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Comparing libev/ev.c (file contents):
Revision 1.457 by root, Thu Sep 5 18:45:29 2013 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 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
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
312#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 348# else
316# define EV_USE_INOTIFY 0 349# define EV_USE_INOTIFY 0
… …
357 390
358#ifndef EV_HEAP_CACHE_AT 391#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 392# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif 393#endif
361 394
362#ifdef ANDROID 395#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 396/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 397# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 398# define EV_USE_SELECT 0
366/* 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 */
367# undef EV_USE_CLOCK_SYSCALL 400# undef EV_USE_CLOCK_SYSCALL
… …
381# include <sys/syscall.h> 414# include <sys/syscall.h>
382# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
384# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
386# else 420# else
387# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
388# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
389# endif 423# endif
390#endif 424#endif
… …
408 442
409#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
410/* 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 */
411# if !defined _WIN32 && !defined __hpux 445# if !defined _WIN32 && !defined __hpux
412# 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
413# endif 472# endif
414#endif 473#endif
415 474
416#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
417# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
459 uint32_t ssi_signo; 518 uint32_t ssi_signo;
460 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
461}; 520};
462#endif 521#endif
463 522
464/**/ 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/*****************************************************************************/
465 583
466#if EV_VERIFY >= 3 584#if EV_VERIFY >= 3
467# define EV_FREQUENT_CHECK ev_verify (EV_A) 585# define EV_FREQUENT_CHECK ev_verify (EV_A)
468#else 586#else
469# define EV_FREQUENT_CHECK do { } while (0) 587# define EV_FREQUENT_CHECK do { } while (0)
… …
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 603/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 604/* ECB.H BEGIN */
487/* 605/*
488 * libecb - http://software.schmorp.de/pkg/libecb 606 * libecb - http://software.schmorp.de/pkg/libecb
489 * 607 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 608 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 609 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 610 * All rights reserved.
493 * 611 *
494 * Redistribution and use in source and binary forms, with or without modifica- 612 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 613 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 627 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 628 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 629 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 630 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 631 * OF THE POSSIBILITY OF SUCH DAMAGE.
632 *
633 * Alternatively, the contents of this file may be used under the terms of
634 * the GNU General Public License ("GPL") version 2 or any later version,
635 * in which case the provisions of the GPL are applicable instead of
636 * the above. If you wish to allow the use of your version of this file
637 * only under the terms of the GPL and not to allow others to use your
638 * version of this file under the BSD license, indicate your decision
639 * by deleting the provisions above and replace them with the notice
640 * and other provisions required by the GPL. If you do not delete the
641 * provisions above, a recipient may use your version of this file under
642 * either the BSD or the GPL.
514 */ 643 */
515 644
516#ifndef ECB_H 645#ifndef ECB_H
517#define ECB_H 646#define ECB_H
518 647
519/* 16 bits major, 16 bits minor */ 648/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003 649#define ECB_VERSION 0x00010006
521 650
522#ifdef _WIN32 651#ifdef _WIN32
523 typedef signed char int8_t; 652 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 653 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 654 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 671 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 672 typedef int32_t intptr_t;
544 #endif 673 #endif
545#else 674#else
546 #include <inttypes.h> 675 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 676 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
549 #else 678 #else
550 #define ECB_PTRSIZE 4 679 #define ECB_PTRSIZE 4
551 #endif 680 #endif
552#endif 681#endif
553 682
683#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
684#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
685
554/* work around x32 idiocy by defining proper macros */ 686/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64 687#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
556 #if __ILP32 688 #if _ILP32
557 #define ECB_AMD64_X32 1 689 #define ECB_AMD64_X32 1
558 #else 690 #else
559 #define ECB_AMD64 1 691 #define ECB_AMD64 1
560 #endif 692 #endif
561#endif 693#endif
… …
565 * causing enormous grief in return for some better fake benchmark numbers. 697 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so. 698 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have 699 * we try to detect these and simply assume they are not gcc - if they have
568 * an issue with that they should have done it right in the first place. 700 * an issue with that they should have done it right in the first place.
569 */ 701 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 702#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0 703 #define ECB_GCC_VERSION(major,minor) 0
573 #else 704#else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 705 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif 706#endif
576#endif
577 707
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 708#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
579#define ECB_C99 (__STDC_VERSION__ >= 199901L) 709
580#define ECB_C11 (__STDC_VERSION__ >= 201112L) 710#if __clang__ && defined __has_builtin
711 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
712#else
713 #define ECB_CLANG_BUILTIN(x) 0
714#endif
715
716#if __clang__ && defined __has_extension
717 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
718#else
719 #define ECB_CLANG_EXTENSION(x) 0
720#endif
721
581#define ECB_CPP (__cplusplus+0) 722#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L) 723#define ECB_CPP11 (__cplusplus >= 201103L)
724#define ECB_CPP14 (__cplusplus >= 201402L)
725#define ECB_CPP17 (__cplusplus >= 201703L)
726
727#if ECB_CPP
728 #define ECB_C 0
729 #define ECB_STDC_VERSION 0
730#else
731 #define ECB_C 1
732 #define ECB_STDC_VERSION __STDC_VERSION__
733#endif
734
735#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
736#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
737#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
583 738
584#if ECB_CPP 739#if ECB_CPP
585 #define ECB_EXTERN_C extern "C" 740 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 741 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END } 742 #define ECB_EXTERN_C_END }
… …
602 757
603#if ECB_NO_SMP 758#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0) 759 #define ECB_MEMORY_FENCE do { } while (0)
605#endif 760#endif
606 761
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
607#ifndef ECB_MEMORY_FENCE 771#ifndef ECB_MEMORY_FENCE
608 #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")
609 #if __i386 || __i386__ 774 #if __i386 || __i386__
610 #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")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 776 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 777 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 778 #elif ECB_GCC_AMD64
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 779 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 780 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 781 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 782 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #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 */
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 791 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 792 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
793 || defined __ARM_ARCH_6T2__
621 #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")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 795 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 796 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 797 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__ 798 #elif __aarch64__
799 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
800 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
626 #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")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 802 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 803 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__ 804 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 805 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
631 #elif defined __mips__ 806 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */ 807 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
633 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ 808 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") 809 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
635 #elif defined __alpha__ 810 #elif defined __alpha__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 811 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
637 #elif defined __hppa__ 812 #elif defined __hppa__
… …
651 826
652#ifndef ECB_MEMORY_FENCE 827#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(4,7) 828 #if ECB_GCC_VERSION(4,7)
654 /* see comment below (stdatomic.h) about the C11 memory model. */ 829 /* see comment below (stdatomic.h) about the C11 memory model. */
655 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 830 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
831 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
832 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
833 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
656 834
657 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 835 #elif ECB_CLANG_EXTENSION(c_atomic)
658 * without risking compile time errors with other compilers. We *could*
659 * define our own ecb_clang_has_feature, but I just can't be bothered to work
660 * around this shit time and again.
661 * #elif defined __clang && __has_feature (cxx_atomic)
662 * // see comment below (stdatomic.h) about the C11 memory model. 836 /* see comment below (stdatomic.h) about the C11 memory model. */
663 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 837 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
664 */ 838 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
839 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
840 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
665 841
666 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 842 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
667 #define ECB_MEMORY_FENCE __sync_synchronize () 843 #define ECB_MEMORY_FENCE __sync_synchronize ()
844 #elif _MSC_VER >= 1500 /* VC++ 2008 */
845 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
846 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
847 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
848 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
849 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
668 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 850 #elif _MSC_VER >= 1400 /* VC++ 2005 */
669 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 851 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
670 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 852 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
671 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 853 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
672 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 854 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
673 #elif defined _WIN32 855 #elif defined _WIN32
674 #include <WinNT.h> 856 #include <WinNT.h>
675 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 857 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
676 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 858 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
677 #include <mbarrier.h> 859 #include <mbarrier.h>
678 #define ECB_MEMORY_FENCE __machine_rw_barrier () 860 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
679 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 861 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
680 #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 ()
681 #elif __xlC__ 864 #elif __xlC__
682 #define ECB_MEMORY_FENCE __sync () 865 #define ECB_MEMORY_FENCE __sync ()
683 #endif 866 #endif
684#endif 867#endif
685 868
686#ifndef ECB_MEMORY_FENCE 869#ifndef ECB_MEMORY_FENCE
687 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 870 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
688 /* 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, */
689 /* not just C11 atomics and atomic accesses */ 872 /* not just C11 atomics and atomic accesses */
690 #include <stdatomic.h> 873 #include <stdatomic.h>
691 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
692 /* any fence other than seq_cst, which isn't very efficient for us. */
693 /* Why that is, we don't know - either the C11 memory model is quite useless */
694 /* for most usages, or gcc and clang have a bug */
695 /* I *currently* lean towards the latter, and inefficiently implement */
696 /* all three of ecb's fences as a seq_cst fence */
697 #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)
698 #endif 877 #endif
699#endif 878#endif
700 879
701#ifndef ECB_MEMORY_FENCE 880#ifndef ECB_MEMORY_FENCE
702 #if !ECB_AVOID_PTHREADS 881 #if !ECB_AVOID_PTHREADS
… …
722 901
723#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 902#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
724 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 903 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
725#endif 904#endif
726 905
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
727/*****************************************************************************/ 910/*****************************************************************************/
728 911
729#if __cplusplus 912#if ECB_CPP
730 #define ecb_inline static inline 913 #define ecb_inline static inline
731#elif ECB_GCC_VERSION(2,5) 914#elif ECB_GCC_VERSION(2,5)
732 #define ecb_inline static __inline__ 915 #define ecb_inline static __inline__
733#elif ECB_C99 916#elif ECB_C99
734 #define ecb_inline static inline 917 #define ecb_inline static inline
… …
748 931
749#define ECB_CONCAT_(a, b) a ## b 932#define ECB_CONCAT_(a, b) a ## b
750#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 933#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
751#define ECB_STRINGIFY_(a) # a 934#define ECB_STRINGIFY_(a) # a
752#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 935#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
936#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
753 937
754#define ecb_function_ ecb_inline 938#define ecb_function_ ecb_inline
755 939
756#if ECB_GCC_VERSION(3,1) 940#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
757 #define ecb_attribute(attrlist) __attribute__(attrlist) 941 #define ecb_attribute(attrlist) __attribute__ (attrlist)
942#else
943 #define ecb_attribute(attrlist)
944#endif
945
946#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
758 #define ecb_is_constant(expr) __builtin_constant_p (expr) 947 #define ecb_is_constant(expr) __builtin_constant_p (expr)
948#else
949 /* possible C11 impl for integral types
950 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
951 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
952
953 #define ecb_is_constant(expr) 0
954#endif
955
956#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
759 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 957 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
958#else
959 #define ecb_expect(expr,value) (expr)
960#endif
961
962#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
760 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 963 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
761#else 964#else
762 #define ecb_attribute(attrlist)
763 #define ecb_is_constant(expr) 0
764 #define ecb_expect(expr,value) (expr)
765 #define ecb_prefetch(addr,rw,locality) 965 #define ecb_prefetch(addr,rw,locality)
766#endif 966#endif
767 967
768/* no emulation for ecb_decltype */ 968/* no emulation for ecb_decltype */
769#if ECB_GCC_VERSION(4,5) 969#if ECB_CPP11
970 // older implementations might have problems with decltype(x)::type, work around it
971 template<class T> struct ecb_decltype_t { typedef T type; };
770 #define ecb_decltype(x) __decltype(x) 972 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
771#elif ECB_GCC_VERSION(3,0) 973#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
772 #define ecb_decltype(x) __typeof(x) 974 #define ecb_decltype(x) __typeof__ (x)
773#endif 975#endif
774 976
977#if _MSC_VER >= 1300
978 #define ecb_deprecated __declspec (deprecated)
979#else
980 #define ecb_deprecated ecb_attribute ((__deprecated__))
981#endif
982
983#if _MSC_VER >= 1500
984 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
985#elif ECB_GCC_VERSION(4,5)
986 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
987#else
988 #define ecb_deprecated_message(msg) ecb_deprecated
989#endif
990
991#if _MSC_VER >= 1400
992 #define ecb_noinline __declspec (noinline)
993#else
775#define ecb_noinline ecb_attribute ((__noinline__)) 994 #define ecb_noinline ecb_attribute ((__noinline__))
995#endif
996
776#define ecb_unused ecb_attribute ((__unused__)) 997#define ecb_unused ecb_attribute ((__unused__))
777#define ecb_const ecb_attribute ((__const__)) 998#define ecb_const ecb_attribute ((__const__))
778#define ecb_pure ecb_attribute ((__pure__)) 999#define ecb_pure ecb_attribute ((__pure__))
779 1000
780#if ECB_C11 1001#if ECB_C11 || __IBMC_NORETURN
1002 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
781 #define ecb_noreturn _Noreturn 1003 #define ecb_noreturn _Noreturn
1004#elif ECB_CPP11
1005 #define ecb_noreturn [[noreturn]]
1006#elif _MSC_VER >= 1200
1007 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
1008 #define ecb_noreturn __declspec (noreturn)
782#else 1009#else
783 #define ecb_noreturn ecb_attribute ((__noreturn__)) 1010 #define ecb_noreturn ecb_attribute ((__noreturn__))
784#endif 1011#endif
785 1012
786#if ECB_GCC_VERSION(4,3) 1013#if ECB_GCC_VERSION(4,3)
… …
801/* for compatibility to the rest of the world */ 1028/* for compatibility to the rest of the world */
802#define ecb_likely(expr) ecb_expect_true (expr) 1029#define ecb_likely(expr) ecb_expect_true (expr)
803#define ecb_unlikely(expr) ecb_expect_false (expr) 1030#define ecb_unlikely(expr) ecb_expect_false (expr)
804 1031
805/* count trailing zero bits and count # of one bits */ 1032/* count trailing zero bits and count # of one bits */
806#if ECB_GCC_VERSION(3,4) 1033#if ECB_GCC_VERSION(3,4) \
1034 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
1035 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
1036 && ECB_CLANG_BUILTIN(__builtin_popcount))
