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Comparing libev/ev.c (file contents):
Revision 1.456 by root, Thu Jul 4 22:32:23 2013 UTC vs.
Revision 1.508 by root, Thu Jul 11 08:29:08 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_MSEC(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__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 766 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
639 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 767 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
640 #elif defined __ia64__ 768 #elif defined __ia64__
641 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 769 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
770 #elif defined __m68k__
771 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
772 #elif defined __m88k__
773 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
774 #elif defined __sh__
775 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
642 #endif 776 #endif
643 #endif 777 #endif
644#endif 778#endif
645 779
646#ifndef ECB_MEMORY_FENCE 780#ifndef ECB_MEMORY_FENCE
647 #if ECB_GCC_VERSION(4,7) 781 #if ECB_GCC_VERSION(4,7)
648 /* see comment below (stdatomic.h) about the C11 memory model. */ 782 /* see comment below (stdatomic.h) about the C11 memory model. */
649 #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)
650 787
651 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 788 #elif ECB_CLANG_EXTENSION(c_atomic)
652 * without risking compile time errors with other compilers. We *could*
653 * define our own ecb_clang_has_feature, but I just can't be bothered to work
654 * around this shit time and again.
655 * #elif defined __clang && __has_feature (cxx_atomic)
656 * // see comment below (stdatomic.h) about the C11 memory model. 789 /* see comment below (stdatomic.h) about the C11 memory model. */
657 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 790 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
658 */ 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)
659 794
660 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 795 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
661 #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()
662 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 803 #elif _MSC_VER >= 1400 /* VC++ 2005 */
663 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 804 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
664 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 805 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
665 #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 */
666 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 807 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
667 #elif defined _WIN32 808 #elif defined _WIN32
668 #include <WinNT.h> 809 #include <WinNT.h>
669 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 810 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
670 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 811 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
671 #include <mbarrier.h> 812 #include <mbarrier.h>
672 #define ECB_MEMORY_FENCE __machine_rw_barrier () 813 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
673 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 814 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
674 #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 ()
675 #elif __xlC__ 817 #elif __xlC__
676 #define ECB_MEMORY_FENCE __sync () 818 #define ECB_MEMORY_FENCE __sync ()
677 #endif 819 #endif
678#endif 820#endif
679 821
680#ifndef ECB_MEMORY_FENCE 822#ifndef ECB_MEMORY_FENCE
681 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 823 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
682 /* 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, */
683 /* not just C11 atomics and atomic accesses */ 825 /* not just C11 atomics and atomic accesses */
684 #include <stdatomic.h> 826 #include <stdatomic.h>
685 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
686 /* any fence other than seq_cst, which isn't very efficient for us. */
687 /* Why that is, we don't know - either the C11 memory model is quite useless */
688 /* for most usages, or gcc and clang have a bug */
689 /* I *currently* lean towards the latter, and inefficiently implement */
690 /* all three of ecb's fences as a seq_cst fence */
691 #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)
692 #endif 830 #endif
693#endif 831#endif
694 832
695#ifndef ECB_MEMORY_FENCE 833#ifndef ECB_MEMORY_FENCE
696 #if !ECB_AVOID_PTHREADS 834 #if !ECB_AVOID_PTHREADS
… …
716 854
717#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 855#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
718 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 856 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
719#endif 857#endif
720 858
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
721/*****************************************************************************/ 863/*****************************************************************************/
722 864
723#if __cplusplus 865#if ECB_CPP
724 #define ecb_inline static inline 866 #define ecb_inline static inline
725#elif ECB_GCC_VERSION(2,5) 867#elif ECB_GCC_VERSION(2,5)
726 #define ecb_inline static __inline__ 868 #define ecb_inline static __inline__
727#elif ECB_C99 869#elif ECB_C99
728 #define ecb_inline static inline 870 #define ecb_inline static inline
… …
742 884
743#define ECB_CONCAT_(a, b) a ## b 885#define ECB_CONCAT_(a, b) a ## b
744#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 886#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
745#define ECB_STRINGIFY_(a) # a 887#define ECB_STRINGIFY_(a) # a
746#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))
747 890
748#define ecb_function_ ecb_inline 891#define ecb_function_ ecb_inline
749 892
750#if ECB_GCC_VERSION(3,1) 893#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
751 #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)
752 #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)
753 #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)
754 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 916 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
755#else 917#else
756 #define ecb_attribute(attrlist)
757 #define ecb_is_constant(expr) 0
758 #define ecb_expect(expr,value) (expr)
759 #define ecb_prefetch(addr,rw,locality) 918 #define ecb_prefetch(addr,rw,locality)
760#endif 919#endif
761 920
762/* no emulation for ecb_decltype */ 921/* no emulation for ecb_decltype */
763#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; };
764 #define ecb_decltype(x) __decltype(x) 925 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
765#elif ECB_GCC_VERSION(3,0) 926#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
766 #define ecb_decltype(x) __typeof(x) 927 #define ecb_decltype(x) __typeof__ (x)
767#endif 928#endif
768 929
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
769#define ecb_noinline ecb_attribute ((__noinline__)) 947 #define ecb_noinline ecb_attribute ((__noinline__))
948#endif
949
770#define ecb_unused ecb_attribute ((__unused__)) 950#define ecb_unused ecb_attribute ((__unused__))
771#define ecb_const ecb_attribute ((__const__)) 951#define ecb_const ecb_attribute ((__const__))
772#define ecb_pure ecb_attribute ((__pure__)) 952#define ecb_pure ecb_attribute ((__pure__))
773 953
774#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 */
775 #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)
776#else 962#else
777 #define ecb_noreturn ecb_attribute ((__noreturn__)) 963 #define ecb_noreturn ecb_attribute ((__noreturn__))
778#endif 964#endif
779 965
780#if ECB_GCC_VERSION(4,3) 966#if ECB_GCC_VERSION(4,3)
… …
795/* for compatibility to the rest of the world */ 981/* for compatibility to the rest of the world */
796#define ecb_likely(expr) ecb_expect_true (expr) 982#define ecb_likely(expr) ecb_expect_true (expr)
797#define ecb_unlikely(expr) ecb_expect_false (expr) 983#define ecb_unlikely(expr) ecb_expect_false (expr)
798 984
799/* count trailing zero bits and count # of one bits */ 985/* count trailing zero bits and count # of one bits */
800#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))
801 /* 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 */
802 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 991 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
803 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 992 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
804 #define ecb_ctz32(x) __builtin_ctz (x) 993 #define ecb_ctz32(x) __builtin_ctz (x)
805 #define ecb_ctz64(x) __builtin_ctzll (x) 994 #define ecb_ctz64(x) __builtin_ctzll (x)
806 #define ecb_popcount32(x) __builtin_popcount (x) 995 #define ecb_popcount32(x) __builtin_popcount (x)
807 /* no popcountll */ 996 /* no popcountll */
808#else 997#else
809 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 998 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
810 ecb_function_ int 999 ecb_function_ ecb_const int
811 ecb_ctz32 (uint32_t x) 1000 ecb_ctz32 (uint32_t x)
812 { 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
813 int r = 0; 1007 int r = 0;
814 1008
815 x &= ~x + 1; /* this isolates the lowest bit */ 1009 x &= ~x + 1; /* this isolates the lowest bit */
816 1010
817#if ECB_branchless_on_i386 1011#if ECB_branchless_on_i386
… …
827 if (x & 0xff00ff00) r += 8; 1021 if (x & 0xff00ff00) r += 8;
828 if (x & 0xffff0000) r += 16; 1022 if (x & 0xffff0000) r += 16;
829#endif 1023#endif
830 1024
831 return r; 1025 return r;
1026#endif
832 } 1027 }
833 1028
834 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1029 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
835 ecb_function_ int 1030 ecb_function_ ecb_const int
836 ecb_ctz64 (uint64_t x) 1031 ecb_ctz64 (uint64_t x)
837 { 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
838 int shift = x & 0xffffffffU ? 0 : 32; 1038 int shift = x & 0xffffffff ? 0 : 32;
839 return ecb_ctz32 (x >> shift) + shift; 1039 return ecb_ctz32 (x >> shift) + shift;
1040#endif
840 } 1041 }
841 1042
842 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1043 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
843 ecb_function_ int 1044 ecb_function_ ecb_const int
844 ecb_popcount32 (uint32_t x) 1045 ecb_popcount32 (uint32_t x)
845 { 1046 {
846 x -= (x >> 1) & 0x55555555; 1047 x -= (x >> 1) & 0x55555555;
847 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1048 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
848 x = ((x >> 4) + x) & 0x0f0f0f0f; 1049 x = ((x >> 4) + x) & 0x0f0f0f0f;
849 x *= 0x01010101; 1050 x *= 0x01010101;
850 1051
851 return x >> 24; 1052 return x >> 24;
852 } 1053 }
853 1054
854 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1055 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
855 ecb_function_ int ecb_ld32 (uint32_t x) 1056 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
856 { 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
857 int r = 0; 1063 int r = 0;
858 1064
859 if (x >> 16) { x >>= 16; r += 16; } 1065 if (x >> 16) { x >>= 16; r += 16; }
860 if (x >> 8) { x >>= 8; r += 8; } 1066 if (x >> 8) { x >>= 8; r += 8; }
861 if (x >> 4) { x >>= 4; r += 4; } 1067 if (x >> 4) { x >>= 4; r += 4; }
862 if (x >> 2) { x >>= 2; r += 2; } 1068 if (x >> 2) { x >>= 2; r += 2; }
863 if (x >> 1) { r += 1; } 1069 if (x >> 1) { r += 1; }
864 1070
865 return r; 1071 return r;
1072#endif
866 } 1073 }
867 1074
868 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1075 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
869 ecb_function_ int ecb_ld64 (uint64_t x) 1076 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
870 { 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
871 int r = 0; 1083 int r = 0;
872 1084
873 if (x >> 32) { x >>= 32; r += 32; } 1085 if (x >> 32) { x >>= 32; r += 32; }
874 1086
875 return r + ecb_ld32 (x); 1087 return r + ecb_ld32 (x);
1088#endif
876 } 1089 }
877#endif 1090#endif
878 1091
879ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1092ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
880ecb_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)); }
881ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1094ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
882ecb_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)); }
883 1096
884ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1097ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
885ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1098ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
886{ 1099{
887 return ( (x * 0x0802U & 0x22110U) 1100 return ( (x * 0x0802U & 0x22110U)
888 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1101 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
889} 1102}
890 1103
891ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1104ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
892ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1105ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
893{ 1106{
894 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1107 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
895 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1108 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
896 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1109 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
897 x = ( x >> 8 ) | ( x << 8); 1110 x = ( x >> 8 ) | ( x << 8);
898 1111
899 return x; 1112 return x;
900} 1113}
901 1114
902ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1115ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
903ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1116ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
904{ 1117{
905 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1118 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
906 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1119 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
907 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1120 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
908 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1121 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
911 return x; 1124 return x;
912} 1125}
913 1126
914/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1127/* popcount64 is only available on 64 bit cpus as gcc builtin */
915/* so for this version we are lazy */ 1128/* so for this version we are lazy */
916ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1129ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
917ecb_function_ int 1130ecb_function_ ecb_const int
918ecb_popcount64 (uint64_t x) 1131ecb_popcount64 (uint64_t x)
919{ 1132{
920 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1133 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
921} 1134}
922 1135
923ecb_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);
924ecb_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);
925ecb_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);
926ecb_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);
927ecb_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);
928ecb_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);
929ecb_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);
930ecb_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);
931 1144
932ecb_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); }
933ecb_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); }
934ecb_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); }
935ecb_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); }
936ecb_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); }
937ecb_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); }
938ecb_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); }
939ecb_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); }
940 1153
941#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
942 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1158 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1159 #endif
943 #define ecb_bswap32(x) __builtin_bswap32 (x) 1160 #define ecb_bswap32(x) __builtin_bswap32 (x)
944 #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)))
945#else 1167#else
946 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1168 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
947 ecb_function_ uint16_t 1169 ecb_function_ ecb_const uint16_t
