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

Comparing libev/ev.c (file contents):
Revision 1.454 by root, Fri Mar 1 11:13:22 2013 UTC vs.
Revision 1.514 by root, Fri Dec 20 05:20:50 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
165#endif 183#endif
184
185/* OS X, in its infinite idiocy, actually HARDCODES
186 * a limit of 1024 into their select. Where people have brains,
187 * OS X engineers apparently have a vacuum. Or maybe they were
188 * ordered to have a vacuum, or they do anything for money.
189 * This might help. Or not.
190 * Note that this must be defined early, as other include files
191 * will rely on this define as well.
192 */
193#define _DARWIN_UNLIMITED_SELECT 1
166 194
167#include <stdlib.h> 195#include <stdlib.h>
168#include <string.h> 196#include <string.h>
169#include <fcntl.h> 197#include <fcntl.h>
170#include <stddef.h> 198#include <stddef.h>
… …
208# ifndef EV_SELECT_IS_WINSOCKET 236# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 237# define EV_SELECT_IS_WINSOCKET 1
210# endif 238# endif
211# undef EV_AVOID_STDIO 239# undef EV_AVOID_STDIO
212#endif 240#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 241
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 242/* this block tries to deduce configuration from header-defined symbols and defaults */
223 243
224/* try to deduce the maximum number of signals on this platform */ 244/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 245#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 261#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 262# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 263#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 264# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 265#else
246# error "unable to find value for NSIG, please report" 266# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 267#endif
251 268
252#ifndef EV_USE_FLOOR 269#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 270# define EV_USE_FLOOR 0
254#endif 271#endif
255 272
256#ifndef EV_USE_CLOCK_SYSCALL 273#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 274# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 275# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 276# else
260# define EV_USE_CLOCK_SYSCALL 0 277# define EV_USE_CLOCK_SYSCALL 0
278# endif
279#endif
280
281#if !(_POSIX_TIMERS > 0)
282# ifndef EV_USE_MONOTONIC
283# define EV_USE_MONOTONIC 0
284# endif
285# ifndef EV_USE_REALTIME
286# define EV_USE_REALTIME 0
261# endif 287# endif
262#endif 288#endif
263 289
264#ifndef EV_USE_MONOTONIC 290#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 291# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 333
308#ifndef EV_USE_PORT 334#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 335# define EV_USE_PORT 0
310#endif 336#endif
311 337
338#ifndef EV_USE_LINUXAIO
339# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
340# define EV_USE_LINUXAIO 1
341# else
342# define EV_USE_LINUXAIO 0
343# endif
344#endif
345
346#ifndef EV_USE_IOURING
347# if __linux /* later checks might disable again */
348# define EV_USE_IOURING 1
349# else
350# define EV_USE_IOURING 0
351# endif
352#endif
353
312#ifndef EV_USE_INOTIFY 354#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 355# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 356# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 357# else
316# define EV_USE_INOTIFY 0 358# define EV_USE_INOTIFY 0
… …
357 399
358#ifndef EV_HEAP_CACHE_AT 400#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 401# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif 402#endif
361 403
362#ifdef ANDROID 404#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 405/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 406# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 407# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 408/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL 409# undef EV_USE_CLOCK_SYSCALL
… …
381# include <sys/syscall.h> 423# include <sys/syscall.h>
382# ifdef SYS_clock_gettime 424# ifdef SYS_clock_gettime
383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 425# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
384# undef EV_USE_MONOTONIC 426# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 1 427# define EV_USE_MONOTONIC 1
428# define EV_NEED_SYSCALL 1
386# else 429# else
387# undef EV_USE_CLOCK_SYSCALL 430# undef EV_USE_CLOCK_SYSCALL
388# define EV_USE_CLOCK_SYSCALL 0 431# define EV_USE_CLOCK_SYSCALL 0
389# endif 432# endif
390#endif 433#endif
… …
404#if !EV_STAT_ENABLE 447#if !EV_STAT_ENABLE
405# undef EV_USE_INOTIFY 448# undef EV_USE_INOTIFY
406# define EV_USE_INOTIFY 0 449# define EV_USE_INOTIFY 0
407#endif 450#endif
408 451
452#if __linux && EV_USE_IOURING
453# include <linux/version.h>
454# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
455# undef EV_USE_IOURING
456# define EV_USE_IOURING 0
457# endif
458#endif
459
409#if !EV_USE_NANOSLEEP 460#if !EV_USE_NANOSLEEP
410/* hp-ux has it in sys/time.h, which we unconditionally include above */ 461/* hp-ux has it in sys/time.h, which we unconditionally include above */
411# if !defined _WIN32 && !defined __hpux 462# if !defined _WIN32 && !defined __hpux
412# include <sys/select.h> 463# include <sys/select.h>
464# endif
465#endif
466
467#if EV_USE_LINUXAIO
468# include <sys/syscall.h>
469# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
470# define EV_NEED_SYSCALL 1
471# else
472# undef EV_USE_LINUXAIO
473# define EV_USE_LINUXAIO 0
474# endif
475#endif
476
477#if EV_USE_IOURING
478# include <sys/syscall.h>
479# if !SYS_io_uring_setup && __linux && !__alpha
480# define SYS_io_uring_setup 425
481# define SYS_io_uring_enter 426
482# define SYS_io_uring_wregister 427
483# endif
484# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
485# define EV_NEED_SYSCALL 1
486# else
487# undef EV_USE_IOURING
488# define EV_USE_IOURING 0
413# endif 489# endif
414#endif 490#endif
415 491
416#if EV_USE_INOTIFY 492#if EV_USE_INOTIFY
417# include <sys/statfs.h> 493# include <sys/statfs.h>
… …
459 uint32_t ssi_signo; 535 uint32_t ssi_signo;
460 char pad[128 - sizeof (uint32_t)]; 536 char pad[128 - sizeof (uint32_t)];
461}; 537};
462#endif 538#endif
463 539
464/**/ 540/*****************************************************************************/
465 541
466#if EV_VERIFY >= 3 542#if EV_VERIFY >= 3
467# define EV_FREQUENT_CHECK ev_verify (EV_A) 543# define EV_FREQUENT_CHECK ev_verify (EV_A)
468#else 544#else
469# define EV_FREQUENT_CHECK do { } while (0) 545# define EV_FREQUENT_CHECK do { } while (0)
… …
474 * This value is good at least till the year 4000. 550 * This value is good at least till the year 4000.
475 */ 551 */
476#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 552#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
477/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 553/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
478 554
479#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 555#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
480#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 556#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
481 557
558/* find a portable timestamp that is "always" in the future but fits into time_t.
559 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
560 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
561#define EV_TSTAMP_HUGE \
562 (sizeof (time_t) >= 8 ? 10000000000000. \
563 : 0 < (time_t)4294967295 ? 4294967295. \
564 : 2147483647.) \
565
566#ifndef EV_TS_CONST
567# define EV_TS_CONST(nv) nv
568# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
569# define EV_TS_FROM_USEC(us) us * 1e-6
482#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 570# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
483#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 571# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
572# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
573# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
574#endif
484 575
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 576/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 577/* ECB.H BEGIN */
487/* 578/*
488 * libecb - http://software.schmorp.de/pkg/libecb 579 * libecb - http://software.schmorp.de/pkg/libecb
489 * 580 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 581 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 582 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 583 * All rights reserved.
493 * 584 *
494 * Redistribution and use in source and binary forms, with or without modifica- 585 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 586 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 600 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 601 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 602 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 603 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 604 * OF THE POSSIBILITY OF SUCH DAMAGE.
605 *
606 * Alternatively, the contents of this file may be used under the terms of
607 * the GNU General Public License ("GPL") version 2 or any later version,
608 * in which case the provisions of the GPL are applicable instead of
609 * the above. If you wish to allow the use of your version of this file
610 * only under the terms of the GPL and not to allow others to use your
611 * version of this file under the BSD license, indicate your decision
612 * by deleting the provisions above and replace them with the notice
613 * and other provisions required by the GPL. If you do not delete the
614 * provisions above, a recipient may use your version of this file under
615 * either the BSD or the GPL.
514 */ 616 */
515 617
516#ifndef ECB_H 618#ifndef ECB_H
517#define ECB_H 619#define ECB_H
518 620
519/* 16 bits major, 16 bits minor */ 621/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010003 622#define ECB_VERSION 0x00010006
521 623
522#ifdef _WIN32 624#ifdef _WIN32
523 typedef signed char int8_t; 625 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 626 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 627 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 644 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 645 typedef int32_t intptr_t;
544 #endif 646 #endif
545#else 647#else
546 #include <inttypes.h> 648 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 649 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 650 #define ECB_PTRSIZE 8
549 #else 651 #else
550 #define ECB_PTRSIZE 4 652 #define ECB_PTRSIZE 4
551 #endif 653 #endif
552#endif 654#endif
553 655
656#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
657#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
658
554/* work around x32 idiocy by defining proper macros */ 659/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64 660#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
556 #if __ILP32 661 #if _ILP32
557 #define ECB_AMD64_X32 1 662 #define ECB_AMD64_X32 1
558 #else 663 #else
559 #define ECB_AMD64 1 664 #define ECB_AMD64 1
560 #endif 665 #endif
561#endif 666#endif
… …
565 * causing enormous grief in return for some better fake benchmark numbers. 670 * causing enormous grief in return for some better fake benchmark numbers.
566 * or so. 671 * or so.
567 * we try to detect these and simply assume they are not gcc - if they have 672 * we try to detect these and simply assume they are not gcc - if they have
568 * an issue with that they should have done it right in the first place. 673 * an issue with that they should have done it right in the first place.
569 */ 674 */
570#ifndef ECB_GCC_VERSION
571 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 675#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
572 #define ECB_GCC_VERSION(major,minor) 0 676 #define ECB_GCC_VERSION(major,minor) 0
573 #else 677#else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 678 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif 679#endif
576#endif
577 680
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 681#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
579#define ECB_C99 (__STDC_VERSION__ >= 199901L) 682
580#define ECB_C11 (__STDC_VERSION__ >= 201112L) 683#if __clang__ && defined __has_builtin
684 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
685#else
686 #define ECB_CLANG_BUILTIN(x) 0
687#endif
688
689#if __clang__ && defined __has_extension
690 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
691#else
692 #define ECB_CLANG_EXTENSION(x) 0
693#endif
694
581#define ECB_CPP (__cplusplus+0) 695#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L) 696#define ECB_CPP11 (__cplusplus >= 201103L)
697#define ECB_CPP14 (__cplusplus >= 201402L)
698#define ECB_CPP17 (__cplusplus >= 201703L)
699
700#if ECB_CPP
701 #define ECB_C 0
702 #define ECB_STDC_VERSION 0
703#else
704 #define ECB_C 1
705 #define ECB_STDC_VERSION __STDC_VERSION__
706#endif
707
708#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
709#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
710#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
583 711
584#if ECB_CPP 712#if ECB_CPP
585 #define ECB_EXTERN_C extern "C" 713 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 714 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END } 715 #define ECB_EXTERN_C_END }
… …
602 730
603#if ECB_NO_SMP 731#if ECB_NO_SMP
604 #define ECB_MEMORY_FENCE do { } while (0) 732 #define ECB_MEMORY_FENCE do { } while (0)
605#endif 733#endif
606 734
735/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
736#if __xlC__ && ECB_CPP
737 #include <builtins.h>
738#endif
739
740#if 1400 <= _MSC_VER
741 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
742#endif
743
607#ifndef ECB_MEMORY_FENCE 744#ifndef ECB_MEMORY_FENCE
608 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 745 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
746 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
609 #if __i386 || __i386__ 747 #if __i386 || __i386__
610 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 748 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
611 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 749 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
612 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 750 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
613 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 751 #elif ECB_GCC_AMD64
614 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 752 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
615 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 753 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
616 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 754 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
617 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 755 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
618 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 756 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
757 #elif defined __ARM_ARCH_2__ \
758 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
759 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
760 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
761 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
762 || defined __ARM_ARCH_5TEJ__
763 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
619 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 764 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 765 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
766 || defined __ARM_ARCH_6T2__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 767 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 768 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 769 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 770 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
625 #elif __sparc || __sparc__ 771 #elif __aarch64__
772 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
773 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 774 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 775 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 776 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__ 777 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 778 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
631 #elif defined __mips__ 779 #elif defined __mips__
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. */
632 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 782 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
633 #elif defined __alpha__ 783 #elif defined __alpha__
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 784 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
635 #elif defined __hppa__ 785 #elif defined __hppa__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 786 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 787 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
638 #elif defined __ia64__ 788 #elif defined __ia64__
639 #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")
640 #endif 796 #endif
641 #endif 797 #endif
642#endif 798#endif
643 799
644#ifndef ECB_MEMORY_FENCE 800#ifndef ECB_MEMORY_FENCE
645 #if ECB_GCC_VERSION(4,7) 801 #if ECB_GCC_VERSION(4,7)
646 /* see comment below (stdatomic.h) about the C11 memory model. */ 802 /* see comment below (stdatomic.h) about the C11 memory model. */
647 #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)
648 807
649 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 808 #elif ECB_CLANG_EXTENSION(c_atomic)
650 * without risking compile time errors with other compilers. We *could*
651 * define our own ecb_clang_has_feature, but I just can't be bothered to work
652 * around this shit time and again.
