } 1068 if (x >> 16) { x >>= 16; r += 16; }
908 if (x >> 8) { x >>= 8; r += 8; } 1069 if (x >> 8) { x >>= 8; r += 8; }
909 if (x >> 4) { x >>= 4; r += 4; } 1070 if (x >> 4) { x >>= 4; r += 4; }
910 if (x >> 2) { x >>= 2; r += 2; } 1071 if (x >> 2) { x >>= 2; r += 2; }
911 if (x >> 1) { r += 1; } 1072 if (x >> 1) { r += 1; }
912 1073
913 return r; 1074 return r;
1075#endif
914 } 1076 }
915 1077
916 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1078 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
917 ecb_function_ int ecb_ld64 (uint64_t x) 1079 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
918 { 1080 {
1081#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1082 unsigned long r;
1083 _BitScanReverse64 (&r, x);
1084 return (int)r;
1085#else
919 int r = 0; 1086 int r = 0;
920 1087
921 if (x >> 32) { x >>= 32; r += 32; } 1088 if (x >> 32) { x >>= 32; r += 32; }
922 1089
923 return r + ecb_ld32 (x); 1090 return r + ecb_ld32 (x);
1091#endif
924 } 1092 }
925#endif 1093#endif
926 1094
927ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1095ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
928ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1096ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
929ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1097ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
930ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1098ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
931 1099
932ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1100ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
933ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1101ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
934{ 1102{
935 return ( (x * 0x0802U & 0x22110U) 1103 return ( (x * 0x0802U & 0x22110U)
936 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1104 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
937} 1105}
938 1106
939ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1107ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
940ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1108ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
941{ 1109{
942 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1110 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
943 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1111 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
944 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1112 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
945 x = ( x >> 8 ) | ( x << 8); 1113 x = ( x >> 8 ) | ( x << 8);
946 1114
947 return x; 1115 return x;
948} 1116}
949 1117
950ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1118ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
951ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1119ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
952{ 1120{
953 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1121 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
954 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1122 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
955 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1123 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
956 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1124 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
959 return x; 1127 return x;
960} 1128}
961 1129
962/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1130/* popcount64 is only available on 64 bit cpus as gcc builtin */
963/* so for this version we are lazy */ 1131/* so for this version we are lazy */
964ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1132ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
965ecb_function_ int 1133ecb_function_ ecb_const int
966ecb_popcount64 (uint64_t x) 1134ecb_popcount64 (uint64_t x)
967{ 1135{
968 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1136 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
969} 1137}
970 1138
971ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1139ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
972ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1140ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
973ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1141ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
974ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1142ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
975ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1143ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
976ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1144ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
977ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1145ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
978ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1146ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
979 1147
980ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1148ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
981ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1149ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
982ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1150ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
983ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1151ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
984ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1152ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
985ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1153ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
986ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1154ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
987ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1155ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
988 1156
989#if ECB_GCC_VERSION(4,3) 1157#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1158 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1159 #define ecb_bswap16(x) __builtin_bswap16 (x)
1160 #else
990 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1161 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1162 #endif
991 #define ecb_bswap32(x) __builtin_bswap32 (x) 1163 #define ecb_bswap32(x) __builtin_bswap32 (x)
992 #define ecb_bswap64(x) __builtin_bswap64 (x) 1164 #define ecb_bswap64(x) __builtin_bswap64 (x)
1165#elif _MSC_VER
1166 #include <stdlib.h>
1167 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1168 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1169 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
993#else 1170#else
994 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1171 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
995 ecb_function_ uint16_t 1172 ecb_function_ ecb_const uint16_t
996 ecb_bswap16 (uint16_t x) 1173 ecb_bswap16 (uint16_t x)
997 { 1174 {
998 return ecb_rotl16 (x, 8); 1175 return ecb_rotl16 (x, 8);
999 } 1176 }
1000 1177
1001 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1178 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1002 ecb_function_ uint32_t 1179 ecb_function_ ecb_const uint32_t
1003 ecb_bswap32 (uint32_t x) 1180 ecb_bswap32 (uint32_t x)
1004 { 1181 {
1005 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1182 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1006 } 1183 }
1007 1184
1008 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1185 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1009 ecb_function_ uint64_t 1186 ecb_function_ ecb_const uint64_t
1010 ecb_bswap64 (uint64_t x) 1187 ecb_bswap64 (uint64_t x)
1011 { 1188 {
1012 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1189 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1013 } 1190 }
1014#endif 1191#endif
1015 1192
1016#if ECB_GCC_VERSION(4,5) 1193#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1017 #define ecb_unreachable() __builtin_unreachable () 1194 #define ecb_unreachable() __builtin_unreachable ()
1018#else 1195#else
1019 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1196 /* this seems to work fine, but gcc always emits a warning for it :/ */
1020 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1197 ecb_inline ecb_noreturn void ecb_unreachable (void);
1021 ecb_inline void ecb_unreachable (void) { } 1198 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1022#endif 1199#endif
1023 1200
1024/* try to tell the compiler that some condition is definitely true */ 1201/* try to tell the compiler that some condition is definitely true */
1025#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1202#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1026 1203
1027ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1204ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1028ecb_inline unsigned char 1205ecb_inline ecb_const uint32_t
1029ecb_byteorder_helper (void) 1206ecb_byteorder_helper (void)
1030{ 1207{
1031 /* the union code still generates code under pressure in gcc, */ 1208 /* the union code still generates code under pressure in gcc, */
1032 /* but less than using pointers, and always seems to */ 1209 /* but less than using pointers, and always seems to */
1033 /* successfully return a constant. */ 1210 /* successfully return a constant. */
1034 /* the reason why we have this horrible preprocessor mess */ 1211 /* the reason why we have this horrible preprocessor mess */
1035 /* is to avoid it in all cases, at least on common architectures */ 1212 /* is to avoid it in all cases, at least on common architectures */
1036 /* or when using a recent enough gcc version (>= 4.6) */ 1213 /* or when using a recent enough gcc version (>= 4.6) */
1037#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1038 return 0x44;
1039#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1214#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1215 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1216 #define ECB_LITTLE_ENDIAN 1
1040 return 0x44; 1217 return 0x44332211;
1041#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1218#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1219 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1220 #define ECB_BIG_ENDIAN 1
1042 return 0x11; 1221 return 0x11223344;
1043#else 1222#else
1044 union 1223 union
1045 { 1224 {
1225 uint8_t c[4];
1046 uint32_t i; 1226 uint32_t u;
1047 uint8_t c;
1048 } u = { 0x11223344 }; 1227 } u = { 0x11, 0x22, 0x33, 0x44 };
1049 return u.c; 1228 return u.u;
1050#endif 1229#endif
1051} 1230}
1052 1231
1053ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1232ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1054ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1233ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1055ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1234ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1056ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1235ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1057 1236
1058#if ECB_GCC_VERSION(3,0) || ECB_C99 1237#if ECB_GCC_VERSION(3,0) || ECB_C99
1059 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1238 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1060#else 1239#else
1061 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1240 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1062#endif 1241#endif
1063 1242
1064#if __cplusplus 1243#if ECB_CPP
1065 template<typename T> 1244 template<typename T>
1066 static inline T ecb_div_rd (T val, T div) 1245 static inline T ecb_div_rd (T val, T div)
1067 { 1246 {
1068 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1247 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1069 } 1248 }
… …
1086 } 1265 }
1087#else 1266#else
1088 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1267 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1089#endif 1268#endif
1090 1269
1270ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1271ecb_function_ ecb_const uint32_t
1272ecb_binary16_to_binary32 (uint32_t x)
1273{
1274 unsigned int s = (x & 0x8000) << (31 - 15);
1275 int e = (x >> 10) & 0x001f;
1276 unsigned int m = x & 0x03ff;
1277
1278 if (ecb_expect_false (e == 31))
1279 /* infinity or NaN */
1280 e = 255 - (127 - 15);
1281 else if (ecb_expect_false (!e))
1282 {
1283 if (ecb_expect_true (!m))
1284 /* zero, handled by code below by forcing e to 0 */
1285 e = 0 - (127 - 15);
1286 else
1287 {
1288 /* subnormal, renormalise */
1289 unsigned int s = 10 - ecb_ld32 (m);
1290
1291 m = (m << s) & 0x3ff; /* mask implicit bit */
1292 e -= s - 1;
1293 }
1294 }
1295
1296 /* e and m now are normalised, or zero, (or inf or nan) */
1297 e += 127 - 15;
1298
1299 return s | (e << 23) | (m << (23 - 10));
1300}
1301
1302ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1303ecb_function_ ecb_const uint16_t
1304ecb_binary32_to_binary16 (uint32_t x)
1305{
1306 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1307 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1308 unsigned int m = x & 0x007fffff;
1309
1310 x &= 0x7fffffff;
1311
1312 /* if it's within range of binary16 normals, use fast path */
1313 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1314 {
1315 /* mantissa round-to-even */
1316 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1317
1318 /* handle overflow */
1319 if (ecb_expect_false (m >= 0x00800000))
1320 {
1321 m >>= 1;
1322 e += 1;
1323 }
1324
1325 return s | (e << 10) | (m >> (23 - 10));
1326 }
1327
1328 /* handle large numbers and infinity */
1329 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1330 return s | 0x7c00;
1331
1332 /* handle zero, subnormals and small numbers */
1333 if (ecb_expect_true (x < 0x38800000))
1334 {
1335 /* zero */
1336 if (ecb_expect_true (!x))
1337 return s;
1338
1339 /* handle subnormals */
1340
1341 /* too small, will be zero */
1342 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1343 return s;
1344
1345 m |= 0x00800000; /* make implicit bit explicit */
1346
1347 /* very tricky - we need to round to the nearest e (+10) bit value */
1348 {
1349 unsigned int bits = 14 - e;
1350 unsigned int half = (1 << (bits - 1)) - 1;
1351 unsigned int even = (m >> bits) & 1;
1352
1353 /* if this overflows, we will end up with a normalised number */
1354 m = (m + half + even) >> bits;
1355 }
1356
1357 return s | m;
1358 }
1359
1360 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1361 m >>= 13;
1362
1363 return s | 0x7c00 | m | !m;
1364}
1365
1091/*******************************************************************************/ 1366/*******************************************************************************/
1092/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1367/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1093 1368
1094/* basically, everything uses "ieee pure-endian" floating point numbers */ 1369/* basically, everything uses "ieee pure-endian" floating point numbers */
1095/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1370/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1096#if 0 \ 1371#if 0 \
1097 || __i386 || __i386__ \ 1372 || __i386 || __i386__ \
1098 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1373 || ECB_GCC_AMD64 \
1099 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1374 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1100 || defined __s390__ || defined __s390x__ \ 1375 || defined __s390__ || defined __s390x__ \
1101 || defined __mips__ \ 1376 || defined __mips__ \
1102 || defined __alpha__ \ 1377 || defined __alpha__ \
1103 || defined __hppa__ \ 1378 || defined __hppa__ \
1104 || defined __ia64__ \ 1379 || defined __ia64__ \
1105 || defined __m68k__ \ 1380 || defined __m68k__ \
1106 || defined __m88k__ \ 1381 || defined __m88k__ \
1107 || defined __sh__ \ 1382 || defined __sh__ \
1108 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1383 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1109 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1384 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1110 || defined __aarch64__ 1385 || defined __aarch64__
1111 #define ECB_STDFP 1 1386 #define ECB_STDFP 1
1112 #include <string.h> /* for memcpy */ 1387 #include <string.h> /* for memcpy */
1113#else 1388#else
… …
1129 #define ECB_NAN NAN 1404 #define ECB_NAN NAN
1130 #else 1405 #else
1131 #define ECB_NAN ECB_INFINITY 1406 #define ECB_NAN ECB_INFINITY
1132 #endif 1407 #endif
1133 1408
1134 /* converts an ieee half/binary16 to a float */ 1409 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1135 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1410 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1136 ecb_function_ float 1411 #define ecb_frexpf(x,e) frexpf ((x), (e))
1137 ecb_binary16_to_float (uint16_t x) 1412 #else
1138 { 1413 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1139 int e = (x >> 10) & 0x1f; 1414 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1140 int m = x & 0x3ff; 1415 #endif
1141 float r;
1142
1143 if (!e ) r = ldexpf (m , -24);
1144 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1145 else if (m ) r = ECB_NAN;
1146 else r = ECB_INFINITY;
1147
1148 return x & 0x8000 ? -r : r;
1149 }
1150 1416
1151 /* convert a float to ieee single/binary32 */ 1417 /* convert a float to ieee single/binary32 */
1152 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1418 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1153 ecb_function_ uint32_t 1419 ecb_function_ ecb_const uint32_t
1154 ecb_float_to_binary32 (float x) 1420 ecb_float_to_binary32 (float x)
1155 { 1421 {
1156 uint32_t r; 1422 uint32_t r;
1157 1423
1158 #if ECB_STDFP 1424 #if ECB_STDFP
… …
1165 if (x == 0e0f ) return 0x00000000U; 1431 if (x == 0e0f ) return 0x00000000U;
1166 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1432 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1167 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1433 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1168 if (x != x ) return 0x7fbfffffU; 1434 if (x != x ) return 0x7fbfffffU;
1169 1435
1170 m = frexpf (x, &e) * 0x1000000U; 1436 m = ecb_frexpf (x, &e) * 0x1000000U;
1171 1437
1172 r = m & 0x80000000U; 1438 r = m & 0x80000000U;
1173 1439
1174 if (r) 1440 if (r)
1175 m = -m; 1441 m = -m;
… …
1187 1453
1188 return r; 1454 return r;
1189 } 1455 }
1190 1456
1191 /* converts an ieee single/binary32 to a float */ 1457 /* converts an ieee single/binary32 to a float */
1192 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1458 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1193 ecb_function_ float 1459 ecb_function_ ecb_const float
1194 ecb_binary32_to_float (uint32_t x) 1460 ecb_binary32_to_float (uint32_t x)
1195 { 1461 {
1196 float r; 1462 float r;
1197 1463
1198 #if ECB_STDFP 1464 #if ECB_STDFP
… …
1208 x |= 0x800000U; 1474 x |= 0x800000U;
1209 else 1475 else
1210 e = 1; 1476 e = 1;
1211 1477
1212 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1478 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1213 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1479 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1214 1480
1215 r = neg ? -r : r; 1481 r = neg ? -r : r;
1216 #endif 1482 #endif
1217 1483
1218 return r; 1484 return r;
1219 } 1485 }
1220 1486
1221 /* convert a double to ieee double/binary64 */ 1487 /* convert a double to ieee double/binary64 */
1222 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1488 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1223 ecb_function_ uint64_t 1489 ecb_function_ ecb_const uint64_t
1224 ecb_double_to_binary64 (double x) 1490 ecb_double_to_binary64 (double x)
1225 { 1491 {
1226 uint64_t r; 1492 uint64_t r;
1227 1493
1228 #if ECB_STDFP 1494 #if ECB_STDFP
… …
1257 1523
1258 return r; 1524 return r;
1259 } 1525 }
1260 1526
1261 /* converts an ieee double/binary64 to a double */ 1527 /* converts an ieee double/binary64 to a double */
1262 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1528 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1263 ecb_function_ double 1529 ecb_function_ ecb_const double
1264 ecb_binary64_to_double (uint64_t x) 1530 ecb_binary64_to_double (uint64_t x)
1265 { 1531 {
1266 double r; 1532 double r;
1267 1533
1268 #if ECB_STDFP 1534 #if ECB_STDFP
… …
1286 #endif 1552 #endif
1287 1553
1288 return r; 1554 return r;
1289 } 1555 }
1290 1556
1557 /* convert a float to ieee half/binary16 */
1558 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1559 ecb_function_ ecb_const uint16_t
1560 ecb_float_to_binary16 (float x)
1561 {
1562 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1563 }
1564
1565 /* convert an ieee half/binary16 to float */
1566 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1567 ecb_function_ ecb_const float
1568 ecb_binary16_to_float (uint16_t x)
1569 {
1570 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1571 }
1572
1291#endif 1573#endif
1292 1574
1293#endif 1575#endif
1294 1576
1295/* ECB.H END */ 1577/* ECB.H END */
1296 1578
1297#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1579#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1298/* if your architecture doesn't need memory fences, e.g. because it is 1580/* if your architecture doesn't need memory fences, e.g. because it is
1299 * single-cpu/core, or if you use libev in a project that doesn't use libev 1581 * single-cpu/core, or if you use libev in a project that doesn't use libev
1300 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1582 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1301 * libev, in which cases the memory fences become nops. 1583 * libev, in which cases the memory fences become nops.