948 ecb_bswap16 (uint16_t x) 1170 ecb_bswap16 (uint16_t x)
949 { 1171 {
950 return ecb_rotl16 (x, 8); 1172 return ecb_rotl16 (x, 8);
951 } 1173 }
952 1174
953 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1175 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
954 ecb_function_ uint32_t 1176 ecb_function_ ecb_const uint32_t
955 ecb_bswap32 (uint32_t x) 1177 ecb_bswap32 (uint32_t x)
956 { 1178 {
957 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1179 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
958 } 1180 }
959 1181
960 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1182 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
961 ecb_function_ uint64_t 1183 ecb_function_ ecb_const uint64_t
962 ecb_bswap64 (uint64_t x) 1184 ecb_bswap64 (uint64_t x)
963 { 1185 {
964 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1186 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
965 } 1187 }
966#endif 1188#endif
967 1189
968#if ECB_GCC_VERSION(4,5) 1190#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
969 #define ecb_unreachable() __builtin_unreachable () 1191 #define ecb_unreachable() __builtin_unreachable ()
970#else 1192#else
971 /* 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 :/ */
972 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1194 ecb_inline ecb_noreturn void ecb_unreachable (void);
973 ecb_inline void ecb_unreachable (void) { } 1195 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
974#endif 1196#endif
975 1197
976/* try to tell the compiler that some condition is definitely true */ 1198/* try to tell the compiler that some condition is definitely true */
977#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1199#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
978 1200
979ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1201ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
980ecb_inline unsigned char 1202ecb_inline ecb_const uint32_t
981ecb_byteorder_helper (void) 1203ecb_byteorder_helper (void)
982{ 1204{
983 /* the union code still generates code under pressure in gcc, */ 1205 /* the union code still generates code under pressure in gcc, */
984 /* but less than using pointers, and always seems to */ 1206 /* but less than using pointers, and always seems to */
985 /* successfully return a constant. */ 1207 /* successfully return a constant. */
986 /* the reason why we have this horrible preprocessor mess */ 1208 /* the reason why we have this horrible preprocessor mess */
987 /* 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 */
988 /* or when using a recent enough gcc version (>= 4.6) */ 1210 /* or when using a recent enough gcc version (>= 4.6) */
989#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
990 return 0x44;
991#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
992 return 0x44; 1214 return 0x44332211;
993#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
994 return 0x11; 1218 return 0x11223344;
995#else 1219#else
996 union 1220 union
997 { 1221 {
1222 uint8_t c[4];
998 uint32_t i; 1223 uint32_t u;
999 uint8_t c;
1000 } u = { 0x11223344 }; 1224 } u = { 0x11, 0x22, 0x33, 0x44 };
1001 return u.c; 1225 return u.u;
1002#endif 1226#endif
1003} 1227}
1004 1228
1005ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1229ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1006ecb_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; }
1007ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1231ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1008ecb_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; }
1009 1233
1010#if ECB_GCC_VERSION(3,0) || ECB_C99 1234#if ECB_GCC_VERSION(3,0) || ECB_C99
1011 #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))
1012#else 1236#else
1013 #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)))
1014#endif 1238#endif
1015 1239
1016#if __cplusplus 1240#if ECB_CPP
1017 template<typename T> 1241 template<typename T>
1018 static inline T ecb_div_rd (T val, T div) 1242 static inline T ecb_div_rd (T val, T div)
1019 { 1243 {
1020 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1244 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1021 } 1245 }
… …
1038 } 1262 }
1039#else 1263#else
1040 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1264 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1041#endif 1265#endif
1042 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
1043/*******************************************************************************/ 1363/*******************************************************************************/
1044/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1364/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1045 1365
1046/* basically, everything uses "ieee pure-endian" floating point numbers */ 1366/* basically, everything uses "ieee pure-endian" floating point numbers */
1047/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1367/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1048#if 0 \ 1368#if 0 \
1049 || __i386 || __i386__ \ 1369 || __i386 || __i386__ \
1050 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1370 || ECB_GCC_AMD64 \
1051 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1371 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1052 || defined __arm__ && defined __ARM_EABI__ \
1053 || defined __s390__ || defined __s390x__ \ 1372 || defined __s390__ || defined __s390x__ \
1054 || defined __mips__ \ 1373 || defined __mips__ \
1055 || defined __alpha__ \ 1374 || defined __alpha__ \
1056 || defined __hppa__ \ 1375 || defined __hppa__ \
1057 || defined __ia64__ \ 1376 || defined __ia64__ \
1377 || defined __m68k__ \
1378 || defined __m88k__ \
1379 || defined __sh__ \
1058 || 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__
1059 #define ECB_STDFP 1 1383 #define ECB_STDFP 1
1060 #include <string.h> /* for memcpy */ 1384 #include <string.h> /* for memcpy */
1061#else 1385#else
1062 #define ECB_STDFP 0 1386 #define ECB_STDFP 0
1063 #include <math.h> /* for frexp*, ldexp* */
1064#endif 1387#endif
1065 1388
1066#ifndef ECB_NO_LIBM 1389#ifndef ECB_NO_LIBM
1067 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
1068 /* convert a float to ieee single/binary32 */ 1414 /* convert a float to ieee single/binary32 */
1069 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);
1070 ecb_function_ uint32_t 1416 ecb_function_ ecb_const uint32_t
1071 ecb_float_to_binary32 (float x) 1417 ecb_float_to_binary32 (float x)
1072 { 1418 {
1073 uint32_t r; 1419 uint32_t r;
1074 1420
1075 #if ECB_STDFP 1421 #if ECB_STDFP
… …
1082 if (x == 0e0f ) return 0x00000000U; 1428 if (x == 0e0f ) return 0x00000000U;
1083 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1429 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1084 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1430 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1085 if (x != x ) return 0x7fbfffffU; 1431 if (x != x ) return 0x7fbfffffU;
1086 1432
1087 m = frexpf (x, &e) * 0x1000000U; 1433 m = ecb_frexpf (x, &e) * 0x1000000U;
1088 1434
1089 r = m & 0x80000000U; 1435 r = m & 0x80000000U;
1090 1436
1091 if (r) 1437 if (r)
1092 m = -m; 1438 m = -m;
… …
1104 1450
1105 return r; 1451 return r;
1106 } 1452 }
1107 1453
1108 /* converts an ieee single/binary32 to a float */ 1454 /* converts an ieee single/binary32 to a float */
1109 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);
1110 ecb_function_ float 1456 ecb_function_ ecb_const float
1111 ecb_binary32_to_float (uint32_t x) 1457 ecb_binary32_to_float (uint32_t x)
1112 { 1458 {
1113 float r; 1459 float r;
1114 1460
1115 #if ECB_STDFP 1461 #if ECB_STDFP
… …
1125 x |= 0x800000U; 1471 x |= 0x800000U;
1126 else 1472 else
1127 e = 1; 1473 e = 1;
1128 1474
1129 /* 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 */
1130 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1476 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1131 1477
1132 r = neg ? -r : r; 1478 r = neg ? -r : r;
1133 #endif 1479 #endif
1134 1480
1135 return r; 1481 return r;
1136 } 1482 }
1137 1483
1138 /* convert a double to ieee double/binary64 */ 1484 /* convert a double to ieee double/binary64 */
1139 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);
1140 ecb_function_ uint64_t 1486 ecb_function_ ecb_const uint64_t
1141 ecb_double_to_binary64 (double x) 1487 ecb_double_to_binary64 (double x)
1142 { 1488 {
1143 uint64_t r; 1489 uint64_t r;
1144 1490
1145 #if ECB_STDFP 1491 #if ECB_STDFP
… …
1174 1520
1175 return r; 1521 return r;
1176 } 1522 }
1177 1523
1178 /* converts an ieee double/binary64 to a double */ 1524 /* converts an ieee double/binary64 to a double */
1179 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);
1180 ecb_function_ double 1526 ecb_function_ ecb_const double
1181 ecb_binary64_to_double (uint64_t x) 1527 ecb_binary64_to_double (uint64_t x)
1182 { 1528 {
1183 double r; 1529 double r;
1184 1530
1185 #if ECB_STDFP 1531 #if ECB_STDFP
… …
1203 #endif 1549 #endif
1204 1550
1205 return r; 1551 return r;
1206 } 1552 }
1207 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
1208#endif 1570#endif
1209 1571
1210#endif 1572#endif
1211 1573
1212/* ECB.H END */ 1574/* ECB.H END */
1213 1575
1214#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1576#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1215/* 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
1216 * 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
1217 * 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
1218 * libev, in which cases the memory fences become nops. 1580 * libev, in which cases the memory fences become nops.
1219 * alternatively, you can remove this #error and link against libpthread, 1581 * alternatively, you can remove this #error and link against libpthread,
1220 * which will then provide the memory fences. 1582 * which will then provide the memory fences.
1221 */ 1583 */
1222# error "memory fences not defined for your architecture, please report" 1584# error "memory fences not defined for your architecture, please report"
… …
1226# define ECB_MEMORY_FENCE do { } while (0) 1588# define ECB_MEMORY_FENCE do { } while (0)
1227# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1589# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1228# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1590# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1229#endif 1591#endif
1230 1592
1231#define expect_false(cond) ecb_expect_false (cond)
1232#define expect_true(cond) ecb_expect_true (cond)
1233#define noinline ecb_noinline
1234
1235#define inline_size ecb_inline 1593#define inline_size ecb_inline
1236 1594
1237#if EV_FEATURE_CODE 1595#if EV_FEATURE_CODE
1238# define inline_speed ecb_inline 1596# define inline_speed ecb_inline
1239#else 1597#else
1240# define inline_speed static noinline 1598# define inline_speed ecb_noinline static
1241#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/*****************************************************************************/
1242 1666
1243#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1667#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1244 1668
1245#if EV_MINPRI == EV_MAXPRI 1669#if EV_MINPRI == EV_MAXPRI
1246# define ABSPRI(w) (((W)w), 0) 1670# define ABSPRI(w) (((W)w), 0)
1247#else 1671#else
1248# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1672# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1249#endif 1673#endif
1250 1674
1251#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1675#define EMPTY /* required for microsofts broken pseudo-c compiler */
1252#define EMPTY2(a,b) /* used to suppress some warnings */
1253 1676
1254typedef ev_watcher *W; 1677typedef ev_watcher *W;
1255typedef ev_watcher_list *WL; 1678typedef ev_watcher_list *WL;
1256typedef ev_watcher_time *WT; 1679typedef ev_watcher_time *WT;
1257 1680
… …
1282# include "ev_win32.c" 1705# include "ev_win32.c"
1283#endif 1706#endif
1284 1707
1285/*****************************************************************************/ 1708/*****************************************************************************/
1286 1709
1710#if EV_USE_LINUXAIO
1711# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1712#endif
1713
1287/* define a suitable floor function (only used by periodics atm) */ 1714/* define a suitable floor function (only used by periodics atm) */
1288 1715
1289#if EV_USE_FLOOR 1716#if EV_USE_FLOOR
1290# include <math.h> 1717# include <math.h>
1291# define ev_floor(v) floor (v) 1718# define ev_floor(v) floor (v)
1292#else 1719#else
1293 1720
1294#include <float.h> 1721#include <float.h>
1295 1722
1296/* 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
1297static ev_tstamp noinline 1725static ev_tstamp
1298ev_floor (ev_tstamp v) 1726ev_floor (ev_tstamp v)
1299{ 1727{
1300 /* the choice of shift factor is not terribly important */ 1728 /* the choice of shift factor is not terribly important */
1301#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1729#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1302 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1730 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1303#else 1731#else
1304 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1732 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1305#endif 1733#endif
1306 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
1307 /* argument too large for an unsigned long? */ 1743 /* argument too large for an unsigned long? then reduce it */
1308 if (expect_false (v >= shift)) 1744 if (ecb_expect_false (v >= shift))
1309 { 1745 {
1310 ev_tstamp f; 1746 ev_tstamp f;
1311 1747
1312 if (v == v - 1.) 1748 if (v == v - 1.)
1313 return v; /* very large number */ 1749 return v; /* very large numbers are assumed to be integer */
1314 1750
1315 f = shift * ev_floor (v * (1. / shift)); 1751 f = shift * ev_floor (v * (1. / shift));
1316 return f + ev_floor (v - f); 1752 return f + ev_floor (v - f);
1317 } 1753 }
1318 1754
1319 /* special treatment for negative args? */
1320 if (expect_false (v < 0.))
1321 {
1322 ev_tstamp f = -ev_floor (-v);
1323
1324 return f - (f == v ? 0 : 1);
1325 }
1326
1327 /* fits into an unsigned long */ 1755 /* fits into an unsigned long */
1328 return (unsigned long)v; 1756 return (unsigned long)v;
1329} 1757}
1330 1758
1331#endif 1759#endif
… …
1334 1762
1335#ifdef __linux 1763#ifdef __linux
1336# include <sys/utsname.h> 1764# include <sys/utsname.h>
1337#endif 1765#endif
1338 1766
1339static unsigned int noinline ecb_cold 1767ecb_noinline ecb_cold
1768static unsigned int
1340ev_linux_version (void) 1769ev_linux_version (void)
1341{ 1770{
1342#ifdef __linux 1771#ifdef __linux
1343 unsigned int v = 0; 1772 unsigned int v = 0;
1344 struct utsname buf; 1773 struct utsname buf;
… …
1373} 1802}
1374 1803
1375/*****************************************************************************/ 1804/*****************************************************************************/
1376 1805
1377#if EV_AVOID_STDIO 1806#if EV_AVOID_STDIO
1378static void noinline ecb_cold 1807ecb_noinline ecb_cold
1808static void
1379ev_printerr (const char *msg) 1809ev_printerr (const char *msg)
1380{ 1810{
1381 write (STDERR_FILENO, msg, strlen (msg)); 1811 write (STDERR_FILENO, msg, strlen (msg));
1382} 1812}
1383#endif 1813#endif
1384 1814
1385static void (*syserr_cb)(const char *msg) EV_THROW; 1815static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1386 1816
1387void ecb_cold 1817ecb_cold
1818void
1388ev_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
1389{ 1820{
1390 syserr_cb = cb; 1821 syserr_cb = cb;
1391} 1822}
1392 1823
1393static void noinline ecb_cold 1824ecb_noinline ecb_cold
1825static void
1394ev_syserr (const char *msg) 1826ev_syserr (const char *msg)
1395{ 1827{
1396 if (!msg) 1828 if (!msg)
1397 msg = "(libev) system error"; 1829 msg = "(libev) system error";
1398 1830
… …
1411 abort (); 1843 abort ();
1412 } 1844 }
1413} 1845}
1414 1846
1415static void * 1847static void *
1416ev_realloc_emul (void *ptr, long size) EV_THROW 1848ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1417{ 1849{
1418 /* some systems, notably openbsd and darwin, fail to properly 1850 /* some systems, notably openbsd and darwin, fail to properly
1419 * 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
1420 * the single unix specification, so work around them here. 1852 * the single unix specification, so work around them here.