653 * #elif defined __clang && __has_feature (cxx_atomic)
654 * // see comment below (stdatomic.h) about the C11 memory model. 809 /* see comment below (stdatomic.h) about the C11 memory model. */
655 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 810 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
656 */ 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)
657 814
658 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 815 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
659 #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()
660 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 823 #elif _MSC_VER >= 1400 /* VC++ 2005 */
661 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 824 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
662 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 825 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
663 #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 */
664 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 827 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
665 #elif defined _WIN32 828 #elif defined _WIN32
666 #include <WinNT.h> 829 #include <WinNT.h>
667 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 830 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
668 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 831 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
669 #include <mbarrier.h> 832 #include <mbarrier.h>
670 #define ECB_MEMORY_FENCE __machine_rw_barrier () 833 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
671 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 834 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
672 #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 ()
673 #elif __xlC__ 837 #elif __xlC__
674 #define ECB_MEMORY_FENCE __sync () 838 #define ECB_MEMORY_FENCE __sync ()
675 #endif 839 #endif
676#endif 840#endif
677 841
678#ifndef ECB_MEMORY_FENCE 842#ifndef ECB_MEMORY_FENCE
679 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 843 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
680 /* 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, */
681 /* not just C11 atomics and atomic accesses */ 845 /* not just C11 atomics and atomic accesses */
682 #include <stdatomic.h> 846 #include <stdatomic.h>
683 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
684 /* any fence other than seq_cst, which isn't very efficient for us. */
685 /* Why that is, we don't know - either the C11 memory model is quite useless */
686 /* for most usages, or gcc and clang have a bug */
687 /* I *currently* lean towards the latter, and inefficiently implement */
688 /* all three of ecb's fences as a seq_cst fence */
689 #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)
690 #endif 850 #endif
691#endif 851#endif
692 852
693#ifndef ECB_MEMORY_FENCE 853#ifndef ECB_MEMORY_FENCE
694 #if !ECB_AVOID_PTHREADS 854 #if !ECB_AVOID_PTHREADS
… …
714 874
715#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 875#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
716 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 876 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
717#endif 877#endif
718 878
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
719/*****************************************************************************/ 883/*****************************************************************************/
720 884
721#if __cplusplus 885#if ECB_CPP
722 #define ecb_inline static inline 886 #define ecb_inline static inline
723#elif ECB_GCC_VERSION(2,5) 887#elif ECB_GCC_VERSION(2,5)
724 #define ecb_inline static __inline__ 888 #define ecb_inline static __inline__
725#elif ECB_C99 889#elif ECB_C99
726 #define ecb_inline static inline 890 #define ecb_inline static inline
… …
740 904
741#define ECB_CONCAT_(a, b) a ## b 905#define ECB_CONCAT_(a, b) a ## b
742#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 906#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
743#define ECB_STRINGIFY_(a) # a 907#define ECB_STRINGIFY_(a) # a
744#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))
745 910
746#define ecb_function_ ecb_inline 911#define ecb_function_ ecb_inline
747 912
748#if ECB_GCC_VERSION(3,1) 913#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
749 #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)
750 #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)
751 #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)
752 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 936 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
753#else 937#else
754 #define ecb_attribute(attrlist)
755 #define ecb_is_constant(expr) 0
756 #define ecb_expect(expr,value) (expr)
757 #define ecb_prefetch(addr,rw,locality) 938 #define ecb_prefetch(addr,rw,locality)
758#endif 939#endif
759 940
760/* no emulation for ecb_decltype */ 941/* no emulation for ecb_decltype */
761#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; };
762 #define ecb_decltype(x) __decltype(x) 945 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
763#elif ECB_GCC_VERSION(3,0) 946#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
764 #define ecb_decltype(x) __typeof(x) 947 #define ecb_decltype(x) __typeof__ (x)
765#endif 948#endif
766 949
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
767#define ecb_noinline ecb_attribute ((__noinline__)) 967 #define ecb_noinline ecb_attribute ((__noinline__))
968#endif
969
768#define ecb_unused ecb_attribute ((__unused__)) 970#define ecb_unused ecb_attribute ((__unused__))
769#define ecb_const ecb_attribute ((__const__)) 971#define ecb_const ecb_attribute ((__const__))
770#define ecb_pure ecb_attribute ((__pure__)) 972#define ecb_pure ecb_attribute ((__pure__))
771 973
772#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 */
773 #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)
774#else 982#else
775 #define ecb_noreturn ecb_attribute ((__noreturn__)) 983 #define ecb_noreturn ecb_attribute ((__noreturn__))
776#endif 984#endif
777 985
778#if ECB_GCC_VERSION(4,3) 986#if ECB_GCC_VERSION(4,3)
… …
793/* for compatibility to the rest of the world */ 1001/* for compatibility to the rest of the world */
794#define ecb_likely(expr) ecb_expect_true (expr) 1002#define ecb_likely(expr) ecb_expect_true (expr)
795#define ecb_unlikely(expr) ecb_expect_false (expr) 1003#define ecb_unlikely(expr) ecb_expect_false (expr)
796 1004
797/* count trailing zero bits and count # of one bits */ 1005/* count trailing zero bits and count # of one bits */
798#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))
799 /* 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 */
800 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 1011 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
801 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 1012 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
802 #define ecb_ctz32(x) __builtin_ctz (x) 1013 #define ecb_ctz32(x) __builtin_ctz (x)
803 #define ecb_ctz64(x) __builtin_ctzll (x) 1014 #define ecb_ctz64(x) __builtin_ctzll (x)
804 #define ecb_popcount32(x) __builtin_popcount (x) 1015 #define ecb_popcount32(x) __builtin_popcount (x)
805 /* no popcountll */ 1016 /* no popcountll */
806#else 1017#else
807 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1018 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
808 ecb_function_ int 1019 ecb_function_ ecb_const int
809 ecb_ctz32 (uint32_t x) 1020 ecb_ctz32 (uint32_t x)
810 { 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
811 int r = 0; 1027 int r = 0;
812 1028
813 x &= ~x + 1; /* this isolates the lowest bit */ 1029 x &= ~x + 1; /* this isolates the lowest bit */
814 1030
815#if ECB_branchless_on_i386 1031#if ECB_branchless_on_i386
… …
825 if (x & 0xff00ff00) r += 8; 1041 if (x & 0xff00ff00) r += 8;
826 if (x & 0xffff0000) r += 16; 1042 if (x & 0xffff0000) r += 16;
827#endif 1043#endif
828 1044
829 return r; 1045 return r;
1046#endif
830 } 1047 }
831 1048
832 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1049 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
833 ecb_function_ int 1050 ecb_function_ ecb_const int
834 ecb_ctz64 (uint64_t x) 1051 ecb_ctz64 (uint64_t x)
835 { 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
836 int shift = x & 0xffffffffU ? 0 : 32; 1058 int shift = x & 0xffffffff ? 0 : 32;
837 return ecb_ctz32 (x >> shift) + shift; 1059 return ecb_ctz32 (x >> shift) + shift;
1060#endif
838 } 1061 }
839 1062
840 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1063 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
841 ecb_function_ int 1064 ecb_function_ ecb_const int
842 ecb_popcount32 (uint32_t x) 1065 ecb_popcount32 (uint32_t x)
843 { 1066 {
844 x -= (x >> 1) & 0x55555555; 1067 x -= (x >> 1) & 0x55555555;
845 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1068 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
846 x = ((x >> 4) + x) & 0x0f0f0f0f; 1069 x = ((x >> 4) + x) & 0x0f0f0f0f;
847 x *= 0x01010101; 1070 x *= 0x01010101;
848 1071
849 return x >> 24; 1072 return x >> 24;
850 } 1073 }
851 1074
852 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1075 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
853 ecb_function_ int ecb_ld32 (uint32_t x) 1076 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
854 { 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
855 int r = 0; 1083 int r = 0;
856 1084
857 if (x >> 16) { x >>= 16; r += 16; } 1085 if (x >> 16) { x >>= 16; r += 16; }
858 if (x >> 8) { x >>= 8; r += 8; } 1086 if (x >> 8) { x >>= 8; r += 8; }
859 if (x >> 4) { x >>= 4; r += 4; } 1087 if (x >> 4) { x >>= 4; r += 4; }
860 if (x >> 2) { x >>= 2; r += 2; } 1088 if (x >> 2) { x >>= 2; r += 2; }
861 if (x >> 1) { r += 1; } 1089 if (x >> 1) { r += 1; }
862 1090
863 return r; 1091 return r;
1092#endif
864 } 1093 }
865 1094
866 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1095 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
867 ecb_function_ int ecb_ld64 (uint64_t x) 1096 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
868 { 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
869 int r = 0; 1103 int r = 0;
870 1104
871 if (x >> 32) { x >>= 32; r += 32; } 1105 if (x >> 32) { x >>= 32; r += 32; }
872 1106
873 return r + ecb_ld32 (x); 1107 return r + ecb_ld32 (x);
1108#endif
874 } 1109 }
875#endif 1110#endif
876 1111
877ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1112ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
878ecb_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)); }
879ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1114ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
880ecb_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)); }
881 1116
882ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1117ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
883ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1118ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
884{ 1119{
885 return ( (x * 0x0802U & 0x22110U) 1120 return ( (x * 0x0802U & 0x22110U)
886 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1121 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
887} 1122}
888 1123
889ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1124ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
890ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1125ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
891{ 1126{
892 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1127 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
893 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1128 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
894 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1129 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
895 x = ( x >> 8 ) | ( x << 8); 1130 x = ( x >> 8 ) | ( x << 8);
896 1131
897 return x; 1132 return x;
898} 1133}
899 1134
900ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1135ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
901ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1136ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
902{ 1137{
903 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1138 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
904 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1139 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
905 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1140 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
906 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1141 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
909 return x; 1144 return x;
910} 1145}
911 1146
912/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1147/* popcount64 is only available on 64 bit cpus as gcc builtin */
913/* so for this version we are lazy */ 1148/* so for this version we are lazy */
914ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1149ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
915ecb_function_ int 1150ecb_function_ ecb_const int
916ecb_popcount64 (uint64_t x) 1151ecb_popcount64 (uint64_t x)
917{ 1152{
918 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1153 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
919} 1154}
920 1155
921ecb_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);
922ecb_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);
923ecb_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);
924ecb_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);
925ecb_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);
926ecb_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);
927ecb_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);
928ecb_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);
929 1164
930ecb_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); }
931ecb_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); }
932ecb_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); }
933ecb_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); }
934ecb_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); }
935ecb_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); }
936ecb_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); }
937ecb_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); }
938 1173
939#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
940 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1178 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1179 #endif
941 #define ecb_bswap32(x) __builtin_bswap32 (x) 1180 #define ecb_bswap32(x) __builtin_bswap32 (x)
942 #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)))
943#else 1187#else
944 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1188 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
945 ecb_function_ uint16_t 1189 ecb_function_ ecb_const uint16_t
946 ecb_bswap16 (uint16_t x) 1190 ecb_bswap16 (uint16_t x)
947 { 1191 {
948 return ecb_rotl16 (x, 8); 1192 return ecb_rotl16 (x, 8);
949 } 1193 }
950 1194
951 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1195 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
952 ecb_function_ uint32_t 1196 ecb_function_ ecb_const uint32_t
953 ecb_bswap32 (uint32_t x) 1197 ecb_bswap32 (uint32_t x)
954 { 1198 {
955 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1199 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
956 } 1200 }
957 1201
958 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1202 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
959 ecb_function_ uint64_t 1203 ecb_function_ ecb_const uint64_t
960 ecb_bswap64 (uint64_t x) 1204 ecb_bswap64 (uint64_t x)
961 { 1205 {
962 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1206 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
963 } 1207 }
964#endif 1208#endif
965 1209
966#if ECB_GCC_VERSION(4,5) 1210#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
967 #define ecb_unreachable() __builtin_unreachable () 1211 #define ecb_unreachable() __builtin_unreachable ()
968#else 1212#else
969 /* 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 :/ */
970 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1214 ecb_inline ecb_noreturn void ecb_unreachable (void);
971 ecb_inline void ecb_unreachable (void) { } 1215 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
972#endif 1216#endif
973 1217
974/* try to tell the compiler that some condition is definitely true */ 1218/* try to tell the compiler that some condition is definitely true */
975#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1219#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
976 1220
977ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1221ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
978ecb_inline unsigned char 1222ecb_inline ecb_const uint32_t
979ecb_byteorder_helper (void) 1223ecb_byteorder_helper (void)
980{ 1224{
981 /* the union code still generates code under pressure in gcc, */ 1225 /* the union code still generates code under pressure in gcc, */
982 /* but less than using pointers, and always seems to */ 1226 /* but less than using pointers, and always seems to */
983 /* successfully return a constant. */ 1227 /* successfully return a constant. */
984 /* the reason why we have this horrible preprocessor mess */ 1228 /* the reason why we have this horrible preprocessor mess */
985 /* 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 */
986 /* or when using a recent enough gcc version (>= 4.6) */ 1230 /* or when using a recent enough gcc version (>= 4.6) */
987#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
988 return 0x44;
989#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
990 return 0x44; 1234 return 0x44332211;
991#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
992 return 0x11; 1238 return 0x11223344;
993#else 1239#else
994 union 1240 union
995 { 1241 {
1242 uint8_t c[4];
996 uint32_t i; 1243 uint32_t u;
997 uint8_t c;
998 } u = { 0x11223344 }; 1244 } u = { 0x11, 0x22, 0x33, 0x44 };
999 return u.c; 1245 return u.u;
1000#endif 1246#endif
1001} 1247}
1002 1248
1003ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1249ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1004ecb_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; }
1005ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1251ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1006ecb_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; }
1007 1253
1008#if ECB_GCC_VERSION(3,0) || ECB_C99 1254#if ECB_GCC_VERSION(3,0) || ECB_C99
1009 #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))
1010#else 1256#else
1011 #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)))
1012#endif 1258#endif
1013 1259
1014#if __cplusplus 1260#if ECB_CPP
1015 template<typename T> 1261 template<typename T>
1016 static inline T ecb_div_rd (T val, T div) 1262 static inline T ecb_div_rd (T val, T div)
1017 { 1263 {
1018 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1264 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1019 } 1265 }
… …
1036 } 1282 }
1037#else 1283#else
1038 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1284 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1039#endif 1285#endif
1040 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
1041/*******************************************************************************/ 1383/*******************************************************************************/
1042/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1384/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1043 1385
1044/* basically, everything uses "ieee pure-endian" floating point numbers */ 1386/* basically, everything uses "ieee pure-endian" floating point numbers */
1045/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1387/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1046#if 0 \ 1388#if 0 \
1047 || __i386 || __i386__ \ 1389 || __i386 || __i386__ \
1048 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1390 || ECB_GCC_AMD64 \
1049 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1391 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1050 || defined __arm__ && defined __ARM_EABI__ \
1051 || defined __s390__ || defined __s390x__ \ 1392 || defined __s390__ || defined __s390x__ \
1052 || defined __mips__ \ 1393 || defined __mips__ \
1053 || defined __alpha__ \ 1394 || defined __alpha__ \
1054 || defined __hppa__ \ 1395 || defined __hppa__ \
1055 || defined __ia64__ \ 1396 || defined __ia64__ \
1397 || defined __m68k__ \
1398 || defined __m88k__ \
1399 || defined __sh__ \
1056 || 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__
1057 #define ECB_STDFP 1 1403 #define ECB_STDFP 1
1058 #include <string.h> /* for memcpy */ 1404 #include <string.h> /* for memcpy */
1059#else 1405#else
1060 #define ECB_STDFP 0 1406 #define ECB_STDFP 0
1061 #include <math.h> /* for frexp*, ldexp* */
1062#endif 1407#endif
1063 1408
1064#ifndef ECB_NO_LIBM 1409#ifndef ECB_NO_LIBM
1065 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
1066 /* convert a float to ieee single/binary32 */ 1434 /* convert a float to ieee single/binary32 */
1067 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);
1068 ecb_function_ uint32_t 1436 ecb_function_ ecb_const uint32_t
1069 ecb_float_to_binary32 (float x) 1437 ecb_float_to_binary32 (float x)
1070 { 1438 {
1071 uint32_t r; 1439 uint32_t r;
1072 1440
1073 #if ECB_STDFP 1441 #if ECB_STDFP
… …
1080 if (x == 0e0f ) return 0x00000000U; 1448 if (x == 0e0f ) return 0x00000000U;
1081 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1449 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1082 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1450 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1083 if (x != x ) return 0x7fbfffffU; 1451 if (x != x ) return 0x7fbfffffU;
1084 1452
1085 m = frexpf (x, &e) * 0x1000000U; 1453 m = ecb_frexpf (x, &e) * 0x1000000U;
1086 1454
1087 r = m & 0x80000000U; 1455 r = m & 0x80000000U;
1088 1456
1089 if (r) 1457 if (r)
1090 m = -m; 1458 m = -m;
… …
1102 1470
1103 return r; 1471 return r;
1104 } 1472 }
1105 1473
1106 /* converts an ieee single/binary32 to a float */ 1474 /* converts an ieee single/binary32 to a float */
1107 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);
1108 ecb_function_ float 1476 ecb_function_ ecb_const float
1109 ecb_binary32_to_float (uint32_t x) 1477 ecb_binary32_to_float (uint32_t x)
1110 { 1478 {
1111 float r; 1479 float r;
1112 1480
1113 #if ECB_STDFP 1481 #if ECB_STDFP
… …
1123 x |= 0x800000U; 1491 x |= 0x800000U;
1124 else 1492 else
1125 e = 1; 1493 e = 1;
1126 1494
1127 /* 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 */
1128 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1496 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1129 1497
1130 r = neg ? -r : r; 1498 r = neg ? -r : r;
1131 #endif 1499 #endif
1132 1500
1133 return r; 1501 return r;
1134 } 1502 }
1135 1503
1136 /* convert a double to ieee double/binary64 */ 1504 /* convert a double to ieee double/binary64 */
1137 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);
1138 ecb_function_ uint64_t 1506 ecb_function_ ecb_const uint64_t
1139 ecb_double_to_binary64 (double x) 1507 ecb_double_to_binary64 (double x)
1140 { 1508 {
1141 uint64_t r; 1509 uint64_t r;
1142 1510
1143 #if ECB_STDFP 1511 #if ECB_STDFP
… …
1172 1540
1173 return r; 1541 return r;
1174 } 1542 }
1175 1543
1176 /* converts an ieee double/binary64 to a double */ 1544 /* converts an ieee double/binary64 to a double */
1177 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);
1178 ecb_function_ double 1546 ecb_function_ ecb_const double
1179 ecb_binary64_to_double (uint64_t x) 1547 ecb_binary64_to_double (uint64_t x)
1180 { 1548 {
1181 double r; 1549 double r;
1182 1550
1183 #if ECB_STDFP 1551 #if ECB_STDFP
… …
1201 #endif 1569 #endif
1202 1570
1203 return r; 1571 return r;
1204 } 1572 }
1205 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
1206#endif 1590#endif
1207 1591
1208#endif 1592#endif
1209 1593
1210/* ECB.H END */ 1594/* ECB.H END */
1211 1595
1212#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1596#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1213/* 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
1214 * 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
1215 * 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
1216 * libev, in which cases the memory fences become nops. 1600 * libev, in which cases the memory fences become nops.
