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Comparing libev/ev.c (file contents):
Revision 1.457 by root, Thu Sep 5 18:45:29 2013 UTC vs.
Revision 1.513 by root, Fri Dec 20 05:20:23 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/version.h>
454# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
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
561#endif 666#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")
631 #elif defined __mips__ 779 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */ 780 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
633 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ 781 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") 782 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
635 #elif defined __alpha__ 783 #elif defined __alpha__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 784 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
637 #elif defined __hppa__ 785 #elif defined __hppa__
… …
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 #include <math.h> /* for frexp*, ldexp* */
1073#endif 1407#endif
1074 1408
1075#ifndef ECB_NO_LIBM 1409#ifndef ECB_NO_LIBM
1076 1410
1411 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
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
1420 #ifdef NAN
1421 #define ECB_NAN NAN
1422 #else
1423 #define ECB_NAN ECB_INFINITY
1424 #endif
1425
1426 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1427 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1428 #define ecb_frexpf(x,e) frexpf ((x), (e))
1429 #else
1430 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1431 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1432 #endif
1433
1077 /* convert a float to ieee single/binary32 */ 1434 /* convert a float to ieee single/binary32 */
1078 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);
1079 ecb_function_ uint32_t 1436 ecb_function_ ecb_const uint32_t
1080 ecb_float_to_binary32 (float x) 1437 ecb_float_to_binary32 (float x)
1081 { 1438 {
1082 uint32_t r; 1439 uint32_t r;
1083 1440
1084 #if ECB_STDFP 1441 #if ECB_STDFP
… …
1091 if (x == 0e0f ) return 0x00000000U; 1448 if (x == 0e0f ) return 0x00000000U;
1092 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1449 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1093 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1450 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1094 if (x != x ) return 0x7fbfffffU; 1451 if (x != x ) return 0x7fbfffffU;
1095 1452
1096 m = frexpf (x, &e) * 0x1000000U; 1453 m = ecb_frexpf (x, &e) * 0x1000000U;
1097 1454
1098 r = m & 0x80000000U; 1455 r = m & 0x80000000U;
1099 1456
1100 if (r) 1457 if (r)
1101 m = -m; 1458 m = -m;
… …
1113 1470
1114 return r; 1471 return r;
1115 } 1472 }
1116 1473
1117 /* converts an ieee single/binary32 to a float */ 1474 /* converts an ieee single/binary32 to a float */
1118 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);
1119 ecb_function_ float 1476 ecb_function_ ecb_const float
1120 ecb_binary32_to_float (uint32_t x) 1477 ecb_binary32_to_float (uint32_t x)
1121 { 1478 {
1122 float r; 1479 float r;
1123 1480
1124 #if ECB_STDFP 1481 #if ECB_STDFP
… …
1134 x |= 0x800000U; 1491 x |= 0x800000U;
1135 else 1492 else
1136 e = 1; 1493 e = 1;
1137 1494
1138 /* 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 */
1139 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1496 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1140 1497
1141 r = neg ? -r : r; 1498 r = neg ? -r : r;
1142 #endif 1499 #endif
1143 1500
1144 return r; 1501 return r;
1145 } 1502 }
1146 1503
1147 /* convert a double to ieee double/binary64 */ 1504 /* convert a double to ieee double/binary64 */
1148 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);
1149 ecb_function_ uint64_t 1506 ecb_function_ ecb_const uint64_t
1150 ecb_double_to_binary64 (double x) 1507 ecb_double_to_binary64 (double x)
1151 { 1508 {
1152 uint64_t r; 1509 uint64_t r;
1153 1510
1154 #if ECB_STDFP 1511 #if ECB_STDFP
… …
1183 1540
1184 return r; 1541 return r;
1185 } 1542 }
1186 1543
1187 /* converts an ieee double/binary64 to a double */ 1544 /* converts an ieee double/binary64 to a double */
1188 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);
1189 ecb_function_ double 1546 ecb_function_ ecb_const double
1190 ecb_binary64_to_double (uint64_t x) 1547 ecb_binary64_to_double (uint64_t x)
1191 { 1548 {
1192 double r; 1549 double r;
1193 1550
1194 #if ECB_STDFP 1551 #if ECB_STDFP
… …
1212 #endif 1569 #endif
1213 1570
1214 return r; 1571 return r;
1215 } 1572 }
1216 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
1217#endif 1590#endif
1218 1591
1219#endif 1592#endif
1220 1593
1221/* ECB.H END */ 1594/* ECB.H END */
1222 1595
1223#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1596#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1224/* 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
1225 * 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
1226 * 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
1227 * libev, in which cases the memory fences become nops. 1600 * libev, in which cases the memory fences become nops.
1228 * alternatively, you can remove this #error and link against libpthread, 1601 * alternatively, you can remove this #error and link against libpthread,
1229 * which will then provide the memory fences. 1602 * which will then provide the memory fences.
1230 */ 1603 */
1231# error "memory fences not defined for your architecture, please report" 1604# error "memory fences not defined for your architecture, please report"
… …
1235# define ECB_MEMORY_FENCE do { } while (0) 1608# define ECB_MEMORY_FENCE do { } while (0)
1236# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1609# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1237# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1610# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1238#endif 1611#endif
1239 1612
1240#define expect_false(cond) ecb_expect_false (cond)
1241#define expect_true(cond) ecb_expect_true (cond)
1242#define noinline ecb_noinline
1243
1244#define inline_size ecb_inline 1613#define inline_size ecb_inline
1245 1614
1246#if EV_FEATURE_CODE 1615#if EV_FEATURE_CODE
1247# define inline_speed ecb_inline 1616# define inline_speed ecb_inline
1248#else 1617#else
1249# define inline_speed static noinline 1618# define inline_speed ecb_noinline static
1250#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/*****************************************************************************/
1251 1686
1252#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1687#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1253 1688
1254#if EV_MINPRI == EV_MAXPRI 1689#if EV_MINPRI == EV_MAXPRI
1255# define ABSPRI(w) (((W)w), 0) 1690# define ABSPRI(w) (((W)w), 0)
1256#else 1691#else
1257# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1692# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1258#endif 1693#endif
1259 1694
1260#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1695#define EMPTY /* required for microsofts broken pseudo-c compiler */
1261#define EMPTY2(a,b) /* used to suppress some warnings */
1262 1696
1263typedef ev_watcher *W; 1697typedef ev_watcher *W;
1264typedef ev_watcher_list *WL; 1698typedef ev_watcher_list *WL;
1265typedef ev_watcher_time *WT; 1699typedef ev_watcher_time *WT;
1266 1700
… …
1291# include "ev_win32.c" 1725# include "ev_win32.c"
1292#endif 1726#endif
1293 1727
1294/*****************************************************************************/ 1728/*****************************************************************************/
1295 1729
1730#if EV_USE_LINUXAIO
1731# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1732#endif
1733
1296/* define a suitable floor function (only used by periodics atm) */ 1734/* define a suitable floor function (only used by periodics atm) */
1297 1735
1298#if EV_USE_FLOOR 1736#if EV_USE_FLOOR
1299# include <math.h> 1737# include <math.h>
1300# define ev_floor(v) floor (v) 1738# define ev_floor(v) floor (v)
1301#else 1739#else
1302 1740
1303#include <float.h> 1741#include <float.h>
1304 1742
1305/* 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
1306static ev_tstamp noinline 1745static ev_tstamp
1307ev_floor (ev_tstamp v) 1746ev_floor (ev_tstamp v)
1308{ 1747{
1309 /* the choice of shift factor is not terribly important */ 1748 /* the choice of shift factor is not terribly important */
1310#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1749#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1311 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1750 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1312#else 1751#else
1313 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1752 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1314#endif 1753#endif
1315 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
1316 /* argument too large for an unsigned long? */ 1763 /* argument too large for an unsigned long? then reduce it */
1317 if (expect_false (v >= shift)) 1764 if (ecb_expect_false (v >= shift))
1318 { 1765 {
1319 ev_tstamp f; 1766 ev_tstamp f;
1320 1767
1321 if (v == v - 1.) 1768 if (v == v - 1.)
1322 return v; /* very large number */ 1769 return v; /* very large numbers are assumed to be integer */
1323 1770
1324 f = shift * ev_floor (v * (1. / shift)); 1771 f = shift * ev_floor (v * (1. / shift));
1325 return f + ev_floor (v - f); 1772 return f + ev_floor (v - f);
1326 } 1773 }
1327 1774
1328 /* special treatment for negative args? */
1329 if (expect_false (v < 0.))
1330 {
1331 ev_tstamp f = -ev_floor (-v);
1332
1333 return f - (f == v ? 0 : 1);
1334 }
1335
1336 /* fits into an unsigned long */ 1775 /* fits into an unsigned long */
1337 return (unsigned long)v; 1776 return (unsigned long)v;
1338} 1777}
1339 1778
1340#endif 1779#endif
… …
1343 1782
1344#ifdef __linux 1783#ifdef __linux
1345# include <sys/utsname.h> 1784# include <sys/utsname.h>
1346#endif 1785#endif
1347 1786
1348static unsigned int noinline ecb_cold 1787ecb_noinline ecb_cold
1788static unsigned int
1349ev_linux_version (void) 1789ev_linux_version (void)
1350{ 1790{
1351#ifdef __linux 1791#ifdef __linux
1352 unsigned int v = 0; 1792 unsigned int v = 0;
1353 struct utsname buf; 1793 struct utsname buf;
… …
1382} 1822}
1383 1823
1384/*****************************************************************************/ 1824/*****************************************************************************/
1385 1825
1386#if EV_AVOID_STDIO 1826#if EV_AVOID_STDIO
1387static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1388ev_printerr (const char *msg) 1829ev_printerr (const char *msg)
1389{ 1830{
1390 write (STDERR_FILENO, msg, strlen (msg)); 1831 write (STDERR_FILENO, msg, strlen (msg));
1391} 1832}
1392#endif 1833#endif
1393 1834
1394static void (*syserr_cb)(const char *msg) EV_THROW; 1835static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1395 1836
1396void ecb_cold 1837ecb_cold
1838void
1397ev_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
1398{ 1840{
1399 syserr_cb = cb; 1841 syserr_cb = cb;
1400} 1842}
1401 1843
1402static void noinline ecb_cold 1844ecb_noinline ecb_cold
1845static void
1403ev_syserr (const char *msg) 1846ev_syserr (const char *msg)
1404{ 1847{
1405 if (!msg) 1848 if (!msg)
1406 msg = "(libev) system error"; 1849 msg = "(libev) system error";
1407 1850
… …
1420 abort (); 1863 abort ();
1421 } 1864 }
1422} 1865}
1423 1866
1424static void * 1867static void *
1425ev_realloc_emul (void *ptr, long size) EV_THROW 1868ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1426{ 1869{
1427 /* some systems, notably openbsd and darwin, fail to properly 1870 /* some systems, notably openbsd and darwin, fail to properly
1428 * 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
1429 * the single unix specification, so work around them here. 1872 * the single unix specification, so work around them here.