1421 * recently, also (at least) fedora and debian started breaking it, 1853 * recently, also (at least) fedora and debian started breaking it,
… …
1427 1859
1428 free (ptr); 1860 free (ptr);
1429 return 0; 1861 return 0;
1430} 1862}
1431 1863
1432static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1864static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1433 1865
1434void ecb_cold 1866ecb_cold
1867void
1435ev_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
1436{ 1869{
1437 alloc = cb; 1870 alloc = cb;
1438} 1871}
1439 1872
1440inline_speed void * 1873inline_speed void *
… …
1467typedef struct 1900typedef struct
1468{ 1901{
1469 WL head; 1902 WL head;
1470 unsigned char events; /* the events watched for */ 1903 unsigned char events; /* the events watched for */
1471 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) */
1472 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 */
1473 unsigned char unused; 1906 unsigned char eflags; /* flags field for use by backends */
1474#if EV_USE_EPOLL 1907#if EV_USE_EPOLL
1475 unsigned int egen; /* generation counter to counter epoll bugs */ 1908 unsigned int egen; /* generation counter to counter epoll bugs */
1476#endif 1909#endif
1477#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1910#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1478 SOCKET handle; 1911 SOCKET handle;
… …
1542 static int ev_default_loop_ptr; 1975 static int ev_default_loop_ptr;
1543 1976
1544#endif 1977#endif
1545 1978
1546#if EV_FEATURE_API 1979#if EV_FEATURE_API
1547# 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)
1548# 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)
1549# define EV_INVOKE_PENDING invoke_cb (EV_A) 1982# define EV_INVOKE_PENDING invoke_cb (EV_A)
1550#else 1983#else
1551# define EV_RELEASE_CB (void)0 1984# define EV_RELEASE_CB (void)0
1552# define EV_ACQUIRE_CB (void)0 1985# define EV_ACQUIRE_CB (void)0
1553# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1986# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1557 1990
1558/*****************************************************************************/ 1991/*****************************************************************************/
1559 1992
1560#ifndef EV_HAVE_EV_TIME 1993#ifndef EV_HAVE_EV_TIME
1561ev_tstamp 1994ev_tstamp
1562ev_time (void) EV_THROW 1995ev_time (void) EV_NOEXCEPT
1563{ 1996{
1564#if EV_USE_REALTIME 1997#if EV_USE_REALTIME
1565 if (expect_true (have_realtime)) 1998 if (ecb_expect_true (have_realtime))
1566 { 1999 {
1567 struct timespec ts; 2000 struct timespec ts;
1568 clock_gettime (CLOCK_REALTIME, &ts); 2001 clock_gettime (CLOCK_REALTIME, &ts);
1569 return ts.tv_sec + ts.tv_nsec * 1e-9; 2002 return EV_TS_GET (ts);
1570 } 2003 }
1571#endif 2004#endif
1572 2005
1573 struct timeval tv; 2006 struct timeval tv;
1574 gettimeofday (&tv, 0); 2007 gettimeofday (&tv, 0);
1575 return tv.tv_sec + tv.tv_usec * 1e-6; 2008 return EV_TV_GET (tv);
1576} 2009}
1577#endif 2010#endif
1578 2011
1579inline_size ev_tstamp 2012inline_size ev_tstamp
1580get_clock (void) 2013get_clock (void)
1581{ 2014{
1582#if EV_USE_MONOTONIC 2015#if EV_USE_MONOTONIC
1583 if (expect_true (have_monotonic)) 2016 if (ecb_expect_true (have_monotonic))
1584 { 2017 {
1585 struct timespec ts; 2018 struct timespec ts;
1586 clock_gettime (CLOCK_MONOTONIC, &ts); 2019 clock_gettime (CLOCK_MONOTONIC, &ts);
1587 return ts.tv_sec + ts.tv_nsec * 1e-9; 2020 return EV_TS_GET (ts);
1588 } 2021 }
1589#endif 2022#endif
1590 2023
1591 return ev_time (); 2024 return ev_time ();
1592} 2025}
1593 2026
1594#if EV_MULTIPLICITY 2027#if EV_MULTIPLICITY
1595ev_tstamp 2028ev_tstamp
1596ev_now (EV_P) EV_THROW 2029ev_now (EV_P) EV_NOEXCEPT
1597{ 2030{
1598 return ev_rt_now; 2031 return ev_rt_now;
1599} 2032}
1600#endif 2033#endif
1601 2034
1602void 2035void
1603ev_sleep (ev_tstamp delay) EV_THROW 2036ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1604{ 2037{
1605 if (delay > 0.) 2038 if (delay > 0.)
1606 { 2039 {
1607#if EV_USE_NANOSLEEP 2040#if EV_USE_NANOSLEEP
1608 struct timespec ts; 2041 struct timespec ts;
1609 2042
1610 EV_TS_SET (ts, delay); 2043 EV_TS_SET (ts, delay);
1611 nanosleep (&ts, 0); 2044 nanosleep (&ts, 0);
1612#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) */
1613 Sleep ((unsigned long)(delay * 1e3)); 2048 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1614#else 2049#else
1615 struct timeval tv; 2050 struct timeval tv;
1616 2051
1617 /* 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 */
1618 /* something not guaranteed by newer posix versions, but guaranteed */ 2053 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1648 } 2083 }
1649 2084
1650 return ncur; 2085 return ncur;
1651} 2086}
1652 2087
1653static void * noinline ecb_cold 2088ecb_noinline ecb_cold
2089static void *
1654array_realloc (int elem, void *base, int *cur, int cnt) 2090array_realloc (int elem, void *base, int *cur, int cnt)
1655{ 2091{
1656 *cur = array_nextsize (elem, *cur, cnt); 2092 *cur = array_nextsize (elem, *cur, cnt);
1657 return ev_realloc (base, elem * *cur); 2093 return ev_realloc (base, elem * *cur);
1658} 2094}
1659 2095
2096#define array_needsize_noinit(base,offset,count)
2097
1660#define array_init_zero(base,count) \ 2098#define array_needsize_zerofill(base,offset,count) \
1661 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2099 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1662 2100
1663#define array_needsize(type,base,cur,cnt,init) \ 2101#define array_needsize(type,base,cur,cnt,init) \
1664 if (expect_false ((cnt) > (cur))) \ 2102 if (ecb_expect_false ((cnt) > (cur))) \
1665 { \ 2103 { \
1666 int ecb_unused ocur_ = (cur); \ 2104 ecb_unused int ocur_ = (cur); \
1667 (base) = (type *)array_realloc \ 2105 (base) = (type *)array_realloc \
1668 (sizeof (type), (base), &(cur), (cnt)); \ 2106 (sizeof (type), (base), &(cur), (cnt)); \
1669 init ((base) + (ocur_), (cur) - ocur_); \ 2107 init ((base), ocur_, ((cur) - ocur_)); \
1670 } 2108 }
1671 2109
1672#if 0 2110#if 0
1673#define array_slim(type,stem) \ 2111#define array_slim(type,stem) \
1674 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2112 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1683 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
1684 2122
1685/*****************************************************************************/ 2123/*****************************************************************************/
1686 2124
1687/* dummy callback for pending events */ 2125/* dummy callback for pending events */
1688static void noinline 2126ecb_noinline
2127static void
1689pendingcb (EV_P_ ev_prepare *w, int revents) 2128pendingcb (EV_P_ ev_prepare *w, int revents)
1690{ 2129{
1691} 2130}
1692 2131
1693void noinline 2132ecb_noinline
2133void
1694ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2134ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1695{ 2135{
1696 W w_ = (W)w; 2136 W w_ = (W)w;
1697 int pri = ABSPRI (w_); 2137 int pri = ABSPRI (w_);
1698 2138
1699 if (expect_false (w_->pending)) 2139 if (ecb_expect_false (w_->pending))
1700 pendings [pri][w_->pending - 1].events |= revents; 2140 pendings [pri][w_->pending - 1].events |= revents;
1701 else 2141 else
1702 { 2142 {
1703 w_->pending = ++pendingcnt [pri]; 2143 w_->pending = ++pendingcnt [pri];
1704 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2144 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1705 pendings [pri][w_->pending - 1].w = w_; 2145 pendings [pri][w_->pending - 1].w = w_;
1706 pendings [pri][w_->pending - 1].events = revents; 2146 pendings [pri][w_->pending - 1].events = revents;
1707 } 2147 }
1708 2148
1709 pendingpri = NUMPRI - 1; 2149 pendingpri = NUMPRI - 1;
1710} 2150}
1711 2151
1712inline_speed void 2152inline_speed void
1713feed_reverse (EV_P_ W w) 2153feed_reverse (EV_P_ W w)
1714{ 2154{
1715 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2155 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1716 rfeeds [rfeedcnt++] = w; 2156 rfeeds [rfeedcnt++] = w;
1717} 2157}
1718 2158
1719inline_size void 2159inline_size void
1720feed_reverse_done (EV_P_ int revents) 2160feed_reverse_done (EV_P_ int revents)
… …
1755inline_speed void 2195inline_speed void
1756fd_event (EV_P_ int fd, int revents) 2196fd_event (EV_P_ int fd, int revents)
1757{ 2197{
1758 ANFD *anfd = anfds + fd; 2198 ANFD *anfd = anfds + fd;
1759 2199
1760 if (expect_true (!anfd->reify)) 2200 if (ecb_expect_true (!anfd->reify))
1761 fd_event_nocheck (EV_A_ fd, revents); 2201 fd_event_nocheck (EV_A_ fd, revents);
1762} 2202}
1763 2203
1764void 2204void
1765ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2205ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1766{ 2206{
1767 if (fd >= 0 && fd < anfdmax) 2207 if (fd >= 0 && fd < anfdmax)
1768 fd_event_nocheck (EV_A_ fd, revents); 2208 fd_event_nocheck (EV_A_ fd, revents);
1769} 2209}
1770 2210
… …
1807 ev_io *w; 2247 ev_io *w;
1808 2248
1809 unsigned char o_events = anfd->events; 2249 unsigned char o_events = anfd->events;
1810 unsigned char o_reify = anfd->reify; 2250 unsigned char o_reify = anfd->reify;
1811 2251
1812 anfd->reify = 0; 2252 anfd->reify = 0;
1813 2253
1814 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2254 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1815 { 2255 {
1816 anfd->events = 0; 2256 anfd->events = 0;
1817 2257
1818 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)
1819 anfd->events |= (unsigned char)w->events; 2259 anfd->events |= (unsigned char)w->events;
… …
1828 2268
1829 fdchangecnt = 0; 2269 fdchangecnt = 0;
1830} 2270}
1831 2271
1832/* something about the given fd changed */ 2272/* something about the given fd changed */
1833inline_size void 2273inline_size
2274void
1834fd_change (EV_P_ int fd, int flags) 2275fd_change (EV_P_ int fd, int flags)
1835{ 2276{
1836 unsigned char reify = anfds [fd].reify; 2277 unsigned char reify = anfds [fd].reify;
1837 anfds [fd].reify |= flags; 2278 anfds [fd].reify |= flags;
1838 2279
1839 if (expect_true (!reify)) 2280 if (ecb_expect_true (!reify))
1840 { 2281 {
1841 ++fdchangecnt; 2282 ++fdchangecnt;
1842 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2283 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1843 fdchanges [fdchangecnt - 1] = fd; 2284 fdchanges [fdchangecnt - 1] = fd;
1844 } 2285 }
1845} 2286}
1846 2287
1847/* 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 */
1848inline_speed void ecb_cold 2289inline_speed ecb_cold void
1849fd_kill (EV_P_ int fd) 2290fd_kill (EV_P_ int fd)
1850{ 2291{
1851 ev_io *w; 2292 ev_io *w;
1852 2293
1853 while ((w = (ev_io *)anfds [fd].head)) 2294 while ((w = (ev_io *)anfds [fd].head))
… …
1856 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);
1857 } 2298 }
1858} 2299}
1859 2300
1860/* check whether the given fd is actually valid, for error recovery */ 2301/* check whether the given fd is actually valid, for error recovery */
1861inline_size int ecb_cold 2302inline_size ecb_cold int
1862fd_valid (int fd) 2303fd_valid (int fd)
1863{ 2304{
1864#ifdef _WIN32 2305#ifdef _WIN32
1865 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2306 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1866#else 2307#else
1867 return fcntl (fd, F_GETFD) != -1; 2308 return fcntl (fd, F_GETFD) != -1;
1868#endif 2309#endif
1869} 2310}
1870 2311
1871/* called on EBADF to verify fds */ 2312/* called on EBADF to verify fds */
1872static void noinline ecb_cold 2313ecb_noinline ecb_cold
2314static void
1873fd_ebadf (EV_P) 2315fd_ebadf (EV_P)
1874{ 2316{
1875 int fd; 2317 int fd;
1876 2318
1877 for (fd = 0; fd < anfdmax; ++fd) 2319 for (fd = 0; fd < anfdmax; ++fd)
… …
1879 if (!fd_valid (fd) && errno == EBADF) 2321 if (!fd_valid (fd) && errno == EBADF)
1880 fd_kill (EV_A_ fd); 2322 fd_kill (EV_A_ fd);
1881} 2323}
1882 2324
