ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.457 by root, Thu Sep 5 18:45:29 2013 UTC vs.
Revision 1.507 by root, Thu Jul 11 08:22:54 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 /* linuxaio backend requires epoll backend */
453# define EV_NEED_SYSCALL 1
454# else
455# undef EV_USE_LINUXAIO
456# define EV_USE_LINUXAIO 0
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !SYS_io_uring_setup && __linux && !__alpha
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
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/*****************************************************************************/
465 524
466#if EV_VERIFY >= 3 525#if EV_VERIFY >= 3
467# define EV_FREQUENT_CHECK ev_verify (EV_A) 526# define EV_FREQUENT_CHECK ev_verify (EV_A)
468#else 527#else
469# define EV_FREQUENT_CHECK do { } while (0) 528# define EV_FREQUENT_CHECK do { } while (0)
… …
474 * This value is good at least till the year 4000. 533 * This value is good at least till the year 4000.
475 */ 534 */
476#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 535#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
477/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 536/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
478 537
479#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 538#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
480#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 539#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
481 540
541/* find a portable timestamp that is "always" in the future but fits into time_t.
542 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
543 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
544#define EV_TSTAMP_HUGE \
545 (sizeof (time_t) >= 8 ? 10000000000000. \
546 : 0 < (time_t)4294967295 ? 4294967295. \
547 : 2147483647.) \
548
549#define EV_TS_TO_MS(a) a * 1e3 + 0.9999
550#define EV_TS_FROM_USEC(us) us * 1e-6
482#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 551#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
483#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 552#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
553#define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
554#define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
484 555
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 556/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 557/* ECB.H BEGIN */
487/* 558/*
488 * libecb - http://software.schmorp.de/pkg/libecb 559 * libecb - http://software.schmorp.de/pkg/libecb
489 * 560 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 561 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 562 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 563 * All rights reserved.
493 * 564 *
494 * Redistribution and use in source and binary forms, with or without modifica- 565 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 566 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 580 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 581 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 582 * 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 583 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 584 * OF THE POSSIBILITY OF SUCH DAMAGE.
585 *
586 * Alternatively, the contents of this file may be used under the terms of
587 * the GNU General Public License ("GPL") version 2 or any later version,
588 * in which case the provisions of the GPL are applicable instead of
589 * the above. If you wish to allow the use of your version of this file
590 * only under the terms of the GPL and not to allow others to use your
591 * version of this file under the BSD license, indicate your decision
592 * by deleting the provisions above and replace them with the notice
593 * and other provisions required by the GPL. If you do not delete the
594 * provisions above, a recipient may use your version of this file under
595 * either the BSD or the GPL.
514 */ 596 */
515 597
516#ifndef ECB_H 598#ifndef ECB_H
517#define ECB_H 599#define ECB_H
518 600
519/* 16 bits major, 16 bits minor */ 601/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003 602#define ECB_VERSION 0x00010006
521 603
522#ifdef _WIN32 604#ifdef _WIN32
523 typedef signed char int8_t; 605 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 606 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 607 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 624 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 625 typedef int32_t intptr_t;
544 #endif 626 #endif
545#else 627#else
546 #include <inttypes.h> 628 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 629 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 630 #define ECB_PTRSIZE 8
549 #else 631 #else
550 #define ECB_PTRSIZE 4 632 #define ECB_PTRSIZE 4
551 #endif 633 #endif
552#endif 634#endif
553 635
636#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
637#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
638
554/* work around x32 idiocy by defining proper macros */ 639/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64 640#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
556 #if __ILP32 641 #if _ILP32
557 #define ECB_AMD64_X32 1 642 #define ECB_AMD64_X32 1
558 #else 643 #else
559 #define ECB_AMD64 1 644 #define ECB_AMD64 1
560 #endif 645 #endif
561#endif 646#endif
… …
565 * causing enormous grief in return for some better fake benchmark numbers. 650 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so. 651 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have 652 * 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. 653 * an issue with that they should have done it right in the first place.
569 */ 654 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 655#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0 656 #define ECB_GCC_VERSION(major,minor) 0
573 #else 657#else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 658 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif 659#endif
576#endif
577 660
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 661#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
579#define ECB_C99 (__STDC_VERSION__ >= 199901L) 662
580#define ECB_C11 (__STDC_VERSION__ >= 201112L) 663#if __clang__ && defined __has_builtin
664 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
665#else
666 #define ECB_CLANG_BUILTIN(x) 0
667#endif
668
669#if __clang__ && defined __has_extension
670 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
671#else
672 #define ECB_CLANG_EXTENSION(x) 0
673#endif
674
581#define ECB_CPP (__cplusplus+0) 675#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L) 676#define ECB_CPP11 (__cplusplus >= 201103L)
677#define ECB_CPP14 (__cplusplus >= 201402L)
678#define ECB_CPP17 (__cplusplus >= 201703L)
679
680#if ECB_CPP
681 #define ECB_C 0
682 #define ECB_STDC_VERSION 0
683#else
684 #define ECB_C 1
685 #define ECB_STDC_VERSION __STDC_VERSION__
686#endif
687
688#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
689#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
690#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
583 691
584#if ECB_CPP 692#if ECB_CPP
585 #define ECB_EXTERN_C extern "C" 693 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 694 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END } 695 #define ECB_EXTERN_C_END }
… …
602 710
603#if ECB_NO_SMP 711#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0) 712 #define ECB_MEMORY_FENCE do { } while (0)
605#endif 713#endif
606 714
715/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
716#if __xlC__ && ECB_CPP
717 #include <builtins.h>
718#endif
719
720#if 1400 <= _MSC_VER
721 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
722#endif
723
607#ifndef ECB_MEMORY_FENCE 724#ifndef ECB_MEMORY_FENCE
608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 725 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
726 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
609 #if __i386 || __i386__ 727 #if __i386 || __i386__
610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 728 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 729 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 730 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 731 #elif ECB_GCC_AMD64
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 732 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 733 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 734 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 735 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 736 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
737 #elif defined __ARM_ARCH_2__ \
738 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
739 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
740 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
741 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
742 || defined __ARM_ARCH_5TEJ__
743 /* 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__ \ 744 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 745 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
746 || defined __ARM_ARCH_6T2__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 747 #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__ \ 748 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 749 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 750 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__ 751 #elif __aarch64__
752 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
753 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 754 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 755 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 756 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__ 757 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 758 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
631 #elif defined __mips__ 759 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */ 760 /* 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. */ 761 /* 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") 762 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
635 #elif defined __alpha__ 763 #elif defined __alpha__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 764 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
637 #elif defined __hppa__ 765 #elif defined __hppa__
… …
651 779
652#ifndef ECB_MEMORY_FENCE 780#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(4,7) 781 #if ECB_GCC_VERSION(4,7)
654 /* see comment below (stdatomic.h) about the C11 memory model. */ 782 /* see comment below (stdatomic.h) about the C11 memory model. */
655 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 783 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
784 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
785 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
786 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
656 787
657 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 788 #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. 789 /* see comment below (stdatomic.h) about the C11 memory model. */
663 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 790 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
664 */ 791 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
792 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
793 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
665 794
666 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 795 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
667 #define ECB_MEMORY_FENCE __sync_synchronize () 796 #define ECB_MEMORY_FENCE __sync_synchronize ()
797 #elif _MSC_VER >= 1500 /* VC++ 2008 */
798 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
799 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
800 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
801 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
802 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
668 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 803 #elif _MSC_VER >= 1400 /* VC++ 2005 */
669 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 804 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
670 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 805 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
671 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 806 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
672 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 807 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
673 #elif defined _WIN32 808 #elif defined _WIN32
674 #include <WinNT.h> 809 #include <WinNT.h>
675 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 810 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
676 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 811 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
677 #include <mbarrier.h> 812 #include <mbarrier.h>
678 #define ECB_MEMORY_FENCE __machine_rw_barrier () 813 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
679 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 814 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
680 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 815 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
816 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
681 #elif __xlC__ 817 #elif __xlC__
682 #define ECB_MEMORY_FENCE __sync () 818 #define ECB_MEMORY_FENCE __sync ()
683 #endif 819 #endif
684#endif 820#endif
685 821
686#ifndef ECB_MEMORY_FENCE 822#ifndef ECB_MEMORY_FENCE
687 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 823 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
688 /* we assume that these memory fences work on all variables/all memory accesses, */ 824 /* we assume that these memory fences work on all variables/all memory accesses, */
689 /* not just C11 atomics and atomic accesses */ 825 /* not just C11 atomics and atomic accesses */
690 #include <stdatomic.h> 826 #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) 827 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
828 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
829 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
698 #endif 830 #endif
699#endif 831#endif
700 832
701#ifndef ECB_MEMORY_FENCE 833#ifndef ECB_MEMORY_FENCE
702 #if !ECB_AVOID_PTHREADS 834 #if !ECB_AVOID_PTHREADS
… …
722 854
723#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 855#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
724 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 856 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
725#endif 857#endif
726 858
859#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
860 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
861#endif
862
727/*****************************************************************************/ 863/*****************************************************************************/
728 864
729#if __cplusplus 865#if ECB_CPP
730 #define ecb_inline static inline 866 #define ecb_inline static inline
731#elif ECB_GCC_VERSION(2,5) 867#elif ECB_GCC_VERSION(2,5)
732 #define ecb_inline static __inline__ 868 #define ecb_inline static __inline__
733#elif ECB_C99 869#elif ECB_C99
734 #define ecb_inline static inline 870 #define ecb_inline static inline
… …
748 884
749#define ECB_CONCAT_(a, b) a ## b 885#define ECB_CONCAT_(a, b) a ## b
750#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 886#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
751#define ECB_STRINGIFY_(a) # a 887#define ECB_STRINGIFY_(a) # a
752#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 888#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
889#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
753 890
754#define ecb_function_ ecb_inline 891#define ecb_function_ ecb_inline
755 892
756#if ECB_GCC_VERSION(3,1) 893#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
757 #define ecb_attribute(attrlist) __attribute__(attrlist) 894 #define ecb_attribute(attrlist) __attribute__ (attrlist)
895#else
896 #define ecb_attribute(attrlist)
897#endif
898
899#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
758 #define ecb_is_constant(expr) __builtin_constant_p (expr) 900 #define ecb_is_constant(expr) __builtin_constant_p (expr)
901#else
902 /* possible C11 impl for integral types
903 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
904 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
905
906 #define ecb_is_constant(expr) 0
907#endif
908
909#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
759 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 910 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
911#else
912 #define ecb_expect(expr,value) (expr)
913#endif
914
915#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
760 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 916 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
761#else 917#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) 918 #define ecb_prefetch(addr,rw,locality)
766#endif 919#endif
767 920
768/* no emulation for ecb_decltype */ 921/* no emulation for ecb_decltype */
769#if ECB_GCC_VERSION(4,5) 922#if ECB_CPP11
923 // older implementations might have problems with decltype(x)::type, work around it
924 template<class T> struct ecb_decltype_t { typedef T type; };
770 #define ecb_decltype(x) __decltype(x) 925 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
771#elif ECB_GCC_VERSION(3,0) 926#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
772 #define ecb_decltype(x) __typeof(x) 927 #define ecb_decltype(x) __typeof__ (x)
773#endif 928#endif
774 929
930#if _MSC_VER >= 1300
931 #define ecb_deprecated __declspec (deprecated)
932#else
933 #define ecb_deprecated ecb_attribute ((__deprecated__))
934#endif
935
936#if _MSC_VER >= 1500
937 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
938#elif ECB_GCC_VERSION(4,5)
939 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
940#else
941 #define ecb_deprecated_message(msg) ecb_deprecated
942#endif
943
944#if _MSC_VER >= 1400
945 #define ecb_noinline __declspec (noinline)
946#else
775#define ecb_noinline ecb_attribute ((__noinline__)) 947 #define ecb_noinline ecb_attribute ((__noinline__))
948#endif
949
776#define ecb_unused ecb_attribute ((__unused__)) 950#define ecb_unused ecb_attribute ((__unused__))
777#define ecb_const ecb_attribute ((__const__)) 951#define ecb_const ecb_attribute ((__const__))
778#define ecb_pure ecb_attribute ((__pure__)) 952#define ecb_pure ecb_attribute ((__pure__))
779 953
780#if ECB_C11 954#if ECB_C11 || __IBMC_NORETURN
955 /* 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 956 #define ecb_noreturn _Noreturn
957#elif ECB_CPP11
958 #define ecb_noreturn [[noreturn]]
959#elif _MSC_VER >= 1200
960 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
961 #define ecb_noreturn __declspec (noreturn)
782#else 962#else
783 #define ecb_noreturn ecb_attribute ((__noreturn__)) 963 #define ecb_noreturn ecb_attribute ((__noreturn__))
784#endif 964#endif
785 965
786#if ECB_GCC_VERSION(4,3) 966#if ECB_GCC_VERSION(4,3)
… …
801/* for compatibility to the rest of the world */ 981/* for compatibility to the rest of the world */
802#define ecb_likely(expr) ecb_expect_true (expr) 982#define ecb_likely(expr) ecb_expect_true (expr)
803#define ecb_unlikely(expr) ecb_expect_false (expr) 983#define ecb_unlikely(expr) ecb_expect_false (expr)
804 984
805/* count trailing zero bits and count # of one bits */ 985/* count trailing zero bits and count # of one bits */
806#if ECB_GCC_VERSION(3,4) 986#if ECB_GCC_VERSION(3,4) \
987 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
988 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
989 && ECB_CLANG_BUILTIN(__builtin_popcount))
807 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 990 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
808 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 991 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
809 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 992 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
810 #define ecb_ctz32(x) __builtin_ctz (x) 993 #define ecb_ctz32(x) __builtin_ctz (x)
811 #define ecb_ctz64(x) __builtin_ctzll (x) 994 #define ecb_ctz64(x) __builtin_ctzll (x)
812 #define ecb_popcount32(x) __builtin_popcount (x) 995 #define ecb_popcount32(x) __builtin_popcount (x)
813 /* no popcountll */ 996 /* no popcountll */
814#else 997#else
815 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 998 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
816 ecb_function_ int 999 ecb_function_ ecb_const int
817 ecb_ctz32 (uint32_t x) 1000 ecb_ctz32 (uint32_t x)
818 { 1001 {
1002#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1003 unsigned long r;
1004 _BitScanForward (&r, x);
1005 return (int)r;
1006#else
819 int r = 0; 1007 int r = 0;
820 1008
821 x &= ~x + 1; /* this isolates the lowest bit */ 1009 x &= ~x + 1; /* this isolates the lowest bit */
822 1010
823#if ECB_branchless_on_i386 1011#if ECB_branchless_on_i386
… …
833 if (x & 0xff00ff00) r += 8; 1021 if (x & 0xff00ff00) r += 8;
834 if (x & 0xffff0000) r += 16; 1022 if (x & 0xffff0000) r += 16;
835#endif 1023#endif
836 1024
837 return r; 1025 return r;
1026#endif
838 } 1027 }
839 1028
840 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1029 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
841 ecb_function_ int 1030 ecb_function_ ecb_const int
842 ecb_ctz64 (uint64_t x) 1031 ecb_ctz64 (uint64_t x)
843 { 1032 {
1033#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1034 unsigned long r;