807 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 1037 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
808 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 1038 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
809 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 1039 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
810 #define ecb_ctz32(x) __builtin_ctz (x) 1040 #define ecb_ctz32(x) __builtin_ctz (x)
811 #define ecb_ctz64(x) __builtin_ctzll (x) 1041 #define ecb_ctz64(x) __builtin_ctzll (x)
812 #define ecb_popcount32(x) __builtin_popcount (x) 1042 #define ecb_popcount32(x) __builtin_popcount (x)
813 /* no popcountll */ 1043 /* no popcountll */
814#else 1044#else
815 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1045 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
816 ecb_function_ int 1046 ecb_function_ ecb_const int
817 ecb_ctz32 (uint32_t x) 1047 ecb_ctz32 (uint32_t x)
818 { 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
819 int r = 0; 1054 int r = 0;
820 1055
821 x &= ~x + 1; /* this isolates the lowest bit */ 1056 x &= ~x + 1; /* this isolates the lowest bit */
822 1057
823#if ECB_branchless_on_i386 1058#if ECB_branchless_on_i386
… …
833 if (x & 0xff00ff00) r += 8; 1068 if (x & 0xff00ff00) r += 8;
834 if (x & 0xffff0000) r += 16; 1069 if (x & 0xffff0000) r += 16;
835#endif 1070#endif
836 1071
837 return r; 1072 return r;
1073#endif
838 } 1074 }
839 1075
840 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1076 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
841 ecb_function_ int 1077 ecb_function_ ecb_const int
842 ecb_ctz64 (uint64_t x) 1078 ecb_ctz64 (uint64_t x)
843 { 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
844 int shift = x & 0xffffffffU ? 0 : 32; 1085 int shift = x & 0xffffffff ? 0 : 32;
845 return ecb_ctz32 (x >> shift) + shift; 1086 return ecb_ctz32 (x >> shift) + shift;
1087#endif
846 } 1088 }
847 1089
848 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1090 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
849 ecb_function_ int 1091 ecb_function_ ecb_const int
850 ecb_popcount32 (uint32_t x) 1092 ecb_popcount32 (uint32_t x)
851 { 1093 {
852 x -= (x >> 1) & 0x55555555; 1094 x -= (x >> 1) & 0x55555555;
853 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1095 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
854 x = ((x >> 4) + x) & 0x0f0f0f0f; 1096 x = ((x >> 4) + x) & 0x0f0f0f0f;
855 x *= 0x01010101; 1097 x *= 0x01010101;
856 1098
857 return x >> 24; 1099 return x >> 24;
858 } 1100 }
859 1101
860 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1102 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
861 ecb_function_ int ecb_ld32 (uint32_t x) 1103 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
862 { 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
863 int r = 0; 1110 int r = 0;
864 1111
865 if (x >> 16) { x >>= 16; r += 16; } 1112 if (x >> 16) { x >>= 16; r += 16; }
866 if (x >> 8) { x >>= 8; r += 8; } 1113 if (x >> 8) { x >>= 8; r += 8; }
867 if (x >> 4) { x >>= 4; r += 4; } 1114 if (x >> 4) { x >>= 4; r += 4; }
868 if (x >> 2) { x >>= 2; r += 2; } 1115 if (x >> 2) { x >>= 2; r += 2; }
869 if (x >> 1) { r += 1; } 1116 if (x >> 1) { r += 1; }
870 1117
871 return r; 1118 return r;
1119#endif
872 } 1120 }
873 1121
874 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1122 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
875 ecb_function_ int ecb_ld64 (uint64_t x) 1123 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
876 { 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
877 int r = 0; 1130 int r = 0;
878 1131
879 if (x >> 32) { x >>= 32; r += 32; } 1132 if (x >> 32) { x >>= 32; r += 32; }
880 1133
881 return r + ecb_ld32 (x); 1134 return r + ecb_ld32 (x);
1135#endif
882 } 1136 }
883#endif 1137#endif
884 1138
885ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1139ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
886ecb_function_ 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)); }
887ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1141ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
888ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1142ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
889 1143
890ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1144ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
891ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1145ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
892{ 1146{
893 return ( (x * 0x0802U & 0x22110U) 1147 return ( (x * 0x0802U & 0x22110U)
894 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1148 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
895} 1149}
896 1150
897ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1151ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
898ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1152ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
899{ 1153{
900 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1154 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
901 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1155 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
902 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1156 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
903 x = ( x >> 8 ) | ( x << 8); 1157 x = ( x >> 8 ) | ( x << 8);
904 1158
905 return x; 1159 return x;
906} 1160}
907 1161
908ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1162ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
909ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1163ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
910{ 1164{
911 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1165 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
912 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1166 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
913 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1167 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
914 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1168 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
917 return x; 1171 return x;
918} 1172}
919 1173
920/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1174/* popcount64 is only available on 64 bit cpus as gcc builtin */
921/* so for this version we are lazy */ 1175/* so for this version we are lazy */
922ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1176ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
923ecb_function_ int 1177ecb_function_ ecb_const int
924ecb_popcount64 (uint64_t x) 1178ecb_popcount64 (uint64_t x)
925{ 1179{
926 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1180 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
927} 1181}
928 1182
929ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1183ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
930ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1184ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
931ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1185ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
932ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1186ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
933ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1187ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
934ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1188ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
935ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1189ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
936ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1190ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
937 1191
938ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1192ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
939ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1193ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
940ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1194ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
941ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1195ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
942ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1196ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
943ecb_inline 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); }
944ecb_inline 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); }
945ecb_inline 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); }
946 1200
947#if ECB_GCC_VERSION(4,3) 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
948 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1205 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1206 #endif
949 #define ecb_bswap32(x) __builtin_bswap32 (x) 1207 #define ecb_bswap32(x) __builtin_bswap32 (x)
950 #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)))
951#else 1214#else
952 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1215 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
953 ecb_function_ uint16_t 1216 ecb_function_ ecb_const uint16_t
954 ecb_bswap16 (uint16_t x) 1217 ecb_bswap16 (uint16_t x)
955 { 1218 {
956 return ecb_rotl16 (x, 8); 1219 return ecb_rotl16 (x, 8);
957 } 1220 }
958 1221
959 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1222 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
960 ecb_function_ uint32_t 1223 ecb_function_ ecb_const uint32_t
961 ecb_bswap32 (uint32_t x) 1224 ecb_bswap32 (uint32_t x)
962 { 1225 {
963 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1226 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
964 } 1227 }
965 1228
966 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1229 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
967 ecb_function_ uint64_t 1230 ecb_function_ ecb_const uint64_t
968 ecb_bswap64 (uint64_t x) 1231 ecb_bswap64 (uint64_t x)
969 { 1232 {
970 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1233 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
971 } 1234 }
972#endif 1235#endif
973 1236
974#if ECB_GCC_VERSION(4,5) 1237#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
975 #define ecb_unreachable() __builtin_unreachable () 1238 #define ecb_unreachable() __builtin_unreachable ()
976#else 1239#else
977 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1240 /* this seems to work fine, but gcc always emits a warning for it :/ */
978 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1241 ecb_inline ecb_noreturn void ecb_unreachable (void);
979 ecb_inline void ecb_unreachable (void) { } 1242 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
980#endif 1243#endif
981 1244
982/* try to tell the compiler that some condition is definitely true */ 1245/* try to tell the compiler that some condition is definitely true */
983#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1246#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
984 1247
985ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1248ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
986ecb_inline unsigned char 1249ecb_inline ecb_const uint32_t
987ecb_byteorder_helper (void) 1250ecb_byteorder_helper (void)
988{ 1251{
989 /* the union code still generates code under pressure in gcc, */ 1252 /* the union code still generates code under pressure in gcc, */
990 /* but less than using pointers, and always seems to */ 1253 /* but less than using pointers, and always seems to */
991 /* successfully return a constant. */ 1254 /* successfully return a constant. */
992 /* the reason why we have this horrible preprocessor mess */ 1255 /* the reason why we have this horrible preprocessor mess */
993 /* 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 */
994 /* or when using a recent enough gcc version (>= 4.6) */ 1257 /* or when using a recent enough gcc version (>= 4.6) */
995#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
996 return 0x44;
997#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
998 return 0x44; 1261 return 0x44332211;
999#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
1000 return 0x11; 1265 return 0x11223344;
1001#else 1266#else
1002 union 1267 union
1003 { 1268 {
1269 uint8_t c[4];
1004 uint32_t i; 1270 uint32_t u;
1005 uint8_t c;
1006 } u = { 0x11223344 }; 1271 } u = { 0x11, 0x22, 0x33, 0x44 };
1007 return u.c; 1272 return u.u;
1008#endif 1273#endif
1009} 1274}
1010 1275
1011ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1276ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1012ecb_inline 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; }
1013ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1278ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1014ecb_inline 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; }
1015 1280
1016#if ECB_GCC_VERSION(3,0) || ECB_C99 1281#if ECB_GCC_VERSION(3,0) || ECB_C99
1017 #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))
1018#else 1283#else
1019 #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)))
1020#endif 1285#endif
1021 1286
1022#if __cplusplus 1287#if ECB_CPP
1023 template<typename T> 1288 template<typename T>
1024 static inline T ecb_div_rd (T val, T div) 1289 static inline T ecb_div_rd (T val, T div)
1025 { 1290 {
1026 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1291 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1027 } 1292 }
… …
1044 } 1309 }
1045#else 1310#else
1046 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1311 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1047#endif 1312#endif
1048 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}
1409
1049/*******************************************************************************/ 1410/*******************************************************************************/
1050/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1411/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1051 1412
1052/* basically, everything uses "ieee pure-endian" floating point numbers */ 1413/* basically, everything uses "ieee pure-endian" floating point numbers */
1053/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1414/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1054#if 0 \ 1415#if 0 \
1055 || __i386 || __i386__ \ 1416 || __i386 || __i386__ \
1056 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1417 || ECB_GCC_AMD64 \
1057 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1418 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1058 || defined __arm__ && defined __ARM_EABI__ \
1059 || defined __s390__ || defined __s390x__ \ 1419 || defined __s390__ || defined __s390x__ \
1060 || defined __mips__ \ 1420 || defined __mips__ \
1061 || defined __alpha__ \ 1421 || defined __alpha__ \
1062 || defined __hppa__ \ 1422 || defined __hppa__ \
1063 || defined __ia64__ \ 1423 || defined __ia64__ \
1064 || defined __m68k__ \ 1424 || defined __m68k__ \
1065 || defined __m88k__ \ 1425 || defined __m88k__ \
1066 || defined __sh__ \ 1426 || defined __sh__ \
1067 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1427 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1428 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1429 || defined __aarch64__
1068 #define ECB_STDFP 1 1430 #define ECB_STDFP 1
1069 #include <string.h> /* for memcpy */ 1431 #include <string.h> /* for memcpy */
1070#else 1432#else
1071 #define ECB_STDFP 0 1433 #define ECB_STDFP 0
1072 #include <math.h> /* for frexp*, ldexp* */
1073#endif 1434#endif
1074 1435
1075#ifndef ECB_NO_LIBM 1436#ifndef ECB_NO_LIBM
1076 1437
1438 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1439
1440 /* only the oldest of old doesn't have this one. solaris. */
1441 #ifdef INFINITY
1442 #define ECB_INFINITY INFINITY
1443 #else
1444 #define ECB_INFINITY HUGE_VAL
1445 #endif
1446
1447 #ifdef NAN
1448 #define ECB_NAN NAN
1449 #else
1450 #define ECB_NAN ECB_INFINITY
1451 #endif
1452
1453 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1454 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1455 #define ecb_frexpf(x,e) frexpf ((x), (e))
1456 #else
1457 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1458 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1459 #endif
1460
1077 /* convert a float to ieee single/binary32 */ 1461 /* convert a float to ieee single/binary32 */
1078 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1462 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1079 ecb_function_ uint32_t 1463 ecb_function_ ecb_const uint32_t
1080 ecb_float_to_binary32 (float x) 1464 ecb_float_to_binary32 (float x)
1081 { 1465 {
1082 uint32_t r; 1466 uint32_t r;
1083 1467
1084 #if ECB_STDFP 1468 #if ECB_STDFP
… …
1091 if (x == 0e0f ) return 0x00000000U; 1475 if (x == 0e0f ) return 0x00000000U;
1092 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1476 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1093 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1477 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1094 if (x != x ) return 0x7fbfffffU; 1478 if (x != x ) return 0x7fbfffffU;
1095 1479
1096 m = frexpf (x, &e) * 0x1000000U; 1480 m = ecb_frexpf (x, &e) * 0x1000000U;
1097 1481
1098 r = m & 0x80000000U; 1482 r = m & 0x80000000U;
1099 1483
1100 if (r) 1484 if (r)
1101 m = -m; 1485 m = -m;
… …
1113 1497
1114 return r; 1498 return r;
1115 } 1499 }
1116 1500
1117 /* converts an ieee single/binary32 to a float */ 1501 /* converts an ieee single/binary32 to a float */
1118 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1502 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1119 ecb_function_ float 1503 ecb_function_ ecb_const float
1120 ecb_binary32_to_float (uint32_t x) 1504 ecb_binary32_to_float (uint32_t x)
1121 { 1505 {
1122 float r; 1506 float r;
1123 1507
1124 #if ECB_STDFP 1508 #if ECB_STDFP
… …
1134 x |= 0x800000U; 1518 x |= 0x800000U;
1135 else 1519 else
1136 e = 1; 1520 e = 1;
1137 1521
1138 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1522 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1139 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1523 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1140 1524
1141 r = neg ? -r : r; 1525 r = neg ? -r : r;
1142 #endif 1526 #endif
1143 1527
1144 return r; 1528 return r;
1145 } 1529 }
1146 1530
1147 /* convert a double to ieee double/binary64 */ 1531 /* convert a double to ieee double/binary64 */
1148 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1532 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1149 ecb_function_ uint64_t 1533 ecb_function_ ecb_const uint64_t
1150 ecb_double_to_binary64 (double x) 1534 ecb_double_to_binary64 (double x)
1151 { 1535 {
1152 uint64_t r; 1536 uint64_t r;
1153 1537
1154 #if ECB_STDFP 1538 #if ECB_STDFP
… …
1183 1567
1184 return r; 1568 return r;
1185 } 1569 }
1186 1570
1187 /* converts an ieee double/binary64 to a double */ 1571 /* converts an ieee double/binary64 to a double */
1188 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1572 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1189 ecb_function_ double 1573 ecb_function_ ecb_const double
1190 ecb_binary64_to_double (uint64_t x) 1574 ecb_binary64_to_double (uint64_t x)
1191 { 1575 {
1192 double r; 1576 double r;
1193 1577
1194 #if ECB_STDFP 1578 #if ECB_STDFP
… …
1212 #endif 1596 #endif
1213 1597
1214 return r; 1598 return r;
1215 } 1599 }
1216 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
1217#endif 1617#endif
1218 1618
1219#endif 1619#endif
1220 1620
1221/* ECB.H END */ 1621/* ECB.H END */
1222 1622
1223#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1623#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1224/* 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
1225 * 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
1226 * 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
1227 * libev, in which cases the memory fences become nops. 1627 * libev, in which cases the memory fences become nops.
