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Comparing libev/ev.c (file contents):
Revision 1.418 by root, Mon Apr 2 23:14:41 2012 UTC vs.
Revision 1.518 by root, Fri Dec 27 16:12:37 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 0 /* was: EV_FEATURE_BACKENDS, always off by default */
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>
… …
201# include <sys/wait.h> 238# include <sys/wait.h>
202# include <unistd.h> 239# include <unistd.h>
203#else 240#else
204# include <io.h> 241# include <io.h>
205# define WIN32_LEAN_AND_MEAN 242# define WIN32_LEAN_AND_MEAN
243# include <winsock2.h>
206# include <windows.h> 244# include <windows.h>
207# ifndef EV_SELECT_IS_WINSOCKET 245# ifndef EV_SELECT_IS_WINSOCKET
208# define EV_SELECT_IS_WINSOCKET 1 246# define EV_SELECT_IS_WINSOCKET 1
209# endif 247# endif
210# undef EV_AVOID_STDIO 248# undef EV_AVOID_STDIO
211#endif 249#endif
212
213/* OS X, in its infinite idiocy, actually HARDCODES
214 * a limit of 1024 into their select. Where people have brains,
215 * OS X engineers apparently have a vacuum. Or maybe they were
216 * ordered to have a vacuum, or they do anything for money.
217 * This might help. Or not.
218 */
219#define _DARWIN_UNLIMITED_SELECT 1
220 250
221/* 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 */
222 252
223/* try to deduce the maximum number of signals on this platform */ 253/* try to deduce the maximum number of signals on this platform */
224#if defined EV_NSIG 254#if defined EV_NSIG
… …
240#elif defined SIGARRAYSIZE 270#elif defined SIGARRAYSIZE
241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 271# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242#elif defined _sys_nsig 272#elif defined _sys_nsig
243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 273# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244#else 274#else
245# error "unable to find value for NSIG, please report" 275# define EV_NSIG (8 * sizeof (sigset_t) + 1)
246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
248# define EV_NSIG 65
249#endif 276#endif
250 277
251#ifndef EV_USE_FLOOR 278#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0 279# define EV_USE_FLOOR 0
253#endif 280#endif
254 281
255#ifndef EV_USE_CLOCK_SYSCALL 282#ifndef EV_USE_CLOCK_SYSCALL
256# if __linux && __GLIBC__ >= 2 283# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 284# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
258# else 285# else
259# 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
260# endif 296# endif
261#endif 297#endif
262 298
263#ifndef EV_USE_MONOTONIC 299#ifndef EV_USE_MONOTONIC
264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 300# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
306 342
307#ifndef EV_USE_PORT 343#ifndef EV_USE_PORT
308# define EV_USE_PORT 0 344# define EV_USE_PORT 0
309#endif 345#endif
310 346
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 0 /* was: 1, always off by default */
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
311#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
313# define EV_USE_INOTIFY EV_FEATURE_OS 365# define EV_USE_INOTIFY EV_FEATURE_OS
314# else 366# else
315# define EV_USE_INOTIFY 0 367# define EV_USE_INOTIFY 0
… …
338# else 390# else
339# define EV_USE_SIGNALFD 0 391# define EV_USE_SIGNALFD 0
340# endif 392# endif
341#endif 393#endif
342 394
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
343#if 0 /* debugging */ 403#if 0 /* debugging */
344# define EV_VERIFY 3 404# define EV_VERIFY 3
345# define EV_USE_4HEAP 1 405# define EV_USE_4HEAP 1
346# define EV_HEAP_CACHE_AT 1 406# define EV_HEAP_CACHE_AT 1
347#endif 407#endif
… …
356 416
357#ifndef EV_HEAP_CACHE_AT 417#ifndef EV_HEAP_CACHE_AT
358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 418# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359#endif 419#endif
360 420
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
435#endif
436
361/* 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, */
362/* which makes programs even slower. might work on other unices, too. */ 438/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 439#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 440# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
369# else 446# else
370# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
371# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
372# endif 449# endif
373#endif 450#endif
374 451
375/* 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 */
376 453
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
383#ifndef CLOCK_MONOTONIC 454#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC 455# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0 456# define EV_USE_MONOTONIC 0
386#endif 457#endif
387 458
… …
391#endif 462#endif
392 463
393#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
394# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
395# 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
396#endif 475#endif
397 476
398#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
399/* 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 */
400# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
401# 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
402# endif 506# endif
403#endif 507#endif
404 508
405#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
406# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
410# undef EV_USE_INOTIFY 514# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
412# endif 516# endif
413#endif 517#endif
414 518
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif
418
419#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
420/* 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 */
421# include <stdint.h> 521# include <stdint.h>
422# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
423# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
424# endif 524# endif
425# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
431# endif 531# endif
432EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
433#endif 533#endif
434 534
435#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
436/* 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 */
437# include <stdint.h> 537# include <stdint.h>
438# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
439# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
440# endif 540# endif
441# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
443# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
444# else 544# else
445# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
446# endif 546# endif
447# endif 547# endif
448EV_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);
449 549
450struct signalfd_siginfo 550struct signalfd_siginfo
451{ 551{
452 uint32_t ssi_signo; 552 uint32_t ssi_signo;
453 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
454}; 554};
455#endif 555#endif
456 556
457/**/ 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/*****************************************************************************/
458 568
459#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
460# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
461#else 571#else
462# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
467 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
468 */ 578 */
469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
471 581
472#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) */
473#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) */
474 584
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
475#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)
476#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
477 602
478/* 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 */
479/* ECB.H BEGIN */ 604/* ECB.H BEGIN */
480/* 605/*
481 * libecb - http://software.schmorp.de/pkg/libecb 606 * libecb - http://software.schmorp.de/pkg/libecb
482 * 607 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 608 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta 609 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved. 610 * All rights reserved.
486 * 611 *
487 * 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-
488 * tion, are permitted provided that the following conditions are met: 613 * tion, are permitted provided that the following conditions are met:
… …
502 * 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;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 628 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 629 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * 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
506 * 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.
507 */ 643 */
508 644
509#ifndef ECB_H 645#ifndef ECB_H
510#define ECB_H 646#define ECB_H
647
648/* 16 bits major, 16 bits minor */
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;
… …
521 typedef unsigned long long uint64_t; 660 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 661 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 662 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 663 typedef unsigned __int64 uint64_t;
525 #endif 664 #endif
665 #ifdef _WIN64
666 #define ECB_PTRSIZE 8
667 typedef uint64_t uintptr_t;
668 typedef int64_t intptr_t;
669 #else
670 #define ECB_PTRSIZE 4
671 typedef uint32_t uintptr_t;
672 typedef int32_t intptr_t;
673 #endif
526#else 674#else
527 #include <inttypes.h> 675 #include <inttypes.h>
676 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
677 #define ECB_PTRSIZE 8
678 #else
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
692 #endif
528#endif 693#endif
529 694
530/* many compilers define _GNUC_ to some versions but then only implement 695/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 696 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 697 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 698 * or so.
534 * 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
535 * 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.
536 */ 701 */
537#ifndef ECB_GCC_VERSION
538 #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__
539 #define ECB_GCC_VERSION(major,minor) 0 703 #define ECB_GCC_VERSION(major,minor) 0
540 #else 704#else
541 #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)))
542 #endif 706#endif
707
708#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
709
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
722#define ECB_CPP (__cplusplus+0)
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
543#endif 747#endif
544 748
545/*****************************************************************************/ 749/*****************************************************************************/
546 750
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 751/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* 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 */
549 753
550#if ECB_NO_THREADS 754#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 755 #define ECB_NO_SMP 1
552#endif 756#endif
553 757
554#if ECB_NO_THREADS || ECB_NO_SMP 758#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 759 #define ECB_MEMORY_FENCE do { } while (0)
760#endif
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 */
556#endif 769#endif
557 770
558#ifndef ECB_MEMORY_FENCE 771#ifndef ECB_MEMORY_FENCE
559 #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")
560 #if __i386 || __i386__ 774 #if __i386 || __i386__
561 #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")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 776 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 777 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 778 #elif ECB_GCC_AMD64
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 779 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 780 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 781 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 782 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #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 */
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 791 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 792 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
793 || defined __ARM_ARCH_6T2__
572 #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")
573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 795 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 796 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 797 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 798 #elif __aarch64__
799 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
800 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
577 #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")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 802 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 803 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__ 804 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 805 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #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. */
809 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
810 #elif defined __alpha__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 811 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
812 #elif defined __hppa__
813 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
814 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
815 #elif defined __ia64__
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")
584 #endif 823 #endif
585 #endif 824 #endif
586#endif 825#endif
587 826
588#ifndef ECB_MEMORY_FENCE 827#ifndef ECB_MEMORY_FENCE
828 #if ECB_GCC_VERSION(4,7)
829 /* see comment below (stdatomic.h) about the C11 memory model. */
830 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
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)
836 /* see comment below (stdatomic.h) about the C11 memory model. */
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
589 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 842 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 843 #define ECB_MEMORY_FENCE __sync_synchronize ()
591 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 844 #elif _MSC_VER >= 1500 /* VC++ 2008 */
592 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 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()
593 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 850 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 851 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 852 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #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 */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 854 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined _WIN32 855 #elif defined _WIN32
599 #include <WinNT.h> 856 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 857 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 858 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h> 859 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier () 860 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 861 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
605 #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 ()
606 #elif __xlC__ 864 #elif __xlC__
607 #define ECB_MEMORY_FENCE __sync () 865 #define ECB_MEMORY_FENCE __sync ()
866 #endif
867#endif
868
869#ifndef ECB_MEMORY_FENCE
870 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
871 /* we assume that these memory fences work on all variables/all memory accesses, */
872 /* not just C11 atomics and atomic accesses */
873 #include <stdatomic.h>
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)
608 #endif 877 #endif
609#endif 878#endif
610 879
611#ifndef ECB_MEMORY_FENCE 880#ifndef ECB_MEMORY_FENCE
612 #if !ECB_AVOID_PTHREADS 881 #if !ECB_AVOID_PTHREADS
… …
632 901
633#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 902#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
634 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 903 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635#endif 904#endif
636 905
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
637/*****************************************************************************/ 910/*****************************************************************************/
638 911
639#define ECB_C99 (__STDC_VERSION__ >= 199901L) 912#if ECB_CPP
640
641#if __cplusplus
642 #define ecb_inline static inline 913 #define ecb_inline static inline
643#elif ECB_GCC_VERSION(2,5) 914#elif ECB_GCC_VERSION(2,5)
644 #define ecb_inline static __inline__ 915 #define ecb_inline static __inline__
645#elif ECB_C99 916#elif ECB_C99
646 #define ecb_inline static inline 917 #define ecb_inline static inline
… …
660 931
661#define ECB_CONCAT_(a, b) a ## b 932#define ECB_CONCAT_(a, b) a ## b
662#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 933#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
663#define ECB_STRINGIFY_(a) # a 934#define ECB_STRINGIFY_(a) # a
664#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))
665 937
666#define ecb_function_ ecb_inline 938#define ecb_function_ ecb_inline
667 939
668#if ECB_GCC_VERSION(3,1) 940#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
669 #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)
670 #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)
671 #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)
672 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 963 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
673#else 964#else
674 #define ecb_attribute(attrlist)
675 #define ecb_is_constant(expr) 0
676 #define ecb_expect(expr,value) (expr)
677 #define ecb_prefetch(addr,rw,locality) 965 #define ecb_prefetch(addr,rw,locality)
678#endif 966#endif
679 967
680/* no emulation for ecb_decltype */ 968/* no emulation for ecb_decltype */
681#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; };
682 #define ecb_decltype(x) __decltype(x) 972 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
683#elif ECB_GCC_VERSION(3,0) 973#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
684 #define ecb_decltype(x) __typeof(x) 974 #define ecb_decltype(x) __typeof__ (x)
685#endif 975#endif
686 976
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
687#define ecb_noinline ecb_attribute ((__noinline__)) 994 #define ecb_noinline ecb_attribute ((__noinline__))
688#define ecb_noreturn ecb_attribute ((__noreturn__)) 995#endif
996
689#define ecb_unused ecb_attribute ((__unused__)) 997#define ecb_unused ecb_attribute ((__unused__))
690#define ecb_const ecb_attribute ((__const__)) 998#define ecb_const ecb_attribute ((__const__))
691#define ecb_pure ecb_attribute ((__pure__)) 999#define ecb_pure ecb_attribute ((__pure__))
1000
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 */
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)
1009#else
1010 #define ecb_noreturn ecb_attribute ((__noreturn__))
1011#endif
692 1012
693#if ECB_GCC_VERSION(4,3) 1013#if ECB_GCC_VERSION(4,3)
694 #define ecb_artificial ecb_attribute ((__artificial__)) 1014 #define ecb_artificial ecb_attribute ((__artificial__))
695 #define ecb_hot ecb_attribute ((__hot__)) 1015 #define ecb_hot ecb_attribute ((__hot__))
696 #define ecb_cold ecb_attribute ((__cold__)) 1016 #define ecb_cold ecb_attribute ((__cold__))
… …
