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

Comparing libev/ev.c (file contents):
Revision 1.449 by root, Sun Sep 23 21:21:58 2012 UTC vs.
Revision 1.516 by root, Tue Dec 24 13:24:29 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
183# if HAVE_SYS_TIMERFD_H
184# ifndef EV_USE_TIMERFD
185# define EV_USE_TIMERFD EV_FEATURE_OS
186# endif
187# else
188# undef EV_USE_TIMERFD
189# define EV_USE_TIMERFD 0
165#endif 190# endif
191
192#endif
193
194/* OS X, in its infinite idiocy, actually HARDCODES
195 * a limit of 1024 into their select. Where people have brains,
196 * OS X engineers apparently have a vacuum. Or maybe they were
197 * ordered to have a vacuum, or they do anything for money.
198 * This might help. Or not.
199 * Note that this must be defined early, as other include files
200 * will rely on this define as well.
201 */
202#define _DARWIN_UNLIMITED_SELECT 1
166 203
167#include <stdlib.h> 204#include <stdlib.h>
168#include <string.h> 205#include <string.h>
169#include <fcntl.h> 206#include <fcntl.h>
170#include <stddef.h> 207#include <stddef.h>
… …
208# ifndef EV_SELECT_IS_WINSOCKET 245# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 246# define EV_SELECT_IS_WINSOCKET 1
210# endif 247# endif
211# undef EV_AVOID_STDIO 248# undef EV_AVOID_STDIO
212#endif 249#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
221 250
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 251/* this block tries to deduce configuration from header-defined symbols and defaults */
223 252
224/* try to deduce the maximum number of signals on this platform */ 253/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 254#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 270#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 271# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 272#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 273# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 274#else
246# error "unable to find value for NSIG, please report" 275# 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 276#endif
251 277
252#ifndef EV_USE_FLOOR 278#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 279# define EV_USE_FLOOR 0
254#endif 280#endif
255 281
256#ifndef EV_USE_CLOCK_SYSCALL 282#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 283# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 284# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 285# else
260# define EV_USE_CLOCK_SYSCALL 0 286# define EV_USE_CLOCK_SYSCALL 0
287# endif
288#endif
289
290#if !(_POSIX_TIMERS > 0)
291# ifndef EV_USE_MONOTONIC
292# define EV_USE_MONOTONIC 0
293# endif
294# ifndef EV_USE_REALTIME
295# define EV_USE_REALTIME 0
261# endif 296# endif
262#endif 297#endif
263 298
264#ifndef EV_USE_MONOTONIC 299#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 300# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 342
308#ifndef EV_USE_PORT 343#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 344# define EV_USE_PORT 0
310#endif 345#endif
311 346
347#ifndef EV_USE_LINUXAIO
348# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
349# define EV_USE_LINUXAIO 1
350# else
351# define EV_USE_LINUXAIO 0
352# endif
353#endif
354
355#ifndef EV_USE_IOURING
356# if __linux /* later checks might disable again */
357# define EV_USE_IOURING 1
358# else
359# define EV_USE_IOURING 0
360# endif
361#endif
362
312#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 365# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 366# else
316# define EV_USE_INOTIFY 0 367# define EV_USE_INOTIFY 0
… …
339# else 390# else
340# define EV_USE_SIGNALFD 0 391# define EV_USE_SIGNALFD 0
341# endif 392# endif
342#endif 393#endif
343 394
395#ifndef EV_USE_TIMERFD
396# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8))
397# define EV_USE_TIMERFD EV_FEATURE_OS
398# else
399# define EV_USE_TIMERFD 0
400# endif
401#endif
402
344#if 0 /* debugging */ 403#if 0 /* debugging */
345# define EV_VERIFY 3 404# define EV_VERIFY 3
346# define EV_USE_4HEAP 1 405# define EV_USE_4HEAP 1
347# define EV_HEAP_CACHE_AT 1 406# define EV_HEAP_CACHE_AT 1
348#endif 407#endif
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 414# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 415#endif
357 416
358#ifndef EV_HEAP_CACHE_AT 417#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 418# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
419#endif
420
421#ifdef __ANDROID__
422/* supposedly, android doesn't typedef fd_mask */
423# undef EV_USE_SELECT
424# define EV_USE_SELECT 0
425/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
426# undef EV_USE_CLOCK_SYSCALL
427# define EV_USE_CLOCK_SYSCALL 0
428#endif
429
430/* aix's poll.h seems to cause lots of trouble */
431#ifdef _AIX
432/* AIX has a completely broken poll.h header */
433# undef EV_USE_POLL
434# define EV_USE_POLL 0
360#endif 435#endif
361 436
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 437/* 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. */ 438/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 439#if EV_USE_CLOCK_SYSCALL
365# include <sys/syscall.h> 440# include <sys/syscall.h>
366# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
368# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
369# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
370# else 446# else
371# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
372# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
373# endif 449# endif
374#endif 450#endif
375 451
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 452/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377 453
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 454#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 455# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 456# define EV_USE_MONOTONIC 0
387#endif 457#endif
388 458
… …
392#endif 462#endif
393 463
394#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
395# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
396# define EV_USE_INOTIFY 0 466# define EV_USE_INOTIFY 0
467#endif
468
469#if __linux && EV_USE_IOURING
470# include <linux/version.h>
471# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
472# undef EV_USE_IOURING
473# define EV_USE_IOURING 0
474# endif
397#endif 475#endif
398 476
399#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
400/* hp-ux has it in sys/time.h, which we unconditionally include above */ 478/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
402# include <sys/select.h> 480# include <sys/select.h>
481# endif
482#endif
483
484#if EV_USE_LINUXAIO
485# include <sys/syscall.h>
486# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
487# define EV_NEED_SYSCALL 1
488# else
489# undef EV_USE_LINUXAIO
490# define EV_USE_LINUXAIO 0
491# endif
492#endif
493
494#if EV_USE_IOURING
495# include <sys/syscall.h>
496# if !SYS_io_uring_setup && __linux && !__alpha
497# define SYS_io_uring_setup 425
498# define SYS_io_uring_enter 426
499# define SYS_io_uring_wregister 427
500# endif
501# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
502# define EV_NEED_SYSCALL 1
503# else
504# undef EV_USE_IOURING
505# define EV_USE_IOURING 0
403# endif 506# endif
404#endif 507#endif
405 508
406#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
407# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
412# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
413# endif 516# endif
414#endif 517#endif
415 518
416#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 520/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
418# include <stdint.h> 521# include <stdint.h>
419# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
420# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
421# endif 524# endif
422# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
428# endif 531# endif
429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
430#endif 533#endif
431 534
432#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 536/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
434# include <stdint.h> 537# include <stdint.h>
435# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
436# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
437# endif 540# endif
438# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
440# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
441# else 544# else
442# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
443# endif 546# endif
444# endif 547# endif
445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); 548EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags);
446 549
447struct signalfd_siginfo 550struct signalfd_siginfo
448{ 551{
449 uint32_t ssi_signo; 552 uint32_t ssi_signo;
450 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
451}; 554};
452#endif 555#endif
453 556
454/**/ 557/* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */
558#if EV_USE_TIMERFD
559# include <sys/timerfd.h>
560/* timerfd is only used for periodics */
561# if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE
562# undef EV_USE_TIMERFD
563# define EV_USE_TIMERFD 0
564# endif
565#endif
566
567/*****************************************************************************/
455 568
456#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
457# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
458#else 571#else
459# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
464 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
465 */ 578 */
466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
468 581
469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 582#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 583#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
471 584
585/* find a portable timestamp that is "always" in the future but fits into time_t.
586 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
587 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
588#define EV_TSTAMP_HUGE \
589 (sizeof (time_t) >= 8 ? 10000000000000. \
590 : 0 < (time_t)4294967295 ? 4294967295. \
591 : 2147483647.) \
592
593#ifndef EV_TS_CONST
594# define EV_TS_CONST(nv) nv
595# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
596# define EV_TS_FROM_USEC(us) us * 1e-6
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 597# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 598# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
599# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
600# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
601#endif
474 602
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
1647
1648/*****************************************************************************/
1649/* raw syscall wrappers */
1650
1651#if EV_NEED_SYSCALL
1652
1653#include <sys/syscall.h>
1654
1655/*
1656 * define some syscall wrappers for common architectures
1657 * this is mostly for nice looks during debugging, not performance.
1658 * our syscalls return < 0, not == -1, on error. which is good
1659 * enough for linux aio.
1660 * TODO: arm is also common nowadays, maybe even mips and x86
1661 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1662 */
1663#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1664 /* the costly errno access probably kills this for size optimisation */
1665
1666 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1667 ({ \
1668 long res; \
1669 register unsigned long r6 __asm__ ("r9" ); \
1670 register unsigned long r5 __asm__ ("r8" ); \
1671 register unsigned long r4 __asm__ ("r10"); \
1672 register unsigned long r3 __asm__ ("rdx"); \
1673 register unsigned long r2 __asm__ ("rsi"); \
1674 register unsigned long r1 __asm__ ("rdi"); \
1675 if (narg >= 6) r6 = (unsigned long)(arg6); \
1676 if (narg >= 5) r5 = (unsigned long)(arg5); \
1677 if (narg >= 4) r4 = (unsigned long)(arg4); \
1678 if (narg >= 3) r3 = (unsigned long)(arg3); \
1679 if (narg >= 2) r2 = (unsigned long)(arg2); \
1680 if (narg >= 1) r1 = (unsigned long)(arg1); \
1681 __asm__ __volatile__ ( \
1682 "syscall\n\t" \
1683 : "=a" (res) \
1684 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1685 : "cc", "r11", "cx", "memory"); \
1686 errno = -res; \
1687 res; \
1688 })
1689
1690#endif
1691
1692#ifdef ev_syscall
1693 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1694 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1695 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1696 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1697 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1698 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1699 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1700#else
1701 #define ev_syscall0(nr) syscall (nr)
1702 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1703 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1704 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1705 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1706 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1707 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1708#endif
1709
1710#endif
1711
1712/*****************************************************************************/
1020 1713
1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1714#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1022 1715
1023#if EV_MINPRI == EV_MAXPRI 1716#if EV_MINPRI == EV_MAXPRI
1024# define ABSPRI(w) (((W)w), 0) 1717# define ABSPRI(w) (((W)w), 0)
1025#else 1718#else
1026# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1719# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1027#endif 1720#endif
1028 1721
1029#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1722#define EMPTY /* required for microsofts broken pseudo-c compiler */
1030#define EMPTY2(a,b) /* used to suppress some warnings */
1031 1723
1032typedef ev_watcher *W; 1724typedef ev_watcher *W;
1033typedef ev_watcher_list *WL; 1725typedef ev_watcher_list *WL;
1034typedef ev_watcher_time *WT; 1726typedef ev_watcher_time *WT;
1035 1727
… …
1060# include "ev_win32.c" 1752# include "ev_win32.c"
1061#endif 1753#endif
1062 1754
1063/*****************************************************************************/ 1755/*****************************************************************************/
1064 1756
1757#if EV_USE_LINUXAIO
1758# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1759#endif
1760
1065/* define a suitable floor function (only used by periodics atm) */ 1761/* define a suitable floor function (only used by periodics atm) */
1066 1762
1067#if EV_USE_FLOOR 1763#if EV_USE_FLOOR
1068# include <math.h> 1764# include <math.h>
1069# define ev_floor(v) floor (v) 1765# define ev_floor(v) floor (v)
1070#else 1766#else
1071 1767
1072#include <float.h> 1768#include <float.h>
1073 1769
1074/* a floor() replacement function, should be independent of ev_tstamp type */ 1770/* a floor() replacement function, should be independent of ev_tstamp type */
1771ecb_noinline
1075static ev_tstamp noinline 1772static ev_tstamp
1076ev_floor (ev_tstamp v) 1773ev_floor (ev_tstamp v)
1077{ 1774{
1078 /* the choice of shift factor is not terribly important */ 1775 /* the choice of shift factor is not terribly important */
1079#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1776#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1080 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1777 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1081#else 1778#else
1082 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1779 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1083#endif 1780#endif
1084 1781
1782 /* special treatment for negative arguments */
1783 if (ecb_expect_false (v < 0.))
1784 {
1785 ev_tstamp f = -ev_floor (-v);
1786
1787 return f - (f == v ? 0 : 1);
1788 }
1789
1085 /* argument too large for an unsigned long? */ 1790 /* argument too large for an unsigned long? then reduce it */
1086 if (expect_false (v >= shift)) 1791 if (ecb_expect_false (v >= shift))
1087 { 1792 {
1088 ev_tstamp f; 1793 ev_tstamp f;
1089 1794
1090 if (v == v - 1.) 1795 if (v == v - 1.)
1091 return v; /* very large number */ 1796 return v; /* very large numbers are assumed to be integer */
1092 1797
1093 f = shift * ev_floor (v * (1. / shift)); 1798 f = shift * ev_floor (v * (1. / shift));
1094 return f + ev_floor (v - f); 1799 return f + ev_floor (v - f);
1095 } 1800 }
1096 1801
1097 /* special treatment for negative args? */
1098 if (expect_false (v < 0.))
