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Comparing libev/ev.c (file contents):
Revision 1.443 by root, Thu May 31 17:53:26 2012 UTC vs.
Revision 1.501 by root, Mon Jul 1 21:47:42 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
337#ifndef EV_USE_IOURING
338# if __linux
339# define EV_USE_IOURING 0
340# else
341# define EV_USE_IOURING 0
342# endif
343#endif
344
312#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 348# else
316# define EV_USE_INOTIFY 0 349# define EV_USE_INOTIFY 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 388# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 389#endif
357 390
358#ifndef EV_HEAP_CACHE_AT 391#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 392# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
393#endif
394
395#ifdef __ANDROID__
396/* supposedly, android doesn't typedef fd_mask */
397# undef EV_USE_SELECT
398# define EV_USE_SELECT 0
399/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
400# undef EV_USE_CLOCK_SYSCALL
401# define EV_USE_CLOCK_SYSCALL 0
402#endif
403
404/* aix's poll.h seems to cause lots of trouble */
405#ifdef _AIX
406/* AIX has a completely broken poll.h header */
407# undef EV_USE_POLL
408# define EV_USE_POLL 0
360#endif 409#endif
361 410
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 411/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */ 412/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 413#if EV_USE_CLOCK_SYSCALL
365# include <sys/syscall.h> 414# include <sys/syscall.h>
366# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
368# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
369# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
370# else 420# else
371# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
372# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
373# endif 423# endif
374#endif 424#endif
375 425
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 426/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377 427
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
384#ifndef CLOCK_MONOTONIC 428#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 429# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 430# define EV_USE_MONOTONIC 0
387#endif 431#endif
388 432
… …
398 442
399#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
400/* hp-ux has it in sys/time.h, which we unconditionally include above */ 444/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux 445# if !defined _WIN32 && !defined __hpux
402# include <sys/select.h> 446# include <sys/select.h>
447# endif
448#endif
449
450#if EV_USE_LINUXAIO
451# include <sys/syscall.h>
452# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */
453# undef EV_USE_LINUXAIO
454# define EV_USE_LINUXAIO 0
455# else
456# define EV_NEED_SYSCALL 1
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !__alpha && !SYS_io_uring_setup
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
403# endif 472# endif
404#endif 473#endif
405 474
406#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
407# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
449 uint32_t ssi_signo; 518 uint32_t ssi_signo;
450 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
451}; 520};
452#endif 521#endif
453 522
454/**/ 523/*****************************************************************************/
524
525#if EV_NEED_SYSCALL
526
527#include <sys/syscall.h>
528
529/*
530 * define some syscall wrappers for common architectures
531 * this is mostly for nice looks during debugging, not performance.
532 * our syscalls return < 0, not == -1, on error. which is good
533 * enough for linux aio.
534 * TODO: arm is also common nowadays, maybe even mips and x86
535 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
536 */
537#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
538 /* the costly errno access probably kills this for size optimisation */
539
540 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5) \
541 ({ \
542 long res; \
543 register unsigned long r5 __asm__ ("r8" ); \
544 register unsigned long r4 __asm__ ("r10"); \
545 register unsigned long r3 __asm__ ("rdx"); \
546 register unsigned long r2 __asm__ ("rsi"); \
547 register unsigned long r1 __asm__ ("rdi"); \
548 if (narg >= 5) r5 = (unsigned long)(arg5); \
549 if (narg >= 4) r4 = (unsigned long)(arg4); \
550 if (narg >= 3) r3 = (unsigned long)(arg3); \
551 if (narg >= 2) r2 = (unsigned long)(arg2); \
552 if (narg >= 1) r1 = (unsigned long)(arg1); \
553 __asm__ __volatile__ ( \
554 "syscall\n\t" \
555 : "=a" (res) \
556 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
557 : "cc", "r11", "cx", "memory"); \
558 errno = -res; \
559 res; \
560 })
561
562#endif
563
564#ifdef ev_syscall
565 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0
566 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0)
567 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0)
568 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0)
569 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0)
570 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5)
571#else
572 #define ev_syscall0(nr) syscall (nr)
573 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
574 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
575 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
576 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
577 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
578#endif
579
580#endif
581
582/*****************************************************************************/
455 583
456#if EV_VERIFY >= 3 584#if EV_VERIFY >= 3
457# define EV_FREQUENT_CHECK ev_verify (EV_A) 585# define EV_FREQUENT_CHECK ev_verify (EV_A)
458#else 586#else
459# define EV_FREQUENT_CHECK do { } while (0) 587# define EV_FREQUENT_CHECK do { } while (0)
… …
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 603/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 604/* ECB.H BEGIN */
477/* 605/*
478 * libecb - http://software.schmorp.de/pkg/libecb 606 * libecb - http://software.schmorp.de/pkg/libecb
479 * 607 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 608 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 609 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 610 * All rights reserved.
483 * 611 *
484 * Redistribution and use in source and binary forms, with or without modifica- 612 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 613 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 627 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 628 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 629 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 630 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 631 * OF THE POSSIBILITY OF SUCH DAMAGE.
632 *
633 * Alternatively, the contents of this file may be used under the terms of
634 * the GNU General Public License ("GPL") version 2 or any later version,
635 * in which case the provisions of the GPL are applicable instead of
636 * the above. If you wish to allow the use of your version of this file
637 * only under the terms of the GPL and not to allow others to use your
638 * version of this file under the BSD license, indicate your decision
639 * by deleting the provisions above and replace them with the notice
640 * and other provisions required by the GPL. If you do not delete the
641 * provisions above, a recipient may use your version of this file under
642 * either the BSD or the GPL.
504 */ 643 */
505 644
506#ifndef ECB_H 645#ifndef ECB_H
507#define ECB_H 646#define ECB_H
508 647
509/* 16 bits major, 16 bits minor */ 648/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001 649#define ECB_VERSION 0x00010006
511 650
512#ifdef _WIN32 651#ifdef _WIN32
513 typedef signed char int8_t; 652 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 653 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 654 typedef signed short int16_t;
… …
530 #else 669 #else
531 #define ECB_PTRSIZE 4 670 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t; 671 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 672 typedef int32_t intptr_t;
534 #endif 673 #endif
535 typedef intptr_t ptrdiff_t;
536#else 674#else
537 #include <inttypes.h> 675 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU 676 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
539 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
540 #else 678 #else
541 #define ECB_PTRSIZE 4 679 #define ECB_PTRSIZE 4
680 #endif
681#endif
682
683#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
684#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
685
686/* work around x32 idiocy by defining proper macros */
687#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
688 #if _ILP32
689 #define ECB_AMD64_X32 1
690 #else
691 #define ECB_AMD64 1
542 #endif 692 #endif
543#endif 693#endif
544 694
545/* many compilers define _GNUC_ to some versions but then only implement 695/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions, 696 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers. 697 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so. 698 * or so.
549 * we try to detect these and simply assume they are not gcc - if they have 699 * we try to detect these and simply assume they are not gcc - if they have
550 * an issue with that they should have done it right in the first place. 700 * an issue with that they should have done it right in the first place.
551 */ 701 */
552#ifndef ECB_GCC_VERSION
553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 702#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
554 #define ECB_GCC_VERSION(major,minor) 0 703 #define ECB_GCC_VERSION(major,minor) 0
555 #else 704#else
556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 705 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
557 #endif 706#endif
558#endif
559 707
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 708#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
561#define ECB_C99 (__STDC_VERSION__ >= 199901L) 709
562#define ECB_C11 (__STDC_VERSION__ >= 201112L) 710#if __clang__ && defined __has_builtin
711 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
712#else
713 #define ECB_CLANG_BUILTIN(x) 0
714#endif
715
716#if __clang__ && defined __has_extension
717 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
718#else
719 #define ECB_CLANG_EXTENSION(x) 0
720#endif
721
563#define ECB_CPP (__cplusplus+0) 722#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP11 (__cplusplus >= 201103L) 723#define ECB_CPP11 (__cplusplus >= 201103L)
724#define ECB_CPP14 (__cplusplus >= 201402L)
725#define ECB_CPP17 (__cplusplus >= 201703L)
726
727#if ECB_CPP
728 #define ECB_C 0
729 #define ECB_STDC_VERSION 0
730#else
731 #define ECB_C 1
732 #define ECB_STDC_VERSION __STDC_VERSION__
733#endif
734
735#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
736#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
737#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
738
739#if ECB_CPP
740 #define ECB_EXTERN_C extern "C"
741 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
742 #define ECB_EXTERN_C_END }
743#else
744 #define ECB_EXTERN_C extern
745 #define ECB_EXTERN_C_BEG
746 #define ECB_EXTERN_C_END
747#endif
565 748
566/*****************************************************************************/ 749/*****************************************************************************/
567 750
568/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 751/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
569/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 752/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
… …
574 757
575#if ECB_NO_SMP 758#if ECB_NO_SMP
576 #define ECB_MEMORY_FENCE do { } while (0) 759 #define ECB_MEMORY_FENCE do { } while (0)
577#endif 760#endif
578 761
762/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
763#if __xlC__ && ECB_CPP
764 #include <builtins.h>
765#endif
766
767#if 1400 <= _MSC_VER
768 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
769#endif
770
579#ifndef ECB_MEMORY_FENCE 771#ifndef ECB_MEMORY_FENCE
580 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 772 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
773 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
581 #if __i386 || __i386__ 774 #if __i386 || __i386__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 775 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 776 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 777 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 778 #elif ECB_GCC_AMD64
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 779 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
587 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 780 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 781 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 782 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
590 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 783 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
784 #elif defined __ARM_ARCH_2__ \
785 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
786 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
787 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
788 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
789 || defined __ARM_ARCH_5TEJ__
790 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 791 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
592 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 792 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
793 || defined __ARM_ARCH_6T2__
593 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 794 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 795 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 796 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 797 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
597 #elif __sparc || __sparc__ 798 #elif __aarch64__
799 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
800 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
598 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 801 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 802 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 803 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
601 #elif defined __s390__ || defined __s390x__ 804 #elif defined __s390__ || defined __s390x__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 805 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
603 #elif defined __mips__ 806 #elif defined __mips__
807 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
808 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
604 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 809 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
605 #elif defined __alpha__ 810 #elif defined __alpha__
606 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 811 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607 #elif defined __hppa__ 812 #elif defined __hppa__
608 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 813 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 814 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif defined __ia64__ 815 #elif defined __ia64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 816 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
817 #elif defined __m68k__
818 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
819 #elif defined __m88k__
820 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
821 #elif defined __sh__
822 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
612 #endif 823 #endif
613 #endif 824 #endif
614#endif 825#endif
615 826
616#ifndef ECB_MEMORY_FENCE 827#ifndef ECB_MEMORY_FENCE
617 #if ECB_GCC_VERSION(4,7) 828 #if ECB_GCC_VERSION(4,7)
618 /* see comment below (stdatomic.h) about the C11 memory model. */ 829 /* see comment below (stdatomic.h) about the C11 memory model. */
619 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 830 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620 #elif defined __clang && __has_feature (cxx_atomic) 831 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
832 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
833 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
834
835 #elif ECB_CLANG_EXTENSION(c_atomic)
621 /* see comment below (stdatomic.h) about the C11 memory model. */ 836 /* see comment below (stdatomic.h) about the C11 memory model. */
622 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 837 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
838 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
839 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
840 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
841
623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 842 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
624 #define ECB_MEMORY_FENCE __sync_synchronize () 843 #define ECB_MEMORY_FENCE __sync_synchronize ()
844 #elif _MSC_VER >= 1500 /* VC++ 2008 */
845 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
846 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
847 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
848 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
849 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
625 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 850 #elif _MSC_VER >= 1400 /* VC++ 2005 */
626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 851 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
627 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 852 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
628 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 853 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 854 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
630 #elif defined _WIN32 855 #elif defined _WIN32
631 #include <WinNT.h> 856 #include <WinNT.h>
632 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 857 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
633 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 858 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #include <mbarrier.h> 859 #include <mbarrier.h>
635 #define ECB_MEMORY_FENCE __machine_rw_barrier () 860 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
636 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 861 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
637 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 862 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
863 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
638 #elif __xlC__ 864 #elif __xlC__
639 #define ECB_MEMORY_FENCE __sync () 865 #define ECB_MEMORY_FENCE __sync ()
640 #endif 866 #endif
641#endif 867#endif
642 868
643#ifndef ECB_MEMORY_FENCE 869#ifndef ECB_MEMORY_FENCE
644 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 870 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
645 /* we assume that these memory fences work on all variables/all memory accesses, */ 871 /* we assume that these memory fences work on all variables/all memory accesses, */
646 /* not just C11 atomics and atomic accesses */ 872 /* not just C11 atomics and atomic accesses */
647 #include <stdatomic.h> 873 #include <stdatomic.h>
648 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
649 /* any fence other than seq_cst, which isn't very efficient for us. */
650 /* Why that is, we don't know - either the C11 memory model is quite useless */
651 /* for most usages, or gcc and clang have a bug */
652 /* I *currently* lean towards the latter, and inefficiently implement */
653 /* all three of ecb's fences as a seq_cst fence */
654 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 874 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
875 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
876 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
655 #endif 877 #endif
656#endif 878#endif
657 879
658#ifndef ECB_MEMORY_FENCE 880#ifndef ECB_MEMORY_FENCE
659 #if !ECB_AVOID_PTHREADS 881 #if !ECB_AVOID_PTHREADS
… …
679 901
680#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 902#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 903 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
682#endif 904#endif
683 905
906#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
907 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
908#endif
909
684/*****************************************************************************/ 910/*****************************************************************************/
685 911
686#if __cplusplus 912#if ECB_CPP
687 #define ecb_inline static inline 913 #define ecb_inline static inline
688#elif ECB_GCC_VERSION(2,5) 914#elif ECB_GCC_VERSION(2,5)
689 #define ecb_inline static __inline__ 915 #define ecb_inline static __inline__
690#elif ECB_C99 916#elif ECB_C99
691 #define ecb_inline static inline 917 #define ecb_inline static inline
… …
705 931
706#define ECB_CONCAT_(a, b) a ## b 932#define ECB_CONCAT_(a, b) a ## b
707#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 933#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
708#define ECB_STRINGIFY_(a) # a 934#define ECB_STRINGIFY_(a) # a
709#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 935#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
936#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
710 937
711#define ecb_function_ ecb_inline 938#define ecb_function_ ecb_inline
712 939
713#if ECB_GCC_VERSION(3,1) 940#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
714 #define ecb_attribute(attrlist) __attribute__(attrlist) 941 #define ecb_attribute(attrlist) __attribute__ (attrlist)
942#else
943 #define ecb_attribute(attrlist)
944#endif
945
946#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
715 #define ecb_is_constant(expr) __builtin_constant_p (expr) 947 #define ecb_is_constant(expr) __builtin_constant_p (expr)
948#else
949 /* possible C11 impl for integral types
950 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
951 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
952
953 #define ecb_is_constant(expr) 0
954#endif
955
956#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
716 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 957 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
958#else
959 #define ecb_expect(expr,value) (expr)
960#endif
961
962#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
717 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 963 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
718#else 964#else
719 #define ecb_attribute(attrlist)
720 #define ecb_is_constant(expr) 0
721 #define ecb_expect(expr,value) (expr)
722 #define ecb_prefetch(addr,rw,locality) 965 #define ecb_prefetch(addr,rw,locality)
723#endif 966#endif
724 967
725/* no emulation for ecb_decltype */ 968/* no emulation for ecb_decltype */
726#if ECB_GCC_VERSION(4,5) 969#if ECB_CPP11
970 // older implementations might have problems with decltype(x)::type, work around it
971 template<class T> struct ecb_decltype_t { typedef T type; };
727 #define ecb_decltype(x) __decltype(x) 972 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
728#elif ECB_GCC_VERSION(3,0) 973#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
729 #define ecb_decltype(x) __typeof(x) 974 #define ecb_decltype(x) __typeof__ (x)
730#endif 975#endif
731 976
977#if _MSC_VER >= 1300
978 #define ecb_deprecated __declspec (deprecated)
979#else
980 #define ecb_deprecated ecb_attribute ((__deprecated__))
981#endif
982
983#if _MSC_VER >= 1500
984 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
985#elif ECB_GCC_VERSION(4,5)
986 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
987#else
988 #define ecb_deprecated_message(msg) ecb_deprecated
989#endif
990
991#if _MSC_VER >= 1400
992 #define ecb_noinline __declspec (noinline)
993#else
732#define ecb_noinline ecb_attribute ((__noinline__)) 994 #define ecb_noinline ecb_attribute ((__noinline__))
995#endif
996
733#define ecb_unused ecb_attribute ((__unused__)) 997#define ecb_unused ecb_attribute ((__unused__))
734#define ecb_const ecb_attribute ((__const__)) 998#define ecb_const ecb_attribute ((__const__))