1035 _BitScanForward64 (&r, x);
1036 return (int)r;
1037#else
844 int shift = x & 0xffffffffU ? 0 : 32; 1038 int shift = x & 0xffffffff ? 0 : 32;
845 return ecb_ctz32 (x >> shift) + shift; 1039 return ecb_ctz32 (x >> shift) + shift;
1040#endif
846 } 1041 }
847 1042
848 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1043 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
849 ecb_function_ int 1044 ecb_function_ ecb_const int
850 ecb_popcount32 (uint32_t x) 1045 ecb_popcount32 (uint32_t x)
851 { 1046 {
852 x -= (x >> 1) & 0x55555555; 1047 x -= (x >> 1) & 0x55555555;
853 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1048 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
854 x = ((x >> 4) + x) & 0x0f0f0f0f; 1049 x = ((x >> 4) + x) & 0x0f0f0f0f;
855 x *= 0x01010101; 1050 x *= 0x01010101;
856 1051
857 return x >> 24; 1052 return x >> 24;
858 } 1053 }
859 1054
860 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1055 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
861 ecb_function_ int ecb_ld32 (uint32_t x) 1056 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
862 { 1057 {
1058#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1059 unsigned long r;
1060 _BitScanReverse (&r, x);
1061 return (int)r;
1062#else
863 int r = 0; 1063 int r = 0;
864 1064
865 if (x >> 16) { x >>= 16; r += 16; } 1065 if (x >> 16) { x >>= 16; r += 16; }
866 if (x >> 8) { x >>= 8; r += 8; } 1066 if (x >> 8) { x >>= 8; r += 8; }
867 if (x >> 4) { x >>= 4; r += 4; } 1067 if (x >> 4) { x >>= 4; r += 4; }
868 if (x >> 2) { x >>= 2; r += 2; } 1068 if (x >> 2) { x >>= 2; r += 2; }
869 if (x >> 1) { r += 1; } 1069 if (x >> 1) { r += 1; }
870 1070
871 return r; 1071 return r;
1072#endif
872 } 1073 }
873 1074
874 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1075 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
875 ecb_function_ int ecb_ld64 (uint64_t x) 1076 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
876 { 1077 {
1078#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1079 unsigned long r;
1080 _BitScanReverse64 (&r, x);
1081 return (int)r;
1082#else
877 int r = 0; 1083 int r = 0;
878 1084
879 if (x >> 32) { x >>= 32; r += 32; } 1085 if (x >> 32) { x >>= 32; r += 32; }
880 1086
881 return r + ecb_ld32 (x); 1087 return r + ecb_ld32 (x);
1088#endif
882 } 1089 }
883#endif 1090#endif
884 1091
885ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1092ecb_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)); } 1093ecb_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; 1094ecb_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)); } 1095ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
889 1096
890ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1097ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
891ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1098ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
892{ 1099{
893 return ( (x * 0x0802U & 0x22110U) 1100 return ( (x * 0x0802U & 0x22110U)
894 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1101 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
895} 1102}
896 1103
897ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1104ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
898ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1105ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
899{ 1106{
900 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1107 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
901 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1108 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
902 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1109 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
903 x = ( x >> 8 ) | ( x << 8); 1110 x = ( x >> 8 ) | ( x << 8);
904 1111
905 return x; 1112 return x;
906} 1113}
907 1114
908ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1115ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
909ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1116ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
910{ 1117{
911 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1118 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
912 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1119 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
913 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1120 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
914 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1121 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
917 return x; 1124 return x;
918} 1125}
919 1126
920/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1127/* popcount64 is only available on 64 bit cpus as gcc builtin */
921/* so for this version we are lazy */ 1128/* so for this version we are lazy */
922ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1129ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
923ecb_function_ int 1130ecb_function_ ecb_const int
924ecb_popcount64 (uint64_t x) 1131ecb_popcount64 (uint64_t x)
925{ 1132{
926 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1133 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
927} 1134}
928 1135
929ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1136ecb_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; 1137ecb_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; 1138ecb_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; 1139ecb_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; 1140ecb_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; 1141ecb_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; 1142ecb_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; 1143ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
937 1144
938ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1145ecb_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); } 1146ecb_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); } 1147ecb_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); } 1148ecb_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); } 1149ecb_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); } 1150ecb_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); } 1151ecb_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); } 1152ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
946 1153
947#if ECB_GCC_VERSION(4,3) 1154#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1155 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1156 #define ecb_bswap16(x) __builtin_bswap16 (x)
1157 #else
948 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1158 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1159 #endif
949 #define ecb_bswap32(x) __builtin_bswap32 (x) 1160 #define ecb_bswap32(x) __builtin_bswap32 (x)
950 #define ecb_bswap64(x) __builtin_bswap64 (x) 1161 #define ecb_bswap64(x) __builtin_bswap64 (x)
1162#elif _MSC_VER
1163 #include <stdlib.h>
1164 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1165 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1166 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
951#else 1167#else
952 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1168 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
953 ecb_function_ uint16_t 1169 ecb_function_ ecb_const uint16_t
954 ecb_bswap16 (uint16_t x) 1170 ecb_bswap16 (uint16_t x)
955 { 1171 {
956 return ecb_rotl16 (x, 8); 1172 return ecb_rotl16 (x, 8);
957 } 1173 }
958 1174
959 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1175 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
960 ecb_function_ uint32_t 1176 ecb_function_ ecb_const uint32_t
961 ecb_bswap32 (uint32_t x) 1177 ecb_bswap32 (uint32_t x)
962 { 1178 {
963 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1179 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
964 } 1180 }
965 1181
966 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1182 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
967 ecb_function_ uint64_t 1183 ecb_function_ ecb_const uint64_t
968 ecb_bswap64 (uint64_t x) 1184 ecb_bswap64 (uint64_t x)
969 { 1185 {
970 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1186 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
971 } 1187 }
972#endif 1188#endif
973 1189
974#if ECB_GCC_VERSION(4,5) 1190#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
975 #define ecb_unreachable() __builtin_unreachable () 1191 #define ecb_unreachable() __builtin_unreachable ()
976#else 1192#else
977 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1193 /* this seems to work fine, but gcc always emits a warning for it :/ */
978 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1194 ecb_inline ecb_noreturn void ecb_unreachable (void);
979 ecb_inline void ecb_unreachable (void) { } 1195 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
980#endif 1196#endif
981 1197
982/* try to tell the compiler that some condition is definitely true */ 1198/* try to tell the compiler that some condition is definitely true */
983#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1199#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
984 1200
985ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1201ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
986ecb_inline unsigned char 1202ecb_inline ecb_const uint32_t
987ecb_byteorder_helper (void) 1203ecb_byteorder_helper (void)
988{ 1204{
989 /* the union code still generates code under pressure in gcc, */ 1205 /* the union code still generates code under pressure in gcc, */
990 /* but less than using pointers, and always seems to */ 1206 /* but less than using pointers, and always seems to */
991 /* successfully return a constant. */ 1207 /* successfully return a constant. */
992 /* the reason why we have this horrible preprocessor mess */ 1208 /* the reason why we have this horrible preprocessor mess */
993 /* is to avoid it in all cases, at least on common architectures */ 1209 /* is to avoid it in all cases, at least on common architectures */
994 /* or when using a recent enough gcc version (>= 4.6) */ 1210 /* 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__ 1211#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1212 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1213 #define ECB_LITTLE_ENDIAN 1
998 return 0x44; 1214 return 0x44332211;
999#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1215#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1216 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1217 #define ECB_BIG_ENDIAN 1
1000 return 0x11; 1218 return 0x11223344;
1001#else 1219#else
1002 union 1220 union
1003 { 1221 {
1222 uint8_t c[4];
1004 uint32_t i; 1223 uint32_t u;
1005 uint8_t c;
1006 } u = { 0x11223344 }; 1224 } u = { 0x11, 0x22, 0x33, 0x44 };
1007 return u.c; 1225 return u.u;
1008#endif 1226#endif
1009} 1227}
1010 1228
1011ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1229ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1012ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1230ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1013ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1231ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1014ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1232ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1015 1233
1016#if ECB_GCC_VERSION(3,0) || ECB_C99 1234#if ECB_GCC_VERSION(3,0) || ECB_C99
1017 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1235 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1018#else 1236#else
1019 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1237 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1020#endif 1238#endif
1021 1239
1022#if __cplusplus 1240#if ECB_CPP
1023 template<typename T> 1241 template<typename T>
1024 static inline T ecb_div_rd (T val, T div) 1242 static inline T ecb_div_rd (T val, T div)
1025 { 1243 {
1026 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1244 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1027 } 1245 }
… …
1044 } 1262 }
1045#else 1263#else
1046 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1264 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1047#endif 1265#endif
1048 1266
1267ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1268ecb_function_ ecb_const uint32_t
1269ecb_binary16_to_binary32 (uint32_t x)
1270{
1271 unsigned int s = (x & 0x8000) << (31 - 15);
1272 int e = (x >> 10) & 0x001f;
1273 unsigned int m = x & 0x03ff;
1274
1275 if (ecb_expect_false (e == 31))
1276 /* infinity or NaN */
1277 e = 255 - (127 - 15);
1278 else if (ecb_expect_false (!e))
1279 {
1280 if (ecb_expect_true (!m))
1281 /* zero, handled by code below by forcing e to 0 */
1282 e = 0 - (127 - 15);
1283 else
1284 {
1285 /* subnormal, renormalise */
1286 unsigned int s = 10 - ecb_ld32 (m);
1287
1288 m = (m << s) & 0x3ff; /* mask implicit bit */
1289 e -= s - 1;
1290 }
1291 }
1292
1293 /* e and m now are normalised, or zero, (or inf or nan) */
1294 e += 127 - 15;
1295
1296 return s | (e << 23) | (m << (23 - 10));
1297}
1298
1299ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1300ecb_function_ ecb_const uint16_t
1301ecb_binary32_to_binary16 (uint32_t x)
1302{
1303 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1304 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1305 unsigned int m = x & 0x007fffff;
1306
1307 x &= 0x7fffffff;
1308
1309 /* if it's within range of binary16 normals, use fast path */
1310 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1311 {
1312 /* mantissa round-to-even */
1313 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1314
1315 /* handle overflow */
1316 if (ecb_expect_false (m >= 0x00800000))
1317 {
1318 m >>= 1;
1319 e += 1;
1320 }
1321
1322 return s | (e << 10) | (m >> (23 - 10));
1323 }
1324
1325 /* handle large numbers and infinity */
1326 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1327 return s | 0x7c00;
1328
1329 /* handle zero, subnormals and small numbers */
1330 if (ecb_expect_true (x < 0x38800000))
1331 {
1332 /* zero */
1333 if (ecb_expect_true (!x))
1334 return s;
1335
1336 /* handle subnormals */
1337
1338 /* too small, will be zero */
1339 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1340 return s;
1341
1342 m |= 0x00800000; /* make implicit bit explicit */
1343
1344 /* very tricky - we need to round to the nearest e (+10) bit value */
1345 {
1346 unsigned int bits = 14 - e;
1347 unsigned int half = (1 << (bits - 1)) - 1;
1348 unsigned int even = (m >> bits) & 1;
1349
1350 /* if this overflows, we will end up with a normalised number */
1351 m = (m + half + even) >> bits;
1352 }
1353
1354 return s | m;
1355 }
1356
1357 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1358 m >>= 13;
1359
1360 return s | 0x7c00 | m | !m;
1361}
1362
1049/*******************************************************************************/ 1363/*******************************************************************************/
1050/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1364/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1051 1365
1052/* basically, everything uses "ieee pure-endian" floating point numbers */ 1366/* basically, everything uses "ieee pure-endian" floating point numbers */
1053/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1367/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1054#if 0 \ 1368#if 0 \
1055 || __i386 || __i386__ \ 1369 || __i386 || __i386__ \
1056 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1370 || ECB_GCC_AMD64 \
1057 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1371 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1058 || defined __arm__ && defined __ARM_EABI__ \
1059 || defined __s390__ || defined __s390x__ \ 1372 || defined __s390__ || defined __s390x__ \
1060 || defined __mips__ \ 1373 || defined __mips__ \
1061 || defined __alpha__ \ 1374 || defined __alpha__ \
1062 || defined __hppa__ \ 1375 || defined __hppa__ \
1063 || defined __ia64__ \ 1376 || defined __ia64__ \
1064 || defined __m68k__ \ 1377 || defined __m68k__ \
1065 || defined __m88k__ \ 1378 || defined __m88k__ \
1066 || defined __sh__ \ 1379 || defined __sh__ \
1067 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1380 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1381 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1382 || defined __aarch64__
1068 #define ECB_STDFP 1 1383 #define ECB_STDFP 1
1069 #include <string.h> /* for memcpy */ 1384 #include <string.h> /* for memcpy */
1070#else 1385#else
1071 #define ECB_STDFP 0 1386 #define ECB_STDFP 0
1072 #include <math.h> /* for frexp*, ldexp* */
1073#endif 1387#endif
1074 1388
1075#ifndef ECB_NO_LIBM 1389#ifndef ECB_NO_LIBM
1076 1390
1391 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1392
1393 /* only the oldest of old doesn't have this one. solaris. */
1394 #ifdef INFINITY
1395 #define ECB_INFINITY INFINITY
1396 #else
1397 #define ECB_INFINITY HUGE_VAL
1398 #endif
1399
1400 #ifdef NAN
1401 #define ECB_NAN NAN
1402 #else
1403 #define ECB_NAN ECB_INFINITY
1404 #endif
1405
1406 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1407 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1408 #define ecb_frexpf(x,e) frexpf ((x), (e))
1409 #else
1410 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1411 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1412 #endif
1413
1077 /* convert a float to ieee single/binary32 */ 1414 /* convert a float to ieee single/binary32 */
1078 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1415 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1079 ecb_function_ uint32_t 1416 ecb_function_ ecb_const uint32_t
1080 ecb_float_to_binary32 (float x) 1417 ecb_float_to_binary32 (float x)
1081 { 1418 {
1082 uint32_t r; 1419 uint32_t r;
1083 1420
1084 #if ECB_STDFP 1421 #if ECB_STDFP
… …
1091 if (x == 0e0f ) return 0x00000000U; 1428 if (x == 0e0f ) return 0x00000000U;
1092 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1429 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1093 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1430 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1094 if (x != x ) return 0x7fbfffffU; 1431 if (x != x ) return 0x7fbfffffU;
1095 1432
1096 m = frexpf (x, &e) * 0x1000000U; 1433 m = ecb_frexpf (x, &e) * 0x1000000U;
1097 1434
1098 r = m & 0x80000000U; 1435 r = m & 0x80000000U;
1099 1436
1100 if (r) 1437 if (r)
1101 m = -m; 1438 m = -m;
… …
1113 1450
1114 return r; 1451 return r;
1115 } 1452 }
1116 1453
1117 /* converts an ieee single/binary32 to a float */ 1454 /* converts an ieee single/binary32 to a float */
1118 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1455 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1119 ecb_function_ float 1456 ecb_function_ ecb_const float
1120 ecb_binary32_to_float (uint32_t x) 1457 ecb_binary32_to_float (uint32_t x)
1121 { 1458 {
1122 float r; 1459 float r;
1123 1460
1124 #if ECB_STDFP 1461 #if ECB_STDFP
… …
1134 x |= 0x800000U; 1471 x |= 0x800000U;
1135 else 1472 else
1136 e = 1; 1473 e = 1;
1137 1474
1138 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1475 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1139 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1476 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1140 1477
1141 r = neg ? -r : r; 1478 r = neg ? -r : r;
1142 #endif 1479 #endif
1143 1480
1144 return r; 1481 return r;
1145 } 1482 }
1146 1483
1147 /* convert a double to ieee double/binary64 */ 1484 /* convert a double to ieee double/binary64 */
1148 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1485 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1149 ecb_function_ uint64_t 1486 ecb_function_ ecb_const uint64_t
1150 ecb_double_to_binary64 (double x) 1487 ecb_double_to_binary64 (double x)
1151 { 1488 {
1152 uint64_t r; 1489 uint64_t r;
1153 1490
1154 #if ECB_STDFP 1491 #if ECB_STDFP
… …
1183 1520
1184 return r; 1521 return r;
1185 } 1522 }
1186 1523
1187 /* converts an ieee double/binary64 to a double */ 1524 /* converts an ieee double/binary64 to a double */
1188 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1525 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1189 ecb_function_ double 1526 ecb_function_ ecb_const double
1190 ecb_binary64_to_double (uint64_t x) 1527 ecb_binary64_to_double (uint64_t x)
1191 { 1528 {
1192 double r; 1529 double r;
1193 1530
1194 #if ECB_STDFP 1531 #if ECB_STDFP
… …
1212 #endif 1549 #endif
1213 1550
1214 return r; 1551 return r;
1215 } 1552 }
1216 1553
1554 /* convert a float to ieee half/binary16 */
1555 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1556 ecb_function_ ecb_const uint16_t
1557 ecb_float_to_binary16 (float x)
1558 {
1559 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1560 }
1561
1562 /* convert an ieee half/binary16 to float */
1563 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1564 ecb_function_ ecb_const float
1565 ecb_binary16_to_float (uint16_t x)
1566 {
1567 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1568 }
1569
1217#endif 1570#endif
1218 1571
1219#endif 1572#endif
1220 1573
1221/* ECB.H END */ 1574/* ECB.H END */
1222 1575
1223#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1576#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1224/* if your architecture doesn't need memory fences, e.g. because it is 1577/* 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 1578 * 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 1579 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1227 * libev, in which cases the memory fences become nops. 1580 * libev, in which cases the memory fences become nops.