1099 {
1100 ev_tstamp f = -ev_floor (-v);
1101
1102 return f - (f == v ? 0 : 1);
1103 }
1104
1105 /* fits into an unsigned long */ 1802 /* fits into an unsigned long */
1106 return (unsigned long)v; 1803 return (unsigned long)v;
1107} 1804}
1108 1805
1109#endif 1806#endif
… …
1112 1809
1113#ifdef __linux 1810#ifdef __linux
1114# include <sys/utsname.h> 1811# include <sys/utsname.h>
1115#endif 1812#endif
1116 1813
1117static unsigned int noinline ecb_cold 1814ecb_noinline ecb_cold
1815static unsigned int
1118ev_linux_version (void) 1816ev_linux_version (void)
1119{ 1817{
1120#ifdef __linux 1818#ifdef __linux
1121 unsigned int v = 0; 1819 unsigned int v = 0;
1122 struct utsname buf; 1820 struct utsname buf;
… …
1151} 1849}
1152 1850
1153/*****************************************************************************/ 1851/*****************************************************************************/
1154 1852
1155#if EV_AVOID_STDIO 1853#if EV_AVOID_STDIO
1156static void noinline ecb_cold 1854ecb_noinline ecb_cold
1855static void
1157ev_printerr (const char *msg) 1856ev_printerr (const char *msg)
1158{ 1857{
1159 write (STDERR_FILENO, msg, strlen (msg)); 1858 write (STDERR_FILENO, msg, strlen (msg));
1160} 1859}
1161#endif 1860#endif
1162 1861
1163static void (*syserr_cb)(const char *msg) EV_THROW; 1862static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1164 1863
1165void ecb_cold 1864ecb_cold
1865void
1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1866ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1167{ 1867{
1168 syserr_cb = cb; 1868 syserr_cb = cb;
1169} 1869}
1170 1870
1171static void noinline ecb_cold 1871ecb_noinline ecb_cold
1872static void
1172ev_syserr (const char *msg) 1873ev_syserr (const char *msg)
1173{ 1874{
1174 if (!msg) 1875 if (!msg)
1175 msg = "(libev) system error"; 1876 msg = "(libev) system error";
1176 1877
… …
1189 abort (); 1890 abort ();
1190 } 1891 }
1191} 1892}
1192 1893
1193static void * 1894static void *
1194ev_realloc_emul (void *ptr, long size) EV_THROW 1895ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1195{ 1896{
1196 /* some systems, notably openbsd and darwin, fail to properly 1897 /* some systems, notably openbsd and darwin, fail to properly
1197 * implement realloc (x, 0) (as required by both ansi c-89 and 1898 * implement realloc (x, 0) (as required by both ansi c-89 and
1198 * the single unix specification, so work around them here. 1899 * the single unix specification, so work around them here.
1199 * recently, also (at least) fedora and debian started breaking it, 1900 * recently, also (at least) fedora and debian started breaking it,
… …
1205 1906
1206 free (ptr); 1907 free (ptr);
1207 return 0; 1908 return 0;
1208} 1909}
1209 1910
1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1911static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1211 1912
1212void ecb_cold 1913ecb_cold
1914void
1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1915ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1214{ 1916{
1215 alloc = cb; 1917 alloc = cb;
1216} 1918}
1217 1919
1218inline_speed void * 1920inline_speed void *
… …
1245typedef struct 1947typedef struct
1246{ 1948{
1247 WL head; 1949 WL head;
1248 unsigned char events; /* the events watched for */ 1950 unsigned char events; /* the events watched for */
1249 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1951 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1250 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1952 unsigned char emask; /* some backends store the actual kernel mask in here */
1251 unsigned char unused; 1953 unsigned char eflags; /* flags field for use by backends */
1252#if EV_USE_EPOLL 1954#if EV_USE_EPOLL
1253 unsigned int egen; /* generation counter to counter epoll bugs */ 1955 unsigned int egen; /* generation counter to counter epoll bugs */
1254#endif 1956#endif
1255#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1957#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1256 SOCKET handle; 1958 SOCKET handle;
… …
1310 static struct ev_loop default_loop_struct; 2012 static struct ev_loop default_loop_struct;
1311 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 2013 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1312 2014
1313#else 2015#else
1314 2016
1315 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 2017 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1316 #define VAR(name,decl) static decl; 2018 #define VAR(name,decl) static decl;
1317 #include "ev_vars.h" 2019 #include "ev_vars.h"
1318 #undef VAR 2020 #undef VAR
1319 2021
1320 static int ev_default_loop_ptr; 2022 static int ev_default_loop_ptr;
1321 2023
1322#endif 2024#endif
1323 2025
1324#if EV_FEATURE_API 2026#if EV_FEATURE_API
1325# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2027# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1326# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2028# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1327# define EV_INVOKE_PENDING invoke_cb (EV_A) 2029# define EV_INVOKE_PENDING invoke_cb (EV_A)
1328#else 2030#else
1329# define EV_RELEASE_CB (void)0 2031# define EV_RELEASE_CB (void)0
1330# define EV_ACQUIRE_CB (void)0 2032# define EV_ACQUIRE_CB (void)0
1331# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2033# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1335 2037
1336/*****************************************************************************/ 2038/*****************************************************************************/
1337 2039
1338#ifndef EV_HAVE_EV_TIME 2040#ifndef EV_HAVE_EV_TIME
1339ev_tstamp 2041ev_tstamp
1340ev_time (void) EV_THROW 2042ev_time (void) EV_NOEXCEPT
1341{ 2043{
1342#if EV_USE_REALTIME 2044#if EV_USE_REALTIME
1343 if (expect_true (have_realtime)) 2045 if (ecb_expect_true (have_realtime))
1344 { 2046 {
1345 struct timespec ts; 2047 struct timespec ts;
1346 clock_gettime (CLOCK_REALTIME, &ts); 2048 clock_gettime (CLOCK_REALTIME, &ts);
1347 return ts.tv_sec + ts.tv_nsec * 1e-9; 2049 return EV_TS_GET (ts);
1348 } 2050 }
1349#endif 2051#endif
1350 2052
2053 {
1351 struct timeval tv; 2054 struct timeval tv;
1352 gettimeofday (&tv, 0); 2055 gettimeofday (&tv, 0);
1353 return tv.tv_sec + tv.tv_usec * 1e-6; 2056 return EV_TV_GET (tv);
2057 }
1354} 2058}
1355#endif 2059#endif
1356 2060
1357inline_size ev_tstamp 2061inline_size ev_tstamp
1358get_clock (void) 2062get_clock (void)
1359{ 2063{
1360#if EV_USE_MONOTONIC 2064#if EV_USE_MONOTONIC
1361 if (expect_true (have_monotonic)) 2065 if (ecb_expect_true (have_monotonic))
1362 { 2066 {
1363 struct timespec ts; 2067 struct timespec ts;
1364 clock_gettime (CLOCK_MONOTONIC, &ts); 2068 clock_gettime (CLOCK_MONOTONIC, &ts);
1365 return ts.tv_sec + ts.tv_nsec * 1e-9; 2069 return EV_TS_GET (ts);
1366 } 2070 }
1367#endif 2071#endif
1368 2072
1369 return ev_time (); 2073 return ev_time ();
1370} 2074}
1371 2075
1372#if EV_MULTIPLICITY 2076#if EV_MULTIPLICITY
1373ev_tstamp 2077ev_tstamp
1374ev_now (EV_P) EV_THROW 2078ev_now (EV_P) EV_NOEXCEPT
1375{ 2079{
1376 return ev_rt_now; 2080 return ev_rt_now;
1377} 2081}
1378#endif 2082#endif
1379 2083
1380void 2084void
1381ev_sleep (ev_tstamp delay) EV_THROW 2085ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1382{ 2086{
1383 if (delay > 0.) 2087 if (delay > EV_TS_CONST (0.))
1384 { 2088 {
1385#if EV_USE_NANOSLEEP 2089#if EV_USE_NANOSLEEP
1386 struct timespec ts; 2090 struct timespec ts;
1387 2091
1388 EV_TS_SET (ts, delay); 2092 EV_TS_SET (ts, delay);
1389 nanosleep (&ts, 0); 2093 nanosleep (&ts, 0);
1390#elif defined _WIN32 2094#elif defined _WIN32
2095 /* maybe this should round up, as ms is very low resolution */
2096 /* compared to select (µs) or nanosleep (ns) */
1391 Sleep ((unsigned long)(delay * 1e3)); 2097 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1392#else 2098#else
1393 struct timeval tv; 2099 struct timeval tv;
1394 2100
1395 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2101 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1396 /* something not guaranteed by newer posix versions, but guaranteed */ 2102 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1426 } 2132 }
1427 2133
1428 return ncur; 2134 return ncur;
1429} 2135}
1430 2136
1431static void * noinline ecb_cold 2137ecb_noinline ecb_cold
2138static void *
1432array_realloc (int elem, void *base, int *cur, int cnt) 2139array_realloc (int elem, void *base, int *cur, int cnt)
1433{ 2140{
1434 *cur = array_nextsize (elem, *cur, cnt); 2141 *cur = array_nextsize (elem, *cur, cnt);
1435 return ev_realloc (base, elem * *cur); 2142 return ev_realloc (base, elem * *cur);
1436} 2143}
1437 2144
2145#define array_needsize_noinit(base,offset,count)
2146
1438#define array_init_zero(base,count) \ 2147#define array_needsize_zerofill(base,offset,count) \
1439 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2148 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1440 2149
1441#define array_needsize(type,base,cur,cnt,init) \ 2150#define array_needsize(type,base,cur,cnt,init) \
1442 if (expect_false ((cnt) > (cur))) \ 2151 if (ecb_expect_false ((cnt) > (cur))) \
1443 { \ 2152 { \
1444 int ecb_unused ocur_ = (cur); \ 2153 ecb_unused int ocur_ = (cur); \
1445 (base) = (type *)array_realloc \ 2154 (base) = (type *)array_realloc \
1446 (sizeof (type), (base), &(cur), (cnt)); \ 2155 (sizeof (type), (base), &(cur), (cnt)); \
1447 init ((base) + (ocur_), (cur) - ocur_); \ 2156 init ((base), ocur_, ((cur) - ocur_)); \
1448 } 2157 }
1449 2158
1450#if 0 2159#if 0
1451#define array_slim(type,stem) \ 2160#define array_slim(type,stem) \
1452 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2161 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1461 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2170 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1462 2171
1463/*****************************************************************************/ 2172/*****************************************************************************/
1464 2173
1465/* dummy callback for pending events */ 2174/* dummy callback for pending events */
1466static void noinline 2175ecb_noinline
2176static void
1467pendingcb (EV_P_ ev_prepare *w, int revents) 2177pendingcb (EV_P_ ev_prepare *w, int revents)
1468{ 2178{
1469} 2179}
1470 2180
1471void noinline 2181ecb_noinline
2182void
1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2183ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1473{ 2184{
1474 W w_ = (W)w; 2185 W w_ = (W)w;
1475 int pri = ABSPRI (w_); 2186 int pri = ABSPRI (w_);
1476 2187
1477 if (expect_false (w_->pending)) 2188 if (ecb_expect_false (w_->pending))
1478 pendings [pri][w_->pending - 1].events |= revents; 2189 pendings [pri][w_->pending - 1].events |= revents;
1479 else 2190 else
1480 { 2191 {
1481 w_->pending = ++pendingcnt [pri]; 2192 w_->pending = ++pendingcnt [pri];
1482 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2193 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1483 pendings [pri][w_->pending - 1].w = w_; 2194 pendings [pri][w_->pending - 1].w = w_;
1484 pendings [pri][w_->pending - 1].events = revents; 2195 pendings [pri][w_->pending - 1].events = revents;
1485 } 2196 }
1486 2197
1487 pendingpri = NUMPRI - 1; 2198 pendingpri = NUMPRI - 1;
1488} 2199}
1489 2200
1490inline_speed void 2201inline_speed void
1491feed_reverse (EV_P_ W w) 2202feed_reverse (EV_P_ W w)
1492{ 2203{
1493 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2204 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1494 rfeeds [rfeedcnt++] = w; 2205 rfeeds [rfeedcnt++] = w;
1495} 2206}
1496 2207
1497inline_size void 2208inline_size void
1498feed_reverse_done (EV_P_ int revents) 2209feed_reverse_done (EV_P_ int revents)
… …
1533inline_speed void 2244inline_speed void
1534fd_event (EV_P_ int fd, int revents) 2245fd_event (EV_P_ int fd, int revents)
1535{ 2246{
1536 ANFD *anfd = anfds + fd; 2247 ANFD *anfd = anfds + fd;
1537 2248
1538 if (expect_true (!anfd->reify)) 2249 if (ecb_expect_true (!anfd->reify))
1539 fd_event_nocheck (EV_A_ fd, revents); 2250 fd_event_nocheck (EV_A_ fd, revents);
1540} 2251}
1541 2252
1542void 2253void
1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2254ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1544{ 2255{
1545 if (fd >= 0 && fd < anfdmax) 2256 if (fd >= 0 && fd < anfdmax)