735#define ecb_pure ecb_attribute ((__pure__)) 999#define ecb_pure ecb_attribute ((__pure__))
736 1000
737#if ECB_C11 1001#if ECB_C11 || __IBMC_NORETURN
1002 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
738 #define ecb_noreturn _Noreturn 1003 #define ecb_noreturn _Noreturn
1004#elif ECB_CPP11
1005 #define ecb_noreturn [[noreturn]]
1006#elif _MSC_VER >= 1200
1007 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
1008 #define ecb_noreturn __declspec (noreturn)
739#else 1009#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__)) 1010 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif 1011#endif
742 1012
743#if ECB_GCC_VERSION(4,3) 1013#if ECB_GCC_VERSION(4,3)
… …
758/* for compatibility to the rest of the world */ 1028/* for compatibility to the rest of the world */
759#define ecb_likely(expr) ecb_expect_true (expr) 1029#define ecb_likely(expr) ecb_expect_true (expr)
760#define ecb_unlikely(expr) ecb_expect_false (expr) 1030#define ecb_unlikely(expr) ecb_expect_false (expr)
761 1031
762/* count trailing zero bits and count # of one bits */ 1032/* count trailing zero bits and count # of one bits */
763#if ECB_GCC_VERSION(3,4) 1033#if ECB_GCC_VERSION(3,4) \
1034 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
1035 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
1036 && ECB_CLANG_BUILTIN(__builtin_popcount))
764 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 1037 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
765 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 1038 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
766 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 1039 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
767 #define ecb_ctz32(x) __builtin_ctz (x) 1040 #define ecb_ctz32(x) __builtin_ctz (x)
768 #define ecb_ctz64(x) __builtin_ctzll (x) 1041 #define ecb_ctz64(x) __builtin_ctzll (x)
769 #define ecb_popcount32(x) __builtin_popcount (x) 1042 #define ecb_popcount32(x) __builtin_popcount (x)
770 /* no popcountll */ 1043 /* no popcountll */
771#else 1044#else
772 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1045 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
773 ecb_function_ int 1046 ecb_function_ ecb_const int
774 ecb_ctz32 (uint32_t x) 1047 ecb_ctz32 (uint32_t x)
775 { 1048 {
1049#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1050 unsigned long r;
1051 _BitScanForward (&r, x);
1052 return (int)r;
1053#else
776 int r = 0; 1054 int r = 0;
777 1055
778 x &= ~x + 1; /* this isolates the lowest bit */ 1056 x &= ~x + 1; /* this isolates the lowest bit */
779 1057
780#if ECB_branchless_on_i386 1058#if ECB_branchless_on_i386
… …
790 if (x & 0xff00ff00) r += 8; 1068 if (x & 0xff00ff00) r += 8;
791 if (x & 0xffff0000) r += 16; 1069 if (x & 0xffff0000) r += 16;
792#endif 1070#endif
793 1071
794 return r; 1072 return r;
1073#endif
795 } 1074 }
796 1075
797 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1076 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
798 ecb_function_ int 1077 ecb_function_ ecb_const int
799 ecb_ctz64 (uint64_t x) 1078 ecb_ctz64 (uint64_t x)
800 { 1079 {
1080#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1081 unsigned long r;
1082 _BitScanForward64 (&r, x);
1083 return (int)r;
1084#else
801 int shift = x & 0xffffffffU ? 0 : 32; 1085 int shift = x & 0xffffffff ? 0 : 32;
802 return ecb_ctz32 (x >> shift) + shift; 1086 return ecb_ctz32 (x >> shift) + shift;
1087#endif
803 } 1088 }
804 1089
805 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1090 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
806 ecb_function_ int 1091 ecb_function_ ecb_const int
807 ecb_popcount32 (uint32_t x) 1092 ecb_popcount32 (uint32_t x)
808 { 1093 {
809 x -= (x >> 1) & 0x55555555; 1094 x -= (x >> 1) & 0x55555555;
810 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1095 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
811 x = ((x >> 4) + x) & 0x0f0f0f0f; 1096 x = ((x >> 4) + x) & 0x0f0f0f0f;
812 x *= 0x01010101; 1097 x *= 0x01010101;
813 1098
814 return x >> 24; 1099 return x >> 24;
815 } 1100 }
816 1101
817 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1102 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
818 ecb_function_ int ecb_ld32 (uint32_t x) 1103 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
819 { 1104 {
1105#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1106 unsigned long r;
1107 _BitScanReverse (&r, x);
1108 return (int)r;
1109#else
820 int r = 0; 1110 int r = 0;
821 1111
822 if (x >> 16) { x >>= 16; r += 16; } 1112 if (x >> 16) { x >>= 16; r += 16; }
823 if (x >> 8) { x >>= 8; r += 8; } 1113 if (x >> 8) { x >>= 8; r += 8; }
824 if (x >> 4) { x >>= 4; r += 4; } 1114 if (x >> 4) { x >>= 4; r += 4; }
825 if (x >> 2) { x >>= 2; r += 2; } 1115 if (x >> 2) { x >>= 2; r += 2; }
826 if (x >> 1) { r += 1; } 1116 if (x >> 1) { r += 1; }
827 1117
828 return r; 1118 return r;
1119#endif
829 } 1120 }
830 1121
831 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1122 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
832 ecb_function_ int ecb_ld64 (uint64_t x) 1123 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
833 { 1124 {
1125#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1126 unsigned long r;
1127 _BitScanReverse64 (&r, x);
1128 return (int)r;
1129#else
834 int r = 0; 1130 int r = 0;
835 1131
836 if (x >> 32) { x >>= 32; r += 32; } 1132 if (x >> 32) { x >>= 32; r += 32; }
837 1133
838 return r + ecb_ld32 (x); 1134 return r + ecb_ld32 (x);
1135#endif
839 } 1136 }
840#endif 1137#endif
841 1138
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1139ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
843ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1140ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
844ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1141ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
845ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1142ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846 1143
847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1144ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1145ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
849{ 1146{
850 return ( (x * 0x0802U & 0x22110U) 1147 return ( (x * 0x0802U & 0x22110U)
851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1148 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852} 1149}
853 1150
854ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1151ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
855ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1152ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
856{ 1153{
857 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1154 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
858 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1155 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
859 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1156 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
860 x = ( x >> 8 ) | ( x << 8); 1157 x = ( x >> 8 ) | ( x << 8);
861 1158
862 return x; 1159 return x;
863} 1160}
864 1161
865ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1162ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
866ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1163ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
867{ 1164{
868 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1165 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
869 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1166 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
870 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1167 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
871 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1168 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
874 return x; 1171 return x;
875} 1172}
876 1173
877/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1174/* popcount64 is only available on 64 bit cpus as gcc builtin */
878/* so for this version we are lazy */ 1175/* so for this version we are lazy */
879ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1176ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
880ecb_function_ int 1177ecb_function_ ecb_const int
881ecb_popcount64 (uint64_t x) 1178ecb_popcount64 (uint64_t x)
882{ 1179{
883 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1180 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
884} 1181}
885 1182
886ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1183ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
887ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1184ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
888ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1185ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
889ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1186ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
890ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1187ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
891ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1188ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
892ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1189ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
893ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1190ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
894 1191
895ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1192ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
896ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1193ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
897ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1194ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
898ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1195ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
899ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1196ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
900ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1197ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
901ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1198ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
902ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1199ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
903 1200
904#if ECB_GCC_VERSION(4,3) 1201#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1202 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1203 #define ecb_bswap16(x) __builtin_bswap16 (x)
1204 #else
905 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1205 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1206 #endif
906 #define ecb_bswap32(x) __builtin_bswap32 (x) 1207 #define ecb_bswap32(x) __builtin_bswap32 (x)
907 #define ecb_bswap64(x) __builtin_bswap64 (x) 1208 #define ecb_bswap64(x) __builtin_bswap64 (x)
1209#elif _MSC_VER
1210 #include <stdlib.h>
1211 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1212 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1213 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
908#else 1214#else
909 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1215 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
910 ecb_function_ uint16_t 1216 ecb_function_ ecb_const uint16_t
911 ecb_bswap16 (uint16_t x) 1217 ecb_bswap16 (uint16_t x)
912 { 1218 {
913 return ecb_rotl16 (x, 8); 1219 return ecb_rotl16 (x, 8);
914 } 1220 }
915 1221
916 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1222 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
917 ecb_function_ uint32_t 1223 ecb_function_ ecb_const uint32_t
918 ecb_bswap32 (uint32_t x) 1224 ecb_bswap32 (uint32_t x)
919 { 1225 {
920 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1226 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
921 } 1227 }
922 1228
923 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1229 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
924 ecb_function_ uint64_t 1230 ecb_function_ ecb_const uint64_t
925 ecb_bswap64 (uint64_t x) 1231 ecb_bswap64 (uint64_t x)
926 { 1232 {
927 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1233 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
928 } 1234 }
929#endif 1235#endif
930 1236
931#if ECB_GCC_VERSION(4,5) 1237#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
932 #define ecb_unreachable() __builtin_unreachable () 1238 #define ecb_unreachable() __builtin_unreachable ()
933#else 1239#else
934 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1240 /* this seems to work fine, but gcc always emits a warning for it :/ */
935 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1241 ecb_inline ecb_noreturn void ecb_unreachable (void);
936 ecb_inline void ecb_unreachable (void) { } 1242 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
937#endif 1243#endif
938 1244
939/* try to tell the compiler that some condition is definitely true */ 1245/* try to tell the compiler that some condition is definitely true */
940#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1246#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
941 1247
942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1248ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
943ecb_inline unsigned char 1249ecb_inline ecb_const uint32_t
944ecb_byteorder_helper (void) 1250ecb_byteorder_helper (void)
945{ 1251{
946 const uint32_t u = 0x11223344; 1252 /* the union code still generates code under pressure in gcc, */
947 return *(unsigned char *)&u; 1253 /* but less than using pointers, and always seems to */
1254 /* successfully return a constant. */
1255 /* the reason why we have this horrible preprocessor mess */
1256 /* is to avoid it in all cases, at least on common architectures */
1257 /* or when using a recent enough gcc version (>= 4.6) */
1258#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1259 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1260 #define ECB_LITTLE_ENDIAN 1
1261 return 0x44332211;
1262#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1263 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1264 #define ECB_BIG_ENDIAN 1
1265 return 0x11223344;
1266#else
1267 union
1268 {
1269 uint8_t c[4];
1270 uint32_t u;
1271 } u = { 0x11, 0x22, 0x33, 0x44 };
1272 return u.u;
1273#endif
948} 1274}
949 1275
950ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1276ecb_inline ecb_const ecb_bool ecb_big_endian (void);
951ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1277ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
952ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1278ecb_inline ecb_const ecb_bool ecb_little_endian (void);
953ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1279ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
954 1280
955#if ECB_GCC_VERSION(3,0) || ECB_C99 1281#if ECB_GCC_VERSION(3,0) || ECB_C99
956 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1282 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
957#else 1283#else
958 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1284 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
959#endif 1285#endif
960 1286
961#if __cplusplus 1287#if ECB_CPP
962 template<typename T> 1288 template<typename T>
963 static inline T ecb_div_rd (T val, T div) 1289 static inline T ecb_div_rd (T val, T div)
964 { 1290 {
965 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1291 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
966 } 1292 }
… …
983 } 1309 }
984#else 1310#else
985 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1311 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
986#endif 1312#endif
987 1313
1314ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1315ecb_function_ ecb_const uint32_t
1316ecb_binary16_to_binary32 (uint32_t x)
1317{
1318 unsigned int s = (x & 0x8000) << (31 - 15);
1319 int e = (x >> 10) & 0x001f;
1320 unsigned int m = x & 0x03ff;
1321
1322 if (ecb_expect_false (e == 31))
1323 /* infinity or NaN */
1324 e = 255 - (127 - 15);
1325 else if (ecb_expect_false (!e))
1326 {
1327 if (ecb_expect_true (!m))
1328 /* zero, handled by code below by forcing e to 0 */
1329 e = 0 - (127 - 15);
1330 else
1331 {
1332 /* subnormal, renormalise */
1333 unsigned int s = 10 - ecb_ld32 (m);
1334
1335 m = (m << s) & 0x3ff; /* mask implicit bit */
1336 e -= s - 1;
1337 }
1338 }
1339
1340 /* e and m now are normalised, or zero, (or inf or nan) */
1341 e += 127 - 15;
1342
1343 return s | (e << 23) | (m << (23 - 10));
1344}
1345
1346ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1347ecb_function_ ecb_const uint16_t
1348ecb_binary32_to_binary16 (uint32_t x)
1349{
1350 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1351 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1352 unsigned int m = x & 0x007fffff;
1353
1354 x &= 0x7fffffff;
1355
1356 /* if it's within range of binary16 normals, use fast path */
1357 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1358 {
1359 /* mantissa round-to-even */
1360 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1361
1362 /* handle overflow */
1363 if (ecb_expect_false (m >= 0x00800000))
1364 {
1365 m >>= 1;
1366 e += 1;
1367 }
1368
1369 return s | (e << 10) | (m >> (23 - 10));
1370 }
1371
1372 /* handle large numbers and infinity */
1373 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1374 return s | 0x7c00;
1375
1376 /* handle zero, subnormals and small numbers */
1377 if (ecb_expect_true (x < 0x38800000))
1378 {
1379 /* zero */
1380 if (ecb_expect_true (!x))
1381 return s;
1382
1383 /* handle subnormals */
1384
1385 /* too small, will be zero */
1386 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1387 return s;
1388
1389 m |= 0x00800000; /* make implicit bit explicit */
1390
1391 /* very tricky - we need to round to the nearest e (+10) bit value */
1392 {
1393 unsigned int bits = 14 - e;
1394 unsigned int half = (1 << (bits - 1)) - 1;
1395 unsigned int even = (m >> bits) & 1;
1396
1397 /* if this overflows, we will end up with a normalised number */
1398 m = (m + half + even) >> bits;
1399 }
1400
1401 return s | m;
1402 }
1403
1404 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1405 m >>= 13;
1406
1407 return s | 0x7c00 | m | !m;
1408}
1409
1410/*******************************************************************************/
1411/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1412
1413/* basically, everything uses "ieee pure-endian" floating point numbers */
1414/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1415#if 0 \
1416 || __i386 || __i386__ \
1417 || ECB_GCC_AMD64 \
1418 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1419 || defined __s390__ || defined __s390x__ \
1420 || defined __mips__ \
1421 || defined __alpha__ \
1422 || defined __hppa__ \
1423 || defined __ia64__ \
1424 || defined __m68k__ \
1425 || defined __m88k__ \
1426 || defined __sh__ \
1427 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1428 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1429 || defined __aarch64__
1430 #define ECB_STDFP 1
1431 #include <string.h> /* for memcpy */
1432#else
1433 #define ECB_STDFP 0
1434#endif
1435
1436#ifndef ECB_NO_LIBM
1437
1438 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1439
1440 /* only the oldest of old doesn't have this one. solaris. */
1441 #ifdef INFINITY
1442 #define ECB_INFINITY INFINITY
1443 #else
1444 #define ECB_INFINITY HUGE_VAL
1445 #endif
1446
1447 #ifdef NAN
1448 #define ECB_NAN NAN
1449 #else
1450 #define ECB_NAN ECB_INFINITY
1451 #endif
1452
1453 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1454 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1455 #define ecb_frexpf(x,e) frexpf ((x), (e))
1456 #else
1457 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1458 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1459 #endif
1460
1461 /* convert a float to ieee single/binary32 */
1462 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1463 ecb_function_ ecb_const uint32_t
1464 ecb_float_to_binary32 (float x)
1465 {
1466 uint32_t r;
1467
1468 #if ECB_STDFP
1469 memcpy (&r, &x, 4);
1470 #else
1471 /* slow emulation, works for anything but -0 */
1472 uint32_t m;
1473 int e;
1474
1475 if (x == 0e0f ) return 0x00000000U;
1476 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1477 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1478 if (x != x ) return 0x7fbfffffU;
1479
1480 m = ecb_frexpf (x, &e) * 0x1000000U;
1481
1482 r = m & 0x80000000U;
1483
1484 if (r)
1485 m = -m;
1486
1487 if (e <= -126)
1488 {
1489 m &= 0xffffffU;
1490 m >>= (-125 - e);
1491 e = -126;
1492 }
1493
1494 r |= (e + 126) << 23;
1495 r |= m & 0x7fffffU;
1496 #endif
1497
1498 return r;
1499 }
1500
1501 /* converts an ieee single/binary32 to a float */
1502 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1503 ecb_function_ ecb_const float
1504 ecb_binary32_to_float (uint32_t x)
1505 {
1506 float r;
1507
1508 #if ECB_STDFP
1509 memcpy (&r, &x, 4);
1510 #else
1511 /* emulation, only works for normals and subnormals and +0 */
1512 int neg = x >> 31;
1513 int e = (x >> 23) & 0xffU;
1514
1515 x &= 0x7fffffU;
1516
1517 if (e)
1518 x |= 0x800000U;
1519 else
1520 e = 1;
1521
1522 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1523 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1524
1525 r = neg ? -r : r;
1526 #endif
1527
1528 return r;
1529 }
1530
1531 /* convert a double to ieee double/binary64 */
1532 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1533 ecb_function_ ecb_const uint64_t
1534 ecb_double_to_binary64 (double x)
1535 {
1536 uint64_t r;
1537
1538 #if ECB_STDFP
1539 memcpy (&r, &x, 8);
1540 #else
1541 /* slow emulation, works for anything but -0 */
1542 uint64_t m;
1543 int e;
1544
1545 if (x == 0e0 ) return 0x0000000000000000U;
1546 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1547 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1548 if (x != x ) return 0X7ff7ffffffffffffU;
1549
1550 m = frexp (x, &e) * 0x20000000000000U;
1551
1552 r = m & 0x8000000000000000;;
1553
1554 if (r)
1555 m = -m;
1556
1557 if (e <= -1022)
1558 {
1559 m &= 0x1fffffffffffffU;
1560 m >>= (-1021 - e);
1561 e = -1022;
1562 }
1563
1564 r |= ((uint64_t)(e + 1022)) << 52;
1565 r |= m & 0xfffffffffffffU;
1566 #endif
1567
1568 return r;
1569 }
1570
1571 /* converts an ieee double/binary64 to a double */
1572 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1573 ecb_function_ ecb_const double
1574 ecb_binary64_to_double (uint64_t x)
1575 {
1576 double r;
1577
1578 #if ECB_STDFP
1579 memcpy (&r, &x, 8);
1580 #else
1581 /* emulation, only works for normals and subnormals and +0 */
1582 int neg = x >> 63;
1583 int e = (x >> 52) & 0x7ffU;
1584
1585 x &= 0xfffffffffffffU;
1586
1587 if (e)
1588 x |= 0x10000000000000U;
1589 else
1590 e = 1;
1591
1592 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1593 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1594
1595 r = neg ? -r : r;
1596 #endif
1597
1598 return r;
1599 }
1600
1601 /* convert a float to ieee half/binary16 */
1602 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1603 ecb_function_ ecb_const uint16_t
1604 ecb_float_to_binary16 (float x)
1605 {
1606 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1607 }
1608
1609 /* convert an ieee half/binary16 to float */
1610 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1611 ecb_function_ ecb_const float
1612 ecb_binary16_to_float (uint16_t x)
1613 {
1614 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1615 }
1616
1617#endif
1618
988#endif 1619#endif
989 1620
990/* ECB.H END */ 1621/* ECB.H END */
991 1622
992#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1623#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
993/* if your architecture doesn't need memory fences, e.g. because it is 1624/* if your architecture doesn't need memory fences, e.g. because it is
994 * single-cpu/core, or if you use libev in a project that doesn't use libev 1625 * single-cpu/core, or if you use libev in a project that doesn't use libev
995 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1626 * from multiple threads, then you can define ECB_NO_THREADS when compiling
996 * libev, in which cases the memory fences become nops. 1627 * libev, in which cases the memory fences become nops.