1883/* 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 */
1884static void noinline ecb_cold 2326ecb_noinline ecb_cold
2327static void
1885fd_enomem (EV_P) 2328fd_enomem (EV_P)
1886{ 2329{
1887 int fd; 2330 int fd;
1888 2331
1889 for (fd = anfdmax; fd--; ) 2332 for (fd = anfdmax; fd--; )
… …
1893 break; 2336 break;
1894 } 2337 }
1895} 2338}
1896 2339
1897/* 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 */
1898static void noinline 2341ecb_noinline
2342static void
1899fd_rearm_all (EV_P) 2343fd_rearm_all (EV_P)
1900{ 2344{
1901 int fd; 2345 int fd;
1902 2346
1903 for (fd = 0; fd < anfdmax; ++fd) 2347 for (fd = 0; fd < anfdmax; ++fd)
… …
1956 ev_tstamp minat; 2400 ev_tstamp minat;
1957 ANHE *minpos; 2401 ANHE *minpos;
1958 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2402 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1959 2403
1960 /* find minimum child */ 2404 /* find minimum child */
1961 if (expect_true (pos + DHEAP - 1 < E)) 2405 if (ecb_expect_true (pos + DHEAP - 1 < E))
1962 { 2406 {
1963 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2407 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1964 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));
1965 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));
1966 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));
1967 } 2411 }
1968 else if (pos < E) 2412 else if (pos < E)
1969 { 2413 {
1970 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2414 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1971 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));
1972 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));
1973 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));
1974 } 2418 }
1975 else 2419 else
1976 break; 2420 break;
1977 2421
1978 if (ANHE_at (he) <= minat) 2422 if (ANHE_at (he) <= minat)
… …
1986 2430
1987 heap [k] = he; 2431 heap [k] = he;
1988 ev_active (ANHE_w (he)) = k; 2432 ev_active (ANHE_w (he)) = k;
1989} 2433}
1990 2434
1991#else /* 4HEAP */ 2435#else /* not 4HEAP */
1992 2436
1993#define HEAP0 1 2437#define HEAP0 1
1994#define HPARENT(k) ((k) >> 1) 2438#define HPARENT(k) ((k) >> 1)
1995#define UPHEAP_DONE(p,k) (!(p)) 2439#define UPHEAP_DONE(p,k) (!(p))
1996 2440
… …
2084 2528
2085/*****************************************************************************/ 2529/*****************************************************************************/
2086 2530
2087#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2531#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2088 2532
2089static void noinline ecb_cold 2533ecb_noinline ecb_cold
2534static void
2090evpipe_init (EV_P) 2535evpipe_init (EV_P)
2091{ 2536{
2092 if (!ev_is_active (&pipe_w)) 2537 if (!ev_is_active (&pipe_w))
2093 { 2538 {
2094 int fds [2]; 2539 int fds [2];
… …
2134inline_speed void 2579inline_speed void
2135evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2580evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2136{ 2581{
2137 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 */
2138 2583
2139 if (expect_true (*flag)) 2584 if (ecb_expect_true (*flag))
2140 return; 2585 return;
2141 2586
2142 *flag = 1; 2587 *flag = 1;
2143 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 */
2144 2589
… …
2165#endif 2610#endif
2166 { 2611 {
2167#ifdef _WIN32 2612#ifdef _WIN32
2168 WSABUF buf; 2613 WSABUF buf;
2169 DWORD sent; 2614 DWORD sent;
2170 buf.buf = &buf; 2615 buf.buf = (char *)&buf;
2171 buf.len = 1; 2616 buf.len = 1;
2172 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);
2173#else 2618#else
2174 write (evpipe [1], &(evpipe [1]), 1); 2619 write (evpipe [1], &(evpipe [1]), 1);
2175#endif 2620#endif
… …
2221 sig_pending = 0; 2666 sig_pending = 0;
2222 2667
2223 ECB_MEMORY_FENCE; 2668 ECB_MEMORY_FENCE;
2224 2669
2225 for (i = EV_NSIG - 1; i--; ) 2670 for (i = EV_NSIG - 1; i--; )
2226 if (expect_false (signals [i].pending)) 2671 if (ecb_expect_false (signals [i].pending))
2227 ev_feed_signal_event (EV_A_ i + 1); 2672 ev_feed_signal_event (EV_A_ i + 1);
2228 } 2673 }
2229#endif 2674#endif
2230 2675
2231#if EV_ASYNC_ENABLE 2676#if EV_ASYNC_ENABLE
… …
2247} 2692}
2248 2693
2249/*****************************************************************************/ 2694/*****************************************************************************/
2250 2695
2251void 2696void
2252ev_feed_signal (int signum) EV_THROW 2697ev_feed_signal (int signum) EV_NOEXCEPT
2253{ 2698{
2254#if EV_MULTIPLICITY 2699#if EV_MULTIPLICITY
2255 EV_P; 2700 EV_P;
2256 ECB_MEMORY_FENCE_ACQUIRE; 2701 ECB_MEMORY_FENCE_ACQUIRE;
2257 EV_A = signals [signum - 1].loop; 2702 EV_A = signals [signum - 1].loop;
… …
2272#endif 2717#endif
2273 2718
2274 ev_feed_signal (signum); 2719 ev_feed_signal (signum);
2275} 2720}
2276 2721
2277void noinline 2722ecb_noinline
2723void
2278ev_feed_signal_event (EV_P_ int signum) EV_THROW 2724ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2279{ 2725{
2280 WL w; 2726 WL w;
2281 2727
2282 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2728 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2283 return; 2729 return;
2284 2730
2285 --signum; 2731 --signum;
2286 2732
2287#if EV_MULTIPLICITY 2733#if EV_MULTIPLICITY
2288 /* 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 */
2289 /* or, likely more useful, feeding a signal nobody is waiting for */ 2735 /* or, likely more useful, feeding a signal nobody is waiting for */
2290 2736
2291 if (expect_false (signals [signum].loop != EV_A)) 2737 if (ecb_expect_false (signals [signum].loop != EV_A))
2292 return; 2738 return;
2293#endif 2739#endif
2294 2740
2295 signals [signum].pending = 0; 2741 signals [signum].pending = 0;
2296 ECB_MEMORY_FENCE_RELEASE; 2742 ECB_MEMORY_FENCE_RELEASE;
… …
2392# include "ev_kqueue.c" 2838# include "ev_kqueue.c"
2393#endif 2839#endif
2394#if EV_USE_EPOLL 2840#if EV_USE_EPOLL
2395# include "ev_epoll.c" 2841# include "ev_epoll.c"
2396#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
2397#if EV_USE_POLL 2849#if EV_USE_POLL
2398# include "ev_poll.c" 2850# include "ev_poll.c"
2399#endif 2851#endif
2400#if EV_USE_SELECT 2852#if EV_USE_SELECT
2401# include "ev_select.c" 2853# include "ev_select.c"
2402#endif 2854#endif
2403 2855
2404int ecb_cold 2856ecb_cold int
2405ev_version_major (void) EV_THROW 2857ev_version_major (void) EV_NOEXCEPT
2406{ 2858{
2407 return EV_VERSION_MAJOR; 2859 return EV_VERSION_MAJOR;
2408} 2860}
2409 2861
2410int ecb_cold 2862ecb_cold int
2411ev_version_minor (void) EV_THROW 2863ev_version_minor (void) EV_NOEXCEPT
2412{ 2864{
2413 return EV_VERSION_MINOR; 2865 return EV_VERSION_MINOR;
2414} 2866}
2415 2867
2416/* 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 */
2417int inline_size ecb_cold 2869inline_size ecb_cold int
2418enable_secure (void) 2870enable_secure (void)
2419{ 2871{
2420#ifdef _WIN32 2872#ifdef _WIN32
2421 return 0; 2873 return 0;
2422#else 2874#else
2423 return getuid () != geteuid () 2875 return getuid () != geteuid ()
2424 || getgid () != getegid (); 2876 || getgid () != getegid ();
2425#endif 2877#endif
2426} 2878}
2427 2879
2428unsigned int ecb_cold 2880ecb_cold
2881unsigned int
2429ev_supported_backends (void) EV_THROW 2882ev_supported_backends (void) EV_NOEXCEPT
2430{ 2883{
2431 unsigned int flags = 0; 2884 unsigned int flags = 0;
2432 2885
2433 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2886 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2434 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2887 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2435 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;
2436 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2891 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2437 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2892 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2438 2893
2439 return flags; 2894 return flags;
2440} 2895}
2441 2896
2442unsigned int ecb_cold 2897ecb_cold
2898unsigned int
2443ev_recommended_backends (void) EV_THROW 2899ev_recommended_backends (void) EV_NOEXCEPT
2444{ 2900{
2445 unsigned int flags = ev_supported_backends (); 2901 unsigned int flags = ev_supported_backends ();
2446 2902
2447#ifndef __NetBSD__ 2903#ifndef __NetBSD__
2448 /* kqueue is borked on everything but netbsd apparently */ 2904 /* kqueue is borked on everything but netbsd apparently */
… …
2456#endif 2912#endif
2457#ifdef __FreeBSD__ 2913#ifdef __FreeBSD__
2458 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) */
2459#endif 2915#endif
2460 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
2461 return flags; 2926 return flags;
2462} 2927}
2463 2928
2464unsigned int ecb_cold 2929ecb_cold
2930unsigned int
2465ev_embeddable_backends (void) EV_THROW 2931ev_embeddable_backends (void) EV_NOEXCEPT
2466{ 2932{
2467 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2933 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2468 2934
2469 /* 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 */
2470 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 */
2471 flags &= ~EVBACKEND_EPOLL; 2937 flags &= ~EVBACKEND_EPOLL;
2472 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
2473 return flags; 2946 return flags;
2474} 2947}
2475 2948
2476unsigned int 2949unsigned int
2477ev_backend (EV_P) EV_THROW 2950ev_backend (EV_P) EV_NOEXCEPT
2478{ 2951{
2479 return backend; 2952 return backend;
2480} 2953}
2481 2954
2482#if EV_FEATURE_API 2955#if EV_FEATURE_API
2483unsigned int 2956unsigned int
2484ev_iteration (EV_P) EV_THROW 2957ev_iteration (EV_P) EV_NOEXCEPT
2485{ 2958{
2486 return loop_count; 2959 return loop_count;
2487} 2960}
2488 2961
2489unsigned int 2962unsigned int
2490ev_depth (EV_P) EV_THROW 2963ev_depth (EV_P) EV_NOEXCEPT
2491{ 2964{
2492 return loop_depth; 2965 return loop_depth;
2493} 2966}
2494 2967
2495void 2968void
2496ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2969ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2497{ 2970{
2498 io_blocktime = interval; 2971 io_blocktime = interval;
2499} 2972}
2500 2973
2501void 2974void
2502ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2975ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2503{ 2976{
2504 timeout_blocktime = interval; 2977 timeout_blocktime = interval;
2505} 2978}
2506 2979
2507void 2980void
2508ev_set_userdata (EV_P_ void *data) EV_THROW 2981ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2509{ 2982{
2510 userdata = data; 2983 userdata = data;
2511} 2984}
2512 2985
2513void * 2986void *
2514ev_userdata (EV_P) EV_THROW 2987ev_userdata (EV_P) EV_NOEXCEPT
2515{ 2988{
2516 return userdata; 2989 return userdata;
2517} 2990}
2518 2991
2519void 2992void
2520ev_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
2521{ 2994{
2522 invoke_cb = invoke_pending_cb; 2995 invoke_cb = invoke_pending_cb;
2523} 2996}
2524 2997
2525void 2998void
2526ev_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
2527{ 3000{
2528 release_cb = release; 3001 release_cb = release;
2529 acquire_cb = acquire; 3002 acquire_cb = acquire;
2530} 3003}
2531#endif 3004#endif
2532 3005
2533/* initialise a loop structure, must be zero-initialised */ 3006/* initialise a loop structure, must be zero-initialised */
2534static void noinline ecb_cold 3007ecb_noinline ecb_cold
3008static void
2535loop_init (EV_P_ unsigned int flags) EV_THROW 3009loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2536{ 3010{
2537 if (!backend) 3011 if (!backend)
2538 { 3012 {
2539 origflags = flags; 3013 origflags = flags;
2540 3014
… …
2598 3072
2599 if (!(flags & EVBACKEND_MASK)) 3073 if (!(flags & EVBACKEND_MASK))
2600 flags |= ev_recommended_backends (); 3074 flags |= ev_recommended_backends ();
2601 3075
2602#if EV_USE_IOCP 3076#if EV_USE_IOCP
2603 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3077 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2604#endif 3078#endif