708/* for compatibility to the rest of the world */ 1028/* for compatibility to the rest of the world */
709#define ecb_likely(expr) ecb_expect_true (expr) 1029#define ecb_likely(expr) ecb_expect_true (expr)
710#define ecb_unlikely(expr) ecb_expect_false (expr) 1030#define ecb_unlikely(expr) ecb_expect_false (expr)
711 1031
712/* count trailing zero bits and count # of one bits */ 1032/* count trailing zero bits and count # of one bits */
713#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))
714 /* 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 */
715 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 1038 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
716 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 1039 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
717 #define ecb_ctz32(x) __builtin_ctz (x) 1040 #define ecb_ctz32(x) __builtin_ctz (x)
718 #define ecb_ctz64(x) __builtin_ctzll (x) 1041 #define ecb_ctz64(x) __builtin_ctzll (x)
719 #define ecb_popcount32(x) __builtin_popcount (x) 1042 #define ecb_popcount32(x) __builtin_popcount (x)
720 /* no popcountll */ 1043 /* no popcountll */
721#else 1044#else
722 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1045 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
723 ecb_function_ int 1046 ecb_function_ ecb_const int
724 ecb_ctz32 (uint32_t x) 1047 ecb_ctz32 (uint32_t x)
725 { 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
726 int r = 0; 1054 int r = 0;
727 1055
728 x &= ~x + 1; /* this isolates the lowest bit */ 1056 x &= ~x + 1; /* this isolates the lowest bit */
729 1057
730#if ECB_branchless_on_i386 1058#if ECB_branchless_on_i386
… …
740 if (x & 0xff00ff00) r += 8; 1068 if (x & 0xff00ff00) r += 8;
741 if (x & 0xffff0000) r += 16; 1069 if (x & 0xffff0000) r += 16;
742#endif 1070#endif
743 1071
744 return r; 1072 return r;
1073#endif
745 } 1074 }
746 1075
747 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1076 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
748 ecb_function_ int 1077 ecb_function_ ecb_const int
749 ecb_ctz64 (uint64_t x) 1078 ecb_ctz64 (uint64_t x)
750 { 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
751 int shift = x & 0xffffffffU ? 0 : 32; 1085 int shift = x & 0xffffffff ? 0 : 32;
752 return ecb_ctz32 (x >> shift) + shift; 1086 return ecb_ctz32 (x >> shift) + shift;
1087#endif
753 } 1088 }
754 1089
755 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1090 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
756 ecb_function_ int 1091 ecb_function_ ecb_const int
757 ecb_popcount32 (uint32_t x) 1092 ecb_popcount32 (uint32_t x)
758 { 1093 {
759 x -= (x >> 1) & 0x55555555; 1094 x -= (x >> 1) & 0x55555555;
760 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1095 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
761 x = ((x >> 4) + x) & 0x0f0f0f0f; 1096 x = ((x >> 4) + x) & 0x0f0f0f0f;
762 x *= 0x01010101; 1097 x *= 0x01010101;
763 1098
764 return x >> 24; 1099 return x >> 24;
765 } 1100 }
766 1101
767 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1102 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
768 ecb_function_ int ecb_ld32 (uint32_t x) 1103 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
769 { 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
770 int r = 0; 1110 int r = 0;
771 1111
772 if (x >> 16) { x >>= 16; r += 16; } 1112 if (x >> 16) { x >>= 16; r += 16; }
773 if (x >> 8) { x >>= 8; r += 8; } 1113 if (x >> 8) { x >>= 8; r += 8; }
774 if (x >> 4) { x >>= 4; r += 4; } 1114 if (x >> 4) { x >>= 4; r += 4; }
775 if (x >> 2) { x >>= 2; r += 2; } 1115 if (x >> 2) { x >>= 2; r += 2; }
776 if (x >> 1) { r += 1; } 1116 if (x >> 1) { r += 1; }
777 1117
778 return r; 1118 return r;
1119#endif
779 } 1120 }
780 1121
781 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1122 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
782 ecb_function_ int ecb_ld64 (uint64_t x) 1123 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
783 { 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
784 int r = 0; 1130 int r = 0;
785 1131
786 if (x >> 32) { x >>= 32; r += 32; } 1132 if (x >> 32) { x >>= 32; r += 32; }
787 1133
788 return r + ecb_ld32 (x); 1134 return r + ecb_ld32 (x);
1135#endif
789 } 1136 }
790#endif 1137#endif
791 1138
1139ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
1140ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1141ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
1142ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
1143
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1144ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
793ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1145ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
794{ 1146{
795 return ( (x * 0x0802U & 0x22110U) 1147 return ( (x * 0x0802U & 0x22110U)
796 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1148 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
797} 1149}
798 1150
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1151ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
800ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1152ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
801{ 1153{
802 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1154 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
803 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1155 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
804 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1156 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
805 x = ( x >> 8 ) | ( x << 8); 1157 x = ( x >> 8 ) | ( x << 8);
806 1158
807 return x; 1159 return x;
808} 1160}
809 1161
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1162ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
811ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1163ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
812{ 1164{
813 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1165 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
814 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1166 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
815 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1167 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
816 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1168 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
819 return x; 1171 return x;
820} 1172}
821 1173
822/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1174/* popcount64 is only available on 64 bit cpus as gcc builtin */
823/* so for this version we are lazy */ 1175/* so for this version we are lazy */
824ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1176ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
825ecb_function_ int 1177ecb_function_ ecb_const int
826ecb_popcount64 (uint64_t x) 1178ecb_popcount64 (uint64_t x)
827{ 1179{
828 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1180 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
829} 1181}
830 1182
831ecb_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);
832ecb_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);
833ecb_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);
834ecb_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);
835ecb_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);
836ecb_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);
837ecb_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);
838ecb_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);
839 1191
840ecb_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); }
841ecb_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); }
842ecb_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); }
843ecb_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); }
844ecb_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); }
845ecb_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); }
846ecb_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); }
847ecb_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); }
848 1200
849#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
850 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1205 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1206 #endif
851 #define ecb_bswap32(x) __builtin_bswap32 (x) 1207 #define ecb_bswap32(x) __builtin_bswap32 (x)
852 #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)))
853#else 1214#else
854 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1215 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
855 ecb_function_ uint16_t 1216 ecb_function_ ecb_const uint16_t
856 ecb_bswap16 (uint16_t x) 1217 ecb_bswap16 (uint16_t x)
857 { 1218 {
858 return ecb_rotl16 (x, 8); 1219 return ecb_rotl16 (x, 8);
859 } 1220 }
860 1221
861 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1222 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
862 ecb_function_ uint32_t 1223 ecb_function_ ecb_const uint32_t
863 ecb_bswap32 (uint32_t x) 1224 ecb_bswap32 (uint32_t x)
864 { 1225 {
865 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1226 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
866 } 1227 }
867 1228
868 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1229 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
869 ecb_function_ uint64_t 1230 ecb_function_ ecb_const uint64_t
870 ecb_bswap64 (uint64_t x) 1231 ecb_bswap64 (uint64_t x)
871 { 1232 {
872 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1233 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
873 } 1234 }
874#endif 1235#endif
875 1236
876#if ECB_GCC_VERSION(4,5) 1237#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
877 #define ecb_unreachable() __builtin_unreachable () 1238 #define ecb_unreachable() __builtin_unreachable ()
878#else 1239#else
879 /* 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 :/ */
880 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1241 ecb_inline ecb_noreturn void ecb_unreachable (void);
881 ecb_inline void ecb_unreachable (void) { } 1242 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
882#endif 1243#endif
883 1244
884/* try to tell the compiler that some condition is definitely true */ 1245/* try to tell the compiler that some condition is definitely true */
885#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1246#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
886 1247
887ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1248ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
888ecb_inline unsigned char 1249ecb_inline ecb_const uint32_t
889ecb_byteorder_helper (void) 1250ecb_byteorder_helper (void)
890{ 1251{
891 const uint32_t u = 0x11223344; 1252 /* the union code still generates code under pressure in gcc, */
892 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
893} 1274}
894 1275
895ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1276ecb_inline ecb_const ecb_bool ecb_big_endian (void);
896ecb_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; }
897ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1278ecb_inline ecb_const ecb_bool ecb_little_endian (void);
898ecb_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; }
899 1280
900#if ECB_GCC_VERSION(3,0) || ECB_C99 1281#if ECB_GCC_VERSION(3,0) || ECB_C99
901 #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))
902#else 1283#else
903 #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)))
904#endif 1285#endif
905 1286
906#if __cplusplus 1287#if ECB_CPP
907 template<typename T> 1288 template<typename T>
908 static inline T ecb_div_rd (T val, T div) 1289 static inline T ecb_div_rd (T val, T div)
909 { 1290 {
910 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1291 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
911 } 1292 }
… …
928 } 1309 }
929#else 1310#else
930 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1311 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
931#endif 1312#endif
932 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
933#endif 1619#endif
934 1620
935/* ECB.H END */ 1621/* ECB.H END */
936 1622
937#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1623#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
938/* 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
939 * 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
940 * 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
941 * libev, in which cases the memory fences become nops. 1627 * libev, in which cases the memory fences become nops.
942 * alternatively, you can remove this #error and link against libpthread, 1628 * alternatively, you can remove this #error and link against libpthread,
943 * which will then provide the memory fences. 1629 * which will then provide the memory fences.
944 */ 1630 */
945# error "memory fences not defined for your architecture, please report" 1631# error "memory fences not defined for your architecture, please report"
… …
949# define ECB_MEMORY_FENCE do { } while (0) 1635# define ECB_MEMORY_FENCE do { } while (0)
950# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1636# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
951# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1637# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
952#endif 1638#endif
953 1639
954#define expect_false(cond) ecb_expect_false (cond)
955#define expect_true(cond) ecb_expect_true (cond)
956#define noinline ecb_noinline
957
958#define inline_size ecb_inline 1640#define inline_size ecb_inline
959 1641
960#if EV_FEATURE_CODE 1642#if EV_FEATURE_CODE
961# define inline_speed ecb_inline 1643# define inline_speed ecb_inline
962#else 1644#else
963# define inline_speed static noinline 1645# define inline_speed ecb_noinline static
964#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/*****************************************************************************/
965 1713
966#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1714#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
967 1715
968#if EV_MINPRI == EV_MAXPRI 1716#if EV_MINPRI == EV_MAXPRI
969# define ABSPRI(w) (((W)w), 0) 1717# define ABSPRI(w) (((W)w), 0)
970#else 1718#else
971# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1719# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
972#endif 1720#endif
973 1721
974#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1722#define EMPTY /* required for microsofts broken pseudo-c compiler */
975#define EMPTY2(a,b) /* used to suppress some warnings */
976 1723
977typedef ev_watcher *W; 1724typedef ev_watcher *W;
978typedef ev_watcher_list *WL; 1725typedef ev_watcher_list *WL;
979typedef ev_watcher_time *WT; 1726typedef ev_watcher_time *WT;
980 1727
… …
1005# include "ev_win32.c" 1752# include "ev_win32.c"
1006#endif 1753#endif
1007 1754
1008/*****************************************************************************/ 1755/*****************************************************************************/
1009 1756
1757#if EV_USE_LINUXAIO
1758# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1759#endif
1760
1010/* define a suitable floor function (only used by periodics atm) */ 1761/* define a suitable floor function (only used by periodics atm) */
1011 1762
1012#if EV_USE_FLOOR 1763#if EV_USE_FLOOR
1013# include <math.h> 1764# include <math.h>
1014# define ev_floor(v) floor (v) 1765# define ev_floor(v) floor (v)
1015#else 1766#else
1016 1767
1017#include <float.h> 1768#include <float.h>
1018 1769
1019/* 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
1020static ev_tstamp noinline 1772static ev_tstamp
1021ev_floor (ev_tstamp v) 1773ev_floor (ev_tstamp v)
1022{ 1774{
1023 /* the choice of shift factor is not terribly important */ 1775 /* the choice of shift factor is not terribly important */
1024#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1776#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1025 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1777 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1026#else 1778#else
1027 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1779 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1028#endif 1780#endif
1029 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
1030 /* argument too large for an unsigned long? */ 1790 /* argument too large for an unsigned long? then reduce it */
1031 if (expect_false (v >= shift)) 1791 if (ecb_expect_false (v >= shift))
1032 { 1792 {
1033 ev_tstamp f; 1793 ev_tstamp f;
1034 1794
1035 if (v == v - 1.) 1795 if (v == v - 1.)
1036 return v; /* very large number */ 1796 return v; /* very large numbers are assumed to be integer */
1037 1797
1038 f = shift * ev_floor (v * (1. / shift)); 1798 f = shift * ev_floor (v * (1. / shift));
1039 return f + ev_floor (v - f); 1799 return f + ev_floor (v - f);
1040 } 1800 }
1041 1801
1042 /* special treatment for negative args? */
1043 if (expect_false (v < 0.))
1044 {
1045 ev_tstamp f = -ev_floor (-v);
1046
1047 return f - (f == v ? 0 : 1);
1048 }
1049
1050 /* fits into an unsigned long */ 1802 /* fits into an unsigned long */
1051 return (unsigned long)v; 1803 return (unsigned long)v;
1052} 1804}
1053 1805
1054#endif 1806#endif
… …
1057 1809
1058#ifdef __linux 1810#ifdef __linux
1059# include <sys/utsname.h> 1811# include <sys/utsname.h>
1060#endif 1812#endif
1061 1813
1062static unsigned int noinline ecb_cold 1814ecb_noinline ecb_cold
1815static unsigned int
1063ev_linux_version (void) 1816ev_linux_version (void)
1064{ 1817{
1065#ifdef __linux 1818#ifdef __linux
1066 unsigned int v = 0; 1819 unsigned int v = 0;
1067 struct utsname buf; 1820 struct utsname buf;
… …
1096} 1849}
1097 1850
1098/*****************************************************************************/ 1851/*****************************************************************************/
1099 1852
1100#if EV_AVOID_STDIO 1853#if EV_AVOID_STDIO
1101static void noinline ecb_cold 1854ecb_noinline ecb_cold
1855static void
1102ev_printerr (const char *msg) 1856ev_printerr (const char *msg)
1103{ 1857{
1104 write (STDERR_FILENO, msg, strlen (msg)); 1858 write (STDERR_FILENO, msg, strlen (msg));
1105} 1859}
1106#endif 1860#endif
1107 1861
1108static void (*syserr_cb)(const char *msg); 1862static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1109 1863
1110void ecb_cold 1864ecb_cold
1865void
1111ev_set_syserr_cb (void (*cb)(const char *msg)) 1866ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1112{ 1867{
1113 syserr_cb = cb; 1868 syserr_cb = cb;
1114} 1869}
1115 1870
1116static void noinline ecb_cold 1871ecb_noinline ecb_cold
1872static void
1117ev_syserr (const char *msg) 1873ev_syserr (const char *msg)
1118{ 1874{
1119 if (!msg) 1875 if (!msg)
1120 msg = "(libev) system error"; 1876 msg = "(libev) system error";
1121 1877
… …
1134 abort (); 1890 abort ();
1135 } 1891 }
1136} 1892}
1137 1893
1138static void * 1894static void *
1139ev_realloc_emul (void *ptr, long size) 1895ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1140{ 1896{
1141#if __GLIBC__
1142 return realloc (ptr, size);
1143#else
1144 /* some systems, notably openbsd and darwin, fail to properly 1897 /* some systems, notably openbsd and darwin, fail to properly
1145 * 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
1146 * the single unix specification, so work around them here. 1899 * the single unix specification, so work around them here.
1900 * recently, also (at least) fedora and debian started breaking it,
1901 * despite documenting it otherwise.