1217 * alternatively, you can remove this #error and link against libpthread, 1601 * alternatively, you can remove this #error and link against libpthread,
1218 * which will then provide the memory fences. 1602 * which will then provide the memory fences.
1219 */ 1603 */
1220# error "memory fences not defined for your architecture, please report" 1604# error "memory fences not defined for your architecture, please report"
… …
1224# define ECB_MEMORY_FENCE do { } while (0) 1608# define ECB_MEMORY_FENCE do { } while (0)
1225# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1609# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1226# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1610# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1227#endif 1611#endif
1228 1612
1229#define expect_false(cond) ecb_expect_false (cond)
1230#define expect_true(cond) ecb_expect_true (cond)
1231#define noinline ecb_noinline
1232
1233#define inline_size ecb_inline 1613#define inline_size ecb_inline
1234 1614
1235#if EV_FEATURE_CODE 1615#if EV_FEATURE_CODE
1236# define inline_speed ecb_inline 1616# define inline_speed ecb_inline
1237#else 1617#else
1238# define inline_speed static noinline 1618# define inline_speed ecb_noinline static
1239#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/*****************************************************************************/
1240 1686
1241#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1687#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1242 1688
1243#if EV_MINPRI == EV_MAXPRI 1689#if EV_MINPRI == EV_MAXPRI
1244# define ABSPRI(w) (((W)w), 0) 1690# define ABSPRI(w) (((W)w), 0)
1245#else 1691#else
1246# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1692# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1247#endif 1693#endif
1248 1694
1249#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1695#define EMPTY /* required for microsofts broken pseudo-c compiler */
1250#define EMPTY2(a,b) /* used to suppress some warnings */
1251 1696
1252typedef ev_watcher *W; 1697typedef ev_watcher *W;
1253typedef ev_watcher_list *WL; 1698typedef ev_watcher_list *WL;
1254typedef ev_watcher_time *WT; 1699typedef ev_watcher_time *WT;
1255 1700
… …
1280# include "ev_win32.c" 1725# include "ev_win32.c"
1281#endif 1726#endif
1282 1727
1283/*****************************************************************************/ 1728/*****************************************************************************/
1284 1729
1730#if EV_USE_LINUXAIO
1731# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1732#endif
1733
1285/* define a suitable floor function (only used by periodics atm) */ 1734/* define a suitable floor function (only used by periodics atm) */
1286 1735
1287#if EV_USE_FLOOR 1736#if EV_USE_FLOOR
1288# include <math.h> 1737# include <math.h>
1289# define ev_floor(v) floor (v) 1738# define ev_floor(v) floor (v)
1290#else 1739#else
1291 1740
1292#include <float.h> 1741#include <float.h>
1293 1742
1294/* 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
1295static ev_tstamp noinline 1745static ev_tstamp
1296ev_floor (ev_tstamp v) 1746ev_floor (ev_tstamp v)
1297{ 1747{
1298 /* the choice of shift factor is not terribly important */ 1748 /* the choice of shift factor is not terribly important */
1299#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1749#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1300 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1750 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1301#else 1751#else
1302 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1752 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1303#endif 1753#endif
1304 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
1305 /* argument too large for an unsigned long? */ 1763 /* argument too large for an unsigned long? then reduce it */
1306 if (expect_false (v >= shift)) 1764 if (ecb_expect_false (v >= shift))
1307 { 1765 {
1308 ev_tstamp f; 1766 ev_tstamp f;
1309 1767
1310 if (v == v - 1.) 1768 if (v == v - 1.)
1311 return v; /* very large number */ 1769 return v; /* very large numbers are assumed to be integer */
1312 1770
1313 f = shift * ev_floor (v * (1. / shift)); 1771 f = shift * ev_floor (v * (1. / shift));
1314 return f + ev_floor (v - f); 1772 return f + ev_floor (v - f);
1315 } 1773 }
1316 1774
1317 /* special treatment for negative args? */
1318 if (expect_false (v < 0.))
1319 {
1320 ev_tstamp f = -ev_floor (-v);
1321
1322 return f - (f == v ? 0 : 1);
1323 }
1324
1325 /* fits into an unsigned long */ 1775 /* fits into an unsigned long */
1326 return (unsigned long)v; 1776 return (unsigned long)v;
1327} 1777}
1328 1778
1329#endif 1779#endif
… …
1332 1782
1333#ifdef __linux 1783#ifdef __linux
1334# include <sys/utsname.h> 1784# include <sys/utsname.h>
1335#endif 1785#endif
1336 1786
1337static unsigned int noinline ecb_cold 1787ecb_noinline ecb_cold
1788static unsigned int
1338ev_linux_version (void) 1789ev_linux_version (void)
1339{ 1790{
1340#ifdef __linux 1791#ifdef __linux
1341 unsigned int v = 0; 1792 unsigned int v = 0;
1342 struct utsname buf; 1793 struct utsname buf;
… …
1371} 1822}
1372 1823
1373/*****************************************************************************/ 1824/*****************************************************************************/
1374 1825
1375#if EV_AVOID_STDIO 1826#if EV_AVOID_STDIO
1376static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1377ev_printerr (const char *msg) 1829ev_printerr (const char *msg)
1378{ 1830{
1379 write (STDERR_FILENO, msg, strlen (msg)); 1831 write (STDERR_FILENO, msg, strlen (msg));
1380} 1832}
1381#endif 1833#endif
1382 1834
1383static void (*syserr_cb)(const char *msg) EV_THROW; 1835static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1384 1836
1385void ecb_cold 1837ecb_cold
1838void
1386ev_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
1387{ 1840{
1388 syserr_cb = cb; 1841 syserr_cb = cb;
1389} 1842}
1390 1843
1391static void noinline ecb_cold 1844ecb_noinline ecb_cold
1845static void
1392ev_syserr (const char *msg) 1846ev_syserr (const char *msg)
1393{ 1847{
1394 if (!msg) 1848 if (!msg)
1395 msg = "(libev) system error"; 1849 msg = "(libev) system error";
1396 1850
… …
1409 abort (); 1863 abort ();
1410 } 1864 }
1411} 1865}
1412 1866
1413static void * 1867static void *
1414ev_realloc_emul (void *ptr, long size) EV_THROW 1868ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1415{ 1869{
1416 /* some systems, notably openbsd and darwin, fail to properly 1870 /* some systems, notably openbsd and darwin, fail to properly
1417 * 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
1418 * the single unix specification, so work around them here. 1872 * the single unix specification, so work around them here.
1419 * recently, also (at least) fedora and debian started breaking it, 1873 * recently, also (at least) fedora and debian started breaking it,
… …
1425 1879
1426 free (ptr); 1880 free (ptr);
1427 return 0; 1881 return 0;
1428} 1882}
1429 1883
1430static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1884static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1431 1885
1432void ecb_cold 1886ecb_cold
1887void
1433ev_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
1434{ 1889{
1435 alloc = cb; 1890 alloc = cb;
1436} 1891}
1437 1892
1438inline_speed void * 1893inline_speed void *
… …
1465typedef struct 1920typedef struct
1466{ 1921{
1467 WL head; 1922 WL head;
1468 unsigned char events; /* the events watched for */ 1923 unsigned char events; /* the events watched for */
1469 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) */
1470 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 */
1471 unsigned char unused; 1926 unsigned char eflags; /* flags field for use by backends */
1472#if EV_USE_EPOLL 1927#if EV_USE_EPOLL
1473 unsigned int egen; /* generation counter to counter epoll bugs */ 1928 unsigned int egen; /* generation counter to counter epoll bugs */
1474#endif 1929#endif
1475#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1930#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1476 SOCKET handle; 1931 SOCKET handle;
… …
1530 static struct ev_loop default_loop_struct; 1985 static struct ev_loop default_loop_struct;
1531 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 */
1532 1987
1533#else 1988#else
1534 1989
1535 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 */
1536 #define VAR(name,decl) static decl; 1991 #define VAR(name,decl) static decl;
1537 #include "ev_vars.h" 1992 #include "ev_vars.h"
1538 #undef VAR 1993 #undef VAR
1539 1994
1540 static int ev_default_loop_ptr; 1995 static int ev_default_loop_ptr;
1541 1996
1542#endif 1997#endif
1543 1998
1544#if EV_FEATURE_API 1999#if EV_FEATURE_API
1545# 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)
1546# 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)
1547# define EV_INVOKE_PENDING invoke_cb (EV_A) 2002# define EV_INVOKE_PENDING invoke_cb (EV_A)
1548#else 2003#else
1549# define EV_RELEASE_CB (void)0 2004# define EV_RELEASE_CB (void)0
1550# define EV_ACQUIRE_CB (void)0 2005# define EV_ACQUIRE_CB (void)0
1551# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2006# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1555 2010
1556/*****************************************************************************/ 2011/*****************************************************************************/
1557 2012
1558#ifndef EV_HAVE_EV_TIME 2013#ifndef EV_HAVE_EV_TIME
1559ev_tstamp 2014ev_tstamp
1560ev_time (void) EV_THROW 2015ev_time (void) EV_NOEXCEPT
1561{ 2016{
1562#if EV_USE_REALTIME 2017#if EV_USE_REALTIME
1563 if (expect_true (have_realtime)) 2018 if (ecb_expect_true (have_realtime))
1564 { 2019 {
1565 struct timespec ts; 2020 struct timespec ts;
1566 clock_gettime (CLOCK_REALTIME, &ts); 2021 clock_gettime (CLOCK_REALTIME, &ts);
1567 return ts.tv_sec + ts.tv_nsec * 1e-9; 2022 return EV_TS_GET (ts);
1568 } 2023 }
1569#endif 2024#endif
1570 2025
2026 {
1571 struct timeval tv; 2027 struct timeval tv;
1572 gettimeofday (&tv, 0); 2028 gettimeofday (&tv, 0);
1573 return tv.tv_sec + tv.tv_usec * 1e-6; 2029 return EV_TV_GET (tv);
2030 }
1574} 2031}
1575#endif 2032#endif
1576 2033
1577inline_size ev_tstamp 2034inline_size ev_tstamp
1578get_clock (void) 2035get_clock (void)
1579{ 2036{
1580#if EV_USE_MONOTONIC 2037#if EV_USE_MONOTONIC
1581 if (expect_true (have_monotonic)) 2038 if (ecb_expect_true (have_monotonic))
1582 { 2039 {
1583 struct timespec ts; 2040 struct timespec ts;
1584 clock_gettime (CLOCK_MONOTONIC, &ts); 2041 clock_gettime (CLOCK_MONOTONIC, &ts);
1585 return ts.tv_sec + ts.tv_nsec * 1e-9; 2042 return EV_TS_GET (ts);
1586 } 2043 }
1587#endif 2044#endif
1588 2045
1589 return ev_time (); 2046 return ev_time ();
1590} 2047}
1591 2048
1592#if EV_MULTIPLICITY 2049#if EV_MULTIPLICITY
1593ev_tstamp 2050ev_tstamp
1594ev_now (EV_P) EV_THROW 2051ev_now (EV_P) EV_NOEXCEPT
1595{ 2052{
1596 return ev_rt_now; 2053 return ev_rt_now;
1597} 2054}
1598#endif 2055#endif
1599 2056
1600void 2057void
1601ev_sleep (ev_tstamp delay) EV_THROW 2058ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1602{ 2059{
1603 if (delay > 0.) 2060 if (delay > EV_TS_CONST (0.))
