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Comparing libev/ev.c (file contents):
Revision 1.458 by root, Sun Oct 27 16:26:07 2013 UTC vs.
Revision 1.511 by root, Fri Nov 22 14:32:13 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
… …
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
165#endif 183#endif
184
185/* OS X, in its infinite idiocy, actually HARDCODES
186 * a limit of 1024 into their select. Where people have brains,
187 * OS X engineers apparently have a vacuum. Or maybe they were
188 * ordered to have a vacuum, or they do anything for money.
189 * This might help. Or not.
190 * Note that this must be defined early, as other include files
191 * will rely on this define as well.
192 */
193#define _DARWIN_UNLIMITED_SELECT 1
166 194
167#include <stdlib.h> 195#include <stdlib.h>
168#include <string.h> 196#include <string.h>
169#include <fcntl.h> 197#include <fcntl.h>
170#include <stddef.h> 198#include <stddef.h>
… …
208# ifndef EV_SELECT_IS_WINSOCKET 236# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 237# define EV_SELECT_IS_WINSOCKET 1
210# endif 238# endif
211# undef EV_AVOID_STDIO 239# undef EV_AVOID_STDIO
212#endif 240#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 241
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 242/* this block tries to deduce configuration from header-defined symbols and defaults */
223 243
224/* try to deduce the maximum number of signals on this platform */ 244/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 245#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 261#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 262# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 263#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 264# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 265#else
246# error "unable to find value for NSIG, please report" 266# 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 267#endif
251 268
252#ifndef EV_USE_FLOOR 269#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 270# define EV_USE_FLOOR 0
254#endif 271#endif
255 272
256#ifndef EV_USE_CLOCK_SYSCALL 273#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 274# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 275# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 276# else
260# define EV_USE_CLOCK_SYSCALL 0 277# define EV_USE_CLOCK_SYSCALL 0
278# endif
279#endif
280
281#if !(_POSIX_TIMERS > 0)
282# ifndef EV_USE_MONOTONIC
283# define EV_USE_MONOTONIC 0
284# endif
285# ifndef EV_USE_REALTIME
286# define EV_USE_REALTIME 0
261# endif 287# endif
262#endif 288#endif
263 289
264#ifndef EV_USE_MONOTONIC 290#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 291# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 333
308#ifndef EV_USE_PORT 334#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 335# define EV_USE_PORT 0
310#endif 336#endif
311 337
338#ifndef EV_USE_LINUXAIO
339# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
340# define EV_USE_LINUXAIO 1
341# else
342# define EV_USE_LINUXAIO 0
343# endif
344#endif
345
346#ifndef EV_USE_IOURING
347# if __linux /* later checks might disable again */
348# define EV_USE_IOURING 1
349# else
350# define EV_USE_IOURING 0
351# endif
352#endif
353
312#ifndef EV_USE_INOTIFY 354#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 355# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 356# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 357# else
316# define EV_USE_INOTIFY 0 358# define EV_USE_INOTIFY 0
… …
357 399
358#ifndef EV_HEAP_CACHE_AT 400#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 401# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif 402#endif
361 403
362#ifdef ANDROID 404#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 405/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 406# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 407# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 408/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL 409# undef EV_USE_CLOCK_SYSCALL
… …
381# include <sys/syscall.h> 423# include <sys/syscall.h>
382# ifdef SYS_clock_gettime 424# ifdef SYS_clock_gettime
383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 425# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
384# undef EV_USE_MONOTONIC 426# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 1 427# define EV_USE_MONOTONIC 1
428# define EV_NEED_SYSCALL 1
386# else 429# else
387# undef EV_USE_CLOCK_SYSCALL 430# undef EV_USE_CLOCK_SYSCALL
388# define EV_USE_CLOCK_SYSCALL 0 431# define EV_USE_CLOCK_SYSCALL 0
389# endif 432# endif
390#endif 433#endif
… …
404#if !EV_STAT_ENABLE 447#if !EV_STAT_ENABLE
405# undef EV_USE_INOTIFY 448# undef EV_USE_INOTIFY
406# define EV_USE_INOTIFY 0 449# define EV_USE_INOTIFY 0
407#endif 450#endif
408 451
452#if __linux && EV_USE_IOURING
453# include <linux/fs.h>
454# ifndef RWF_SYNC
455# undef EV_USE_IOURING
456# define EV_USE_IOURING 0
457# endif
458#endif
459
409#if !EV_USE_NANOSLEEP 460#if !EV_USE_NANOSLEEP
410/* hp-ux has it in sys/time.h, which we unconditionally include above */ 461/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux 462# if !defined _WIN32 && !defined __hpux
412# include <sys/select.h> 463# include <sys/select.h>
464# endif
465#endif
466
467#if EV_USE_LINUXAIO
468# include <sys/syscall.h>
469# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
470# define EV_NEED_SYSCALL 1
471# else
472# undef EV_USE_LINUXAIO
473# define EV_USE_LINUXAIO 0
474# endif
475#endif
476
477#if EV_USE_IOURING
478# include <sys/syscall.h>
479# if !SYS_io_uring_setup && __linux && !__alpha
480# define SYS_io_uring_setup 425
481# define SYS_io_uring_enter 426
482# define SYS_io_uring_wregister 427
483# endif
484# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
485# define EV_NEED_SYSCALL 1
486# else
487# undef EV_USE_IOURING
488# define EV_USE_IOURING 0
413# endif 489# endif
414#endif 490#endif
415 491
416#if EV_USE_INOTIFY 492#if EV_USE_INOTIFY
417# include <sys/statfs.h> 493# include <sys/statfs.h>
… …
459 uint32_t ssi_signo; 535 uint32_t ssi_signo;
460 char pad[128 - sizeof (uint32_t)]; 536 char pad[128 - sizeof (uint32_t)];
461}; 537};
462#endif 538#endif
463 539
464/**/ 540/*****************************************************************************/
465 541
466#if EV_VERIFY >= 3 542#if EV_VERIFY >= 3
467# define EV_FREQUENT_CHECK ev_verify (EV_A) 543# define EV_FREQUENT_CHECK ev_verify (EV_A)
468#else 544#else
469# define EV_FREQUENT_CHECK do { } while (0) 545# define EV_FREQUENT_CHECK do { } while (0)
… …
474 * This value is good at least till the year 4000. 550 * This value is good at least till the year 4000.
475 */ 551 */
476#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 552#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
477/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 553/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
478 554
479#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 555#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
480#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 556#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
481 557
558/* find a portable timestamp that is "always" in the future but fits into time_t.
559 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
560 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
561#define EV_TSTAMP_HUGE \
562 (sizeof (time_t) >= 8 ? 10000000000000. \
563 : 0 < (time_t)4294967295 ? 4294967295. \
564 : 2147483647.) \
565
566#ifndef EV_TS_CONST
567# define EV_TS_CONST(nv) nv
568# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
569# define EV_TS_FROM_USEC(us) us * 1e-6
482#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 570# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
483#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 571# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
572# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
573# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
574#endif
484 575
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 576/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 577/* ECB.H BEGIN */
487/* 578/*
488 * libecb - http://software.schmorp.de/pkg/libecb 579 * libecb - http://software.schmorp.de/pkg/libecb
489 * 580 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 581 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 582 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 583 * All rights reserved.
493 * 584 *
494 * Redistribution and use in source and binary forms, with or without modifica- 585 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 586 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 600 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 601 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 602 * 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 603 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 604 * OF THE POSSIBILITY OF SUCH DAMAGE.
605 *
606 * Alternatively, the contents of this file may be used under the terms of
607 * the GNU General Public License ("GPL") version 2 or any later version,
608 * in which case the provisions of the GPL are applicable instead of
609 * the above. If you wish to allow the use of your version of this file
610 * only under the terms of the GPL and not to allow others to use your
611 * version of this file under the BSD license, indicate your decision
612 * by deleting the provisions above and replace them with the notice
613 * and other provisions required by the GPL. If you do not delete the
614 * provisions above, a recipient may use your version of this file under
615 * either the BSD or the GPL.
514 */ 616 */
515 617
516#ifndef ECB_H 618#ifndef ECB_H
517#define ECB_H 619#define ECB_H
518 620
519/* 16 bits major, 16 bits minor */ 621/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003 622#define ECB_VERSION 0x00010006
521 623
522#ifdef _WIN32 624#ifdef _WIN32
523 typedef signed char int8_t; 625 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 626 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 627 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 644 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 645 typedef int32_t intptr_t;
544 #endif 646 #endif
545#else 647#else
546 #include <inttypes.h> 648 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 649 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 650 #define ECB_PTRSIZE 8
549 #else 651 #else
550 #define ECB_PTRSIZE 4 652 #define ECB_PTRSIZE 4
551 #endif 653 #endif
552#endif 654#endif
553 655
656#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
657#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
658
554/* work around x32 idiocy by defining proper macros */ 659/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64 660#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
556 #if _ILP32 661 #if _ILP32
557 #define ECB_AMD64_X32 1 662 #define ECB_AMD64_X32 1
558 #else 663 #else
559 #define ECB_AMD64 1 664 #define ECB_AMD64 1
560 #endif 665 #endif
… …
565 * causing enormous grief in return for some better fake benchmark numbers. 670 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so. 671 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have 672 * we try to detect these and simply assume they are not gcc - if they have
568 * an issue with that they should have done it right in the first place. 673 * an issue with that they should have done it right in the first place.
569 */ 674 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 675#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0 676 #define ECB_GCC_VERSION(major,minor) 0
573 #else 677#else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 678 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif 679#endif
576#endif
577 680
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 681#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
579#define ECB_C99 (__STDC_VERSION__ >= 199901L) 682
580#define ECB_C11 (__STDC_VERSION__ >= 201112L) 683#if __clang__ && defined __has_builtin
684 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
685#else
686 #define ECB_CLANG_BUILTIN(x) 0
687#endif
688
689#if __clang__ && defined __has_extension
690 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
691#else
692 #define ECB_CLANG_EXTENSION(x) 0
693#endif
694
581#define ECB_CPP (__cplusplus+0) 695#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L) 696#define ECB_CPP11 (__cplusplus >= 201103L)
697#define ECB_CPP14 (__cplusplus >= 201402L)
698#define ECB_CPP17 (__cplusplus >= 201703L)
699
700#if ECB_CPP
701 #define ECB_C 0
702 #define ECB_STDC_VERSION 0
703#else
704 #define ECB_C 1
705 #define ECB_STDC_VERSION __STDC_VERSION__
706#endif
707
708#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
709#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
710#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
583 711
584#if ECB_CPP 712#if ECB_CPP
585 #define ECB_EXTERN_C extern "C" 713 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 714 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END } 715 #define ECB_EXTERN_C_END }
… …
602 730
603#if ECB_NO_SMP 731#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0) 732 #define ECB_MEMORY_FENCE do { } while (0)
605#endif 733#endif
606 734
735/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
736#if __xlC__ && ECB_CPP
737 #include <builtins.h>
738#endif
739
740#if 1400 <= _MSC_VER
741 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
742#endif
743
607#ifndef ECB_MEMORY_FENCE 744#ifndef ECB_MEMORY_FENCE
608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 745 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
746 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
609 #if __i386 || __i386__ 747 #if __i386 || __i386__
610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 748 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 749 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 750 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 751 #elif ECB_GCC_AMD64
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 752 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 753 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 754 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 755 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 756 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
757 #elif defined __ARM_ARCH_2__ \
758 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
759 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
760 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
761 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
762 || defined __ARM_ARCH_5TEJ__
763 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 764 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 765 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
766 || defined __ARM_ARCH_6T2__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 767 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 768 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 769 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 770 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__ 771 #elif __aarch64__
772 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
773 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 774 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 775 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 776 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__ 777 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 778 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
651 799
652#ifndef ECB_MEMORY_FENCE 800#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(4,7) 801 #if ECB_GCC_VERSION(4,7)
654 /* see comment below (stdatomic.h) about the C11 memory model. */ 802 /* see comment below (stdatomic.h) about the C11 memory model. */
655 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 803 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
804 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
805 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
806 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
656 807
657 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 808 #elif ECB_CLANG_EXTENSION(c_atomic)
658 * without risking compile time errors with other compilers. We *could*
659 * define our own ecb_clang_has_feature, but I just can't be bothered to work
660 * around this shit time and again.
