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Comparing libev/ev.c (file contents):
Revision 1.453 by root, Thu Feb 28 00:33:25 2013 UTC vs.
Revision 1.512 by root, Fri Nov 22 19:54:38 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 0x00010002 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
653 #endif
654#endif
655
656#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
657#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
658
659/* work around x32 idiocy by defining proper macros */
660#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
661 #if _ILP32
662 #define ECB_AMD64_X32 1
663 #else
664 #define ECB_AMD64 1
551 #endif 665 #endif
552#endif 666#endif
553 667
554/* many compilers define _GNUC_ to some versions but then only implement 668/* many compilers define _GNUC_ to some versions but then only implement
555 * what their idiot authors think are the "more important" extensions, 669 * what their idiot authors think are the "more important" extensions,
556 * causing enormous grief in return for some better fake benchmark numbers. 670 * causing enormous grief in return for some better fake benchmark numbers.
557 * or so. 671 * or so.
558 * 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
559 * 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.
560 */ 674 */
561#ifndef ECB_GCC_VERSION
562 #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__
563 #define ECB_GCC_VERSION(major,minor) 0 676 #define ECB_GCC_VERSION(major,minor) 0
564 #else 677#else
565 #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)))
566 #endif 679#endif
567#endif
568 680
569#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)))
570#define ECB_C99 (__STDC_VERSION__ >= 199901L) 682
571#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
572#define ECB_CPP (__cplusplus+0) 695#define ECB_CPP (__cplusplus+0)
573#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)
574 711
575#if ECB_CPP 712#if ECB_CPP
576 #define ECB_EXTERN_C extern "C" 713 #define ECB_EXTERN_C extern "C"
577 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 714 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
578 #define ECB_EXTERN_C_END } 715 #define ECB_EXTERN_C_END }
… …
593 730
594#if ECB_NO_SMP 731#if ECB_NO_SMP
595 #define ECB_MEMORY_FENCE do { } while (0) 732 #define ECB_MEMORY_FENCE do { } while (0)
596#endif 733#endif
597 734
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
598#ifndef ECB_MEMORY_FENCE 744#ifndef ECB_MEMORY_FENCE
599 #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")
600 #if __i386 || __i386__ 747 #if __i386 || __i386__
601 #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")
602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 749 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 750 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 751 #elif ECB_GCC_AMD64
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 752 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
606 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 753 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 754 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 755 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
609 #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 */
610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 764 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 765 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
766 || defined __ARM_ARCH_6T2__
612 #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")
613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 768 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 769 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 770 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__ 771 #elif __aarch64__
772 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
773 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
617 #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")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 775 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 776 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__ 777 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 778 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #elif defined __mips__ 779 #elif defined __mips__
780 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
781 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 782 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
624 #elif defined __alpha__ 783 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 784 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__ 785 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 786 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 787 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__ 788 #elif defined __ia64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 789 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
790 #elif defined __m68k__
791 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
792 #elif defined __m88k__
793 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
794 #elif defined __sh__
795 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
631 #endif 796 #endif
632 #endif 797 #endif
633#endif 798#endif
634 799
635#ifndef ECB_MEMORY_FENCE 800#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7) 801 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */ 802 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #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)
639 807
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 808 #elif ECB_CLANG_EXTENSION(c_atomic)
641 * without risking compile time errors with other compilers. We *could*
642 * define our own ecb_clang_has_feature, but I just can't be bothered to work
643 * around this shit time and again.
644 * #elif defined __clang && __has_feature (cxx_atomic)
645 * // see comment below (stdatomic.h) about the C11 memory model. 809 /* see comment below (stdatomic.h) about the C11 memory model. */
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 810 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */ 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)
648 814
649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 815 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
650 #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()
651 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 823 #elif _MSC_VER >= 1400 /* VC++ 2005 */
652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 824 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
653 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 825 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
654 #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 */
655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 827 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
656 #elif defined _WIN32 828 #elif defined _WIN32
657 #include <WinNT.h> 829 #include <WinNT.h>
658 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 830 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
659 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 831 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
660 #include <mbarrier.h> 832 #include <mbarrier.h>
661 #define ECB_MEMORY_FENCE __machine_rw_barrier () 833 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
662 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 834 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
663 #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 ()
664 #elif __xlC__ 837 #elif __xlC__
665 #define ECB_MEMORY_FENCE __sync () 838 #define ECB_MEMORY_FENCE __sync ()
666 #endif 839 #endif
667#endif 840#endif
668 841
669#ifndef ECB_MEMORY_FENCE 842#ifndef ECB_MEMORY_FENCE
670 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 843 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
671 /* 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, */
672 /* not just C11 atomics and atomic accesses */ 845 /* not just C11 atomics and atomic accesses */
673 #include <stdatomic.h> 846 #include <stdatomic.h>
674 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
675 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */
680 #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)
681 #endif 850 #endif
682#endif 851#endif
683 852
684#ifndef ECB_MEMORY_FENCE 853#ifndef ECB_MEMORY_FENCE
685 #if !ECB_AVOID_PTHREADS 854 #if !ECB_AVOID_PTHREADS
… …
705 874
706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 875#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 876 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
708#endif 877#endif
709 878
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
710/*****************************************************************************/ 883/*****************************************************************************/
711 884
712#if __cplusplus 885#if ECB_CPP
713 #define ecb_inline static inline 886 #define ecb_inline static inline
714#elif ECB_GCC_VERSION(2,5) 887#elif ECB_GCC_VERSION(2,5)
715 #define ecb_inline static __inline__ 888 #define ecb_inline static __inline__
716#elif ECB_C99 889#elif ECB_C99
717 #define ecb_inline static inline 890 #define ecb_inline static inline
… …
731 904
732#define ECB_CONCAT_(a, b) a ## b 905#define ECB_CONCAT_(a, b) a ## b
733#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 906#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
734#define ECB_STRINGIFY_(a) # a 907#define ECB_STRINGIFY_(a) # a
735#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))
736 910
737#define ecb_function_ ecb_inline 911#define ecb_function_ ecb_inline
738 912
739#if ECB_GCC_VERSION(3,1) 913#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
740 #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)
741 #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)
742 #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)
743 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 936 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
744#else 937#else
745 #define ecb_attribute(attrlist)
746 #define ecb_is_constant(expr) 0
747 #define ecb_expect(expr,value) (expr)
748 #define ecb_prefetch(addr,rw,locality) 938 #define ecb_prefetch(addr,rw,locality)
749#endif 939#endif
750 940
751/* no emulation for ecb_decltype */ 941/* no emulation for ecb_decltype */
752#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; };
753 #define ecb_decltype(x) __decltype(x) 945 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
754#elif ECB_GCC_VERSION(3,0) 946#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
755 #define ecb_decltype(x) __typeof(x) 947 #define ecb_decltype(x) __typeof__ (x)
756#endif 948#endif
757 949
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
758#define ecb_noinline ecb_attribute ((__noinline__)) 967 #define ecb_noinline ecb_attribute ((__noinline__))
968#endif
969
759#define ecb_unused ecb_attribute ((__unused__)) 970#define ecb_unused ecb_attribute ((__unused__))
760#define ecb_const ecb_attribute ((__const__)) 971#define ecb_const ecb_attribute ((__const__))
761#define ecb_pure ecb_attribute ((__pure__)) 972#define ecb_pure ecb_attribute ((__pure__))
762 973
763#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 */
764 #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)
765#else 982#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__)) 983 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif 984#endif
768 985
769#if ECB_GCC_VERSION(4,3) 986#if ECB_GCC_VERSION(4,3)
… …
784/* for compatibility to the rest of the world */ 1001/* for compatibility to the rest of the world */
785#define ecb_likely(expr) ecb_expect_true (expr) 1002#define ecb_likely(expr) ecb_expect_true (expr)
786#define ecb_unlikely(expr) ecb_expect_false (expr) 1003#define ecb_unlikely(expr) ecb_expect_false (expr)
787 1004
788/* count trailing zero bits and count # of one bits */ 1005/* count trailing zero bits and count # of one bits */
789#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))
790 /* 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 */
791 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 1011 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
792 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 1012 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
793 #define ecb_ctz32(x) __builtin_ctz (x) 1013 #define ecb_ctz32(x) __builtin_ctz (x)
794 #define ecb_ctz64(x) __builtin_ctzll (x) 1014 #define ecb_ctz64(x) __builtin_ctzll (x)
795 #define ecb_popcount32(x) __builtin_popcount (x) 1015 #define ecb_popcount32(x) __builtin_popcount (x)
796 /* no popcountll */ 1016 /* no popcountll */
797#else 1017#else
798 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1018 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
799 ecb_function_ int 1019 ecb_function_ ecb_const int
800 ecb_ctz32 (uint32_t x) 1020 ecb_ctz32 (uint32_t x)
801 { 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
802 int r = 0; 1027 int r = 0;
803 1028
804 x &= ~x + 1; /* this isolates the lowest bit */ 1029 x &= ~x + 1; /* this isolates the lowest bit */
805 1030
806#if ECB_branchless_on_i386 1031#if ECB_branchless_on_i386
… …
816 if (x & 0xff00ff00) r += 8; 1041 if (x & 0xff00ff00) r += 8;
817 if (x & 0xffff0000) r += 16; 1042 if (x & 0xffff0000) r += 16;
818#endif 1043#endif
819 1044
820 return r; 1045 return r;
1046#endif
821 } 1047 }
822 1048
823 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1049 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
824 ecb_function_ int 1050 ecb_function_ ecb_const int
825 ecb_ctz64 (uint64_t x) 1051 ecb_ctz64 (uint64_t x)
826 { 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
827 int shift = x & 0xffffffffU ? 0 : 32; 1058 int shift = x & 0xffffffff ? 0 : 32;
828 return ecb_ctz32 (x >> shift) + shift; 1059 return ecb_ctz32 (x >> shift) + shift;
1060#endif
829 } 1061 }
830 1062
831 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1063 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
832 ecb_function_ int 1064 ecb_function_ ecb_const int
833 ecb_popcount32 (uint32_t x) 1065 ecb_popcount32 (uint32_t x)
834 { 1066 {
835 x -= (x >> 1) & 0x55555555; 1067 x -= (x >> 1) & 0x55555555;
836 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1068 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
837 x = ((x >> 4) + x) & 0x0f0f0f0f; 1069 x = ((x >> 4) + x) & 0x0f0f0f0f;
838 x *= 0x01010101; 1070 x *= 0x01010101;
839 1071
840 return x >> 24; 1072 return x >> 24;
841 } 1073 }
842 1074
843 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1075 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
844 ecb_function_ int ecb_ld32 (uint32_t x) 1076 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
845 { 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
846 int r = 0; 1083 int r = 0;
847 1084
848 if (x >> 16) { x >>= 16; r += 16; } 1085 if (x >> 16) { x >>= 16; r += 16; }
849 if (x >> 8) { x >>= 8; r += 8; } 1086 if (x >> 8) { x >>= 8; r += 8; }
850 if (x >> 4) { x >>= 4; r += 4; } 1087 if (x >> 4) { x >>= 4; r += 4; }
851 if (x >> 2) { x >>= 2; r += 2; } 1088 if (x >> 2) { x >>= 2; r += 2; }
852 if (x >> 1) { r += 1; } 1089 if (x >> 1) { r += 1; }
853 1090
854 return r; 1091 return r;
1092#endif
855 } 1093 }
856 1094
857 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1095 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
858 ecb_function_ int ecb_ld64 (uint64_t x) 1096 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
859 { 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
860 int r = 0; 1103 int r = 0;
861 1104
862 if (x >> 32) { x >>= 32; r += 32; } 1105 if (x >> 32) { x >>= 32; r += 32; }
863 1106
864 return r + ecb_ld32 (x); 1107 return r + ecb_ld32 (x);
1108#endif
865 } 1109 }
866#endif 1110#endif
867 1111
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1112ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
869ecb_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)); }
870ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1114ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
871ecb_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)); }
872 1116
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1117ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1118ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
875{ 1119{
876 return ( (x * 0x0802U & 0x22110U) 1120 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1121 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878} 1122}
879 1123
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1124ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1125ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
882{ 1126{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1127 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1128 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1129 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8); 1130 x = ( x >> 8 ) | ( x << 8);
887 1131
888 return x; 1132 return x;
889} 1133}
890 1134
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1135ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1136ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
893{ 1137{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1138 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1139 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1140 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1141 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
900 return x; 1144 return x;
901} 1145}
902 1146
903/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1147/* popcount64 is only available on 64 bit cpus as gcc builtin */
904/* so for this version we are lazy */ 1148/* so for this version we are lazy */