1228 * alternatively, you can remove this #error and link against libpthread, 1628 * alternatively, you can remove this #error and link against libpthread,
1229 * which will then provide the memory fences. 1629 * which will then provide the memory fences.
1230 */ 1630 */
1231# error "memory fences not defined for your architecture, please report" 1631# error "memory fences not defined for your architecture, please report"
… …
1235# define ECB_MEMORY_FENCE do { } while (0) 1635# define ECB_MEMORY_FENCE do { } while (0)
1236# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1636# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1237# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1637# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1238#endif 1638#endif
1239 1639
1240#define expect_false(cond) ecb_expect_false (cond)
1241#define expect_true(cond) ecb_expect_true (cond)
1242#define noinline ecb_noinline
1243
1244#define inline_size ecb_inline 1640#define inline_size ecb_inline
1245 1641
1246#if EV_FEATURE_CODE 1642#if EV_FEATURE_CODE
1247# define inline_speed ecb_inline 1643# define inline_speed ecb_inline
1248#else 1644#else
1249# define inline_speed static noinline 1645# define inline_speed ecb_noinline static
1250#endif 1646#endif
1251 1647
1252#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1648#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1253 1649
1254#if EV_MINPRI == EV_MAXPRI 1650#if EV_MINPRI == EV_MAXPRI
1255# define ABSPRI(w) (((W)w), 0) 1651# define ABSPRI(w) (((W)w), 0)
1256#else 1652#else
1257# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1653# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1258#endif 1654#endif
1259 1655
1260#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1656#define EMPTY /* required for microsofts broken pseudo-c compiler */
1261#define EMPTY2(a,b) /* used to suppress some warnings */
1262 1657
1263typedef ev_watcher *W; 1658typedef ev_watcher *W;
1264typedef ev_watcher_list *WL; 1659typedef ev_watcher_list *WL;
1265typedef ev_watcher_time *WT; 1660typedef ev_watcher_time *WT;
1266 1661
… …
1291# include "ev_win32.c" 1686# include "ev_win32.c"
1292#endif 1687#endif
1293 1688
1294/*****************************************************************************/ 1689/*****************************************************************************/
1295 1690
1691#if EV_USE_LINUXAIO
1692# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1693#endif
1694
1296/* define a suitable floor function (only used by periodics atm) */ 1695/* define a suitable floor function (only used by periodics atm) */
1297 1696
1298#if EV_USE_FLOOR 1697#if EV_USE_FLOOR
1299# include <math.h> 1698# include <math.h>
1300# define ev_floor(v) floor (v) 1699# define ev_floor(v) floor (v)
1301#else 1700#else
1302 1701
1303#include <float.h> 1702#include <float.h>
1304 1703
1305/* 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
1306static ev_tstamp noinline 1706static ev_tstamp
1307ev_floor (ev_tstamp v) 1707ev_floor (ev_tstamp v)
1308{ 1708{
1309 /* the choice of shift factor is not terribly important */ 1709 /* the choice of shift factor is not terribly important */
1310#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1710#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1311 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1711 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1312#else 1712#else
1313 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1713 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1314#endif 1714#endif
1315 1715
1316 /* argument too large for an unsigned long? */ 1716 /* argument too large for an unsigned long? */
1317 if (expect_false (v >= shift)) 1717 if (ecb_expect_false (v >= shift))
1318 { 1718 {
1319 ev_tstamp f; 1719 ev_tstamp f;
1320 1720
1321 if (v == v - 1.) 1721 if (v == v - 1.)
1322 return v; /* very large number */ 1722 return v; /* very large number */
… …
1324 f = shift * ev_floor (v * (1. / shift)); 1724 f = shift * ev_floor (v * (1. / shift));
1325 return f + ev_floor (v - f); 1725 return f + ev_floor (v - f);
1326 } 1726 }
1327 1727
1328 /* special treatment for negative args? */ 1728 /* special treatment for negative args? */
1329 if (expect_false (v < 0.)) 1729 if (ecb_expect_false (v < 0.))
1330 { 1730 {
1331 ev_tstamp f = -ev_floor (-v); 1731 ev_tstamp f = -ev_floor (-v);
1332 1732
1333 return f - (f == v ? 0 : 1); 1733 return f - (f == v ? 0 : 1);
1334 } 1734 }
… …
1343 1743
1344#ifdef __linux 1744#ifdef __linux
1345# include <sys/utsname.h> 1745# include <sys/utsname.h>
1346#endif 1746#endif
1347 1747
1348static unsigned int noinline ecb_cold 1748ecb_noinline ecb_cold
1749static unsigned int
1349ev_linux_version (void) 1750ev_linux_version (void)
1350{ 1751{
1351#ifdef __linux 1752#ifdef __linux
1352 unsigned int v = 0; 1753 unsigned int v = 0;
1353 struct utsname buf; 1754 struct utsname buf;
… …
1382} 1783}
1383 1784
1384/*****************************************************************************/ 1785/*****************************************************************************/
1385 1786
1386#if EV_AVOID_STDIO 1787#if EV_AVOID_STDIO
1387static void noinline ecb_cold 1788ecb_noinline ecb_cold
1789static void
1388ev_printerr (const char *msg) 1790ev_printerr (const char *msg)
1389{ 1791{
1390 write (STDERR_FILENO, msg, strlen (msg)); 1792 write (STDERR_FILENO, msg, strlen (msg));
1391} 1793}
1392#endif 1794#endif
1393 1795
1394static void (*syserr_cb)(const char *msg) EV_THROW; 1796static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1395 1797
1396void ecb_cold 1798ecb_cold
1799void
1397ev_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
1398{ 1801{
1399 syserr_cb = cb; 1802 syserr_cb = cb;
1400} 1803}
1401 1804
1402static void noinline ecb_cold 1805ecb_noinline ecb_cold
1806static void
1403ev_syserr (const char *msg) 1807ev_syserr (const char *msg)
1404{ 1808{
1405 if (!msg) 1809 if (!msg)
1406 msg = "(libev) system error"; 1810 msg = "(libev) system error";
1407 1811
… …
1420 abort (); 1824 abort ();
1421 } 1825 }
1422} 1826}
1423 1827
1424static void * 1828static void *
1425ev_realloc_emul (void *ptr, long size) EV_THROW 1829ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1426{ 1830{
1427 /* some systems, notably openbsd and darwin, fail to properly 1831 /* some systems, notably openbsd and darwin, fail to properly
1428 * 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
1429 * the single unix specification, so work around them here. 1833 * the single unix specification, so work around them here.
1430 * recently, also (at least) fedora and debian started breaking it, 1834 * recently, also (at least) fedora and debian started breaking it,
… …
1436 1840
1437 free (ptr); 1841 free (ptr);
1438 return 0; 1842 return 0;
1439} 1843}
1440 1844
1441static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1845static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1442 1846
1443void ecb_cold 1847ecb_cold
1848void
1444ev_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
1445{ 1850{
1446 alloc = cb; 1851 alloc = cb;
1447} 1852}
1448 1853
1449inline_speed void * 1854inline_speed void *
… …
1476typedef struct 1881typedef struct
1477{ 1882{
1478 WL head; 1883 WL head;
1479 unsigned char events; /* the events watched for */ 1884 unsigned char events; /* the events watched for */
1480 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) */
1481 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 */
1482 unsigned char unused; 1887 unsigned char unused;
1483#if EV_USE_EPOLL 1888#if EV_USE_EPOLL
1484 unsigned int egen; /* generation counter to counter epoll bugs */ 1889 unsigned int egen; /* generation counter to counter epoll bugs */
1485#endif 1890#endif
1486#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1891#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1551 static int ev_default_loop_ptr; 1956 static int ev_default_loop_ptr;
1552 1957
1553#endif 1958#endif
1554 1959
1555#if EV_FEATURE_API 1960#if EV_FEATURE_API
1556# 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)
1557# 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)
1558# define EV_INVOKE_PENDING invoke_cb (EV_A) 1963# define EV_INVOKE_PENDING invoke_cb (EV_A)
1559#else 1964#else
1560# define EV_RELEASE_CB (void)0 1965# define EV_RELEASE_CB (void)0
1561# define EV_ACQUIRE_CB (void)0 1966# define EV_ACQUIRE_CB (void)0
1562# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1967# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1566 1971
1567/*****************************************************************************/ 1972/*****************************************************************************/
1568 1973
1569#ifndef EV_HAVE_EV_TIME 1974#ifndef EV_HAVE_EV_TIME
1570ev_tstamp 1975ev_tstamp
1571ev_time (void) EV_THROW 1976ev_time (void) EV_NOEXCEPT
1572{ 1977{
1573#if EV_USE_REALTIME 1978#if EV_USE_REALTIME
1574 if (expect_true (have_realtime)) 1979 if (ecb_expect_true (have_realtime))
1575 { 1980 {
1576 struct timespec ts; 1981 struct timespec ts;
1577 clock_gettime (CLOCK_REALTIME, &ts); 1982 clock_gettime (CLOCK_REALTIME, &ts);
1578 return ts.tv_sec + ts.tv_nsec * 1e-9; 1983 return ts.tv_sec + ts.tv_nsec * 1e-9;
1579 } 1984 }
… …
1587 1992
1588inline_size ev_tstamp 1993inline_size ev_tstamp
1589get_clock (void) 1994get_clock (void)
1590{ 1995{
1591#if EV_USE_MONOTONIC 1996#if EV_USE_MONOTONIC
1592 if (expect_true (have_monotonic)) 1997 if (ecb_expect_true (have_monotonic))
1593 { 1998 {
1594 struct timespec ts; 1999 struct timespec ts;
1595 clock_gettime (CLOCK_MONOTONIC, &ts); 2000 clock_gettime (CLOCK_MONOTONIC, &ts);
1596 return ts.tv_sec + ts.tv_nsec * 1e-9; 2001 return ts.tv_sec + ts.tv_nsec * 1e-9;
1597 } 2002 }
… …
1600 return ev_time (); 2005 return ev_time ();
1601} 2006}
1602 2007
1603#if EV_MULTIPLICITY 2008#if EV_MULTIPLICITY
1604ev_tstamp 2009ev_tstamp
1605ev_now (EV_P) EV_THROW 2010ev_now (EV_P) EV_NOEXCEPT
1606{ 2011{
1607 return ev_rt_now; 2012 return ev_rt_now;
1608} 2013}
1609#endif 2014#endif
1610 2015
1611void 2016void
1612ev_sleep (ev_tstamp delay) EV_THROW 2017ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1613{ 2018{
1614 if (delay > 0.) 2019 if (delay > 0.)