1302 * alternatively, you can remove this #error and link against libpthread, 1584 * alternatively, you can remove this #error and link against libpthread,
1303 * which will then provide the memory fences. 1585 * which will then provide the memory fences.
1304 */ 1586 */
1305# error "memory fences not defined for your architecture, please report" 1587# error "memory fences not defined for your architecture, please report"
… …
1309# define ECB_MEMORY_FENCE do { } while (0) 1591# define ECB_MEMORY_FENCE do { } while (0)
1310# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1592# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1311# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1593# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1312#endif 1594#endif
1313 1595
1314#define expect_false(cond) ecb_expect_false (cond)
1315#define expect_true(cond) ecb_expect_true (cond)
1316#define noinline ecb_noinline
1317
1318#define inline_size ecb_inline 1596#define inline_size ecb_inline
1319 1597
1320#if EV_FEATURE_CODE 1598#if EV_FEATURE_CODE
1321# define inline_speed ecb_inline 1599# define inline_speed ecb_inline
1322#else 1600#else
1323# define inline_speed static noinline 1601# define inline_speed ecb_noinline static
1324#endif 1602#endif
1603
1604/*****************************************************************************/
1605/* raw syscall wrappers */
1606
1607#if EV_NEED_SYSCALL
1608
1609#include <sys/syscall.h>
1610
1611/*
1612 * define some syscall wrappers for common architectures
1613 * this is mostly for nice looks during debugging, not performance.
1614 * our syscalls return < 0, not == -1, on error. which is good
1615 * enough for linux aio.
1616 * TODO: arm is also common nowadays, maybe even mips and x86
1617 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1618 */
1619#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1620 /* the costly errno access probably kills this for size optimisation */
1621
1622 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1623 ({ \
1624 long res; \
1625 register unsigned long r6 __asm__ ("r9" ); \
1626 register unsigned long r5 __asm__ ("r8" ); \
1627 register unsigned long r4 __asm__ ("r10"); \
1628 register unsigned long r3 __asm__ ("rdx"); \
1629 register unsigned long r2 __asm__ ("rsi"); \
1630 register unsigned long r1 __asm__ ("rdi"); \
1631 if (narg >= 6) r6 = (unsigned long)(arg6); \
1632 if (narg >= 5) r5 = (unsigned long)(arg5); \
1633 if (narg >= 4) r4 = (unsigned long)(arg4); \
1634 if (narg >= 3) r3 = (unsigned long)(arg3); \
1635 if (narg >= 2) r2 = (unsigned long)(arg2); \
1636 if (narg >= 1) r1 = (unsigned long)(arg1); \
1637 __asm__ __volatile__ ( \
1638 "syscall\n\t" \
1639 : "=a" (res) \
1640 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1641 : "cc", "r11", "cx", "memory"); \
1642 errno = -res; \
1643 res; \
1644 })
1645
1646#endif
1647
1648#ifdef ev_syscall
1649 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1650 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1651 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1652 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1653 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1654 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1655 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1656#else
1657 #define ev_syscall0(nr) syscall (nr)
1658 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1659 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1660 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1661 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1662 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1663 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1664#endif
1665
1666#endif
1667
1668/*****************************************************************************/
1325 1669
1326#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1670#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1327 1671
1328#if EV_MINPRI == EV_MAXPRI 1672#if EV_MINPRI == EV_MAXPRI
1329# define ABSPRI(w) (((W)w), 0) 1673# define ABSPRI(w) (((W)w), 0)
1330#else 1674#else
1331# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1675# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1332#endif 1676#endif
1333 1677
1334#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1678#define EMPTY /* required for microsofts broken pseudo-c compiler */
1335#define EMPTY2(a,b) /* used to suppress some warnings */
1336 1679
1337typedef ev_watcher *W; 1680typedef ev_watcher *W;
1338typedef ev_watcher_list *WL; 1681typedef ev_watcher_list *WL;
1339typedef ev_watcher_time *WT; 1682typedef ev_watcher_time *WT;
1340 1683
… …
1365# include "ev_win32.c" 1708# include "ev_win32.c"
1366#endif 1709#endif
1367 1710
1368/*****************************************************************************/ 1711/*****************************************************************************/
1369 1712
1713#if EV_USE_LINUXAIO
1714# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1715#endif
1716
1370/* define a suitable floor function (only used by periodics atm) */ 1717/* define a suitable floor function (only used by periodics atm) */
1371 1718
1372#if EV_USE_FLOOR 1719#if EV_USE_FLOOR
1373# include <math.h> 1720# include <math.h>
1374# define ev_floor(v) floor (v) 1721# define ev_floor(v) floor (v)
1375#else 1722#else
1376 1723
1377#include <float.h> 1724#include <float.h>
1378 1725
1379/* a floor() replacement function, should be independent of ev_tstamp type */ 1726/* a floor() replacement function, should be independent of ev_tstamp type */
1727ecb_noinline
1380static ev_tstamp noinline 1728static ev_tstamp
1381ev_floor (ev_tstamp v) 1729ev_floor (ev_tstamp v)
1382{ 1730{
1383 /* the choice of shift factor is not terribly important */ 1731 /* the choice of shift factor is not terribly important */
1384#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1732#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1385 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1733 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1386#else 1734#else
1387 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1735 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1388#endif 1736#endif
1389 1737
1738 /* special treatment for negative arguments */
1739 if (ecb_expect_false (v < 0.))
1740 {
1741 ev_tstamp f = -ev_floor (-v);
1742
1743 return f - (f == v ? 0 : 1);
1744 }
1745
1390 /* argument too large for an unsigned long? */ 1746 /* argument too large for an unsigned long? then reduce it */
1391 if (expect_false (v >= shift)) 1747 if (ecb_expect_false (v >= shift))
1392 { 1748 {
1393 ev_tstamp f; 1749 ev_tstamp f;
1394 1750
1395 if (v == v - 1.) 1751 if (v == v - 1.)
1396 return v; /* very large number */ 1752 return v; /* very large numbers are assumed to be integer */
1397 1753
1398 f = shift * ev_floor (v * (1. / shift)); 1754 f = shift * ev_floor (v * (1. / shift));
1399 return f + ev_floor (v - f); 1755 return f + ev_floor (v - f);
1400 } 1756 }
1401 1757
1402 /* special treatment for negative args? */
1403 if (expect_false (v < 0.))
1404 {
1405 ev_tstamp f = -ev_floor (-v);
1406
1407 return f - (f == v ? 0 : 1);
1408 }
1409
1410 /* fits into an unsigned long */ 1758 /* fits into an unsigned long */
1411 return (unsigned long)v; 1759 return (unsigned long)v;
1412} 1760}
1413 1761
1414#endif 1762#endif
… …
1417 1765
1418#ifdef __linux 1766#ifdef __linux
1419# include <sys/utsname.h> 1767# include <sys/utsname.h>
1420#endif 1768#endif
1421 1769
1422static unsigned int noinline ecb_cold 1770ecb_noinline ecb_cold
1771static unsigned int
1423ev_linux_version (void) 1772ev_linux_version (void)
1424{ 1773{
1425#ifdef __linux 1774#ifdef __linux
1426 unsigned int v = 0; 1775 unsigned int v = 0;
1427 struct utsname buf; 1776 struct utsname buf;
… …
1456} 1805}
1457 1806
1458/*****************************************************************************/ 1807/*****************************************************************************/
1459 1808
1460#if EV_AVOID_STDIO 1809#if EV_AVOID_STDIO
1461static void noinline ecb_cold 1810ecb_noinline ecb_cold
1811static void
1462ev_printerr (const char *msg) 1812ev_printerr (const char *msg)
1463{ 1813{
1464 write (STDERR_FILENO, msg, strlen (msg)); 1814 write (STDERR_FILENO, msg, strlen (msg));
1465} 1815}
1466#endif 1816#endif
1467 1817
1468static void (*syserr_cb)(const char *msg) EV_THROW; 1818static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1469 1819
1470void ecb_cold 1820ecb_cold
1821void
1471ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1822ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1472{ 1823{
1473 syserr_cb = cb; 1824 syserr_cb = cb;
1474} 1825}
1475 1826
1476static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1477ev_syserr (const char *msg) 1829ev_syserr (const char *msg)
1478{ 1830{
1479 if (!msg) 1831 if (!msg)
1480 msg = "(libev) system error"; 1832 msg = "(libev) system error";
1481 1833
… …
1494 abort (); 1846 abort ();
1495 } 1847 }
1496} 1848}
1497 1849
1498static void * 1850static void *
1499ev_realloc_emul (void *ptr, long size) EV_THROW 1851ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1500{ 1852{
1501 /* some systems, notably openbsd and darwin, fail to properly 1853 /* some systems, notably openbsd and darwin, fail to properly
1502 * implement realloc (x, 0) (as required by both ansi c-89 and 1854 * implement realloc (x, 0) (as required by both ansi c-89 and
1503 * the single unix specification, so work around them here. 1855 * the single unix specification, so work around them here.