905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1149ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
906ecb_function_ int 1150ecb_function_ ecb_const int
907ecb_popcount64 (uint64_t x) 1151ecb_popcount64 (uint64_t x)
908{ 1152{
909 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1153 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
910} 1154}
911 1155
912ecb_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);
913ecb_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);
914ecb_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);
915ecb_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);
916ecb_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);
917ecb_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);
918ecb_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);
919ecb_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);
920 1164
921ecb_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); }
922ecb_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); }
923ecb_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); }
924ecb_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); }
925ecb_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); }
926ecb_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); }
927ecb_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); }
928ecb_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); }
929 1173
930#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
931 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1178 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1179 #endif
932 #define ecb_bswap32(x) __builtin_bswap32 (x) 1180 #define ecb_bswap32(x) __builtin_bswap32 (x)
933 #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)))
934#else 1187#else
935 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1188 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
936 ecb_function_ uint16_t 1189 ecb_function_ ecb_const uint16_t
937 ecb_bswap16 (uint16_t x) 1190 ecb_bswap16 (uint16_t x)
938 { 1191 {
939 return ecb_rotl16 (x, 8); 1192 return ecb_rotl16 (x, 8);
940 } 1193 }
941 1194
942 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1195 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
943 ecb_function_ uint32_t 1196 ecb_function_ ecb_const uint32_t
944 ecb_bswap32 (uint32_t x) 1197 ecb_bswap32 (uint32_t x)
945 { 1198 {
946 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1199 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
947 } 1200 }
948 1201
949 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1202 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
950 ecb_function_ uint64_t 1203 ecb_function_ ecb_const uint64_t
951 ecb_bswap64 (uint64_t x) 1204 ecb_bswap64 (uint64_t x)
952 { 1205 {
953 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1206 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
954 } 1207 }
955#endif 1208#endif
956 1209
957#if ECB_GCC_VERSION(4,5) 1210#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
958 #define ecb_unreachable() __builtin_unreachable () 1211 #define ecb_unreachable() __builtin_unreachable ()
959#else 1212#else
960 /* 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 :/ */
961 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1214 ecb_inline ecb_noreturn void ecb_unreachable (void);
962 ecb_inline void ecb_unreachable (void) { } 1215 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
963#endif 1216#endif
964 1217
965/* try to tell the compiler that some condition is definitely true */ 1218/* try to tell the compiler that some condition is definitely true */
966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1219#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
967 1220
968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1221ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
969ecb_inline unsigned char 1222ecb_inline ecb_const uint32_t
970ecb_byteorder_helper (void) 1223ecb_byteorder_helper (void)
971{ 1224{
972 /* the union code still generates code under pressure in gcc, */ 1225 /* the union code still generates code under pressure in gcc, */
973 /* but less than using pointers, and always seems to */ 1226 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */ 1227 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */ 1228 /* the reason why we have this horrible preprocessor mess */
976 /* 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 */
977 /* or when using a recent enough gcc version (>= 4.6) */ 1230 /* or when using a recent enough gcc version (>= 4.6) */
978#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979 return 0x44;
980#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
981 return 0x44; 1234 return 0x44332211;
982#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
983 return 0x11; 1238 return 0x11223344;
984#else 1239#else
985 union 1240 union
986 { 1241 {
1242 uint8_t c[4];
987 uint32_t i; 1243 uint32_t u;
988 uint8_t c;
989 } u = { 0x11223344 }; 1244 } u = { 0x11, 0x22, 0x33, 0x44 };
990 return u.c; 1245 return u.u;
991#endif 1246#endif
992} 1247}
993 1248
994ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1249ecb_inline ecb_const ecb_bool ecb_big_endian (void);
995ecb_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; }
996ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1251ecb_inline ecb_const ecb_bool ecb_little_endian (void);
997ecb_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; }
998 1253
999#if ECB_GCC_VERSION(3,0) || ECB_C99 1254#if ECB_GCC_VERSION(3,0) || ECB_C99
1000 #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))
1001#else 1256#else
1002 #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)))
1003#endif 1258#endif
1004 1259
1005#if __cplusplus 1260#if ECB_CPP
1006 template<typename T> 1261 template<typename T>
1007 static inline T ecb_div_rd (T val, T div) 1262 static inline T ecb_div_rd (T val, T div)
1008 { 1263 {
1009 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1264 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010 } 1265 }
… …
1027 } 1282 }
1028#else 1283#else
1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1284 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1030#endif 1285#endif
1031 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
1032/*******************************************************************************/ 1383/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1384/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034 1385
1035/* basically, everything uses "ieee pure-endian" floating point numbers */ 1386/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1387/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \ 1388#if 0 \
1038 || __i386 || __i386__ \ 1389 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1390 || ECB_GCC_AMD64 \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1391 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \ 1392 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \ 1393 || defined __mips__ \
1044 || defined __alpha__ \ 1394 || defined __alpha__ \
1045 || defined __hppa__ \ 1395 || defined __hppa__ \
1046 || defined __ia64__ \ 1396 || defined __ia64__ \
1397 || defined __m68k__ \
1398 || defined __m88k__ \
1399 || defined __sh__ \
1047 || 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__
1048 #define ECB_STDFP 1 1403 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */ 1404 #include <string.h> /* for memcpy */
1050#else 1405#else
1051 #define ECB_STDFP 0 1406 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif 1407#endif
1054 1408
1055#ifndef ECB_NO_LIBM 1409#ifndef ECB_NO_LIBM
1056 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
1057 /* convert a float to ieee single/binary32 */ 1434 /* convert a float to ieee single/binary32 */
1058 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);
1059 ecb_function_ uint32_t 1436 ecb_function_ ecb_const uint32_t
1060 ecb_float_to_binary32 (float x) 1437 ecb_float_to_binary32 (float x)
1061 { 1438 {
1062 uint32_t r; 1439 uint32_t r;
1063 1440
1064 #if ECB_STDFP 1441 #if ECB_STDFP
… …
1071 if (x == 0e0f ) return 0x00000000U; 1448 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1449 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1450 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU; 1451 if (x != x ) return 0x7fbfffffU;
1075 1452
1076 m = frexpf (x, &e) * 0x1000000U; 1453 m = ecb_frexpf (x, &e) * 0x1000000U;
1077 1454
1078 r = m & 0x80000000U; 1455 r = m & 0x80000000U;
1079 1456
1080 if (r) 1457 if (r)
1081 m = -m; 1458 m = -m;
… …
1093 1470
1094 return r; 1471 return r;
1095 } 1472 }
1096 1473
1097 /* converts an ieee single/binary32 to a float */ 1474 /* converts an ieee single/binary32 to a float */
1098 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);
1099 ecb_function_ float 1476 ecb_function_ ecb_const float
1100 ecb_binary32_to_float (uint32_t x) 1477 ecb_binary32_to_float (uint32_t x)
1101 { 1478 {
1102 float r; 1479 float r;
1103 1480
1104 #if ECB_STDFP 1481 #if ECB_STDFP
… …
1114 x |= 0x800000U; 1491 x |= 0x800000U;
1115 else 1492 else
1116 e = 1; 1493 e = 1;
1117 1494
1118 /* 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 */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1496 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1120 1497
1121 r = neg ? -r : r; 1498 r = neg ? -r : r;
1122 #endif 1499 #endif
1123 1500
1124 return r; 1501 return r;
1125 } 1502 }
1126 1503
1127 /* convert a double to ieee double/binary64 */ 1504 /* convert a double to ieee double/binary64 */
1128 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);
1129 ecb_function_ uint64_t 1506 ecb_function_ ecb_const uint64_t
1130 ecb_double_to_binary64 (double x) 1507 ecb_double_to_binary64 (double x)
1131 { 1508 {
1132 uint64_t r; 1509 uint64_t r;
1133 1510
1134 #if ECB_STDFP 1511 #if ECB_STDFP
… …
1163 1540
1164 return r; 1541 return r;
1165 } 1542 }
1166 1543
1167 /* converts an ieee double/binary64 to a double */ 1544 /* converts an ieee double/binary64 to a double */
1168 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);
1169 ecb_function_ double 1546 ecb_function_ ecb_const double
1170 ecb_binary64_to_double (uint64_t x) 1547 ecb_binary64_to_double (uint64_t x)
1171 { 1548 {
1172 double r; 1549 double r;
1173 1550
1174 #if ECB_STDFP 1551 #if ECB_STDFP
… …
1192 #endif 1569 #endif
1193 1570
1194 return r; 1571 return r;
1195 } 1572 }
1196 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
1197#endif 1590#endif
1198 1591
1199#endif 1592#endif
1200 1593
1201/* ECB.H END */ 1594/* ECB.H END */
1202 1595
1203#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1596#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1204/* 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
1205 * 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
1206 * 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
1207 * libev, in which cases the memory fences become nops. 1600 * libev, in which cases the memory fences become nops.
1208 * alternatively, you can remove this #error and link against libpthread, 1601 * alternatively, you can remove this #error and link against libpthread,
1209 * which will then provide the memory fences. 1602 * which will then provide the memory fences.
1210 */ 1603 */
1211# error "memory fences not defined for your architecture, please report" 1604# error "memory fences not defined for your architecture, please report"
… …
1215# define ECB_MEMORY_FENCE do { } while (0) 1608# define ECB_MEMORY_FENCE do { } while (0)
1216# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1609# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1217# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1610# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1218#endif 1611#endif
1219 1612
1220#define expect_false(cond) ecb_expect_false (cond)
1221#define expect_true(cond) ecb_expect_true (cond)
1222#define noinline ecb_noinline
1223
1224#define inline_size ecb_inline 1613#define inline_size ecb_inline
1225 1614
1226#if EV_FEATURE_CODE 1615#if EV_FEATURE_CODE
1227# define inline_speed ecb_inline 1616# define inline_speed ecb_inline
1228#else 1617#else
1229# define inline_speed static noinline 1618# define inline_speed ecb_noinline static
1230#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/*****************************************************************************/
1231 1686
1232#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1687#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1233 1688
1234#if EV_MINPRI == EV_MAXPRI 1689#if EV_MINPRI == EV_MAXPRI
1235# define ABSPRI(w) (((W)w), 0) 1690# define ABSPRI(w) (((W)w), 0)
1236#else 1691#else
1237# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1692# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1238#endif 1693#endif
1239 1694
1240#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1695#define EMPTY /* required for microsofts broken pseudo-c compiler */
1241#define EMPTY2(a,b) /* used to suppress some warnings */
1242 1696
1243typedef ev_watcher *W; 1697typedef ev_watcher *W;
1244typedef ev_watcher_list *WL; 1698typedef ev_watcher_list *WL;
1245typedef ev_watcher_time *WT; 1699typedef ev_watcher_time *WT;
1246 1700
… …
1271# include "ev_win32.c" 1725# include "ev_win32.c"
1272#endif 1726#endif
1273 1727
1274/*****************************************************************************/ 1728/*****************************************************************************/
1275 1729
1730#if EV_USE_LINUXAIO
1731# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1732#endif
1733
1276/* define a suitable floor function (only used by periodics atm) */ 1734/* define a suitable floor function (only used by periodics atm) */
1277 1735
1278#if EV_USE_FLOOR 1736#if EV_USE_FLOOR
1279# include <math.h> 1737# include <math.h>
1280# define ev_floor(v) floor (v) 1738# define ev_floor(v) floor (v)
1281#else 1739#else
1282 1740
1283#include <float.h> 1741#include <float.h>
1284 1742
1285/* 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
1286static ev_tstamp noinline 1745static ev_tstamp
1287ev_floor (ev_tstamp v) 1746ev_floor (ev_tstamp v)
1288{ 1747{
1289 /* the choice of shift factor is not terribly important */ 1748 /* the choice of shift factor is not terribly important */
1290#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1749#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1291 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1750 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1292#else 1751#else
1293 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1752 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1294#endif 1753#endif
1295 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
1296 /* argument too large for an unsigned long? */ 1763 /* argument too large for an unsigned long? then reduce it */
1297 if (expect_false (v >= shift)) 1764 if (ecb_expect_false (v >= shift))
1298 { 1765 {
1299 ev_tstamp f; 1766 ev_tstamp f;
1300 1767
1301 if (v == v - 1.) 1768 if (v == v - 1.)
1302 return v; /* very large number */ 1769 return v; /* very large numbers are assumed to be integer */
1303 1770
1304 f = shift * ev_floor (v * (1. / shift)); 1771 f = shift * ev_floor (v * (1. / shift));
1305 return f + ev_floor (v - f); 1772 return f + ev_floor (v - f);
1306 } 1773 }
1307 1774
1308 /* special treatment for negative args? */
1309 if (expect_false (v < 0.))
1310 {
1311 ev_tstamp f = -ev_floor (-v);
1312
1313 return f - (f == v ? 0 : 1);
1314 }
1315
1316 /* fits into an unsigned long */ 1775 /* fits into an unsigned long */
1317 return (unsigned long)v; 1776 return (unsigned long)v;
1318} 1777}
1319 1778
1320#endif 1779#endif
… …
1323 1782
1324#ifdef __linux 1783#ifdef __linux
1325# include <sys/utsname.h> 1784# include <sys/utsname.h>
1326#endif 1785#endif
1327 1786
1328static unsigned int noinline ecb_cold 1787ecb_noinline ecb_cold
1788static unsigned int
1329ev_linux_version (void) 1789ev_linux_version (void)
1330{ 1790{
1331#ifdef __linux 1791#ifdef __linux
1332 unsigned int v = 0; 1792 unsigned int v = 0;
1333 struct utsname buf; 1793 struct utsname buf;
… …
1362} 1822}
1363 1823
1364/*****************************************************************************/ 1824/*****************************************************************************/
1365 1825
1366#if EV_AVOID_STDIO 1826#if EV_AVOID_STDIO
1367static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1368ev_printerr (const char *msg) 1829ev_printerr (const char *msg)
1369{ 1830{
1370 write (STDERR_FILENO, msg, strlen (msg)); 1831 write (STDERR_FILENO, msg, strlen (msg));
1371} 1832}
1372#endif 1833#endif
1373 1834
1374static void (*syserr_cb)(const char *msg) EV_THROW; 1835static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1375 1836
1376void ecb_cold 1837ecb_cold
1838void
1377ev_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
1378{ 1840{
1379 syserr_cb = cb; 1841 syserr_cb = cb;
1380} 1842}
1381 1843
1382static void noinline ecb_cold 1844ecb_noinline ecb_cold
1845static void
1383ev_syserr (const char *msg) 1846ev_syserr (const char *msg)
1384{ 1847{
1385 if (!msg) 1848 if (!msg)
1386 msg = "(libev) system error"; 1849 msg = "(libev) system error";
1387 1850
… …
1400 abort (); 1863 abort ();
1401 } 1864 }
1402} 1865}
1403 1866
1404static void * 1867static void *
1405ev_realloc_emul (void *ptr, long size) EV_THROW 1868ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1406{ 1869{
1407 /* some systems, notably openbsd and darwin, fail to properly 1870 /* some systems, notably openbsd and darwin, fail to properly
1408 * 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
1409 * the single unix specification, so work around them here. 1872 * the single unix specification, so work around them here.