1615 { 2020 {
1616#if EV_USE_NANOSLEEP 2021#if EV_USE_NANOSLEEP
1617 struct timespec ts; 2022 struct timespec ts;
1618 2023
1619 EV_TS_SET (ts, delay); 2024 EV_TS_SET (ts, delay);
1620 nanosleep (&ts, 0); 2025 nanosleep (&ts, 0);
1621#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) */
1622 Sleep ((unsigned long)(delay * 1e3)); 2029 Sleep ((unsigned long)(delay * 1e3));
1623#else 2030#else
1624 struct timeval tv; 2031 struct timeval tv;
1625 2032
1626 /* 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 */
… …
1657 } 2064 }
1658 2065
1659 return ncur; 2066 return ncur;
1660} 2067}
1661 2068
1662static void * noinline ecb_cold 2069ecb_noinline ecb_cold
2070static void *
1663array_realloc (int elem, void *base, int *cur, int cnt) 2071array_realloc (int elem, void *base, int *cur, int cnt)
1664{ 2072{
1665 *cur = array_nextsize (elem, *cur, cnt); 2073 *cur = array_nextsize (elem, *cur, cnt);
1666 return ev_realloc (base, elem * *cur); 2074 return ev_realloc (base, elem * *cur);
1667} 2075}
1668 2076
2077#define array_needsize_noinit(base,offset,count)
2078
1669#define array_init_zero(base,count) \ 2079#define array_needsize_zerofill(base,offset,count) \
1670 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2080 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1671 2081
1672#define array_needsize(type,base,cur,cnt,init) \ 2082#define array_needsize(type,base,cur,cnt,init) \
1673 if (expect_false ((cnt) > (cur))) \ 2083 if (ecb_expect_false ((cnt) > (cur))) \
1674 { \ 2084 { \
1675 int ecb_unused ocur_ = (cur); \ 2085 ecb_unused int ocur_ = (cur); \
1676 (base) = (type *)array_realloc \ 2086 (base) = (type *)array_realloc \
1677 (sizeof (type), (base), &(cur), (cnt)); \ 2087 (sizeof (type), (base), &(cur), (cnt)); \
1678 init ((base) + (ocur_), (cur) - ocur_); \ 2088 init ((base), ocur_, ((cur) - ocur_)); \
1679 } 2089 }
1680 2090
1681#if 0 2091#if 0
1682#define array_slim(type,stem) \ 2092#define array_slim(type,stem) \
1683 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2093 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1692 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
1693 2103
1694/*****************************************************************************/ 2104/*****************************************************************************/
1695 2105
1696/* dummy callback for pending events */ 2106/* dummy callback for pending events */
1697static void noinline 2107ecb_noinline
2108static void
1698pendingcb (EV_P_ ev_prepare *w, int revents) 2109pendingcb (EV_P_ ev_prepare *w, int revents)
1699{ 2110{
1700} 2111}
1701 2112
1702void noinline 2113ecb_noinline
2114void
1703ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2115ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1704{ 2116{
1705 W w_ = (W)w; 2117 W w_ = (W)w;
1706 int pri = ABSPRI (w_); 2118 int pri = ABSPRI (w_);
1707 2119
1708 if (expect_false (w_->pending)) 2120 if (ecb_expect_false (w_->pending))
1709 pendings [pri][w_->pending - 1].events |= revents; 2121 pendings [pri][w_->pending - 1].events |= revents;
1710 else 2122 else
1711 { 2123 {
1712 w_->pending = ++pendingcnt [pri]; 2124 w_->pending = ++pendingcnt [pri];
1713 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2125 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1714 pendings [pri][w_->pending - 1].w = w_; 2126 pendings [pri][w_->pending - 1].w = w_;
1715 pendings [pri][w_->pending - 1].events = revents; 2127 pendings [pri][w_->pending - 1].events = revents;
1716 } 2128 }
1717 2129
1718 pendingpri = NUMPRI - 1; 2130 pendingpri = NUMPRI - 1;
1719} 2131}
1720 2132
1721inline_speed void 2133inline_speed void
1722feed_reverse (EV_P_ W w) 2134feed_reverse (EV_P_ W w)
1723{ 2135{
1724 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2136 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1725 rfeeds [rfeedcnt++] = w; 2137 rfeeds [rfeedcnt++] = w;
1726} 2138}
1727 2139
1728inline_size void 2140inline_size void
1729feed_reverse_done (EV_P_ int revents) 2141feed_reverse_done (EV_P_ int revents)
… …
1764inline_speed void 2176inline_speed void
1765fd_event (EV_P_ int fd, int revents) 2177fd_event (EV_P_ int fd, int revents)
1766{ 2178{
1767 ANFD *anfd = anfds + fd; 2179 ANFD *anfd = anfds + fd;
1768 2180
1769 if (expect_true (!anfd->reify)) 2181 if (ecb_expect_true (!anfd->reify))
1770 fd_event_nocheck (EV_A_ fd, revents); 2182 fd_event_nocheck (EV_A_ fd, revents);
1771} 2183}
1772 2184
1773void 2185void
1774ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2186ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1775{ 2187{
1776 if (fd >= 0 && fd < anfdmax) 2188 if (fd >= 0 && fd < anfdmax)
1777 fd_event_nocheck (EV_A_ fd, revents); 2189 fd_event_nocheck (EV_A_ fd, revents);
1778} 2190}
1779 2191
… …
1816 ev_io *w; 2228 ev_io *w;
1817 2229
1818 unsigned char o_events = anfd->events; 2230 unsigned char o_events = anfd->events;
1819 unsigned char o_reify = anfd->reify; 2231 unsigned char o_reify = anfd->reify;
1820 2232
1821 anfd->reify = 0; 2233 anfd->reify = 0;
1822 2234
1823 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2235 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1824 { 2236 {
1825 anfd->events = 0; 2237 anfd->events = 0;
1826 2238
1827 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)
1828 anfd->events |= (unsigned char)w->events; 2240 anfd->events |= (unsigned char)w->events;
… …
1837 2249
1838 fdchangecnt = 0; 2250 fdchangecnt = 0;
1839} 2251}
1840 2252
1841/* something about the given fd changed */ 2253/* something about the given fd changed */
1842inline_size void 2254inline_size
2255void
1843fd_change (EV_P_ int fd, int flags) 2256fd_change (EV_P_ int fd, int flags)
1844{ 2257{
1845 unsigned char reify = anfds [fd].reify; 2258 unsigned char reify = anfds [fd].reify;
1846 anfds [fd].reify |= flags; 2259 anfds [fd].reify |= flags;
1847 2260
1848 if (expect_true (!reify)) 2261 if (ecb_expect_true (!reify))
1849 { 2262 {
1850 ++fdchangecnt; 2263 ++fdchangecnt;
1851 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2264 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1852 fdchanges [fdchangecnt - 1] = fd; 2265 fdchanges [fdchangecnt - 1] = fd;
1853 } 2266 }
1854} 2267}
1855 2268
1856/* 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 */
1857inline_speed void ecb_cold 2270inline_speed ecb_cold void
1858fd_kill (EV_P_ int fd) 2271fd_kill (EV_P_ int fd)
1859{ 2272{
1860 ev_io *w; 2273 ev_io *w;
1861 2274
1862 while ((w = (ev_io *)anfds [fd].head)) 2275 while ((w = (ev_io *)anfds [fd].head))
… …
1865 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);
1866 } 2279 }
1867} 2280}
1868 2281
1869/* check whether the given fd is actually valid, for error recovery */ 2282/* check whether the given fd is actually valid, for error recovery */
1870inline_size int ecb_cold 2283inline_size ecb_cold int
1871fd_valid (int fd) 2284fd_valid (int fd)
1872{ 2285{
1873#ifdef _WIN32 2286#ifdef _WIN32
1874 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2287 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1875#else 2288#else
1876 return fcntl (fd, F_GETFD) != -1; 2289 return fcntl (fd, F_GETFD) != -1;
1877#endif 2290#endif
1878} 2291}
1879 2292
1880/* called on EBADF to verify fds */ 2293/* called on EBADF to verify fds */
1881static void noinline ecb_cold 2294ecb_noinline ecb_cold
2295static void
1882fd_ebadf (EV_P) 2296fd_ebadf (EV_P)
1883{ 2297{
1884 int fd; 2298 int fd;
1885 2299
1886 for (fd = 0; fd < anfdmax; ++fd) 2300 for (fd = 0; fd < anfdmax; ++fd)
… …
1888 if (!fd_valid (fd) && errno == EBADF) 2302 if (!fd_valid (fd) && errno == EBADF)
1889 fd_kill (EV_A_ fd); 2303 fd_kill (EV_A_ fd);
1890} 2304}
1891 2305
1892/* 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 */
1893static void noinline ecb_cold 2307ecb_noinline ecb_cold
2308static void
1894fd_enomem (EV_P) 2309fd_enomem (EV_P)
1895{ 2310{
1896 int fd; 2311 int fd;
1897 2312
1898 for (fd = anfdmax; fd--; ) 2313 for (fd = anfdmax; fd--; )
… …
1902 break; 2317 break;
1903 } 2318 }
1904} 2319}
1905 2320
1906/* 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 */
1907static void noinline 2322ecb_noinline
2323static void
1908fd_rearm_all (EV_P) 2324fd_rearm_all (EV_P)
1909{ 2325{
1910 int fd; 2326 int fd;
1911 2327
1912 for (fd = 0; fd < anfdmax; ++fd) 2328 for (fd = 0; fd < anfdmax; ++fd)
… …
1965 ev_tstamp minat; 2381 ev_tstamp minat;
1966 ANHE *minpos; 2382 ANHE *minpos;
1967 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2383 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1968 2384
1969 /* find minimum child */ 2385 /* find minimum child */
1970 if (expect_true (pos + DHEAP - 1 < E)) 2386 if (ecb_expect_true (pos + DHEAP - 1 < E))
1971 { 2387 {
1972 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2388 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1973 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));
1974 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));
1975 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));
… …
2093 2509
2094/*****************************************************************************/ 2510/*****************************************************************************/
2095 2511
2096#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2512#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2097 2513
2098static void noinline ecb_cold 2514ecb_noinline ecb_cold
2515static void
2099evpipe_init (EV_P) 2516evpipe_init (EV_P)
2100{ 2517{
2101 if (!ev_is_active (&pipe_w)) 2518 if (!ev_is_active (&pipe_w))
2102 { 2519 {
2103 int fds [2]; 2520 int fds [2];
… …
2143inline_speed void 2560inline_speed void
2144evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2561evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2145{ 2562{
2146 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 */
2147 2564
2148 if (expect_true (*flag)) 2565 if (ecb_expect_true (*flag))
2149 return; 2566 return;
2150 2567
2151 *flag = 1; 2568 *flag = 1;
2152 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 */
2153 2570
… …
2174#endif 2591#endif
2175 { 2592 {
2176#ifdef _WIN32 2593#ifdef _WIN32
2177 WSABUF buf; 2594 WSABUF buf;
2178 DWORD sent; 2595 DWORD sent;
2179 buf.buf = &buf; 2596 buf.buf = (char *)&buf;
2180 buf.len = 1; 2597 buf.len = 1;
2181 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);
2182#else 2599#else
2183 write (evpipe [1], &(evpipe [1]), 1); 2600 write (evpipe [1], &(evpipe [1]), 1);
2184#endif 2601#endif
… …
2230 sig_pending = 0; 2647 sig_pending = 0;
2231 2648
2232 ECB_MEMORY_FENCE; 2649 ECB_MEMORY_FENCE;
2233 2650
2234 for (i = EV_NSIG - 1; i--; ) 2651 for (i = EV_NSIG - 1; i--; )
2235 if (expect_false (signals [i].pending)) 2652 if (ecb_expect_false (signals [i].pending))
2236 ev_feed_signal_event (EV_A_ i + 1); 2653 ev_feed_signal_event (EV_A_ i + 1);
2237 } 2654 }
2238#endif 2655#endif
2239 2656
2240#if EV_ASYNC_ENABLE 2657#if EV_ASYNC_ENABLE
… …
2256} 2673}
2257 2674
2258/*****************************************************************************/ 2675/*****************************************************************************/
2259 2676
2260void 2677void
2261ev_feed_signal (int signum) EV_THROW 2678ev_feed_signal (int signum) EV_NOEXCEPT
2262{ 2679{
2263#if EV_MULTIPLICITY 2680#if EV_MULTIPLICITY
2264 EV_P; 2681 EV_P;
2265 ECB_MEMORY_FENCE_ACQUIRE; 2682 ECB_MEMORY_FENCE_ACQUIRE;
2266 EV_A = signals [signum - 1].loop; 2683 EV_A = signals [signum - 1].loop;
… …
2281#endif 2698#endif
2282 2699
2283 ev_feed_signal (signum); 2700 ev_feed_signal (signum);
2284} 2701}
2285 2702
2286void noinline 2703ecb_noinline
2704void
2287ev_feed_signal_event (EV_P_ int signum) EV_THROW 2705ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2288{ 2706{
2289 WL w; 2707 WL w;
2290 2708
2291 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2709 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2292 return; 2710 return;
2293 2711
2294 --signum; 2712 --signum;
2295 2713
2296#if EV_MULTIPLICITY 2714#if EV_MULTIPLICITY
2297 /* 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 */
2298 /* or, likely more useful, feeding a signal nobody is waiting for */ 2716 /* or, likely more useful, feeding a signal nobody is waiting for */
2299 2717
2300 if (expect_false (signals [signum].loop != EV_A)) 2718 if (ecb_expect_false (signals [signum].loop != EV_A))
2301 return; 2719 return;
2302#endif 2720#endif
2303 2721
2304 signals [signum].pending = 0; 2722 signals [signum].pending = 0;
2305 ECB_MEMORY_FENCE_RELEASE; 2723 ECB_MEMORY_FENCE_RELEASE;
… …
2401# include "ev_kqueue.c" 2819# include "ev_kqueue.c"
2402#endif 2820#endif
2403#if EV_USE_EPOLL 2821#if EV_USE_EPOLL
2404# include "ev_epoll.c" 2822# include "ev_epoll.c"
2405#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
2406#if EV_USE_POLL 2830#if EV_USE_POLL
2407# include "ev_poll.c" 2831# include "ev_poll.c"
2408#endif 2832#endif
2409#if EV_USE_SELECT 2833#if EV_USE_SELECT
2410# include "ev_select.c" 2834# include "ev_select.c"
2411#endif 2835#endif
2412 2836
2413int ecb_cold 2837ecb_cold int
2414ev_version_major (void) EV_THROW 2838ev_version_major (void) EV_NOEXCEPT
2415{ 2839{