1546 fd_event_nocheck (EV_A_ fd, revents); 2257 fd_event_nocheck (EV_A_ fd, revents);
1547} 2258}
1548 2259
… …
1585 ev_io *w; 2296 ev_io *w;
1586 2297
1587 unsigned char o_events = anfd->events; 2298 unsigned char o_events = anfd->events;
1588 unsigned char o_reify = anfd->reify; 2299 unsigned char o_reify = anfd->reify;
1589 2300
1590 anfd->reify = 0; 2301 anfd->reify = 0;
1591 2302
1592 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2303 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1593 { 2304 {
1594 anfd->events = 0; 2305 anfd->events = 0;
1595 2306
1596 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2307 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1597 anfd->events |= (unsigned char)w->events; 2308 anfd->events |= (unsigned char)w->events;
… …
1606 2317
1607 fdchangecnt = 0; 2318 fdchangecnt = 0;
1608} 2319}
1609 2320
1610/* something about the given fd changed */ 2321/* something about the given fd changed */
1611inline_size void 2322inline_size
2323void
1612fd_change (EV_P_ int fd, int flags) 2324fd_change (EV_P_ int fd, int flags)
1613{ 2325{
1614 unsigned char reify = anfds [fd].reify; 2326 unsigned char reify = anfds [fd].reify;
1615 anfds [fd].reify |= flags; 2327 anfds [fd].reify |= flags;
1616 2328
1617 if (expect_true (!reify)) 2329 if (ecb_expect_true (!reify))
1618 { 2330 {
1619 ++fdchangecnt; 2331 ++fdchangecnt;
1620 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2332 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1621 fdchanges [fdchangecnt - 1] = fd; 2333 fdchanges [fdchangecnt - 1] = fd;
1622 } 2334 }
1623} 2335}
1624 2336
1625/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2337/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1626inline_speed void ecb_cold 2338inline_speed ecb_cold void
1627fd_kill (EV_P_ int fd) 2339fd_kill (EV_P_ int fd)
1628{ 2340{
1629 ev_io *w; 2341 ev_io *w;
1630 2342
1631 while ((w = (ev_io *)anfds [fd].head)) 2343 while ((w = (ev_io *)anfds [fd].head))
… …
1634 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2346 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1635 } 2347 }
1636} 2348}
1637 2349
1638/* check whether the given fd is actually valid, for error recovery */ 2350/* check whether the given fd is actually valid, for error recovery */
1639inline_size int ecb_cold 2351inline_size ecb_cold int
1640fd_valid (int fd) 2352fd_valid (int fd)
1641{ 2353{
1642#ifdef _WIN32 2354#ifdef _WIN32
1643 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2355 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1644#else 2356#else
1645 return fcntl (fd, F_GETFD) != -1; 2357 return fcntl (fd, F_GETFD) != -1;
1646#endif 2358#endif
1647} 2359}
1648 2360
1649/* called on EBADF to verify fds */ 2361/* called on EBADF to verify fds */
1650static void noinline ecb_cold 2362ecb_noinline ecb_cold
2363static void
1651fd_ebadf (EV_P) 2364fd_ebadf (EV_P)
1652{ 2365{
1653 int fd; 2366 int fd;
1654 2367
1655 for (fd = 0; fd < anfdmax; ++fd) 2368 for (fd = 0; fd < anfdmax; ++fd)
… …
1657 if (!fd_valid (fd) && errno == EBADF) 2370 if (!fd_valid (fd) && errno == EBADF)
1658 fd_kill (EV_A_ fd); 2371 fd_kill (EV_A_ fd);
1659} 2372}
1660 2373
1661/* called on ENOMEM in select/poll to kill some fds and retry */ 2374/* called on ENOMEM in select/poll to kill some fds and retry */
1662static void noinline ecb_cold 2375ecb_noinline ecb_cold
2376static void
1663fd_enomem (EV_P) 2377fd_enomem (EV_P)
1664{ 2378{
1665 int fd; 2379 int fd;
1666 2380
1667 for (fd = anfdmax; fd--; ) 2381 for (fd = anfdmax; fd--; )
… …
1671 break; 2385 break;
1672 } 2386 }
1673} 2387}
1674 2388
1675/* usually called after fork if backend needs to re-arm all fds from scratch */ 2389/* usually called after fork if backend needs to re-arm all fds from scratch */
1676static void noinline 2390ecb_noinline
2391static void
1677fd_rearm_all (EV_P) 2392fd_rearm_all (EV_P)
1678{ 2393{
1679 int fd; 2394 int fd;
1680 2395
1681 for (fd = 0; fd < anfdmax; ++fd) 2396 for (fd = 0; fd < anfdmax; ++fd)
… …
1734 ev_tstamp minat; 2449 ev_tstamp minat;
1735 ANHE *minpos; 2450 ANHE *minpos;
1736 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2451 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1737 2452
1738 /* find minimum child */ 2453 /* find minimum child */
1739 if (expect_true (pos + DHEAP - 1 < E)) 2454 if (ecb_expect_true (pos + DHEAP - 1 < E))
1740 { 2455 {
1741 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2456 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1742 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2457 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1743 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2458 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1744 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2459 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1745 } 2460 }
1746 else if (pos < E) 2461 else if (pos < E)
1747 { 2462 {
1748 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2463 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1749 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2464 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1750 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2465 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1751 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2466 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1752 } 2467 }
1753 else 2468 else
1754 break; 2469 break;
1755 2470
1756 if (ANHE_at (he) <= minat) 2471 if (ANHE_at (he) <= minat)
… …
1764 2479
1765 heap [k] = he; 2480 heap [k] = he;
1766 ev_active (ANHE_w (he)) = k; 2481 ev_active (ANHE_w (he)) = k;
1767} 2482}
1768 2483
1769#else /* 4HEAP */ 2484#else /* not 4HEAP */
1770 2485
1771#define HEAP0 1 2486#define HEAP0 1
1772#define HPARENT(k) ((k) >> 1) 2487#define HPARENT(k) ((k) >> 1)
1773#define UPHEAP_DONE(p,k) (!(p)) 2488#define UPHEAP_DONE(p,k) (!(p))
1774 2489
… …
1862 2577
1863/*****************************************************************************/ 2578/*****************************************************************************/
1864 2579
1865#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2580#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1866 2581
1867static void noinline ecb_cold 2582ecb_noinline ecb_cold
2583static void
1868evpipe_init (EV_P) 2584evpipe_init (EV_P)
1869{ 2585{
1870 if (!ev_is_active (&pipe_w)) 2586 if (!ev_is_active (&pipe_w))
1871 { 2587 {
1872 int fds [2]; 2588 int fds [2];
… …
1883 while (pipe (fds)) 2599 while (pipe (fds))
1884 ev_syserr ("(libev) error creating signal/async pipe"); 2600 ev_syserr ("(libev) error creating signal/async pipe");
1885 2601
1886 fd_intern (fds [0]); 2602 fd_intern (fds [0]);
1887 } 2603 }
1888
1889 fd_intern (fds [1]);
1890 2604
1891 evpipe [0] = fds [0]; 2605 evpipe [0] = fds [0];
1892 2606
1893 if (evpipe [1] < 0) 2607 if (evpipe [1] < 0)
1894 evpipe [1] = fds [1]; /* first call, set write fd */ 2608 evpipe [1] = fds [1]; /* first call, set write fd */
… …
1901 2615
1902 dup2 (fds [1], evpipe [1]); 2616 dup2 (fds [1], evpipe [1]);
1903 close (fds [1]); 2617 close (fds [1]);
1904 } 2618 }
1905 2619
2620 fd_intern (evpipe [1]);
2621
1906 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2622 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1907 ev_io_start (EV_A_ &pipe_w); 2623 ev_io_start (EV_A_ &pipe_w);
1908 ev_unref (EV_A); /* watcher should not keep loop alive */ 2624 ev_unref (EV_A); /* watcher should not keep loop alive */
1909 } 2625 }
1910} 2626}
… …
1912inline_speed void 2628inline_speed void
1913evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2629evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1914{ 2630{
1915 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2631 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1916 2632
1917 if (expect_true (*flag)) 2633 if (ecb_expect_true (*flag))
1918 return; 2634 return;
1919 2635
1920 *flag = 1; 2636 *flag = 1;
1921 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2637 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1922 2638
… …
1943#endif 2659#endif
1944 { 2660 {
1945#ifdef _WIN32 2661#ifdef _WIN32
1946 WSABUF buf; 2662 WSABUF buf;
1947 DWORD sent; 2663 DWORD sent;
1948 buf.buf = &buf; 2664 buf.buf = (char *)&buf;
1949 buf.len = 1; 2665 buf.len = 1;
1950 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2666 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1951#else 2667#else
1952 write (evpipe [1], &(evpipe [1]), 1); 2668 write (evpipe [1], &(evpipe [1]), 1);
1953#endif 2669#endif
… …
1999 sig_pending = 0; 2715 sig_pending = 0;
2000 2716
2001 ECB_MEMORY_FENCE; 2717 ECB_MEMORY_FENCE;
2002 2718
2003 for (i = EV_NSIG - 1; i--; ) 2719 for (i = EV_NSIG - 1; i--; )
2004 if (expect_false (signals [i].pending)) 2720 if (ecb_expect_false (signals [i].pending))
2005 ev_feed_signal_event (EV_A_ i + 1); 2721 ev_feed_signal_event (EV_A_ i + 1);
2006 } 2722 }
2007#endif 2723#endif
2008 2724
2009#if EV_ASYNC_ENABLE 2725#if EV_ASYNC_ENABLE
… …
2025} 2741}
2026 2742
2027/*****************************************************************************/ 2743/*****************************************************************************/
2028 2744
2029void 2745void
2030ev_feed_signal (int signum) EV_THROW 2746ev_feed_signal (int signum) EV_NOEXCEPT
2031{ 2747{
2032#if EV_MULTIPLICITY 2748#if EV_MULTIPLICITY
2749 EV_P;
2033 ECB_MEMORY_FENCE_ACQUIRE; 2750 ECB_MEMORY_FENCE_ACQUIRE;
2034 EV_P = signals [signum - 1].loop; 2751 EV_A = signals [signum - 1].loop;
2035 2752
2036 if (!EV_A) 2753 if (!EV_A)
2037 return; 2754 return;
2038#endif 2755#endif
2039 2756
… …
2049#endif 2766#endif
2050 2767
2051 ev_feed_signal (signum); 2768 ev_feed_signal (signum);
2052} 2769}
2053 2770
2054void noinline 2771ecb_noinline
2772void
2055ev_feed_signal_event (EV_P_ int signum) EV_THROW 2773ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2056{ 2774{
2057 WL w; 2775 WL w;
2058 2776
2059 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2777 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2060 return; 2778 return;
2061 2779
2062 --signum; 2780 --signum;
2063 2781
2064#if EV_MULTIPLICITY 2782#if EV_MULTIPLICITY
2065 /* it is permissible to try to feed a signal to the wrong loop */ 2783 /* it is permissible to try to feed a signal to the wrong loop */
2066 /* or, likely more useful, feeding a signal nobody is waiting for */ 2784 /* or, likely more useful, feeding a signal nobody is waiting for */
2067 2785
2068 if (expect_false (signals [signum].loop != EV_A)) 2786 if (ecb_expect_false (signals [signum].loop != EV_A))
2069 return; 2787 return;
2070#endif 2788#endif
2071 2789
2072 signals [signum].pending = 0; 2790 signals [signum].pending = 0;
2073 ECB_MEMORY_FENCE_RELEASE; 2791 ECB_MEMORY_FENCE_RELEASE;
… …
2157 2875
2158#endif 2876#endif
2159 2877
2160/*****************************************************************************/ 2878/*****************************************************************************/
2161 2879
2880#if EV_USE_TIMERFD
2881
2882static void periodics_reschedule (EV_P);
2883
2884static void
2885timerfdcb (EV_P_ ev_io *iow, int revents)
2886{
2887 struct itimerspec its = { 0 };
2888
2889 /* since we can't easily come zup with a (portable) maximum value of time_t,
2890 * we wake up once per month, which hopefully is rare enough to not
2891 * be a problem. */
2892 its.it_value.tv_sec = ev_rt_now + 86400 * 30;
2893 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
2894
2895 ev_rt_now = ev_time ();
2896 /* periodics_reschedule only needs ev_rt_now */
2897 /* but maybe in the future we want the full treatment. */
2898 /*
2899 now_floor = EV_TS_CONST (0.);
2900 time_update (EV_A_ EV_TSTAMP_HUGE);
2901 */
2902 periodics_reschedule (EV_A);
2903}
2904
2905ecb_noinline ecb_cold
2906static void
2907evtimerfd_init (EV_P)
2908{
2909 if (!ev_is_active (&timerfd_w))
2910 {
2911 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
2912
2913 if (timerfd >= 0)
2914 {
2915 fd_intern (timerfd); /* just to be sure */
2916
2917 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
2918 ev_set_priority (&timerfd_w, EV_MINPRI);
2919 ev_io_start (EV_A_ &timerfd_w);
2920 ev_unref (EV_A); /* watcher should not keep loop alive */
2921
2922 /* (re-) arm timer */
2923 timerfdcb (EV_A_ 0, 0);