1410 * recently, also (at least) fedora and debian started breaking it, 1873 * recently, also (at least) fedora and debian started breaking it,
… …
1416 1879
1417 free (ptr); 1880 free (ptr);
1418 return 0; 1881 return 0;
1419} 1882}
1420 1883
1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1884static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1422 1885
1423void ecb_cold 1886ecb_cold
1887void
1424ev_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
1425{ 1889{
1426 alloc = cb; 1890 alloc = cb;
1427} 1891}
1428 1892
1429inline_speed void * 1893inline_speed void *
… …
1456typedef struct 1920typedef struct
1457{ 1921{
1458 WL head; 1922 WL head;
1459 unsigned char events; /* the events watched for */ 1923 unsigned char events; /* the events watched for */
1460 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) */
1461 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 */
1462 unsigned char unused; 1926 unsigned char eflags; /* flags field for use by backends */
1463#if EV_USE_EPOLL 1927#if EV_USE_EPOLL
1464 unsigned int egen; /* generation counter to counter epoll bugs */ 1928 unsigned int egen; /* generation counter to counter epoll bugs */
1465#endif 1929#endif
1466#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1930#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1467 SOCKET handle; 1931 SOCKET handle;
… …
1521 static struct ev_loop default_loop_struct; 1985 static struct ev_loop default_loop_struct;
1522 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 */
1523 1987
1524#else 1988#else
1525 1989
1526 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 */
1527 #define VAR(name,decl) static decl; 1991 #define VAR(name,decl) static decl;
1528 #include "ev_vars.h" 1992 #include "ev_vars.h"
1529 #undef VAR 1993 #undef VAR
1530 1994
1531 static int ev_default_loop_ptr; 1995 static int ev_default_loop_ptr;
1532 1996
1533#endif 1997#endif
1534 1998
1535#if EV_FEATURE_API 1999#if EV_FEATURE_API
1536# 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)
1537# 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)
1538# define EV_INVOKE_PENDING invoke_cb (EV_A) 2002# define EV_INVOKE_PENDING invoke_cb (EV_A)
1539#else 2003#else
1540# define EV_RELEASE_CB (void)0 2004# define EV_RELEASE_CB (void)0
1541# define EV_ACQUIRE_CB (void)0 2005# define EV_ACQUIRE_CB (void)0
1542# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2006# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1546 2010
1547/*****************************************************************************/ 2011/*****************************************************************************/
1548 2012
1549#ifndef EV_HAVE_EV_TIME 2013#ifndef EV_HAVE_EV_TIME
1550ev_tstamp 2014ev_tstamp
1551ev_time (void) EV_THROW 2015ev_time (void) EV_NOEXCEPT
1552{ 2016{
1553#if EV_USE_REALTIME 2017#if EV_USE_REALTIME
1554 if (expect_true (have_realtime)) 2018 if (ecb_expect_true (have_realtime))
1555 { 2019 {
1556 struct timespec ts; 2020 struct timespec ts;
1557 clock_gettime (CLOCK_REALTIME, &ts); 2021 clock_gettime (CLOCK_REALTIME, &ts);
1558 return ts.tv_sec + ts.tv_nsec * 1e-9; 2022 return EV_TS_GET (ts);
1559 } 2023 }
1560#endif 2024#endif
1561 2025
2026 {
1562 struct timeval tv; 2027 struct timeval tv;
1563 gettimeofday (&tv, 0); 2028 gettimeofday (&tv, 0);
1564 return tv.tv_sec + tv.tv_usec * 1e-6; 2029 return EV_TV_GET (tv);
2030 }
1565} 2031}
1566#endif 2032#endif
1567 2033
1568inline_size ev_tstamp 2034inline_size ev_tstamp
1569get_clock (void) 2035get_clock (void)
1570{ 2036{
1571#if EV_USE_MONOTONIC 2037#if EV_USE_MONOTONIC
1572 if (expect_true (have_monotonic)) 2038 if (ecb_expect_true (have_monotonic))
1573 { 2039 {
1574 struct timespec ts; 2040 struct timespec ts;
1575 clock_gettime (CLOCK_MONOTONIC, &ts); 2041 clock_gettime (CLOCK_MONOTONIC, &ts);
1576 return ts.tv_sec + ts.tv_nsec * 1e-9; 2042 return EV_TS_GET (ts);
1577 } 2043 }
1578#endif 2044#endif
1579 2045
1580 return ev_time (); 2046 return ev_time ();
1581} 2047}
1582 2048
1583#if EV_MULTIPLICITY 2049#if EV_MULTIPLICITY
1584ev_tstamp 2050ev_tstamp
1585ev_now (EV_P) EV_THROW 2051ev_now (EV_P) EV_NOEXCEPT
1586{ 2052{
1587 return ev_rt_now; 2053 return ev_rt_now;
1588} 2054}
1589#endif 2055#endif
1590 2056
1591void 2057void
1592ev_sleep (ev_tstamp delay) EV_THROW 2058ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1593{ 2059{
1594 if (delay > 0.) 2060 if (delay > EV_TS_CONST (0.))
1595 { 2061 {
1596#if EV_USE_NANOSLEEP 2062#if EV_USE_NANOSLEEP
1597 struct timespec ts; 2063 struct timespec ts;
1598 2064
1599 EV_TS_SET (ts, delay); 2065 EV_TS_SET (ts, delay);
1600 nanosleep (&ts, 0); 2066 nanosleep (&ts, 0);
1601#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) */
1602 Sleep ((unsigned long)(delay * 1e3)); 2070 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1603#else 2071#else
1604 struct timeval tv; 2072 struct timeval tv;
1605 2073
1606 /* 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 */
1607 /* something not guaranteed by newer posix versions, but guaranteed */ 2075 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1637 } 2105 }
1638 2106
1639 return ncur; 2107 return ncur;
1640} 2108}
1641 2109
1642static void * noinline ecb_cold 2110ecb_noinline ecb_cold
2111static void *
1643array_realloc (int elem, void *base, int *cur, int cnt) 2112array_realloc (int elem, void *base, int *cur, int cnt)
1644{ 2113{
1645 *cur = array_nextsize (elem, *cur, cnt); 2114 *cur = array_nextsize (elem, *cur, cnt);
1646 return ev_realloc (base, elem * *cur); 2115 return ev_realloc (base, elem * *cur);
1647} 2116}
1648 2117
2118#define array_needsize_noinit(base,offset,count)
2119
1649#define array_init_zero(base,count) \ 2120#define array_needsize_zerofill(base,offset,count) \
1650 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2121 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1651 2122
1652#define array_needsize(type,base,cur,cnt,init) \ 2123#define array_needsize(type,base,cur,cnt,init) \
1653 if (expect_false ((cnt) > (cur))) \ 2124 if (ecb_expect_false ((cnt) > (cur))) \
1654 { \ 2125 { \
1655 int ecb_unused ocur_ = (cur); \ 2126 ecb_unused int ocur_ = (cur); \
1656 (base) = (type *)array_realloc \ 2127 (base) = (type *)array_realloc \
1657 (sizeof (type), (base), &(cur), (cnt)); \ 2128 (sizeof (type), (base), &(cur), (cnt)); \
1658 init ((base) + (ocur_), (cur) - ocur_); \ 2129 init ((base), ocur_, ((cur) - ocur_)); \
1659 } 2130 }
1660 2131
1661#if 0 2132#if 0
1662#define array_slim(type,stem) \ 2133#define array_slim(type,stem) \
1663 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2134 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1672 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
1673 2144
1674/*****************************************************************************/ 2145/*****************************************************************************/
1675 2146
1676/* dummy callback for pending events */ 2147/* dummy callback for pending events */
1677static void noinline 2148ecb_noinline
2149static void
1678pendingcb (EV_P_ ev_prepare *w, int revents) 2150pendingcb (EV_P_ ev_prepare *w, int revents)
1679{ 2151{
1680} 2152}
1681 2153
1682void noinline 2154ecb_noinline
2155void
1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2156ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1684{ 2157{
1685 W w_ = (W)w; 2158 W w_ = (W)w;
1686 int pri = ABSPRI (w_); 2159 int pri = ABSPRI (w_);
1687 2160
1688 if (expect_false (w_->pending)) 2161 if (ecb_expect_false (w_->pending))
1689 pendings [pri][w_->pending - 1].events |= revents; 2162 pendings [pri][w_->pending - 1].events |= revents;
1690 else 2163 else
1691 { 2164 {
1692 w_->pending = ++pendingcnt [pri]; 2165 w_->pending = ++pendingcnt [pri];
1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2166 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1694 pendings [pri][w_->pending - 1].w = w_; 2167 pendings [pri][w_->pending - 1].w = w_;
1695 pendings [pri][w_->pending - 1].events = revents; 2168 pendings [pri][w_->pending - 1].events = revents;
1696 } 2169 }
1697 2170
1698 pendingpri = NUMPRI - 1; 2171 pendingpri = NUMPRI - 1;
1699} 2172}
1700 2173
1701inline_speed void 2174inline_speed void
1702feed_reverse (EV_P_ W w) 2175feed_reverse (EV_P_ W w)
1703{ 2176{
1704 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2177 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1705 rfeeds [rfeedcnt++] = w; 2178 rfeeds [rfeedcnt++] = w;
1706} 2179}
1707 2180
1708inline_size void 2181inline_size void
1709feed_reverse_done (EV_P_ int revents) 2182feed_reverse_done (EV_P_ int revents)
… …
1744inline_speed void 2217inline_speed void
1745fd_event (EV_P_ int fd, int revents) 2218fd_event (EV_P_ int fd, int revents)
1746{ 2219{
1747 ANFD *anfd = anfds + fd; 2220 ANFD *anfd = anfds + fd;
1748 2221
1749 if (expect_true (!anfd->reify)) 2222 if (ecb_expect_true (!anfd->reify))
1750 fd_event_nocheck (EV_A_ fd, revents); 2223 fd_event_nocheck (EV_A_ fd, revents);
1751} 2224}
1752 2225
1753void 2226void
1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2227ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1755{ 2228{
1756 if (fd >= 0 && fd < anfdmax) 2229 if (fd >= 0 && fd < anfdmax)
1757 fd_event_nocheck (EV_A_ fd, revents); 2230 fd_event_nocheck (EV_A_ fd, revents);
1758} 2231}
1759 2232
… …
1796 ev_io *w; 2269 ev_io *w;
1797 2270
1798 unsigned char o_events = anfd->events; 2271 unsigned char o_events = anfd->events;
1799 unsigned char o_reify = anfd->reify; 2272 unsigned char o_reify = anfd->reify;
1800 2273
1801 anfd->reify = 0; 2274 anfd->reify = 0;
1802 2275
1803 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2276 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1804 { 2277 {
1805 anfd->events = 0; 2278 anfd->events = 0;
1806 2279
1807 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)
1808 anfd->events |= (unsigned char)w->events; 2281 anfd->events |= (unsigned char)w->events;
… …
1817 2290
1818 fdchangecnt = 0; 2291 fdchangecnt = 0;
1819} 2292}
1820 2293
1821/* something about the given fd changed */ 2294/* something about the given fd changed */
1822inline_size void 2295inline_size
2296void
1823fd_change (EV_P_ int fd, int flags) 2297fd_change (EV_P_ int fd, int flags)
1824{ 2298{
1825 unsigned char reify = anfds [fd].reify; 2299 unsigned char reify = anfds [fd].reify;
1826 anfds [fd].reify |= flags; 2300 anfds [fd].reify |= flags;
1827 2301
1828 if (expect_true (!reify)) 2302 if (ecb_expect_true (!reify))
1829 { 2303 {
1830 ++fdchangecnt; 2304 ++fdchangecnt;
1831 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2305 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1832 fdchanges [fdchangecnt - 1] = fd; 2306 fdchanges [fdchangecnt - 1] = fd;
1833 } 2307 }
1834} 2308}
1835 2309
1836/* 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 */
1837inline_speed void ecb_cold 2311inline_speed ecb_cold void
1838fd_kill (EV_P_ int fd) 2312fd_kill (EV_P_ int fd)
1839{ 2313{
1840 ev_io *w; 2314 ev_io *w;
1841 2315
1842 while ((w = (ev_io *)anfds [fd].head)) 2316 while ((w = (ev_io *)anfds [fd].head))
… …
1845 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);
1846 } 2320 }
1847} 2321}
1848 2322
1849/* check whether the given fd is actually valid, for error recovery */ 2323/* check whether the given fd is actually valid, for error recovery */
1850inline_size int ecb_cold 2324inline_size ecb_cold int
1851fd_valid (int fd) 2325fd_valid (int fd)
1852{ 2326{
1853#ifdef _WIN32 2327#ifdef _WIN32
1854 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2328 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1855#else 2329#else
1856 return fcntl (fd, F_GETFD) != -1; 2330 return fcntl (fd, F_GETFD) != -1;
1857#endif 2331#endif
1858} 2332}
1859 2333
1860/* called on EBADF to verify fds */ 2334/* called on EBADF to verify fds */
1861static void noinline ecb_cold 2335ecb_noinline ecb_cold
2336static void
1862fd_ebadf (EV_P) 2337fd_ebadf (EV_P)
1863{ 2338{
1864 int fd; 2339 int fd;
1865 2340
1866 for (fd = 0; fd < anfdmax; ++fd) 2341 for (fd = 0; fd < anfdmax; ++fd)
… …
1868 if (!fd_valid (fd) && errno == EBADF) 2343 if (!fd_valid (fd) && errno == EBADF)
1869 fd_kill (EV_A_ fd); 2344 fd_kill (EV_A_ fd);
1870} 2345}
1871 2346
1872/* 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 */
1873static void noinline ecb_cold 2348ecb_noinline ecb_cold
2349static void