2416 return EV_VERSION_MAJOR; 2840 return EV_VERSION_MAJOR;
2417} 2841}
2418 2842
2419int ecb_cold 2843ecb_cold int
2420ev_version_minor (void) EV_THROW 2844ev_version_minor (void) EV_NOEXCEPT
2421{ 2845{
2422 return EV_VERSION_MINOR; 2846 return EV_VERSION_MINOR;
2423} 2847}
2424 2848
2425/* 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 */
2426int inline_size ecb_cold 2850inline_size ecb_cold int
2427enable_secure (void) 2851enable_secure (void)
2428{ 2852{
2429#ifdef _WIN32 2853#ifdef _WIN32
2430 return 0; 2854 return 0;
2431#else 2855#else
2432 return getuid () != geteuid () 2856 return getuid () != geteuid ()
2433 || getgid () != getegid (); 2857 || getgid () != getegid ();
2434#endif 2858#endif
2435} 2859}
2436 2860
2437unsigned int ecb_cold 2861ecb_cold
2862unsigned int
2438ev_supported_backends (void) EV_THROW 2863ev_supported_backends (void) EV_NOEXCEPT
2439{ 2864{
2440 unsigned int flags = 0; 2865 unsigned int flags = 0;
2441 2866
2442 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2867 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2443 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2868 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2444 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;
2445 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2872 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2446 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2873 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2447 2874
2448 return flags; 2875 return flags;
2449} 2876}
2450 2877
2451unsigned int ecb_cold 2878ecb_cold
2879unsigned int
2452ev_recommended_backends (void) EV_THROW 2880ev_recommended_backends (void) EV_NOEXCEPT
2453{ 2881{
2454 unsigned int flags = ev_supported_backends (); 2882 unsigned int flags = ev_supported_backends ();
2455 2883
2456#ifndef __NetBSD__ 2884#ifndef __NetBSD__
2457 /* kqueue is borked on everything but netbsd apparently */ 2885 /* kqueue is borked on everything but netbsd apparently */
… …
2465#endif 2893#endif
2466#ifdef __FreeBSD__ 2894#ifdef __FreeBSD__
2467 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) */
2468#endif 2896#endif
2469 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
2470 return flags; 2907 return flags;
2471} 2908}
2472 2909
2473unsigned int ecb_cold 2910ecb_cold
2911unsigned int
2474ev_embeddable_backends (void) EV_THROW 2912ev_embeddable_backends (void) EV_NOEXCEPT
2475{ 2913{
2476 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2914 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2477 2915
2478 /* 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 */
2479 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 */
… …
2481 2919
2482 return flags; 2920 return flags;
2483} 2921}
2484 2922
2485unsigned int 2923unsigned int
2486ev_backend (EV_P) EV_THROW 2924ev_backend (EV_P) EV_NOEXCEPT
2487{ 2925{
2488 return backend; 2926 return backend;
2489} 2927}
2490 2928
2491#if EV_FEATURE_API 2929#if EV_FEATURE_API
2492unsigned int 2930unsigned int
2493ev_iteration (EV_P) EV_THROW 2931ev_iteration (EV_P) EV_NOEXCEPT
2494{ 2932{
2495 return loop_count; 2933 return loop_count;
2496} 2934}
2497 2935
2498unsigned int 2936unsigned int
2499ev_depth (EV_P) EV_THROW 2937ev_depth (EV_P) EV_NOEXCEPT
2500{ 2938{
2501 return loop_depth; 2939 return loop_depth;
2502} 2940}
2503 2941
2504void 2942void
2505ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2943ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2506{ 2944{
2507 io_blocktime = interval; 2945 io_blocktime = interval;
2508} 2946}
2509 2947
2510void 2948void
2511ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2949ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2512{ 2950{
2513 timeout_blocktime = interval; 2951 timeout_blocktime = interval;
2514} 2952}
2515 2953
2516void 2954void
2517ev_set_userdata (EV_P_ void *data) EV_THROW 2955ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2518{ 2956{
2519 userdata = data; 2957 userdata = data;
2520} 2958}
2521 2959
2522void * 2960void *
2523ev_userdata (EV_P) EV_THROW 2961ev_userdata (EV_P) EV_NOEXCEPT
2524{ 2962{
2525 return userdata; 2963 return userdata;
2526} 2964}
2527 2965
2528void 2966void
2529ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2967ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2530{ 2968{
2531 invoke_cb = invoke_pending_cb; 2969 invoke_cb = invoke_pending_cb;
2532} 2970}
2533 2971
2534void 2972void
2535ev_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
2536{ 2974{
2537 release_cb = release; 2975 release_cb = release;
2538 acquire_cb = acquire; 2976 acquire_cb = acquire;
2539} 2977}
2540#endif 2978#endif
2541 2979
2542/* initialise a loop structure, must be zero-initialised */ 2980/* initialise a loop structure, must be zero-initialised */
2543static void noinline ecb_cold 2981ecb_noinline ecb_cold
2982static void
2544loop_init (EV_P_ unsigned int flags) EV_THROW 2983loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2545{ 2984{
2546 if (!backend) 2985 if (!backend)
2547 { 2986 {
2548 origflags = flags; 2987 origflags = flags;
2549 2988
… …
2607 3046
2608 if (!(flags & EVBACKEND_MASK)) 3047 if (!(flags & EVBACKEND_MASK))
2609 flags |= ev_recommended_backends (); 3048 flags |= ev_recommended_backends ();
2610 3049
2611#if EV_USE_IOCP 3050#if EV_USE_IOCP
2612 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3051 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2613#endif 3052#endif
2614#if EV_USE_PORT 3053#if EV_USE_PORT
2615 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3054 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2616#endif 3055#endif
2617#if EV_USE_KQUEUE 3056#if EV_USE_KQUEUE
2618 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);
2619#endif 3064#endif
2620#if EV_USE_EPOLL 3065#if EV_USE_EPOLL
2621 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3066 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2622#endif 3067#endif
2623#if EV_USE_POLL 3068#if EV_USE_POLL
2624 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3069 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2625#endif 3070#endif
2626#if EV_USE_SELECT 3071#if EV_USE_SELECT
2627 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3072 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2628#endif 3073#endif
2629 3074
2630 ev_prepare_init (&pending_w, pendingcb); 3075 ev_prepare_init (&pending_w, pendingcb);
2631 3076
2632#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3077#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2635#endif 3080#endif
2636 } 3081 }
2637} 3082}
2638 3083
2639/* free up a loop structure */ 3084/* free up a loop structure */
2640void ecb_cold 3085ecb_cold
3086void
2641ev_loop_destroy (EV_P) 3087ev_loop_destroy (EV_P)
2642{ 3088{
2643 int i; 3089 int i;
2644 3090
2645#if EV_MULTIPLICITY 3091#if EV_MULTIPLICITY
… …
2648 return; 3094 return;
2649#endif 3095#endif
2650 3096
2651#if EV_CLEANUP_ENABLE 3097#if EV_CLEANUP_ENABLE
2652 /* queue cleanup watchers (and execute them) */ 3098 /* queue cleanup watchers (and execute them) */
2653 if (expect_false (cleanupcnt)) 3099 if (ecb_expect_false (cleanupcnt))
2654 { 3100 {
2655 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3101 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2656 EV_INVOKE_PENDING; 3102 EV_INVOKE_PENDING;
2657 } 3103 }
2658#endif 3104#endif
… …
2686 3132
2687 if (backend_fd >= 0) 3133 if (backend_fd >= 0)
2688 close (backend_fd); 3134 close (backend_fd);
2689 3135
2690#if EV_USE_IOCP 3136#if EV_USE_IOCP
2691 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3137 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2692#endif 3138#endif
2693#if EV_USE_PORT 3139#if EV_USE_PORT
2694 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3140 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2695#endif 3141#endif
2696#if EV_USE_KQUEUE 3142#if EV_USE_KQUEUE
2697 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);
2698#endif 3150#endif
2699#if EV_USE_EPOLL 3151#if EV_USE_EPOLL
2700 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3152 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2701#endif 3153#endif
2702#if EV_USE_POLL 3154#if EV_USE_POLL
2703 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3155 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2704#endif 3156#endif
2705#if EV_USE_SELECT 3157#if EV_USE_SELECT
2706 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3158 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2707#endif 3159#endif
2708 3160
2709 for (i = NUMPRI; i--; ) 3161 for (i = NUMPRI; i--; )
2710 { 3162 {
2711 array_free (pending, [i]); 3163 array_free (pending, [i]);
… …
2753 3205
2754inline_size void 3206inline_size void
2755loop_fork (EV_P) 3207loop_fork (EV_P)
2756{ 3208{
2757#if EV_USE_PORT 3209#if EV_USE_PORT
2758 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3210 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2759#endif 3211#endif
2760#if EV_USE_KQUEUE 3212#if EV_USE_KQUEUE
2761 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);
2762#endif 3220#endif
2763#if EV_USE_EPOLL 3221#if EV_USE_EPOLL
2764 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3222 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2765#endif 3223#endif
2766#if EV_USE_INOTIFY 3224#if EV_USE_INOTIFY
2767 infy_fork (EV_A); 3225 infy_fork (EV_A);
2768#endif 3226#endif
2769 3227
2770#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3228#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2771 if (ev_is_active (&pipe_w)) 3229 if (ev_is_active (&pipe_w) && postfork != 2)
2772 { 3230 {
2773 /* 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 */
2774 3232
2775 ev_ref (EV_A); 3233 ev_ref (EV_A);
2776 ev_io_stop (EV_A_ &pipe_w); 3234 ev_io_stop (EV_A_ &pipe_w);
… …
2787 postfork = 0; 3245 postfork = 0;
2788} 3246}
2789 3247
2790#if EV_MULTIPLICITY 3248#if EV_MULTIPLICITY
2791 3249
3250ecb_cold
2792struct ev_loop * ecb_cold 3251struct ev_loop *
2793ev_loop_new (unsigned int flags) EV_THROW 3252ev_loop_new (unsigned int flags) EV_NOEXCEPT
2794{ 3253{
2795 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3254 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2796 3255
2797 memset (EV_A, 0, sizeof (struct ev_loop)); 3256 memset (EV_A, 0, sizeof (struct ev_loop));
2798 loop_init (EV_A_ flags); 3257 loop_init (EV_A_ flags);
… …
2805} 3264}
2806 3265
2807#endif /* multiplicity */ 3266#endif /* multiplicity */
2808 3267
2809#if EV_VERIFY 3268#if EV_VERIFY
2810static void noinline ecb_cold 3269ecb_noinline ecb_cold
3270static void
2811verify_watcher (EV_P_ W w) 3271verify_watcher (EV_P_ W w)
2812{ 3272{
2813 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));
2814 3274
2815 if (w->pending) 3275 if (w->pending)
2816 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));
2817} 3277}
2818 3278
2819static void noinline ecb_cold 3279ecb_noinline ecb_cold
3280static void
2820verify_heap (EV_P_ ANHE *heap, int N) 3281verify_heap (EV_P_ ANHE *heap, int N)
2821{ 3282{
2822 int i; 3283 int i;
2823 3284
2824 for (i = HEAP0; i < N + HEAP0; ++i) 3285 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2829 3290
2830 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3291 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2831 } 3292 }
2832} 3293}
2833 3294
2834static void noinline ecb_cold 3295ecb_noinline ecb_cold
3296static void
2835array_verify (EV_P_ W *ws, int cnt) 3297array_verify (EV_P_ W *ws, int cnt)
2836{ 3298{
2837 while (cnt--) 3299 while (cnt--)
2838 { 3300 {
2839 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3301 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2842} 3304}
2843#endif 3305#endif
2844 3306
2845#if EV_FEATURE_API 3307#if EV_FEATURE_API
2846void ecb_cold 3308void ecb_cold
2847ev_verify (EV_P) EV_THROW 3309ev_verify (EV_P) EV_NOEXCEPT
2848{ 3310{
2849#if EV_VERIFY 3311#if EV_VERIFY
2850 int i; 3312 int i;
2851 WL w, w2; 3313 WL w, w2;
2852 3314
… …
2928#endif 3390#endif
2929} 3391}
2930#endif 3392#endif
2931 3393
2932#if EV_MULTIPLICITY 3394#if EV_MULTIPLICITY
3395ecb_cold
2933struct ev_loop * ecb_cold 3396struct ev_loop *
2934#else 3397#else
2935int 3398int
2936#endif 3399#endif
2937ev_default_loop (unsigned int flags) EV_THROW 3400ev_default_loop (unsigned int flags) EV_NOEXCEPT
2938{ 3401{
2939 if (!ev_default_loop_ptr) 3402 if (!ev_default_loop_ptr)
2940 { 3403 {
2941#if EV_MULTIPLICITY 3404#if EV_MULTIPLICITY
2942 EV_P = ev_default_loop_ptr = &default_loop_struct; 3405 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2961 3424
2962 return ev_default_loop_ptr; 3425 return ev_default_loop_ptr;
2963} 3426}
2964 3427
2965void 3428void
2966ev_loop_fork (EV_P) EV_THROW 3429ev_loop_fork (EV_P) EV_NOEXCEPT
2967{ 3430{
2968 postfork = 1; 3431 postfork = 1;
2969} 3432}
2970 3433
2971/*****************************************************************************/ 3434/*****************************************************************************/
… …
2975{ 3438{
2976 EV_CB_INVOKE ((W)w, revents); 3439 EV_CB_INVOKE ((W)w, revents);
2977} 3440}
2978 3441
2979unsigned int 3442unsigned int
2980ev_pending_count (EV_P) EV_THROW 3443ev_pending_count (EV_P) EV_NOEXCEPT