1504 * recently, also (at least) fedora and debian started breaking it, 1856 * recently, also (at least) fedora and debian started breaking it,
… …
1510 1862
1511 free (ptr); 1863 free (ptr);
1512 return 0; 1864 return 0;
1513} 1865}
1514 1866
1515static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1867static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1516 1868
1517void ecb_cold 1869ecb_cold
1870void
1518ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1871ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1519{ 1872{
1520 alloc = cb; 1873 alloc = cb;
1521} 1874}
1522 1875
1523inline_speed void * 1876inline_speed void *
… …
1550typedef struct 1903typedef struct
1551{ 1904{
1552 WL head; 1905 WL head;
1553 unsigned char events; /* the events watched for */ 1906 unsigned char events; /* the events watched for */
1554 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1907 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1555 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1908 unsigned char emask; /* some backends store the actual kernel mask in here */
1556 unsigned char unused; 1909 unsigned char eflags; /* flags field for use by backends */
1557#if EV_USE_EPOLL 1910#if EV_USE_EPOLL
1558 unsigned int egen; /* generation counter to counter epoll bugs */ 1911 unsigned int egen; /* generation counter to counter epoll bugs */
1559#endif 1912#endif
1560#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1913#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1561 SOCKET handle; 1914 SOCKET handle;
… …
1615 static struct ev_loop default_loop_struct; 1968 static struct ev_loop default_loop_struct;
1616 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 1969 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1617 1970
1618#else 1971#else
1619 1972
1620 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 1973 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1621 #define VAR(name,decl) static decl; 1974 #define VAR(name,decl) static decl;
1622 #include "ev_vars.h" 1975 #include "ev_vars.h"
1623 #undef VAR 1976 #undef VAR
1624 1977
1625 static int ev_default_loop_ptr; 1978 static int ev_default_loop_ptr;
1626 1979
1627#endif 1980#endif
1628 1981
1629#if EV_FEATURE_API 1982#if EV_FEATURE_API
1630# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1983# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1631# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1984# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1632# define EV_INVOKE_PENDING invoke_cb (EV_A) 1985# define EV_INVOKE_PENDING invoke_cb (EV_A)
1633#else 1986#else
1634# define EV_RELEASE_CB (void)0 1987# define EV_RELEASE_CB (void)0
1635# define EV_ACQUIRE_CB (void)0 1988# define EV_ACQUIRE_CB (void)0
1636# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1989# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1640 1993
1641/*****************************************************************************/ 1994/*****************************************************************************/
1642 1995
1643#ifndef EV_HAVE_EV_TIME 1996#ifndef EV_HAVE_EV_TIME
1644ev_tstamp 1997ev_tstamp
1645ev_time (void) EV_THROW 1998ev_time (void) EV_NOEXCEPT
1646{ 1999{
1647#if EV_USE_REALTIME 2000#if EV_USE_REALTIME
1648 if (expect_true (have_realtime)) 2001 if (ecb_expect_true (have_realtime))
1649 { 2002 {
1650 struct timespec ts; 2003 struct timespec ts;
1651 clock_gettime (CLOCK_REALTIME, &ts); 2004 clock_gettime (CLOCK_REALTIME, &ts);
1652 return ts.tv_sec + ts.tv_nsec * 1e-9; 2005 return EV_TS_GET (ts);
1653 } 2006 }
1654#endif 2007#endif
1655 2008
2009 {
1656 struct timeval tv; 2010 struct timeval tv;
1657 gettimeofday (&tv, 0); 2011 gettimeofday (&tv, 0);
1658 return tv.tv_sec + tv.tv_usec * 1e-6; 2012 return EV_TV_GET (tv);
2013 }
1659} 2014}
1660#endif 2015#endif
1661 2016
1662inline_size ev_tstamp 2017inline_size ev_tstamp
1663get_clock (void) 2018get_clock (void)
1664{ 2019{
1665#if EV_USE_MONOTONIC 2020#if EV_USE_MONOTONIC
1666 if (expect_true (have_monotonic)) 2021 if (ecb_expect_true (have_monotonic))
1667 { 2022 {
1668 struct timespec ts; 2023 struct timespec ts;
1669 clock_gettime (CLOCK_MONOTONIC, &ts); 2024 clock_gettime (CLOCK_MONOTONIC, &ts);
1670 return ts.tv_sec + ts.tv_nsec * 1e-9; 2025 return EV_TS_GET (ts);
1671 } 2026 }
1672#endif 2027#endif
1673 2028
1674 return ev_time (); 2029 return ev_time ();
1675} 2030}
1676 2031
1677#if EV_MULTIPLICITY 2032#if EV_MULTIPLICITY
1678ev_tstamp 2033ev_tstamp
1679ev_now (EV_P) EV_THROW 2034ev_now (EV_P) EV_NOEXCEPT
1680{ 2035{
1681 return ev_rt_now; 2036 return ev_rt_now;
1682} 2037}
1683#endif 2038#endif
1684 2039
1685void 2040void
1686ev_sleep (ev_tstamp delay) EV_THROW 2041ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1687{ 2042{
1688 if (delay > 0.) 2043 if (delay > EV_TS_CONST (0.))
1689 { 2044 {
1690#if EV_USE_NANOSLEEP 2045#if EV_USE_NANOSLEEP
1691 struct timespec ts; 2046 struct timespec ts;
1692 2047
1693 EV_TS_SET (ts, delay); 2048 EV_TS_SET (ts, delay);
1694 nanosleep (&ts, 0); 2049 nanosleep (&ts, 0);
1695#elif defined _WIN32 2050#elif defined _WIN32
2051 /* maybe this should round up, as ms is very low resolution */
2052 /* compared to select (µs) or nanosleep (ns) */
1696 Sleep ((unsigned long)(delay * 1e3)); 2053 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1697#else 2054#else
1698 struct timeval tv; 2055 struct timeval tv;
1699 2056
1700 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2057 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1701 /* something not guaranteed by newer posix versions, but guaranteed */ 2058 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1731 } 2088 }
1732 2089
1733 return ncur; 2090 return ncur;
1734} 2091}
1735 2092
1736static void * noinline ecb_cold 2093ecb_noinline ecb_cold
2094static void *
1737array_realloc (int elem, void *base, int *cur, int cnt) 2095array_realloc (int elem, void *base, int *cur, int cnt)
1738{ 2096{
1739 *cur = array_nextsize (elem, *cur, cnt); 2097 *cur = array_nextsize (elem, *cur, cnt);
1740 return ev_realloc (base, elem * *cur); 2098 return ev_realloc (base, elem * *cur);
1741} 2099}
1742 2100
2101#define array_needsize_noinit(base,offset,count)
2102
1743#define array_init_zero(base,count) \ 2103#define array_needsize_zerofill(base,offset,count) \
1744 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2104 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1745 2105
1746#define array_needsize(type,base,cur,cnt,init) \ 2106#define array_needsize(type,base,cur,cnt,init) \
1747 if (expect_false ((cnt) > (cur))) \ 2107 if (ecb_expect_false ((cnt) > (cur))) \
1748 { \ 2108 { \
1749 int ecb_unused ocur_ = (cur); \ 2109 ecb_unused int ocur_ = (cur); \
1750 (base) = (type *)array_realloc \ 2110 (base) = (type *)array_realloc \
1751 (sizeof (type), (base), &(cur), (cnt)); \ 2111 (sizeof (type), (base), &(cur), (cnt)); \
1752 init ((base) + (ocur_), (cur) - ocur_); \ 2112 init ((base), ocur_, ((cur) - ocur_)); \
1753 } 2113 }
1754 2114
1755#if 0 2115#if 0
1756#define array_slim(type,stem) \ 2116#define array_slim(type,stem) \
1757 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2117 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1766 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2126 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1767 2127
1768/*****************************************************************************/ 2128/*****************************************************************************/
1769 2129
1770/* dummy callback for pending events */ 2130/* dummy callback for pending events */
1771static void noinline 2131ecb_noinline
2132static void
1772pendingcb (EV_P_ ev_prepare *w, int revents) 2133pendingcb (EV_P_ ev_prepare *w, int revents)
1773{ 2134{
1774} 2135}
1775 2136
1776void noinline 2137ecb_noinline
2138void
1777ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2139ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1778{ 2140{
1779 W w_ = (W)w; 2141 W w_ = (W)w;
1780 int pri = ABSPRI (w_); 2142 int pri = ABSPRI (w_);
1781 2143
1782 if (expect_false (w_->pending)) 2144 if (ecb_expect_false (w_->pending))
1783 pendings [pri][w_->pending - 1].events |= revents; 2145 pendings [pri][w_->pending - 1].events |= revents;
1784 else 2146 else
1785 { 2147 {
1786 w_->pending = ++pendingcnt [pri]; 2148 w_->pending = ++pendingcnt [pri];
1787 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2149 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1788 pendings [pri][w_->pending - 1].w = w_; 2150 pendings [pri][w_->pending - 1].w = w_;
1789 pendings [pri][w_->pending - 1].events = revents; 2151 pendings [pri][w_->pending - 1].events = revents;
1790 } 2152 }
1791 2153
1792 pendingpri = NUMPRI - 1; 2154 pendingpri = NUMPRI - 1;
1793} 2155}
1794 2156
1795inline_speed void 2157inline_speed void
1796feed_reverse (EV_P_ W w) 2158feed_reverse (EV_P_ W w)
1797{ 2159{
1798 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2160 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1799 rfeeds [rfeedcnt++] = w; 2161 rfeeds [rfeedcnt++] = w;
1800} 2162}
1801 2163
1802inline_size void 2164inline_size void
1803feed_reverse_done (EV_P_ int revents) 2165feed_reverse_done (EV_P_ int revents)
… …
1838inline_speed void 2200inline_speed void
1839fd_event (EV_P_ int fd, int revents) 2201fd_event (EV_P_ int fd, int revents)
1840{ 2202{
1841 ANFD *anfd = anfds + fd; 2203 ANFD *anfd = anfds + fd;
1842 2204
1843 if (expect_true (!anfd->reify)) 2205 if (ecb_expect_true (!anfd->reify))
1844 fd_event_nocheck (EV_A_ fd, revents); 2206 fd_event_nocheck (EV_A_ fd, revents);
1845} 2207}
1846 2208
1847void 2209void
1848ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2210ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1849{ 2211{
1850 if (fd >= 0 && fd < anfdmax) 2212 if (fd >= 0 && fd < anfdmax)
1851 fd_event_nocheck (EV_A_ fd, revents); 2213 fd_event_nocheck (EV_A_ fd, revents);
1852} 2214}
1853 2215
… …
1890 ev_io *w; 2252 ev_io *w;
1891 2253
1892 unsigned char o_events = anfd->events; 2254 unsigned char o_events = anfd->events;
1893 unsigned char o_reify = anfd->reify; 2255 unsigned char o_reify = anfd->reify;
1894 2256
1895 anfd->reify = 0; 2257 anfd->reify = 0;
1896 2258
1897 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2259 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1898 { 2260 {
1899 anfd->events = 0; 2261 anfd->events = 0;
1900 2262
1901 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2263 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1902 anfd->events |= (unsigned char)w->events; 2264 anfd->events |= (unsigned char)w->events;
… …
1911 2273
1912 fdchangecnt = 0; 2274 fdchangecnt = 0;
1913} 2275}
1914 2276
1915/* something about the given fd changed */ 2277/* something about the given fd changed */
1916inline_size void 2278inline_size
2279void
1917fd_change (EV_P_ int fd, int flags) 2280fd_change (EV_P_ int fd, int flags)
1918{ 2281{
1919 unsigned char reify = anfds [fd].reify; 2282 unsigned char reify = anfds [fd].reify;
1920 anfds [fd].reify |= flags; 2283 anfds [fd].reify |= flags;
1921 2284
1922 if (expect_true (!reify)) 2285 if (ecb_expect_true (!reify))
1923 { 2286 {
1924 ++fdchangecnt; 2287 ++fdchangecnt;
1925 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2288 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1926 fdchanges [fdchangecnt - 1] = fd; 2289 fdchanges [fdchangecnt - 1] = fd;
1927 } 2290 }
1928} 2291}
1929 2292
1930/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2293/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1931inline_speed void ecb_cold 2294inline_speed ecb_cold void
1932fd_kill (EV_P_ int fd) 2295fd_kill (EV_P_ int fd)
1933{ 2296{
1934 ev_io *w; 2297 ev_io *w;
1935 2298
1936 while ((w = (ev_io *)anfds [fd].head)) 2299 while ((w = (ev_io *)anfds [fd].head))
… …
1939 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2302 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1940 } 2303 }