1874fd_enomem (EV_P) 2350fd_enomem (EV_P)
1875{ 2351{
1876 int fd; 2352 int fd;
1877 2353
1878 for (fd = anfdmax; fd--; ) 2354 for (fd = anfdmax; fd--; )
… …
1882 break; 2358 break;
1883 } 2359 }
1884} 2360}
1885 2361
1886/* 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 */
1887static void noinline 2363ecb_noinline
2364static void
1888fd_rearm_all (EV_P) 2365fd_rearm_all (EV_P)
1889{ 2366{
1890 int fd; 2367 int fd;
1891 2368
1892 for (fd = 0; fd < anfdmax; ++fd) 2369 for (fd = 0; fd < anfdmax; ++fd)
… …
1945 ev_tstamp minat; 2422 ev_tstamp minat;
1946 ANHE *minpos; 2423 ANHE *minpos;
1947 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2424 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1948 2425
1949 /* find minimum child */ 2426 /* find minimum child */
1950 if (expect_true (pos + DHEAP - 1 < E)) 2427 if (ecb_expect_true (pos + DHEAP - 1 < E))
1951 { 2428 {
1952 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2429 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1953 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));
1954 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));
1955 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));
1956 } 2433 }
1957 else if (pos < E) 2434 else if (pos < E)
1958 { 2435 {
1959 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2436 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1960 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));
1961 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));
1962 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));
1963 } 2440 }
1964 else 2441 else
1965 break; 2442 break;
1966 2443
1967 if (ANHE_at (he) <= minat) 2444 if (ANHE_at (he) <= minat)
… …
1975 2452
1976 heap [k] = he; 2453 heap [k] = he;
1977 ev_active (ANHE_w (he)) = k; 2454 ev_active (ANHE_w (he)) = k;
1978} 2455}
1979 2456
1980#else /* 4HEAP */ 2457#else /* not 4HEAP */
1981 2458
1982#define HEAP0 1 2459#define HEAP0 1
1983#define HPARENT(k) ((k) >> 1) 2460#define HPARENT(k) ((k) >> 1)
1984#define UPHEAP_DONE(p,k) (!(p)) 2461#define UPHEAP_DONE(p,k) (!(p))
1985 2462
… …
2073 2550
2074/*****************************************************************************/ 2551/*****************************************************************************/
2075 2552
2076#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2077 2554
2078static void noinline ecb_cold 2555ecb_noinline ecb_cold
2556static void
2079evpipe_init (EV_P) 2557evpipe_init (EV_P)
2080{ 2558{
2081 if (!ev_is_active (&pipe_w)) 2559 if (!ev_is_active (&pipe_w))
2082 { 2560 {
2083 int fds [2]; 2561 int fds [2];
… …
2094 while (pipe (fds)) 2572 while (pipe (fds))
2095 ev_syserr ("(libev) error creating signal/async pipe"); 2573 ev_syserr ("(libev) error creating signal/async pipe");
2096 2574
2097 fd_intern (fds [0]); 2575 fd_intern (fds [0]);
2098 } 2576 }
2099
2100 fd_intern (fds [1]);
2101 2577
2102 evpipe [0] = fds [0]; 2578 evpipe [0] = fds [0];
2103 2579
2104 if (evpipe [1] < 0) 2580 if (evpipe [1] < 0)
2105 evpipe [1] = fds [1]; /* first call, set write fd */ 2581 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2112 2588
2113 dup2 (fds [1], evpipe [1]); 2589 dup2 (fds [1], evpipe [1]);
2114 close (fds [1]); 2590 close (fds [1]);
2115 } 2591 }
2116 2592
2593 fd_intern (evpipe [1]);
2594
2117 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2595 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2118 ev_io_start (EV_A_ &pipe_w); 2596 ev_io_start (EV_A_ &pipe_w);
2119 ev_unref (EV_A); /* watcher should not keep loop alive */ 2597 ev_unref (EV_A); /* watcher should not keep loop alive */
2120 } 2598 }
2121} 2599}
… …
2123inline_speed void 2601inline_speed void
2124evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2602evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2125{ 2603{
2126 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 */
2127 2605
2128 if (expect_true (*flag)) 2606 if (ecb_expect_true (*flag))
2129 return; 2607 return;
2130 2608
2131 *flag = 1; 2609 *flag = 1;
2132 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 */
2133 2611
… …
2154#endif 2632#endif
2155 { 2633 {
2156#ifdef _WIN32 2634#ifdef _WIN32
2157 WSABUF buf; 2635 WSABUF buf;
2158 DWORD sent; 2636 DWORD sent;
2159 buf.buf = &buf; 2637 buf.buf = (char *)&buf;
2160 buf.len = 1; 2638 buf.len = 1;
2161 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);
2162#else 2640#else
2163 write (evpipe [1], &(evpipe [1]), 1); 2641 write (evpipe [1], &(evpipe [1]), 1);
2164#endif 2642#endif
… …
2210 sig_pending = 0; 2688 sig_pending = 0;
2211 2689
2212 ECB_MEMORY_FENCE; 2690 ECB_MEMORY_FENCE;
2213 2691
2214 for (i = EV_NSIG - 1; i--; ) 2692 for (i = EV_NSIG - 1; i--; )
2215 if (expect_false (signals [i].pending)) 2693 if (ecb_expect_false (signals [i].pending))
2216 ev_feed_signal_event (EV_A_ i + 1); 2694 ev_feed_signal_event (EV_A_ i + 1);
2217 } 2695 }
2218#endif 2696#endif
2219 2697
2220#if EV_ASYNC_ENABLE 2698#if EV_ASYNC_ENABLE
… …
2236} 2714}
2237 2715
2238/*****************************************************************************/ 2716/*****************************************************************************/
2239 2717
2240void 2718void
2241ev_feed_signal (int signum) EV_THROW 2719ev_feed_signal (int signum) EV_NOEXCEPT
2242{ 2720{
2243#if EV_MULTIPLICITY 2721#if EV_MULTIPLICITY
2244 EV_P; 2722 EV_P;
2245 ECB_MEMORY_FENCE_ACQUIRE; 2723 ECB_MEMORY_FENCE_ACQUIRE;
2246 EV_A = signals [signum - 1].loop; 2724 EV_A = signals [signum - 1].loop;
… …
2261#endif 2739#endif
2262 2740
2263 ev_feed_signal (signum); 2741 ev_feed_signal (signum);
2264} 2742}
2265 2743
2266void noinline 2744ecb_noinline
2745void
2267ev_feed_signal_event (EV_P_ int signum) EV_THROW 2746ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2268{ 2747{
2269 WL w; 2748 WL w;
2270 2749
2271 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2750 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2272 return; 2751 return;
2273 2752
2274 --signum; 2753 --signum;
2275 2754
2276#if EV_MULTIPLICITY 2755#if EV_MULTIPLICITY
2277 /* 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 */
2278 /* or, likely more useful, feeding a signal nobody is waiting for */ 2757 /* or, likely more useful, feeding a signal nobody is waiting for */
2279 2758
2280 if (expect_false (signals [signum].loop != EV_A)) 2759 if (ecb_expect_false (signals [signum].loop != EV_A))
2281 return; 2760 return;
2282#endif 2761#endif
2283 2762
2284 signals [signum].pending = 0; 2763 signals [signum].pending = 0;
2285 ECB_MEMORY_FENCE_RELEASE; 2764 ECB_MEMORY_FENCE_RELEASE;
… …
2381# include "ev_kqueue.c" 2860# include "ev_kqueue.c"
2382#endif 2861#endif
2383#if EV_USE_EPOLL 2862#if EV_USE_EPOLL
2384# include "ev_epoll.c" 2863# include "ev_epoll.c"
2385#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
2386#if EV_USE_POLL 2871#if EV_USE_POLL
2387# include "ev_poll.c" 2872# include "ev_poll.c"
2388#endif 2873#endif
2389#if EV_USE_SELECT 2874#if EV_USE_SELECT
2390# include "ev_select.c" 2875# include "ev_select.c"
2391#endif 2876#endif
2392 2877
2393int ecb_cold 2878ecb_cold int
2394ev_version_major (void) EV_THROW 2879ev_version_major (void) EV_NOEXCEPT
2395{ 2880{
2396 return EV_VERSION_MAJOR; 2881 return EV_VERSION_MAJOR;
2397} 2882}
2398 2883
2399int ecb_cold 2884ecb_cold int
2400ev_version_minor (void) EV_THROW 2885ev_version_minor (void) EV_NOEXCEPT
2401{ 2886{
2402 return EV_VERSION_MINOR; 2887 return EV_VERSION_MINOR;
2403} 2888}
2404 2889
2405/* 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 */
2406int inline_size ecb_cold 2891inline_size ecb_cold int
2407enable_secure (void) 2892enable_secure (void)
2408{ 2893{
2409#ifdef _WIN32 2894#ifdef _WIN32
2410 return 0; 2895 return 0;
2411#else 2896#else
2412 return getuid () != geteuid () 2897 return getuid () != geteuid ()
2413 || getgid () != getegid (); 2898 || getgid () != getegid ();
2414#endif 2899#endif
2415} 2900}
2416 2901
2417unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2418ev_supported_backends (void) EV_THROW 2904ev_supported_backends (void) EV_NOEXCEPT
2419{ 2905{
2420 unsigned int flags = 0; 2906 unsigned int flags = 0;
2421 2907
2422 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2908 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2423 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2909 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2424 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;
2425 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2913 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2426 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2914 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2427 2915
2428 return flags; 2916 return flags;
2429} 2917}
2430 2918
2431unsigned int ecb_cold 2919ecb_cold
2920unsigned int
2432ev_recommended_backends (void) EV_THROW 2921ev_recommended_backends (void) EV_NOEXCEPT
2433{ 2922{
2434 unsigned int flags = ev_supported_backends (); 2923 unsigned int flags = ev_supported_backends ();
2435 2924
2436#ifndef __NetBSD__ 2925#ifndef __NetBSD__
2437 /* kqueue is borked on everything but netbsd apparently */ 2926 /* kqueue is borked on everything but netbsd apparently */
… …
2445#endif 2934#endif
2446#ifdef __FreeBSD__ 2935#ifdef __FreeBSD__
2447 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) */
2448#endif 2937#endif
2449 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
2450 return flags; 2948 return flags;
2451} 2949}
2452 2950
2453unsigned int ecb_cold 2951ecb_cold
2952unsigned int
2454ev_embeddable_backends (void) EV_THROW 2953ev_embeddable_backends (void) EV_NOEXCEPT
2455{ 2954{
2456 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2955 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2457 2956
2458 /* 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 */
2459 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 */
2460 flags &= ~EVBACKEND_EPOLL; 2959 flags &= ~EVBACKEND_EPOLL;
2461 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
2462 return flags; 2968 return flags;
2463} 2969}
2464 2970
2465unsigned int 2971unsigned int
2466ev_backend (EV_P) EV_THROW 2972ev_backend (EV_P) EV_NOEXCEPT
2467{ 2973{
2468 return backend; 2974 return backend;
2469} 2975}
2470 2976
2471#if EV_FEATURE_API 2977#if EV_FEATURE_API
2472unsigned int 2978unsigned int
2473ev_iteration (EV_P) EV_THROW 2979ev_iteration (EV_P) EV_NOEXCEPT
2474{ 2980{
2475 return loop_count; 2981 return loop_count;
2476} 2982}
2477 2983
2478unsigned int 2984unsigned int
2479ev_depth (EV_P) EV_THROW 2985ev_depth (EV_P) EV_NOEXCEPT
2480{ 2986{
2481 return loop_depth; 2987 return loop_depth;
2482} 2988}
2483 2989
2484void 2990void
2485ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2991ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2486{ 2992{
2487 io_blocktime = interval; 2993 io_blocktime = interval;
2488} 2994}
2489 2995
2490void 2996void
2491ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2997ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2492{ 2998{
2493 timeout_blocktime = interval; 2999 timeout_blocktime = interval;
2494} 3000}
2495 3001
2496void 3002void
2497ev_set_userdata (EV_P_ void *data) EV_THROW 3003ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2498{ 3004{
2499 userdata = data; 3005 userdata = data;
2500} 3006}
2501 3007
2502void * 3008void *
2503ev_userdata (EV_P) EV_THROW 3009ev_userdata (EV_P) EV_NOEXCEPT
2504{ 3010{
2505 return userdata; 3011 return userdata;
2506} 3012}
2507 3013
2508void 3014void
2509ev_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
2510{ 3016{
2511 invoke_cb = invoke_pending_cb; 3017 invoke_cb = invoke_pending_cb;
2512} 3018}
2513 3019
2514void 3020void
2515ev_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
2516{ 3022{
2517 release_cb = release; 3023 release_cb = release;
2518 acquire_cb = acquire; 3024 acquire_cb = acquire;
2519} 3025}
2520#endif 3026#endif
2521 3027
2522/* initialise a loop structure, must be zero-initialised */ 3028/* initialise a loop structure, must be zero-initialised */
2523static void noinline ecb_cold 3029ecb_noinline ecb_cold
3030static void
2524loop_init (EV_P_ unsigned int flags) EV_THROW 3031loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2525{ 3032{
2526 if (!backend) 3033 if (!backend)
2527 { 3034 {
2528 origflags = flags; 3035 origflags = flags;
2529 3036
… …
2587 3094
2588 if (!(flags & EVBACKEND_MASK)) 3095 if (!(flags & EVBACKEND_MASK))