2981{ 3444{
2982 int pri; 3445 int pri;
2983 unsigned int count = 0; 3446 unsigned int count = 0;
2984 3447
2985 for (pri = NUMPRI; pri--; ) 3448 for (pri = NUMPRI; pri--; )
2986 count += pendingcnt [pri]; 3449 count += pendingcnt [pri];
2987 3450
2988 return count; 3451 return count;
2989} 3452}
2990 3453
2991void noinline 3454ecb_noinline
3455void
2992ev_invoke_pending (EV_P) 3456ev_invoke_pending (EV_P)
2993{ 3457{
2994 pendingpri = NUMPRI; 3458 pendingpri = NUMPRI;
2995 3459
2996 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3460 do
2997 { 3461 {
2998 --pendingpri; 3462 --pendingpri;
2999 3463
3464 /* pendingpri possibly gets modified in the inner loop */
3000 while (pendingcnt [pendingpri]) 3465 while (pendingcnt [pendingpri])
3001 { 3466 {
3002 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3467 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3003 3468
3004 p->w->pending = 0; 3469 p->w->pending = 0;
3005 EV_CB_INVOKE (p->w, p->events); 3470 EV_CB_INVOKE (p->w, p->events);
3006 EV_FREQUENT_CHECK; 3471 EV_FREQUENT_CHECK;
3007 } 3472 }
3008 } 3473 }
3474 while (pendingpri);
3009} 3475}
3010 3476
3011#if EV_IDLE_ENABLE 3477#if EV_IDLE_ENABLE
3012/* make idle watchers pending. this handles the "call-idle */ 3478/* make idle watchers pending. this handles the "call-idle */
3013/* only when higher priorities are idle" logic */ 3479/* only when higher priorities are idle" logic */
3014inline_size void 3480inline_size void
3015idle_reify (EV_P) 3481idle_reify (EV_P)
3016{ 3482{
3017 if (expect_false (idleall)) 3483 if (ecb_expect_false (idleall))
3018 { 3484 {
3019 int pri; 3485 int pri;
3020 3486
3021 for (pri = NUMPRI; pri--; ) 3487 for (pri = NUMPRI; pri--; )
3022 { 3488 {
… …
3071 } 3537 }
3072} 3538}
3073 3539
3074#if EV_PERIODIC_ENABLE 3540#if EV_PERIODIC_ENABLE
3075 3541
3076static void noinline 3542ecb_noinline
3543static void
3077periodic_recalc (EV_P_ ev_periodic *w) 3544periodic_recalc (EV_P_ ev_periodic *w)
3078{ 3545{
3079 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3546 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3080 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);
3081 3548
… …
3083 while (at <= ev_rt_now) 3550 while (at <= ev_rt_now)
3084 { 3551 {
3085 ev_tstamp nat = at + w->interval; 3552 ev_tstamp nat = at + w->interval;
3086 3553
3087 /* when resolution fails us, we use ev_rt_now */ 3554 /* when resolution fails us, we use ev_rt_now */
3088 if (expect_false (nat == at)) 3555 if (ecb_expect_false (nat == at))
3089 { 3556 {
3090 at = ev_rt_now; 3557 at = ev_rt_now;
3091 break; 3558 break;
3092 } 3559 }
3093 3560
… …
3139 } 3606 }
3140} 3607}
3141 3608
3142/* simply recalculate all periodics */ 3609/* simply recalculate all periodics */
3143/* 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? */
3144static void noinline ecb_cold 3611ecb_noinline ecb_cold
3612static void
3145periodics_reschedule (EV_P) 3613periodics_reschedule (EV_P)
3146{ 3614{
3147 int i; 3615 int i;
3148 3616
3149 /* adjust periodics after time jump */ 3617 /* adjust periodics after time jump */
… …
3162 reheap (periodics, periodiccnt); 3630 reheap (periodics, periodiccnt);
3163} 3631}
3164#endif 3632#endif
3165 3633
3166/* adjust all timers by a given offset */ 3634/* adjust all timers by a given offset */
3167static void noinline ecb_cold 3635ecb_noinline ecb_cold
3636static void
3168timers_reschedule (EV_P_ ev_tstamp adjust) 3637timers_reschedule (EV_P_ ev_tstamp adjust)
3169{ 3638{
3170 int i; 3639 int i;
3171 3640
3172 for (i = 0; i < timercnt; ++i) 3641 for (i = 0; i < timercnt; ++i)
… …
3181/* also detect if there was a timejump, and act accordingly */ 3650/* also detect if there was a timejump, and act accordingly */
3182inline_speed void 3651inline_speed void
3183time_update (EV_P_ ev_tstamp max_block) 3652time_update (EV_P_ ev_tstamp max_block)
3184{ 3653{
3185#if EV_USE_MONOTONIC 3654#if EV_USE_MONOTONIC
3186 if (expect_true (have_monotonic)) 3655 if (ecb_expect_true (have_monotonic))
3187 { 3656 {
3188 int i; 3657 int i;
3189 ev_tstamp odiff = rtmn_diff; 3658 ev_tstamp odiff = rtmn_diff;
3190 3659
3191 mn_now = get_clock (); 3660 mn_now = get_clock ();
3192 3661
3193 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3662 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3194 /* interpolate in the meantime */ 3663 /* interpolate in the meantime */
3195 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3664 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3196 { 3665 {
3197 ev_rt_now = rtmn_diff + mn_now; 3666 ev_rt_now = rtmn_diff + mn_now;
3198 return; 3667 return;
3199 } 3668 }
3200 3669
… …
3214 ev_tstamp diff; 3683 ev_tstamp diff;
3215 rtmn_diff = ev_rt_now - mn_now; 3684 rtmn_diff = ev_rt_now - mn_now;
3216 3685
3217 diff = odiff - rtmn_diff; 3686 diff = odiff - rtmn_diff;
3218 3687
3219 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3688 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3220 return; /* all is well */ 3689 return; /* all is well */
3221 3690
3222 ev_rt_now = ev_time (); 3691 ev_rt_now = ev_time ();
3223 mn_now = get_clock (); 3692 mn_now = get_clock ();
3224 now_floor = mn_now; 3693 now_floor = mn_now;
… …
3233 else 3702 else
3234#endif 3703#endif
3235 { 3704 {
3236 ev_rt_now = ev_time (); 3705 ev_rt_now = ev_time ();
3237 3706
3238 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))
3239 { 3708 {
3240 /* 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 */
3241 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3710 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3242#if EV_PERIODIC_ENABLE 3711#if EV_PERIODIC_ENABLE
3243 periodics_reschedule (EV_A); 3712 periodics_reschedule (EV_A);
… …
3266#if EV_VERIFY >= 2 3735#if EV_VERIFY >= 2
3267 ev_verify (EV_A); 3736 ev_verify (EV_A);
3268#endif 3737#endif
3269 3738
3270#ifndef _WIN32 3739#ifndef _WIN32
3271 if (expect_false (curpid)) /* penalise the forking check even more */ 3740 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3272 if (expect_false (getpid () != curpid)) 3741 if (ecb_expect_false (getpid () != curpid))
3273 { 3742 {
3274 curpid = getpid (); 3743 curpid = getpid ();
3275 postfork = 1; 3744 postfork = 1;
3276 } 3745 }
3277#endif 3746#endif
3278 3747
3279#if EV_FORK_ENABLE 3748#if EV_FORK_ENABLE
3280 /* we might have forked, so queue fork handlers */ 3749 /* we might have forked, so queue fork handlers */
3281 if (expect_false (postfork)) 3750 if (ecb_expect_false (postfork))
3282 if (forkcnt) 3751 if (forkcnt)
3283 { 3752 {
3284 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3753 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3285 EV_INVOKE_PENDING; 3754 EV_INVOKE_PENDING;
3286 } 3755 }
3287#endif 3756#endif
3288 3757
3289#if EV_PREPARE_ENABLE 3758#if EV_PREPARE_ENABLE
3290 /* queue prepare watchers (and execute them) */ 3759 /* queue prepare watchers (and execute them) */
3291 if (expect_false (preparecnt)) 3760 if (ecb_expect_false (preparecnt))
3292 { 3761 {
3293 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3762 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3294 EV_INVOKE_PENDING; 3763 EV_INVOKE_PENDING;
3295 } 3764 }
3296#endif 3765#endif
3297 3766
3298 if (expect_false (loop_done)) 3767 if (ecb_expect_false (loop_done))
3299 break; 3768 break;
3300 3769
3301 /* we might have forked, so reify kernel state if necessary */ 3770 /* we might have forked, so reify kernel state if necessary */
3302 if (expect_false (postfork)) 3771 if (ecb_expect_false (postfork))
3303 loop_fork (EV_A); 3772 loop_fork (EV_A);
3304 3773
3305 /* update fd-related kernel structures */ 3774 /* update fd-related kernel structures */
3306 fd_reify (EV_A); 3775 fd_reify (EV_A);
3307 3776
… …
3319 /* from now on, we want a pipe-wake-up */ 3788 /* from now on, we want a pipe-wake-up */
3320 pipe_write_wanted = 1; 3789 pipe_write_wanted = 1;
3321 3790
3322 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 */
3323 3792
3324 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3793 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3325 { 3794 {
3326 waittime = MAX_BLOCKTIME; 3795 waittime = MAX_BLOCKTIME;
3327 3796
3328 if (timercnt) 3797 if (timercnt)
3329 { 3798 {
… …
3338 if (waittime > to) waittime = to; 3807 if (waittime > to) waittime = to;
3339 } 3808 }
3340#endif 3809#endif
3341 3810
3342 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3811 /* don't let timeouts decrease the waittime below timeout_blocktime */
3343 if (expect_false (waittime < timeout_blocktime)) 3812 if (ecb_expect_false (waittime < timeout_blocktime))
3344 waittime = timeout_blocktime; 3813 waittime = timeout_blocktime;
3345 3814
3346 /* 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 */
3347 /* to pass a minimum nonzero value to the backend */ 3816 /* to pass a minimum nonzero value to the backend */
3348 if (expect_false (waittime < backend_mintime)) 3817 if (ecb_expect_false (waittime < backend_mintime))
3349 waittime = backend_mintime; 3818 waittime = backend_mintime;
3350 3819
3351 /* extra check because io_blocktime is commonly 0 */ 3820 /* extra check because io_blocktime is commonly 0 */
3352 if (expect_false (io_blocktime)) 3821 if (ecb_expect_false (io_blocktime))
3353 { 3822 {
3354 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3823 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3355 3824
3356 if (sleeptime > waittime - backend_mintime) 3825 if (sleeptime > waittime - backend_mintime)
3357 sleeptime = waittime - backend_mintime; 3826 sleeptime = waittime - backend_mintime;
3358 3827
3359 if (expect_true (sleeptime > 0.)) 3828 if (ecb_expect_true (sleeptime > 0.))
3360 { 3829 {
3361 ev_sleep (sleeptime); 3830 ev_sleep (sleeptime);
3362 waittime -= sleeptime; 3831 waittime -= sleeptime;
3363 } 3832 }
3364 } 3833 }
… …
3378 { 3847 {
3379 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)));
3380 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3849 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3381 } 3850 }
3382 3851
3383
3384 /* update ev_rt_now, do magic */ 3852 /* update ev_rt_now, do magic */
3385 time_update (EV_A_ waittime + sleeptime); 3853 time_update (EV_A_ waittime + sleeptime);
3386 } 3854 }
3387 3855
3388 /* queue pending timers and reschedule them */ 3856 /* queue pending timers and reschedule them */
… …
3396 idle_reify (EV_A); 3864 idle_reify (EV_A);
3397#endif 3865#endif
3398 3866
3399#if EV_CHECK_ENABLE 3867#if EV_CHECK_ENABLE
3400 /* queue check watchers, to be executed first */ 3868 /* queue check watchers, to be executed first */
3401 if (expect_false (checkcnt)) 3869 if (ecb_expect_false (checkcnt))
3402 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3870 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3403#endif 3871#endif
3404 3872
3405 EV_INVOKE_PENDING; 3873 EV_INVOKE_PENDING;
3406 } 3874 }
3407 while (expect_true ( 3875 while (ecb_expect_true (
3408 activecnt 3876 activecnt
3409 && !loop_done 3877 && !loop_done
3410 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3878 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3411 )); 3879 ));
3412 3880
… …
3419 3887
3420 return activecnt; 3888 return activecnt;
3421} 3889}
3422 3890
3423void 3891void
3424ev_break (EV_P_ int how) EV_THROW 3892ev_break (EV_P_ int how) EV_NOEXCEPT
3425{ 3893{
3426 loop_done = how; 3894 loop_done = how;
3427} 3895}
3428 3896
3429void 3897void
3430ev_ref (EV_P) EV_THROW 3898ev_ref (EV_P) EV_NOEXCEPT
3431{ 3899{
3432 ++activecnt; 3900 ++activecnt;
3433} 3901}
3434 3902
3435void 3903void
3436ev_unref (EV_P) EV_THROW 3904ev_unref (EV_P) EV_NOEXCEPT
3437{ 3905{
3438 --activecnt; 3906 --activecnt;
3439} 3907}
3440 3908
3441void 3909void
3442ev_now_update (EV_P) EV_THROW 3910ev_now_update (EV_P) EV_NOEXCEPT
3443{ 3911{
3444 time_update (EV_A_ 1e100); 3912 time_update (EV_A_ 1e100);
3445} 3913}
3446 3914
3447void 3915void
3448ev_suspend (EV_P) EV_THROW 3916ev_suspend (EV_P) EV_NOEXCEPT
3449{ 3917{
3450 ev_now_update (EV_A); 3918 ev_now_update (EV_A);
3451} 3919}
3452 3920
3453void 3921void
3454ev_resume (EV_P) EV_THROW 3922ev_resume (EV_P) EV_NOEXCEPT
3455{ 3923{
3456 ev_tstamp mn_prev = mn_now; 3924 ev_tstamp mn_prev = mn_now;
3457 3925
3458 ev_now_update (EV_A); 3926 ev_now_update (EV_A);
3459 timers_reschedule (EV_A_ mn_now - mn_prev); 3927 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3476inline_size void 3944inline_size void
3477wlist_del (WL *head, WL elem) 3945wlist_del (WL *head, WL elem)
3478{ 3946{
3479 while (*head) 3947 while (*head)
3480 { 3948 {
3481 if (expect_true (*head == elem)) 3949 if (ecb_expect_true (*head == elem))
3482 { 3950 {
3483 *head = elem->next; 3951 *head = elem->next;
3484 break; 3952 break;
3485 } 3953 }
3486 3954
… …
3498 w->pending = 0; 3966 w->pending = 0;
3499 } 3967 }
3500} 3968}
3501 3969
3502int 3970int
3503ev_clear_pending (EV_P_ void *w) EV_THROW 3971ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3504{ 3972{
3505 W w_ = (W)w; 3973 W w_ = (W)w;
3506 int pending = w_->pending; 3974 int pending = w_->pending;
3507 3975
3508 if (expect_true (pending)) 3976 if (ecb_expect_true (pending))