2924 }
2925 }
2926}
2927
2928#endif
2929
2930/*****************************************************************************/
2931
2162#if EV_USE_IOCP 2932#if EV_USE_IOCP
2163# include "ev_iocp.c" 2933# include "ev_iocp.c"
2164#endif 2934#endif
2165#if EV_USE_PORT 2935#if EV_USE_PORT
2166# include "ev_port.c" 2936# include "ev_port.c"
… …
2169# include "ev_kqueue.c" 2939# include "ev_kqueue.c"
2170#endif 2940#endif
2171#if EV_USE_EPOLL 2941#if EV_USE_EPOLL
2172# include "ev_epoll.c" 2942# include "ev_epoll.c"
2173#endif 2943#endif
2944#if EV_USE_LINUXAIO
2945# include "ev_linuxaio.c"
2946#endif
2947#if EV_USE_IOURING
2948# include "ev_iouring.c"
2949#endif
2174#if EV_USE_POLL 2950#if EV_USE_POLL
2175# include "ev_poll.c" 2951# include "ev_poll.c"
2176#endif 2952#endif
2177#if EV_USE_SELECT 2953#if EV_USE_SELECT
2178# include "ev_select.c" 2954# include "ev_select.c"
2179#endif 2955#endif
2180 2956
2181int ecb_cold 2957ecb_cold int
2182ev_version_major (void) EV_THROW 2958ev_version_major (void) EV_NOEXCEPT
2183{ 2959{
2184 return EV_VERSION_MAJOR; 2960 return EV_VERSION_MAJOR;
2185} 2961}
2186 2962
2187int ecb_cold 2963ecb_cold int
2188ev_version_minor (void) EV_THROW 2964ev_version_minor (void) EV_NOEXCEPT
2189{ 2965{
2190 return EV_VERSION_MINOR; 2966 return EV_VERSION_MINOR;
2191} 2967}
2192 2968
2193/* return true if we are running with elevated privileges and should ignore env variables */ 2969/* return true if we are running with elevated privileges and should ignore env variables */
2194int inline_size ecb_cold 2970inline_size ecb_cold int
2195enable_secure (void) 2971enable_secure (void)
2196{ 2972{
2197#ifdef _WIN32 2973#ifdef _WIN32
2198 return 0; 2974 return 0;
2199#else 2975#else
2200 return getuid () != geteuid () 2976 return getuid () != geteuid ()
2201 || getgid () != getegid (); 2977 || getgid () != getegid ();
2202#endif 2978#endif
2203} 2979}
2204 2980
2205unsigned int ecb_cold 2981ecb_cold
2982unsigned int
2206ev_supported_backends (void) EV_THROW 2983ev_supported_backends (void) EV_NOEXCEPT
2207{ 2984{
2208 unsigned int flags = 0; 2985 unsigned int flags = 0;
2209 2986
2210 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2987 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2211 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2988 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2212 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2989 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2990 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2991 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2213 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2992 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2214 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2993 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2215 2994
2216 return flags; 2995 return flags;
2217} 2996}
2218 2997
2219unsigned int ecb_cold 2998ecb_cold
2999unsigned int
2220ev_recommended_backends (void) EV_THROW 3000ev_recommended_backends (void) EV_NOEXCEPT
2221{ 3001{
2222 unsigned int flags = ev_supported_backends (); 3002 unsigned int flags = ev_supported_backends ();
2223 3003
2224#ifndef __NetBSD__ 3004#ifndef __NetBSD__
2225 /* kqueue is borked on everything but netbsd apparently */ 3005 /* kqueue is borked on everything but netbsd apparently */
… …
2233#endif 3013#endif
2234#ifdef __FreeBSD__ 3014#ifdef __FreeBSD__
2235 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 3015 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2236#endif 3016#endif
2237 3017
3018 /* TODO: linuxaio is very experimental */
3019#if !EV_RECOMMEND_LINUXAIO
3020 flags &= ~EVBACKEND_LINUXAIO;
3021#endif
3022 /* TODO: linuxaio is super experimental */
3023#if !EV_RECOMMEND_IOURING
3024 flags &= ~EVBACKEND_IOURING;
3025#endif
3026
2238 return flags; 3027 return flags;
2239} 3028}
2240 3029
2241unsigned int ecb_cold 3030ecb_cold
3031unsigned int
2242ev_embeddable_backends (void) EV_THROW 3032ev_embeddable_backends (void) EV_NOEXCEPT
2243{ 3033{
2244 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3034 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2245 3035
2246 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3036 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2247 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 3037 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2248 flags &= ~EVBACKEND_EPOLL; 3038 flags &= ~EVBACKEND_EPOLL;
2249 3039
3040 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3041
3042 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
3043 * because our backend_fd is the epoll fd we need as fallback.
3044 * if the kernel ever is fixed, this might change...
3045 */
3046
2250 return flags; 3047 return flags;
2251} 3048}
2252 3049
2253unsigned int 3050unsigned int
2254ev_backend (EV_P) EV_THROW 3051ev_backend (EV_P) EV_NOEXCEPT
2255{ 3052{
2256 return backend; 3053 return backend;
2257} 3054}
2258 3055
2259#if EV_FEATURE_API 3056#if EV_FEATURE_API
2260unsigned int 3057unsigned int
2261ev_iteration (EV_P) EV_THROW 3058ev_iteration (EV_P) EV_NOEXCEPT
2262{ 3059{
2263 return loop_count; 3060 return loop_count;
2264} 3061}
2265 3062
2266unsigned int 3063unsigned int
2267ev_depth (EV_P) EV_THROW 3064ev_depth (EV_P) EV_NOEXCEPT
2268{ 3065{
2269 return loop_depth; 3066 return loop_depth;
2270} 3067}
2271 3068
2272void 3069void
2273ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3070ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2274{ 3071{
2275 io_blocktime = interval; 3072 io_blocktime = interval;
2276} 3073}
2277 3074
2278void 3075void
2279ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3076ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2280{ 3077{
2281 timeout_blocktime = interval; 3078 timeout_blocktime = interval;
2282} 3079}
2283 3080
2284void 3081void
2285ev_set_userdata (EV_P_ void *data) EV_THROW 3082ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2286{ 3083{
2287 userdata = data; 3084 userdata = data;
2288} 3085}
2289 3086
2290void * 3087void *
2291ev_userdata (EV_P) EV_THROW 3088ev_userdata (EV_P) EV_NOEXCEPT
2292{ 3089{
2293 return userdata; 3090 return userdata;
2294} 3091}
2295 3092
2296void 3093void
2297ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 3094ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2298{ 3095{
2299 invoke_cb = invoke_pending_cb; 3096 invoke_cb = invoke_pending_cb;
2300} 3097}
2301 3098
2302void 3099void
2303ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3100ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2304{ 3101{
2305 release_cb = release; 3102 release_cb = release;
2306 acquire_cb = acquire; 3103 acquire_cb = acquire;
2307} 3104}
2308#endif 3105#endif
2309 3106
2310/* initialise a loop structure, must be zero-initialised */ 3107/* initialise a loop structure, must be zero-initialised */
2311static void noinline ecb_cold 3108ecb_noinline ecb_cold
3109static void
2312loop_init (EV_P_ unsigned int flags) EV_THROW 3110loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2313{ 3111{
2314 if (!backend) 3112 if (!backend)
2315 { 3113 {
2316 origflags = flags; 3114 origflags = flags;
2317 3115
… …
2370 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3168 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2371#endif 3169#endif
2372#if EV_USE_SIGNALFD 3170#if EV_USE_SIGNALFD
2373 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3171 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2374#endif 3172#endif
3173#if EV_USE_TIMERFD
3174 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3175#endif
2375 3176
2376 if (!(flags & EVBACKEND_MASK)) 3177 if (!(flags & EVBACKEND_MASK))
2377 flags |= ev_recommended_backends (); 3178 flags |= ev_recommended_backends ();
2378 3179
2379#if EV_USE_IOCP 3180#if EV_USE_IOCP
2380 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3181 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2381#endif 3182#endif
2382#if EV_USE_PORT 3183#if EV_USE_PORT
2383 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3184 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2384#endif 3185#endif
2385#if EV_USE_KQUEUE 3186#if EV_USE_KQUEUE
2386 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3187 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3188#endif
3189#if EV_USE_IOURING
3190 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3191#endif
3192#if EV_USE_LINUXAIO
3193 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2387#endif 3194#endif
2388#if EV_USE_EPOLL 3195#if EV_USE_EPOLL
2389 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3196 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2390#endif 3197#endif
2391#if EV_USE_POLL 3198#if EV_USE_POLL
2392 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3199 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2393#endif 3200#endif
2394#if EV_USE_SELECT 3201#if EV_USE_SELECT
2395 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3202 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2396#endif 3203#endif
2397 3204
2398 ev_prepare_init (&pending_w, pendingcb); 3205 ev_prepare_init (&pending_w, pendingcb);
2399 3206
2400#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3207#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2403#endif 3210#endif
2404 } 3211 }
2405} 3212}
2406 3213
2407/* free up a loop structure */ 3214/* free up a loop structure */
2408void ecb_cold 3215ecb_cold
3216void
2409ev_loop_destroy (EV_P) 3217ev_loop_destroy (EV_P)
2410{ 3218{
2411 int i; 3219 int i;
2412 3220
2413#if EV_MULTIPLICITY 3221#if EV_MULTIPLICITY
… …
2416 return; 3224 return;
2417#endif 3225#endif
2418 3226
2419#if EV_CLEANUP_ENABLE 3227#if EV_CLEANUP_ENABLE
2420 /* queue cleanup watchers (and execute them) */ 3228 /* queue cleanup watchers (and execute them) */
2421 if (expect_false (cleanupcnt)) 3229 if (ecb_expect_false (cleanupcnt))
2422 { 3230 {
2423 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3231 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2424 EV_INVOKE_PENDING; 3232 EV_INVOKE_PENDING;
2425 } 3233 }
2426#endif 3234#endif
… …
2445#if EV_USE_SIGNALFD 3253#if EV_USE_SIGNALFD
2446 if (ev_is_active (&sigfd_w)) 3254 if (ev_is_active (&sigfd_w))
2447 close (sigfd); 3255 close (sigfd);
2448#endif 3256#endif
2449 3257
3258#if EV_USE_TIMERFD
3259 if (ev_is_active (&timerfd_w))
3260 close (timerfd);
3261#endif
3262
2450#if EV_USE_INOTIFY 3263#if EV_USE_INOTIFY
2451 if (fs_fd >= 0) 3264 if (fs_fd >= 0)
2452 close (fs_fd); 3265 close (fs_fd);
2453#endif 3266#endif
2454 3267
2455 if (backend_fd >= 0) 3268 if (backend_fd >= 0)
2456 close (backend_fd); 3269 close (backend_fd);
2457 3270
2458#if EV_USE_IOCP 3271#if EV_USE_IOCP
2459 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3272 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2460#endif 3273#endif
2461#if EV_USE_PORT 3274#if EV_USE_PORT
2462 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3275 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2463#endif 3276#endif
2464#if EV_USE_KQUEUE 3277#if EV_USE_KQUEUE
2465 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3278 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3279#endif
3280#if EV_USE_IOURING
3281 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3282#endif
3283#if EV_USE_LINUXAIO
3284 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2466#endif 3285#endif
2467#if EV_USE_EPOLL 3286#if EV_USE_EPOLL
2468 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3287 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2469#endif 3288#endif
2470#if EV_USE_POLL 3289#if EV_USE_POLL
2471 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3290 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2472#endif 3291#endif
2473#if EV_USE_SELECT 3292#if EV_USE_SELECT
2474 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3293 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2475#endif 3294#endif
2476 3295
2477 for (i = NUMPRI; i--; ) 3296 for (i = NUMPRI; i--; )
2478 { 3297 {
2479 array_free (pending, [i]); 3298 array_free (pending, [i]);
… …
2521 3340
2522inline_size void 3341inline_size void
2523loop_fork (EV_P) 3342loop_fork (EV_P)
2524{ 3343{
2525#if EV_USE_PORT 3344#if EV_USE_PORT
2526 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3345 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2527#endif 3346#endif