1430 * recently, also (at least) fedora and debian started breaking it, 1873 * recently, also (at least) fedora and debian started breaking it,
… …
1436 1879
1437 free (ptr); 1880 free (ptr);
1438 return 0; 1881 return 0;
1439} 1882}
1440 1883
1441static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1884static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1442 1885
1443void ecb_cold 1886ecb_cold
1887void
1444ev_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
1445{ 1889{
1446 alloc = cb; 1890 alloc = cb;
1447} 1891}
1448 1892
1449inline_speed void * 1893inline_speed void *
… …
1476typedef struct 1920typedef struct
1477{ 1921{
1478 WL head; 1922 WL head;
1479 unsigned char events; /* the events watched for */ 1923 unsigned char events; /* the events watched for */
1480 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) */
1481 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 */
1482 unsigned char unused; 1926 unsigned char eflags; /* flags field for use by backends */
1483#if EV_USE_EPOLL 1927#if EV_USE_EPOLL
1484 unsigned int egen; /* generation counter to counter epoll bugs */ 1928 unsigned int egen; /* generation counter to counter epoll bugs */
1485#endif 1929#endif
1486#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1930#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1487 SOCKET handle; 1931 SOCKET handle;
… …
1541 static struct ev_loop default_loop_struct; 1985 static struct ev_loop default_loop_struct;
1542 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 */
1543 1987
1544#else 1988#else
1545 1989
1546 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 */
1547 #define VAR(name,decl) static decl; 1991 #define VAR(name,decl) static decl;
1548 #include "ev_vars.h" 1992 #include "ev_vars.h"
1549 #undef VAR 1993 #undef VAR
1550 1994
1551 static int ev_default_loop_ptr; 1995 static int ev_default_loop_ptr;
1552 1996
1553#endif 1997#endif
1554 1998
1555#if EV_FEATURE_API 1999#if EV_FEATURE_API
1556# 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)
1557# 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)
1558# define EV_INVOKE_PENDING invoke_cb (EV_A) 2002# define EV_INVOKE_PENDING invoke_cb (EV_A)
1559#else 2003#else
1560# define EV_RELEASE_CB (void)0 2004# define EV_RELEASE_CB (void)0
1561# define EV_ACQUIRE_CB (void)0 2005# define EV_ACQUIRE_CB (void)0
1562# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2006# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1566 2010
1567/*****************************************************************************/ 2011/*****************************************************************************/
1568 2012
1569#ifndef EV_HAVE_EV_TIME 2013#ifndef EV_HAVE_EV_TIME
1570ev_tstamp 2014ev_tstamp
1571ev_time (void) EV_THROW 2015ev_time (void) EV_NOEXCEPT
1572{ 2016{
1573#if EV_USE_REALTIME 2017#if EV_USE_REALTIME
1574 if (expect_true (have_realtime)) 2018 if (ecb_expect_true (have_realtime))
1575 { 2019 {
1576 struct timespec ts; 2020 struct timespec ts;
1577 clock_gettime (CLOCK_REALTIME, &ts); 2021 clock_gettime (CLOCK_REALTIME, &ts);
1578 return ts.tv_sec + ts.tv_nsec * 1e-9; 2022 return EV_TS_GET (ts);
1579 } 2023 }
1580#endif 2024#endif
1581 2025
2026 {
1582 struct timeval tv; 2027 struct timeval tv;
1583 gettimeofday (&tv, 0); 2028 gettimeofday (&tv, 0);
1584 return tv.tv_sec + tv.tv_usec * 1e-6; 2029 return EV_TV_GET (tv);
2030 }
1585} 2031}
1586#endif 2032#endif
1587 2033
1588inline_size ev_tstamp 2034inline_size ev_tstamp
1589get_clock (void) 2035get_clock (void)
1590{ 2036{
1591#if EV_USE_MONOTONIC 2037#if EV_USE_MONOTONIC
1592 if (expect_true (have_monotonic)) 2038 if (ecb_expect_true (have_monotonic))
1593 { 2039 {
1594 struct timespec ts; 2040 struct timespec ts;
1595 clock_gettime (CLOCK_MONOTONIC, &ts); 2041 clock_gettime (CLOCK_MONOTONIC, &ts);
1596 return ts.tv_sec + ts.tv_nsec * 1e-9; 2042 return EV_TS_GET (ts);
1597 } 2043 }
1598#endif 2044#endif
1599 2045
1600 return ev_time (); 2046 return ev_time ();
1601} 2047}
1602 2048
1603#if EV_MULTIPLICITY 2049#if EV_MULTIPLICITY
1604ev_tstamp 2050ev_tstamp
1605ev_now (EV_P) EV_THROW 2051ev_now (EV_P) EV_NOEXCEPT
1606{ 2052{
1607 return ev_rt_now; 2053 return ev_rt_now;
1608} 2054}
1609#endif 2055#endif
1610 2056
1611void 2057void
1612ev_sleep (ev_tstamp delay) EV_THROW 2058ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1613{ 2059{
1614 if (delay > 0.) 2060 if (delay > EV_TS_CONST (0.))
1615 { 2061 {
1616#if EV_USE_NANOSLEEP 2062#if EV_USE_NANOSLEEP
1617 struct timespec ts; 2063 struct timespec ts;
1618 2064
1619 EV_TS_SET (ts, delay); 2065 EV_TS_SET (ts, delay);
1620 nanosleep (&ts, 0); 2066 nanosleep (&ts, 0);
1621#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) */
1622 Sleep ((unsigned long)(delay * 1e3)); 2070 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1623#else 2071#else
1624 struct timeval tv; 2072 struct timeval tv;
1625 2073
1626 /* 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 */
1627 /* something not guaranteed by newer posix versions, but guaranteed */ 2075 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1657 } 2105 }
1658 2106
1659 return ncur; 2107 return ncur;
1660} 2108}
1661 2109
1662static void * noinline ecb_cold 2110ecb_noinline ecb_cold
2111static void *
1663array_realloc (int elem, void *base, int *cur, int cnt) 2112array_realloc (int elem, void *base, int *cur, int cnt)
1664{ 2113{
1665 *cur = array_nextsize (elem, *cur, cnt); 2114 *cur = array_nextsize (elem, *cur, cnt);
1666 return ev_realloc (base, elem * *cur); 2115 return ev_realloc (base, elem * *cur);
1667} 2116}
1668 2117
2118#define array_needsize_noinit(base,offset,count)
2119
1669#define array_init_zero(base,count) \ 2120#define array_needsize_zerofill(base,offset,count) \
1670 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2121 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1671 2122
1672#define array_needsize(type,base,cur,cnt,init) \ 2123#define array_needsize(type,base,cur,cnt,init) \
1673 if (expect_false ((cnt) > (cur))) \ 2124 if (ecb_expect_false ((cnt) > (cur))) \
1674 { \ 2125 { \
1675 int ecb_unused ocur_ = (cur); \ 2126 ecb_unused int ocur_ = (cur); \
1676 (base) = (type *)array_realloc \ 2127 (base) = (type *)array_realloc \
1677 (sizeof (type), (base), &(cur), (cnt)); \ 2128 (sizeof (type), (base), &(cur), (cnt)); \
1678 init ((base) + (ocur_), (cur) - ocur_); \ 2129 init ((base), ocur_, ((cur) - ocur_)); \
1679 } 2130 }
1680 2131
1681#if 0 2132#if 0
1682#define array_slim(type,stem) \ 2133#define array_slim(type,stem) \
1683 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2134 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1692 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2143 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1693 2144
1694/*****************************************************************************/ 2145/*****************************************************************************/
1695 2146
1696/* dummy callback for pending events */ 2147/* dummy callback for pending events */
1697static void noinline 2148ecb_noinline
2149static void
1698pendingcb (EV_P_ ev_prepare *w, int revents) 2150pendingcb (EV_P_ ev_prepare *w, int revents)
1699{ 2151{
1700} 2152}
1701 2153
1702void noinline 2154ecb_noinline
2155void
1703ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2156ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1704{ 2157{
1705 W w_ = (W)w; 2158 W w_ = (W)w;
1706 int pri = ABSPRI (w_); 2159 int pri = ABSPRI (w_);
1707 2160
1708 if (expect_false (w_->pending)) 2161 if (ecb_expect_false (w_->pending))
1709 pendings [pri][w_->pending - 1].events |= revents; 2162 pendings [pri][w_->pending - 1].events |= revents;
1710 else 2163 else
1711 { 2164 {
1712 w_->pending = ++pendingcnt [pri]; 2165 w_->pending = ++pendingcnt [pri];
1713 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2166 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1714 pendings [pri][w_->pending - 1].w = w_; 2167 pendings [pri][w_->pending - 1].w = w_;
1715 pendings [pri][w_->pending - 1].events = revents; 2168 pendings [pri][w_->pending - 1].events = revents;
1716 } 2169 }
1717 2170
1718 pendingpri = NUMPRI - 1; 2171 pendingpri = NUMPRI - 1;
1719} 2172}
1720 2173
1721inline_speed void 2174inline_speed void
1722feed_reverse (EV_P_ W w) 2175feed_reverse (EV_P_ W w)
1723{ 2176{
1724 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2177 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1725 rfeeds [rfeedcnt++] = w; 2178 rfeeds [rfeedcnt++] = w;
1726} 2179}
1727 2180
1728inline_size void 2181inline_size void
1729feed_reverse_done (EV_P_ int revents) 2182feed_reverse_done (EV_P_ int revents)
… …
1764inline_speed void 2217inline_speed void
1765fd_event (EV_P_ int fd, int revents) 2218fd_event (EV_P_ int fd, int revents)
1766{ 2219{
1767 ANFD *anfd = anfds + fd; 2220 ANFD *anfd = anfds + fd;
1768 2221
1769 if (expect_true (!anfd->reify)) 2222 if (ecb_expect_true (!anfd->reify))
1770 fd_event_nocheck (EV_A_ fd, revents); 2223 fd_event_nocheck (EV_A_ fd, revents);
1771} 2224}
1772 2225
1773void 2226void
1774ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2227ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1775{ 2228{
1776 if (fd >= 0 && fd < anfdmax) 2229 if (fd >= 0 && fd < anfdmax)
1777 fd_event_nocheck (EV_A_ fd, revents); 2230 fd_event_nocheck (EV_A_ fd, revents);
1778} 2231}
1779 2232
… …
1816 ev_io *w; 2269 ev_io *w;
1817 2270
1818 unsigned char o_events = anfd->events; 2271 unsigned char o_events = anfd->events;
1819 unsigned char o_reify = anfd->reify; 2272 unsigned char o_reify = anfd->reify;
1820 2273
1821 anfd->reify = 0; 2274 anfd->reify = 0;
1822 2275
1823 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2276 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1824 { 2277 {
1825 anfd->events = 0; 2278 anfd->events = 0;
1826 2279
1827 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)
1828 anfd->events |= (unsigned char)w->events; 2281 anfd->events |= (unsigned char)w->events;
… …
1837 2290
1838 fdchangecnt = 0; 2291 fdchangecnt = 0;
1839} 2292}
1840 2293
1841/* something about the given fd changed */ 2294/* something about the given fd changed */
1842inline_size void 2295inline_size
2296void
1843fd_change (EV_P_ int fd, int flags) 2297fd_change (EV_P_ int fd, int flags)
1844{ 2298{
1845 unsigned char reify = anfds [fd].reify; 2299 unsigned char reify = anfds [fd].reify;
1846 anfds [fd].reify |= flags; 2300 anfds [fd].reify |= flags;
1847 2301
1848 if (expect_true (!reify)) 2302 if (ecb_expect_true (!reify))
1849 { 2303 {