1228 * alternatively, you can remove this #error and link against libpthread, 1581 * alternatively, you can remove this #error and link against libpthread,
1229 * which will then provide the memory fences. 1582 * which will then provide the memory fences.
1230 */ 1583 */
1231# error "memory fences not defined for your architecture, please report" 1584# error "memory fences not defined for your architecture, please report"
… …
1235# define ECB_MEMORY_FENCE do { } while (0) 1588# define ECB_MEMORY_FENCE do { } while (0)
1236# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1589# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1237# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1590# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1238#endif 1591#endif
1239 1592
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 1593#define inline_size ecb_inline
1245 1594
1246#if EV_FEATURE_CODE 1595#if EV_FEATURE_CODE
1247# define inline_speed ecb_inline 1596# define inline_speed ecb_inline
1248#else 1597#else
1249# define inline_speed static noinline 1598# define inline_speed ecb_noinline static
1250#endif 1599#endif
1600
1601/*****************************************************************************/
1602/* raw syscall wrappers */
1603
1604#if EV_NEED_SYSCALL
1605
1606#include <sys/syscall.h>
1607
1608/*
1609 * define some syscall wrappers for common architectures
1610 * this is mostly for nice looks during debugging, not performance.
1611 * our syscalls return < 0, not == -1, on error. which is good
1612 * enough for linux aio.
1613 * TODO: arm is also common nowadays, maybe even mips and x86
1614 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1615 */
1616#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1617 /* the costly errno access probably kills this for size optimisation */
1618
1619 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1620 ({ \
1621 long res; \
1622 register unsigned long r6 __asm__ ("r9" ); \
1623 register unsigned long r5 __asm__ ("r8" ); \
1624 register unsigned long r4 __asm__ ("r10"); \
1625 register unsigned long r3 __asm__ ("rdx"); \
1626 register unsigned long r2 __asm__ ("rsi"); \
1627 register unsigned long r1 __asm__ ("rdi"); \
1628 if (narg >= 6) r6 = (unsigned long)(arg6); \
1629 if (narg >= 5) r5 = (unsigned long)(arg5); \
1630 if (narg >= 4) r4 = (unsigned long)(arg4); \
1631 if (narg >= 3) r3 = (unsigned long)(arg3); \
1632 if (narg >= 2) r2 = (unsigned long)(arg2); \
1633 if (narg >= 1) r1 = (unsigned long)(arg1); \
1634 __asm__ __volatile__ ( \
1635 "syscall\n\t" \
1636 : "=a" (res) \
1637 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1638 : "cc", "r11", "cx", "memory"); \
1639 errno = -res; \
1640 res; \
1641 })
1642
1643#endif
1644
1645#ifdef ev_syscall
1646 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1647 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1648 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1649 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1650 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1651 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1652 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1653#else
1654 #define ev_syscall0(nr) syscall (nr)
1655 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1656 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1657 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1658 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1659 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1660 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1661#endif
1662
1663#endif
1664
1665/*****************************************************************************/
1251 1666
1252#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1667#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1253 1668
1254#if EV_MINPRI == EV_MAXPRI 1669#if EV_MINPRI == EV_MAXPRI
1255# define ABSPRI(w) (((W)w), 0) 1670# define ABSPRI(w) (((W)w), 0)
1256#else 1671#else
1257# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1672# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1258#endif 1673#endif
1259 1674
1260#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1675#define EMPTY /* required for microsofts broken pseudo-c compiler */
1261#define EMPTY2(a,b) /* used to suppress some warnings */
1262 1676
1263typedef ev_watcher *W; 1677typedef ev_watcher *W;
1264typedef ev_watcher_list *WL; 1678typedef ev_watcher_list *WL;
1265typedef ev_watcher_time *WT; 1679typedef ev_watcher_time *WT;
1266 1680
… …
1291# include "ev_win32.c" 1705# include "ev_win32.c"
1292#endif 1706#endif
1293 1707
1294/*****************************************************************************/ 1708/*****************************************************************************/
1295 1709
1710#if EV_USE_LINUXAIO
1711# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1712#endif
1713
1296/* define a suitable floor function (only used by periodics atm) */ 1714/* define a suitable floor function (only used by periodics atm) */
1297 1715
1298#if EV_USE_FLOOR 1716#if EV_USE_FLOOR
1299# include <math.h> 1717# include <math.h>
1300# define ev_floor(v) floor (v) 1718# define ev_floor(v) floor (v)
1301#else 1719#else
1302 1720
1303#include <float.h> 1721#include <float.h>
1304 1722
1305/* a floor() replacement function, should be independent of ev_tstamp type */ 1723/* a floor() replacement function, should be independent of ev_tstamp type */
1724ecb_noinline
1306static ev_tstamp noinline 1725static ev_tstamp
1307ev_floor (ev_tstamp v) 1726ev_floor (ev_tstamp v)
1308{ 1727{
1309 /* the choice of shift factor is not terribly important */ 1728 /* the choice of shift factor is not terribly important */
1310#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1729#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1311 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1730 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1312#else 1731#else
1313 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1732 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1314#endif 1733#endif
1315 1734
1735 /* special treatment for negative arguments */
1736 if (ecb_expect_false (v < 0.))
1737 {
1738 ev_tstamp f = -ev_floor (-v);
1739
1740 return f - (f == v ? 0 : 1);
1741 }
1742
1316 /* argument too large for an unsigned long? */ 1743 /* argument too large for an unsigned long? then reduce it */
1317 if (expect_false (v >= shift)) 1744 if (ecb_expect_false (v >= shift))
1318 { 1745 {
1319 ev_tstamp f; 1746 ev_tstamp f;
1320 1747
1321 if (v == v - 1.) 1748 if (v == v - 1.)
1322 return v; /* very large number */ 1749 return v; /* very large numbers are assumed to be integer */
1323 1750
1324 f = shift * ev_floor (v * (1. / shift)); 1751 f = shift * ev_floor (v * (1. / shift));
1325 return f + ev_floor (v - f); 1752 return f + ev_floor (v - f);
1326 } 1753 }
1327 1754
1328 /* special treatment for negative args? */
1329 if (expect_false (v < 0.))
1330 {
1331 ev_tstamp f = -ev_floor (-v);
1332
1333 return f - (f == v ? 0 : 1);
1334 }
1335
1336 /* fits into an unsigned long */ 1755 /* fits into an unsigned long */
1337 return (unsigned long)v; 1756 return (unsigned long)v;
1338} 1757}
1339 1758
1340#endif 1759#endif
… …
1343 1762
1344#ifdef __linux 1763#ifdef __linux
1345# include <sys/utsname.h> 1764# include <sys/utsname.h>
1346#endif 1765#endif
1347 1766
1348static unsigned int noinline ecb_cold 1767ecb_noinline ecb_cold
1768static unsigned int
1349ev_linux_version (void) 1769ev_linux_version (void)
1350{ 1770{
1351#ifdef __linux 1771#ifdef __linux
1352 unsigned int v = 0; 1772 unsigned int v = 0;
1353 struct utsname buf; 1773 struct utsname buf;
… …
1382} 1802}
1383 1803
1384/*****************************************************************************/ 1804/*****************************************************************************/
1385 1805
1386#if EV_AVOID_STDIO 1806#if EV_AVOID_STDIO
1387static void noinline ecb_cold 1807ecb_noinline ecb_cold
1808static void
1388ev_printerr (const char *msg) 1809ev_printerr (const char *msg)
1389{ 1810{
1390 write (STDERR_FILENO, msg, strlen (msg)); 1811 write (STDERR_FILENO, msg, strlen (msg));
1391} 1812}
1392#endif 1813#endif
1393 1814
1394static void (*syserr_cb)(const char *msg) EV_THROW; 1815static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1395 1816
1396void ecb_cold 1817ecb_cold
1818void
1397ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1819ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1398{ 1820{
1399 syserr_cb = cb; 1821 syserr_cb = cb;
1400} 1822}
1401 1823
1402static void noinline ecb_cold 1824ecb_noinline ecb_cold
1825static void
1403ev_syserr (const char *msg) 1826ev_syserr (const char *msg)
1404{ 1827{
1405 if (!msg) 1828 if (!msg)
1406 msg = "(libev) system error"; 1829 msg = "(libev) system error";
1407 1830
… …
1420 abort (); 1843 abort ();
1421 } 1844 }
1422} 1845}
1423 1846
1424static void * 1847static void *
1425ev_realloc_emul (void *ptr, long size) EV_THROW 1848ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1426{ 1849{
1427 /* some systems, notably openbsd and darwin, fail to properly 1850 /* some systems, notably openbsd and darwin, fail to properly
1428 * implement realloc (x, 0) (as required by both ansi c-89 and 1851 * implement realloc (x, 0) (as required by both ansi c-89 and
1429 * the single unix specification, so work around them here. 1852 * the single unix specification, so work around them here.
1430 * recently, also (at least) fedora and debian started breaking it, 1853 * recently, also (at least) fedora and debian started breaking it,
… …
1436 1859
1437 free (ptr); 1860 free (ptr);
1438 return 0; 1861 return 0;
1439} 1862}
1440 1863
1441static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1864static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1442 1865
1443void ecb_cold 1866ecb_cold
1867void
1444ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1868ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1445{ 1869{
1446 alloc = cb; 1870 alloc = cb;
1447} 1871}
1448 1872
1449inline_speed void * 1873inline_speed void *
… …
1476typedef struct 1900typedef struct
1477{ 1901{
1478 WL head; 1902 WL head;
1479 unsigned char events; /* the events watched for */ 1903 unsigned char events; /* the events watched for */
1480 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1904 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 */ 1905 unsigned char emask; /* some backends store the actual kernel mask in here */
1482 unsigned char unused; 1906 unsigned char eflags; /* flags field for use by backends */
1483#if EV_USE_EPOLL 1907#if EV_USE_EPOLL
1484 unsigned int egen; /* generation counter to counter epoll bugs */ 1908 unsigned int egen; /* generation counter to counter epoll bugs */
1485#endif 1909#endif
1486#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1910#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1487 SOCKET handle; 1911 SOCKET handle;
… …
1551 static int ev_default_loop_ptr; 1975 static int ev_default_loop_ptr;
1552 1976
1553#endif 1977#endif
1554 1978
1555#if EV_FEATURE_API 1979#if EV_FEATURE_API
1556# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1980# 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) 1981# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1558# define EV_INVOKE_PENDING invoke_cb (EV_A) 1982# define EV_INVOKE_PENDING invoke_cb (EV_A)
1559#else 1983#else
1560# define EV_RELEASE_CB (void)0 1984# define EV_RELEASE_CB (void)0
1561# define EV_ACQUIRE_CB (void)0 1985# define EV_ACQUIRE_CB (void)0
1562# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1986# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1566 1990
1567/*****************************************************************************/ 1991/*****************************************************************************/
1568 1992
1569#ifndef EV_HAVE_EV_TIME 1993#ifndef EV_HAVE_EV_TIME
1570ev_tstamp 1994ev_tstamp
1571ev_time (void) EV_THROW 1995ev_time (void) EV_NOEXCEPT
1572{ 1996{
1573#if EV_USE_REALTIME 1997#if EV_USE_REALTIME
1574 if (expect_true (have_realtime)) 1998 if (ecb_expect_true (have_realtime))
1575 { 1999 {
1576 struct timespec ts; 2000 struct timespec ts;
1577 clock_gettime (CLOCK_REALTIME, &ts); 2001 clock_gettime (CLOCK_REALTIME, &ts);
1578 return ts.tv_sec + ts.tv_nsec * 1e-9; 2002 return EV_TS_GET (ts);
1579 } 2003 }
1580#endif 2004#endif
1581 2005
1582 struct timeval tv; 2006 struct timeval tv;
1583 gettimeofday (&tv, 0); 2007 gettimeofday (&tv, 0);
1584 return tv.tv_sec + tv.tv_usec * 1e-6; 2008 return EV_TV_GET (tv);
1585} 2009}
1586#endif 2010#endif
1587 2011
1588inline_size ev_tstamp 2012inline_size ev_tstamp
1589get_clock (void) 2013get_clock (void)
1590{ 2014{
1591#if EV_USE_MONOTONIC 2015#if EV_USE_MONOTONIC
1592 if (expect_true (have_monotonic)) 2016 if (ecb_expect_true (have_monotonic))
1593 { 2017 {
1594 struct timespec ts; 2018 struct timespec ts;
1595 clock_gettime (CLOCK_MONOTONIC, &ts); 2019 clock_gettime (CLOCK_MONOTONIC, &ts);
1596 return ts.tv_sec + ts.tv_nsec * 1e-9; 2020 return EV_TS_GET (ts);
1597 } 2021 }
1598#endif 2022#endif
1599 2023
1600 return ev_time (); 2024 return ev_time ();
1601} 2025}
1602 2026
1603#if EV_MULTIPLICITY 2027#if EV_MULTIPLICITY
1604ev_tstamp 2028ev_tstamp
1605ev_now (EV_P) EV_THROW 2029ev_now (EV_P) EV_NOEXCEPT
1606{ 2030{
1607 return ev_rt_now; 2031 return ev_rt_now;
1608} 2032}
1609#endif 2033#endif
1610 2034
1611void 2035void
1612ev_sleep (ev_tstamp delay) EV_THROW 2036ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1613{ 2037{
1614 if (delay > 0.) 2038 if (delay > 0.)