3509 { 3977 {
3510 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 3978 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3511 p->w = (W)&pending_w; 3979 p->w = (W)&pending_w;
3512 w_->pending = 0; 3980 w_->pending = 0;
3513 return p->events; 3981 return p->events;
… …
3540 w->active = 0; 4008 w->active = 0;
3541} 4009}
3542 4010
3543/*****************************************************************************/ 4011/*****************************************************************************/
3544 4012
3545void noinline 4013ecb_noinline
4014void
3546ev_io_start (EV_P_ ev_io *w) EV_THROW 4015ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3547{ 4016{
3548 int fd = w->fd; 4017 int fd = w->fd;
3549 4018
3550 if (expect_false (ev_is_active (w))) 4019 if (ecb_expect_false (ev_is_active (w)))
3551 return; 4020 return;
3552 4021
3553 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4022 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3554 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))));
3555 4024
4025#if EV_VERIFY >= 2
4026 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4027#endif
3556 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
3557 4029
3558 ev_start (EV_A_ (W)w, 1); 4030 ev_start (EV_A_ (W)w, 1);
3559 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4031 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3560 wlist_add (&anfds[fd].head, (WL)w); 4032 wlist_add (&anfds[fd].head, (WL)w);
3561 4033
3562 /* common bug, apparently */ 4034 /* common bug, apparently */
3563 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));
3564 4036
… …
3566 w->events &= ~EV__IOFDSET; 4038 w->events &= ~EV__IOFDSET;
3567 4039
3568 EV_FREQUENT_CHECK; 4040 EV_FREQUENT_CHECK;
3569} 4041}
3570 4042
3571void noinline 4043ecb_noinline
4044void
3572ev_io_stop (EV_P_ ev_io *w) EV_THROW 4045ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3573{ 4046{
3574 clear_pending (EV_A_ (W)w); 4047 clear_pending (EV_A_ (W)w);
3575 if (expect_false (!ev_is_active (w))) 4048 if (ecb_expect_false (!ev_is_active (w)))
3576 return; 4049 return;
3577 4050
3578 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));
3579 4052
4053#if EV_VERIFY >= 2
4054 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4055#endif
3580 EV_FREQUENT_CHECK; 4056 EV_FREQUENT_CHECK;
3581 4057
3582 wlist_del (&anfds[w->fd].head, (WL)w); 4058 wlist_del (&anfds[w->fd].head, (WL)w);
3583 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
3584 4060
3585 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4061 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3586 4062
3587 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3588} 4064}
3589 4065
3590void noinline 4066ecb_noinline
4067void
3591ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4068ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3592{ 4069{
3593 if (expect_false (ev_is_active (w))) 4070 if (ecb_expect_false (ev_is_active (w)))
3594 return; 4071 return;
3595 4072
3596 ev_at (w) += mn_now; 4073 ev_at (w) += mn_now;
3597 4074
3598 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.));
3599 4076
3600 EV_FREQUENT_CHECK; 4077 EV_FREQUENT_CHECK;
3601 4078
3602 ++timercnt; 4079 ++timercnt;
3603 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4080 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3604 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4081 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3605 ANHE_w (timers [ev_active (w)]) = (WT)w; 4082 ANHE_w (timers [ev_active (w)]) = (WT)w;
3606 ANHE_at_cache (timers [ev_active (w)]); 4083 ANHE_at_cache (timers [ev_active (w)]);
3607 upheap (timers, ev_active (w)); 4084 upheap (timers, ev_active (w));
3608 4085
3609 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
3610 4087
3611 /*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));*/
3612} 4089}
3613 4090
3614void noinline 4091ecb_noinline
4092void
3615ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4093ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3616{ 4094{
3617 clear_pending (EV_A_ (W)w); 4095 clear_pending (EV_A_ (W)w);
3618 if (expect_false (!ev_is_active (w))) 4096 if (ecb_expect_false (!ev_is_active (w)))
3619 return; 4097 return;
3620 4098
3621 EV_FREQUENT_CHECK; 4099 EV_FREQUENT_CHECK;
3622 4100
3623 { 4101 {
… …
3625 4103
3626 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));
3627 4105
3628 --timercnt; 4106 --timercnt;
3629 4107
3630 if (expect_true (active < timercnt + HEAP0)) 4108 if (ecb_expect_true (active < timercnt + HEAP0))
3631 { 4109 {
3632 timers [active] = timers [timercnt + HEAP0]; 4110 timers [active] = timers [timercnt + HEAP0];
3633 adjustheap (timers, timercnt, active); 4111 adjustheap (timers, timercnt, active);
3634 } 4112 }
3635 } 4113 }
… …
3639 ev_stop (EV_A_ (W)w); 4117 ev_stop (EV_A_ (W)w);
3640 4118
3641 EV_FREQUENT_CHECK; 4119 EV_FREQUENT_CHECK;
3642} 4120}
3643 4121
3644void noinline 4122ecb_noinline
4123void
3645ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4124ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3646{ 4125{
3647 EV_FREQUENT_CHECK; 4126 EV_FREQUENT_CHECK;
3648 4127
3649 clear_pending (EV_A_ (W)w); 4128 clear_pending (EV_A_ (W)w);
3650 4129
… …
3667 4146
3668 EV_FREQUENT_CHECK; 4147 EV_FREQUENT_CHECK;
3669} 4148}
3670 4149
3671ev_tstamp 4150ev_tstamp
3672ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4151ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3673{ 4152{
3674 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4153 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3675} 4154}
3676 4155
3677#if EV_PERIODIC_ENABLE 4156#if EV_PERIODIC_ENABLE
3678void noinline 4157ecb_noinline
4158void
3679ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4159ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3680{ 4160{
3681 if (expect_false (ev_is_active (w))) 4161 if (ecb_expect_false (ev_is_active (w)))
3682 return; 4162 return;
3683 4163
3684 if (w->reschedule_cb) 4164 if (w->reschedule_cb)
3685 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4165 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3686 else if (w->interval) 4166 else if (w->interval)
… …
3693 4173
3694 EV_FREQUENT_CHECK; 4174 EV_FREQUENT_CHECK;
3695 4175
3696 ++periodiccnt; 4176 ++periodiccnt;
3697 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4177 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3698 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4178 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3699 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4179 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3700 ANHE_at_cache (periodics [ev_active (w)]); 4180 ANHE_at_cache (periodics [ev_active (w)]);
3701 upheap (periodics, ev_active (w)); 4181 upheap (periodics, ev_active (w));
3702 4182
3703 EV_FREQUENT_CHECK; 4183 EV_FREQUENT_CHECK;
3704 4184
3705 /*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));*/
3706} 4186}
3707 4187
3708void noinline 4188ecb_noinline
4189void
3709ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4190ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3710{ 4191{
3711 clear_pending (EV_A_ (W)w); 4192 clear_pending (EV_A_ (W)w);
3712 if (expect_false (!ev_is_active (w))) 4193 if (ecb_expect_false (!ev_is_active (w)))
3713 return; 4194 return;
3714 4195
3715 EV_FREQUENT_CHECK; 4196 EV_FREQUENT_CHECK;
3716 4197
3717 { 4198 {
… …
3719 4200
3720 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));
3721 4202
3722 --periodiccnt; 4203 --periodiccnt;
3723 4204
3724 if (expect_true (active < periodiccnt + HEAP0)) 4205 if (ecb_expect_true (active < periodiccnt + HEAP0))
3725 { 4206 {
3726 periodics [active] = periodics [periodiccnt + HEAP0]; 4207 periodics [active] = periodics [periodiccnt + HEAP0];
3727 adjustheap (periodics, periodiccnt, active); 4208 adjustheap (periodics, periodiccnt, active);
3728 } 4209 }
3729 } 4210 }
… …
3731 ev_stop (EV_A_ (W)w); 4212 ev_stop (EV_A_ (W)w);
3732 4213
3733 EV_FREQUENT_CHECK; 4214 EV_FREQUENT_CHECK;
3734} 4215}
3735 4216
3736void noinline 4217ecb_noinline
4218void
3737ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4219ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3738{ 4220{
3739 /* TODO: use adjustheap and recalculation */ 4221 /* TODO: use adjustheap and recalculation */
3740 ev_periodic_stop (EV_A_ w); 4222 ev_periodic_stop (EV_A_ w);
3741 ev_periodic_start (EV_A_ w); 4223 ev_periodic_start (EV_A_ w);
3742} 4224}
… …
3746# define SA_RESTART 0 4228# define SA_RESTART 0
3747#endif 4229#endif
3748 4230
3749#if EV_SIGNAL_ENABLE 4231#if EV_SIGNAL_ENABLE
3750 4232
3751void noinline 4233ecb_noinline
4234void
3752ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4235ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3753{ 4236{
3754 if (expect_false (ev_is_active (w))) 4237 if (ecb_expect_false (ev_is_active (w)))
3755 return; 4238 return;
3756 4239
3757 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));
3758 4241
3759#if EV_MULTIPLICITY 4242#if EV_MULTIPLICITY
… …
3828 } 4311 }
3829 4312
3830 EV_FREQUENT_CHECK; 4313 EV_FREQUENT_CHECK;
3831} 4314}
3832 4315
3833void noinline 4316ecb_noinline
4317void
3834ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4318ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3835{ 4319{
3836 clear_pending (EV_A_ (W)w); 4320 clear_pending (EV_A_ (W)w);
3837 if (expect_false (!ev_is_active (w))) 4321 if (ecb_expect_false (!ev_is_active (w)))
3838 return; 4322 return;
3839 4323
3840 EV_FREQUENT_CHECK; 4324 EV_FREQUENT_CHECK;
3841 4325
3842 wlist_del (&signals [w->signum - 1].head, (WL)w); 4326 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3870#endif 4354#endif
3871 4355
3872#if EV_CHILD_ENABLE 4356#if EV_CHILD_ENABLE
3873 4357
3874void 4358void
3875ev_child_start (EV_P_ ev_child *w) EV_THROW 4359ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3876{ 4360{
3877#if EV_MULTIPLICITY 4361#if EV_MULTIPLICITY
3878 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));
3879#endif 4363#endif
3880 if (expect_false (ev_is_active (w))) 4364 if (ecb_expect_false (ev_is_active (w)))
3881 return; 4365 return;
3882 4366
3883 EV_FREQUENT_CHECK; 4367 EV_FREQUENT_CHECK;
3884 4368
3885 ev_start (EV_A_ (W)w, 1); 4369 ev_start (EV_A_ (W)w, 1);
… …
3887 4371
3888 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
3889} 4373}
3890 4374
3891void 4375void
3892ev_child_stop (EV_P_ ev_child *w) EV_THROW 4376ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3893{ 4377{
3894 clear_pending (EV_A_ (W)w); 4378 clear_pending (EV_A_ (W)w);
3895 if (expect_false (!ev_is_active (w))) 4379 if (ecb_expect_false (!ev_is_active (w)))
3896 return; 4380 return;
3897 4381
3898 EV_FREQUENT_CHECK; 4382 EV_FREQUENT_CHECK;
3899 4383
3900 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4384 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3914 4398
3915#define DEF_STAT_INTERVAL 5.0074891 4399#define DEF_STAT_INTERVAL 5.0074891
3916#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4400#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3917#define MIN_STAT_INTERVAL 0.1074891 4401#define MIN_STAT_INTERVAL 0.1074891
3918 4402
3919static 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);
3920 4404
3921#if EV_USE_INOTIFY 4405#if EV_USE_INOTIFY
3922 4406
3923/* 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 */
3924# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4408# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3925 4409
3926static void noinline 4410ecb_noinline
4411static void
3927infy_add (EV_P_ ev_stat *w) 4412infy_add (EV_P_ ev_stat *w)
3928{ 4413{
3929 w->wd = inotify_add_watch (fs_fd, w->path, 4414 w->wd = inotify_add_watch (fs_fd, w->path,
3930 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4415 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3931 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4416 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3995 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4480 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3996 ev_timer_again (EV_A_ &w->timer); 4481 ev_timer_again (EV_A_ &w->timer);
3997 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4482 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3998} 4483}
3999 4484
4000static void noinline 4485ecb_noinline
4486static void
4001infy_del (EV_P_ ev_stat *w) 4487infy_del (EV_P_ ev_stat *w)
4002{ 4488{
4003 int slot; 4489 int slot;
4004 int wd = w->wd; 4490 int wd = w->wd;
4005 4491
… …
4012 4498
4013 /* remove this watcher, if others are watching it, they will rearm */ 4499 /* remove this watcher, if others are watching it, they will rearm */
4014 inotify_rm_watch (fs_fd, wd); 4500 inotify_rm_watch (fs_fd, wd);
4015} 4501}
4016 4502
4017static void noinline 4503ecb_noinline
4504static void
4018infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4505infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4019{ 4506{
4020 if (slot < 0) 4507 if (slot < 0)
4021 /* overflow, need to check for all hash slots */ 4508 /* overflow, need to check for all hash slots */