2528#if EV_USE_KQUEUE 3347#if EV_USE_KQUEUE
2529 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3348 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3349#endif
3350#if EV_USE_IOURING
3351 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3352#endif
3353#if EV_USE_LINUXAIO
3354 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2530#endif 3355#endif
2531#if EV_USE_EPOLL 3356#if EV_USE_EPOLL
2532 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3357 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2533#endif 3358#endif
2534#if EV_USE_INOTIFY 3359#if EV_USE_INOTIFY
2535 infy_fork (EV_A); 3360 infy_fork (EV_A);
2536#endif 3361#endif
2537 3362
3363 if (postfork != 2)
3364 {
3365 #if EV_USE_SIGNALFD
3366 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3367 #endif
3368
3369 #if EV_USE_TIMERFD
3370 if (ev_is_active (&timerfd_w))
3371 {
3372 ev_ref (EV_A);
3373 ev_io_stop (EV_A_ &timerfd_w);
3374
3375 close (timerfd);
3376 timerfd = -2;
3377
3378 evtimerfd_init (EV_A);
3379 /* reschedule periodics, in case we missed something */
3380 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3381 }
3382 #endif
3383
2538#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3384 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2539 if (ev_is_active (&pipe_w)) 3385 if (ev_is_active (&pipe_w))
2540 { 3386 {
2541 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3387 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2542 3388
2543 ev_ref (EV_A); 3389 ev_ref (EV_A);
2544 ev_io_stop (EV_A_ &pipe_w); 3390 ev_io_stop (EV_A_ &pipe_w);
2545 3391
2546 if (evpipe [0] >= 0) 3392 if (evpipe [0] >= 0)
2547 EV_WIN32_CLOSE_FD (evpipe [0]); 3393 EV_WIN32_CLOSE_FD (evpipe [0]);
2548 3394
2549 evpipe_init (EV_A); 3395 evpipe_init (EV_A);
2550 /* iterate over everything, in case we missed something before */ 3396 /* iterate over everything, in case we missed something before */
2551 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3397 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3398 }
3399 #endif
2552 } 3400 }
2553#endif
2554 3401
2555 postfork = 0; 3402 postfork = 0;
2556} 3403}
2557 3404
2558#if EV_MULTIPLICITY 3405#if EV_MULTIPLICITY
2559 3406
3407ecb_cold
2560struct ev_loop * ecb_cold 3408struct ev_loop *
2561ev_loop_new (unsigned int flags) EV_THROW 3409ev_loop_new (unsigned int flags) EV_NOEXCEPT
2562{ 3410{
2563 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3411 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2564 3412
2565 memset (EV_A, 0, sizeof (struct ev_loop)); 3413 memset (EV_A, 0, sizeof (struct ev_loop));
2566 loop_init (EV_A_ flags); 3414 loop_init (EV_A_ flags);
… …
2573} 3421}
2574 3422
2575#endif /* multiplicity */ 3423#endif /* multiplicity */
2576 3424
2577#if EV_VERIFY 3425#if EV_VERIFY
2578static void noinline ecb_cold 3426ecb_noinline ecb_cold
3427static void
2579verify_watcher (EV_P_ W w) 3428verify_watcher (EV_P_ W w)
2580{ 3429{
2581 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3430 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2582 3431
2583 if (w->pending) 3432 if (w->pending)
2584 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3433 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2585} 3434}
2586 3435
2587static void noinline ecb_cold 3436ecb_noinline ecb_cold
3437static void
2588verify_heap (EV_P_ ANHE *heap, int N) 3438verify_heap (EV_P_ ANHE *heap, int N)
2589{ 3439{
2590 int i; 3440 int i;
2591 3441
2592 for (i = HEAP0; i < N + HEAP0; ++i) 3442 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2597 3447
2598 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3448 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2599 } 3449 }
2600} 3450}
2601 3451
2602static void noinline ecb_cold 3452ecb_noinline ecb_cold
3453static void
2603array_verify (EV_P_ W *ws, int cnt) 3454array_verify (EV_P_ W *ws, int cnt)
2604{ 3455{
2605 while (cnt--) 3456 while (cnt--)
2606 { 3457 {
2607 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3458 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2610} 3461}
2611#endif 3462#endif
2612 3463
2613#if EV_FEATURE_API 3464#if EV_FEATURE_API
2614void ecb_cold 3465void ecb_cold
2615ev_verify (EV_P) EV_THROW 3466ev_verify (EV_P) EV_NOEXCEPT
2616{ 3467{
2617#if EV_VERIFY 3468#if EV_VERIFY
2618 int i; 3469 int i;
2619 WL w, w2; 3470 WL w, w2;
2620 3471
… …
2696#endif 3547#endif
2697} 3548}
2698#endif 3549#endif
2699 3550
2700#if EV_MULTIPLICITY 3551#if EV_MULTIPLICITY
3552ecb_cold
2701struct ev_loop * ecb_cold 3553struct ev_loop *
2702#else 3554#else
2703int 3555int
2704#endif 3556#endif
2705ev_default_loop (unsigned int flags) EV_THROW 3557ev_default_loop (unsigned int flags) EV_NOEXCEPT
2706{ 3558{
2707 if (!ev_default_loop_ptr) 3559 if (!ev_default_loop_ptr)
2708 { 3560 {
2709#if EV_MULTIPLICITY 3561#if EV_MULTIPLICITY
2710 EV_P = ev_default_loop_ptr = &default_loop_struct; 3562 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2729 3581
2730 return ev_default_loop_ptr; 3582 return ev_default_loop_ptr;
2731} 3583}
2732 3584
2733void 3585void
2734ev_loop_fork (EV_P) EV_THROW 3586ev_loop_fork (EV_P) EV_NOEXCEPT
2735{ 3587{
2736 postfork = 1; 3588 postfork = 1;
2737} 3589}
2738 3590
2739/*****************************************************************************/ 3591/*****************************************************************************/
… …
2743{ 3595{
2744 EV_CB_INVOKE ((W)w, revents); 3596 EV_CB_INVOKE ((W)w, revents);
2745} 3597}
2746 3598
2747unsigned int 3599unsigned int
2748ev_pending_count (EV_P) EV_THROW 3600ev_pending_count (EV_P) EV_NOEXCEPT
2749{ 3601{
2750 int pri; 3602 int pri;
2751 unsigned int count = 0; 3603 unsigned int count = 0;
2752 3604
2753 for (pri = NUMPRI; pri--; ) 3605 for (pri = NUMPRI; pri--; )
2754 count += pendingcnt [pri]; 3606 count += pendingcnt [pri];
2755 3607
2756 return count; 3608 return count;
2757} 3609}
2758 3610
2759void noinline 3611ecb_noinline
3612void
2760ev_invoke_pending (EV_P) 3613ev_invoke_pending (EV_P)
2761{ 3614{
2762 pendingpri = NUMPRI; 3615 pendingpri = NUMPRI;
2763 3616
2764 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3617 do
2765 { 3618 {
2766 --pendingpri; 3619 --pendingpri;
2767 3620
3621 /* pendingpri possibly gets modified in the inner loop */
2768 while (pendingcnt [pendingpri]) 3622 while (pendingcnt [pendingpri])
2769 { 3623 {
2770 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3624 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2771 3625
2772 p->w->pending = 0; 3626 p->w->pending = 0;
2773 EV_CB_INVOKE (p->w, p->events); 3627 EV_CB_INVOKE (p->w, p->events);
2774 EV_FREQUENT_CHECK; 3628 EV_FREQUENT_CHECK;
2775 } 3629 }
2776 } 3630 }
3631 while (pendingpri);
2777} 3632}
2778 3633
2779#if EV_IDLE_ENABLE 3634#if EV_IDLE_ENABLE
2780/* make idle watchers pending. this handles the "call-idle */ 3635/* make idle watchers pending. this handles the "call-idle */
2781/* only when higher priorities are idle" logic */ 3636/* only when higher priorities are idle" logic */
2782inline_size void 3637inline_size void
2783idle_reify (EV_P) 3638idle_reify (EV_P)
2784{ 3639{
2785 if (expect_false (idleall)) 3640 if (ecb_expect_false (idleall))
2786 { 3641 {
2787 int pri; 3642 int pri;
2788 3643
2789 for (pri = NUMPRI; pri--; ) 3644 for (pri = NUMPRI; pri--; )
2790 { 3645 {
… …
2820 { 3675 {
2821 ev_at (w) += w->repeat; 3676 ev_at (w) += w->repeat;
2822 if (ev_at (w) < mn_now) 3677 if (ev_at (w) < mn_now)
2823 ev_at (w) = mn_now; 3678 ev_at (w) = mn_now;
2824 3679
2825 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3680 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
2826 3681
2827 ANHE_at_cache (timers [HEAP0]); 3682 ANHE_at_cache (timers [HEAP0]);
2828 downheap (timers, timercnt, HEAP0); 3683 downheap (timers, timercnt, HEAP0);
2829 } 3684 }
2830 else 3685 else
… …
2839 } 3694 }
2840} 3695}
2841 3696
2842#if EV_PERIODIC_ENABLE 3697#if EV_PERIODIC_ENABLE
2843 3698
2844static void noinline 3699ecb_noinline
3700static void
2845periodic_recalc (EV_P_ ev_periodic *w) 3701periodic_recalc (EV_P_ ev_periodic *w)
2846{ 3702{
2847 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3703 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2848 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3704 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2849 3705
… …
2851 while (at <= ev_rt_now) 3707 while (at <= ev_rt_now)
2852 { 3708 {
2853 ev_tstamp nat = at + w->interval; 3709 ev_tstamp nat = at + w->interval;
2854 3710
2855 /* when resolution fails us, we use ev_rt_now */ 3711 /* when resolution fails us, we use ev_rt_now */
2856 if (expect_false (nat == at)) 3712 if (ecb_expect_false (nat == at))
2857 { 3713 {
2858 at = ev_rt_now; 3714 at = ev_rt_now;
2859 break; 3715 break;
2860 } 3716 }
2861 3717
… …
2907 } 3763 }
2908} 3764}
2909 3765
2910/* simply recalculate all periodics */ 3766/* simply recalculate all periodics */
2911/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3767/* TODO: maybe ensure that at least one event happens when jumping forward? */
2912static void noinline ecb_cold 3768ecb_noinline ecb_cold
3769static void
2913periodics_reschedule (EV_P) 3770periodics_reschedule (EV_P)
2914{ 3771{
2915 int i; 3772 int i;
2916 3773
2917 /* adjust periodics after time jump */ 3774 /* adjust periodics after time jump */
… …
2930 reheap (periodics, periodiccnt); 3787 reheap (periodics, periodiccnt);
2931} 3788}
2932#endif 3789#endif
2933 3790
2934/* adjust all timers by a given offset */ 3791/* adjust all timers by a given offset */
2935static void noinline ecb_cold 3792ecb_noinline ecb_cold
3793static void
2936timers_reschedule (EV_P_ ev_tstamp adjust) 3794timers_reschedule (EV_P_ ev_tstamp adjust)
2937{ 3795{
2938 int i; 3796 int i;
2939 3797
2940 for (i = 0; i < timercnt; ++i) 3798 for (i = 0; i < timercnt; ++i)
… …
2949/* also detect if there was a timejump, and act accordingly */ 3807/* also detect if there was a timejump, and act accordingly */
2950inline_speed void 3808inline_speed void
2951time_update (EV_P_ ev_tstamp max_block) 3809time_update (EV_P_ ev_tstamp max_block)
2952{ 3810{
2953#if EV_USE_MONOTONIC 3811#if EV_USE_MONOTONIC
2954 if (expect_true (have_monotonic)) 3812 if (ecb_expect_true (have_monotonic))
2955 { 3813 {
2956 int i; 3814 int i;
2957 ev_tstamp odiff = rtmn_diff; 3815 ev_tstamp odiff = rtmn_diff;
2958 3816
2959 mn_now = get_clock (); 3817 mn_now = get_clock ();
2960 3818
2961 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3819 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
2962 /* interpolate in the meantime */ 3820 /* interpolate in the meantime */
2963 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3821 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
2964 { 3822 {
2965 ev_rt_now = rtmn_diff + mn_now; 3823 ev_rt_now = rtmn_diff + mn_now;
2966 return; 3824 return;
2967 } 3825 }
2968 3826
… …
2982 ev_tstamp diff; 3840 ev_tstamp diff;
2983 rtmn_diff = ev_rt_now - mn_now; 3841 rtmn_diff = ev_rt_now - mn_now;
2984 3842
2985 diff = odiff - rtmn_diff; 3843 diff = odiff - rtmn_diff;
2986 3844
2987 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3845 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
2988 return; /* all is well */ 3846 return; /* all is well */
2989 3847
2990 ev_rt_now = ev_time (); 3848 ev_rt_now = ev_time ();
2991 mn_now = get_clock (); 3849 mn_now = get_clock ();
2992 now_floor = mn_now; 3850 now_floor = mn_now;
… …
3001 else 3859 else
3002#endif 3860#endif
3003 { 3861 {
3004 ev_rt_now = ev_time (); 3862 ev_rt_now = ev_time ();
3005 3863
3006 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3864 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3007 { 3865 {
3008 /* adjust timers. this is easy, as the offset is the same for all of them */ 3866 /* adjust timers. this is easy, as the offset is the same for all of them */
3009 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3867 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3010#if EV_PERIODIC_ENABLE 3868#if EV_PERIODIC_ENABLE
3011 periodics_reschedule (EV_A); 3869 periodics_reschedule (EV_A);
… …
3034#if EV_VERIFY >= 2 3892#if EV_VERIFY >= 2
3035 ev_verify (EV_A); 3893 ev_verify (EV_A);
3036#endif 3894#endif
3037 3895
3038#ifndef _WIN32 3896#ifndef _WIN32