2605#if EV_USE_PORT 3079#if EV_USE_PORT
2606 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3080 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2607#endif 3081#endif
2608#if EV_USE_KQUEUE 3082#if EV_USE_KQUEUE
2609 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);
2610#endif 3090#endif
2611#if EV_USE_EPOLL 3091#if EV_USE_EPOLL
2612 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3092 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2613#endif 3093#endif
2614#if EV_USE_POLL 3094#if EV_USE_POLL
2615 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3095 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2616#endif 3096#endif
2617#if EV_USE_SELECT 3097#if EV_USE_SELECT
2618 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3098 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2619#endif 3099#endif
2620 3100
2621 ev_prepare_init (&pending_w, pendingcb); 3101 ev_prepare_init (&pending_w, pendingcb);
2622 3102
2623#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3103#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2626#endif 3106#endif
2627 } 3107 }
2628} 3108}
2629 3109
2630/* free up a loop structure */ 3110/* free up a loop structure */
2631void ecb_cold 3111ecb_cold
3112void
2632ev_loop_destroy (EV_P) 3113ev_loop_destroy (EV_P)
2633{ 3114{
2634 int i; 3115 int i;
2635 3116
2636#if EV_MULTIPLICITY 3117#if EV_MULTIPLICITY
… …
2639 return; 3120 return;
2640#endif 3121#endif
2641 3122
2642#if EV_CLEANUP_ENABLE 3123#if EV_CLEANUP_ENABLE
2643 /* queue cleanup watchers (and execute them) */ 3124 /* queue cleanup watchers (and execute them) */
2644 if (expect_false (cleanupcnt)) 3125 if (ecb_expect_false (cleanupcnt))
2645 { 3126 {
2646 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3127 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2647 EV_INVOKE_PENDING; 3128 EV_INVOKE_PENDING;
2648 } 3129 }
2649#endif 3130#endif
… …
2677 3158
2678 if (backend_fd >= 0) 3159 if (backend_fd >= 0)
2679 close (backend_fd); 3160 close (backend_fd);
2680 3161
2681#if EV_USE_IOCP 3162#if EV_USE_IOCP
2682 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3163 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2683#endif 3164#endif
2684#if EV_USE_PORT 3165#if EV_USE_PORT
2685 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3166 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2686#endif 3167#endif
2687#if EV_USE_KQUEUE 3168#if EV_USE_KQUEUE
2688 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);
2689#endif 3176#endif
2690#if EV_USE_EPOLL 3177#if EV_USE_EPOLL
2691 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3178 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2692#endif 3179#endif
2693#if EV_USE_POLL 3180#if EV_USE_POLL
2694 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3181 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2695#endif 3182#endif
2696#if EV_USE_SELECT 3183#if EV_USE_SELECT
2697 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3184 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2698#endif 3185#endif
2699 3186
2700 for (i = NUMPRI; i--; ) 3187 for (i = NUMPRI; i--; )
2701 { 3188 {
2702 array_free (pending, [i]); 3189 array_free (pending, [i]);
… …
2744 3231
2745inline_size void 3232inline_size void
2746loop_fork (EV_P) 3233loop_fork (EV_P)
2747{ 3234{
2748#if EV_USE_PORT 3235#if EV_USE_PORT
2749 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3236 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2750#endif 3237#endif
2751#if EV_USE_KQUEUE 3238#if EV_USE_KQUEUE
2752 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);
2753#endif 3246#endif
2754#if EV_USE_EPOLL 3247#if EV_USE_EPOLL
2755 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3248 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2756#endif 3249#endif
2757#if EV_USE_INOTIFY 3250#if EV_USE_INOTIFY
2758 infy_fork (EV_A); 3251 infy_fork (EV_A);
2759#endif 3252#endif
2760 3253
2761#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3254#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2762 if (ev_is_active (&pipe_w)) 3255 if (ev_is_active (&pipe_w) && postfork != 2)
2763 { 3256 {
2764 /* 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 */
2765 3258
2766 ev_ref (EV_A); 3259 ev_ref (EV_A);
2767 ev_io_stop (EV_A_ &pipe_w); 3260 ev_io_stop (EV_A_ &pipe_w);
… …
2778 postfork = 0; 3271 postfork = 0;
2779} 3272}
2780 3273
2781#if EV_MULTIPLICITY 3274#if EV_MULTIPLICITY
2782 3275
3276ecb_cold
2783struct ev_loop * ecb_cold 3277struct ev_loop *
2784ev_loop_new (unsigned int flags) EV_THROW 3278ev_loop_new (unsigned int flags) EV_NOEXCEPT
2785{ 3279{
2786 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3280 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2787 3281
2788 memset (EV_A, 0, sizeof (struct ev_loop)); 3282 memset (EV_A, 0, sizeof (struct ev_loop));
2789 loop_init (EV_A_ flags); 3283 loop_init (EV_A_ flags);
… …
2796} 3290}
2797 3291
2798#endif /* multiplicity */ 3292#endif /* multiplicity */
2799 3293
2800#if EV_VERIFY 3294#if EV_VERIFY
2801static void noinline ecb_cold 3295ecb_noinline ecb_cold
3296static void
2802verify_watcher (EV_P_ W w) 3297verify_watcher (EV_P_ W w)
2803{ 3298{
2804 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));
2805 3300
2806 if (w->pending) 3301 if (w->pending)
2807 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));
2808} 3303}
2809 3304
2810static void noinline ecb_cold 3305ecb_noinline ecb_cold
3306static void
2811verify_heap (EV_P_ ANHE *heap, int N) 3307verify_heap (EV_P_ ANHE *heap, int N)
2812{ 3308{
2813 int i; 3309 int i;
2814 3310
2815 for (i = HEAP0; i < N + HEAP0; ++i) 3311 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2820 3316
2821 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3317 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2822 } 3318 }
2823} 3319}
2824 3320
2825static void noinline ecb_cold 3321ecb_noinline ecb_cold
3322static void
2826array_verify (EV_P_ W *ws, int cnt) 3323array_verify (EV_P_ W *ws, int cnt)
2827{ 3324{
2828 while (cnt--) 3325 while (cnt--)
2829 { 3326 {
2830 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3327 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2833} 3330}
2834#endif 3331#endif
2835 3332
2836#if EV_FEATURE_API 3333#if EV_FEATURE_API
2837void ecb_cold 3334void ecb_cold
2838ev_verify (EV_P) EV_THROW 3335ev_verify (EV_P) EV_NOEXCEPT
2839{ 3336{
2840#if EV_VERIFY 3337#if EV_VERIFY
2841 int i; 3338 int i;
2842 WL w, w2; 3339 WL w, w2;
2843 3340
… …
2919#endif 3416#endif
2920} 3417}
2921#endif 3418#endif
2922 3419
2923#if EV_MULTIPLICITY 3420#if EV_MULTIPLICITY
3421ecb_cold
2924struct ev_loop * ecb_cold 3422struct ev_loop *
2925#else 3423#else
2926int 3424int
2927#endif 3425#endif
2928ev_default_loop (unsigned int flags) EV_THROW 3426ev_default_loop (unsigned int flags) EV_NOEXCEPT
2929{ 3427{
2930 if (!ev_default_loop_ptr) 3428 if (!ev_default_loop_ptr)
2931 { 3429 {
2932#if EV_MULTIPLICITY 3430#if EV_MULTIPLICITY
2933 EV_P = ev_default_loop_ptr = &default_loop_struct; 3431 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2952 3450
2953 return ev_default_loop_ptr; 3451 return ev_default_loop_ptr;
2954} 3452}
2955 3453
2956void 3454void
2957ev_loop_fork (EV_P) EV_THROW 3455ev_loop_fork (EV_P) EV_NOEXCEPT
2958{ 3456{
2959 postfork = 1; 3457 postfork = 1;
2960} 3458}
2961 3459
2962/*****************************************************************************/ 3460/*****************************************************************************/
… …
2966{ 3464{
2967 EV_CB_INVOKE ((W)w, revents); 3465 EV_CB_INVOKE ((W)w, revents);
2968} 3466}
2969 3467
2970unsigned int 3468unsigned int
2971ev_pending_count (EV_P) EV_THROW 3469ev_pending_count (EV_P) EV_NOEXCEPT
2972{ 3470{
2973 int pri; 3471 int pri;
2974 unsigned int count = 0; 3472 unsigned int count = 0;
2975 3473
2976 for (pri = NUMPRI; pri--; ) 3474 for (pri = NUMPRI; pri--; )
2977 count += pendingcnt [pri]; 3475 count += pendingcnt [pri];
2978 3476
2979 return count; 3477 return count;
2980} 3478}
2981 3479
2982void noinline 3480ecb_noinline
3481void
2983ev_invoke_pending (EV_P) 3482ev_invoke_pending (EV_P)
2984{ 3483{
2985 pendingpri = NUMPRI; 3484 pendingpri = NUMPRI;
2986 3485
2987 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3486 do
2988 { 3487 {
2989 --pendingpri; 3488 --pendingpri;
2990 3489
3490 /* pendingpri possibly gets modified in the inner loop */
2991 while (pendingcnt [pendingpri]) 3491 while (pendingcnt [pendingpri])
2992 { 3492 {
2993 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3493 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2994 3494
2995 p->w->pending = 0; 3495 p->w->pending = 0;
2996 EV_CB_INVOKE (p->w, p->events); 3496 EV_CB_INVOKE (p->w, p->events);
2997 EV_FREQUENT_CHECK; 3497 EV_FREQUENT_CHECK;
2998 } 3498 }
2999 } 3499 }
3500 while (pendingpri);
3000} 3501}
3001 3502
3002#if EV_IDLE_ENABLE 3503#if EV_IDLE_ENABLE
3003/* make idle watchers pending. this handles the "call-idle */ 3504/* make idle watchers pending. this handles the "call-idle */
3004/* only when higher priorities are idle" logic */ 3505/* only when higher priorities are idle" logic */
3005inline_size void 3506inline_size void
3006idle_reify (EV_P) 3507idle_reify (EV_P)
3007{ 3508{
3008 if (expect_false (idleall)) 3509 if (ecb_expect_false (idleall))
3009 { 3510 {
3010 int pri; 3511 int pri;
3011 3512
3012 for (pri = NUMPRI; pri--; ) 3513 for (pri = NUMPRI; pri--; )
3013 { 3514 {
… …
3062 } 3563 }
3063} 3564}
3064 3565
3065#if EV_PERIODIC_ENABLE 3566#if EV_PERIODIC_ENABLE
3066 3567
3067static void noinline 3568ecb_noinline
3569static void
3068periodic_recalc (EV_P_ ev_periodic *w) 3570periodic_recalc (EV_P_ ev_periodic *w)
3069{ 3571{
3070 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3572 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3071 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);
3072 3574
… …
3074 while (at <= ev_rt_now) 3576 while (at <= ev_rt_now)
3075 { 3577 {
3076 ev_tstamp nat = at + w->interval; 3578 ev_tstamp nat = at + w->interval;
3077 3579
3078 /* when resolution fails us, we use ev_rt_now */ 3580 /* when resolution fails us, we use ev_rt_now */
3079 if (expect_false (nat == at)) 3581 if (ecb_expect_false (nat == at))
3080 { 3582 {
3081 at = ev_rt_now; 3583 at = ev_rt_now;
3082 break; 3584 break;
3083 } 3585 }
3084 3586
… …
3130 } 3632 }
3131} 3633}
3132 3634
3133/* simply recalculate all periodics */ 3635/* simply recalculate all periodics */
3134/* 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? */
3135static void noinline ecb_cold 3637ecb_noinline ecb_cold
3638static void
3136periodics_reschedule (EV_P) 3639periodics_reschedule (EV_P)
3137{ 3640{
3138 int i; 3641 int i;
3139 3642
3140 /* adjust periodics after time jump */ 3643 /* adjust periodics after time jump */
… …
3153 reheap (periodics, periodiccnt); 3656 reheap (periodics, periodiccnt);
3154} 3657}
3155#endif 3658#endif
3156 3659
3157/* adjust all timers by a given offset */ 3660/* adjust all timers by a given offset */
3158static void noinline ecb_cold 3661ecb_noinline ecb_cold
3662static void
3159timers_reschedule (EV_P_ ev_tstamp adjust) 3663timers_reschedule (EV_P_ ev_tstamp adjust)
3160{ 3664{
3161 int i; 3665 int i;
3162 3666
3163 for (i = 0; i < timercnt; ++i) 3667 for (i = 0; i < timercnt; ++i)
… …
3172/* also detect if there was a timejump, and act accordingly */ 3676/* also detect if there was a timejump, and act accordingly */
3173inline_speed void 3677inline_speed void
3174time_update (EV_P_ ev_tstamp max_block) 3678time_update (EV_P_ ev_tstamp max_block)
3175{ 3679{
3176#if EV_USE_MONOTONIC 3680#if EV_USE_MONOTONIC
3177 if (expect_true (have_monotonic)) 3681 if (ecb_expect_true (have_monotonic))
3178 { 3682 {