1850 ++fdchangecnt; 2304 ++fdchangecnt;
1851 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2305 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1852 fdchanges [fdchangecnt - 1] = fd; 2306 fdchanges [fdchangecnt - 1] = fd;
1853 } 2307 }
1854} 2308}
1855 2309
1856/* 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 */
1857inline_speed void ecb_cold 2311inline_speed ecb_cold void
1858fd_kill (EV_P_ int fd) 2312fd_kill (EV_P_ int fd)
1859{ 2313{
1860 ev_io *w; 2314 ev_io *w;
1861 2315
1862 while ((w = (ev_io *)anfds [fd].head)) 2316 while ((w = (ev_io *)anfds [fd].head))
… …
1865 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);
1866 } 2320 }
1867} 2321}
1868 2322
1869/* check whether the given fd is actually valid, for error recovery */ 2323/* check whether the given fd is actually valid, for error recovery */
1870inline_size int ecb_cold 2324inline_size ecb_cold int
1871fd_valid (int fd) 2325fd_valid (int fd)
1872{ 2326{
1873#ifdef _WIN32 2327#ifdef _WIN32
1874 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2328 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1875#else 2329#else
1876 return fcntl (fd, F_GETFD) != -1; 2330 return fcntl (fd, F_GETFD) != -1;
1877#endif 2331#endif
1878} 2332}
1879 2333
1880/* called on EBADF to verify fds */ 2334/* called on EBADF to verify fds */
1881static void noinline ecb_cold 2335ecb_noinline ecb_cold
2336static void
1882fd_ebadf (EV_P) 2337fd_ebadf (EV_P)
1883{ 2338{
1884 int fd; 2339 int fd;
1885 2340
1886 for (fd = 0; fd < anfdmax; ++fd) 2341 for (fd = 0; fd < anfdmax; ++fd)
… …
1888 if (!fd_valid (fd) && errno == EBADF) 2343 if (!fd_valid (fd) && errno == EBADF)
1889 fd_kill (EV_A_ fd); 2344 fd_kill (EV_A_ fd);
1890} 2345}
1891 2346
1892/* 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 */
1893static void noinline ecb_cold 2348ecb_noinline ecb_cold
2349static void
1894fd_enomem (EV_P) 2350fd_enomem (EV_P)
1895{ 2351{
1896 int fd; 2352 int fd;
1897 2353
1898 for (fd = anfdmax; fd--; ) 2354 for (fd = anfdmax; fd--; )
… …
1902 break; 2358 break;
1903 } 2359 }
1904} 2360}
1905 2361
1906/* 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 */
1907static void noinline 2363ecb_noinline
2364static void
1908fd_rearm_all (EV_P) 2365fd_rearm_all (EV_P)
1909{ 2366{
1910 int fd; 2367 int fd;
1911 2368
1912 for (fd = 0; fd < anfdmax; ++fd) 2369 for (fd = 0; fd < anfdmax; ++fd)
… …
1965 ev_tstamp minat; 2422 ev_tstamp minat;
1966 ANHE *minpos; 2423 ANHE *minpos;
1967 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2424 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1968 2425
1969 /* find minimum child */ 2426 /* find minimum child */
1970 if (expect_true (pos + DHEAP - 1 < E)) 2427 if (ecb_expect_true (pos + DHEAP - 1 < E))
1971 { 2428 {
1972 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2429 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1973 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));
1974 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));
1975 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));
1976 } 2433 }
1977 else if (pos < E) 2434 else if (pos < E)
1978 { 2435 {
1979 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2436 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1980 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2437 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1981 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2438 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1982 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2439 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1983 } 2440 }
1984 else 2441 else
1985 break; 2442 break;
1986 2443
1987 if (ANHE_at (he) <= minat) 2444 if (ANHE_at (he) <= minat)
… …
1995 2452
1996 heap [k] = he; 2453 heap [k] = he;
1997 ev_active (ANHE_w (he)) = k; 2454 ev_active (ANHE_w (he)) = k;
1998} 2455}
1999 2456
2000#else /* 4HEAP */ 2457#else /* not 4HEAP */
2001 2458
2002#define HEAP0 1 2459#define HEAP0 1
2003#define HPARENT(k) ((k) >> 1) 2460#define HPARENT(k) ((k) >> 1)
2004#define UPHEAP_DONE(p,k) (!(p)) 2461#define UPHEAP_DONE(p,k) (!(p))
2005 2462
… …
2093 2550
2094/*****************************************************************************/ 2551/*****************************************************************************/
2095 2552
2096#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2097 2554
2098static void noinline ecb_cold 2555ecb_noinline ecb_cold
2556static void
2099evpipe_init (EV_P) 2557evpipe_init (EV_P)
2100{ 2558{
2101 if (!ev_is_active (&pipe_w)) 2559 if (!ev_is_active (&pipe_w))
2102 { 2560 {
2103 int fds [2]; 2561 int fds [2];
… …
2143inline_speed void 2601inline_speed void
2144evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2602evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2145{ 2603{
2146 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 */
2147 2605
2148 if (expect_true (*flag)) 2606 if (ecb_expect_true (*flag))
2149 return; 2607 return;
2150 2608
2151 *flag = 1; 2609 *flag = 1;
2152 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 */
2153 2611
… …
2174#endif 2632#endif
2175 { 2633 {
2176#ifdef _WIN32 2634#ifdef _WIN32
2177 WSABUF buf; 2635 WSABUF buf;
2178 DWORD sent; 2636 DWORD sent;
2179 buf.buf = &buf; 2637 buf.buf = (char *)&buf;
2180 buf.len = 1; 2638 buf.len = 1;
2181 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);
2182#else 2640#else
2183 write (evpipe [1], &(evpipe [1]), 1); 2641 write (evpipe [1], &(evpipe [1]), 1);
2184#endif 2642#endif
… …
2230 sig_pending = 0; 2688 sig_pending = 0;
2231 2689
2232 ECB_MEMORY_FENCE; 2690 ECB_MEMORY_FENCE;
2233 2691
2234 for (i = EV_NSIG - 1; i--; ) 2692 for (i = EV_NSIG - 1; i--; )
2235 if (expect_false (signals [i].pending)) 2693 if (ecb_expect_false (signals [i].pending))
2236 ev_feed_signal_event (EV_A_ i + 1); 2694 ev_feed_signal_event (EV_A_ i + 1);
2237 } 2695 }
2238#endif 2696#endif
2239 2697
2240#if EV_ASYNC_ENABLE 2698#if EV_ASYNC_ENABLE
… …
2256} 2714}
2257 2715
2258/*****************************************************************************/ 2716/*****************************************************************************/
2259 2717
2260void 2718void
2261ev_feed_signal (int signum) EV_THROW 2719ev_feed_signal (int signum) EV_NOEXCEPT
2262{ 2720{
2263#if EV_MULTIPLICITY 2721#if EV_MULTIPLICITY
2264 EV_P; 2722 EV_P;
2265 ECB_MEMORY_FENCE_ACQUIRE; 2723 ECB_MEMORY_FENCE_ACQUIRE;
2266 EV_A = signals [signum - 1].loop; 2724 EV_A = signals [signum - 1].loop;
… …
2281#endif 2739#endif
2282 2740
2283 ev_feed_signal (signum); 2741 ev_feed_signal (signum);
2284} 2742}
2285 2743
2286void noinline 2744ecb_noinline
2745void
2287ev_feed_signal_event (EV_P_ int signum) EV_THROW 2746ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2288{ 2747{
2289 WL w; 2748 WL w;
2290 2749
2291 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2750 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2292 return; 2751 return;
2293 2752
2294 --signum; 2753 --signum;
2295 2754
2296#if EV_MULTIPLICITY 2755#if EV_MULTIPLICITY
2297 /* 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 */
2298 /* or, likely more useful, feeding a signal nobody is waiting for */ 2757 /* or, likely more useful, feeding a signal nobody is waiting for */
2299 2758
2300 if (expect_false (signals [signum].loop != EV_A)) 2759 if (ecb_expect_false (signals [signum].loop != EV_A))
2301 return; 2760 return;
2302#endif 2761#endif
2303 2762
2304 signals [signum].pending = 0; 2763 signals [signum].pending = 0;
2305 ECB_MEMORY_FENCE_RELEASE; 2764 ECB_MEMORY_FENCE_RELEASE;
… …
2401# include "ev_kqueue.c" 2860# include "ev_kqueue.c"
2402#endif 2861#endif
2403#if EV_USE_EPOLL 2862#if EV_USE_EPOLL
2404# include "ev_epoll.c" 2863# include "ev_epoll.c"
2405#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
2406#if EV_USE_POLL 2871#if EV_USE_POLL
2407# include "ev_poll.c" 2872# include "ev_poll.c"
2408#endif 2873#endif
2409#if EV_USE_SELECT 2874#if EV_USE_SELECT
2410# include "ev_select.c" 2875# include "ev_select.c"
2411#endif 2876#endif
2412 2877
2413int ecb_cold 2878ecb_cold int
2414ev_version_major (void) EV_THROW 2879ev_version_major (void) EV_NOEXCEPT
2415{ 2880{
2416 return EV_VERSION_MAJOR; 2881 return EV_VERSION_MAJOR;
2417} 2882}
2418 2883
2419int ecb_cold 2884ecb_cold int
2420ev_version_minor (void) EV_THROW 2885ev_version_minor (void) EV_NOEXCEPT
2421{ 2886{
2422 return EV_VERSION_MINOR; 2887 return EV_VERSION_MINOR;
2423} 2888}
2424 2889
2425/* 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 */
2426int inline_size ecb_cold 2891inline_size ecb_cold int
2427enable_secure (void) 2892enable_secure (void)
2428{ 2893{
2429#ifdef _WIN32 2894#ifdef _WIN32
2430 return 0; 2895 return 0;
2431#else 2896#else
2432 return getuid () != geteuid () 2897 return getuid () != geteuid ()
2433 || getgid () != getegid (); 2898 || getgid () != getegid ();
2434#endif 2899#endif
2435} 2900}
2436 2901
2437unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2438ev_supported_backends (void) EV_THROW 2904ev_supported_backends (void) EV_NOEXCEPT
2439{ 2905{
2440 unsigned int flags = 0; 2906 unsigned int flags = 0;
2441 2907
2442 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2908 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2443 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2909 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2444 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;
2445 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2913 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2446 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2914 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2447 2915
2448 return flags; 2916 return flags;
2449} 2917}
2450 2918
2451unsigned int ecb_cold 2919ecb_cold
2920unsigned int
2452ev_recommended_backends (void) EV_THROW 2921ev_recommended_backends (void) EV_NOEXCEPT
2453{ 2922{
2454 unsigned int flags = ev_supported_backends (); 2923 unsigned int flags = ev_supported_backends ();
2455 2924
2456#ifndef __NetBSD__ 2925#ifndef __NetBSD__
2457 /* kqueue is borked on everything but netbsd apparently */ 2926 /* kqueue is borked on everything but netbsd apparently */
… …
2465#endif 2934#endif
2466#ifdef __FreeBSD__ 2935#ifdef __FreeBSD__
2467 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) */
2468#endif 2937#endif
2469 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
2470 return flags; 2948 return flags;
2471} 2949}
2472 2950
2473unsigned int ecb_cold 2951ecb_cold
2952unsigned int