661 * #elif defined __clang && __has_feature (cxx_atomic)
662 * // see comment below (stdatomic.h) about the C11 memory model. 809 /* see comment below (stdatomic.h) about the C11 memory model. */
663 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 810 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
664 */ 811 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
812 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
813 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
665 814
666 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 815 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
667 #define ECB_MEMORY_FENCE __sync_synchronize () 816 #define ECB_MEMORY_FENCE __sync_synchronize ()
817 #elif _MSC_VER >= 1500 /* VC++ 2008 */
818 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
819 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
820 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
821 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
822 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
668 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 823 #elif _MSC_VER >= 1400 /* VC++ 2005 */
669 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 824 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
670 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 825 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
671 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 826 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
672 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 827 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
673 #elif defined _WIN32 828 #elif defined _WIN32
674 #include <WinNT.h> 829 #include <WinNT.h>
675 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 830 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
676 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 831 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
677 #include <mbarrier.h> 832 #include <mbarrier.h>
678 #define ECB_MEMORY_FENCE __machine_rw_barrier () 833 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
679 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 834 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
680 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 835 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
836 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
681 #elif __xlC__ 837 #elif __xlC__
682 #define ECB_MEMORY_FENCE __sync () 838 #define ECB_MEMORY_FENCE __sync ()
683 #endif 839 #endif
684#endif 840#endif
685 841
686#ifndef ECB_MEMORY_FENCE 842#ifndef ECB_MEMORY_FENCE
687 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 843 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
688 /* we assume that these memory fences work on all variables/all memory accesses, */ 844 /* we assume that these memory fences work on all variables/all memory accesses, */
689 /* not just C11 atomics and atomic accesses */ 845 /* not just C11 atomics and atomic accesses */
690 #include <stdatomic.h> 846 #include <stdatomic.h>
691 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
692 /* any fence other than seq_cst, which isn't very efficient for us. */
693 /* Why that is, we don't know - either the C11 memory model is quite useless */
694 /* for most usages, or gcc and clang have a bug */
695 /* I *currently* lean towards the latter, and inefficiently implement */
696 /* all three of ecb's fences as a seq_cst fence */
697 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 847 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
848 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
849 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
698 #endif 850 #endif
699#endif 851#endif
700 852
701#ifndef ECB_MEMORY_FENCE 853#ifndef ECB_MEMORY_FENCE
702 #if !ECB_AVOID_PTHREADS 854 #if !ECB_AVOID_PTHREADS
… …
722 874
723#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 875#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
724 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 876 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
725#endif 877#endif
726 878
879#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
880 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
881#endif
882
727/*****************************************************************************/ 883/*****************************************************************************/
728 884
729#if __cplusplus 885#if ECB_CPP
730 #define ecb_inline static inline 886 #define ecb_inline static inline
731#elif ECB_GCC_VERSION(2,5) 887#elif ECB_GCC_VERSION(2,5)
732 #define ecb_inline static __inline__ 888 #define ecb_inline static __inline__
733#elif ECB_C99 889#elif ECB_C99
734 #define ecb_inline static inline 890 #define ecb_inline static inline
… …
748 904
749#define ECB_CONCAT_(a, b) a ## b 905#define ECB_CONCAT_(a, b) a ## b
750#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 906#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
751#define ECB_STRINGIFY_(a) # a 907#define ECB_STRINGIFY_(a) # a
752#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 908#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
909#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
753 910
754#define ecb_function_ ecb_inline 911#define ecb_function_ ecb_inline
755 912
756#if ECB_GCC_VERSION(3,1) 913#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
757 #define ecb_attribute(attrlist) __attribute__(attrlist) 914 #define ecb_attribute(attrlist) __attribute__ (attrlist)
915#else
916 #define ecb_attribute(attrlist)
917#endif
918
919#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
758 #define ecb_is_constant(expr) __builtin_constant_p (expr) 920 #define ecb_is_constant(expr) __builtin_constant_p (expr)
921#else
922 /* possible C11 impl for integral types
923 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
924 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
925
926 #define ecb_is_constant(expr) 0
927#endif
928
929#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
759 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 930 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
931#else
932 #define ecb_expect(expr,value) (expr)
933#endif
934
935#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
760 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 936 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
761#else 937#else
762 #define ecb_attribute(attrlist)
763 #define ecb_is_constant(expr) 0
764 #define ecb_expect(expr,value) (expr)
765 #define ecb_prefetch(addr,rw,locality) 938 #define ecb_prefetch(addr,rw,locality)
766#endif 939#endif
767 940
768/* no emulation for ecb_decltype */ 941/* no emulation for ecb_decltype */
769#if ECB_GCC_VERSION(4,5) 942#if ECB_CPP11
943 // older implementations might have problems with decltype(x)::type, work around it
944 template<class T> struct ecb_decltype_t { typedef T type; };
770 #define ecb_decltype(x) __decltype(x) 945 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
771#elif ECB_GCC_VERSION(3,0) 946#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
772 #define ecb_decltype(x) __typeof(x) 947 #define ecb_decltype(x) __typeof__ (x)
773#endif 948#endif
774 949
950#if _MSC_VER >= 1300
951 #define ecb_deprecated __declspec (deprecated)
952#else
953 #define ecb_deprecated ecb_attribute ((__deprecated__))
954#endif
955
956#if _MSC_VER >= 1500
957 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
958#elif ECB_GCC_VERSION(4,5)
959 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
960#else
961 #define ecb_deprecated_message(msg) ecb_deprecated
962#endif
963
964#if _MSC_VER >= 1400
965 #define ecb_noinline __declspec (noinline)
966#else
775#define ecb_noinline ecb_attribute ((__noinline__)) 967 #define ecb_noinline ecb_attribute ((__noinline__))
968#endif
969
776#define ecb_unused ecb_attribute ((__unused__)) 970#define ecb_unused ecb_attribute ((__unused__))
777#define ecb_const ecb_attribute ((__const__)) 971#define ecb_const ecb_attribute ((__const__))
778#define ecb_pure ecb_attribute ((__pure__)) 972#define ecb_pure ecb_attribute ((__pure__))
779 973
780#if ECB_C11 974#if ECB_C11 || __IBMC_NORETURN
975 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
781 #define ecb_noreturn _Noreturn 976 #define ecb_noreturn _Noreturn
977#elif ECB_CPP11
978 #define ecb_noreturn [[noreturn]]
979#elif _MSC_VER >= 1200
980 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
981 #define ecb_noreturn __declspec (noreturn)
782#else 982#else
783 #define ecb_noreturn ecb_attribute ((__noreturn__)) 983 #define ecb_noreturn ecb_attribute ((__noreturn__))
784#endif 984#endif
785 985
786#if ECB_GCC_VERSION(4,3) 986#if ECB_GCC_VERSION(4,3)
… …
801/* for compatibility to the rest of the world */ 1001/* for compatibility to the rest of the world */
802#define ecb_likely(expr) ecb_expect_true (expr) 1002#define ecb_likely(expr) ecb_expect_true (expr)
803#define ecb_unlikely(expr) ecb_expect_false (expr) 1003#define ecb_unlikely(expr) ecb_expect_false (expr)
804 1004
805/* count trailing zero bits and count # of one bits */ 1005/* count trailing zero bits and count # of one bits */
806#if ECB_GCC_VERSION(3,4) 1006#if ECB_GCC_VERSION(3,4) \
1007 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
1008 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
1009 && ECB_CLANG_BUILTIN(__builtin_popcount))
807 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 1010 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
808 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 1011 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
809 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 1012 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
810 #define ecb_ctz32(x) __builtin_ctz (x) 1013 #define ecb_ctz32(x) __builtin_ctz (x)
811 #define ecb_ctz64(x) __builtin_ctzll (x) 1014 #define ecb_ctz64(x) __builtin_ctzll (x)
812 #define ecb_popcount32(x) __builtin_popcount (x) 1015 #define ecb_popcount32(x) __builtin_popcount (x)
813 /* no popcountll */ 1016 /* no popcountll */
814#else 1017#else
815 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1018 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
816 ecb_function_ int 1019 ecb_function_ ecb_const int
817 ecb_ctz32 (uint32_t x) 1020 ecb_ctz32 (uint32_t x)
818 { 1021 {
1022#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1023 unsigned long r;
1024 _BitScanForward (&r, x);
1025 return (int)r;
1026#else
819 int r = 0; 1027 int r = 0;
820 1028
821 x &= ~x + 1; /* this isolates the lowest bit */ 1029 x &= ~x + 1; /* this isolates the lowest bit */
822 1030
823#if ECB_branchless_on_i386 1031#if ECB_branchless_on_i386
… …
833 if (x & 0xff00ff00) r += 8; 1041 if (x & 0xff00ff00) r += 8;
834 if (x & 0xffff0000) r += 16; 1042 if (x & 0xffff0000) r += 16;
835#endif 1043#endif
836 1044
837 return r; 1045 return r;
1046#endif
838 } 1047 }
839 1048
840 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1049 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
841 ecb_function_ int 1050 ecb_function_ ecb_const int
842 ecb_ctz64 (uint64_t x) 1051 ecb_ctz64 (uint64_t x)
843 { 1052 {
1053#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1054 unsigned long r;
1055 _BitScanForward64 (&r, x);
1056 return (int)r;
1057#else
844 int shift = x & 0xffffffffU ? 0 : 32; 1058 int shift = x & 0xffffffff ? 0 : 32;
845 return ecb_ctz32 (x >> shift) + shift; 1059 return ecb_ctz32 (x >> shift) + shift;
1060#endif
846 } 1061 }
847 1062
848 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1063 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
849 ecb_function_ int 1064 ecb_function_ ecb_const int
850 ecb_popcount32 (uint32_t x) 1065 ecb_popcount32 (uint32_t x)
851 { 1066 {
852 x -= (x >> 1) & 0x55555555; 1067 x -= (x >> 1) & 0x55555555;
853 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1068 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
854 x = ((x >> 4) + x) & 0x0f0f0f0f; 1069 x = ((x >> 4) + x) & 0x0f0f0f0f;
855 x *= 0x01010101; 1070 x *= 0x01010101;
856 1071
857 return x >> 24; 1072 return x >> 24;
858 } 1073 }
859 1074
860 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1075 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
861 ecb_function_ int ecb_ld32 (uint32_t x) 1076 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
862 { 1077 {
1078#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1079 unsigned long r;
1080 _BitScanReverse (&r, x);
1081 return (int)r;
1082#else
863 int r = 0; 1083 int r = 0;
864 1084
865 if (x >> 16) { x >>= 16; r += 16; } 1085 if (x >> 16) { x >>= 16; r += 16; }
866 if (x >> 8) { x >>= 8; r += 8; } 1086 if (x >> 8) { x >>= 8; r += 8; }
867 if (x >> 4) { x >>= 4; r += 4; } 1087 if (x >> 4) { x >>= 4; r += 4; }
868 if (x >> 2) { x >>= 2; r += 2; } 1088 if (x >> 2) { x >>= 2; r += 2; }
869 if (x >> 1) { r += 1; } 1089 if (x >> 1) { r += 1; }
870 1090
871 return r; 1091 return r;
1092#endif
872 } 1093 }
873 1094
874 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1095 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
875 ecb_function_ int ecb_ld64 (uint64_t x) 1096 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
876 { 1097 {
1098#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1099 unsigned long r;
1100 _BitScanReverse64 (&r, x);
1101 return (int)r;
1102#else
877 int r = 0; 1103 int r = 0;
878 1104
879 if (x >> 32) { x >>= 32; r += 32; } 1105 if (x >> 32) { x >>= 32; r += 32; }
880 1106
881 return r + ecb_ld32 (x); 1107 return r + ecb_ld32 (x);
1108#endif
882 } 1109 }
883#endif 1110#endif
884 1111
885ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1112ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
886ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1113ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
887ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1114ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
888ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1115ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
889 1116
890ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1117ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
891ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1118ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
892{ 1119{
893 return ( (x * 0x0802U & 0x22110U) 1120 return ( (x * 0x0802U & 0x22110U)
894 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1121 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
895} 1122}
896 1123
897ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1124ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
898ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1125ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
899{ 1126{
900 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1127 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
901 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1128 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
902 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1129 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
903 x = ( x >> 8 ) | ( x << 8); 1130 x = ( x >> 8 ) | ( x << 8);
904 1131
905 return x; 1132 return x;
906} 1133}
907 1134
908ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1135ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
909ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1136ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
910{ 1137{
911 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1138 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
912 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1139 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
913 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1140 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
914 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1141 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
917 return x; 1144 return x;
918} 1145}
919 1146
920/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1147/* popcount64 is only available on 64 bit cpus as gcc builtin */
921/* so for this version we are lazy */ 1148/* so for this version we are lazy */
922ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1149ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
923ecb_function_ int 1150ecb_function_ ecb_const int
924ecb_popcount64 (uint64_t x) 1151ecb_popcount64 (uint64_t x)
925{ 1152{
926 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1153 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
927} 1154}
928 1155
929ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1156ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
930ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1157ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
931ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1158ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
932ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1159ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
933ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1160ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
934ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1161ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
935ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1162ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
936ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1163ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
937 1164
938ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1165ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
939ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1166ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
940ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1167ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
941ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1168ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
942ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1169ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
943ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1170ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
944ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1171ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
945ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1172ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
946 1173
947#if ECB_GCC_VERSION(4,3) 1174#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1175 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1176 #define ecb_bswap16(x) __builtin_bswap16 (x)
1177 #else
948 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1178 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1179 #endif
949 #define ecb_bswap32(x) __builtin_bswap32 (x) 1180 #define ecb_bswap32(x) __builtin_bswap32 (x)
950 #define ecb_bswap64(x) __builtin_bswap64 (x) 1181 #define ecb_bswap64(x) __builtin_bswap64 (x)
1182#elif _MSC_VER
1183 #include <stdlib.h>
1184 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1185 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1186 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
951#else 1187#else
952 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1188 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
953 ecb_function_ uint16_t 1189 ecb_function_ ecb_const uint16_t
954 ecb_bswap16 (uint16_t x) 1190 ecb_bswap16 (uint16_t x)
955 { 1191 {
956 return ecb_rotl16 (x, 8); 1192 return ecb_rotl16 (x, 8);
957 } 1193 }
958 1194
959 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1195 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
960 ecb_function_ uint32_t 1196 ecb_function_ ecb_const uint32_t
961 ecb_bswap32 (uint32_t x) 1197 ecb_bswap32 (uint32_t x)
962 { 1198 {
963 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1199 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
964 } 1200 }
965 1201
966 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1202 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
967 ecb_function_ uint64_t 1203 ecb_function_ ecb_const uint64_t
968 ecb_bswap64 (uint64_t x) 1204 ecb_bswap64 (uint64_t x)
969 { 1205 {
970 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1206 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
971 } 1207 }
972#endif 1208#endif
973 1209
974#if ECB_GCC_VERSION(4,5) 1210#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
975 #define ecb_unreachable() __builtin_unreachable () 1211 #define ecb_unreachable() __builtin_unreachable ()
976#else 1212#else
977 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1213 /* this seems to work fine, but gcc always emits a warning for it :/ */
978 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1214 ecb_inline ecb_noreturn void ecb_unreachable (void);
979 ecb_inline void ecb_unreachable (void) { } 1215 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
980#endif 1216#endif
981 1217
982/* try to tell the compiler that some condition is definitely true */ 1218/* try to tell the compiler that some condition is definitely true */
983#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1219#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
984 1220
985ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1221ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
986ecb_inline unsigned char 1222ecb_inline ecb_const uint32_t
987ecb_byteorder_helper (void) 1223ecb_byteorder_helper (void)
988{ 1224{
989 /* the union code still generates code under pressure in gcc, */ 1225 /* the union code still generates code under pressure in gcc, */
990 /* but less than using pointers, and always seems to */ 1226 /* but less than using pointers, and always seems to */
991 /* successfully return a constant. */ 1227 /* successfully return a constant. */
992 /* the reason why we have this horrible preprocessor mess */ 1228 /* the reason why we have this horrible preprocessor mess */
993 /* is to avoid it in all cases, at least on common architectures */ 1229 /* is to avoid it in all cases, at least on common architectures */