1147 */ 1902 */
1148 1903
1149 if (size) 1904 if (size)
1150 return realloc (ptr, size); 1905 return realloc (ptr, size);
1151 1906
1152 free (ptr); 1907 free (ptr);
1153 return 0; 1908 return 0;
1154#endif
1155} 1909}
1156 1910
1157static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1911static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1158 1912
1159void ecb_cold 1913ecb_cold
1914void
1160ev_set_allocator (void *(*cb)(void *ptr, long size)) 1915ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1161{ 1916{
1162 alloc = cb; 1917 alloc = cb;
1163} 1918}
1164 1919
1165inline_speed void * 1920inline_speed void *
… …
1192typedef struct 1947typedef struct
1193{ 1948{
1194 WL head; 1949 WL head;
1195 unsigned char events; /* the events watched for */ 1950 unsigned char events; /* the events watched for */
1196 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) */
1197 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 */
1198 unsigned char unused; 1953 unsigned char eflags; /* flags field for use by backends */
1199#if EV_USE_EPOLL 1954#if EV_USE_EPOLL
1200 unsigned int egen; /* generation counter to counter epoll bugs */ 1955 unsigned int egen; /* generation counter to counter epoll bugs */
1201#endif 1956#endif
1202#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1957#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1203 SOCKET handle; 1958 SOCKET handle;
… …
1257 static struct ev_loop default_loop_struct; 2012 static struct ev_loop default_loop_struct;
1258 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 */
1259 2014
1260#else 2015#else
1261 2016
1262 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 */
1263 #define VAR(name,decl) static decl; 2018 #define VAR(name,decl) static decl;
1264 #include "ev_vars.h" 2019 #include "ev_vars.h"
1265 #undef VAR 2020 #undef VAR
1266 2021
1267 static int ev_default_loop_ptr; 2022 static int ev_default_loop_ptr;
1268 2023
1269#endif 2024#endif
1270 2025
1271#if EV_FEATURE_API 2026#if EV_FEATURE_API
1272# 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)
1273# 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)
1274# define EV_INVOKE_PENDING invoke_cb (EV_A) 2029# define EV_INVOKE_PENDING invoke_cb (EV_A)
1275#else 2030#else
1276# define EV_RELEASE_CB (void)0 2031# define EV_RELEASE_CB (void)0
1277# define EV_ACQUIRE_CB (void)0 2032# define EV_ACQUIRE_CB (void)0
1278# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2033# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1282 2037
1283/*****************************************************************************/ 2038/*****************************************************************************/
1284 2039
1285#ifndef EV_HAVE_EV_TIME 2040#ifndef EV_HAVE_EV_TIME
1286ev_tstamp 2041ev_tstamp
1287ev_time (void) 2042ev_time (void) EV_NOEXCEPT
1288{ 2043{
1289#if EV_USE_REALTIME 2044#if EV_USE_REALTIME
1290 if (expect_true (have_realtime)) 2045 if (ecb_expect_true (have_realtime))
1291 { 2046 {
1292 struct timespec ts; 2047 struct timespec ts;
1293 clock_gettime (CLOCK_REALTIME, &ts); 2048 clock_gettime (CLOCK_REALTIME, &ts);
1294 return ts.tv_sec + ts.tv_nsec * 1e-9; 2049 return EV_TS_GET (ts);
1295 } 2050 }
1296#endif 2051#endif
1297 2052
2053 {
1298 struct timeval tv; 2054 struct timeval tv;
1299 gettimeofday (&tv, 0); 2055 gettimeofday (&tv, 0);
1300 return tv.tv_sec + tv.tv_usec * 1e-6; 2056 return EV_TV_GET (tv);
2057 }
1301} 2058}
1302#endif 2059#endif
1303 2060
1304inline_size ev_tstamp 2061inline_size ev_tstamp
1305get_clock (void) 2062get_clock (void)
1306{ 2063{
1307#if EV_USE_MONOTONIC 2064#if EV_USE_MONOTONIC
1308 if (expect_true (have_monotonic)) 2065 if (ecb_expect_true (have_monotonic))
1309 { 2066 {
1310 struct timespec ts; 2067 struct timespec ts;
1311 clock_gettime (CLOCK_MONOTONIC, &ts); 2068 clock_gettime (CLOCK_MONOTONIC, &ts);
1312 return ts.tv_sec + ts.tv_nsec * 1e-9; 2069 return EV_TS_GET (ts);
1313 } 2070 }
1314#endif 2071#endif
1315 2072
1316 return ev_time (); 2073 return ev_time ();
1317} 2074}
1318 2075
1319#if EV_MULTIPLICITY 2076#if EV_MULTIPLICITY
1320ev_tstamp 2077ev_tstamp
1321ev_now (EV_P) 2078ev_now (EV_P) EV_NOEXCEPT
1322{ 2079{
1323 return ev_rt_now; 2080 return ev_rt_now;
1324} 2081}
1325#endif 2082#endif
1326 2083
1327void 2084void
1328ev_sleep (ev_tstamp delay) 2085ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1329{ 2086{
1330 if (delay > 0.) 2087 if (delay > EV_TS_CONST (0.))
1331 { 2088 {
1332#if EV_USE_NANOSLEEP 2089#if EV_USE_NANOSLEEP
1333 struct timespec ts; 2090 struct timespec ts;
1334 2091
1335 EV_TS_SET (ts, delay); 2092 EV_TS_SET (ts, delay);
1336 nanosleep (&ts, 0); 2093 nanosleep (&ts, 0);
1337#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) */
1338 Sleep ((unsigned long)(delay * 1e3)); 2097 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1339#else 2098#else
1340 struct timeval tv; 2099 struct timeval tv;
1341 2100
1342 /* 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 */
1343 /* something not guaranteed by newer posix versions, but guaranteed */ 2102 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1373 } 2132 }
1374 2133
1375 return ncur; 2134 return ncur;
1376} 2135}
1377 2136
1378static void * noinline ecb_cold 2137ecb_noinline ecb_cold
2138static void *
1379array_realloc (int elem, void *base, int *cur, int cnt) 2139array_realloc (int elem, void *base, int *cur, int cnt)
1380{ 2140{
1381 *cur = array_nextsize (elem, *cur, cnt); 2141 *cur = array_nextsize (elem, *cur, cnt);
1382 return ev_realloc (base, elem * *cur); 2142 return ev_realloc (base, elem * *cur);
1383} 2143}
1384 2144
2145#define array_needsize_noinit(base,offset,count)
2146
1385#define array_init_zero(base,count) \ 2147#define array_needsize_zerofill(base,offset,count) \
1386 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2148 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1387 2149
1388#define array_needsize(type,base,cur,cnt,init) \ 2150#define array_needsize(type,base,cur,cnt,init) \
1389 if (expect_false ((cnt) > (cur))) \ 2151 if (ecb_expect_false ((cnt) > (cur))) \
1390 { \ 2152 { \
1391 int ecb_unused ocur_ = (cur); \ 2153 ecb_unused int ocur_ = (cur); \
1392 (base) = (type *)array_realloc \ 2154 (base) = (type *)array_realloc \
1393 (sizeof (type), (base), &(cur), (cnt)); \ 2155 (sizeof (type), (base), &(cur), (cnt)); \
1394 init ((base) + (ocur_), (cur) - ocur_); \ 2156 init ((base), ocur_, ((cur) - ocur_)); \
1395 } 2157 }
1396 2158
1397#if 0 2159#if 0
1398#define array_slim(type,stem) \ 2160#define array_slim(type,stem) \
1399 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2161 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1408 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
1409 2171
1410/*****************************************************************************/ 2172/*****************************************************************************/
1411 2173
1412/* dummy callback for pending events */ 2174/* dummy callback for pending events */
1413static void noinline 2175ecb_noinline
2176static void
1414pendingcb (EV_P_ ev_prepare *w, int revents) 2177pendingcb (EV_P_ ev_prepare *w, int revents)
1415{ 2178{
1416} 2179}
1417 2180
1418void noinline 2181ecb_noinline
2182void
1419ev_feed_event (EV_P_ void *w, int revents) 2183ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1420{ 2184{
1421 W w_ = (W)w; 2185 W w_ = (W)w;
1422 int pri = ABSPRI (w_); 2186 int pri = ABSPRI (w_);
1423 2187
1424 if (expect_false (w_->pending)) 2188 if (ecb_expect_false (w_->pending))
1425 pendings [pri][w_->pending - 1].events |= revents; 2189 pendings [pri][w_->pending - 1].events |= revents;
1426 else 2190 else
1427 { 2191 {
1428 w_->pending = ++pendingcnt [pri]; 2192 w_->pending = ++pendingcnt [pri];
1429 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2193 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1430 pendings [pri][w_->pending - 1].w = w_; 2194 pendings [pri][w_->pending - 1].w = w_;
1431 pendings [pri][w_->pending - 1].events = revents; 2195 pendings [pri][w_->pending - 1].events = revents;
1432 } 2196 }
2197
2198 pendingpri = NUMPRI - 1;
1433} 2199}
1434 2200
1435inline_speed void 2201inline_speed void
1436feed_reverse (EV_P_ W w) 2202feed_reverse (EV_P_ W w)
1437{ 2203{
1438 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2204 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1439 rfeeds [rfeedcnt++] = w; 2205 rfeeds [rfeedcnt++] = w;
1440} 2206}
1441 2207
1442inline_size void 2208inline_size void
1443feed_reverse_done (EV_P_ int revents) 2209feed_reverse_done (EV_P_ int revents)
… …
1478inline_speed void 2244inline_speed void
1479fd_event (EV_P_ int fd, int revents) 2245fd_event (EV_P_ int fd, int revents)
1480{ 2246{
1481 ANFD *anfd = anfds + fd; 2247 ANFD *anfd = anfds + fd;
1482 2248
1483 if (expect_true (!anfd->reify)) 2249 if (ecb_expect_true (!anfd->reify))
1484 fd_event_nocheck (EV_A_ fd, revents); 2250 fd_event_nocheck (EV_A_ fd, revents);
1485} 2251}
1486 2252
1487void 2253void
1488ev_feed_fd_event (EV_P_ int fd, int revents) 2254ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1489{ 2255{
1490 if (fd >= 0 && fd < anfdmax) 2256 if (fd >= 0 && fd < anfdmax)
1491 fd_event_nocheck (EV_A_ fd, revents); 2257 fd_event_nocheck (EV_A_ fd, revents);
1492} 2258}
1493 2259
… …
1530 ev_io *w; 2296 ev_io *w;
1531 2297
1532 unsigned char o_events = anfd->events; 2298 unsigned char o_events = anfd->events;
1533 unsigned char o_reify = anfd->reify; 2299 unsigned char o_reify = anfd->reify;
1534 2300
1535 anfd->reify = 0; 2301 anfd->reify = 0;
1536 2302
1537 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2303 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1538 { 2304 {
1539 anfd->events = 0; 2305 anfd->events = 0;
1540 2306
1541 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)
1542 anfd->events |= (unsigned char)w->events; 2308 anfd->events |= (unsigned char)w->events;
… …
1551 2317
1552 fdchangecnt = 0; 2318 fdchangecnt = 0;
1553} 2319}
1554 2320
1555/* something about the given fd changed */ 2321/* something about the given fd changed */
1556inline_size void 2322inline_size
2323void
1557fd_change (EV_P_ int fd, int flags) 2324fd_change (EV_P_ int fd, int flags)
1558{ 2325{
1559 unsigned char reify = anfds [fd].reify; 2326 unsigned char reify = anfds [fd].reify;
1560 anfds [fd].reify |= flags; 2327 anfds [fd].reify |= flags;
1561 2328
1562 if (expect_true (!reify)) 2329 if (ecb_expect_true (!reify))
1563 { 2330 {
1564 ++fdchangecnt; 2331 ++fdchangecnt;
1565 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2332 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1566 fdchanges [fdchangecnt - 1] = fd; 2333 fdchanges [fdchangecnt - 1] = fd;
1567 } 2334 }
1568} 2335}
1569 2336
1570/* 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 */
1571inline_speed void ecb_cold 2338inline_speed ecb_cold void
1572fd_kill (EV_P_ int fd) 2339fd_kill (EV_P_ int fd)
1573{ 2340{
1574 ev_io *w; 2341 ev_io *w;
1575 2342
1576 while ((w = (ev_io *)anfds [fd].head)) 2343 while ((w = (ev_io *)anfds [fd].head))
… …
1579 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);
1580 } 2347 }
1581} 2348}
1582 2349
1583/* check whether the given fd is actually valid, for error recovery */ 2350/* check whether the given fd is actually valid, for error recovery */
1584inline_size int ecb_cold 2351inline_size ecb_cold int
1585fd_valid (int fd) 2352fd_valid (int fd)
1586{ 2353{
1587#ifdef _WIN32 2354#ifdef _WIN32
1588 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2355 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1589#else 2356#else
1590 return fcntl (fd, F_GETFD) != -1; 2357 return fcntl (fd, F_GETFD) != -1;
1591#endif 2358#endif
1592} 2359}
1593 2360
1594/* called on EBADF to verify fds */ 2361/* called on EBADF to verify fds */
1595static void noinline ecb_cold 2362ecb_noinline ecb_cold
2363static void
1596fd_ebadf (EV_P) 2364fd_ebadf (EV_P)
1597{ 2365{
1598 int fd; 2366 int fd;
1599 2367
1600 for (fd = 0; fd < anfdmax; ++fd) 2368 for (fd = 0; fd < anfdmax; ++fd)
… …
1602 if (!fd_valid (fd) && errno == EBADF) 2370 if (!fd_valid (fd) && errno == EBADF)
1603 fd_kill (EV_A_ fd); 2371 fd_kill (EV_A_ fd);
1604} 2372}
1605 2373
1606/* 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 */
1607static void noinline ecb_cold 2375ecb_noinline ecb_cold
2376static void
1608fd_enomem (EV_P) 2377fd_enomem (EV_P)
1609{ 2378{
1610 int fd; 2379 int fd;
1611 2380
1612 for (fd = anfdmax; fd--; ) 2381 for (fd = anfdmax; fd--; )
… …
1616 break; 2385 break;
1617 } 2386 }
1618} 2387}
1619 2388
1620/* 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 */
1621static void noinline 2390ecb_noinline
2391static void
1622fd_rearm_all (EV_P) 2392fd_rearm_all (EV_P)
1623{ 2393{
1624 int fd; 2394 int fd;
1625 2395
1626 for (fd = 0; fd < anfdmax; ++fd) 2396 for (fd = 0; fd < anfdmax; ++fd)
… …
1679 ev_tstamp minat; 2449 ev_tstamp minat;
1680 ANHE *minpos; 2450 ANHE *minpos;