1615 { 2039 {
1616#if EV_USE_NANOSLEEP 2040#if EV_USE_NANOSLEEP
1617 struct timespec ts; 2041 struct timespec ts;
1618 2042
1619 EV_TS_SET (ts, delay); 2043 EV_TS_SET (ts, delay);
1620 nanosleep (&ts, 0); 2044 nanosleep (&ts, 0);
1621#elif defined _WIN32 2045#elif defined _WIN32
2046 /* maybe this should round up, as ms is very low resolution */
2047 /* compared to select (µs) or nanosleep (ns) */
1622 Sleep ((unsigned long)(delay * 1e3)); 2048 Sleep ((unsigned long)(EV_TS_TO_MS (delay)));
1623#else 2049#else
1624 struct timeval tv; 2050 struct timeval tv;
1625 2051
1626 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2052 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1627 /* something not guaranteed by newer posix versions, but guaranteed */ 2053 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1657 } 2083 }
1658 2084
1659 return ncur; 2085 return ncur;
1660} 2086}
1661 2087
1662static void * noinline ecb_cold 2088ecb_noinline ecb_cold
2089static void *
1663array_realloc (int elem, void *base, int *cur, int cnt) 2090array_realloc (int elem, void *base, int *cur, int cnt)
1664{ 2091{
1665 *cur = array_nextsize (elem, *cur, cnt); 2092 *cur = array_nextsize (elem, *cur, cnt);
1666 return ev_realloc (base, elem * *cur); 2093 return ev_realloc (base, elem * *cur);
1667} 2094}
1668 2095
2096#define array_needsize_noinit(base,offset,count)
2097
1669#define array_init_zero(base,count) \ 2098#define array_needsize_zerofill(base,offset,count) \
1670 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2099 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1671 2100
1672#define array_needsize(type,base,cur,cnt,init) \ 2101#define array_needsize(type,base,cur,cnt,init) \
1673 if (expect_false ((cnt) > (cur))) \ 2102 if (ecb_expect_false ((cnt) > (cur))) \
1674 { \ 2103 { \
1675 int ecb_unused ocur_ = (cur); \ 2104 ecb_unused int ocur_ = (cur); \
1676 (base) = (type *)array_realloc \ 2105 (base) = (type *)array_realloc \
1677 (sizeof (type), (base), &(cur), (cnt)); \ 2106 (sizeof (type), (base), &(cur), (cnt)); \
1678 init ((base) + (ocur_), (cur) - ocur_); \ 2107 init ((base), ocur_, ((cur) - ocur_)); \
1679 } 2108 }
1680 2109
1681#if 0 2110#if 0
1682#define array_slim(type,stem) \ 2111#define array_slim(type,stem) \
1683 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2112 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 2121 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1693 2122
1694/*****************************************************************************/ 2123/*****************************************************************************/
1695 2124
1696/* dummy callback for pending events */ 2125/* dummy callback for pending events */
1697static void noinline 2126ecb_noinline
2127static void
1698pendingcb (EV_P_ ev_prepare *w, int revents) 2128pendingcb (EV_P_ ev_prepare *w, int revents)
1699{ 2129{
1700} 2130}
1701 2131
1702void noinline 2132ecb_noinline
2133void
1703ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2134ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1704{ 2135{
1705 W w_ = (W)w; 2136 W w_ = (W)w;
1706 int pri = ABSPRI (w_); 2137 int pri = ABSPRI (w_);
1707 2138
1708 if (expect_false (w_->pending)) 2139 if (ecb_expect_false (w_->pending))
1709 pendings [pri][w_->pending - 1].events |= revents; 2140 pendings [pri][w_->pending - 1].events |= revents;
1710 else 2141 else
1711 { 2142 {
1712 w_->pending = ++pendingcnt [pri]; 2143 w_->pending = ++pendingcnt [pri];
1713 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2144 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1714 pendings [pri][w_->pending - 1].w = w_; 2145 pendings [pri][w_->pending - 1].w = w_;
1715 pendings [pri][w_->pending - 1].events = revents; 2146 pendings [pri][w_->pending - 1].events = revents;
1716 } 2147 }
1717 2148
1718 pendingpri = NUMPRI - 1; 2149 pendingpri = NUMPRI - 1;
1719} 2150}
1720 2151
1721inline_speed void 2152inline_speed void
1722feed_reverse (EV_P_ W w) 2153feed_reverse (EV_P_ W w)
1723{ 2154{
1724 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2155 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1725 rfeeds [rfeedcnt++] = w; 2156 rfeeds [rfeedcnt++] = w;
1726} 2157}
1727 2158
1728inline_size void 2159inline_size void
1729feed_reverse_done (EV_P_ int revents) 2160feed_reverse_done (EV_P_ int revents)
… …
1764inline_speed void 2195inline_speed void
1765fd_event (EV_P_ int fd, int revents) 2196fd_event (EV_P_ int fd, int revents)
1766{ 2197{
1767 ANFD *anfd = anfds + fd; 2198 ANFD *anfd = anfds + fd;
1768 2199
1769 if (expect_true (!anfd->reify)) 2200 if (ecb_expect_true (!anfd->reify))
1770 fd_event_nocheck (EV_A_ fd, revents); 2201 fd_event_nocheck (EV_A_ fd, revents);
1771} 2202}
1772 2203
1773void 2204void
1774ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2205ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1775{ 2206{
1776 if (fd >= 0 && fd < anfdmax) 2207 if (fd >= 0 && fd < anfdmax)
1777 fd_event_nocheck (EV_A_ fd, revents); 2208 fd_event_nocheck (EV_A_ fd, revents);
1778} 2209}
1779 2210
… …
1816 ev_io *w; 2247 ev_io *w;
1817 2248
1818 unsigned char o_events = anfd->events; 2249 unsigned char o_events = anfd->events;
1819 unsigned char o_reify = anfd->reify; 2250 unsigned char o_reify = anfd->reify;
1820 2251
1821 anfd->reify = 0; 2252 anfd->reify = 0;
1822 2253
1823 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2254 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1824 { 2255 {
1825 anfd->events = 0; 2256 anfd->events = 0;
1826 2257
1827 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2258 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1828 anfd->events |= (unsigned char)w->events; 2259 anfd->events |= (unsigned char)w->events;
… …
1837 2268
1838 fdchangecnt = 0; 2269 fdchangecnt = 0;
1839} 2270}
1840 2271
1841/* something about the given fd changed */ 2272/* something about the given fd changed */
1842inline_size void 2273inline_size
2274void
1843fd_change (EV_P_ int fd, int flags) 2275fd_change (EV_P_ int fd, int flags)
1844{ 2276{
1845 unsigned char reify = anfds [fd].reify; 2277 unsigned char reify = anfds [fd].reify;
1846 anfds [fd].reify |= flags; 2278 anfds [fd].reify |= flags;
1847 2279
1848 if (expect_true (!reify)) 2280 if (ecb_expect_true (!reify))
1849 { 2281 {
1850 ++fdchangecnt; 2282 ++fdchangecnt;
1851 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2283 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1852 fdchanges [fdchangecnt - 1] = fd; 2284 fdchanges [fdchangecnt - 1] = fd;
1853 } 2285 }
1854} 2286}
1855 2287
1856/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2288/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1857inline_speed void ecb_cold 2289inline_speed ecb_cold void
1858fd_kill (EV_P_ int fd) 2290fd_kill (EV_P_ int fd)
1859{ 2291{
1860 ev_io *w; 2292 ev_io *w;
1861 2293
1862 while ((w = (ev_io *)anfds [fd].head)) 2294 while ((w = (ev_io *)anfds [fd].head))
… …
1865 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2297 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1866 } 2298 }
1867} 2299}
1868 2300
1869/* check whether the given fd is actually valid, for error recovery */ 2301/* check whether the given fd is actually valid, for error recovery */
1870inline_size int ecb_cold 2302inline_size ecb_cold int
1871fd_valid (int fd) 2303fd_valid (int fd)
1872{ 2304{
1873#ifdef _WIN32 2305#ifdef _WIN32
1874 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2306 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1875#else 2307#else
1876 return fcntl (fd, F_GETFD) != -1; 2308 return fcntl (fd, F_GETFD) != -1;
1877#endif 2309#endif
1878} 2310}
1879 2311
1880/* called on EBADF to verify fds */ 2312/* called on EBADF to verify fds */
1881static void noinline ecb_cold 2313ecb_noinline ecb_cold
2314static void
1882fd_ebadf (EV_P) 2315fd_ebadf (EV_P)
1883{ 2316{
1884 int fd; 2317 int fd;
1885 2318
1886 for (fd = 0; fd < anfdmax; ++fd) 2319 for (fd = 0; fd < anfdmax; ++fd)
… …
1888 if (!fd_valid (fd) && errno == EBADF) 2321 if (!fd_valid (fd) && errno == EBADF)
1889 fd_kill (EV_A_ fd); 2322 fd_kill (EV_A_ fd);
1890} 2323}
1891 2324
1892/* called on ENOMEM in select/poll to kill some fds and retry */ 2325/* called on ENOMEM in select/poll to kill some fds and retry */
1893static void noinline ecb_cold 2326ecb_noinline ecb_cold
2327static void
1894fd_enomem (EV_P) 2328fd_enomem (EV_P)
1895{ 2329{
1896 int fd; 2330 int fd;
1897 2331
1898 for (fd = anfdmax; fd--; ) 2332 for (fd = anfdmax; fd--; )
… …
1902 break; 2336 break;
1903 } 2337 }
1904} 2338}
1905 2339
1906/* usually called after fork if backend needs to re-arm all fds from scratch */ 2340/* usually called after fork if backend needs to re-arm all fds from scratch */
1907static void noinline 2341ecb_noinline
2342static void
1908fd_rearm_all (EV_P) 2343fd_rearm_all (EV_P)
1909{ 2344{
1910 int fd; 2345 int fd;
1911 2346
1912 for (fd = 0; fd < anfdmax; ++fd) 2347 for (fd = 0; fd < anfdmax; ++fd)
… …
1965 ev_tstamp minat; 2400 ev_tstamp minat;
1966 ANHE *minpos; 2401 ANHE *minpos;
1967 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2402 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1968 2403
1969 /* find minimum child */ 2404 /* find minimum child */
1970 if (expect_true (pos + DHEAP - 1 < E)) 2405 if (ecb_expect_true (pos + DHEAP - 1 < E))
1971 { 2406 {
1972 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2407 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1973 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2408 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1974 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2409 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1975 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2410 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1976 } 2411 }
1977 else if (pos < E) 2412 else if (pos < E)
1978 { 2413 {
1979 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2414 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1980 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2415 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1981 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2416 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1982 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2417 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1983 } 2418 }
1984 else 2419 else
1985 break; 2420 break;
1986 2421
1987 if (ANHE_at (he) <= minat) 2422 if (ANHE_at (he) <= minat)
… …
1995 2430
1996 heap [k] = he; 2431 heap [k] = he;
1997 ev_active (ANHE_w (he)) = k; 2432 ev_active (ANHE_w (he)) = k;
1998} 2433}
1999 2434
2000#else /* 4HEAP */ 2435#else /* not 4HEAP */
2001 2436
2002#define HEAP0 1 2437#define HEAP0 1
2003#define HPARENT(k) ((k) >> 1) 2438#define HPARENT(k) ((k) >> 1)
2004#define UPHEAP_DONE(p,k) (!(p)) 2439#define UPHEAP_DONE(p,k) (!(p))
2005 2440
… …
2093 2528
2094/*****************************************************************************/ 2529/*****************************************************************************/
2095 2530
2096#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2531#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2097 2532
2098static void noinline ecb_cold 2533ecb_noinline ecb_cold
2534static void
2099evpipe_init (EV_P) 2535evpipe_init (EV_P)
2100{ 2536{
2101 if (!ev_is_active (&pipe_w)) 2537 if (!ev_is_active (&pipe_w))
2102 { 2538 {
2103 int fds [2]; 2539 int fds [2];
… …
2143inline_speed void 2579inline_speed void
2144evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2580evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2145{ 2581{
2146 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2582 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2147 2583
2148 if (expect_true (*flag)) 2584 if (ecb_expect_true (*flag))
2149 return; 2585 return;
2150 2586
2151 *flag = 1; 2587 *flag = 1;
2152 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2588 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2153 2589
… …
2174#endif 2610#endif
2175 { 2611 {
2176#ifdef _WIN32 2612#ifdef _WIN32
2177 WSABUF buf; 2613 WSABUF buf;
2178 DWORD sent; 2614 DWORD sent;
2179 buf.buf = &buf; 2615 buf.buf = (char *)&buf;
2180 buf.len = 1; 2616 buf.len = 1;
2181 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2617 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2182#else 2618#else
2183 write (evpipe [1], &(evpipe [1]), 1); 2619 write (evpipe [1], &(evpipe [1]), 1);
2184#endif 2620#endif
… …
2230 sig_pending = 0; 2666 sig_pending = 0;
2231 2667
2232 ECB_MEMORY_FENCE; 2668 ECB_MEMORY_FENCE;
2233 2669
2234 for (i = EV_NSIG - 1; i--; ) 2670 for (i = EV_NSIG - 1; i--; )
2235 if (expect_false (signals [i].pending)) 2671 if (ecb_expect_false (signals [i].pending))
2236 ev_feed_signal_event (EV_A_ i + 1); 2672 ev_feed_signal_event (EV_A_ i + 1);
2237 } 2673 }
2238#endif 2674#endif
2239 2675
2240#if EV_ASYNC_ENABLE 2676#if EV_ASYNC_ENABLE
… …
2256} 2692}
2257 2693
2258/*****************************************************************************/ 2694/*****************************************************************************/
2259 2695
2260void 2696void
2261ev_feed_signal (int signum) EV_THROW 2697ev_feed_signal (int signum) EV_NOEXCEPT
2262{ 2698{
2263#if EV_MULTIPLICITY 2699#if EV_MULTIPLICITY
2264 EV_P; 2700 EV_P;
2265 ECB_MEMORY_FENCE_ACQUIRE; 2701 ECB_MEMORY_FENCE_ACQUIRE;