3179 int i; 3683 int i;
3180 ev_tstamp odiff = rtmn_diff; 3684 ev_tstamp odiff = rtmn_diff;
3181 3685
3182 mn_now = get_clock (); 3686 mn_now = get_clock ();
3183 3687
3184 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3688 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3185 /* interpolate in the meantime */ 3689 /* interpolate in the meantime */
3186 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3690 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3187 { 3691 {
3188 ev_rt_now = rtmn_diff + mn_now; 3692 ev_rt_now = rtmn_diff + mn_now;
3189 return; 3693 return;
3190 } 3694 }
3191 3695
… …
3205 ev_tstamp diff; 3709 ev_tstamp diff;
3206 rtmn_diff = ev_rt_now - mn_now; 3710 rtmn_diff = ev_rt_now - mn_now;
3207 3711
3208 diff = odiff - rtmn_diff; 3712 diff = odiff - rtmn_diff;
3209 3713
3210 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3714 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3211 return; /* all is well */ 3715 return; /* all is well */
3212 3716
3213 ev_rt_now = ev_time (); 3717 ev_rt_now = ev_time ();
3214 mn_now = get_clock (); 3718 mn_now = get_clock ();
3215 now_floor = mn_now; 3719 now_floor = mn_now;
… …
3224 else 3728 else
3225#endif 3729#endif
3226 { 3730 {
3227 ev_rt_now = ev_time (); 3731 ev_rt_now = ev_time ();
3228 3732
3229 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))
3230 { 3734 {
3231 /* 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 */
3232 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3736 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3233#if EV_PERIODIC_ENABLE 3737#if EV_PERIODIC_ENABLE
3234 periodics_reschedule (EV_A); 3738 periodics_reschedule (EV_A);
… …
3257#if EV_VERIFY >= 2 3761#if EV_VERIFY >= 2
3258 ev_verify (EV_A); 3762 ev_verify (EV_A);
3259#endif 3763#endif
3260 3764
3261#ifndef _WIN32 3765#ifndef _WIN32
3262 if (expect_false (curpid)) /* penalise the forking check even more */ 3766 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3263 if (expect_false (getpid () != curpid)) 3767 if (ecb_expect_false (getpid () != curpid))
3264 { 3768 {
3265 curpid = getpid (); 3769 curpid = getpid ();
3266 postfork = 1; 3770 postfork = 1;
3267 } 3771 }
3268#endif 3772#endif
3269 3773
3270#if EV_FORK_ENABLE 3774#if EV_FORK_ENABLE
3271 /* we might have forked, so queue fork handlers */ 3775 /* we might have forked, so queue fork handlers */
3272 if (expect_false (postfork)) 3776 if (ecb_expect_false (postfork))
3273 if (forkcnt) 3777 if (forkcnt)
3274 { 3778 {
3275 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3779 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3276 EV_INVOKE_PENDING; 3780 EV_INVOKE_PENDING;
3277 } 3781 }
3278#endif 3782#endif
3279 3783
3280#if EV_PREPARE_ENABLE 3784#if EV_PREPARE_ENABLE
3281 /* queue prepare watchers (and execute them) */ 3785 /* queue prepare watchers (and execute them) */
3282 if (expect_false (preparecnt)) 3786 if (ecb_expect_false (preparecnt))
3283 { 3787 {
3284 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3788 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3285 EV_INVOKE_PENDING; 3789 EV_INVOKE_PENDING;
3286 } 3790 }
3287#endif 3791#endif
3288 3792
3289 if (expect_false (loop_done)) 3793 if (ecb_expect_false (loop_done))
3290 break; 3794 break;
3291 3795
3292 /* we might have forked, so reify kernel state if necessary */ 3796 /* we might have forked, so reify kernel state if necessary */
3293 if (expect_false (postfork)) 3797 if (ecb_expect_false (postfork))
3294 loop_fork (EV_A); 3798 loop_fork (EV_A);
3295 3799
3296 /* update fd-related kernel structures */ 3800 /* update fd-related kernel structures */
3297 fd_reify (EV_A); 3801 fd_reify (EV_A);
3298 3802
… …
3310 /* from now on, we want a pipe-wake-up */ 3814 /* from now on, we want a pipe-wake-up */
3311 pipe_write_wanted = 1; 3815 pipe_write_wanted = 1;
3312 3816
3313 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 */
3314 3818
3315 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3819 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3316 { 3820 {
3317 waittime = MAX_BLOCKTIME; 3821 waittime = MAX_BLOCKTIME;
3318 3822
3319 if (timercnt) 3823 if (timercnt)
3320 { 3824 {
… …
3329 if (waittime > to) waittime = to; 3833 if (waittime > to) waittime = to;
3330 } 3834 }
3331#endif 3835#endif
3332 3836
3333 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3837 /* don't let timeouts decrease the waittime below timeout_blocktime */
3334 if (expect_false (waittime < timeout_blocktime)) 3838 if (ecb_expect_false (waittime < timeout_blocktime))
3335 waittime = timeout_blocktime; 3839 waittime = timeout_blocktime;
3336 3840
3337 /* 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 */
3338 /* to pass a minimum nonzero value to the backend */ 3842 /* to pass a minimum nonzero value to the backend */
3339 if (expect_false (waittime < backend_mintime)) 3843 if (ecb_expect_false (waittime < backend_mintime))
3340 waittime = backend_mintime; 3844 waittime = backend_mintime;
3341 3845
3342 /* extra check because io_blocktime is commonly 0 */ 3846 /* extra check because io_blocktime is commonly 0 */
3343 if (expect_false (io_blocktime)) 3847 if (ecb_expect_false (io_blocktime))
3344 { 3848 {
3345 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3849 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3346 3850
3347 if (sleeptime > waittime - backend_mintime) 3851 if (sleeptime > waittime - backend_mintime)
3348 sleeptime = waittime - backend_mintime; 3852 sleeptime = waittime - backend_mintime;
3349 3853
3350 if (expect_true (sleeptime > 0.)) 3854 if (ecb_expect_true (sleeptime > 0.))
3351 { 3855 {
3352 ev_sleep (sleeptime); 3856 ev_sleep (sleeptime);
3353 waittime -= sleeptime; 3857 waittime -= sleeptime;
3354 } 3858 }
3355 } 3859 }
… …
3369 { 3873 {
3370 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)));
3371 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3875 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3372 } 3876 }
3373 3877
3374
3375 /* update ev_rt_now, do magic */ 3878 /* update ev_rt_now, do magic */
3376 time_update (EV_A_ waittime + sleeptime); 3879 time_update (EV_A_ waittime + sleeptime);
3377 } 3880 }
3378 3881
3379 /* queue pending timers and reschedule them */ 3882 /* queue pending timers and reschedule them */
… …
3387 idle_reify (EV_A); 3890 idle_reify (EV_A);
3388#endif 3891#endif
3389 3892
3390#if EV_CHECK_ENABLE 3893#if EV_CHECK_ENABLE
3391 /* queue check watchers, to be executed first */ 3894 /* queue check watchers, to be executed first */
3392 if (expect_false (checkcnt)) 3895 if (ecb_expect_false (checkcnt))
3393 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3896 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3394#endif 3897#endif
3395 3898
3396 EV_INVOKE_PENDING; 3899 EV_INVOKE_PENDING;
3397 } 3900 }
3398 while (expect_true ( 3901 while (ecb_expect_true (
3399 activecnt 3902 activecnt
3400 && !loop_done 3903 && !loop_done
3401 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3904 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3402 )); 3905 ));
3403 3906
… …
3410 3913
3411 return activecnt; 3914 return activecnt;
3412} 3915}
3413 3916
3414void 3917void
3415ev_break (EV_P_ int how) EV_THROW 3918ev_break (EV_P_ int how) EV_NOEXCEPT
3416{ 3919{
3417 loop_done = how; 3920 loop_done = how;
3418} 3921}
3419 3922
3420void 3923void
3421ev_ref (EV_P) EV_THROW 3924ev_ref (EV_P) EV_NOEXCEPT
3422{ 3925{
3423 ++activecnt; 3926 ++activecnt;
3424} 3927}
3425 3928
3426void 3929void
3427ev_unref (EV_P) EV_THROW 3930ev_unref (EV_P) EV_NOEXCEPT
3428{ 3931{
3429 --activecnt; 3932 --activecnt;
3430} 3933}
3431 3934
3432void 3935void
3433ev_now_update (EV_P) EV_THROW 3936ev_now_update (EV_P) EV_NOEXCEPT
3434{ 3937{
3435 time_update (EV_A_ 1e100); 3938 time_update (EV_A_ 1e100);
3436} 3939}
3437 3940
3438void 3941void
3439ev_suspend (EV_P) EV_THROW 3942ev_suspend (EV_P) EV_NOEXCEPT
3440{ 3943{
3441 ev_now_update (EV_A); 3944 ev_now_update (EV_A);
3442} 3945}
3443 3946
3444void 3947void
3445ev_resume (EV_P) EV_THROW 3948ev_resume (EV_P) EV_NOEXCEPT
3446{ 3949{
3447 ev_tstamp mn_prev = mn_now; 3950 ev_tstamp mn_prev = mn_now;
3448 3951
3449 ev_now_update (EV_A); 3952 ev_now_update (EV_A);
3450 timers_reschedule (EV_A_ mn_now - mn_prev); 3953 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3467inline_size void 3970inline_size void
3468wlist_del (WL *head, WL elem) 3971wlist_del (WL *head, WL elem)
3469{ 3972{
3470 while (*head) 3973 while (*head)
3471 { 3974 {
3472 if (expect_true (*head == elem)) 3975 if (ecb_expect_true (*head == elem))
3473 { 3976 {
3474 *head = elem->next; 3977 *head = elem->next;
3475 break; 3978 break;
3476 } 3979 }
3477 3980
… …
3489 w->pending = 0; 3992 w->pending = 0;
3490 } 3993 }
3491} 3994}
3492 3995
3493int 3996int
3494ev_clear_pending (EV_P_ void *w) EV_THROW 3997ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3495{ 3998{
3496 W w_ = (W)w; 3999 W w_ = (W)w;
3497 int pending = w_->pending; 4000 int pending = w_->pending;
3498 4001
3499 if (expect_true (pending)) 4002 if (ecb_expect_true (pending))
3500 { 4003 {
3501 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4004 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3502 p->w = (W)&pending_w; 4005 p->w = (W)&pending_w;
3503 w_->pending = 0; 4006 w_->pending = 0;
3504 return p->events; 4007 return p->events;
… …
3531 w->active = 0; 4034 w->active = 0;
3532} 4035}
3533 4036
3534/*****************************************************************************/ 4037/*****************************************************************************/
3535 4038
3536void noinline 4039ecb_noinline
4040void
3537ev_io_start (EV_P_ ev_io *w) EV_THROW 4041ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3538{ 4042{
3539 int fd = w->fd; 4043 int fd = w->fd;
3540 4044
3541 if (expect_false (ev_is_active (w))) 4045 if (ecb_expect_false (ev_is_active (w)))
3542 return; 4046 return;
3543 4047
3544 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4048 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3545 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))));
3546 4050
4051#if EV_VERIFY >= 2
4052 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4053#endif
3547 EV_FREQUENT_CHECK; 4054 EV_FREQUENT_CHECK;
3548 4055
3549 ev_start (EV_A_ (W)w, 1); 4056 ev_start (EV_A_ (W)w, 1);
3550 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4057 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3551 wlist_add (&anfds[fd].head, (WL)w); 4058 wlist_add (&anfds[fd].head, (WL)w);
3552 4059
3553 /* common bug, apparently */ 4060 /* common bug, apparently */
3554 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));
3555 4062
… …
3557 w->events &= ~EV__IOFDSET; 4064 w->events &= ~EV__IOFDSET;
3558 4065
3559 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
3560} 4067}
3561 4068
3562void noinline 4069ecb_noinline
4070void
3563ev_io_stop (EV_P_ ev_io *w) EV_THROW 4071ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3564{ 4072{
3565 clear_pending (EV_A_ (W)w); 4073 clear_pending (EV_A_ (W)w);
3566 if (expect_false (!ev_is_active (w))) 4074 if (ecb_expect_false (!ev_is_active (w)))
3567 return; 4075 return;
3568 4076
3569 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));
3570 4078
4079#if EV_VERIFY >= 2
4080 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4081#endif
3571 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3572 4083
3573 wlist_del (&anfds[w->fd].head, (WL)w); 4084 wlist_del (&anfds[w->fd].head, (WL)w);
3574 ev_stop (EV_A_ (W)w); 4085 ev_stop (EV_A_ (W)w);
3575 4086
3576 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4087 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3577 4088
3578 EV_FREQUENT_CHECK; 4089 EV_FREQUENT_CHECK;
3579} 4090}
3580 4091
3581void noinline 4092ecb_noinline