1681 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2451 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1682 2452
1683 /* find minimum child */ 2453 /* find minimum child */
1684 if (expect_true (pos + DHEAP - 1 < E)) 2454 if (ecb_expect_true (pos + DHEAP - 1 < E))
1685 { 2455 {
1686 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2456 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1687 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));
1688 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));
1689 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));
1690 } 2460 }
1691 else if (pos < E) 2461 else if (pos < E)
1692 { 2462 {
1693 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2463 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1694 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));
1695 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));
1696 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));
1697 } 2467 }
1698 else 2468 else
1699 break; 2469 break;
1700 2470
1701 if (ANHE_at (he) <= minat) 2471 if (ANHE_at (he) <= minat)
… …
1709 2479
1710 heap [k] = he; 2480 heap [k] = he;
1711 ev_active (ANHE_w (he)) = k; 2481 ev_active (ANHE_w (he)) = k;
1712} 2482}
1713 2483
1714#else /* 4HEAP */ 2484#else /* not 4HEAP */
1715 2485
1716#define HEAP0 1 2486#define HEAP0 1
1717#define HPARENT(k) ((k) >> 1) 2487#define HPARENT(k) ((k) >> 1)
1718#define UPHEAP_DONE(p,k) (!(p)) 2488#define UPHEAP_DONE(p,k) (!(p))
1719 2489
… …
1807 2577
1808/*****************************************************************************/ 2578/*****************************************************************************/
1809 2579
1810#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2580#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1811 2581
1812static void noinline ecb_cold 2582ecb_noinline ecb_cold
2583static void
1813evpipe_init (EV_P) 2584evpipe_init (EV_P)
1814{ 2585{
1815 if (!ev_is_active (&pipe_w)) 2586 if (!ev_is_active (&pipe_w))
1816 { 2587 {
2588 int fds [2];
2589
1817# if EV_USE_EVENTFD 2590# if EV_USE_EVENTFD
2591 fds [0] = -1;
1818 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2592 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1819 if (evfd < 0 && errno == EINVAL) 2593 if (fds [1] < 0 && errno == EINVAL)
1820 evfd = eventfd (0, 0); 2594 fds [1] = eventfd (0, 0);
1821 2595
1822 if (evfd >= 0) 2596 if (fds [1] < 0)
2597# endif
1823 { 2598 {
2599 while (pipe (fds))
2600 ev_syserr ("(libev) error creating signal/async pipe");
2601
2602 fd_intern (fds [0]);
2603 }
2604
1824 evpipe [0] = -1; 2605 evpipe [0] = fds [0];
1825 fd_intern (evfd); /* doing it twice doesn't hurt */ 2606
1826 ev_io_set (&pipe_w, evfd, EV_READ); 2607 if (evpipe [1] < 0)
2608 evpipe [1] = fds [1]; /* first call, set write fd */
2609 else
2610 {
2611 /* on subsequent calls, do not change evpipe [1] */
2612 /* so that evpipe_write can always rely on its value. */
2613 /* this branch does not do anything sensible on windows, */
2614 /* so must not be executed on windows */
2615
2616 dup2 (fds [1], evpipe [1]);
2617 close (fds [1]);
2618 }
2619
2620 fd_intern (evpipe [1]);
2621
2622 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2623 ev_io_start (EV_A_ &pipe_w);
2624 ev_unref (EV_A); /* watcher should not keep loop alive */
2625 }
2626}
2627
2628inline_speed void
2629evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2630{
2631 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2632
2633 if (ecb_expect_true (*flag))
2634 return;
2635
2636 *flag = 1;
2637 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2638
2639 pipe_write_skipped = 1;
2640
2641 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2642
2643 if (pipe_write_wanted)
2644 {
2645 int old_errno;
2646
2647 pipe_write_skipped = 0;
2648 ECB_MEMORY_FENCE_RELEASE;
2649
2650 old_errno = errno; /* save errno because write will clobber it */
2651
2652#if EV_USE_EVENTFD
2653 if (evpipe [0] < 0)
2654 {
2655 uint64_t counter = 1;
2656 write (evpipe [1], &counter, sizeof (uint64_t));
1827 } 2657 }
1828 else 2658 else
1829# endif 2659#endif
1830 { 2660 {
1831 while (pipe (evpipe)) 2661#ifdef _WIN32
1832 ev_syserr ("(libev) error creating signal/async pipe"); 2662 WSABUF buf;
1833 2663 DWORD sent;
1834 fd_intern (evpipe [0]); 2664 buf.buf = (char *)&buf;
1835 fd_intern (evpipe [1]); 2665 buf.len = 1;
1836 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2666 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1837 } 2667#else
1838
1839 ev_io_start (EV_A_ &pipe_w);
1840 ev_unref (EV_A); /* watcher should not keep loop alive */
1841 }
1842}
1843
1844inline_speed void
1845evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1846{
1847 if (expect_true (*flag))
1848 return;
1849
1850 *flag = 1;
1851
1852 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1853
1854 pipe_write_skipped = 1;
1855
1856 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1857
1858 if (pipe_write_wanted)
1859 {
1860 int old_errno;
1861
1862 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1863
1864 old_errno = errno; /* save errno because write will clobber it */
1865
1866#if EV_USE_EVENTFD
1867 if (evfd >= 0)
1868 {
1869 uint64_t counter = 1;
1870 write (evfd, &counter, sizeof (uint64_t));
1871 }
1872 else
1873#endif
1874 {
1875 /* win32 people keep sending patches that change this write() to send() */
1876 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1877 /* so when you think this write should be a send instead, please find out */
1878 /* where your send() is from - it's definitely not the microsoft send, and */
1879 /* tell me. thank you. */
1880 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1881 /* check the ev documentation on how to use this flag */
1882 write (evpipe [1], &(evpipe [1]), 1); 2668 write (evpipe [1], &(evpipe [1]), 1);
2669#endif
1883 } 2670 }
1884 2671
1885 errno = old_errno; 2672 errno = old_errno;
1886 } 2673 }
1887} 2674}
… …
1894 int i; 2681 int i;
1895 2682
1896 if (revents & EV_READ) 2683 if (revents & EV_READ)
1897 { 2684 {
1898#if EV_USE_EVENTFD 2685#if EV_USE_EVENTFD
1899 if (evfd >= 0) 2686 if (evpipe [0] < 0)
1900 { 2687 {
1901 uint64_t counter; 2688 uint64_t counter;
1902 read (evfd, &counter, sizeof (uint64_t)); 2689 read (evpipe [1], &counter, sizeof (uint64_t));
1903 } 2690 }
1904 else 2691 else
1905#endif 2692#endif
1906 { 2693 {
1907 char dummy; 2694 char dummy[4];
1908 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2695#ifdef _WIN32
2696 WSABUF buf;
2697 DWORD recvd;
2698 DWORD flags = 0;
2699 buf.buf = dummy;
2700 buf.len = sizeof (dummy);
2701 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2702#else
1909 read (evpipe [0], &dummy, 1); 2703 read (evpipe [0], &dummy, sizeof (dummy));
2704#endif
1910 } 2705 }
1911 } 2706 }
1912 2707
1913 pipe_write_skipped = 0; 2708 pipe_write_skipped = 0;
2709
2710 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1914 2711
1915#if EV_SIGNAL_ENABLE 2712#if EV_SIGNAL_ENABLE
1916 if (sig_pending) 2713 if (sig_pending)
1917 { 2714 {
1918 sig_pending = 0; 2715 sig_pending = 0;
1919 2716
2717 ECB_MEMORY_FENCE;
2718
1920 for (i = EV_NSIG - 1; i--; ) 2719 for (i = EV_NSIG - 1; i--; )
1921 if (expect_false (signals [i].pending)) 2720 if (ecb_expect_false (signals [i].pending))
1922 ev_feed_signal_event (EV_A_ i + 1); 2721 ev_feed_signal_event (EV_A_ i + 1);
1923 } 2722 }
1924#endif 2723#endif
1925 2724
1926#if EV_ASYNC_ENABLE 2725#if EV_ASYNC_ENABLE
1927 if (async_pending) 2726 if (async_pending)
1928 { 2727 {
1929 async_pending = 0; 2728 async_pending = 0;
2729
2730 ECB_MEMORY_FENCE;
1930 2731
1931 for (i = asynccnt; i--; ) 2732 for (i = asynccnt; i--; )
1932 if (asyncs [i]->sent) 2733 if (asyncs [i]->sent)
1933 { 2734 {
1934 asyncs [i]->sent = 0; 2735 asyncs [i]->sent = 0;
2736 ECB_MEMORY_FENCE_RELEASE;
1935 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2737 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1936 } 2738 }
1937 } 2739 }
1938#endif 2740#endif
1939} 2741}
1940 2742
1941/*****************************************************************************/ 2743/*****************************************************************************/
1942 2744
1943void 2745void
1944ev_feed_signal (int signum) 2746ev_feed_signal (int signum) EV_NOEXCEPT
1945{ 2747{
1946#if EV_MULTIPLICITY 2748#if EV_MULTIPLICITY
2749 EV_P;
2750 ECB_MEMORY_FENCE_ACQUIRE;
1947 EV_P = signals [signum - 1].loop; 2751 EV_A = signals [signum - 1].loop;
1948 2752
1949 if (!EV_A) 2753 if (!EV_A)
1950 return; 2754 return;
1951#endif 2755#endif
1952 2756
1953 if (!ev_active (&pipe_w))
1954 return;
1955
1956 signals [signum - 1].pending = 1; 2757 signals [signum - 1].pending = 1;
1957 evpipe_write (EV_A_ &sig_pending); 2758 evpipe_write (EV_A_ &sig_pending);
1958} 2759}
1959 2760
1960static void 2761static void
… …
1965#endif 2766#endif
1966 2767
1967 ev_feed_signal (signum); 2768 ev_feed_signal (signum);
1968} 2769}
1969 2770
1970void noinline 2771ecb_noinline
2772void
1971ev_feed_signal_event (EV_P_ int signum) 2773ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
1972{ 2774{
1973 WL w; 2775 WL w;
1974 2776
1975 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2777 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
1976 return; 2778 return;
1977 2779
1978 --signum; 2780 --signum;
1979 2781
1980#if EV_MULTIPLICITY 2782#if EV_MULTIPLICITY
1981 /* 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 */
1982 /* or, likely more useful, feeding a signal nobody is waiting for */ 2784 /* or, likely more useful, feeding a signal nobody is waiting for */
1983 2785
1984 if (expect_false (signals [signum].loop != EV_A)) 2786 if (ecb_expect_false (signals [signum].loop != EV_A))
1985 return; 2787 return;
1986#endif 2788#endif
1987 2789
1988 signals [signum].pending = 0; 2790 signals [signum].pending = 0;
2791 ECB_MEMORY_FENCE_RELEASE;
1989 2792
1990 for (w = signals [signum].head; w; w = w->next) 2793 for (w = signals [signum].head; w; w = w->next)
1991 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2794 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1992} 2795}
1993 2796
… …
2072 2875
2073#endif 2876#endif
2074 2877
2075/*****************************************************************************/ 2878/*****************************************************************************/
2076 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
2077#if EV_USE_IOCP 2932#if EV_USE_IOCP
2078# include "ev_iocp.c" 2933# include "ev_iocp.c"
2079#endif 2934#endif
2080#if EV_USE_PORT 2935#if EV_USE_PORT
2081# include "ev_port.c" 2936# include "ev_port.c"
… …
2084# include "ev_kqueue.c" 2939# include "ev_kqueue.c"
2085#endif 2940#endif
2086#if EV_USE_EPOLL 2941#if EV_USE_EPOLL
2087# include "ev_epoll.c" 2942# include "ev_epoll.c"
2088#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
2089#if EV_USE_POLL 2950#if EV_USE_POLL
2090# include "ev_poll.c" 2951# include "ev_poll.c"
2091#endif 2952#endif
2092#if EV_USE_SELECT 2953#if EV_USE_SELECT
2093# include "ev_select.c" 2954# include "ev_select.c"
2094#endif 2955#endif
2095 2956
2096int ecb_cold 2957ecb_cold int
2097ev_version_major (void) 2958ev_version_major (void) EV_NOEXCEPT
2098{ 2959{
2099 return EV_VERSION_MAJOR; 2960 return EV_VERSION_MAJOR;
2100} 2961}
2101 2962
2102int ecb_cold 2963ecb_cold int
2103ev_version_minor (void) 2964ev_version_minor (void) EV_NOEXCEPT
2104{ 2965{
2105 return EV_VERSION_MINOR; 2966 return EV_VERSION_MINOR;
2106} 2967}
2107 2968
2108/* 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 */
2109int inline_size ecb_cold 2970inline_size ecb_cold int
2110enable_secure (void) 2971enable_secure (void)
2111{ 2972{
2112#ifdef _WIN32 2973#ifdef _WIN32
2113 return 0; 2974 return 0;
2114#else 2975#else
2115 return getuid () != geteuid () 2976 return getuid () != geteuid ()
2116 || getgid () != getegid (); 2977 || getgid () != getegid ();
2117#endif 2978#endif
2118} 2979}
2119 2980
2120unsigned int ecb_cold 2981ecb_cold
2982unsigned int
2121ev_supported_backends (void) 2983ev_supported_backends (void) EV_NOEXCEPT
2122{ 2984{
2123 unsigned int flags = 0; 2985 unsigned int flags = 0;
2124 2986
2125 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2987 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2126 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2988 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2127 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;
2128 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2992 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2129 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2993 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2130 2994
2131 return flags; 2995 return flags;
2132} 2996}
2133 2997
2134unsigned int ecb_cold 2998ecb_cold
2999unsigned int
2135ev_recommended_backends (void) 3000ev_recommended_backends (void) EV_NOEXCEPT
2136{ 3001{