997 * alternatively, you can remove this #error and link against libpthread, 1628 * alternatively, you can remove this #error and link against libpthread,
998 * which will then provide the memory fences. 1629 * which will then provide the memory fences.
999 */ 1630 */
1000# error "memory fences not defined for your architecture, please report" 1631# error "memory fences not defined for your architecture, please report"
… …
1004# define ECB_MEMORY_FENCE do { } while (0) 1635# define ECB_MEMORY_FENCE do { } while (0)
1005# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1636# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1006# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1637# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1007#endif 1638#endif
1008 1639
1009#define expect_false(cond) ecb_expect_false (cond)
1010#define expect_true(cond) ecb_expect_true (cond)
1011#define noinline ecb_noinline
1012
1013#define inline_size ecb_inline 1640#define inline_size ecb_inline
1014 1641
1015#if EV_FEATURE_CODE 1642#if EV_FEATURE_CODE
1016# define inline_speed ecb_inline 1643# define inline_speed ecb_inline
1017#else 1644#else
1018# define inline_speed static noinline 1645# define inline_speed ecb_noinline static
1019#endif 1646#endif
1020 1647
1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1648#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1022 1649
1023#if EV_MINPRI == EV_MAXPRI 1650#if EV_MINPRI == EV_MAXPRI
1024# define ABSPRI(w) (((W)w), 0) 1651# define ABSPRI(w) (((W)w), 0)
1025#else 1652#else
1026# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1653# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1027#endif 1654#endif
1028 1655
1029#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1656#define EMPTY /* required for microsofts broken pseudo-c compiler */
1030#define EMPTY2(a,b) /* used to suppress some warnings */
1031 1657
1032typedef ev_watcher *W; 1658typedef ev_watcher *W;
1033typedef ev_watcher_list *WL; 1659typedef ev_watcher_list *WL;
1034typedef ev_watcher_time *WT; 1660typedef ev_watcher_time *WT;
1035 1661
… …
1060# include "ev_win32.c" 1686# include "ev_win32.c"
1061#endif 1687#endif
1062 1688
1063/*****************************************************************************/ 1689/*****************************************************************************/
1064 1690
1691#if EV_USE_LINUXAIO
1692# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1693#endif
1694
1065/* define a suitable floor function (only used by periodics atm) */ 1695/* define a suitable floor function (only used by periodics atm) */
1066 1696
1067#if EV_USE_FLOOR 1697#if EV_USE_FLOOR
1068# include <math.h> 1698# include <math.h>
1069# define ev_floor(v) floor (v) 1699# define ev_floor(v) floor (v)
1070#else 1700#else
1071 1701
1072#include <float.h> 1702#include <float.h>
1073 1703
1074/* a floor() replacement function, should be independent of ev_tstamp type */ 1704/* a floor() replacement function, should be independent of ev_tstamp type */
1705ecb_noinline
1075static ev_tstamp noinline 1706static ev_tstamp
1076ev_floor (ev_tstamp v) 1707ev_floor (ev_tstamp v)
1077{ 1708{
1078 /* the choice of shift factor is not terribly important */ 1709 /* the choice of shift factor is not terribly important */
1079#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1710#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1080 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1711 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1081#else 1712#else
1082 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1713 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1083#endif 1714#endif
1084 1715
1085 /* argument too large for an unsigned long? */ 1716 /* argument too large for an unsigned long? */
1086 if (expect_false (v >= shift)) 1717 if (ecb_expect_false (v >= shift))
1087 { 1718 {
1088 ev_tstamp f; 1719 ev_tstamp f;
1089 1720
1090 if (v == v - 1.) 1721 if (v == v - 1.)
1091 return v; /* very large number */ 1722 return v; /* very large number */
… …
1093 f = shift * ev_floor (v * (1. / shift)); 1724 f = shift * ev_floor (v * (1. / shift));
1094 return f + ev_floor (v - f); 1725 return f + ev_floor (v - f);
1095 } 1726 }
1096 1727
1097 /* special treatment for negative args? */ 1728 /* special treatment for negative args? */
1098 if (expect_false (v < 0.)) 1729 if (ecb_expect_false (v < 0.))
1099 { 1730 {
1100 ev_tstamp f = -ev_floor (-v); 1731 ev_tstamp f = -ev_floor (-v);
1101 1732
1102 return f - (f == v ? 0 : 1); 1733 return f - (f == v ? 0 : 1);
1103 } 1734 }
… …
1112 1743
1113#ifdef __linux 1744#ifdef __linux
1114# include <sys/utsname.h> 1745# include <sys/utsname.h>
1115#endif 1746#endif
1116 1747
1117static unsigned int noinline ecb_cold 1748ecb_noinline ecb_cold
1749static unsigned int
1118ev_linux_version (void) 1750ev_linux_version (void)
1119{ 1751{
1120#ifdef __linux 1752#ifdef __linux
1121 unsigned int v = 0; 1753 unsigned int v = 0;
1122 struct utsname buf; 1754 struct utsname buf;
… …
1151} 1783}
1152 1784
1153/*****************************************************************************/ 1785/*****************************************************************************/
1154 1786
1155#if EV_AVOID_STDIO 1787#if EV_AVOID_STDIO
1156static void noinline ecb_cold 1788ecb_noinline ecb_cold
1789static void
1157ev_printerr (const char *msg) 1790ev_printerr (const char *msg)
1158{ 1791{
1159 write (STDERR_FILENO, msg, strlen (msg)); 1792 write (STDERR_FILENO, msg, strlen (msg));
1160} 1793}
1161#endif 1794#endif
1162 1795
1163static void (*syserr_cb)(const char *msg) EV_THROW; 1796static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1164 1797
1165void ecb_cold 1798ecb_cold
1799void
1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1800ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1167{ 1801{
1168 syserr_cb = cb; 1802 syserr_cb = cb;
1169} 1803}
1170 1804
1171static void noinline ecb_cold 1805ecb_noinline ecb_cold
1806static void
1172ev_syserr (const char *msg) 1807ev_syserr (const char *msg)
1173{ 1808{
1174 if (!msg) 1809 if (!msg)
1175 msg = "(libev) system error"; 1810 msg = "(libev) system error";
1176 1811
… …
1189 abort (); 1824 abort ();
1190 } 1825 }
1191} 1826}
1192 1827
1193static void * 1828static void *
1194ev_realloc_emul (void *ptr, long size) EV_THROW 1829ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1195{ 1830{
1196#if __GLIBC__
1197 return realloc (ptr, size);
1198#else
1199 /* some systems, notably openbsd and darwin, fail to properly 1831 /* some systems, notably openbsd and darwin, fail to properly
1200 * implement realloc (x, 0) (as required by both ansi c-89 and 1832 * implement realloc (x, 0) (as required by both ansi c-89 and
1201 * the single unix specification, so work around them here. 1833 * the single unix specification, so work around them here.
1834 * recently, also (at least) fedora and debian started breaking it,
1835 * despite documenting it otherwise.
1202 */ 1836 */
1203 1837
1204 if (size) 1838 if (size)
1205 return realloc (ptr, size); 1839 return realloc (ptr, size);
1206 1840
1207 free (ptr); 1841 free (ptr);
1208 return 0; 1842 return 0;
1209#endif
1210} 1843}
1211 1844
1212static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1845static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1213 1846
1214void ecb_cold 1847ecb_cold
1848void
1215ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1849ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1216{ 1850{
1217 alloc = cb; 1851 alloc = cb;
1218} 1852}
1219 1853
1220inline_speed void * 1854inline_speed void *
… …
1247typedef struct 1881typedef struct
1248{ 1882{
1249 WL head; 1883 WL head;
1250 unsigned char events; /* the events watched for */ 1884 unsigned char events; /* the events watched for */
1251 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1885 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1252 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1886 unsigned char emask; /* some backends store the actual kernel mask in here */
1253 unsigned char unused; 1887 unsigned char unused;
1254#if EV_USE_EPOLL 1888#if EV_USE_EPOLL
1255 unsigned int egen; /* generation counter to counter epoll bugs */ 1889 unsigned int egen; /* generation counter to counter epoll bugs */
1256#endif 1890#endif
1257#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1891#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1322 static int ev_default_loop_ptr; 1956 static int ev_default_loop_ptr;
1323 1957
1324#endif 1958#endif
1325 1959
1326#if EV_FEATURE_API 1960#if EV_FEATURE_API
1327# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1961# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1328# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1962# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1329# define EV_INVOKE_PENDING invoke_cb (EV_A) 1963# define EV_INVOKE_PENDING invoke_cb (EV_A)
1330#else 1964#else
1331# define EV_RELEASE_CB (void)0 1965# define EV_RELEASE_CB (void)0
1332# define EV_ACQUIRE_CB (void)0 1966# define EV_ACQUIRE_CB (void)0
1333# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1967# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1337 1971
1338/*****************************************************************************/ 1972/*****************************************************************************/
1339 1973
1340#ifndef EV_HAVE_EV_TIME 1974#ifndef EV_HAVE_EV_TIME
1341ev_tstamp 1975ev_tstamp
1342ev_time (void) EV_THROW 1976ev_time (void) EV_NOEXCEPT
1343{ 1977{
1344#if EV_USE_REALTIME 1978#if EV_USE_REALTIME
1345 if (expect_true (have_realtime)) 1979 if (ecb_expect_true (have_realtime))
1346 { 1980 {
1347 struct timespec ts; 1981 struct timespec ts;
1348 clock_gettime (CLOCK_REALTIME, &ts); 1982 clock_gettime (CLOCK_REALTIME, &ts);
1349 return ts.tv_sec + ts.tv_nsec * 1e-9; 1983 return ts.tv_sec + ts.tv_nsec * 1e-9;
1350 } 1984 }
… …
1358 1992
1359inline_size ev_tstamp 1993inline_size ev_tstamp
1360get_clock (void) 1994get_clock (void)
1361{ 1995{
1362#if EV_USE_MONOTONIC 1996#if EV_USE_MONOTONIC
1363 if (expect_true (have_monotonic)) 1997 if (ecb_expect_true (have_monotonic))
1364 { 1998 {
1365 struct timespec ts; 1999 struct timespec ts;
1366 clock_gettime (CLOCK_MONOTONIC, &ts); 2000 clock_gettime (CLOCK_MONOTONIC, &ts);
1367 return ts.tv_sec + ts.tv_nsec * 1e-9; 2001 return ts.tv_sec + ts.tv_nsec * 1e-9;
1368 } 2002 }
… …
1371 return ev_time (); 2005 return ev_time ();
1372} 2006}
1373 2007
1374#if EV_MULTIPLICITY 2008#if EV_MULTIPLICITY
1375ev_tstamp 2009ev_tstamp
1376ev_now (EV_P) EV_THROW 2010ev_now (EV_P) EV_NOEXCEPT
1377{ 2011{
1378 return ev_rt_now; 2012 return ev_rt_now;
1379} 2013}
1380#endif 2014#endif
1381 2015
1382void 2016void
1383ev_sleep (ev_tstamp delay) EV_THROW 2017ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1384{ 2018{
1385 if (delay > 0.) 2019 if (delay > 0.)
