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Comparing libev/ev.c (file contents):
Revision 1.475 by sf-exg, Wed Apr 1 06:57:41 2015 UTC vs.
Revision 1.501 by root, Mon Jul 1 21:47:42 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
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 132# endif
124# else 133# else
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
313 324
314#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
315# define EV_USE_PORT 0 326# define EV_USE_PORT 0
316#endif 327#endif
317 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
337#ifndef EV_USE_IOURING
338# if __linux
339# define EV_USE_IOURING 0
340# else
341# define EV_USE_IOURING 0
342# endif
343#endif
344
318#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
320# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
321# else 348# else
322# define EV_USE_INOTIFY 0 349# define EV_USE_INOTIFY 0
… …
363 390
364#ifndef EV_HEAP_CACHE_AT 391#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 392# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 393#endif
367 394
368#ifdef ANDROID 395#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 396/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 397# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 398# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 399/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 400# undef EV_USE_CLOCK_SYSCALL
… …
387# include <sys/syscall.h> 414# include <sys/syscall.h>
388# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
390# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
391# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
392# else 420# else
393# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
394# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
395# endif 423# endif
396#endif 424#endif
… …
414 442
415#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
416/* hp-ux has it in sys/time.h, which we unconditionally include above */ 444/* hp-ux has it in sys/time.h, which we unconditionally include above */
417# if !defined _WIN32 && !defined __hpux 445# if !defined _WIN32 && !defined __hpux
418# include <sys/select.h> 446# include <sys/select.h>
447# endif
448#endif
449
450#if EV_USE_LINUXAIO
451# include <sys/syscall.h>
452# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */
453# undef EV_USE_LINUXAIO
454# define EV_USE_LINUXAIO 0
455# else
456# define EV_NEED_SYSCALL 1
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !__alpha && !SYS_io_uring_setup
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
419# endif 472# endif
420#endif 473#endif
421 474
422#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
423# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
465 uint32_t ssi_signo; 518 uint32_t ssi_signo;
466 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
467}; 520};
468#endif 521#endif
469 522
470/**/ 523/*****************************************************************************/
524
525#if EV_NEED_SYSCALL
526
527#include <sys/syscall.h>
528
529/*
530 * define some syscall wrappers for common architectures
531 * this is mostly for nice looks during debugging, not performance.
532 * our syscalls return < 0, not == -1, on error. which is good
533 * enough for linux aio.
534 * TODO: arm is also common nowadays, maybe even mips and x86
535 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
536 */
537#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
538 /* the costly errno access probably kills this for size optimisation */
539
540 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5) \
541 ({ \
542 long res; \
543 register unsigned long r5 __asm__ ("r8" ); \
544 register unsigned long r4 __asm__ ("r10"); \
545 register unsigned long r3 __asm__ ("rdx"); \
546 register unsigned long r2 __asm__ ("rsi"); \
547 register unsigned long r1 __asm__ ("rdi"); \
548 if (narg >= 5) r5 = (unsigned long)(arg5); \
549 if (narg >= 4) r4 = (unsigned long)(arg4); \
550 if (narg >= 3) r3 = (unsigned long)(arg3); \
551 if (narg >= 2) r2 = (unsigned long)(arg2); \
552 if (narg >= 1) r1 = (unsigned long)(arg1); \
553 __asm__ __volatile__ ( \
554 "syscall\n\t" \
555 : "=a" (res) \
556 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
557 : "cc", "r11", "cx", "memory"); \
558 errno = -res; \
559 res; \
560 })
561
562#endif
563
564#ifdef ev_syscall
565 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0
566 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0)
567 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0)
568 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0)
569 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0)
570 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5)
571#else
572 #define ev_syscall0(nr) syscall (nr)
573 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
574 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
575 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
576 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
577 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
578#endif
579
580#endif
581
582/*****************************************************************************/
471 583
472#if EV_VERIFY >= 3 584#if EV_VERIFY >= 3
473# define EV_FREQUENT_CHECK ev_verify (EV_A) 585# define EV_FREQUENT_CHECK ev_verify (EV_A)
474#else 586#else
475# define EV_FREQUENT_CHECK do { } while (0) 587# define EV_FREQUENT_CHECK do { } while (0)
… …
532 644
533#ifndef ECB_H 645#ifndef ECB_H
534#define ECB_H 646#define ECB_H
535 647
536/* 16 bits major, 16 bits minor */ 648/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004 649#define ECB_VERSION 0x00010006
538 650
539#ifdef _WIN32 651#ifdef _WIN32
540 typedef signed char int8_t; 652 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 653 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 654 typedef signed short int16_t;
… …
559 typedef uint32_t uintptr_t; 671 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t; 672 typedef int32_t intptr_t;
561 #endif 673 #endif
562#else 674#else
563 #include <inttypes.h> 675 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU 676 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
566 #else 678 #else
567 #define ECB_PTRSIZE 4 679 #define ECB_PTRSIZE 4
568 #endif 680 #endif
569#endif 681#endif
… …
607 #define ECB_CLANG_EXTENSION(x) 0 719 #define ECB_CLANG_EXTENSION(x) 0
608#endif 720#endif
609 721
610#define ECB_CPP (__cplusplus+0) 722#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L) 723#define ECB_CPP11 (__cplusplus >= 201103L)
724#define ECB_CPP14 (__cplusplus >= 201402L)
725#define ECB_CPP17 (__cplusplus >= 201703L)
612 726
613#if ECB_CPP 727#if ECB_CPP
614 #define ECB_C 0 728 #define ECB_C 0
615 #define ECB_STDC_VERSION 0 729 #define ECB_STDC_VERSION 0
616#else 730#else
… …
618 #define ECB_STDC_VERSION __STDC_VERSION__ 732 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif 733#endif
620 734
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 735#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 736#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
737#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
623 738
624#if ECB_CPP 739#if ECB_CPP
625 #define ECB_EXTERN_C extern "C" 740 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 741 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END } 742 #define ECB_EXTERN_C_END }
… …
642 757
643#if ECB_NO_SMP 758#if ECB_NO_SMP
644 #define ECB_MEMORY_FENCE do { } while (0) 759 #define ECB_MEMORY_FENCE do { } while (0)
645#endif 760#endif
646 761
762/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
763#if __xlC__ && ECB_CPP
764 #include <builtins.h>
765#endif
766
767#if 1400 <= _MSC_VER
768 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
769#endif
770
647#ifndef ECB_MEMORY_FENCE 771#ifndef ECB_MEMORY_FENCE
648 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 772 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
773 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
649 #if __i386 || __i386__ 774 #if __i386 || __i386__
650 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 775 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
651 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 776 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
652 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 777 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
653 #elif ECB_GCC_AMD64 778 #elif ECB_GCC_AMD64
654 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 779 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
655 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 780 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
656 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 781 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
657 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 782 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
658 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 783 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
784 #elif defined __ARM_ARCH_2__ \
785 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
786 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
787 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
788 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
789 || defined __ARM_ARCH_5TEJ__
790 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
659 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 791 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
660 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 792 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
793 || defined __ARM_ARCH_6T2__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 794 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
662 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 795 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
663 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 796 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 797 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
665 #elif __aarch64__ 798 #elif __aarch64__
666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 799 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
667 #elif (__sparc || __sparc__) && !__sparcv8 800 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 801 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 802 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 803 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
671 #elif defined __s390__ || defined __s390x__ 804 #elif defined __s390__ || defined __s390x__
672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 805 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
695 #if ECB_GCC_VERSION(4,7) 828 #if ECB_GCC_VERSION(4,7)
696 /* see comment below (stdatomic.h) about the C11 memory model. */ 829 /* see comment below (stdatomic.h) about the C11 memory model. */
697 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 830 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
698 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 831 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
699 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 832 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
833 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
700 834
701 #elif ECB_CLANG_EXTENSION(c_atomic) 835 #elif ECB_CLANG_EXTENSION(c_atomic)
702 /* see comment below (stdatomic.h) about the C11 memory model. */ 836 /* see comment below (stdatomic.h) about the C11 memory model. */
703 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 837 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
704 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 838 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
705 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 839 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
840 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
706 841
707 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 842 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
708 #define ECB_MEMORY_FENCE __sync_synchronize () 843 #define ECB_MEMORY_FENCE __sync_synchronize ()
709 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 844 #elif _MSC_VER >= 1500 /* VC++ 2008 */
710 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 845 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
720 #elif defined _WIN32 855 #elif defined _WIN32
721 #include <WinNT.h> 856 #include <WinNT.h>
722 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 857 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
723 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 858 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
724 #include <mbarrier.h> 859 #include <mbarrier.h>
725 #define ECB_MEMORY_FENCE __machine_rw_barrier () 860 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
726 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 861 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
727 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 862 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
863 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
728 #elif __xlC__ 864 #elif __xlC__
729 #define ECB_MEMORY_FENCE __sync () 865 #define ECB_MEMORY_FENCE __sync ()
730 #endif 866 #endif
731#endif 867#endif
732 868
733#ifndef ECB_MEMORY_FENCE 869#ifndef ECB_MEMORY_FENCE
734 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 870 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
735 /* we assume that these memory fences work on all variables/all memory accesses, */ 871 /* we assume that these memory fences work on all variables/all memory accesses, */
736 /* not just C11 atomics and atomic accesses */ 872 /* not just C11 atomics and atomic accesses */
737 #include <stdatomic.h> 873 #include <stdatomic.h>
738 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
739 /* any fence other than seq_cst, which isn't very efficient for us. */
740 /* Why that is, we don't know - either the C11 memory model is quite useless */
741 /* for most usages, or gcc and clang have a bug */
742 /* I *currently* lean towards the latter, and inefficiently implement */
743 /* all three of ecb's fences as a seq_cst fence */
744 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
745 /* for all __atomic_thread_fence's except seq_cst */
746 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 874 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
875 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
876 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
747 #endif 877 #endif
748#endif 878#endif
749 879
750#ifndef ECB_MEMORY_FENCE 880#ifndef ECB_MEMORY_FENCE
751 #if !ECB_AVOID_PTHREADS 881 #if !ECB_AVOID_PTHREADS
… …
771 901
772#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 902#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
773 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 903 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
774#endif 904#endif
775 905
906#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
907 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
908#endif
909
776/*****************************************************************************/ 910/*****************************************************************************/
777 911
778#if ECB_CPP 912#if ECB_CPP
779 #define ecb_inline static inline 913 #define ecb_inline static inline
780#elif ECB_GCC_VERSION(2,5) 914#elif ECB_GCC_VERSION(2,5)
… …
844 #define ecb_deprecated __declspec (deprecated) 978 #define ecb_deprecated __declspec (deprecated)
845#else 979#else
846 #define ecb_deprecated ecb_attribute ((__deprecated__)) 980 #define ecb_deprecated ecb_attribute ((__deprecated__))
847#endif 981#endif
848 982
849#if __MSC_VER >= 1500 983#if _MSC_VER >= 1500
850 #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) 984 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
851#elif ECB_GCC_VERSION(4,5) 985#elif ECB_GCC_VERSION(4,5)
852 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) 986 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
853#else 987#else
854 #define ecb_deprecated_message(msg) ecb_deprecated 988 #define ecb_deprecated_message(msg) ecb_deprecated
… …
863#define ecb_unused ecb_attribute ((__unused__)) 997#define ecb_unused ecb_attribute ((__unused__))
864#define ecb_const ecb_attribute ((__const__)) 998#define ecb_const ecb_attribute ((__const__))
865#define ecb_pure ecb_attribute ((__pure__)) 999#define ecb_pure ecb_attribute ((__pure__))
866 1000
867#if ECB_C11 || __IBMC_NORETURN 1001#if ECB_C11 || __IBMC_NORETURN
868 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */ 1002 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
869 #define ecb_noreturn _Noreturn 1003 #define ecb_noreturn _Noreturn
870#elif ECB_CPP11 1004#elif ECB_CPP11
871 #define ecb_noreturn [[noreturn]] 1005 #define ecb_noreturn [[noreturn]]
872#elif _MSC_VER >= 1200 1006#elif _MSC_VER >= 1200
873 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ 1007 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
… …
910#else 1044#else
911 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); 1045 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
912 ecb_function_ ecb_const int 1046 ecb_function_ ecb_const int
913 ecb_ctz32 (uint32_t x) 1047 ecb_ctz32 (uint32_t x)
914 { 1048 {
1049#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1050 unsigned long r;
1051 _BitScanForward (&r, x);
1052 return (int)r;
1053#else
915 int r = 0; 1054 int r = 0;
916 1055
917 x &= ~x + 1; /* this isolates the lowest bit */ 1056 x &= ~x + 1; /* this isolates the lowest bit */
918 1057
919#if ECB_branchless_on_i386 1058#if ECB_branchless_on_i386
… …
929 if (x & 0xff00ff00) r += 8; 1068 if (x & 0xff00ff00) r += 8;