2137 unsigned int flags = ev_supported_backends (); 3002 unsigned int flags = ev_supported_backends ();
2138 3003
2139#ifndef __NetBSD__ 3004#ifndef __NetBSD__
2140 /* kqueue is borked on everything but netbsd apparently */ 3005 /* kqueue is borked on everything but netbsd apparently */
… …
2148#endif 3013#endif
2149#ifdef __FreeBSD__ 3014#ifdef __FreeBSD__
2150 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) */
2151#endif 3016#endif
2152 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
2153 return flags; 3027 return flags;
2154} 3028}
2155 3029
2156unsigned int ecb_cold 3030ecb_cold
3031unsigned int
2157ev_embeddable_backends (void) 3032ev_embeddable_backends (void) EV_NOEXCEPT
2158{ 3033{
2159 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3034 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2160 3035
2161 /* 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 */
2162 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 */
2163 flags &= ~EVBACKEND_EPOLL; 3038 flags &= ~EVBACKEND_EPOLL;
2164 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
2165 return flags; 3047 return flags;
2166} 3048}
2167 3049
2168unsigned int 3050unsigned int
2169ev_backend (EV_P) 3051ev_backend (EV_P) EV_NOEXCEPT
2170{ 3052{
2171 return backend; 3053 return backend;
2172} 3054}
2173 3055
2174#if EV_FEATURE_API 3056#if EV_FEATURE_API
2175unsigned int 3057unsigned int
2176ev_iteration (EV_P) 3058ev_iteration (EV_P) EV_NOEXCEPT
2177{ 3059{
2178 return loop_count; 3060 return loop_count;
2179} 3061}
2180 3062
2181unsigned int 3063unsigned int
2182ev_depth (EV_P) 3064ev_depth (EV_P) EV_NOEXCEPT
2183{ 3065{
2184 return loop_depth; 3066 return loop_depth;
2185} 3067}
2186 3068
2187void 3069void
2188ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 3070ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2189{ 3071{
2190 io_blocktime = interval; 3072 io_blocktime = interval;
2191} 3073}
2192 3074
2193void 3075void
2194ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 3076ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2195{ 3077{
2196 timeout_blocktime = interval; 3078 timeout_blocktime = interval;
2197} 3079}
2198 3080
2199void 3081void
2200ev_set_userdata (EV_P_ void *data) 3082ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2201{ 3083{
2202 userdata = data; 3084 userdata = data;
2203} 3085}
2204 3086
2205void * 3087void *
2206ev_userdata (EV_P) 3088ev_userdata (EV_P) EV_NOEXCEPT
2207{ 3089{
2208 return userdata; 3090 return userdata;
2209} 3091}
2210 3092
2211void 3093void
2212ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 3094ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2213{ 3095{
2214 invoke_cb = invoke_pending_cb; 3096 invoke_cb = invoke_pending_cb;
2215} 3097}
2216 3098
2217void 3099void
2218ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 3100ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2219{ 3101{
2220 release_cb = release; 3102 release_cb = release;
2221 acquire_cb = acquire; 3103 acquire_cb = acquire;
2222} 3104}
2223#endif 3105#endif
2224 3106
2225/* initialise a loop structure, must be zero-initialised */ 3107/* initialise a loop structure, must be zero-initialised */
2226static void noinline ecb_cold 3108ecb_noinline ecb_cold
3109static void
2227loop_init (EV_P_ unsigned int flags) 3110loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2228{ 3111{
2229 if (!backend) 3112 if (!backend)
2230 { 3113 {
2231 origflags = flags; 3114 origflags = flags;
2232 3115
… …
2277#if EV_ASYNC_ENABLE 3160#if EV_ASYNC_ENABLE
2278 async_pending = 0; 3161 async_pending = 0;
2279#endif 3162#endif
2280 pipe_write_skipped = 0; 3163 pipe_write_skipped = 0;
2281 pipe_write_wanted = 0; 3164 pipe_write_wanted = 0;
3165 evpipe [0] = -1;
3166 evpipe [1] = -1;
2282#if EV_USE_INOTIFY 3167#if EV_USE_INOTIFY
2283 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3168 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2284#endif 3169#endif
2285#if EV_USE_SIGNALFD 3170#if EV_USE_SIGNALFD
2286 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3171 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2287#endif 3172#endif
3173#if EV_USE_TIMERFD
3174 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3175#endif
2288 3176
2289 if (!(flags & EVBACKEND_MASK)) 3177 if (!(flags & EVBACKEND_MASK))
2290 flags |= ev_recommended_backends (); 3178 flags |= ev_recommended_backends ();
2291 3179
2292#if EV_USE_IOCP 3180#if EV_USE_IOCP
2293 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3181 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2294#endif 3182#endif
2295#if EV_USE_PORT 3183#if EV_USE_PORT
2296 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3184 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2297#endif 3185#endif
2298#if EV_USE_KQUEUE 3186#if EV_USE_KQUEUE
2299 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);
2300#endif 3194#endif
2301#if EV_USE_EPOLL 3195#if EV_USE_EPOLL
2302 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3196 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2303#endif 3197#endif
2304#if EV_USE_POLL 3198#if EV_USE_POLL
2305 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3199 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2306#endif 3200#endif
2307#if EV_USE_SELECT 3201#if EV_USE_SELECT
2308 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3202 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2309#endif 3203#endif
2310 3204
2311 ev_prepare_init (&pending_w, pendingcb); 3205 ev_prepare_init (&pending_w, pendingcb);
2312 3206
2313#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3207#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2316#endif 3210#endif
2317 } 3211 }
2318} 3212}
2319 3213
2320/* free up a loop structure */ 3214/* free up a loop structure */
2321void ecb_cold 3215ecb_cold
3216void
2322ev_loop_destroy (EV_P) 3217ev_loop_destroy (EV_P)
2323{ 3218{
2324 int i; 3219 int i;
2325 3220
2326#if EV_MULTIPLICITY 3221#if EV_MULTIPLICITY
… …
2329 return; 3224 return;
2330#endif 3225#endif
2331 3226
2332#if EV_CLEANUP_ENABLE 3227#if EV_CLEANUP_ENABLE
2333 /* queue cleanup watchers (and execute them) */ 3228 /* queue cleanup watchers (and execute them) */
2334 if (expect_false (cleanupcnt)) 3229 if (ecb_expect_false (cleanupcnt))
2335 { 3230 {
2336 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3231 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2337 EV_INVOKE_PENDING; 3232 EV_INVOKE_PENDING;
2338 } 3233 }
2339#endif 3234#endif
2340 3235
2341#if EV_CHILD_ENABLE 3236#if EV_CHILD_ENABLE
2342 if (ev_is_active (&childev)) 3237 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2343 { 3238 {
2344 ev_ref (EV_A); /* child watcher */ 3239 ev_ref (EV_A); /* child watcher */
2345 ev_signal_stop (EV_A_ &childev); 3240 ev_signal_stop (EV_A_ &childev);
2346 } 3241 }
2347#endif 3242#endif
… …
2349 if (ev_is_active (&pipe_w)) 3244 if (ev_is_active (&pipe_w))
2350 { 3245 {
2351 /*ev_ref (EV_A);*/ 3246 /*ev_ref (EV_A);*/
2352 /*ev_io_stop (EV_A_ &pipe_w);*/ 3247 /*ev_io_stop (EV_A_ &pipe_w);*/
2353 3248
2354#if EV_USE_EVENTFD
2355 if (evfd >= 0)
2356 close (evfd);
2357#endif
2358
2359 if (evpipe [0] >= 0)
2360 {
2361 EV_WIN32_CLOSE_FD (evpipe [0]); 3249 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2362 EV_WIN32_CLOSE_FD (evpipe [1]); 3250 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2363 }
2364 } 3251 }
2365 3252
2366#if EV_USE_SIGNALFD 3253#if EV_USE_SIGNALFD
2367 if (ev_is_active (&sigfd_w)) 3254 if (ev_is_active (&sigfd_w))
2368 close (sigfd); 3255 close (sigfd);
2369#endif 3256#endif
2370 3257
3258#if EV_USE_TIMERFD
3259 if (ev_is_active (&timerfd_w))
3260 close (timerfd);
3261#endif
3262
2371#if EV_USE_INOTIFY 3263#if EV_USE_INOTIFY
2372 if (fs_fd >= 0) 3264 if (fs_fd >= 0)
2373 close (fs_fd); 3265 close (fs_fd);
2374#endif 3266#endif
2375 3267
2376 if (backend_fd >= 0) 3268 if (backend_fd >= 0)
2377 close (backend_fd); 3269 close (backend_fd);
2378 3270
2379#if EV_USE_IOCP 3271#if EV_USE_IOCP
2380 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3272 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2381#endif 3273#endif
2382#if EV_USE_PORT 3274#if EV_USE_PORT
2383 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3275 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2384#endif 3276#endif
2385#if EV_USE_KQUEUE 3277#if EV_USE_KQUEUE
2386 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);
2387#endif 3285#endif
2388#if EV_USE_EPOLL 3286#if EV_USE_EPOLL
2389 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3287 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2390#endif 3288#endif
2391#if EV_USE_POLL 3289#if EV_USE_POLL
2392 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3290 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2393#endif 3291#endif
2394#if EV_USE_SELECT 3292#if EV_USE_SELECT
2395 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3293 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2396#endif 3294#endif
2397 3295
2398 for (i = NUMPRI; i--; ) 3296 for (i = NUMPRI; i--; )
2399 { 3297 {
2400 array_free (pending, [i]); 3298 array_free (pending, [i]);
… …
2442 3340
2443inline_size void 3341inline_size void
2444loop_fork (EV_P) 3342loop_fork (EV_P)
2445{ 3343{
2446#if EV_USE_PORT 3344#if EV_USE_PORT
2447 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3345 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2448#endif 3346#endif
2449#if EV_USE_KQUEUE 3347#if EV_USE_KQUEUE
2450 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);
2451#endif 3355#endif
2452#if EV_USE_EPOLL 3356#if EV_USE_EPOLL
2453 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3357 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2454#endif 3358#endif
2455#if EV_USE_INOTIFY 3359#if EV_USE_INOTIFY
2456 infy_fork (EV_A); 3360 infy_fork (EV_A);
2457#endif 3361#endif
2458 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
3384 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2459 if (ev_is_active (&pipe_w)) 3385 if (ev_is_active (&pipe_w))
2460 { 3386 {
2461 /* 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 */
2462 3388
2463 ev_ref (EV_A); 3389 ev_ref (EV_A);
2464 ev_io_stop (EV_A_ &pipe_w); 3390 ev_io_stop (EV_A_ &pipe_w);
2465 3391
2466#if EV_USE_EVENTFD
2467 if (evfd >= 0)
2468 close (evfd);
2469#endif
2470
2471 if (evpipe [0] >= 0) 3392 if (evpipe [0] >= 0)
2472 {
2473 EV_WIN32_CLOSE_FD (evpipe [0]); 3393 EV_WIN32_CLOSE_FD (evpipe [0]);
2474 EV_WIN32_CLOSE_FD (evpipe [1]); 3394
3395 evpipe_init (EV_A);
3396 /* iterate over everything, in case we missed something before */
3397 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2475 } 3398 }
2476 3399 #endif
2477#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2478 evpipe_init (EV_A);
2479 /* now iterate over everything, in case we missed something */
2480 pipecb (EV_A_ &pipe_w, EV_READ);
2481#endif
2482 } 3400 }
2483 3401
2484 postfork = 0; 3402 postfork = 0;
2485} 3403}
2486 3404
2487#if EV_MULTIPLICITY 3405#if EV_MULTIPLICITY
2488 3406
3407ecb_cold
2489struct ev_loop * ecb_cold 3408struct ev_loop *
2490ev_loop_new (unsigned int flags) 3409ev_loop_new (unsigned int flags) EV_NOEXCEPT
2491{ 3410{
2492 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3411 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2493 3412
2494 memset (EV_A, 0, sizeof (struct ev_loop)); 3413 memset (EV_A, 0, sizeof (struct ev_loop));
2495 loop_init (EV_A_ flags); 3414 loop_init (EV_A_ flags);
… …
2502} 3421}
2503 3422
2504#endif /* multiplicity */ 3423#endif /* multiplicity */
2505 3424
2506#if EV_VERIFY 3425#if EV_VERIFY
2507static void noinline ecb_cold 3426ecb_noinline ecb_cold
3427static void
2508verify_watcher (EV_P_ W w) 3428verify_watcher (EV_P_ W w)
2509{ 3429{
2510 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));
2511 3431
2512 if (w->pending) 3432 if (w->pending)
2513 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));
2514} 3434}
2515 3435
2516static void noinline ecb_cold 3436ecb_noinline ecb_cold
3437static void
2517verify_heap (EV_P_ ANHE *heap, int N) 3438verify_heap (EV_P_ ANHE *heap, int N)
2518{ 3439{
2519 int i; 3440 int i;
2520 3441
2521 for (i = HEAP0; i < N + HEAP0; ++i) 3442 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2526 3447
2527 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3448 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2528 } 3449 }
2529} 3450}
2530 3451
2531static void noinline ecb_cold 3452ecb_noinline ecb_cold
3453static void
2532array_verify (EV_P_ W *ws, int cnt) 3454array_verify (EV_P_ W *ws, int cnt)
2533{ 3455{
2534 while (cnt--) 3456 while (cnt--)
2535 { 3457 {
2536 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3458 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2539} 3461}
2540#endif 3462#endif
2541 3463
2542#if EV_FEATURE_API 3464#if EV_FEATURE_API
2543void ecb_cold 3465void ecb_cold
2544ev_verify (EV_P) 3466ev_verify (EV_P) EV_NOEXCEPT
2545{ 3467{
2546#if EV_VERIFY 3468#if EV_VERIFY
2547 int i; 3469 int i;
2548 WL w; 3470 WL w, w2;