2266 EV_A = signals [signum - 1].loop; 2702 EV_A = signals [signum - 1].loop;
… …
2281#endif 2717#endif
2282 2718
2283 ev_feed_signal (signum); 2719 ev_feed_signal (signum);
2284} 2720}
2285 2721
2286void noinline 2722ecb_noinline
2723void
2287ev_feed_signal_event (EV_P_ int signum) EV_THROW 2724ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2288{ 2725{
2289 WL w; 2726 WL w;
2290 2727
2291 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2728 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2292 return; 2729 return;
2293 2730
2294 --signum; 2731 --signum;
2295 2732
2296#if EV_MULTIPLICITY 2733#if EV_MULTIPLICITY
2297 /* it is permissible to try to feed a signal to the wrong loop */ 2734 /* 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 */ 2735 /* or, likely more useful, feeding a signal nobody is waiting for */
2299 2736
2300 if (expect_false (signals [signum].loop != EV_A)) 2737 if (ecb_expect_false (signals [signum].loop != EV_A))
2301 return; 2738 return;
2302#endif 2739#endif
2303 2740
2304 signals [signum].pending = 0; 2741 signals [signum].pending = 0;
2305 ECB_MEMORY_FENCE_RELEASE; 2742 ECB_MEMORY_FENCE_RELEASE;
… …
2401# include "ev_kqueue.c" 2838# include "ev_kqueue.c"
2402#endif 2839#endif
2403#if EV_USE_EPOLL 2840#if EV_USE_EPOLL
2404# include "ev_epoll.c" 2841# include "ev_epoll.c"
2405#endif 2842#endif
2843#if EV_USE_LINUXAIO
2844# include "ev_linuxaio.c"
2845#endif
2846#if EV_USE_IOURING
2847# include "ev_iouring.c"
2848#endif
2406#if EV_USE_POLL 2849#if EV_USE_POLL
2407# include "ev_poll.c" 2850# include "ev_poll.c"
2408#endif 2851#endif
2409#if EV_USE_SELECT 2852#if EV_USE_SELECT
2410# include "ev_select.c" 2853# include "ev_select.c"
2411#endif 2854#endif
2412 2855
2413int ecb_cold 2856ecb_cold int
2414ev_version_major (void) EV_THROW 2857ev_version_major (void) EV_NOEXCEPT
2415{ 2858{
2416 return EV_VERSION_MAJOR; 2859 return EV_VERSION_MAJOR;
2417} 2860}
2418 2861
2419int ecb_cold 2862ecb_cold int
2420ev_version_minor (void) EV_THROW 2863ev_version_minor (void) EV_NOEXCEPT
2421{ 2864{
2422 return EV_VERSION_MINOR; 2865 return EV_VERSION_MINOR;
2423} 2866}
2424 2867
2425/* return true if we are running with elevated privileges and should ignore env variables */ 2868/* return true if we are running with elevated privileges and should ignore env variables */
2426int inline_size ecb_cold 2869inline_size ecb_cold int
2427enable_secure (void) 2870enable_secure (void)
2428{ 2871{
2429#ifdef _WIN32 2872#ifdef _WIN32
2430 return 0; 2873 return 0;
2431#else 2874#else
2432 return getuid () != geteuid () 2875 return getuid () != geteuid ()
2433 || getgid () != getegid (); 2876 || getgid () != getegid ();
2434#endif 2877#endif
2435} 2878}
2436 2879
2437unsigned int ecb_cold 2880ecb_cold
2881unsigned int
2438ev_supported_backends (void) EV_THROW 2882ev_supported_backends (void) EV_NOEXCEPT
2439{ 2883{
2440 unsigned int flags = 0; 2884 unsigned int flags = 0;
2441 2885
2442 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2886 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2443 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2887 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2444 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2888 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2889 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2890 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2445 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2891 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2446 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2892 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2447 2893
2448 return flags; 2894 return flags;
2449} 2895}
2450 2896
2451unsigned int ecb_cold 2897ecb_cold
2898unsigned int
2452ev_recommended_backends (void) EV_THROW 2899ev_recommended_backends (void) EV_NOEXCEPT
2453{ 2900{
2454 unsigned int flags = ev_supported_backends (); 2901 unsigned int flags = ev_supported_backends ();
2455 2902
2456#ifndef __NetBSD__ 2903#ifndef __NetBSD__
2457 /* kqueue is borked on everything but netbsd apparently */ 2904 /* kqueue is borked on everything but netbsd apparently */
… …
2465#endif 2912#endif
2466#ifdef __FreeBSD__ 2913#ifdef __FreeBSD__
2467 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2914 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2468#endif 2915#endif
2469 2916
2917 /* TODO: linuxaio is very experimental */
2918#if !EV_RECOMMEND_LINUXAIO
2919 flags &= ~EVBACKEND_LINUXAIO;
2920#endif
2921 /* TODO: linuxaio is super experimental */
2922#if !EV_RECOMMEND_IOURING
2923 flags &= ~EVBACKEND_IOURING;
2924#endif
2925
2470 return flags; 2926 return flags;
2471} 2927}
2472 2928
2473unsigned int ecb_cold 2929ecb_cold
2930unsigned int
2474ev_embeddable_backends (void) EV_THROW 2931ev_embeddable_backends (void) EV_NOEXCEPT
2475{ 2932{
2476 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2933 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2477 2934
2478 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2935 /* 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 */ 2936 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2480 flags &= ~EVBACKEND_EPOLL; 2937 flags &= ~EVBACKEND_EPOLL;
2481 2938
2939 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2940
2941 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2942 * because our backend_fd is the epoll fd we need as fallback.
2943 * if the kernel ever is fixed, this might change...
2944 */
2945
2482 return flags; 2946 return flags;
2483} 2947}
2484 2948
2485unsigned int 2949unsigned int
2486ev_backend (EV_P) EV_THROW 2950ev_backend (EV_P) EV_NOEXCEPT
2487{ 2951{
2488 return backend; 2952 return backend;
2489} 2953}
2490 2954
2491#if EV_FEATURE_API 2955#if EV_FEATURE_API
2492unsigned int 2956unsigned int
2493ev_iteration (EV_P) EV_THROW 2957ev_iteration (EV_P) EV_NOEXCEPT
2494{ 2958{
2495 return loop_count; 2959 return loop_count;
2496} 2960}
2497 2961
2498unsigned int 2962unsigned int
2499ev_depth (EV_P) EV_THROW 2963ev_depth (EV_P) EV_NOEXCEPT
2500{ 2964{
2501 return loop_depth; 2965 return loop_depth;
2502} 2966}
2503 2967
2504void 2968void
2505ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2969ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2506{ 2970{
2507 io_blocktime = interval; 2971 io_blocktime = interval;
2508} 2972}
2509 2973
2510void 2974void
2511ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2975ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2512{ 2976{
2513 timeout_blocktime = interval; 2977 timeout_blocktime = interval;
2514} 2978}
2515 2979
2516void 2980void
2517ev_set_userdata (EV_P_ void *data) EV_THROW 2981ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2518{ 2982{
2519 userdata = data; 2983 userdata = data;
2520} 2984}
2521 2985
2522void * 2986void *
2523ev_userdata (EV_P) EV_THROW 2987ev_userdata (EV_P) EV_NOEXCEPT
2524{ 2988{
2525 return userdata; 2989 return userdata;
2526} 2990}
2527 2991
2528void 2992void
2529ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2993ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2530{ 2994{
2531 invoke_cb = invoke_pending_cb; 2995 invoke_cb = invoke_pending_cb;
2532} 2996}
2533 2997
2534void 2998void
2535ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2999ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2536{ 3000{
2537 release_cb = release; 3001 release_cb = release;
2538 acquire_cb = acquire; 3002 acquire_cb = acquire;
2539} 3003}
2540#endif 3004#endif
2541 3005
2542/* initialise a loop structure, must be zero-initialised */ 3006/* initialise a loop structure, must be zero-initialised */
2543static void noinline ecb_cold 3007ecb_noinline ecb_cold
3008static void
2544loop_init (EV_P_ unsigned int flags) EV_THROW 3009loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2545{ 3010{
2546 if (!backend) 3011 if (!backend)
2547 { 3012 {
2548 origflags = flags; 3013 origflags = flags;
2549 3014
… …
2607 3072
2608 if (!(flags & EVBACKEND_MASK)) 3073 if (!(flags & EVBACKEND_MASK))
2609 flags |= ev_recommended_backends (); 3074 flags |= ev_recommended_backends ();
2610 3075
2611#if EV_USE_IOCP 3076#if EV_USE_IOCP
2612 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3077 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2613#endif 3078#endif
2614#if EV_USE_PORT 3079#if EV_USE_PORT
2615 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3080 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2616#endif 3081#endif
2617#if EV_USE_KQUEUE 3082#if EV_USE_KQUEUE
2618 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3083 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3084#endif
3085#if EV_USE_IOURING
3086 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3087#endif
3088#if EV_USE_LINUXAIO
3089 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2619#endif 3090#endif
2620#if EV_USE_EPOLL 3091#if EV_USE_EPOLL
2621 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3092 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2622#endif 3093#endif
2623#if EV_USE_POLL 3094#if EV_USE_POLL
2624 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3095 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2625#endif 3096#endif
2626#if EV_USE_SELECT 3097#if EV_USE_SELECT
2627 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3098 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2628#endif 3099#endif
2629 3100
2630 ev_prepare_init (&pending_w, pendingcb); 3101 ev_prepare_init (&pending_w, pendingcb);
2631 3102
2632#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3103#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2635#endif 3106#endif
2636 } 3107 }
2637} 3108}
2638 3109
2639/* free up a loop structure */ 3110/* free up a loop structure */
2640void ecb_cold 3111ecb_cold
3112void
2641ev_loop_destroy (EV_P) 3113ev_loop_destroy (EV_P)
2642{ 3114{
2643 int i; 3115 int i;
2644 3116
2645#if EV_MULTIPLICITY 3117#if EV_MULTIPLICITY
… …
2648 return; 3120 return;
2649#endif 3121#endif
2650 3122
2651#if EV_CLEANUP_ENABLE 3123#if EV_CLEANUP_ENABLE
2652 /* queue cleanup watchers (and execute them) */ 3124 /* queue cleanup watchers (and execute them) */
2653 if (expect_false (cleanupcnt)) 3125 if (ecb_expect_false (cleanupcnt))
2654 { 3126 {
2655 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3127 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2656 EV_INVOKE_PENDING; 3128 EV_INVOKE_PENDING;
2657 } 3129 }
2658#endif 3130#endif
… …
2686 3158
2687 if (backend_fd >= 0) 3159 if (backend_fd >= 0)
2688 close (backend_fd); 3160 close (backend_fd);
2689 3161
2690#if EV_USE_IOCP 3162#if EV_USE_IOCP
2691 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3163 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2692#endif 3164#endif
2693#if EV_USE_PORT 3165#if EV_USE_PORT
2694 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3166 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2695#endif 3167#endif
2696#if EV_USE_KQUEUE 3168#if EV_USE_KQUEUE
2697 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3169 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3170#endif
3171#if EV_USE_IOURING
3172 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3173#endif
3174#if EV_USE_LINUXAIO
3175 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2698#endif 3176#endif
2699#if EV_USE_EPOLL 3177#if EV_USE_EPOLL
2700 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3178 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2701#endif 3179#endif
2702#if EV_USE_POLL 3180#if EV_USE_POLL
2703 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3181 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2704#endif 3182#endif
2705#if EV_USE_SELECT 3183#if EV_USE_SELECT
2706 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3184 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2707#endif 3185#endif
2708 3186
2709 for (i = NUMPRI; i--; ) 3187 for (i = NUMPRI; i--; )
2710 { 3188 {
2711 array_free (pending, [i]); 3189 array_free (pending, [i]);
… …
2753 3231
2754inline_size void 3232inline_size void
2755loop_fork (EV_P) 3233loop_fork (EV_P)
2756{ 3234{
2757#if EV_USE_PORT 3235#if EV_USE_PORT
2758 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3236 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2759#endif 3237#endif
2760#if EV_USE_KQUEUE 3238#if EV_USE_KQUEUE
2761 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3239 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3240#endif
3241#if EV_USE_IOURING
3242 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3243#endif
3244#if EV_USE_LINUXAIO
3245 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2762#endif 3246#endif
2763#if EV_USE_EPOLL 3247#if EV_USE_EPOLL
2764 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3248 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2765#endif 3249#endif
2766#if EV_USE_INOTIFY 3250#if EV_USE_INOTIFY
2767 infy_fork (EV_A); 3251 infy_fork (EV_A);
2768#endif 3252#endif
2769 3253
2770#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3254#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2771 if (ev_is_active (&pipe_w)) 3255 if (ev_is_active (&pipe_w) && postfork != 2)
2772 { 3256 {
2773 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3257 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2774 3258
2775 ev_ref (EV_A); 3259 ev_ref (EV_A);
2776 ev_io_stop (EV_A_ &pipe_w); 3260 ev_io_stop (EV_A_ &pipe_w);
… …