2589 flags |= ev_recommended_backends (); 3096 flags |= ev_recommended_backends ();
2590 3097
2591#if EV_USE_IOCP 3098#if EV_USE_IOCP
2592 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3099 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2593#endif 3100#endif
2594#if EV_USE_PORT 3101#if EV_USE_PORT
2595 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3102 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2596#endif 3103#endif
2597#if EV_USE_KQUEUE 3104#if EV_USE_KQUEUE
2598 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);
2599#endif 3112#endif
2600#if EV_USE_EPOLL 3113#if EV_USE_EPOLL
2601 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3114 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2602#endif 3115#endif
2603#if EV_USE_POLL 3116#if EV_USE_POLL
2604 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3117 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2605#endif 3118#endif
2606#if EV_USE_SELECT 3119#if EV_USE_SELECT
2607 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3120 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2608#endif 3121#endif
2609 3122
2610 ev_prepare_init (&pending_w, pendingcb); 3123 ev_prepare_init (&pending_w, pendingcb);
2611 3124
2612#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3125#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2615#endif 3128#endif
2616 } 3129 }
2617} 3130}
2618 3131
2619/* free up a loop structure */ 3132/* free up a loop structure */
2620void ecb_cold 3133ecb_cold
3134void
2621ev_loop_destroy (EV_P) 3135ev_loop_destroy (EV_P)
2622{ 3136{
2623 int i; 3137 int i;
2624 3138
2625#if EV_MULTIPLICITY 3139#if EV_MULTIPLICITY
… …
2628 return; 3142 return;
2629#endif 3143#endif
2630 3144
2631#if EV_CLEANUP_ENABLE 3145#if EV_CLEANUP_ENABLE
2632 /* queue cleanup watchers (and execute them) */ 3146 /* queue cleanup watchers (and execute them) */
2633 if (expect_false (cleanupcnt)) 3147 if (ecb_expect_false (cleanupcnt))
2634 { 3148 {
2635 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3149 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2636 EV_INVOKE_PENDING; 3150 EV_INVOKE_PENDING;
2637 } 3151 }
2638#endif 3152#endif
… …
2666 3180
2667 if (backend_fd >= 0) 3181 if (backend_fd >= 0)
2668 close (backend_fd); 3182 close (backend_fd);
2669 3183
2670#if EV_USE_IOCP 3184#if EV_USE_IOCP
2671 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3185 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2672#endif 3186#endif
2673#if EV_USE_PORT 3187#if EV_USE_PORT
2674 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3188 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2675#endif 3189#endif
2676#if EV_USE_KQUEUE 3190#if EV_USE_KQUEUE
2677 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);
2678#endif 3198#endif
2679#if EV_USE_EPOLL 3199#if EV_USE_EPOLL
2680 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3200 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2681#endif 3201#endif
2682#if EV_USE_POLL 3202#if EV_USE_POLL
2683 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3203 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2684#endif 3204#endif
2685#if EV_USE_SELECT 3205#if EV_USE_SELECT
2686 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3206 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2687#endif 3207#endif
2688 3208
2689 for (i = NUMPRI; i--; ) 3209 for (i = NUMPRI; i--; )
2690 { 3210 {
2691 array_free (pending, [i]); 3211 array_free (pending, [i]);
… …
2733 3253
2734inline_size void 3254inline_size void
2735loop_fork (EV_P) 3255loop_fork (EV_P)
2736{ 3256{
2737#if EV_USE_PORT 3257#if EV_USE_PORT
2738 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3258 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2739#endif 3259#endif
2740#if EV_USE_KQUEUE 3260#if EV_USE_KQUEUE
2741 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);
2742#endif 3268#endif
2743#if EV_USE_EPOLL 3269#if EV_USE_EPOLL
2744 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3270 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2745#endif 3271#endif
2746#if EV_USE_INOTIFY 3272#if EV_USE_INOTIFY
2747 infy_fork (EV_A); 3273 infy_fork (EV_A);
2748#endif 3274#endif
2749 3275
2750#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3276#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2751 if (ev_is_active (&pipe_w)) 3277 if (ev_is_active (&pipe_w) && postfork != 2)
2752 { 3278 {
2753 /* 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 */
2754 3280
2755 ev_ref (EV_A); 3281 ev_ref (EV_A);
2756 ev_io_stop (EV_A_ &pipe_w); 3282 ev_io_stop (EV_A_ &pipe_w);
… …
2767 postfork = 0; 3293 postfork = 0;
2768} 3294}
2769 3295
2770#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
2771 3297
3298ecb_cold
2772struct ev_loop * ecb_cold 3299struct ev_loop *
2773ev_loop_new (unsigned int flags) EV_THROW 3300ev_loop_new (unsigned int flags) EV_NOEXCEPT
2774{ 3301{
2775 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3302 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2776 3303
2777 memset (EV_A, 0, sizeof (struct ev_loop)); 3304 memset (EV_A, 0, sizeof (struct ev_loop));
2778 loop_init (EV_A_ flags); 3305 loop_init (EV_A_ flags);
… …
2785} 3312}
2786 3313
2787#endif /* multiplicity */ 3314#endif /* multiplicity */
2788 3315
2789#if EV_VERIFY 3316#if EV_VERIFY
2790static void noinline ecb_cold 3317ecb_noinline ecb_cold
3318static void
2791verify_watcher (EV_P_ W w) 3319verify_watcher (EV_P_ W w)
2792{ 3320{
2793 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));
2794 3322
2795 if (w->pending) 3323 if (w->pending)
2796 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));
2797} 3325}
2798 3326
2799static void noinline ecb_cold 3327ecb_noinline ecb_cold
3328static void
2800verify_heap (EV_P_ ANHE *heap, int N) 3329verify_heap (EV_P_ ANHE *heap, int N)
2801{ 3330{
2802 int i; 3331 int i;
2803 3332
2804 for (i = HEAP0; i < N + HEAP0; ++i) 3333 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2809 3338
2810 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3339 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2811 } 3340 }
2812} 3341}
2813 3342
2814static void noinline ecb_cold 3343ecb_noinline ecb_cold
3344static void
2815array_verify (EV_P_ W *ws, int cnt) 3345array_verify (EV_P_ W *ws, int cnt)
2816{ 3346{
2817 while (cnt--) 3347 while (cnt--)
2818 { 3348 {
2819 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3349 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2822} 3352}
2823#endif 3353#endif
2824 3354
2825#if EV_FEATURE_API 3355#if EV_FEATURE_API
2826void ecb_cold 3356void ecb_cold
2827ev_verify (EV_P) EV_THROW 3357ev_verify (EV_P) EV_NOEXCEPT
2828{ 3358{
2829#if EV_VERIFY 3359#if EV_VERIFY
2830 int i; 3360 int i;
2831 WL w, w2; 3361 WL w, w2;
2832 3362
… …
2908#endif 3438#endif
2909} 3439}
2910#endif 3440#endif
2911 3441
2912#if EV_MULTIPLICITY 3442#if EV_MULTIPLICITY
3443ecb_cold
2913struct ev_loop * ecb_cold 3444struct ev_loop *
2914#else 3445#else
2915int 3446int
2916#endif 3447#endif
2917ev_default_loop (unsigned int flags) EV_THROW 3448ev_default_loop (unsigned int flags) EV_NOEXCEPT
2918{ 3449{
2919 if (!ev_default_loop_ptr) 3450 if (!ev_default_loop_ptr)
2920 { 3451 {
2921#if EV_MULTIPLICITY 3452#if EV_MULTIPLICITY
2922 EV_P = ev_default_loop_ptr = &default_loop_struct; 3453 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2941 3472
2942 return ev_default_loop_ptr; 3473 return ev_default_loop_ptr;
2943} 3474}
2944 3475
2945void 3476void
2946ev_loop_fork (EV_P) EV_THROW 3477ev_loop_fork (EV_P) EV_NOEXCEPT
2947{ 3478{
2948 postfork = 1; 3479 postfork = 1;
2949} 3480}
2950 3481
2951/*****************************************************************************/ 3482/*****************************************************************************/
… …
2955{ 3486{
2956 EV_CB_INVOKE ((W)w, revents); 3487 EV_CB_INVOKE ((W)w, revents);
2957} 3488}
2958 3489
2959unsigned int 3490unsigned int
2960ev_pending_count (EV_P) EV_THROW 3491ev_pending_count (EV_P) EV_NOEXCEPT
2961{ 3492{
2962 int pri; 3493 int pri;
2963 unsigned int count = 0; 3494 unsigned int count = 0;
2964 3495
2965 for (pri = NUMPRI; pri--; ) 3496 for (pri = NUMPRI; pri--; )
2966 count += pendingcnt [pri]; 3497 count += pendingcnt [pri];
2967 3498
2968 return count; 3499 return count;
2969} 3500}
2970 3501
2971void noinline 3502ecb_noinline
3503void
2972ev_invoke_pending (EV_P) 3504ev_invoke_pending (EV_P)
2973{ 3505{
2974 pendingpri = NUMPRI; 3506 pendingpri = NUMPRI;
2975 3507
2976 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3508 do
2977 { 3509 {
2978 --pendingpri; 3510 --pendingpri;
2979 3511
3512 /* pendingpri possibly gets modified in the inner loop */
2980 while (pendingcnt [pendingpri]) 3513 while (pendingcnt [pendingpri])
2981 { 3514 {
2982 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3515 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2983 3516
2984 p->w->pending = 0; 3517 p->w->pending = 0;
2985 EV_CB_INVOKE (p->w, p->events); 3518 EV_CB_INVOKE (p->w, p->events);
2986 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
2987 } 3520 }
2988 } 3521 }
3522 while (pendingpri);
2989} 3523}
2990 3524
2991#if EV_IDLE_ENABLE 3525#if EV_IDLE_ENABLE
2992/* make idle watchers pending. this handles the "call-idle */ 3526/* make idle watchers pending. this handles the "call-idle */
2993/* only when higher priorities are idle" logic */ 3527/* only when higher priorities are idle" logic */
2994inline_size void 3528inline_size void
2995idle_reify (EV_P) 3529idle_reify (EV_P)
2996{ 3530{
2997 if (expect_false (idleall)) 3531 if (ecb_expect_false (idleall))
2998 { 3532 {
2999 int pri; 3533 int pri;
3000 3534
3001 for (pri = NUMPRI; pri--; ) 3535 for (pri = NUMPRI; pri--; )
3002 { 3536 {
… …
3032 { 3566 {
3033 ev_at (w) += w->repeat; 3567 ev_at (w) += w->repeat;
3034 if (ev_at (w) < mn_now) 3568 if (ev_at (w) < mn_now)
3035 ev_at (w) = mn_now; 3569 ev_at (w) = mn_now;
3036 3570
3037 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.)));
3038 3572
3039 ANHE_at_cache (timers [HEAP0]); 3573 ANHE_at_cache (timers [HEAP0]);
3040 downheap (timers, timercnt, HEAP0); 3574 downheap (timers, timercnt, HEAP0);
3041 } 3575 }
3042 else 3576 else
… …
3051 } 3585 }
3052} 3586}
3053 3587
3054#if EV_PERIODIC_ENABLE 3588#if EV_PERIODIC_ENABLE
3055 3589
3056static void noinline 3590ecb_noinline
3591static void
3057periodic_recalc (EV_P_ ev_periodic *w) 3592periodic_recalc (EV_P_ ev_periodic *w)
3058{ 3593{
3059 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3594 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3060 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);
3061 3596
… …
3063 while (at <= ev_rt_now) 3598 while (at <= ev_rt_now)
3064 { 3599 {
3065 ev_tstamp nat = at + w->interval; 3600 ev_tstamp nat = at + w->interval;
3066 3601
3067 /* when resolution fails us, we use ev_rt_now */ 3602 /* when resolution fails us, we use ev_rt_now */
3068 if (expect_false (nat == at)) 3603 if (ecb_expect_false (nat == at))
3069 { 3604 {
3070 at = ev_rt_now; 3605 at = ev_rt_now;
3071 break; 3606 break;
3072 } 3607 }
3073 3608
… …
3119 } 3654 }
3120} 3655}
3121 3656
3122/* simply recalculate all periodics */ 3657/* simply recalculate all periodics */
3123/* 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? */
3124static void noinline ecb_cold 3659ecb_noinline ecb_cold
3660static void
3125periodics_reschedule (EV_P) 3661periodics_reschedule (EV_P)
3126{ 3662{
3127 int i; 3663 int i;
3128 3664
3129 /* adjust periodics after time jump */ 3665 /* adjust periodics after time jump */
… …
3142 reheap (periodics, periodiccnt); 3678 reheap (periodics, periodiccnt);
3143} 3679}
3144#endif 3680#endif
3145 3681
3146/* adjust all timers by a given offset */ 3682/* adjust all timers by a given offset */
3147static void noinline ecb_cold 3683ecb_noinline ecb_cold
3684static void
3148timers_reschedule (EV_P_ ev_tstamp adjust) 3685timers_reschedule (EV_P_ ev_tstamp adjust)
3149{ 3686{
3150 int i; 3687 int i;
3151 3688
3152 for (i = 0; i < timercnt; ++i) 3689 for (i = 0; i < timercnt; ++i)
… …
3161/* also detect if there was a timejump, and act accordingly */ 3698/* also detect if there was a timejump, and act accordingly */
3162inline_speed void 3699inline_speed void
3163time_update (EV_P_ ev_tstamp max_block) 3700time_update (EV_P_ ev_tstamp max_block)
3164{ 3701{