1386 { 2020 {
1387#if EV_USE_NANOSLEEP 2021#if EV_USE_NANOSLEEP
1388 struct timespec ts; 2022 struct timespec ts;
1389 2023
1390 EV_TS_SET (ts, delay); 2024 EV_TS_SET (ts, delay);
1391 nanosleep (&ts, 0); 2025 nanosleep (&ts, 0);
1392#elif defined _WIN32 2026#elif defined _WIN32
2027 /* maybe this should round up, as ms is very low resolution */
2028 /* compared to select (µs) or nanosleep (ns) */
1393 Sleep ((unsigned long)(delay * 1e3)); 2029 Sleep ((unsigned long)(delay * 1e3));
1394#else 2030#else
1395 struct timeval tv; 2031 struct timeval tv;
1396 2032
1397 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2033 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1428 } 2064 }
1429 2065
1430 return ncur; 2066 return ncur;
1431} 2067}
1432 2068
1433static void * noinline ecb_cold 2069ecb_noinline ecb_cold
2070static void *
1434array_realloc (int elem, void *base, int *cur, int cnt) 2071array_realloc (int elem, void *base, int *cur, int cnt)
1435{ 2072{
1436 *cur = array_nextsize (elem, *cur, cnt); 2073 *cur = array_nextsize (elem, *cur, cnt);
1437 return ev_realloc (base, elem * *cur); 2074 return ev_realloc (base, elem * *cur);
1438} 2075}
1439 2076
2077#define array_needsize_noinit(base,offset,count)
2078
1440#define array_init_zero(base,count) \ 2079#define array_needsize_zerofill(base,offset,count) \
1441 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2080 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1442 2081
1443#define array_needsize(type,base,cur,cnt,init) \ 2082#define array_needsize(type,base,cur,cnt,init) \
1444 if (expect_false ((cnt) > (cur))) \ 2083 if (ecb_expect_false ((cnt) > (cur))) \
1445 { \ 2084 { \
1446 int ecb_unused ocur_ = (cur); \ 2085 ecb_unused int ocur_ = (cur); \
1447 (base) = (type *)array_realloc \ 2086 (base) = (type *)array_realloc \
1448 (sizeof (type), (base), &(cur), (cnt)); \ 2087 (sizeof (type), (base), &(cur), (cnt)); \
1449 init ((base) + (ocur_), (cur) - ocur_); \ 2088 init ((base), ocur_, ((cur) - ocur_)); \
1450 } 2089 }
1451 2090
1452#if 0 2091#if 0
1453#define array_slim(type,stem) \ 2092#define array_slim(type,stem) \
1454 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2093 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1463 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2102 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1464 2103
1465/*****************************************************************************/ 2104/*****************************************************************************/
1466 2105
1467/* dummy callback for pending events */ 2106/* dummy callback for pending events */
1468static void noinline 2107ecb_noinline
2108static void
1469pendingcb (EV_P_ ev_prepare *w, int revents) 2109pendingcb (EV_P_ ev_prepare *w, int revents)
1470{ 2110{
1471} 2111}
1472 2112
1473void noinline 2113ecb_noinline
2114void
1474ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2115ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1475{ 2116{
1476 W w_ = (W)w; 2117 W w_ = (W)w;
1477 int pri = ABSPRI (w_); 2118 int pri = ABSPRI (w_);
1478 2119
1479 if (expect_false (w_->pending)) 2120 if (ecb_expect_false (w_->pending))
1480 pendings [pri][w_->pending - 1].events |= revents; 2121 pendings [pri][w_->pending - 1].events |= revents;
1481 else 2122 else
1482 { 2123 {
1483 w_->pending = ++pendingcnt [pri]; 2124 w_->pending = ++pendingcnt [pri];
1484 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2125 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1485 pendings [pri][w_->pending - 1].w = w_; 2126 pendings [pri][w_->pending - 1].w = w_;
1486 pendings [pri][w_->pending - 1].events = revents; 2127 pendings [pri][w_->pending - 1].events = revents;
1487 } 2128 }
1488 2129
1489 pendingpri = NUMPRI - 1; 2130 pendingpri = NUMPRI - 1;
1490} 2131}
1491 2132
1492inline_speed void 2133inline_speed void
1493feed_reverse (EV_P_ W w) 2134feed_reverse (EV_P_ W w)
1494{ 2135{
1495 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2136 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1496 rfeeds [rfeedcnt++] = w; 2137 rfeeds [rfeedcnt++] = w;
1497} 2138}
1498 2139
1499inline_size void 2140inline_size void
1500feed_reverse_done (EV_P_ int revents) 2141feed_reverse_done (EV_P_ int revents)
… …
1535inline_speed void 2176inline_speed void
1536fd_event (EV_P_ int fd, int revents) 2177fd_event (EV_P_ int fd, int revents)
1537{ 2178{
1538 ANFD *anfd = anfds + fd; 2179 ANFD *anfd = anfds + fd;
1539 2180
1540 if (expect_true (!anfd->reify)) 2181 if (ecb_expect_true (!anfd->reify))
1541 fd_event_nocheck (EV_A_ fd, revents); 2182 fd_event_nocheck (EV_A_ fd, revents);
1542} 2183}
1543 2184
1544void 2185void
1545ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2186ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1546{ 2187{
1547 if (fd >= 0 && fd < anfdmax) 2188 if (fd >= 0 && fd < anfdmax)
1548 fd_event_nocheck (EV_A_ fd, revents); 2189 fd_event_nocheck (EV_A_ fd, revents);
1549} 2190}
1550 2191
… …
1587 ev_io *w; 2228 ev_io *w;
1588 2229
1589 unsigned char o_events = anfd->events; 2230 unsigned char o_events = anfd->events;
1590 unsigned char o_reify = anfd->reify; 2231 unsigned char o_reify = anfd->reify;
1591 2232
1592 anfd->reify = 0; 2233 anfd->reify = 0;
1593 2234
1594 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2235 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1595 { 2236 {
1596 anfd->events = 0; 2237 anfd->events = 0;
1597 2238
1598 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2239 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1599 anfd->events |= (unsigned char)w->events; 2240 anfd->events |= (unsigned char)w->events;
… …
1608 2249
1609 fdchangecnt = 0; 2250 fdchangecnt = 0;
1610} 2251}
1611 2252
1612/* something about the given fd changed */ 2253/* something about the given fd changed */
1613inline_size void 2254inline_size
2255void
1614fd_change (EV_P_ int fd, int flags) 2256fd_change (EV_P_ int fd, int flags)
1615{ 2257{
1616 unsigned char reify = anfds [fd].reify; 2258 unsigned char reify = anfds [fd].reify;
1617 anfds [fd].reify |= flags; 2259 anfds [fd].reify |= flags;
1618 2260
1619 if (expect_true (!reify)) 2261 if (ecb_expect_true (!reify))
1620 { 2262 {
1621 ++fdchangecnt; 2263 ++fdchangecnt;
1622 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2264 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1623 fdchanges [fdchangecnt - 1] = fd; 2265 fdchanges [fdchangecnt - 1] = fd;
1624 } 2266 }
1625} 2267}
1626 2268
1627/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2269/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1628inline_speed void ecb_cold 2270inline_speed ecb_cold void
1629fd_kill (EV_P_ int fd) 2271fd_kill (EV_P_ int fd)
1630{ 2272{
1631 ev_io *w; 2273 ev_io *w;
1632 2274
1633 while ((w = (ev_io *)anfds [fd].head)) 2275 while ((w = (ev_io *)anfds [fd].head))
… …
1636 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2278 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1637 } 2279 }
1638} 2280}
1639 2281
1640/* check whether the given fd is actually valid, for error recovery */ 2282/* check whether the given fd is actually valid, for error recovery */
1641inline_size int ecb_cold 2283inline_size ecb_cold int
1642fd_valid (int fd) 2284fd_valid (int fd)
1643{ 2285{
1644#ifdef _WIN32 2286#ifdef _WIN32
1645 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2287 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1646#else 2288#else
1647 return fcntl (fd, F_GETFD) != -1; 2289 return fcntl (fd, F_GETFD) != -1;
1648#endif 2290#endif
1649} 2291}
1650 2292
1651/* called on EBADF to verify fds */ 2293/* called on EBADF to verify fds */
1652static void noinline ecb_cold 2294ecb_noinline ecb_cold
2295static void
1653fd_ebadf (EV_P) 2296fd_ebadf (EV_P)
1654{ 2297{
1655 int fd; 2298 int fd;
1656 2299
1657 for (fd = 0; fd < anfdmax; ++fd) 2300 for (fd = 0; fd < anfdmax; ++fd)
… …
1659 if (!fd_valid (fd) && errno == EBADF) 2302 if (!fd_valid (fd) && errno == EBADF)
1660 fd_kill (EV_A_ fd); 2303 fd_kill (EV_A_ fd);
1661} 2304}
1662 2305
1663/* called on ENOMEM in select/poll to kill some fds and retry */ 2306/* called on ENOMEM in select/poll to kill some fds and retry */
1664static void noinline ecb_cold 2307ecb_noinline ecb_cold
2308static void
1665fd_enomem (EV_P) 2309fd_enomem (EV_P)
1666{ 2310{
1667 int fd; 2311 int fd;
1668 2312
1669 for (fd = anfdmax; fd--; ) 2313 for (fd = anfdmax; fd--; )
… …
1673 break; 2317 break;
1674 } 2318 }
1675} 2319}
1676 2320
1677/* usually called after fork if backend needs to re-arm all fds from scratch */ 2321/* usually called after fork if backend needs to re-arm all fds from scratch */
1678static void noinline 2322ecb_noinline
2323static void
1679fd_rearm_all (EV_P) 2324fd_rearm_all (EV_P)
1680{ 2325{
1681 int fd; 2326 int fd;
1682 2327
1683 for (fd = 0; fd < anfdmax; ++fd) 2328 for (fd = 0; fd < anfdmax; ++fd)
… …
1736 ev_tstamp minat; 2381 ev_tstamp minat;
1737 ANHE *minpos; 2382 ANHE *minpos;
1738 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2383 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1739 2384
1740 /* find minimum child */ 2385 /* find minimum child */
1741 if (expect_true (pos + DHEAP - 1 < E)) 2386 if (ecb_expect_true (pos + DHEAP - 1 < E))
1742 { 2387 {
1743 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2388 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1744 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2389 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1745 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2390 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1746 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2391 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
… …
1864 2509
1865/*****************************************************************************/ 2510/*****************************************************************************/
1866 2511
1867#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2512#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1868 2513
1869static void noinline ecb_cold 2514ecb_noinline ecb_cold
2515static void
1870evpipe_init (EV_P) 2516evpipe_init (EV_P)
1871{ 2517{
1872 if (!ev_is_active (&pipe_w)) 2518 if (!ev_is_active (&pipe_w))
1873 { 2519 {
2520 int fds [2];
2521
1874# if EV_USE_EVENTFD 2522# if EV_USE_EVENTFD
2523 fds [0] = -1;
1875 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2524 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1876 if (evfd < 0 && errno == EINVAL) 2525 if (fds [1] < 0 && errno == EINVAL)
1877 evfd = eventfd (0, 0); 2526 fds [1] = eventfd (0, 0);
1878 2527
1879 if (evfd >= 0) 2528 if (fds [1] < 0)
1880 {
1881 evpipe [0] = -1;
1882 fd_intern (evfd); /* doing it twice doesn't hurt */
1883 ev_io_set (&pipe_w, evfd, EV_READ);
1884 }
1885 else
1886# endif 2529# endif
1887 { 2530 {
1888 while (pipe (evpipe)) 2531 while (pipe (fds))
1889 ev_syserr ("(libev) error creating signal/async pipe"); 2532 ev_syserr ("(libev) error creating signal/async pipe");
1890 2533
1891 fd_intern (evpipe [0]); 2534 fd_intern (fds [0]);
1892 fd_intern (evpipe [1]);
1893 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1894 } 2535 }
1895 2536
2537 evpipe [0] = fds [0];
2538
2539 if (evpipe [1] < 0)
2540 evpipe [1] = fds [1]; /* first call, set write fd */
2541 else
2542 {
2543 /* on subsequent calls, do not change evpipe [1] */
2544 /* so that evpipe_write can always rely on its value. */
2545 /* this branch does not do anything sensible on windows, */
2546 /* so must not be executed on windows */
2547
2548 dup2 (fds [1], evpipe [1]);
2549 close (fds [1]);
2550 }
2551
2552 fd_intern (evpipe [1]);
2553
2554 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1896 ev_io_start (EV_A_ &pipe_w); 2555 ev_io_start (EV_A_ &pipe_w);
1897 ev_unref (EV_A); /* watcher should not keep loop alive */ 2556 ev_unref (EV_A); /* watcher should not keep loop alive */
1898 } 2557 }
1899} 2558}
1900 2559
1901inline_speed void 2560inline_speed void
1902evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2561evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1903{ 2562{
1904 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2563 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1905 2564
1906 if (expect_true (*flag)) 2565 if (ecb_expect_true (*flag))
1907 return; 2566 return;
1908 2567
1909 *flag = 1; 2568 *flag = 1;
1910 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2569 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1911 2570
… …
1921 ECB_MEMORY_FENCE_RELEASE; 2580 ECB_MEMORY_FENCE_RELEASE;
1922 2581
1923 old_errno = errno; /* save errno because write will clobber it */ 2582 old_errno = errno; /* save errno because write will clobber it */
1924 2583
1925#if EV_USE_EVENTFD 2584#if EV_USE_EVENTFD
1926 if (evfd >= 0) 2585 if (evpipe [0] < 0)
1927 { 2586 {
1928 uint64_t counter = 1; 2587 uint64_t counter = 1;
1929 write (evfd, &counter, sizeof (uint64_t)); 2588 write (evpipe [1], &counter, sizeof (uint64_t));
1930 } 2589 }
1931 else 2590 else
1932#endif 2591#endif
1933 { 2592 {
1934#ifdef _WIN32 2593#ifdef _WIN32
1935 WSABUF buf; 2594 WSABUF buf;
1936 DWORD sent; 2595 DWORD sent;
1937 buf.buf = &buf; 2596 buf.buf = (char *)&buf;
1938 buf.len = 1; 2597 buf.len = 1;
1939 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2598 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1940#else 2599#else
1941 write (evpipe [1], &(evpipe [1]), 1); 2600 write (evpipe [1], &(evpipe [1]), 1);
1942#endif 2601#endif
… …
1954 int i; 2613 int i;
1955 2614
1956 if (revents & EV_READ) 2615 if (revents & EV_READ)
1957 { 2616 {
1958#if EV_USE_EVENTFD 2617#if EV_USE_EVENTFD
1959 if (evfd >= 0) 2618 if (evpipe [0] < 0)
1960 { 2619 {
1961 uint64_t counter; 2620 uint64_t counter;
1962 read (evfd, &counter, sizeof (uint64_t)); 2621 read (evpipe [1], &counter, sizeof (uint64_t));
1963 } 2622 }
1964 else 2623 else
1965#endif 2624#endif
1966 { 2625 {
1967 char dummy[4]; 2626 char dummy[4];
… …
1988 sig_pending = 0; 2647 sig_pending = 0;
1989 2648
1990 ECB_MEMORY_FENCE; 2649 ECB_MEMORY_FENCE;
1991 2650
1992 for (i = EV_NSIG - 1; i--; ) 2651 for (i = EV_NSIG - 1; i--; )
1993 if (expect_false (signals [i].pending)) 2652 if (ecb_expect_false (signals [i].pending))
1994 ev_feed_signal_event (EV_A_ i + 1); 2653 ev_feed_signal_event (EV_A_ i + 1);
1995 } 2654 }
1996#endif 2655#endif
1997 2656
1998#if EV_ASYNC_ENABLE 2657#if EV_ASYNC_ENABLE
… …
2014} 2673}
2015 2674
2016/*****************************************************************************/ 2675/*****************************************************************************/