1604 { 2061 {
1605#if EV_USE_NANOSLEEP 2062#if EV_USE_NANOSLEEP
1606 struct timespec ts; 2063 struct timespec ts;
1607 2064
1608 EV_TS_SET (ts, delay); 2065 EV_TS_SET (ts, delay);
1609 nanosleep (&ts, 0); 2066 nanosleep (&ts, 0);
1610#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) */
1611 Sleep ((unsigned long)(delay * 1e3)); 2070 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1612#else 2071#else
1613 struct timeval tv; 2072 struct timeval tv;
1614 2073
1615 /* 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 */
1616 /* something not guaranteed by newer posix versions, but guaranteed */ 2075 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1646 } 2105 }
1647 2106
1648 return ncur; 2107 return ncur;
1649} 2108}
1650 2109
1651static void * noinline ecb_cold 2110ecb_noinline ecb_cold
2111static void *
1652array_realloc (int elem, void *base, int *cur, int cnt) 2112array_realloc (int elem, void *base, int *cur, int cnt)
1653{ 2113{
1654 *cur = array_nextsize (elem, *cur, cnt); 2114 *cur = array_nextsize (elem, *cur, cnt);
1655 return ev_realloc (base, elem * *cur); 2115 return ev_realloc (base, elem * *cur);
1656} 2116}
1657 2117
2118#define array_needsize_noinit(base,offset,count)
2119
1658#define array_init_zero(base,count) \ 2120#define array_needsize_zerofill(base,offset,count) \
1659 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2121 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1660 2122
1661#define array_needsize(type,base,cur,cnt,init) \ 2123#define array_needsize(type,base,cur,cnt,init) \
1662 if (expect_false ((cnt) > (cur))) \ 2124 if (ecb_expect_false ((cnt) > (cur))) \
1663 { \ 2125 { \
1664 int ecb_unused ocur_ = (cur); \ 2126 ecb_unused int ocur_ = (cur); \
1665 (base) = (type *)array_realloc \ 2127 (base) = (type *)array_realloc \
1666 (sizeof (type), (base), &(cur), (cnt)); \ 2128 (sizeof (type), (base), &(cur), (cnt)); \
1667 init ((base) + (ocur_), (cur) - ocur_); \ 2129 init ((base), ocur_, ((cur) - ocur_)); \
1668 } 2130 }
1669 2131
1670#if 0 2132#if 0
1671#define array_slim(type,stem) \ 2133#define array_slim(type,stem) \
1672 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2134 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1681 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
1682 2144
1683/*****************************************************************************/ 2145/*****************************************************************************/
1684 2146
1685/* dummy callback for pending events */ 2147/* dummy callback for pending events */
1686static void noinline 2148ecb_noinline
2149static void
1687pendingcb (EV_P_ ev_prepare *w, int revents) 2150pendingcb (EV_P_ ev_prepare *w, int revents)
1688{ 2151{
1689} 2152}
1690 2153
1691void noinline 2154ecb_noinline
2155void
1692ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2156ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1693{ 2157{
1694 W w_ = (W)w; 2158 W w_ = (W)w;
1695 int pri = ABSPRI (w_); 2159 int pri = ABSPRI (w_);
1696 2160
1697 if (expect_false (w_->pending)) 2161 if (ecb_expect_false (w_->pending))
1698 pendings [pri][w_->pending - 1].events |= revents; 2162 pendings [pri][w_->pending - 1].events |= revents;
1699 else 2163 else
1700 { 2164 {
1701 w_->pending = ++pendingcnt [pri]; 2165 w_->pending = ++pendingcnt [pri];
1702 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2166 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1703 pendings [pri][w_->pending - 1].w = w_; 2167 pendings [pri][w_->pending - 1].w = w_;
1704 pendings [pri][w_->pending - 1].events = revents; 2168 pendings [pri][w_->pending - 1].events = revents;
1705 } 2169 }
1706 2170
1707 pendingpri = NUMPRI - 1; 2171 pendingpri = NUMPRI - 1;
1708} 2172}
1709 2173
1710inline_speed void 2174inline_speed void
1711feed_reverse (EV_P_ W w) 2175feed_reverse (EV_P_ W w)
1712{ 2176{
1713 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2177 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1714 rfeeds [rfeedcnt++] = w; 2178 rfeeds [rfeedcnt++] = w;
1715} 2179}
1716 2180
1717inline_size void 2181inline_size void
1718feed_reverse_done (EV_P_ int revents) 2182feed_reverse_done (EV_P_ int revents)
… …
1753inline_speed void 2217inline_speed void
1754fd_event (EV_P_ int fd, int revents) 2218fd_event (EV_P_ int fd, int revents)
1755{ 2219{
1756 ANFD *anfd = anfds + fd; 2220 ANFD *anfd = anfds + fd;
1757 2221
1758 if (expect_true (!anfd->reify)) 2222 if (ecb_expect_true (!anfd->reify))
1759 fd_event_nocheck (EV_A_ fd, revents); 2223 fd_event_nocheck (EV_A_ fd, revents);
1760} 2224}
1761 2225
1762void 2226void
1763ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2227ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1764{ 2228{
1765 if (fd >= 0 && fd < anfdmax) 2229 if (fd >= 0 && fd < anfdmax)
1766 fd_event_nocheck (EV_A_ fd, revents); 2230 fd_event_nocheck (EV_A_ fd, revents);
1767} 2231}
1768 2232
… …
1805 ev_io *w; 2269 ev_io *w;
1806 2270
1807 unsigned char o_events = anfd->events; 2271 unsigned char o_events = anfd->events;
1808 unsigned char o_reify = anfd->reify; 2272 unsigned char o_reify = anfd->reify;
1809 2273
1810 anfd->reify = 0; 2274 anfd->reify = 0;
1811 2275
1812 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2276 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1813 { 2277 {
1814 anfd->events = 0; 2278 anfd->events = 0;
1815 2279
1816 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)
1817 anfd->events |= (unsigned char)w->events; 2281 anfd->events |= (unsigned char)w->events;
… …
1826 2290
1827 fdchangecnt = 0; 2291 fdchangecnt = 0;
1828} 2292}
1829 2293
1830/* something about the given fd changed */ 2294/* something about the given fd changed */
1831inline_size void 2295inline_size
2296void
1832fd_change (EV_P_ int fd, int flags) 2297fd_change (EV_P_ int fd, int flags)
1833{ 2298{
1834 unsigned char reify = anfds [fd].reify; 2299 unsigned char reify = anfds [fd].reify;
1835 anfds [fd].reify |= flags; 2300 anfds [fd].reify |= flags;
1836 2301
1837 if (expect_true (!reify)) 2302 if (ecb_expect_true (!reify))
1838 { 2303 {
1839 ++fdchangecnt; 2304 ++fdchangecnt;
1840 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2305 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1841 fdchanges [fdchangecnt - 1] = fd; 2306 fdchanges [fdchangecnt - 1] = fd;
1842 } 2307 }
1843} 2308}
1844 2309
1845/* 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 */
1846inline_speed void ecb_cold 2311inline_speed ecb_cold void
1847fd_kill (EV_P_ int fd) 2312fd_kill (EV_P_ int fd)
1848{ 2313{
1849 ev_io *w; 2314 ev_io *w;
1850 2315
1851 while ((w = (ev_io *)anfds [fd].head)) 2316 while ((w = (ev_io *)anfds [fd].head))
… …
1854 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);
1855 } 2320 }
1856} 2321}
1857 2322
1858/* check whether the given fd is actually valid, for error recovery */ 2323/* check whether the given fd is actually valid, for error recovery */
1859inline_size int ecb_cold 2324inline_size ecb_cold int
1860fd_valid (int fd) 2325fd_valid (int fd)
1861{ 2326{
1862#ifdef _WIN32 2327#ifdef _WIN32
1863 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2328 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1864#else 2329#else
1865 return fcntl (fd, F_GETFD) != -1; 2330 return fcntl (fd, F_GETFD) != -1;
1866#endif 2331#endif
1867} 2332}
1868 2333
1869/* called on EBADF to verify fds */ 2334/* called on EBADF to verify fds */
1870static void noinline ecb_cold 2335ecb_noinline ecb_cold
2336static void
1871fd_ebadf (EV_P) 2337fd_ebadf (EV_P)
1872{ 2338{
1873 int fd; 2339 int fd;
1874 2340
1875 for (fd = 0; fd < anfdmax; ++fd) 2341 for (fd = 0; fd < anfdmax; ++fd)
… …
1877 if (!fd_valid (fd) && errno == EBADF) 2343 if (!fd_valid (fd) && errno == EBADF)
1878 fd_kill (EV_A_ fd); 2344 fd_kill (EV_A_ fd);
1879} 2345}
1880 2346
1881/* 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 */
1882static void noinline ecb_cold 2348ecb_noinline ecb_cold
2349static void
1883fd_enomem (EV_P) 2350fd_enomem (EV_P)
1884{ 2351{
1885 int fd; 2352 int fd;
1886 2353
1887 for (fd = anfdmax; fd--; ) 2354 for (fd = anfdmax; fd--; )
… …
1891 break; 2358 break;
1892 } 2359 }
1893} 2360}
1894 2361
1895/* 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 */
1896static void noinline 2363ecb_noinline
2364static void
1897fd_rearm_all (EV_P) 2365fd_rearm_all (EV_P)
1898{ 2366{
1899 int fd; 2367 int fd;
1900 2368
1901 for (fd = 0; fd < anfdmax; ++fd) 2369 for (fd = 0; fd < anfdmax; ++fd)
… …
1954 ev_tstamp minat; 2422 ev_tstamp minat;
1955 ANHE *minpos; 2423 ANHE *minpos;
1956 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2424 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1957 2425
1958 /* find minimum child */ 2426 /* find minimum child */
1959 if (expect_true (pos + DHEAP - 1 < E)) 2427 if (ecb_expect_true (pos + DHEAP - 1 < E))
1960 { 2428 {
1961 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2429 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1962 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));
1963 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));
1964 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));
1965 } 2433 }
1966 else if (pos < E) 2434 else if (pos < E)
1967 { 2435 {
1968 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2436 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1969 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));
1970 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));
1971 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));
1972 } 2440 }
1973 else 2441 else
1974 break; 2442 break;
1975 2443
1976 if (ANHE_at (he) <= minat) 2444 if (ANHE_at (he) <= minat)
… …
1984 2452
1985 heap [k] = he; 2453 heap [k] = he;
1986 ev_active (ANHE_w (he)) = k; 2454 ev_active (ANHE_w (he)) = k;
1987} 2455}
1988 2456
1989#else /* 4HEAP */ 2457#else /* not 4HEAP */
1990 2458
1991#define HEAP0 1 2459#define HEAP0 1
1992#define HPARENT(k) ((k) >> 1) 2460#define HPARENT(k) ((k) >> 1)
1993#define UPHEAP_DONE(p,k) (!(p)) 2461#define UPHEAP_DONE(p,k) (!(p))
1994 2462
… …
2082 2550
2083/*****************************************************************************/ 2551/*****************************************************************************/
2084 2552
2085#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2086 2554
2087static void noinline ecb_cold 2555ecb_noinline ecb_cold
2556static void
2088evpipe_init (EV_P) 2557evpipe_init (EV_P)
2089{ 2558{
2090 if (!ev_is_active (&pipe_w)) 2559 if (!ev_is_active (&pipe_w))
2091 { 2560 {
2092 int fds [2]; 2561 int fds [2];
… …
2103 while (pipe (fds)) 2572 while (pipe (fds))
2104 ev_syserr ("(libev) error creating signal/async pipe"); 2573 ev_syserr ("(libev) error creating signal/async pipe");
2105 2574
2106 fd_intern (fds [0]); 2575 fd_intern (fds [0]);
2107 } 2576 }
2108
2109 fd_intern (fds [1]);
2110 2577
2111 evpipe [0] = fds [0]; 2578 evpipe [0] = fds [0];
2112 2579
2113 if (evpipe [1] < 0) 2580 if (evpipe [1] < 0)
2114 evpipe [1] = fds [1]; /* first call, set write fd */ 2581 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2121 2588
2122 dup2 (fds [1], evpipe [1]); 2589 dup2 (fds [1], evpipe [1]);
2123 close (fds [1]); 2590 close (fds [1]);
2124 } 2591 }
2125 2592
2593 fd_intern (evpipe [1]);
2594
2126 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);
2127 ev_io_start (EV_A_ &pipe_w); 2596 ev_io_start (EV_A_ &pipe_w);
2128 ev_unref (EV_A); /* watcher should not keep loop alive */ 2597 ev_unref (EV_A); /* watcher should not keep loop alive */
2129 } 2598 }
2130} 2599}
… …
2132inline_speed void 2601inline_speed void
2133evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2602evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2134{ 2603{
2135 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 */
2136 2605
2137 if (expect_true (*flag)) 2606 if (ecb_expect_true (*flag))
2138 return; 2607 return;
2139 2608
2140 *flag = 1; 2609 *flag = 1;
2141 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 */
2142 2611
… …
2163#endif 2632#endif
2164 { 2633 {
2165#ifdef _WIN32 2634#ifdef _WIN32
2166 WSABUF buf; 2635 WSABUF buf;
2167 DWORD sent; 2636 DWORD sent;
2168 buf.buf = &buf; 2637 buf.buf = (char *)&buf;
2169 buf.len = 1; 2638 buf.len = 1;
2170 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);
2171#else 2640#else
2172 write (evpipe [1], &(evpipe [1]), 1); 2641 write (evpipe [1], &(evpipe [1]), 1);
2173#endif 2642#endif
… …
2219 sig_pending = 0; 2688 sig_pending = 0;
2220 2689
2221 ECB_MEMORY_FENCE; 2690 ECB_MEMORY_FENCE;
2222 2691
2223 for (i = EV_NSIG - 1; i--; ) 2692 for (i = EV_NSIG - 1; i--; )
2224 if (expect_false (signals [i].pending)) 2693 if (ecb_expect_false (signals [i].pending))
2225 ev_feed_signal_event (EV_A_ i + 1); 2694 ev_feed_signal_event (EV_A_ i + 1);
2226 } 2695 }
2227#endif 2696#endif
2228 2697
2229#if EV_ASYNC_ENABLE 2698#if EV_ASYNC_ENABLE