930 if (x & 0xffff0000) r += 16; 1069 if (x & 0xffff0000) r += 16;
931#endif 1070#endif
932 1071
933 return r; 1072 return r;
1073#endif
934 } 1074 }
935 1075
936 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); 1076 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
937 ecb_function_ ecb_const int 1077 ecb_function_ ecb_const int
938 ecb_ctz64 (uint64_t x) 1078 ecb_ctz64 (uint64_t x)
939 { 1079 {
1080#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1081 unsigned long r;
1082 _BitScanForward64 (&r, x);
1083 return (int)r;
1084#else
940 int shift = x & 0xffffffffU ? 0 : 32; 1085 int shift = x & 0xffffffff ? 0 : 32;
941 return ecb_ctz32 (x >> shift) + shift; 1086 return ecb_ctz32 (x >> shift) + shift;
1087#endif
942 } 1088 }
943 1089
944 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); 1090 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
945 ecb_function_ ecb_const int 1091 ecb_function_ ecb_const int
946 ecb_popcount32 (uint32_t x) 1092 ecb_popcount32 (uint32_t x)
… …
954 } 1100 }
955 1101
956 ecb_function_ ecb_const int ecb_ld32 (uint32_t x); 1102 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
957 ecb_function_ ecb_const int ecb_ld32 (uint32_t x) 1103 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
958 { 1104 {
1105#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1106 unsigned long r;
1107 _BitScanReverse (&r, x);
1108 return (int)r;
1109#else
959 int r = 0; 1110 int r = 0;
960 1111
961 if (x >> 16) { x >>= 16; r += 16; } 1112 if (x >> 16) { x >>= 16; r += 16; }
962 if (x >> 8) { x >>= 8; r += 8; } 1113 if (x >> 8) { x >>= 8; r += 8; }
963 if (x >> 4) { x >>= 4; r += 4; } 1114 if (x >> 4) { x >>= 4; r += 4; }
964 if (x >> 2) { x >>= 2; r += 2; } 1115 if (x >> 2) { x >>= 2; r += 2; }
965 if (x >> 1) { r += 1; } 1116 if (x >> 1) { r += 1; }
966 1117
967 return r; 1118 return r;
1119#endif
968 } 1120 }
969 1121
970 ecb_function_ ecb_const int ecb_ld64 (uint64_t x); 1122 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
971 ecb_function_ ecb_const int ecb_ld64 (uint64_t x) 1123 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
972 { 1124 {
1125#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1126 unsigned long r;
1127 _BitScanReverse64 (&r, x);
1128 return (int)r;
1129#else
973 int r = 0; 1130 int r = 0;
974 1131
975 if (x >> 32) { x >>= 32; r += 32; } 1132 if (x >> 32) { x >>= 32; r += 32; }
976 1133
977 return r + ecb_ld32 (x); 1134 return r + ecb_ld32 (x);
1135#endif
978 } 1136 }
979#endif 1137#endif
980 1138
981ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); 1139ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
982ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1140ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
… …
1039ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1197ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1040ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1198ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1041ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1199ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1042 1200
1043#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) 1201#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1202 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1203 #define ecb_bswap16(x) __builtin_bswap16 (x)
1204 #else
1044 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1205 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1206 #endif
1045 #define ecb_bswap32(x) __builtin_bswap32 (x) 1207 #define ecb_bswap32(x) __builtin_bswap32 (x)
1046 #define ecb_bswap64(x) __builtin_bswap64 (x) 1208 #define ecb_bswap64(x) __builtin_bswap64 (x)
1209#elif _MSC_VER
1210 #include <stdlib.h>
1211 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1212 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1213 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
1047#else 1214#else
1048 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); 1215 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1049 ecb_function_ ecb_const uint16_t 1216 ecb_function_ ecb_const uint16_t
1050 ecb_bswap16 (uint16_t x) 1217 ecb_bswap16 (uint16_t x)
1051 { 1218 {
… …
1076#endif 1243#endif
1077 1244
1078/* try to tell the compiler that some condition is definitely true */ 1245/* try to tell the compiler that some condition is definitely true */
1079#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1246#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1080 1247
1081ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); 1248ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1082ecb_inline ecb_const unsigned char 1249ecb_inline ecb_const uint32_t
1083ecb_byteorder_helper (void) 1250ecb_byteorder_helper (void)
1084{ 1251{
1085 /* the union code still generates code under pressure in gcc, */ 1252 /* the union code still generates code under pressure in gcc, */
1086 /* but less than using pointers, and always seems to */ 1253 /* but less than using pointers, and always seems to */
1087 /* successfully return a constant. */ 1254 /* successfully return a constant. */
1088 /* the reason why we have this horrible preprocessor mess */ 1255 /* the reason why we have this horrible preprocessor mess */
1089 /* is to avoid it in all cases, at least on common architectures */ 1256 /* is to avoid it in all cases, at least on common architectures */
1090 /* or when using a recent enough gcc version (>= 4.6) */ 1257 /* or when using a recent enough gcc version (>= 4.6) */
1091#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
1092 return 0x44;
1093#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1258#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1259 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1260 #define ECB_LITTLE_ENDIAN 1
1094 return 0x44; 1261 return 0x44332211;
1095#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1262#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1263 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1264 #define ECB_BIG_ENDIAN 1
1096 return 0x11; 1265 return 0x11223344;
1097#else 1266#else
1098 union 1267 union
1099 { 1268 {
1269 uint8_t c[4];
1100 uint32_t i; 1270 uint32_t u;
1101 uint8_t c;
1102 } u = { 0x11223344 }; 1271 } u = { 0x11, 0x22, 0x33, 0x44 };
1103 return u.c; 1272 return u.u;
1104#endif 1273#endif
1105} 1274}
1106 1275
1107ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1276ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1108ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1277ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1109ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1278ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1110ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1279ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1111 1280
1112#if ECB_GCC_VERSION(3,0) || ECB_C99 1281#if ECB_GCC_VERSION(3,0) || ECB_C99
1113 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1282 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1114#else 1283#else
1115 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1284 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
… …
1139 return N; 1308 return N;
1140 } 1309 }
1141#else 1310#else
1142 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1311 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1143#endif 1312#endif
1313
1314ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1315ecb_function_ ecb_const uint32_t
1316ecb_binary16_to_binary32 (uint32_t x)
1317{
1318 unsigned int s = (x & 0x8000) << (31 - 15);
1319 int e = (x >> 10) & 0x001f;
1320 unsigned int m = x & 0x03ff;
1321
1322 if (ecb_expect_false (e == 31))
1323 /* infinity or NaN */
1324 e = 255 - (127 - 15);
1325 else if (ecb_expect_false (!e))
1326 {
1327 if (ecb_expect_true (!m))
1328 /* zero, handled by code below by forcing e to 0 */
1329 e = 0 - (127 - 15);
1330 else
1331 {
1332 /* subnormal, renormalise */
1333 unsigned int s = 10 - ecb_ld32 (m);
1334
1335 m = (m << s) & 0x3ff; /* mask implicit bit */
1336 e -= s - 1;
1337 }
1338 }
1339
1340 /* e and m now are normalised, or zero, (or inf or nan) */
1341 e += 127 - 15;
1342
1343 return s | (e << 23) | (m << (23 - 10));
1344}
1345
1346ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1347ecb_function_ ecb_const uint16_t
1348ecb_binary32_to_binary16 (uint32_t x)
1349{
1350 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1351 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1352 unsigned int m = x & 0x007fffff;
1353
1354 x &= 0x7fffffff;
1355
1356 /* if it's within range of binary16 normals, use fast path */
1357 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1358 {
1359 /* mantissa round-to-even */
1360 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1361
1362 /* handle overflow */
1363 if (ecb_expect_false (m >= 0x00800000))
1364 {
1365 m >>= 1;
1366 e += 1;
1367 }
1368
1369 return s | (e << 10) | (m >> (23 - 10));
1370 }
1371
1372 /* handle large numbers and infinity */
1373 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1374 return s | 0x7c00;
1375
1376 /* handle zero, subnormals and small numbers */
1377 if (ecb_expect_true (x < 0x38800000))
1378 {
1379 /* zero */
1380 if (ecb_expect_true (!x))
1381 return s;
1382
1383 /* handle subnormals */
1384
1385 /* too small, will be zero */
1386 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1387 return s;
1388
1389 m |= 0x00800000; /* make implicit bit explicit */
1390
1391 /* very tricky - we need to round to the nearest e (+10) bit value */
1392 {
1393 unsigned int bits = 14 - e;
1394 unsigned int half = (1 << (bits - 1)) - 1;
1395 unsigned int even = (m >> bits) & 1;
1396
1397 /* if this overflows, we will end up with a normalised number */
1398 m = (m + half + even) >> bits;
1399 }
1400
1401 return s | m;
1402 }
1403
1404 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1405 m >>= 13;
1406
1407 return s | 0x7c00 | m | !m;
1408}
1144 1409
1145/*******************************************************************************/ 1410/*******************************************************************************/
1146/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1411/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1147 1412
1148/* basically, everything uses "ieee pure-endian" floating point numbers */ 1413/* basically, everything uses "ieee pure-endian" floating point numbers */
… …
1185 #define ECB_NAN ECB_INFINITY 1450 #define ECB_NAN ECB_INFINITY
1186 #endif 1451 #endif
1187 1452
1188 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L 1453 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1189 #define ecb_ldexpf(x,e) ldexpf ((x), (e)) 1454 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1455 #define ecb_frexpf(x,e) frexpf ((x), (e))
1190 #else 1456 #else
1191 #define ecb_ldexpf(x,e) (float) ldexp ((float) (x), (e)) 1457 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1458 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1192 #endif 1459 #endif
1193
1194 /* converts an ieee half/binary16 to a float */
1195 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1196 ecb_function_ ecb_const float
1197 ecb_binary16_to_float (uint16_t x)
1198 {
1199 int e = (x >> 10) & 0x1f;
1200 int m = x & 0x3ff;
1201 float r;
1202
1203 if (!e ) r = ecb_ldexpf (m , -24);
1204 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1205 else if (m ) r = ECB_NAN;
1206 else r = ECB_INFINITY;
1207
1208 return x & 0x8000 ? -r : r;
1209 }
1210 1460
1211 /* convert a float to ieee single/binary32 */ 1461 /* convert a float to ieee single/binary32 */
1212 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); 1462 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1213 ecb_function_ ecb_const uint32_t 1463 ecb_function_ ecb_const uint32_t
1214 ecb_float_to_binary32 (float x) 1464 ecb_float_to_binary32 (float x)
… …
1225 if (x == 0e0f ) return 0x00000000U; 1475 if (x == 0e0f ) return 0x00000000U;
1226 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1476 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1227 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1477 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1228 if (x != x ) return 0x7fbfffffU; 1478 if (x != x ) return 0x7fbfffffU;
1229 1479
1230 m = frexpf (x, &e) * 0x1000000U; 1480 m = ecb_frexpf (x, &e) * 0x1000000U;
1231 1481
1232 r = m & 0x80000000U; 1482 r = m & 0x80000000U;
1233 1483
1234 if (r) 1484 if (r)
1235 m = -m; 1485 m = -m;
… …
1346 #endif 1596 #endif
1347 1597
1348 return r; 1598 return r;
1349 } 1599 }
1350 1600
1601 /* convert a float to ieee half/binary16 */
1602 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1603 ecb_function_ ecb_const uint16_t
1604 ecb_float_to_binary16 (float x)
1605 {
1606 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1607 }
1608
1609 /* convert an ieee half/binary16 to float */
1610 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1611 ecb_function_ ecb_const float
1612 ecb_binary16_to_float (uint16_t x)
1613 {
1614 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1615 }
1616
1351#endif 1617#endif
1352 1618
1353#endif 1619#endif
1354 1620
1355/* ECB.H END */ 1621/* ECB.H END */
1356 1622
1357#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1623#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1358/* if your architecture doesn't need memory fences, e.g. because it is 1624/* if your architecture doesn't need memory fences, e.g. because it is
1359 * single-cpu/core, or if you use libev in a project that doesn't use libev 1625 * single-cpu/core, or if you use libev in a project that doesn't use libev
1360 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1626 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1361 * libev, in which cases the memory fences become nops. 1627 * libev, in which cases the memory fences become nops.
1362 * alternatively, you can remove this #error and link against libpthread, 1628 * alternatively, you can remove this #error and link against libpthread,
1363 * which will then provide the memory fences. 1629 * which will then provide the memory fences.
1364 */ 1630 */
1365# error "memory fences not defined for your architecture, please report" 1631# error "memory fences not defined for your architecture, please report"
… …
1369# define ECB_MEMORY_FENCE do { } while (0) 1635# define ECB_MEMORY_FENCE do { } while (0)
1370# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1636# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1371# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1637# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1372#endif 1638#endif
1373 1639
1374#define expect_false(cond) ecb_expect_false (cond)
1375#define expect_true(cond) ecb_expect_true (cond)
1376#define noinline ecb_noinline
1377
1378#define inline_size ecb_inline 1640#define inline_size ecb_inline
1379 1641
1380#if EV_FEATURE_CODE 1642#if EV_FEATURE_CODE
1381# define inline_speed ecb_inline 1643# define inline_speed ecb_inline
1382#else 1644#else
1383# define inline_speed static noinline 1645# define inline_speed ecb_noinline static
1384#endif 1646#endif
1385 1647
1386#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1648#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1387 1649
1388#if EV_MINPRI == EV_MAXPRI 1650#if EV_MINPRI == EV_MAXPRI
1389# define ABSPRI(w) (((W)w), 0) 1651# define ABSPRI(w) (((W)w), 0)
1390#else 1652#else
1391# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1653# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1392#endif 1654#endif
1393 1655
1394#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1656#define EMPTY /* required for microsofts broken pseudo-c compiler */
1395#define EMPTY2(a,b) /* used to suppress some warnings */
1396 1657
1397typedef ev_watcher *W; 1658typedef ev_watcher *W;
1398typedef ev_watcher_list *WL; 1659typedef ev_watcher_list *WL;
1399typedef ev_watcher_time *WT; 1660typedef ev_watcher_time *WT;
1400 1661
… …
1425# include "ev_win32.c" 1686# include "ev_win32.c"
1426#endif 1687#endif
1427 1688
1428/*****************************************************************************/ 1689/*****************************************************************************/
1429 1690
1691#if EV_USE_LINUXAIO
1692# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1693#endif
1694
1430/* define a suitable floor function (only used by periodics atm) */ 1695/* define a suitable floor function (only used by periodics atm) */
1431 1696
1432#if EV_USE_FLOOR 1697#if EV_USE_FLOOR
1433# include <math.h> 1698# include <math.h>
1434# define ev_floor(v) floor (v) 1699# define ev_floor(v) floor (v)
1435#else 1700#else
1436 1701
1437#include <float.h> 1702#include <float.h>
1438 1703
1439/* a floor() replacement function, should be independent of ev_tstamp type */ 1704/* a floor() replacement function, should be independent of ev_tstamp type */
1705ecb_noinline
1440static ev_tstamp noinline 1706static ev_tstamp
1441ev_floor (ev_tstamp v) 1707ev_floor (ev_tstamp v)
1442{ 1708{
1443 /* the choice of shift factor is not terribly important */ 1709 /* the choice of shift factor is not terribly important */
1444#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1710#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1445 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1711 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1446#else 1712#else
1447 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1713 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1448#endif 1714#endif
1449 1715
1450 /* argument too large for an unsigned long? */ 1716 /* argument too large for an unsigned long? */
1451 if (expect_false (v >= shift)) 1717 if (ecb_expect_false (v >= shift))
1452 { 1718 {
1453 ev_tstamp f; 1719 ev_tstamp f;
1454 1720
1455 if (v == v - 1.) 1721 if (v == v - 1.)