4093void
3582ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4094ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3583{ 4095{
3584 if (expect_false (ev_is_active (w))) 4096 if (ecb_expect_false (ev_is_active (w)))
3585 return; 4097 return;
3586 4098
3587 ev_at (w) += mn_now; 4099 ev_at (w) += mn_now;
3588 4100
3589 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.));
3590 4102
3591 EV_FREQUENT_CHECK; 4103 EV_FREQUENT_CHECK;
3592 4104
3593 ++timercnt; 4105 ++timercnt;
3594 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4106 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3595 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4107 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3596 ANHE_w (timers [ev_active (w)]) = (WT)w; 4108 ANHE_w (timers [ev_active (w)]) = (WT)w;
3597 ANHE_at_cache (timers [ev_active (w)]); 4109 ANHE_at_cache (timers [ev_active (w)]);
3598 upheap (timers, ev_active (w)); 4110 upheap (timers, ev_active (w));
3599 4111
3600 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3601 4113
3602 /*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));*/
3603} 4115}
3604 4116
3605void noinline 4117ecb_noinline
4118void
3606ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4119ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3607{ 4120{
3608 clear_pending (EV_A_ (W)w); 4121 clear_pending (EV_A_ (W)w);
3609 if (expect_false (!ev_is_active (w))) 4122 if (ecb_expect_false (!ev_is_active (w)))
3610 return; 4123 return;
3611 4124
3612 EV_FREQUENT_CHECK; 4125 EV_FREQUENT_CHECK;
3613 4126
3614 { 4127 {
… …
3616 4129
3617 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));
3618 4131
3619 --timercnt; 4132 --timercnt;
3620 4133
3621 if (expect_true (active < timercnt + HEAP0)) 4134 if (ecb_expect_true (active < timercnt + HEAP0))
3622 { 4135 {
3623 timers [active] = timers [timercnt + HEAP0]; 4136 timers [active] = timers [timercnt + HEAP0];
3624 adjustheap (timers, timercnt, active); 4137 adjustheap (timers, timercnt, active);
3625 } 4138 }
3626 } 4139 }
… …
3630 ev_stop (EV_A_ (W)w); 4143 ev_stop (EV_A_ (W)w);
3631 4144
3632 EV_FREQUENT_CHECK; 4145 EV_FREQUENT_CHECK;
3633} 4146}
3634 4147
3635void noinline 4148ecb_noinline
4149void
3636ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4150ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3637{ 4151{
3638 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
3639 4153
3640 clear_pending (EV_A_ (W)w); 4154 clear_pending (EV_A_ (W)w);
3641 4155
… …
3658 4172
3659 EV_FREQUENT_CHECK; 4173 EV_FREQUENT_CHECK;
3660} 4174}
3661 4175
3662ev_tstamp 4176ev_tstamp
3663ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4177ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3664{ 4178{
3665 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4179 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3666} 4180}
3667 4181
3668#if EV_PERIODIC_ENABLE 4182#if EV_PERIODIC_ENABLE
3669void noinline 4183ecb_noinline
4184void
3670ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4185ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3671{ 4186{
3672 if (expect_false (ev_is_active (w))) 4187 if (ecb_expect_false (ev_is_active (w)))
3673 return; 4188 return;
3674 4189
3675 if (w->reschedule_cb) 4190 if (w->reschedule_cb)
3676 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4191 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3677 else if (w->interval) 4192 else if (w->interval)
… …
3684 4199
3685 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3686 4201
3687 ++periodiccnt; 4202 ++periodiccnt;
3688 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4203 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3689 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4204 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3690 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4205 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3691 ANHE_at_cache (periodics [ev_active (w)]); 4206 ANHE_at_cache (periodics [ev_active (w)]);
3692 upheap (periodics, ev_active (w)); 4207 upheap (periodics, ev_active (w));
3693 4208
3694 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
3695 4210
3696 /*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));*/
3697} 4212}
3698 4213
3699void noinline 4214ecb_noinline
4215void
3700ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4216ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3701{ 4217{
3702 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3703 if (expect_false (!ev_is_active (w))) 4219 if (ecb_expect_false (!ev_is_active (w)))
3704 return; 4220 return;
3705 4221
3706 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3707 4223
3708 { 4224 {
… …
3710 4226
3711 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));
3712 4228
3713 --periodiccnt; 4229 --periodiccnt;
3714 4230
3715 if (expect_true (active < periodiccnt + HEAP0)) 4231 if (ecb_expect_true (active < periodiccnt + HEAP0))
3716 { 4232 {
3717 periodics [active] = periodics [periodiccnt + HEAP0]; 4233 periodics [active] = periodics [periodiccnt + HEAP0];
3718 adjustheap (periodics, periodiccnt, active); 4234 adjustheap (periodics, periodiccnt, active);
3719 } 4235 }
3720 } 4236 }
… …
3722 ev_stop (EV_A_ (W)w); 4238 ev_stop (EV_A_ (W)w);
3723 4239
3724 EV_FREQUENT_CHECK; 4240 EV_FREQUENT_CHECK;
3725} 4241}
3726 4242
3727void noinline 4243ecb_noinline
4244void
3728ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4245ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3729{ 4246{
3730 /* TODO: use adjustheap and recalculation */ 4247 /* TODO: use adjustheap and recalculation */
3731 ev_periodic_stop (EV_A_ w); 4248 ev_periodic_stop (EV_A_ w);
3732 ev_periodic_start (EV_A_ w); 4249 ev_periodic_start (EV_A_ w);
3733} 4250}
… …
3737# define SA_RESTART 0 4254# define SA_RESTART 0
3738#endif 4255#endif
3739 4256
3740#if EV_SIGNAL_ENABLE 4257#if EV_SIGNAL_ENABLE
3741 4258
3742void noinline 4259ecb_noinline
4260void
3743ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4261ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3744{ 4262{
3745 if (expect_false (ev_is_active (w))) 4263 if (ecb_expect_false (ev_is_active (w)))
3746 return; 4264 return;
3747 4265
3748 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));
3749 4267
3750#if EV_MULTIPLICITY 4268#if EV_MULTIPLICITY
… …
3819 } 4337 }
3820 4338
3821 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
3822} 4340}
3823 4341
3824void noinline 4342ecb_noinline
4343void
3825ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4344ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3826{ 4345{
3827 clear_pending (EV_A_ (W)w); 4346 clear_pending (EV_A_ (W)w);
3828 if (expect_false (!ev_is_active (w))) 4347 if (ecb_expect_false (!ev_is_active (w)))
3829 return; 4348 return;
3830 4349
3831 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
3832 4351
3833 wlist_del (&signals [w->signum - 1].head, (WL)w); 4352 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3861#endif 4380#endif
3862 4381
3863#if EV_CHILD_ENABLE 4382#if EV_CHILD_ENABLE
3864 4383
3865void 4384void
3866ev_child_start (EV_P_ ev_child *w) EV_THROW 4385ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3867{ 4386{
3868#if EV_MULTIPLICITY 4387#if EV_MULTIPLICITY
3869 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));
3870#endif 4389#endif
3871 if (expect_false (ev_is_active (w))) 4390 if (ecb_expect_false (ev_is_active (w)))
3872 return; 4391 return;
3873 4392
3874 EV_FREQUENT_CHECK; 4393 EV_FREQUENT_CHECK;
3875 4394
3876 ev_start (EV_A_ (W)w, 1); 4395 ev_start (EV_A_ (W)w, 1);
… …
3878 4397
3879 EV_FREQUENT_CHECK; 4398 EV_FREQUENT_CHECK;
3880} 4399}
3881 4400
3882void 4401void
3883ev_child_stop (EV_P_ ev_child *w) EV_THROW 4402ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3884{ 4403{
3885 clear_pending (EV_A_ (W)w); 4404 clear_pending (EV_A_ (W)w);
3886 if (expect_false (!ev_is_active (w))) 4405 if (ecb_expect_false (!ev_is_active (w)))
3887 return; 4406 return;
3888 4407
3889 EV_FREQUENT_CHECK; 4408 EV_FREQUENT_CHECK;
3890 4409
3891 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4410 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3905 4424
3906#define DEF_STAT_INTERVAL 5.0074891 4425#define DEF_STAT_INTERVAL 5.0074891
3907#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4426#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3908#define MIN_STAT_INTERVAL 0.1074891 4427#define MIN_STAT_INTERVAL 0.1074891
3909 4428
3910static 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);
3911 4430
3912#if EV_USE_INOTIFY 4431#if EV_USE_INOTIFY
3913 4432
3914/* 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 */
3915# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4434# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3916 4435
3917static void noinline 4436ecb_noinline
4437static void
3918infy_add (EV_P_ ev_stat *w) 4438infy_add (EV_P_ ev_stat *w)
3919{ 4439{
3920 w->wd = inotify_add_watch (fs_fd, w->path, 4440 w->wd = inotify_add_watch (fs_fd, w->path,
3921 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4441 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3922 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4442 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3986 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4506 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3987 ev_timer_again (EV_A_ &w->timer); 4507 ev_timer_again (EV_A_ &w->timer);
3988 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4508 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3989} 4509}
3990 4510
3991static void noinline 4511ecb_noinline
4512static void
3992infy_del (EV_P_ ev_stat *w) 4513infy_del (EV_P_ ev_stat *w)
3993{ 4514{
3994 int slot; 4515 int slot;
3995 int wd = w->wd; 4516 int wd = w->wd;
3996 4517
… …
4003 4524
4004 /* remove this watcher, if others are watching it, they will rearm */ 4525 /* remove this watcher, if others are watching it, they will rearm */
4005 inotify_rm_watch (fs_fd, wd); 4526 inotify_rm_watch (fs_fd, wd);
4006} 4527}
4007 4528
4008static void noinline 4529ecb_noinline
4530static void
4009infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4531infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4010{ 4532{
4011 if (slot < 0) 4533 if (slot < 0)
4012 /* overflow, need to check for all hash slots */ 4534 /* overflow, need to check for all hash slots */
4013 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4535 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4049 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4571 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4050 ofs += sizeof (struct inotify_event) + ev->len; 4572 ofs += sizeof (struct inotify_event) + ev->len;
4051 } 4573 }
4052} 4574}
4053 4575
4054inline_size void ecb_cold 4576inline_size ecb_cold
4577void
4055ev_check_2625 (EV_P) 4578ev_check_2625 (EV_P)
4056{ 4579{
4057 /* kernels < 2.6.25 are borked 4580 /* kernels < 2.6.25 are borked
4058 * 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
4059 */ 4582 */
… …
4149#else 4672#else
4150# define EV_LSTAT(p,b) lstat (p, b) 4673# define EV_LSTAT(p,b) lstat (p, b)
4151#endif 4674#endif
4152 4675
4153void 4676void
4154ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4677ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4155{ 4678{
4156 if (lstat (w->path, &w->attr) < 0) 4679 if (lstat (w->path, &w->attr) < 0)
4157 w->attr.st_nlink = 0; 4680 w->attr.st_nlink = 0;
4158 else if (!w->attr.st_nlink) 4681 else if (!w->attr.st_nlink)
4159 w->attr.st_nlink = 1; 4682 w->attr.st_nlink = 1;
4160} 4683}
4161 4684
4162static void noinline 4685ecb_noinline
4686static void
4163stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4687stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4164{ 4688{