2017 2676
2018void 2677void
2019ev_feed_signal (int signum) EV_THROW 2678ev_feed_signal (int signum) EV_NOEXCEPT
2020{ 2679{
2021#if EV_MULTIPLICITY 2680#if EV_MULTIPLICITY
2681 EV_P;
2682 ECB_MEMORY_FENCE_ACQUIRE;
2022 EV_P = signals [signum - 1].loop; 2683 EV_A = signals [signum - 1].loop;
2023 2684
2024 if (!EV_A) 2685 if (!EV_A)
2025 return; 2686 return;
2026#endif 2687#endif
2027 2688
2028 if (!ev_active (&pipe_w))
2029 return;
2030
2031 signals [signum - 1].pending = 1; 2689 signals [signum - 1].pending = 1;
2032 evpipe_write (EV_A_ &sig_pending); 2690 evpipe_write (EV_A_ &sig_pending);
2033} 2691}
2034 2692
2035static void 2693static void
… …
2040#endif 2698#endif
2041 2699
2042 ev_feed_signal (signum); 2700 ev_feed_signal (signum);
2043} 2701}
2044 2702
2045void noinline 2703ecb_noinline
2704void
2046ev_feed_signal_event (EV_P_ int signum) EV_THROW 2705ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2047{ 2706{
2048 WL w; 2707 WL w;
2049 2708
2050 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2709 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2051 return; 2710 return;
2052 2711
2053 --signum; 2712 --signum;
2054 2713
2055#if EV_MULTIPLICITY 2714#if EV_MULTIPLICITY
2056 /* it is permissible to try to feed a signal to the wrong loop */ 2715 /* it is permissible to try to feed a signal to the wrong loop */
2057 /* or, likely more useful, feeding a signal nobody is waiting for */ 2716 /* or, likely more useful, feeding a signal nobody is waiting for */
2058 2717
2059 if (expect_false (signals [signum].loop != EV_A)) 2718 if (ecb_expect_false (signals [signum].loop != EV_A))
2060 return; 2719 return;
2061#endif 2720#endif
2062 2721
2063 signals [signum].pending = 0; 2722 signals [signum].pending = 0;
2064 ECB_MEMORY_FENCE_RELEASE; 2723 ECB_MEMORY_FENCE_RELEASE;
… …
2160# include "ev_kqueue.c" 2819# include "ev_kqueue.c"
2161#endif 2820#endif
2162#if EV_USE_EPOLL 2821#if EV_USE_EPOLL
2163# include "ev_epoll.c" 2822# include "ev_epoll.c"
2164#endif 2823#endif
2824#if EV_USE_LINUXAIO
2825# include "ev_linuxaio.c"
2826#endif
2827#if EV_USE_IOURING
2828# include "ev_iouring.c"
2829#endif
2165#if EV_USE_POLL 2830#if EV_USE_POLL
2166# include "ev_poll.c" 2831# include "ev_poll.c"
2167#endif 2832#endif
2168#if EV_USE_SELECT 2833#if EV_USE_SELECT
2169# include "ev_select.c" 2834# include "ev_select.c"
2170#endif 2835#endif
2171 2836
2172int ecb_cold 2837ecb_cold int
2173ev_version_major (void) EV_THROW 2838ev_version_major (void) EV_NOEXCEPT
2174{ 2839{
2175 return EV_VERSION_MAJOR; 2840 return EV_VERSION_MAJOR;
2176} 2841}
2177 2842
2178int ecb_cold 2843ecb_cold int
2179ev_version_minor (void) EV_THROW 2844ev_version_minor (void) EV_NOEXCEPT
2180{ 2845{
2181 return EV_VERSION_MINOR; 2846 return EV_VERSION_MINOR;
2182} 2847}
2183 2848
2184/* return true if we are running with elevated privileges and should ignore env variables */ 2849/* return true if we are running with elevated privileges and should ignore env variables */
2185int inline_size ecb_cold 2850inline_size ecb_cold int
2186enable_secure (void) 2851enable_secure (void)
2187{ 2852{
2188#ifdef _WIN32 2853#ifdef _WIN32
2189 return 0; 2854 return 0;
2190#else 2855#else
2191 return getuid () != geteuid () 2856 return getuid () != geteuid ()
2192 || getgid () != getegid (); 2857 || getgid () != getegid ();
2193#endif 2858#endif
2194} 2859}
2195 2860
2196unsigned int ecb_cold 2861ecb_cold
2862unsigned int
2197ev_supported_backends (void) EV_THROW 2863ev_supported_backends (void) EV_NOEXCEPT
2198{ 2864{
2199 unsigned int flags = 0; 2865 unsigned int flags = 0;
2200 2866
2201 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2867 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2202 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2868 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2203 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2869 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2870 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2871 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2204 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2872 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2205 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2873 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2206 2874
2207 return flags; 2875 return flags;
2208} 2876}
2209 2877
2210unsigned int ecb_cold 2878ecb_cold
2879unsigned int
2211ev_recommended_backends (void) EV_THROW 2880ev_recommended_backends (void) EV_NOEXCEPT
2212{ 2881{
2213 unsigned int flags = ev_supported_backends (); 2882 unsigned int flags = ev_supported_backends ();
2214 2883
2215#ifndef __NetBSD__ 2884#ifndef __NetBSD__
2216 /* kqueue is borked on everything but netbsd apparently */ 2885 /* kqueue is borked on everything but netbsd apparently */
… …
2224#endif 2893#endif
2225#ifdef __FreeBSD__ 2894#ifdef __FreeBSD__
2226 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2895 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2227#endif 2896#endif
2228 2897
2898 /* TODO: linuxaio is very experimental */
2899#if !EV_RECOMMEND_LINUXAIO
2900 flags &= ~EVBACKEND_LINUXAIO;
2901#endif
2902 /* TODO: linuxaio is super experimental */
2903#if !EV_RECOMMEND_IOURING
2904 flags &= ~EVBACKEND_IOURING;
2905#endif
2906
2229 return flags; 2907 return flags;
2230} 2908}
2231 2909
2232unsigned int ecb_cold 2910ecb_cold
2911unsigned int
2233ev_embeddable_backends (void) EV_THROW 2912ev_embeddable_backends (void) EV_NOEXCEPT
2234{ 2913{
2235 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2914 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2236 2915
2237 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2916 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2238 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2917 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2240 2919
2241 return flags; 2920 return flags;
2242} 2921}
2243 2922
2244unsigned int 2923unsigned int
2245ev_backend (EV_P) EV_THROW 2924ev_backend (EV_P) EV_NOEXCEPT
2246{ 2925{
2247 return backend; 2926 return backend;
2248} 2927}
2249 2928
2250#if EV_FEATURE_API 2929#if EV_FEATURE_API
2251unsigned int 2930unsigned int
2252ev_iteration (EV_P) EV_THROW 2931ev_iteration (EV_P) EV_NOEXCEPT
2253{ 2932{
2254 return loop_count; 2933 return loop_count;
2255} 2934}
2256 2935
2257unsigned int 2936unsigned int
2258ev_depth (EV_P) EV_THROW 2937ev_depth (EV_P) EV_NOEXCEPT
2259{ 2938{
2260 return loop_depth; 2939 return loop_depth;
2261} 2940}
2262 2941
2263void 2942void
2264ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2943ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2265{ 2944{
2266 io_blocktime = interval; 2945 io_blocktime = interval;
2267} 2946}
2268 2947
2269void 2948void
2270ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2949ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2271{ 2950{
2272 timeout_blocktime = interval; 2951 timeout_blocktime = interval;
2273} 2952}
2274 2953
2275void 2954void
2276ev_set_userdata (EV_P_ void *data) EV_THROW 2955ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2277{ 2956{
2278 userdata = data; 2957 userdata = data;
2279} 2958}
2280 2959
2281void * 2960void *
2282ev_userdata (EV_P) EV_THROW 2961ev_userdata (EV_P) EV_NOEXCEPT
2283{ 2962{
2284 return userdata; 2963 return userdata;
2285} 2964}
2286 2965
2287void 2966void
2288ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2967ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2289{ 2968{
2290 invoke_cb = invoke_pending_cb; 2969 invoke_cb = invoke_pending_cb;
2291} 2970}
2292 2971
2293void 2972void
2294ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2973ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2295{ 2974{
2296 release_cb = release; 2975 release_cb = release;
2297 acquire_cb = acquire; 2976 acquire_cb = acquire;
2298} 2977}
2299#endif 2978#endif
2300 2979
2301/* initialise a loop structure, must be zero-initialised */ 2980/* initialise a loop structure, must be zero-initialised */
2302static void noinline ecb_cold 2981ecb_noinline ecb_cold
2982static void
2303loop_init (EV_P_ unsigned int flags) EV_THROW 2983loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2304{ 2984{
2305 if (!backend) 2985 if (!backend)
2306 { 2986 {
2307 origflags = flags; 2987 origflags = flags;
2308 2988
… …
2353#if EV_ASYNC_ENABLE 3033#if EV_ASYNC_ENABLE
2354 async_pending = 0; 3034 async_pending = 0;
2355#endif 3035#endif
2356 pipe_write_skipped = 0; 3036 pipe_write_skipped = 0;
2357 pipe_write_wanted = 0; 3037 pipe_write_wanted = 0;
3038 evpipe [0] = -1;
3039 evpipe [1] = -1;
2358#if EV_USE_INOTIFY 3040#if EV_USE_INOTIFY
2359 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3041 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2360#endif 3042#endif
2361#if EV_USE_SIGNALFD 3043#if EV_USE_SIGNALFD
2362 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3044 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2364 3046
2365 if (!(flags & EVBACKEND_MASK)) 3047 if (!(flags & EVBACKEND_MASK))
2366 flags |= ev_recommended_backends (); 3048 flags |= ev_recommended_backends ();
2367 3049
2368#if EV_USE_IOCP 3050#if EV_USE_IOCP
2369 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3051 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2370#endif 3052#endif
2371#if EV_USE_PORT 3053#if EV_USE_PORT
2372 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3054 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2373#endif 3055#endif
2374#if EV_USE_KQUEUE 3056#if EV_USE_KQUEUE
2375 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3057 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3058#endif
3059#if EV_USE_IOURING
3060 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3061#endif
3062#if EV_USE_LINUXAIO
3063 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2376#endif 3064#endif
2377#if EV_USE_EPOLL 3065#if EV_USE_EPOLL
2378 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3066 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2379#endif 3067#endif
2380#if EV_USE_POLL 3068#if EV_USE_POLL
2381 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3069 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2382#endif 3070#endif
2383#if EV_USE_SELECT 3071#if EV_USE_SELECT
2384 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3072 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2385#endif 3073#endif
2386 3074
2387 ev_prepare_init (&pending_w, pendingcb); 3075 ev_prepare_init (&pending_w, pendingcb);
2388 3076
2389#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3077#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2392#endif 3080#endif
2393 } 3081 }
2394} 3082}
2395 3083
2396/* free up a loop structure */ 3084/* free up a loop structure */
2397void ecb_cold 3085ecb_cold
3086void
2398ev_loop_destroy (EV_P) 3087ev_loop_destroy (EV_P)
2399{ 3088{
2400 int i; 3089 int i;
2401 3090
2402#if EV_MULTIPLICITY 3091#if EV_MULTIPLICITY
… …
2405 return; 3094 return;
2406#endif 3095#endif
2407 3096
2408#if EV_CLEANUP_ENABLE 3097#if EV_CLEANUP_ENABLE
2409 /* queue cleanup watchers (and execute them) */ 3098 /* queue cleanup watchers (and execute them) */
2410 if (expect_false (cleanupcnt)) 3099 if (ecb_expect_false (cleanupcnt))
2411 { 3100 {
2412 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3101 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2413 EV_INVOKE_PENDING; 3102 EV_INVOKE_PENDING;
2414 } 3103 }
2415#endif 3104#endif
… …
2425 if (ev_is_active (&pipe_w)) 3114 if (ev_is_active (&pipe_w))
2426 { 3115 {
2427 /*ev_ref (EV_A);*/ 3116 /*ev_ref (EV_A);*/
2428 /*ev_io_stop (EV_A_ &pipe_w);*/ 3117 /*ev_io_stop (EV_A_ &pipe_w);*/
2429 3118
2430#if EV_USE_EVENTFD
2431 if (evfd >= 0)
2432 close (evfd);
2433#endif
2434
2435 if (evpipe [0] >= 0)
2436 {
2437 EV_WIN32_CLOSE_FD (evpipe [0]); 3119 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2438 EV_WIN32_CLOSE_FD (evpipe [1]); 3120 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2439 }
2440 } 3121 }
2441 3122
2442#if EV_USE_SIGNALFD 3123#if EV_USE_SIGNALFD
2443 if (ev_is_active (&sigfd_w)) 3124 if (ev_is_active (&sigfd_w))
2444 close (sigfd); 3125 close (sigfd);
… …
2451 3132
2452 if (backend_fd >= 0) 3133 if (backend_fd >= 0)
2453 close (backend_fd); 3134 close (backend_fd);
2454 3135
2455#if EV_USE_IOCP 3136#if EV_USE_IOCP
2456 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3137 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2457#endif 3138#endif
2458#if EV_USE_PORT 3139#if EV_USE_PORT
2459 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3140 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2460#endif 3141#endif
2461#if EV_USE_KQUEUE 3142#if EV_USE_KQUEUE
2462 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3143 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3144#endif
3145#if EV_USE_IOURING
3146 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3147#endif
3148#if EV_USE_LINUXAIO
3149 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2463#endif 3150#endif
2464#if EV_USE_EPOLL 3151#if EV_USE_EPOLL
2465 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3152 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2466#endif 3153#endif
2467#if EV_USE_POLL 3154#if EV_USE_POLL
2468 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3155 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2469#endif 3156#endif
2470#if EV_USE_SELECT 3157#if EV_USE_SELECT
2471 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3158 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2472#endif 3159#endif
2473 3160
2474 for (i = NUMPRI; i--; ) 3161 for (i = NUMPRI; i--; )
2475 { 3162 {
2476 array_free (pending, [i]); 3163 array_free (pending, [i]);
… …
2518 3205
2519inline_size void 3206inline_size void
2520loop_fork (EV_P) 3207loop_fork (EV_P)
2521{ 3208{
2522#if EV_USE_PORT 3209#if EV_USE_PORT
2523 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3210 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2524#endif 3211#endif
2525#if EV_USE_KQUEUE 3212#if EV_USE_KQUEUE
2526 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3213 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3214#endif
3215#if EV_USE_IOURING
3216 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3217#endif
3218#if EV_USE_LINUXAIO
3219 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2527#endif 3220#endif
2528#if EV_USE_EPOLL 3221#if EV_USE_EPOLL
2529 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3222 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2530#endif 3223#endif
2531#if EV_USE_INOTIFY 3224#if EV_USE_INOTIFY