994 /* or when using a recent enough gcc version (>= 4.6) */ 1230 /* or when using a recent enough gcc version (>= 4.6) */
995#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
996 return 0x44;
997#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1231#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1232 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1233 #define ECB_LITTLE_ENDIAN 1
998 return 0x44; 1234 return 0x44332211;
999#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1235#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1236 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1237 #define ECB_BIG_ENDIAN 1
1000 return 0x11; 1238 return 0x11223344;
1001#else 1239#else
1002 union 1240 union
1003 { 1241 {
1242 uint8_t c[4];
1004 uint32_t i; 1243 uint32_t u;
1005 uint8_t c;
1006 } u = { 0x11223344 }; 1244 } u = { 0x11, 0x22, 0x33, 0x44 };
1007 return u.c; 1245 return u.u;
1008#endif 1246#endif
1009} 1247}
1010 1248
1011ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1249ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1012ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1250ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1013ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1251ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1014ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1252ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1015 1253
1016#if ECB_GCC_VERSION(3,0) || ECB_C99 1254#if ECB_GCC_VERSION(3,0) || ECB_C99
1017 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1255 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1018#else 1256#else
1019 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1257 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1020#endif 1258#endif
1021 1259
1022#if __cplusplus 1260#if ECB_CPP
1023 template<typename T> 1261 template<typename T>
1024 static inline T ecb_div_rd (T val, T div) 1262 static inline T ecb_div_rd (T val, T div)
1025 { 1263 {
1026 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1264 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1027 } 1265 }
… …
1044 } 1282 }
1045#else 1283#else
1046 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1284 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1047#endif 1285#endif
1048 1286
1287ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1288ecb_function_ ecb_const uint32_t
1289ecb_binary16_to_binary32 (uint32_t x)
1290{
1291 unsigned int s = (x & 0x8000) << (31 - 15);
1292 int e = (x >> 10) & 0x001f;
1293 unsigned int m = x & 0x03ff;
1294
1295 if (ecb_expect_false (e == 31))
1296 /* infinity or NaN */
1297 e = 255 - (127 - 15);
1298 else if (ecb_expect_false (!e))
1299 {
1300 if (ecb_expect_true (!m))
1301 /* zero, handled by code below by forcing e to 0 */
1302 e = 0 - (127 - 15);
1303 else
1304 {
1305 /* subnormal, renormalise */
1306 unsigned int s = 10 - ecb_ld32 (m);
1307
1308 m = (m << s) & 0x3ff; /* mask implicit bit */
1309 e -= s - 1;
1310 }
1311 }
1312
1313 /* e and m now are normalised, or zero, (or inf or nan) */
1314 e += 127 - 15;
1315
1316 return s | (e << 23) | (m << (23 - 10));
1317}
1318
1319ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1320ecb_function_ ecb_const uint16_t
1321ecb_binary32_to_binary16 (uint32_t x)
1322{
1323 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1324 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1325 unsigned int m = x & 0x007fffff;
1326
1327 x &= 0x7fffffff;
1328
1329 /* if it's within range of binary16 normals, use fast path */
1330 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1331 {
1332 /* mantissa round-to-even */
1333 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1334
1335 /* handle overflow */
1336 if (ecb_expect_false (m >= 0x00800000))
1337 {
1338 m >>= 1;
1339 e += 1;
1340 }
1341
1342 return s | (e << 10) | (m >> (23 - 10));
1343 }
1344
1345 /* handle large numbers and infinity */
1346 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1347 return s | 0x7c00;
1348
1349 /* handle zero, subnormals and small numbers */
1350 if (ecb_expect_true (x < 0x38800000))
1351 {
1352 /* zero */
1353 if (ecb_expect_true (!x))
1354 return s;
1355
1356 /* handle subnormals */
1357
1358 /* too small, will be zero */
1359 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1360 return s;
1361
1362 m |= 0x00800000; /* make implicit bit explicit */
1363
1364 /* very tricky - we need to round to the nearest e (+10) bit value */
1365 {
1366 unsigned int bits = 14 - e;
1367 unsigned int half = (1 << (bits - 1)) - 1;
1368 unsigned int even = (m >> bits) & 1;
1369
1370 /* if this overflows, we will end up with a normalised number */
1371 m = (m + half + even) >> bits;
1372 }
1373
1374 return s | m;
1375 }
1376
1377 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1378 m >>= 13;
1379
1380 return s | 0x7c00 | m | !m;
1381}
1382
1049/*******************************************************************************/ 1383/*******************************************************************************/
1050/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1384/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1051 1385
1052/* basically, everything uses "ieee pure-endian" floating point numbers */ 1386/* basically, everything uses "ieee pure-endian" floating point numbers */
1053/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1387/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1054#if 0 \ 1388#if 0 \
1055 || __i386 || __i386__ \ 1389 || __i386 || __i386__ \
1056 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1390 || ECB_GCC_AMD64 \
1057 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1391 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1058 || defined __arm__ && defined __ARM_EABI__ \
1059 || defined __s390__ || defined __s390x__ \ 1392 || defined __s390__ || defined __s390x__ \
1060 || defined __mips__ \ 1393 || defined __mips__ \
1061 || defined __alpha__ \ 1394 || defined __alpha__ \
1062 || defined __hppa__ \ 1395 || defined __hppa__ \
1063 || defined __ia64__ \ 1396 || defined __ia64__ \
1064 || defined __m68k__ \ 1397 || defined __m68k__ \
1065 || defined __m88k__ \ 1398 || defined __m88k__ \
1066 || defined __sh__ \ 1399 || defined __sh__ \
1067 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1400 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1401 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1402 || defined __aarch64__
1068 #define ECB_STDFP 1 1403 #define ECB_STDFP 1
1069 #include <string.h> /* for memcpy */ 1404 #include <string.h> /* for memcpy */
1070#else 1405#else
1071 #define ECB_STDFP 0 1406 #define ECB_STDFP 0
1072#endif 1407#endif
1073 1408
1074#ifndef ECB_NO_LIBM 1409#ifndef ECB_NO_LIBM
1075 1410
1076 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ 1411 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1077 1412
1413 /* only the oldest of old doesn't have this one. solaris. */
1414 #ifdef INFINITY
1415 #define ECB_INFINITY INFINITY
1416 #else
1417 #define ECB_INFINITY HUGE_VAL
1418 #endif
1419
1078 #ifdef NEN 1420 #ifdef NAN
1079 #define ECB_NAN NAN 1421 #define ECB_NAN NAN
1080 #else 1422 #else
1081 #define ECB_NAN INFINITY 1423 #define ECB_NAN ECB_INFINITY
1082 #endif 1424 #endif
1083 1425
1084 /* converts an ieee half/binary16 to a float */ 1426 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1085 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1427 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1086 ecb_function_ float 1428 #define ecb_frexpf(x,e) frexpf ((x), (e))
1087 ecb_binary16_to_float (uint16_t x) 1429 #else
1088 { 1430 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1089 int e = (x >> 10) & 0x1f; 1431 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1090 int m = x & 0x3ff; 1432 #endif
1091 float r;
1092
1093 if (!e ) r = ldexpf (m , -24);
1094 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1095 else if (m ) r = ECB_NAN;
1096 else r = INFINITY;
1097
1098 return x & 0x8000 ? -r : r;
1099 }
1100 1433
1101 /* convert a float to ieee single/binary32 */ 1434 /* convert a float to ieee single/binary32 */
1102 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1435 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1103 ecb_function_ uint32_t 1436 ecb_function_ ecb_const uint32_t
1104 ecb_float_to_binary32 (float x) 1437 ecb_float_to_binary32 (float x)
1105 { 1438 {
1106 uint32_t r; 1439 uint32_t r;
1107 1440
1108 #if ECB_STDFP 1441 #if ECB_STDFP
… …
1115 if (x == 0e0f ) return 0x00000000U; 1448 if (x == 0e0f ) return 0x00000000U;
1116 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1449 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1117 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1450 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1118 if (x != x ) return 0x7fbfffffU; 1451 if (x != x ) return 0x7fbfffffU;
1119 1452
1120 m = frexpf (x, &e) * 0x1000000U; 1453 m = ecb_frexpf (x, &e) * 0x1000000U;
1121 1454
1122 r = m & 0x80000000U; 1455 r = m & 0x80000000U;
1123 1456
1124 if (r) 1457 if (r)
1125 m = -m; 1458 m = -m;
… …
1137 1470
1138 return r; 1471 return r;
1139 } 1472 }
1140 1473
1141 /* converts an ieee single/binary32 to a float */ 1474 /* converts an ieee single/binary32 to a float */
1142 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1475 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1143 ecb_function_ float 1476 ecb_function_ ecb_const float
1144 ecb_binary32_to_float (uint32_t x) 1477 ecb_binary32_to_float (uint32_t x)
1145 { 1478 {
1146 float r; 1479 float r;
1147 1480
1148 #if ECB_STDFP 1481 #if ECB_STDFP
… …
1158 x |= 0x800000U; 1491 x |= 0x800000U;
1159 else 1492 else
1160 e = 1; 1493 e = 1;
1161 1494
1162 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1495 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1163 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1496 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1164 1497
1165 r = neg ? -r : r; 1498 r = neg ? -r : r;
1166 #endif 1499 #endif
1167 1500
1168 return r; 1501 return r;
1169 } 1502 }
1170 1503
1171 /* convert a double to ieee double/binary64 */ 1504 /* convert a double to ieee double/binary64 */
1172 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1505 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1173 ecb_function_ uint64_t 1506 ecb_function_ ecb_const uint64_t
1174 ecb_double_to_binary64 (double x) 1507 ecb_double_to_binary64 (double x)
1175 { 1508 {
1176 uint64_t r; 1509 uint64_t r;
1177 1510
1178 #if ECB_STDFP 1511 #if ECB_STDFP
… …
1207 1540
1208 return r; 1541 return r;
1209 } 1542 }
1210 1543
1211 /* converts an ieee double/binary64 to a double */ 1544 /* converts an ieee double/binary64 to a double */
1212 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1545 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1213 ecb_function_ double 1546 ecb_function_ ecb_const double
1214 ecb_binary64_to_double (uint64_t x) 1547 ecb_binary64_to_double (uint64_t x)
1215 { 1548 {
1216 double r; 1549 double r;
1217 1550
1218 #if ECB_STDFP 1551 #if ECB_STDFP
… …
1236 #endif 1569 #endif
1237 1570
1238 return r; 1571 return r;
1239 } 1572 }
1240 1573
1574 /* convert a float to ieee half/binary16 */
1575 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1576 ecb_function_ ecb_const uint16_t
1577 ecb_float_to_binary16 (float x)
1578 {
1579 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1580 }
1581
1582 /* convert an ieee half/binary16 to float */
1583 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1584 ecb_function_ ecb_const float
1585 ecb_binary16_to_float (uint16_t x)
1586 {
1587 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1588 }
1589
1241#endif 1590#endif
1242 1591
1243#endif 1592#endif
1244 1593
1245/* ECB.H END */ 1594/* ECB.H END */
1246 1595
1247#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1596#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1248/* if your architecture doesn't need memory fences, e.g. because it is 1597/* if your architecture doesn't need memory fences, e.g. because it is
1249 * single-cpu/core, or if you use libev in a project that doesn't use libev 1598 * single-cpu/core, or if you use libev in a project that doesn't use libev
1250 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1599 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1251 * libev, in which cases the memory fences become nops. 1600 * libev, in which cases the memory fences become nops.
1252 * alternatively, you can remove this #error and link against libpthread, 1601 * alternatively, you can remove this #error and link against libpthread,
1253 * which will then provide the memory fences. 1602 * which will then provide the memory fences.
1254 */ 1603 */
1255# error "memory fences not defined for your architecture, please report" 1604# error "memory fences not defined for your architecture, please report"
… …
1259# define ECB_MEMORY_FENCE do { } while (0) 1608# define ECB_MEMORY_FENCE do { } while (0)
1260# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1609# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1261# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1610# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1262#endif 1611#endif
1263 1612
1264#define expect_false(cond) ecb_expect_false (cond)
1265#define expect_true(cond) ecb_expect_true (cond)
1266#define noinline ecb_noinline
1267
1268#define inline_size ecb_inline 1613#define inline_size ecb_inline
1269 1614
1270#if EV_FEATURE_CODE 1615#if EV_FEATURE_CODE
1271# define inline_speed ecb_inline 1616# define inline_speed ecb_inline
1272#else 1617#else
1273# define inline_speed static noinline 1618# define inline_speed ecb_noinline static
1274#endif 1619#endif
1620
1621/*****************************************************************************/
1622/* raw syscall wrappers */
1623
1624#if EV_NEED_SYSCALL
1625
1626#include <sys/syscall.h>
1627
1628/*
1629 * define some syscall wrappers for common architectures
1630 * this is mostly for nice looks during debugging, not performance.
1631 * our syscalls return < 0, not == -1, on error. which is good
1632 * enough for linux aio.
1633 * TODO: arm is also common nowadays, maybe even mips and x86
1634 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1635 */
1636#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1637 /* the costly errno access probably kills this for size optimisation */
1638
1639 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1640 ({ \
1641 long res; \
1642 register unsigned long r6 __asm__ ("r9" ); \
1643 register unsigned long r5 __asm__ ("r8" ); \
1644 register unsigned long r4 __asm__ ("r10"); \
1645 register unsigned long r3 __asm__ ("rdx"); \
1646 register unsigned long r2 __asm__ ("rsi"); \
1647 register unsigned long r1 __asm__ ("rdi"); \
1648 if (narg >= 6) r6 = (unsigned long)(arg6); \
1649 if (narg >= 5) r5 = (unsigned long)(arg5); \
1650 if (narg >= 4) r4 = (unsigned long)(arg4); \
1651 if (narg >= 3) r3 = (unsigned long)(arg3); \
1652 if (narg >= 2) r2 = (unsigned long)(arg2); \
1653 if (narg >= 1) r1 = (unsigned long)(arg1); \
1654 __asm__ __volatile__ ( \
1655 "syscall\n\t" \
1656 : "=a" (res) \
1657 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1658 : "cc", "r11", "cx", "memory"); \
1659 errno = -res; \
1660 res; \
1661 })
1662
1663#endif
1664
1665#ifdef ev_syscall
1666 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1667 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1668 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1669 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1670 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1671 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1672 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1673#else
1674 #define ev_syscall0(nr) syscall (nr)
1675 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1676 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1677 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1678 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1679 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1680 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1681#endif
1682
1683#endif
1684
1685/*****************************************************************************/
1275 1686
1276#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1687#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1277 1688
1278#if EV_MINPRI == EV_MAXPRI 1689#if EV_MINPRI == EV_MAXPRI
1279# define ABSPRI(w) (((W)w), 0) 1690# define ABSPRI(w) (((W)w), 0)
1280#else 1691#else
1281# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1692# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1282#endif 1693#endif
1283 1694
1284#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1695#define EMPTY /* required for microsofts broken pseudo-c compiler */
1285#define EMPTY2(a,b) /* used to suppress some warnings */
1286 1696
1287typedef ev_watcher *W; 1697typedef ev_watcher *W;
1288typedef ev_watcher_list *WL; 1698typedef ev_watcher_list *WL;
1289typedef ev_watcher_time *WT; 1699typedef ev_watcher_time *WT;
1290 1700
… …
1315# include "ev_win32.c" 1725# include "ev_win32.c"
1316#endif 1726#endif
1317 1727
1318/*****************************************************************************/ 1728/*****************************************************************************/
1319 1729
1730#if EV_USE_LINUXAIO
1731# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1732#endif
1733
1320/* define a suitable floor function (only used by periodics atm) */ 1734/* define a suitable floor function (only used by periodics atm) */
1321 1735
1322#if EV_USE_FLOOR 1736#if EV_USE_FLOOR
1323# include <math.h> 1737# include <math.h>
1324# define ev_floor(v) floor (v) 1738# define ev_floor(v) floor (v)
1325#else 1739#else
1326 1740
1327#include <float.h> 1741#include <float.h>
1328 1742
1329/* a floor() replacement function, should be independent of ev_tstamp type */ 1743/* a floor() replacement function, should be independent of ev_tstamp type */
1744ecb_noinline
1330static ev_tstamp noinline 1745static ev_tstamp
1331ev_floor (ev_tstamp v) 1746ev_floor (ev_tstamp v)
1332{ 1747{
1333 /* the choice of shift factor is not terribly important */ 1748 /* the choice of shift factor is not terribly important */
1334#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1749#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1335 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1750 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1336#else 1751#else
1337 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1752 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1338#endif 1753#endif
1339 1754
1755 /* special treatment for negative arguments */
1756 if (ecb_expect_false (v < 0.))
1757 {
1758 ev_tstamp f = -ev_floor (-v);
1759
1760 return f - (f == v ? 0 : 1);
1761 }
1762
1340 /* argument too large for an unsigned long? */ 1763 /* argument too large for an unsigned long? then reduce it */
1341 if (expect_false (v >= shift)) 1764 if (ecb_expect_false (v >= shift))
1342 { 1765 {
1343 ev_tstamp f; 1766 ev_tstamp f;
1344 1767
1345 if (v == v - 1.) 1768 if (v == v - 1.)
1346 return v; /* very large number */ 1769 return v; /* very large numbers are assumed to be integer */
1347 1770
1348 f = shift * ev_floor (v * (1. / shift)); 1771 f = shift * ev_floor (v * (1. / shift));
1349 return f + ev_floor (v - f); 1772 return f + ev_floor (v - f);
1350 } 1773 }
1351 1774
1352 /* special treatment for negative args? */
1353 if (expect_false (v < 0.))
1354 {
1355 ev_tstamp f = -ev_floor (-v);
1356
1357 return f - (f == v ? 0 : 1);
1358 }
1359
1360 /* fits into an unsigned long */ 1775 /* fits into an unsigned long */
1361 return (unsigned long)v; 1776 return (unsigned long)v;
1362} 1777}
1363 1778
1364#endif 1779#endif
… …
1367 1782
1368#ifdef __linux 1783#ifdef __linux
1369# include <sys/utsname.h> 1784# include <sys/utsname.h>
1370#endif 1785#endif
1371 1786
1372static unsigned int noinline ecb_cold 1787ecb_noinline ecb_cold
1788static unsigned int
1373ev_linux_version (void) 1789ev_linux_version (void)
1374{ 1790{
1375#ifdef __linux 1791#ifdef __linux
1376 unsigned int v = 0; 1792 unsigned int v = 0;
1377 struct utsname buf; 1793 struct utsname buf;
… …
1406} 1822}
1407 1823
1408/*****************************************************************************/ 1824/*****************************************************************************/
1409 1825
1410#if EV_AVOID_STDIO 1826#if EV_AVOID_STDIO
1411static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1412ev_printerr (const char *msg) 1829ev_printerr (const char *msg)
1413{ 1830{
1414 write (STDERR_FILENO, msg, strlen (msg)); 1831 write (STDERR_FILENO, msg, strlen (msg));
1415} 1832}
1416#endif 1833#endif
1417 1834
1418static void (*syserr_cb)(const char *msg) EV_THROW; 1835static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1419 1836
1420void ecb_cold 1837ecb_cold
1838void
1421ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1839ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1422{ 1840{
1423 syserr_cb = cb; 1841 syserr_cb = cb;
1424} 1842}
1425 1843
1426static void noinline ecb_cold 1844ecb_noinline ecb_cold
1845static void
1427ev_syserr (const char *msg) 1846ev_syserr (const char *msg)
1428{ 1847{
1429 if (!msg) 1848 if (!msg)
1430 msg = "(libev) system error"; 1849 msg = "(libev) system error";
1431 1850
… …
1444 abort (); 1863 abort ();
1445 } 1864 }
1446} 1865}
1447 1866
1448static void * 1867static void *
1449ev_realloc_emul (void *ptr, long size) EV_THROW 1868ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1450{ 1869{
1451 /* some systems, notably openbsd and darwin, fail to properly 1870 /* some systems, notably openbsd and darwin, fail to properly
1452 * implement realloc (x, 0) (as required by both ansi c-89 and 1871 * implement realloc (x, 0) (as required by both ansi c-89 and
1453 * the single unix specification, so work around them here. 1872 * the single unix specification, so work around them here.