3165#if EV_USE_MONOTONIC 3702#if EV_USE_MONOTONIC
3166 if (expect_true (have_monotonic)) 3703 if (ecb_expect_true (have_monotonic))
3167 { 3704 {
3168 int i; 3705 int i;
3169 ev_tstamp odiff = rtmn_diff; 3706 ev_tstamp odiff = rtmn_diff;
3170 3707
3171 mn_now = get_clock (); 3708 mn_now = get_clock ();
3172 3709
3173 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3710 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3174 /* interpolate in the meantime */ 3711 /* interpolate in the meantime */
3175 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)))
3176 { 3713 {
3177 ev_rt_now = rtmn_diff + mn_now; 3714 ev_rt_now = rtmn_diff + mn_now;
3178 return; 3715 return;
3179 } 3716 }
3180 3717
… …
3194 ev_tstamp diff; 3731 ev_tstamp diff;
3195 rtmn_diff = ev_rt_now - mn_now; 3732 rtmn_diff = ev_rt_now - mn_now;
3196 3733
3197 diff = odiff - rtmn_diff; 3734 diff = odiff - rtmn_diff;
3198 3735
3199 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)))
3200 return; /* all is well */ 3737 return; /* all is well */
3201 3738
3202 ev_rt_now = ev_time (); 3739 ev_rt_now = ev_time ();
3203 mn_now = get_clock (); 3740 mn_now = get_clock ();
3204 now_floor = mn_now; 3741 now_floor = mn_now;
… …
3213 else 3750 else
3214#endif 3751#endif
3215 { 3752 {
3216 ev_rt_now = ev_time (); 3753 ev_rt_now = ev_time ();
3217 3754
3218 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)))
3219 { 3756 {
3220 /* 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 */
3221 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3758 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3222#if EV_PERIODIC_ENABLE 3759#if EV_PERIODIC_ENABLE
3223 periodics_reschedule (EV_A); 3760 periodics_reschedule (EV_A);
… …
3246#if EV_VERIFY >= 2 3783#if EV_VERIFY >= 2
3247 ev_verify (EV_A); 3784 ev_verify (EV_A);
3248#endif 3785#endif
3249 3786
3250#ifndef _WIN32 3787#ifndef _WIN32
3251 if (expect_false (curpid)) /* penalise the forking check even more */ 3788 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3252 if (expect_false (getpid () != curpid)) 3789 if (ecb_expect_false (getpid () != curpid))
3253 { 3790 {
3254 curpid = getpid (); 3791 curpid = getpid ();
3255 postfork = 1; 3792 postfork = 1;
3256 } 3793 }
3257#endif 3794#endif
3258 3795
3259#if EV_FORK_ENABLE 3796#if EV_FORK_ENABLE
3260 /* we might have forked, so queue fork handlers */ 3797 /* we might have forked, so queue fork handlers */
3261 if (expect_false (postfork)) 3798 if (ecb_expect_false (postfork))
3262 if (forkcnt) 3799 if (forkcnt)
3263 { 3800 {
3264 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3801 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3265 EV_INVOKE_PENDING; 3802 EV_INVOKE_PENDING;
3266 } 3803 }
3267#endif 3804#endif
3268 3805
3269#if EV_PREPARE_ENABLE 3806#if EV_PREPARE_ENABLE
3270 /* queue prepare watchers (and execute them) */ 3807 /* queue prepare watchers (and execute them) */
3271 if (expect_false (preparecnt)) 3808 if (ecb_expect_false (preparecnt))
3272 { 3809 {
3273 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3810 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3274 EV_INVOKE_PENDING; 3811 EV_INVOKE_PENDING;
3275 } 3812 }
3276#endif 3813#endif
3277 3814
3278 if (expect_false (loop_done)) 3815 if (ecb_expect_false (loop_done))
3279 break; 3816 break;
3280 3817
3281 /* we might have forked, so reify kernel state if necessary */ 3818 /* we might have forked, so reify kernel state if necessary */
3282 if (expect_false (postfork)) 3819 if (ecb_expect_false (postfork))
3283 loop_fork (EV_A); 3820 loop_fork (EV_A);
3284 3821
3285 /* update fd-related kernel structures */ 3822 /* update fd-related kernel structures */
3286 fd_reify (EV_A); 3823 fd_reify (EV_A);
3287 3824
… …
3292 3829
3293 /* remember old timestamp for io_blocktime calculation */ 3830 /* remember old timestamp for io_blocktime calculation */
3294 ev_tstamp prev_mn_now = mn_now; 3831 ev_tstamp prev_mn_now = mn_now;
3295 3832
3296 /* update time to cancel out callback processing overhead */ 3833 /* update time to cancel out callback processing overhead */
3297 time_update (EV_A_ 1e100); 3834 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3298 3835
3299 /* from now on, we want a pipe-wake-up */ 3836 /* from now on, we want a pipe-wake-up */
3300 pipe_write_wanted = 1; 3837 pipe_write_wanted = 1;
3301 3838
3302 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 */
3303 3840
3304 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3841 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3305 { 3842 {
3306 waittime = MAX_BLOCKTIME; 3843 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3307 3844
3308 if (timercnt) 3845 if (timercnt)
3309 { 3846 {
3310 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3847 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3311 if (waittime > to) waittime = to; 3848 if (waittime > to) waittime = to;
… …
3318 if (waittime > to) waittime = to; 3855 if (waittime > to) waittime = to;
3319 } 3856 }
3320#endif 3857#endif
3321 3858
3322 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3859 /* don't let timeouts decrease the waittime below timeout_blocktime */
3323 if (expect_false (waittime < timeout_blocktime)) 3860 if (ecb_expect_false (waittime < timeout_blocktime))
3324 waittime = timeout_blocktime; 3861 waittime = timeout_blocktime;
3325 3862
3326 /* at this point, we NEED to wait, so we have to ensure */ 3863 /* at this point, we NEED to wait, so we have to ensure */
3327 /* to pass a minimum nonzero value to the backend */ 3864 /* to pass a minimum nonzero value to the backend */
3328 if (expect_false (waittime < backend_mintime)) 3865 if (ecb_expect_false (waittime < backend_mintime))
3329 waittime = backend_mintime; 3866 waittime = backend_mintime;
3330 3867
3331 /* extra check because io_blocktime is commonly 0 */ 3868 /* extra check because io_blocktime is commonly 0 */
3332 if (expect_false (io_blocktime)) 3869 if (ecb_expect_false (io_blocktime))
3333 { 3870 {
3334 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3871 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3335 3872
3336 if (sleeptime > waittime - backend_mintime) 3873 if (sleeptime > waittime - backend_mintime)
3337 sleeptime = waittime - backend_mintime; 3874 sleeptime = waittime - backend_mintime;
3338 3875
3339 if (expect_true (sleeptime > 0.)) 3876 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3340 { 3877 {
3341 ev_sleep (sleeptime); 3878 ev_sleep (sleeptime);
3342 waittime -= sleeptime; 3879 waittime -= sleeptime;
3343 } 3880 }
3344 } 3881 }
… …
3358 { 3895 {
3359 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3896 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3360 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3897 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3361 } 3898 }
3362 3899
3363
3364 /* update ev_rt_now, do magic */ 3900 /* update ev_rt_now, do magic */
3365 time_update (EV_A_ waittime + sleeptime); 3901 time_update (EV_A_ waittime + sleeptime);
3366 } 3902 }
3367 3903
3368 /* queue pending timers and reschedule them */ 3904 /* queue pending timers and reschedule them */
… …
3376 idle_reify (EV_A); 3912 idle_reify (EV_A);
3377#endif 3913#endif
3378 3914
3379#if EV_CHECK_ENABLE 3915#if EV_CHECK_ENABLE
3380 /* queue check watchers, to be executed first */ 3916 /* queue check watchers, to be executed first */
3381 if (expect_false (checkcnt)) 3917 if (ecb_expect_false (checkcnt))
3382 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3918 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3383#endif 3919#endif
3384 3920
3385 EV_INVOKE_PENDING; 3921 EV_INVOKE_PENDING;
3386 } 3922 }
3387 while (expect_true ( 3923 while (ecb_expect_true (
3388 activecnt 3924 activecnt
3389 && !loop_done 3925 && !loop_done
3390 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3926 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3391 )); 3927 ));
3392 3928
… …
3399 3935
3400 return activecnt; 3936 return activecnt;
3401} 3937}
3402 3938
3403void 3939void
3404ev_break (EV_P_ int how) EV_THROW 3940ev_break (EV_P_ int how) EV_NOEXCEPT
3405{ 3941{
3406 loop_done = how; 3942 loop_done = how;
3407} 3943}
3408 3944
3409void 3945void
3410ev_ref (EV_P) EV_THROW 3946ev_ref (EV_P) EV_NOEXCEPT
3411{ 3947{
3412 ++activecnt; 3948 ++activecnt;
3413} 3949}
3414 3950
3415void 3951void
3416ev_unref (EV_P) EV_THROW 3952ev_unref (EV_P) EV_NOEXCEPT
3417{ 3953{
3418 --activecnt; 3954 --activecnt;
3419} 3955}
3420 3956
3421void 3957void
3422ev_now_update (EV_P) EV_THROW 3958ev_now_update (EV_P) EV_NOEXCEPT
3423{ 3959{
3424 time_update (EV_A_ 1e100); 3960 time_update (EV_A_ EV_TSTAMP_HUGE);
3425} 3961}
3426 3962
3427void 3963void
3428ev_suspend (EV_P) EV_THROW 3964ev_suspend (EV_P) EV_NOEXCEPT
3429{ 3965{
3430 ev_now_update (EV_A); 3966 ev_now_update (EV_A);
3431} 3967}
3432 3968
3433void 3969void
3434ev_resume (EV_P) EV_THROW 3970ev_resume (EV_P) EV_NOEXCEPT
3435{ 3971{
3436 ev_tstamp mn_prev = mn_now; 3972 ev_tstamp mn_prev = mn_now;
3437 3973
3438 ev_now_update (EV_A); 3974 ev_now_update (EV_A);
3439 timers_reschedule (EV_A_ mn_now - mn_prev); 3975 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3456inline_size void 3992inline_size void
3457wlist_del (WL *head, WL elem) 3993wlist_del (WL *head, WL elem)
3458{ 3994{
3459 while (*head) 3995 while (*head)
3460 { 3996 {
3461 if (expect_true (*head == elem)) 3997 if (ecb_expect_true (*head == elem))
3462 { 3998 {
3463 *head = elem->next; 3999 *head = elem->next;
3464 break; 4000 break;
3465 } 4001 }
3466 4002
… …
3478 w->pending = 0; 4014 w->pending = 0;
3479 } 4015 }
3480} 4016}
3481 4017
3482int 4018int
3483ev_clear_pending (EV_P_ void *w) EV_THROW 4019ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3484{ 4020{
3485 W w_ = (W)w; 4021 W w_ = (W)w;
3486 int pending = w_->pending; 4022 int pending = w_->pending;
3487 4023
3488 if (expect_true (pending)) 4024 if (ecb_expect_true (pending))
3489 { 4025 {
3490 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4026 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3491 p->w = (W)&pending_w; 4027 p->w = (W)&pending_w;
3492 w_->pending = 0; 4028 w_->pending = 0;
3493 return p->events; 4029 return p->events;
… …
3520 w->active = 0; 4056 w->active = 0;
3521} 4057}
3522 4058
3523/*****************************************************************************/ 4059/*****************************************************************************/
3524 4060
3525void noinline 4061ecb_noinline
4062void
3526ev_io_start (EV_P_ ev_io *w) EV_THROW 4063ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3527{ 4064{
3528 int fd = w->fd; 4065 int fd = w->fd;
3529 4066
3530 if (expect_false (ev_is_active (w))) 4067 if (ecb_expect_false (ev_is_active (w)))
3531 return; 4068 return;
3532 4069
3533 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4070 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3534 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4071 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3535 4072
4073#if EV_VERIFY >= 2
4074 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4075#endif
3536 EV_FREQUENT_CHECK; 4076 EV_FREQUENT_CHECK;
3537 4077
3538 ev_start (EV_A_ (W)w, 1); 4078 ev_start (EV_A_ (W)w, 1);
3539 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4079 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3540 wlist_add (&anfds[fd].head, (WL)w); 4080 wlist_add (&anfds[fd].head, (WL)w);
3541 4081
3542 /* common bug, apparently */ 4082 /* common bug, apparently */
3543 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4083 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3544 4084
… …
3546 w->events &= ~EV__IOFDSET; 4086 w->events &= ~EV__IOFDSET;
3547 4087
3548 EV_FREQUENT_CHECK; 4088 EV_FREQUENT_CHECK;
3549} 4089}
3550 4090
3551void noinline 4091ecb_noinline
4092void
3552ev_io_stop (EV_P_ ev_io *w) EV_THROW 4093ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3553{ 4094{
3554 clear_pending (EV_A_ (W)w); 4095 clear_pending (EV_A_ (W)w);
3555 if (expect_false (!ev_is_active (w))) 4096 if (ecb_expect_false (!ev_is_active (w)))
3556 return; 4097 return;
3557 4098
3558 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4099 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3559 4100
4101#if EV_VERIFY >= 2
4102 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4103#endif
3560 EV_FREQUENT_CHECK; 4104 EV_FREQUENT_CHECK;