… …
2245} 2714}
2246 2715
2247/*****************************************************************************/ 2716/*****************************************************************************/
2248 2717
2249void 2718void
2250ev_feed_signal (int signum) EV_THROW 2719ev_feed_signal (int signum) EV_NOEXCEPT
2251{ 2720{
2252#if EV_MULTIPLICITY 2721#if EV_MULTIPLICITY
2253 EV_P; 2722 EV_P;
2254 ECB_MEMORY_FENCE_ACQUIRE; 2723 ECB_MEMORY_FENCE_ACQUIRE;
2255 EV_A = signals [signum - 1].loop; 2724 EV_A = signals [signum - 1].loop;
… …
2270#endif 2739#endif
2271 2740
2272 ev_feed_signal (signum); 2741 ev_feed_signal (signum);
2273} 2742}
2274 2743
2275void noinline 2744ecb_noinline
2745void
2276ev_feed_signal_event (EV_P_ int signum) EV_THROW 2746ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2277{ 2747{
2278 WL w; 2748 WL w;
2279 2749
2280 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2750 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2281 return; 2751 return;
2282 2752
2283 --signum; 2753 --signum;
2284 2754
2285#if EV_MULTIPLICITY 2755#if EV_MULTIPLICITY
2286 /* 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 */
2287 /* or, likely more useful, feeding a signal nobody is waiting for */ 2757 /* or, likely more useful, feeding a signal nobody is waiting for */
2288 2758
2289 if (expect_false (signals [signum].loop != EV_A)) 2759 if (ecb_expect_false (signals [signum].loop != EV_A))
2290 return; 2760 return;
2291#endif 2761#endif
2292 2762
2293 signals [signum].pending = 0; 2763 signals [signum].pending = 0;
2294 ECB_MEMORY_FENCE_RELEASE; 2764 ECB_MEMORY_FENCE_RELEASE;
… …
2390# include "ev_kqueue.c" 2860# include "ev_kqueue.c"
2391#endif 2861#endif
2392#if EV_USE_EPOLL 2862#if EV_USE_EPOLL
2393# include "ev_epoll.c" 2863# include "ev_epoll.c"
2394#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
2395#if EV_USE_POLL 2871#if EV_USE_POLL
2396# include "ev_poll.c" 2872# include "ev_poll.c"
2397#endif 2873#endif
2398#if EV_USE_SELECT 2874#if EV_USE_SELECT
2399# include "ev_select.c" 2875# include "ev_select.c"
2400#endif 2876#endif
2401 2877
2402int ecb_cold 2878ecb_cold int
2403ev_version_major (void) EV_THROW 2879ev_version_major (void) EV_NOEXCEPT
2404{ 2880{
2405 return EV_VERSION_MAJOR; 2881 return EV_VERSION_MAJOR;
2406} 2882}
2407 2883
2408int ecb_cold 2884ecb_cold int
2409ev_version_minor (void) EV_THROW 2885ev_version_minor (void) EV_NOEXCEPT
2410{ 2886{
2411 return EV_VERSION_MINOR; 2887 return EV_VERSION_MINOR;
2412} 2888}
2413 2889
2414/* 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 */
2415int inline_size ecb_cold 2891inline_size ecb_cold int
2416enable_secure (void) 2892enable_secure (void)
2417{ 2893{
2418#ifdef _WIN32 2894#ifdef _WIN32
2419 return 0; 2895 return 0;
2420#else 2896#else
2421 return getuid () != geteuid () 2897 return getuid () != geteuid ()
2422 || getgid () != getegid (); 2898 || getgid () != getegid ();
2423#endif 2899#endif
2424} 2900}
2425 2901
2426unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2427ev_supported_backends (void) EV_THROW 2904ev_supported_backends (void) EV_NOEXCEPT
2428{ 2905{
2429 unsigned int flags = 0; 2906 unsigned int flags = 0;
2430 2907
2431 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2908 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2432 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2909 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2433 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;
2434 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2913 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2435 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2914 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2436 2915
2437 return flags; 2916 return flags;
2438} 2917}
2439 2918
2440unsigned int ecb_cold 2919ecb_cold
2920unsigned int
2441ev_recommended_backends (void) EV_THROW 2921ev_recommended_backends (void) EV_NOEXCEPT
2442{ 2922{
2443 unsigned int flags = ev_supported_backends (); 2923 unsigned int flags = ev_supported_backends ();
2444 2924
2445#ifndef __NetBSD__ 2925#ifndef __NetBSD__
2446 /* kqueue is borked on everything but netbsd apparently */ 2926 /* kqueue is borked on everything but netbsd apparently */
… …
2454#endif 2934#endif
2455#ifdef __FreeBSD__ 2935#ifdef __FreeBSD__
2456 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) */
2457#endif 2937#endif
2458 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
2459 return flags; 2948 return flags;
2460} 2949}
2461 2950
2462unsigned int ecb_cold 2951ecb_cold
2952unsigned int
2463ev_embeddable_backends (void) EV_THROW 2953ev_embeddable_backends (void) EV_NOEXCEPT
2464{ 2954{
2465 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2955 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2466 2956
2467 /* 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 */
2468 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 */
2469 flags &= ~EVBACKEND_EPOLL; 2959 flags &= ~EVBACKEND_EPOLL;
2470 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
2471 return flags; 2968 return flags;
2472} 2969}
2473 2970
2474unsigned int 2971unsigned int
2475ev_backend (EV_P) EV_THROW 2972ev_backend (EV_P) EV_NOEXCEPT
2476{ 2973{
2477 return backend; 2974 return backend;
2478} 2975}
2479 2976
2480#if EV_FEATURE_API 2977#if EV_FEATURE_API
2481unsigned int 2978unsigned int
2482ev_iteration (EV_P) EV_THROW 2979ev_iteration (EV_P) EV_NOEXCEPT
2483{ 2980{
2484 return loop_count; 2981 return loop_count;
2485} 2982}
2486 2983
2487unsigned int 2984unsigned int
2488ev_depth (EV_P) EV_THROW 2985ev_depth (EV_P) EV_NOEXCEPT
2489{ 2986{
2490 return loop_depth; 2987 return loop_depth;
2491} 2988}
2492 2989
2493void 2990void
2494ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2991ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2495{ 2992{
2496 io_blocktime = interval; 2993 io_blocktime = interval;
2497} 2994}
2498 2995
2499void 2996void
2500ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2997ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2501{ 2998{
2502 timeout_blocktime = interval; 2999 timeout_blocktime = interval;
2503} 3000}
2504 3001
2505void 3002void
2506ev_set_userdata (EV_P_ void *data) EV_THROW 3003ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2507{ 3004{
2508 userdata = data; 3005 userdata = data;
2509} 3006}
2510 3007
2511void * 3008void *
2512ev_userdata (EV_P) EV_THROW 3009ev_userdata (EV_P) EV_NOEXCEPT
2513{ 3010{
2514 return userdata; 3011 return userdata;
2515} 3012}
2516 3013
2517void 3014void
2518ev_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
2519{ 3016{
2520 invoke_cb = invoke_pending_cb; 3017 invoke_cb = invoke_pending_cb;
2521} 3018}
2522 3019
2523void 3020void
2524ev_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
2525{ 3022{
2526 release_cb = release; 3023 release_cb = release;
2527 acquire_cb = acquire; 3024 acquire_cb = acquire;
2528} 3025}
2529#endif 3026#endif
2530 3027
2531/* initialise a loop structure, must be zero-initialised */ 3028/* initialise a loop structure, must be zero-initialised */
2532static void noinline ecb_cold 3029ecb_noinline ecb_cold
3030static void
2533loop_init (EV_P_ unsigned int flags) EV_THROW 3031loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2534{ 3032{
2535 if (!backend) 3033 if (!backend)
2536 { 3034 {
2537 origflags = flags; 3035 origflags = flags;
2538 3036
… …
2596 3094
2597 if (!(flags & EVBACKEND_MASK)) 3095 if (!(flags & EVBACKEND_MASK))
2598 flags |= ev_recommended_backends (); 3096 flags |= ev_recommended_backends ();
2599 3097
2600#if EV_USE_IOCP 3098#if EV_USE_IOCP
2601 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3099 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2602#endif 3100#endif
2603#if EV_USE_PORT 3101#if EV_USE_PORT
2604 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3102 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2605#endif 3103#endif
2606#if EV_USE_KQUEUE 3104#if EV_USE_KQUEUE
2607 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);
2608#endif 3112#endif
2609#if EV_USE_EPOLL 3113#if EV_USE_EPOLL
2610 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3114 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2611#endif 3115#endif
2612#if EV_USE_POLL 3116#if EV_USE_POLL
2613 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3117 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2614#endif 3118#endif
2615#if EV_USE_SELECT 3119#if EV_USE_SELECT
2616 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3120 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2617#endif 3121#endif
2618 3122
2619 ev_prepare_init (&pending_w, pendingcb); 3123 ev_prepare_init (&pending_w, pendingcb);
2620 3124
2621#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3125#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2624#endif 3128#endif
2625 } 3129 }
2626} 3130}
2627 3131
2628/* free up a loop structure */ 3132/* free up a loop structure */
2629void ecb_cold 3133ecb_cold
3134void
2630ev_loop_destroy (EV_P) 3135ev_loop_destroy (EV_P)
2631{ 3136{
2632 int i; 3137 int i;
2633 3138
2634#if EV_MULTIPLICITY 3139#if EV_MULTIPLICITY
… …
2637 return; 3142 return;
2638#endif 3143#endif
2639 3144
2640#if EV_CLEANUP_ENABLE 3145#if EV_CLEANUP_ENABLE
2641 /* queue cleanup watchers (and execute them) */ 3146 /* queue cleanup watchers (and execute them) */
2642 if (expect_false (cleanupcnt)) 3147 if (ecb_expect_false (cleanupcnt))
2643 { 3148 {
2644 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3149 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2645 EV_INVOKE_PENDING; 3150 EV_INVOKE_PENDING;
2646 } 3151 }
2647#endif 3152#endif
… …
2675 3180
2676 if (backend_fd >= 0) 3181 if (backend_fd >= 0)
2677 close (backend_fd); 3182 close (backend_fd);
2678 3183
2679#if EV_USE_IOCP 3184#if EV_USE_IOCP
2680 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3185 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2681#endif 3186#endif
2682#if EV_USE_PORT 3187#if EV_USE_PORT
2683 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3188 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2684#endif 3189#endif
2685#if EV_USE_KQUEUE 3190#if EV_USE_KQUEUE
2686 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);
2687#endif 3198#endif
2688#if EV_USE_EPOLL 3199#if EV_USE_EPOLL
2689 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3200 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2690#endif 3201#endif
2691#if EV_USE_POLL 3202#if EV_USE_POLL
2692 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3203 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2693#endif 3204#endif
2694#if EV_USE_SELECT 3205#if EV_USE_SELECT
2695 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3206 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2696#endif 3207#endif
2697 3208
2698 for (i = NUMPRI; i--; ) 3209 for (i = NUMPRI; i--; )
2699 { 3210 {
2700 array_free (pending, [i]); 3211 array_free (pending, [i]);
… …
2742 3253
2743inline_size void 3254inline_size void
2744loop_fork (EV_P) 3255loop_fork (EV_P)
2745{ 3256{
2746#if EV_USE_PORT 3257#if EV_USE_PORT
2747 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3258 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2748#endif 3259#endif
2749#if EV_USE_KQUEUE 3260#if EV_USE_KQUEUE
2750 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);
2751#endif 3268#endif
2752#if EV_USE_EPOLL 3269#if EV_USE_EPOLL
2753 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3270 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2754#endif 3271#endif
2755#if EV_USE_INOTIFY 3272#if EV_USE_INOTIFY
2756 infy_fork (EV_A); 3273 infy_fork (EV_A);
2757#endif 3274#endif
2758 3275
2759#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3276#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2760 if (ev_is_active (&pipe_w)) 3277 if (ev_is_active (&pipe_w) && postfork != 2)
2761 { 3278 {
2762 /* 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 */
2763 3280
2764 ev_ref (EV_A); 3281 ev_ref (EV_A);
2765 ev_io_stop (EV_A_ &pipe_w); 3282 ev_io_stop (EV_A_ &pipe_w);
… …
2776 postfork = 0; 3293 postfork = 0;
2777} 3294}
2778 3295
2779#if EV_MULTIPLICITY 3296#if EV_MULTIPLICITY
2780 3297
3298ecb_cold
2781struct ev_loop * ecb_cold 3299struct ev_loop *
2782ev_loop_new (unsigned int flags) EV_THROW 3300ev_loop_new (unsigned int flags) EV_NOEXCEPT
2783{ 3301{
2784 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3302 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2785 3303
2786 memset (EV_A, 0, sizeof (struct ev_loop)); 3304 memset (EV_A, 0, sizeof (struct ev_loop));
2787 loop_init (EV_A_ flags); 3305 loop_init (EV_A_ flags);
… …
2794} 3312}
2795 3313
2796#endif /* multiplicity */ 3314#endif /* multiplicity */
2797 3315
2798#if EV_VERIFY 3316#if EV_VERIFY
2799static void noinline ecb_cold 3317ecb_noinline ecb_cold
3318static void