1941} 2304}
1942 2305
1943/* check whether the given fd is actually valid, for error recovery */ 2306/* check whether the given fd is actually valid, for error recovery */
1944inline_size int ecb_cold 2307inline_size ecb_cold int
1945fd_valid (int fd) 2308fd_valid (int fd)
1946{ 2309{
1947#ifdef _WIN32 2310#ifdef _WIN32
1948 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2311 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1949#else 2312#else
1950 return fcntl (fd, F_GETFD) != -1; 2313 return fcntl (fd, F_GETFD) != -1;
1951#endif 2314#endif
1952} 2315}
1953 2316
1954/* called on EBADF to verify fds */ 2317/* called on EBADF to verify fds */
1955static void noinline ecb_cold 2318ecb_noinline ecb_cold
2319static void
1956fd_ebadf (EV_P) 2320fd_ebadf (EV_P)
1957{ 2321{
1958 int fd; 2322 int fd;
1959 2323
1960 for (fd = 0; fd < anfdmax; ++fd) 2324 for (fd = 0; fd < anfdmax; ++fd)
… …
1962 if (!fd_valid (fd) && errno == EBADF) 2326 if (!fd_valid (fd) && errno == EBADF)
1963 fd_kill (EV_A_ fd); 2327 fd_kill (EV_A_ fd);
1964} 2328}
1965 2329
1966/* called on ENOMEM in select/poll to kill some fds and retry */ 2330/* called on ENOMEM in select/poll to kill some fds and retry */
1967static void noinline ecb_cold 2331ecb_noinline ecb_cold
2332static void
1968fd_enomem (EV_P) 2333fd_enomem (EV_P)
1969{ 2334{
1970 int fd; 2335 int fd;
1971 2336
1972 for (fd = anfdmax; fd--; ) 2337 for (fd = anfdmax; fd--; )
… …
1976 break; 2341 break;
1977 } 2342 }
1978} 2343}
1979 2344
1980/* usually called after fork if backend needs to re-arm all fds from scratch */ 2345/* usually called after fork if backend needs to re-arm all fds from scratch */
1981static void noinline 2346ecb_noinline
2347static void
1982fd_rearm_all (EV_P) 2348fd_rearm_all (EV_P)
1983{ 2349{
1984 int fd; 2350 int fd;
1985 2351
1986 for (fd = 0; fd < anfdmax; ++fd) 2352 for (fd = 0; fd < anfdmax; ++fd)
… …
2039 ev_tstamp minat; 2405 ev_tstamp minat;
2040 ANHE *minpos; 2406 ANHE *minpos;
2041 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2407 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2042 2408
2043 /* find minimum child */ 2409 /* find minimum child */
2044 if (expect_true (pos + DHEAP - 1 < E)) 2410 if (ecb_expect_true (pos + DHEAP - 1 < E))
2045 { 2411 {
2046 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2412 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2047 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2413 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2048 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2414 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2049 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2415 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2050 } 2416 }
2051 else if (pos < E) 2417 else if (pos < E)
2052 { 2418 {
2053 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2419 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2054 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2420 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2055 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2421 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2056 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2422 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2057 } 2423 }
2058 else 2424 else
2059 break; 2425 break;
2060 2426
2061 if (ANHE_at (he) <= minat) 2427 if (ANHE_at (he) <= minat)
… …
2069 2435
2070 heap [k] = he; 2436 heap [k] = he;
2071 ev_active (ANHE_w (he)) = k; 2437 ev_active (ANHE_w (he)) = k;
2072} 2438}
2073 2439
2074#else /* 4HEAP */ 2440#else /* not 4HEAP */
2075 2441
2076#define HEAP0 1 2442#define HEAP0 1
2077#define HPARENT(k) ((k) >> 1) 2443#define HPARENT(k) ((k) >> 1)
2078#define UPHEAP_DONE(p,k) (!(p)) 2444#define UPHEAP_DONE(p,k) (!(p))
2079 2445
… …
2167 2533
2168/*****************************************************************************/ 2534/*****************************************************************************/
2169 2535
2170#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2536#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2171 2537
2172static void noinline ecb_cold 2538ecb_noinline ecb_cold
2539static void
2173evpipe_init (EV_P) 2540evpipe_init (EV_P)
2174{ 2541{
2175 if (!ev_is_active (&pipe_w)) 2542 if (!ev_is_active (&pipe_w))
2176 { 2543 {
2177 int fds [2]; 2544 int fds [2];
… …
2217inline_speed void 2584inline_speed void
2218evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2585evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2219{ 2586{
2220 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2587 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2221 2588
2222 if (expect_true (*flag)) 2589 if (ecb_expect_true (*flag))
2223 return; 2590 return;
2224 2591
2225 *flag = 1; 2592 *flag = 1;
2226 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2593 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2227 2594
… …
2248#endif 2615#endif
2249 { 2616 {
2250#ifdef _WIN32 2617#ifdef _WIN32
2251 WSABUF buf; 2618 WSABUF buf;
2252 DWORD sent; 2619 DWORD sent;
2253 buf.buf = &buf; 2620 buf.buf = (char *)&buf;
2254 buf.len = 1; 2621 buf.len = 1;
2255 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2622 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2256#else 2623#else
2257 write (evpipe [1], &(evpipe [1]), 1); 2624 write (evpipe [1], &(evpipe [1]), 1);
2258#endif 2625#endif
… …
2304 sig_pending = 0; 2671 sig_pending = 0;
2305 2672
2306 ECB_MEMORY_FENCE; 2673 ECB_MEMORY_FENCE;
2307 2674
2308 for (i = EV_NSIG - 1; i--; ) 2675 for (i = EV_NSIG - 1; i--; )
2309 if (expect_false (signals [i].pending)) 2676 if (ecb_expect_false (signals [i].pending))
2310 ev_feed_signal_event (EV_A_ i + 1); 2677 ev_feed_signal_event (EV_A_ i + 1);
2311 } 2678 }
2312#endif 2679#endif
2313 2680
2314#if EV_ASYNC_ENABLE 2681#if EV_ASYNC_ENABLE
… …
2330} 2697}
2331 2698
2332/*****************************************************************************/ 2699/*****************************************************************************/
2333 2700
2334void 2701void
2335ev_feed_signal (int signum) EV_THROW 2702ev_feed_signal (int signum) EV_NOEXCEPT
2336{ 2703{
2337#if EV_MULTIPLICITY 2704#if EV_MULTIPLICITY
2338 EV_P; 2705 EV_P;
2339 ECB_MEMORY_FENCE_ACQUIRE; 2706 ECB_MEMORY_FENCE_ACQUIRE;
2340 EV_A = signals [signum - 1].loop; 2707 EV_A = signals [signum - 1].loop;
… …
2355#endif 2722#endif
2356 2723
2357 ev_feed_signal (signum); 2724 ev_feed_signal (signum);
2358} 2725}
2359 2726
2360void noinline 2727ecb_noinline
2728void
2361ev_feed_signal_event (EV_P_ int signum) EV_THROW 2729ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2362{ 2730{
2363 WL w; 2731 WL w;
2364 2732
2365 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2733 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2366 return; 2734 return;
2367 2735
2368 --signum; 2736 --signum;
2369 2737
2370#if EV_MULTIPLICITY 2738#if EV_MULTIPLICITY
2371 /* it is permissible to try to feed a signal to the wrong loop */ 2739 /* it is permissible to try to feed a signal to the wrong loop */
2372 /* or, likely more useful, feeding a signal nobody is waiting for */ 2740 /* or, likely more useful, feeding a signal nobody is waiting for */
2373 2741
2374 if (expect_false (signals [signum].loop != EV_A)) 2742 if (ecb_expect_false (signals [signum].loop != EV_A))
2375 return; 2743 return;
2376#endif 2744#endif
2377 2745
2378 signals [signum].pending = 0; 2746 signals [signum].pending = 0;
2379 ECB_MEMORY_FENCE_RELEASE; 2747 ECB_MEMORY_FENCE_RELEASE;
… …
2475# include "ev_kqueue.c" 2843# include "ev_kqueue.c"
2476#endif 2844#endif
2477#if EV_USE_EPOLL 2845#if EV_USE_EPOLL
2478# include "ev_epoll.c" 2846# include "ev_epoll.c"
2479#endif 2847#endif
2848#if EV_USE_LINUXAIO
2849# include "ev_linuxaio.c"
2850#endif
2851#if EV_USE_IOURING
2852# include "ev_iouring.c"
2853#endif
2480#if EV_USE_POLL 2854#if EV_USE_POLL
2481# include "ev_poll.c" 2855# include "ev_poll.c"
2482#endif 2856#endif
2483#if EV_USE_SELECT 2857#if EV_USE_SELECT
2484# include "ev_select.c" 2858# include "ev_select.c"
2485#endif 2859#endif
2486 2860
2487int ecb_cold 2861ecb_cold int
2488ev_version_major (void) EV_THROW 2862ev_version_major (void) EV_NOEXCEPT
2489{ 2863{
2490 return EV_VERSION_MAJOR; 2864 return EV_VERSION_MAJOR;
2491} 2865}
2492 2866
2493int ecb_cold 2867ecb_cold int
2494ev_version_minor (void) EV_THROW 2868ev_version_minor (void) EV_NOEXCEPT
2495{ 2869{
2496 return EV_VERSION_MINOR; 2870 return EV_VERSION_MINOR;
2497} 2871}
2498 2872
2499/* return true if we are running with elevated privileges and should ignore env variables */ 2873/* return true if we are running with elevated privileges and should ignore env variables */
2500int inline_size ecb_cold 2874inline_size ecb_cold int
2501enable_secure (void) 2875enable_secure (void)
2502{ 2876{
2503#ifdef _WIN32 2877#ifdef _WIN32
2504 return 0; 2878 return 0;
2505#else 2879#else
2506 return getuid () != geteuid () 2880 return getuid () != geteuid ()
2507 || getgid () != getegid (); 2881 || getgid () != getegid ();
2508#endif 2882#endif
2509} 2883}
2510 2884
2511unsigned int ecb_cold 2885ecb_cold
2886unsigned int
2512ev_supported_backends (void) EV_THROW 2887ev_supported_backends (void) EV_NOEXCEPT
2513{ 2888{
2514 unsigned int flags = 0; 2889 unsigned int flags = 0;
2515 2890
2516 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2891 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2517 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2892 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2518 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2893 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2894 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2895 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2519 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2896 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2520 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2897 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2521 2898
2522 return flags; 2899 return flags;
2523} 2900}
2524 2901
2525unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2526ev_recommended_backends (void) EV_THROW 2904ev_recommended_backends (void) EV_NOEXCEPT
2527{ 2905{
2528 unsigned int flags = ev_supported_backends (); 2906 unsigned int flags = ev_supported_backends ();
2529 2907
2530#ifndef __NetBSD__ 2908#ifndef __NetBSD__
2531 /* kqueue is borked on everything but netbsd apparently */ 2909 /* kqueue is borked on everything but netbsd apparently */
… …
2539#endif 2917#endif
2540#ifdef __FreeBSD__ 2918#ifdef __FreeBSD__
2541 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2919 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2542#endif 2920#endif
2543 2921
2922 /* TODO: linuxaio is very experimental */
2923#if !EV_RECOMMEND_LINUXAIO
2924 flags &= ~EVBACKEND_LINUXAIO;
2925#endif
2926 /* TODO: linuxaio is super experimental */
2927#if !EV_RECOMMEND_IOURING
2928 flags &= ~EVBACKEND_IOURING;
2929#endif
2930
2544 return flags; 2931 return flags;
2545} 2932}
2546 2933
2547unsigned int ecb_cold 2934ecb_cold
2935unsigned int
2548ev_embeddable_backends (void) EV_THROW 2936ev_embeddable_backends (void) EV_NOEXCEPT
2549{ 2937{
2550 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2938 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2551 2939
2552 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2940 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2553 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2941 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2554 flags &= ~EVBACKEND_EPOLL; 2942 flags &= ~EVBACKEND_EPOLL;
2555 2943
2944 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2945
2946 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2947 * because our backend_fd is the epoll fd we need as fallback.
2948 * if the kernel ever is fixed, this might change...
2949 */
2950
2556 return flags; 2951 return flags;
2557} 2952}
2558 2953
2559unsigned int 2954unsigned int
2560ev_backend (EV_P) EV_THROW 2955ev_backend (EV_P) EV_NOEXCEPT
2561{ 2956{
2562 return backend; 2957 return backend;
2563} 2958}
2564 2959
2565#if EV_FEATURE_API 2960#if EV_FEATURE_API
2566unsigned int 2961unsigned int
2567ev_iteration (EV_P) EV_THROW 2962ev_iteration (EV_P) EV_NOEXCEPT
2568{ 2963{
2569 return loop_count; 2964 return loop_count;
2570} 2965}
2571 2966
2572unsigned int 2967unsigned int
2573ev_depth (EV_P) EV_THROW 2968ev_depth (EV_P) EV_NOEXCEPT
2574{ 2969{
2575 return loop_depth; 2970 return loop_depth;
2576} 2971}
2577 2972
2578void 2973void
2579ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2974ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2580{ 2975{
2581 io_blocktime = interval; 2976 io_blocktime = interval;
2582} 2977}
2583 2978
2584void 2979void
2585ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2980ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2586{ 2981{
2587 timeout_blocktime = interval; 2982 timeout_blocktime = interval;
2588} 2983}
2589 2984
2590void 2985void
2591ev_set_userdata (EV_P_ void *data) EV_THROW 2986ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2592{ 2987{
2593 userdata = data; 2988 userdata = data;
2594} 2989}
2595 2990
2596void * 2991void *
2597ev_userdata (EV_P) EV_THROW 2992ev_userdata (EV_P) EV_NOEXCEPT
2598{ 2993{
2599 return userdata; 2994 return userdata;
2600} 2995}
2601 2996
2602void 2997void
2603ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2998ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2604{ 2999{
2605 invoke_cb = invoke_pending_cb; 3000 invoke_cb = invoke_pending_cb;
2606} 3001}
2607 3002
2608void 3003void
2609ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 3004ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2610{ 3005{
2611 release_cb = release; 3006 release_cb = release;
2612 acquire_cb = acquire; 3007 acquire_cb = acquire;
2613} 3008}
2614#endif 3009#endif
2615 3010
2616/* initialise a loop structure, must be zero-initialised */ 3011/* initialise a loop structure, must be zero-initialised */
2617static void noinline ecb_cold 3012ecb_noinline ecb_cold
3013static void
2618loop_init (EV_P_ unsigned int flags) EV_THROW 3014loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2619{ 3015{
2620 if (!backend) 3016 if (!backend)
2621 { 3017 {
2622 origflags = flags; 3018 origflags = flags;
2623 3019
… …
2681 3077
2682 if (!(flags & EVBACKEND_MASK)) 3078 if (!(flags & EVBACKEND_MASK))
2683 flags |= ev_recommended_backends (); 3079 flags |= ev_recommended_backends ();
2684 3080
2685#if EV_USE_IOCP 3081#if EV_USE_IOCP
2686 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3082 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2687#endif 3083#endif
2688#if EV_USE_PORT 3084#if EV_USE_PORT
2689 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3085 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2690#endif 3086#endif
2691#if EV_USE_KQUEUE 3087#if EV_USE_KQUEUE
2692 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3088 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3089#endif
3090#if EV_USE_IOURING
3091 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3092#endif
3093#if EV_USE_LINUXAIO
3094 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2693#endif 3095#endif
2694#if EV_USE_EPOLL 3096#if EV_USE_EPOLL
2695 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3097 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2696#endif 3098#endif
2697#if EV_USE_POLL 3099#if EV_USE_POLL
2698 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3100 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2699#endif 3101#endif
2700#if EV_USE_SELECT 3102#if EV_USE_SELECT
2701 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3103 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2702#endif 3104#endif
2703 3105
2704 ev_prepare_init (&pending_w, pendingcb); 3106 ev_prepare_init (&pending_w, pendingcb);
2705 3107
2706#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3108#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2709#endif 3111#endif
2710 } 3112 }
2711} 3113}
2712 3114
2713/* free up a loop structure */ 3115/* free up a loop structure */
2714void ecb_cold 3116ecb_cold
3117void
2715ev_loop_destroy (EV_P) 3118ev_loop_destroy (EV_P)
2716{ 3119{
2717 int i; 3120 int i;
2718 3121
2719#if EV_MULTIPLICITY 3122#if EV_MULTIPLICITY
… …
2722 return; 3125 return;
2723#endif 3126#endif
2724 3127
2725#if EV_CLEANUP_ENABLE 3128#if EV_CLEANUP_ENABLE
2726 /* queue cleanup watchers (and execute them) */ 3129 /* queue cleanup watchers (and execute them) */
2727 if (expect_false (cleanupcnt)) 3130 if (ecb_expect_false (cleanupcnt))
2728 { 3131 {
2729 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3132 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2730 EV_INVOKE_PENDING; 3133 EV_INVOKE_PENDING;
2731 } 3134 }
2732#endif 3135#endif
… …
2760 3163
2761 if (backend_fd >= 0) 3164 if (backend_fd >= 0)
2762 close (backend_fd); 3165 close (backend_fd);
2763 3166
2764#if EV_USE_IOCP 3167#if EV_USE_IOCP
2765 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3168 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2766#endif 3169#endif
2767#if EV_USE_PORT 3170#if EV_USE_PORT
2768 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3171 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2769#endif 3172#endif
2770#if EV_USE_KQUEUE 3173#if EV_USE_KQUEUE
2771 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3174 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3175#endif
3176#if EV_USE_IOURING
3177 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3178#endif
3179#if EV_USE_LINUXAIO
3180 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2772#endif 3181#endif
2773#if EV_USE_EPOLL 3182#if EV_USE_EPOLL
2774 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3183 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2775#endif 3184#endif
2776#if EV_USE_POLL 3185#if EV_USE_POLL
2777 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3186 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2778#endif 3187#endif
2779#if EV_USE_SELECT 3188#if EV_USE_SELECT
2780 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3189 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2781#endif 3190#endif
2782 3191
2783 for (i = NUMPRI; i--; ) 3192 for (i = NUMPRI; i--; )
2784 { 3193 {
2785 array_free (pending, [i]); 3194 array_free (pending, [i]);
… …
2827 3236
2828inline_size void 3237inline_size void
2829loop_fork (EV_P) 3238loop_fork (EV_P)
2830{ 3239{
2831#if EV_USE_PORT 3240#if EV_USE_PORT
2832 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3241 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2833#endif 3242#endif
2834#if EV_USE_KQUEUE 3243#if EV_USE_KQUEUE
2835 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3244 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3245#endif
3246#if EV_USE_IOURING
3247 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3248#endif
3249#if EV_USE_LINUXAIO
3250 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2836#endif 3251#endif
2837#if EV_USE_EPOLL 3252#if EV_USE_EPOLL
2838 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3253 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2839#endif 3254#endif
2840#if EV_USE_INOTIFY 3255#if EV_USE_INOTIFY
2841 infy_fork (EV_A); 3256 infy_fork (EV_A);
2842#endif 3257#endif
2843 3258
2844#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3259#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2845 if (ev_is_active (&pipe_w)) 3260 if (ev_is_active (&pipe_w) && postfork != 2)
2846 { 3261 {
2847 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3262 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2848 3263
2849 ev_ref (EV_A); 3264 ev_ref (EV_A);
2850 ev_io_stop (EV_A_ &pipe_w); 3265 ev_io_stop (EV_A_ &pipe_w);
… …
2861 postfork = 0; 3276 postfork = 0;
2862} 3277}
2863 3278
2864#if EV_MULTIPLICITY 3279#if EV_MULTIPLICITY
2865 3280
3281ecb_cold
2866struct ev_loop * ecb_cold 3282struct ev_loop *
2867ev_loop_new (unsigned int flags) EV_THROW 3283ev_loop_new (unsigned int flags) EV_NOEXCEPT
2868{ 3284{
2869 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3285 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2870 3286
2871 memset (EV_A, 0, sizeof (struct ev_loop)); 3287 memset (EV_A, 0, sizeof (struct ev_loop));
2872 loop_init (EV_A_ flags); 3288 loop_init (EV_A_ flags);
… …
2879} 3295}
2880 3296
2881#endif /* multiplicity */ 3297#endif /* multiplicity */
2882 3298
2883#if EV_VERIFY 3299#if EV_VERIFY
2884static void noinline ecb_cold 3300ecb_noinline ecb_cold
3301static void
2885verify_watcher (EV_P_ W w) 3302verify_watcher (EV_P_ W w)
2886{ 3303{
2887 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3304 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2888 3305
2889 if (w->pending) 3306 if (w->pending)
2890 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3307 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2891} 3308}
2892 3309
2893static void noinline ecb_cold 3310ecb_noinline ecb_cold
3311static void
2894verify_heap (EV_P_ ANHE *heap, int N) 3312verify_heap (EV_P_ ANHE *heap, int N)
2895{ 3313{
2896 int i; 3314 int i;
2897 3315
2898 for (i = HEAP0; i < N + HEAP0; ++i) 3316 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2903 3321
2904 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3322 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2905 } 3323 }
2906} 3324}
2907 3325
2908static void noinline ecb_cold 3326ecb_noinline ecb_cold
3327static void
2909array_verify (EV_P_ W *ws, int cnt) 3328array_verify (EV_P_ W *ws, int cnt)
2910{ 3329{
2911 while (cnt--) 3330 while (cnt--)
2912 { 3331 {
2913 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3332 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2916} 3335}
2917#endif 3336#endif
2918 3337
2919#if EV_FEATURE_API 3338#if EV_FEATURE_API
2920void ecb_cold 3339void ecb_cold
2921ev_verify (EV_P) EV_THROW 3340ev_verify (EV_P) EV_NOEXCEPT
2922{ 3341{
2923#if EV_VERIFY 3342#if EV_VERIFY
2924 int i; 3343 int i;
2925 WL w, w2; 3344 WL w, w2;
2926 3345
… …
3002#endif 3421#endif
3003} 3422}
3004#endif 3423#endif
3005 3424
3006#if EV_MULTIPLICITY 3425#if EV_MULTIPLICITY
3426ecb_cold
3007struct ev_loop * ecb_cold 3427struct ev_loop *
3008#else 3428#else
3009int 3429int
3010#endif 3430#endif
3011ev_default_loop (unsigned int flags) EV_THROW 3431ev_default_loop (unsigned int flags) EV_NOEXCEPT
3012{ 3432{
3013 if (!ev_default_loop_ptr) 3433 if (!ev_default_loop_ptr)
3014 { 3434 {
3015#if EV_MULTIPLICITY 3435#if EV_MULTIPLICITY
3016 EV_P = ev_default_loop_ptr = &default_loop_struct; 3436 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3035 3455
3036 return ev_default_loop_ptr; 3456 return ev_default_loop_ptr;
3037} 3457}
3038 3458
3039void 3459void
3040ev_loop_fork (EV_P) EV_THROW 3460ev_loop_fork (EV_P) EV_NOEXCEPT
3041{ 3461{
3042 postfork = 1; 3462 postfork = 1;
3043} 3463}
3044 3464
3045/*****************************************************************************/ 3465/*****************************************************************************/
… …
3049{ 3469{
3050 EV_CB_INVOKE ((W)w, revents); 3470 EV_CB_INVOKE ((W)w, revents);
3051} 3471}
3052 3472
3053unsigned int 3473unsigned int
3054ev_pending_count (EV_P) EV_THROW 3474ev_pending_count (EV_P) EV_NOEXCEPT
3055{ 3475{
3056 int pri; 3476 int pri;
3057 unsigned int count = 0; 3477 unsigned int count = 0;
3058 3478
3059 for (pri = NUMPRI; pri--; ) 3479 for (pri = NUMPRI; pri--; )
3060 count += pendingcnt [pri]; 3480 count += pendingcnt [pri];
3061 3481
3062 return count; 3482 return count;
3063} 3483}
3064 3484
3065void noinline 3485ecb_noinline
3486void
3066ev_invoke_pending (EV_P) 3487ev_invoke_pending (EV_P)
3067{ 3488{
3068 pendingpri = NUMPRI; 3489 pendingpri = NUMPRI;
3069 3490
3070 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3491 do
3071 { 3492 {
3072 --pendingpri; 3493 --pendingpri;
3073 3494
3495 /* pendingpri possibly gets modified in the inner loop */
3074 while (pendingcnt [pendingpri]) 3496 while (pendingcnt [pendingpri])
3075 { 3497 {
3076 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3498 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3077 3499
3078 p->w->pending = 0; 3500 p->w->pending = 0;
3079 EV_CB_INVOKE (p->w, p->events); 3501 EV_CB_INVOKE (p->w, p->events);
3080 EV_FREQUENT_CHECK; 3502 EV_FREQUENT_CHECK;
3081 } 3503 }
3082 } 3504 }
3505 while (pendingpri);
3083} 3506}
3084 3507
3085#if EV_IDLE_ENABLE 3508#if EV_IDLE_ENABLE
3086/* make idle watchers pending. this handles the "call-idle */ 3509/* make idle watchers pending. this handles the "call-idle */
3087/* only when higher priorities are idle" logic */ 3510/* only when higher priorities are idle" logic */
3088inline_size void 3511inline_size void
3089idle_reify (EV_P) 3512idle_reify (EV_P)
3090{ 3513{
3091 if (expect_false (idleall)) 3514 if (ecb_expect_false (idleall))
3092 { 3515 {
3093 int pri; 3516 int pri;
3094 3517
3095 for (pri = NUMPRI; pri--; ) 3518 for (pri = NUMPRI; pri--; )
3096 { 3519 {
… …
3126 { 3549 {
3127 ev_at (w) += w->repeat; 3550 ev_at (w) += w->repeat;
3128 if (ev_at (w) < mn_now) 3551 if (ev_at (w) < mn_now)
3129 ev_at (w) = mn_now; 3552 ev_at (w) = mn_now;
3130 3553