1454 * recently, also (at least) fedora and debian started breaking it, 1873 * recently, also (at least) fedora and debian started breaking it,
… …
1460 1879
1461 free (ptr); 1880 free (ptr);
1462 return 0; 1881 return 0;
1463} 1882}
1464 1883
1465static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1884static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1466 1885
1467void ecb_cold 1886ecb_cold
1887void
1468ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1888ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1469{ 1889{
1470 alloc = cb; 1890 alloc = cb;
1471} 1891}
1472 1892
1473inline_speed void * 1893inline_speed void *
… …
1500typedef struct 1920typedef struct
1501{ 1921{
1502 WL head; 1922 WL head;
1503 unsigned char events; /* the events watched for */ 1923 unsigned char events; /* the events watched for */
1504 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1924 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1505 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1925 unsigned char emask; /* some backends store the actual kernel mask in here */
1506 unsigned char unused; 1926 unsigned char eflags; /* flags field for use by backends */
1507#if EV_USE_EPOLL 1927#if EV_USE_EPOLL
1508 unsigned int egen; /* generation counter to counter epoll bugs */ 1928 unsigned int egen; /* generation counter to counter epoll bugs */
1509#endif 1929#endif
1510#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1930#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1511 SOCKET handle; 1931 SOCKET handle;
… …
1565 static struct ev_loop default_loop_struct; 1985 static struct ev_loop default_loop_struct;
1566 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 1986 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1567 1987
1568#else 1988#else
1569 1989
1570 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 1990 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1571 #define VAR(name,decl) static decl; 1991 #define VAR(name,decl) static decl;
1572 #include "ev_vars.h" 1992 #include "ev_vars.h"
1573 #undef VAR 1993 #undef VAR
1574 1994
1575 static int ev_default_loop_ptr; 1995 static int ev_default_loop_ptr;
1576 1996
1577#endif 1997#endif
1578 1998
1579#if EV_FEATURE_API 1999#if EV_FEATURE_API
1580# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2000# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1581# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2001# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1582# define EV_INVOKE_PENDING invoke_cb (EV_A) 2002# define EV_INVOKE_PENDING invoke_cb (EV_A)
1583#else 2003#else
1584# define EV_RELEASE_CB (void)0 2004# define EV_RELEASE_CB (void)0
1585# define EV_ACQUIRE_CB (void)0 2005# define EV_ACQUIRE_CB (void)0
1586# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2006# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1590 2010
1591/*****************************************************************************/ 2011/*****************************************************************************/
1592 2012
1593#ifndef EV_HAVE_EV_TIME 2013#ifndef EV_HAVE_EV_TIME
1594ev_tstamp 2014ev_tstamp
1595ev_time (void) EV_THROW 2015ev_time (void) EV_NOEXCEPT
1596{ 2016{
1597#if EV_USE_REALTIME 2017#if EV_USE_REALTIME
1598 if (expect_true (have_realtime)) 2018 if (ecb_expect_true (have_realtime))
1599 { 2019 {
1600 struct timespec ts; 2020 struct timespec ts;
1601 clock_gettime (CLOCK_REALTIME, &ts); 2021 clock_gettime (CLOCK_REALTIME, &ts);
1602 return ts.tv_sec + ts.tv_nsec * 1e-9; 2022 return EV_TS_GET (ts);
1603 } 2023 }
1604#endif 2024#endif
1605 2025
2026 {
1606 struct timeval tv; 2027 struct timeval tv;
1607 gettimeofday (&tv, 0); 2028 gettimeofday (&tv, 0);
1608 return tv.tv_sec + tv.tv_usec * 1e-6; 2029 return EV_TV_GET (tv);
2030 }
1609} 2031}
1610#endif 2032#endif
1611 2033
1612inline_size ev_tstamp 2034inline_size ev_tstamp
1613get_clock (void) 2035get_clock (void)
1614{ 2036{
1615#if EV_USE_MONOTONIC 2037#if EV_USE_MONOTONIC
1616 if (expect_true (have_monotonic)) 2038 if (ecb_expect_true (have_monotonic))
1617 { 2039 {
1618 struct timespec ts; 2040 struct timespec ts;
1619 clock_gettime (CLOCK_MONOTONIC, &ts); 2041 clock_gettime (CLOCK_MONOTONIC, &ts);
1620 return ts.tv_sec + ts.tv_nsec * 1e-9; 2042 return EV_TS_GET (ts);
1621 } 2043 }
1622#endif 2044#endif
1623 2045
1624 return ev_time (); 2046 return ev_time ();
1625} 2047}
1626 2048
1627#if EV_MULTIPLICITY 2049#if EV_MULTIPLICITY
1628ev_tstamp 2050ev_tstamp
1629ev_now (EV_P) EV_THROW 2051ev_now (EV_P) EV_NOEXCEPT
1630{ 2052{
1631 return ev_rt_now; 2053 return ev_rt_now;
1632} 2054}
1633#endif 2055#endif
1634 2056
1635void 2057void
1636ev_sleep (ev_tstamp delay) EV_THROW 2058ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1637{ 2059{
1638 if (delay > 0.) 2060 if (delay > EV_TS_CONST (0.))
1639 { 2061 {
1640#if EV_USE_NANOSLEEP 2062#if EV_USE_NANOSLEEP
1641 struct timespec ts; 2063 struct timespec ts;
1642 2064
1643 EV_TS_SET (ts, delay); 2065 EV_TS_SET (ts, delay);
1644 nanosleep (&ts, 0); 2066 nanosleep (&ts, 0);
1645#elif defined _WIN32 2067#elif defined _WIN32
2068 /* maybe this should round up, as ms is very low resolution */
2069 /* compared to select (µs) or nanosleep (ns) */
1646 Sleep ((unsigned long)(delay * 1e3)); 2070 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1647#else 2071#else
1648 struct timeval tv; 2072 struct timeval tv;
1649 2073
1650 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2074 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1651 /* something not guaranteed by newer posix versions, but guaranteed */ 2075 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1681 } 2105 }
1682 2106
1683 return ncur; 2107 return ncur;
1684} 2108}
1685 2109
1686static void * noinline ecb_cold 2110ecb_noinline ecb_cold
2111static void *
1687array_realloc (int elem, void *base, int *cur, int cnt) 2112array_realloc (int elem, void *base, int *cur, int cnt)
1688{ 2113{
1689 *cur = array_nextsize (elem, *cur, cnt); 2114 *cur = array_nextsize (elem, *cur, cnt);
1690 return ev_realloc (base, elem * *cur); 2115 return ev_realloc (base, elem * *cur);
1691} 2116}
1692 2117
2118#define array_needsize_noinit(base,offset,count)
2119
1693#define array_init_zero(base,count) \ 2120#define array_needsize_zerofill(base,offset,count) \
1694 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2121 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1695 2122
1696#define array_needsize(type,base,cur,cnt,init) \ 2123#define array_needsize(type,base,cur,cnt,init) \
1697 if (expect_false ((cnt) > (cur))) \ 2124 if (ecb_expect_false ((cnt) > (cur))) \
1698 { \ 2125 { \
1699 int ecb_unused ocur_ = (cur); \ 2126 ecb_unused int ocur_ = (cur); \
1700 (base) = (type *)array_realloc \ 2127 (base) = (type *)array_realloc \
1701 (sizeof (type), (base), &(cur), (cnt)); \ 2128 (sizeof (type), (base), &(cur), (cnt)); \
1702 init ((base) + (ocur_), (cur) - ocur_); \ 2129 init ((base), ocur_, ((cur) - ocur_)); \
1703 } 2130 }
1704 2131
1705#if 0 2132#if 0
1706#define array_slim(type,stem) \ 2133#define array_slim(type,stem) \
1707 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2134 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1716 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2143 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1717 2144
1718/*****************************************************************************/ 2145/*****************************************************************************/
1719 2146
1720/* dummy callback for pending events */ 2147/* dummy callback for pending events */
1721static void noinline 2148ecb_noinline
2149static void
1722pendingcb (EV_P_ ev_prepare *w, int revents) 2150pendingcb (EV_P_ ev_prepare *w, int revents)
1723{ 2151{
1724} 2152}
1725 2153
1726void noinline 2154ecb_noinline
2155void
1727ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2156ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1728{ 2157{
1729 W w_ = (W)w; 2158 W w_ = (W)w;
1730 int pri = ABSPRI (w_); 2159 int pri = ABSPRI (w_);
1731 2160
1732 if (expect_false (w_->pending)) 2161 if (ecb_expect_false (w_->pending))
1733 pendings [pri][w_->pending - 1].events |= revents; 2162 pendings [pri][w_->pending - 1].events |= revents;
1734 else 2163 else
1735 { 2164 {
1736 w_->pending = ++pendingcnt [pri]; 2165 w_->pending = ++pendingcnt [pri];
1737 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2166 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1738 pendings [pri][w_->pending - 1].w = w_; 2167 pendings [pri][w_->pending - 1].w = w_;
1739 pendings [pri][w_->pending - 1].events = revents; 2168 pendings [pri][w_->pending - 1].events = revents;
1740 } 2169 }
1741 2170
1742 pendingpri = NUMPRI - 1; 2171 pendingpri = NUMPRI - 1;
1743} 2172}
1744 2173
1745inline_speed void 2174inline_speed void
1746feed_reverse (EV_P_ W w) 2175feed_reverse (EV_P_ W w)
1747{ 2176{
1748 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2177 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1749 rfeeds [rfeedcnt++] = w; 2178 rfeeds [rfeedcnt++] = w;
1750} 2179}
1751 2180
1752inline_size void 2181inline_size void
1753feed_reverse_done (EV_P_ int revents) 2182feed_reverse_done (EV_P_ int revents)
… …
1788inline_speed void 2217inline_speed void
1789fd_event (EV_P_ int fd, int revents) 2218fd_event (EV_P_ int fd, int revents)
1790{ 2219{
1791 ANFD *anfd = anfds + fd; 2220 ANFD *anfd = anfds + fd;
1792 2221
1793 if (expect_true (!anfd->reify)) 2222 if (ecb_expect_true (!anfd->reify))
1794 fd_event_nocheck (EV_A_ fd, revents); 2223 fd_event_nocheck (EV_A_ fd, revents);
1795} 2224}
1796 2225
1797void 2226void
1798ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2227ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1799{ 2228{
1800 if (fd >= 0 && fd < anfdmax) 2229 if (fd >= 0 && fd < anfdmax)
1801 fd_event_nocheck (EV_A_ fd, revents); 2230 fd_event_nocheck (EV_A_ fd, revents);
1802} 2231}
1803 2232
… …
1840 ev_io *w; 2269 ev_io *w;
1841 2270
1842 unsigned char o_events = anfd->events; 2271 unsigned char o_events = anfd->events;
1843 unsigned char o_reify = anfd->reify; 2272 unsigned char o_reify = anfd->reify;
1844 2273
1845 anfd->reify = 0; 2274 anfd->reify = 0;
1846 2275
1847 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2276 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1848 { 2277 {
1849 anfd->events = 0; 2278 anfd->events = 0;
1850 2279
1851 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2280 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1852 anfd->events |= (unsigned char)w->events; 2281 anfd->events |= (unsigned char)w->events;
… …
1861 2290
1862 fdchangecnt = 0; 2291 fdchangecnt = 0;
1863} 2292}
1864 2293
1865/* something about the given fd changed */ 2294/* something about the given fd changed */
1866inline_size void 2295inline_size
2296void
1867fd_change (EV_P_ int fd, int flags) 2297fd_change (EV_P_ int fd, int flags)
1868{ 2298{
1869 unsigned char reify = anfds [fd].reify; 2299 unsigned char reify = anfds [fd].reify;
1870 anfds [fd].reify |= flags; 2300 anfds [fd].reify |= flags;
1871 2301
1872 if (expect_true (!reify)) 2302 if (ecb_expect_true (!reify))
1873 { 2303 {
1874 ++fdchangecnt; 2304 ++fdchangecnt;
1875 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2305 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1876 fdchanges [fdchangecnt - 1] = fd; 2306 fdchanges [fdchangecnt - 1] = fd;
1877 } 2307 }
1878} 2308}
1879 2309
1880/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2310/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1881inline_speed void ecb_cold 2311inline_speed ecb_cold void
1882fd_kill (EV_P_ int fd) 2312fd_kill (EV_P_ int fd)
1883{ 2313{
1884 ev_io *w; 2314 ev_io *w;
1885 2315
1886 while ((w = (ev_io *)anfds [fd].head)) 2316 while ((w = (ev_io *)anfds [fd].head))
… …
1889 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2319 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1890 } 2320 }
1891} 2321}
1892 2322
1893/* check whether the given fd is actually valid, for error recovery */ 2323/* check whether the given fd is actually valid, for error recovery */
1894inline_size int ecb_cold 2324inline_size ecb_cold int
1895fd_valid (int fd) 2325fd_valid (int fd)
1896{ 2326{
1897#ifdef _WIN32 2327#ifdef _WIN32
1898 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2328 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1899#else 2329#else
1900 return fcntl (fd, F_GETFD) != -1; 2330 return fcntl (fd, F_GETFD) != -1;
1901#endif 2331#endif
1902} 2332}
1903 2333
1904/* called on EBADF to verify fds */ 2334/* called on EBADF to verify fds */
1905static void noinline ecb_cold 2335ecb_noinline ecb_cold
2336static void
1906fd_ebadf (EV_P) 2337fd_ebadf (EV_P)
1907{ 2338{
1908 int fd; 2339 int fd;
1909 2340
1910 for (fd = 0; fd < anfdmax; ++fd) 2341 for (fd = 0; fd < anfdmax; ++fd)
… …
1912 if (!fd_valid (fd) && errno == EBADF) 2343 if (!fd_valid (fd) && errno == EBADF)
1913 fd_kill (EV_A_ fd); 2344 fd_kill (EV_A_ fd);
1914} 2345}
1915 2346
1916/* called on ENOMEM in select/poll to kill some fds and retry */ 2347/* called on ENOMEM in select/poll to kill some fds and retry */
1917static void noinline ecb_cold 2348ecb_noinline ecb_cold
2349static void
1918fd_enomem (EV_P) 2350fd_enomem (EV_P)
1919{ 2351{
1920 int fd; 2352 int fd;
1921 2353
1922 for (fd = anfdmax; fd--; ) 2354 for (fd = anfdmax; fd--; )
… …
1926 break; 2358 break;
1927 } 2359 }
1928} 2360}
1929 2361
1930/* usually called after fork if backend needs to re-arm all fds from scratch */ 2362/* usually called after fork if backend needs to re-arm all fds from scratch */
1931static void noinline 2363ecb_noinline
2364static void
1932fd_rearm_all (EV_P) 2365fd_rearm_all (EV_P)
1933{ 2366{
1934 int fd; 2367 int fd;
1935 2368
1936 for (fd = 0; fd < anfdmax; ++fd) 2369 for (fd = 0; fd < anfdmax; ++fd)
… …
1989 ev_tstamp minat; 2422 ev_tstamp minat;
1990 ANHE *minpos; 2423 ANHE *minpos;
1991 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2424 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1992 2425
1993 /* find minimum child */ 2426 /* find minimum child */
1994 if (expect_true (pos + DHEAP - 1 < E)) 2427 if (ecb_expect_true (pos + DHEAP - 1 < E))
1995 { 2428 {
1996 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2429 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1997 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2430 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1998 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2431 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1999 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2432 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2000 } 2433 }
2001 else if (pos < E) 2434 else if (pos < E)
2002 { 2435 {
2003 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2436 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2004 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2437 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2005 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2438 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2006 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2439 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2007 } 2440 }
2008 else 2441 else
2009 break; 2442 break;
2010 2443
2011 if (ANHE_at (he) <= minat) 2444 if (ANHE_at (he) <= minat)
… …
2019 2452
2020 heap [k] = he; 2453 heap [k] = he;
2021 ev_active (ANHE_w (he)) = k; 2454 ev_active (ANHE_w (he)) = k;
2022} 2455}
2023 2456
2024#else /* 4HEAP */ 2457#else /* not 4HEAP */
2025 2458
2026#define HEAP0 1 2459#define HEAP0 1
2027#define HPARENT(k) ((k) >> 1) 2460#define HPARENT(k) ((k) >> 1)
2028#define UPHEAP_DONE(p,k) (!(p)) 2461#define UPHEAP_DONE(p,k) (!(p))
2029 2462
… …
2117 2550
2118/*****************************************************************************/ 2551/*****************************************************************************/
2119 2552
2120#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2121 2554
2122static void noinline ecb_cold 2555ecb_noinline ecb_cold
2556static void
2123evpipe_init (EV_P) 2557evpipe_init (EV_P)
2124{ 2558{
2125 if (!ev_is_active (&pipe_w)) 2559 if (!ev_is_active (&pipe_w))
2126 { 2560 {
2127 int fds [2]; 2561 int fds [2];
… …
2167inline_speed void 2601inline_speed void
2168evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2602evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2169{ 2603{
2170 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2604 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2171 2605
2172 if (expect_true (*flag)) 2606 if (ecb_expect_true (*flag))
2173 return; 2607 return;
2174 2608
2175 *flag = 1; 2609 *flag = 1;
2176 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2610 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2177 2611
… …
2198#endif 2632#endif
2199 { 2633 {
2200#ifdef _WIN32 2634#ifdef _WIN32
2201 WSABUF buf; 2635 WSABUF buf;
2202 DWORD sent; 2636 DWORD sent;
2203 buf.buf = &buf; 2637 buf.buf = (char *)&buf;
2204 buf.len = 1; 2638 buf.len = 1;
2205 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2639 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2206#else 2640#else
2207 write (evpipe [1], &(evpipe [1]), 1); 2641 write (evpipe [1], &(evpipe [1]), 1);
2208#endif 2642#endif
… …
2254 sig_pending = 0; 2688 sig_pending = 0;
2255 2689
2256 ECB_MEMORY_FENCE; 2690 ECB_MEMORY_FENCE;
2257 2691
2258 for (i = EV_NSIG - 1; i--; ) 2692 for (i = EV_NSIG - 1; i--; )
2259 if (expect_false (signals [i].pending)) 2693 if (ecb_expect_false (signals [i].pending))
2260 ev_feed_signal_event (EV_A_ i + 1); 2694 ev_feed_signal_event (EV_A_ i + 1);
2261 } 2695 }
2262#endif 2696#endif
2263 2697
2264#if EV_ASYNC_ENABLE 2698#if EV_ASYNC_ENABLE
… …
2280} 2714}
2281 2715
2282/*****************************************************************************/ 2716/*****************************************************************************/
2283 2717
2284void 2718void
2285ev_feed_signal (int signum) EV_THROW 2719ev_feed_signal (int signum) EV_NOEXCEPT
2286{ 2720{
2287#if EV_MULTIPLICITY 2721#if EV_MULTIPLICITY
2288 EV_P; 2722 EV_P;
2289 ECB_MEMORY_FENCE_ACQUIRE; 2723 ECB_MEMORY_FENCE_ACQUIRE;
2290 EV_A = signals [signum - 1].loop; 2724 EV_A = signals [signum - 1].loop;
… …
2305#endif 2739#endif
2306 2740
2307 ev_feed_signal (signum); 2741 ev_feed_signal (signum);
2308} 2742}
2309 2743
2310void noinline 2744ecb_noinline
2745void
2311ev_feed_signal_event (EV_P_ int signum) EV_THROW 2746ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2312{ 2747{
2313 WL w; 2748 WL w;
2314 2749
2315 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2750 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2316 return; 2751 return;
2317 2752
2318 --signum; 2753 --signum;
2319 2754
2320#if EV_MULTIPLICITY 2755#if EV_MULTIPLICITY
2321 /* it is permissible to try to feed a signal to the wrong loop */ 2756 /* it is permissible to try to feed a signal to the wrong loop */
2322 /* or, likely more useful, feeding a signal nobody is waiting for */ 2757 /* or, likely more useful, feeding a signal nobody is waiting for */
2323 2758
2324 if (expect_false (signals [signum].loop != EV_A)) 2759 if (ecb_expect_false (signals [signum].loop != EV_A))
2325 return; 2760 return;
2326#endif 2761#endif
2327 2762
2328 signals [signum].pending = 0; 2763 signals [signum].pending = 0;
2329 ECB_MEMORY_FENCE_RELEASE; 2764 ECB_MEMORY_FENCE_RELEASE;
… …
2425# include "ev_kqueue.c" 2860# include "ev_kqueue.c"
2426#endif 2861#endif
2427#if EV_USE_EPOLL 2862#if EV_USE_EPOLL
2428# include "ev_epoll.c" 2863# include "ev_epoll.c"
2429#endif 2864#endif
2865#if EV_USE_LINUXAIO
2866# include "ev_linuxaio.c"
2867#endif
2868#if EV_USE_IOURING
2869# include "ev_iouring.c"
2870#endif
2430#if EV_USE_POLL 2871#if EV_USE_POLL
2431# include "ev_poll.c" 2872# include "ev_poll.c"
2432#endif 2873#endif
2433#if EV_USE_SELECT 2874#if EV_USE_SELECT
2434# include "ev_select.c" 2875# include "ev_select.c"
2435#endif 2876#endif
2436 2877
2437int ecb_cold 2878ecb_cold int
2438ev_version_major (void) EV_THROW 2879ev_version_major (void) EV_NOEXCEPT
2439{ 2880{
2440 return EV_VERSION_MAJOR; 2881 return EV_VERSION_MAJOR;
2441} 2882}
2442 2883
2443int ecb_cold 2884ecb_cold int
2444ev_version_minor (void) EV_THROW 2885ev_version_minor (void) EV_NOEXCEPT
2445{ 2886{
2446 return EV_VERSION_MINOR; 2887 return EV_VERSION_MINOR;
2447} 2888}
2448 2889
2449/* return true if we are running with elevated privileges and should ignore env variables */ 2890/* return true if we are running with elevated privileges and should ignore env variables */
2450int inline_size ecb_cold 2891inline_size ecb_cold int
2451enable_secure (void) 2892enable_secure (void)
2452{ 2893{
2453#ifdef _WIN32 2894#ifdef _WIN32
2454 return 0; 2895 return 0;
2455#else 2896#else
2456 return getuid () != geteuid () 2897 return getuid () != geteuid ()
2457 || getgid () != getegid (); 2898 || getgid () != getegid ();
2458#endif 2899#endif
2459} 2900}
2460 2901
2461unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2462ev_supported_backends (void) EV_THROW 2904ev_supported_backends (void) EV_NOEXCEPT
2463{ 2905{
2464 unsigned int flags = 0; 2906 unsigned int flags = 0;
2465 2907
2466 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2908 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2467 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2909 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2468 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2910 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2911 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2912 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2469 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2913 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2470 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2914 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2471 2915
2472 return flags; 2916 return flags;
2473} 2917}
2474 2918
2475unsigned int ecb_cold 2919ecb_cold
2920unsigned int
2476ev_recommended_backends (void) EV_THROW 2921ev_recommended_backends (void) EV_NOEXCEPT
2477{ 2922{
2478 unsigned int flags = ev_supported_backends (); 2923 unsigned int flags = ev_supported_backends ();
2479 2924
2480#ifndef __NetBSD__ 2925#ifndef __NetBSD__
2481 /* kqueue is borked on everything but netbsd apparently */ 2926 /* kqueue is borked on everything but netbsd apparently */
… …
2489#endif 2934#endif
2490#ifdef __FreeBSD__ 2935#ifdef __FreeBSD__
2491 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2936 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2492#endif 2937#endif
2493 2938
2939 /* TODO: linuxaio is very experimental */
2940#if !EV_RECOMMEND_LINUXAIO
2941 flags &= ~EVBACKEND_LINUXAIO;
2942#endif
2943 /* TODO: linuxaio is super experimental */
2944#if !EV_RECOMMEND_IOURING
2945 flags &= ~EVBACKEND_IOURING;
2946#endif
2947
2494 return flags; 2948 return flags;
2495} 2949}
2496 2950
2497unsigned int ecb_cold 2951ecb_cold
2952unsigned int
2498ev_embeddable_backends (void) EV_THROW 2953ev_embeddable_backends (void) EV_NOEXCEPT
2499{ 2954{
2500 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2955 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2501 2956
2502 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2957 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2503 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2958 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2504 flags &= ~EVBACKEND_EPOLL; 2959 flags &= ~EVBACKEND_EPOLL;
2505 2960
2961 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2962
2963 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2964 * because our backend_fd is the epoll fd we need as fallback.
2965 * if the kernel ever is fixed, this might change...
2966 */
2967
2506 return flags; 2968 return flags;
2507} 2969}
2508 2970
2509unsigned int 2971unsigned int
2510ev_backend (EV_P) EV_THROW 2972ev_backend (EV_P) EV_NOEXCEPT
2511{ 2973{
2512 return backend; 2974 return backend;
2513} 2975}
2514 2976
2515#if EV_FEATURE_API 2977#if EV_FEATURE_API
2516unsigned int 2978unsigned int
2517ev_iteration (EV_P) EV_THROW 2979ev_iteration (EV_P) EV_NOEXCEPT
2518{ 2980{
2519 return loop_count; 2981 return loop_count;
2520} 2982}
2521 2983
2522unsigned int 2984unsigned int
2523ev_depth (EV_P) EV_THROW 2985ev_depth (EV_P) EV_NOEXCEPT
2524{ 2986{
2525 return loop_depth; 2987 return loop_depth;
2526} 2988}
2527 2989
2528void 2990void
2529ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2991ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2530{ 2992{
2531 io_blocktime = interval; 2993 io_blocktime = interval;
2532} 2994}
2533 2995
2534void 2996void
2535ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2997ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2536{ 2998{
2537 timeout_blocktime = interval; 2999 timeout_blocktime = interval;
2538} 3000}
2539 3001
2540void 3002void
2541ev_set_userdata (EV_P_ void *data) EV_THROW 3003ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2542{ 3004{
2543 userdata = data; 3005 userdata = data;
2544} 3006}
2545 3007
2546void * 3008void *
2547ev_userdata (EV_P) EV_THROW 3009ev_userdata (EV_P) EV_NOEXCEPT
2548{ 3010{
2549 return userdata; 3011 return userdata;
2550} 3012}
2551 3013
2552void 3014void
2553ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 3015ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2554{ 3016{
2555 invoke_cb = invoke_pending_cb; 3017 invoke_cb = invoke_pending_cb;
2556} 3018}
2557 3019
2558void 3020void
2559ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3021ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2560{ 3022{
2561 release_cb = release; 3023 release_cb = release;
2562 acquire_cb = acquire; 3024 acquire_cb = acquire;
2563} 3025}
2564#endif 3026#endif
2565 3027
2566/* initialise a loop structure, must be zero-initialised */ 3028/* initialise a loop structure, must be zero-initialised */
2567static void noinline ecb_cold 3029ecb_noinline ecb_cold
3030static void
2568loop_init (EV_P_ unsigned int flags) EV_THROW 3031loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2569{ 3032{
2570 if (!backend) 3033 if (!backend)
2571 { 3034 {
2572 origflags = flags; 3035 origflags = flags;
2573 3036
… …
2631 3094
2632 if (!(flags & EVBACKEND_MASK)) 3095 if (!(flags & EVBACKEND_MASK))
2633 flags |= ev_recommended_backends (); 3096 flags |= ev_recommended_backends ();
2634 3097
2635#if EV_USE_IOCP 3098#if EV_USE_IOCP
2636 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3099 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2637#endif 3100#endif
2638#if EV_USE_PORT 3101#if EV_USE_PORT
2639 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3102 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2640#endif 3103#endif
2641#if EV_USE_KQUEUE 3104#if EV_USE_KQUEUE
2642 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3105 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3106#endif
3107#if EV_USE_IOURING
3108 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3109#endif
3110#if EV_USE_LINUXAIO
3111 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2643#endif 3112#endif
2644#if EV_USE_EPOLL 3113#if EV_USE_EPOLL
2645 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3114 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2646#endif 3115#endif
2647#if EV_USE_POLL 3116#if EV_USE_POLL
2648 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3117 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2649#endif 3118#endif
2650#if EV_USE_SELECT 3119#if EV_USE_SELECT
2651 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3120 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2652#endif 3121#endif
2653 3122
2654 ev_prepare_init (&pending_w, pendingcb); 3123 ev_prepare_init (&pending_w, pendingcb);
2655 3124
2656#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3125#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2659#endif 3128#endif
2660 } 3129 }
2661} 3130}
2662 3131
2663/* free up a loop structure */ 3132/* free up a loop structure */
2664void ecb_cold 3133ecb_cold
3134void
2665ev_loop_destroy (EV_P) 3135ev_loop_destroy (EV_P)
2666{ 3136{
2667 int i; 3137 int i;
2668 3138
2669#if EV_MULTIPLICITY 3139#if EV_MULTIPLICITY
… …
2672 return; 3142 return;
2673#endif 3143#endif
2674 3144
2675#if EV_CLEANUP_ENABLE 3145#if EV_CLEANUP_ENABLE
2676 /* queue cleanup watchers (and execute them) */ 3146 /* queue cleanup watchers (and execute them) */
2677 if (expect_false (cleanupcnt)) 3147 if (ecb_expect_false (cleanupcnt))
2678 { 3148 {
2679 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3149 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2680 EV_INVOKE_PENDING; 3150 EV_INVOKE_PENDING;
2681 } 3151 }
2682#endif 3152#endif
… …
2710 3180
2711 if (backend_fd >= 0) 3181 if (backend_fd >= 0)
2712 close (backend_fd); 3182 close (backend_fd);
2713 3183
2714#if EV_USE_IOCP 3184#if EV_USE_IOCP
2715 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3185 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2716#endif 3186#endif
2717#if EV_USE_PORT 3187#if EV_USE_PORT
2718 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3188 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2719#endif 3189#endif
2720#if EV_USE_KQUEUE 3190#if EV_USE_KQUEUE
2721 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3191 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3192#endif
3193#if EV_USE_IOURING
3194 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3195#endif
3196#if EV_USE_LINUXAIO
3197 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2722#endif 3198#endif
2723#if EV_USE_EPOLL 3199#if EV_USE_EPOLL
2724 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3200 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2725#endif 3201#endif
2726#if EV_USE_POLL 3202#if EV_USE_POLL
2727 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3203 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2728#endif 3204#endif
2729#if EV_USE_SELECT 3205#if EV_USE_SELECT
2730 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3206 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2731#endif 3207#endif
2732 3208
2733 for (i = NUMPRI; i--; ) 3209 for (i = NUMPRI; i--; )
2734 { 3210 {
2735 array_free (pending, [i]); 3211 array_free (pending, [i]);
… …
2777 3253
2778inline_size void 3254inline_size void
2779loop_fork (EV_P) 3255loop_fork (EV_P)
2780{ 3256{
2781#if EV_USE_PORT 3257#if EV_USE_PORT
2782 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3258 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2783#endif 3259#endif
2784#if EV_USE_KQUEUE 3260#if EV_USE_KQUEUE
2785 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3261 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3262#endif
3263#if EV_USE_IOURING
3264 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3265#endif
3266#if EV_USE_LINUXAIO
3267 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2786#endif 3268#endif
2787#if EV_USE_EPOLL 3269#if EV_USE_EPOLL
2788 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3270 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2789#endif 3271#endif
2790#if EV_USE_INOTIFY 3272#if EV_USE_INOTIFY
2791 infy_fork (EV_A); 3273 infy_fork (EV_A);
2792#endif 3274#endif
2793 3275
2794#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3276#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2795 if (ev_is_active (&pipe_w)) 3277 if (ev_is_active (&pipe_w) && postfork != 2)
2796 { 3278 {
2797 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3279 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2798 3280
2799 ev_ref (EV_A); 3281 ev_ref (EV_A);
2800 ev_io_stop (EV_A_ &pipe_w); 3282 ev_io_stop (EV_A_ &pipe_w);
… …
2811 postfork = 0; 3293 postfork = 0;
2812} 3294}
2813 3295
2814#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
2815 3297
3298ecb_cold
2816struct ev_loop * ecb_cold 3299struct ev_loop *
2817ev_loop_new (unsigned int flags) EV_THROW 3300ev_loop_new (unsigned int flags) EV_NOEXCEPT
2818{ 3301{
2819 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3302 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2820 3303
2821 memset (EV_A, 0, sizeof (struct ev_loop)); 3304 memset (EV_A, 0, sizeof (struct ev_loop));
2822 loop_init (EV_A_ flags); 3305 loop_init (EV_A_ flags);
… …
2829} 3312}
2830 3313
2831#endif /* multiplicity */ 3314#endif /* multiplicity */
2832 3315
2833#if EV_VERIFY 3316#if EV_VERIFY
2834static void noinline ecb_cold 3317ecb_noinline ecb_cold
3318static void
2835verify_watcher (EV_P_ W w) 3319verify_watcher (EV_P_ W w)
2836{ 3320{
2837 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3321 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2838 3322
2839 if (w->pending) 3323 if (w->pending)
2840 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3324 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2841} 3325}
2842 3326
2843static void noinline ecb_cold 3327ecb_noinline ecb_cold
3328static void
2844verify_heap (EV_P_ ANHE *heap, int N) 3329verify_heap (EV_P_ ANHE *heap, int N)
2845{ 3330{
2846 int i; 3331 int i;
2847 3332
2848 for (i = HEAP0; i < N + HEAP0; ++i) 3333 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2853 3338
2854 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3339 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2855 } 3340 }
2856} 3341}
2857 3342
2858static void noinline ecb_cold 3343ecb_noinline ecb_cold
3344static void
2859array_verify (EV_P_ W *ws, int cnt) 3345array_verify (EV_P_ W *ws, int cnt)
2860{ 3346{
2861 while (cnt--) 3347 while (cnt--)
2862 { 3348 {
2863 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3349 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2866} 3352}
2867#endif 3353#endif
2868 3354
2869#if EV_FEATURE_API 3355#if EV_FEATURE_API
2870void ecb_cold 3356void ecb_cold
2871ev_verify (EV_P) EV_THROW 3357ev_verify (EV_P) EV_NOEXCEPT
2872{ 3358{
2873#if EV_VERIFY 3359#if EV_VERIFY
2874 int i; 3360 int i;
2875 WL w, w2; 3361 WL w, w2;
2876 3362
… …
2952#endif 3438#endif
2953} 3439}
2954#endif 3440#endif
2955 3441
2956#if EV_MULTIPLICITY 3442#if EV_MULTIPLICITY
3443ecb_cold
2957struct ev_loop * ecb_cold 3444struct ev_loop *
2958#else 3445#else
2959int 3446int
2960#endif 3447#endif
2961ev_default_loop (unsigned int flags) EV_THROW 3448ev_default_loop (unsigned int flags) EV_NOEXCEPT
2962{ 3449{
2963 if (!ev_default_loop_ptr) 3450 if (!ev_default_loop_ptr)
2964 { 3451 {
2965#if EV_MULTIPLICITY 3452#if EV_MULTIPLICITY
2966 EV_P = ev_default_loop_ptr = &default_loop_struct; 3453 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2985 3472
2986 return ev_default_loop_ptr; 3473 return ev_default_loop_ptr;
2987} 3474}
2988 3475
2989void 3476void
2990ev_loop_fork (EV_P) EV_THROW 3477ev_loop_fork (EV_P) EV_NOEXCEPT
2991{ 3478{
2992 postfork = 1; 3479 postfork = 1;
2993} 3480}
2994 3481
2995/*****************************************************************************/ 3482/*****************************************************************************/
… …
2999{ 3486{
3000 EV_CB_INVOKE ((W)w, revents); 3487 EV_CB_INVOKE ((W)w, revents);
3001} 3488}
3002 3489
3003unsigned int 3490unsigned int
3004ev_pending_count (EV_P) EV_THROW 3491ev_pending_count (EV_P) EV_NOEXCEPT
3005{ 3492{
3006 int pri; 3493 int pri;
3007 unsigned int count = 0; 3494 unsigned int count = 0;
3008 3495
3009 for (pri = NUMPRI; pri--; ) 3496 for (pri = NUMPRI; pri--; )
3010 count += pendingcnt [pri]; 3497 count += pendingcnt [pri];
3011 3498
3012 return count; 3499 return count;
3013} 3500}
3014 3501
3015void noinline 3502ecb_noinline
3503void
3016ev_invoke_pending (EV_P) 3504ev_invoke_pending (EV_P)
3017{ 3505{
3018 pendingpri = NUMPRI; 3506 pendingpri = NUMPRI;
3019 3507
3020 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3508 do
3021 { 3509 {
3022 --pendingpri; 3510 --pendingpri;
3023 3511
3512 /* pendingpri possibly gets modified in the inner loop */
3024 while (pendingcnt [pendingpri]) 3513 while (pendingcnt [pendingpri])
3025 { 3514 {
3026 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3515 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3027 3516
3028 p->w->pending = 0; 3517 p->w->pending = 0;
3029 EV_CB_INVOKE (p->w, p->events); 3518 EV_CB_INVOKE (p->w, p->events);
3030 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
3031 } 3520 }
3032 } 3521 }
3522 while (pendingpri);
3033} 3523}
3034 3524
3035#if EV_IDLE_ENABLE 3525#if EV_IDLE_ENABLE
3036/* make idle watchers pending. this handles the "call-idle */ 3526/* make idle watchers pending. this handles the "call-idle */
3037/* only when higher priorities are idle" logic */ 3527/* only when higher priorities are idle" logic */
3038inline_size void 3528inline_size void
3039idle_reify (EV_P) 3529idle_reify (EV_P)
3040{ 3530{
3041 if (expect_false (idleall)) 3531 if (ecb_expect_false (idleall))
3042 { 3532 {
3043 int pri; 3533 int pri;
3044 3534
3045 for (pri = NUMPRI; pri--; ) 3535 for (pri = NUMPRI; pri--; )
3046 { 3536 {
… …
3076 { 3566 {
3077 ev_at (w) += w->repeat; 3567 ev_at (w) += w->repeat;
3078 if (ev_at (w) < mn_now) 3568 if (ev_at (w) < mn_now)
3079 ev_at (w) = mn_now; 3569 ev_at (w) = mn_now;
3080 3570
3081 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3571 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3082 3572
3083 ANHE_at_cache (timers [HEAP0]); 3573 ANHE_at_cache (timers [HEAP0]);
3084 downheap (timers, timercnt, HEAP0); 3574 downheap (timers, timercnt, HEAP0);
3085 } 3575 }
3086 else 3576 else
… …
3095 } 3585 }
3096} 3586}
3097 3587
3098#if EV_PERIODIC_ENABLE 3588#if EV_PERIODIC_ENABLE
3099 3589
3100static void noinline 3590ecb_noinline
3591static void
3101periodic_recalc (EV_P_ ev_periodic *w) 3592periodic_recalc (EV_P_ ev_periodic *w)
3102{ 3593{
3103 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3594 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3104 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3595 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3105 3596
… …
3107 while (at <= ev_rt_now) 3598 while (at <= ev_rt_now)
3108 { 3599 {
3109 ev_tstamp nat = at + w->interval; 3600 ev_tstamp nat = at + w->interval;
3110 3601
3111 /* when resolution fails us, we use ev_rt_now */ 3602 /* when resolution fails us, we use ev_rt_now */
3112 if (expect_false (nat == at)) 3603 if (ecb_expect_false (nat == at))
3113 { 3604 {
3114 at = ev_rt_now; 3605 at = ev_rt_now;
3115 break; 3606 break;
3116 } 3607 }
3117 3608
… …
3163 } 3654 }
3164} 3655}
3165 3656
3166/* simply recalculate all periodics */ 3657/* simply recalculate all periodics */
3167/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3658/* TODO: maybe ensure that at least one event happens when jumping forward? */
3168static void noinline ecb_cold 3659ecb_noinline ecb_cold
3660static void
3169periodics_reschedule (EV_P) 3661periodics_reschedule (EV_P)
3170{ 3662{
3171 int i; 3663 int i;
3172 3664
3173 /* adjust periodics after time jump */ 3665 /* adjust periodics after time jump */
… …
3186 reheap (periodics, periodiccnt); 3678 reheap (periodics, periodiccnt);
3187} 3679}
3188#endif 3680#endif
3189 3681
3190/* adjust all timers by a given offset */ 3682/* adjust all timers by a given offset */
3191static void noinline ecb_cold 3683ecb_noinline ecb_cold
3684static void
3192timers_reschedule (EV_P_ ev_tstamp adjust) 3685timers_reschedule (EV_P_ ev_tstamp adjust)
3193{ 3686{
3194 int i; 3687 int i;
3195 3688
3196 for (i = 0; i < timercnt; ++i) 3689 for (i = 0; i < timercnt; ++i)
… …
3205/* also detect if there was a timejump, and act accordingly */ 3698/* also detect if there was a timejump, and act accordingly */
3206inline_speed void 3699inline_speed void
3207time_update (EV_P_ ev_tstamp max_block) 3700time_update (EV_P_ ev_tstamp max_block)
3208{ 3701{
3209#if EV_USE_MONOTONIC 3702#if EV_USE_MONOTONIC
3210 if (expect_true (have_monotonic)) 3703 if (ecb_expect_true (have_monotonic))
3211 { 3704 {
3212 int i; 3705 int i;
3213 ev_tstamp odiff = rtmn_diff; 3706 ev_tstamp odiff = rtmn_diff;
3214 3707
3215 mn_now = get_clock (); 3708 mn_now = get_clock ();
3216 3709
3217 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3710 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3218 /* interpolate in the meantime */ 3711 /* interpolate in the meantime */
3219 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3712 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3220 { 3713 {
3221 ev_rt_now = rtmn_diff + mn_now; 3714 ev_rt_now = rtmn_diff + mn_now;
3222 return; 3715 return;
3223 } 3716 }
3224 3717
… …
3238 ev_tstamp diff; 3731 ev_tstamp diff;
3239 rtmn_diff = ev_rt_now - mn_now; 3732 rtmn_diff = ev_rt_now - mn_now;
3240 3733
3241 diff = odiff - rtmn_diff; 3734 diff = odiff - rtmn_diff;
3242 3735
3243 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3736 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3244 return; /* all is well */ 3737 return; /* all is well */
3245 3738
3246 ev_rt_now = ev_time (); 3739 ev_rt_now = ev_time ();
3247 mn_now = get_clock (); 3740 mn_now = get_clock ();
3248 now_floor = mn_now; 3741 now_floor = mn_now;
… …
3257 else 3750 else
3258#endif 3751#endif
3259 { 3752 {
3260 ev_rt_now = ev_time (); 3753 ev_rt_now = ev_time ();
3261 3754
3262 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3755 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3263 { 3756 {
3264 /* adjust timers. this is easy, as the offset is the same for all of them */ 3757 /* adjust timers. this is easy, as the offset is the same for all of them */
3265 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3758 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3266#if EV_PERIODIC_ENABLE 3759#if EV_PERIODIC_ENABLE
3267 periodics_reschedule (EV_A); 3760 periodics_reschedule (EV_A);
… …
3290#if EV_VERIFY >= 2 3783#if EV_VERIFY >= 2
3291 ev_verify (EV_A); 3784 ev_verify (EV_A);
3292#endif 3785#endif
3293 3786
3294#ifndef _WIN32 3787#ifndef _WIN32
3295 if (expect_false (curpid)) /* penalise the forking check even more */ 3788 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3296 if (expect_false (getpid () != curpid)) 3789 if (ecb_expect_false (getpid () != curpid))
3297 { 3790 {
3298 curpid = getpid (); 3791 curpid = getpid ();
3299 postfork = 1; 3792 postfork = 1;
3300 } 3793 }
3301#endif 3794#endif
3302 3795
3303#if EV_FORK_ENABLE 3796#if EV_FORK_ENABLE
3304 /* we might have forked, so queue fork handlers */ 3797 /* we might have forked, so queue fork handlers */
3305 if (expect_false (postfork)) 3798 if (ecb_expect_false (postfork))
3306 if (forkcnt) 3799 if (forkcnt)
3307 { 3800 {
3308 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3801 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3309 EV_INVOKE_PENDING; 3802 EV_INVOKE_PENDING;
3310 } 3803 }
3311#endif 3804#endif
3312 3805
3313#if EV_PREPARE_ENABLE 3806#if EV_PREPARE_ENABLE
3314 /* queue prepare watchers (and execute them) */ 3807 /* queue prepare watchers (and execute them) */
3315 if (expect_false (preparecnt)) 3808 if (ecb_expect_false (preparecnt))
3316 { 3809 {
3317 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3810 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3318 EV_INVOKE_PENDING; 3811 EV_INVOKE_PENDING;
3319 } 3812 }
3320#endif 3813#endif
3321 3814
3322 if (expect_false (loop_done)) 3815 if (ecb_expect_false (loop_done))
3323 break; 3816 break;
3324 3817
3325 /* we might have forked, so reify kernel state if necessary */ 3818 /* we might have forked, so reify kernel state if necessary */
3326 if (expect_false (postfork)) 3819 if (ecb_expect_false (postfork))
3327 loop_fork (EV_A); 3820 loop_fork (EV_A);
3328 3821
3329 /* update fd-related kernel structures */ 3822 /* update fd-related kernel structures */
3330 fd_reify (EV_A); 3823 fd_reify (EV_A);
3331 3824
… …
3336 3829
3337 /* remember old timestamp for io_blocktime calculation */ 3830 /* remember old timestamp for io_blocktime calculation */
3338 ev_tstamp prev_mn_now = mn_now; 3831 ev_tstamp prev_mn_now = mn_now;
3339 3832
3340 /* update time to cancel out callback processing overhead */ 3833 /* update time to cancel out callback processing overhead */
3341 time_update (EV_A_ 1e100); 3834 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3342 3835
3343 /* from now on, we want a pipe-wake-up */ 3836 /* from now on, we want a pipe-wake-up */
3344 pipe_write_wanted = 1; 3837 pipe_write_wanted = 1;
3345 3838
3346 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3839 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3347 3840
3348 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3841 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3349 { 3842 {
3350 waittime = MAX_BLOCKTIME; 3843 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3351 3844
3352 if (timercnt) 3845 if (timercnt)
3353 { 3846 {
3354 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3847 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3355 if (waittime > to) waittime = to; 3848 if (waittime > to) waittime = to;
… …
3362 if (waittime > to) waittime = to; 3855 if (waittime > to) waittime = to;
3363 } 3856 }
3364#endif 3857#endif
3365 3858
3366 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3859 /* don't let timeouts decrease the waittime below timeout_blocktime */
3367 if (expect_false (waittime < timeout_blocktime)) 3860 if (ecb_expect_false (waittime < timeout_blocktime))
3368 waittime = timeout_blocktime; 3861 waittime = timeout_blocktime;
3369 3862
3370 /* at this point, we NEED to wait, so we have to ensure */ 3863 /* at this point, we NEED to wait, so we have to ensure */
3371 /* to pass a minimum nonzero value to the backend */ 3864 /* to pass a minimum nonzero value to the backend */
3372 if (expect_false (waittime < backend_mintime)) 3865 if (ecb_expect_false (waittime < backend_mintime))
3373 waittime = backend_mintime; 3866 waittime = backend_mintime;
3374 3867
3375 /* extra check because io_blocktime is commonly 0 */ 3868 /* extra check because io_blocktime is commonly 0 */
3376 if (expect_false (io_blocktime)) 3869 if (ecb_expect_false (io_blocktime))
3377 { 3870 {
3378 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3871 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3379 3872
3380 if (sleeptime > waittime - backend_mintime) 3873 if (sleeptime > waittime - backend_mintime)
3381 sleeptime = waittime - backend_mintime; 3874 sleeptime = waittime - backend_mintime;
3382 3875
3383 if (expect_true (sleeptime > 0.)) 3876 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3384 { 3877 {
3385 ev_sleep (sleeptime); 3878 ev_sleep (sleeptime);
3386 waittime -= sleeptime; 3879 waittime -= sleeptime;
3387 } 3880 }
3388 } 3881 }
… …
3402 { 3895 {
3403 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3896 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3404 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3897 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3405 } 3898 }
3406 3899
3407
3408 /* update ev_rt_now, do magic */ 3900 /* update ev_rt_now, do magic */
3409 time_update (EV_A_ waittime + sleeptime); 3901 time_update (EV_A_ waittime + sleeptime);
3410 } 3902 }
3411 3903
3412 /* queue pending timers and reschedule them */ 3904 /* queue pending timers and reschedule them */
… …
3420 idle_reify (EV_A); 3912 idle_reify (EV_A);
3421#endif 3913#endif
3422 3914
3423#if EV_CHECK_ENABLE 3915#if EV_CHECK_ENABLE
3424 /* queue check watchers, to be executed first */ 3916 /* queue check watchers, to be executed first */
3425 if (expect_false (checkcnt)) 3917 if (ecb_expect_false (checkcnt))
3426 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3918 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3427#endif 3919#endif
3428 3920
3429 EV_INVOKE_PENDING; 3921 EV_INVOKE_PENDING;
3430 } 3922 }
3431 while (expect_true ( 3923 while (ecb_expect_true (
3432 activecnt 3924 activecnt
3433 && !loop_done 3925 && !loop_done
3434 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3926 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3435 )); 3927 ));
3436 3928
… …
3443 3935
3444 return activecnt; 3936 return activecnt;
3445} 3937}
3446 3938
3447void 3939void
3448ev_break (EV_P_ int how) EV_THROW 3940ev_break (EV_P_ int how) EV_NOEXCEPT
3449{ 3941{
3450 loop_done = how; 3942 loop_done = how;
3451} 3943}
3452 3944
3453void 3945void
3454ev_ref (EV_P) EV_THROW 3946ev_ref (EV_P) EV_NOEXCEPT
3455{ 3947{
3456 ++activecnt; 3948 ++activecnt;
3457} 3949}
3458 3950
3459void 3951void
3460ev_unref (EV_P) EV_THROW 3952ev_unref (EV_P) EV_NOEXCEPT
3461{ 3953{
3462 --activecnt; 3954 --activecnt;
3463} 3955}
3464 3956
3465void 3957void
3466ev_now_update (EV_P) EV_THROW 3958ev_now_update (EV_P) EV_NOEXCEPT
3467{ 3959{
3468 time_update (EV_A_ 1e100); 3960 time_update (EV_A_ EV_TSTAMP_HUGE);
3469} 3961}
3470 3962
3471void 3963void
3472ev_suspend (EV_P) EV_THROW 3964ev_suspend (EV_P) EV_NOEXCEPT
3473{ 3965{
3474 ev_now_update (EV_A); 3966 ev_now_update (EV_A);
3475} 3967}
3476 3968
3477void 3969void
3478ev_resume (EV_P) EV_THROW 3970ev_resume (EV_P) EV_NOEXCEPT
3479{ 3971{
3480 ev_tstamp mn_prev = mn_now; 3972 ev_tstamp mn_prev = mn_now;
3481 3973
3482 ev_now_update (EV_A); 3974 ev_now_update (EV_A);
3483 timers_reschedule (EV_A_ mn_now - mn_prev); 3975 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3500inline_size void 3992inline_size void
3501wlist_del (WL *head, WL elem) 3993wlist_del (WL *head, WL elem)
3502{ 3994{
3503 while (*head) 3995 while (*head)
3504 { 3996 {
3505 if (expect_true (*head == elem)) 3997 if (ecb_expect_true (*head == elem))
3506 { 3998 {
3507 *head = elem->next; 3999 *head = elem->next;
3508 break; 4000 break;
3509 } 4001 }
3510 4002
… …
3522 w->pending = 0; 4014 w->pending = 0;
3523 } 4015 }
3524} 4016}
3525 4017
3526int 4018int
3527ev_clear_pending (EV_P_ void *w) EV_THROW 4019ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3528{ 4020{
3529 W w_ = (W)w; 4021 W w_ = (W)w;
3530 int pending = w_->pending; 4022 int pending = w_->pending;
3531 4023
3532 if (expect_true (pending)) 4024 if (ecb_expect_true (pending))
3533 { 4025 {
3534 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4026 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3535 p->w = (W)&pending_w; 4027 p->w = (W)&pending_w;
3536 w_->pending = 0; 4028 w_->pending = 0;
3537 return p->events; 4029 return p->events;
… …
3564 w->active = 0; 4056 w->active = 0;
3565} 4057}
3566 4058
3567/*****************************************************************************/ 4059/*****************************************************************************/
3568 4060
3569void noinline 4061ecb_noinline
4062void
3570ev_io_start (EV_P_ ev_io *w) EV_THROW 4063ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3571{ 4064{
3572 int fd = w->fd; 4065 int fd = w->fd;
3573 4066
3574 if (expect_false (ev_is_active (w))) 4067 if (ecb_expect_false (ev_is_active (w)))
3575 return; 4068 return;
3576 4069
3577 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4070 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3578 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4071 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3579 4072
4073#if EV_VERIFY >= 2
4074 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4075#endif
3580 EV_FREQUENT_CHECK; 4076 EV_FREQUENT_CHECK;
3581 4077
3582 ev_start (EV_A_ (W)w, 1); 4078 ev_start (EV_A_ (W)w, 1);
3583 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4079 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3584 wlist_add (&anfds[fd].head, (WL)w); 4080 wlist_add (&anfds[fd].head, (WL)w);
3585 4081
3586 /* common bug, apparently */ 4082 /* common bug, apparently */
3587 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4083 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3588 4084
… …
3590 w->events &= ~EV__IOFDSET; 4086 w->events &= ~EV__IOFDSET;
3591 4087
3592 EV_FREQUENT_CHECK; 4088 EV_FREQUENT_CHECK;
3593} 4089}
3594 4090
3595void noinline 4091ecb_noinline
4092void
3596ev_io_stop (EV_P_ ev_io *w) EV_THROW 4093ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3597{ 4094{
3598 clear_pending (EV_A_ (W)w); 4095 clear_pending (EV_A_ (W)w);
3599 if (expect_false (!ev_is_active (w))) 4096 if (ecb_expect_false (!ev_is_active (w)))
3600 return; 4097 return;
3601 4098
3602 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4099 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3603 4100
4101#if EV_VERIFY >= 2
4102 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4103#endif
3604 EV_FREQUENT_CHECK; 4104 EV_FREQUENT_CHECK;
3605 4105
3606 wlist_del (&anfds[w->fd].head, (WL)w); 4106 wlist_del (&anfds[w->fd].head, (WL)w);
3607 ev_stop (EV_A_ (W)w); 4107 ev_stop (EV_A_ (W)w);
3608 4108
3609 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4109 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3610 4110
3611 EV_FREQUENT_CHECK; 4111 EV_FREQUENT_CHECK;
3612} 4112}
3613 4113
3614void noinline 4114ecb_noinline
4115void
3615ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4116ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3616{ 4117{
3617 if (expect_false (ev_is_active (w))) 4118 if (ecb_expect_false (ev_is_active (w)))
3618 return; 4119 return;
3619 4120
3620 ev_at (w) += mn_now; 4121 ev_at (w) += mn_now;
3621 4122
3622 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4123 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3623 4124
3624 EV_FREQUENT_CHECK; 4125 EV_FREQUENT_CHECK;
3625 4126
3626 ++timercnt; 4127 ++timercnt;
3627 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4128 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3628 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4129 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3629 ANHE_w (timers [ev_active (w)]) = (WT)w; 4130 ANHE_w (timers [ev_active (w)]) = (WT)w;
3630 ANHE_at_cache (timers [ev_active (w)]); 4131 ANHE_at_cache (timers [ev_active (w)]);
3631 upheap (timers, ev_active (w)); 4132 upheap (timers, ev_active (w));
3632 4133
3633 EV_FREQUENT_CHECK; 4134 EV_FREQUENT_CHECK;
3634 4135
3635 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4136 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3636} 4137}
3637 4138
3638void noinline 4139ecb_noinline
4140void
3639ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4141ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3640{ 4142{
3641 clear_pending (EV_A_ (W)w); 4143 clear_pending (EV_A_ (W)w);
3642 if (expect_false (!ev_is_active (w))) 4144 if (ecb_expect_false (!ev_is_active (w)))
3643 return; 4145 return;
3644 4146
3645 EV_FREQUENT_CHECK; 4147 EV_FREQUENT_CHECK;
3646 4148
3647 { 4149 {
… …
3649 4151
3650 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4152 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3651 4153
3652 --timercnt; 4154 --timercnt;
3653 4155
3654 if (expect_true (active < timercnt + HEAP0)) 4156 if (ecb_expect_true (active < timercnt + HEAP0))
3655 { 4157 {
3656 timers [active] = timers [timercnt + HEAP0]; 4158 timers [active] = timers [timercnt + HEAP0];
3657 adjustheap (timers, timercnt, active); 4159 adjustheap (timers, timercnt, active);
3658 } 4160 }
3659 } 4161 }
… …
3663 ev_stop (EV_A_ (W)w); 4165 ev_stop (EV_A_ (W)w);
3664 4166
3665 EV_FREQUENT_CHECK; 4167 EV_FREQUENT_CHECK;
3666} 4168}
3667 4169
3668void noinline 4170ecb_noinline
4171void
3669ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4172ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3670{ 4173{
3671 EV_FREQUENT_CHECK; 4174 EV_FREQUENT_CHECK;
3672 4175
3673 clear_pending (EV_A_ (W)w); 4176 clear_pending (EV_A_ (W)w);
3674 4177
… …
3691 4194
3692 EV_FREQUENT_CHECK; 4195 EV_FREQUENT_CHECK;
3693} 4196}
3694 4197
3695ev_tstamp 4198ev_tstamp
3696ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4199ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3697{ 4200{
3698 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4201 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3699} 4202}
3700 4203
3701#if EV_PERIODIC_ENABLE 4204#if EV_PERIODIC_ENABLE
3702void noinline 4205ecb_noinline
4206void
3703ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4207ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3704{ 4208{
3705 if (expect_false (ev_is_active (w))) 4209 if (ecb_expect_false (ev_is_active (w)))
3706 return; 4210 return;
3707 4211
3708 if (w->reschedule_cb) 4212 if (w->reschedule_cb)
3709 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4213 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3710 else if (w->interval) 4214 else if (w->interval)
… …
3717 4221
3718 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3719 4223
3720 ++periodiccnt; 4224 ++periodiccnt;
3721 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4225 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3722 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4226 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3723 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4227 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3724 ANHE_at_cache (periodics [ev_active (w)]); 4228 ANHE_at_cache (periodics [ev_active (w)]);
3725 upheap (periodics, ev_active (w)); 4229 upheap (periodics, ev_active (w));
3726 4230
3727 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
3728 4232
3729 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4233 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3730} 4234}
3731 4235
3732void noinline 4236ecb_noinline
4237void
3733ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4238ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3734{ 4239{
3735 clear_pending (EV_A_ (W)w); 4240 clear_pending (EV_A_ (W)w);
3736 if (expect_false (!ev_is_active (w))) 4241 if (ecb_expect_false (!ev_is_active (w)))
3737 return; 4242 return;
3738 4243
3739 EV_FREQUENT_CHECK; 4244 EV_FREQUENT_CHECK;
3740 4245
3741 { 4246 {
… …
3743 4248
3744 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4249 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3745 4250
3746 --periodiccnt; 4251 --periodiccnt;
3747 4252
3748 if (expect_true (active < periodiccnt + HEAP0)) 4253 if (ecb_expect_true (active < periodiccnt + HEAP0))
3749 { 4254 {
3750 periodics [active] = periodics [periodiccnt + HEAP0]; 4255 periodics [active] = periodics [periodiccnt + HEAP0];
3751 adjustheap (periodics, periodiccnt, active); 4256 adjustheap (periodics, periodiccnt, active);
3752 } 4257 }
3753 } 4258 }
… …
3755 ev_stop (EV_A_ (W)w); 4260 ev_stop (EV_A_ (W)w);
3756 4261
3757 EV_FREQUENT_CHECK; 4262 EV_FREQUENT_CHECK;
3758} 4263}
3759 4264
3760void noinline 4265ecb_noinline
4266void
3761ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4267ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3762{ 4268{
3763 /* TODO: use adjustheap and recalculation */ 4269 /* TODO: use adjustheap and recalculation */
3764 ev_periodic_stop (EV_A_ w); 4270 ev_periodic_stop (EV_A_ w);
3765 ev_periodic_start (EV_A_ w); 4271 ev_periodic_start (EV_A_ w);
3766} 4272}
… …
3770# define SA_RESTART 0 4276# define SA_RESTART 0
3771#endif 4277#endif
3772 4278
3773#if EV_SIGNAL_ENABLE 4279#if EV_SIGNAL_ENABLE
3774 4280
3775void noinline 4281ecb_noinline
4282void
3776ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4283ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3777{ 4284{
3778 if (expect_false (ev_is_active (w))) 4285 if (ecb_expect_false (ev_is_active (w)))
3779 return; 4286 return;
3780 4287
3781 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4288 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3782 4289
3783#if EV_MULTIPLICITY 4290#if EV_MULTIPLICITY
… …
3852 } 4359 }
3853 4360
3854 EV_FREQUENT_CHECK; 4361 EV_FREQUENT_CHECK;
3855} 4362}
3856 4363
3857void noinline 4364ecb_noinline
4365void
3858ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4366ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3859{ 4367{
3860 clear_pending (EV_A_ (W)w); 4368 clear_pending (EV_A_ (W)w);
3861 if (expect_false (!ev_is_active (w))) 4369 if (ecb_expect_false (!ev_is_active (w)))
3862 return; 4370 return;
3863 4371
3864 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
3865 4373
3866 wlist_del (&signals [w->signum - 1].head, (WL)w); 4374 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3894#endif 4402#endif
3895 4403
3896#if EV_CHILD_ENABLE 4404#if EV_CHILD_ENABLE
3897 4405
3898void 4406void
3899ev_child_start (EV_P_ ev_child *w) EV_THROW 4407ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3900{ 4408{
3901#if EV_MULTIPLICITY 4409#if EV_MULTIPLICITY
3902 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4410 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3903#endif 4411#endif
3904 if (expect_false (ev_is_active (w))) 4412 if (ecb_expect_false (ev_is_active (w)))
3905 return; 4413 return;
3906 4414
3907 EV_FREQUENT_CHECK; 4415 EV_FREQUENT_CHECK;
3908 4416
3909 ev_start (EV_A_ (W)w, 1); 4417 ev_start (EV_A_ (W)w, 1);
… …
3911 4419
3912 EV_FREQUENT_CHECK; 4420 EV_FREQUENT_CHECK;
3913} 4421}
3914 4422
3915void 4423void
3916ev_child_stop (EV_P_ ev_child *w) EV_THROW 4424ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3917{ 4425{
3918 clear_pending (EV_A_ (W)w); 4426 clear_pending (EV_A_ (W)w);
3919 if (expect_false (!ev_is_active (w))) 4427 if (ecb_expect_false (!ev_is_active (w)))
3920 return; 4428 return;
3921 4429
3922 EV_FREQUENT_CHECK; 4430 EV_FREQUENT_CHECK;
3923 4431
3924 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4432 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3938 4446
3939#define DEF_STAT_INTERVAL 5.0074891 4447#define DEF_STAT_INTERVAL 5.0074891
3940#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4448#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3941#define MIN_STAT_INTERVAL 0.1074891 4449#define MIN_STAT_INTERVAL 0.1074891
3942 4450
3943static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4451ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3944 4452