2474ev_embeddable_backends (void) EV_THROW 2953ev_embeddable_backends (void) EV_NOEXCEPT
2475{ 2954{
2476 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2955 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2477 2956
2478 /* 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 */
2479 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 */
2480 flags &= ~EVBACKEND_EPOLL; 2959 flags &= ~EVBACKEND_EPOLL;
2481 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
2482 return flags; 2968 return flags;
2483} 2969}
2484 2970
2485unsigned int 2971unsigned int
2486ev_backend (EV_P) EV_THROW 2972ev_backend (EV_P) EV_NOEXCEPT
2487{ 2973{
2488 return backend; 2974 return backend;
2489} 2975}
2490 2976
2491#if EV_FEATURE_API 2977#if EV_FEATURE_API
2492unsigned int 2978unsigned int
2493ev_iteration (EV_P) EV_THROW 2979ev_iteration (EV_P) EV_NOEXCEPT
2494{ 2980{
2495 return loop_count; 2981 return loop_count;
2496} 2982}
2497 2983
2498unsigned int 2984unsigned int
2499ev_depth (EV_P) EV_THROW 2985ev_depth (EV_P) EV_NOEXCEPT
2500{ 2986{
2501 return loop_depth; 2987 return loop_depth;
2502} 2988}
2503 2989
2504void 2990void
2505ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2991ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2506{ 2992{
2507 io_blocktime = interval; 2993 io_blocktime = interval;
2508} 2994}
2509 2995
2510void 2996void
2511ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2997ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2512{ 2998{
2513 timeout_blocktime = interval; 2999 timeout_blocktime = interval;
2514} 3000}
2515 3001
2516void 3002void
2517ev_set_userdata (EV_P_ void *data) EV_THROW 3003ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2518{ 3004{
2519 userdata = data; 3005 userdata = data;
2520} 3006}
2521 3007
2522void * 3008void *
2523ev_userdata (EV_P) EV_THROW 3009ev_userdata (EV_P) EV_NOEXCEPT
2524{ 3010{
2525 return userdata; 3011 return userdata;
2526} 3012}
2527 3013
2528void 3014void
2529ev_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
2530{ 3016{
2531 invoke_cb = invoke_pending_cb; 3017 invoke_cb = invoke_pending_cb;
2532} 3018}
2533 3019
2534void 3020void
2535ev_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
2536{ 3022{
2537 release_cb = release; 3023 release_cb = release;
2538 acquire_cb = acquire; 3024 acquire_cb = acquire;
2539} 3025}
2540#endif 3026#endif
2541 3027
2542/* initialise a loop structure, must be zero-initialised */ 3028/* initialise a loop structure, must be zero-initialised */
2543static void noinline ecb_cold 3029ecb_noinline ecb_cold
3030static void
2544loop_init (EV_P_ unsigned int flags) EV_THROW 3031loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2545{ 3032{
2546 if (!backend) 3033 if (!backend)
2547 { 3034 {
2548 origflags = flags; 3035 origflags = flags;
2549 3036
… …
2607 3094
2608 if (!(flags & EVBACKEND_MASK)) 3095 if (!(flags & EVBACKEND_MASK))
2609 flags |= ev_recommended_backends (); 3096 flags |= ev_recommended_backends ();
2610 3097
2611#if EV_USE_IOCP 3098#if EV_USE_IOCP
2612 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3099 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2613#endif 3100#endif
2614#if EV_USE_PORT 3101#if EV_USE_PORT
2615 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3102 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2616#endif 3103#endif
2617#if EV_USE_KQUEUE 3104#if EV_USE_KQUEUE
2618 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);
2619#endif 3112#endif
2620#if EV_USE_EPOLL 3113#if EV_USE_EPOLL
2621 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3114 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2622#endif 3115#endif
2623#if EV_USE_POLL 3116#if EV_USE_POLL
2624 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3117 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2625#endif 3118#endif
2626#if EV_USE_SELECT 3119#if EV_USE_SELECT
2627 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3120 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2628#endif 3121#endif
2629 3122
2630 ev_prepare_init (&pending_w, pendingcb); 3123 ev_prepare_init (&pending_w, pendingcb);
2631 3124
2632#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3125#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2635#endif 3128#endif
2636 } 3129 }
2637} 3130}
2638 3131
2639/* free up a loop structure */ 3132/* free up a loop structure */
2640void ecb_cold 3133ecb_cold
3134void
2641ev_loop_destroy (EV_P) 3135ev_loop_destroy (EV_P)
2642{ 3136{
2643 int i; 3137 int i;
2644 3138
2645#if EV_MULTIPLICITY 3139#if EV_MULTIPLICITY
… …
2648 return; 3142 return;
2649#endif 3143#endif
2650 3144
2651#if EV_CLEANUP_ENABLE 3145#if EV_CLEANUP_ENABLE
2652 /* queue cleanup watchers (and execute them) */ 3146 /* queue cleanup watchers (and execute them) */
2653 if (expect_false (cleanupcnt)) 3147 if (ecb_expect_false (cleanupcnt))
2654 { 3148 {
2655 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3149 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2656 EV_INVOKE_PENDING; 3150 EV_INVOKE_PENDING;
2657 } 3151 }
2658#endif 3152#endif
… …
2686 3180
2687 if (backend_fd >= 0) 3181 if (backend_fd >= 0)
2688 close (backend_fd); 3182 close (backend_fd);
2689 3183
2690#if EV_USE_IOCP 3184#if EV_USE_IOCP
2691 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3185 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2692#endif 3186#endif
2693#if EV_USE_PORT 3187#if EV_USE_PORT
2694 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3188 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2695#endif 3189#endif
2696#if EV_USE_KQUEUE 3190#if EV_USE_KQUEUE
2697 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);
2698#endif 3198#endif
2699#if EV_USE_EPOLL 3199#if EV_USE_EPOLL
2700 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3200 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2701#endif 3201#endif
2702#if EV_USE_POLL 3202#if EV_USE_POLL
2703 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3203 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2704#endif 3204#endif
2705#if EV_USE_SELECT 3205#if EV_USE_SELECT
2706 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3206 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2707#endif 3207#endif
2708 3208
2709 for (i = NUMPRI; i--; ) 3209 for (i = NUMPRI; i--; )
2710 { 3210 {
2711 array_free (pending, [i]); 3211 array_free (pending, [i]);
… …
2753 3253
2754inline_size void 3254inline_size void
2755loop_fork (EV_P) 3255loop_fork (EV_P)
2756{ 3256{
2757#if EV_USE_PORT 3257#if EV_USE_PORT
2758 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3258 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2759#endif 3259#endif
2760#if EV_USE_KQUEUE 3260#if EV_USE_KQUEUE
2761 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);
2762#endif 3268#endif
2763#if EV_USE_EPOLL 3269#if EV_USE_EPOLL
2764 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3270 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2765#endif 3271#endif
2766#if EV_USE_INOTIFY 3272#if EV_USE_INOTIFY
2767 infy_fork (EV_A); 3273 infy_fork (EV_A);
2768#endif 3274#endif
2769 3275
2770#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3276#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2771 if (ev_is_active (&pipe_w)) 3277 if (ev_is_active (&pipe_w) && postfork != 2)
2772 { 3278 {
2773 /* 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 */
2774 3280
2775 ev_ref (EV_A); 3281 ev_ref (EV_A);
2776 ev_io_stop (EV_A_ &pipe_w); 3282 ev_io_stop (EV_A_ &pipe_w);
… …
2787 postfork = 0; 3293 postfork = 0;
2788} 3294}
2789 3295
2790#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
2791 3297
3298ecb_cold
2792struct ev_loop * ecb_cold 3299struct ev_loop *
2793ev_loop_new (unsigned int flags) EV_THROW 3300ev_loop_new (unsigned int flags) EV_NOEXCEPT
2794{ 3301{
2795 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3302 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2796 3303
2797 memset (EV_A, 0, sizeof (struct ev_loop)); 3304 memset (EV_A, 0, sizeof (struct ev_loop));
2798 loop_init (EV_A_ flags); 3305 loop_init (EV_A_ flags);
… …
2805} 3312}
2806 3313
2807#endif /* multiplicity */ 3314#endif /* multiplicity */
2808 3315
2809#if EV_VERIFY 3316#if EV_VERIFY
2810static void noinline ecb_cold 3317ecb_noinline ecb_cold
3318static void
2811verify_watcher (EV_P_ W w) 3319verify_watcher (EV_P_ W w)
2812{ 3320{
2813 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));
2814 3322
2815 if (w->pending) 3323 if (w->pending)
2816 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));
2817} 3325}
2818 3326
2819static void noinline ecb_cold 3327ecb_noinline ecb_cold
3328static void
2820verify_heap (EV_P_ ANHE *heap, int N) 3329verify_heap (EV_P_ ANHE *heap, int N)
2821{ 3330{
2822 int i; 3331 int i;
2823 3332
2824 for (i = HEAP0; i < N + HEAP0; ++i) 3333 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2829 3338
2830 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3339 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2831 } 3340 }
2832} 3341}
2833 3342
2834static void noinline ecb_cold 3343ecb_noinline ecb_cold
3344static void
2835array_verify (EV_P_ W *ws, int cnt) 3345array_verify (EV_P_ W *ws, int cnt)
2836{ 3346{
2837 while (cnt--) 3347 while (cnt--)
2838 { 3348 {
2839 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3349 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2842} 3352}
2843#endif 3353#endif
2844 3354
2845#if EV_FEATURE_API 3355#if EV_FEATURE_API
2846void ecb_cold 3356void ecb_cold
2847ev_verify (EV_P) EV_THROW 3357ev_verify (EV_P) EV_NOEXCEPT
2848{ 3358{
2849#if EV_VERIFY 3359#if EV_VERIFY
2850 int i; 3360 int i;
2851 WL w, w2; 3361 WL w, w2;
2852 3362
… …
2928#endif 3438#endif
2929} 3439}
2930#endif 3440#endif
2931 3441
2932#if EV_MULTIPLICITY 3442#if EV_MULTIPLICITY
3443ecb_cold
2933struct ev_loop * ecb_cold 3444struct ev_loop *
2934#else 3445#else
2935int 3446int
2936#endif 3447#endif
2937ev_default_loop (unsigned int flags) EV_THROW 3448ev_default_loop (unsigned int flags) EV_NOEXCEPT
2938{ 3449{
2939 if (!ev_default_loop_ptr) 3450 if (!ev_default_loop_ptr)
2940 { 3451 {
2941#if EV_MULTIPLICITY 3452#if EV_MULTIPLICITY
2942 EV_P = ev_default_loop_ptr = &default_loop_struct; 3453 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2961 3472
2962 return ev_default_loop_ptr; 3473 return ev_default_loop_ptr;
2963} 3474}
2964 3475
2965void 3476void
2966ev_loop_fork (EV_P) EV_THROW 3477ev_loop_fork (EV_P) EV_NOEXCEPT
2967{ 3478{
2968 postfork = 1; 3479 postfork = 1;
2969} 3480}
2970 3481
2971/*****************************************************************************/ 3482/*****************************************************************************/