2787 postfork = 0; 3271 postfork = 0;
2788} 3272}
2789 3273
2790#if EV_MULTIPLICITY 3274#if EV_MULTIPLICITY
2791 3275
3276ecb_cold
2792struct ev_loop * ecb_cold 3277struct ev_loop *
2793ev_loop_new (unsigned int flags) EV_THROW 3278ev_loop_new (unsigned int flags) EV_NOEXCEPT
2794{ 3279{
2795 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3280 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2796 3281
2797 memset (EV_A, 0, sizeof (struct ev_loop)); 3282 memset (EV_A, 0, sizeof (struct ev_loop));
2798 loop_init (EV_A_ flags); 3283 loop_init (EV_A_ flags);
… …
2805} 3290}
2806 3291
2807#endif /* multiplicity */ 3292#endif /* multiplicity */
2808 3293
2809#if EV_VERIFY 3294#if EV_VERIFY
2810static void noinline ecb_cold 3295ecb_noinline ecb_cold
3296static void
2811verify_watcher (EV_P_ W w) 3297verify_watcher (EV_P_ W w)
2812{ 3298{
2813 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3299 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2814 3300
2815 if (w->pending) 3301 if (w->pending)
2816 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3302 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2817} 3303}
2818 3304
2819static void noinline ecb_cold 3305ecb_noinline ecb_cold
3306static void
2820verify_heap (EV_P_ ANHE *heap, int N) 3307verify_heap (EV_P_ ANHE *heap, int N)
2821{ 3308{
2822 int i; 3309 int i;
2823 3310
2824 for (i = HEAP0; i < N + HEAP0; ++i) 3311 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2829 3316
2830 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3317 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2831 } 3318 }
2832} 3319}
2833 3320
2834static void noinline ecb_cold 3321ecb_noinline ecb_cold
3322static void
2835array_verify (EV_P_ W *ws, int cnt) 3323array_verify (EV_P_ W *ws, int cnt)
2836{ 3324{
2837 while (cnt--) 3325 while (cnt--)
2838 { 3326 {
2839 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3327 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2842} 3330}
2843#endif 3331#endif
2844 3332
2845#if EV_FEATURE_API 3333#if EV_FEATURE_API
2846void ecb_cold 3334void ecb_cold
2847ev_verify (EV_P) EV_THROW 3335ev_verify (EV_P) EV_NOEXCEPT
2848{ 3336{
2849#if EV_VERIFY 3337#if EV_VERIFY
2850 int i; 3338 int i;
2851 WL w, w2; 3339 WL w, w2;
2852 3340
… …
2928#endif 3416#endif
2929} 3417}
2930#endif 3418#endif
2931 3419
2932#if EV_MULTIPLICITY 3420#if EV_MULTIPLICITY
3421ecb_cold
2933struct ev_loop * ecb_cold 3422struct ev_loop *
2934#else 3423#else
2935int 3424int
2936#endif 3425#endif
2937ev_default_loop (unsigned int flags) EV_THROW 3426ev_default_loop (unsigned int flags) EV_NOEXCEPT
2938{ 3427{
2939 if (!ev_default_loop_ptr) 3428 if (!ev_default_loop_ptr)
2940 { 3429 {
2941#if EV_MULTIPLICITY 3430#if EV_MULTIPLICITY
2942 EV_P = ev_default_loop_ptr = &default_loop_struct; 3431 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2961 3450
2962 return ev_default_loop_ptr; 3451 return ev_default_loop_ptr;
2963} 3452}
2964 3453
2965void 3454void
2966ev_loop_fork (EV_P) EV_THROW 3455ev_loop_fork (EV_P) EV_NOEXCEPT
2967{ 3456{
2968 postfork = 1; 3457 postfork = 1;
2969} 3458}
2970 3459
2971/*****************************************************************************/ 3460/*****************************************************************************/
… …
2975{ 3464{
2976 EV_CB_INVOKE ((W)w, revents); 3465 EV_CB_INVOKE ((W)w, revents);
2977} 3466}
2978 3467
2979unsigned int 3468unsigned int
2980ev_pending_count (EV_P) EV_THROW 3469ev_pending_count (EV_P) EV_NOEXCEPT
2981{ 3470{
2982 int pri; 3471 int pri;
2983 unsigned int count = 0; 3472 unsigned int count = 0;
2984 3473
2985 for (pri = NUMPRI; pri--; ) 3474 for (pri = NUMPRI; pri--; )
2986 count += pendingcnt [pri]; 3475 count += pendingcnt [pri];
2987 3476
2988 return count; 3477 return count;
2989} 3478}
2990 3479
2991void noinline 3480ecb_noinline
3481void
2992ev_invoke_pending (EV_P) 3482ev_invoke_pending (EV_P)
2993{ 3483{
2994 pendingpri = NUMPRI; 3484 pendingpri = NUMPRI;
2995 3485
2996 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3486 do
2997 { 3487 {
2998 --pendingpri; 3488 --pendingpri;
2999 3489
3490 /* pendingpri possibly gets modified in the inner loop */
3000 while (pendingcnt [pendingpri]) 3491 while (pendingcnt [pendingpri])
3001 { 3492 {
3002 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3493 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3003 3494
3004 p->w->pending = 0; 3495 p->w->pending = 0;
3005 EV_CB_INVOKE (p->w, p->events); 3496 EV_CB_INVOKE (p->w, p->events);
3006 EV_FREQUENT_CHECK; 3497 EV_FREQUENT_CHECK;
3007 } 3498 }
3008 } 3499 }
3500 while (pendingpri);
3009} 3501}
3010 3502
3011#if EV_IDLE_ENABLE 3503#if EV_IDLE_ENABLE
3012/* make idle watchers pending. this handles the "call-idle */ 3504/* make idle watchers pending. this handles the "call-idle */
3013/* only when higher priorities are idle" logic */ 3505/* only when higher priorities are idle" logic */
3014inline_size void 3506inline_size void
3015idle_reify (EV_P) 3507idle_reify (EV_P)
3016{ 3508{
3017 if (expect_false (idleall)) 3509 if (ecb_expect_false (idleall))
3018 { 3510 {
3019 int pri; 3511 int pri;
3020 3512
3021 for (pri = NUMPRI; pri--; ) 3513 for (pri = NUMPRI; pri--; )
3022 { 3514 {
… …
3071 } 3563 }
3072} 3564}
3073 3565
3074#if EV_PERIODIC_ENABLE 3566#if EV_PERIODIC_ENABLE
3075 3567
3076static void noinline 3568ecb_noinline
3569static void
3077periodic_recalc (EV_P_ ev_periodic *w) 3570periodic_recalc (EV_P_ ev_periodic *w)
3078{ 3571{
3079 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3572 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); 3573 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3081 3574
… …
3083 while (at <= ev_rt_now) 3576 while (at <= ev_rt_now)
3084 { 3577 {
3085 ev_tstamp nat = at + w->interval; 3578 ev_tstamp nat = at + w->interval;
3086 3579
3087 /* when resolution fails us, we use ev_rt_now */ 3580 /* when resolution fails us, we use ev_rt_now */
3088 if (expect_false (nat == at)) 3581 if (ecb_expect_false (nat == at))
3089 { 3582 {
3090 at = ev_rt_now; 3583 at = ev_rt_now;
3091 break; 3584 break;
3092 } 3585 }
3093 3586
… …
3139 } 3632 }
3140} 3633}
3141 3634
3142/* simply recalculate all periodics */ 3635/* simply recalculate all periodics */
3143/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3636/* TODO: maybe ensure that at least one event happens when jumping forward? */
3144static void noinline ecb_cold 3637ecb_noinline ecb_cold
3638static void
3145periodics_reschedule (EV_P) 3639periodics_reschedule (EV_P)
3146{ 3640{
3147 int i; 3641 int i;
3148 3642
3149 /* adjust periodics after time jump */ 3643 /* adjust periodics after time jump */
… …
3162 reheap (periodics, periodiccnt); 3656 reheap (periodics, periodiccnt);
3163} 3657}
3164#endif 3658#endif
3165 3659
3166/* adjust all timers by a given offset */ 3660/* adjust all timers by a given offset */
3167static void noinline ecb_cold 3661ecb_noinline ecb_cold
3662static void
3168timers_reschedule (EV_P_ ev_tstamp adjust) 3663timers_reschedule (EV_P_ ev_tstamp adjust)
3169{ 3664{
3170 int i; 3665 int i;
3171 3666
3172 for (i = 0; i < timercnt; ++i) 3667 for (i = 0; i < timercnt; ++i)
… …
3181/* also detect if there was a timejump, and act accordingly */ 3676/* also detect if there was a timejump, and act accordingly */
3182inline_speed void 3677inline_speed void
3183time_update (EV_P_ ev_tstamp max_block) 3678time_update (EV_P_ ev_tstamp max_block)
3184{ 3679{
3185#if EV_USE_MONOTONIC 3680#if EV_USE_MONOTONIC
3186 if (expect_true (have_monotonic)) 3681 if (ecb_expect_true (have_monotonic))
3187 { 3682 {
3188 int i; 3683 int i;
3189 ev_tstamp odiff = rtmn_diff; 3684 ev_tstamp odiff = rtmn_diff;
3190 3685
3191 mn_now = get_clock (); 3686 mn_now = get_clock ();
3192 3687
3193 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3688 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3194 /* interpolate in the meantime */ 3689 /* interpolate in the meantime */
3195 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3690 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3196 { 3691 {
3197 ev_rt_now = rtmn_diff + mn_now; 3692 ev_rt_now = rtmn_diff + mn_now;
3198 return; 3693 return;
3199 } 3694 }
3200 3695
… …
3214 ev_tstamp diff; 3709 ev_tstamp diff;
3215 rtmn_diff = ev_rt_now - mn_now; 3710 rtmn_diff = ev_rt_now - mn_now;
3216 3711
3217 diff = odiff - rtmn_diff; 3712 diff = odiff - rtmn_diff;
3218 3713
3219 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3714 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3220 return; /* all is well */ 3715 return; /* all is well */
3221 3716
3222 ev_rt_now = ev_time (); 3717 ev_rt_now = ev_time ();
3223 mn_now = get_clock (); 3718 mn_now = get_clock ();
3224 now_floor = mn_now; 3719 now_floor = mn_now;
… …
3233 else 3728 else
3234#endif 3729#endif
3235 { 3730 {
3236 ev_rt_now = ev_time (); 3731 ev_rt_now = ev_time ();
3237 3732
3238 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3733 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3239 { 3734 {
3240 /* adjust timers. this is easy, as the offset is the same for all of them */ 3735 /* 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); 3736 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3242#if EV_PERIODIC_ENABLE 3737#if EV_PERIODIC_ENABLE
3243 periodics_reschedule (EV_A); 3738 periodics_reschedule (EV_A);
… …
3266#if EV_VERIFY >= 2 3761#if EV_VERIFY >= 2
3267 ev_verify (EV_A); 3762 ev_verify (EV_A);
3268#endif 3763#endif
3269 3764
3270#ifndef _WIN32 3765#ifndef _WIN32
3271 if (expect_false (curpid)) /* penalise the forking check even more */ 3766 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3272 if (expect_false (getpid () != curpid)) 3767 if (ecb_expect_false (getpid () != curpid))
3273 { 3768 {
3274 curpid = getpid (); 3769 curpid = getpid ();
3275 postfork = 1; 3770 postfork = 1;
3276 } 3771 }
3277#endif 3772#endif
3278 3773
3279#if EV_FORK_ENABLE 3774#if EV_FORK_ENABLE
3280 /* we might have forked, so queue fork handlers */ 3775 /* we might have forked, so queue fork handlers */
3281 if (expect_false (postfork)) 3776 if (ecb_expect_false (postfork))
3282 if (forkcnt) 3777 if (forkcnt)
3283 { 3778 {
3284 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3779 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3285 EV_INVOKE_PENDING; 3780 EV_INVOKE_PENDING;
3286 } 3781 }
3287#endif 3782#endif
3288 3783
3289#if EV_PREPARE_ENABLE 3784#if EV_PREPARE_ENABLE
3290 /* queue prepare watchers (and execute them) */ 3785 /* queue prepare watchers (and execute them) */
3291 if (expect_false (preparecnt)) 3786 if (ecb_expect_false (preparecnt))
3292 { 3787 {
3293 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3788 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3294 EV_INVOKE_PENDING; 3789 EV_INVOKE_PENDING;
3295 } 3790 }
3296#endif 3791#endif
3297 3792
3298 if (expect_false (loop_done)) 3793 if (ecb_expect_false (loop_done))
3299 break; 3794 break;
3300 3795
3301 /* we might have forked, so reify kernel state if necessary */ 3796 /* we might have forked, so reify kernel state if necessary */
3302 if (expect_false (postfork)) 3797 if (ecb_expect_false (postfork))
3303 loop_fork (EV_A); 3798 loop_fork (EV_A);
3304 3799
3305 /* update fd-related kernel structures */ 3800 /* update fd-related kernel structures */
3306 fd_reify (EV_A); 3801 fd_reify (EV_A);
3307 3802
… …
3319 /* from now on, we want a pipe-wake-up */ 3814 /* from now on, we want a pipe-wake-up */
3320 pipe_write_wanted = 1; 3815 pipe_write_wanted = 1;
3321 3816
3322 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3817 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3323 3818
3324 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3819 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3325 { 3820 {
3326 waittime = MAX_BLOCKTIME; 3821 waittime = MAX_BLOCKTIME;
3327 3822
3328 if (timercnt) 3823 if (timercnt)
3329 { 3824 {
… …
3338 if (waittime > to) waittime = to; 3833 if (waittime > to) waittime = to;
3339 } 3834 }
3340#endif 3835#endif
3341 3836
3342 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3837 /* don't let timeouts decrease the waittime below timeout_blocktime */
3343 if (expect_false (waittime < timeout_blocktime)) 3838 if (ecb_expect_false (waittime < timeout_blocktime))
3344 waittime = timeout_blocktime; 3839 waittime = timeout_blocktime;
3345 3840
3346 /* at this point, we NEED to wait, so we have to ensure */ 3841 /* at this point, we NEED to wait, so we have to ensure */
3347 /* to pass a minimum nonzero value to the backend */ 3842 /* to pass a minimum nonzero value to the backend */
3348 if (expect_false (waittime < backend_mintime)) 3843 if (ecb_expect_false (waittime < backend_mintime))
3349 waittime = backend_mintime; 3844 waittime = backend_mintime;
3350 3845
3351 /* extra check because io_blocktime is commonly 0 */ 3846 /* extra check because io_blocktime is commonly 0 */
3352 if (expect_false (io_blocktime)) 3847 if (ecb_expect_false (io_blocktime))
3353 { 3848 {
3354 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3849 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3355 3850
3356 if (sleeptime > waittime - backend_mintime) 3851 if (sleeptime > waittime - backend_mintime)
3357 sleeptime = waittime - backend_mintime; 3852 sleeptime = waittime - backend_mintime;
3358 3853
3359 if (expect_true (sleeptime > 0.)) 3854 if (ecb_expect_true (sleeptime > 0.))