1456 return v; /* very large number */ 1722 return v; /* very large number */
… …
1458 f = shift * ev_floor (v * (1. / shift)); 1724 f = shift * ev_floor (v * (1. / shift));
1459 return f + ev_floor (v - f); 1725 return f + ev_floor (v - f);
1460 } 1726 }
1461 1727
1462 /* special treatment for negative args? */ 1728 /* special treatment for negative args? */
1463 if (expect_false (v < 0.)) 1729 if (ecb_expect_false (v < 0.))
1464 { 1730 {
1465 ev_tstamp f = -ev_floor (-v); 1731 ev_tstamp f = -ev_floor (-v);
1466 1732
1467 return f - (f == v ? 0 : 1); 1733 return f - (f == v ? 0 : 1);
1468 } 1734 }
… …
1477 1743
1478#ifdef __linux 1744#ifdef __linux
1479# include <sys/utsname.h> 1745# include <sys/utsname.h>
1480#endif 1746#endif
1481 1747
1482static unsigned int noinline ecb_cold 1748ecb_noinline ecb_cold
1749static unsigned int
1483ev_linux_version (void) 1750ev_linux_version (void)
1484{ 1751{
1485#ifdef __linux 1752#ifdef __linux
1486 unsigned int v = 0; 1753 unsigned int v = 0;
1487 struct utsname buf; 1754 struct utsname buf;
… …
1516} 1783}
1517 1784
1518/*****************************************************************************/ 1785/*****************************************************************************/
1519 1786
1520#if EV_AVOID_STDIO 1787#if EV_AVOID_STDIO
1521static void noinline ecb_cold 1788ecb_noinline ecb_cold
1789static void
1522ev_printerr (const char *msg) 1790ev_printerr (const char *msg)
1523{ 1791{
1524 write (STDERR_FILENO, msg, strlen (msg)); 1792 write (STDERR_FILENO, msg, strlen (msg));
1525} 1793}
1526#endif 1794#endif
1527 1795
1528static void (*syserr_cb)(const char *msg) EV_THROW; 1796static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1529 1797
1530void ecb_cold 1798ecb_cold
1799void
1531ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1800ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1532{ 1801{
1533 syserr_cb = cb; 1802 syserr_cb = cb;
1534} 1803}
1535 1804
1536static void noinline ecb_cold 1805ecb_noinline ecb_cold
1806static void
1537ev_syserr (const char *msg) 1807ev_syserr (const char *msg)
1538{ 1808{
1539 if (!msg) 1809 if (!msg)
1540 msg = "(libev) system error"; 1810 msg = "(libev) system error";
1541 1811
… …
1554 abort (); 1824 abort ();
1555 } 1825 }
1556} 1826}
1557 1827
1558static void * 1828static void *
1559ev_realloc_emul (void *ptr, long size) EV_THROW 1829ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1560{ 1830{
1561 /* some systems, notably openbsd and darwin, fail to properly 1831 /* some systems, notably openbsd and darwin, fail to properly
1562 * implement realloc (x, 0) (as required by both ansi c-89 and 1832 * implement realloc (x, 0) (as required by both ansi c-89 and
1563 * the single unix specification, so work around them here. 1833 * the single unix specification, so work around them here.
1564 * recently, also (at least) fedora and debian started breaking it, 1834 * recently, also (at least) fedora and debian started breaking it,
… …
1570 1840
1571 free (ptr); 1841 free (ptr);
1572 return 0; 1842 return 0;
1573} 1843}
1574 1844
1575static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1845static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1576 1846
1577void ecb_cold 1847ecb_cold
1848void
1578ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1849ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1579{ 1850{
1580 alloc = cb; 1851 alloc = cb;
1581} 1852}
1582 1853
1583inline_speed void * 1854inline_speed void *
… …
1610typedef struct 1881typedef struct
1611{ 1882{
1612 WL head; 1883 WL head;
1613 unsigned char events; /* the events watched for */ 1884 unsigned char events; /* the events watched for */
1614 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1885 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1615 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1886 unsigned char emask; /* some backends store the actual kernel mask in here */
1616 unsigned char unused; 1887 unsigned char unused;
1617#if EV_USE_EPOLL 1888#if EV_USE_EPOLL
1618 unsigned int egen; /* generation counter to counter epoll bugs */ 1889 unsigned int egen; /* generation counter to counter epoll bugs */
1619#endif 1890#endif
1620#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1891#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1685 static int ev_default_loop_ptr; 1956 static int ev_default_loop_ptr;
1686 1957
1687#endif 1958#endif
1688 1959
1689#if EV_FEATURE_API 1960#if EV_FEATURE_API
1690# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1961# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1691# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1962# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1692# define EV_INVOKE_PENDING invoke_cb (EV_A) 1963# define EV_INVOKE_PENDING invoke_cb (EV_A)
1693#else 1964#else
1694# define EV_RELEASE_CB (void)0 1965# define EV_RELEASE_CB (void)0
1695# define EV_ACQUIRE_CB (void)0 1966# define EV_ACQUIRE_CB (void)0
1696# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1967# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1700 1971
1701/*****************************************************************************/ 1972/*****************************************************************************/
1702 1973
1703#ifndef EV_HAVE_EV_TIME 1974#ifndef EV_HAVE_EV_TIME
1704ev_tstamp 1975ev_tstamp
1705ev_time (void) EV_THROW 1976ev_time (void) EV_NOEXCEPT
1706{ 1977{
1707#if EV_USE_REALTIME 1978#if EV_USE_REALTIME
1708 if (expect_true (have_realtime)) 1979 if (ecb_expect_true (have_realtime))
1709 { 1980 {
1710 struct timespec ts; 1981 struct timespec ts;
1711 clock_gettime (CLOCK_REALTIME, &ts); 1982 clock_gettime (CLOCK_REALTIME, &ts);
1712 return ts.tv_sec + ts.tv_nsec * 1e-9; 1983 return ts.tv_sec + ts.tv_nsec * 1e-9;
1713 } 1984 }
… …
1721 1992
1722inline_size ev_tstamp 1993inline_size ev_tstamp
1723get_clock (void) 1994get_clock (void)
1724{ 1995{
1725#if EV_USE_MONOTONIC 1996#if EV_USE_MONOTONIC
1726 if (expect_true (have_monotonic)) 1997 if (ecb_expect_true (have_monotonic))
1727 { 1998 {
1728 struct timespec ts; 1999 struct timespec ts;
1729 clock_gettime (CLOCK_MONOTONIC, &ts); 2000 clock_gettime (CLOCK_MONOTONIC, &ts);
1730 return ts.tv_sec + ts.tv_nsec * 1e-9; 2001 return ts.tv_sec + ts.tv_nsec * 1e-9;
1731 } 2002 }
… …
1734 return ev_time (); 2005 return ev_time ();
1735} 2006}
1736 2007
1737#if EV_MULTIPLICITY 2008#if EV_MULTIPLICITY
1738ev_tstamp 2009ev_tstamp
1739ev_now (EV_P) EV_THROW 2010ev_now (EV_P) EV_NOEXCEPT
1740{ 2011{
1741 return ev_rt_now; 2012 return ev_rt_now;
1742} 2013}
1743#endif 2014#endif
1744 2015
1745void 2016void
1746ev_sleep (ev_tstamp delay) EV_THROW 2017ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1747{ 2018{
1748 if (delay > 0.) 2019 if (delay > 0.)
1749 { 2020 {
1750#if EV_USE_NANOSLEEP 2021#if EV_USE_NANOSLEEP
1751 struct timespec ts; 2022 struct timespec ts;
1752 2023
1753 EV_TS_SET (ts, delay); 2024 EV_TS_SET (ts, delay);
1754 nanosleep (&ts, 0); 2025 nanosleep (&ts, 0);
1755#elif defined _WIN32 2026#elif defined _WIN32
2027 /* maybe this should round up, as ms is very low resolution */
2028 /* compared to select (µs) or nanosleep (ns) */
1756 Sleep ((unsigned long)(delay * 1e3)); 2029 Sleep ((unsigned long)(delay * 1e3));
1757#else 2030#else
1758 struct timeval tv; 2031 struct timeval tv;
1759 2032
1760 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2033 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1791 } 2064 }
1792 2065
1793 return ncur; 2066 return ncur;
1794} 2067}
1795 2068
1796static void * noinline ecb_cold 2069ecb_noinline ecb_cold
2070static void *
1797array_realloc (int elem, void *base, int *cur, int cnt) 2071array_realloc (int elem, void *base, int *cur, int cnt)
1798{ 2072{
1799 *cur = array_nextsize (elem, *cur, cnt); 2073 *cur = array_nextsize (elem, *cur, cnt);
1800 return ev_realloc (base, elem * *cur); 2074 return ev_realloc (base, elem * *cur);
1801} 2075}
1802 2076
2077#define array_needsize_noinit(base,offset,count)
2078
1803#define array_init_zero(base,count) \ 2079#define array_needsize_zerofill(base,offset,count) \
1804 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2080 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1805 2081
1806#define array_needsize(type,base,cur,cnt,init) \ 2082#define array_needsize(type,base,cur,cnt,init) \
1807 if (expect_false ((cnt) > (cur))) \ 2083 if (ecb_expect_false ((cnt) > (cur))) \
1808 { \ 2084 { \
1809 int ecb_unused ocur_ = (cur); \ 2085 ecb_unused int ocur_ = (cur); \
1810 (base) = (type *)array_realloc \ 2086 (base) = (type *)array_realloc \
1811 (sizeof (type), (base), &(cur), (cnt)); \ 2087 (sizeof (type), (base), &(cur), (cnt)); \
1812 init ((base) + (ocur_), (cur) - ocur_); \ 2088 init ((base), ocur_, ((cur) - ocur_)); \
1813 } 2089 }
1814 2090
1815#if 0 2091#if 0
1816#define array_slim(type,stem) \ 2092#define array_slim(type,stem) \
1817 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2093 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1826 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2102 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1827 2103
1828/*****************************************************************************/ 2104/*****************************************************************************/
1829 2105
1830/* dummy callback for pending events */ 2106/* dummy callback for pending events */
1831static void noinline 2107ecb_noinline
2108static void
1832pendingcb (EV_P_ ev_prepare *w, int revents) 2109pendingcb (EV_P_ ev_prepare *w, int revents)
1833{ 2110{
1834} 2111}
1835 2112
1836void noinline 2113ecb_noinline
2114void
1837ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2115ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1838{ 2116{
1839 W w_ = (W)w; 2117 W w_ = (W)w;
1840 int pri = ABSPRI (w_); 2118 int pri = ABSPRI (w_);
1841 2119
1842 if (expect_false (w_->pending)) 2120 if (ecb_expect_false (w_->pending))
1843 pendings [pri][w_->pending - 1].events |= revents; 2121 pendings [pri][w_->pending - 1].events |= revents;
1844 else 2122 else
1845 { 2123 {
1846 w_->pending = ++pendingcnt [pri]; 2124 w_->pending = ++pendingcnt [pri];
1847 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2125 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1848 pendings [pri][w_->pending - 1].w = w_; 2126 pendings [pri][w_->pending - 1].w = w_;
1849 pendings [pri][w_->pending - 1].events = revents; 2127 pendings [pri][w_->pending - 1].events = revents;
1850 } 2128 }
1851 2129
1852 pendingpri = NUMPRI - 1; 2130 pendingpri = NUMPRI - 1;
1853} 2131}
1854 2132
1855inline_speed void 2133inline_speed void
1856feed_reverse (EV_P_ W w) 2134feed_reverse (EV_P_ W w)
1857{ 2135{
1858 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2136 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1859 rfeeds [rfeedcnt++] = w; 2137 rfeeds [rfeedcnt++] = w;
1860} 2138}
1861 2139
1862inline_size void 2140inline_size void
1863feed_reverse_done (EV_P_ int revents) 2141feed_reverse_done (EV_P_ int revents)
… …
1898inline_speed void 2176inline_speed void
1899fd_event (EV_P_ int fd, int revents) 2177fd_event (EV_P_ int fd, int revents)
1900{ 2178{
1901 ANFD *anfd = anfds + fd; 2179 ANFD *anfd = anfds + fd;
1902 2180
1903 if (expect_true (!anfd->reify)) 2181 if (ecb_expect_true (!anfd->reify))
1904 fd_event_nocheck (EV_A_ fd, revents); 2182 fd_event_nocheck (EV_A_ fd, revents);
1905} 2183}
1906 2184
1907void 2185void
1908ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2186ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1909{ 2187{
1910 if (fd >= 0 && fd < anfdmax) 2188 if (fd >= 0 && fd < anfdmax)
1911 fd_event_nocheck (EV_A_ fd, revents); 2189 fd_event_nocheck (EV_A_ fd, revents);
1912} 2190}
1913 2191
… …
1950 ev_io *w; 2228 ev_io *w;
1951 2229
1952 unsigned char o_events = anfd->events; 2230 unsigned char o_events = anfd->events;
1953 unsigned char o_reify = anfd->reify; 2231 unsigned char o_reify = anfd->reify;
1954 2232
1955 anfd->reify = 0; 2233 anfd->reify = 0;
1956 2234
1957 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2235 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1958 { 2236 {
1959 anfd->events = 0; 2237 anfd->events = 0;
1960 2238
1961 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2239 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1962 anfd->events |= (unsigned char)w->events; 2240 anfd->events |= (unsigned char)w->events;
… …
1971 2249
1972 fdchangecnt = 0; 2250 fdchangecnt = 0;
1973} 2251}
1974 2252
1975/* something about the given fd changed */ 2253/* something about the given fd changed */
1976inline_size void 2254inline_size
2255void
1977fd_change (EV_P_ int fd, int flags) 2256fd_change (EV_P_ int fd, int flags)
1978{ 2257{