3039 if (expect_false (curpid)) /* penalise the forking check even more */ 3897 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3040 if (expect_false (getpid () != curpid)) 3898 if (ecb_expect_false (getpid () != curpid))
3041 { 3899 {
3042 curpid = getpid (); 3900 curpid = getpid ();
3043 postfork = 1; 3901 postfork = 1;
3044 } 3902 }
3045#endif 3903#endif
3046 3904
3047#if EV_FORK_ENABLE 3905#if EV_FORK_ENABLE
3048 /* we might have forked, so queue fork handlers */ 3906 /* we might have forked, so queue fork handlers */
3049 if (expect_false (postfork)) 3907 if (ecb_expect_false (postfork))
3050 if (forkcnt) 3908 if (forkcnt)
3051 { 3909 {
3052 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3910 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3053 EV_INVOKE_PENDING; 3911 EV_INVOKE_PENDING;
3054 } 3912 }
3055#endif 3913#endif
3056 3914
3057#if EV_PREPARE_ENABLE 3915#if EV_PREPARE_ENABLE
3058 /* queue prepare watchers (and execute them) */ 3916 /* queue prepare watchers (and execute them) */
3059 if (expect_false (preparecnt)) 3917 if (ecb_expect_false (preparecnt))
3060 { 3918 {
3061 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3919 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3062 EV_INVOKE_PENDING; 3920 EV_INVOKE_PENDING;
3063 } 3921 }
3064#endif 3922#endif
3065 3923
3066 if (expect_false (loop_done)) 3924 if (ecb_expect_false (loop_done))
3067 break; 3925 break;
3068 3926
3069 /* we might have forked, so reify kernel state if necessary */ 3927 /* we might have forked, so reify kernel state if necessary */
3070 if (expect_false (postfork)) 3928 if (ecb_expect_false (postfork))
3071 loop_fork (EV_A); 3929 loop_fork (EV_A);
3072 3930
3073 /* update fd-related kernel structures */ 3931 /* update fd-related kernel structures */
3074 fd_reify (EV_A); 3932 fd_reify (EV_A);
3075 3933
… …
3080 3938
3081 /* remember old timestamp for io_blocktime calculation */ 3939 /* remember old timestamp for io_blocktime calculation */
3082 ev_tstamp prev_mn_now = mn_now; 3940 ev_tstamp prev_mn_now = mn_now;
3083 3941
3084 /* update time to cancel out callback processing overhead */ 3942 /* update time to cancel out callback processing overhead */
3085 time_update (EV_A_ 1e100); 3943 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3086 3944
3087 /* from now on, we want a pipe-wake-up */ 3945 /* from now on, we want a pipe-wake-up */
3088 pipe_write_wanted = 1; 3946 pipe_write_wanted = 1;
3089 3947
3090 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3948 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3091 3949
3092 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3950 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3093 { 3951 {
3094 waittime = MAX_BLOCKTIME; 3952 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3095 3953
3096 if (timercnt) 3954 if (timercnt)
3097 { 3955 {
3098 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3956 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3099 if (waittime > to) waittime = to; 3957 if (waittime > to) waittime = to;
… …
3106 if (waittime > to) waittime = to; 3964 if (waittime > to) waittime = to;
3107 } 3965 }
3108#endif 3966#endif
3109 3967
3110 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3968 /* don't let timeouts decrease the waittime below timeout_blocktime */
3111 if (expect_false (waittime < timeout_blocktime)) 3969 if (ecb_expect_false (waittime < timeout_blocktime))
3112 waittime = timeout_blocktime; 3970 waittime = timeout_blocktime;
3113 3971
3114 /* at this point, we NEED to wait, so we have to ensure */ 3972 /* now there are two more special cases left, either we have
3115 /* to pass a minimum nonzero value to the backend */ 3973 * already-expired timers, so we should not sleep, or we have timers
3974 * that expire very soon, in which case we need to wait for a minimum
3975 * amount of time for some event loop backends.
3976 */
3116 if (expect_false (waittime < backend_mintime)) 3977 if (ecb_expect_false (waittime < backend_mintime))
3978 waittime = waittime <= EV_TS_CONST (0.)
3979 ? EV_TS_CONST (0.)
3117 waittime = backend_mintime; 3980 : backend_mintime;
3118 3981
3119 /* extra check because io_blocktime is commonly 0 */ 3982 /* extra check because io_blocktime is commonly 0 */
3120 if (expect_false (io_blocktime)) 3983 if (ecb_expect_false (io_blocktime))
3121 { 3984 {
3122 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3985 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3123 3986
3124 if (sleeptime > waittime - backend_mintime) 3987 if (sleeptime > waittime - backend_mintime)
3125 sleeptime = waittime - backend_mintime; 3988 sleeptime = waittime - backend_mintime;
3126 3989
3127 if (expect_true (sleeptime > 0.)) 3990 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3128 { 3991 {
3129 ev_sleep (sleeptime); 3992 ev_sleep (sleeptime);
3130 waittime -= sleeptime; 3993 waittime -= sleeptime;
3131 } 3994 }
3132 } 3995 }
… …
3146 { 4009 {
3147 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4010 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3148 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4011 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3149 } 4012 }
3150 4013
3151
3152 /* update ev_rt_now, do magic */ 4014 /* update ev_rt_now, do magic */
3153 time_update (EV_A_ waittime + sleeptime); 4015 time_update (EV_A_ waittime + sleeptime);
3154 } 4016 }
3155 4017
3156 /* queue pending timers and reschedule them */ 4018 /* queue pending timers and reschedule them */
… …
3164 idle_reify (EV_A); 4026 idle_reify (EV_A);
3165#endif 4027#endif
3166 4028
3167#if EV_CHECK_ENABLE 4029#if EV_CHECK_ENABLE
3168 /* queue check watchers, to be executed first */ 4030 /* queue check watchers, to be executed first */
3169 if (expect_false (checkcnt)) 4031 if (ecb_expect_false (checkcnt))
3170 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4032 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3171#endif 4033#endif
3172 4034
3173 EV_INVOKE_PENDING; 4035 EV_INVOKE_PENDING;
3174 } 4036 }
3175 while (expect_true ( 4037 while (ecb_expect_true (
3176 activecnt 4038 activecnt
3177 && !loop_done 4039 && !loop_done
3178 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4040 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3179 )); 4041 ));
3180 4042
… …
3187 4049
3188 return activecnt; 4050 return activecnt;
3189} 4051}
3190 4052
3191void 4053void
3192ev_break (EV_P_ int how) EV_THROW 4054ev_break (EV_P_ int how) EV_NOEXCEPT
3193{ 4055{
3194 loop_done = how; 4056 loop_done = how;
3195} 4057}
3196 4058
3197void 4059void
3198ev_ref (EV_P) EV_THROW 4060ev_ref (EV_P) EV_NOEXCEPT
3199{ 4061{
3200 ++activecnt; 4062 ++activecnt;
3201} 4063}
3202 4064
3203void 4065void
3204ev_unref (EV_P) EV_THROW 4066ev_unref (EV_P) EV_NOEXCEPT
3205{ 4067{
3206 --activecnt; 4068 --activecnt;
3207} 4069}
3208 4070
3209void 4071void
3210ev_now_update (EV_P) EV_THROW 4072ev_now_update (EV_P) EV_NOEXCEPT
3211{ 4073{
3212 time_update (EV_A_ 1e100); 4074 time_update (EV_A_ EV_TSTAMP_HUGE);
3213} 4075}
3214 4076
3215void 4077void
3216ev_suspend (EV_P) EV_THROW 4078ev_suspend (EV_P) EV_NOEXCEPT
3217{ 4079{
3218 ev_now_update (EV_A); 4080 ev_now_update (EV_A);
3219} 4081}
3220 4082
3221void 4083void
3222ev_resume (EV_P) EV_THROW 4084ev_resume (EV_P) EV_NOEXCEPT
3223{ 4085{
3224 ev_tstamp mn_prev = mn_now; 4086 ev_tstamp mn_prev = mn_now;
3225 4087
3226 ev_now_update (EV_A); 4088 ev_now_update (EV_A);
3227 timers_reschedule (EV_A_ mn_now - mn_prev); 4089 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3244inline_size void 4106inline_size void
3245wlist_del (WL *head, WL elem) 4107wlist_del (WL *head, WL elem)
3246{ 4108{
3247 while (*head) 4109 while (*head)
3248 { 4110 {
3249 if (expect_true (*head == elem)) 4111 if (ecb_expect_true (*head == elem))
3250 { 4112 {
3251 *head = elem->next; 4113 *head = elem->next;
3252 break; 4114 break;
3253 } 4115 }
3254 4116
… …
3266 w->pending = 0; 4128 w->pending = 0;
3267 } 4129 }
3268} 4130}
3269 4131
3270int 4132int
3271ev_clear_pending (EV_P_ void *w) EV_THROW 4133ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3272{ 4134{
3273 W w_ = (W)w; 4135 W w_ = (W)w;
3274 int pending = w_->pending; 4136 int pending = w_->pending;
3275 4137
3276 if (expect_true (pending)) 4138 if (ecb_expect_true (pending))
3277 { 4139 {
3278 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4140 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3279 p->w = (W)&pending_w; 4141 p->w = (W)&pending_w;
3280 w_->pending = 0; 4142 w_->pending = 0;
3281 return p->events; 4143 return p->events;
… …
3308 w->active = 0; 4170 w->active = 0;
3309} 4171}
3310 4172
3311/*****************************************************************************/ 4173/*****************************************************************************/
3312 4174
3313void noinline 4175ecb_noinline
4176void
3314ev_io_start (EV_P_ ev_io *w) EV_THROW 4177ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3315{ 4178{
3316 int fd = w->fd; 4179 int fd = w->fd;
3317 4180
3318 if (expect_false (ev_is_active (w))) 4181 if (ecb_expect_false (ev_is_active (w)))
3319 return; 4182 return;
3320 4183
3321 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4184 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3322 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4185 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3323 4186
4187#if EV_VERIFY >= 2
4188 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4189#endif
3324 EV_FREQUENT_CHECK; 4190 EV_FREQUENT_CHECK;
3325 4191
3326 ev_start (EV_A_ (W)w, 1); 4192 ev_start (EV_A_ (W)w, 1);
3327 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4193 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3328 wlist_add (&anfds[fd].head, (WL)w); 4194 wlist_add (&anfds[fd].head, (WL)w);
3329 4195
3330 /* common bug, apparently */ 4196 /* common bug, apparently */
3331 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4197 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3332 4198
… …
3334 w->events &= ~EV__IOFDSET; 4200 w->events &= ~EV__IOFDSET;
3335 4201
3336 EV_FREQUENT_CHECK; 4202 EV_FREQUENT_CHECK;
3337} 4203}
3338 4204
3339void noinline 4205ecb_noinline
4206void
3340ev_io_stop (EV_P_ ev_io *w) EV_THROW 4207ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3341{ 4208{
3342 clear_pending (EV_A_ (W)w); 4209 clear_pending (EV_A_ (W)w);
3343 if (expect_false (!ev_is_active (w))) 4210 if (ecb_expect_false (!ev_is_active (w)))
3344 return; 4211 return;
3345 4212
3346 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4213 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3347 4214
4215#if EV_VERIFY >= 2
4216 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4217#endif
3348 EV_FREQUENT_CHECK; 4218 EV_FREQUENT_CHECK;
3349 4219
3350 wlist_del (&anfds[w->fd].head, (WL)w); 4220 wlist_del (&anfds[w->fd].head, (WL)w);
3351 ev_stop (EV_A_ (W)w); 4221 ev_stop (EV_A_ (W)w);
3352 4222
3353 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4223 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3354 4224
3355 EV_FREQUENT_CHECK; 4225 EV_FREQUENT_CHECK;
3356} 4226}
3357 4227
3358void noinline 4228ecb_noinline
4229void
3359ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4230ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3360{ 4231{
3361 if (expect_false (ev_is_active (w))) 4232 if (ecb_expect_false (ev_is_active (w)))
3362 return; 4233 return;
3363 4234
3364 ev_at (w) += mn_now; 4235 ev_at (w) += mn_now;
3365 4236
3366 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4237 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3367 4238
3368 EV_FREQUENT_CHECK; 4239 EV_FREQUENT_CHECK;
3369 4240
3370 ++timercnt; 4241 ++timercnt;
3371 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4242 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3372 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4243 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3373 ANHE_w (timers [ev_active (w)]) = (WT)w; 4244 ANHE_w (timers [ev_active (w)]) = (WT)w;
3374 ANHE_at_cache (timers [ev_active (w)]); 4245 ANHE_at_cache (timers [ev_active (w)]);
3375 upheap (timers, ev_active (w)); 4246 upheap (timers, ev_active (w));
3376 4247
3377 EV_FREQUENT_CHECK; 4248 EV_FREQUENT_CHECK;
3378 4249
3379 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4250 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3380} 4251}