2549 3471
2550 assert (activecnt >= -1); 3472 assert (activecnt >= -1);
2551 3473
2552 assert (fdchangemax >= fdchangecnt); 3474 assert (fdchangemax >= fdchangecnt);
2553 for (i = 0; i < fdchangecnt; ++i) 3475 for (i = 0; i < fdchangecnt; ++i)
2554 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3476 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2555 3477
2556 assert (anfdmax >= 0); 3478 assert (anfdmax >= 0);
2557 for (i = 0; i < anfdmax; ++i) 3479 for (i = 0; i < anfdmax; ++i)
3480 {
3481 int j = 0;
3482
2558 for (w = anfds [i].head; w; w = w->next) 3483 for (w = w2 = anfds [i].head; w; w = w->next)
2559 { 3484 {
2560 verify_watcher (EV_A_ (W)w); 3485 verify_watcher (EV_A_ (W)w);
3486
3487 if (j++ & 1)
3488 {
3489 assert (("libev: io watcher list contains a loop", w != w2));
3490 w2 = w2->next;
3491 }
3492
2561 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3493 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2562 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3494 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2563 } 3495 }
3496 }
2564 3497
2565 assert (timermax >= timercnt); 3498 assert (timermax >= timercnt);
2566 verify_heap (EV_A_ timers, timercnt); 3499 verify_heap (EV_A_ timers, timercnt);
2567 3500
2568#if EV_PERIODIC_ENABLE 3501#if EV_PERIODIC_ENABLE
… …
2614#endif 3547#endif
2615} 3548}
2616#endif 3549#endif
2617 3550
2618#if EV_MULTIPLICITY 3551#if EV_MULTIPLICITY
3552ecb_cold
2619struct ev_loop * ecb_cold 3553struct ev_loop *
2620#else 3554#else
2621int 3555int
2622#endif 3556#endif
2623ev_default_loop (unsigned int flags) 3557ev_default_loop (unsigned int flags) EV_NOEXCEPT
2624{ 3558{
2625 if (!ev_default_loop_ptr) 3559 if (!ev_default_loop_ptr)
2626 { 3560 {
2627#if EV_MULTIPLICITY 3561#if EV_MULTIPLICITY
2628 EV_P = ev_default_loop_ptr = &default_loop_struct; 3562 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2647 3581
2648 return ev_default_loop_ptr; 3582 return ev_default_loop_ptr;
2649} 3583}
2650 3584
2651void 3585void
2652ev_loop_fork (EV_P) 3586ev_loop_fork (EV_P) EV_NOEXCEPT
2653{ 3587{
2654 postfork = 1; /* must be in line with ev_default_fork */ 3588 postfork = 1;
2655} 3589}
2656 3590
2657/*****************************************************************************/ 3591/*****************************************************************************/
2658 3592
2659void 3593void
… …
2661{ 3595{
2662 EV_CB_INVOKE ((W)w, revents); 3596 EV_CB_INVOKE ((W)w, revents);
2663} 3597}
2664 3598
2665unsigned int 3599unsigned int
2666ev_pending_count (EV_P) 3600ev_pending_count (EV_P) EV_NOEXCEPT
2667{ 3601{
2668 int pri; 3602 int pri;
2669 unsigned int count = 0; 3603 unsigned int count = 0;
2670 3604
2671 for (pri = NUMPRI; pri--; ) 3605 for (pri = NUMPRI; pri--; )
2672 count += pendingcnt [pri]; 3606 count += pendingcnt [pri];
2673 3607
2674 return count; 3608 return count;
2675} 3609}
2676 3610
2677void noinline 3611ecb_noinline
3612void
2678ev_invoke_pending (EV_P) 3613ev_invoke_pending (EV_P)
2679{ 3614{
2680 int pri; 3615 pendingpri = NUMPRI;
2681 3616
2682 for (pri = NUMPRI; pri--; ) 3617 do
3618 {
3619 --pendingpri;
3620
3621 /* pendingpri possibly gets modified in the inner loop */
2683 while (pendingcnt [pri]) 3622 while (pendingcnt [pendingpri])
2684 { 3623 {
2685 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3624 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2686 3625
2687 p->w->pending = 0; 3626 p->w->pending = 0;
2688 EV_CB_INVOKE (p->w, p->events); 3627 EV_CB_INVOKE (p->w, p->events);
2689 EV_FREQUENT_CHECK; 3628 EV_FREQUENT_CHECK;
2690 } 3629 }
3630 }
3631 while (pendingpri);
2691} 3632}
2692 3633
2693#if EV_IDLE_ENABLE 3634#if EV_IDLE_ENABLE
2694/* make idle watchers pending. this handles the "call-idle */ 3635/* make idle watchers pending. this handles the "call-idle */
2695/* only when higher priorities are idle" logic */ 3636/* only when higher priorities are idle" logic */
2696inline_size void 3637inline_size void
2697idle_reify (EV_P) 3638idle_reify (EV_P)
2698{ 3639{
2699 if (expect_false (idleall)) 3640 if (ecb_expect_false (idleall))
2700 { 3641 {
2701 int pri; 3642 int pri;
2702 3643
2703 for (pri = NUMPRI; pri--; ) 3644 for (pri = NUMPRI; pri--; )
2704 { 3645 {
… …
2734 { 3675 {
2735 ev_at (w) += w->repeat; 3676 ev_at (w) += w->repeat;
2736 if (ev_at (w) < mn_now) 3677 if (ev_at (w) < mn_now)
2737 ev_at (w) = mn_now; 3678 ev_at (w) = mn_now;
2738 3679
2739 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.)));
2740 3681
2741 ANHE_at_cache (timers [HEAP0]); 3682 ANHE_at_cache (timers [HEAP0]);
2742 downheap (timers, timercnt, HEAP0); 3683 downheap (timers, timercnt, HEAP0);
2743 } 3684 }
2744 else 3685 else
… …
2753 } 3694 }
2754} 3695}
2755 3696
2756#if EV_PERIODIC_ENABLE 3697#if EV_PERIODIC_ENABLE
2757 3698
2758static void noinline 3699ecb_noinline
3700static void
2759periodic_recalc (EV_P_ ev_periodic *w) 3701periodic_recalc (EV_P_ ev_periodic *w)
2760{ 3702{
2761 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3703 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2762 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);
2763 3705
… …
2765 while (at <= ev_rt_now) 3707 while (at <= ev_rt_now)
2766 { 3708 {
2767 ev_tstamp nat = at + w->interval; 3709 ev_tstamp nat = at + w->interval;
2768 3710
2769 /* when resolution fails us, we use ev_rt_now */ 3711 /* when resolution fails us, we use ev_rt_now */
2770 if (expect_false (nat == at)) 3712 if (ecb_expect_false (nat == at))
2771 { 3713 {
2772 at = ev_rt_now; 3714 at = ev_rt_now;
2773 break; 3715 break;
2774 } 3716 }
2775 3717
… …
2785{ 3727{
2786 EV_FREQUENT_CHECK; 3728 EV_FREQUENT_CHECK;
2787 3729
2788 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3730 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2789 { 3731 {
2790 int feed_count = 0;
2791
2792 do 3732 do
2793 { 3733 {
2794 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3734 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2795 3735
2796 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3736 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2823 } 3763 }
2824} 3764}
2825 3765
2826/* simply recalculate all periodics */ 3766/* simply recalculate all periodics */
2827/* 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? */
2828static void noinline ecb_cold 3768ecb_noinline ecb_cold
3769static void
2829periodics_reschedule (EV_P) 3770periodics_reschedule (EV_P)
2830{ 3771{
2831 int i; 3772 int i;
2832 3773
2833 /* adjust periodics after time jump */ 3774 /* adjust periodics after time jump */
… …
2846 reheap (periodics, periodiccnt); 3787 reheap (periodics, periodiccnt);
2847} 3788}
2848#endif 3789#endif
2849 3790
2850/* adjust all timers by a given offset */ 3791/* adjust all timers by a given offset */
2851static void noinline ecb_cold 3792ecb_noinline ecb_cold
3793static void
2852timers_reschedule (EV_P_ ev_tstamp adjust) 3794timers_reschedule (EV_P_ ev_tstamp adjust)
2853{ 3795{
2854 int i; 3796 int i;
2855 3797
2856 for (i = 0; i < timercnt; ++i) 3798 for (i = 0; i < timercnt; ++i)
… …
2865/* also detect if there was a timejump, and act accordingly */ 3807/* also detect if there was a timejump, and act accordingly */
2866inline_speed void 3808inline_speed void
2867time_update (EV_P_ ev_tstamp max_block) 3809time_update (EV_P_ ev_tstamp max_block)
2868{ 3810{
2869#if EV_USE_MONOTONIC 3811#if EV_USE_MONOTONIC
2870 if (expect_true (have_monotonic)) 3812 if (ecb_expect_true (have_monotonic))
2871 { 3813 {
2872 int i; 3814 int i;
2873 ev_tstamp odiff = rtmn_diff; 3815 ev_tstamp odiff = rtmn_diff;
2874 3816
2875 mn_now = get_clock (); 3817 mn_now = get_clock ();
2876 3818
2877 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3819 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
2878 /* interpolate in the meantime */ 3820 /* interpolate in the meantime */
2879 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)))
2880 { 3822 {
2881 ev_rt_now = rtmn_diff + mn_now; 3823 ev_rt_now = rtmn_diff + mn_now;
2882 return; 3824 return;
2883 } 3825 }
2884 3826
… …
2898 ev_tstamp diff; 3840 ev_tstamp diff;
2899 rtmn_diff = ev_rt_now - mn_now; 3841 rtmn_diff = ev_rt_now - mn_now;
2900 3842
2901 diff = odiff - rtmn_diff; 3843 diff = odiff - rtmn_diff;
2902 3844
2903 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)))
2904 return; /* all is well */ 3846 return; /* all is well */
2905 3847
2906 ev_rt_now = ev_time (); 3848 ev_rt_now = ev_time ();
2907 mn_now = get_clock (); 3849 mn_now = get_clock ();
2908 now_floor = mn_now; 3850 now_floor = mn_now;
… …
2917 else 3859 else
2918#endif 3860#endif
2919 { 3861 {
2920 ev_rt_now = ev_time (); 3862 ev_rt_now = ev_time ();
2921 3863
2922 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)))
2923 { 3865 {
2924 /* 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 */
2925 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3867 timers_reschedule (EV_A_ ev_rt_now - mn_now);
2926#if EV_PERIODIC_ENABLE 3868#if EV_PERIODIC_ENABLE
2927 periodics_reschedule (EV_A); 3869 periodics_reschedule (EV_A);
… …
2950#if EV_VERIFY >= 2 3892#if EV_VERIFY >= 2
2951 ev_verify (EV_A); 3893 ev_verify (EV_A);
2952#endif 3894#endif
2953 3895
2954#ifndef _WIN32 3896#ifndef _WIN32
2955 if (expect_false (curpid)) /* penalise the forking check even more */ 3897 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
2956 if (expect_false (getpid () != curpid)) 3898 if (ecb_expect_false (getpid () != curpid))
2957 { 3899 {
2958 curpid = getpid (); 3900 curpid = getpid ();
2959 postfork = 1; 3901 postfork = 1;
2960 } 3902 }
2961#endif 3903#endif
2962 3904
2963#if EV_FORK_ENABLE 3905#if EV_FORK_ENABLE
2964 /* we might have forked, so queue fork handlers */ 3906 /* we might have forked, so queue fork handlers */
2965 if (expect_false (postfork)) 3907 if (ecb_expect_false (postfork))
2966 if (forkcnt) 3908 if (forkcnt)
2967 { 3909 {
2968 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3910 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2969 EV_INVOKE_PENDING; 3911 EV_INVOKE_PENDING;
2970 } 3912 }
2971#endif 3913#endif
2972 3914
2973#if EV_PREPARE_ENABLE 3915#if EV_PREPARE_ENABLE
2974 /* queue prepare watchers (and execute them) */ 3916 /* queue prepare watchers (and execute them) */
2975 if (expect_false (preparecnt)) 3917 if (ecb_expect_false (preparecnt))
2976 { 3918 {
2977 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3919 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2978 EV_INVOKE_PENDING; 3920 EV_INVOKE_PENDING;
2979 } 3921 }
2980#endif 3922#endif
2981 3923
2982 if (expect_false (loop_done)) 3924 if (ecb_expect_false (loop_done))
2983 break; 3925 break;
2984 3926
2985 /* we might have forked, so reify kernel state if necessary */ 3927 /* we might have forked, so reify kernel state if necessary */
2986 if (expect_false (postfork)) 3928 if (ecb_expect_false (postfork))
2987 loop_fork (EV_A); 3929 loop_fork (EV_A);
2988 3930
2989 /* update fd-related kernel structures */ 3931 /* update fd-related kernel structures */
2990 fd_reify (EV_A); 3932 fd_reify (EV_A);
2991 3933
… …
2996 3938
2997 /* remember old timestamp for io_blocktime calculation */ 3939 /* remember old timestamp for io_blocktime calculation */
2998 ev_tstamp prev_mn_now = mn_now; 3940 ev_tstamp prev_mn_now = mn_now;
2999 3941
3000 /* update time to cancel out callback processing overhead */ 3942 /* update time to cancel out callback processing overhead */
3001 time_update (EV_A_ 1e100); 3943 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3002 3944
3003 /* from now on, we want a pipe-wake-up */ 3945 /* from now on, we want a pipe-wake-up */
3004 pipe_write_wanted = 1; 3946 pipe_write_wanted = 1;
3005 3947
3006 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 */
3007 3949
3008 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3950 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3009 { 3951 {
3010 waittime = MAX_BLOCKTIME; 3952 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3011 3953
3012 if (timercnt) 3954 if (timercnt)
3013 { 3955 {
3014 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3956 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3015 if (waittime > to) waittime = to; 3957 if (waittime > to) waittime = to;
… …
3022 if (waittime > to) waittime = to; 3964 if (waittime > to) waittime = to;
3023 } 3965 }
3024#endif 3966#endif
3025 3967
3026 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3968 /* don't let timeouts decrease the waittime below timeout_blocktime */
3027 if (expect_false (waittime < timeout_blocktime)) 3969 if (ecb_expect_false (waittime < timeout_blocktime))
3028 waittime = timeout_blocktime; 3970 waittime = timeout_blocktime;
3029 3971
3030 /* at this point, we NEED to wait, so we have to ensure */ 3972 /* now there are two more special cases left, either we have
3031 /* 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 */
3032 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.)