3945#if EV_USE_INOTIFY 4453#if EV_USE_INOTIFY
3946 4454
3947/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4455/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3948# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4456# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3949 4457
3950static void noinline 4458ecb_noinline
4459static void
3951infy_add (EV_P_ ev_stat *w) 4460infy_add (EV_P_ ev_stat *w)
3952{ 4461{
3953 w->wd = inotify_add_watch (fs_fd, w->path, 4462 w->wd = inotify_add_watch (fs_fd, w->path,
3954 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4463 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3955 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4464 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4019 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4528 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4020 ev_timer_again (EV_A_ &w->timer); 4529 ev_timer_again (EV_A_ &w->timer);
4021 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4530 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4022} 4531}
4023 4532
4024static void noinline 4533ecb_noinline
4534static void
4025infy_del (EV_P_ ev_stat *w) 4535infy_del (EV_P_ ev_stat *w)
4026{ 4536{
4027 int slot; 4537 int slot;
4028 int wd = w->wd; 4538 int wd = w->wd;
4029 4539
… …
4036 4546
4037 /* remove this watcher, if others are watching it, they will rearm */ 4547 /* remove this watcher, if others are watching it, they will rearm */
4038 inotify_rm_watch (fs_fd, wd); 4548 inotify_rm_watch (fs_fd, wd);
4039} 4549}
4040 4550
4041static void noinline 4551ecb_noinline
4552static void
4042infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4553infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4043{ 4554{
4044 if (slot < 0) 4555 if (slot < 0)
4045 /* overflow, need to check for all hash slots */ 4556 /* overflow, need to check for all hash slots */
4046 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4557 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4082 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4593 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4083 ofs += sizeof (struct inotify_event) + ev->len; 4594 ofs += sizeof (struct inotify_event) + ev->len;
4084 } 4595 }
4085} 4596}
4086 4597
4087inline_size void ecb_cold 4598inline_size ecb_cold
4599void
4088ev_check_2625 (EV_P) 4600ev_check_2625 (EV_P)
4089{ 4601{
4090 /* kernels < 2.6.25 are borked 4602 /* kernels < 2.6.25 are borked
4091 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4603 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4092 */ 4604 */
… …
4182#else 4694#else
4183# define EV_LSTAT(p,b) lstat (p, b) 4695# define EV_LSTAT(p,b) lstat (p, b)
4184#endif 4696#endif
4185 4697
4186void 4698void
4187ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4699ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4188{ 4700{
4189 if (lstat (w->path, &w->attr) < 0) 4701 if (lstat (w->path, &w->attr) < 0)
4190 w->attr.st_nlink = 0; 4702 w->attr.st_nlink = 0;
4191 else if (!w->attr.st_nlink) 4703 else if (!w->attr.st_nlink)
4192 w->attr.st_nlink = 1; 4704 w->attr.st_nlink = 1;
4193} 4705}
4194 4706
4195static void noinline 4707ecb_noinline
4708static void
4196stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4709stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4197{ 4710{
4198 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4711 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4199 4712
4200 ev_statdata prev = w->attr; 4713 ev_statdata prev = w->attr;
… …
4231 ev_feed_event (EV_A_ w, EV_STAT); 4744 ev_feed_event (EV_A_ w, EV_STAT);
4232 } 4745 }
4233} 4746}
4234 4747
4235void 4748void
4236ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4749ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4237{ 4750{
4238 if (expect_false (ev_is_active (w))) 4751 if (ecb_expect_false (ev_is_active (w)))
4239 return; 4752 return;
4240 4753
4241 ev_stat_stat (EV_A_ w); 4754 ev_stat_stat (EV_A_ w);
4242 4755
4243 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4756 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4262 4775
4263 EV_FREQUENT_CHECK; 4776 EV_FREQUENT_CHECK;
4264} 4777}
4265 4778
4266void 4779void
4267ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4780ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4268{ 4781{
4269 clear_pending (EV_A_ (W)w); 4782 clear_pending (EV_A_ (W)w);
4270 if (expect_false (!ev_is_active (w))) 4783 if (ecb_expect_false (!ev_is_active (w)))
4271 return; 4784 return;
4272 4785
4273 EV_FREQUENT_CHECK; 4786 EV_FREQUENT_CHECK;
4274 4787
4275#if EV_USE_INOTIFY 4788#if EV_USE_INOTIFY
… …
4288} 4801}
4289#endif 4802#endif
4290 4803
4291#if EV_IDLE_ENABLE 4804#if EV_IDLE_ENABLE
4292void 4805void
4293ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4806ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4294{ 4807{
4295 if (expect_false (ev_is_active (w))) 4808 if (ecb_expect_false (ev_is_active (w)))
4296 return; 4809 return;
4297 4810
4298 pri_adjust (EV_A_ (W)w); 4811 pri_adjust (EV_A_ (W)w);
4299 4812
4300 EV_FREQUENT_CHECK; 4813 EV_FREQUENT_CHECK;
… …
4303 int active = ++idlecnt [ABSPRI (w)]; 4816 int active = ++idlecnt [ABSPRI (w)];
4304 4817
4305 ++idleall; 4818 ++idleall;
4306 ev_start (EV_A_ (W)w, active); 4819 ev_start (EV_A_ (W)w, active);
4307 4820
4308 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4821 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4309 idles [ABSPRI (w)][active - 1] = w; 4822 idles [ABSPRI (w)][active - 1] = w;
4310 } 4823 }
4311 4824
4312 EV_FREQUENT_CHECK; 4825 EV_FREQUENT_CHECK;
4313} 4826}
4314 4827
4315void 4828void
4316ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4829ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4317{ 4830{
4318 clear_pending (EV_A_ (W)w); 4831 clear_pending (EV_A_ (W)w);
4319 if (expect_false (!ev_is_active (w))) 4832 if (ecb_expect_false (!ev_is_active (w)))
4320 return; 4833 return;
4321 4834
4322 EV_FREQUENT_CHECK; 4835 EV_FREQUENT_CHECK;
4323 4836
4324 { 4837 {
… …
4335} 4848}
4336#endif 4849#endif
4337 4850
4338#if EV_PREPARE_ENABLE 4851#if EV_PREPARE_ENABLE
4339void 4852void
4340ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4853ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4341{ 4854{
4342 if (expect_false (ev_is_active (w))) 4855 if (ecb_expect_false (ev_is_active (w)))
4343 return; 4856 return;
4344 4857
4345 EV_FREQUENT_CHECK; 4858 EV_FREQUENT_CHECK;
4346 4859
4347 ev_start (EV_A_ (W)w, ++preparecnt); 4860 ev_start (EV_A_ (W)w, ++preparecnt);
4348 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4861 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4349 prepares [preparecnt - 1] = w; 4862 prepares [preparecnt - 1] = w;
4350 4863
4351 EV_FREQUENT_CHECK; 4864 EV_FREQUENT_CHECK;
4352} 4865}
4353 4866
4354void 4867void
4355ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4868ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4356{ 4869{
4357 clear_pending (EV_A_ (W)w); 4870 clear_pending (EV_A_ (W)w);
4358 if (expect_false (!ev_is_active (w))) 4871 if (ecb_expect_false (!ev_is_active (w)))
4359 return; 4872 return;
4360 4873
4361 EV_FREQUENT_CHECK; 4874 EV_FREQUENT_CHECK;
4362 4875
4363 { 4876 {
… …
4373} 4886}
4374#endif 4887#endif
4375 4888
4376#if EV_CHECK_ENABLE 4889#if EV_CHECK_ENABLE
4377void 4890void
4378ev_check_start (EV_P_ ev_check *w) EV_THROW 4891ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4379{ 4892{
4380 if (expect_false (ev_is_active (w))) 4893 if (ecb_expect_false (ev_is_active (w)))
4381 return; 4894 return;
4382 4895
4383 EV_FREQUENT_CHECK; 4896 EV_FREQUENT_CHECK;
4384 4897
4385 ev_start (EV_A_ (W)w, ++checkcnt); 4898 ev_start (EV_A_ (W)w, ++checkcnt);
4386 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4899 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4387 checks [checkcnt - 1] = w; 4900 checks [checkcnt - 1] = w;
4388 4901
4389 EV_FREQUENT_CHECK; 4902 EV_FREQUENT_CHECK;
4390} 4903}
4391 4904
4392void 4905void
4393ev_check_stop (EV_P_ ev_check *w) EV_THROW 4906ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4394{ 4907{
4395 clear_pending (EV_A_ (W)w); 4908 clear_pending (EV_A_ (W)w);
4396 if (expect_false (!ev_is_active (w))) 4909 if (ecb_expect_false (!ev_is_active (w)))
4397 return; 4910 return;
4398 4911
4399 EV_FREQUENT_CHECK; 4912 EV_FREQUENT_CHECK;
4400 4913
4401 { 4914 {
… …
4410 EV_FREQUENT_CHECK; 4923 EV_FREQUENT_CHECK;
4411} 4924}
4412#endif 4925#endif
4413 4926
4414#if EV_EMBED_ENABLE 4927#if EV_EMBED_ENABLE
4415void noinline 4928ecb_noinline
4929void
4416ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4930ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4417{ 4931{
4418 ev_run (w->other, EVRUN_NOWAIT); 4932 ev_run (w->other, EVRUN_NOWAIT);
4419} 4933}
4420 4934
4421static void 4935static void
… …
4469 ev_idle_stop (EV_A_ idle); 4983 ev_idle_stop (EV_A_ idle);
4470} 4984}
4471#endif 4985#endif
4472 4986
4473void 4987void
4474ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4988ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4475{ 4989{
4476 if (expect_false (ev_is_active (w))) 4990 if (ecb_expect_false (ev_is_active (w)))
4477 return; 4991 return;
4478 4992
4479 { 4993 {
4480 EV_P = w->other; 4994 EV_P = w->other;
4481 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4995 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4500 5014
4501 EV_FREQUENT_CHECK; 5015 EV_FREQUENT_CHECK;
4502} 5016}
4503 5017
4504void 5018void
4505ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5019ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4506{ 5020{
4507 clear_pending (EV_A_ (W)w); 5021 clear_pending (EV_A_ (W)w);
4508 if (expect_false (!ev_is_active (w))) 5022 if (ecb_expect_false (!ev_is_active (w)))
4509 return; 5023 return;
4510 5024
4511 EV_FREQUENT_CHECK; 5025 EV_FREQUENT_CHECK;
4512 5026
4513 ev_io_stop (EV_A_ &w->io); 5027 ev_io_stop (EV_A_ &w->io);
… …
4520} 5034}
4521#endif 5035#endif
4522 5036
4523#if EV_FORK_ENABLE 5037#if EV_FORK_ENABLE
4524void 5038void
4525ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5039ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4526{ 5040{
4527 if (expect_false (ev_is_active (w))) 5041 if (ecb_expect_false (ev_is_active (w)))
4528 return; 5042 return;
4529 5043
4530 EV_FREQUENT_CHECK; 5044 EV_FREQUENT_CHECK;
4531 5045
4532 ev_start (EV_A_ (W)w, ++forkcnt); 5046 ev_start (EV_A_ (W)w, ++forkcnt);
4533 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5047 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4534 forks [forkcnt - 1] = w; 5048 forks [forkcnt - 1] = w;
4535 5049
4536 EV_FREQUENT_CHECK; 5050 EV_FREQUENT_CHECK;
4537} 5051}
4538 5052
4539void 5053void
4540ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5054ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4541{ 5055{
4542 clear_pending (EV_A_ (W)w); 5056 clear_pending (EV_A_ (W)w);
4543 if (expect_false (!ev_is_active (w))) 5057 if (ecb_expect_false (!ev_is_active (w)))
4544 return; 5058 return;
4545 5059
4546 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4547 5061
4548 { 5062 {
… …
4558} 5072}
4559#endif 5073#endif
4560 5074
4561#if EV_CLEANUP_ENABLE 5075#if EV_CLEANUP_ENABLE
4562void 5076void
4563ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5077ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4564{ 5078{
4565 if (expect_false (ev_is_active (w))) 5079 if (ecb_expect_false (ev_is_active (w)))
4566 return; 5080 return;
4567 5081
4568 EV_FREQUENT_CHECK; 5082 EV_FREQUENT_CHECK;
4569 5083
4570 ev_start (EV_A_ (W)w, ++cleanupcnt); 5084 ev_start (EV_A_ (W)w, ++cleanupcnt);
4571 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5085 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4572 cleanups [cleanupcnt - 1] = w; 5086 cleanups [cleanupcnt - 1] = w;
4573 5087
4574 /* cleanup watchers should never keep a refcount on the loop */ 5088 /* cleanup watchers should never keep a refcount on the loop */
4575 ev_unref (EV_A); 5089 ev_unref (EV_A);
4576 EV_FREQUENT_CHECK; 5090 EV_FREQUENT_CHECK;
4577} 5091}
4578 5092
4579void 5093void
4580ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5094ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4581{ 5095{
4582 clear_pending (EV_A_ (W)w); 5096 clear_pending (EV_A_ (W)w);
4583 if (expect_false (!ev_is_active (w))) 5097 if (ecb_expect_false (!ev_is_active (w)))
4584 return; 5098 return;
4585 5099
4586 EV_FREQUENT_CHECK; 5100 EV_FREQUENT_CHECK;
4587 ev_ref (EV_A); 5101 ev_ref (EV_A);
4588 5102
… …
4599} 5113}
4600#endif 5114#endif
4601 5115
4602#if EV_ASYNC_ENABLE 5116#if EV_ASYNC_ENABLE
4603void 5117void
4604ev_async_start (EV_P_ ev_async *w) EV_THROW 5118ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4605{ 5119{
4606 if (expect_false (ev_is_active (w))) 5120 if (ecb_expect_false (ev_is_active (w)))
4607 return; 5121 return;
4608 5122
4609 w->sent = 0; 5123 w->sent = 0;
4610 5124
4611 evpipe_init (EV_A); 5125 evpipe_init (EV_A);
4612 5126
4613 EV_FREQUENT_CHECK; 5127 EV_FREQUENT_CHECK;
4614 5128
4615 ev_start (EV_A_ (W)w, ++asynccnt); 5129 ev_start (EV_A_ (W)w, ++asynccnt);
4616 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5130 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4617 asyncs [asynccnt - 1] = w; 5131 asyncs [asynccnt - 1] = w;
4618 5132
4619 EV_FREQUENT_CHECK; 5133 EV_FREQUENT_CHECK;
4620} 5134}
4621 5135
4622void 5136void
4623ev_async_stop (EV_P_ ev_async *w) EV_THROW 5137ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4624{ 5138{
4625 clear_pending (EV_A_ (W)w); 5139 clear_pending (EV_A_ (W)w);
4626 if (expect_false (!ev_is_active (w))) 5140 if (ecb_expect_false (!ev_is_active (w)))
4627 return; 5141 return;
4628 5142
4629 EV_FREQUENT_CHECK; 5143 EV_FREQUENT_CHECK;
4630 5144
4631 { 5145 {
… …
4639 5153
4640 EV_FREQUENT_CHECK; 5154 EV_FREQUENT_CHECK;
4641} 5155}
4642 5156
4643void 5157void
4644ev_async_send (EV_P_ ev_async *w) EV_THROW 5158ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4645{ 5159{
4646 w->sent = 1; 5160 w->sent = 1;
4647 evpipe_write (EV_A_ &async_pending); 5161 evpipe_write (EV_A_ &async_pending);
4648} 5162}
4649#endif 5163#endif
… …
4686 5200
4687 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5201 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4688} 5202}
4689 5203
4690void 5204void
4691ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5205ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4692{ 5206{
4693 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5207 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4694
4695 if (expect_false (!once))
4696 {
4697 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4698 return;
4699 }
4700 5208
4701 once->cb = cb; 5209 once->cb = cb;
4702 once->arg = arg; 5210 once->arg = arg;
4703 5211
4704 ev_init (&once->io, once_cb_io); 5212 ev_init (&once->io, once_cb_io);
… …
4717} 5225}
4718 5226
4719/*****************************************************************************/ 5227/*****************************************************************************/
4720 5228
4721#if EV_WALK_ENABLE 5229#if EV_WALK_ENABLE
4722void ecb_cold 5230ecb_cold
5231void
4723ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5232ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4724{ 5233{
4725 int i, j; 5234 int i, j;
4726 ev_watcher_list *wl, *wn; 5235 ev_watcher_list *wl, *wn;
4727 5236
4728 if (types & (EV_IO | EV_EMBED)) 5237 if (types & (EV_IO | EV_EMBED))

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