3561 4105
3562 wlist_del (&anfds[w->fd].head, (WL)w); 4106 wlist_del (&anfds[w->fd].head, (WL)w);
3563 ev_stop (EV_A_ (W)w); 4107 ev_stop (EV_A_ (W)w);
3564 4108
3565 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4109 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3566 4110
3567 EV_FREQUENT_CHECK; 4111 EV_FREQUENT_CHECK;
3568} 4112}
3569 4113
3570void noinline 4114ecb_noinline
4115void
3571ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4116ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3572{ 4117{
3573 if (expect_false (ev_is_active (w))) 4118 if (ecb_expect_false (ev_is_active (w)))
3574 return; 4119 return;
3575 4120
3576 ev_at (w) += mn_now; 4121 ev_at (w) += mn_now;
3577 4122
3578 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4123 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3579 4124
3580 EV_FREQUENT_CHECK; 4125 EV_FREQUENT_CHECK;
3581 4126
3582 ++timercnt; 4127 ++timercnt;
3583 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4128 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3584 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4129 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3585 ANHE_w (timers [ev_active (w)]) = (WT)w; 4130 ANHE_w (timers [ev_active (w)]) = (WT)w;
3586 ANHE_at_cache (timers [ev_active (w)]); 4131 ANHE_at_cache (timers [ev_active (w)]);
3587 upheap (timers, ev_active (w)); 4132 upheap (timers, ev_active (w));
3588 4133
3589 EV_FREQUENT_CHECK; 4134 EV_FREQUENT_CHECK;
3590 4135
3591 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4136 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3592} 4137}
3593 4138
3594void noinline 4139ecb_noinline
4140void
3595ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4141ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3596{ 4142{
3597 clear_pending (EV_A_ (W)w); 4143 clear_pending (EV_A_ (W)w);
3598 if (expect_false (!ev_is_active (w))) 4144 if (ecb_expect_false (!ev_is_active (w)))
3599 return; 4145 return;
3600 4146
3601 EV_FREQUENT_CHECK; 4147 EV_FREQUENT_CHECK;
3602 4148
3603 { 4149 {
… …
3605 4151
3606 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4152 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3607 4153
3608 --timercnt; 4154 --timercnt;
3609 4155
3610 if (expect_true (active < timercnt + HEAP0)) 4156 if (ecb_expect_true (active < timercnt + HEAP0))
3611 { 4157 {
3612 timers [active] = timers [timercnt + HEAP0]; 4158 timers [active] = timers [timercnt + HEAP0];
3613 adjustheap (timers, timercnt, active); 4159 adjustheap (timers, timercnt, active);
3614 } 4160 }
3615 } 4161 }
… …
3619 ev_stop (EV_A_ (W)w); 4165 ev_stop (EV_A_ (W)w);
3620 4166
3621 EV_FREQUENT_CHECK; 4167 EV_FREQUENT_CHECK;
3622} 4168}
3623 4169
3624void noinline 4170ecb_noinline
4171void
3625ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4172ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3626{ 4173{
3627 EV_FREQUENT_CHECK; 4174 EV_FREQUENT_CHECK;
3628 4175
3629 clear_pending (EV_A_ (W)w); 4176 clear_pending (EV_A_ (W)w);
3630 4177
… …
3647 4194
3648 EV_FREQUENT_CHECK; 4195 EV_FREQUENT_CHECK;
3649} 4196}
3650 4197
3651ev_tstamp 4198ev_tstamp
3652ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4199ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3653{ 4200{
3654 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4201 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3655} 4202}
3656 4203
3657#if EV_PERIODIC_ENABLE 4204#if EV_PERIODIC_ENABLE
3658void noinline 4205ecb_noinline
4206void
3659ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4207ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3660{ 4208{
3661 if (expect_false (ev_is_active (w))) 4209 if (ecb_expect_false (ev_is_active (w)))
3662 return; 4210 return;
3663 4211
3664 if (w->reschedule_cb) 4212 if (w->reschedule_cb)
3665 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4213 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3666 else if (w->interval) 4214 else if (w->interval)
… …
3673 4221
3674 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3675 4223
3676 ++periodiccnt; 4224 ++periodiccnt;
3677 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4225 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3678 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4226 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3679 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4227 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3680 ANHE_at_cache (periodics [ev_active (w)]); 4228 ANHE_at_cache (periodics [ev_active (w)]);
3681 upheap (periodics, ev_active (w)); 4229 upheap (periodics, ev_active (w));
3682 4230
3683 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
3684 4232
3685 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4233 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3686} 4234}
3687 4235
3688void noinline 4236ecb_noinline
4237void
3689ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4238ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3690{ 4239{
3691 clear_pending (EV_A_ (W)w); 4240 clear_pending (EV_A_ (W)w);
3692 if (expect_false (!ev_is_active (w))) 4241 if (ecb_expect_false (!ev_is_active (w)))
3693 return; 4242 return;
3694 4243
3695 EV_FREQUENT_CHECK; 4244 EV_FREQUENT_CHECK;
3696 4245
3697 { 4246 {
… …
3699 4248
3700 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4249 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3701 4250
3702 --periodiccnt; 4251 --periodiccnt;
3703 4252
3704 if (expect_true (active < periodiccnt + HEAP0)) 4253 if (ecb_expect_true (active < periodiccnt + HEAP0))
3705 { 4254 {
3706 periodics [active] = periodics [periodiccnt + HEAP0]; 4255 periodics [active] = periodics [periodiccnt + HEAP0];
3707 adjustheap (periodics, periodiccnt, active); 4256 adjustheap (periodics, periodiccnt, active);
3708 } 4257 }
3709 } 4258 }
… …
3711 ev_stop (EV_A_ (W)w); 4260 ev_stop (EV_A_ (W)w);
3712 4261
3713 EV_FREQUENT_CHECK; 4262 EV_FREQUENT_CHECK;
3714} 4263}
3715 4264
3716void noinline 4265ecb_noinline
4266void
3717ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4267ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3718{ 4268{
3719 /* TODO: use adjustheap and recalculation */ 4269 /* TODO: use adjustheap and recalculation */
3720 ev_periodic_stop (EV_A_ w); 4270 ev_periodic_stop (EV_A_ w);
3721 ev_periodic_start (EV_A_ w); 4271 ev_periodic_start (EV_A_ w);
3722} 4272}
… …
3726# define SA_RESTART 0 4276# define SA_RESTART 0
3727#endif 4277#endif
3728 4278
3729#if EV_SIGNAL_ENABLE 4279#if EV_SIGNAL_ENABLE
3730 4280
3731void noinline 4281ecb_noinline
4282void
3732ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4283ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3733{ 4284{
3734 if (expect_false (ev_is_active (w))) 4285 if (ecb_expect_false (ev_is_active (w)))
3735 return; 4286 return;
3736 4287
3737 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4288 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3738 4289
3739#if EV_MULTIPLICITY 4290#if EV_MULTIPLICITY
… …
3808 } 4359 }
3809 4360
3810 EV_FREQUENT_CHECK; 4361 EV_FREQUENT_CHECK;
3811} 4362}
3812 4363
3813void noinline 4364ecb_noinline
4365void
3814ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4366ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3815{ 4367{
3816 clear_pending (EV_A_ (W)w); 4368 clear_pending (EV_A_ (W)w);
3817 if (expect_false (!ev_is_active (w))) 4369 if (ecb_expect_false (!ev_is_active (w)))
3818 return; 4370 return;
3819 4371
3820 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
3821 4373
3822 wlist_del (&signals [w->signum - 1].head, (WL)w); 4374 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3850#endif 4402#endif
3851 4403
3852#if EV_CHILD_ENABLE 4404#if EV_CHILD_ENABLE
3853 4405
3854void 4406void
3855ev_child_start (EV_P_ ev_child *w) EV_THROW 4407ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3856{ 4408{
3857#if EV_MULTIPLICITY 4409#if EV_MULTIPLICITY
3858 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4410 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3859#endif 4411#endif
3860 if (expect_false (ev_is_active (w))) 4412 if (ecb_expect_false (ev_is_active (w)))
3861 return; 4413 return;
3862 4414
3863 EV_FREQUENT_CHECK; 4415 EV_FREQUENT_CHECK;
3864 4416
3865 ev_start (EV_A_ (W)w, 1); 4417 ev_start (EV_A_ (W)w, 1);
… …
3867 4419
3868 EV_FREQUENT_CHECK; 4420 EV_FREQUENT_CHECK;
3869} 4421}
3870 4422
3871void 4423void
3872ev_child_stop (EV_P_ ev_child *w) EV_THROW 4424ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3873{ 4425{
3874 clear_pending (EV_A_ (W)w); 4426 clear_pending (EV_A_ (W)w);
3875 if (expect_false (!ev_is_active (w))) 4427 if (ecb_expect_false (!ev_is_active (w)))
3876 return; 4428 return;
3877 4429
3878 EV_FREQUENT_CHECK; 4430 EV_FREQUENT_CHECK;
3879 4431
3880 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4432 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3894 4446
3895#define DEF_STAT_INTERVAL 5.0074891 4447#define DEF_STAT_INTERVAL 5.0074891
3896#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4448#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3897#define MIN_STAT_INTERVAL 0.1074891 4449#define MIN_STAT_INTERVAL 0.1074891
3898 4450
3899static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4451ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3900 4452
3901#if EV_USE_INOTIFY 4453#if EV_USE_INOTIFY
3902 4454
3903/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4455/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3904# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4456# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3905 4457
3906static void noinline 4458ecb_noinline
4459static void
3907infy_add (EV_P_ ev_stat *w) 4460infy_add (EV_P_ ev_stat *w)
3908{ 4461{
3909 w->wd = inotify_add_watch (fs_fd, w->path, 4462 w->wd = inotify_add_watch (fs_fd, w->path,
3910 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4463 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3911 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4464 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3975 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4528 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3976 ev_timer_again (EV_A_ &w->timer); 4529 ev_timer_again (EV_A_ &w->timer);
3977 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4530 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3978} 4531}
3979 4532
3980static void noinline 4533ecb_noinline
4534static void
3981infy_del (EV_P_ ev_stat *w) 4535infy_del (EV_P_ ev_stat *w)
3982{ 4536{
3983 int slot; 4537 int slot;
3984 int wd = w->wd; 4538 int wd = w->wd;
3985 4539
… …
3992 4546
3993 /* remove this watcher, if others are watching it, they will rearm */ 4547 /* remove this watcher, if others are watching it, they will rearm */
3994 inotify_rm_watch (fs_fd, wd); 4548 inotify_rm_watch (fs_fd, wd);
3995} 4549}
3996 4550
3997static void noinline 4551ecb_noinline
4552static void
3998infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4553infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3999{ 4554{
4000 if (slot < 0) 4555 if (slot < 0)
4001 /* overflow, need to check for all hash slots */ 4556 /* overflow, need to check for all hash slots */
4002 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4557 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4038 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4593 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4039 ofs += sizeof (struct inotify_event) + ev->len; 4594 ofs += sizeof (struct inotify_event) + ev->len;
4040 } 4595 }
4041} 4596}
4042 4597
4043inline_size void ecb_cold 4598inline_size ecb_cold
4599void
4044ev_check_2625 (EV_P) 4600ev_check_2625 (EV_P)
4045{ 4601{
4046 /* kernels < 2.6.25 are borked 4602 /* kernels < 2.6.25 are borked
4047 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4603 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4048 */ 4604 */
… …
4138#else 4694#else
4139# define EV_LSTAT(p,b) lstat (p, b) 4695# define EV_LSTAT(p,b) lstat (p, b)
4140#endif 4696#endif
4141 4697
4142void 4698void
4143ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4699ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4144{ 4700{
4145 if (lstat (w->path, &w->attr) < 0) 4701 if (lstat (w->path, &w->attr) < 0)
4146 w->attr.st_nlink = 0; 4702 w->attr.st_nlink = 0;
4147 else if (!w->attr.st_nlink) 4703 else if (!w->attr.st_nlink)