2800verify_watcher (EV_P_ W w) 3319verify_watcher (EV_P_ W w)
2801{ 3320{
2802 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));
2803 3322
2804 if (w->pending) 3323 if (w->pending)
2805 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));
2806} 3325}
2807 3326
2808static void noinline ecb_cold 3327ecb_noinline ecb_cold
3328static void
2809verify_heap (EV_P_ ANHE *heap, int N) 3329verify_heap (EV_P_ ANHE *heap, int N)
2810{ 3330{
2811 int i; 3331 int i;
2812 3332
2813 for (i = HEAP0; i < N + HEAP0; ++i) 3333 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2818 3338
2819 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3339 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2820 } 3340 }
2821} 3341}
2822 3342
2823static void noinline ecb_cold 3343ecb_noinline ecb_cold
3344static void
2824array_verify (EV_P_ W *ws, int cnt) 3345array_verify (EV_P_ W *ws, int cnt)
2825{ 3346{
2826 while (cnt--) 3347 while (cnt--)
2827 { 3348 {
2828 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3349 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2831} 3352}
2832#endif 3353#endif
2833 3354
2834#if EV_FEATURE_API 3355#if EV_FEATURE_API
2835void ecb_cold 3356void ecb_cold
2836ev_verify (EV_P) EV_THROW 3357ev_verify (EV_P) EV_NOEXCEPT
2837{ 3358{
2838#if EV_VERIFY 3359#if EV_VERIFY
2839 int i; 3360 int i;
2840 WL w, w2; 3361 WL w, w2;
2841 3362
… …
2917#endif 3438#endif
2918} 3439}
2919#endif 3440#endif
2920 3441
2921#if EV_MULTIPLICITY 3442#if EV_MULTIPLICITY
3443ecb_cold
2922struct ev_loop * ecb_cold 3444struct ev_loop *
2923#else 3445#else
2924int 3446int
2925#endif 3447#endif
2926ev_default_loop (unsigned int flags) EV_THROW 3448ev_default_loop (unsigned int flags) EV_NOEXCEPT
2927{ 3449{
2928 if (!ev_default_loop_ptr) 3450 if (!ev_default_loop_ptr)
2929 { 3451 {
2930#if EV_MULTIPLICITY 3452#if EV_MULTIPLICITY
2931 EV_P = ev_default_loop_ptr = &default_loop_struct; 3453 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2950 3472
2951 return ev_default_loop_ptr; 3473 return ev_default_loop_ptr;
2952} 3474}
2953 3475
2954void 3476void
2955ev_loop_fork (EV_P) EV_THROW 3477ev_loop_fork (EV_P) EV_NOEXCEPT
2956{ 3478{
2957 postfork = 1; 3479 postfork = 1;
2958} 3480}
2959 3481
2960/*****************************************************************************/ 3482/*****************************************************************************/
… …
2964{ 3486{
2965 EV_CB_INVOKE ((W)w, revents); 3487 EV_CB_INVOKE ((W)w, revents);
2966} 3488}
2967 3489
2968unsigned int 3490unsigned int
2969ev_pending_count (EV_P) EV_THROW 3491ev_pending_count (EV_P) EV_NOEXCEPT
2970{ 3492{
2971 int pri; 3493 int pri;
2972 unsigned int count = 0; 3494 unsigned int count = 0;
2973 3495
2974 for (pri = NUMPRI; pri--; ) 3496 for (pri = NUMPRI; pri--; )
2975 count += pendingcnt [pri]; 3497 count += pendingcnt [pri];
2976 3498
2977 return count; 3499 return count;
2978} 3500}
2979 3501
2980void noinline 3502ecb_noinline
3503void
2981ev_invoke_pending (EV_P) 3504ev_invoke_pending (EV_P)
2982{ 3505{
2983 pendingpri = NUMPRI; 3506 pendingpri = NUMPRI;
2984 3507
2985 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3508 do
2986 { 3509 {
2987 --pendingpri; 3510 --pendingpri;
2988 3511
3512 /* pendingpri possibly gets modified in the inner loop */
2989 while (pendingcnt [pendingpri]) 3513 while (pendingcnt [pendingpri])
2990 { 3514 {
2991 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3515 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2992 3516
2993 p->w->pending = 0; 3517 p->w->pending = 0;
2994 EV_CB_INVOKE (p->w, p->events); 3518 EV_CB_INVOKE (p->w, p->events);
2995 EV_FREQUENT_CHECK; 3519 EV_FREQUENT_CHECK;
2996 } 3520 }
2997 } 3521 }
3522 while (pendingpri);
2998} 3523}
2999 3524
3000#if EV_IDLE_ENABLE 3525#if EV_IDLE_ENABLE
3001/* make idle watchers pending. this handles the "call-idle */ 3526/* make idle watchers pending. this handles the "call-idle */
3002/* only when higher priorities are idle" logic */ 3527/* only when higher priorities are idle" logic */
3003inline_size void 3528inline_size void
3004idle_reify (EV_P) 3529idle_reify (EV_P)
3005{ 3530{
3006 if (expect_false (idleall)) 3531 if (ecb_expect_false (idleall))
3007 { 3532 {
3008 int pri; 3533 int pri;
3009 3534
3010 for (pri = NUMPRI; pri--; ) 3535 for (pri = NUMPRI; pri--; )
3011 { 3536 {
… …
3041 { 3566 {
3042 ev_at (w) += w->repeat; 3567 ev_at (w) += w->repeat;
3043 if (ev_at (w) < mn_now) 3568 if (ev_at (w) < mn_now)
3044 ev_at (w) = mn_now; 3569 ev_at (w) = mn_now;
3045 3570
3046 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.)));
3047 3572
3048 ANHE_at_cache (timers [HEAP0]); 3573 ANHE_at_cache (timers [HEAP0]);
3049 downheap (timers, timercnt, HEAP0); 3574 downheap (timers, timercnt, HEAP0);
3050 } 3575 }
3051 else 3576 else
… …
3060 } 3585 }
3061} 3586}
3062 3587
3063#if EV_PERIODIC_ENABLE 3588#if EV_PERIODIC_ENABLE
3064 3589
3065static void noinline 3590ecb_noinline
3591static void
3066periodic_recalc (EV_P_ ev_periodic *w) 3592periodic_recalc (EV_P_ ev_periodic *w)
3067{ 3593{
3068 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3594 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3069 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);
3070 3596
… …
3072 while (at <= ev_rt_now) 3598 while (at <= ev_rt_now)
3073 { 3599 {
3074 ev_tstamp nat = at + w->interval; 3600 ev_tstamp nat = at + w->interval;
3075 3601
3076 /* when resolution fails us, we use ev_rt_now */ 3602 /* when resolution fails us, we use ev_rt_now */
3077 if (expect_false (nat == at)) 3603 if (ecb_expect_false (nat == at))
3078 { 3604 {
3079 at = ev_rt_now; 3605 at = ev_rt_now;
3080 break; 3606 break;
3081 } 3607 }
3082 3608
… …
3128 } 3654 }
3129} 3655}
3130 3656
3131/* simply recalculate all periodics */ 3657/* simply recalculate all periodics */
3132/* 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? */
3133static void noinline ecb_cold 3659ecb_noinline ecb_cold
3660static void
3134periodics_reschedule (EV_P) 3661periodics_reschedule (EV_P)
3135{ 3662{
3136 int i; 3663 int i;
3137 3664
3138 /* adjust periodics after time jump */ 3665 /* adjust periodics after time jump */
… …
3151 reheap (periodics, periodiccnt); 3678 reheap (periodics, periodiccnt);
3152} 3679}
3153#endif 3680#endif
3154 3681
3155/* adjust all timers by a given offset */ 3682/* adjust all timers by a given offset */
3156static void noinline ecb_cold 3683ecb_noinline ecb_cold
3684static void
3157timers_reschedule (EV_P_ ev_tstamp adjust) 3685timers_reschedule (EV_P_ ev_tstamp adjust)
3158{ 3686{
3159 int i; 3687 int i;
3160 3688
3161 for (i = 0; i < timercnt; ++i) 3689 for (i = 0; i < timercnt; ++i)
… …
3170/* also detect if there was a timejump, and act accordingly */ 3698/* also detect if there was a timejump, and act accordingly */
3171inline_speed void 3699inline_speed void
3172time_update (EV_P_ ev_tstamp max_block) 3700time_update (EV_P_ ev_tstamp max_block)
3173{ 3701{
3174#if EV_USE_MONOTONIC 3702#if EV_USE_MONOTONIC
3175 if (expect_true (have_monotonic)) 3703 if (ecb_expect_true (have_monotonic))
3176 { 3704 {
3177 int i; 3705 int i;
3178 ev_tstamp odiff = rtmn_diff; 3706 ev_tstamp odiff = rtmn_diff;
3179 3707
3180 mn_now = get_clock (); 3708 mn_now = get_clock ();
3181 3709
3182 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3710 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3183 /* interpolate in the meantime */ 3711 /* interpolate in the meantime */
3184 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)))
3185 { 3713 {
3186 ev_rt_now = rtmn_diff + mn_now; 3714 ev_rt_now = rtmn_diff + mn_now;
3187 return; 3715 return;
3188 } 3716 }
3189 3717
… …
3203 ev_tstamp diff; 3731 ev_tstamp diff;
3204 rtmn_diff = ev_rt_now - mn_now; 3732 rtmn_diff = ev_rt_now - mn_now;
3205 3733
3206 diff = odiff - rtmn_diff; 3734 diff = odiff - rtmn_diff;
3207 3735
3208 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)))
3209 return; /* all is well */ 3737 return; /* all is well */
3210 3738
3211 ev_rt_now = ev_time (); 3739 ev_rt_now = ev_time ();
3212 mn_now = get_clock (); 3740 mn_now = get_clock ();
3213 now_floor = mn_now; 3741 now_floor = mn_now;
… …
3222 else 3750 else
3223#endif 3751#endif
3224 { 3752 {
3225 ev_rt_now = ev_time (); 3753 ev_rt_now = ev_time ();
3226 3754
3227 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)))
3228 { 3756 {
3229 /* 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 */
3230 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3758 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3231#if EV_PERIODIC_ENABLE 3759#if EV_PERIODIC_ENABLE
3232 periodics_reschedule (EV_A); 3760 periodics_reschedule (EV_A);
… …
3255#if EV_VERIFY >= 2 3783#if EV_VERIFY >= 2
3256 ev_verify (EV_A); 3784 ev_verify (EV_A);
3257#endif 3785#endif
3258 3786
3259#ifndef _WIN32 3787#ifndef _WIN32
3260 if (expect_false (curpid)) /* penalise the forking check even more */ 3788 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3261 if (expect_false (getpid () != curpid)) 3789 if (ecb_expect_false (getpid () != curpid))
3262 { 3790 {
3263 curpid = getpid (); 3791 curpid = getpid ();
3264 postfork = 1; 3792 postfork = 1;
3265 } 3793 }
3266#endif 3794#endif
3267 3795
3268#if EV_FORK_ENABLE 3796#if EV_FORK_ENABLE
3269 /* we might have forked, so queue fork handlers */ 3797 /* we might have forked, so queue fork handlers */
3270 if (expect_false (postfork)) 3798 if (ecb_expect_false (postfork))
3271 if (forkcnt) 3799 if (forkcnt)
3272 { 3800 {
3273 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3801 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3274 EV_INVOKE_PENDING; 3802 EV_INVOKE_PENDING;
3275 } 3803 }
3276#endif 3804#endif
3277 3805
3278#if EV_PREPARE_ENABLE 3806#if EV_PREPARE_ENABLE
3279 /* queue prepare watchers (and execute them) */ 3807 /* queue prepare watchers (and execute them) */
3280 if (expect_false (preparecnt)) 3808 if (ecb_expect_false (preparecnt))
3281 { 3809 {
3282 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3810 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3283 EV_INVOKE_PENDING; 3811 EV_INVOKE_PENDING;
3284 } 3812 }
3285#endif 3813#endif
3286 3814
3287 if (expect_false (loop_done)) 3815 if (ecb_expect_false (loop_done))
3288 break; 3816 break;
3289 3817
3290 /* we might have forked, so reify kernel state if necessary */ 3818 /* we might have forked, so reify kernel state if necessary */
3291 if (expect_false (postfork)) 3819 if (ecb_expect_false (postfork))
3292 loop_fork (EV_A); 3820 loop_fork (EV_A);
3293 3821
3294 /* update fd-related kernel structures */ 3822 /* update fd-related kernel structures */
3295 fd_reify (EV_A); 3823 fd_reify (EV_A);
3296 3824
… …
3301 3829
3302 /* remember old timestamp for io_blocktime calculation */ 3830 /* remember old timestamp for io_blocktime calculation */
3303 ev_tstamp prev_mn_now = mn_now; 3831 ev_tstamp prev_mn_now = mn_now;
3304 3832
3305 /* update time to cancel out callback processing overhead */ 3833 /* update time to cancel out callback processing overhead */
3306 time_update (EV_A_ 1e100); 3834 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3307 3835
3308 /* from now on, we want a pipe-wake-up */ 3836 /* from now on, we want a pipe-wake-up */
3309 pipe_write_wanted = 1; 3837 pipe_write_wanted = 1;
3310 3838
3311 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 */
3312 3840
3313 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3841 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3314 { 3842 {
3315 waittime = MAX_BLOCKTIME; 3843 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3316 3844
3317 if (timercnt) 3845 if (timercnt)
3318 { 3846 {
3319 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3847 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3320 if (waittime > to) waittime = to; 3848 if (waittime > to) waittime = to;
… …
3327 if (waittime > to) waittime = to; 3855 if (waittime > to) waittime = to;
3328 } 3856 }
3329#endif 3857#endif
3330 3858
3331 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3859 /* don't let timeouts decrease the waittime below timeout_blocktime */
3332 if (expect_false (waittime < timeout_blocktime)) 3860 if (ecb_expect_false (waittime < timeout_blocktime))
3333 waittime = timeout_blocktime; 3861 waittime = timeout_blocktime;
3334 3862
3335 /* at this point, we NEED to wait, so we have to ensure */ 3863 /* now there are two more special cases left, either we have
3336 /* to pass a minimum nonzero value to the backend */ 3864 * already-expired timers, so we should not sleep, or we have timers
3865 * that expire very soon, in which case we need to wait for a minimum
3866 * amount of time for some event loop backends.
3867 */
3337 if (expect_false (waittime < backend_mintime)) 3868 if (ecb_expect_false (waittime < backend_mintime))
3869 waittime = waittime <= EV_TS_CONST (0.)
3870 ? EV_TS_CONST (0.)