3033 waittime = backend_mintime; 3980 : backend_mintime;
3034 3981
3035 /* extra check because io_blocktime is commonly 0 */ 3982 /* extra check because io_blocktime is commonly 0 */
3036 if (expect_false (io_blocktime)) 3983 if (ecb_expect_false (io_blocktime))
3037 { 3984 {
3038 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3985 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3039 3986
3040 if (sleeptime > waittime - backend_mintime) 3987 if (sleeptime > waittime - backend_mintime)
3041 sleeptime = waittime - backend_mintime; 3988 sleeptime = waittime - backend_mintime;
3042 3989
3043 if (expect_true (sleeptime > 0.)) 3990 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3044 { 3991 {
3045 ev_sleep (sleeptime); 3992 ev_sleep (sleeptime);
3046 waittime -= sleeptime; 3993 waittime -= sleeptime;
3047 } 3994 }
3048 } 3995 }
… …
3055 backend_poll (EV_A_ waittime); 4002 backend_poll (EV_A_ waittime);
3056 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 4003 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057 4004
3058 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 4005 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059 4006
4007 ECB_MEMORY_FENCE_ACQUIRE;
3060 if (pipe_write_skipped) 4008 if (pipe_write_skipped)
3061 { 4009 {
3062 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)));
3063 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4011 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064 } 4012 }
3065 4013
3066
3067 /* update ev_rt_now, do magic */ 4014 /* update ev_rt_now, do magic */
3068 time_update (EV_A_ waittime + sleeptime); 4015 time_update (EV_A_ waittime + sleeptime);
3069 } 4016 }
3070 4017
3071 /* queue pending timers and reschedule them */ 4018 /* queue pending timers and reschedule them */
… …
3079 idle_reify (EV_A); 4026 idle_reify (EV_A);
3080#endif 4027#endif
3081 4028
3082#if EV_CHECK_ENABLE 4029#if EV_CHECK_ENABLE
3083 /* queue check watchers, to be executed first */ 4030 /* queue check watchers, to be executed first */
3084 if (expect_false (checkcnt)) 4031 if (ecb_expect_false (checkcnt))
3085 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4032 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3086#endif 4033#endif
3087 4034
3088 EV_INVOKE_PENDING; 4035 EV_INVOKE_PENDING;
3089 } 4036 }
3090 while (expect_true ( 4037 while (ecb_expect_true (
3091 activecnt 4038 activecnt
3092 && !loop_done 4039 && !loop_done
3093 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4040 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3094 )); 4041 ));
3095 4042
… …
3102 4049
3103 return activecnt; 4050 return activecnt;
3104} 4051}
3105 4052
3106void 4053void
3107ev_break (EV_P_ int how) 4054ev_break (EV_P_ int how) EV_NOEXCEPT
3108{ 4055{
3109 loop_done = how; 4056 loop_done = how;
3110} 4057}
3111 4058
3112void 4059void
3113ev_ref (EV_P) 4060ev_ref (EV_P) EV_NOEXCEPT
3114{ 4061{
3115 ++activecnt; 4062 ++activecnt;
3116} 4063}
3117 4064
3118void 4065void
3119ev_unref (EV_P) 4066ev_unref (EV_P) EV_NOEXCEPT
3120{ 4067{
3121 --activecnt; 4068 --activecnt;
3122} 4069}
3123 4070
3124void 4071void
3125ev_now_update (EV_P) 4072ev_now_update (EV_P) EV_NOEXCEPT
3126{ 4073{
3127 time_update (EV_A_ 1e100); 4074 time_update (EV_A_ EV_TSTAMP_HUGE);
3128} 4075}
3129 4076
3130void 4077void
3131ev_suspend (EV_P) 4078ev_suspend (EV_P) EV_NOEXCEPT
3132{ 4079{
3133 ev_now_update (EV_A); 4080 ev_now_update (EV_A);
3134} 4081}
3135 4082
3136void 4083void
3137ev_resume (EV_P) 4084ev_resume (EV_P) EV_NOEXCEPT
3138{ 4085{
3139 ev_tstamp mn_prev = mn_now; 4086 ev_tstamp mn_prev = mn_now;
3140 4087
3141 ev_now_update (EV_A); 4088 ev_now_update (EV_A);
3142 timers_reschedule (EV_A_ mn_now - mn_prev); 4089 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3159inline_size void 4106inline_size void
3160wlist_del (WL *head, WL elem) 4107wlist_del (WL *head, WL elem)
3161{ 4108{
3162 while (*head) 4109 while (*head)
3163 { 4110 {
3164 if (expect_true (*head == elem)) 4111 if (ecb_expect_true (*head == elem))
3165 { 4112 {
3166 *head = elem->next; 4113 *head = elem->next;
3167 break; 4114 break;
3168 } 4115 }
3169 4116
… …
3181 w->pending = 0; 4128 w->pending = 0;
3182 } 4129 }
3183} 4130}
3184 4131
3185int 4132int
3186ev_clear_pending (EV_P_ void *w) 4133ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3187{ 4134{
3188 W w_ = (W)w; 4135 W w_ = (W)w;
3189 int pending = w_->pending; 4136 int pending = w_->pending;
3190 4137
3191 if (expect_true (pending)) 4138 if (ecb_expect_true (pending))
3192 { 4139 {
3193 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4140 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3194 p->w = (W)&pending_w; 4141 p->w = (W)&pending_w;
3195 w_->pending = 0; 4142 w_->pending = 0;
3196 return p->events; 4143 return p->events;
… …
3223 w->active = 0; 4170 w->active = 0;
3224} 4171}
3225 4172
3226/*****************************************************************************/ 4173/*****************************************************************************/
3227 4174
3228void noinline 4175ecb_noinline
4176void
3229ev_io_start (EV_P_ ev_io *w) 4177ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3230{ 4178{
3231 int fd = w->fd; 4179 int fd = w->fd;
3232 4180
3233 if (expect_false (ev_is_active (w))) 4181 if (ecb_expect_false (ev_is_active (w)))
3234 return; 4182 return;
3235 4183
3236 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4184 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3237 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))));
3238 4186
4187#if EV_VERIFY >= 2
4188 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4189#endif
3239 EV_FREQUENT_CHECK; 4190 EV_FREQUENT_CHECK;
3240 4191
3241 ev_start (EV_A_ (W)w, 1); 4192 ev_start (EV_A_ (W)w, 1);
3242 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4193 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3243 wlist_add (&anfds[fd].head, (WL)w); 4194 wlist_add (&anfds[fd].head, (WL)w);
4195
4196 /* common bug, apparently */
4197 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3244 4198
3245 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 4199 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3246 w->events &= ~EV__IOFDSET; 4200 w->events &= ~EV__IOFDSET;
3247 4201
3248 EV_FREQUENT_CHECK; 4202 EV_FREQUENT_CHECK;
3249} 4203}
3250 4204
3251void noinline 4205ecb_noinline
4206void
3252ev_io_stop (EV_P_ ev_io *w) 4207ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3253{ 4208{
3254 clear_pending (EV_A_ (W)w); 4209 clear_pending (EV_A_ (W)w);
3255 if (expect_false (!ev_is_active (w))) 4210 if (ecb_expect_false (!ev_is_active (w)))
3256 return; 4211 return;
3257 4212
3258 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));
3259 4214
4215#if EV_VERIFY >= 2
4216 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4217#endif
3260 EV_FREQUENT_CHECK; 4218 EV_FREQUENT_CHECK;
3261 4219
3262 wlist_del (&anfds[w->fd].head, (WL)w); 4220 wlist_del (&anfds[w->fd].head, (WL)w);
3263 ev_stop (EV_A_ (W)w); 4221 ev_stop (EV_A_ (W)w);
3264 4222
3265 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4223 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3266 4224
3267 EV_FREQUENT_CHECK; 4225 EV_FREQUENT_CHECK;
3268} 4226}
3269 4227
3270void noinline 4228ecb_noinline
4229void
3271ev_timer_start (EV_P_ ev_timer *w) 4230ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3272{ 4231{
3273 if (expect_false (ev_is_active (w))) 4232 if (ecb_expect_false (ev_is_active (w)))
3274 return; 4233 return;
3275 4234
3276 ev_at (w) += mn_now; 4235 ev_at (w) += mn_now;
3277 4236
3278 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.));
3279 4238
3280 EV_FREQUENT_CHECK; 4239 EV_FREQUENT_CHECK;
3281 4240
3282 ++timercnt; 4241 ++timercnt;
3283 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4242 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3284 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4243 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3285 ANHE_w (timers [ev_active (w)]) = (WT)w; 4244 ANHE_w (timers [ev_active (w)]) = (WT)w;
3286 ANHE_at_cache (timers [ev_active (w)]); 4245 ANHE_at_cache (timers [ev_active (w)]);
3287 upheap (timers, ev_active (w)); 4246 upheap (timers, ev_active (w));
3288 4247
3289 EV_FREQUENT_CHECK; 4248 EV_FREQUENT_CHECK;
3290 4249
3291 /*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));*/
3292} 4251}
3293 4252
3294void noinline 4253ecb_noinline
4254void
3295ev_timer_stop (EV_P_ ev_timer *w) 4255ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3296{ 4256{
3297 clear_pending (EV_A_ (W)w); 4257 clear_pending (EV_A_ (W)w);
3298 if (expect_false (!ev_is_active (w))) 4258 if (ecb_expect_false (!ev_is_active (w)))
3299 return; 4259 return;
3300 4260
3301 EV_FREQUENT_CHECK; 4261 EV_FREQUENT_CHECK;
3302 4262
3303 { 4263 {
… …
3305 4265
3306 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));
3307 4267
3308 --timercnt; 4268 --timercnt;
3309 4269
3310 if (expect_true (active < timercnt + HEAP0)) 4270 if (ecb_expect_true (active < timercnt + HEAP0))
3311 { 4271 {
3312 timers [active] = timers [timercnt + HEAP0]; 4272 timers [active] = timers [timercnt + HEAP0];
3313 adjustheap (timers, timercnt, active); 4273 adjustheap (timers, timercnt, active);
3314 } 4274 }
3315 } 4275 }
… …
3319 ev_stop (EV_A_ (W)w); 4279 ev_stop (EV_A_ (W)w);
3320 4280
3321 EV_FREQUENT_CHECK; 4281 EV_FREQUENT_CHECK;
3322} 4282}
3323 4283
3324void noinline 4284ecb_noinline
4285void
3325ev_timer_again (EV_P_ ev_timer *w) 4286ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3326{ 4287{
3327 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3328 4289
3329 clear_pending (EV_A_ (W)w); 4290 clear_pending (EV_A_ (W)w);
3330 4291
… …
3347 4308
3348 EV_FREQUENT_CHECK; 4309 EV_FREQUENT_CHECK;
3349} 4310}
3350 4311
3351ev_tstamp 4312ev_tstamp
3352ev_timer_remaining (EV_P_ ev_timer *w) 4313ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3353{ 4314{
3354 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.));
3355} 4316}
3356 4317
3357#if EV_PERIODIC_ENABLE 4318#if EV_PERIODIC_ENABLE
3358void noinline 4319ecb_noinline
4320void
3359ev_periodic_start (EV_P_ ev_periodic *w) 4321ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3360{ 4322{
3361 if (expect_false (ev_is_active (w))) 4323 if (ecb_expect_false (ev_is_active (w)))
3362 return; 4324 return;
4325
4326#if EV_USE_TIMERFD
4327 if (timerfd == -2)
4328 evtimerfd_init (EV_A);
4329#endif
3363 4330
3364 if (w->reschedule_cb) 4331 if (w->reschedule_cb)
3365 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4332 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3366 else if (w->interval) 4333 else if (w->interval)
3367 { 4334 {
… …
3373 4340
3374 EV_FREQUENT_CHECK; 4341 EV_FREQUENT_CHECK;
3375 4342
3376 ++periodiccnt; 4343 ++periodiccnt;
3377 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4344 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3378 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4345 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3379 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4346 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3380 ANHE_at_cache (periodics [ev_active (w)]); 4347 ANHE_at_cache (periodics [ev_active (w)]);
3381 upheap (periodics, ev_active (w)); 4348 upheap (periodics, ev_active (w));
3382 4349
3383 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
3384 4351
3385 /*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));*/
3386} 4353}
3387 4354
3388void noinline 4355ecb_noinline
4356void
3389ev_periodic_stop (EV_P_ ev_periodic *w) 4357ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3390{ 4358{
3391 clear_pending (EV_A_ (W)w); 4359 clear_pending (EV_A_ (W)w);
3392 if (expect_false (!ev_is_active (w))) 4360 if (ecb_expect_false (!ev_is_active (w)))
3393 return; 4361 return;
3394 4362
3395 EV_FREQUENT_CHECK; 4363 EV_FREQUENT_CHECK;
3396 4364
3397 { 4365 {
… …
3399 4367
3400 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));
3401 4369
3402 --periodiccnt; 4370 --periodiccnt;
3403 4371
3404 if (expect_true (active < periodiccnt + HEAP0)) 4372 if (ecb_expect_true (active < periodiccnt + HEAP0))
3405 { 4373 {
3406 periodics [active] = periodics [periodiccnt + HEAP0]; 4374 periodics [active] = periodics [periodiccnt + HEAP0];
3407 adjustheap (periodics, periodiccnt, active); 4375 adjustheap (periodics, periodiccnt, active);
3408 } 4376 }
3409 } 4377 }
… …
3411 ev_stop (EV_A_ (W)w); 4379 ev_stop (EV_A_ (W)w);
3412 4380
3413 EV_FREQUENT_CHECK; 4381 EV_FREQUENT_CHECK;
3414} 4382}
3415 4383
3416void noinline 4384ecb_noinline
4385void
3417ev_periodic_again (EV_P_ ev_periodic *w) 4386ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3418{ 4387{
3419 /* TODO: use adjustheap and recalculation */ 4388 /* TODO: use adjustheap and recalculation */
3420 ev_periodic_stop (EV_A_ w); 4389 ev_periodic_stop (EV_A_ w);
3421 ev_periodic_start (EV_A_ w); 4390 ev_periodic_start (EV_A_ w);
3422} 4391}
… …
3426# define SA_RESTART 0 4395# define SA_RESTART 0
3427#endif 4396#endif
3428 4397
3429#if EV_SIGNAL_ENABLE 4398#if EV_SIGNAL_ENABLE
3430 4399
3431void noinline 4400ecb_noinline
4401void
3432ev_signal_start (EV_P_ ev_signal *w) 4402ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3433{ 4403{
3434 if (expect_false (ev_is_active (w))) 4404 if (ecb_expect_false (ev_is_active (w)))
3435 return; 4405 return;
3436 4406
3437 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));
3438 4408
3439#if EV_MULTIPLICITY 4409#if EV_MULTIPLICITY
3440 assert (("libev: a signal must not be attached to two different loops", 4410 assert (("libev: a signal must not be attached to two different loops",
3441 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4411 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3442 4412
3443 signals [w->signum - 1].loop = EV_A; 4413 signals [w->signum - 1].loop = EV_A;
4414 ECB_MEMORY_FENCE_RELEASE;
3444#endif 4415#endif
3445 4416
3446 EV_FREQUENT_CHECK; 4417 EV_FREQUENT_CHECK;
3447 4418
3448#if EV_USE_SIGNALFD 4419#if EV_USE_SIGNALFD
… …
3507 } 4478 }
3508 4479
3509 EV_FREQUENT_CHECK; 4480 EV_FREQUENT_CHECK;
3510} 4481}
3511 4482
3512void noinline 4483ecb_noinline
4484void