3360 { 3855 {
3361 ev_sleep (sleeptime); 3856 ev_sleep (sleeptime);
3362 waittime -= sleeptime; 3857 waittime -= sleeptime;
3363 } 3858 }
3364 } 3859 }
… …
3378 { 3873 {
3379 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3874 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); 3875 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3381 } 3876 }
3382 3877
3383
3384 /* update ev_rt_now, do magic */ 3878 /* update ev_rt_now, do magic */
3385 time_update (EV_A_ waittime + sleeptime); 3879 time_update (EV_A_ waittime + sleeptime);
3386 } 3880 }
3387 3881
3388 /* queue pending timers and reschedule them */ 3882 /* queue pending timers and reschedule them */
… …
3396 idle_reify (EV_A); 3890 idle_reify (EV_A);
3397#endif 3891#endif
3398 3892
3399#if EV_CHECK_ENABLE 3893#if EV_CHECK_ENABLE
3400 /* queue check watchers, to be executed first */ 3894 /* queue check watchers, to be executed first */
3401 if (expect_false (checkcnt)) 3895 if (ecb_expect_false (checkcnt))
3402 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3896 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3403#endif 3897#endif
3404 3898
3405 EV_INVOKE_PENDING; 3899 EV_INVOKE_PENDING;
3406 } 3900 }
3407 while (expect_true ( 3901 while (ecb_expect_true (
3408 activecnt 3902 activecnt
3409 && !loop_done 3903 && !loop_done
3410 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3904 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3411 )); 3905 ));
3412 3906
… …
3419 3913
3420 return activecnt; 3914 return activecnt;
3421} 3915}
3422 3916
3423void 3917void
3424ev_break (EV_P_ int how) EV_THROW 3918ev_break (EV_P_ int how) EV_NOEXCEPT
3425{ 3919{
3426 loop_done = how; 3920 loop_done = how;
3427} 3921}
3428 3922
3429void 3923void
3430ev_ref (EV_P) EV_THROW 3924ev_ref (EV_P) EV_NOEXCEPT
3431{ 3925{
3432 ++activecnt; 3926 ++activecnt;
3433} 3927}
3434 3928
3435void 3929void
3436ev_unref (EV_P) EV_THROW 3930ev_unref (EV_P) EV_NOEXCEPT
3437{ 3931{
3438 --activecnt; 3932 --activecnt;
3439} 3933}
3440 3934
3441void 3935void
3442ev_now_update (EV_P) EV_THROW 3936ev_now_update (EV_P) EV_NOEXCEPT
3443{ 3937{
3444 time_update (EV_A_ 1e100); 3938 time_update (EV_A_ 1e100);
3445} 3939}
3446 3940
3447void 3941void
3448ev_suspend (EV_P) EV_THROW 3942ev_suspend (EV_P) EV_NOEXCEPT
3449{ 3943{
3450 ev_now_update (EV_A); 3944 ev_now_update (EV_A);
3451} 3945}
3452 3946
3453void 3947void
3454ev_resume (EV_P) EV_THROW 3948ev_resume (EV_P) EV_NOEXCEPT
3455{ 3949{
3456 ev_tstamp mn_prev = mn_now; 3950 ev_tstamp mn_prev = mn_now;
3457 3951
3458 ev_now_update (EV_A); 3952 ev_now_update (EV_A);
3459 timers_reschedule (EV_A_ mn_now - mn_prev); 3953 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3476inline_size void 3970inline_size void
3477wlist_del (WL *head, WL elem) 3971wlist_del (WL *head, WL elem)
3478{ 3972{
3479 while (*head) 3973 while (*head)
3480 { 3974 {
3481 if (expect_true (*head == elem)) 3975 if (ecb_expect_true (*head == elem))
3482 { 3976 {
3483 *head = elem->next; 3977 *head = elem->next;
3484 break; 3978 break;
3485 } 3979 }
3486 3980
… …
3498 w->pending = 0; 3992 w->pending = 0;
3499 } 3993 }
3500} 3994}
3501 3995
3502int 3996int
3503ev_clear_pending (EV_P_ void *w) EV_THROW 3997ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3504{ 3998{
3505 W w_ = (W)w; 3999 W w_ = (W)w;
3506 int pending = w_->pending; 4000 int pending = w_->pending;
3507 4001
3508 if (expect_true (pending)) 4002 if (ecb_expect_true (pending))
3509 { 4003 {
3510 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4004 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3511 p->w = (W)&pending_w; 4005 p->w = (W)&pending_w;
3512 w_->pending = 0; 4006 w_->pending = 0;
3513 return p->events; 4007 return p->events;
… …
3540 w->active = 0; 4034 w->active = 0;
3541} 4035}
3542 4036
3543/*****************************************************************************/ 4037/*****************************************************************************/
3544 4038
3545void noinline 4039ecb_noinline
4040void
3546ev_io_start (EV_P_ ev_io *w) EV_THROW 4041ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3547{ 4042{
3548 int fd = w->fd; 4043 int fd = w->fd;
3549 4044
3550 if (expect_false (ev_is_active (w))) 4045 if (ecb_expect_false (ev_is_active (w)))
3551 return; 4046 return;
3552 4047
3553 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4048 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)))); 4049 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3555 4050
4051#if EV_VERIFY >= 2
4052 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4053#endif
3556 EV_FREQUENT_CHECK; 4054 EV_FREQUENT_CHECK;
3557 4055
3558 ev_start (EV_A_ (W)w, 1); 4056 ev_start (EV_A_ (W)w, 1);
3559 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4057 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3560 wlist_add (&anfds[fd].head, (WL)w); 4058 wlist_add (&anfds[fd].head, (WL)w);
3561 4059
3562 /* common bug, apparently */ 4060 /* common bug, apparently */
3563 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4061 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3564 4062
… …
3566 w->events &= ~EV__IOFDSET; 4064 w->events &= ~EV__IOFDSET;
3567 4065
3568 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
3569} 4067}
3570 4068
3571void noinline 4069ecb_noinline
4070void
3572ev_io_stop (EV_P_ ev_io *w) EV_THROW 4071ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3573{ 4072{
3574 clear_pending (EV_A_ (W)w); 4073 clear_pending (EV_A_ (W)w);
3575 if (expect_false (!ev_is_active (w))) 4074 if (ecb_expect_false (!ev_is_active (w)))
3576 return; 4075 return;
3577 4076
3578 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4077 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3579 4078
4079#if EV_VERIFY >= 2
4080 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4081#endif
3580 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3581 4083
3582 wlist_del (&anfds[w->fd].head, (WL)w); 4084 wlist_del (&anfds[w->fd].head, (WL)w);
3583 ev_stop (EV_A_ (W)w); 4085 ev_stop (EV_A_ (W)w);
3584 4086
3585 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4087 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3586 4088
3587 EV_FREQUENT_CHECK; 4089 EV_FREQUENT_CHECK;
3588} 4090}
3589 4091
3590void noinline 4092ecb_noinline
4093void
3591ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4094ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3592{ 4095{
3593 if (expect_false (ev_is_active (w))) 4096 if (ecb_expect_false (ev_is_active (w)))
3594 return; 4097 return;
3595 4098
3596 ev_at (w) += mn_now; 4099 ev_at (w) += mn_now;
3597 4100
3598 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4101 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3599 4102
3600 EV_FREQUENT_CHECK; 4103 EV_FREQUENT_CHECK;
3601 4104
3602 ++timercnt; 4105 ++timercnt;
3603 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4106 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3604 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4107 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3605 ANHE_w (timers [ev_active (w)]) = (WT)w; 4108 ANHE_w (timers [ev_active (w)]) = (WT)w;
3606 ANHE_at_cache (timers [ev_active (w)]); 4109 ANHE_at_cache (timers [ev_active (w)]);
3607 upheap (timers, ev_active (w)); 4110 upheap (timers, ev_active (w));
3608 4111
3609 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3610 4113
3611 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4114 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3612} 4115}
3613 4116
3614void noinline 4117ecb_noinline
4118void
3615ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4119ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3616{ 4120{
3617 clear_pending (EV_A_ (W)w); 4121 clear_pending (EV_A_ (W)w);
3618 if (expect_false (!ev_is_active (w))) 4122 if (ecb_expect_false (!ev_is_active (w)))
3619 return; 4123 return;
3620 4124
3621 EV_FREQUENT_CHECK; 4125 EV_FREQUENT_CHECK;
3622 4126
3623 { 4127 {
… …
3625 4129
3626 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4130 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3627 4131
3628 --timercnt; 4132 --timercnt;
3629 4133
3630 if (expect_true (active < timercnt + HEAP0)) 4134 if (ecb_expect_true (active < timercnt + HEAP0))
3631 { 4135 {
3632 timers [active] = timers [timercnt + HEAP0]; 4136 timers [active] = timers [timercnt + HEAP0];
3633 adjustheap (timers, timercnt, active); 4137 adjustheap (timers, timercnt, active);
3634 } 4138 }
3635 } 4139 }
… …
3639 ev_stop (EV_A_ (W)w); 4143 ev_stop (EV_A_ (W)w);
3640 4144
3641 EV_FREQUENT_CHECK; 4145 EV_FREQUENT_CHECK;
3642} 4146}
3643 4147
3644void noinline 4148ecb_noinline
4149void
3645ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4150ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3646{ 4151{
3647 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
3648 4153
3649 clear_pending (EV_A_ (W)w); 4154 clear_pending (EV_A_ (W)w);
3650 4155
… …
3667 4172
3668 EV_FREQUENT_CHECK; 4173 EV_FREQUENT_CHECK;
3669} 4174}
3670 4175
3671ev_tstamp 4176ev_tstamp
3672ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4177ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3673{ 4178{
3674 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4179 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3675} 4180}
3676 4181
3677#if EV_PERIODIC_ENABLE 4182#if EV_PERIODIC_ENABLE
3678void noinline 4183ecb_noinline
4184void
3679ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4185ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3680{ 4186{
3681 if (expect_false (ev_is_active (w))) 4187 if (ecb_expect_false (ev_is_active (w)))
3682 return; 4188 return;
3683 4189
3684 if (w->reschedule_cb) 4190 if (w->reschedule_cb)
3685 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4191 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3686 else if (w->interval) 4192 else if (w->interval)
… …
3693 4199
3694 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3695 4201
3696 ++periodiccnt; 4202 ++periodiccnt;
3697 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4203 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3698 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4204 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3699 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4205 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3700 ANHE_at_cache (periodics [ev_active (w)]); 4206 ANHE_at_cache (periodics [ev_active (w)]);
3701 upheap (periodics, ev_active (w)); 4207 upheap (periodics, ev_active (w));
3702 4208
3703 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
3704 4210
3705 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4211 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3706} 4212}
3707 4213
3708void noinline 4214ecb_noinline
4215void
3709ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4216ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3710{ 4217{
3711 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3712 if (expect_false (!ev_is_active (w))) 4219 if (ecb_expect_false (!ev_is_active (w)))
3713 return; 4220 return;
3714 4221
3715 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3716 4223
3717 { 4224 {
… …
3719 4226
3720 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4227 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3721 4228
3722 --periodiccnt; 4229 --periodiccnt;
3723 4230
3724 if (expect_true (active < periodiccnt + HEAP0)) 4231 if (ecb_expect_true (active < periodiccnt + HEAP0))
3725 { 4232 {
3726 periodics [active] = periodics [periodiccnt + HEAP0]; 4233 periodics [active] = periodics [periodiccnt + HEAP0];
3727 adjustheap (periodics, periodiccnt, active); 4234 adjustheap (periodics, periodiccnt, active);
3728 } 4235 }
3729 } 4236 }
… …
3731 ev_stop (EV_A_ (W)w); 4238 ev_stop (EV_A_ (W)w);
3732 4239
3733 EV_FREQUENT_CHECK; 4240 EV_FREQUENT_CHECK;
3734} 4241}
3735 4242
3736void noinline 4243ecb_noinline
4244void
3737ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4245ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3738{ 4246{
3739 /* TODO: use adjustheap and recalculation */ 4247 /* TODO: use adjustheap and recalculation */
3740 ev_periodic_stop (EV_A_ w); 4248 ev_periodic_stop (EV_A_ w);
3741 ev_periodic_start (EV_A_ w); 4249 ev_periodic_start (EV_A_ w);
3742} 4250}
… …
3746# define SA_RESTART 0 4254# define SA_RESTART 0
3747#endif 4255#endif
3748 4256
3749#if EV_SIGNAL_ENABLE 4257#if EV_SIGNAL_ENABLE
3750 4258
3751void noinline 4259ecb_noinline
4260void
3752ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4261ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3753{ 4262{
3754 if (expect_false (ev_is_active (w))) 4263 if (ecb_expect_false (ev_is_active (w)))
3755 return; 4264 return;
3756 4265
3757 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4266 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3758 4267
3759#if EV_MULTIPLICITY 4268#if EV_MULTIPLICITY
… …
3828 } 4337 }
3829 4338
3830 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
3831} 4340}
3832 4341
3833void noinline 4342ecb_noinline
4343void
3834ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4344ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3835{ 4345{
3836 clear_pending (EV_A_ (W)w); 4346 clear_pending (EV_A_ (W)w);
3837 if (expect_false (!ev_is_active (w))) 4347 if (ecb_expect_false (!ev_is_active (w)))
3838 return; 4348 return;
3839 4349
3840 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
3841 4351
3842 wlist_del (&signals [w->signum - 1].head, (WL)w); 4352 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3870#endif 4380#endif
3871 4381
3872#if EV_CHILD_ENABLE 4382#if EV_CHILD_ENABLE
3873 4383
3874void 4384void
3875ev_child_start (EV_P_ ev_child *w) EV_THROW 4385ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3876{ 4386{
3877#if EV_MULTIPLICITY 4387#if EV_MULTIPLICITY
3878 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4388 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3879#endif 4389#endif
3880 if (expect_false (ev_is_active (w))) 4390 if (ecb_expect_false (ev_is_active (w)))
3881 return; 4391 return;
3882 4392
3883 EV_FREQUENT_CHECK; 4393 EV_FREQUENT_CHECK;
3884 4394
3885 ev_start (EV_A_ (W)w, 1); 4395 ev_start (EV_A_ (W)w, 1);
… …
3887 4397
3888 EV_FREQUENT_CHECK; 4398 EV_FREQUENT_CHECK;
3889} 4399}
3890 4400
3891void 4401void
3892ev_child_stop (EV_P_ ev_child *w) EV_THROW 4402ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3893{ 4403{
3894 clear_pending (EV_A_ (W)w); 4404 clear_pending (EV_A_ (W)w);
3895 if (expect_false (!ev_is_active (w))) 4405 if (ecb_expect_false (!ev_is_active (w)))
3896 return; 4406 return;
3897 4407
3898 EV_FREQUENT_CHECK; 4408 EV_FREQUENT_CHECK;
3899 4409
3900 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4410 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3914 4424
3915#define DEF_STAT_INTERVAL 5.0074891 4425#define DEF_STAT_INTERVAL 5.0074891
3916#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4426#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3917#define MIN_STAT_INTERVAL 0.1074891 4427#define MIN_STAT_INTERVAL 0.1074891
3918 4428
3919static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4429ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3920 4430
3921#if EV_USE_INOTIFY 4431#if EV_USE_INOTIFY