4022 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4509 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4058 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4545 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4059 ofs += sizeof (struct inotify_event) + ev->len; 4546 ofs += sizeof (struct inotify_event) + ev->len;
4060 } 4547 }
4061} 4548}
4062 4549
4063inline_size void ecb_cold 4550inline_size ecb_cold
4551void
4064ev_check_2625 (EV_P) 4552ev_check_2625 (EV_P)
4065{ 4553{
4066 /* kernels < 2.6.25 are borked 4554 /* kernels < 2.6.25 are borked
4067 * 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
4068 */ 4556 */
… …
4158#else 4646#else
4159# define EV_LSTAT(p,b) lstat (p, b) 4647# define EV_LSTAT(p,b) lstat (p, b)
4160#endif 4648#endif
4161 4649
4162void 4650void
4163ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4651ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4164{ 4652{
4165 if (lstat (w->path, &w->attr) < 0) 4653 if (lstat (w->path, &w->attr) < 0)
4166 w->attr.st_nlink = 0; 4654 w->attr.st_nlink = 0;
4167 else if (!w->attr.st_nlink) 4655 else if (!w->attr.st_nlink)
4168 w->attr.st_nlink = 1; 4656 w->attr.st_nlink = 1;
4169} 4657}
4170 4658
4171static void noinline 4659ecb_noinline
4660static void
4172stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4661stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4173{ 4662{
4174 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4663 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4175 4664
4176 ev_statdata prev = w->attr; 4665 ev_statdata prev = w->attr;
… …
4207 ev_feed_event (EV_A_ w, EV_STAT); 4696 ev_feed_event (EV_A_ w, EV_STAT);
4208 } 4697 }
4209} 4698}
4210 4699
4211void 4700void
4212ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4701ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4213{ 4702{
4214 if (expect_false (ev_is_active (w))) 4703 if (ecb_expect_false (ev_is_active (w)))
4215 return; 4704 return;
4216 4705
4217 ev_stat_stat (EV_A_ w); 4706 ev_stat_stat (EV_A_ w);
4218 4707
4219 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4708 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4238 4727
4239 EV_FREQUENT_CHECK; 4728 EV_FREQUENT_CHECK;
4240} 4729}
4241 4730
4242void 4731void
4243ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4732ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4244{ 4733{
4245 clear_pending (EV_A_ (W)w); 4734 clear_pending (EV_A_ (W)w);
4246 if (expect_false (!ev_is_active (w))) 4735 if (ecb_expect_false (!ev_is_active (w)))
4247 return; 4736 return;
4248 4737
4249 EV_FREQUENT_CHECK; 4738 EV_FREQUENT_CHECK;
4250 4739
4251#if EV_USE_INOTIFY 4740#if EV_USE_INOTIFY
… …
4264} 4753}
4265#endif 4754#endif
4266 4755
4267#if EV_IDLE_ENABLE 4756#if EV_IDLE_ENABLE
4268void 4757void
4269ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4758ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4270{ 4759{
4271 if (expect_false (ev_is_active (w))) 4760 if (ecb_expect_false (ev_is_active (w)))
4272 return; 4761 return;
4273 4762
4274 pri_adjust (EV_A_ (W)w); 4763 pri_adjust (EV_A_ (W)w);
4275 4764
4276 EV_FREQUENT_CHECK; 4765 EV_FREQUENT_CHECK;
… …
4279 int active = ++idlecnt [ABSPRI (w)]; 4768 int active = ++idlecnt [ABSPRI (w)];
4280 4769
4281 ++idleall; 4770 ++idleall;
4282 ev_start (EV_A_ (W)w, active); 4771 ev_start (EV_A_ (W)w, active);
4283 4772
4284 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);
4285 idles [ABSPRI (w)][active - 1] = w; 4774 idles [ABSPRI (w)][active - 1] = w;
4286 } 4775 }
4287 4776
4288 EV_FREQUENT_CHECK; 4777 EV_FREQUENT_CHECK;
4289} 4778}
4290 4779
4291void 4780void
4292ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4781ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4293{ 4782{
4294 clear_pending (EV_A_ (W)w); 4783 clear_pending (EV_A_ (W)w);
4295 if (expect_false (!ev_is_active (w))) 4784 if (ecb_expect_false (!ev_is_active (w)))
4296 return; 4785 return;
4297 4786
4298 EV_FREQUENT_CHECK; 4787 EV_FREQUENT_CHECK;
4299 4788
4300 { 4789 {
… …
4311} 4800}
4312#endif 4801#endif
4313 4802
4314#if EV_PREPARE_ENABLE 4803#if EV_PREPARE_ENABLE
4315void 4804void
4316ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4805ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4317{ 4806{
4318 if (expect_false (ev_is_active (w))) 4807 if (ecb_expect_false (ev_is_active (w)))
4319 return; 4808 return;
4320 4809
4321 EV_FREQUENT_CHECK; 4810 EV_FREQUENT_CHECK;
4322 4811
4323 ev_start (EV_A_ (W)w, ++preparecnt); 4812 ev_start (EV_A_ (W)w, ++preparecnt);
4324 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4813 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4325 prepares [preparecnt - 1] = w; 4814 prepares [preparecnt - 1] = w;
4326 4815
4327 EV_FREQUENT_CHECK; 4816 EV_FREQUENT_CHECK;
4328} 4817}
4329 4818
4330void 4819void
4331ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4820ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4332{ 4821{
4333 clear_pending (EV_A_ (W)w); 4822 clear_pending (EV_A_ (W)w);
4334 if (expect_false (!ev_is_active (w))) 4823 if (ecb_expect_false (!ev_is_active (w)))
4335 return; 4824 return;
4336 4825
4337 EV_FREQUENT_CHECK; 4826 EV_FREQUENT_CHECK;
4338 4827
4339 { 4828 {
… …
4349} 4838}
4350#endif 4839#endif
4351 4840
4352#if EV_CHECK_ENABLE 4841#if EV_CHECK_ENABLE
4353void 4842void
4354ev_check_start (EV_P_ ev_check *w) EV_THROW 4843ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4355{ 4844{
4356 if (expect_false (ev_is_active (w))) 4845 if (ecb_expect_false (ev_is_active (w)))
4357 return; 4846 return;
4358 4847
4359 EV_FREQUENT_CHECK; 4848 EV_FREQUENT_CHECK;
4360 4849
4361 ev_start (EV_A_ (W)w, ++checkcnt); 4850 ev_start (EV_A_ (W)w, ++checkcnt);
4362 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4851 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4363 checks [checkcnt - 1] = w; 4852 checks [checkcnt - 1] = w;
4364 4853
4365 EV_FREQUENT_CHECK; 4854 EV_FREQUENT_CHECK;
4366} 4855}
4367 4856
4368void 4857void
4369ev_check_stop (EV_P_ ev_check *w) EV_THROW 4858ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4370{ 4859{
4371 clear_pending (EV_A_ (W)w); 4860 clear_pending (EV_A_ (W)w);
4372 if (expect_false (!ev_is_active (w))) 4861 if (ecb_expect_false (!ev_is_active (w)))
4373 return; 4862 return;
4374 4863
4375 EV_FREQUENT_CHECK; 4864 EV_FREQUENT_CHECK;
4376 4865
4377 { 4866 {
… …
4386 EV_FREQUENT_CHECK; 4875 EV_FREQUENT_CHECK;
4387} 4876}
4388#endif 4877#endif
4389 4878
4390#if EV_EMBED_ENABLE 4879#if EV_EMBED_ENABLE
4391void noinline 4880ecb_noinline
4881void
4392ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4882ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4393{ 4883{
4394 ev_run (w->other, EVRUN_NOWAIT); 4884 ev_run (w->other, EVRUN_NOWAIT);
4395} 4885}
4396 4886
4397static void 4887static void
… …
4445 ev_idle_stop (EV_A_ idle); 4935 ev_idle_stop (EV_A_ idle);
4446} 4936}
4447#endif 4937#endif
4448 4938
4449void 4939void
4450ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4940ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4451{ 4941{
4452 if (expect_false (ev_is_active (w))) 4942 if (ecb_expect_false (ev_is_active (w)))
4453 return; 4943 return;
4454 4944
4455 { 4945 {
4456 EV_P = w->other; 4946 EV_P = w->other;
4457 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 ()));
… …
4476 4966
4477 EV_FREQUENT_CHECK; 4967 EV_FREQUENT_CHECK;
4478} 4968}
4479 4969
4480void 4970void
4481ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4971ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4482{ 4972{
4483 clear_pending (EV_A_ (W)w); 4973 clear_pending (EV_A_ (W)w);
4484 if (expect_false (!ev_is_active (w))) 4974 if (ecb_expect_false (!ev_is_active (w)))
4485 return; 4975 return;
4486 4976
4487 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
4488 4978
4489 ev_io_stop (EV_A_ &w->io); 4979 ev_io_stop (EV_A_ &w->io);
… …
4496} 4986}
4497#endif 4987#endif
4498 4988
4499#if EV_FORK_ENABLE 4989#if EV_FORK_ENABLE
4500void 4990void
4501ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4991ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4502{ 4992{
4503 if (expect_false (ev_is_active (w))) 4993 if (ecb_expect_false (ev_is_active (w)))
4504 return; 4994 return;
4505 4995
4506 EV_FREQUENT_CHECK; 4996 EV_FREQUENT_CHECK;
4507 4997
4508 ev_start (EV_A_ (W)w, ++forkcnt); 4998 ev_start (EV_A_ (W)w, ++forkcnt);
4509 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4999 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4510 forks [forkcnt - 1] = w; 5000 forks [forkcnt - 1] = w;
4511 5001
4512 EV_FREQUENT_CHECK; 5002 EV_FREQUENT_CHECK;
4513} 5003}
4514 5004
4515void 5005void
4516ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5006ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4517{ 5007{
4518 clear_pending (EV_A_ (W)w); 5008 clear_pending (EV_A_ (W)w);
4519 if (expect_false (!ev_is_active (w))) 5009 if (ecb_expect_false (!ev_is_active (w)))
4520 return; 5010 return;
4521 5011
4522 EV_FREQUENT_CHECK; 5012 EV_FREQUENT_CHECK;
4523 5013
4524 { 5014 {
… …
4534} 5024}
4535#endif 5025#endif
4536 5026
4537#if EV_CLEANUP_ENABLE 5027#if EV_CLEANUP_ENABLE
4538void 5028void
4539ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5029ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4540{ 5030{
4541 if (expect_false (ev_is_active (w))) 5031 if (ecb_expect_false (ev_is_active (w)))
4542 return; 5032 return;
4543 5033
4544 EV_FREQUENT_CHECK; 5034 EV_FREQUENT_CHECK;
4545 5035
4546 ev_start (EV_A_ (W)w, ++cleanupcnt); 5036 ev_start (EV_A_ (W)w, ++cleanupcnt);
4547 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5037 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4548 cleanups [cleanupcnt - 1] = w; 5038 cleanups [cleanupcnt - 1] = w;
4549 5039
4550 /* cleanup watchers should never keep a refcount on the loop */ 5040 /* cleanup watchers should never keep a refcount on the loop */
4551 ev_unref (EV_A); 5041 ev_unref (EV_A);
4552 EV_FREQUENT_CHECK; 5042 EV_FREQUENT_CHECK;
4553} 5043}
4554 5044
4555void 5045void
4556ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5046ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4557{ 5047{
4558 clear_pending (EV_A_ (W)w); 5048 clear_pending (EV_A_ (W)w);
4559 if (expect_false (!ev_is_active (w))) 5049 if (ecb_expect_false (!ev_is_active (w)))
4560 return; 5050 return;
4561 5051
4562 EV_FREQUENT_CHECK; 5052 EV_FREQUENT_CHECK;
4563 ev_ref (EV_A); 5053 ev_ref (EV_A);
4564 5054
… …
4575} 5065}
4576#endif 5066#endif
4577 5067
4578#if EV_ASYNC_ENABLE 5068#if EV_ASYNC_ENABLE
4579void 5069void
4580ev_async_start (EV_P_ ev_async *w) EV_THROW 5070ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4581{ 5071{
4582 if (expect_false (ev_is_active (w))) 5072 if (ecb_expect_false (ev_is_active (w)))
4583 return; 5073 return;
4584 5074
4585 w->sent = 0; 5075 w->sent = 0;
4586 5076
4587 evpipe_init (EV_A); 5077 evpipe_init (EV_A);
4588 5078
4589 EV_FREQUENT_CHECK; 5079 EV_FREQUENT_CHECK;
4590 5080
4591 ev_start (EV_A_ (W)w, ++asynccnt); 5081 ev_start (EV_A_ (W)w, ++asynccnt);
4592 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5082 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4593 asyncs [asynccnt - 1] = w; 5083 asyncs [asynccnt - 1] = w;
4594 5084
4595 EV_FREQUENT_CHECK; 5085 EV_FREQUENT_CHECK;
4596} 5086}
4597 5087
4598void 5088void
4599ev_async_stop (EV_P_ ev_async *w) EV_THROW 5089ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4600{ 5090{
4601 clear_pending (EV_A_ (W)w); 5091 clear_pending (EV_A_ (W)w);
4602 if (expect_false (!ev_is_active (w))) 5092 if (ecb_expect_false (!ev_is_active (w)))
4603 return; 5093 return;
4604 5094
4605 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
4606 5096
4607 { 5097 {
… …
4615 5105
4616 EV_FREQUENT_CHECK; 5106 EV_FREQUENT_CHECK;
4617} 5107}
4618 5108
4619void 5109void
4620ev_async_send (EV_P_ ev_async *w) EV_THROW 5110ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4621{ 5111{
4622 w->sent = 1; 5112 w->sent = 1;
4623 evpipe_write (EV_A_ &async_pending); 5113 evpipe_write (EV_A_ &async_pending);
4624} 5114}
4625#endif 5115#endif
… …
4662 5152
4663 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));
4664} 5154}
4665 5155
4666void 5156void
4667ev_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
4668{ 5158{
4669 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));
4670
4671 if (expect_false (!once))
4672 {
4673 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4674 return;
4675 }
4676 5160
4677 once->cb = cb; 5161 once->cb = cb;
4678 once->arg = arg; 5162 once->arg = arg;
4679 5163
4680 ev_init (&once->io, once_cb_io); 5164 ev_init (&once->io, once_cb_io);
… …
4693} 5177}
4694 5178
4695/*****************************************************************************/ 5179/*****************************************************************************/
4696 5180
4697#if EV_WALK_ENABLE 5181#if EV_WALK_ENABLE
4698void ecb_cold 5182ecb_cold
5183void
4699ev_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
4700{ 5185{
4701 int i, j; 5186 int i, j;
4702 ev_watcher_list *wl, *wn; 5187 ev_watcher_list *wl, *wn;
4703 5188
4704 if (types & (EV_IO | EV_EMBED)) 5189 if (types & (EV_IO | EV_EMBED))

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