3381 4252
3382void noinline 4253ecb_noinline
4254void
3383ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4255ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3384{ 4256{
3385 clear_pending (EV_A_ (W)w); 4257 clear_pending (EV_A_ (W)w);
3386 if (expect_false (!ev_is_active (w))) 4258 if (ecb_expect_false (!ev_is_active (w)))
3387 return; 4259 return;
3388 4260
3389 EV_FREQUENT_CHECK; 4261 EV_FREQUENT_CHECK;
3390 4262
3391 { 4263 {
… …
3393 4265
3394 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4266 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3395 4267
3396 --timercnt; 4268 --timercnt;
3397 4269
3398 if (expect_true (active < timercnt + HEAP0)) 4270 if (ecb_expect_true (active < timercnt + HEAP0))
3399 { 4271 {
3400 timers [active] = timers [timercnt + HEAP0]; 4272 timers [active] = timers [timercnt + HEAP0];
3401 adjustheap (timers, timercnt, active); 4273 adjustheap (timers, timercnt, active);
3402 } 4274 }
3403 } 4275 }
… …
3407 ev_stop (EV_A_ (W)w); 4279 ev_stop (EV_A_ (W)w);
3408 4280
3409 EV_FREQUENT_CHECK; 4281 EV_FREQUENT_CHECK;
3410} 4282}
3411 4283
3412void noinline 4284ecb_noinline
4285void
3413ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4286ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3414{ 4287{
3415 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3416 4289
3417 clear_pending (EV_A_ (W)w); 4290 clear_pending (EV_A_ (W)w);
3418 4291
… …
3435 4308
3436 EV_FREQUENT_CHECK; 4309 EV_FREQUENT_CHECK;
3437} 4310}
3438 4311
3439ev_tstamp 4312ev_tstamp
3440ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4313ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3441{ 4314{
3442 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4315 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3443} 4316}
3444 4317
3445#if EV_PERIODIC_ENABLE 4318#if EV_PERIODIC_ENABLE
3446void noinline 4319ecb_noinline
4320void
3447ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4321ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3448{ 4322{
3449 if (expect_false (ev_is_active (w))) 4323 if (ecb_expect_false (ev_is_active (w)))
3450 return; 4324 return;
4325
4326#if EV_USE_TIMERFD
4327 if (timerfd == -2)
4328 evtimerfd_init (EV_A);
4329#endif
3451 4330
3452 if (w->reschedule_cb) 4331 if (w->reschedule_cb)
3453 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4332 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3454 else if (w->interval) 4333 else if (w->interval)
3455 { 4334 {
… …
3461 4340
3462 EV_FREQUENT_CHECK; 4341 EV_FREQUENT_CHECK;
3463 4342
3464 ++periodiccnt; 4343 ++periodiccnt;
3465 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4344 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3466 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4345 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3467 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4346 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3468 ANHE_at_cache (periodics [ev_active (w)]); 4347 ANHE_at_cache (periodics [ev_active (w)]);
3469 upheap (periodics, ev_active (w)); 4348 upheap (periodics, ev_active (w));
3470 4349
3471 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
3472 4351
3473 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4352 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3474} 4353}
3475 4354
3476void noinline 4355ecb_noinline
4356void
3477ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4357ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3478{ 4358{
3479 clear_pending (EV_A_ (W)w); 4359 clear_pending (EV_A_ (W)w);
3480 if (expect_false (!ev_is_active (w))) 4360 if (ecb_expect_false (!ev_is_active (w)))
3481 return; 4361 return;
3482 4362
3483 EV_FREQUENT_CHECK; 4363 EV_FREQUENT_CHECK;
3484 4364
3485 { 4365 {
… …
3487 4367
3488 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4368 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3489 4369
3490 --periodiccnt; 4370 --periodiccnt;
3491 4371
3492 if (expect_true (active < periodiccnt + HEAP0)) 4372 if (ecb_expect_true (active < periodiccnt + HEAP0))
3493 { 4373 {
3494 periodics [active] = periodics [periodiccnt + HEAP0]; 4374 periodics [active] = periodics [periodiccnt + HEAP0];
3495 adjustheap (periodics, periodiccnt, active); 4375 adjustheap (periodics, periodiccnt, active);
3496 } 4376 }
3497 } 4377 }
… …
3499 ev_stop (EV_A_ (W)w); 4379 ev_stop (EV_A_ (W)w);
3500 4380
3501 EV_FREQUENT_CHECK; 4381 EV_FREQUENT_CHECK;
3502} 4382}
3503 4383
3504void noinline 4384ecb_noinline
4385void
3505ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4386ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3506{ 4387{
3507 /* TODO: use adjustheap and recalculation */ 4388 /* TODO: use adjustheap and recalculation */
3508 ev_periodic_stop (EV_A_ w); 4389 ev_periodic_stop (EV_A_ w);
3509 ev_periodic_start (EV_A_ w); 4390 ev_periodic_start (EV_A_ w);
3510} 4391}
… …
3514# define SA_RESTART 0 4395# define SA_RESTART 0
3515#endif 4396#endif
3516 4397
3517#if EV_SIGNAL_ENABLE 4398#if EV_SIGNAL_ENABLE
3518 4399
3519void noinline 4400ecb_noinline
4401void
3520ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4402ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3521{ 4403{
3522 if (expect_false (ev_is_active (w))) 4404 if (ecb_expect_false (ev_is_active (w)))
3523 return; 4405 return;
3524 4406
3525 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4407 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3526 4408
3527#if EV_MULTIPLICITY 4409#if EV_MULTIPLICITY
… …
3596 } 4478 }
3597 4479
3598 EV_FREQUENT_CHECK; 4480 EV_FREQUENT_CHECK;
3599} 4481}
3600 4482
3601void noinline 4483ecb_noinline
4484void
3602ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4485ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3603{ 4486{
3604 clear_pending (EV_A_ (W)w); 4487 clear_pending (EV_A_ (W)w);
3605 if (expect_false (!ev_is_active (w))) 4488 if (ecb_expect_false (!ev_is_active (w)))
3606 return; 4489 return;
3607 4490
3608 EV_FREQUENT_CHECK; 4491 EV_FREQUENT_CHECK;
3609 4492
3610 wlist_del (&signals [w->signum - 1].head, (WL)w); 4493 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3638#endif 4521#endif
3639 4522
3640#if EV_CHILD_ENABLE 4523#if EV_CHILD_ENABLE
3641 4524
3642void 4525void
3643ev_child_start (EV_P_ ev_child *w) EV_THROW 4526ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3644{ 4527{
3645#if EV_MULTIPLICITY 4528#if EV_MULTIPLICITY
3646 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4529 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3647#endif 4530#endif
3648 if (expect_false (ev_is_active (w))) 4531 if (ecb_expect_false (ev_is_active (w)))
3649 return; 4532 return;
3650 4533
3651 EV_FREQUENT_CHECK; 4534 EV_FREQUENT_CHECK;
3652 4535
3653 ev_start (EV_A_ (W)w, 1); 4536 ev_start (EV_A_ (W)w, 1);
… …
3655 4538
3656 EV_FREQUENT_CHECK; 4539 EV_FREQUENT_CHECK;
3657} 4540}
3658 4541
3659void 4542void
3660ev_child_stop (EV_P_ ev_child *w) EV_THROW 4543ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3661{ 4544{
3662 clear_pending (EV_A_ (W)w); 4545 clear_pending (EV_A_ (W)w);
3663 if (expect_false (!ev_is_active (w))) 4546 if (ecb_expect_false (!ev_is_active (w)))
3664 return; 4547 return;
3665 4548
3666 EV_FREQUENT_CHECK; 4549 EV_FREQUENT_CHECK;
3667 4550
3668 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4551 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3682 4565
3683#define DEF_STAT_INTERVAL 5.0074891 4566#define DEF_STAT_INTERVAL 5.0074891
3684#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4567#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3685#define MIN_STAT_INTERVAL 0.1074891 4568#define MIN_STAT_INTERVAL 0.1074891
3686 4569
3687static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4570ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3688 4571
3689#if EV_USE_INOTIFY 4572#if EV_USE_INOTIFY
3690 4573
3691/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4574/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3692# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4575# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3693 4576
3694static void noinline 4577ecb_noinline
4578static void
3695infy_add (EV_P_ ev_stat *w) 4579infy_add (EV_P_ ev_stat *w)
3696{ 4580{
3697 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); 4581 w->wd = inotify_add_watch (fs_fd, w->path,
4582 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4583 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4584 | IN_DONT_FOLLOW | IN_MASK_ADD);
3698 4585
3699 if (w->wd >= 0) 4586 if (w->wd >= 0)
3700 { 4587 {
3701 struct statfs sfs; 4588 struct statfs sfs;
3702 4589
… …
3706 4593
3707 if (!fs_2625) 4594 if (!fs_2625)
3708 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4595 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3709 else if (!statfs (w->path, &sfs) 4596 else if (!statfs (w->path, &sfs)
3710 && (sfs.f_type == 0x1373 /* devfs */ 4597 && (sfs.f_type == 0x1373 /* devfs */
4598 || sfs.f_type == 0x4006 /* fat */
4599 || sfs.f_type == 0x4d44 /* msdos */
3711 || sfs.f_type == 0xEF53 /* ext2/3 */ 4600 || sfs.f_type == 0xEF53 /* ext2/3 */
4601 || sfs.f_type == 0x72b6 /* jffs2 */
4602 || sfs.f_type == 0x858458f6 /* ramfs */
4603 || sfs.f_type == 0x5346544e /* ntfs */
3712 || sfs.f_type == 0x3153464a /* jfs */ 4604 || sfs.f_type == 0x3153464a /* jfs */
4605 || sfs.f_type == 0x9123683e /* btrfs */
3713 || sfs.f_type == 0x52654973 /* reiser3 */ 4606 || sfs.f_type == 0x52654973 /* reiser3 */
3714 || sfs.f_type == 0x01021994 /* tempfs */ 4607 || sfs.f_type == 0x01021994 /* tmpfs */
3715 || sfs.f_type == 0x58465342 /* xfs */)) 4608 || sfs.f_type == 0x58465342 /* xfs */))
3716 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4609 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3717 else 4610 else
3718 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4611 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3719 } 4612 }
… …
3754 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4647 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3755 ev_timer_again (EV_A_ &w->timer); 4648 ev_timer_again (EV_A_ &w->timer);
3756 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4649 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3757} 4650}
3758 4651
3759static void noinline 4652ecb_noinline
4653static void
3760infy_del (EV_P_ ev_stat *w) 4654infy_del (EV_P_ ev_stat *w)
3761{ 4655{
3762 int slot; 4656 int slot;
3763 int wd = w->wd; 4657 int wd = w->wd;
3764 4658
… …
3771 4665
3772 /* remove this watcher, if others are watching it, they will rearm */ 4666 /* remove this watcher, if others are watching it, they will rearm */
3773 inotify_rm_watch (fs_fd, wd); 4667 inotify_rm_watch (fs_fd, wd);
3774} 4668}
3775 4669
3776static void noinline 4670ecb_noinline
4671static void
3777infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4672infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3778{ 4673{
3779 if (slot < 0) 4674 if (slot < 0)
3780 /* overflow, need to check for all hash slots */ 4675 /* overflow, need to check for all hash slots */
3781 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4676 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3817 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4712 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3818 ofs += sizeof (struct inotify_event) + ev->len; 4713 ofs += sizeof (struct inotify_event) + ev->len;
3819 } 4714 }
3820} 4715}
3821 4716
3822inline_size void ecb_cold 4717inline_size ecb_cold
4718void
3823ev_check_2625 (EV_P) 4719ev_check_2625 (EV_P)
3824{ 4720{
3825 /* kernels < 2.6.25 are borked 4721 /* kernels < 2.6.25 are borked
3826 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4722 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3827 */ 4723 */
… …
3917#else 4813#else
3918# define EV_LSTAT(p,b) lstat (p, b) 4814# define EV_LSTAT(p,b) lstat (p, b)
3919#endif 4815#endif
3920 4816
3921void 4817void
3922ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4818ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3923{ 4819{
3924 if (lstat (w->path, &w->attr) < 0) 4820 if (lstat (w->path, &w->attr) < 0)
3925 w->attr.st_nlink = 0; 4821 w->attr.st_nlink = 0;
3926 else if (!w->attr.st_nlink) 4822 else if (!w->attr.st_nlink)
3927 w->attr.st_nlink = 1; 4823 w->attr.st_nlink = 1;
3928} 4824}
3929 4825
3930static void noinline 4826ecb_noinline
4827static void
3931stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4828stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3932{ 4829{
3933 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4830 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3934 4831
3935 ev_statdata prev = w->attr; 4832 ev_statdata prev = w->attr;
… …
3966 ev_feed_event (EV_A_ w, EV_STAT); 4863 ev_feed_event (EV_A_ w, EV_STAT);
3967 } 4864 }
3968} 4865}
3969 4866
3970void 4867void
3971ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4868ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3972{ 4869{
3973 if (expect_false (ev_is_active (w))) 4870 if (ecb_expect_false (ev_is_active (w)))
3974 return; 4871 return;
3975 4872
3976 ev_stat_stat (EV_A_ w); 4873 ev_stat_stat (EV_A_ w);
3977 4874
3978 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4875 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
3997 4894
3998 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
3999} 4896}
4000 4897
4001void 4898void
4002ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4899ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4003{ 4900{
4004 clear_pending (EV_A_ (W)w); 4901 clear_pending (EV_A_ (W)w);
4005 if (expect_false (!ev_is_active (w))) 4902 if (ecb_expect_false (!ev_is_active (w)))
4006 return; 4903 return;
4007 4904
4008 EV_FREQUENT_CHECK; 4905 EV_FREQUENT_CHECK;
4009 4906
4010#if EV_USE_INOTIFY 4907#if EV_USE_INOTIFY
… …
4023} 4920}
4024#endif 4921#endif
4025 4922
4026#if EV_IDLE_ENABLE 4923#if EV_IDLE_ENABLE
4027void 4924void
4028ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4925ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4029{ 4926{
4030 if (expect_false (ev_is_active (w))) 4927 if (ecb_expect_false (ev_is_active (w)))
4031 return; 4928 return;
4032 4929
4033 pri_adjust (EV_A_ (W)w); 4930 pri_adjust (EV_A_ (W)w);
4034 4931
4035 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
… …
4038 int active = ++idlecnt [ABSPRI (w)]; 4935 int active = ++idlecnt [ABSPRI (w)];
4039 4936
4040 ++idleall; 4937 ++idleall;
4041 ev_start (EV_A_ (W)w, active); 4938 ev_start (EV_A_ (W)w, active);
4042 4939
4043 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4940 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4044 idles [ABSPRI (w)][active - 1] = w; 4941 idles [ABSPRI (w)][active - 1] = w;
4045 } 4942 }
4046 4943
4047 EV_FREQUENT_CHECK; 4944 EV_FREQUENT_CHECK;
4048} 4945}
4049 4946
4050void 4947void
4051ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4948ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4052{ 4949{
4053 clear_pending (EV_A_ (W)w); 4950 clear_pending (EV_A_ (W)w);
4054 if (expect_false (!ev_is_active (w))) 4951 if (ecb_expect_false (!ev_is_active (w)))
4055 return; 4952 return;
4056 4953
4057 EV_FREQUENT_CHECK; 4954 EV_FREQUENT_CHECK;
4058 4955
4059 { 4956 {
… …
4070} 4967}
4071#endif 4968#endif
4072 4969
4073#if EV_PREPARE_ENABLE 4970#if EV_PREPARE_ENABLE
4074void 4971void
4075ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4972ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4076{ 4973{
4077 if (expect_false (ev_is_active (w))) 4974 if (ecb_expect_false (ev_is_active (w)))
4078 return; 4975 return;
4079 4976
4080 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
4081 4978
4082 ev_start (EV_A_ (W)w, ++preparecnt); 4979 ev_start (EV_A_ (W)w, ++preparecnt);
4083 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4980 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4084 prepares [preparecnt - 1] = w; 4981 prepares [preparecnt - 1] = w;
4085 4982
4086 EV_FREQUENT_CHECK; 4983 EV_FREQUENT_CHECK;
4087} 4984}
4088 4985
4089void 4986void
4090ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4987ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4091{ 4988{
4092 clear_pending (EV_A_ (W)w); 4989 clear_pending (EV_A_ (W)w);
4093 if (expect_false (!ev_is_active (w))) 4990 if (ecb_expect_false (!ev_is_active (w)))
4094 return; 4991 return;
4095 4992
4096 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4097 4994
4098 { 4995 {
… …
4108} 5005}
4109#endif 5006#endif
4110 5007
4111#if EV_CHECK_ENABLE 5008#if EV_CHECK_ENABLE
4112void 5009void
4113ev_check_start (EV_P_ ev_check *w) EV_THROW 5010ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4114{ 5011{
4115 if (expect_false (ev_is_active (w))) 5012 if (ecb_expect_false (ev_is_active (w)))
4116 return; 5013 return;
4117 5014
4118 EV_FREQUENT_CHECK; 5015 EV_FREQUENT_CHECK;
4119 5016
4120 ev_start (EV_A_ (W)w, ++checkcnt); 5017 ev_start (EV_A_ (W)w, ++checkcnt);
4121 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5018 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4122 checks [checkcnt - 1] = w; 5019 checks [checkcnt - 1] = w;
4123 5020
4124 EV_FREQUENT_CHECK; 5021 EV_FREQUENT_CHECK;
4125} 5022}
4126 5023
4127void 5024void
4128ev_check_stop (EV_P_ ev_check *w) EV_THROW 5025ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4129{ 5026{
4130 clear_pending (EV_A_ (W)w); 5027 clear_pending (EV_A_ (W)w);
4131 if (expect_false (!ev_is_active (w))) 5028 if (ecb_expect_false (!ev_is_active (w)))
4132 return; 5029 return;
4133 5030
4134 EV_FREQUENT_CHECK; 5031 EV_FREQUENT_CHECK;
4135 5032
4136 { 5033 {
… …
4145 EV_FREQUENT_CHECK; 5042 EV_FREQUENT_CHECK;
4146} 5043}
4147#endif 5044#endif
4148 5045
4149#if EV_EMBED_ENABLE 5046#if EV_EMBED_ENABLE
4150void noinline 5047ecb_noinline
5048void
4151ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5049ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4152{ 5050{
4153 ev_run (w->other, EVRUN_NOWAIT); 5051 ev_run (w->other, EVRUN_NOWAIT);
4154} 5052}
4155 5053
4156static void 5054static void
… …
4204 ev_idle_stop (EV_A_ idle); 5102 ev_idle_stop (EV_A_ idle);
4205} 5103}
4206#endif 5104#endif
4207 5105
4208void 5106void
4209ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5107ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4210{ 5108{
4211 if (expect_false (ev_is_active (w))) 5109 if (ecb_expect_false (ev_is_active (w)))
4212 return; 5110 return;
4213 5111
4214 { 5112 {
4215 EV_P = w->other; 5113 EV_P = w->other;
4216 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5114 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4235 5133
4236 EV_FREQUENT_CHECK; 5134 EV_FREQUENT_CHECK;
4237} 5135}
4238 5136
4239void 5137void
4240ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5138ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4241{ 5139{
4242 clear_pending (EV_A_ (W)w); 5140 clear_pending (EV_A_ (W)w);
4243 if (expect_false (!ev_is_active (w))) 5141 if (ecb_expect_false (!ev_is_active (w)))
4244 return; 5142 return;
4245 5143
4246 EV_FREQUENT_CHECK; 5144 EV_FREQUENT_CHECK;
4247 5145
4248 ev_io_stop (EV_A_ &w->io); 5146 ev_io_stop (EV_A_ &w->io);
… …
4255} 5153}
4256#endif 5154#endif
4257 5155
4258#if EV_FORK_ENABLE 5156#if EV_FORK_ENABLE
4259void 5157void
4260ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5158ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4261{ 5159{
4262 if (expect_false (ev_is_active (w))) 5160 if (ecb_expect_false (ev_is_active (w)))
4263 return; 5161 return;
4264 5162
4265 EV_FREQUENT_CHECK; 5163 EV_FREQUENT_CHECK;
4266 5164
4267 ev_start (EV_A_ (W)w, ++forkcnt); 5165 ev_start (EV_A_ (W)w, ++forkcnt);
4268 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5166 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4269 forks [forkcnt - 1] = w; 5167 forks [forkcnt - 1] = w;
4270 5168
4271 EV_FREQUENT_CHECK; 5169 EV_FREQUENT_CHECK;
4272} 5170}
4273 5171
4274void 5172void
4275ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5173ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4276{ 5174{
4277 clear_pending (EV_A_ (W)w); 5175 clear_pending (EV_A_ (W)w);
4278 if (expect_false (!ev_is_active (w))) 5176 if (ecb_expect_false (!ev_is_active (w)))
4279 return; 5177 return;
4280 5178
4281 EV_FREQUENT_CHECK; 5179 EV_FREQUENT_CHECK;
4282 5180
4283 { 5181 {
… …
4293} 5191}
4294#endif 5192#endif
4295 5193
4296#if EV_CLEANUP_ENABLE 5194#if EV_CLEANUP_ENABLE
4297void 5195void
4298ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5196ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4299{ 5197{
4300 if (expect_false (ev_is_active (w))) 5198 if (ecb_expect_false (ev_is_active (w)))
4301 return; 5199 return;
4302 5200
4303 EV_FREQUENT_CHECK; 5201 EV_FREQUENT_CHECK;
4304 5202
4305 ev_start (EV_A_ (W)w, ++cleanupcnt); 5203 ev_start (EV_A_ (W)w, ++cleanupcnt);
4306 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5204 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4307 cleanups [cleanupcnt - 1] = w; 5205 cleanups [cleanupcnt - 1] = w;
4308 5206
4309 /* cleanup watchers should never keep a refcount on the loop */ 5207 /* cleanup watchers should never keep a refcount on the loop */
4310 ev_unref (EV_A); 5208 ev_unref (EV_A);
4311 EV_FREQUENT_CHECK; 5209 EV_FREQUENT_CHECK;
4312} 5210}
4313 5211
4314void 5212void
4315ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5213ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4316{ 5214{
4317 clear_pending (EV_A_ (W)w); 5215 clear_pending (EV_A_ (W)w);
4318 if (expect_false (!ev_is_active (w))) 5216 if (ecb_expect_false (!ev_is_active (w)))
4319 return; 5217 return;
4320 5218
4321 EV_FREQUENT_CHECK; 5219 EV_FREQUENT_CHECK;
4322 ev_ref (EV_A); 5220 ev_ref (EV_A);
4323 5221
… …
4334} 5232}
4335#endif 5233#endif
4336 5234
4337#if EV_ASYNC_ENABLE 5235#if EV_ASYNC_ENABLE
4338void 5236void
4339ev_async_start (EV_P_ ev_async *w) EV_THROW 5237ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4340{ 5238{
4341 if (expect_false (ev_is_active (w))) 5239 if (ecb_expect_false (ev_is_active (w)))
4342 return; 5240 return;
4343 5241
4344 w->sent = 0; 5242 w->sent = 0;
4345 5243
4346 evpipe_init (EV_A); 5244 evpipe_init (EV_A);
4347 5245
4348 EV_FREQUENT_CHECK; 5246 EV_FREQUENT_CHECK;
4349 5247
4350 ev_start (EV_A_ (W)w, ++asynccnt); 5248 ev_start (EV_A_ (W)w, ++asynccnt);
4351 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5249 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4352 asyncs [asynccnt - 1] = w; 5250 asyncs [asynccnt - 1] = w;
4353 5251
4354 EV_FREQUENT_CHECK; 5252 EV_FREQUENT_CHECK;
4355} 5253}
4356 5254
4357void 5255void
4358ev_async_stop (EV_P_ ev_async *w) EV_THROW 5256ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4359{ 5257{
4360 clear_pending (EV_A_ (W)w); 5258 clear_pending (EV_A_ (W)w);
4361 if (expect_false (!ev_is_active (w))) 5259 if (ecb_expect_false (!ev_is_active (w)))
4362 return; 5260 return;
4363 5261
4364 EV_FREQUENT_CHECK; 5262 EV_FREQUENT_CHECK;
4365 5263
4366 { 5264 {
… …
4374 5272
4375 EV_FREQUENT_CHECK; 5273 EV_FREQUENT_CHECK;
4376} 5274}
4377 5275
4378void 5276void
4379ev_async_send (EV_P_ ev_async *w) EV_THROW 5277ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4380{ 5278{
4381 w->sent = 1; 5279 w->sent = 1;
4382 evpipe_write (EV_A_ &async_pending); 5280 evpipe_write (EV_A_ &async_pending);
4383} 5281}
4384#endif 5282#endif
… …
4421 5319
4422 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5320 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4423} 5321}
4424 5322
4425void 5323void
4426ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5324ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4427{ 5325{
4428 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5326 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4429
4430 if (expect_false (!once))
4431 {
4432 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4433 return;
4434 }
4435 5327
4436 once->cb = cb; 5328 once->cb = cb;
4437 once->arg = arg; 5329 once->arg = arg;
4438 5330
4439 ev_init (&once->io, once_cb_io); 5331 ev_init (&once->io, once_cb_io);
… …
4452} 5344}
4453 5345
4454/*****************************************************************************/ 5346/*****************************************************************************/
4455 5347
4456#if EV_WALK_ENABLE 5348#if EV_WALK_ENABLE
4457void ecb_cold 5349ecb_cold
5350void
4458ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5351ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4459{ 5352{
4460 int i, j; 5353 int i, j;
4461 ev_watcher_list *wl, *wn; 5354 ev_watcher_list *wl, *wn;
4462 5355
4463 if (types & (EV_IO | EV_EMBED)) 5356 if (types & (EV_IO | EV_EMBED))

Diff Legend

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