2532 infy_fork (EV_A); 3225 infy_fork (EV_A);
2533#endif 3226#endif
2534 3227
3228#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2535 if (ev_is_active (&pipe_w)) 3229 if (ev_is_active (&pipe_w) && postfork != 2)
2536 { 3230 {
2537 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3231 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2538 3232
2539 ev_ref (EV_A); 3233 ev_ref (EV_A);
2540 ev_io_stop (EV_A_ &pipe_w); 3234 ev_io_stop (EV_A_ &pipe_w);
2541 3235
2542#if EV_USE_EVENTFD
2543 if (evfd >= 0)
2544 close (evfd);
2545#endif
2546
2547 if (evpipe [0] >= 0) 3236 if (evpipe [0] >= 0)
2548 {
2549 EV_WIN32_CLOSE_FD (evpipe [0]); 3237 EV_WIN32_CLOSE_FD (evpipe [0]);
2550 EV_WIN32_CLOSE_FD (evpipe [1]);
2551 }
2552 3238
2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2554 evpipe_init (EV_A); 3239 evpipe_init (EV_A);
2555 /* iterate over everything, in case we missed something before */ 3240 /* iterate over everything, in case we missed something before */
2556 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3241 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2557#endif
2558 } 3242 }
3243#endif
2559 3244
2560 postfork = 0; 3245 postfork = 0;
2561} 3246}
2562 3247
2563#if EV_MULTIPLICITY 3248#if EV_MULTIPLICITY
2564 3249
3250ecb_cold
2565struct ev_loop * ecb_cold 3251struct ev_loop *
2566ev_loop_new (unsigned int flags) EV_THROW 3252ev_loop_new (unsigned int flags) EV_NOEXCEPT
2567{ 3253{
2568 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3254 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2569 3255
2570 memset (EV_A, 0, sizeof (struct ev_loop)); 3256 memset (EV_A, 0, sizeof (struct ev_loop));
2571 loop_init (EV_A_ flags); 3257 loop_init (EV_A_ flags);
… …
2578} 3264}
2579 3265
2580#endif /* multiplicity */ 3266#endif /* multiplicity */
2581 3267
2582#if EV_VERIFY 3268#if EV_VERIFY
2583static void noinline ecb_cold 3269ecb_noinline ecb_cold
3270static void
2584verify_watcher (EV_P_ W w) 3271verify_watcher (EV_P_ W w)
2585{ 3272{
2586 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3273 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2587 3274
2588 if (w->pending) 3275 if (w->pending)
2589 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3276 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2590} 3277}
2591 3278
2592static void noinline ecb_cold 3279ecb_noinline ecb_cold
3280static void
2593verify_heap (EV_P_ ANHE *heap, int N) 3281verify_heap (EV_P_ ANHE *heap, int N)
2594{ 3282{
2595 int i; 3283 int i;
2596 3284
2597 for (i = HEAP0; i < N + HEAP0; ++i) 3285 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2602 3290
2603 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3291 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2604 } 3292 }
2605} 3293}
2606 3294
2607static void noinline ecb_cold 3295ecb_noinline ecb_cold
3296static void
2608array_verify (EV_P_ W *ws, int cnt) 3297array_verify (EV_P_ W *ws, int cnt)
2609{ 3298{
2610 while (cnt--) 3299 while (cnt--)
2611 { 3300 {
2612 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3301 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2615} 3304}
2616#endif 3305#endif
2617 3306
2618#if EV_FEATURE_API 3307#if EV_FEATURE_API
2619void ecb_cold 3308void ecb_cold
2620ev_verify (EV_P) EV_THROW 3309ev_verify (EV_P) EV_NOEXCEPT
2621{ 3310{
2622#if EV_VERIFY 3311#if EV_VERIFY
2623 int i; 3312 int i;
2624 WL w, w2; 3313 WL w, w2;
2625 3314
… …
2701#endif 3390#endif
2702} 3391}
2703#endif 3392#endif
2704 3393
2705#if EV_MULTIPLICITY 3394#if EV_MULTIPLICITY
3395ecb_cold
2706struct ev_loop * ecb_cold 3396struct ev_loop *
2707#else 3397#else
2708int 3398int
2709#endif 3399#endif
2710ev_default_loop (unsigned int flags) EV_THROW 3400ev_default_loop (unsigned int flags) EV_NOEXCEPT
2711{ 3401{
2712 if (!ev_default_loop_ptr) 3402 if (!ev_default_loop_ptr)
2713 { 3403 {
2714#if EV_MULTIPLICITY 3404#if EV_MULTIPLICITY
2715 EV_P = ev_default_loop_ptr = &default_loop_struct; 3405 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2734 3424
2735 return ev_default_loop_ptr; 3425 return ev_default_loop_ptr;
2736} 3426}
2737 3427
2738void 3428void
2739ev_loop_fork (EV_P) EV_THROW 3429ev_loop_fork (EV_P) EV_NOEXCEPT
2740{ 3430{
2741 postfork = 1; 3431 postfork = 1;
2742} 3432}
2743 3433
2744/*****************************************************************************/ 3434/*****************************************************************************/
… …
2748{ 3438{
2749 EV_CB_INVOKE ((W)w, revents); 3439 EV_CB_INVOKE ((W)w, revents);
2750} 3440}
2751 3441
2752unsigned int 3442unsigned int
2753ev_pending_count (EV_P) EV_THROW 3443ev_pending_count (EV_P) EV_NOEXCEPT
2754{ 3444{
2755 int pri; 3445 int pri;
2756 unsigned int count = 0; 3446 unsigned int count = 0;
2757 3447
2758 for (pri = NUMPRI; pri--; ) 3448 for (pri = NUMPRI; pri--; )
2759 count += pendingcnt [pri]; 3449 count += pendingcnt [pri];
2760 3450
2761 return count; 3451 return count;
2762} 3452}
2763 3453
2764void noinline 3454ecb_noinline
3455void
2765ev_invoke_pending (EV_P) 3456ev_invoke_pending (EV_P)
2766{ 3457{
2767 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ 3458 pendingpri = NUMPRI;
3459
3460 do
3461 {
3462 --pendingpri;
3463
3464 /* pendingpri possibly gets modified in the inner loop */
2768 while (pendingcnt [pendingpri]) 3465 while (pendingcnt [pendingpri])
2769 { 3466 {
2770 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3467 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2771 3468
2772 p->w->pending = 0; 3469 p->w->pending = 0;
2773 EV_CB_INVOKE (p->w, p->events); 3470 EV_CB_INVOKE (p->w, p->events);
2774 EV_FREQUENT_CHECK; 3471 EV_FREQUENT_CHECK;
2775 } 3472 }
3473 }
3474 while (pendingpri);
2776} 3475}
2777 3476
2778#if EV_IDLE_ENABLE 3477#if EV_IDLE_ENABLE
2779/* make idle watchers pending. this handles the "call-idle */ 3478/* make idle watchers pending. this handles the "call-idle */
2780/* only when higher priorities are idle" logic */ 3479/* only when higher priorities are idle" logic */
2781inline_size void 3480inline_size void
2782idle_reify (EV_P) 3481idle_reify (EV_P)
2783{ 3482{
2784 if (expect_false (idleall)) 3483 if (ecb_expect_false (idleall))
2785 { 3484 {
2786 int pri; 3485 int pri;
2787 3486
2788 for (pri = NUMPRI; pri--; ) 3487 for (pri = NUMPRI; pri--; )
2789 { 3488 {
… …
2838 } 3537 }
2839} 3538}
2840 3539
2841#if EV_PERIODIC_ENABLE 3540#if EV_PERIODIC_ENABLE
2842 3541
2843static void noinline 3542ecb_noinline
3543static void
2844periodic_recalc (EV_P_ ev_periodic *w) 3544periodic_recalc (EV_P_ ev_periodic *w)
2845{ 3545{
2846 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3546 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2847 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3547 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2848 3548
… …
2850 while (at <= ev_rt_now) 3550 while (at <= ev_rt_now)
2851 { 3551 {
2852 ev_tstamp nat = at + w->interval; 3552 ev_tstamp nat = at + w->interval;
2853 3553
2854 /* when resolution fails us, we use ev_rt_now */ 3554 /* when resolution fails us, we use ev_rt_now */
2855 if (expect_false (nat == at)) 3555 if (ecb_expect_false (nat == at))
2856 { 3556 {
2857 at = ev_rt_now; 3557 at = ev_rt_now;
2858 break; 3558 break;
2859 } 3559 }
2860 3560
… …
2906 } 3606 }
2907} 3607}
2908 3608
2909/* simply recalculate all periodics */ 3609/* simply recalculate all periodics */
2910/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3610/* TODO: maybe ensure that at least one event happens when jumping forward? */
2911static void noinline ecb_cold 3611ecb_noinline ecb_cold
3612static void
2912periodics_reschedule (EV_P) 3613periodics_reschedule (EV_P)
2913{ 3614{
2914 int i; 3615 int i;
2915 3616
2916 /* adjust periodics after time jump */ 3617 /* adjust periodics after time jump */
… …
2929 reheap (periodics, periodiccnt); 3630 reheap (periodics, periodiccnt);
2930} 3631}
2931#endif 3632#endif
2932 3633
2933/* adjust all timers by a given offset */ 3634/* adjust all timers by a given offset */
2934static void noinline ecb_cold 3635ecb_noinline ecb_cold
3636static void
2935timers_reschedule (EV_P_ ev_tstamp adjust) 3637timers_reschedule (EV_P_ ev_tstamp adjust)
2936{ 3638{
2937 int i; 3639 int i;
2938 3640
2939 for (i = 0; i < timercnt; ++i) 3641 for (i = 0; i < timercnt; ++i)
… …
2948/* also detect if there was a timejump, and act accordingly */ 3650/* also detect if there was a timejump, and act accordingly */
2949inline_speed void 3651inline_speed void
2950time_update (EV_P_ ev_tstamp max_block) 3652time_update (EV_P_ ev_tstamp max_block)
2951{ 3653{
2952#if EV_USE_MONOTONIC 3654#if EV_USE_MONOTONIC
2953 if (expect_true (have_monotonic)) 3655 if (ecb_expect_true (have_monotonic))
2954 { 3656 {
2955 int i; 3657 int i;
2956 ev_tstamp odiff = rtmn_diff; 3658 ev_tstamp odiff = rtmn_diff;
2957 3659
2958 mn_now = get_clock (); 3660 mn_now = get_clock ();
2959 3661
2960 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3662 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
2961 /* interpolate in the meantime */ 3663 /* interpolate in the meantime */
2962 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3664 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
2963 { 3665 {
2964 ev_rt_now = rtmn_diff + mn_now; 3666 ev_rt_now = rtmn_diff + mn_now;
2965 return; 3667 return;
2966 } 3668 }
2967 3669
… …
2981 ev_tstamp diff; 3683 ev_tstamp diff;
2982 rtmn_diff = ev_rt_now - mn_now; 3684 rtmn_diff = ev_rt_now - mn_now;
2983 3685
2984 diff = odiff - rtmn_diff; 3686 diff = odiff - rtmn_diff;
2985 3687
2986 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3688 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2987 return; /* all is well */ 3689 return; /* all is well */
2988 3690
2989 ev_rt_now = ev_time (); 3691 ev_rt_now = ev_time ();
2990 mn_now = get_clock (); 3692 mn_now = get_clock ();
2991 now_floor = mn_now; 3693 now_floor = mn_now;
… …
3000 else 3702 else
3001#endif 3703#endif
3002 { 3704 {
3003 ev_rt_now = ev_time (); 3705 ev_rt_now = ev_time ();
3004 3706
3005 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3707 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3006 { 3708 {
3007 /* adjust timers. this is easy, as the offset is the same for all of them */ 3709 /* adjust timers. this is easy, as the offset is the same for all of them */
3008 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3710 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3009#if EV_PERIODIC_ENABLE 3711#if EV_PERIODIC_ENABLE
3010 periodics_reschedule (EV_A); 3712 periodics_reschedule (EV_A);
… …
3033#if EV_VERIFY >= 2 3735#if EV_VERIFY >= 2
3034 ev_verify (EV_A); 3736 ev_verify (EV_A);
3035#endif 3737#endif
3036 3738
3037#ifndef _WIN32 3739#ifndef _WIN32
3038 if (expect_false (curpid)) /* penalise the forking check even more */ 3740 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3039 if (expect_false (getpid () != curpid)) 3741 if (ecb_expect_false (getpid () != curpid))
3040 { 3742 {
3041 curpid = getpid (); 3743 curpid = getpid ();
3042 postfork = 1; 3744 postfork = 1;
3043 } 3745 }
3044#endif 3746#endif
3045 3747
3046#if EV_FORK_ENABLE 3748#if EV_FORK_ENABLE
3047 /* we might have forked, so queue fork handlers */ 3749 /* we might have forked, so queue fork handlers */
3048 if (expect_false (postfork)) 3750 if (ecb_expect_false (postfork))
3049 if (forkcnt) 3751 if (forkcnt)
3050 { 3752 {
3051 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3753 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3052 EV_INVOKE_PENDING; 3754 EV_INVOKE_PENDING;
3053 } 3755 }
3054#endif 3756#endif
3055 3757
3056#if EV_PREPARE_ENABLE 3758#if EV_PREPARE_ENABLE
3057 /* queue prepare watchers (and execute them) */ 3759 /* queue prepare watchers (and execute them) */
3058 if (expect_false (preparecnt)) 3760 if (ecb_expect_false (preparecnt))
3059 { 3761 {
3060 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3762 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3061 EV_INVOKE_PENDING; 3763 EV_INVOKE_PENDING;
3062 } 3764 }
3063#endif 3765#endif
3064 3766
3065 if (expect_false (loop_done)) 3767 if (ecb_expect_false (loop_done))
3066 break; 3768 break;
3067 3769
3068 /* we might have forked, so reify kernel state if necessary */ 3770 /* we might have forked, so reify kernel state if necessary */
3069 if (expect_false (postfork)) 3771 if (ecb_expect_false (postfork))
3070 loop_fork (EV_A); 3772 loop_fork (EV_A);
3071 3773
3072 /* update fd-related kernel structures */ 3774 /* update fd-related kernel structures */
3073 fd_reify (EV_A); 3775 fd_reify (EV_A);
3074 3776
… …
3086 /* from now on, we want a pipe-wake-up */ 3788 /* from now on, we want a pipe-wake-up */
3087 pipe_write_wanted = 1; 3789 pipe_write_wanted = 1;
3088 3790
3089 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3791 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3090 3792
3091 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3793 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3092 { 3794 {
3093 waittime = MAX_BLOCKTIME; 3795 waittime = MAX_BLOCKTIME;
3094 3796
3095 if (timercnt) 3797 if (timercnt)
3096 { 3798 {
… …
3105 if (waittime > to) waittime = to; 3807 if (waittime > to) waittime = to;
3106 } 3808 }
3107#endif 3809#endif
3108 3810
3109 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3811 /* don't let timeouts decrease the waittime below timeout_blocktime */
3110 if (expect_false (waittime < timeout_blocktime)) 3812 if (ecb_expect_false (waittime < timeout_blocktime))
3111 waittime = timeout_blocktime; 3813 waittime = timeout_blocktime;
3112 3814
3113 /* at this point, we NEED to wait, so we have to ensure */ 3815 /* at this point, we NEED to wait, so we have to ensure */
3114 /* to pass a minimum nonzero value to the backend */ 3816 /* to pass a minimum nonzero value to the backend */
3115 if (expect_false (waittime < backend_mintime)) 3817 if (ecb_expect_false (waittime < backend_mintime))
3116 waittime = backend_mintime; 3818 waittime = backend_mintime;
3117 3819
3118 /* extra check because io_blocktime is commonly 0 */ 3820 /* extra check because io_blocktime is commonly 0 */
3119 if (expect_false (io_blocktime)) 3821 if (ecb_expect_false (io_blocktime))
3120 { 3822 {
3121 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3823 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3122 3824
3123 if (sleeptime > waittime - backend_mintime) 3825 if (sleeptime > waittime - backend_mintime)
3124 sleeptime = waittime - backend_mintime; 3826 sleeptime = waittime - backend_mintime;
3125 3827
3126 if (expect_true (sleeptime > 0.)) 3828 if (ecb_expect_true (sleeptime > 0.))