4148 w->attr.st_nlink = 1; 4704 w->attr.st_nlink = 1;
4149} 4705}
4150 4706
4151static void noinline 4707ecb_noinline
4708static void
4152stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4709stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4153{ 4710{
4154 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4711 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4155 4712
4156 ev_statdata prev = w->attr; 4713 ev_statdata prev = w->attr;
… …
4187 ev_feed_event (EV_A_ w, EV_STAT); 4744 ev_feed_event (EV_A_ w, EV_STAT);
4188 } 4745 }
4189} 4746}
4190 4747
4191void 4748void
4192ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4749ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4193{ 4750{
4194 if (expect_false (ev_is_active (w))) 4751 if (ecb_expect_false (ev_is_active (w)))
4195 return; 4752 return;
4196 4753
4197 ev_stat_stat (EV_A_ w); 4754 ev_stat_stat (EV_A_ w);
4198 4755
4199 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4756 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4218 4775
4219 EV_FREQUENT_CHECK; 4776 EV_FREQUENT_CHECK;
4220} 4777}
4221 4778
4222void 4779void
4223ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4780ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4224{ 4781{
4225 clear_pending (EV_A_ (W)w); 4782 clear_pending (EV_A_ (W)w);
4226 if (expect_false (!ev_is_active (w))) 4783 if (ecb_expect_false (!ev_is_active (w)))
4227 return; 4784 return;
4228 4785
4229 EV_FREQUENT_CHECK; 4786 EV_FREQUENT_CHECK;
4230 4787
4231#if EV_USE_INOTIFY 4788#if EV_USE_INOTIFY
… …
4244} 4801}
4245#endif 4802#endif
4246 4803
4247#if EV_IDLE_ENABLE 4804#if EV_IDLE_ENABLE
4248void 4805void
4249ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4806ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4250{ 4807{
4251 if (expect_false (ev_is_active (w))) 4808 if (ecb_expect_false (ev_is_active (w)))
4252 return; 4809 return;
4253 4810
4254 pri_adjust (EV_A_ (W)w); 4811 pri_adjust (EV_A_ (W)w);
4255 4812
4256 EV_FREQUENT_CHECK; 4813 EV_FREQUENT_CHECK;
… …
4259 int active = ++idlecnt [ABSPRI (w)]; 4816 int active = ++idlecnt [ABSPRI (w)];
4260 4817
4261 ++idleall; 4818 ++idleall;
4262 ev_start (EV_A_ (W)w, active); 4819 ev_start (EV_A_ (W)w, active);
4263 4820
4264 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4821 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4265 idles [ABSPRI (w)][active - 1] = w; 4822 idles [ABSPRI (w)][active - 1] = w;
4266 } 4823 }
4267 4824
4268 EV_FREQUENT_CHECK; 4825 EV_FREQUENT_CHECK;
4269} 4826}
4270 4827
4271void 4828void
4272ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4829ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4273{ 4830{
4274 clear_pending (EV_A_ (W)w); 4831 clear_pending (EV_A_ (W)w);
4275 if (expect_false (!ev_is_active (w))) 4832 if (ecb_expect_false (!ev_is_active (w)))
4276 return; 4833 return;
4277 4834
4278 EV_FREQUENT_CHECK; 4835 EV_FREQUENT_CHECK;
4279 4836
4280 { 4837 {
… …
4291} 4848}
4292#endif 4849#endif
4293 4850
4294#if EV_PREPARE_ENABLE 4851#if EV_PREPARE_ENABLE
4295void 4852void
4296ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4853ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4297{ 4854{
4298 if (expect_false (ev_is_active (w))) 4855 if (ecb_expect_false (ev_is_active (w)))
4299 return; 4856 return;
4300 4857
4301 EV_FREQUENT_CHECK; 4858 EV_FREQUENT_CHECK;
4302 4859
4303 ev_start (EV_A_ (W)w, ++preparecnt); 4860 ev_start (EV_A_ (W)w, ++preparecnt);
4304 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4861 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4305 prepares [preparecnt - 1] = w; 4862 prepares [preparecnt - 1] = w;
4306 4863
4307 EV_FREQUENT_CHECK; 4864 EV_FREQUENT_CHECK;
4308} 4865}
4309 4866
4310void 4867void
4311ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4868ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4312{ 4869{
4313 clear_pending (EV_A_ (W)w); 4870 clear_pending (EV_A_ (W)w);
4314 if (expect_false (!ev_is_active (w))) 4871 if (ecb_expect_false (!ev_is_active (w)))
4315 return; 4872 return;
4316 4873
4317 EV_FREQUENT_CHECK; 4874 EV_FREQUENT_CHECK;
4318 4875
4319 { 4876 {
… …
4329} 4886}
4330#endif 4887#endif
4331 4888
4332#if EV_CHECK_ENABLE 4889#if EV_CHECK_ENABLE
4333void 4890void
4334ev_check_start (EV_P_ ev_check *w) EV_THROW 4891ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4335{ 4892{
4336 if (expect_false (ev_is_active (w))) 4893 if (ecb_expect_false (ev_is_active (w)))
4337 return; 4894 return;
4338 4895
4339 EV_FREQUENT_CHECK; 4896 EV_FREQUENT_CHECK;
4340 4897
4341 ev_start (EV_A_ (W)w, ++checkcnt); 4898 ev_start (EV_A_ (W)w, ++checkcnt);
4342 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4899 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4343 checks [checkcnt - 1] = w; 4900 checks [checkcnt - 1] = w;
4344 4901
4345 EV_FREQUENT_CHECK; 4902 EV_FREQUENT_CHECK;
4346} 4903}
4347 4904
4348void 4905void
4349ev_check_stop (EV_P_ ev_check *w) EV_THROW 4906ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4350{ 4907{
4351 clear_pending (EV_A_ (W)w); 4908 clear_pending (EV_A_ (W)w);
4352 if (expect_false (!ev_is_active (w))) 4909 if (ecb_expect_false (!ev_is_active (w)))
4353 return; 4910 return;
4354 4911
4355 EV_FREQUENT_CHECK; 4912 EV_FREQUENT_CHECK;
4356 4913
4357 { 4914 {
… …
4366 EV_FREQUENT_CHECK; 4923 EV_FREQUENT_CHECK;
4367} 4924}
4368#endif 4925#endif
4369 4926
4370#if EV_EMBED_ENABLE 4927#if EV_EMBED_ENABLE
4371void noinline 4928ecb_noinline
4929void
4372ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4930ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4373{ 4931{
4374 ev_run (w->other, EVRUN_NOWAIT); 4932 ev_run (w->other, EVRUN_NOWAIT);
4375} 4933}
4376 4934
4377static void 4935static void
… …
4425 ev_idle_stop (EV_A_ idle); 4983 ev_idle_stop (EV_A_ idle);
4426} 4984}
4427#endif 4985#endif
4428 4986
4429void 4987void
4430ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4988ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4431{ 4989{
4432 if (expect_false (ev_is_active (w))) 4990 if (ecb_expect_false (ev_is_active (w)))
4433 return; 4991 return;
4434 4992
4435 { 4993 {
4436 EV_P = w->other; 4994 EV_P = w->other;
4437 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4995 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4456 5014
4457 EV_FREQUENT_CHECK; 5015 EV_FREQUENT_CHECK;
4458} 5016}
4459 5017
4460void 5018void
4461ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5019ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4462{ 5020{
4463 clear_pending (EV_A_ (W)w); 5021 clear_pending (EV_A_ (W)w);
4464 if (expect_false (!ev_is_active (w))) 5022 if (ecb_expect_false (!ev_is_active (w)))
4465 return; 5023 return;
4466 5024
4467 EV_FREQUENT_CHECK; 5025 EV_FREQUENT_CHECK;
4468 5026
4469 ev_io_stop (EV_A_ &w->io); 5027 ev_io_stop (EV_A_ &w->io);
… …
4476} 5034}
4477#endif 5035#endif
4478 5036
4479#if EV_FORK_ENABLE 5037#if EV_FORK_ENABLE
4480void 5038void
4481ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5039ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4482{ 5040{
4483 if (expect_false (ev_is_active (w))) 5041 if (ecb_expect_false (ev_is_active (w)))
4484 return; 5042 return;
4485 5043
4486 EV_FREQUENT_CHECK; 5044 EV_FREQUENT_CHECK;
4487 5045
4488 ev_start (EV_A_ (W)w, ++forkcnt); 5046 ev_start (EV_A_ (W)w, ++forkcnt);
4489 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5047 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4490 forks [forkcnt - 1] = w; 5048 forks [forkcnt - 1] = w;
4491 5049
4492 EV_FREQUENT_CHECK; 5050 EV_FREQUENT_CHECK;
4493} 5051}
4494 5052
4495void 5053void
4496ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5054ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4497{ 5055{
4498 clear_pending (EV_A_ (W)w); 5056 clear_pending (EV_A_ (W)w);
4499 if (expect_false (!ev_is_active (w))) 5057 if (ecb_expect_false (!ev_is_active (w)))
4500 return; 5058 return;
4501 5059
4502 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4503 5061
4504 { 5062 {
… …
4514} 5072}
4515#endif 5073#endif
4516 5074
4517#if EV_CLEANUP_ENABLE 5075#if EV_CLEANUP_ENABLE
4518void 5076void
4519ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5077ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4520{ 5078{
4521 if (expect_false (ev_is_active (w))) 5079 if (ecb_expect_false (ev_is_active (w)))
4522 return; 5080 return;
4523 5081
4524 EV_FREQUENT_CHECK; 5082 EV_FREQUENT_CHECK;
4525 5083
4526 ev_start (EV_A_ (W)w, ++cleanupcnt); 5084 ev_start (EV_A_ (W)w, ++cleanupcnt);
4527 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5085 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4528 cleanups [cleanupcnt - 1] = w; 5086 cleanups [cleanupcnt - 1] = w;
4529 5087
4530 /* cleanup watchers should never keep a refcount on the loop */ 5088 /* cleanup watchers should never keep a refcount on the loop */
4531 ev_unref (EV_A); 5089 ev_unref (EV_A);
4532 EV_FREQUENT_CHECK; 5090 EV_FREQUENT_CHECK;
4533} 5091}
4534 5092
4535void 5093void
4536ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5094ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4537{ 5095{
4538 clear_pending (EV_A_ (W)w); 5096 clear_pending (EV_A_ (W)w);
4539 if (expect_false (!ev_is_active (w))) 5097 if (ecb_expect_false (!ev_is_active (w)))
4540 return; 5098 return;
4541 5099
4542 EV_FREQUENT_CHECK; 5100 EV_FREQUENT_CHECK;
4543 ev_ref (EV_A); 5101 ev_ref (EV_A);
4544 5102
… …
4555} 5113}
4556#endif 5114#endif
4557 5115
4558#if EV_ASYNC_ENABLE 5116#if EV_ASYNC_ENABLE
4559void 5117void
4560ev_async_start (EV_P_ ev_async *w) EV_THROW 5118ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4561{ 5119{
4562 if (expect_false (ev_is_active (w))) 5120 if (ecb_expect_false (ev_is_active (w)))
4563 return; 5121 return;
4564 5122
4565 w->sent = 0; 5123 w->sent = 0;
4566 5124
4567 evpipe_init (EV_A); 5125 evpipe_init (EV_A);
4568 5126
4569 EV_FREQUENT_CHECK; 5127 EV_FREQUENT_CHECK;
4570 5128
4571 ev_start (EV_A_ (W)w, ++asynccnt); 5129 ev_start (EV_A_ (W)w, ++asynccnt);
4572 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5130 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4573 asyncs [asynccnt - 1] = w; 5131 asyncs [asynccnt - 1] = w;
4574 5132
4575 EV_FREQUENT_CHECK; 5133 EV_FREQUENT_CHECK;
4576} 5134}
4577 5135
4578void 5136void
4579ev_async_stop (EV_P_ ev_async *w) EV_THROW 5137ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4580{ 5138{
4581 clear_pending (EV_A_ (W)w); 5139 clear_pending (EV_A_ (W)w);
4582 if (expect_false (!ev_is_active (w))) 5140 if (ecb_expect_false (!ev_is_active (w)))
4583 return; 5141 return;
4584 5142
4585 EV_FREQUENT_CHECK; 5143 EV_FREQUENT_CHECK;
4586 5144
4587 { 5145 {
… …
4595 5153
4596 EV_FREQUENT_CHECK; 5154 EV_FREQUENT_CHECK;
4597} 5155}
4598 5156
4599void 5157void
4600ev_async_send (EV_P_ ev_async *w) EV_THROW 5158ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4601{ 5159{
4602 w->sent = 1; 5160 w->sent = 1;
4603 evpipe_write (EV_A_ &async_pending); 5161 evpipe_write (EV_A_ &async_pending);
4604} 5162}
4605#endif 5163#endif
… …
4642 5200
4643 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5201 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4644} 5202}
4645 5203
4646void 5204void
4647ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5205ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4648{ 5206{
4649 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5207 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4650
4651 if (expect_false (!once))
4652 {
4653 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4654 return;
4655 }
4656 5208
4657 once->cb = cb; 5209 once->cb = cb;
4658 once->arg = arg; 5210 once->arg = arg;
4659 5211
4660 ev_init (&once->io, once_cb_io); 5212 ev_init (&once->io, once_cb_io);
… …
4673} 5225}
4674 5226
4675/*****************************************************************************/ 5227/*****************************************************************************/
4676 5228
4677#if EV_WALK_ENABLE 5229#if EV_WALK_ENABLE
4678void ecb_cold 5230ecb_cold
5231void
4679ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5232ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4680{ 5233{
4681 int i, j; 5234 int i, j;
4682 ev_watcher_list *wl, *wn; 5235 ev_watcher_list *wl, *wn;
4683 5236
4684 if (types & (EV_IO | EV_EMBED)) 5237 if (types & (EV_IO | EV_EMBED))

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