3131 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3554 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3132 3555
3133 ANHE_at_cache (timers [HEAP0]); 3556 ANHE_at_cache (timers [HEAP0]);
3134 downheap (timers, timercnt, HEAP0); 3557 downheap (timers, timercnt, HEAP0);
3135 } 3558 }
3136 else 3559 else
… …
3145 } 3568 }
3146} 3569}
3147 3570
3148#if EV_PERIODIC_ENABLE 3571#if EV_PERIODIC_ENABLE
3149 3572
3150static void noinline 3573ecb_noinline
3574static void
3151periodic_recalc (EV_P_ ev_periodic *w) 3575periodic_recalc (EV_P_ ev_periodic *w)
3152{ 3576{
3153 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3577 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3154 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3578 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3155 3579
… …
3157 while (at <= ev_rt_now) 3581 while (at <= ev_rt_now)
3158 { 3582 {
3159 ev_tstamp nat = at + w->interval; 3583 ev_tstamp nat = at + w->interval;
3160 3584
3161 /* when resolution fails us, we use ev_rt_now */ 3585 /* when resolution fails us, we use ev_rt_now */
3162 if (expect_false (nat == at)) 3586 if (ecb_expect_false (nat == at))
3163 { 3587 {
3164 at = ev_rt_now; 3588 at = ev_rt_now;
3165 break; 3589 break;
3166 } 3590 }
3167 3591
… …
3213 } 3637 }
3214} 3638}
3215 3639
3216/* simply recalculate all periodics */ 3640/* simply recalculate all periodics */
3217/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3641/* TODO: maybe ensure that at least one event happens when jumping forward? */
3218static void noinline ecb_cold 3642ecb_noinline ecb_cold
3643static void
3219periodics_reschedule (EV_P) 3644periodics_reschedule (EV_P)
3220{ 3645{
3221 int i; 3646 int i;
3222 3647
3223 /* adjust periodics after time jump */ 3648 /* adjust periodics after time jump */
… …
3236 reheap (periodics, periodiccnt); 3661 reheap (periodics, periodiccnt);
3237} 3662}
3238#endif 3663#endif
3239 3664
3240/* adjust all timers by a given offset */ 3665/* adjust all timers by a given offset */
3241static void noinline ecb_cold 3666ecb_noinline ecb_cold
3667static void
3242timers_reschedule (EV_P_ ev_tstamp adjust) 3668timers_reschedule (EV_P_ ev_tstamp adjust)
3243{ 3669{
3244 int i; 3670 int i;
3245 3671
3246 for (i = 0; i < timercnt; ++i) 3672 for (i = 0; i < timercnt; ++i)
… …
3255/* also detect if there was a timejump, and act accordingly */ 3681/* also detect if there was a timejump, and act accordingly */
3256inline_speed void 3682inline_speed void
3257time_update (EV_P_ ev_tstamp max_block) 3683time_update (EV_P_ ev_tstamp max_block)
3258{ 3684{
3259#if EV_USE_MONOTONIC 3685#if EV_USE_MONOTONIC
3260 if (expect_true (have_monotonic)) 3686 if (ecb_expect_true (have_monotonic))
3261 { 3687 {
3262 int i; 3688 int i;
3263 ev_tstamp odiff = rtmn_diff; 3689 ev_tstamp odiff = rtmn_diff;
3264 3690
3265 mn_now = get_clock (); 3691 mn_now = get_clock ();
3266 3692
3267 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3693 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3268 /* interpolate in the meantime */ 3694 /* interpolate in the meantime */
3269 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3695 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3270 { 3696 {
3271 ev_rt_now = rtmn_diff + mn_now; 3697 ev_rt_now = rtmn_diff + mn_now;
3272 return; 3698 return;
3273 } 3699 }
3274 3700
… …
3288 ev_tstamp diff; 3714 ev_tstamp diff;
3289 rtmn_diff = ev_rt_now - mn_now; 3715 rtmn_diff = ev_rt_now - mn_now;
3290 3716
3291 diff = odiff - rtmn_diff; 3717 diff = odiff - rtmn_diff;
3292 3718
3293 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3719 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3294 return; /* all is well */ 3720 return; /* all is well */
3295 3721
3296 ev_rt_now = ev_time (); 3722 ev_rt_now = ev_time ();
3297 mn_now = get_clock (); 3723 mn_now = get_clock ();
3298 now_floor = mn_now; 3724 now_floor = mn_now;
… …
3307 else 3733 else
3308#endif 3734#endif
3309 { 3735 {
3310 ev_rt_now = ev_time (); 3736 ev_rt_now = ev_time ();
3311 3737
3312 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3738 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3313 { 3739 {
3314 /* adjust timers. this is easy, as the offset is the same for all of them */ 3740 /* adjust timers. this is easy, as the offset is the same for all of them */
3315 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3741 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3316#if EV_PERIODIC_ENABLE 3742#if EV_PERIODIC_ENABLE
3317 periodics_reschedule (EV_A); 3743 periodics_reschedule (EV_A);
… …
3340#if EV_VERIFY >= 2 3766#if EV_VERIFY >= 2
3341 ev_verify (EV_A); 3767 ev_verify (EV_A);
3342#endif 3768#endif
3343 3769
3344#ifndef _WIN32 3770#ifndef _WIN32
3345 if (expect_false (curpid)) /* penalise the forking check even more */ 3771 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3346 if (expect_false (getpid () != curpid)) 3772 if (ecb_expect_false (getpid () != curpid))
3347 { 3773 {
3348 curpid = getpid (); 3774 curpid = getpid ();
3349 postfork = 1; 3775 postfork = 1;
3350 } 3776 }
3351#endif 3777#endif
3352 3778
3353#if EV_FORK_ENABLE 3779#if EV_FORK_ENABLE
3354 /* we might have forked, so queue fork handlers */ 3780 /* we might have forked, so queue fork handlers */
3355 if (expect_false (postfork)) 3781 if (ecb_expect_false (postfork))
3356 if (forkcnt) 3782 if (forkcnt)
3357 { 3783 {
3358 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3784 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3359 EV_INVOKE_PENDING; 3785 EV_INVOKE_PENDING;
3360 } 3786 }
3361#endif 3787#endif
3362 3788
3363#if EV_PREPARE_ENABLE 3789#if EV_PREPARE_ENABLE
3364 /* queue prepare watchers (and execute them) */ 3790 /* queue prepare watchers (and execute them) */
3365 if (expect_false (preparecnt)) 3791 if (ecb_expect_false (preparecnt))
3366 { 3792 {
3367 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3793 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3368 EV_INVOKE_PENDING; 3794 EV_INVOKE_PENDING;
3369 } 3795 }
3370#endif 3796#endif
3371 3797
3372 if (expect_false (loop_done)) 3798 if (ecb_expect_false (loop_done))
3373 break; 3799 break;
3374 3800
3375 /* we might have forked, so reify kernel state if necessary */ 3801 /* we might have forked, so reify kernel state if necessary */
3376 if (expect_false (postfork)) 3802 if (ecb_expect_false (postfork))
3377 loop_fork (EV_A); 3803 loop_fork (EV_A);
3378 3804
3379 /* update fd-related kernel structures */ 3805 /* update fd-related kernel structures */
3380 fd_reify (EV_A); 3806 fd_reify (EV_A);
3381 3807
… …
3386 3812
3387 /* remember old timestamp for io_blocktime calculation */ 3813 /* remember old timestamp for io_blocktime calculation */
3388 ev_tstamp prev_mn_now = mn_now; 3814 ev_tstamp prev_mn_now = mn_now;
3389 3815
3390 /* update time to cancel out callback processing overhead */ 3816 /* update time to cancel out callback processing overhead */
3391 time_update (EV_A_ 1e100); 3817 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3392 3818
3393 /* from now on, we want a pipe-wake-up */ 3819 /* from now on, we want a pipe-wake-up */
3394 pipe_write_wanted = 1; 3820 pipe_write_wanted = 1;
3395 3821
3396 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3822 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3397 3823
3398 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3824 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3399 { 3825 {
3400 waittime = MAX_BLOCKTIME; 3826 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3401 3827
3402 if (timercnt) 3828 if (timercnt)
3403 { 3829 {
3404 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3830 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3405 if (waittime > to) waittime = to; 3831 if (waittime > to) waittime = to;
… …
3412 if (waittime > to) waittime = to; 3838 if (waittime > to) waittime = to;
3413 } 3839 }
3414#endif 3840#endif
3415 3841
3416 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3842 /* don't let timeouts decrease the waittime below timeout_blocktime */
3417 if (expect_false (waittime < timeout_blocktime)) 3843 if (ecb_expect_false (waittime < timeout_blocktime))
3418 waittime = timeout_blocktime; 3844 waittime = timeout_blocktime;
3419 3845
3420 /* at this point, we NEED to wait, so we have to ensure */ 3846 /* at this point, we NEED to wait, so we have to ensure */
3421 /* to pass a minimum nonzero value to the backend */ 3847 /* to pass a minimum nonzero value to the backend */
3422 if (expect_false (waittime < backend_mintime)) 3848 if (ecb_expect_false (waittime < backend_mintime))
3423 waittime = backend_mintime; 3849 waittime = backend_mintime;
3424 3850
3425 /* extra check because io_blocktime is commonly 0 */ 3851 /* extra check because io_blocktime is commonly 0 */
3426 if (expect_false (io_blocktime)) 3852 if (ecb_expect_false (io_blocktime))
3427 { 3853 {
3428 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3854 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3429 3855
3430 if (sleeptime > waittime - backend_mintime) 3856 if (sleeptime > waittime - backend_mintime)
3431 sleeptime = waittime - backend_mintime; 3857 sleeptime = waittime - backend_mintime;
3432 3858
3433 if (expect_true (sleeptime > 0.)) 3859 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3434 { 3860 {
3435 ev_sleep (sleeptime); 3861 ev_sleep (sleeptime);
3436 waittime -= sleeptime; 3862 waittime -= sleeptime;
3437 } 3863 }
3438 } 3864 }
… …
3452 { 3878 {
3453 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3879 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3454 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3880 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3455 } 3881 }
3456 3882
3457
3458 /* update ev_rt_now, do magic */ 3883 /* update ev_rt_now, do magic */
3459 time_update (EV_A_ waittime + sleeptime); 3884 time_update (EV_A_ waittime + sleeptime);
3460 } 3885 }
3461 3886
3462 /* queue pending timers and reschedule them */ 3887 /* queue pending timers and reschedule them */
… …
3470 idle_reify (EV_A); 3895 idle_reify (EV_A);
3471#endif 3896#endif
3472 3897
3473#if EV_CHECK_ENABLE 3898#if EV_CHECK_ENABLE
3474 /* queue check watchers, to be executed first */ 3899 /* queue check watchers, to be executed first */
3475 if (expect_false (checkcnt)) 3900 if (ecb_expect_false (checkcnt))
3476 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3901 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3477#endif 3902#endif
3478 3903
3479 EV_INVOKE_PENDING; 3904 EV_INVOKE_PENDING;
3480 } 3905 }
3481 while (expect_true ( 3906 while (ecb_expect_true (
3482 activecnt 3907 activecnt
3483 && !loop_done 3908 && !loop_done
3484 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3909 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3485 )); 3910 ));
3486 3911
… …
3493 3918
3494 return activecnt; 3919 return activecnt;
3495} 3920}
3496 3921
3497void 3922void
3498ev_break (EV_P_ int how) EV_THROW 3923ev_break (EV_P_ int how) EV_NOEXCEPT
3499{ 3924{
3500 loop_done = how; 3925 loop_done = how;
3501} 3926}
3502 3927
3503void 3928void
3504ev_ref (EV_P) EV_THROW 3929ev_ref (EV_P) EV_NOEXCEPT
3505{ 3930{
3506 ++activecnt; 3931 ++activecnt;
3507} 3932}
3508 3933
3509void 3934void
3510ev_unref (EV_P) EV_THROW 3935ev_unref (EV_P) EV_NOEXCEPT
3511{ 3936{
3512 --activecnt; 3937 --activecnt;
3513} 3938}
3514 3939
3515void 3940void
3516ev_now_update (EV_P) EV_THROW 3941ev_now_update (EV_P) EV_NOEXCEPT
3517{ 3942{
3518 time_update (EV_A_ 1e100); 3943 time_update (EV_A_ EV_TSTAMP_HUGE);
3519} 3944}
3520 3945
3521void 3946void
3522ev_suspend (EV_P) EV_THROW 3947ev_suspend (EV_P) EV_NOEXCEPT
3523{ 3948{
3524 ev_now_update (EV_A); 3949 ev_now_update (EV_A);
3525} 3950}
3526 3951
3527void 3952void
3528ev_resume (EV_P) EV_THROW 3953ev_resume (EV_P) EV_NOEXCEPT
3529{ 3954{
3530 ev_tstamp mn_prev = mn_now; 3955 ev_tstamp mn_prev = mn_now;
3531 3956
3532 ev_now_update (EV_A); 3957 ev_now_update (EV_A);
3533 timers_reschedule (EV_A_ mn_now - mn_prev); 3958 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3550inline_size void 3975inline_size void
3551wlist_del (WL *head, WL elem) 3976wlist_del (WL *head, WL elem)
3552{ 3977{
3553 while (*head) 3978 while (*head)
3554 { 3979 {
3555 if (expect_true (*head == elem)) 3980 if (ecb_expect_true (*head == elem))
3556 { 3981 {
3557 *head = elem->next; 3982 *head = elem->next;
3558 break; 3983 break;
3559 } 3984 }
3560 3985
… …
3572 w->pending = 0; 3997 w->pending = 0;
3573 } 3998 }
3574} 3999}
3575 4000
3576int 4001int
3577ev_clear_pending (EV_P_ void *w) EV_THROW 4002ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3578{ 4003{
3579 W w_ = (W)w; 4004 W w_ = (W)w;
3580 int pending = w_->pending; 4005 int pending = w_->pending;
3581 4006
3582 if (expect_true (pending)) 4007 if (ecb_expect_true (pending))
3583 { 4008 {
3584 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4009 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3585 p->w = (W)&pending_w; 4010 p->w = (W)&pending_w;
3586 w_->pending = 0; 4011 w_->pending = 0;
3587 return p->events; 4012 return p->events;
… …
3614 w->active = 0; 4039 w->active = 0;
3615} 4040}
3616 4041
3617/*****************************************************************************/ 4042/*****************************************************************************/
3618 4043
3619void noinline 4044ecb_noinline
4045void
3620ev_io_start (EV_P_ ev_io *w) EV_THROW 4046ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3621{ 4047{
3622 int fd = w->fd; 4048 int fd = w->fd;
3623 4049
3624 if (expect_false (ev_is_active (w))) 4050 if (ecb_expect_false (ev_is_active (w)))
3625 return; 4051 return;
3626 4052
3627 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4053 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3628 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4054 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3629 4055
4056#if EV_VERIFY >= 2
4057 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4058#endif
3630 EV_FREQUENT_CHECK; 4059 EV_FREQUENT_CHECK;
3631 4060
3632 ev_start (EV_A_ (W)w, 1); 4061 ev_start (EV_A_ (W)w, 1);
3633 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4062 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3634 wlist_add (&anfds[fd].head, (WL)w); 4063 wlist_add (&anfds[fd].head, (WL)w);
3635 4064
3636 /* common bug, apparently */ 4065 /* common bug, apparently */
3637 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4066 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3638 4067
… …
3640 w->events &= ~EV__IOFDSET; 4069 w->events &= ~EV__IOFDSET;
3641 4070
3642 EV_FREQUENT_CHECK; 4071 EV_FREQUENT_CHECK;
3643} 4072}
3644 4073
3645void noinline 4074ecb_noinline
4075void
3646ev_io_stop (EV_P_ ev_io *w) EV_THROW 4076ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3647{ 4077{
3648 clear_pending (EV_A_ (W)w); 4078 clear_pending (EV_A_ (W)w);
3649 if (expect_false (!ev_is_active (w))) 4079 if (ecb_expect_false (!ev_is_active (w)))
3650 return; 4080 return;
3651 4081
3652 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4082 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3653 4083
4084#if EV_VERIFY >= 2
4085 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4086#endif
3654 EV_FREQUENT_CHECK; 4087 EV_FREQUENT_CHECK;
3655 4088
3656 wlist_del (&anfds[w->fd].head, (WL)w); 4089 wlist_del (&anfds[w->fd].head, (WL)w);
3657 ev_stop (EV_A_ (W)w); 4090 ev_stop (EV_A_ (W)w);
3658 4091
3659 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4092 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3660 4093
3661 EV_FREQUENT_CHECK; 4094 EV_FREQUENT_CHECK;
3662} 4095}
3663 4096
3664void noinline 4097ecb_noinline
4098void
3665ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4099ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3666{ 4100{
3667 if (expect_false (ev_is_active (w))) 4101 if (ecb_expect_false (ev_is_active (w)))
3668 return; 4102 return;
3669 4103
3670 ev_at (w) += mn_now; 4104 ev_at (w) += mn_now;
3671 4105
3672 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4106 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3673 4107
3674 EV_FREQUENT_CHECK; 4108 EV_FREQUENT_CHECK;
3675 4109
3676 ++timercnt; 4110 ++timercnt;
3677 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4111 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3678 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4112 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3679 ANHE_w (timers [ev_active (w)]) = (WT)w; 4113 ANHE_w (timers [ev_active (w)]) = (WT)w;
3680 ANHE_at_cache (timers [ev_active (w)]); 4114 ANHE_at_cache (timers [ev_active (w)]);
3681 upheap (timers, ev_active (w)); 4115 upheap (timers, ev_active (w));
3682 4116
3683 EV_FREQUENT_CHECK; 4117 EV_FREQUENT_CHECK;
3684 4118
3685 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4119 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3686} 4120}
3687 4121
3688void noinline 4122ecb_noinline
4123void
3689ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4124ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3690{ 4125{
3691 clear_pending (EV_A_ (W)w); 4126 clear_pending (EV_A_ (W)w);
3692 if (expect_false (!ev_is_active (w))) 4127 if (ecb_expect_false (!ev_is_active (w)))
3693 return; 4128 return;
3694 4129
3695 EV_FREQUENT_CHECK; 4130 EV_FREQUENT_CHECK;
3696 4131
3697 { 4132 {
… …
3699 4134
3700 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4135 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3701 4136
3702 --timercnt; 4137 --timercnt;
3703 4138
3704 if (expect_true (active < timercnt + HEAP0)) 4139 if (ecb_expect_true (active < timercnt + HEAP0))
3705 { 4140 {
3706 timers [active] = timers [timercnt + HEAP0]; 4141 timers [active] = timers [timercnt + HEAP0];
3707 adjustheap (timers, timercnt, active); 4142 adjustheap (timers, timercnt, active);
3708 } 4143 }
3709 } 4144 }
… …
3713 ev_stop (EV_A_ (W)w); 4148 ev_stop (EV_A_ (W)w);
3714 4149
3715 EV_FREQUENT_CHECK; 4150 EV_FREQUENT_CHECK;
3716} 4151}
3717 4152
3718void noinline 4153ecb_noinline
4154void
3719ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4155ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3720{ 4156{
3721 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3722 4158
3723 clear_pending (EV_A_ (W)w); 4159 clear_pending (EV_A_ (W)w);
3724 4160
… …
3741 4177
3742 EV_FREQUENT_CHECK; 4178 EV_FREQUENT_CHECK;
3743} 4179}
3744 4180
3745ev_tstamp 4181ev_tstamp
3746ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4182ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3747{ 4183{
3748 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4184 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3749} 4185}
3750 4186
3751#if EV_PERIODIC_ENABLE 4187#if EV_PERIODIC_ENABLE
3752void noinline 4188ecb_noinline
4189void
3753ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4190ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3754{ 4191{
3755 if (expect_false (ev_is_active (w))) 4192 if (ecb_expect_false (ev_is_active (w)))
3756 return; 4193 return;
3757 4194
3758 if (w->reschedule_cb) 4195 if (w->reschedule_cb)
3759 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4196 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3760 else if (w->interval) 4197 else if (w->interval)
… …
3767 4204
3768 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
3769 4206
3770 ++periodiccnt; 4207 ++periodiccnt;
3771 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4208 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3772 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4209 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3773 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4210 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3774 ANHE_at_cache (periodics [ev_active (w)]); 4211 ANHE_at_cache (periodics [ev_active (w)]);
3775 upheap (periodics, ev_active (w)); 4212 upheap (periodics, ev_active (w));
3776 4213
3777 EV_FREQUENT_CHECK; 4214 EV_FREQUENT_CHECK;
3778 4215
3779 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4216 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3780} 4217}
3781 4218
3782void noinline 4219ecb_noinline
4220void
3783ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4221ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3784{ 4222{
3785 clear_pending (EV_A_ (W)w); 4223 clear_pending (EV_A_ (W)w);
3786 if (expect_false (!ev_is_active (w))) 4224 if (ecb_expect_false (!ev_is_active (w)))
3787 return; 4225 return;
3788 4226
3789 EV_FREQUENT_CHECK; 4227 EV_FREQUENT_CHECK;
3790 4228
3791 { 4229 {
… …
3793 4231
3794 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4232 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3795 4233
3796 --periodiccnt; 4234 --periodiccnt;
3797 4235
3798 if (expect_true (active < periodiccnt + HEAP0)) 4236 if (ecb_expect_true (active < periodiccnt + HEAP0))
3799 { 4237 {
3800 periodics [active] = periodics [periodiccnt + HEAP0]; 4238 periodics [active] = periodics [periodiccnt + HEAP0];
3801 adjustheap (periodics, periodiccnt, active); 4239 adjustheap (periodics, periodiccnt, active);
3802 } 4240 }
3803 } 4241 }
… …
3805 ev_stop (EV_A_ (W)w); 4243 ev_stop (EV_A_ (W)w);
3806 4244
3807 EV_FREQUENT_CHECK; 4245 EV_FREQUENT_CHECK;
3808} 4246}
3809 4247
3810void noinline 4248ecb_noinline
4249void
3811ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4250ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3812{ 4251{
3813 /* TODO: use adjustheap and recalculation */ 4252 /* TODO: use adjustheap and recalculation */
3814 ev_periodic_stop (EV_A_ w); 4253 ev_periodic_stop (EV_A_ w);
3815 ev_periodic_start (EV_A_ w); 4254 ev_periodic_start (EV_A_ w);
3816} 4255}
… …
3820# define SA_RESTART 0 4259# define SA_RESTART 0
3821#endif 4260#endif
3822 4261
3823#if EV_SIGNAL_ENABLE 4262#if EV_SIGNAL_ENABLE
3824 4263
3825void noinline 4264ecb_noinline
4265void
3826ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4266ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3827{ 4267{
3828 if (expect_false (ev_is_active (w))) 4268 if (ecb_expect_false (ev_is_active (w)))
3829 return; 4269 return;
3830 4270
3831 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4271 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3832 4272
3833#if EV_MULTIPLICITY 4273#if EV_MULTIPLICITY
… …
3902 } 4342 }
3903 4343
3904 EV_FREQUENT_CHECK; 4344 EV_FREQUENT_CHECK;
3905} 4345}
3906 4346
3907void noinline 4347ecb_noinline
4348void
3908ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4349ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3909{ 4350{
3910 clear_pending (EV_A_ (W)w); 4351 clear_pending (EV_A_ (W)w);
3911 if (expect_false (!ev_is_active (w))) 4352 if (ecb_expect_false (!ev_is_active (w)))
3912 return; 4353 return;
3913 4354
3914 EV_FREQUENT_CHECK; 4355 EV_FREQUENT_CHECK;
3915 4356
3916 wlist_del (&signals [w->signum - 1].head, (WL)w); 4357 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3944#endif 4385#endif
3945 4386
3946#if EV_CHILD_ENABLE 4387#if EV_CHILD_ENABLE
3947 4388
3948void 4389void
3949ev_child_start (EV_P_ ev_child *w) EV_THROW 4390ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3950{ 4391{
3951#if EV_MULTIPLICITY 4392#if EV_MULTIPLICITY
3952 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4393 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3953#endif 4394#endif
3954 if (expect_false (ev_is_active (w))) 4395 if (ecb_expect_false (ev_is_active (w)))
3955 return; 4396 return;
3956 4397
3957 EV_FREQUENT_CHECK; 4398 EV_FREQUENT_CHECK;
3958 4399
3959 ev_start (EV_A_ (W)w, 1); 4400 ev_start (EV_A_ (W)w, 1);
… …
3961 4402
3962 EV_FREQUENT_CHECK; 4403 EV_FREQUENT_CHECK;
3963} 4404}
3964 4405
3965void 4406void
3966ev_child_stop (EV_P_ ev_child *w) EV_THROW 4407ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3967{ 4408{
3968 clear_pending (EV_A_ (W)w); 4409 clear_pending (EV_A_ (W)w);
3969 if (expect_false (!ev_is_active (w))) 4410 if (ecb_expect_false (!ev_is_active (w)))
3970 return; 4411 return;
3971 4412
3972 EV_FREQUENT_CHECK; 4413 EV_FREQUENT_CHECK;
3973 4414
3974 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4415 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3988 4429
3989#define DEF_STAT_INTERVAL 5.0074891 4430#define DEF_STAT_INTERVAL 5.0074891
3990#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4431#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3991#define MIN_STAT_INTERVAL 0.1074891 4432#define MIN_STAT_INTERVAL 0.1074891
3992 4433
3993static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4434ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3994 4435
3995#if EV_USE_INOTIFY 4436#if EV_USE_INOTIFY
3996 4437
3997/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4438/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3998# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4439# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3999 4440
4000static void noinline 4441ecb_noinline
4442static void
4001infy_add (EV_P_ ev_stat *w) 4443infy_add (EV_P_ ev_stat *w)
4002{ 4444{
4003 w->wd = inotify_add_watch (fs_fd, w->path, 4445 w->wd = inotify_add_watch (fs_fd, w->path,
4004 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4446 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4005 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4447 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4069 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4511 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4070 ev_timer_again (EV_A_ &w->timer); 4512 ev_timer_again (EV_A_ &w->timer);
4071 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4513 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4072} 4514}
4073 4515
4074static void noinline 4516ecb_noinline
4517static void
4075infy_del (EV_P_ ev_stat *w) 4518infy_del (EV_P_ ev_stat *w)
4076{ 4519{
4077 int slot; 4520 int slot;
4078 int wd = w->wd; 4521 int wd = w->wd;
4079 4522
… …
4086 4529
4087 /* remove this watcher, if others are watching it, they will rearm */ 4530 /* remove this watcher, if others are watching it, they will rearm */
4088 inotify_rm_watch (fs_fd, wd); 4531 inotify_rm_watch (fs_fd, wd);
4089} 4532}
4090 4533
4091static void noinline 4534ecb_noinline
4535static void
4092infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4536infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4093{ 4537{
4094 if (slot < 0) 4538 if (slot < 0)
4095 /* overflow, need to check for all hash slots */ 4539 /* overflow, need to check for all hash slots */
4096 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4540 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4132 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4576 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4133 ofs += sizeof (struct inotify_event) + ev->len; 4577 ofs += sizeof (struct inotify_event) + ev->len;
4134 } 4578 }
4135} 4579}
4136 4580
4137inline_size void ecb_cold 4581inline_size ecb_cold
4582void
4138ev_check_2625 (EV_P) 4583ev_check_2625 (EV_P)
4139{ 4584{
4140 /* kernels < 2.6.25 are borked 4585 /* kernels < 2.6.25 are borked
4141 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4586 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4142 */ 4587 */
… …
4232#else 4677#else
4233# define EV_LSTAT(p,b) lstat (p, b) 4678# define EV_LSTAT(p,b) lstat (p, b)
4234#endif 4679#endif
4235 4680
4236void 4681void
4237ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4682ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4238{ 4683{
4239 if (lstat (w->path, &w->attr) < 0) 4684 if (lstat (w->path, &w->attr) < 0)
4240 w->attr.st_nlink = 0; 4685 w->attr.st_nlink = 0;
4241 else if (!w->attr.st_nlink) 4686 else if (!w->attr.st_nlink)
4242 w->attr.st_nlink = 1; 4687 w->attr.st_nlink = 1;
4243} 4688}
4244 4689
4245static void noinline 4690ecb_noinline
4691static void
4246stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4692stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4247{ 4693{
4248 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4694 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4249 4695
4250 ev_statdata prev = w->attr; 4696 ev_statdata prev = w->attr;
… …
4281 ev_feed_event (EV_A_ w, EV_STAT); 4727 ev_feed_event (EV_A_ w, EV_STAT);
4282 } 4728 }
4283} 4729}
4284 4730
4285void 4731void
4286ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4732ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4287{ 4733{
4288 if (expect_false (ev_is_active (w))) 4734 if (ecb_expect_false (ev_is_active (w)))
4289 return; 4735 return;
4290 4736
4291 ev_stat_stat (EV_A_ w); 4737 ev_stat_stat (EV_A_ w);
4292 4738
4293 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4739 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4312 4758
4313 EV_FREQUENT_CHECK; 4759 EV_FREQUENT_CHECK;
4314} 4760}
4315 4761
4316void 4762void
4317ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4763ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4318{ 4764{
4319 clear_pending (EV_A_ (W)w); 4765 clear_pending (EV_A_ (W)w);
4320 if (expect_false (!ev_is_active (w))) 4766 if (ecb_expect_false (!ev_is_active (w)))
4321 return; 4767 return;
4322 4768
4323 EV_FREQUENT_CHECK; 4769 EV_FREQUENT_CHECK;
4324 4770
4325#if EV_USE_INOTIFY 4771#if EV_USE_INOTIFY
… …
4338} 4784}
4339#endif 4785#endif
4340 4786
4341#if EV_IDLE_ENABLE 4787#if EV_IDLE_ENABLE
4342void 4788void
4343ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4789ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4344{ 4790{
4345 if (expect_false (ev_is_active (w))) 4791 if (ecb_expect_false (ev_is_active (w)))
4346 return; 4792 return;
4347 4793
4348 pri_adjust (EV_A_ (W)w); 4794 pri_adjust (EV_A_ (W)w);
4349 4795
4350 EV_FREQUENT_CHECK; 4796 EV_FREQUENT_CHECK;
… …
4353 int active = ++idlecnt [ABSPRI (w)]; 4799 int active = ++idlecnt [ABSPRI (w)];
4354 4800
4355 ++idleall; 4801 ++idleall;
4356 ev_start (EV_A_ (W)w, active); 4802 ev_start (EV_A_ (W)w, active);
4357 4803
4358 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4804 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4359 idles [ABSPRI (w)][active - 1] = w; 4805 idles [ABSPRI (w)][active - 1] = w;
4360 } 4806 }
4361 4807
4362 EV_FREQUENT_CHECK; 4808 EV_FREQUENT_CHECK;
4363} 4809}
4364 4810
4365void 4811void
4366ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4812ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4367{ 4813{
4368 clear_pending (EV_A_ (W)w); 4814 clear_pending (EV_A_ (W)w);
4369 if (expect_false (!ev_is_active (w))) 4815 if (ecb_expect_false (!ev_is_active (w)))
4370 return; 4816 return;
4371 4817
4372 EV_FREQUENT_CHECK; 4818 EV_FREQUENT_CHECK;
4373 4819
4374 { 4820 {
… …
4385} 4831}
4386#endif 4832#endif
4387 4833
4388#if EV_PREPARE_ENABLE 4834#if EV_PREPARE_ENABLE
4389void 4835void
4390ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4836ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4391{ 4837{
4392 if (expect_false (ev_is_active (w))) 4838 if (ecb_expect_false (ev_is_active (w)))
4393 return; 4839 return;
4394 4840
4395 EV_FREQUENT_CHECK; 4841 EV_FREQUENT_CHECK;
4396 4842
4397 ev_start (EV_A_ (W)w, ++preparecnt); 4843 ev_start (EV_A_ (W)w, ++preparecnt);
4398 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4844 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4399 prepares [preparecnt - 1] = w; 4845 prepares [preparecnt - 1] = w;
4400 4846
4401 EV_FREQUENT_CHECK; 4847 EV_FREQUENT_CHECK;
4402} 4848}
4403 4849
4404void 4850void
4405ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4851ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4406{ 4852{
4407 clear_pending (EV_A_ (W)w); 4853 clear_pending (EV_A_ (W)w);
4408 if (expect_false (!ev_is_active (w))) 4854 if (ecb_expect_false (!ev_is_active (w)))
4409 return; 4855 return;
4410 4856
4411 EV_FREQUENT_CHECK; 4857 EV_FREQUENT_CHECK;
4412 4858
4413 { 4859 {
… …
4423} 4869}
4424#endif 4870#endif
4425 4871
4426#if EV_CHECK_ENABLE 4872#if EV_CHECK_ENABLE
4427void 4873void
4428ev_check_start (EV_P_ ev_check *w) EV_THROW 4874ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4429{ 4875{
4430 if (expect_false (ev_is_active (w))) 4876 if (ecb_expect_false (ev_is_active (w)))
4431 return; 4877 return;
4432 4878
4433 EV_FREQUENT_CHECK; 4879 EV_FREQUENT_CHECK;
4434 4880
4435 ev_start (EV_A_ (W)w, ++checkcnt); 4881 ev_start (EV_A_ (W)w, ++checkcnt);
4436 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4882 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4437 checks [checkcnt - 1] = w; 4883 checks [checkcnt - 1] = w;
4438 4884
4439 EV_FREQUENT_CHECK; 4885 EV_FREQUENT_CHECK;
4440} 4886}
4441 4887
4442void 4888void
4443ev_check_stop (EV_P_ ev_check *w) EV_THROW 4889ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4444{ 4890{
4445 clear_pending (EV_A_ (W)w); 4891 clear_pending (EV_A_ (W)w);
4446 if (expect_false (!ev_is_active (w))) 4892 if (ecb_expect_false (!ev_is_active (w)))
4447 return; 4893 return;
4448 4894
4449 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
4450 4896
4451 { 4897 {
… …
4460 EV_FREQUENT_CHECK; 4906 EV_FREQUENT_CHECK;
4461} 4907}
4462#endif 4908#endif
4463 4909
4464#if EV_EMBED_ENABLE 4910#if EV_EMBED_ENABLE
4465void noinline 4911ecb_noinline
4912void
4466ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4913ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4467{ 4914{
4468 ev_run (w->other, EVRUN_NOWAIT); 4915 ev_run (w->other, EVRUN_NOWAIT);
4469} 4916}
4470 4917
4471static void 4918static void
… …
4519 ev_idle_stop (EV_A_ idle); 4966 ev_idle_stop (EV_A_ idle);
4520} 4967}
4521#endif 4968#endif
4522 4969
4523void 4970void
4524ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4971ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4525{ 4972{
4526 if (expect_false (ev_is_active (w))) 4973 if (ecb_expect_false (ev_is_active (w)))
4527 return; 4974 return;
4528 4975
4529 { 4976 {
4530 EV_P = w->other; 4977 EV_P = w->other;
4531 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4978 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4550 4997
4551 EV_FREQUENT_CHECK; 4998 EV_FREQUENT_CHECK;
4552} 4999}
4553 5000
4554void 5001void
4555ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5002ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4556{ 5003{
4557 clear_pending (EV_A_ (W)w); 5004 clear_pending (EV_A_ (W)w);
4558 if (expect_false (!ev_is_active (w))) 5005 if (ecb_expect_false (!ev_is_active (w)))
4559 return; 5006 return;
4560 5007
4561 EV_FREQUENT_CHECK; 5008 EV_FREQUENT_CHECK;
4562 5009
4563 ev_io_stop (EV_A_ &w->io); 5010 ev_io_stop (EV_A_ &w->io);
… …
4570} 5017}
4571#endif 5018#endif
4572 5019
4573#if EV_FORK_ENABLE 5020#if EV_FORK_ENABLE
4574void 5021void
4575ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5022ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4576{ 5023{
4577 if (expect_false (ev_is_active (w))) 5024 if (ecb_expect_false (ev_is_active (w)))
4578 return; 5025 return;
4579 5026
4580 EV_FREQUENT_CHECK; 5027 EV_FREQUENT_CHECK;
4581 5028
4582 ev_start (EV_A_ (W)w, ++forkcnt); 5029 ev_start (EV_A_ (W)w, ++forkcnt);
4583 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5030 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4584 forks [forkcnt - 1] = w; 5031 forks [forkcnt - 1] = w;
4585 5032
4586 EV_FREQUENT_CHECK; 5033 EV_FREQUENT_CHECK;
4587} 5034}
4588 5035
4589void 5036void
4590ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5037ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4591{ 5038{
4592 clear_pending (EV_A_ (W)w); 5039 clear_pending (EV_A_ (W)w);
4593 if (expect_false (!ev_is_active (w))) 5040 if (ecb_expect_false (!ev_is_active (w)))
4594 return; 5041 return;
4595 5042
4596 EV_FREQUENT_CHECK; 5043 EV_FREQUENT_CHECK;
4597 5044
4598 { 5045 {
… …
4608} 5055}
4609#endif 5056#endif
4610 5057
4611#if EV_CLEANUP_ENABLE 5058#if EV_CLEANUP_ENABLE
4612void 5059void
4613ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5060ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4614{ 5061{
4615 if (expect_false (ev_is_active (w))) 5062 if (ecb_expect_false (ev_is_active (w)))
4616 return; 5063 return;
4617 5064
4618 EV_FREQUENT_CHECK; 5065 EV_FREQUENT_CHECK;
4619 5066
4620 ev_start (EV_A_ (W)w, ++cleanupcnt); 5067 ev_start (EV_A_ (W)w, ++cleanupcnt);
4621 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5068 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4622 cleanups [cleanupcnt - 1] = w; 5069 cleanups [cleanupcnt - 1] = w;
4623 5070
4624 /* cleanup watchers should never keep a refcount on the loop */ 5071 /* cleanup watchers should never keep a refcount on the loop */
4625 ev_unref (EV_A); 5072 ev_unref (EV_A);
4626 EV_FREQUENT_CHECK; 5073 EV_FREQUENT_CHECK;
4627} 5074}
4628 5075
4629void 5076void
4630ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5077ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4631{ 5078{
4632 clear_pending (EV_A_ (W)w); 5079 clear_pending (EV_A_ (W)w);
4633 if (expect_false (!ev_is_active (w))) 5080 if (ecb_expect_false (!ev_is_active (w)))
4634 return; 5081 return;
4635 5082
4636 EV_FREQUENT_CHECK; 5083 EV_FREQUENT_CHECK;
4637 ev_ref (EV_A); 5084 ev_ref (EV_A);
4638 5085
… …
4649} 5096}
4650#endif 5097#endif
4651 5098
4652#if EV_ASYNC_ENABLE 5099#if EV_ASYNC_ENABLE
4653void 5100void
4654ev_async_start (EV_P_ ev_async *w) EV_THROW 5101ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4655{ 5102{
4656 if (expect_false (ev_is_active (w))) 5103 if (ecb_expect_false (ev_is_active (w)))
4657 return; 5104 return;
4658 5105
4659 w->sent = 0; 5106 w->sent = 0;
4660 5107
4661 evpipe_init (EV_A); 5108 evpipe_init (EV_A);
4662 5109
4663 EV_FREQUENT_CHECK; 5110 EV_FREQUENT_CHECK;
4664 5111
4665 ev_start (EV_A_ (W)w, ++asynccnt); 5112 ev_start (EV_A_ (W)w, ++asynccnt);
4666 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5113 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4667 asyncs [asynccnt - 1] = w; 5114 asyncs [asynccnt - 1] = w;
4668 5115
4669 EV_FREQUENT_CHECK; 5116 EV_FREQUENT_CHECK;
4670} 5117}
4671 5118
4672void 5119void
4673ev_async_stop (EV_P_ ev_async *w) EV_THROW 5120ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4674{ 5121{
4675 clear_pending (EV_A_ (W)w); 5122 clear_pending (EV_A_ (W)w);
4676 if (expect_false (!ev_is_active (w))) 5123 if (ecb_expect_false (!ev_is_active (w)))
4677 return; 5124 return;
4678 5125
4679 EV_FREQUENT_CHECK; 5126 EV_FREQUENT_CHECK;
4680 5127
4681 { 5128 {
… …
4689 5136
4690 EV_FREQUENT_CHECK; 5137 EV_FREQUENT_CHECK;
4691} 5138}
4692 5139
4693void 5140void
4694ev_async_send (EV_P_ ev_async *w) EV_THROW 5141ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4695{ 5142{
4696 w->sent = 1; 5143 w->sent = 1;
4697 evpipe_write (EV_A_ &async_pending); 5144 evpipe_write (EV_A_ &async_pending);
4698} 5145}
4699#endif 5146#endif
… …
4736 5183
4737 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5184 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4738} 5185}
4739 5186
4740void 5187void
4741ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5188ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4742{ 5189{
4743 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5190 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4744
4745 if (expect_false (!once))
4746 {
4747 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4748 return;
4749 }
4750 5191
4751 once->cb = cb; 5192 once->cb = cb;
4752 once->arg = arg; 5193 once->arg = arg;
4753 5194
4754 ev_init (&once->io, once_cb_io); 5195 ev_init (&once->io, once_cb_io);
… …
4767} 5208}
4768 5209
4769/*****************************************************************************/ 5210/*****************************************************************************/
4770 5211
4771#if EV_WALK_ENABLE 5212#if EV_WALK_ENABLE
4772void ecb_cold 5213ecb_cold
5214void
4773ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5215ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4774{ 5216{
4775 int i, j; 5217 int i, j;
4776 ev_watcher_list *wl, *wn; 5218 ev_watcher_list *wl, *wn;
4777 5219
4778 if (types & (EV_IO | EV_EMBED)) 5220 if (types & (EV_IO | EV_EMBED))

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