3127 { 3829 {
3128 ev_sleep (sleeptime); 3830 ev_sleep (sleeptime);
3129 waittime -= sleeptime; 3831 waittime -= sleeptime;
3130 } 3832 }
3131 } 3833 }
… …
3145 { 3847 {
3146 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3848 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3147 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3849 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3148 } 3850 }
3149 3851
3150
3151 /* update ev_rt_now, do magic */ 3852 /* update ev_rt_now, do magic */
3152 time_update (EV_A_ waittime + sleeptime); 3853 time_update (EV_A_ waittime + sleeptime);
3153 } 3854 }
3154 3855
3155 /* queue pending timers and reschedule them */ 3856 /* queue pending timers and reschedule them */
… …
3163 idle_reify (EV_A); 3864 idle_reify (EV_A);
3164#endif 3865#endif
3165 3866
3166#if EV_CHECK_ENABLE 3867#if EV_CHECK_ENABLE
3167 /* queue check watchers, to be executed first */ 3868 /* queue check watchers, to be executed first */
3168 if (expect_false (checkcnt)) 3869 if (ecb_expect_false (checkcnt))
3169 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3870 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3170#endif 3871#endif
3171 3872
3172 EV_INVOKE_PENDING; 3873 EV_INVOKE_PENDING;
3173 } 3874 }
3174 while (expect_true ( 3875 while (ecb_expect_true (
3175 activecnt 3876 activecnt
3176 && !loop_done 3877 && !loop_done
3177 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3878 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3178 )); 3879 ));
3179 3880
… …
3186 3887
3187 return activecnt; 3888 return activecnt;
3188} 3889}
3189 3890
3190void 3891void
3191ev_break (EV_P_ int how) EV_THROW 3892ev_break (EV_P_ int how) EV_NOEXCEPT
3192{ 3893{
3193 loop_done = how; 3894 loop_done = how;
3194} 3895}
3195 3896
3196void 3897void
3197ev_ref (EV_P) EV_THROW 3898ev_ref (EV_P) EV_NOEXCEPT
3198{ 3899{
3199 ++activecnt; 3900 ++activecnt;
3200} 3901}
3201 3902
3202void 3903void
3203ev_unref (EV_P) EV_THROW 3904ev_unref (EV_P) EV_NOEXCEPT
3204{ 3905{
3205 --activecnt; 3906 --activecnt;
3206} 3907}
3207 3908
3208void 3909void
3209ev_now_update (EV_P) EV_THROW 3910ev_now_update (EV_P) EV_NOEXCEPT
3210{ 3911{
3211 time_update (EV_A_ 1e100); 3912 time_update (EV_A_ 1e100);
3212} 3913}
3213 3914
3214void 3915void
3215ev_suspend (EV_P) EV_THROW 3916ev_suspend (EV_P) EV_NOEXCEPT
3216{ 3917{
3217 ev_now_update (EV_A); 3918 ev_now_update (EV_A);
3218} 3919}
3219 3920
3220void 3921void
3221ev_resume (EV_P) EV_THROW 3922ev_resume (EV_P) EV_NOEXCEPT
3222{ 3923{
3223 ev_tstamp mn_prev = mn_now; 3924 ev_tstamp mn_prev = mn_now;
3224 3925
3225 ev_now_update (EV_A); 3926 ev_now_update (EV_A);
3226 timers_reschedule (EV_A_ mn_now - mn_prev); 3927 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3243inline_size void 3944inline_size void
3244wlist_del (WL *head, WL elem) 3945wlist_del (WL *head, WL elem)
3245{ 3946{
3246 while (*head) 3947 while (*head)
3247 { 3948 {
3248 if (expect_true (*head == elem)) 3949 if (ecb_expect_true (*head == elem))
3249 { 3950 {
3250 *head = elem->next; 3951 *head = elem->next;
3251 break; 3952 break;
3252 } 3953 }
3253 3954
… …
3265 w->pending = 0; 3966 w->pending = 0;
3266 } 3967 }
3267} 3968}
3268 3969
3269int 3970int
3270ev_clear_pending (EV_P_ void *w) EV_THROW 3971ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3271{ 3972{
3272 W w_ = (W)w; 3973 W w_ = (W)w;
3273 int pending = w_->pending; 3974 int pending = w_->pending;
3274 3975
3275 if (expect_true (pending)) 3976 if (ecb_expect_true (pending))
3276 { 3977 {
3277 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 3978 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3278 p->w = (W)&pending_w; 3979 p->w = (W)&pending_w;
3279 w_->pending = 0; 3980 w_->pending = 0;
3280 return p->events; 3981 return p->events;
… …
3307 w->active = 0; 4008 w->active = 0;
3308} 4009}
3309 4010
3310/*****************************************************************************/ 4011/*****************************************************************************/
3311 4012
3312void noinline 4013ecb_noinline
4014void
3313ev_io_start (EV_P_ ev_io *w) EV_THROW 4015ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3314{ 4016{
3315 int fd = w->fd; 4017 int fd = w->fd;
3316 4018
3317 if (expect_false (ev_is_active (w))) 4019 if (ecb_expect_false (ev_is_active (w)))
3318 return; 4020 return;
3319 4021
3320 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4022 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3321 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4023 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3322 4024
4025#if EV_VERIFY >= 2
4026 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4027#endif
3323 EV_FREQUENT_CHECK; 4028 EV_FREQUENT_CHECK;
3324 4029
3325 ev_start (EV_A_ (W)w, 1); 4030 ev_start (EV_A_ (W)w, 1);
3326 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4031 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3327 wlist_add (&anfds[fd].head, (WL)w); 4032 wlist_add (&anfds[fd].head, (WL)w);
3328 4033
3329 /* common bug, apparently */ 4034 /* common bug, apparently */
3330 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4035 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3331 4036
… …
3333 w->events &= ~EV__IOFDSET; 4038 w->events &= ~EV__IOFDSET;
3334 4039
3335 EV_FREQUENT_CHECK; 4040 EV_FREQUENT_CHECK;
3336} 4041}
3337 4042
3338void noinline 4043ecb_noinline
4044void
3339ev_io_stop (EV_P_ ev_io *w) EV_THROW 4045ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3340{ 4046{
3341 clear_pending (EV_A_ (W)w); 4047 clear_pending (EV_A_ (W)w);
3342 if (expect_false (!ev_is_active (w))) 4048 if (ecb_expect_false (!ev_is_active (w)))
3343 return; 4049 return;
3344 4050
3345 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4051 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3346 4052
4053#if EV_VERIFY >= 2
4054 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4055#endif
3347 EV_FREQUENT_CHECK; 4056 EV_FREQUENT_CHECK;
3348 4057
3349 wlist_del (&anfds[w->fd].head, (WL)w); 4058 wlist_del (&anfds[w->fd].head, (WL)w);
3350 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
3351 4060
3352 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4061 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3353 4062
3354 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3355} 4064}
3356 4065
3357void noinline 4066ecb_noinline
4067void
3358ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4068ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3359{ 4069{
3360 if (expect_false (ev_is_active (w))) 4070 if (ecb_expect_false (ev_is_active (w)))
3361 return; 4071 return;
3362 4072
3363 ev_at (w) += mn_now; 4073 ev_at (w) += mn_now;
3364 4074
3365 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4075 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3366 4076
3367 EV_FREQUENT_CHECK; 4077 EV_FREQUENT_CHECK;
3368 4078
3369 ++timercnt; 4079 ++timercnt;
3370 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4080 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3371 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4081 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3372 ANHE_w (timers [ev_active (w)]) = (WT)w; 4082 ANHE_w (timers [ev_active (w)]) = (WT)w;
3373 ANHE_at_cache (timers [ev_active (w)]); 4083 ANHE_at_cache (timers [ev_active (w)]);
3374 upheap (timers, ev_active (w)); 4084 upheap (timers, ev_active (w));
3375 4085
3376 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
3377 4087
3378 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4088 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3379} 4089}
3380 4090
3381void noinline 4091ecb_noinline
4092void
3382ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4093ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3383{ 4094{
3384 clear_pending (EV_A_ (W)w); 4095 clear_pending (EV_A_ (W)w);
3385 if (expect_false (!ev_is_active (w))) 4096 if (ecb_expect_false (!ev_is_active (w)))
3386 return; 4097 return;
3387 4098
3388 EV_FREQUENT_CHECK; 4099 EV_FREQUENT_CHECK;
3389 4100
3390 { 4101 {
… …
3392 4103
3393 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4104 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3394 4105
3395 --timercnt; 4106 --timercnt;
3396 4107
3397 if (expect_true (active < timercnt + HEAP0)) 4108 if (ecb_expect_true (active < timercnt + HEAP0))
3398 { 4109 {
3399 timers [active] = timers [timercnt + HEAP0]; 4110 timers [active] = timers [timercnt + HEAP0];
3400 adjustheap (timers, timercnt, active); 4111 adjustheap (timers, timercnt, active);
3401 } 4112 }
3402 } 4113 }
… …
3406 ev_stop (EV_A_ (W)w); 4117 ev_stop (EV_A_ (W)w);
3407 4118
3408 EV_FREQUENT_CHECK; 4119 EV_FREQUENT_CHECK;
3409} 4120}
3410 4121
3411void noinline 4122ecb_noinline
4123void
3412ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4124ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3413{ 4125{
3414 EV_FREQUENT_CHECK; 4126 EV_FREQUENT_CHECK;
3415 4127
3416 clear_pending (EV_A_ (W)w); 4128 clear_pending (EV_A_ (W)w);
3417 4129
… …
3434 4146
3435 EV_FREQUENT_CHECK; 4147 EV_FREQUENT_CHECK;
3436} 4148}
3437 4149
3438ev_tstamp 4150ev_tstamp
3439ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4151ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3440{ 4152{
3441 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4153 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3442} 4154}
3443 4155
3444#if EV_PERIODIC_ENABLE 4156#if EV_PERIODIC_ENABLE
3445void noinline 4157ecb_noinline
4158void
3446ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4159ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3447{ 4160{
3448 if (expect_false (ev_is_active (w))) 4161 if (ecb_expect_false (ev_is_active (w)))
3449 return; 4162 return;
3450 4163
3451 if (w->reschedule_cb) 4164 if (w->reschedule_cb)
3452 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4165 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3453 else if (w->interval) 4166 else if (w->interval)
… …
3460 4173
3461 EV_FREQUENT_CHECK; 4174 EV_FREQUENT_CHECK;
3462 4175
3463 ++periodiccnt; 4176 ++periodiccnt;
3464 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4177 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3465 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4178 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3466 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4179 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3467 ANHE_at_cache (periodics [ev_active (w)]); 4180 ANHE_at_cache (periodics [ev_active (w)]);
3468 upheap (periodics, ev_active (w)); 4181 upheap (periodics, ev_active (w));
3469 4182
3470 EV_FREQUENT_CHECK; 4183 EV_FREQUENT_CHECK;
3471 4184
3472 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4185 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3473} 4186}
3474 4187
3475void noinline 4188ecb_noinline
4189void
3476ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4190ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3477{ 4191{
3478 clear_pending (EV_A_ (W)w); 4192 clear_pending (EV_A_ (W)w);
3479 if (expect_false (!ev_is_active (w))) 4193 if (ecb_expect_false (!ev_is_active (w)))
3480 return; 4194 return;
3481 4195
3482 EV_FREQUENT_CHECK; 4196 EV_FREQUENT_CHECK;
3483 4197
3484 { 4198 {
… …
3486 4200
3487 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4201 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3488 4202
3489 --periodiccnt; 4203 --periodiccnt;
3490 4204
3491 if (expect_true (active < periodiccnt + HEAP0)) 4205 if (ecb_expect_true (active < periodiccnt + HEAP0))
3492 { 4206 {
3493 periodics [active] = periodics [periodiccnt + HEAP0]; 4207 periodics [active] = periodics [periodiccnt + HEAP0];
3494 adjustheap (periodics, periodiccnt, active); 4208 adjustheap (periodics, periodiccnt, active);
3495 } 4209 }
3496 } 4210 }
… …
3498 ev_stop (EV_A_ (W)w); 4212 ev_stop (EV_A_ (W)w);
3499 4213
3500 EV_FREQUENT_CHECK; 4214 EV_FREQUENT_CHECK;
3501} 4215}
3502 4216
3503void noinline 4217ecb_noinline
4218void
3504ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4219ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3505{ 4220{
3506 /* TODO: use adjustheap and recalculation */ 4221 /* TODO: use adjustheap and recalculation */
3507 ev_periodic_stop (EV_A_ w); 4222 ev_periodic_stop (EV_A_ w);
3508 ev_periodic_start (EV_A_ w); 4223 ev_periodic_start (EV_A_ w);
3509} 4224}
… …
3513# define SA_RESTART 0 4228# define SA_RESTART 0
3514#endif 4229#endif
3515 4230
3516#if EV_SIGNAL_ENABLE 4231#if EV_SIGNAL_ENABLE
3517 4232
3518void noinline 4233ecb_noinline
4234void
3519ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4235ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3520{ 4236{
3521 if (expect_false (ev_is_active (w))) 4237 if (ecb_expect_false (ev_is_active (w)))
3522 return; 4238 return;
3523 4239
3524 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4240 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3525 4241
3526#if EV_MULTIPLICITY 4242#if EV_MULTIPLICITY
3527 assert (("libev: a signal must not be attached to two different loops", 4243 assert (("libev: a signal must not be attached to two different loops",
3528 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4244 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3529 4245
3530 signals [w->signum - 1].loop = EV_A; 4246 signals [w->signum - 1].loop = EV_A;
4247 ECB_MEMORY_FENCE_RELEASE;
3531#endif 4248#endif
3532 4249
3533 EV_FREQUENT_CHECK; 4250 EV_FREQUENT_CHECK;
3534 4251
3535#if EV_USE_SIGNALFD 4252#if EV_USE_SIGNALFD
… …
3594 } 4311 }
3595 4312
3596 EV_FREQUENT_CHECK; 4313 EV_FREQUENT_CHECK;
3597} 4314}
3598 4315
3599void noinline 4316ecb_noinline
4317void
3600ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4318ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3601{ 4319{
3602 clear_pending (EV_A_ (W)w); 4320 clear_pending (EV_A_ (W)w);
3603 if (expect_false (!ev_is_active (w))) 4321 if (ecb_expect_false (!ev_is_active (w)))
3604 return; 4322 return;
3605 4323
3606 EV_FREQUENT_CHECK; 4324 EV_FREQUENT_CHECK;
3607 4325
3608 wlist_del (&signals [w->signum - 1].head, (WL)w); 4326 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3636#endif 4354#endif
3637 4355
3638#if EV_CHILD_ENABLE 4356#if EV_CHILD_ENABLE
3639 4357
3640void 4358void
3641ev_child_start (EV_P_ ev_child *w) EV_THROW 4359ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3642{ 4360{
3643#if EV_MULTIPLICITY 4361#if EV_MULTIPLICITY
3644 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4362 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3645#endif 4363#endif
3646 if (expect_false (ev_is_active (w))) 4364 if (ecb_expect_false (ev_is_active (w)))
3647 return; 4365 return;
3648 4366
3649 EV_FREQUENT_CHECK; 4367 EV_FREQUENT_CHECK;
3650 4368
3651 ev_start (EV_A_ (W)w, 1); 4369 ev_start (EV_A_ (W)w, 1);
… …
3653 4371
3654 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
3655} 4373}
3656 4374
3657void 4375void
3658ev_child_stop (EV_P_ ev_child *w) EV_THROW 4376ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3659{ 4377{
3660 clear_pending (EV_A_ (W)w); 4378 clear_pending (EV_A_ (W)w);
3661 if (expect_false (!ev_is_active (w))) 4379 if (ecb_expect_false (!ev_is_active (w)))
3662 return; 4380 return;
3663 4381
3664 EV_FREQUENT_CHECK; 4382 EV_FREQUENT_CHECK;
3665 4383
3666 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4384 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3680 4398
3681#define DEF_STAT_INTERVAL 5.0074891 4399#define DEF_STAT_INTERVAL 5.0074891
3682#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4400#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3683#define MIN_STAT_INTERVAL 0.1074891 4401#define MIN_STAT_INTERVAL 0.1074891
3684 4402
3685static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4403ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3686 4404
3687#if EV_USE_INOTIFY 4405#if EV_USE_INOTIFY
3688 4406
3689/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4407/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3690# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4408# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3691 4409
3692static void noinline 4410ecb_noinline
4411static void
3693infy_add (EV_P_ ev_stat *w) 4412infy_add (EV_P_ ev_stat *w)
3694{ 4413{
3695 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 4414 w->wd = inotify_add_watch (fs_fd, w->path,