3922 4432
3923/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4433/* 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) 4434# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3925 4435
3926static void noinline 4436ecb_noinline
4437static void
3927infy_add (EV_P_ ev_stat *w) 4438infy_add (EV_P_ ev_stat *w)
3928{ 4439{
3929 w->wd = inotify_add_watch (fs_fd, w->path, 4440 w->wd = inotify_add_watch (fs_fd, w->path,
3930 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4441 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3931 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4442 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3995 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4506 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3996 ev_timer_again (EV_A_ &w->timer); 4507 ev_timer_again (EV_A_ &w->timer);
3997 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4508 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3998} 4509}
3999 4510
4000static void noinline 4511ecb_noinline
4512static void
4001infy_del (EV_P_ ev_stat *w) 4513infy_del (EV_P_ ev_stat *w)
4002{ 4514{
4003 int slot; 4515 int slot;
4004 int wd = w->wd; 4516 int wd = w->wd;
4005 4517
… …
4012 4524
4013 /* remove this watcher, if others are watching it, they will rearm */ 4525 /* remove this watcher, if others are watching it, they will rearm */
4014 inotify_rm_watch (fs_fd, wd); 4526 inotify_rm_watch (fs_fd, wd);
4015} 4527}
4016 4528
4017static void noinline 4529ecb_noinline
4530static void
4018infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4531infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4019{ 4532{
4020 if (slot < 0) 4533 if (slot < 0)
4021 /* overflow, need to check for all hash slots */ 4534 /* overflow, need to check for all hash slots */
4022 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4535 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4058 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4571 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4059 ofs += sizeof (struct inotify_event) + ev->len; 4572 ofs += sizeof (struct inotify_event) + ev->len;
4060 } 4573 }
4061} 4574}
4062 4575
4063inline_size void ecb_cold 4576inline_size ecb_cold
4577void
4064ev_check_2625 (EV_P) 4578ev_check_2625 (EV_P)
4065{ 4579{
4066 /* kernels < 2.6.25 are borked 4580 /* kernels < 2.6.25 are borked
4067 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4581 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4068 */ 4582 */
… …
4158#else 4672#else
4159# define EV_LSTAT(p,b) lstat (p, b) 4673# define EV_LSTAT(p,b) lstat (p, b)
4160#endif 4674#endif
4161 4675
4162void 4676void
4163ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4677ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4164{ 4678{
4165 if (lstat (w->path, &w->attr) < 0) 4679 if (lstat (w->path, &w->attr) < 0)
4166 w->attr.st_nlink = 0; 4680 w->attr.st_nlink = 0;
4167 else if (!w->attr.st_nlink) 4681 else if (!w->attr.st_nlink)
4168 w->attr.st_nlink = 1; 4682 w->attr.st_nlink = 1;
4169} 4683}
4170 4684
4171static void noinline 4685ecb_noinline
4686static void
4172stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4687stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4173{ 4688{
4174 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4689 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4175 4690
4176 ev_statdata prev = w->attr; 4691 ev_statdata prev = w->attr;
… …
4207 ev_feed_event (EV_A_ w, EV_STAT); 4722 ev_feed_event (EV_A_ w, EV_STAT);
4208 } 4723 }
4209} 4724}
4210 4725
4211void 4726void
4212ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4727ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4213{ 4728{
4214 if (expect_false (ev_is_active (w))) 4729 if (ecb_expect_false (ev_is_active (w)))
4215 return; 4730 return;
4216 4731
4217 ev_stat_stat (EV_A_ w); 4732 ev_stat_stat (EV_A_ w);
4218 4733
4219 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4734 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4238 4753
4239 EV_FREQUENT_CHECK; 4754 EV_FREQUENT_CHECK;
4240} 4755}
4241 4756
4242void 4757void
4243ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4758ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4244{ 4759{
4245 clear_pending (EV_A_ (W)w); 4760 clear_pending (EV_A_ (W)w);
4246 if (expect_false (!ev_is_active (w))) 4761 if (ecb_expect_false (!ev_is_active (w)))
4247 return; 4762 return;
4248 4763
4249 EV_FREQUENT_CHECK; 4764 EV_FREQUENT_CHECK;
4250 4765
4251#if EV_USE_INOTIFY 4766#if EV_USE_INOTIFY
… …
4264} 4779}
4265#endif 4780#endif
4266 4781
4267#if EV_IDLE_ENABLE 4782#if EV_IDLE_ENABLE
4268void 4783void
4269ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4784ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4270{ 4785{
4271 if (expect_false (ev_is_active (w))) 4786 if (ecb_expect_false (ev_is_active (w)))
4272 return; 4787 return;
4273 4788
4274 pri_adjust (EV_A_ (W)w); 4789 pri_adjust (EV_A_ (W)w);
4275 4790
4276 EV_FREQUENT_CHECK; 4791 EV_FREQUENT_CHECK;
… …
4279 int active = ++idlecnt [ABSPRI (w)]; 4794 int active = ++idlecnt [ABSPRI (w)];
4280 4795
4281 ++idleall; 4796 ++idleall;
4282 ev_start (EV_A_ (W)w, active); 4797 ev_start (EV_A_ (W)w, active);
4283 4798
4284 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4799 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4285 idles [ABSPRI (w)][active - 1] = w; 4800 idles [ABSPRI (w)][active - 1] = w;
4286 } 4801 }
4287 4802
4288 EV_FREQUENT_CHECK; 4803 EV_FREQUENT_CHECK;
4289} 4804}
4290 4805
4291void 4806void
4292ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4807ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4293{ 4808{
4294 clear_pending (EV_A_ (W)w); 4809 clear_pending (EV_A_ (W)w);
4295 if (expect_false (!ev_is_active (w))) 4810 if (ecb_expect_false (!ev_is_active (w)))
4296 return; 4811 return;
4297 4812
4298 EV_FREQUENT_CHECK; 4813 EV_FREQUENT_CHECK;
4299 4814
4300 { 4815 {
… …
4311} 4826}
4312#endif 4827#endif
4313 4828
4314#if EV_PREPARE_ENABLE 4829#if EV_PREPARE_ENABLE
4315void 4830void
4316ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4831ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4317{ 4832{
4318 if (expect_false (ev_is_active (w))) 4833 if (ecb_expect_false (ev_is_active (w)))
4319 return; 4834 return;
4320 4835
4321 EV_FREQUENT_CHECK; 4836 EV_FREQUENT_CHECK;
4322 4837
4323 ev_start (EV_A_ (W)w, ++preparecnt); 4838 ev_start (EV_A_ (W)w, ++preparecnt);
4324 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4839 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4325 prepares [preparecnt - 1] = w; 4840 prepares [preparecnt - 1] = w;
4326 4841
4327 EV_FREQUENT_CHECK; 4842 EV_FREQUENT_CHECK;
4328} 4843}
4329 4844
4330void 4845void
4331ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4846ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4332{ 4847{
4333 clear_pending (EV_A_ (W)w); 4848 clear_pending (EV_A_ (W)w);
4334 if (expect_false (!ev_is_active (w))) 4849 if (ecb_expect_false (!ev_is_active (w)))
4335 return; 4850 return;
4336 4851
4337 EV_FREQUENT_CHECK; 4852 EV_FREQUENT_CHECK;
4338 4853
4339 { 4854 {
… …
4349} 4864}
4350#endif 4865#endif
4351 4866
4352#if EV_CHECK_ENABLE 4867#if EV_CHECK_ENABLE
4353void 4868void
4354ev_check_start (EV_P_ ev_check *w) EV_THROW 4869ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4355{ 4870{
4356 if (expect_false (ev_is_active (w))) 4871 if (ecb_expect_false (ev_is_active (w)))
4357 return; 4872 return;
4358 4873
4359 EV_FREQUENT_CHECK; 4874 EV_FREQUENT_CHECK;
4360 4875
4361 ev_start (EV_A_ (W)w, ++checkcnt); 4876 ev_start (EV_A_ (W)w, ++checkcnt);
4362 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4877 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4363 checks [checkcnt - 1] = w; 4878 checks [checkcnt - 1] = w;
4364 4879
4365 EV_FREQUENT_CHECK; 4880 EV_FREQUENT_CHECK;
4366} 4881}
4367 4882
4368void 4883void
4369ev_check_stop (EV_P_ ev_check *w) EV_THROW 4884ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4370{ 4885{
4371 clear_pending (EV_A_ (W)w); 4886 clear_pending (EV_A_ (W)w);
4372 if (expect_false (!ev_is_active (w))) 4887 if (ecb_expect_false (!ev_is_active (w)))
4373 return; 4888 return;
4374 4889
4375 EV_FREQUENT_CHECK; 4890 EV_FREQUENT_CHECK;
4376 4891
4377 { 4892 {
… …
4386 EV_FREQUENT_CHECK; 4901 EV_FREQUENT_CHECK;
4387} 4902}
4388#endif 4903#endif
4389 4904
4390#if EV_EMBED_ENABLE 4905#if EV_EMBED_ENABLE
4391void noinline 4906ecb_noinline
4907void
4392ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4908ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4393{ 4909{
4394 ev_run (w->other, EVRUN_NOWAIT); 4910 ev_run (w->other, EVRUN_NOWAIT);
4395} 4911}
4396 4912
4397static void 4913static void
… …
4445 ev_idle_stop (EV_A_ idle); 4961 ev_idle_stop (EV_A_ idle);
4446} 4962}
4447#endif 4963#endif
4448 4964
4449void 4965void
4450ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4966ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4451{ 4967{
4452 if (expect_false (ev_is_active (w))) 4968 if (ecb_expect_false (ev_is_active (w)))
4453 return; 4969 return;
4454 4970
4455 { 4971 {
4456 EV_P = w->other; 4972 EV_P = w->other;
4457 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4973 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4476 4992
4477 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4478} 4994}
4479 4995
4480void 4996void
4481ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4997ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4482{ 4998{
4483 clear_pending (EV_A_ (W)w); 4999 clear_pending (EV_A_ (W)w);
4484 if (expect_false (!ev_is_active (w))) 5000 if (ecb_expect_false (!ev_is_active (w)))
4485 return; 5001 return;
4486 5002
4487 EV_FREQUENT_CHECK; 5003 EV_FREQUENT_CHECK;
4488 5004
4489 ev_io_stop (EV_A_ &w->io); 5005 ev_io_stop (EV_A_ &w->io);
… …
4496} 5012}
4497#endif 5013#endif
4498 5014
4499#if EV_FORK_ENABLE 5015#if EV_FORK_ENABLE
4500void 5016void
4501ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5017ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4502{ 5018{
4503 if (expect_false (ev_is_active (w))) 5019 if (ecb_expect_false (ev_is_active (w)))
4504 return; 5020 return;
4505 5021
4506 EV_FREQUENT_CHECK; 5022 EV_FREQUENT_CHECK;
4507 5023
4508 ev_start (EV_A_ (W)w, ++forkcnt); 5024 ev_start (EV_A_ (W)w, ++forkcnt);
4509 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5025 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4510 forks [forkcnt - 1] = w; 5026 forks [forkcnt - 1] = w;
4511 5027
4512 EV_FREQUENT_CHECK; 5028 EV_FREQUENT_CHECK;
4513} 5029}
4514 5030
4515void 5031void
4516ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5032ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4517{ 5033{
4518 clear_pending (EV_A_ (W)w); 5034 clear_pending (EV_A_ (W)w);
4519 if (expect_false (!ev_is_active (w))) 5035 if (ecb_expect_false (!ev_is_active (w)))
4520 return; 5036 return;
4521 5037
4522 EV_FREQUENT_CHECK; 5038 EV_FREQUENT_CHECK;
4523 5039
4524 { 5040 {
… …
4534} 5050}
4535#endif 5051#endif
4536 5052
4537#if EV_CLEANUP_ENABLE 5053#if EV_CLEANUP_ENABLE
4538void 5054void
4539ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5055ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4540{ 5056{
4541 if (expect_false (ev_is_active (w))) 5057 if (ecb_expect_false (ev_is_active (w)))
4542 return; 5058 return;
4543 5059
4544 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4545 5061
4546 ev_start (EV_A_ (W)w, ++cleanupcnt); 5062 ev_start (EV_A_ (W)w, ++cleanupcnt);
4547 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5063 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4548 cleanups [cleanupcnt - 1] = w; 5064 cleanups [cleanupcnt - 1] = w;
4549 5065
4550 /* cleanup watchers should never keep a refcount on the loop */ 5066 /* cleanup watchers should never keep a refcount on the loop */
4551 ev_unref (EV_A); 5067 ev_unref (EV_A);
4552 EV_FREQUENT_CHECK; 5068 EV_FREQUENT_CHECK;
4553} 5069}
4554 5070
4555void 5071void
4556ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5072ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4557{ 5073{
4558 clear_pending (EV_A_ (W)w); 5074 clear_pending (EV_A_ (W)w);
4559 if (expect_false (!ev_is_active (w))) 5075 if (ecb_expect_false (!ev_is_active (w)))
4560 return; 5076 return;
4561 5077
4562 EV_FREQUENT_CHECK; 5078 EV_FREQUENT_CHECK;
4563 ev_ref (EV_A); 5079 ev_ref (EV_A);
4564 5080
… …
4575} 5091}
4576#endif 5092#endif
4577 5093
4578#if EV_ASYNC_ENABLE 5094#if EV_ASYNC_ENABLE
4579void 5095void
4580ev_async_start (EV_P_ ev_async *w) EV_THROW 5096ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4581{ 5097{
4582 if (expect_false (ev_is_active (w))) 5098 if (ecb_expect_false (ev_is_active (w)))
4583 return; 5099 return;
4584 5100
4585 w->sent = 0; 5101 w->sent = 0;
4586 5102
4587 evpipe_init (EV_A); 5103 evpipe_init (EV_A);
4588 5104
4589 EV_FREQUENT_CHECK; 5105 EV_FREQUENT_CHECK;
4590 5106
4591 ev_start (EV_A_ (W)w, ++asynccnt); 5107 ev_start (EV_A_ (W)w, ++asynccnt);
4592 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5108 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4593 asyncs [asynccnt - 1] = w; 5109 asyncs [asynccnt - 1] = w;
4594 5110
4595 EV_FREQUENT_CHECK; 5111 EV_FREQUENT_CHECK;
4596} 5112}
4597 5113
4598void 5114void
4599ev_async_stop (EV_P_ ev_async *w) EV_THROW 5115ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4600{ 5116{
4601 clear_pending (EV_A_ (W)w); 5117 clear_pending (EV_A_ (W)w);
4602 if (expect_false (!ev_is_active (w))) 5118 if (ecb_expect_false (!ev_is_active (w)))
4603 return; 5119 return;
4604 5120
4605 EV_FREQUENT_CHECK; 5121 EV_FREQUENT_CHECK;
4606 5122
4607 { 5123 {
… …
4615 5131
4616 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4617} 5133}
4618 5134
4619void 5135void
4620ev_async_send (EV_P_ ev_async *w) EV_THROW 5136ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4621{ 5137{
4622 w->sent = 1; 5138 w->sent = 1;
4623 evpipe_write (EV_A_ &async_pending); 5139 evpipe_write (EV_A_ &async_pending);
4624} 5140}
4625#endif 5141#endif
… …
4662 5178
4663 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5179 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4664} 5180}
4665 5181
4666void 5182void
4667ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5183ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4668{ 5184{
4669 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5185 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 5186
4677 once->cb = cb; 5187 once->cb = cb;
4678 once->arg = arg; 5188 once->arg = arg;
4679 5189
4680 ev_init (&once->io, once_cb_io); 5190 ev_init (&once->io, once_cb_io);
… …
4693} 5203}
4694 5204
4695/*****************************************************************************/ 5205/*****************************************************************************/
4696 5206
4697#if EV_WALK_ENABLE 5207#if EV_WALK_ENABLE
4698void ecb_cold 5208ecb_cold
5209void
4699ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5210ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4700{ 5211{
4701 int i, j; 5212 int i, j;
4702 ev_watcher_list *wl, *wn; 5213 ev_watcher_list *wl, *wn;
4703 5214
4704 if (types & (EV_IO | EV_EMBED)) 5215 if (types & (EV_IO | EV_EMBED))

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines