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Comparing libev/ev.c (file contents):
Revision 1.473 by root, Tue Sep 9 21:51:35 2014 UTC vs.
Revision 1.514 by root, Fri Dec 20 05:20:50 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 *
… …
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
165#endif 183#endif
184
185/* OS X, in its infinite idiocy, actually HARDCODES
186 * a limit of 1024 into their select. Where people have brains,
187 * OS X engineers apparently have a vacuum. Or maybe they were
188 * ordered to have a vacuum, or they do anything for money.
189 * This might help. Or not.
190 * Note that this must be defined early, as other include files
191 * will rely on this define as well.
192 */
193#define _DARWIN_UNLIMITED_SELECT 1
166 194
167#include <stdlib.h> 195#include <stdlib.h>
168#include <string.h> 196#include <string.h>
169#include <fcntl.h> 197#include <fcntl.h>
170#include <stddef.h> 198#include <stddef.h>
… …
208# ifndef EV_SELECT_IS_WINSOCKET 236# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 237# define EV_SELECT_IS_WINSOCKET 1
210# endif 238# endif
211# undef EV_AVOID_STDIO 239# undef EV_AVOID_STDIO
212#endif 240#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 241
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 242/* this block tries to deduce configuration from header-defined symbols and defaults */
223 243
224/* try to deduce the maximum number of signals on this platform */ 244/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 245#if defined EV_NSIG
… …
313 333
314#ifndef EV_USE_PORT 334#ifndef EV_USE_PORT
315# define EV_USE_PORT 0 335# define EV_USE_PORT 0
316#endif 336#endif
317 337
338#ifndef EV_USE_LINUXAIO
339# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
340# define EV_USE_LINUXAIO 1
341# else
342# define EV_USE_LINUXAIO 0
343# endif
344#endif
345
346#ifndef EV_USE_IOURING
347# if __linux /* later checks might disable again */
348# define EV_USE_IOURING 1
349# else
350# define EV_USE_IOURING 0
351# endif
352#endif
353
318#ifndef EV_USE_INOTIFY 354#ifndef EV_USE_INOTIFY
319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 355# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
320# define EV_USE_INOTIFY EV_FEATURE_OS 356# define EV_USE_INOTIFY EV_FEATURE_OS
321# else 357# else
322# define EV_USE_INOTIFY 0 358# define EV_USE_INOTIFY 0
… …
363 399
364#ifndef EV_HEAP_CACHE_AT 400#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 401# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 402#endif
367 403
368#ifdef ANDROID 404#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 405/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 406# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 407# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 408/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 409# undef EV_USE_CLOCK_SYSCALL
… …
387# include <sys/syscall.h> 423# include <sys/syscall.h>
388# ifdef SYS_clock_gettime 424# ifdef SYS_clock_gettime
389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 425# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
390# undef EV_USE_MONOTONIC 426# undef EV_USE_MONOTONIC
391# define EV_USE_MONOTONIC 1 427# define EV_USE_MONOTONIC 1
428# define EV_NEED_SYSCALL 1
392# else 429# else
393# undef EV_USE_CLOCK_SYSCALL 430# undef EV_USE_CLOCK_SYSCALL
394# define EV_USE_CLOCK_SYSCALL 0 431# define EV_USE_CLOCK_SYSCALL 0
395# endif 432# endif
396#endif 433#endif
… …
410#if !EV_STAT_ENABLE 447#if !EV_STAT_ENABLE
411# undef EV_USE_INOTIFY 448# undef EV_USE_INOTIFY
412# define EV_USE_INOTIFY 0 449# define EV_USE_INOTIFY 0
413#endif 450#endif
414 451
452#if __linux && EV_USE_IOURING
453# include <linux/version.h>
454# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
455# undef EV_USE_IOURING
456# define EV_USE_IOURING 0
457# endif
458#endif
459
415#if !EV_USE_NANOSLEEP 460#if !EV_USE_NANOSLEEP
416/* hp-ux has it in sys/time.h, which we unconditionally include above */ 461/* hp-ux has it in sys/time.h, which we unconditionally include above */
417# if !defined _WIN32 && !defined __hpux 462# if !defined _WIN32 && !defined __hpux
418# include <sys/select.h> 463# include <sys/select.h>
464# endif
465#endif
466
467#if EV_USE_LINUXAIO
468# include <sys/syscall.h>
469# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
470# define EV_NEED_SYSCALL 1
471# else
472# undef EV_USE_LINUXAIO
473# define EV_USE_LINUXAIO 0
474# endif
475#endif
476
477#if EV_USE_IOURING
478# include <sys/syscall.h>
479# if !SYS_io_uring_setup && __linux && !__alpha
480# define SYS_io_uring_setup 425
481# define SYS_io_uring_enter 426
482# define SYS_io_uring_wregister 427
483# endif
484# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
485# define EV_NEED_SYSCALL 1
486# else
487# undef EV_USE_IOURING
488# define EV_USE_IOURING 0
419# endif 489# endif
420#endif 490#endif
421 491
422#if EV_USE_INOTIFY 492#if EV_USE_INOTIFY
423# include <sys/statfs.h> 493# include <sys/statfs.h>
… …
465 uint32_t ssi_signo; 535 uint32_t ssi_signo;
466 char pad[128 - sizeof (uint32_t)]; 536 char pad[128 - sizeof (uint32_t)];
467}; 537};
468#endif 538#endif
469 539
470/**/ 540/*****************************************************************************/
471 541
472#if EV_VERIFY >= 3 542#if EV_VERIFY >= 3
473# define EV_FREQUENT_CHECK ev_verify (EV_A) 543# define EV_FREQUENT_CHECK ev_verify (EV_A)
474#else 544#else
475# define EV_FREQUENT_CHECK do { } while (0) 545# define EV_FREQUENT_CHECK do { } while (0)
… …
480 * This value is good at least till the year 4000. 550 * This value is good at least till the year 4000.
481 */ 551 */
482#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 552#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
483/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 553/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
484 554
485#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 555#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
486#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 556#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
487 557
558/* find a portable timestamp that is "always" in the future but fits into time_t.
559 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
560 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
561#define EV_TSTAMP_HUGE \
562 (sizeof (time_t) >= 8 ? 10000000000000. \
563 : 0 < (time_t)4294967295 ? 4294967295. \
564 : 2147483647.) \
565
566#ifndef EV_TS_CONST
567# define EV_TS_CONST(nv) nv
568# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
569# define EV_TS_FROM_USEC(us) us * 1e-6
488#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 570# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
489#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 571# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
572# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
573# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
574#endif
490 575
491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 576/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
492/* ECB.H BEGIN */ 577/* ECB.H BEGIN */
493/* 578/*
494 * libecb - http://software.schmorp.de/pkg/libecb 579 * libecb - http://software.schmorp.de/pkg/libecb
495 * 580 *
496 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> 581 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta 582 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved. 583 * All rights reserved.
499 * 584 *
500 * Redistribution and use in source and binary forms, with or without modifica- 585 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met: 586 * tion, are permitted provided that the following conditions are met:
… …
532 617
533#ifndef ECB_H 618#ifndef ECB_H
534#define ECB_H 619#define ECB_H
535 620
536/* 16 bits major, 16 bits minor */ 621/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010003 622#define ECB_VERSION 0x00010006
538 623
539#ifdef _WIN32 624#ifdef _WIN32
540 typedef signed char int8_t; 625 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 626 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 627 typedef signed short int16_t;
… …
559 typedef uint32_t uintptr_t; 644 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t; 645 typedef int32_t intptr_t;
561 #endif 646 #endif
562#else 647#else
563 #include <inttypes.h> 648 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU 649 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8 650 #define ECB_PTRSIZE 8
566 #else 651 #else
567 #define ECB_PTRSIZE 4 652 #define ECB_PTRSIZE 4
568 #endif 653 #endif
569#endif 654#endif
570 655
656#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
657#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
658
571/* work around x32 idiocy by defining proper macros */ 659/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 660#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
573 #if _ILP32 661 #if _ILP32
574 #define ECB_AMD64_X32 1 662 #define ECB_AMD64_X32 1
575 #else 663 #else
576 #define ECB_AMD64 1 664 #define ECB_AMD64 1
577 #endif 665 #endif
… …
582 * causing enormous grief in return for some better fake benchmark numbers. 670 * causing enormous grief in return for some better fake benchmark numbers.
583 * or so. 671 * or so.
584 * we try to detect these and simply assume they are not gcc - if they have 672 * we try to detect these and simply assume they are not gcc - if they have
585 * an issue with that they should have done it right in the first place. 673 * an issue with that they should have done it right in the first place.
586 */ 674 */
587#ifndef ECB_GCC_VERSION
588 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 675#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
589 #define ECB_GCC_VERSION(major,minor) 0 676 #define ECB_GCC_VERSION(major,minor) 0
590 #else 677#else
591 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 678 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
592 #endif 679#endif
680
681#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
682
683#if __clang__ && defined __has_builtin
684 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
685#else
686 #define ECB_CLANG_BUILTIN(x) 0
687#endif
688
689#if __clang__ && defined __has_extension
690 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
691#else
692 #define ECB_CLANG_EXTENSION(x) 0
593#endif 693#endif
594 694
595#define ECB_CPP (__cplusplus+0) 695#define ECB_CPP (__cplusplus+0)
596#define ECB_CPP11 (__cplusplus >= 201103L) 696#define ECB_CPP11 (__cplusplus >= 201103L)
697#define ECB_CPP14 (__cplusplus >= 201402L)
698#define ECB_CPP17 (__cplusplus >= 201703L)
597 699
598#if ECB_CPP 700#if ECB_CPP
599 #define ECB_C 0 701 #define ECB_C 0
600 #define ECB_STDC_VERSION 0 702 #define ECB_STDC_VERSION 0
601#else 703#else
… …
603 #define ECB_STDC_VERSION __STDC_VERSION__ 705 #define ECB_STDC_VERSION __STDC_VERSION__
604#endif 706#endif
605 707
606#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 708#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
607#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 709#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
710#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
608 711
609#if ECB_CPP 712#if ECB_CPP
610 #define ECB_EXTERN_C extern "C" 713 #define ECB_EXTERN_C extern "C"
611 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 714 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
612 #define ECB_EXTERN_C_END } 715 #define ECB_EXTERN_C_END }
… …
627 730
628#if ECB_NO_SMP 731#if ECB_NO_SMP
629 #define ECB_MEMORY_FENCE do { } while (0) 732 #define ECB_MEMORY_FENCE do { } while (0)
630#endif 733#endif
631 734
735/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
736#if __xlC__ && ECB_CPP
737 #include <builtins.h>
738#endif
739
740#if 1400 <= _MSC_VER
741 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
742#endif
743
632#ifndef ECB_MEMORY_FENCE 744#ifndef ECB_MEMORY_FENCE
633 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 745 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
746 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
634 #if __i386 || __i386__ 747 #if __i386 || __i386__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 748 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
636 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 749 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 750 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
638 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 751 #elif ECB_GCC_AMD64
639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 752 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
640 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 753 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
641 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 754 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
642 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 755 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 756 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
757 #elif defined __ARM_ARCH_2__ \
758 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
759 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
760 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
761 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
762 || defined __ARM_ARCH_5TEJ__
763 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
644 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 764 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
645 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 765 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
766 || defined __ARM_ARCH_6T2__
646 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 767 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
647 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 768 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
648 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 769 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
649 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 770 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
650 #elif __aarch64__ 771 #elif __aarch64__
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 772 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
652 #elif (__sparc || __sparc__) && !__sparcv8 773 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
653 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 774 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
654 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 775 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
655 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 776 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
656 #elif defined __s390__ || defined __s390x__ 777 #elif defined __s390__ || defined __s390x__
657 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 778 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
680 #if ECB_GCC_VERSION(4,7) 801 #if ECB_GCC_VERSION(4,7)
681 /* see comment below (stdatomic.h) about the C11 memory model. */ 802 /* see comment below (stdatomic.h) about the C11 memory model. */
682 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 803 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
683 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 804 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
684 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 805 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
806 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
685 807
686 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 808 #elif ECB_CLANG_EXTENSION(c_atomic)
687 * without risking compile time errors with other compilers. We *could*
688 * define our own ecb_clang_has_feature, but I just can't be bothered to work
689 * around this shit time and again.