4415 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4416 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4417 | IN_DONT_FOLLOW | IN_MASK_ADD);
3696 4418
3697 if (w->wd >= 0) 4419 if (w->wd >= 0)
3698 { 4420 {
3699 struct statfs sfs; 4421 struct statfs sfs;
3700 4422
… …
3704 4426
3705 if (!fs_2625) 4427 if (!fs_2625)
3706 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4428 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3707 else if (!statfs (w->path, &sfs) 4429 else if (!statfs (w->path, &sfs)
3708 && (sfs.f_type == 0x1373 /* devfs */ 4430 && (sfs.f_type == 0x1373 /* devfs */
4431 || sfs.f_type == 0x4006 /* fat */
4432 || sfs.f_type == 0x4d44 /* msdos */
3709 || sfs.f_type == 0xEF53 /* ext2/3 */ 4433 || sfs.f_type == 0xEF53 /* ext2/3 */
4434 || sfs.f_type == 0x72b6 /* jffs2 */
4435 || sfs.f_type == 0x858458f6 /* ramfs */
4436 || sfs.f_type == 0x5346544e /* ntfs */
3710 || sfs.f_type == 0x3153464a /* jfs */ 4437 || sfs.f_type == 0x3153464a /* jfs */
4438 || sfs.f_type == 0x9123683e /* btrfs */
3711 || sfs.f_type == 0x52654973 /* reiser3 */ 4439 || sfs.f_type == 0x52654973 /* reiser3 */
3712 || sfs.f_type == 0x01021994 /* tempfs */ 4440 || sfs.f_type == 0x01021994 /* tmpfs */
3713 || sfs.f_type == 0x58465342 /* xfs */)) 4441 || sfs.f_type == 0x58465342 /* xfs */))
3714 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4442 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3715 else 4443 else
3716 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4444 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3717 } 4445 }
… …
3752 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4480 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3753 ev_timer_again (EV_A_ &w->timer); 4481 ev_timer_again (EV_A_ &w->timer);
3754 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4482 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3755} 4483}
3756 4484
3757static void noinline 4485ecb_noinline
4486static void
3758infy_del (EV_P_ ev_stat *w) 4487infy_del (EV_P_ ev_stat *w)
3759{ 4488{
3760 int slot; 4489 int slot;
3761 int wd = w->wd; 4490 int wd = w->wd;
3762 4491
… …
3769 4498
3770 /* remove this watcher, if others are watching it, they will rearm */ 4499 /* remove this watcher, if others are watching it, they will rearm */
3771 inotify_rm_watch (fs_fd, wd); 4500 inotify_rm_watch (fs_fd, wd);
3772} 4501}
3773 4502
3774static void noinline 4503ecb_noinline
4504static void
3775infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4505infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3776{ 4506{
3777 if (slot < 0) 4507 if (slot < 0)
3778 /* overflow, need to check for all hash slots */ 4508 /* overflow, need to check for all hash slots */
3779 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4509 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3815 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4545 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3816 ofs += sizeof (struct inotify_event) + ev->len; 4546 ofs += sizeof (struct inotify_event) + ev->len;
3817 } 4547 }
3818} 4548}
3819 4549
3820inline_size void ecb_cold 4550inline_size ecb_cold
4551void
3821ev_check_2625 (EV_P) 4552ev_check_2625 (EV_P)
3822{ 4553{
3823 /* kernels < 2.6.25 are borked 4554 /* kernels < 2.6.25 are borked
3824 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4555 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3825 */ 4556 */
… …
3915#else 4646#else
3916# define EV_LSTAT(p,b) lstat (p, b) 4647# define EV_LSTAT(p,b) lstat (p, b)
3917#endif 4648#endif
3918 4649
3919void 4650void
3920ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4651ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3921{ 4652{
3922 if (lstat (w->path, &w->attr) < 0) 4653 if (lstat (w->path, &w->attr) < 0)
3923 w->attr.st_nlink = 0; 4654 w->attr.st_nlink = 0;
3924 else if (!w->attr.st_nlink) 4655 else if (!w->attr.st_nlink)
3925 w->attr.st_nlink = 1; 4656 w->attr.st_nlink = 1;
3926} 4657}
3927 4658
3928static void noinline 4659ecb_noinline
4660static void
3929stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4661stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3930{ 4662{
3931 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4663 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3932 4664
3933 ev_statdata prev = w->attr; 4665 ev_statdata prev = w->attr;
… …
3964 ev_feed_event (EV_A_ w, EV_STAT); 4696 ev_feed_event (EV_A_ w, EV_STAT);
3965 } 4697 }
3966} 4698}
3967 4699
3968void 4700void
3969ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4701ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3970{ 4702{
3971 if (expect_false (ev_is_active (w))) 4703 if (ecb_expect_false (ev_is_active (w)))
3972 return; 4704 return;
3973 4705
3974 ev_stat_stat (EV_A_ w); 4706 ev_stat_stat (EV_A_ w);
3975 4707
3976 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4708 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
3995 4727
3996 EV_FREQUENT_CHECK; 4728 EV_FREQUENT_CHECK;
3997} 4729}
3998 4730
3999void 4731void
4000ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4732ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4001{ 4733{
4002 clear_pending (EV_A_ (W)w); 4734 clear_pending (EV_A_ (W)w);
4003 if (expect_false (!ev_is_active (w))) 4735 if (ecb_expect_false (!ev_is_active (w)))
4004 return; 4736 return;
4005 4737
4006 EV_FREQUENT_CHECK; 4738 EV_FREQUENT_CHECK;
4007 4739
4008#if EV_USE_INOTIFY 4740#if EV_USE_INOTIFY
… …
4021} 4753}
4022#endif 4754#endif
4023 4755
4024#if EV_IDLE_ENABLE 4756#if EV_IDLE_ENABLE
4025void 4757void
4026ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4758ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4027{ 4759{
4028 if (expect_false (ev_is_active (w))) 4760 if (ecb_expect_false (ev_is_active (w)))
4029 return; 4761 return;
4030 4762
4031 pri_adjust (EV_A_ (W)w); 4763 pri_adjust (EV_A_ (W)w);
4032 4764
4033 EV_FREQUENT_CHECK; 4765 EV_FREQUENT_CHECK;
… …
4036 int active = ++idlecnt [ABSPRI (w)]; 4768 int active = ++idlecnt [ABSPRI (w)];
4037 4769
4038 ++idleall; 4770 ++idleall;
4039 ev_start (EV_A_ (W)w, active); 4771 ev_start (EV_A_ (W)w, active);
4040 4772
4041 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4773 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4042 idles [ABSPRI (w)][active - 1] = w; 4774 idles [ABSPRI (w)][active - 1] = w;
4043 } 4775 }
4044 4776
4045 EV_FREQUENT_CHECK; 4777 EV_FREQUENT_CHECK;
4046} 4778}
4047 4779
4048void 4780void
4049ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4781ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4050{ 4782{
4051 clear_pending (EV_A_ (W)w); 4783 clear_pending (EV_A_ (W)w);
4052 if (expect_false (!ev_is_active (w))) 4784 if (ecb_expect_false (!ev_is_active (w)))
4053 return; 4785 return;
4054 4786
4055 EV_FREQUENT_CHECK; 4787 EV_FREQUENT_CHECK;
4056 4788
4057 { 4789 {
… …
4068} 4800}
4069#endif 4801#endif
4070 4802
4071#if EV_PREPARE_ENABLE 4803#if EV_PREPARE_ENABLE
4072void 4804void
4073ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4805ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4074{ 4806{
4075 if (expect_false (ev_is_active (w))) 4807 if (ecb_expect_false (ev_is_active (w)))
4076 return; 4808 return;
4077 4809
4078 EV_FREQUENT_CHECK; 4810 EV_FREQUENT_CHECK;
4079 4811
4080 ev_start (EV_A_ (W)w, ++preparecnt); 4812 ev_start (EV_A_ (W)w, ++preparecnt);
4081 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4813 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4082 prepares [preparecnt - 1] = w; 4814 prepares [preparecnt - 1] = w;
4083 4815
4084 EV_FREQUENT_CHECK; 4816 EV_FREQUENT_CHECK;
4085} 4817}
4086 4818
4087void 4819void
4088ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4820ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4089{ 4821{
4090 clear_pending (EV_A_ (W)w); 4822 clear_pending (EV_A_ (W)w);
4091 if (expect_false (!ev_is_active (w))) 4823 if (ecb_expect_false (!ev_is_active (w)))
4092 return; 4824 return;
4093 4825
4094 EV_FREQUENT_CHECK; 4826 EV_FREQUENT_CHECK;
4095 4827
4096 { 4828 {
… …
4106} 4838}
4107#endif 4839#endif
4108 4840
4109#if EV_CHECK_ENABLE 4841#if EV_CHECK_ENABLE
4110void 4842void
4111ev_check_start (EV_P_ ev_check *w) EV_THROW 4843ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4112{ 4844{
4113 if (expect_false (ev_is_active (w))) 4845 if (ecb_expect_false (ev_is_active (w)))
4114 return; 4846 return;
4115 4847
4116 EV_FREQUENT_CHECK; 4848 EV_FREQUENT_CHECK;
4117 4849
4118 ev_start (EV_A_ (W)w, ++checkcnt); 4850 ev_start (EV_A_ (W)w, ++checkcnt);
4119 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4851 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4120 checks [checkcnt - 1] = w; 4852 checks [checkcnt - 1] = w;
4121 4853
4122 EV_FREQUENT_CHECK; 4854 EV_FREQUENT_CHECK;
4123} 4855}
4124 4856
4125void 4857void
4126ev_check_stop (EV_P_ ev_check *w) EV_THROW 4858ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4127{ 4859{
4128 clear_pending (EV_A_ (W)w); 4860 clear_pending (EV_A_ (W)w);
4129 if (expect_false (!ev_is_active (w))) 4861 if (ecb_expect_false (!ev_is_active (w)))
4130 return; 4862 return;
4131 4863
4132 EV_FREQUENT_CHECK; 4864 EV_FREQUENT_CHECK;
4133 4865
4134 { 4866 {
… …
4143 EV_FREQUENT_CHECK; 4875 EV_FREQUENT_CHECK;
4144} 4876}
4145#endif 4877#endif
4146 4878
4147#if EV_EMBED_ENABLE 4879#if EV_EMBED_ENABLE
4148void noinline 4880ecb_noinline
4881void
4149ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4882ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4150{ 4883{
4151 ev_run (w->other, EVRUN_NOWAIT); 4884 ev_run (w->other, EVRUN_NOWAIT);
4152} 4885}
4153 4886
4154static void 4887static void
… …
4202 ev_idle_stop (EV_A_ idle); 4935 ev_idle_stop (EV_A_ idle);
4203} 4936}
4204#endif 4937#endif
4205 4938
4206void 4939void
4207ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4940ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4208{ 4941{
4209 if (expect_false (ev_is_active (w))) 4942 if (ecb_expect_false (ev_is_active (w)))
4210 return; 4943 return;
4211 4944
4212 { 4945 {
4213 EV_P = w->other; 4946 EV_P = w->other;
4214 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4947 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4233 4966
4234 EV_FREQUENT_CHECK; 4967 EV_FREQUENT_CHECK;
4235} 4968}
4236 4969
4237void 4970void
4238ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4971ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4239{ 4972{
4240 clear_pending (EV_A_ (W)w); 4973 clear_pending (EV_A_ (W)w);
4241 if (expect_false (!ev_is_active (w))) 4974 if (ecb_expect_false (!ev_is_active (w)))
4242 return; 4975 return;
4243 4976
4244 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
4245 4978
4246 ev_io_stop (EV_A_ &w->io); 4979 ev_io_stop (EV_A_ &w->io);
… …
4253} 4986}
4254#endif 4987#endif
4255 4988
4256#if EV_FORK_ENABLE 4989#if EV_FORK_ENABLE
4257void 4990void
4258ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4991ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4259{ 4992{
4260 if (expect_false (ev_is_active (w))) 4993 if (ecb_expect_false (ev_is_active (w)))
4261 return; 4994 return;
4262 4995
4263 EV_FREQUENT_CHECK; 4996 EV_FREQUENT_CHECK;
4264 4997
4265 ev_start (EV_A_ (W)w, ++forkcnt); 4998 ev_start (EV_A_ (W)w, ++forkcnt);
4266 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4999 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4267 forks [forkcnt - 1] = w; 5000 forks [forkcnt - 1] = w;
4268 5001
4269 EV_FREQUENT_CHECK; 5002 EV_FREQUENT_CHECK;
4270} 5003}
4271 5004
4272void 5005void
4273ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5006ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4274{ 5007{
4275 clear_pending (EV_A_ (W)w); 5008 clear_pending (EV_A_ (W)w);
4276 if (expect_false (!ev_is_active (w))) 5009 if (ecb_expect_false (!ev_is_active (w)))
4277 return; 5010 return;
4278 5011
4279 EV_FREQUENT_CHECK; 5012 EV_FREQUENT_CHECK;
4280 5013
4281 { 5014 {
… …
4291} 5024}
4292#endif 5025#endif
4293 5026
4294#if EV_CLEANUP_ENABLE 5027#if EV_CLEANUP_ENABLE
4295void 5028void
4296ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5029ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4297{ 5030{
4298 if (expect_false (ev_is_active (w))) 5031 if (ecb_expect_false (ev_is_active (w)))
4299 return; 5032 return;
4300 5033
4301 EV_FREQUENT_CHECK; 5034 EV_FREQUENT_CHECK;
4302 5035
4303 ev_start (EV_A_ (W)w, ++cleanupcnt); 5036 ev_start (EV_A_ (W)w, ++cleanupcnt);
4304 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5037 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4305 cleanups [cleanupcnt - 1] = w; 5038 cleanups [cleanupcnt - 1] = w;
4306 5039
4307 /* cleanup watchers should never keep a refcount on the loop */ 5040 /* cleanup watchers should never keep a refcount on the loop */
4308 ev_unref (EV_A); 5041 ev_unref (EV_A);
4309 EV_FREQUENT_CHECK; 5042 EV_FREQUENT_CHECK;
4310} 5043}
4311 5044
4312void 5045void
4313ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5046ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4314{ 5047{
4315 clear_pending (EV_A_ (W)w); 5048 clear_pending (EV_A_ (W)w);
4316 if (expect_false (!ev_is_active (w))) 5049 if (ecb_expect_false (!ev_is_active (w)))
4317 return; 5050 return;
4318 5051
4319 EV_FREQUENT_CHECK; 5052 EV_FREQUENT_CHECK;
4320 ev_ref (EV_A); 5053 ev_ref (EV_A);
4321 5054
… …
4332} 5065}
4333#endif 5066#endif
4334 5067
4335#if EV_ASYNC_ENABLE 5068#if EV_ASYNC_ENABLE
4336void 5069void
4337ev_async_start (EV_P_ ev_async *w) EV_THROW 5070ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4338{ 5071{
4339 if (expect_false (ev_is_active (w))) 5072 if (ecb_expect_false (ev_is_active (w)))
4340 return; 5073 return;
4341 5074
4342 w->sent = 0; 5075 w->sent = 0;
4343 5076
4344 evpipe_init (EV_A); 5077 evpipe_init (EV_A);
4345 5078
4346 EV_FREQUENT_CHECK; 5079 EV_FREQUENT_CHECK;
4347 5080
4348 ev_start (EV_A_ (W)w, ++asynccnt); 5081 ev_start (EV_A_ (W)w, ++asynccnt);
4349 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5082 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4350 asyncs [asynccnt - 1] = w; 5083 asyncs [asynccnt - 1] = w;
4351 5084
4352 EV_FREQUENT_CHECK; 5085 EV_FREQUENT_CHECK;
4353} 5086}
4354 5087
4355void 5088void
4356ev_async_stop (EV_P_ ev_async *w) EV_THROW 5089ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4357{ 5090{
4358 clear_pending (EV_A_ (W)w); 5091 clear_pending (EV_A_ (W)w);
4359 if (expect_false (!ev_is_active (w))) 5092 if (ecb_expect_false (!ev_is_active (w)))
4360 return; 5093 return;
4361 5094
4362 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
4363 5096
4364 { 5097 {
… …
4372 5105
4373 EV_FREQUENT_CHECK; 5106 EV_FREQUENT_CHECK;
4374} 5107}
4375 5108
4376void 5109void
4377ev_async_send (EV_P_ ev_async *w) EV_THROW 5110ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4378{ 5111{
4379 w->sent = 1; 5112 w->sent = 1;
4380 evpipe_write (EV_A_ &async_pending); 5113 evpipe_write (EV_A_ &async_pending);
4381} 5114}
4382#endif 5115#endif
… …
4419 5152
4420 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5153 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4421} 5154}
4422 5155
4423void 5156void
4424ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5157ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4425{ 5158{
4426 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5159 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4427
4428 if (expect_false (!once))
4429 {
4430 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4431 return;
4432 }
4433 5160
4434 once->cb = cb; 5161 once->cb = cb;
4435 once->arg = arg; 5162 once->arg = arg;
4436 5163
4437 ev_init (&once->io, once_cb_io); 5164 ev_init (&once->io, once_cb_io);
… …
4450} 5177}
4451 5178
4452/*****************************************************************************/ 5179/*****************************************************************************/
4453 5180
4454#if EV_WALK_ENABLE 5181#if EV_WALK_ENABLE
4455void ecb_cold 5182ecb_cold
5183void
4456ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5184ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4457{ 5185{
4458 int i, j; 5186 int i, j;
4459 ev_watcher_list *wl, *wn; 5187 ev_watcher_list *wl, *wn;
4460 5188
4461 if (types & (EV_IO | EV_EMBED)) 5189 if (types & (EV_IO | EV_EMBED))

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