… …
2975{ 3486{
2976 EV_CB_INVOKE ((W)w, revents); 3487 EV_CB_INVOKE ((W)w, revents);
2977} 3488}
2978 3489
2979unsigned int 3490unsigned int
2980ev_pending_count (EV_P) EV_THROW 3491ev_pending_count (EV_P) EV_NOEXCEPT
2981{ 3492{
2982 int pri; 3493 int pri;
2983 unsigned int count = 0; 3494 unsigned int count = 0;
2984 3495
2985 for (pri = NUMPRI; pri--; ) 3496 for (pri = NUMPRI; pri--; )
2986 count += pendingcnt [pri]; 3497 count += pendingcnt [pri];
2987 3498
2988 return count; 3499 return count;
2989} 3500}
2990 3501
2991void noinline 3502ecb_noinline
3503void
2992ev_invoke_pending (EV_P) 3504ev_invoke_pending (EV_P)
2993{ 3505{
2994 pendingpri = NUMPRI; 3506 pendingpri = NUMPRI;
2995 3507
2996 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3508 do
2997 { 3509 {
2998 --pendingpri; 3510 --pendingpri;
2999 3511
3512 /* pendingpri possibly gets modified in the inner loop */
3000 while (pendingcnt [pendingpri]) 3513 while (pendingcnt [pendingpri])
3001 { 3514 {
3002 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3515 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3003 3516
3004 p->w->pending = 0; 3517 p->w->pending = 0;
3005 EV_CB_INVOKE (p->w, p->events); 3518 EV_CB_INVOKE (p->w, p->events);
3006 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
3007 } 3520 }
3008 } 3521 }
3522 while (pendingpri);
3009} 3523}
3010 3524
3011#if EV_IDLE_ENABLE 3525#if EV_IDLE_ENABLE
3012/* make idle watchers pending. this handles the "call-idle */ 3526/* make idle watchers pending. this handles the "call-idle */
3013/* only when higher priorities are idle" logic */ 3527/* only when higher priorities are idle" logic */
3014inline_size void 3528inline_size void
3015idle_reify (EV_P) 3529idle_reify (EV_P)
3016{ 3530{
3017 if (expect_false (idleall)) 3531 if (ecb_expect_false (idleall))
3018 { 3532 {
3019 int pri; 3533 int pri;
3020 3534
3021 for (pri = NUMPRI; pri--; ) 3535 for (pri = NUMPRI; pri--; )
3022 { 3536 {
… …
3052 { 3566 {
3053 ev_at (w) += w->repeat; 3567 ev_at (w) += w->repeat;
3054 if (ev_at (w) < mn_now) 3568 if (ev_at (w) < mn_now)
3055 ev_at (w) = mn_now; 3569 ev_at (w) = mn_now;
3056 3570
3057 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.)));
3058 3572
3059 ANHE_at_cache (timers [HEAP0]); 3573 ANHE_at_cache (timers [HEAP0]);
3060 downheap (timers, timercnt, HEAP0); 3574 downheap (timers, timercnt, HEAP0);
3061 } 3575 }
3062 else 3576 else
… …
3071 } 3585 }
3072} 3586}
3073 3587
3074#if EV_PERIODIC_ENABLE 3588#if EV_PERIODIC_ENABLE
3075 3589
3076static void noinline 3590ecb_noinline
3591static void
3077periodic_recalc (EV_P_ ev_periodic *w) 3592periodic_recalc (EV_P_ ev_periodic *w)
3078{ 3593{
3079 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3594 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3080 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3595 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3081 3596
… …
3083 while (at <= ev_rt_now) 3598 while (at <= ev_rt_now)
3084 { 3599 {
3085 ev_tstamp nat = at + w->interval; 3600 ev_tstamp nat = at + w->interval;
3086 3601
3087 /* when resolution fails us, we use ev_rt_now */ 3602 /* when resolution fails us, we use ev_rt_now */
3088 if (expect_false (nat == at)) 3603 if (ecb_expect_false (nat == at))
3089 { 3604 {
3090 at = ev_rt_now; 3605 at = ev_rt_now;
3091 break; 3606 break;
3092 } 3607 }
3093 3608
… …
3139 } 3654 }
3140} 3655}
3141 3656
3142/* simply recalculate all periodics */ 3657/* simply recalculate all periodics */
3143/* 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? */
3144static void noinline ecb_cold 3659ecb_noinline ecb_cold
3660static void
3145periodics_reschedule (EV_P) 3661periodics_reschedule (EV_P)
3146{ 3662{
3147 int i; 3663 int i;
3148 3664
3149 /* adjust periodics after time jump */ 3665 /* adjust periodics after time jump */
… …
3162 reheap (periodics, periodiccnt); 3678 reheap (periodics, periodiccnt);
3163} 3679}
3164#endif 3680#endif
3165 3681
3166/* adjust all timers by a given offset */ 3682/* adjust all timers by a given offset */
3167static void noinline ecb_cold 3683ecb_noinline ecb_cold
3684static void
3168timers_reschedule (EV_P_ ev_tstamp adjust) 3685timers_reschedule (EV_P_ ev_tstamp adjust)
3169{ 3686{
3170 int i; 3687 int i;
3171 3688
3172 for (i = 0; i < timercnt; ++i) 3689 for (i = 0; i < timercnt; ++i)
… …
3181/* also detect if there was a timejump, and act accordingly */ 3698/* also detect if there was a timejump, and act accordingly */
3182inline_speed void 3699inline_speed void
3183time_update (EV_P_ ev_tstamp max_block) 3700time_update (EV_P_ ev_tstamp max_block)
3184{ 3701{
3185#if EV_USE_MONOTONIC 3702#if EV_USE_MONOTONIC
3186 if (expect_true (have_monotonic)) 3703 if (ecb_expect_true (have_monotonic))
3187 { 3704 {
3188 int i; 3705 int i;
3189 ev_tstamp odiff = rtmn_diff; 3706 ev_tstamp odiff = rtmn_diff;
3190 3707
3191 mn_now = get_clock (); 3708 mn_now = get_clock ();
3192 3709
3193 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3710 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3194 /* interpolate in the meantime */ 3711 /* interpolate in the meantime */
3195 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)))
3196 { 3713 {
3197 ev_rt_now = rtmn_diff + mn_now; 3714 ev_rt_now = rtmn_diff + mn_now;
3198 return; 3715 return;
3199 } 3716 }
3200 3717
… …
3214 ev_tstamp diff; 3731 ev_tstamp diff;
3215 rtmn_diff = ev_rt_now - mn_now; 3732 rtmn_diff = ev_rt_now - mn_now;
3216 3733
3217 diff = odiff - rtmn_diff; 3734 diff = odiff - rtmn_diff;
3218 3735
3219 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)))
3220 return; /* all is well */ 3737 return; /* all is well */
3221 3738
3222 ev_rt_now = ev_time (); 3739 ev_rt_now = ev_time ();
3223 mn_now = get_clock (); 3740 mn_now = get_clock ();
3224 now_floor = mn_now; 3741 now_floor = mn_now;
… …
3233 else 3750 else
3234#endif 3751#endif
3235 { 3752 {
3236 ev_rt_now = ev_time (); 3753 ev_rt_now = ev_time ();
3237 3754
3238 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)))
3239 { 3756 {
3240 /* 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 */
3241 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3758 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3242#if EV_PERIODIC_ENABLE 3759#if EV_PERIODIC_ENABLE
3243 periodics_reschedule (EV_A); 3760 periodics_reschedule (EV_A);
… …
3266#if EV_VERIFY >= 2 3783#if EV_VERIFY >= 2
3267 ev_verify (EV_A); 3784 ev_verify (EV_A);
3268#endif 3785#endif
3269 3786
3270#ifndef _WIN32 3787#ifndef _WIN32
3271 if (expect_false (curpid)) /* penalise the forking check even more */ 3788 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3272 if (expect_false (getpid () != curpid)) 3789 if (ecb_expect_false (getpid () != curpid))
3273 { 3790 {
3274 curpid = getpid (); 3791 curpid = getpid ();
3275 postfork = 1; 3792 postfork = 1;
3276 } 3793 }
3277#endif 3794#endif
3278 3795
3279#if EV_FORK_ENABLE 3796#if EV_FORK_ENABLE
3280 /* we might have forked, so queue fork handlers */ 3797 /* we might have forked, so queue fork handlers */
3281 if (expect_false (postfork)) 3798 if (ecb_expect_false (postfork))
3282 if (forkcnt) 3799 if (forkcnt)
3283 { 3800 {
3284 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3801 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3285 EV_INVOKE_PENDING; 3802 EV_INVOKE_PENDING;
3286 } 3803 }
3287#endif 3804#endif
3288 3805
3289#if EV_PREPARE_ENABLE 3806#if EV_PREPARE_ENABLE
3290 /* queue prepare watchers (and execute them) */ 3807 /* queue prepare watchers (and execute them) */
3291 if (expect_false (preparecnt)) 3808 if (ecb_expect_false (preparecnt))
3292 { 3809 {
3293 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3810 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3294 EV_INVOKE_PENDING; 3811 EV_INVOKE_PENDING;
3295 } 3812 }
3296#endif 3813#endif
3297 3814
3298 if (expect_false (loop_done)) 3815 if (ecb_expect_false (loop_done))
3299 break; 3816 break;
3300 3817
3301 /* we might have forked, so reify kernel state if necessary */ 3818 /* we might have forked, so reify kernel state if necessary */
3302 if (expect_false (postfork)) 3819 if (ecb_expect_false (postfork))
3303 loop_fork (EV_A); 3820 loop_fork (EV_A);
3304 3821
3305 /* update fd-related kernel structures */ 3822 /* update fd-related kernel structures */
3306 fd_reify (EV_A); 3823 fd_reify (EV_A);
3307 3824
… …
3312 3829
3313 /* remember old timestamp for io_blocktime calculation */ 3830 /* remember old timestamp for io_blocktime calculation */
3314 ev_tstamp prev_mn_now = mn_now; 3831 ev_tstamp prev_mn_now = mn_now;
3315 3832
3316 /* update time to cancel out callback processing overhead */ 3833 /* update time to cancel out callback processing overhead */
3317 time_update (EV_A_ 1e100); 3834 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3318 3835
3319 /* from now on, we want a pipe-wake-up */ 3836 /* from now on, we want a pipe-wake-up */
3320 pipe_write_wanted = 1; 3837 pipe_write_wanted = 1;
3321 3838
3322 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 */
3323 3840
3324 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3841 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3325 { 3842 {
3326 waittime = MAX_BLOCKTIME; 3843 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3327 3844
3328 if (timercnt) 3845 if (timercnt)
3329 { 3846 {
3330 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3847 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3331 if (waittime > to) waittime = to; 3848 if (waittime > to) waittime = to;
… …
3338 if (waittime > to) waittime = to; 3855 if (waittime > to) waittime = to;
3339 } 3856 }
3340#endif 3857#endif
3341 3858
3342 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3859 /* don't let timeouts decrease the waittime below timeout_blocktime */
3343 if (expect_false (waittime < timeout_blocktime)) 3860 if (ecb_expect_false (waittime < timeout_blocktime))
3344 waittime = timeout_blocktime; 3861 waittime = timeout_blocktime;
3345 3862
3346 /* at this point, we NEED to wait, so we have to ensure */ 3863 /* now there are two more special cases left, either we have
3347 /* to pass a minimum nonzero value to the backend */ 3864 * already-expired timers, so we should not sleep, or we have timers
3865 * that expire very soon, in which case we need to weait for a minimum
3866 * amount of time for some event loop backends
3867 */
3348 if (expect_false (waittime < backend_mintime)) 3868 if (ecb_expect_false (waittime < backend_mintime))
3869 waittime = waittime <= EV_TS_CONST (0.)
3870 ? EV_TS_CONST (0.)
3349 waittime = backend_mintime; 3871 : backend_mintime;
3350 3872
3351 /* extra check because io_blocktime is commonly 0 */ 3873 /* extra check because io_blocktime is commonly 0 */
3352 if (expect_false (io_blocktime)) 3874 if (ecb_expect_false (io_blocktime))
3353 { 3875 {
3354 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3876 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3355 3877
3356 if (sleeptime > waittime - backend_mintime) 3878 if (sleeptime > waittime - backend_mintime)
3357 sleeptime = waittime - backend_mintime; 3879 sleeptime = waittime - backend_mintime;
3358 3880
3359 if (expect_true (sleeptime > 0.)) 3881 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3360 { 3882 {
3361 ev_sleep (sleeptime); 3883 ev_sleep (sleeptime);
3362 waittime -= sleeptime; 3884 waittime -= sleeptime;
3363 } 3885 }
3364 } 3886 }
… …
3378 { 3900 {
3379 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3901 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3380 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3902 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3381 } 3903 }
3382 3904
3383
3384 /* update ev_rt_now, do magic */ 3905 /* update ev_rt_now, do magic */
3385 time_update (EV_A_ waittime + sleeptime); 3906 time_update (EV_A_ waittime + sleeptime);
3386 } 3907 }
3387 3908
3388 /* queue pending timers and reschedule them */ 3909 /* queue pending timers and reschedule them */
… …
3396 idle_reify (EV_A); 3917 idle_reify (EV_A);
3397#endif 3918#endif
3398 3919
3399#if EV_CHECK_ENABLE 3920#if EV_CHECK_ENABLE
3400 /* queue check watchers, to be executed first */ 3921 /* queue check watchers, to be executed first */
3401 if (expect_false (checkcnt)) 3922 if (ecb_expect_false (checkcnt))
3402 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3923 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3403#endif 3924#endif
3404 3925
3405 EV_INVOKE_PENDING; 3926 EV_INVOKE_PENDING;
3406 } 3927 }
3407 while (expect_true ( 3928 while (ecb_expect_true (
3408 activecnt 3929 activecnt
3409 && !loop_done 3930 && !loop_done
3410 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3931 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3411 )); 3932 ));
3412 3933
… …
3419 3940
3420 return activecnt; 3941 return activecnt;
3421} 3942}
3422 3943
3423void 3944void
3424ev_break (EV_P_ int how) EV_THROW 3945ev_break (EV_P_ int how) EV_NOEXCEPT
3425{ 3946{
3426 loop_done = how; 3947 loop_done = how;
3427} 3948}
3428 3949
3429void 3950void
3430ev_ref (EV_P) EV_THROW 3951ev_ref (EV_P) EV_NOEXCEPT
3431{ 3952{
3432 ++activecnt; 3953 ++activecnt;
3433} 3954}
3434 3955
3435void 3956void
3436ev_unref (EV_P) EV_THROW 3957ev_unref (EV_P) EV_NOEXCEPT
3437{ 3958{
3438 --activecnt; 3959 --activecnt;
3439} 3960}
3440 3961
3441void 3962void
3442ev_now_update (EV_P) EV_THROW 3963ev_now_update (EV_P) EV_NOEXCEPT
3443{ 3964{
3444 time_update (EV_A_ 1e100); 3965 time_update (EV_A_ EV_TSTAMP_HUGE);
3445} 3966}
3446 3967
3447void 3968void
3448ev_suspend (EV_P) EV_THROW 3969ev_suspend (EV_P) EV_NOEXCEPT
3449{ 3970{
3450 ev_now_update (EV_A); 3971 ev_now_update (EV_A);
3451} 3972}
3452 3973
3453void 3974void
3454ev_resume (EV_P) EV_THROW 3975ev_resume (EV_P) EV_NOEXCEPT
3455{ 3976{
3456 ev_tstamp mn_prev = mn_now; 3977 ev_tstamp mn_prev = mn_now;
3457 3978
3458 ev_now_update (EV_A); 3979 ev_now_update (EV_A);
3459 timers_reschedule (EV_A_ mn_now - mn_prev); 3980 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3476inline_size void 3997inline_size void
3477wlist_del (WL *head, WL elem) 3998wlist_del (WL *head, WL elem)
3478{ 3999{
3479 while (*head) 4000 while (*head)
3480 { 4001 {
3481 if (expect_true (*head == elem)) 4002 if (ecb_expect_true (*head == elem))
3482 { 4003 {
3483 *head = elem->next; 4004 *head = elem->next;
3484 break; 4005 break;
3485 } 4006 }
3486 4007
… …
3498 w->pending = 0; 4019 w->pending = 0;
3499 } 4020 }
3500} 4021}
3501 4022
3502int 4023int
3503ev_clear_pending (EV_P_ void *w) EV_THROW 4024ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3504{ 4025{
3505 W w_ = (W)w; 4026 W w_ = (W)w;
3506 int pending = w_->pending; 4027 int pending = w_->pending;
3507 4028
3508 if (expect_true (pending)) 4029 if (ecb_expect_true (pending))
3509 { 4030 {
3510 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4031 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3511 p->w = (W)&pending_w; 4032 p->w = (W)&pending_w;
3512 w_->pending = 0; 4033 w_->pending = 0;
3513 return p->events; 4034 return p->events;
… …
3540 w->active = 0; 4061 w->active = 0;
3541} 4062}
3542 4063
3543/*****************************************************************************/ 4064/*****************************************************************************/
3544 4065
3545void noinline 4066ecb_noinline
4067void
3546ev_io_start (EV_P_ ev_io *w) EV_THROW 4068ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3547{ 4069{
3548 int fd = w->fd; 4070 int fd = w->fd;
3549 4071
3550 if (expect_false (ev_is_active (w))) 4072 if (ecb_expect_false (ev_is_active (w)))
3551 return; 4073 return;
3552 4074
3553 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4075 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3554 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4076 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3555 4077
4078#if EV_VERIFY >= 2
4079 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4080#endif
3556 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3557 4082
3558 ev_start (EV_A_ (W)w, 1); 4083 ev_start (EV_A_ (W)w, 1);
3559 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4084 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3560 wlist_add (&anfds[fd].head, (WL)w); 4085 wlist_add (&anfds[fd].head, (WL)w);
3561 4086
3562 /* common bug, apparently */ 4087 /* common bug, apparently */
3563 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4088 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3564 4089
… …
3566 w->events &= ~EV__IOFDSET; 4091 w->events &= ~EV__IOFDSET;
3567 4092
3568 EV_FREQUENT_CHECK; 4093 EV_FREQUENT_CHECK;
3569} 4094}
3570 4095
3571void noinline 4096ecb_noinline
4097void
3572ev_io_stop (EV_P_ ev_io *w) EV_THROW 4098ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3573{ 4099{
3574 clear_pending (EV_A_ (W)w); 4100 clear_pending (EV_A_ (W)w);
3575 if (expect_false (!ev_is_active (w))) 4101 if (ecb_expect_false (!ev_is_active (w)))
3576 return; 4102 return;
3577 4103
3578 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4104 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3579 4105
4106#if EV_VERIFY >= 2
4107 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4108#endif
3580 EV_FREQUENT_CHECK; 4109 EV_FREQUENT_CHECK;
3581 4110
3582 wlist_del (&anfds[w->fd].head, (WL)w); 4111 wlist_del (&anfds[w->fd].head, (WL)w);
3583 ev_stop (EV_A_ (W)w); 4112 ev_stop (EV_A_ (W)w);
3584 4113
3585 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4114 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3586 4115
3587 EV_FREQUENT_CHECK; 4116 EV_FREQUENT_CHECK;
3588} 4117}
3589 4118
3590void noinline 4119ecb_noinline
4120void
3591ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4121ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3592{ 4122{
3593 if (expect_false (ev_is_active (w))) 4123 if (ecb_expect_false (ev_is_active (w)))
3594 return; 4124 return;
3595 4125
3596 ev_at (w) += mn_now; 4126 ev_at (w) += mn_now;
3597 4127
3598 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4128 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3599 4129
3600 EV_FREQUENT_CHECK; 4130 EV_FREQUENT_CHECK;
3601 4131
3602 ++timercnt; 4132 ++timercnt;
3603 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4133 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3604 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4134 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3605 ANHE_w (timers [ev_active (w)]) = (WT)w; 4135 ANHE_w (timers [ev_active (w)]) = (WT)w;
3606 ANHE_at_cache (timers [ev_active (w)]); 4136 ANHE_at_cache (timers [ev_active (w)]);
3607 upheap (timers, ev_active (w)); 4137 upheap (timers, ev_active (w));
3608 4138
3609 EV_FREQUENT_CHECK; 4139 EV_FREQUENT_CHECK;
3610 4140
3611 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4141 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3612} 4142}
3613 4143
3614void noinline 4144ecb_noinline
4145void
3615ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4146ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3616{ 4147{
3617 clear_pending (EV_A_ (W)w); 4148 clear_pending (EV_A_ (W)w);
3618 if (expect_false (!ev_is_active (w))) 4149 if (ecb_expect_false (!ev_is_active (w)))
3619 return; 4150 return;
3620 4151
3621 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
3622 4153
3623 { 4154 {
… …
3625 4156
3626 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4157 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3627 4158
3628 --timercnt; 4159 --timercnt;
3629 4160
3630 if (expect_true (active < timercnt + HEAP0)) 4161 if (ecb_expect_true (active < timercnt + HEAP0))
3631 { 4162 {
3632 timers [active] = timers [timercnt + HEAP0]; 4163 timers [active] = timers [timercnt + HEAP0];
3633 adjustheap (timers, timercnt, active); 4164 adjustheap (timers, timercnt, active);
3634 } 4165 }
3635 } 4166 }
… …
3639 ev_stop (EV_A_ (W)w); 4170 ev_stop (EV_A_ (W)w);
3640 4171
3641 EV_FREQUENT_CHECK; 4172 EV_FREQUENT_CHECK;
3642} 4173}
3643 4174
3644void noinline 4175ecb_noinline
4176void
3645ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4177ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3646{ 4178{
3647 EV_FREQUENT_CHECK; 4179 EV_FREQUENT_CHECK;
3648 4180
3649 clear_pending (EV_A_ (W)w); 4181 clear_pending (EV_A_ (W)w);
3650 4182
… …
3667 4199
3668 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3669} 4201}
3670 4202
3671ev_tstamp 4203ev_tstamp
3672ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4204ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3673{ 4205{
3674 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4206 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3675} 4207}
3676 4208
3677#if EV_PERIODIC_ENABLE 4209#if EV_PERIODIC_ENABLE
3678void noinline 4210ecb_noinline
4211void
3679ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4212ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3680{ 4213{
3681 if (expect_false (ev_is_active (w))) 4214 if (ecb_expect_false (ev_is_active (w)))
3682 return; 4215 return;
3683 4216
3684 if (w->reschedule_cb) 4217 if (w->reschedule_cb)
3685 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4218 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3686 else if (w->interval) 4219 else if (w->interval)
… …
3693 4226
3694 EV_FREQUENT_CHECK; 4227 EV_FREQUENT_CHECK;
3695 4228
3696 ++periodiccnt; 4229 ++periodiccnt;
3697 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4230 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3698 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4231 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3699 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4232 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3700 ANHE_at_cache (periodics [ev_active (w)]); 4233 ANHE_at_cache (periodics [ev_active (w)]);
3701 upheap (periodics, ev_active (w)); 4234 upheap (periodics, ev_active (w));
3702 4235
3703 EV_FREQUENT_CHECK; 4236 EV_FREQUENT_CHECK;
3704 4237
3705 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4238 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3706} 4239}
3707 4240
3708void noinline 4241ecb_noinline
4242void
3709ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4243ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3710{ 4244{
3711 clear_pending (EV_A_ (W)w); 4245 clear_pending (EV_A_ (W)w);
3712 if (expect_false (!ev_is_active (w))) 4246 if (ecb_expect_false (!ev_is_active (w)))
3713 return; 4247 return;
3714 4248
3715 EV_FREQUENT_CHECK; 4249 EV_FREQUENT_CHECK;
3716 4250
3717 { 4251 {
… …
3719 4253
3720 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4254 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3721 4255
3722 --periodiccnt; 4256 --periodiccnt;
3723 4257
3724 if (expect_true (active < periodiccnt + HEAP0)) 4258 if (ecb_expect_true (active < periodiccnt + HEAP0))
3725 { 4259 {
3726 periodics [active] = periodics [periodiccnt + HEAP0]; 4260 periodics [active] = periodics [periodiccnt + HEAP0];
3727 adjustheap (periodics, periodiccnt, active); 4261 adjustheap (periodics, periodiccnt, active);
3728 } 4262 }
3729 } 4263 }
… …
3731 ev_stop (EV_A_ (W)w); 4265 ev_stop (EV_A_ (W)w);
3732 4266
3733 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3734} 4268}
3735 4269
3736void noinline 4270ecb_noinline
4271void
3737ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4272ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3738{ 4273{
3739 /* TODO: use adjustheap and recalculation */ 4274 /* TODO: use adjustheap and recalculation */
3740 ev_periodic_stop (EV_A_ w); 4275 ev_periodic_stop (EV_A_ w);
3741 ev_periodic_start (EV_A_ w); 4276 ev_periodic_start (EV_A_ w);
3742} 4277}
… …
3746# define SA_RESTART 0 4281# define SA_RESTART 0
3747#endif 4282#endif
3748 4283
3749#if EV_SIGNAL_ENABLE 4284#if EV_SIGNAL_ENABLE
3750 4285
3751void noinline 4286ecb_noinline
4287void
3752ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4288ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3753{ 4289{
3754 if (expect_false (ev_is_active (w))) 4290 if (ecb_expect_false (ev_is_active (w)))
3755 return; 4291 return;
3756 4292
3757 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4293 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3758 4294
3759#if EV_MULTIPLICITY 4295#if EV_MULTIPLICITY
… …
3828 } 4364 }
3829 4365
3830 EV_FREQUENT_CHECK; 4366 EV_FREQUENT_CHECK;
3831} 4367}
3832 4368
3833void noinline 4369ecb_noinline
4370void
3834ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4371ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3835{ 4372{
3836 clear_pending (EV_A_ (W)w); 4373 clear_pending (EV_A_ (W)w);
3837 if (expect_false (!ev_is_active (w))) 4374 if (ecb_expect_false (!ev_is_active (w)))
3838 return; 4375 return;
3839 4376
3840 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
3841 4378
3842 wlist_del (&signals [w->signum - 1].head, (WL)w); 4379 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3870#endif 4407#endif
3871 4408
3872#if EV_CHILD_ENABLE 4409#if EV_CHILD_ENABLE
3873 4410
3874void 4411void
3875ev_child_start (EV_P_ ev_child *w) EV_THROW 4412ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3876{ 4413{
3877#if EV_MULTIPLICITY 4414#if EV_MULTIPLICITY
3878 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4415 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3879#endif 4416#endif
3880 if (expect_false (ev_is_active (w))) 4417 if (ecb_expect_false (ev_is_active (w)))
3881 return; 4418 return;
3882 4419
3883 EV_FREQUENT_CHECK; 4420 EV_FREQUENT_CHECK;
3884 4421
3885 ev_start (EV_A_ (W)w, 1); 4422 ev_start (EV_A_ (W)w, 1);
… …
3887 4424
3888 EV_FREQUENT_CHECK; 4425 EV_FREQUENT_CHECK;
3889} 4426}
3890 4427
3891void 4428void
3892ev_child_stop (EV_P_ ev_child *w) EV_THROW 4429ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3893{ 4430{
3894 clear_pending (EV_A_ (W)w); 4431 clear_pending (EV_A_ (W)w);
3895 if (expect_false (!ev_is_active (w))) 4432 if (ecb_expect_false (!ev_is_active (w)))
3896 return; 4433 return;
3897 4434
3898 EV_FREQUENT_CHECK; 4435 EV_FREQUENT_CHECK;
3899 4436
3900 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4437 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3914 4451
3915#define DEF_STAT_INTERVAL 5.0074891 4452#define DEF_STAT_INTERVAL 5.0074891
3916#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4453#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3917#define MIN_STAT_INTERVAL 0.1074891 4454#define MIN_STAT_INTERVAL 0.1074891
3918 4455
3919static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4456ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3920 4457
3921#if EV_USE_INOTIFY 4458#if EV_USE_INOTIFY
3922 4459
3923/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4460/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3924# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4461# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3925 4462
3926static void noinline 4463ecb_noinline
4464static void
3927infy_add (EV_P_ ev_stat *w) 4465infy_add (EV_P_ ev_stat *w)
3928{ 4466{
3929 w->wd = inotify_add_watch (fs_fd, w->path, 4467 w->wd = inotify_add_watch (fs_fd, w->path,
3930 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4468 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3931 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4469 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3995 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4533 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3996 ev_timer_again (EV_A_ &w->timer); 4534 ev_timer_again (EV_A_ &w->timer);
3997 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4535 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3998} 4536}
3999 4537
4000static void noinline 4538ecb_noinline
4539static void
4001infy_del (EV_P_ ev_stat *w) 4540infy_del (EV_P_ ev_stat *w)
4002{ 4541{
4003 int slot; 4542 int slot;
4004 int wd = w->wd; 4543 int wd = w->wd;
4005 4544
… …
4012 4551
4013 /* remove this watcher, if others are watching it, they will rearm */ 4552 /* remove this watcher, if others are watching it, they will rearm */
4014 inotify_rm_watch (fs_fd, wd); 4553 inotify_rm_watch (fs_fd, wd);
4015} 4554}
4016 4555
4017static void noinline 4556ecb_noinline
4557static void
4018infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4558infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4019{ 4559{
4020 if (slot < 0) 4560 if (slot < 0)
4021 /* overflow, need to check for all hash slots */ 4561 /* overflow, need to check for all hash slots */
4022 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4562 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4058 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4598 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4059 ofs += sizeof (struct inotify_event) + ev->len; 4599 ofs += sizeof (struct inotify_event) + ev->len;
4060 } 4600 }
4061} 4601}
4062 4602
4063inline_size void ecb_cold 4603inline_size ecb_cold
4604void
4064ev_check_2625 (EV_P) 4605ev_check_2625 (EV_P)
4065{ 4606{
4066 /* kernels < 2.6.25 are borked 4607 /* kernels < 2.6.25 are borked
4067 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4608 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4068 */ 4609 */
… …
4158#else 4699#else
4159# define EV_LSTAT(p,b) lstat (p, b) 4700# define EV_LSTAT(p,b) lstat (p, b)
4160#endif 4701#endif
4161 4702
4162void 4703void
4163ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4704ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4164{ 4705{
4165 if (lstat (w->path, &w->attr) < 0) 4706 if (lstat (w->path, &w->attr) < 0)
4166 w->attr.st_nlink = 0; 4707 w->attr.st_nlink = 0;
4167 else if (!w->attr.st_nlink) 4708 else if (!w->attr.st_nlink)
4168 w->attr.st_nlink = 1; 4709 w->attr.st_nlink = 1;
4169} 4710}
4170 4711
4171static void noinline 4712ecb_noinline
4713static void
4172stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4714stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4173{ 4715{
4174 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4716 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4175 4717
4176 ev_statdata prev = w->attr; 4718 ev_statdata prev = w->attr;
… …
4207 ev_feed_event (EV_A_ w, EV_STAT); 4749 ev_feed_event (EV_A_ w, EV_STAT);
4208 } 4750 }
4209} 4751}
4210 4752
4211void 4753void
4212ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4754ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4213{ 4755{
4214 if (expect_false (ev_is_active (w))) 4756 if (ecb_expect_false (ev_is_active (w)))
4215 return; 4757 return;
4216 4758
4217 ev_stat_stat (EV_A_ w); 4759 ev_stat_stat (EV_A_ w);
4218 4760
4219 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4761 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4238 4780
4239 EV_FREQUENT_CHECK; 4781 EV_FREQUENT_CHECK;
4240} 4782}
4241 4783
4242void 4784void
4243ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4785ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4244{ 4786{
4245 clear_pending (EV_A_ (W)w); 4787 clear_pending (EV_A_ (W)w);
4246 if (expect_false (!ev_is_active (w))) 4788 if (ecb_expect_false (!ev_is_active (w)))
4247 return; 4789 return;
4248 4790
4249 EV_FREQUENT_CHECK; 4791 EV_FREQUENT_CHECK;
4250 4792
4251#if EV_USE_INOTIFY 4793#if EV_USE_INOTIFY
… …
4264} 4806}
4265#endif 4807#endif
4266 4808
4267#if EV_IDLE_ENABLE 4809#if EV_IDLE_ENABLE
4268void 4810void
4269ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4811ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4270{ 4812{
4271 if (expect_false (ev_is_active (w))) 4813 if (ecb_expect_false (ev_is_active (w)))