1979 unsigned char reify = anfds [fd].reify; 2258 unsigned char reify = anfds [fd].reify;
1980 anfds [fd].reify |= flags; 2259 anfds [fd].reify |= flags;
1981 2260
1982 if (expect_true (!reify)) 2261 if (ecb_expect_true (!reify))
1983 { 2262 {
1984 ++fdchangecnt; 2263 ++fdchangecnt;
1985 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2264 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1986 fdchanges [fdchangecnt - 1] = fd; 2265 fdchanges [fdchangecnt - 1] = fd;
1987 } 2266 }
1988} 2267}
1989 2268
1990/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2269/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1991inline_speed void ecb_cold 2270inline_speed ecb_cold void
1992fd_kill (EV_P_ int fd) 2271fd_kill (EV_P_ int fd)
1993{ 2272{
1994 ev_io *w; 2273 ev_io *w;
1995 2274
1996 while ((w = (ev_io *)anfds [fd].head)) 2275 while ((w = (ev_io *)anfds [fd].head))
… …
1999 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2278 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
2000 } 2279 }
2001} 2280}
2002 2281
2003/* check whether the given fd is actually valid, for error recovery */ 2282/* check whether the given fd is actually valid, for error recovery */
2004inline_size int ecb_cold 2283inline_size ecb_cold int
2005fd_valid (int fd) 2284fd_valid (int fd)
2006{ 2285{
2007#ifdef _WIN32 2286#ifdef _WIN32
2008 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2287 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
2009#else 2288#else
2010 return fcntl (fd, F_GETFD) != -1; 2289 return fcntl (fd, F_GETFD) != -1;
2011#endif 2290#endif
2012} 2291}
2013 2292
2014/* called on EBADF to verify fds */ 2293/* called on EBADF to verify fds */
2015static void noinline ecb_cold 2294ecb_noinline ecb_cold
2295static void
2016fd_ebadf (EV_P) 2296fd_ebadf (EV_P)
2017{ 2297{
2018 int fd; 2298 int fd;
2019 2299
2020 for (fd = 0; fd < anfdmax; ++fd) 2300 for (fd = 0; fd < anfdmax; ++fd)
… …
2022 if (!fd_valid (fd) && errno == EBADF) 2302 if (!fd_valid (fd) && errno == EBADF)
2023 fd_kill (EV_A_ fd); 2303 fd_kill (EV_A_ fd);
2024} 2304}
2025 2305
2026/* called on ENOMEM in select/poll to kill some fds and retry */ 2306/* called on ENOMEM in select/poll to kill some fds and retry */
2027static void noinline ecb_cold 2307ecb_noinline ecb_cold
2308static void
2028fd_enomem (EV_P) 2309fd_enomem (EV_P)
2029{ 2310{
2030 int fd; 2311 int fd;
2031 2312
2032 for (fd = anfdmax; fd--; ) 2313 for (fd = anfdmax; fd--; )
… …
2036 break; 2317 break;
2037 } 2318 }
2038} 2319}
2039 2320
2040/* usually called after fork if backend needs to re-arm all fds from scratch */ 2321/* usually called after fork if backend needs to re-arm all fds from scratch */
2041static void noinline 2322ecb_noinline
2323static void
2042fd_rearm_all (EV_P) 2324fd_rearm_all (EV_P)
2043{ 2325{
2044 int fd; 2326 int fd;
2045 2327
2046 for (fd = 0; fd < anfdmax; ++fd) 2328 for (fd = 0; fd < anfdmax; ++fd)
… …
2099 ev_tstamp minat; 2381 ev_tstamp minat;
2100 ANHE *minpos; 2382 ANHE *minpos;
2101 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2383 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2102 2384
2103 /* find minimum child */ 2385 /* find minimum child */
2104 if (expect_true (pos + DHEAP - 1 < E)) 2386 if (ecb_expect_true (pos + DHEAP - 1 < E))
2105 { 2387 {
2106 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2388 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2107 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2389 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2108 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2390 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2109 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2391 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
… …
2227 2509
2228/*****************************************************************************/ 2510/*****************************************************************************/
2229 2511
2230#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2512#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2231 2513
2232static void noinline ecb_cold 2514ecb_noinline ecb_cold
2515static void
2233evpipe_init (EV_P) 2516evpipe_init (EV_P)
2234{ 2517{
2235 if (!ev_is_active (&pipe_w)) 2518 if (!ev_is_active (&pipe_w))
2236 { 2519 {
2237 int fds [2]; 2520 int fds [2];
… …
2277inline_speed void 2560inline_speed void
2278evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2561evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2279{ 2562{
2280 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2563 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2281 2564
2282 if (expect_true (*flag)) 2565 if (ecb_expect_true (*flag))
2283 return; 2566 return;
2284 2567
2285 *flag = 1; 2568 *flag = 1;
2286 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2569 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2287 2570
… …
2308#endif 2591#endif
2309 { 2592 {
2310#ifdef _WIN32 2593#ifdef _WIN32
2311 WSABUF buf; 2594 WSABUF buf;
2312 DWORD sent; 2595 DWORD sent;
2313 buf.buf = &buf; 2596 buf.buf = (char *)&buf;
2314 buf.len = 1; 2597 buf.len = 1;
2315 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2598 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2316#else 2599#else
2317 write (evpipe [1], &(evpipe [1]), 1); 2600 write (evpipe [1], &(evpipe [1]), 1);
2318#endif 2601#endif
… …
2364 sig_pending = 0; 2647 sig_pending = 0;
2365 2648
2366 ECB_MEMORY_FENCE; 2649 ECB_MEMORY_FENCE;
2367 2650
2368 for (i = EV_NSIG - 1; i--; ) 2651 for (i = EV_NSIG - 1; i--; )
2369 if (expect_false (signals [i].pending)) 2652 if (ecb_expect_false (signals [i].pending))
2370 ev_feed_signal_event (EV_A_ i + 1); 2653 ev_feed_signal_event (EV_A_ i + 1);
2371 } 2654 }
2372#endif 2655#endif
2373 2656
2374#if EV_ASYNC_ENABLE 2657#if EV_ASYNC_ENABLE
… …
2390} 2673}
2391 2674
2392/*****************************************************************************/ 2675/*****************************************************************************/
2393 2676
2394void 2677void
2395ev_feed_signal (int signum) EV_THROW 2678ev_feed_signal (int signum) EV_NOEXCEPT
2396{ 2679{
2397#if EV_MULTIPLICITY 2680#if EV_MULTIPLICITY
2398 EV_P; 2681 EV_P;
2399 ECB_MEMORY_FENCE_ACQUIRE; 2682 ECB_MEMORY_FENCE_ACQUIRE;
2400 EV_A = signals [signum - 1].loop; 2683 EV_A = signals [signum - 1].loop;
… …
2415#endif 2698#endif
2416 2699
2417 ev_feed_signal (signum); 2700 ev_feed_signal (signum);
2418} 2701}
2419 2702
2420void noinline 2703ecb_noinline
2704void
2421ev_feed_signal_event (EV_P_ int signum) EV_THROW 2705ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2422{ 2706{
2423 WL w; 2707 WL w;
2424 2708
2425 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2709 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2426 return; 2710 return;
2427 2711
2428 --signum; 2712 --signum;
2429 2713
2430#if EV_MULTIPLICITY 2714#if EV_MULTIPLICITY
2431 /* it is permissible to try to feed a signal to the wrong loop */ 2715 /* it is permissible to try to feed a signal to the wrong loop */
2432 /* or, likely more useful, feeding a signal nobody is waiting for */ 2716 /* or, likely more useful, feeding a signal nobody is waiting for */
2433 2717
2434 if (expect_false (signals [signum].loop != EV_A)) 2718 if (ecb_expect_false (signals [signum].loop != EV_A))
2435 return; 2719 return;
2436#endif 2720#endif
2437 2721
2438 signals [signum].pending = 0; 2722 signals [signum].pending = 0;
2439 ECB_MEMORY_FENCE_RELEASE; 2723 ECB_MEMORY_FENCE_RELEASE;
… …
2535# include "ev_kqueue.c" 2819# include "ev_kqueue.c"
2536#endif 2820#endif
2537#if EV_USE_EPOLL 2821#if EV_USE_EPOLL
2538# include "ev_epoll.c" 2822# include "ev_epoll.c"
2539#endif 2823#endif
2824#if EV_USE_LINUXAIO
2825# include "ev_linuxaio.c"
2826#endif
2827#if EV_USE_IOURING
2828# include "ev_iouring.c"
2829#endif
2540#if EV_USE_POLL 2830#if EV_USE_POLL
2541# include "ev_poll.c" 2831# include "ev_poll.c"
2542#endif 2832#endif
2543#if EV_USE_SELECT 2833#if EV_USE_SELECT
2544# include "ev_select.c" 2834# include "ev_select.c"
2545#endif 2835#endif
2546 2836
2547int ecb_cold 2837ecb_cold int
2548ev_version_major (void) EV_THROW 2838ev_version_major (void) EV_NOEXCEPT
2549{ 2839{
2550 return EV_VERSION_MAJOR; 2840 return EV_VERSION_MAJOR;
2551} 2841}
2552 2842
2553int ecb_cold 2843ecb_cold int
2554ev_version_minor (void) EV_THROW 2844ev_version_minor (void) EV_NOEXCEPT
2555{ 2845{
2556 return EV_VERSION_MINOR; 2846 return EV_VERSION_MINOR;
2557} 2847}
2558 2848
2559/* return true if we are running with elevated privileges and should ignore env variables */ 2849/* return true if we are running with elevated privileges and should ignore env variables */
2560int inline_size ecb_cold 2850inline_size ecb_cold int
2561enable_secure (void) 2851enable_secure (void)
2562{ 2852{
2563#ifdef _WIN32 2853#ifdef _WIN32
2564 return 0; 2854 return 0;
2565#else 2855#else
2566 return getuid () != geteuid () 2856 return getuid () != geteuid ()
2567 || getgid () != getegid (); 2857 || getgid () != getegid ();
2568#endif 2858#endif
2569} 2859}
2570 2860
2571unsigned int ecb_cold 2861ecb_cold
2862unsigned int
2572ev_supported_backends (void) EV_THROW 2863ev_supported_backends (void) EV_NOEXCEPT
2573{ 2864{
2574 unsigned int flags = 0; 2865 unsigned int flags = 0;
2575 2866
2576 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2867 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2577 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2868 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2578 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2869 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2870 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2871 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2579 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2872 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2580 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2873 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2581 2874
2582 return flags; 2875 return flags;
2583} 2876}
2584 2877
2585unsigned int ecb_cold 2878ecb_cold
2879unsigned int
2586ev_recommended_backends (void) EV_THROW 2880ev_recommended_backends (void) EV_NOEXCEPT
2587{ 2881{
2588 unsigned int flags = ev_supported_backends (); 2882 unsigned int flags = ev_supported_backends ();
2589 2883
2590#ifndef __NetBSD__ 2884#ifndef __NetBSD__
2591 /* kqueue is borked on everything but netbsd apparently */ 2885 /* kqueue is borked on everything but netbsd apparently */
… …
2599#endif 2893#endif
2600#ifdef __FreeBSD__ 2894#ifdef __FreeBSD__
2601 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2895 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2602#endif 2896#endif
2603 2897
2898 /* TODO: linuxaio is very experimental */
2899#if !EV_RECOMMEND_LINUXAIO
2900 flags &= ~EVBACKEND_LINUXAIO;
2901#endif
2902 /* TODO: linuxaio is super experimental */
2903#if !EV_RECOMMEND_IOURING
2904 flags &= ~EVBACKEND_IOURING;
2905#endif
2906
2604 return flags; 2907 return flags;
2605} 2908}
2606 2909
2607unsigned int ecb_cold 2910ecb_cold
2911unsigned int
2608ev_embeddable_backends (void) EV_THROW 2912ev_embeddable_backends (void) EV_NOEXCEPT
2609{ 2913{
2610 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2914 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2611 2915
2612 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2916 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2613 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2917 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2615 2919
2616 return flags; 2920 return flags;
2617} 2921}
2618 2922
2619unsigned int 2923unsigned int
2620ev_backend (EV_P) EV_THROW 2924ev_backend (EV_P) EV_NOEXCEPT
2621{ 2925{
2622 return backend; 2926 return backend;
2623} 2927}
2624 2928
2625#if EV_FEATURE_API 2929#if EV_FEATURE_API
2626unsigned int 2930unsigned int
2627ev_iteration (EV_P) EV_THROW 2931ev_iteration (EV_P) EV_NOEXCEPT
2628{ 2932{
2629 return loop_count; 2933 return loop_count;
2630} 2934}
2631 2935
2632unsigned int 2936unsigned int
2633ev_depth (EV_P) EV_THROW 2937ev_depth (EV_P) EV_NOEXCEPT
2634{ 2938{
2635 return loop_depth; 2939 return loop_depth;
2636} 2940}
2637 2941
2638void 2942void
2639ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2943ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2640{ 2944{
2641 io_blocktime = interval; 2945 io_blocktime = interval;
2642} 2946}
2643 2947
2644void 2948void
2645ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2949ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2646{ 2950{
2647 timeout_blocktime = interval; 2951 timeout_blocktime = interval;
2648} 2952}
2649 2953
2650void 2954void
2651ev_set_userdata (EV_P_ void *data) EV_THROW 2955ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2652{ 2956{