3338 waittime = backend_mintime; 3871 : backend_mintime;
3339 3872
3340 /* extra check because io_blocktime is commonly 0 */ 3873 /* extra check because io_blocktime is commonly 0 */
3341 if (expect_false (io_blocktime)) 3874 if (ecb_expect_false (io_blocktime))
3342 { 3875 {
3343 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3876 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3344 3877
3345 if (sleeptime > waittime - backend_mintime) 3878 if (sleeptime > waittime - backend_mintime)
3346 sleeptime = waittime - backend_mintime; 3879 sleeptime = waittime - backend_mintime;
3347 3880
3348 if (expect_true (sleeptime > 0.)) 3881 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3349 { 3882 {
3350 ev_sleep (sleeptime); 3883 ev_sleep (sleeptime);
3351 waittime -= sleeptime; 3884 waittime -= sleeptime;
3352 } 3885 }
3353 } 3886 }
… …
3367 { 3900 {
3368 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3901 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3369 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3902 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3370 } 3903 }
3371 3904
3372
3373 /* update ev_rt_now, do magic */ 3905 /* update ev_rt_now, do magic */
3374 time_update (EV_A_ waittime + sleeptime); 3906 time_update (EV_A_ waittime + sleeptime);
3375 } 3907 }
3376 3908
3377 /* queue pending timers and reschedule them */ 3909 /* queue pending timers and reschedule them */
… …
3385 idle_reify (EV_A); 3917 idle_reify (EV_A);
3386#endif 3918#endif
3387 3919
3388#if EV_CHECK_ENABLE 3920#if EV_CHECK_ENABLE
3389 /* queue check watchers, to be executed first */ 3921 /* queue check watchers, to be executed first */
3390 if (expect_false (checkcnt)) 3922 if (ecb_expect_false (checkcnt))
3391 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3923 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3392#endif 3924#endif
3393 3925
3394 EV_INVOKE_PENDING; 3926 EV_INVOKE_PENDING;
3395 } 3927 }
3396 while (expect_true ( 3928 while (ecb_expect_true (
3397 activecnt 3929 activecnt
3398 && !loop_done 3930 && !loop_done
3399 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3931 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3400 )); 3932 ));
3401 3933
… …
3408 3940
3409 return activecnt; 3941 return activecnt;
3410} 3942}
3411 3943
3412void 3944void
3413ev_break (EV_P_ int how) EV_THROW 3945ev_break (EV_P_ int how) EV_NOEXCEPT
3414{ 3946{
3415 loop_done = how; 3947 loop_done = how;
3416} 3948}
3417 3949
3418void 3950void
3419ev_ref (EV_P) EV_THROW 3951ev_ref (EV_P) EV_NOEXCEPT
3420{ 3952{
3421 ++activecnt; 3953 ++activecnt;
3422} 3954}
3423 3955
3424void 3956void
3425ev_unref (EV_P) EV_THROW 3957ev_unref (EV_P) EV_NOEXCEPT
3426{ 3958{
3427 --activecnt; 3959 --activecnt;
3428} 3960}
3429 3961
3430void 3962void
3431ev_now_update (EV_P) EV_THROW 3963ev_now_update (EV_P) EV_NOEXCEPT
3432{ 3964{
3433 time_update (EV_A_ 1e100); 3965 time_update (EV_A_ EV_TSTAMP_HUGE);
3434} 3966}
3435 3967
3436void 3968void
3437ev_suspend (EV_P) EV_THROW 3969ev_suspend (EV_P) EV_NOEXCEPT
3438{ 3970{
3439 ev_now_update (EV_A); 3971 ev_now_update (EV_A);
3440} 3972}
3441 3973
3442void 3974void
3443ev_resume (EV_P) EV_THROW 3975ev_resume (EV_P) EV_NOEXCEPT
3444{ 3976{
3445 ev_tstamp mn_prev = mn_now; 3977 ev_tstamp mn_prev = mn_now;
3446 3978
3447 ev_now_update (EV_A); 3979 ev_now_update (EV_A);
3448 timers_reschedule (EV_A_ mn_now - mn_prev); 3980 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3465inline_size void 3997inline_size void
3466wlist_del (WL *head, WL elem) 3998wlist_del (WL *head, WL elem)
3467{ 3999{
3468 while (*head) 4000 while (*head)
3469 { 4001 {
3470 if (expect_true (*head == elem)) 4002 if (ecb_expect_true (*head == elem))
3471 { 4003 {
3472 *head = elem->next; 4004 *head = elem->next;
3473 break; 4005 break;
3474 } 4006 }
3475 4007
… …
3487 w->pending = 0; 4019 w->pending = 0;
3488 } 4020 }
3489} 4021}
3490 4022
3491int 4023int
3492ev_clear_pending (EV_P_ void *w) EV_THROW 4024ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3493{ 4025{
3494 W w_ = (W)w; 4026 W w_ = (W)w;
3495 int pending = w_->pending; 4027 int pending = w_->pending;
3496 4028
3497 if (expect_true (pending)) 4029 if (ecb_expect_true (pending))
3498 { 4030 {
3499 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4031 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3500 p->w = (W)&pending_w; 4032 p->w = (W)&pending_w;
3501 w_->pending = 0; 4033 w_->pending = 0;
3502 return p->events; 4034 return p->events;
… …
3529 w->active = 0; 4061 w->active = 0;
3530} 4062}
3531 4063
3532/*****************************************************************************/ 4064/*****************************************************************************/
3533 4065
3534void noinline 4066ecb_noinline
4067void
3535ev_io_start (EV_P_ ev_io *w) EV_THROW 4068ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3536{ 4069{
3537 int fd = w->fd; 4070 int fd = w->fd;
3538 4071
3539 if (expect_false (ev_is_active (w))) 4072 if (ecb_expect_false (ev_is_active (w)))
3540 return; 4073 return;
3541 4074
3542 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4075 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3543 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4076 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3544 4077
4078#if EV_VERIFY >= 2
4079 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4080#endif
3545 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3546 4082
3547 ev_start (EV_A_ (W)w, 1); 4083 ev_start (EV_A_ (W)w, 1);
3548 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4084 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3549 wlist_add (&anfds[fd].head, (WL)w); 4085 wlist_add (&anfds[fd].head, (WL)w);
3550 4086
3551 /* common bug, apparently */ 4087 /* common bug, apparently */
3552 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4088 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3553 4089
… …
3555 w->events &= ~EV__IOFDSET; 4091 w->events &= ~EV__IOFDSET;
3556 4092
3557 EV_FREQUENT_CHECK; 4093 EV_FREQUENT_CHECK;
3558} 4094}
3559 4095
3560void noinline 4096ecb_noinline
4097void
3561ev_io_stop (EV_P_ ev_io *w) EV_THROW 4098ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3562{ 4099{
3563 clear_pending (EV_A_ (W)w); 4100 clear_pending (EV_A_ (W)w);
3564 if (expect_false (!ev_is_active (w))) 4101 if (ecb_expect_false (!ev_is_active (w)))
3565 return; 4102 return;
3566 4103
3567 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4104 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3568 4105
4106#if EV_VERIFY >= 2
4107 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4108#endif
3569 EV_FREQUENT_CHECK; 4109 EV_FREQUENT_CHECK;
3570 4110
3571 wlist_del (&anfds[w->fd].head, (WL)w); 4111 wlist_del (&anfds[w->fd].head, (WL)w);
3572 ev_stop (EV_A_ (W)w); 4112 ev_stop (EV_A_ (W)w);
3573 4113
3574 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4114 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3575 4115
3576 EV_FREQUENT_CHECK; 4116 EV_FREQUENT_CHECK;
3577} 4117}
3578 4118
3579void noinline 4119ecb_noinline
4120void
3580ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4121ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3581{ 4122{
3582 if (expect_false (ev_is_active (w))) 4123 if (ecb_expect_false (ev_is_active (w)))
3583 return; 4124 return;
3584 4125
3585 ev_at (w) += mn_now; 4126 ev_at (w) += mn_now;
3586 4127
3587 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4128 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3588 4129
3589 EV_FREQUENT_CHECK; 4130 EV_FREQUENT_CHECK;
3590 4131
3591 ++timercnt; 4132 ++timercnt;
3592 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4133 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3593 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4134 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3594 ANHE_w (timers [ev_active (w)]) = (WT)w; 4135 ANHE_w (timers [ev_active (w)]) = (WT)w;
3595 ANHE_at_cache (timers [ev_active (w)]); 4136 ANHE_at_cache (timers [ev_active (w)]);
3596 upheap (timers, ev_active (w)); 4137 upheap (timers, ev_active (w));
3597 4138
3598 EV_FREQUENT_CHECK; 4139 EV_FREQUENT_CHECK;
3599 4140
3600 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4141 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3601} 4142}
3602 4143
3603void noinline 4144ecb_noinline
4145void
3604ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4146ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3605{ 4147{
3606 clear_pending (EV_A_ (W)w); 4148 clear_pending (EV_A_ (W)w);
3607 if (expect_false (!ev_is_active (w))) 4149 if (ecb_expect_false (!ev_is_active (w)))
3608 return; 4150 return;
3609 4151
3610 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
3611 4153
3612 { 4154 {
… …
3614 4156
3615 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4157 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3616 4158
3617 --timercnt; 4159 --timercnt;
3618 4160
3619 if (expect_true (active < timercnt + HEAP0)) 4161 if (ecb_expect_true (active < timercnt + HEAP0))
3620 { 4162 {
3621 timers [active] = timers [timercnt + HEAP0]; 4163 timers [active] = timers [timercnt + HEAP0];
3622 adjustheap (timers, timercnt, active); 4164 adjustheap (timers, timercnt, active);
3623 } 4165 }
3624 } 4166 }
… …
3628 ev_stop (EV_A_ (W)w); 4170 ev_stop (EV_A_ (W)w);
3629 4171
3630 EV_FREQUENT_CHECK; 4172 EV_FREQUENT_CHECK;
3631} 4173}
3632 4174
3633void noinline 4175ecb_noinline
4176void
3634ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4177ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3635{ 4178{
3636 EV_FREQUENT_CHECK; 4179 EV_FREQUENT_CHECK;
3637 4180
3638 clear_pending (EV_A_ (W)w); 4181 clear_pending (EV_A_ (W)w);
3639 4182
… …
3656 4199
3657 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3658} 4201}
3659 4202
3660ev_tstamp 4203ev_tstamp
3661ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4204ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3662{ 4205{
3663 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4206 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3664} 4207}
3665 4208
3666#if EV_PERIODIC_ENABLE 4209#if EV_PERIODIC_ENABLE
3667void noinline 4210ecb_noinline
4211void
3668ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4212ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3669{ 4213{
3670 if (expect_false (ev_is_active (w))) 4214 if (ecb_expect_false (ev_is_active (w)))
3671 return; 4215 return;
3672 4216
3673 if (w->reschedule_cb) 4217 if (w->reschedule_cb)
3674 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4218 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3675 else if (w->interval) 4219 else if (w->interval)
… …
3682 4226
3683 EV_FREQUENT_CHECK; 4227 EV_FREQUENT_CHECK;
3684 4228
3685 ++periodiccnt; 4229 ++periodiccnt;
3686 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4230 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3687 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4231 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3688 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4232 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3689 ANHE_at_cache (periodics [ev_active (w)]); 4233 ANHE_at_cache (periodics [ev_active (w)]);
3690 upheap (periodics, ev_active (w)); 4234 upheap (periodics, ev_active (w));
3691 4235
3692 EV_FREQUENT_CHECK; 4236 EV_FREQUENT_CHECK;
3693 4237
3694 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4238 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3695} 4239}
3696 4240
3697void noinline 4241ecb_noinline
4242void
3698ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4243ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3699{ 4244{
3700 clear_pending (EV_A_ (W)w); 4245 clear_pending (EV_A_ (W)w);
3701 if (expect_false (!ev_is_active (w))) 4246 if (ecb_expect_false (!ev_is_active (w)))
3702 return; 4247 return;
3703 4248
3704 EV_FREQUENT_CHECK; 4249 EV_FREQUENT_CHECK;
3705 4250
3706 { 4251 {
… …
3708 4253
3709 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4254 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3710 4255
3711 --periodiccnt; 4256 --periodiccnt;
3712 4257
3713 if (expect_true (active < periodiccnt + HEAP0)) 4258 if (ecb_expect_true (active < periodiccnt + HEAP0))
3714 { 4259 {
3715 periodics [active] = periodics [periodiccnt + HEAP0]; 4260 periodics [active] = periodics [periodiccnt + HEAP0];
3716 adjustheap (periodics, periodiccnt, active); 4261 adjustheap (periodics, periodiccnt, active);
3717 } 4262 }
3718 } 4263 }
… …
3720 ev_stop (EV_A_ (W)w); 4265 ev_stop (EV_A_ (W)w);
3721 4266
3722 EV_FREQUENT_CHECK; 4267 EV_FREQUENT_CHECK;
3723} 4268}
3724 4269
3725void noinline 4270ecb_noinline
4271void
3726ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4272ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3727{ 4273{
3728 /* TODO: use adjustheap and recalculation */ 4274 /* TODO: use adjustheap and recalculation */
3729 ev_periodic_stop (EV_A_ w); 4275 ev_periodic_stop (EV_A_ w);
3730 ev_periodic_start (EV_A_ w); 4276 ev_periodic_start (EV_A_ w);
3731} 4277}
… …
3735# define SA_RESTART 0 4281# define SA_RESTART 0
3736#endif 4282#endif
3737 4283
3738#if EV_SIGNAL_ENABLE 4284#if EV_SIGNAL_ENABLE
3739 4285
3740void noinline 4286ecb_noinline
4287void
3741ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4288ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3742{ 4289{
3743 if (expect_false (ev_is_active (w))) 4290 if (ecb_expect_false (ev_is_active (w)))
3744 return; 4291 return;
3745 4292
3746 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4293 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3747 4294
3748#if EV_MULTIPLICITY 4295#if EV_MULTIPLICITY
… …
3817 } 4364 }
3818 4365
3819 EV_FREQUENT_CHECK; 4366 EV_FREQUENT_CHECK;
3820} 4367}
3821 4368
3822void noinline 4369ecb_noinline
4370void
3823ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4371ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3824{ 4372{
3825 clear_pending (EV_A_ (W)w); 4373 clear_pending (EV_A_ (W)w);
3826 if (expect_false (!ev_is_active (w))) 4374 if (ecb_expect_false (!ev_is_active (w)))
3827 return; 4375 return;
3828 4376
3829 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
3830 4378
3831 wlist_del (&signals [w->signum - 1].head, (WL)w); 4379 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3859#endif 4407#endif
3860 4408
3861#if EV_CHILD_ENABLE 4409#if EV_CHILD_ENABLE
3862 4410
3863void 4411void
3864ev_child_start (EV_P_ ev_child *w) EV_THROW 4412ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3865{ 4413{
3866#if EV_MULTIPLICITY 4414#if EV_MULTIPLICITY
3867 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4415 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3868#endif 4416#endif
3869 if (expect_false (ev_is_active (w))) 4417 if (ecb_expect_false (ev_is_active (w)))
3870 return; 4418 return;
3871 4419
3872 EV_FREQUENT_CHECK; 4420 EV_FREQUENT_CHECK;
3873 4421
3874 ev_start (EV_A_ (W)w, 1); 4422 ev_start (EV_A_ (W)w, 1);
… …
3876 4424
3877 EV_FREQUENT_CHECK; 4425 EV_FREQUENT_CHECK;
3878} 4426}
3879 4427
3880void 4428void
3881ev_child_stop (EV_P_ ev_child *w) EV_THROW 4429ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3882{ 4430{
3883 clear_pending (EV_A_ (W)w); 4431 clear_pending (EV_A_ (W)w);
3884 if (expect_false (!ev_is_active (w))) 4432 if (ecb_expect_false (!ev_is_active (w)))
3885 return; 4433 return;
3886 4434
3887 EV_FREQUENT_CHECK; 4435 EV_FREQUENT_CHECK;
3888 4436
3889 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4437 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3903 4451
3904#define DEF_STAT_INTERVAL 5.0074891 4452#define DEF_STAT_INTERVAL 5.0074891