4272 return; 4814 return;
4273 4815
4274 pri_adjust (EV_A_ (W)w); 4816 pri_adjust (EV_A_ (W)w);
4275 4817
4276 EV_FREQUENT_CHECK; 4818 EV_FREQUENT_CHECK;
… …
4279 int active = ++idlecnt [ABSPRI (w)]; 4821 int active = ++idlecnt [ABSPRI (w)];
4280 4822
4281 ++idleall; 4823 ++idleall;
4282 ev_start (EV_A_ (W)w, active); 4824 ev_start (EV_A_ (W)w, active);
4283 4825
4284 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4826 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4285 idles [ABSPRI (w)][active - 1] = w; 4827 idles [ABSPRI (w)][active - 1] = w;
4286 } 4828 }
4287 4829
4288 EV_FREQUENT_CHECK; 4830 EV_FREQUENT_CHECK;
4289} 4831}
4290 4832
4291void 4833void
4292ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4834ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4293{ 4835{
4294 clear_pending (EV_A_ (W)w); 4836 clear_pending (EV_A_ (W)w);
4295 if (expect_false (!ev_is_active (w))) 4837 if (ecb_expect_false (!ev_is_active (w)))
4296 return; 4838 return;
4297 4839
4298 EV_FREQUENT_CHECK; 4840 EV_FREQUENT_CHECK;
4299 4841
4300 { 4842 {
… …
4311} 4853}
4312#endif 4854#endif
4313 4855
4314#if EV_PREPARE_ENABLE 4856#if EV_PREPARE_ENABLE
4315void 4857void
4316ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4858ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4317{ 4859{
4318 if (expect_false (ev_is_active (w))) 4860 if (ecb_expect_false (ev_is_active (w)))
4319 return; 4861 return;
4320 4862
4321 EV_FREQUENT_CHECK; 4863 EV_FREQUENT_CHECK;
4322 4864
4323 ev_start (EV_A_ (W)w, ++preparecnt); 4865 ev_start (EV_A_ (W)w, ++preparecnt);
4324 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4866 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4325 prepares [preparecnt - 1] = w; 4867 prepares [preparecnt - 1] = w;
4326 4868
4327 EV_FREQUENT_CHECK; 4869 EV_FREQUENT_CHECK;
4328} 4870}
4329 4871
4330void 4872void
4331ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4873ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4332{ 4874{
4333 clear_pending (EV_A_ (W)w); 4875 clear_pending (EV_A_ (W)w);
4334 if (expect_false (!ev_is_active (w))) 4876 if (ecb_expect_false (!ev_is_active (w)))
4335 return; 4877 return;
4336 4878
4337 EV_FREQUENT_CHECK; 4879 EV_FREQUENT_CHECK;
4338 4880
4339 { 4881 {
… …
4349} 4891}
4350#endif 4892#endif
4351 4893
4352#if EV_CHECK_ENABLE 4894#if EV_CHECK_ENABLE
4353void 4895void
4354ev_check_start (EV_P_ ev_check *w) EV_THROW 4896ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4355{ 4897{
4356 if (expect_false (ev_is_active (w))) 4898 if (ecb_expect_false (ev_is_active (w)))
4357 return; 4899 return;
4358 4900
4359 EV_FREQUENT_CHECK; 4901 EV_FREQUENT_CHECK;
4360 4902
4361 ev_start (EV_A_ (W)w, ++checkcnt); 4903 ev_start (EV_A_ (W)w, ++checkcnt);
4362 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4904 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4363 checks [checkcnt - 1] = w; 4905 checks [checkcnt - 1] = w;
4364 4906
4365 EV_FREQUENT_CHECK; 4907 EV_FREQUENT_CHECK;
4366} 4908}
4367 4909
4368void 4910void
4369ev_check_stop (EV_P_ ev_check *w) EV_THROW 4911ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4370{ 4912{
4371 clear_pending (EV_A_ (W)w); 4913 clear_pending (EV_A_ (W)w);
4372 if (expect_false (!ev_is_active (w))) 4914 if (ecb_expect_false (!ev_is_active (w)))
4373 return; 4915 return;
4374 4916
4375 EV_FREQUENT_CHECK; 4917 EV_FREQUENT_CHECK;
4376 4918
4377 { 4919 {
… …
4386 EV_FREQUENT_CHECK; 4928 EV_FREQUENT_CHECK;
4387} 4929}
4388#endif 4930#endif
4389 4931
4390#if EV_EMBED_ENABLE 4932#if EV_EMBED_ENABLE
4391void noinline 4933ecb_noinline
4934void
4392ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4935ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4393{ 4936{
4394 ev_run (w->other, EVRUN_NOWAIT); 4937 ev_run (w->other, EVRUN_NOWAIT);
4395} 4938}
4396 4939
4397static void 4940static void
… …
4445 ev_idle_stop (EV_A_ idle); 4988 ev_idle_stop (EV_A_ idle);
4446} 4989}
4447#endif 4990#endif
4448 4991
4449void 4992void
4450ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4993ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4451{ 4994{
4452 if (expect_false (ev_is_active (w))) 4995 if (ecb_expect_false (ev_is_active (w)))
4453 return; 4996 return;
4454 4997
4455 { 4998 {
4456 EV_P = w->other; 4999 EV_P = w->other;
4457 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5000 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4476 5019
4477 EV_FREQUENT_CHECK; 5020 EV_FREQUENT_CHECK;
4478} 5021}
4479 5022
4480void 5023void
4481ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5024ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4482{ 5025{
4483 clear_pending (EV_A_ (W)w); 5026 clear_pending (EV_A_ (W)w);
4484 if (expect_false (!ev_is_active (w))) 5027 if (ecb_expect_false (!ev_is_active (w)))
4485 return; 5028 return;
4486 5029
4487 EV_FREQUENT_CHECK; 5030 EV_FREQUENT_CHECK;
4488 5031
4489 ev_io_stop (EV_A_ &w->io); 5032 ev_io_stop (EV_A_ &w->io);
… …
4496} 5039}
4497#endif 5040#endif
4498 5041
4499#if EV_FORK_ENABLE 5042#if EV_FORK_ENABLE
4500void 5043void
4501ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5044ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4502{ 5045{
4503 if (expect_false (ev_is_active (w))) 5046 if (ecb_expect_false (ev_is_active (w)))
4504 return; 5047 return;
4505 5048
4506 EV_FREQUENT_CHECK; 5049 EV_FREQUENT_CHECK;
4507 5050
4508 ev_start (EV_A_ (W)w, ++forkcnt); 5051 ev_start (EV_A_ (W)w, ++forkcnt);
4509 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5052 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4510 forks [forkcnt - 1] = w; 5053 forks [forkcnt - 1] = w;
4511 5054
4512 EV_FREQUENT_CHECK; 5055 EV_FREQUENT_CHECK;
4513} 5056}
4514 5057
4515void 5058void
4516ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5059ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4517{ 5060{
4518 clear_pending (EV_A_ (W)w); 5061 clear_pending (EV_A_ (W)w);
4519 if (expect_false (!ev_is_active (w))) 5062 if (ecb_expect_false (!ev_is_active (w)))
4520 return; 5063 return;
4521 5064
4522 EV_FREQUENT_CHECK; 5065 EV_FREQUENT_CHECK;
4523 5066
4524 { 5067 {
… …
4534} 5077}
4535#endif 5078#endif
4536 5079
4537#if EV_CLEANUP_ENABLE 5080#if EV_CLEANUP_ENABLE
4538void 5081void
4539ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5082ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4540{ 5083{
4541 if (expect_false (ev_is_active (w))) 5084 if (ecb_expect_false (ev_is_active (w)))
4542 return; 5085 return;
4543 5086
4544 EV_FREQUENT_CHECK; 5087 EV_FREQUENT_CHECK;
4545 5088
4546 ev_start (EV_A_ (W)w, ++cleanupcnt); 5089 ev_start (EV_A_ (W)w, ++cleanupcnt);
4547 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5090 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4548 cleanups [cleanupcnt - 1] = w; 5091 cleanups [cleanupcnt - 1] = w;
4549 5092
4550 /* cleanup watchers should never keep a refcount on the loop */ 5093 /* cleanup watchers should never keep a refcount on the loop */
4551 ev_unref (EV_A); 5094 ev_unref (EV_A);
4552 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
4553} 5096}
4554 5097
4555void 5098void
4556ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5099ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4557{ 5100{
4558 clear_pending (EV_A_ (W)w); 5101 clear_pending (EV_A_ (W)w);
4559 if (expect_false (!ev_is_active (w))) 5102 if (ecb_expect_false (!ev_is_active (w)))
4560 return; 5103 return;
4561 5104
4562 EV_FREQUENT_CHECK; 5105 EV_FREQUENT_CHECK;
4563 ev_ref (EV_A); 5106 ev_ref (EV_A);
4564 5107
… …
4575} 5118}
4576#endif 5119#endif
4577 5120
4578#if EV_ASYNC_ENABLE 5121#if EV_ASYNC_ENABLE
4579void 5122void
4580ev_async_start (EV_P_ ev_async *w) EV_THROW 5123ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4581{ 5124{
4582 if (expect_false (ev_is_active (w))) 5125 if (ecb_expect_false (ev_is_active (w)))
4583 return; 5126 return;
4584 5127
4585 w->sent = 0; 5128 w->sent = 0;
4586 5129
4587 evpipe_init (EV_A); 5130 evpipe_init (EV_A);
4588 5131
4589 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4590 5133
4591 ev_start (EV_A_ (W)w, ++asynccnt); 5134 ev_start (EV_A_ (W)w, ++asynccnt);
4592 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5135 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4593 asyncs [asynccnt - 1] = w; 5136 asyncs [asynccnt - 1] = w;
4594 5137
4595 EV_FREQUENT_CHECK; 5138 EV_FREQUENT_CHECK;
4596} 5139}
4597 5140
4598void 5141void
4599ev_async_stop (EV_P_ ev_async *w) EV_THROW 5142ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4600{ 5143{
4601 clear_pending (EV_A_ (W)w); 5144 clear_pending (EV_A_ (W)w);
4602 if (expect_false (!ev_is_active (w))) 5145 if (ecb_expect_false (!ev_is_active (w)))
4603 return; 5146 return;
4604 5147
4605 EV_FREQUENT_CHECK; 5148 EV_FREQUENT_CHECK;
4606 5149
4607 { 5150 {
… …
4615 5158
4616 EV_FREQUENT_CHECK; 5159 EV_FREQUENT_CHECK;
4617} 5160}
4618 5161
4619void 5162void
4620ev_async_send (EV_P_ ev_async *w) EV_THROW 5163ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4621{ 5164{
4622 w->sent = 1; 5165 w->sent = 1;
4623 evpipe_write (EV_A_ &async_pending); 5166 evpipe_write (EV_A_ &async_pending);
4624} 5167}
4625#endif 5168#endif
… …
4662 5205
4663 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5206 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4664} 5207}
4665 5208
4666void 5209void
4667ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5210ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4668{ 5211{
4669 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5212 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4670
4671 if (expect_false (!once))
4672 {
4673 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4674 return;
4675 }
4676 5213
4677 once->cb = cb; 5214 once->cb = cb;
4678 once->arg = arg; 5215 once->arg = arg;
4679 5216
4680 ev_init (&once->io, once_cb_io); 5217 ev_init (&once->io, once_cb_io);
… …
4693} 5230}
4694 5231
4695/*****************************************************************************/ 5232/*****************************************************************************/
4696 5233
4697#if EV_WALK_ENABLE 5234#if EV_WALK_ENABLE
4698void ecb_cold 5235ecb_cold
5236void
4699ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5237ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4700{ 5238{
4701 int i, j; 5239 int i, j;
4702 ev_watcher_list *wl, *wn; 5240 ev_watcher_list *wl, *wn;
4703 5241
4704 if (types & (EV_IO | EV_EMBED)) 5242 if (types & (EV_IO | EV_EMBED))

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