2653 userdata = data; 2957 userdata = data;
2654} 2958}
2655 2959
2656void * 2960void *
2657ev_userdata (EV_P) EV_THROW 2961ev_userdata (EV_P) EV_NOEXCEPT
2658{ 2962{
2659 return userdata; 2963 return userdata;
2660} 2964}
2661 2965
2662void 2966void
2663ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2967ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2664{ 2968{
2665 invoke_cb = invoke_pending_cb; 2969 invoke_cb = invoke_pending_cb;
2666} 2970}
2667 2971
2668void 2972void
2669ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2973ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2670{ 2974{
2671 release_cb = release; 2975 release_cb = release;
2672 acquire_cb = acquire; 2976 acquire_cb = acquire;
2673} 2977}
2674#endif 2978#endif
2675 2979
2676/* initialise a loop structure, must be zero-initialised */ 2980/* initialise a loop structure, must be zero-initialised */
2677static void noinline ecb_cold 2981ecb_noinline ecb_cold
2982static void
2678loop_init (EV_P_ unsigned int flags) EV_THROW 2983loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2679{ 2984{
2680 if (!backend) 2985 if (!backend)
2681 { 2986 {
2682 origflags = flags; 2987 origflags = flags;
2683 2988
… …
2741 3046
2742 if (!(flags & EVBACKEND_MASK)) 3047 if (!(flags & EVBACKEND_MASK))
2743 flags |= ev_recommended_backends (); 3048 flags |= ev_recommended_backends ();
2744 3049
2745#if EV_USE_IOCP 3050#if EV_USE_IOCP
2746 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3051 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2747#endif 3052#endif
2748#if EV_USE_PORT 3053#if EV_USE_PORT
2749 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3054 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2750#endif 3055#endif
2751#if EV_USE_KQUEUE 3056#if EV_USE_KQUEUE
2752 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3057 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3058#endif
3059#if EV_USE_IOURING
3060 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3061#endif
3062#if EV_USE_LINUXAIO
3063 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2753#endif 3064#endif
2754#if EV_USE_EPOLL 3065#if EV_USE_EPOLL
2755 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3066 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2756#endif 3067#endif
2757#if EV_USE_POLL 3068#if EV_USE_POLL
2758 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3069 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2759#endif 3070#endif
2760#if EV_USE_SELECT 3071#if EV_USE_SELECT
2761 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3072 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2762#endif 3073#endif
2763 3074
2764 ev_prepare_init (&pending_w, pendingcb); 3075 ev_prepare_init (&pending_w, pendingcb);
2765 3076
2766#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3077#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2769#endif 3080#endif
2770 } 3081 }
2771} 3082}
2772 3083
2773/* free up a loop structure */ 3084/* free up a loop structure */
2774void ecb_cold 3085ecb_cold
3086void
2775ev_loop_destroy (EV_P) 3087ev_loop_destroy (EV_P)
2776{ 3088{
2777 int i; 3089 int i;
2778 3090
2779#if EV_MULTIPLICITY 3091#if EV_MULTIPLICITY
… …
2782 return; 3094 return;
2783#endif 3095#endif
2784 3096
2785#if EV_CLEANUP_ENABLE 3097#if EV_CLEANUP_ENABLE
2786 /* queue cleanup watchers (and execute them) */ 3098 /* queue cleanup watchers (and execute them) */
2787 if (expect_false (cleanupcnt)) 3099 if (ecb_expect_false (cleanupcnt))
2788 { 3100 {
2789 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3101 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2790 EV_INVOKE_PENDING; 3102 EV_INVOKE_PENDING;
2791 } 3103 }
2792#endif 3104#endif
… …
2820 3132
2821 if (backend_fd >= 0) 3133 if (backend_fd >= 0)
2822 close (backend_fd); 3134 close (backend_fd);
2823 3135
2824#if EV_USE_IOCP 3136#if EV_USE_IOCP
2825 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3137 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2826#endif 3138#endif
2827#if EV_USE_PORT 3139#if EV_USE_PORT
2828 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3140 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2829#endif 3141#endif
2830#if EV_USE_KQUEUE 3142#if EV_USE_KQUEUE
2831 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3143 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3144#endif
3145#if EV_USE_IOURING
3146 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3147#endif
3148#if EV_USE_LINUXAIO
3149 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2832#endif 3150#endif
2833#if EV_USE_EPOLL 3151#if EV_USE_EPOLL
2834 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3152 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2835#endif 3153#endif
2836#if EV_USE_POLL 3154#if EV_USE_POLL
2837 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3155 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2838#endif 3156#endif
2839#if EV_USE_SELECT 3157#if EV_USE_SELECT
2840 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3158 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2841#endif 3159#endif
2842 3160
2843 for (i = NUMPRI; i--; ) 3161 for (i = NUMPRI; i--; )
2844 { 3162 {
2845 array_free (pending, [i]); 3163 array_free (pending, [i]);
… …
2887 3205
2888inline_size void 3206inline_size void
2889loop_fork (EV_P) 3207loop_fork (EV_P)
2890{ 3208{
2891#if EV_USE_PORT 3209#if EV_USE_PORT
2892 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3210 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2893#endif 3211#endif
2894#if EV_USE_KQUEUE 3212#if EV_USE_KQUEUE
2895 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3213 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3214#endif
3215#if EV_USE_IOURING
3216 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3217#endif
3218#if EV_USE_LINUXAIO
3219 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2896#endif 3220#endif
2897#if EV_USE_EPOLL 3221#if EV_USE_EPOLL
2898 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3222 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2899#endif 3223#endif
2900#if EV_USE_INOTIFY 3224#if EV_USE_INOTIFY
2901 infy_fork (EV_A); 3225 infy_fork (EV_A);
2902#endif 3226#endif
2903 3227
2904#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3228#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2905 if (ev_is_active (&pipe_w)) 3229 if (ev_is_active (&pipe_w) && postfork != 2)
2906 { 3230 {
2907 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3231 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2908 3232
2909 ev_ref (EV_A); 3233 ev_ref (EV_A);
2910 ev_io_stop (EV_A_ &pipe_w); 3234 ev_io_stop (EV_A_ &pipe_w);
… …
2921 postfork = 0; 3245 postfork = 0;
2922} 3246}
2923 3247
2924#if EV_MULTIPLICITY 3248#if EV_MULTIPLICITY
2925 3249
3250ecb_cold
2926struct ev_loop * ecb_cold 3251struct ev_loop *
2927ev_loop_new (unsigned int flags) EV_THROW 3252ev_loop_new (unsigned int flags) EV_NOEXCEPT
2928{ 3253{
2929 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3254 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2930 3255
2931 memset (EV_A, 0, sizeof (struct ev_loop)); 3256 memset (EV_A, 0, sizeof (struct ev_loop));
2932 loop_init (EV_A_ flags); 3257 loop_init (EV_A_ flags);
… …
2939} 3264}
2940 3265
2941#endif /* multiplicity */ 3266#endif /* multiplicity */
2942 3267
2943#if EV_VERIFY 3268#if EV_VERIFY
2944static void noinline ecb_cold 3269ecb_noinline ecb_cold
3270static void
2945verify_watcher (EV_P_ W w) 3271verify_watcher (EV_P_ W w)
2946{ 3272{
2947 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3273 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2948 3274
2949 if (w->pending) 3275 if (w->pending)
2950 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3276 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2951} 3277}
2952 3278
2953static void noinline ecb_cold 3279ecb_noinline ecb_cold
3280static void
2954verify_heap (EV_P_ ANHE *heap, int N) 3281verify_heap (EV_P_ ANHE *heap, int N)
2955{ 3282{
2956 int i; 3283 int i;
2957 3284
2958 for (i = HEAP0; i < N + HEAP0; ++i) 3285 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2963 3290
2964 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3291 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2965 } 3292 }
2966} 3293}
2967 3294
2968static void noinline ecb_cold 3295ecb_noinline ecb_cold
3296static void
2969array_verify (EV_P_ W *ws, int cnt) 3297array_verify (EV_P_ W *ws, int cnt)
2970{ 3298{
2971 while (cnt--) 3299 while (cnt--)
2972 { 3300 {
2973 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3301 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2976} 3304}
2977#endif 3305#endif
2978 3306
2979#if EV_FEATURE_API 3307#if EV_FEATURE_API
2980void ecb_cold 3308void ecb_cold
2981ev_verify (EV_P) EV_THROW 3309ev_verify (EV_P) EV_NOEXCEPT
2982{ 3310{
2983#if EV_VERIFY 3311#if EV_VERIFY
2984 int i; 3312 int i;
2985 WL w, w2; 3313 WL w, w2;
2986 3314
… …
3062#endif 3390#endif
3063} 3391}
3064#endif 3392#endif
3065 3393
3066#if EV_MULTIPLICITY 3394#if EV_MULTIPLICITY
3395ecb_cold
3067struct ev_loop * ecb_cold 3396struct ev_loop *
3068#else 3397#else
3069int 3398int
3070#endif 3399#endif
3071ev_default_loop (unsigned int flags) EV_THROW 3400ev_default_loop (unsigned int flags) EV_NOEXCEPT
3072{ 3401{
3073 if (!ev_default_loop_ptr) 3402 if (!ev_default_loop_ptr)
3074 { 3403 {
3075#if EV_MULTIPLICITY 3404#if EV_MULTIPLICITY
3076 EV_P = ev_default_loop_ptr = &default_loop_struct; 3405 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3095 3424
3096 return ev_default_loop_ptr; 3425 return ev_default_loop_ptr;
3097} 3426}
3098 3427
3099void 3428void
3100ev_loop_fork (EV_P) EV_THROW 3429ev_loop_fork (EV_P) EV_NOEXCEPT
3101{ 3430{
3102 postfork = 1; 3431 postfork = 1;
3103} 3432}
3104 3433
3105/*****************************************************************************/ 3434/*****************************************************************************/
… …
3109{ 3438{
3110 EV_CB_INVOKE ((W)w, revents); 3439 EV_CB_INVOKE ((W)w, revents);
3111} 3440}
3112 3441
3113unsigned int 3442unsigned int
3114ev_pending_count (EV_P) EV_THROW 3443ev_pending_count (EV_P) EV_NOEXCEPT
3115{ 3444{
3116 int pri; 3445 int pri;
3117 unsigned int count = 0; 3446 unsigned int count = 0;
3118 3447
3119 for (pri = NUMPRI; pri--; ) 3448 for (pri = NUMPRI; pri--; )
3120 count += pendingcnt [pri]; 3449 count += pendingcnt [pri];
3121 3450
3122 return count; 3451 return count;
3123} 3452}
3124 3453
3125void noinline 3454ecb_noinline
3455void
3126ev_invoke_pending (EV_P) 3456ev_invoke_pending (EV_P)
3127{ 3457{
3128 pendingpri = NUMPRI; 3458 pendingpri = NUMPRI;
3129 3459
3130 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3460 do
3131 { 3461 {
3132 --pendingpri; 3462 --pendingpri;
3133 3463
3464 /* pendingpri possibly gets modified in the inner loop */
3134 while (pendingcnt [pendingpri]) 3465 while (pendingcnt [pendingpri])
3135 { 3466 {
3136 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3467 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3137 3468
3138 p->w->pending = 0; 3469 p->w->pending = 0;
3139 EV_CB_INVOKE (p->w, p->events); 3470 EV_CB_INVOKE (p->w, p->events);
3140 EV_FREQUENT_CHECK; 3471 EV_FREQUENT_CHECK;
3141 } 3472 }
3142 } 3473 }
3474 while (pendingpri);
3143} 3475}
3144 3476
3145#if EV_IDLE_ENABLE 3477#if EV_IDLE_ENABLE
3146/* make idle watchers pending. this handles the "call-idle */ 3478/* make idle watchers pending. this handles the "call-idle */
3147/* only when higher priorities are idle" logic */ 3479/* only when higher priorities are idle" logic */
3148inline_size void 3480inline_size void
3149idle_reify (EV_P) 3481idle_reify (EV_P)
3150{ 3482{
3151 if (expect_false (idleall)) 3483 if (ecb_expect_false (idleall))
3152 { 3484 {
3153 int pri; 3485 int pri;
3154 3486
3155 for (pri = NUMPRI; pri--; ) 3487 for (pri = NUMPRI; pri--; )
3156 { 3488 {
… …
3205 } 3537 }
3206} 3538}
3207 3539
3208#if EV_PERIODIC_ENABLE 3540#if EV_PERIODIC_ENABLE
3209 3541
3210static void noinline 3542ecb_noinline
3543static void
3211periodic_recalc (EV_P_ ev_periodic *w) 3544periodic_recalc (EV_P_ ev_periodic *w)
3212{ 3545{
3213 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3546 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3214 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3547 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3215 3548
… …
3217 while (at <= ev_rt_now) 3550 while (at <= ev_rt_now)
3218 { 3551 {
3219 ev_tstamp nat = at + w->interval; 3552 ev_tstamp nat = at + w->interval;
3220 3553
3221 /* when resolution fails us, we use ev_rt_now */ 3554 /* when resolution fails us, we use ev_rt_now */
3222 if (expect_false (nat == at)) 3555 if (ecb_expect_false (nat == at))
3223 { 3556 {
3224 at = ev_rt_now; 3557 at = ev_rt_now;
3225 break; 3558 break;
3226 } 3559 }
3227 3560
… …
3273 } 3606 }
3274} 3607}
3275 3608
3276/* simply recalculate all periodics */ 3609/* simply recalculate all periodics */
3277/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3610/* TODO: maybe ensure that at least one event happens when jumping forward? */
3278static void noinline ecb_cold 3611ecb_noinline ecb_cold
3612static void
3279periodics_reschedule (EV_P) 3613periodics_reschedule (EV_P)
3280{ 3614{
3281 int i; 3615 int i;
3282 3616
3283 /* adjust periodics after time jump */ 3617 /* adjust periodics after time jump */
… …
3296 reheap (periodics, periodiccnt); 3630 reheap (periodics, periodiccnt);
3297} 3631}
3298#endif 3632#endif
3299 3633
3300/* adjust all timers by a given offset */ 3634/* adjust all timers by a given offset */
3301static void noinline ecb_cold 3635ecb_noinline ecb_cold
3636static void
3302timers_reschedule (EV_P_ ev_tstamp adjust) 3637timers_reschedule (EV_P_ ev_tstamp adjust)
3303{ 3638{
3304 int i; 3639 int i;
3305 3640
3306 for (i = 0; i < timercnt; ++i) 3641 for (i = 0; i < timercnt; ++i)
… …
3315/* also detect if there was a timejump, and act accordingly */ 3650/* also detect if there was a timejump, and act accordingly */
3316inline_speed void 3651inline_speed void
3317time_update (EV_P_ ev_tstamp max_block) 3652time_update (EV_P_ ev_tstamp max_block)
3318{ 3653{
3319#if EV_USE_MONOTONIC 3654#if EV_USE_MONOTONIC
3320 if (expect_true (have_monotonic)) 3655 if (ecb_expect_true (have_monotonic))
3321 { 3656 {
3322 int i; 3657 int i;
3323 ev_tstamp odiff = rtmn_diff; 3658 ev_tstamp odiff = rtmn_diff;
3324 3659
3325 mn_now = get_clock (); 3660 mn_now = get_clock ();
3326 3661
3327 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3662 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3328 /* interpolate in the meantime */ 3663 /* interpolate in the meantime */
3329 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3664 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3330 { 3665 {
3331 ev_rt_now = rtmn_diff + mn_now; 3666 ev_rt_now = rtmn_diff + mn_now;
3332 return; 3667 return;
3333 } 3668 }
3334 3669
… …
3348 ev_tstamp diff; 3683 ev_tstamp diff;
3349 rtmn_diff = ev_rt_now - mn_now; 3684 rtmn_diff = ev_rt_now - mn_now;
3350 3685
3351 diff = odiff - rtmn_diff; 3686 diff = odiff - rtmn_diff;
3352 3687
3353 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3688 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3354 return; /* all is well */ 3689 return; /* all is well */
3355 3690
3356 ev_rt_now = ev_time (); 3691 ev_rt_now = ev_time ();
3357 mn_now = get_clock (); 3692 mn_now = get_clock ();
3358 now_floor = mn_now; 3693 now_floor = mn_now;
… …
3367 else 3702 else
3368#endif 3703#endif
3369 { 3704 {
3370 ev_rt_now = ev_time (); 3705 ev_rt_now = ev_time ();
3371 3706
3372 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3707 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3373 { 3708 {
3374 /* adjust timers. this is easy, as the offset is the same for all of them */ 3709 /* adjust timers. this is easy, as the offset is the same for all of them */
3375 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3710 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3376#if EV_PERIODIC_ENABLE 3711#if EV_PERIODIC_ENABLE
3377 periodics_reschedule (EV_A); 3712 periodics_reschedule (EV_A);
… …
3400#if EV_VERIFY >= 2 3735#if EV_VERIFY >= 2
3401 ev_verify (EV_A); 3736 ev_verify (EV_A);
3402#endif 3737#endif
3403 3738
3404#ifndef _WIN32 3739#ifndef _WIN32
3405 if (expect_false (curpid)) /* penalise the forking check even more */ 3740 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3406 if (expect_false (getpid () != curpid)) 3741 if (ecb_expect_false (getpid () != curpid))
3407 { 3742 {
3408 curpid = getpid (); 3743 curpid = getpid ();
3409 postfork = 1; 3744 postfork = 1;
3410 } 3745 }
3411#endif 3746#endif
3412 3747
3413#if EV_FORK_ENABLE 3748#if EV_FORK_ENABLE
3414 /* we might have forked, so queue fork handlers */ 3749 /* we might have forked, so queue fork handlers */
3415 if (expect_false (postfork)) 3750 if (ecb_expect_false (postfork))
3416 if (forkcnt) 3751 if (forkcnt)
3417 { 3752 {
3418 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3753 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3419 EV_INVOKE_PENDING; 3754 EV_INVOKE_PENDING;
3420 } 3755 }
3421#endif 3756#endif
3422 3757
3423#if EV_PREPARE_ENABLE 3758#if EV_PREPARE_ENABLE
3424 /* queue prepare watchers (and execute them) */ 3759 /* queue prepare watchers (and execute them) */
3425 if (expect_false (preparecnt)) 3760 if (ecb_expect_false (preparecnt))
3426 { 3761 {
3427 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3762 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3428 EV_INVOKE_PENDING; 3763 EV_INVOKE_PENDING;
3429 } 3764 }
3430#endif 3765#endif
3431 3766
3432 if (expect_false (loop_done)) 3767 if (ecb_expect_false (loop_done))
3433 break; 3768 break;
3434 3769
3435 /* we might have forked, so reify kernel state if necessary */ 3770 /* we might have forked, so reify kernel state if necessary */
3436 if (expect_false (postfork)) 3771 if (ecb_expect_false (postfork))
3437 loop_fork (EV_A); 3772 loop_fork (EV_A);
3438 3773
3439 /* update fd-related kernel structures */ 3774 /* update fd-related kernel structures */
3440 fd_reify (EV_A); 3775 fd_reify (EV_A);
3441 3776
… …
3453 /* from now on, we want a pipe-wake-up */ 3788 /* from now on, we want a pipe-wake-up */
3454 pipe_write_wanted = 1; 3789 pipe_write_wanted = 1;
3455 3790
3456 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3791 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3457 3792
3458 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3793 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3459 { 3794 {
3460 waittime = MAX_BLOCKTIME; 3795 waittime = MAX_BLOCKTIME;
3461 3796
3462 if (timercnt) 3797 if (timercnt)
3463 { 3798 {
… …
3472 if (waittime > to) waittime = to; 3807 if (waittime > to) waittime = to;
3473 } 3808 }
3474#endif 3809#endif
3475 3810
3476 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3811 /* don't let timeouts decrease the waittime below timeout_blocktime */
3477 if (expect_false (waittime < timeout_blocktime)) 3812 if (ecb_expect_false (waittime < timeout_blocktime))
3478 waittime = timeout_blocktime; 3813 waittime = timeout_blocktime;
3479 3814
3480 /* at this point, we NEED to wait, so we have to ensure */ 3815 /* at this point, we NEED to wait, so we have to ensure */
3481 /* to pass a minimum nonzero value to the backend */ 3816 /* to pass a minimum nonzero value to the backend */
3482 if (expect_false (waittime < backend_mintime)) 3817 if (ecb_expect_false (waittime < backend_mintime))
3483 waittime = backend_mintime; 3818 waittime = backend_mintime;
3484 3819
3485 /* extra check because io_blocktime is commonly 0 */ 3820 /* extra check because io_blocktime is commonly 0 */
3486 if (expect_false (io_blocktime)) 3821 if (ecb_expect_false (io_blocktime))
3487 { 3822 {
3488 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3823 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3489 3824
3490 if (sleeptime > waittime - backend_mintime) 3825 if (sleeptime > waittime - backend_mintime)
3491 sleeptime = waittime - backend_mintime; 3826 sleeptime = waittime - backend_mintime;
3492 3827
3493 if (expect_true (sleeptime > 0.)) 3828 if (ecb_expect_true (sleeptime > 0.))
3494 { 3829 {
3495 ev_sleep (sleeptime); 3830 ev_sleep (sleeptime);
3496 waittime -= sleeptime; 3831 waittime -= sleeptime;
3497 } 3832 }
3498 } 3833 }
… …
3512 { 3847 {
3513 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3848 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3514 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3849 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3515 } 3850 }
3516 3851
3517
3518 /* update ev_rt_now, do magic */ 3852 /* update ev_rt_now, do magic */
3519 time_update (EV_A_ waittime + sleeptime); 3853 time_update (EV_A_ waittime + sleeptime);
3520 } 3854 }
3521 3855
3522 /* queue pending timers and reschedule them */ 3856 /* queue pending timers and reschedule them */
… …
3530 idle_reify (EV_A); 3864 idle_reify (EV_A);
3531#endif 3865#endif
3532 3866
3533#if EV_CHECK_ENABLE 3867#if EV_CHECK_ENABLE
3534 /* queue check watchers, to be executed first */ 3868 /* queue check watchers, to be executed first */
3535 if (expect_false (checkcnt)) 3869 if (ecb_expect_false (checkcnt))
3536 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3870 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3537#endif 3871#endif
3538 3872
3539 EV_INVOKE_PENDING; 3873 EV_INVOKE_PENDING;
3540 } 3874 }
3541 while (expect_true ( 3875 while (ecb_expect_true (
3542 activecnt 3876 activecnt
3543 && !loop_done 3877 && !loop_done
3544 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3878 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3545 )); 3879 ));
3546 3880
… …
3553 3887
3554 return activecnt; 3888 return activecnt;
3555} 3889}
3556 3890
3557void 3891void
3558ev_break (EV_P_ int how) EV_THROW 3892ev_break (EV_P_ int how) EV_NOEXCEPT
3559{ 3893{
3560 loop_done = how; 3894 loop_done = how;
3561} 3895}
3562 3896
3563void 3897void
3564ev_ref (EV_P) EV_THROW 3898ev_ref (EV_P) EV_NOEXCEPT
3565{ 3899{
3566 ++activecnt; 3900 ++activecnt;
3567} 3901}
3568 3902
3569void 3903void
3570ev_unref (EV_P) EV_THROW 3904ev_unref (EV_P) EV_NOEXCEPT
3571{ 3905{
3572 --activecnt; 3906 --activecnt;
3573} 3907}
3574 3908
3575void 3909void
3576ev_now_update (EV_P) EV_THROW 3910ev_now_update (EV_P) EV_NOEXCEPT
3577{ 3911{
3578 time_update (EV_A_ 1e100); 3912 time_update (EV_A_ 1e100);
3579} 3913}
3580 3914
3581void 3915void
3582ev_suspend (EV_P) EV_THROW 3916ev_suspend (EV_P) EV_NOEXCEPT
3583{ 3917{
3584 ev_now_update (EV_A); 3918 ev_now_update (EV_A);
3585} 3919}
3586 3920
3587void 3921void
3588ev_resume (EV_P) EV_THROW 3922ev_resume (EV_P) EV_NOEXCEPT
3589{ 3923{
3590 ev_tstamp mn_prev = mn_now; 3924 ev_tstamp mn_prev = mn_now;
3591 3925
3592 ev_now_update (EV_A); 3926 ev_now_update (EV_A);
3593 timers_reschedule (EV_A_ mn_now - mn_prev); 3927 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3610inline_size void 3944inline_size void
3611wlist_del (WL *head, WL elem) 3945wlist_del (WL *head, WL elem)
3612{ 3946{
3613 while (*head) 3947 while (*head)
3614 { 3948 {
3615 if (expect_true (*head == elem)) 3949 if (ecb_expect_true (*head == elem))
3616 { 3950 {
3617 *head = elem->next; 3951 *head = elem->next;
3618 break; 3952 break;
3619 } 3953 }
3620 3954
… …
3632 w->pending = 0; 3966 w->pending = 0;
3633 } 3967 }
3634} 3968}
3635 3969
3636int 3970int
3637ev_clear_pending (EV_P_ void *w) EV_THROW 3971ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3638{ 3972{
3639 W w_ = (W)w; 3973 W w_ = (W)w;
3640 int pending = w_->pending; 3974 int pending = w_->pending;
3641 3975
3642 if (expect_true (pending)) 3976 if (ecb_expect_true (pending))
3643 { 3977 {
3644 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 3978 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3645 p->w = (W)&pending_w; 3979 p->w = (W)&pending_w;
3646 w_->pending = 0; 3980 w_->pending = 0;
3647 return p->events; 3981 return p->events;
… …
3674 w->active = 0; 4008 w->active = 0;
3675} 4009}
3676 4010
3677/*****************************************************************************/ 4011/*****************************************************************************/
3678 4012
3679void noinline 4013ecb_noinline
4014void
3680ev_io_start (EV_P_ ev_io *w) EV_THROW 4015ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3681{ 4016{
3682 int fd = w->fd; 4017 int fd = w->fd;
3683 4018
3684 if (expect_false (ev_is_active (w))) 4019 if (ecb_expect_false (ev_is_active (w)))
3685 return; 4020 return;
3686 4021
3687 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4022 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3688 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4023 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3689 4024
4025#if EV_VERIFY >= 2
4026 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4027#endif
3690 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
3691 4029
3692 ev_start (EV_A_ (W)w, 1); 4030 ev_start (EV_A_ (W)w, 1);
3693 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4031 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3694 wlist_add (&anfds[fd].head, (WL)w); 4032 wlist_add (&anfds[fd].head, (WL)w);
3695 4033
3696 /* common bug, apparently */ 4034 /* common bug, apparently */
3697 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4035 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3698 4036
… …
3700 w->events &= ~EV__IOFDSET; 4038 w->events &= ~EV__IOFDSET;
3701 4039
3702 EV_FREQUENT_CHECK; 4040 EV_FREQUENT_CHECK;
3703} 4041}
3704 4042
3705void noinline 4043ecb_noinline
4044void
3706ev_io_stop (EV_P_ ev_io *w) EV_THROW 4045ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3707{ 4046{
3708 clear_pending (EV_A_ (W)w); 4047 clear_pending (EV_A_ (W)w);
3709 if (expect_false (!ev_is_active (w))) 4048 if (ecb_expect_false (!ev_is_active (w)))
3710 return; 4049 return;
3711 4050
3712 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4051 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3713 4052
4053#if EV_VERIFY >= 2
4054 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4055#endif
3714 EV_FREQUENT_CHECK; 4056 EV_FREQUENT_CHECK;
3715 4057
3716 wlist_del (&anfds[w->fd].head, (WL)w); 4058 wlist_del (&anfds[w->fd].head, (WL)w);
3717 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
3718 4060
3719 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4061 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3720 4062
3721 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3722} 4064}
3723 4065
3724void noinline 4066ecb_noinline
4067void
3725ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4068ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3726{ 4069{
3727 if (expect_false (ev_is_active (w))) 4070 if (ecb_expect_false (ev_is_active (w)))
3728 return; 4071 return;
3729 4072
3730 ev_at (w) += mn_now; 4073 ev_at (w) += mn_now;
3731 4074
3732 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4075 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3733 4076
3734 EV_FREQUENT_CHECK; 4077 EV_FREQUENT_CHECK;
3735 4078
3736 ++timercnt; 4079 ++timercnt;
3737 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4080 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3738 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4081 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3739 ANHE_w (timers [ev_active (w)]) = (WT)w; 4082 ANHE_w (timers [ev_active (w)]) = (WT)w;
3740 ANHE_at_cache (timers [ev_active (w)]); 4083 ANHE_at_cache (timers [ev_active (w)]);
3741 upheap (timers, ev_active (w)); 4084 upheap (timers, ev_active (w));
3742 4085
3743 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
3744 4087
3745 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4088 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3746} 4089}
3747 4090
3748void noinline 4091ecb_noinline
4092void
3749ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4093ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3750{ 4094{
3751 clear_pending (EV_A_ (W)w); 4095 clear_pending (EV_A_ (W)w);
3752 if (expect_false (!ev_is_active (w))) 4096 if (ecb_expect_false (!ev_is_active (w)))
3753 return; 4097 return;
3754 4098
3755 EV_FREQUENT_CHECK; 4099 EV_FREQUENT_CHECK;
3756 4100
3757 { 4101 {
… …
3759 4103
3760 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4104 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3761 4105
3762 --timercnt; 4106 --timercnt;
3763 4107
3764 if (expect_true (active < timercnt + HEAP0)) 4108 if (ecb_expect_true (active < timercnt + HEAP0))
3765 { 4109 {
3766 timers [active] = timers [timercnt + HEAP0]; 4110 timers [active] = timers [timercnt + HEAP0];
3767 adjustheap (timers, timercnt, active); 4111 adjustheap (timers, timercnt, active);
3768 } 4112 }
3769 } 4113 }
… …
3773 ev_stop (EV_A_ (W)w); 4117 ev_stop (EV_A_ (W)w);
3774 4118
3775 EV_FREQUENT_CHECK; 4119 EV_FREQUENT_CHECK;
3776} 4120}
3777 4121
3778void noinline 4122ecb_noinline
4123void
3779ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4124ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3780{ 4125{
3781 EV_FREQUENT_CHECK; 4126 EV_FREQUENT_CHECK;
3782 4127
3783 clear_pending (EV_A_ (W)w); 4128 clear_pending (EV_A_ (W)w);
3784 4129
… …
3801 4146
3802 EV_FREQUENT_CHECK; 4147 EV_FREQUENT_CHECK;
3803} 4148}
3804 4149
3805ev_tstamp 4150ev_tstamp
3806ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4151ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3807{ 4152{
3808 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4153 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3809} 4154}
3810 4155
3811#if EV_PERIODIC_ENABLE 4156#if EV_PERIODIC_ENABLE
3812void noinline 4157ecb_noinline
4158void
3813ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4159ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3814{ 4160{
3815 if (expect_false (ev_is_active (w))) 4161 if (ecb_expect_false (ev_is_active (w)))
3816 return; 4162 return;
3817 4163
3818 if (w->reschedule_cb) 4164 if (w->reschedule_cb)
3819 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4165 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3820 else if (w->interval) 4166 else if (w->interval)
… …
3827 4173
3828 EV_FREQUENT_CHECK; 4174 EV_FREQUENT_CHECK;
3829 4175
3830 ++periodiccnt; 4176 ++periodiccnt;
3831 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4177 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3832 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4178 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3833 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4179 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3834 ANHE_at_cache (periodics [ev_active (w)]); 4180 ANHE_at_cache (periodics [ev_active (w)]);
3835 upheap (periodics, ev_active (w)); 4181 upheap (periodics, ev_active (w));
3836 4182
3837 EV_FREQUENT_CHECK; 4183 EV_FREQUENT_CHECK;
3838 4184
3839 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4185 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3840} 4186}
3841 4187
3842void noinline 4188ecb_noinline
4189void
3843ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4190ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3844{ 4191{
3845 clear_pending (EV_A_ (W)w); 4192 clear_pending (EV_A_ (W)w);
3846 if (expect_false (!ev_is_active (w))) 4193 if (ecb_expect_false (!ev_is_active (w)))
3847 return; 4194 return;
3848 4195
3849 EV_FREQUENT_CHECK; 4196 EV_FREQUENT_CHECK;
3850 4197
3851 { 4198 {
… …
3853 4200
3854 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4201 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3855 4202
3856 --periodiccnt; 4203 --periodiccnt;
3857 4204
3858 if (expect_true (active < periodiccnt + HEAP0)) 4205 if (ecb_expect_true (active < periodiccnt + HEAP0))
3859 { 4206 {
3860 periodics [active] = periodics [periodiccnt + HEAP0]; 4207 periodics [active] = periodics [periodiccnt + HEAP0];
3861 adjustheap (periodics, periodiccnt, active); 4208 adjustheap (periodics, periodiccnt, active);
3862 } 4209 }
3863 } 4210 }
… …
3865 ev_stop (EV_A_ (W)w); 4212 ev_stop (EV_A_ (W)w);
3866 4213
3867 EV_FREQUENT_CHECK; 4214 EV_FREQUENT_CHECK;
3868} 4215}
3869 4216
3870void noinline 4217ecb_noinline
4218void
3871ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4219ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3872{ 4220{
3873 /* TODO: use adjustheap and recalculation */ 4221 /* TODO: use adjustheap and recalculation */
3874 ev_periodic_stop (EV_A_ w); 4222 ev_periodic_stop (EV_A_ w);
3875 ev_periodic_start (EV_A_ w); 4223 ev_periodic_start (EV_A_ w);
3876} 4224}
… …
3880# define SA_RESTART 0 4228# define SA_RESTART 0
3881#endif 4229#endif
3882 4230
3883#if EV_SIGNAL_ENABLE 4231#if EV_SIGNAL_ENABLE
3884 4232
3885void noinline 4233ecb_noinline
4234void
3886ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4235ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3887{ 4236{
3888 if (expect_false (ev_is_active (w))) 4237 if (ecb_expect_false (ev_is_active (w)))
3889 return; 4238 return;
3890 4239
3891 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4240 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3892 4241
3893#if EV_MULTIPLICITY 4242#if EV_MULTIPLICITY
… …
3962 } 4311 }
3963 4312
3964 EV_FREQUENT_CHECK; 4313 EV_FREQUENT_CHECK;
3965} 4314}
3966 4315
3967void noinline 4316ecb_noinline
4317void
3968ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4318ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3969{ 4319{
3970 clear_pending (EV_A_ (W)w); 4320 clear_pending (EV_A_ (W)w);
3971 if (expect_false (!ev_is_active (w))) 4321 if (ecb_expect_false (!ev_is_active (w)))
3972 return; 4322 return;
3973 4323
3974 EV_FREQUENT_CHECK; 4324 EV_FREQUENT_CHECK;
3975 4325
3976 wlist_del (&signals [w->signum - 1].head, (WL)w); 4326 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4004#endif 4354#endif
4005 4355
4006#if EV_CHILD_ENABLE 4356#if EV_CHILD_ENABLE
4007 4357
4008void 4358void
4009ev_child_start (EV_P_ ev_child *w) EV_THROW 4359ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4010{ 4360{
4011#if EV_MULTIPLICITY 4361#if EV_MULTIPLICITY
4012 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4362 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4013#endif 4363#endif
4014 if (expect_false (ev_is_active (w))) 4364 if (ecb_expect_false (ev_is_active (w)))
4015 return; 4365 return;
4016 4366
4017 EV_FREQUENT_CHECK; 4367 EV_FREQUENT_CHECK;
4018 4368
4019 ev_start (EV_A_ (W)w, 1); 4369 ev_start (EV_A_ (W)w, 1);
… …
4021 4371
4022 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
4023} 4373}
4024 4374
4025void 4375void
4026ev_child_stop (EV_P_ ev_child *w) EV_THROW 4376ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4027{ 4377{
4028 clear_pending (EV_A_ (W)w); 4378 clear_pending (EV_A_ (W)w);
4029 if (expect_false (!ev_is_active (w))) 4379 if (ecb_expect_false (!ev_is_active (w)))
4030 return; 4380 return;
4031 4381
4032 EV_FREQUENT_CHECK; 4382 EV_FREQUENT_CHECK;
4033 4383
4034 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4384 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4048 4398
4049#define DEF_STAT_INTERVAL 5.0074891 4399#define DEF_STAT_INTERVAL 5.0074891
4050#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4400#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4051#define MIN_STAT_INTERVAL 0.1074891 4401#define MIN_STAT_INTERVAL 0.1074891
4052 4402
4053static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4403ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4054 4404
4055#if EV_USE_INOTIFY 4405#if EV_USE_INOTIFY
4056 4406
4057/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4407/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4058# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4408# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4059 4409
4060static void noinline 4410ecb_noinline
4411static void
4061infy_add (EV_P_ ev_stat *w) 4412infy_add (EV_P_ ev_stat *w)
4062{ 4413{
4063 w->wd = inotify_add_watch (fs_fd, w->path, 4414 w->wd = inotify_add_watch (fs_fd, w->path,
4064 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4415 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4065 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4416 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4129 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4480 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4130 ev_timer_again (EV_A_ &w->timer); 4481 ev_timer_again (EV_A_ &w->timer);
4131 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4482 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4132} 4483}
4133 4484
4134static void noinline 4485ecb_noinline
4486static void
4135infy_del (EV_P_ ev_stat *w) 4487infy_del (EV_P_ ev_stat *w)
4136{ 4488{
4137 int slot; 4489 int slot;
4138 int wd = w->wd; 4490 int wd = w->wd;
4139 4491
… …
4146 4498
4147 /* remove this watcher, if others are watching it, they will rearm */ 4499 /* remove this watcher, if others are watching it, they will rearm */
4148 inotify_rm_watch (fs_fd, wd); 4500 inotify_rm_watch (fs_fd, wd);
4149} 4501}
4150 4502
4151static void noinline 4503ecb_noinline
4504static void
4152infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4505infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4153{ 4506{
4154 if (slot < 0) 4507 if (slot < 0)
4155 /* overflow, need to check for all hash slots */ 4508 /* overflow, need to check for all hash slots */
4156 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4509 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4192 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4545 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4193 ofs += sizeof (struct inotify_event) + ev->len; 4546 ofs += sizeof (struct inotify_event) + ev->len;
4194 } 4547 }
4195} 4548}
4196 4549
4197inline_size void ecb_cold 4550inline_size ecb_cold
4551void
4198ev_check_2625 (EV_P) 4552ev_check_2625 (EV_P)
4199{ 4553{
4200 /* kernels < 2.6.25 are borked 4554 /* kernels < 2.6.25 are borked
4201 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4555 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4202 */ 4556 */
… …
4292#else 4646#else
4293# define EV_LSTAT(p,b) lstat (p, b) 4647# define EV_LSTAT(p,b) lstat (p, b)
4294#endif 4648#endif
4295 4649
4296void 4650void
4297ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4651ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4298{ 4652{
4299 if (lstat (w->path, &w->attr) < 0) 4653 if (lstat (w->path, &w->attr) < 0)
4300 w->attr.st_nlink = 0; 4654 w->attr.st_nlink = 0;
4301 else if (!w->attr.st_nlink) 4655 else if (!w->attr.st_nlink)
4302 w->attr.st_nlink = 1; 4656 w->attr.st_nlink = 1;
4303} 4657}
4304 4658
4305static void noinline 4659ecb_noinline
4660static void
4306stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4661stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4307{ 4662{
4308 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4663 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4309 4664
4310 ev_statdata prev = w->attr; 4665 ev_statdata prev = w->attr;
… …
4341 ev_feed_event (EV_A_ w, EV_STAT); 4696 ev_feed_event (EV_A_ w, EV_STAT);
4342 } 4697 }
4343} 4698}
4344 4699
4345void 4700void
4346ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4701ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4347{ 4702{
4348 if (expect_false (ev_is_active (w))) 4703 if (ecb_expect_false (ev_is_active (w)))
4349 return; 4704 return;
4350 4705
4351 ev_stat_stat (EV_A_ w); 4706 ev_stat_stat (EV_A_ w);
4352 4707
4353 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4708 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4372 4727
4373 EV_FREQUENT_CHECK; 4728 EV_FREQUENT_CHECK;
4374} 4729}
4375 4730
4376void 4731void
4377ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4732ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4378{ 4733{
4379 clear_pending (EV_A_ (W)w); 4734 clear_pending (EV_A_ (W)w);
4380 if (expect_false (!ev_is_active (w))) 4735 if (ecb_expect_false (!ev_is_active (w)))
4381 return; 4736 return;
4382 4737
4383 EV_FREQUENT_CHECK; 4738 EV_FREQUENT_CHECK;
4384 4739
4385#if EV_USE_INOTIFY 4740#if EV_USE_INOTIFY
… …
4398} 4753}
4399#endif 4754#endif
4400 4755
4401#if EV_IDLE_ENABLE 4756#if EV_IDLE_ENABLE
4402void 4757void
4403ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4758ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4404{ 4759{
4405 if (expect_false (ev_is_active (w))) 4760 if (ecb_expect_false (ev_is_active (w)))
4406 return; 4761 return;
4407 4762
4408 pri_adjust (EV_A_ (W)w); 4763 pri_adjust (EV_A_ (W)w);
4409 4764
4410 EV_FREQUENT_CHECK; 4765 EV_FREQUENT_CHECK;
… …
4413 int active = ++idlecnt [ABSPRI (w)]; 4768 int active = ++idlecnt [ABSPRI (w)];
4414 4769
4415 ++idleall; 4770 ++idleall;
4416 ev_start (EV_A_ (W)w, active); 4771 ev_start (EV_A_ (W)w, active);
4417 4772
4418 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4773 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4419 idles [ABSPRI (w)][active - 1] = w; 4774 idles [ABSPRI (w)][active - 1] = w;
4420 } 4775 }
4421 4776
4422 EV_FREQUENT_CHECK; 4777 EV_FREQUENT_CHECK;
4423} 4778}
4424 4779
4425void 4780void
4426ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4781ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4427{ 4782{
4428 clear_pending (EV_A_ (W)w); 4783 clear_pending (EV_A_ (W)w);
4429 if (expect_false (!ev_is_active (w))) 4784 if (ecb_expect_false (!ev_is_active (w)))
4430 return; 4785 return;
4431 4786
4432 EV_FREQUENT_CHECK; 4787 EV_FREQUENT_CHECK;
4433 4788
4434 { 4789 {
… …
4445} 4800}
4446#endif 4801#endif
4447 4802
4448#if EV_PREPARE_ENABLE 4803#if EV_PREPARE_ENABLE
4449void 4804void
4450ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4805ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4451{ 4806{
4452 if (expect_false (ev_is_active (w))) 4807 if (ecb_expect_false (ev_is_active (w)))
4453 return; 4808 return;
4454 4809
4455 EV_FREQUENT_CHECK; 4810 EV_FREQUENT_CHECK;
4456 4811
4457 ev_start (EV_A_ (W)w, ++preparecnt); 4812 ev_start (EV_A_ (W)w, ++preparecnt);
4458 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4813 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4459 prepares [preparecnt - 1] = w; 4814 prepares [preparecnt - 1] = w;
4460 4815
4461 EV_FREQUENT_CHECK; 4816 EV_FREQUENT_CHECK;
4462} 4817}
4463 4818
4464void 4819void
4465ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4820ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4466{ 4821{
4467 clear_pending (EV_A_ (W)w); 4822 clear_pending (EV_A_ (W)w);
4468 if (expect_false (!ev_is_active (w))) 4823 if (ecb_expect_false (!ev_is_active (w)))
4469 return; 4824 return;
4470 4825
4471 EV_FREQUENT_CHECK; 4826 EV_FREQUENT_CHECK;
4472 4827
4473 { 4828 {
… …
4483} 4838}
4484#endif 4839#endif
4485 4840
4486#if EV_CHECK_ENABLE 4841#if EV_CHECK_ENABLE
4487void 4842void
4488ev_check_start (EV_P_ ev_check *w) EV_THROW 4843ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4489{ 4844{
4490 if (expect_false (ev_is_active (w))) 4845 if (ecb_expect_false (ev_is_active (w)))
4491 return; 4846 return;
4492 4847
4493 EV_FREQUENT_CHECK; 4848 EV_FREQUENT_CHECK;
4494 4849
4495 ev_start (EV_A_ (W)w, ++checkcnt); 4850 ev_start (EV_A_ (W)w, ++checkcnt);
4496 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4851 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4497 checks [checkcnt - 1] = w; 4852 checks [checkcnt - 1] = w;
4498 4853
4499 EV_FREQUENT_CHECK; 4854 EV_FREQUENT_CHECK;
4500} 4855}
4501 4856
4502void 4857void
4503ev_check_stop (EV_P_ ev_check *w) EV_THROW 4858ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4504{ 4859{
4505 clear_pending (EV_A_ (W)w); 4860 clear_pending (EV_A_ (W)w);
4506 if (expect_false (!ev_is_active (w))) 4861 if (ecb_expect_false (!ev_is_active (w)))
4507 return; 4862 return;
4508 4863
4509 EV_FREQUENT_CHECK; 4864 EV_FREQUENT_CHECK;
4510 4865
4511 { 4866 {
… …
4520 EV_FREQUENT_CHECK; 4875 EV_FREQUENT_CHECK;
4521} 4876}
4522#endif 4877#endif
4523 4878
4524#if EV_EMBED_ENABLE 4879#if EV_EMBED_ENABLE
4525void noinline 4880ecb_noinline
4881void
4526ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4882ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4527{ 4883{
4528 ev_run (w->other, EVRUN_NOWAIT); 4884 ev_run (w->other, EVRUN_NOWAIT);
4529} 4885}
4530 4886
4531static void 4887static void
… …
4579 ev_idle_stop (EV_A_ idle); 4935 ev_idle_stop (EV_A_ idle);
4580} 4936}
4581#endif 4937#endif
4582 4938
4583void 4939void
4584ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4940ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4585{ 4941{
4586 if (expect_false (ev_is_active (w))) 4942 if (ecb_expect_false (ev_is_active (w)))
4587 return; 4943 return;
4588 4944
4589 { 4945 {
4590 EV_P = w->other; 4946 EV_P = w->other;
4591 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4947 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4610 4966
4611 EV_FREQUENT_CHECK; 4967 EV_FREQUENT_CHECK;
4612} 4968}
4613 4969
4614void 4970void
4615ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4971ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4616{ 4972{
4617 clear_pending (EV_A_ (W)w); 4973 clear_pending (EV_A_ (W)w);
4618 if (expect_false (!ev_is_active (w))) 4974 if (ecb_expect_false (!ev_is_active (w)))
4619 return; 4975 return;
4620 4976
4621 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
4622 4978
4623 ev_io_stop (EV_A_ &w->io); 4979 ev_io_stop (EV_A_ &w->io);
… …
4630} 4986}
4631#endif 4987#endif
4632 4988
4633#if EV_FORK_ENABLE 4989#if EV_FORK_ENABLE
4634void 4990void
4635ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4991ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4636{ 4992{
4637 if (expect_false (ev_is_active (w))) 4993 if (ecb_expect_false (ev_is_active (w)))
4638 return; 4994 return;
4639 4995
4640 EV_FREQUENT_CHECK; 4996 EV_FREQUENT_CHECK;
4641 4997
4642 ev_start (EV_A_ (W)w, ++forkcnt); 4998 ev_start (EV_A_ (W)w, ++forkcnt);
4643 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4999 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4644 forks [forkcnt - 1] = w; 5000 forks [forkcnt - 1] = w;
4645 5001
4646 EV_FREQUENT_CHECK; 5002 EV_FREQUENT_CHECK;
4647} 5003}
4648 5004
4649void 5005void
4650ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5006ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4651{ 5007{
4652 clear_pending (EV_A_ (W)w); 5008 clear_pending (EV_A_ (W)w);
4653 if (expect_false (!ev_is_active (w))) 5009 if (ecb_expect_false (!ev_is_active (w)))
4654 return; 5010 return;
4655 5011
4656 EV_FREQUENT_CHECK; 5012 EV_FREQUENT_CHECK;
4657 5013
4658 { 5014 {
… …
4668} 5024}
4669#endif 5025#endif
4670 5026
4671#if EV_CLEANUP_ENABLE 5027#if EV_CLEANUP_ENABLE
4672void 5028void
4673ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5029ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4674{ 5030{
4675 if (expect_false (ev_is_active (w))) 5031 if (ecb_expect_false (ev_is_active (w)))
4676 return; 5032 return;
4677 5033
4678 EV_FREQUENT_CHECK; 5034 EV_FREQUENT_CHECK;
4679 5035
4680 ev_start (EV_A_ (W)w, ++cleanupcnt); 5036 ev_start (EV_A_ (W)w, ++cleanupcnt);
4681 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5037 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4682 cleanups [cleanupcnt - 1] = w; 5038 cleanups [cleanupcnt - 1] = w;
4683 5039
4684 /* cleanup watchers should never keep a refcount on the loop */ 5040 /* cleanup watchers should never keep a refcount on the loop */
4685 ev_unref (EV_A); 5041 ev_unref (EV_A);
4686 EV_FREQUENT_CHECK; 5042 EV_FREQUENT_CHECK;
4687} 5043}
4688 5044
4689void 5045void
4690ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5046ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4691{ 5047{
4692 clear_pending (EV_A_ (W)w); 5048 clear_pending (EV_A_ (W)w);
4693 if (expect_false (!ev_is_active (w))) 5049 if (ecb_expect_false (!ev_is_active (w)))
4694 return; 5050 return;
4695 5051
4696 EV_FREQUENT_CHECK; 5052 EV_FREQUENT_CHECK;
4697 ev_ref (EV_A); 5053 ev_ref (EV_A);
4698 5054
… …
4709} 5065}
4710#endif 5066#endif
4711 5067
4712#if EV_ASYNC_ENABLE 5068#if EV_ASYNC_ENABLE
4713void 5069void
4714ev_async_start (EV_P_ ev_async *w) EV_THROW 5070ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4715{ 5071{
4716 if (expect_false (ev_is_active (w))) 5072 if (ecb_expect_false (ev_is_active (w)))
4717 return; 5073 return;
4718 5074
4719 w->sent = 0; 5075 w->sent = 0;
4720 5076
4721 evpipe_init (EV_A); 5077 evpipe_init (EV_A);
4722 5078
4723 EV_FREQUENT_CHECK; 5079 EV_FREQUENT_CHECK;
4724 5080
4725 ev_start (EV_A_ (W)w, ++asynccnt); 5081 ev_start (EV_A_ (W)w, ++asynccnt);
4726 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5082 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4727 asyncs [asynccnt - 1] = w; 5083 asyncs [asynccnt - 1] = w;
4728 5084
4729 EV_FREQUENT_CHECK; 5085 EV_FREQUENT_CHECK;
4730} 5086}
4731 5087
4732void 5088void
4733ev_async_stop (EV_P_ ev_async *w) EV_THROW 5089ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4734{ 5090{
4735 clear_pending (EV_A_ (W)w); 5091 clear_pending (EV_A_ (W)w);
4736 if (expect_false (!ev_is_active (w))) 5092 if (ecb_expect_false (!ev_is_active (w)))
4737 return; 5093 return;
4738 5094
4739 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
4740 5096
4741 { 5097 {
… …
4749 5105
4750 EV_FREQUENT_CHECK; 5106 EV_FREQUENT_CHECK;
4751} 5107}
4752 5108
4753void 5109void
4754ev_async_send (EV_P_ ev_async *w) EV_THROW 5110ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4755{ 5111{
4756 w->sent = 1; 5112 w->sent = 1;
4757 evpipe_write (EV_A_ &async_pending); 5113 evpipe_write (EV_A_ &async_pending);
4758} 5114}
4759#endif 5115#endif
… …
4796 5152
4797 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5153 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4798} 5154}
4799 5155
4800void 5156void
4801ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5157ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4802{ 5158{
4803 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5159 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4804
4805 if (expect_false (!once))
4806 {
4807 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4808 return;
4809 }
4810 5160
4811 once->cb = cb; 5161 once->cb = cb;
4812 once->arg = arg; 5162 once->arg = arg;
4813 5163
4814 ev_init (&once->io, once_cb_io); 5164 ev_init (&once->io, once_cb_io);
… …
4827} 5177}
4828 5178
4829/*****************************************************************************/ 5179/*****************************************************************************/
4830 5180
4831#if EV_WALK_ENABLE 5181#if EV_WALK_ENABLE
4832void ecb_cold 5182ecb_cold
5183void
4833ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5184ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4834{ 5185{
4835 int i, j; 5186 int i, j;
4836 ev_watcher_list *wl, *wn; 5187 ev_watcher_list *wl, *wn;
4837 5188
4838 if (types & (EV_IO | EV_EMBED)) 5189 if (types & (EV_IO | EV_EMBED))

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