3905#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4453#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3906#define MIN_STAT_INTERVAL 0.1074891 4454#define MIN_STAT_INTERVAL 0.1074891
3907 4455
3908static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4456ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3909 4457
3910#if EV_USE_INOTIFY 4458#if EV_USE_INOTIFY
3911 4459
3912/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4460/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3913# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4461# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3914 4462
3915static void noinline 4463ecb_noinline
4464static void
3916infy_add (EV_P_ ev_stat *w) 4465infy_add (EV_P_ ev_stat *w)
3917{ 4466{
3918 w->wd = inotify_add_watch (fs_fd, w->path, 4467 w->wd = inotify_add_watch (fs_fd, w->path,
3919 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4468 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3920 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4469 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3984 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4533 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3985 ev_timer_again (EV_A_ &w->timer); 4534 ev_timer_again (EV_A_ &w->timer);
3986 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4535 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3987} 4536}
3988 4537
3989static void noinline 4538ecb_noinline
4539static void
3990infy_del (EV_P_ ev_stat *w) 4540infy_del (EV_P_ ev_stat *w)
3991{ 4541{
3992 int slot; 4542 int slot;
3993 int wd = w->wd; 4543 int wd = w->wd;
3994 4544
… …
4001 4551
4002 /* remove this watcher, if others are watching it, they will rearm */ 4552 /* remove this watcher, if others are watching it, they will rearm */
4003 inotify_rm_watch (fs_fd, wd); 4553 inotify_rm_watch (fs_fd, wd);
4004} 4554}
4005 4555
4006static void noinline 4556ecb_noinline
4557static void
4007infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4558infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4008{ 4559{
4009 if (slot < 0) 4560 if (slot < 0)
4010 /* overflow, need to check for all hash slots */ 4561 /* overflow, need to check for all hash slots */
4011 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4562 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4047 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4598 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4048 ofs += sizeof (struct inotify_event) + ev->len; 4599 ofs += sizeof (struct inotify_event) + ev->len;
4049 } 4600 }
4050} 4601}
4051 4602
4052inline_size void ecb_cold 4603inline_size ecb_cold
4604void
4053ev_check_2625 (EV_P) 4605ev_check_2625 (EV_P)
4054{ 4606{
4055 /* kernels < 2.6.25 are borked 4607 /* kernels < 2.6.25 are borked
4056 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4608 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4057 */ 4609 */
… …
4147#else 4699#else
4148# define EV_LSTAT(p,b) lstat (p, b) 4700# define EV_LSTAT(p,b) lstat (p, b)
4149#endif 4701#endif
4150 4702
4151void 4703void
4152ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4704ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4153{ 4705{
4154 if (lstat (w->path, &w->attr) < 0) 4706 if (lstat (w->path, &w->attr) < 0)
4155 w->attr.st_nlink = 0; 4707 w->attr.st_nlink = 0;
4156 else if (!w->attr.st_nlink) 4708 else if (!w->attr.st_nlink)
4157 w->attr.st_nlink = 1; 4709 w->attr.st_nlink = 1;
4158} 4710}
4159 4711
4160static void noinline 4712ecb_noinline
4713static void
4161stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4714stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4162{ 4715{
4163 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4716 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4164 4717
4165 ev_statdata prev = w->attr; 4718 ev_statdata prev = w->attr;
… …
4196 ev_feed_event (EV_A_ w, EV_STAT); 4749 ev_feed_event (EV_A_ w, EV_STAT);
4197 } 4750 }
4198} 4751}
4199 4752
4200void 4753void
4201ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4754ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4202{ 4755{
4203 if (expect_false (ev_is_active (w))) 4756 if (ecb_expect_false (ev_is_active (w)))
4204 return; 4757 return;
4205 4758
4206 ev_stat_stat (EV_A_ w); 4759 ev_stat_stat (EV_A_ w);
4207 4760
4208 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4761 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4227 4780
4228 EV_FREQUENT_CHECK; 4781 EV_FREQUENT_CHECK;
4229} 4782}
4230 4783
4231void 4784void
4232ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4785ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4233{ 4786{
4234 clear_pending (EV_A_ (W)w); 4787 clear_pending (EV_A_ (W)w);
4235 if (expect_false (!ev_is_active (w))) 4788 if (ecb_expect_false (!ev_is_active (w)))
4236 return; 4789 return;
4237 4790
4238 EV_FREQUENT_CHECK; 4791 EV_FREQUENT_CHECK;
4239 4792
4240#if EV_USE_INOTIFY 4793#if EV_USE_INOTIFY
… …
4253} 4806}
4254#endif 4807#endif
4255 4808
4256#if EV_IDLE_ENABLE 4809#if EV_IDLE_ENABLE
4257void 4810void
4258ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4811ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4259{ 4812{
4260 if (expect_false (ev_is_active (w))) 4813 if (ecb_expect_false (ev_is_active (w)))
4261 return; 4814 return;
4262 4815
4263 pri_adjust (EV_A_ (W)w); 4816 pri_adjust (EV_A_ (W)w);
4264 4817
4265 EV_FREQUENT_CHECK; 4818 EV_FREQUENT_CHECK;
… …
4268 int active = ++idlecnt [ABSPRI (w)]; 4821 int active = ++idlecnt [ABSPRI (w)];
4269 4822
4270 ++idleall; 4823 ++idleall;
4271 ev_start (EV_A_ (W)w, active); 4824 ev_start (EV_A_ (W)w, active);
4272 4825
4273 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4826 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4274 idles [ABSPRI (w)][active - 1] = w; 4827 idles [ABSPRI (w)][active - 1] = w;
4275 } 4828 }
4276 4829
4277 EV_FREQUENT_CHECK; 4830 EV_FREQUENT_CHECK;
4278} 4831}
4279 4832
4280void 4833void
4281ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4834ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4282{ 4835{
4283 clear_pending (EV_A_ (W)w); 4836 clear_pending (EV_A_ (W)w);
4284 if (expect_false (!ev_is_active (w))) 4837 if (ecb_expect_false (!ev_is_active (w)))
4285 return; 4838 return;
4286 4839
4287 EV_FREQUENT_CHECK; 4840 EV_FREQUENT_CHECK;
4288 4841
4289 { 4842 {
… …
4300} 4853}
4301#endif 4854#endif
4302 4855
4303#if EV_PREPARE_ENABLE 4856#if EV_PREPARE_ENABLE
4304void 4857void
4305ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4858ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4306{ 4859{
4307 if (expect_false (ev_is_active (w))) 4860 if (ecb_expect_false (ev_is_active (w)))
4308 return; 4861 return;
4309 4862
4310 EV_FREQUENT_CHECK; 4863 EV_FREQUENT_CHECK;
4311 4864
4312 ev_start (EV_A_ (W)w, ++preparecnt); 4865 ev_start (EV_A_ (W)w, ++preparecnt);
4313 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4866 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4314 prepares [preparecnt - 1] = w; 4867 prepares [preparecnt - 1] = w;
4315 4868
4316 EV_FREQUENT_CHECK; 4869 EV_FREQUENT_CHECK;
4317} 4870}
4318 4871
4319void 4872void
4320ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4873ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4321{ 4874{
4322 clear_pending (EV_A_ (W)w); 4875 clear_pending (EV_A_ (W)w);
4323 if (expect_false (!ev_is_active (w))) 4876 if (ecb_expect_false (!ev_is_active (w)))
4324 return; 4877 return;
4325 4878
4326 EV_FREQUENT_CHECK; 4879 EV_FREQUENT_CHECK;
4327 4880
4328 { 4881 {
… …
4338} 4891}
4339#endif 4892#endif
4340 4893
4341#if EV_CHECK_ENABLE 4894#if EV_CHECK_ENABLE
4342void 4895void
4343ev_check_start (EV_P_ ev_check *w) EV_THROW 4896ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4344{ 4897{
4345 if (expect_false (ev_is_active (w))) 4898 if (ecb_expect_false (ev_is_active (w)))
4346 return; 4899 return;
4347 4900
4348 EV_FREQUENT_CHECK; 4901 EV_FREQUENT_CHECK;
4349 4902
4350 ev_start (EV_A_ (W)w, ++checkcnt); 4903 ev_start (EV_A_ (W)w, ++checkcnt);
4351 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4904 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4352 checks [checkcnt - 1] = w; 4905 checks [checkcnt - 1] = w;
4353 4906
4354 EV_FREQUENT_CHECK; 4907 EV_FREQUENT_CHECK;
4355} 4908}
4356 4909
4357void 4910void
4358ev_check_stop (EV_P_ ev_check *w) EV_THROW 4911ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4359{ 4912{
4360 clear_pending (EV_A_ (W)w); 4913 clear_pending (EV_A_ (W)w);
4361 if (expect_false (!ev_is_active (w))) 4914 if (ecb_expect_false (!ev_is_active (w)))
4362 return; 4915 return;
4363 4916
4364 EV_FREQUENT_CHECK; 4917 EV_FREQUENT_CHECK;
4365 4918
4366 { 4919 {
… …
4375 EV_FREQUENT_CHECK; 4928 EV_FREQUENT_CHECK;
4376} 4929}
4377#endif 4930#endif
4378 4931
4379#if EV_EMBED_ENABLE 4932#if EV_EMBED_ENABLE
4380void noinline 4933ecb_noinline
4934void
4381ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4935ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4382{ 4936{
4383 ev_run (w->other, EVRUN_NOWAIT); 4937 ev_run (w->other, EVRUN_NOWAIT);
4384} 4938}
4385 4939
4386static void 4940static void
… …
4434 ev_idle_stop (EV_A_ idle); 4988 ev_idle_stop (EV_A_ idle);
4435} 4989}
4436#endif 4990#endif
4437 4991
4438void 4992void
4439ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4993ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4440{ 4994{
4441 if (expect_false (ev_is_active (w))) 4995 if (ecb_expect_false (ev_is_active (w)))
4442 return; 4996 return;
4443 4997
4444 { 4998 {
4445 EV_P = w->other; 4999 EV_P = w->other;
4446 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5000 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4465 5019
4466 EV_FREQUENT_CHECK; 5020 EV_FREQUENT_CHECK;
4467} 5021}
4468 5022
4469void 5023void
4470ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5024ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4471{ 5025{
4472 clear_pending (EV_A_ (W)w); 5026 clear_pending (EV_A_ (W)w);
4473 if (expect_false (!ev_is_active (w))) 5027 if (ecb_expect_false (!ev_is_active (w)))
4474 return; 5028 return;
4475 5029
4476 EV_FREQUENT_CHECK; 5030 EV_FREQUENT_CHECK;
4477 5031
4478 ev_io_stop (EV_A_ &w->io); 5032 ev_io_stop (EV_A_ &w->io);
… …
4485} 5039}
4486#endif 5040#endif
4487 5041
4488#if EV_FORK_ENABLE 5042#if EV_FORK_ENABLE
4489void 5043void
4490ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5044ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4491{ 5045{
4492 if (expect_false (ev_is_active (w))) 5046 if (ecb_expect_false (ev_is_active (w)))
4493 return; 5047 return;
4494 5048
4495 EV_FREQUENT_CHECK; 5049 EV_FREQUENT_CHECK;
4496 5050
4497 ev_start (EV_A_ (W)w, ++forkcnt); 5051 ev_start (EV_A_ (W)w, ++forkcnt);
4498 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5052 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4499 forks [forkcnt - 1] = w; 5053 forks [forkcnt - 1] = w;
4500 5054
4501 EV_FREQUENT_CHECK; 5055 EV_FREQUENT_CHECK;
4502} 5056}
4503 5057
4504void 5058void
4505ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5059ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4506{ 5060{
4507 clear_pending (EV_A_ (W)w); 5061 clear_pending (EV_A_ (W)w);
4508 if (expect_false (!ev_is_active (w))) 5062 if (ecb_expect_false (!ev_is_active (w)))
4509 return; 5063 return;
4510 5064
4511 EV_FREQUENT_CHECK; 5065 EV_FREQUENT_CHECK;
4512 5066
4513 { 5067 {
… …
4523} 5077}
4524#endif 5078#endif
4525 5079
4526#if EV_CLEANUP_ENABLE 5080#if EV_CLEANUP_ENABLE
4527void 5081void
4528ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5082ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4529{ 5083{
4530 if (expect_false (ev_is_active (w))) 5084 if (ecb_expect_false (ev_is_active (w)))
4531 return; 5085 return;
4532 5086
4533 EV_FREQUENT_CHECK; 5087 EV_FREQUENT_CHECK;
4534 5088
4535 ev_start (EV_A_ (W)w, ++cleanupcnt); 5089 ev_start (EV_A_ (W)w, ++cleanupcnt);
4536 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5090 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4537 cleanups [cleanupcnt - 1] = w; 5091 cleanups [cleanupcnt - 1] = w;
4538 5092
4539 /* cleanup watchers should never keep a refcount on the loop */ 5093 /* cleanup watchers should never keep a refcount on the loop */
4540 ev_unref (EV_A); 5094 ev_unref (EV_A);
4541 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
4542} 5096}
4543 5097
4544void 5098void
4545ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5099ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4546{ 5100{
4547 clear_pending (EV_A_ (W)w); 5101 clear_pending (EV_A_ (W)w);
4548 if (expect_false (!ev_is_active (w))) 5102 if (ecb_expect_false (!ev_is_active (w)))
4549 return; 5103 return;
4550 5104
4551 EV_FREQUENT_CHECK; 5105 EV_FREQUENT_CHECK;
4552 ev_ref (EV_A); 5106 ev_ref (EV_A);
4553 5107
… …
4564} 5118}
4565#endif 5119#endif
4566 5120
4567#if EV_ASYNC_ENABLE 5121#if EV_ASYNC_ENABLE
4568void 5122void
4569ev_async_start (EV_P_ ev_async *w) EV_THROW 5123ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4570{ 5124{
4571 if (expect_false (ev_is_active (w))) 5125 if (ecb_expect_false (ev_is_active (w)))
4572 return; 5126 return;
4573 5127
4574 w->sent = 0; 5128 w->sent = 0;
4575 5129
4576 evpipe_init (EV_A); 5130 evpipe_init (EV_A);
4577 5131
4578 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4579 5133
4580 ev_start (EV_A_ (W)w, ++asynccnt); 5134 ev_start (EV_A_ (W)w, ++asynccnt);
4581 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5135 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4582 asyncs [asynccnt - 1] = w; 5136 asyncs [asynccnt - 1] = w;
4583 5137
4584 EV_FREQUENT_CHECK; 5138 EV_FREQUENT_CHECK;
4585} 5139}
4586 5140
4587void 5141void
4588ev_async_stop (EV_P_ ev_async *w) EV_THROW 5142ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4589{ 5143{
4590 clear_pending (EV_A_ (W)w); 5144 clear_pending (EV_A_ (W)w);
4591 if (expect_false (!ev_is_active (w))) 5145 if (ecb_expect_false (!ev_is_active (w)))
4592 return; 5146 return;
4593 5147
4594 EV_FREQUENT_CHECK; 5148 EV_FREQUENT_CHECK;
4595 5149
4596 { 5150 {
… …
4604 5158
4605 EV_FREQUENT_CHECK; 5159 EV_FREQUENT_CHECK;
4606} 5160}
4607 5161
4608void 5162void
4609ev_async_send (EV_P_ ev_async *w) EV_THROW 5163ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4610{ 5164{
4611 w->sent = 1; 5165 w->sent = 1;
4612 evpipe_write (EV_A_ &async_pending); 5166 evpipe_write (EV_A_ &async_pending);
4613} 5167}
4614#endif 5168#endif
… …
4651 5205
4652 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5206 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4653} 5207}
4654 5208
4655void 5209void
4656ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5210ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4657{ 5211{
4658 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5212 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4659
4660 if (expect_false (!once))
4661 {
4662 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4663 return;
4664 }
4665 5213
4666 once->cb = cb; 5214 once->cb = cb;
4667 once->arg = arg; 5215 once->arg = arg;
4668 5216
4669 ev_init (&once->io, once_cb_io); 5217 ev_init (&once->io, once_cb_io);
… …
4682} 5230}
4683 5231
4684/*****************************************************************************/ 5232/*****************************************************************************/
4685 5233
4686#if EV_WALK_ENABLE 5234#if EV_WALK_ENABLE
4687void ecb_cold 5235ecb_cold
5236void
4688ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5237ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4689{ 5238{
4690 int i, j; 5239 int i, j;
4691 ev_watcher_list *wl, *wn; 5240 ev_watcher_list *wl, *wn;
4692 5241
4693 if (types & (EV_IO | EV_EMBED)) 5242 if (types & (EV_IO | EV_EMBED))

Diff Legend

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