4165 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4689 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4166 4690
4167 ev_statdata prev = w->attr; 4691 ev_statdata prev = w->attr;
… …
4198 ev_feed_event (EV_A_ w, EV_STAT); 4722 ev_feed_event (EV_A_ w, EV_STAT);
4199 } 4723 }
4200} 4724}
4201 4725
4202void 4726void
4203ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4727ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4204{ 4728{
4205 if (expect_false (ev_is_active (w))) 4729 if (ecb_expect_false (ev_is_active (w)))
4206 return; 4730 return;
4207 4731
4208 ev_stat_stat (EV_A_ w); 4732 ev_stat_stat (EV_A_ w);
4209 4733
4210 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4734 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4229 4753
4230 EV_FREQUENT_CHECK; 4754 EV_FREQUENT_CHECK;
4231} 4755}
4232 4756
4233void 4757void
4234ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4758ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4235{ 4759{
4236 clear_pending (EV_A_ (W)w); 4760 clear_pending (EV_A_ (W)w);
4237 if (expect_false (!ev_is_active (w))) 4761 if (ecb_expect_false (!ev_is_active (w)))
4238 return; 4762 return;
4239 4763
4240 EV_FREQUENT_CHECK; 4764 EV_FREQUENT_CHECK;
4241 4765
4242#if EV_USE_INOTIFY 4766#if EV_USE_INOTIFY
… …
4255} 4779}
4256#endif 4780#endif
4257 4781
4258#if EV_IDLE_ENABLE 4782#if EV_IDLE_ENABLE
4259void 4783void
4260ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4784ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4261{ 4785{
4262 if (expect_false (ev_is_active (w))) 4786 if (ecb_expect_false (ev_is_active (w)))
4263 return; 4787 return;
4264 4788
4265 pri_adjust (EV_A_ (W)w); 4789 pri_adjust (EV_A_ (W)w);
4266 4790
4267 EV_FREQUENT_CHECK; 4791 EV_FREQUENT_CHECK;
… …
4270 int active = ++idlecnt [ABSPRI (w)]; 4794 int active = ++idlecnt [ABSPRI (w)];
4271 4795
4272 ++idleall; 4796 ++idleall;
4273 ev_start (EV_A_ (W)w, active); 4797 ev_start (EV_A_ (W)w, active);
4274 4798
4275 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);
4276 idles [ABSPRI (w)][active - 1] = w; 4800 idles [ABSPRI (w)][active - 1] = w;
4277 } 4801 }
4278 4802
4279 EV_FREQUENT_CHECK; 4803 EV_FREQUENT_CHECK;
4280} 4804}
4281 4805
4282void 4806void
4283ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4807ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4284{ 4808{
4285 clear_pending (EV_A_ (W)w); 4809 clear_pending (EV_A_ (W)w);
4286 if (expect_false (!ev_is_active (w))) 4810 if (ecb_expect_false (!ev_is_active (w)))
4287 return; 4811 return;
4288 4812
4289 EV_FREQUENT_CHECK; 4813 EV_FREQUENT_CHECK;
4290 4814
4291 { 4815 {
… …
4302} 4826}
4303#endif 4827#endif
4304 4828
4305#if EV_PREPARE_ENABLE 4829#if EV_PREPARE_ENABLE
4306void 4830void
4307ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4831ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4308{ 4832{
4309 if (expect_false (ev_is_active (w))) 4833 if (ecb_expect_false (ev_is_active (w)))
4310 return; 4834 return;
4311 4835
4312 EV_FREQUENT_CHECK; 4836 EV_FREQUENT_CHECK;
4313 4837
4314 ev_start (EV_A_ (W)w, ++preparecnt); 4838 ev_start (EV_A_ (W)w, ++preparecnt);
4315 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4839 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4316 prepares [preparecnt - 1] = w; 4840 prepares [preparecnt - 1] = w;
4317 4841
4318 EV_FREQUENT_CHECK; 4842 EV_FREQUENT_CHECK;
4319} 4843}
4320 4844
4321void 4845void
4322ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4846ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4323{ 4847{
4324 clear_pending (EV_A_ (W)w); 4848 clear_pending (EV_A_ (W)w);
4325 if (expect_false (!ev_is_active (w))) 4849 if (ecb_expect_false (!ev_is_active (w)))
4326 return; 4850 return;
4327 4851
4328 EV_FREQUENT_CHECK; 4852 EV_FREQUENT_CHECK;
4329 4853
4330 { 4854 {
… …
4340} 4864}
4341#endif 4865#endif
4342 4866
4343#if EV_CHECK_ENABLE 4867#if EV_CHECK_ENABLE
4344void 4868void
4345ev_check_start (EV_P_ ev_check *w) EV_THROW 4869ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4346{ 4870{
4347 if (expect_false (ev_is_active (w))) 4871 if (ecb_expect_false (ev_is_active (w)))
4348 return; 4872 return;
4349 4873
4350 EV_FREQUENT_CHECK; 4874 EV_FREQUENT_CHECK;
4351 4875
4352 ev_start (EV_A_ (W)w, ++checkcnt); 4876 ev_start (EV_A_ (W)w, ++checkcnt);
4353 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4877 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4354 checks [checkcnt - 1] = w; 4878 checks [checkcnt - 1] = w;
4355 4879
4356 EV_FREQUENT_CHECK; 4880 EV_FREQUENT_CHECK;
4357} 4881}
4358 4882
4359void 4883void
4360ev_check_stop (EV_P_ ev_check *w) EV_THROW 4884ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4361{ 4885{
4362 clear_pending (EV_A_ (W)w); 4886 clear_pending (EV_A_ (W)w);
4363 if (expect_false (!ev_is_active (w))) 4887 if (ecb_expect_false (!ev_is_active (w)))
4364 return; 4888 return;
4365 4889
4366 EV_FREQUENT_CHECK; 4890 EV_FREQUENT_CHECK;
4367 4891
4368 { 4892 {
… …
4377 EV_FREQUENT_CHECK; 4901 EV_FREQUENT_CHECK;
4378} 4902}
4379#endif 4903#endif
4380 4904
4381#if EV_EMBED_ENABLE 4905#if EV_EMBED_ENABLE
4382void noinline 4906ecb_noinline
4907void
4383ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4908ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4384{ 4909{
4385 ev_run (w->other, EVRUN_NOWAIT); 4910 ev_run (w->other, EVRUN_NOWAIT);
4386} 4911}
4387 4912
4388static void 4913static void
… …
4436 ev_idle_stop (EV_A_ idle); 4961 ev_idle_stop (EV_A_ idle);
4437} 4962}
4438#endif 4963#endif
4439 4964
4440void 4965void
4441ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4966ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4442{ 4967{
4443 if (expect_false (ev_is_active (w))) 4968 if (ecb_expect_false (ev_is_active (w)))
4444 return; 4969 return;
4445 4970
4446 { 4971 {
4447 EV_P = w->other; 4972 EV_P = w->other;
4448 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 ()));
… …
4467 4992
4468 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4469} 4994}
4470 4995
4471void 4996void
4472ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4997ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4473{ 4998{
4474 clear_pending (EV_A_ (W)w); 4999 clear_pending (EV_A_ (W)w);
4475 if (expect_false (!ev_is_active (w))) 5000 if (ecb_expect_false (!ev_is_active (w)))
4476 return; 5001 return;
4477 5002
4478 EV_FREQUENT_CHECK; 5003 EV_FREQUENT_CHECK;
4479 5004
4480 ev_io_stop (EV_A_ &w->io); 5005 ev_io_stop (EV_A_ &w->io);
… …
4487} 5012}
4488#endif 5013#endif
4489 5014
4490#if EV_FORK_ENABLE 5015#if EV_FORK_ENABLE
4491void 5016void
4492ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5017ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4493{ 5018{
4494 if (expect_false (ev_is_active (w))) 5019 if (ecb_expect_false (ev_is_active (w)))
4495 return; 5020 return;
4496 5021
4497 EV_FREQUENT_CHECK; 5022 EV_FREQUENT_CHECK;
4498 5023
4499 ev_start (EV_A_ (W)w, ++forkcnt); 5024 ev_start (EV_A_ (W)w, ++forkcnt);
4500 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5025 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4501 forks [forkcnt - 1] = w; 5026 forks [forkcnt - 1] = w;
4502 5027
4503 EV_FREQUENT_CHECK; 5028 EV_FREQUENT_CHECK;
4504} 5029}
4505 5030
4506void 5031void
4507ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5032ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4508{ 5033{
4509 clear_pending (EV_A_ (W)w); 5034 clear_pending (EV_A_ (W)w);
4510 if (expect_false (!ev_is_active (w))) 5035 if (ecb_expect_false (!ev_is_active (w)))
4511 return; 5036 return;
4512 5037
4513 EV_FREQUENT_CHECK; 5038 EV_FREQUENT_CHECK;
4514 5039
4515 { 5040 {
… …
4525} 5050}
4526#endif 5051#endif
4527 5052
4528#if EV_CLEANUP_ENABLE 5053#if EV_CLEANUP_ENABLE
4529void 5054void
4530ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5055ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4531{ 5056{
4532 if (expect_false (ev_is_active (w))) 5057 if (ecb_expect_false (ev_is_active (w)))
4533 return; 5058 return;
4534 5059
4535 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4536 5061
4537 ev_start (EV_A_ (W)w, ++cleanupcnt); 5062 ev_start (EV_A_ (W)w, ++cleanupcnt);
4538 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5063 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4539 cleanups [cleanupcnt - 1] = w; 5064 cleanups [cleanupcnt - 1] = w;
4540 5065
4541 /* cleanup watchers should never keep a refcount on the loop */ 5066 /* cleanup watchers should never keep a refcount on the loop */
4542 ev_unref (EV_A); 5067 ev_unref (EV_A);
4543 EV_FREQUENT_CHECK; 5068 EV_FREQUENT_CHECK;
4544} 5069}
4545 5070
4546void 5071void
4547ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5072ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4548{ 5073{
4549 clear_pending (EV_A_ (W)w); 5074 clear_pending (EV_A_ (W)w);
4550 if (expect_false (!ev_is_active (w))) 5075 if (ecb_expect_false (!ev_is_active (w)))
4551 return; 5076 return;
4552 5077
4553 EV_FREQUENT_CHECK; 5078 EV_FREQUENT_CHECK;
4554 ev_ref (EV_A); 5079 ev_ref (EV_A);
4555 5080
… …
4566} 5091}
4567#endif 5092#endif
4568 5093
4569#if EV_ASYNC_ENABLE 5094#if EV_ASYNC_ENABLE
4570void 5095void
4571ev_async_start (EV_P_ ev_async *w) EV_THROW 5096ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4572{ 5097{
4573 if (expect_false (ev_is_active (w))) 5098 if (ecb_expect_false (ev_is_active (w)))
4574 return; 5099 return;
4575 5100
4576 w->sent = 0; 5101 w->sent = 0;
4577 5102
4578 evpipe_init (EV_A); 5103 evpipe_init (EV_A);
4579 5104
4580 EV_FREQUENT_CHECK; 5105 EV_FREQUENT_CHECK;
4581 5106
4582 ev_start (EV_A_ (W)w, ++asynccnt); 5107 ev_start (EV_A_ (W)w, ++asynccnt);
4583 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5108 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4584 asyncs [asynccnt - 1] = w; 5109 asyncs [asynccnt - 1] = w;
4585 5110
4586 EV_FREQUENT_CHECK; 5111 EV_FREQUENT_CHECK;
4587} 5112}
4588 5113
4589void 5114void
4590ev_async_stop (EV_P_ ev_async *w) EV_THROW 5115ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4591{ 5116{
4592 clear_pending (EV_A_ (W)w); 5117 clear_pending (EV_A_ (W)w);
4593 if (expect_false (!ev_is_active (w))) 5118 if (ecb_expect_false (!ev_is_active (w)))
4594 return; 5119 return;
4595 5120
4596 EV_FREQUENT_CHECK; 5121 EV_FREQUENT_CHECK;
4597 5122
4598 { 5123 {
… …
4606 5131
4607 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4608} 5133}
4609 5134
4610void 5135void
4611ev_async_send (EV_P_ ev_async *w) EV_THROW 5136ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4612{ 5137{
4613 w->sent = 1; 5138 w->sent = 1;
4614 evpipe_write (EV_A_ &async_pending); 5139 evpipe_write (EV_A_ &async_pending);
4615} 5140}
4616#endif 5141#endif
… …
4653 5178
4654 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));
4655} 5180}
4656 5181
4657void 5182void
4658ev_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
4659{ 5184{
4660 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));
4661
4662 if (expect_false (!once))
4663 {
4664 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4665 return;
4666 }
4667 5186
4668 once->cb = cb; 5187 once->cb = cb;
4669 once->arg = arg; 5188 once->arg = arg;
4670 5189
4671 ev_init (&once->io, once_cb_io); 5190 ev_init (&once->io, once_cb_io);
… …
4684} 5203}
4685 5204
4686/*****************************************************************************/ 5205/*****************************************************************************/
4687 5206
4688#if EV_WALK_ENABLE 5207#if EV_WALK_ENABLE
4689void ecb_cold 5208ecb_cold
5209void
4690ev_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
4691{ 5211{
4692 int i, j; 5212 int i, j;
4693 ev_watcher_list *wl, *wn; 5213 ev_watcher_list *wl, *wn;
4694 5214
4695 if (types & (EV_IO | EV_EMBED)) 5215 if (types & (EV_IO | EV_EMBED))

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