690 * #elif defined __clang && __has_feature (cxx_atomic)
691 * // see comment below (stdatomic.h) about the C11 memory model. 809 /* see comment below (stdatomic.h) about the C11 memory model. */
692 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 810 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
693 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 811 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
694 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 812 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
695 */ 813 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
696 814
697 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 815 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
698 #define ECB_MEMORY_FENCE __sync_synchronize () 816 #define ECB_MEMORY_FENCE __sync_synchronize ()
699 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 817 #elif _MSC_VER >= 1500 /* VC++ 2008 */
700 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 818 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
710 #elif defined _WIN32 828 #elif defined _WIN32
711 #include <WinNT.h> 829 #include <WinNT.h>
712 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 830 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
713 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 831 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
714 #include <mbarrier.h> 832 #include <mbarrier.h>
715 #define ECB_MEMORY_FENCE __machine_rw_barrier () 833 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
716 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 834 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
717 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 835 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
836 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
718 #elif __xlC__ 837 #elif __xlC__
719 #define ECB_MEMORY_FENCE __sync () 838 #define ECB_MEMORY_FENCE __sync ()
720 #endif 839 #endif
721#endif 840#endif
722 841
723#ifndef ECB_MEMORY_FENCE 842#ifndef ECB_MEMORY_FENCE
724 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 843 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
725 /* we assume that these memory fences work on all variables/all memory accesses, */ 844 /* we assume that these memory fences work on all variables/all memory accesses, */
726 /* not just C11 atomics and atomic accesses */ 845 /* not just C11 atomics and atomic accesses */
727 #include <stdatomic.h> 846 #include <stdatomic.h>
728 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
729 /* any fence other than seq_cst, which isn't very efficient for us. */
730 /* Why that is, we don't know - either the C11 memory model is quite useless */
731 /* for most usages, or gcc and clang have a bug */
732 /* I *currently* lean towards the latter, and inefficiently implement */
733 /* all three of ecb's fences as a seq_cst fence */
734 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
735 /* for all __atomic_thread_fence's except seq_cst */
736 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 847 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
848 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
849 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
737 #endif 850 #endif
738#endif 851#endif
739 852
740#ifndef ECB_MEMORY_FENCE 853#ifndef ECB_MEMORY_FENCE
741 #if !ECB_AVOID_PTHREADS 854 #if !ECB_AVOID_PTHREADS
… …
761 874
762#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 875#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
763 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 876 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
764#endif 877#endif
765 878
879#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
880 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
881#endif
882
766/*****************************************************************************/ 883/*****************************************************************************/
767 884
768#if __cplusplus 885#if ECB_CPP
769 #define ecb_inline static inline 886 #define ecb_inline static inline
770#elif ECB_GCC_VERSION(2,5) 887#elif ECB_GCC_VERSION(2,5)
771 #define ecb_inline static __inline__ 888 #define ecb_inline static __inline__
772#elif ECB_C99 889#elif ECB_C99
773 #define ecb_inline static inline 890 #define ecb_inline static inline
… …
787 904
788#define ECB_CONCAT_(a, b) a ## b 905#define ECB_CONCAT_(a, b) a ## b
789#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 906#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
790#define ECB_STRINGIFY_(a) # a 907#define ECB_STRINGIFY_(a) # a
791#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 908#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
909#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
792 910
793#define ecb_function_ ecb_inline 911#define ecb_function_ ecb_inline
794 912
795#if ECB_GCC_VERSION(3,1) 913#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
796 #define ecb_attribute(attrlist) __attribute__(attrlist) 914 #define ecb_attribute(attrlist) __attribute__ (attrlist)
797 #define ecb_is_constant(expr) __builtin_constant_p (expr)
798 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
799 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
800#else 915#else
801 #define ecb_attribute(attrlist) 916 #define ecb_attribute(attrlist)
917#endif
802 918
919#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
920 #define ecb_is_constant(expr) __builtin_constant_p (expr)
921#else
803 /* possible C11 impl for integral types 922 /* possible C11 impl for integral types
804 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 923 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
805 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ 924 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
806 925
807 #define ecb_is_constant(expr) 0 926 #define ecb_is_constant(expr) 0
927#endif
928
929#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
930 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
931#else
808 #define ecb_expect(expr,value) (expr) 932 #define ecb_expect(expr,value) (expr)
933#endif
934
935#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
936 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
937#else
809 #define ecb_prefetch(addr,rw,locality) 938 #define ecb_prefetch(addr,rw,locality)
810#endif 939#endif
811 940
812/* no emulation for ecb_decltype */ 941/* no emulation for ecb_decltype */
813#if ECB_GCC_VERSION(4,5) 942#if ECB_CPP11
943 // older implementations might have problems with decltype(x)::type, work around it
944 template<class T> struct ecb_decltype_t { typedef T type; };
814 #define ecb_decltype(x) __decltype(x) 945 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
815#elif ECB_GCC_VERSION(3,0) 946#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
816 #define ecb_decltype(x) __typeof(x) 947 #define ecb_decltype(x) __typeof__ (x)
817#endif 948#endif
818 949
819#if _MSC_VER >= 1300 950#if _MSC_VER >= 1300
820 #define ecb_deprecated __declspec(deprecated) 951 #define ecb_deprecated __declspec (deprecated)
821#else 952#else
822 #define ecb_deprecated ecb_attribute ((__deprecated__)) 953 #define ecb_deprecated ecb_attribute ((__deprecated__))
823#endif 954#endif
824 955
956#if _MSC_VER >= 1500
957 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
958#elif ECB_GCC_VERSION(4,5)
959 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
960#else
961 #define ecb_deprecated_message(msg) ecb_deprecated
962#endif
963
964#if _MSC_VER >= 1400
965 #define ecb_noinline __declspec (noinline)
966#else
825#define ecb_noinline ecb_attribute ((__noinline__)) 967 #define ecb_noinline ecb_attribute ((__noinline__))
968#endif
969
826#define ecb_unused ecb_attribute ((__unused__)) 970#define ecb_unused ecb_attribute ((__unused__))
827#define ecb_const ecb_attribute ((__const__)) 971#define ecb_const ecb_attribute ((__const__))
828#define ecb_pure ecb_attribute ((__pure__)) 972#define ecb_pure ecb_attribute ((__pure__))
829 973
830/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ 974#if ECB_C11 || __IBMC_NORETURN
831#if ECB_C11 975 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
832 #define ecb_noreturn _Noreturn 976 #define ecb_noreturn _Noreturn
977#elif ECB_CPP11
978 #define ecb_noreturn [[noreturn]]
979#elif _MSC_VER >= 1200
980 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
981 #define ecb_noreturn __declspec (noreturn)
833#else 982#else
834 #define ecb_noreturn ecb_attribute ((__noreturn__)) 983 #define ecb_noreturn ecb_attribute ((__noreturn__))
835#endif 984#endif
836 985
837#if ECB_GCC_VERSION(4,3) 986#if ECB_GCC_VERSION(4,3)
… …
852/* for compatibility to the rest of the world */ 1001/* for compatibility to the rest of the world */
853#define ecb_likely(expr) ecb_expect_true (expr) 1002#define ecb_likely(expr) ecb_expect_true (expr)
854#define ecb_unlikely(expr) ecb_expect_false (expr) 1003#define ecb_unlikely(expr) ecb_expect_false (expr)
855 1004
856/* count trailing zero bits and count # of one bits */ 1005/* count trailing zero bits and count # of one bits */
857#if ECB_GCC_VERSION(3,4) 1006#if ECB_GCC_VERSION(3,4) \
1007 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
1008 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
1009 && ECB_CLANG_BUILTIN(__builtin_popcount))
858 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 1010 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
859 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 1011 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
860 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 1012 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
861 #define ecb_ctz32(x) __builtin_ctz (x) 1013 #define ecb_ctz32(x) __builtin_ctz (x)
862 #define ecb_ctz64(x) __builtin_ctzll (x) 1014 #define ecb_ctz64(x) __builtin_ctzll (x)
863 #define ecb_popcount32(x) __builtin_popcount (x) 1015 #define ecb_popcount32(x) __builtin_popcount (x)
864 /* no popcountll */ 1016 /* no popcountll */
865#else 1017#else
866 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1018 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
867 ecb_function_ int 1019 ecb_function_ ecb_const int
868 ecb_ctz32 (uint32_t x) 1020 ecb_ctz32 (uint32_t x)
869 { 1021 {
1022#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1023 unsigned long r;
1024 _BitScanForward (&r, x);
1025 return (int)r;
1026#else
870 int r = 0; 1027 int r = 0;
871 1028
872 x &= ~x + 1; /* this isolates the lowest bit */ 1029 x &= ~x + 1; /* this isolates the lowest bit */
873 1030
874#if ECB_branchless_on_i386 1031#if ECB_branchless_on_i386
… …
884 if (x & 0xff00ff00) r += 8; 1041 if (x & 0xff00ff00) r += 8;
885 if (x & 0xffff0000) r += 16; 1042 if (x & 0xffff0000) r += 16;
886#endif 1043#endif
887 1044
888 return r; 1045 return r;
1046#endif
889 } 1047 }
890 1048
891 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1049 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
892 ecb_function_ int 1050 ecb_function_ ecb_const int
893 ecb_ctz64 (uint64_t x) 1051 ecb_ctz64 (uint64_t x)
894 { 1052 {
1053#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1054 unsigned long r;
1055 _BitScanForward64 (&r, x);
1056 return (int)r;
1057#else
895 int shift = x & 0xffffffffU ? 0 : 32; 1058 int shift = x & 0xffffffff ? 0 : 32;
896 return ecb_ctz32 (x >> shift) + shift; 1059 return ecb_ctz32 (x >> shift) + shift;
1060#endif
897 } 1061 }
898 1062
899 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1063 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
900 ecb_function_ int 1064 ecb_function_ ecb_const int
901 ecb_popcount32 (uint32_t x) 1065 ecb_popcount32 (uint32_t x)
902 { 1066 {
903 x -= (x >> 1) & 0x55555555; 1067 x -= (x >> 1) & 0x55555555;
904 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1068 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
905 x = ((x >> 4) + x) & 0x0f0f0f0f; 1069 x = ((x >> 4) + x) & 0x0f0f0f0f;
906 x *= 0x01010101; 1070 x *= 0x01010101;
907 1071
908 return x >> 24; 1072 return x >> 24;
909 } 1073 }
910 1074
911 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1075 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
912 ecb_function_ int ecb_ld32 (uint32_t x) 1076 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
913 { 1077 {
1078#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1079 unsigned long r;
1080 _BitScanReverse (&r, x);
1081 return (int)r;
1082#else
914 int r = 0; 1083 int r = 0;
915 1084
916 if (x >> 16) { x >>= 16; r += 16; } 1085 if (x >> 16) { x >>= 16; r += 16; }
917 if (x >> 8) { x >>= 8; r += 8; } 1086 if (x >> 8) { x >>= 8; r += 8; }
918 if (x >> 4) { x >>= 4; r += 4; } 1087 if (x >> 4) { x >>= 4; r += 4; }
919 if (x >> 2) { x >>= 2; r += 2; } 1088 if (x >> 2) { x >>= 2; r += 2; }
920 if (x >> 1) { r += 1; } 1089 if (x >> 1) { r += 1; }
921 1090
922 return r; 1091 return r;
1092#endif
923 } 1093 }
924 1094
925 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1095 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
926 ecb_function_ int ecb_ld64 (uint64_t x) 1096 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
927 { 1097 {
1098#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1099 unsigned long r;
1100 _BitScanReverse64 (&r, x);
1101 return (int)r;
1102#else
928 int r = 0; 1103 int r = 0;
929 1104
930 if (x >> 32) { x >>= 32; r += 32; } 1105 if (x >> 32) { x >>= 32; r += 32; }
931 1106
932 return r + ecb_ld32 (x); 1107 return r + ecb_ld32 (x);
1108#endif
933 } 1109 }
934#endif 1110#endif
935 1111
936ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1112ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
937ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1113ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
938ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1114ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
939ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1115ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
940 1116
941ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1117ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
942ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1118ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
943{ 1119{
944 return ( (x * 0x0802U & 0x22110U) 1120 return ( (x * 0x0802U & 0x22110U)
945 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1121 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
946} 1122}
947 1123
948ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1124ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
949ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1125ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
950{ 1126{
951 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1127 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
952 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1128 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
953 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1129 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
954 x = ( x >> 8 ) | ( x << 8); 1130 x = ( x >> 8 ) | ( x << 8);
955 1131
956 return x; 1132 return x;
957} 1133}
958 1134
959ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1135ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
960ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1136ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
961{ 1137{
962 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1138 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
963 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1139 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
964 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1140 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
965 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1141 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
968 return x; 1144 return x;
969} 1145}
970 1146
971/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1147/* popcount64 is only available on 64 bit cpus as gcc builtin */
972/* so for this version we are lazy */ 1148/* so for this version we are lazy */
973ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1149ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
974ecb_function_ int 1150ecb_function_ ecb_const int
975ecb_popcount64 (uint64_t x) 1151ecb_popcount64 (uint64_t x)
976{ 1152{
977 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1153 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
978} 1154}
979 1155
980ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1156ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
981ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1157ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
982ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1158ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
983ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1159ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
984ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1160ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
985ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1161ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
986ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1162ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
987ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1163ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
988 1164
989ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1165ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
990ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1166ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
991ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1167ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
992ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1168ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
993ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1169ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
994ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1170ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
995ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1171ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
996ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1172ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
997 1173
998#if ECB_GCC_VERSION(4,3) 1174#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1175 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1176 #define ecb_bswap16(x) __builtin_bswap16 (x)
1177 #else
999 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1178 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1179 #endif
1000 #define ecb_bswap32(x) __builtin_bswap32 (x) 1180 #define ecb_bswap32(x) __builtin_bswap32 (x)
1001 #define ecb_bswap64(x) __builtin_bswap64 (x) 1181 #define ecb_bswap64(x) __builtin_bswap64 (x)
1182#elif _MSC_VER
1183 #include <stdlib.h>
1184 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1185 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1186 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
1002#else 1187#else
1003 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1188 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1004 ecb_function_ uint16_t 1189 ecb_function_ ecb_const uint16_t
1005 ecb_bswap16 (uint16_t x) 1190 ecb_bswap16 (uint16_t x)
1006 { 1191 {
1007 return ecb_rotl16 (x, 8); 1192 return ecb_rotl16 (x, 8);
1008 } 1193 }
1009 1194
1010 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1195 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1011 ecb_function_ uint32_t 1196 ecb_function_ ecb_const uint32_t
1012 ecb_bswap32 (uint32_t x) 1197 ecb_bswap32 (uint32_t x)
1013 { 1198 {
1014 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1199 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1015 } 1200 }
1016 1201
1017 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1202 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1018 ecb_function_ uint64_t 1203 ecb_function_ ecb_const uint64_t
1019 ecb_bswap64 (uint64_t x) 1204 ecb_bswap64 (uint64_t x)
1020 { 1205 {
1021 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1206 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1022 } 1207 }
1023#endif 1208#endif
1024 1209
1025#if ECB_GCC_VERSION(4,5) 1210#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1026 #define ecb_unreachable() __builtin_unreachable () 1211 #define ecb_unreachable() __builtin_unreachable ()
1027#else 1212#else
1028 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1213 /* this seems to work fine, but gcc always emits a warning for it :/ */
1029 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1214 ecb_inline ecb_noreturn void ecb_unreachable (void);
1030 ecb_inline void ecb_unreachable (void) { } 1215 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1031#endif 1216#endif
1032 1217
1033/* try to tell the compiler that some condition is definitely true */ 1218/* try to tell the compiler that some condition is definitely true */
1034#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1219#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1035 1220
1036ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1221ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1037ecb_inline unsigned char 1222ecb_inline ecb_const uint32_t
1038ecb_byteorder_helper (void) 1223ecb_byteorder_helper (void)
1039{ 1224{
1040 /* the union code still generates code under pressure in gcc, */ 1225 /* the union code still generates code under pressure in gcc, */
1041 /* but less than using pointers, and always seems to */ 1226 /* but less than using pointers, and always seems to */
1042 /* successfully return a constant. */ 1227 /* successfully return a constant. */
1043 /* the reason why we have this horrible preprocessor mess */ 1228 /* the reason why we have this horrible preprocessor mess */
1044 /* is to avoid it in all cases, at least on common architectures */ 1229 /* is to avoid it in all cases, at least on common architectures */
1045 /* or when using a recent enough gcc version (>= 4.6) */ 1230 /* or when using a recent enough gcc version (>= 4.6) */
1046#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1047 return 0x44;
1048#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1231#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1232 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1233 #define ECB_LITTLE_ENDIAN 1
1049 return 0x44; 1234 return 0x44332211;
1050#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1235#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1236 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1237 #define ECB_BIG_ENDIAN 1
1051 return 0x11; 1238 return 0x11223344;
1052#else 1239#else
1053 union 1240 union
1054 { 1241 {
1242 uint8_t c[4];
1055 uint32_t i; 1243 uint32_t u;
1056 uint8_t c;
1057 } u = { 0x11223344 }; 1244 } u = { 0x11, 0x22, 0x33, 0x44 };
1058 return u.c; 1245 return u.u;
1059#endif 1246#endif
1060} 1247}
1061 1248
1062ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1249ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1063ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1250ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1064ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1251ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1065ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1252ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1066 1253
1067#if ECB_GCC_VERSION(3,0) || ECB_C99 1254#if ECB_GCC_VERSION(3,0) || ECB_C99
1068 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1255 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1069#else 1256#else
1070 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1257 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1071#endif 1258#endif
1072 1259
1073#if __cplusplus 1260#if ECB_CPP
1074 template<typename T> 1261 template<typename T>
1075 static inline T ecb_div_rd (T val, T div) 1262 static inline T ecb_div_rd (T val, T div)
1076 { 1263 {
1077 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1264 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1078 } 1265 }
… …
1095 } 1282 }
1096#else 1283#else
1097 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1284 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1098#endif 1285#endif
1099 1286
1287ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1288ecb_function_ ecb_const uint32_t
1289ecb_binary16_to_binary32 (uint32_t x)
1290{
1291 unsigned int s = (x & 0x8000) << (31 - 15);
1292 int e = (x >> 10) & 0x001f;
1293 unsigned int m = x & 0x03ff;
1294
1295 if (ecb_expect_false (e == 31))
1296 /* infinity or NaN */
1297 e = 255 - (127 - 15);
1298 else if (ecb_expect_false (!e))
1299 {
1300 if (ecb_expect_true (!m))
1301 /* zero, handled by code below by forcing e to 0 */
1302 e = 0 - (127 - 15);
1303 else
1304 {
1305 /* subnormal, renormalise */
1306 unsigned int s = 10 - ecb_ld32 (m);
1307
1308 m = (m << s) & 0x3ff; /* mask implicit bit */
1309 e -= s - 1;
1310 }
1311 }
1312
1313 /* e and m now are normalised, or zero, (or inf or nan) */
1314 e += 127 - 15;
1315
1316 return s | (e << 23) | (m << (23 - 10));
1317}
1318
1319ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1320ecb_function_ ecb_const uint16_t
1321ecb_binary32_to_binary16 (uint32_t x)
1322{
1323 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1324 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1325 unsigned int m = x & 0x007fffff;
1326
1327 x &= 0x7fffffff;
1328
1329 /* if it's within range of binary16 normals, use fast path */
1330 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1331 {
1332 /* mantissa round-to-even */
1333 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1334
1335 /* handle overflow */
1336 if (ecb_expect_false (m >= 0x00800000))
1337 {
1338 m >>= 1;
1339 e += 1;
1340 }
1341
1342 return s | (e << 10) | (m >> (23 - 10));
1343 }
1344
1345 /* handle large numbers and infinity */
1346 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1347 return s | 0x7c00;
1348
1349 /* handle zero, subnormals and small numbers */
1350 if (ecb_expect_true (x < 0x38800000))
1351 {
1352 /* zero */
1353 if (ecb_expect_true (!x))
1354 return s;
1355
1356 /* handle subnormals */
1357
1358 /* too small, will be zero */
1359 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1360 return s;
1361
1362 m |= 0x00800000; /* make implicit bit explicit */
1363
1364 /* very tricky - we need to round to the nearest e (+10) bit value */
1365 {
1366 unsigned int bits = 14 - e;
1367 unsigned int half = (1 << (bits - 1)) - 1;
1368 unsigned int even = (m >> bits) & 1;
1369
1370 /* if this overflows, we will end up with a normalised number */
1371 m = (m + half + even) >> bits;
1372 }
1373
1374 return s | m;
1375 }
1376
1377 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1378 m >>= 13;
1379
1380 return s | 0x7c00 | m | !m;
1381}
1382
1100/*******************************************************************************/ 1383/*******************************************************************************/
1101/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1384/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1102 1385
1103/* basically, everything uses "ieee pure-endian" floating point numbers */ 1386/* basically, everything uses "ieee pure-endian" floating point numbers */
1104/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1387/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1105#if 0 \ 1388#if 0 \
1106 || __i386 || __i386__ \ 1389 || __i386 || __i386__ \
1107 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1390 || ECB_GCC_AMD64 \
1108 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1391 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1109 || defined __s390__ || defined __s390x__ \ 1392 || defined __s390__ || defined __s390x__ \
1110 || defined __mips__ \ 1393 || defined __mips__ \
1111 || defined __alpha__ \ 1394 || defined __alpha__ \
1112 || defined __hppa__ \ 1395 || defined __hppa__ \
1113 || defined __ia64__ \ 1396 || defined __ia64__ \
1114 || defined __m68k__ \ 1397 || defined __m68k__ \
1115 || defined __m88k__ \ 1398 || defined __m88k__ \
1116 || defined __sh__ \ 1399 || defined __sh__ \
1117 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1400 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1118 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1401 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1119 || defined __aarch64__ 1402 || defined __aarch64__
1120 #define ECB_STDFP 1 1403 #define ECB_STDFP 1
1121 #include <string.h> /* for memcpy */ 1404 #include <string.h> /* for memcpy */
1122#else 1405#else
… …
1138 #define ECB_NAN NAN 1421 #define ECB_NAN NAN
1139 #else 1422 #else
1140 #define ECB_NAN ECB_INFINITY 1423 #define ECB_NAN ECB_INFINITY
1141 #endif 1424 #endif
1142 1425
1143 /* converts an ieee half/binary16 to a float */ 1426 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1144 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1427 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1145 ecb_function_ float 1428 #define ecb_frexpf(x,e) frexpf ((x), (e))
1146 ecb_binary16_to_float (uint16_t x) 1429 #else
1147 { 1430 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1148 int e = (x >> 10) & 0x1f; 1431 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1149 int m = x & 0x3ff; 1432 #endif
1150 float r;
1151
1152 if (!e ) r = ldexpf (m , -24);
1153 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1154 else if (m ) r = ECB_NAN;
1155 else r = ECB_INFINITY;
1156
1157 return x & 0x8000 ? -r : r;
1158 }
1159 1433
1160 /* convert a float to ieee single/binary32 */ 1434 /* convert a float to ieee single/binary32 */
1161 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1435 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1162 ecb_function_ uint32_t 1436 ecb_function_ ecb_const uint32_t
1163 ecb_float_to_binary32 (float x) 1437 ecb_float_to_binary32 (float x)
1164 { 1438 {
1165 uint32_t r; 1439 uint32_t r;
1166 1440
1167 #if ECB_STDFP 1441 #if ECB_STDFP
… …
1174 if (x == 0e0f ) return 0x00000000U; 1448 if (x == 0e0f ) return 0x00000000U;
1175 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1449 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1176 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1450 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1177 if (x != x ) return 0x7fbfffffU; 1451 if (x != x ) return 0x7fbfffffU;
1178 1452
1179 m = frexpf (x, &e) * 0x1000000U; 1453 m = ecb_frexpf (x, &e) * 0x1000000U;
1180 1454
1181 r = m & 0x80000000U; 1455 r = m & 0x80000000U;
1182 1456
1183 if (r) 1457 if (r)
1184 m = -m; 1458 m = -m;
… …
1196 1470
1197 return r; 1471 return r;
1198 } 1472 }
1199 1473
1200 /* converts an ieee single/binary32 to a float */ 1474 /* converts an ieee single/binary32 to a float */
1201 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1475 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1202 ecb_function_ float 1476 ecb_function_ ecb_const float
1203 ecb_binary32_to_float (uint32_t x) 1477 ecb_binary32_to_float (uint32_t x)
1204 { 1478 {
1205 float r; 1479 float r;
1206 1480
1207 #if ECB_STDFP 1481 #if ECB_STDFP
… …
1217 x |= 0x800000U; 1491 x |= 0x800000U;
1218 else 1492 else
1219 e = 1; 1493 e = 1;
1220 1494
1221 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1495 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1222 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1496 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1223 1497
1224 r = neg ? -r : r; 1498 r = neg ? -r : r;
1225 #endif 1499 #endif
1226 1500
1227 return r; 1501 return r;
1228 } 1502 }
1229 1503
1230 /* convert a double to ieee double/binary64 */ 1504 /* convert a double to ieee double/binary64 */
1231 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1505 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1232 ecb_function_ uint64_t 1506 ecb_function_ ecb_const uint64_t
1233 ecb_double_to_binary64 (double x) 1507 ecb_double_to_binary64 (double x)
1234 { 1508 {
1235 uint64_t r; 1509 uint64_t r;
1236 1510
1237 #if ECB_STDFP 1511 #if ECB_STDFP
… …
1266 1540
1267 return r; 1541 return r;
1268 } 1542 }
1269 1543
1270 /* converts an ieee double/binary64 to a double */ 1544 /* converts an ieee double/binary64 to a double */
1271 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1545 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1272 ecb_function_ double 1546 ecb_function_ ecb_const double
1273 ecb_binary64_to_double (uint64_t x) 1547 ecb_binary64_to_double (uint64_t x)
1274 { 1548 {
1275 double r; 1549 double r;
1276 1550
1277 #if ECB_STDFP 1551 #if ECB_STDFP
… …
1295 #endif 1569 #endif
1296 1570
1297 return r; 1571 return r;
1298 } 1572 }
1299 1573
1574 /* convert a float to ieee half/binary16 */
1575 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1576 ecb_function_ ecb_const uint16_t
1577 ecb_float_to_binary16 (float x)
1578 {
1579 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1580 }
1581
1582 /* convert an ieee half/binary16 to float */
1583 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1584 ecb_function_ ecb_const float
1585 ecb_binary16_to_float (uint16_t x)
1586 {
1587 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1588 }
1589
1300#endif 1590#endif
1301 1591
1302#endif 1592#endif
1303 1593
1304/* ECB.H END */ 1594/* ECB.H END */
1305 1595
1306#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1596#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1307/* if your architecture doesn't need memory fences, e.g. because it is 1597/* if your architecture doesn't need memory fences, e.g. because it is
1308 * single-cpu/core, or if you use libev in a project that doesn't use libev 1598 * single-cpu/core, or if you use libev in a project that doesn't use libev
1309 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1599 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1310 * libev, in which cases the memory fences become nops. 1600 * libev, in which cases the memory fences become nops.
1311 * alternatively, you can remove this #error and link against libpthread, 1601 * alternatively, you can remove this #error and link against libpthread,
1312 * which will then provide the memory fences. 1602 * which will then provide the memory fences.
1313 */ 1603 */
1314# error "memory fences not defined for your architecture, please report" 1604# error "memory fences not defined for your architecture, please report"
… …
1318# define ECB_MEMORY_FENCE do { } while (0) 1608# define ECB_MEMORY_FENCE do { } while (0)
1319# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1609# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1320# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1610# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1321#endif 1611#endif
1322 1612
1323#define expect_false(cond) ecb_expect_false (cond)
1324#define expect_true(cond) ecb_expect_true (cond)
1325#define noinline ecb_noinline
1326
1327#define inline_size ecb_inline 1613#define inline_size ecb_inline
1328 1614
1329#if EV_FEATURE_CODE 1615#if EV_FEATURE_CODE
1330# define inline_speed ecb_inline 1616# define inline_speed ecb_inline
1331#else 1617#else
1332# define inline_speed static noinline 1618# define inline_speed ecb_noinline static
1333#endif 1619#endif
1620
1621/*****************************************************************************/
1622/* raw syscall wrappers */
1623
1624#if EV_NEED_SYSCALL
1625
1626#include <sys/syscall.h>
1627
1628/*
1629 * define some syscall wrappers for common architectures
1630 * this is mostly for nice looks during debugging, not performance.
1631 * our syscalls return < 0, not == -1, on error. which is good
1632 * enough for linux aio.
1633 * TODO: arm is also common nowadays, maybe even mips and x86
1634 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1635 */
1636#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1637 /* the costly errno access probably kills this for size optimisation */
1638
1639 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1640 ({ \
1641 long res; \
1642 register unsigned long r6 __asm__ ("r9" ); \
1643 register unsigned long r5 __asm__ ("r8" ); \
1644 register unsigned long r4 __asm__ ("r10"); \
1645 register unsigned long r3 __asm__ ("rdx"); \
1646 register unsigned long r2 __asm__ ("rsi"); \
1647 register unsigned long r1 __asm__ ("rdi"); \
1648 if (narg >= 6) r6 = (unsigned long)(arg6); \
1649 if (narg >= 5) r5 = (unsigned long)(arg5); \
1650 if (narg >= 4) r4 = (unsigned long)(arg4); \
1651 if (narg >= 3) r3 = (unsigned long)(arg3); \
1652 if (narg >= 2) r2 = (unsigned long)(arg2); \
1653 if (narg >= 1) r1 = (unsigned long)(arg1); \
1654 __asm__ __volatile__ ( \
1655 "syscall\n\t" \
1656 : "=a" (res) \
1657 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1658 : "cc", "r11", "cx", "memory"); \
1659 errno = -res; \
1660 res; \
1661 })
1662
1663#endif
1664
1665#ifdef ev_syscall
1666 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1667 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1668 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1669 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1670 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1671 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1672 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1673#else
1674 #define ev_syscall0(nr) syscall (nr)
1675 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1676 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1677 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1678 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1679 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1680 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1681#endif
1682
1683#endif
1684
1685/*****************************************************************************/
1334 1686
1335#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1687#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1336 1688
1337#if EV_MINPRI == EV_MAXPRI 1689#if EV_MINPRI == EV_MAXPRI
1338# define ABSPRI(w) (((W)w), 0) 1690# define ABSPRI(w) (((W)w), 0)
1339#else 1691#else
1340# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1692# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1341#endif 1693#endif
1342 1694
1343#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1695#define EMPTY /* required for microsofts broken pseudo-c compiler */
1344#define EMPTY2(a,b) /* used to suppress some warnings */
1345 1696
1346typedef ev_watcher *W; 1697typedef ev_watcher *W;
1347typedef ev_watcher_list *WL; 1698typedef ev_watcher_list *WL;
1348typedef ev_watcher_time *WT; 1699typedef ev_watcher_time *WT;
1349 1700
… …
1374# include "ev_win32.c" 1725# include "ev_win32.c"
1375#endif 1726#endif
1376 1727
1377/*****************************************************************************/ 1728/*****************************************************************************/
1378 1729
1730#if EV_USE_LINUXAIO
1731# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1732#endif
1733
1379/* define a suitable floor function (only used by periodics atm) */ 1734/* define a suitable floor function (only used by periodics atm) */
1380 1735
1381#if EV_USE_FLOOR 1736#if EV_USE_FLOOR
1382# include <math.h> 1737# include <math.h>
1383# define ev_floor(v) floor (v) 1738# define ev_floor(v) floor (v)
1384#else 1739#else
1385 1740
1386#include <float.h> 1741#include <float.h>
1387 1742
1388/* a floor() replacement function, should be independent of ev_tstamp type */ 1743/* a floor() replacement function, should be independent of ev_tstamp type */
1744ecb_noinline
1389static ev_tstamp noinline 1745static ev_tstamp
1390ev_floor (ev_tstamp v) 1746ev_floor (ev_tstamp v)
1391{ 1747{
1392 /* the choice of shift factor is not terribly important */ 1748 /* the choice of shift factor is not terribly important */
1393#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1749#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1394 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1750 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1395#else 1751#else
1396 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1752 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1397#endif 1753#endif
1398 1754
1755 /* special treatment for negative arguments */
1756 if (ecb_expect_false (v < 0.))
1757 {
1758 ev_tstamp f = -ev_floor (-v);
1759
1760 return f - (f == v ? 0 : 1);
1761 }
1762
1399 /* argument too large for an unsigned long? */ 1763 /* argument too large for an unsigned long? then reduce it */
1400 if (expect_false (v >= shift)) 1764 if (ecb_expect_false (v >= shift))
1401 { 1765 {
1402 ev_tstamp f; 1766 ev_tstamp f;
1403 1767
1404 if (v == v - 1.) 1768 if (v == v - 1.)
1405 return v; /* very large number */ 1769 return v; /* very large numbers are assumed to be integer */
1406 1770
1407 f = shift * ev_floor (v * (1. / shift)); 1771 f = shift * ev_floor (v * (1. / shift));
1408 return f + ev_floor (v - f); 1772 return f + ev_floor (v - f);
1409 } 1773 }
1410 1774
1411 /* special treatment for negative args? */
1412 if (expect_false (v < 0.))
1413 {
1414 ev_tstamp f = -ev_floor (-v);
1415
1416 return f - (f == v ? 0 : 1);
1417 }
1418
1419 /* fits into an unsigned long */ 1775 /* fits into an unsigned long */
1420 return (unsigned long)v; 1776 return (unsigned long)v;
1421} 1777}
1422 1778
1423#endif 1779#endif
… …
1426 1782
1427#ifdef __linux 1783#ifdef __linux
1428# include <sys/utsname.h> 1784# include <sys/utsname.h>
1429#endif 1785#endif
1430 1786
1431static unsigned int noinline ecb_cold 1787ecb_noinline ecb_cold
1788static unsigned int
1432ev_linux_version (void) 1789ev_linux_version (void)
1433{ 1790{
1434#ifdef __linux 1791#ifdef __linux
1435 unsigned int v = 0; 1792 unsigned int v = 0;
1436 struct utsname buf; 1793 struct utsname buf;
… …
1465} 1822}
1466 1823
1467/*****************************************************************************/ 1824/*****************************************************************************/
1468 1825
1469#if EV_AVOID_STDIO 1826#if EV_AVOID_STDIO
1470static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1471ev_printerr (const char *msg) 1829ev_printerr (const char *msg)
1472{ 1830{
1473 write (STDERR_FILENO, msg, strlen (msg)); 1831 write (STDERR_FILENO, msg, strlen (msg));
1474} 1832}
1475#endif 1833#endif
1476 1834
1477static void (*syserr_cb)(const char *msg) EV_THROW; 1835static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1478 1836
1479void ecb_cold 1837ecb_cold
1838void
1480ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1839ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1481{ 1840{
1482 syserr_cb = cb; 1841 syserr_cb = cb;
1483} 1842}
1484 1843
1485static void noinline ecb_cold 1844ecb_noinline ecb_cold
1845static void
1486ev_syserr (const char *msg) 1846ev_syserr (const char *msg)
1487{ 1847{
1488 if (!msg) 1848 if (!msg)
1489 msg = "(libev) system error"; 1849 msg = "(libev) system error";
1490 1850
… …
1503 abort (); 1863 abort ();
1504 } 1864 }
1505} 1865}
1506 1866
1507static void * 1867static void *
1508ev_realloc_emul (void *ptr, long size) EV_THROW 1868ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1509{ 1869{
1510 /* some systems, notably openbsd and darwin, fail to properly 1870 /* some systems, notably openbsd and darwin, fail to properly
1511 * implement realloc (x, 0) (as required by both ansi c-89 and 1871 * implement realloc (x, 0) (as required by both ansi c-89 and
1512 * the single unix specification, so work around them here. 1872 * the single unix specification, so work around them here.
1513 * recently, also (at least) fedora and debian started breaking it, 1873 * recently, also (at least) fedora and debian started breaking it,
… …
1519 1879
1520 free (ptr); 1880 free (ptr);
1521 return 0; 1881 return 0;
1522} 1882}
1523 1883
1524static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1884static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1525 1885
1526void ecb_cold 1886ecb_cold
1887void
1527ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1888ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1528{ 1889{
1529 alloc = cb; 1890 alloc = cb;
1530} 1891}
1531 1892
1532inline_speed void * 1893inline_speed void *
… …
1559typedef struct 1920typedef struct
1560{ 1921{
1561 WL head; 1922 WL head;
1562 unsigned char events; /* the events watched for */ 1923 unsigned char events; /* the events watched for */
1563 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1924 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1564 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1925 unsigned char emask; /* some backends store the actual kernel mask in here */
1565 unsigned char unused; 1926 unsigned char eflags; /* flags field for use by backends */
1566#if EV_USE_EPOLL 1927#if EV_USE_EPOLL
1567 unsigned int egen; /* generation counter to counter epoll bugs */ 1928 unsigned int egen; /* generation counter to counter epoll bugs */
1568#endif 1929#endif
1569#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1930#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1570 SOCKET handle; 1931 SOCKET handle;
… …
1624 static struct ev_loop default_loop_struct; 1985 static struct ev_loop default_loop_struct;
1625 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 1986 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1626 1987
1627#else 1988#else
1628 1989
1629 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 1990 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1630 #define VAR(name,decl) static decl; 1991 #define VAR(name,decl) static decl;
1631 #include "ev_vars.h" 1992 #include "ev_vars.h"
1632 #undef VAR 1993 #undef VAR
1633 1994
1634 static int ev_default_loop_ptr; 1995 static int ev_default_loop_ptr;
1635 1996
1636#endif 1997#endif
1637 1998
1638#if EV_FEATURE_API 1999#if EV_FEATURE_API
1639# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2000# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1640# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2001# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1641# define EV_INVOKE_PENDING invoke_cb (EV_A) 2002# define EV_INVOKE_PENDING invoke_cb (EV_A)
1642#else 2003#else
1643# define EV_RELEASE_CB (void)0 2004# define EV_RELEASE_CB (void)0
1644# define EV_ACQUIRE_CB (void)0 2005# define EV_ACQUIRE_CB (void)0
1645# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2006# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1649 2010
1650/*****************************************************************************/ 2011/*****************************************************************************/
1651 2012
1652#ifndef EV_HAVE_EV_TIME 2013#ifndef EV_HAVE_EV_TIME
1653ev_tstamp 2014ev_tstamp
1654ev_time (void) EV_THROW 2015ev_time (void) EV_NOEXCEPT
1655{ 2016{
1656#if EV_USE_REALTIME 2017#if EV_USE_REALTIME
1657 if (expect_true (have_realtime)) 2018 if (ecb_expect_true (have_realtime))
1658 { 2019 {
1659 struct timespec ts; 2020 struct timespec ts;
1660 clock_gettime (CLOCK_REALTIME, &ts); 2021 clock_gettime (CLOCK_REALTIME, &ts);
1661 return ts.tv_sec + ts.tv_nsec * 1e-9; 2022 return EV_TS_GET (ts);
1662 } 2023 }
1663#endif 2024#endif
1664 2025
2026 {
1665 struct timeval tv; 2027 struct timeval tv;
1666 gettimeofday (&tv, 0); 2028 gettimeofday (&tv, 0);
1667 return tv.tv_sec + tv.tv_usec * 1e-6; 2029 return EV_TV_GET (tv);
2030 }
1668} 2031}
1669#endif 2032#endif
1670 2033
1671inline_size ev_tstamp 2034inline_size ev_tstamp
1672get_clock (void) 2035get_clock (void)
1673{ 2036{
1674#if EV_USE_MONOTONIC 2037#if EV_USE_MONOTONIC
1675 if (expect_true (have_monotonic)) 2038 if (ecb_expect_true (have_monotonic))
1676 { 2039 {
1677 struct timespec ts; 2040 struct timespec ts;
1678 clock_gettime (CLOCK_MONOTONIC, &ts); 2041 clock_gettime (CLOCK_MONOTONIC, &ts);
1679 return ts.tv_sec + ts.tv_nsec * 1e-9; 2042 return EV_TS_GET (ts);
1680 } 2043 }
1681#endif 2044#endif
1682 2045
1683 return ev_time (); 2046 return ev_time ();
1684} 2047}
1685 2048
1686#if EV_MULTIPLICITY 2049#if EV_MULTIPLICITY
1687ev_tstamp 2050ev_tstamp
1688ev_now (EV_P) EV_THROW 2051ev_now (EV_P) EV_NOEXCEPT
1689{ 2052{
1690 return ev_rt_now; 2053 return ev_rt_now;
1691} 2054}
1692#endif 2055#endif
1693 2056
1694void 2057void
1695ev_sleep (ev_tstamp delay) EV_THROW 2058ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1696{ 2059{
1697 if (delay > 0.) 2060 if (delay > EV_TS_CONST (0.))
1698 { 2061 {
1699#if EV_USE_NANOSLEEP 2062#if EV_USE_NANOSLEEP
1700 struct timespec ts; 2063 struct timespec ts;
1701 2064
1702 EV_TS_SET (ts, delay); 2065 EV_TS_SET (ts, delay);
1703 nanosleep (&ts, 0); 2066 nanosleep (&ts, 0);
1704#elif defined _WIN32 2067#elif defined _WIN32
2068 /* maybe this should round up, as ms is very low resolution */
2069 /* compared to select (µs) or nanosleep (ns) */
1705 Sleep ((unsigned long)(delay * 1e3)); 2070 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1706#else 2071#else
1707 struct timeval tv; 2072 struct timeval tv;
1708 2073
1709 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2074 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1710 /* something not guaranteed by newer posix versions, but guaranteed */ 2075 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1740 } 2105 }
1741 2106
1742 return ncur; 2107 return ncur;
1743} 2108}
1744 2109
1745static void * noinline ecb_cold 2110ecb_noinline ecb_cold
2111static void *
1746array_realloc (int elem, void *base, int *cur, int cnt) 2112array_realloc (int elem, void *base, int *cur, int cnt)
1747{ 2113{
1748 *cur = array_nextsize (elem, *cur, cnt); 2114 *cur = array_nextsize (elem, *cur, cnt);
1749 return ev_realloc (base, elem * *cur); 2115 return ev_realloc (base, elem * *cur);
1750} 2116}
1751 2117
2118#define array_needsize_noinit(base,offset,count)
2119
1752#define array_init_zero(base,count) \ 2120#define array_needsize_zerofill(base,offset,count) \
1753 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2121 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1754 2122
1755#define array_needsize(type,base,cur,cnt,init) \ 2123#define array_needsize(type,base,cur,cnt,init) \
1756 if (expect_false ((cnt) > (cur))) \ 2124 if (ecb_expect_false ((cnt) > (cur))) \
1757 { \ 2125 { \
1758 int ecb_unused ocur_ = (cur); \ 2126 ecb_unused int ocur_ = (cur); \
1759 (base) = (type *)array_realloc \ 2127 (base) = (type *)array_realloc \
1760 (sizeof (type), (base), &(cur), (cnt)); \ 2128 (sizeof (type), (base), &(cur), (cnt)); \
1761 init ((base) + (ocur_), (cur) - ocur_); \ 2129 init ((base), ocur_, ((cur) - ocur_)); \
1762 } 2130 }
1763 2131
1764#if 0 2132#if 0
1765#define array_slim(type,stem) \ 2133#define array_slim(type,stem) \
1766 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2134 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1775 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2143 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1776 2144
1777/*****************************************************************************/ 2145/*****************************************************************************/
1778 2146
1779/* dummy callback for pending events */ 2147/* dummy callback for pending events */
1780static void noinline 2148ecb_noinline
2149static void
1781pendingcb (EV_P_ ev_prepare *w, int revents) 2150pendingcb (EV_P_ ev_prepare *w, int revents)
1782{ 2151{
1783} 2152}
1784 2153
1785void noinline 2154ecb_noinline
2155void
1786ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2156ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1787{ 2157{
1788 W w_ = (W)w; 2158 W w_ = (W)w;
1789 int pri = ABSPRI (w_); 2159 int pri = ABSPRI (w_);
1790 2160
1791 if (expect_false (w_->pending)) 2161 if (ecb_expect_false (w_->pending))
1792 pendings [pri][w_->pending - 1].events |= revents; 2162 pendings [pri][w_->pending - 1].events |= revents;
1793 else 2163 else
1794 { 2164 {
1795 w_->pending = ++pendingcnt [pri]; 2165 w_->pending = ++pendingcnt [pri];
1796 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2166 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1797 pendings [pri][w_->pending - 1].w = w_; 2167 pendings [pri][w_->pending - 1].w = w_;
1798 pendings [pri][w_->pending - 1].events = revents; 2168 pendings [pri][w_->pending - 1].events = revents;
1799 } 2169 }
1800 2170
1801 pendingpri = NUMPRI - 1; 2171 pendingpri = NUMPRI - 1;
1802} 2172}
1803 2173
1804inline_speed void 2174inline_speed void
1805feed_reverse (EV_P_ W w) 2175feed_reverse (EV_P_ W w)
1806{ 2176{
1807 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2177 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1808 rfeeds [rfeedcnt++] = w; 2178 rfeeds [rfeedcnt++] = w;
1809} 2179}
1810 2180
1811inline_size void 2181inline_size void
1812feed_reverse_done (EV_P_ int revents) 2182feed_reverse_done (EV_P_ int revents)
… …
1847inline_speed void 2217inline_speed void
1848fd_event (EV_P_ int fd, int revents) 2218fd_event (EV_P_ int fd, int revents)
1849{ 2219{
1850 ANFD *anfd = anfds + fd; 2220 ANFD *anfd = anfds + fd;
1851 2221
1852 if (expect_true (!anfd->reify)) 2222 if (ecb_expect_true (!anfd->reify))
1853 fd_event_nocheck (EV_A_ fd, revents); 2223 fd_event_nocheck (EV_A_ fd, revents);
1854} 2224}
1855 2225
1856void 2226void
1857ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2227ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1858{ 2228{
1859 if (fd >= 0 && fd < anfdmax) 2229 if (fd >= 0 && fd < anfdmax)
1860 fd_event_nocheck (EV_A_ fd, revents); 2230 fd_event_nocheck (EV_A_ fd, revents);
1861} 2231}
1862 2232
… …
1899 ev_io *w; 2269 ev_io *w;
1900 2270
1901 unsigned char o_events = anfd->events; 2271 unsigned char o_events = anfd->events;
1902 unsigned char o_reify = anfd->reify; 2272 unsigned char o_reify = anfd->reify;
1903 2273
1904 anfd->reify = 0; 2274 anfd->reify = 0;
1905 2275
1906 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2276 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1907 { 2277 {
1908 anfd->events = 0; 2278 anfd->events = 0;
1909 2279
1910 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2280 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1911 anfd->events |= (unsigned char)w->events; 2281 anfd->events |= (unsigned char)w->events;
… …
1920 2290
1921 fdchangecnt = 0; 2291 fdchangecnt = 0;
1922} 2292}
1923 2293
1924/* something about the given fd changed */ 2294/* something about the given fd changed */
1925inline_size void 2295inline_size
2296void
1926fd_change (EV_P_ int fd, int flags) 2297fd_change (EV_P_ int fd, int flags)
1927{ 2298{
1928 unsigned char reify = anfds [fd].reify; 2299 unsigned char reify = anfds [fd].reify;
1929 anfds [fd].reify |= flags; 2300 anfds [fd].reify |= flags;
1930 2301
1931 if (expect_true (!reify)) 2302 if (ecb_expect_true (!reify))
1932 { 2303 {
1933 ++fdchangecnt; 2304 ++fdchangecnt;
1934 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2305 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1935 fdchanges [fdchangecnt - 1] = fd; 2306 fdchanges [fdchangecnt - 1] = fd;
1936 } 2307 }
1937} 2308}
1938 2309
1939/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2310/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1940inline_speed void ecb_cold 2311inline_speed ecb_cold void
1941fd_kill (EV_P_ int fd) 2312fd_kill (EV_P_ int fd)
1942{ 2313{
1943 ev_io *w; 2314 ev_io *w;
1944 2315
1945 while ((w = (ev_io *)anfds [fd].head)) 2316 while ((w = (ev_io *)anfds [fd].head))
… …
1948 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2319 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1949 } 2320 }
1950} 2321}
1951 2322
1952/* check whether the given fd is actually valid, for error recovery */ 2323/* check whether the given fd is actually valid, for error recovery */
1953inline_size int ecb_cold 2324inline_size ecb_cold int
1954fd_valid (int fd) 2325fd_valid (int fd)
1955{ 2326{
1956#ifdef _WIN32 2327#ifdef _WIN32
1957 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2328 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1958#else 2329#else
1959 return fcntl (fd, F_GETFD) != -1; 2330 return fcntl (fd, F_GETFD) != -1;
1960#endif 2331#endif
1961} 2332}
1962 2333
1963/* called on EBADF to verify fds */ 2334/* called on EBADF to verify fds */
1964static void noinline ecb_cold 2335ecb_noinline ecb_cold
2336static void
1965fd_ebadf (EV_P) 2337fd_ebadf (EV_P)
1966{ 2338{
1967 int fd; 2339 int fd;
1968 2340
1969 for (fd = 0; fd < anfdmax; ++fd) 2341 for (fd = 0; fd < anfdmax; ++fd)
… …
1971 if (!fd_valid (fd) && errno == EBADF) 2343 if (!fd_valid (fd) && errno == EBADF)
1972 fd_kill (EV_A_ fd); 2344 fd_kill (EV_A_ fd);
1973} 2345}
1974 2346
1975/* called on ENOMEM in select/poll to kill some fds and retry */ 2347/* called on ENOMEM in select/poll to kill some fds and retry */
1976static void noinline ecb_cold 2348ecb_noinline ecb_cold
2349static void
1977fd_enomem (EV_P) 2350fd_enomem (EV_P)
1978{ 2351{
1979 int fd; 2352 int fd;
1980 2353
1981 for (fd = anfdmax; fd--; ) 2354 for (fd = anfdmax; fd--; )
… …
1985 break; 2358 break;
1986 } 2359 }
1987} 2360}
1988 2361
1989/* usually called after fork if backend needs to re-arm all fds from scratch */ 2362/* usually called after fork if backend needs to re-arm all fds from scratch */
1990static void noinline 2363ecb_noinline
2364static void
1991fd_rearm_all (EV_P) 2365fd_rearm_all (EV_P)
1992{ 2366{
1993 int fd; 2367 int fd;
1994 2368
1995 for (fd = 0; fd < anfdmax; ++fd) 2369 for (fd = 0; fd < anfdmax; ++fd)
… …
2048 ev_tstamp minat; 2422 ev_tstamp minat;
2049 ANHE *minpos; 2423 ANHE *minpos;
2050 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2424 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2051 2425
2052 /* find minimum child */ 2426 /* find minimum child */
2053 if (expect_true (pos + DHEAP - 1 < E)) 2427 if (ecb_expect_true (pos + DHEAP - 1 < E))
2054 { 2428 {
2055 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2429 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2056 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2430 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2057 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2431 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2058 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2432 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2059 } 2433 }
2060 else if (pos < E) 2434 else if (pos < E)
2061 { 2435 {
2062 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2436 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2063 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2437 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2064 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2438 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2065 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2439 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2066 } 2440 }
2067 else 2441 else
2068 break; 2442 break;
2069 2443
2070 if (ANHE_at (he) <= minat) 2444 if (ANHE_at (he) <= minat)
… …
2078 2452
2079 heap [k] = he; 2453 heap [k] = he;
2080 ev_active (ANHE_w (he)) = k; 2454 ev_active (ANHE_w (he)) = k;
2081} 2455}
2082 2456
2083#else /* 4HEAP */ 2457#else /* not 4HEAP */
2084 2458
2085#define HEAP0 1 2459#define HEAP0 1
2086#define HPARENT(k) ((k) >> 1) 2460#define HPARENT(k) ((k) >> 1)
2087#define UPHEAP_DONE(p,k) (!(p)) 2461#define UPHEAP_DONE(p,k) (!(p))
2088 2462
… …
2176 2550
2177/*****************************************************************************/ 2551/*****************************************************************************/
2178 2552
2179#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2180 2554
2181static void noinline ecb_cold 2555ecb_noinline ecb_cold
2556static void
2182evpipe_init (EV_P) 2557evpipe_init (EV_P)
2183{ 2558{
2184 if (!ev_is_active (&pipe_w)) 2559 if (!ev_is_active (&pipe_w))
2185 { 2560 {
2186 int fds [2]; 2561 int fds [2];
… …
2226inline_speed void 2601inline_speed void
2227evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2602evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2228{ 2603{
2229 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2604 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2230 2605
2231 if (expect_true (*flag)) 2606 if (ecb_expect_true (*flag))
2232 return; 2607 return;
2233 2608
2234 *flag = 1; 2609 *flag = 1;
2235 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2610 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2236 2611
… …
2257#endif 2632#endif
2258 { 2633 {
2259#ifdef _WIN32 2634#ifdef _WIN32
2260 WSABUF buf; 2635 WSABUF buf;
2261 DWORD sent; 2636 DWORD sent;
2262 buf.buf = &buf; 2637 buf.buf = (char *)&buf;
2263 buf.len = 1; 2638 buf.len = 1;
2264 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2639 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2265#else 2640#else
2266 write (evpipe [1], &(evpipe [1]), 1); 2641 write (evpipe [1], &(evpipe [1]), 1);
2267#endif 2642#endif
… …
2313 sig_pending = 0; 2688 sig_pending = 0;
2314 2689
2315 ECB_MEMORY_FENCE; 2690 ECB_MEMORY_FENCE;
2316 2691
2317 for (i = EV_NSIG - 1; i--; ) 2692 for (i = EV_NSIG - 1; i--; )
2318 if (expect_false (signals [i].pending)) 2693 if (ecb_expect_false (signals [i].pending))
2319 ev_feed_signal_event (EV_A_ i + 1); 2694 ev_feed_signal_event (EV_A_ i + 1);
2320 } 2695 }
2321#endif 2696#endif
2322 2697
2323#if EV_ASYNC_ENABLE 2698#if EV_ASYNC_ENABLE
… …
2339} 2714}
2340 2715
2341/*****************************************************************************/ 2716/*****************************************************************************/
2342 2717
2343void 2718void
2344ev_feed_signal (int signum) EV_THROW 2719ev_feed_signal (int signum) EV_NOEXCEPT
2345{ 2720{
2346#if EV_MULTIPLICITY 2721#if EV_MULTIPLICITY
2347 EV_P; 2722 EV_P;
2348 ECB_MEMORY_FENCE_ACQUIRE; 2723 ECB_MEMORY_FENCE_ACQUIRE;
2349 EV_A = signals [signum - 1].loop; 2724 EV_A = signals [signum - 1].loop;
… …
2364#endif 2739#endif
2365 2740
2366 ev_feed_signal (signum); 2741 ev_feed_signal (signum);
2367} 2742}
2368 2743
2369void noinline 2744ecb_noinline
2745void
2370ev_feed_signal_event (EV_P_ int signum) EV_THROW 2746ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2371{ 2747{
2372 WL w; 2748 WL w;
2373 2749
2374 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2750 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2375 return; 2751 return;
2376 2752
2377 --signum; 2753 --signum;
2378 2754
2379#if EV_MULTIPLICITY 2755#if EV_MULTIPLICITY
2380 /* it is permissible to try to feed a signal to the wrong loop */ 2756 /* it is permissible to try to feed a signal to the wrong loop */
2381 /* or, likely more useful, feeding a signal nobody is waiting for */ 2757 /* or, likely more useful, feeding a signal nobody is waiting for */
2382 2758
2383 if (expect_false (signals [signum].loop != EV_A)) 2759 if (ecb_expect_false (signals [signum].loop != EV_A))
2384 return; 2760 return;
2385#endif 2761#endif
2386 2762
2387 signals [signum].pending = 0; 2763 signals [signum].pending = 0;
2388 ECB_MEMORY_FENCE_RELEASE; 2764 ECB_MEMORY_FENCE_RELEASE;
… …
2484# include "ev_kqueue.c" 2860# include "ev_kqueue.c"
2485#endif 2861#endif
2486#if EV_USE_EPOLL 2862#if EV_USE_EPOLL
2487# include "ev_epoll.c" 2863# include "ev_epoll.c"
2488#endif 2864#endif
2865#if EV_USE_LINUXAIO
2866# include "ev_linuxaio.c"
2867#endif
2868#if EV_USE_IOURING
2869# include "ev_iouring.c"
2870#endif
2489#if EV_USE_POLL 2871#if EV_USE_POLL
2490# include "ev_poll.c" 2872# include "ev_poll.c"
2491#endif 2873#endif
2492#if EV_USE_SELECT 2874#if EV_USE_SELECT
2493# include "ev_select.c" 2875# include "ev_select.c"
2494#endif 2876#endif
2495 2877
2496int ecb_cold 2878ecb_cold int
2497ev_version_major (void) EV_THROW 2879ev_version_major (void) EV_NOEXCEPT
2498{ 2880{
2499 return EV_VERSION_MAJOR; 2881 return EV_VERSION_MAJOR;
2500} 2882}
2501 2883
2502int ecb_cold 2884ecb_cold int
2503ev_version_minor (void) EV_THROW 2885ev_version_minor (void) EV_NOEXCEPT
2504{ 2886{
2505 return EV_VERSION_MINOR; 2887 return EV_VERSION_MINOR;
2506} 2888}
2507 2889
2508/* return true if we are running with elevated privileges and should ignore env variables */ 2890/* return true if we are running with elevated privileges and should ignore env variables */
2509int inline_size ecb_cold 2891inline_size ecb_cold int
2510enable_secure (void) 2892enable_secure (void)
2511{ 2893{
2512#ifdef _WIN32 2894#ifdef _WIN32
2513 return 0; 2895 return 0;
2514#else 2896#else
2515 return getuid () != geteuid () 2897 return getuid () != geteuid ()
2516 || getgid () != getegid (); 2898 || getgid () != getegid ();
2517#endif 2899#endif
2518} 2900}
2519 2901
2520unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2521ev_supported_backends (void) EV_THROW 2904ev_supported_backends (void) EV_NOEXCEPT
2522{ 2905{
2523 unsigned int flags = 0; 2906 unsigned int flags = 0;
2524 2907
2525 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2908 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2526 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2909 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2527 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2910 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2911 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2912 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2528 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2913 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2529 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2914 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2530 2915
2531 return flags; 2916 return flags;
2532} 2917}
2533 2918
2534unsigned int ecb_cold 2919ecb_cold
2920unsigned int
2535ev_recommended_backends (void) EV_THROW 2921ev_recommended_backends (void) EV_NOEXCEPT
2536{ 2922{
2537 unsigned int flags = ev_supported_backends (); 2923 unsigned int flags = ev_supported_backends ();
2538 2924
2539#ifndef __NetBSD__ 2925#ifndef __NetBSD__
2540 /* kqueue is borked on everything but netbsd apparently */ 2926 /* kqueue is borked on everything but netbsd apparently */
… …
2548#endif 2934#endif
2549#ifdef __FreeBSD__ 2935#ifdef __FreeBSD__
2550 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2936 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2551#endif 2937#endif
2552 2938
2939 /* TODO: linuxaio is very experimental */
2940#if !EV_RECOMMEND_LINUXAIO
2941 flags &= ~EVBACKEND_LINUXAIO;
2942#endif
2943 /* TODO: linuxaio is super experimental */
2944#if !EV_RECOMMEND_IOURING
2945 flags &= ~EVBACKEND_IOURING;
2946#endif
2947
2553 return flags; 2948 return flags;
2554} 2949}
2555 2950
2556unsigned int ecb_cold 2951ecb_cold
2952unsigned int
2557ev_embeddable_backends (void) EV_THROW 2953ev_embeddable_backends (void) EV_NOEXCEPT
2558{ 2954{
2559 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2955 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2560 2956
2561 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2957 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2562 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2958 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2563 flags &= ~EVBACKEND_EPOLL; 2959 flags &= ~EVBACKEND_EPOLL;
2564 2960
2961 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2962
2963 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2964 * because our backend_fd is the epoll fd we need as fallback.
2965 * if the kernel ever is fixed, this might change...
2966 */
2967
2565 return flags; 2968 return flags;
2566} 2969}
2567 2970
2568unsigned int 2971unsigned int
2569ev_backend (EV_P) EV_THROW 2972ev_backend (EV_P) EV_NOEXCEPT
2570{ 2973{
2571 return backend; 2974 return backend;
2572} 2975}
2573 2976
2574#if EV_FEATURE_API 2977#if EV_FEATURE_API
2575unsigned int 2978unsigned int
2576ev_iteration (EV_P) EV_THROW 2979ev_iteration (EV_P) EV_NOEXCEPT
2577{ 2980{
2578 return loop_count; 2981 return loop_count;
2579} 2982}
2580 2983
2581unsigned int 2984unsigned int
2582ev_depth (EV_P) EV_THROW 2985ev_depth (EV_P) EV_NOEXCEPT
2583{ 2986{
2584 return loop_depth; 2987 return loop_depth;
2585} 2988}
2586 2989
2587void 2990void
2588ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2991ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2589{ 2992{
2590 io_blocktime = interval; 2993 io_blocktime = interval;
2591} 2994}
2592 2995
2593void 2996void
2594ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2997ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2595{ 2998{
2596 timeout_blocktime = interval; 2999 timeout_blocktime = interval;
2597} 3000}
2598 3001
2599void 3002void
2600ev_set_userdata (EV_P_ void *data) EV_THROW 3003ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2601{ 3004{
2602 userdata = data; 3005 userdata = data;
2603} 3006}
2604 3007
2605void * 3008void *
2606ev_userdata (EV_P) EV_THROW 3009ev_userdata (EV_P) EV_NOEXCEPT
2607{ 3010{
2608 return userdata; 3011 return userdata;
2609} 3012}
2610 3013
2611void 3014void
2612ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3015ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2613{ 3016{
2614 invoke_cb = invoke_pending_cb; 3017 invoke_cb = invoke_pending_cb;
2615} 3018}
2616 3019
2617void 3020void
2618ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3021ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2619{ 3022{
2620 release_cb = release; 3023 release_cb = release;
2621 acquire_cb = acquire; 3024 acquire_cb = acquire;
2622} 3025}
2623#endif 3026#endif
2624 3027
2625/* initialise a loop structure, must be zero-initialised */ 3028/* initialise a loop structure, must be zero-initialised */
2626static void noinline ecb_cold 3029ecb_noinline ecb_cold
3030static void
2627loop_init (EV_P_ unsigned int flags) EV_THROW 3031loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2628{ 3032{
2629 if (!backend) 3033 if (!backend)
2630 { 3034 {
2631 origflags = flags; 3035 origflags = flags;
2632 3036
… …
2690 3094
2691 if (!(flags & EVBACKEND_MASK)) 3095 if (!(flags & EVBACKEND_MASK))
2692 flags |= ev_recommended_backends (); 3096 flags |= ev_recommended_backends ();
2693 3097
2694#if EV_USE_IOCP 3098#if EV_USE_IOCP
2695 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3099 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2696#endif 3100#endif
2697#if EV_USE_PORT 3101#if EV_USE_PORT
2698 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3102 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2699#endif 3103#endif
2700#if EV_USE_KQUEUE 3104#if EV_USE_KQUEUE
2701 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3105 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3106#endif
3107#if EV_USE_IOURING
3108 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3109#endif
3110#if EV_USE_LINUXAIO
3111 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2702#endif 3112#endif
2703#if EV_USE_EPOLL 3113#if EV_USE_EPOLL
2704 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3114 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2705#endif 3115#endif
2706#if EV_USE_POLL 3116#if EV_USE_POLL
2707 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3117 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2708#endif 3118#endif
2709#if EV_USE_SELECT 3119#if EV_USE_SELECT
2710 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3120 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2711#endif 3121#endif
2712 3122
2713 ev_prepare_init (&pending_w, pendingcb); 3123 ev_prepare_init (&pending_w, pendingcb);
2714 3124
2715#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3125#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2718#endif 3128#endif
2719 } 3129 }
2720} 3130}
2721 3131
2722/* free up a loop structure */ 3132/* free up a loop structure */
2723void ecb_cold 3133ecb_cold
3134void
2724ev_loop_destroy (EV_P) 3135ev_loop_destroy (EV_P)
2725{ 3136{
2726 int i; 3137 int i;
2727 3138
2728#if EV_MULTIPLICITY 3139#if EV_MULTIPLICITY
… …
2731 return; 3142 return;
2732#endif 3143#endif
2733 3144
2734#if EV_CLEANUP_ENABLE 3145#if EV_CLEANUP_ENABLE
2735 /* queue cleanup watchers (and execute them) */ 3146 /* queue cleanup watchers (and execute them) */
2736 if (expect_false (cleanupcnt)) 3147 if (ecb_expect_false (cleanupcnt))
2737 { 3148 {
2738 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3149 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2739 EV_INVOKE_PENDING; 3150 EV_INVOKE_PENDING;
2740 } 3151 }
2741#endif 3152#endif
… …
2769 3180
2770 if (backend_fd >= 0) 3181 if (backend_fd >= 0)
2771 close (backend_fd); 3182 close (backend_fd);
2772 3183
2773#if EV_USE_IOCP 3184#if EV_USE_IOCP
2774 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3185 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2775#endif 3186#endif
2776#if EV_USE_PORT 3187#if EV_USE_PORT
2777 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3188 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2778#endif 3189#endif
2779#if EV_USE_KQUEUE 3190#if EV_USE_KQUEUE
2780 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3191 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3192#endif
3193#if EV_USE_IOURING
3194 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3195#endif
3196#if EV_USE_LINUXAIO
3197 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2781#endif 3198#endif
2782#if EV_USE_EPOLL 3199#if EV_USE_EPOLL
2783 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3200 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2784#endif 3201#endif
2785#if EV_USE_POLL 3202#if EV_USE_POLL
2786 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3203 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2787#endif 3204#endif
2788#if EV_USE_SELECT 3205#if EV_USE_SELECT
2789 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3206 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2790#endif 3207#endif
2791 3208
2792 for (i = NUMPRI; i--; ) 3209 for (i = NUMPRI; i--; )
2793 { 3210 {
2794 array_free (pending, [i]); 3211 array_free (pending, [i]);
… …
2836 3253
2837inline_size void 3254inline_size void
2838loop_fork (EV_P) 3255loop_fork (EV_P)
2839{ 3256{
2840#if EV_USE_PORT 3257#if EV_USE_PORT
2841 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3258 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2842#endif 3259#endif
2843#if EV_USE_KQUEUE 3260#if EV_USE_KQUEUE
2844 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3261 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3262#endif
3263#if EV_USE_IOURING
3264 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3265#endif
3266#if EV_USE_LINUXAIO
3267 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2845#endif 3268#endif
2846#if EV_USE_EPOLL 3269#if EV_USE_EPOLL
2847 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3270 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2848#endif 3271#endif
2849#if EV_USE_INOTIFY 3272#if EV_USE_INOTIFY
2850 infy_fork (EV_A); 3273 infy_fork (EV_A);
2851#endif 3274#endif
2852 3275
2853#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3276#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2854 if (ev_is_active (&pipe_w)) 3277 if (ev_is_active (&pipe_w) && postfork != 2)
2855 { 3278 {
2856 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3279 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2857 3280
2858 ev_ref (EV_A); 3281 ev_ref (EV_A);
2859 ev_io_stop (EV_A_ &pipe_w); 3282 ev_io_stop (EV_A_ &pipe_w);
… …
2870 postfork = 0; 3293 postfork = 0;
2871} 3294}
2872 3295
2873#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
2874 3297
3298ecb_cold
2875struct ev_loop * ecb_cold 3299struct ev_loop *
2876ev_loop_new (unsigned int flags) EV_THROW 3300ev_loop_new (unsigned int flags) EV_NOEXCEPT
2877{ 3301{
2878 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3302 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2879 3303
2880 memset (EV_A, 0, sizeof (struct ev_loop)); 3304 memset (EV_A, 0, sizeof (struct ev_loop));
2881 loop_init (EV_A_ flags); 3305 loop_init (EV_A_ flags);
… …
2888} 3312}
2889 3313
2890#endif /* multiplicity */ 3314#endif /* multiplicity */
2891 3315
2892#if EV_VERIFY 3316#if EV_VERIFY
2893static void noinline ecb_cold 3317ecb_noinline ecb_cold
3318static void
2894verify_watcher (EV_P_ W w) 3319verify_watcher (EV_P_ W w)
2895{ 3320{
2896 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3321 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2897 3322
2898 if (w->pending) 3323 if (w->pending)
2899 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3324 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2900} 3325}
2901 3326
2902static void noinline ecb_cold 3327ecb_noinline ecb_cold
3328static void
2903verify_heap (EV_P_ ANHE *heap, int N) 3329verify_heap (EV_P_ ANHE *heap, int N)
2904{ 3330{
2905 int i; 3331 int i;
2906 3332
2907 for (i = HEAP0; i < N + HEAP0; ++i) 3333 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2912 3338
2913 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3339 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2914 } 3340 }
2915} 3341}
2916 3342
2917static void noinline ecb_cold 3343ecb_noinline ecb_cold
3344static void
2918array_verify (EV_P_ W *ws, int cnt) 3345array_verify (EV_P_ W *ws, int cnt)
2919{ 3346{
2920 while (cnt--) 3347 while (cnt--)
2921 { 3348 {
2922 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3349 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2925} 3352}
2926#endif 3353#endif
2927 3354
2928#if EV_FEATURE_API 3355#if EV_FEATURE_API
2929void ecb_cold 3356void ecb_cold
2930ev_verify (EV_P) EV_THROW 3357ev_verify (EV_P) EV_NOEXCEPT
2931{ 3358{
2932#if EV_VERIFY 3359#if EV_VERIFY
2933 int i; 3360 int i;
2934 WL w, w2; 3361 WL w, w2;
2935 3362
… …
3011#endif 3438#endif
3012} 3439}
3013#endif 3440#endif
3014 3441
3015#if EV_MULTIPLICITY 3442#if EV_MULTIPLICITY
3443ecb_cold
3016struct ev_loop * ecb_cold 3444struct ev_loop *
3017#else 3445#else
3018int 3446int
3019#endif 3447#endif
3020ev_default_loop (unsigned int flags) EV_THROW 3448ev_default_loop (unsigned int flags) EV_NOEXCEPT
3021{ 3449{
3022 if (!ev_default_loop_ptr) 3450 if (!ev_default_loop_ptr)
3023 { 3451 {
3024#if EV_MULTIPLICITY 3452#if EV_MULTIPLICITY
3025 EV_P = ev_default_loop_ptr = &default_loop_struct; 3453 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3044 3472
3045 return ev_default_loop_ptr; 3473 return ev_default_loop_ptr;
3046} 3474}
3047 3475
3048void 3476void
3049ev_loop_fork (EV_P) EV_THROW 3477ev_loop_fork (EV_P) EV_NOEXCEPT
3050{ 3478{
3051 postfork = 1; 3479 postfork = 1;
3052} 3480}
3053 3481
3054/*****************************************************************************/ 3482/*****************************************************************************/
… …
3058{ 3486{
3059 EV_CB_INVOKE ((W)w, revents); 3487 EV_CB_INVOKE ((W)w, revents);
3060} 3488}
3061 3489
3062unsigned int 3490unsigned int
3063ev_pending_count (EV_P) EV_THROW 3491ev_pending_count (EV_P) EV_NOEXCEPT
3064{ 3492{
3065 int pri; 3493 int pri;
3066 unsigned int count = 0; 3494 unsigned int count = 0;
3067 3495
3068 for (pri = NUMPRI; pri--; ) 3496 for (pri = NUMPRI; pri--; )
3069 count += pendingcnt [pri]; 3497 count += pendingcnt [pri];
3070 3498
3071 return count; 3499 return count;
3072} 3500}
3073 3501
3074void noinline 3502ecb_noinline
3503void
3075ev_invoke_pending (EV_P) 3504ev_invoke_pending (EV_P)
3076{ 3505{
3077 pendingpri = NUMPRI; 3506 pendingpri = NUMPRI;
3078 3507
3079 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3508 do
3080 { 3509 {
3081 --pendingpri; 3510 --pendingpri;
3082 3511
3512 /* pendingpri possibly gets modified in the inner loop */
3083 while (pendingcnt [pendingpri]) 3513 while (pendingcnt [pendingpri])
3084 { 3514 {
3085 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3515 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3086 3516
3087 p->w->pending = 0; 3517 p->w->pending = 0;
3088 EV_CB_INVOKE (p->w, p->events); 3518 EV_CB_INVOKE (p->w, p->events);
3089 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
3090 } 3520 }
3091 } 3521 }
3522 while (pendingpri);
3092} 3523}
3093 3524
3094#if EV_IDLE_ENABLE 3525#if EV_IDLE_ENABLE
3095/* make idle watchers pending. this handles the "call-idle */ 3526/* make idle watchers pending. this handles the "call-idle */
3096/* only when higher priorities are idle" logic */ 3527/* only when higher priorities are idle" logic */
3097inline_size void 3528inline_size void
3098idle_reify (EV_P) 3529idle_reify (EV_P)
3099{ 3530{
3100 if (expect_false (idleall)) 3531 if (ecb_expect_false (idleall))
3101 { 3532 {
3102 int pri; 3533 int pri;
3103 3534
3104 for (pri = NUMPRI; pri--; ) 3535 for (pri = NUMPRI; pri--; )
3105 { 3536 {
… …
3135 { 3566 {
3136 ev_at (w) += w->repeat; 3567 ev_at (w) += w->repeat;
3137 if (ev_at (w) < mn_now) 3568 if (ev_at (w) < mn_now)
3138 ev_at (w) = mn_now; 3569 ev_at (w) = mn_now;
3139 3570
3140 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3571 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3141 3572
3142 ANHE_at_cache (timers [HEAP0]); 3573 ANHE_at_cache (timers [HEAP0]);
3143 downheap (timers, timercnt, HEAP0); 3574 downheap (timers, timercnt, HEAP0);
3144 } 3575 }
3145 else 3576 else
… …
3154 } 3585 }
3155} 3586}
3156 3587
3157#if EV_PERIODIC_ENABLE 3588#if EV_PERIODIC_ENABLE
3158 3589
3159static void noinline 3590ecb_noinline
3591static void
3160periodic_recalc (EV_P_ ev_periodic *w) 3592periodic_recalc (EV_P_ ev_periodic *w)
3161{ 3593{
3162 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3594 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3163 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3595 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3164 3596
… …
3166 while (at <= ev_rt_now) 3598 while (at <= ev_rt_now)
3167 { 3599 {
3168 ev_tstamp nat = at + w->interval; 3600 ev_tstamp nat = at + w->interval;
3169 3601
3170 /* when resolution fails us, we use ev_rt_now */ 3602 /* when resolution fails us, we use ev_rt_now */
3171 if (expect_false (nat == at)) 3603 if (ecb_expect_false (nat == at))
3172 { 3604 {
3173 at = ev_rt_now; 3605 at = ev_rt_now;
3174 break; 3606 break;
3175 } 3607 }
3176 3608
… …
3222 } 3654 }
3223} 3655}
3224 3656
3225/* simply recalculate all periodics */ 3657/* simply recalculate all periodics */
3226/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3658/* TODO: maybe ensure that at least one event happens when jumping forward? */
3227static void noinline ecb_cold 3659ecb_noinline ecb_cold
3660static void
3228periodics_reschedule (EV_P) 3661periodics_reschedule (EV_P)
3229{ 3662{
3230 int i; 3663 int i;
3231 3664
3232 /* adjust periodics after time jump */ 3665 /* adjust periodics after time jump */
… …
3245 reheap (periodics, periodiccnt); 3678 reheap (periodics, periodiccnt);
3246} 3679}
3247#endif 3680#endif
3248 3681
3249/* adjust all timers by a given offset */ 3682/* adjust all timers by a given offset */
3250static void noinline ecb_cold 3683ecb_noinline ecb_cold
3684static void
3251timers_reschedule (EV_P_ ev_tstamp adjust) 3685timers_reschedule (EV_P_ ev_tstamp adjust)
3252{ 3686{
3253 int i; 3687 int i;
3254 3688
3255 for (i = 0; i < timercnt; ++i) 3689 for (i = 0; i < timercnt; ++i)
… …
3264/* also detect if there was a timejump, and act accordingly */ 3698/* also detect if there was a timejump, and act accordingly */
3265inline_speed void 3699inline_speed void
3266time_update (EV_P_ ev_tstamp max_block) 3700time_update (EV_P_ ev_tstamp max_block)
3267{ 3701{
3268#if EV_USE_MONOTONIC 3702#if EV_USE_MONOTONIC
3269 if (expect_true (have_monotonic)) 3703 if (ecb_expect_true (have_monotonic))
3270 { 3704 {
3271 int i; 3705 int i;
3272 ev_tstamp odiff = rtmn_diff; 3706 ev_tstamp odiff = rtmn_diff;
3273 3707
3274 mn_now = get_clock (); 3708 mn_now = get_clock ();
3275 3709
3276 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3710 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3277 /* interpolate in the meantime */ 3711 /* interpolate in the meantime */
3278 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3712 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3279 { 3713 {
3280 ev_rt_now = rtmn_diff + mn_now; 3714 ev_rt_now = rtmn_diff + mn_now;
3281 return; 3715 return;
3282 } 3716 }
3283 3717
… …
3297 ev_tstamp diff; 3731 ev_tstamp diff;
3298 rtmn_diff = ev_rt_now - mn_now; 3732 rtmn_diff = ev_rt_now - mn_now;
3299 3733
3300 diff = odiff - rtmn_diff; 3734 diff = odiff - rtmn_diff;
3301 3735
3302 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3736 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3303 return; /* all is well */ 3737 return; /* all is well */
3304 3738
3305 ev_rt_now = ev_time (); 3739 ev_rt_now = ev_time ();
3306 mn_now = get_clock (); 3740 mn_now = get_clock ();
3307 now_floor = mn_now; 3741 now_floor = mn_now;
… …
3316 else 3750 else
3317#endif 3751#endif
3318 { 3752 {
3319 ev_rt_now = ev_time (); 3753 ev_rt_now = ev_time ();
3320 3754
3321 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3755 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3322 { 3756 {
3323 /* adjust timers. this is easy, as the offset is the same for all of them */ 3757 /* adjust timers. this is easy, as the offset is the same for all of them */
3324 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3758 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3325#if EV_PERIODIC_ENABLE 3759#if EV_PERIODIC_ENABLE
3326 periodics_reschedule (EV_A); 3760 periodics_reschedule (EV_A);
… …
3349#if EV_VERIFY >= 2 3783#if EV_VERIFY >= 2
3350 ev_verify (EV_A); 3784 ev_verify (EV_A);
3351#endif 3785#endif
3352 3786
3353#ifndef _WIN32 3787#ifndef _WIN32
3354 if (expect_false (curpid)) /* penalise the forking check even more */ 3788 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3355 if (expect_false (getpid () != curpid)) 3789 if (ecb_expect_false (getpid () != curpid))
3356 { 3790 {
3357 curpid = getpid (); 3791 curpid = getpid ();
3358 postfork = 1; 3792 postfork = 1;
3359 } 3793 }
3360#endif 3794#endif
3361 3795
3362#if EV_FORK_ENABLE 3796#if EV_FORK_ENABLE
3363 /* we might have forked, so queue fork handlers */ 3797 /* we might have forked, so queue fork handlers */
3364 if (expect_false (postfork)) 3798 if (ecb_expect_false (postfork))
3365 if (forkcnt) 3799 if (forkcnt)
3366 { 3800 {
3367 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3801 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3368 EV_INVOKE_PENDING; 3802 EV_INVOKE_PENDING;
3369 } 3803 }
3370#endif 3804#endif
3371 3805
3372#if EV_PREPARE_ENABLE 3806#if EV_PREPARE_ENABLE
3373 /* queue prepare watchers (and execute them) */ 3807 /* queue prepare watchers (and execute them) */
3374 if (expect_false (preparecnt)) 3808 if (ecb_expect_false (preparecnt))
3375 { 3809 {
3376 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3810 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3377 EV_INVOKE_PENDING; 3811 EV_INVOKE_PENDING;
3378 } 3812 }
3379#endif 3813#endif
3380 3814
3381 if (expect_false (loop_done)) 3815 if (ecb_expect_false (loop_done))
3382 break; 3816 break;
3383 3817
3384 /* we might have forked, so reify kernel state if necessary */ 3818 /* we might have forked, so reify kernel state if necessary */
3385 if (expect_false (postfork)) 3819 if (ecb_expect_false (postfork))
3386 loop_fork (EV_A); 3820 loop_fork (EV_A);
3387 3821
3388 /* update fd-related kernel structures */ 3822 /* update fd-related kernel structures */
3389 fd_reify (EV_A); 3823 fd_reify (EV_A);
3390 3824
… …
3395 3829
3396 /* remember old timestamp for io_blocktime calculation */ 3830 /* remember old timestamp for io_blocktime calculation */
3397 ev_tstamp prev_mn_now = mn_now; 3831 ev_tstamp prev_mn_now = mn_now;
3398 3832
3399 /* update time to cancel out callback processing overhead */ 3833 /* update time to cancel out callback processing overhead */
3400 time_update (EV_A_ 1e100); 3834 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3401 3835
3402 /* from now on, we want a pipe-wake-up */ 3836 /* from now on, we want a pipe-wake-up */
3403 pipe_write_wanted = 1; 3837 pipe_write_wanted = 1;
3404 3838
3405 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3839 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3406 3840
3407 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3841 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3408 { 3842 {
3409 waittime = MAX_BLOCKTIME; 3843 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3410 3844
3411 if (timercnt) 3845 if (timercnt)
3412 { 3846 {
3413 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3847 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3414 if (waittime > to) waittime = to; 3848 if (waittime > to) waittime = to;
… …
3421 if (waittime > to) waittime = to; 3855 if (waittime > to) waittime = to;
3422 } 3856 }
3423#endif 3857#endif
3424 3858
3425 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3859 /* don't let timeouts decrease the waittime below timeout_blocktime */
3426 if (expect_false (waittime < timeout_blocktime)) 3860 if (ecb_expect_false (waittime < timeout_blocktime))
3427 waittime = timeout_blocktime; 3861 waittime = timeout_blocktime;
3428 3862
3429 /* at this point, we NEED to wait, so we have to ensure */ 3863 /* now there are two more special cases left, either we have
3430 /* to pass a minimum nonzero value to the backend */ 3864 * already-expired timers, so we should not sleep, or we have timers
3865 * that expire very soon, in which case we need to wait for a minimum
3866 * amount of time for some event loop backends.
3867 */
3431 if (expect_false (waittime < backend_mintime)) 3868 if (ecb_expect_false (waittime < backend_mintime))
3869 waittime = waittime <= EV_TS_CONST (0.)
3870 ? EV_TS_CONST (0.)
3432 waittime = backend_mintime; 3871 : backend_mintime;
3433 3872
3434 /* extra check because io_blocktime is commonly 0 */ 3873 /* extra check because io_blocktime is commonly 0 */
3435 if (expect_false (io_blocktime)) 3874 if (ecb_expect_false (io_blocktime))
3436 { 3875 {
3437 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3876 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3438 3877
3439 if (sleeptime > waittime - backend_mintime) 3878 if (sleeptime > waittime - backend_mintime)
3440 sleeptime = waittime - backend_mintime; 3879 sleeptime = waittime - backend_mintime;
3441 3880
3442 if (expect_true (sleeptime > 0.)) 3881 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3443 { 3882 {
3444 ev_sleep (sleeptime); 3883 ev_sleep (sleeptime);
3445 waittime -= sleeptime; 3884 waittime -= sleeptime;
3446 } 3885 }
3447 } 3886 }
… …
3461 { 3900 {
3462 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3901 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3463 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3902 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3464 } 3903 }
3465 3904
3466
3467 /* update ev_rt_now, do magic */ 3905 /* update ev_rt_now, do magic */
3468 time_update (EV_A_ waittime + sleeptime); 3906 time_update (EV_A_ waittime + sleeptime);
3469 } 3907 }
3470 3908
3471 /* queue pending timers and reschedule them */ 3909 /* queue pending timers and reschedule them */
… …
3479 idle_reify (EV_A); 3917 idle_reify (EV_A);
3480#endif 3918#endif
3481 3919
3482#if EV_CHECK_ENABLE 3920#if EV_CHECK_ENABLE
3483 /* queue check watchers, to be executed first */ 3921 /* queue check watchers, to be executed first */
3484 if (expect_false (checkcnt)) 3922 if (ecb_expect_false (checkcnt))
3485 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3923 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3486#endif 3924#endif
3487 3925
3488 EV_INVOKE_PENDING; 3926 EV_INVOKE_PENDING;
3489 } 3927 }
3490 while (expect_true ( 3928 while (ecb_expect_true (
3491 activecnt 3929 activecnt
3492 && !loop_done 3930 && !loop_done
3493 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3931 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3494 )); 3932 ));
3495 3933
… …
3502 3940
3503 return activecnt; 3941 return activecnt;
3504} 3942}
3505 3943
3506void 3944void
3507ev_break (EV_P_ int how) EV_THROW 3945ev_break (EV_P_ int how) EV_NOEXCEPT
3508{ 3946{
3509 loop_done = how; 3947 loop_done = how;
3510} 3948}
3511 3949
3512void 3950void
3513ev_ref (EV_P) EV_THROW 3951ev_ref (EV_P) EV_NOEXCEPT
3514{ 3952{
3515 ++activecnt; 3953 ++activecnt;
3516} 3954}
3517 3955
3518void 3956void
3519ev_unref (EV_P) EV_THROW 3957ev_unref (EV_P) EV_NOEXCEPT
3520{ 3958{
3521 --activecnt; 3959 --activecnt;
3522} 3960}
3523 3961
3524void 3962void
3525ev_now_update (EV_P) EV_THROW 3963ev_now_update (EV_P) EV_NOEXCEPT
3526{ 3964{
3527 time_update (EV_A_ 1e100); 3965 time_update (EV_A_ EV_TSTAMP_HUGE);
3528} 3966}
3529 3967
3530void 3968void
3531ev_suspend (EV_P) EV_THROW 3969ev_suspend (EV_P) EV_NOEXCEPT
3532{ 3970{
3533 ev_now_update (EV_A); 3971 ev_now_update (EV_A);
3534} 3972}
3535 3973
3536void 3974void
3537ev_resume (EV_P) EV_THROW 3975ev_resume (EV_P) EV_NOEXCEPT
3538{ 3976{
3539 ev_tstamp mn_prev = mn_now; 3977 ev_tstamp mn_prev = mn_now;
3540 3978
3541 ev_now_update (EV_A); 3979 ev_now_update (EV_A);
3542 timers_reschedule (EV_A_ mn_now - mn_prev); 3980 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3559inline_size void 3997inline_size void
3560wlist_del (WL *head, WL elem) 3998wlist_del (WL *head, WL elem)
3561{ 3999{
3562 while (*head) 4000 while (*head)
3563 { 4001 {
3564 if (expect_true (*head == elem)) 4002 if (ecb_expect_true (*head == elem))
3565 { 4003 {
3566 *head = elem->next; 4004 *head = elem->next;
3567 break; 4005 break;
3568 } 4006 }
3569 4007
… …
3581 w->pending = 0; 4019 w->pending = 0;
3582 } 4020 }
3583} 4021}
3584 4022
3585int 4023int
3586ev_clear_pending (EV_P_ void *w) EV_THROW 4024ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3587{ 4025{
3588 W w_ = (W)w; 4026 W w_ = (W)w;
3589 int pending = w_->pending; 4027 int pending = w_->pending;
3590 4028
3591 if (expect_true (pending)) 4029 if (ecb_expect_true (pending))
3592 { 4030 {
3593 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4031 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3594 p->w = (W)&pending_w; 4032 p->w = (W)&pending_w;
3595 w_->pending = 0; 4033 w_->pending = 0;
3596 return p->events; 4034 return p->events;
… …
3623 w->active = 0; 4061 w->active = 0;
3624} 4062}
3625 4063
3626/*****************************************************************************/ 4064/*****************************************************************************/
3627 4065
3628void noinline 4066ecb_noinline
4067void
3629ev_io_start (EV_P_ ev_io *w) EV_THROW 4068ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3630{ 4069{
3631 int fd = w->fd; 4070 int fd = w->fd;
3632 4071
3633 if (expect_false (ev_is_active (w))) 4072 if (ecb_expect_false (ev_is_active (w)))
3634 return; 4073 return;
3635 4074
3636 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4075 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3637 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4076 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3638 4077
4078#if EV_VERIFY >= 2
4079 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4080#endif
3639 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3640 4082
3641 ev_start (EV_A_ (W)w, 1); 4083 ev_start (EV_A_ (W)w, 1);
3642 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4084 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3643 wlist_add (&anfds[fd].head, (WL)w); 4085 wlist_add (&anfds[fd].head, (WL)w);
3644 4086
3645 /* common bug, apparently */ 4087 /* common bug, apparently */
3646 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4088 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3647 4089
… …
3649 w->events &= ~EV__IOFDSET; 4091 w->events &= ~EV__IOFDSET;
3650 4092
3651 EV_FREQUENT_CHECK; 4093 EV_FREQUENT_CHECK;
3652} 4094}
3653 4095
3654void noinline 4096ecb_noinline
4097void
3655ev_io_stop (EV_P_ ev_io *w) EV_THROW 4098ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3656{ 4099{
3657 clear_pending (EV_A_ (W)w); 4100 clear_pending (EV_A_ (W)w);
3658 if (expect_false (!ev_is_active (w))) 4101 if (ecb_expect_false (!ev_is_active (w)))
3659 return; 4102 return;
3660 4103
3661 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4104 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3662 4105
4106#if EV_VERIFY >= 2
4107 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4108#endif
3663 EV_FREQUENT_CHECK; 4109 EV_FREQUENT_CHECK;
3664 4110
3665 wlist_del (&anfds[w->fd].head, (WL)w); 4111 wlist_del (&anfds[w->fd].head, (WL)w);
3666 ev_stop (EV_A_ (W)w); 4112 ev_stop (EV_A_ (W)w);
3667 4113
3668 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4114 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3669 4115
3670 EV_FREQUENT_CHECK; 4116 EV_FREQUENT_CHECK;
3671} 4117}
3672 4118
3673void noinline 4119ecb_noinline
4120void
3674ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4121ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3675{ 4122{
3676 if (expect_false (ev_is_active (w))) 4123 if (ecb_expect_false (ev_is_active (w)))
3677 return; 4124 return;
3678 4125
3679 ev_at (w) += mn_now; 4126 ev_at (w) += mn_now;
3680 4127
3681 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4128 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3682 4129
3683 EV_FREQUENT_CHECK; 4130 EV_FREQUENT_CHECK;
3684 4131
3685 ++timercnt; 4132 ++timercnt;
3686 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4133 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3687 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4134 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3688 ANHE_w (timers [ev_active (w)]) = (WT)w; 4135 ANHE_w (timers [ev_active (w)]) = (WT)w;
3689 ANHE_at_cache (timers [ev_active (w)]); 4136 ANHE_at_cache (timers [ev_active (w)]);
3690 upheap (timers, ev_active (w)); 4137 upheap (timers, ev_active (w));
3691 4138
3692 EV_FREQUENT_CHECK; 4139 EV_FREQUENT_CHECK;
3693 4140
3694 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4141 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3695} 4142}
3696 4143
3697void noinline 4144ecb_noinline
4145void
3698ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4146ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3699{ 4147{
3700 clear_pending (EV_A_ (W)w); 4148 clear_pending (EV_A_ (W)w);
3701 if (expect_false (!ev_is_active (w))) 4149 if (ecb_expect_false (!ev_is_active (w)))
3702 return; 4150 return;
3703 4151
3704 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
3705 4153
3706 { 4154 {
… …
3708 4156
3709 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4157 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3710 4158
3711 --timercnt; 4159 --timercnt;
3712 4160
3713 if (expect_true (active < timercnt + HEAP0)) 4161 if (ecb_expect_true (active < timercnt + HEAP0))
3714 { 4162 {
3715 timers [active] = timers [timercnt + HEAP0]; 4163 timers [active] = timers [timercnt + HEAP0];
3716 adjustheap (timers, timercnt, active); 4164 adjustheap (timers, timercnt, active);
3717 } 4165 }
3718 } 4166 }
… …
3722 ev_stop (EV_A_ (W)w); 4170 ev_stop (EV_A_ (W)w);
3723 4171
3724 EV_FREQUENT_CHECK; 4172 EV_FREQUENT_CHECK;
3725} 4173}
3726 4174
3727void noinline 4175ecb_noinline
4176void
3728ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4177ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3729{ 4178{
3730 EV_FREQUENT_CHECK; 4179 EV_FREQUENT_CHECK;
3731 4180
3732 clear_pending (EV_A_ (W)w); 4181 clear_pending (EV_A_ (W)w);
3733 4182
… …
3750 4199
3751 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3752} 4201}
3753 4202
3754ev_tstamp 4203ev_tstamp
3755ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4204ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3756{ 4205{
3757 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4206 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3758} 4207}
3759 4208
3760#if EV_PERIODIC_ENABLE 4209#if EV_PERIODIC_ENABLE
3761void noinline 4210ecb_noinline
4211void
3762ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4212ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3763{ 4213{
3764 if (expect_false (ev_is_active (w))) 4214 if (ecb_expect_false (ev_is_active (w)))
3765 return; 4215 return;
3766 4216
3767 if (w->reschedule_cb) 4217 if (w->reschedule_cb)
3768 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4218 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3769 else if (w->interval) 4219 else if (w->interval)
… …
3776 4226
3777 EV_FREQUENT_CHECK; 4227 EV_FREQUENT_CHECK;
3778 4228
3779 ++periodiccnt; 4229 ++periodiccnt;
3780 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4230 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3781 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4231 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3782 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4232 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3783 ANHE_at_cache (periodics [ev_active (w)]); 4233 ANHE_at_cache (periodics [ev_active (w)]);
3784 upheap (periodics, ev_active (w)); 4234 upheap (periodics, ev_active (w));
3785 4235
3786 EV_FREQUENT_CHECK; 4236 EV_FREQUENT_CHECK;
3787 4237
3788 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4238 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3789} 4239}
3790 4240
3791void noinline 4241ecb_noinline
4242void
3792ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4243ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3793{ 4244{
3794 clear_pending (EV_A_ (W)w); 4245 clear_pending (EV_A_ (W)w);
3795 if (expect_false (!ev_is_active (w))) 4246 if (ecb_expect_false (!ev_is_active (w)))
3796 return; 4247 return;
3797 4248
3798 EV_FREQUENT_CHECK; 4249 EV_FREQUENT_CHECK;
3799 4250
3800 { 4251 {
… …
3802 4253
3803 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4254 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3804 4255
3805 --periodiccnt; 4256 --periodiccnt;
3806 4257
3807 if (expect_true (active < periodiccnt + HEAP0)) 4258 if (ecb_expect_true (active < periodiccnt + HEAP0))
3808 { 4259 {
3809 periodics [active] = periodics [periodiccnt + HEAP0]; 4260 periodics [active] = periodics [periodiccnt + HEAP0];
3810 adjustheap (periodics, periodiccnt, active); 4261 adjustheap (periodics, periodiccnt, active);
3811 } 4262 }
3812 } 4263 }
… …
3814 ev_stop (EV_A_ (W)w); 4265 ev_stop (EV_A_ (W)w);
3815 4266
3816 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3817} 4268}
3818 4269
3819void noinline 4270ecb_noinline
4271void
3820ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4272ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3821{ 4273{
3822 /* TODO: use adjustheap and recalculation */ 4274 /* TODO: use adjustheap and recalculation */
3823 ev_periodic_stop (EV_A_ w); 4275 ev_periodic_stop (EV_A_ w);
3824 ev_periodic_start (EV_A_ w); 4276 ev_periodic_start (EV_A_ w);
3825} 4277}
… …
3829# define SA_RESTART 0 4281# define SA_RESTART 0
3830#endif 4282#endif
3831 4283
3832#if EV_SIGNAL_ENABLE 4284#if EV_SIGNAL_ENABLE
3833 4285
3834void noinline 4286ecb_noinline
4287void
3835ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4288ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3836{ 4289{
3837 if (expect_false (ev_is_active (w))) 4290 if (ecb_expect_false (ev_is_active (w)))
3838 return; 4291 return;
3839 4292
3840 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4293 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3841 4294
3842#if EV_MULTIPLICITY 4295#if EV_MULTIPLICITY
… …
3911 } 4364 }
3912 4365
3913 EV_FREQUENT_CHECK; 4366 EV_FREQUENT_CHECK;
3914} 4367}
3915 4368
3916void noinline 4369ecb_noinline
4370void
3917ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4371ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3918{ 4372{
3919 clear_pending (EV_A_ (W)w); 4373 clear_pending (EV_A_ (W)w);
3920 if (expect_false (!ev_is_active (w))) 4374 if (ecb_expect_false (!ev_is_active (w)))
3921 return; 4375 return;
3922 4376
3923 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
3924 4378
3925 wlist_del (&signals [w->signum - 1].head, (WL)w); 4379 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3953#endif 4407#endif
3954 4408
3955#if EV_CHILD_ENABLE 4409#if EV_CHILD_ENABLE
3956 4410
3957void 4411void
3958ev_child_start (EV_P_ ev_child *w) EV_THROW 4412ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3959{ 4413{
3960#if EV_MULTIPLICITY 4414#if EV_MULTIPLICITY
3961 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4415 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3962#endif 4416#endif
3963 if (expect_false (ev_is_active (w))) 4417 if (ecb_expect_false (ev_is_active (w)))
3964 return; 4418 return;
3965 4419
3966 EV_FREQUENT_CHECK; 4420 EV_FREQUENT_CHECK;
3967 4421
3968 ev_start (EV_A_ (W)w, 1); 4422 ev_start (EV_A_ (W)w, 1);
… …
3970 4424
3971 EV_FREQUENT_CHECK; 4425 EV_FREQUENT_CHECK;
3972} 4426}
3973 4427
3974void 4428void
3975ev_child_stop (EV_P_ ev_child *w) EV_THROW 4429ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3976{ 4430{
3977 clear_pending (EV_A_ (W)w); 4431 clear_pending (EV_A_ (W)w);
3978 if (expect_false (!ev_is_active (w))) 4432 if (ecb_expect_false (!ev_is_active (w)))
3979 return; 4433 return;
3980 4434
3981 EV_FREQUENT_CHECK; 4435 EV_FREQUENT_CHECK;
3982 4436
3983 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4437 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3997 4451
3998#define DEF_STAT_INTERVAL 5.0074891 4452#define DEF_STAT_INTERVAL 5.0074891
3999#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4453#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4000#define MIN_STAT_INTERVAL 0.1074891 4454#define MIN_STAT_INTERVAL 0.1074891
4001 4455
4002static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4456ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4003 4457
4004#if EV_USE_INOTIFY 4458#if EV_USE_INOTIFY
4005 4459
4006/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4460/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4007# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4461# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4008 4462
4009static void noinline 4463ecb_noinline
4464static void
4010infy_add (EV_P_ ev_stat *w) 4465infy_add (EV_P_ ev_stat *w)
4011{ 4466{
4012 w->wd = inotify_add_watch (fs_fd, w->path, 4467 w->wd = inotify_add_watch (fs_fd, w->path,
4013 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4468 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4014 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4469 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4078 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4533 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4079 ev_timer_again (EV_A_ &w->timer); 4534 ev_timer_again (EV_A_ &w->timer);
4080 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4535 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4081} 4536}
4082 4537
4083static void noinline 4538ecb_noinline
4539static void
4084infy_del (EV_P_ ev_stat *w) 4540infy_del (EV_P_ ev_stat *w)
4085{ 4541{
4086 int slot; 4542 int slot;
4087 int wd = w->wd; 4543 int wd = w->wd;
4088 4544
… …
4095 4551
4096 /* remove this watcher, if others are watching it, they will rearm */ 4552 /* remove this watcher, if others are watching it, they will rearm */
4097 inotify_rm_watch (fs_fd, wd); 4553 inotify_rm_watch (fs_fd, wd);
4098} 4554}
4099 4555
4100static void noinline 4556ecb_noinline
4557static void
4101infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4558infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4102{ 4559{
4103 if (slot < 0) 4560 if (slot < 0)
4104 /* overflow, need to check for all hash slots */ 4561 /* overflow, need to check for all hash slots */
4105 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4562 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4141 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4598 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4142 ofs += sizeof (struct inotify_event) + ev->len; 4599 ofs += sizeof (struct inotify_event) + ev->len;
4143 } 4600 }
4144} 4601}
4145 4602
4146inline_size void ecb_cold 4603inline_size ecb_cold
4604void
4147ev_check_2625 (EV_P) 4605ev_check_2625 (EV_P)
4148{ 4606{
4149 /* kernels < 2.6.25 are borked 4607 /* kernels < 2.6.25 are borked
4150 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4608 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4151 */ 4609 */
… …
4241#else 4699#else
4242# define EV_LSTAT(p,b) lstat (p, b) 4700# define EV_LSTAT(p,b) lstat (p, b)
4243#endif 4701#endif
4244 4702
4245void 4703void
4246ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4704ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4247{ 4705{
4248 if (lstat (w->path, &w->attr) < 0) 4706 if (lstat (w->path, &w->attr) < 0)
4249 w->attr.st_nlink = 0; 4707 w->attr.st_nlink = 0;
4250 else if (!w->attr.st_nlink) 4708 else if (!w->attr.st_nlink)
4251 w->attr.st_nlink = 1; 4709 w->attr.st_nlink = 1;
4252} 4710}
4253 4711
4254static void noinline 4712ecb_noinline
4713static void
4255stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4714stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4256{ 4715{
4257 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4716 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4258 4717
4259 ev_statdata prev = w->attr; 4718 ev_statdata prev = w->attr;
… …
4290 ev_feed_event (EV_A_ w, EV_STAT); 4749 ev_feed_event (EV_A_ w, EV_STAT);
4291 } 4750 }
4292} 4751}
4293 4752
4294void 4753void
4295ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4754ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4296{ 4755{
4297 if (expect_false (ev_is_active (w))) 4756 if (ecb_expect_false (ev_is_active (w)))
4298 return; 4757 return;
4299 4758
4300 ev_stat_stat (EV_A_ w); 4759 ev_stat_stat (EV_A_ w);
4301 4760
4302 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4761 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4321 4780
4322 EV_FREQUENT_CHECK; 4781 EV_FREQUENT_CHECK;
4323} 4782}
4324 4783
4325void 4784void
4326ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4785ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4327{ 4786{
4328 clear_pending (EV_A_ (W)w); 4787 clear_pending (EV_A_ (W)w);
4329 if (expect_false (!ev_is_active (w))) 4788 if (ecb_expect_false (!ev_is_active (w)))
4330 return; 4789 return;
4331 4790
4332 EV_FREQUENT_CHECK; 4791 EV_FREQUENT_CHECK;
4333 4792
4334#if EV_USE_INOTIFY 4793#if EV_USE_INOTIFY
… …
4347} 4806}
4348#endif 4807#endif
4349 4808
4350#if EV_IDLE_ENABLE 4809#if EV_IDLE_ENABLE
4351void 4810void
4352ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4811ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4353{ 4812{
4354 if (expect_false (ev_is_active (w))) 4813 if (ecb_expect_false (ev_is_active (w)))
4355 return; 4814 return;
4356 4815
4357 pri_adjust (EV_A_ (W)w); 4816 pri_adjust (EV_A_ (W)w);
4358 4817
4359 EV_FREQUENT_CHECK; 4818 EV_FREQUENT_CHECK;
… …
4362 int active = ++idlecnt [ABSPRI (w)]; 4821 int active = ++idlecnt [ABSPRI (w)];
4363 4822
4364 ++idleall; 4823 ++idleall;
4365 ev_start (EV_A_ (W)w, active); 4824 ev_start (EV_A_ (W)w, active);
4366 4825
4367 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4826 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4368 idles [ABSPRI (w)][active - 1] = w; 4827 idles [ABSPRI (w)][active - 1] = w;
4369 } 4828 }
4370 4829
4371 EV_FREQUENT_CHECK; 4830 EV_FREQUENT_CHECK;
4372} 4831}
4373 4832
4374void 4833void
4375ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4834ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4376{ 4835{
4377 clear_pending (EV_A_ (W)w); 4836 clear_pending (EV_A_ (W)w);
4378 if (expect_false (!ev_is_active (w))) 4837 if (ecb_expect_false (!ev_is_active (w)))
4379 return; 4838 return;
4380 4839
4381 EV_FREQUENT_CHECK; 4840 EV_FREQUENT_CHECK;
4382 4841
4383 { 4842 {
… …
4394} 4853}
4395#endif 4854#endif
4396 4855
4397#if EV_PREPARE_ENABLE 4856#if EV_PREPARE_ENABLE
4398void 4857void
4399ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4858ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4400{ 4859{
4401 if (expect_false (ev_is_active (w))) 4860 if (ecb_expect_false (ev_is_active (w)))
4402 return; 4861 return;
4403 4862
4404 EV_FREQUENT_CHECK; 4863 EV_FREQUENT_CHECK;
4405 4864
4406 ev_start (EV_A_ (W)w, ++preparecnt); 4865 ev_start (EV_A_ (W)w, ++preparecnt);
4407 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4866 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4408 prepares [preparecnt - 1] = w; 4867 prepares [preparecnt - 1] = w;
4409 4868
4410 EV_FREQUENT_CHECK; 4869 EV_FREQUENT_CHECK;
4411} 4870}
4412 4871
4413void 4872void
4414ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4873ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4415{ 4874{
4416 clear_pending (EV_A_ (W)w); 4875 clear_pending (EV_A_ (W)w);
4417 if (expect_false (!ev_is_active (w))) 4876 if (ecb_expect_false (!ev_is_active (w)))
4418 return; 4877 return;
4419 4878
4420 EV_FREQUENT_CHECK; 4879 EV_FREQUENT_CHECK;
4421 4880
4422 { 4881 {
… …
4432} 4891}
4433#endif 4892#endif
4434 4893
4435#if EV_CHECK_ENABLE 4894#if EV_CHECK_ENABLE
4436void 4895void
4437ev_check_start (EV_P_ ev_check *w) EV_THROW 4896ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4438{ 4897{
4439 if (expect_false (ev_is_active (w))) 4898 if (ecb_expect_false (ev_is_active (w)))
4440 return; 4899 return;
4441 4900
4442 EV_FREQUENT_CHECK; 4901 EV_FREQUENT_CHECK;
4443 4902
4444 ev_start (EV_A_ (W)w, ++checkcnt); 4903 ev_start (EV_A_ (W)w, ++checkcnt);
4445 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4904 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4446 checks [checkcnt - 1] = w; 4905 checks [checkcnt - 1] = w;
4447 4906
4448 EV_FREQUENT_CHECK; 4907 EV_FREQUENT_CHECK;
4449} 4908}
4450 4909
4451void 4910void
4452ev_check_stop (EV_P_ ev_check *w) EV_THROW 4911ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4453{ 4912{
4454 clear_pending (EV_A_ (W)w); 4913 clear_pending (EV_A_ (W)w);
4455 if (expect_false (!ev_is_active (w))) 4914 if (ecb_expect_false (!ev_is_active (w)))
4456 return; 4915 return;
4457 4916
4458 EV_FREQUENT_CHECK; 4917 EV_FREQUENT_CHECK;
4459 4918
4460 { 4919 {
… …
4469 EV_FREQUENT_CHECK; 4928 EV_FREQUENT_CHECK;
4470} 4929}
4471#endif 4930#endif
4472 4931
4473#if EV_EMBED_ENABLE 4932#if EV_EMBED_ENABLE
4474void noinline 4933ecb_noinline
4934void
4475ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4935ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4476{ 4936{
4477 ev_run (w->other, EVRUN_NOWAIT); 4937 ev_run (w->other, EVRUN_NOWAIT);
4478} 4938}
4479 4939
4480static void 4940static void
… …
4528 ev_idle_stop (EV_A_ idle); 4988 ev_idle_stop (EV_A_ idle);
4529} 4989}
4530#endif 4990#endif
4531 4991
4532void 4992void
4533ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4993ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4534{ 4994{
4535 if (expect_false (ev_is_active (w))) 4995 if (ecb_expect_false (ev_is_active (w)))
4536 return; 4996 return;
4537 4997
4538 { 4998 {
4539 EV_P = w->other; 4999 EV_P = w->other;
4540 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5000 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4559 5019
4560 EV_FREQUENT_CHECK; 5020 EV_FREQUENT_CHECK;
4561} 5021}
4562 5022
4563void 5023void
4564ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5024ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4565{ 5025{
4566 clear_pending (EV_A_ (W)w); 5026 clear_pending (EV_A_ (W)w);
4567 if (expect_false (!ev_is_active (w))) 5027 if (ecb_expect_false (!ev_is_active (w)))
4568 return; 5028 return;
4569 5029
4570 EV_FREQUENT_CHECK; 5030 EV_FREQUENT_CHECK;
4571 5031
4572 ev_io_stop (EV_A_ &w->io); 5032 ev_io_stop (EV_A_ &w->io);
… …
4579} 5039}
4580#endif 5040#endif
4581 5041
4582#if EV_FORK_ENABLE 5042#if EV_FORK_ENABLE
4583void 5043void
4584ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5044ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4585{ 5045{
4586 if (expect_false (ev_is_active (w))) 5046 if (ecb_expect_false (ev_is_active (w)))
4587 return; 5047 return;
4588 5048
4589 EV_FREQUENT_CHECK; 5049 EV_FREQUENT_CHECK;
4590 5050
4591 ev_start (EV_A_ (W)w, ++forkcnt); 5051 ev_start (EV_A_ (W)w, ++forkcnt);
4592 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5052 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4593 forks [forkcnt - 1] = w; 5053 forks [forkcnt - 1] = w;
4594 5054
4595 EV_FREQUENT_CHECK; 5055 EV_FREQUENT_CHECK;
4596} 5056}
4597 5057
4598void 5058void
4599ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5059ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4600{ 5060{
4601 clear_pending (EV_A_ (W)w); 5061 clear_pending (EV_A_ (W)w);
4602 if (expect_false (!ev_is_active (w))) 5062 if (ecb_expect_false (!ev_is_active (w)))
4603 return; 5063 return;
4604 5064
4605 EV_FREQUENT_CHECK; 5065 EV_FREQUENT_CHECK;
4606 5066
4607 { 5067 {
… …
4617} 5077}
4618#endif 5078#endif
4619 5079
4620#if EV_CLEANUP_ENABLE 5080#if EV_CLEANUP_ENABLE
4621void 5081void
4622ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5082ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4623{ 5083{
4624 if (expect_false (ev_is_active (w))) 5084 if (ecb_expect_false (ev_is_active (w)))
4625 return; 5085 return;
4626 5086
4627 EV_FREQUENT_CHECK; 5087 EV_FREQUENT_CHECK;
4628 5088
4629 ev_start (EV_A_ (W)w, ++cleanupcnt); 5089 ev_start (EV_A_ (W)w, ++cleanupcnt);
4630 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5090 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4631 cleanups [cleanupcnt - 1] = w; 5091 cleanups [cleanupcnt - 1] = w;
4632 5092
4633 /* cleanup watchers should never keep a refcount on the loop */ 5093 /* cleanup watchers should never keep a refcount on the loop */
4634 ev_unref (EV_A); 5094 ev_unref (EV_A);
4635 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
4636} 5096}
4637 5097
4638void 5098void
4639ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5099ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4640{ 5100{
4641 clear_pending (EV_A_ (W)w); 5101 clear_pending (EV_A_ (W)w);
4642 if (expect_false (!ev_is_active (w))) 5102 if (ecb_expect_false (!ev_is_active (w)))
4643 return; 5103 return;
4644 5104
4645 EV_FREQUENT_CHECK; 5105 EV_FREQUENT_CHECK;
4646 ev_ref (EV_A); 5106 ev_ref (EV_A);
4647 5107
… …
4658} 5118}
4659#endif 5119#endif
4660 5120
4661#if EV_ASYNC_ENABLE 5121#if EV_ASYNC_ENABLE
4662void 5122void
4663ev_async_start (EV_P_ ev_async *w) EV_THROW 5123ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4664{ 5124{
4665 if (expect_false (ev_is_active (w))) 5125 if (ecb_expect_false (ev_is_active (w)))
4666 return; 5126 return;
4667 5127
4668 w->sent = 0; 5128 w->sent = 0;
4669 5129
4670 evpipe_init (EV_A); 5130 evpipe_init (EV_A);
4671 5131
4672 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4673 5133
4674 ev_start (EV_A_ (W)w, ++asynccnt); 5134 ev_start (EV_A_ (W)w, ++asynccnt);
4675 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5135 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4676 asyncs [asynccnt - 1] = w; 5136 asyncs [asynccnt - 1] = w;
4677 5137
4678 EV_FREQUENT_CHECK; 5138 EV_FREQUENT_CHECK;
4679} 5139}
4680 5140
4681void 5141void
4682ev_async_stop (EV_P_ ev_async *w) EV_THROW 5142ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4683{ 5143{
4684 clear_pending (EV_A_ (W)w); 5144 clear_pending (EV_A_ (W)w);
4685 if (expect_false (!ev_is_active (w))) 5145 if (ecb_expect_false (!ev_is_active (w)))
4686 return; 5146 return;
4687 5147
4688 EV_FREQUENT_CHECK; 5148 EV_FREQUENT_CHECK;
4689 5149
4690 { 5150 {
… …
4698 5158
4699 EV_FREQUENT_CHECK; 5159 EV_FREQUENT_CHECK;
4700} 5160}
4701 5161
4702void 5162void
4703ev_async_send (EV_P_ ev_async *w) EV_THROW 5163ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4704{ 5164{
4705 w->sent = 1; 5165 w->sent = 1;
4706 evpipe_write (EV_A_ &async_pending); 5166 evpipe_write (EV_A_ &async_pending);
4707} 5167}
4708#endif 5168#endif
… …
4745 5205
4746 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5206 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4747} 5207}
4748 5208
4749void 5209void
4750ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5210ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4751{ 5211{
4752 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5212 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4753
4754 if (expect_false (!once))
4755 {
4756 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4757 return;
4758 }
4759 5213
4760 once->cb = cb; 5214 once->cb = cb;
4761 once->arg = arg; 5215 once->arg = arg;
4762 5216
4763 ev_init (&once->io, once_cb_io); 5217 ev_init (&once->io, once_cb_io);
… …
4776} 5230}
4777 5231
4778/*****************************************************************************/ 5232/*****************************************************************************/
4779 5233
4780#if EV_WALK_ENABLE 5234#if EV_WALK_ENABLE
4781void ecb_cold 5235ecb_cold
5236void
4782ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5237ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4783{ 5238{
4784 int i, j; 5239 int i, j;
4785 ev_watcher_list *wl, *wn; 5240 ev_watcher_list *wl, *wn;
4786 5241
4787 if (types & (EV_IO | EV_EMBED)) 5242 if (types & (EV_IO | EV_EMBED))

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