3513ev_signal_stop (EV_P_ ev_signal *w) 4485ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3514{ 4486{
3515 clear_pending (EV_A_ (W)w); 4487 clear_pending (EV_A_ (W)w);
3516 if (expect_false (!ev_is_active (w))) 4488 if (ecb_expect_false (!ev_is_active (w)))
3517 return; 4489 return;
3518 4490
3519 EV_FREQUENT_CHECK; 4491 EV_FREQUENT_CHECK;
3520 4492
3521 wlist_del (&signals [w->signum - 1].head, (WL)w); 4493 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3549#endif 4521#endif
3550 4522
3551#if EV_CHILD_ENABLE 4523#if EV_CHILD_ENABLE
3552 4524
3553void 4525void
3554ev_child_start (EV_P_ ev_child *w) 4526ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3555{ 4527{
3556#if EV_MULTIPLICITY 4528#if EV_MULTIPLICITY
3557 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));
3558#endif 4530#endif
3559 if (expect_false (ev_is_active (w))) 4531 if (ecb_expect_false (ev_is_active (w)))
3560 return; 4532 return;
3561 4533
3562 EV_FREQUENT_CHECK; 4534 EV_FREQUENT_CHECK;
3563 4535
3564 ev_start (EV_A_ (W)w, 1); 4536 ev_start (EV_A_ (W)w, 1);
… …
3566 4538
3567 EV_FREQUENT_CHECK; 4539 EV_FREQUENT_CHECK;
3568} 4540}
3569 4541
3570void 4542void
3571ev_child_stop (EV_P_ ev_child *w) 4543ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3572{ 4544{
3573 clear_pending (EV_A_ (W)w); 4545 clear_pending (EV_A_ (W)w);
3574 if (expect_false (!ev_is_active (w))) 4546 if (ecb_expect_false (!ev_is_active (w)))
3575 return; 4547 return;
3576 4548
3577 EV_FREQUENT_CHECK; 4549 EV_FREQUENT_CHECK;
3578 4550
3579 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4551 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3593 4565
3594#define DEF_STAT_INTERVAL 5.0074891 4566#define DEF_STAT_INTERVAL 5.0074891
3595#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4567#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3596#define MIN_STAT_INTERVAL 0.1074891 4568#define MIN_STAT_INTERVAL 0.1074891
3597 4569
3598static 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);
3599 4571
3600#if EV_USE_INOTIFY 4572#if EV_USE_INOTIFY
3601 4573
3602/* 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 */
3603# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4575# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3604 4576
3605static void noinline 4577ecb_noinline
4578static void
3606infy_add (EV_P_ ev_stat *w) 4579infy_add (EV_P_ ev_stat *w)
3607{ 4580{
3608 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);
3609 4585
3610 if (w->wd >= 0) 4586 if (w->wd >= 0)
3611 { 4587 {
3612 struct statfs sfs; 4588 struct statfs sfs;
3613 4589
… …
3617 4593
3618 if (!fs_2625) 4594 if (!fs_2625)
3619 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4595 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3620 else if (!statfs (w->path, &sfs) 4596 else if (!statfs (w->path, &sfs)
3621 && (sfs.f_type == 0x1373 /* devfs */ 4597 && (sfs.f_type == 0x1373 /* devfs */
4598 || sfs.f_type == 0x4006 /* fat */
4599 || sfs.f_type == 0x4d44 /* msdos */
3622 || 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 */
3623 || sfs.f_type == 0x3153464a /* jfs */ 4604 || sfs.f_type == 0x3153464a /* jfs */
4605 || sfs.f_type == 0x9123683e /* btrfs */
3624 || sfs.f_type == 0x52654973 /* reiser3 */ 4606 || sfs.f_type == 0x52654973 /* reiser3 */
3625 || sfs.f_type == 0x01021994 /* tempfs */ 4607 || sfs.f_type == 0x01021994 /* tmpfs */
3626 || sfs.f_type == 0x58465342 /* xfs */)) 4608 || sfs.f_type == 0x58465342 /* xfs */))
3627 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4609 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3628 else 4610 else
3629 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 */
3630 } 4612 }
… …
3665 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4647 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3666 ev_timer_again (EV_A_ &w->timer); 4648 ev_timer_again (EV_A_ &w->timer);
3667 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4649 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3668} 4650}
3669 4651
3670static void noinline 4652ecb_noinline
4653static void
3671infy_del (EV_P_ ev_stat *w) 4654infy_del (EV_P_ ev_stat *w)
3672{ 4655{
3673 int slot; 4656 int slot;
3674 int wd = w->wd; 4657 int wd = w->wd;
3675 4658
… …
3682 4665
3683 /* remove this watcher, if others are watching it, they will rearm */ 4666 /* remove this watcher, if others are watching it, they will rearm */
3684 inotify_rm_watch (fs_fd, wd); 4667 inotify_rm_watch (fs_fd, wd);
3685} 4668}
3686 4669
3687static void noinline 4670ecb_noinline
4671static void
3688infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4672infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3689{ 4673{
3690 if (slot < 0) 4674 if (slot < 0)
3691 /* overflow, need to check for all hash slots */ 4675 /* overflow, need to check for all hash slots */
3692 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4676 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3728 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4712 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3729 ofs += sizeof (struct inotify_event) + ev->len; 4713 ofs += sizeof (struct inotify_event) + ev->len;
3730 } 4714 }
3731} 4715}
3732 4716
3733inline_size void ecb_cold 4717inline_size ecb_cold
4718void
3734ev_check_2625 (EV_P) 4719ev_check_2625 (EV_P)
3735{ 4720{
3736 /* kernels < 2.6.25 are borked 4721 /* kernels < 2.6.25 are borked
3737 * 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
3738 */ 4723 */
… …
3828#else 4813#else
3829# define EV_LSTAT(p,b) lstat (p, b) 4814# define EV_LSTAT(p,b) lstat (p, b)
3830#endif 4815#endif
3831 4816
3832void 4817void
3833ev_stat_stat (EV_P_ ev_stat *w) 4818ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3834{ 4819{
3835 if (lstat (w->path, &w->attr) < 0) 4820 if (lstat (w->path, &w->attr) < 0)
3836 w->attr.st_nlink = 0; 4821 w->attr.st_nlink = 0;
3837 else if (!w->attr.st_nlink) 4822 else if (!w->attr.st_nlink)
3838 w->attr.st_nlink = 1; 4823 w->attr.st_nlink = 1;
3839} 4824}
3840 4825
3841static void noinline 4826ecb_noinline
4827static void
3842stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4828stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3843{ 4829{
3844 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4830 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3845 4831
3846 ev_statdata prev = w->attr; 4832 ev_statdata prev = w->attr;
… …
3877 ev_feed_event (EV_A_ w, EV_STAT); 4863 ev_feed_event (EV_A_ w, EV_STAT);
3878 } 4864 }
3879} 4865}
3880 4866
3881void 4867void
3882ev_stat_start (EV_P_ ev_stat *w) 4868ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3883{ 4869{
3884 if (expect_false (ev_is_active (w))) 4870 if (ecb_expect_false (ev_is_active (w)))
3885 return; 4871 return;
3886 4872
3887 ev_stat_stat (EV_A_ w); 4873 ev_stat_stat (EV_A_ w);
3888 4874
3889 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4875 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
3908 4894
3909 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
3910} 4896}
3911 4897
3912void 4898void
3913ev_stat_stop (EV_P_ ev_stat *w) 4899ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
3914{ 4900{
3915 clear_pending (EV_A_ (W)w); 4901 clear_pending (EV_A_ (W)w);
3916 if (expect_false (!ev_is_active (w))) 4902 if (ecb_expect_false (!ev_is_active (w)))
3917 return; 4903 return;
3918 4904
3919 EV_FREQUENT_CHECK; 4905 EV_FREQUENT_CHECK;
3920 4906
3921#if EV_USE_INOTIFY 4907#if EV_USE_INOTIFY
… …
3934} 4920}
3935#endif 4921#endif
3936 4922
3937#if EV_IDLE_ENABLE 4923#if EV_IDLE_ENABLE
3938void 4924void
3939ev_idle_start (EV_P_ ev_idle *w) 4925ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
3940{ 4926{
3941 if (expect_false (ev_is_active (w))) 4927 if (ecb_expect_false (ev_is_active (w)))
3942 return; 4928 return;
3943 4929
3944 pri_adjust (EV_A_ (W)w); 4930 pri_adjust (EV_A_ (W)w);
3945 4931
3946 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
… …
3949 int active = ++idlecnt [ABSPRI (w)]; 4935 int active = ++idlecnt [ABSPRI (w)];
3950 4936
3951 ++idleall; 4937 ++idleall;
3952 ev_start (EV_A_ (W)w, active); 4938 ev_start (EV_A_ (W)w, active);
3953 4939
3954 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);
3955 idles [ABSPRI (w)][active - 1] = w; 4941 idles [ABSPRI (w)][active - 1] = w;
3956 } 4942 }
3957 4943
3958 EV_FREQUENT_CHECK; 4944 EV_FREQUENT_CHECK;
3959} 4945}
3960 4946
3961void 4947void
3962ev_idle_stop (EV_P_ ev_idle *w) 4948ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
3963{ 4949{
3964 clear_pending (EV_A_ (W)w); 4950 clear_pending (EV_A_ (W)w);
3965 if (expect_false (!ev_is_active (w))) 4951 if (ecb_expect_false (!ev_is_active (w)))
3966 return; 4952 return;
3967 4953
3968 EV_FREQUENT_CHECK; 4954 EV_FREQUENT_CHECK;
3969 4955
3970 { 4956 {
… …
3981} 4967}
3982#endif 4968#endif
3983 4969
3984#if EV_PREPARE_ENABLE 4970#if EV_PREPARE_ENABLE
3985void 4971void
3986ev_prepare_start (EV_P_ ev_prepare *w) 4972ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
3987{ 4973{
3988 if (expect_false (ev_is_active (w))) 4974 if (ecb_expect_false (ev_is_active (w)))
3989 return; 4975 return;
3990 4976
3991 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
3992 4978
3993 ev_start (EV_A_ (W)w, ++preparecnt); 4979 ev_start (EV_A_ (W)w, ++preparecnt);
3994 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4980 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
3995 prepares [preparecnt - 1] = w; 4981 prepares [preparecnt - 1] = w;
3996 4982
3997 EV_FREQUENT_CHECK; 4983 EV_FREQUENT_CHECK;
3998} 4984}
3999 4985
4000void 4986void
4001ev_prepare_stop (EV_P_ ev_prepare *w) 4987ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4002{ 4988{
4003 clear_pending (EV_A_ (W)w); 4989 clear_pending (EV_A_ (W)w);
4004 if (expect_false (!ev_is_active (w))) 4990 if (ecb_expect_false (!ev_is_active (w)))
4005 return; 4991 return;
4006 4992
4007 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4008 4994
4009 { 4995 {
… …
4019} 5005}
4020#endif 5006#endif
4021 5007
4022#if EV_CHECK_ENABLE 5008#if EV_CHECK_ENABLE
4023void 5009void
4024ev_check_start (EV_P_ ev_check *w) 5010ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4025{ 5011{
4026 if (expect_false (ev_is_active (w))) 5012 if (ecb_expect_false (ev_is_active (w)))
4027 return; 5013 return;
4028 5014
4029 EV_FREQUENT_CHECK; 5015 EV_FREQUENT_CHECK;
4030 5016
4031 ev_start (EV_A_ (W)w, ++checkcnt); 5017 ev_start (EV_A_ (W)w, ++checkcnt);
4032 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5018 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4033 checks [checkcnt - 1] = w; 5019 checks [checkcnt - 1] = w;
4034 5020
4035 EV_FREQUENT_CHECK; 5021 EV_FREQUENT_CHECK;
4036} 5022}
4037 5023
4038void 5024void
4039ev_check_stop (EV_P_ ev_check *w) 5025ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4040{ 5026{
4041 clear_pending (EV_A_ (W)w); 5027 clear_pending (EV_A_ (W)w);
4042 if (expect_false (!ev_is_active (w))) 5028 if (ecb_expect_false (!ev_is_active (w)))
4043 return; 5029 return;
4044 5030
4045 EV_FREQUENT_CHECK; 5031 EV_FREQUENT_CHECK;
4046 5032
4047 { 5033 {
… …
4056 EV_FREQUENT_CHECK; 5042 EV_FREQUENT_CHECK;
4057} 5043}
4058#endif 5044#endif
4059 5045
4060#if EV_EMBED_ENABLE 5046#if EV_EMBED_ENABLE
4061void noinline 5047ecb_noinline
5048void
4062ev_embed_sweep (EV_P_ ev_embed *w) 5049ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4063{ 5050{
4064 ev_run (w->other, EVRUN_NOWAIT); 5051 ev_run (w->other, EVRUN_NOWAIT);
4065} 5052}
4066 5053
4067static void 5054static void
… …
4089 ev_run (EV_A_ EVRUN_NOWAIT); 5076 ev_run (EV_A_ EVRUN_NOWAIT);
4090 } 5077 }
4091 } 5078 }
4092} 5079}
4093 5080
5081#if EV_FORK_ENABLE
4094static void 5082static void
4095embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5083embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4096{ 5084{
4097 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5085 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4098 5086
… …
4105 ev_run (EV_A_ EVRUN_NOWAIT); 5093 ev_run (EV_A_ EVRUN_NOWAIT);
4106 } 5094 }
4107 5095
4108 ev_embed_start (EV_A_ w); 5096 ev_embed_start (EV_A_ w);
4109} 5097}
5098#endif
4110 5099
4111#if 0 5100#if 0
4112static void 5101static void
4113embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5102embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4114{ 5103{
4115 ev_idle_stop (EV_A_ idle); 5104 ev_idle_stop (EV_A_ idle);
4116} 5105}
4117#endif 5106#endif
4118 5107
4119void 5108void
4120ev_embed_start (EV_P_ ev_embed *w) 5109ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4121{ 5110{
4122 if (expect_false (ev_is_active (w))) 5111 if (ecb_expect_false (ev_is_active (w)))
4123 return; 5112 return;
4124 5113
4125 { 5114 {
4126 EV_P = w->other; 5115 EV_P = w->other;
4127 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5116 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4135 5124
4136 ev_prepare_init (&w->prepare, embed_prepare_cb); 5125 ev_prepare_init (&w->prepare, embed_prepare_cb);
4137 ev_set_priority (&w->prepare, EV_MINPRI); 5126 ev_set_priority (&w->prepare, EV_MINPRI);
4138 ev_prepare_start (EV_A_ &w->prepare); 5127 ev_prepare_start (EV_A_ &w->prepare);
4139 5128
5129#if EV_FORK_ENABLE
4140 ev_fork_init (&w->fork, embed_fork_cb); 5130 ev_fork_init (&w->fork, embed_fork_cb);
4141 ev_fork_start (EV_A_ &w->fork); 5131 ev_fork_start (EV_A_ &w->fork);
5132#endif
4142 5133
4143 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5134 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4144 5135
4145 ev_start (EV_A_ (W)w, 1); 5136 ev_start (EV_A_ (W)w, 1);
4146 5137
4147 EV_FREQUENT_CHECK; 5138 EV_FREQUENT_CHECK;
4148} 5139}
4149 5140
4150void 5141void
4151ev_embed_stop (EV_P_ ev_embed *w) 5142ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4152{ 5143{
4153 clear_pending (EV_A_ (W)w); 5144 clear_pending (EV_A_ (W)w);
4154 if (expect_false (!ev_is_active (w))) 5145 if (ecb_expect_false (!ev_is_active (w)))
4155 return; 5146 return;
4156 5147
4157 EV_FREQUENT_CHECK; 5148 EV_FREQUENT_CHECK;
4158 5149
4159 ev_io_stop (EV_A_ &w->io); 5150 ev_io_stop (EV_A_ &w->io);
4160 ev_prepare_stop (EV_A_ &w->prepare); 5151 ev_prepare_stop (EV_A_ &w->prepare);
5152#if EV_FORK_ENABLE
4161 ev_fork_stop (EV_A_ &w->fork); 5153 ev_fork_stop (EV_A_ &w->fork);
5154#endif
4162 5155
4163 ev_stop (EV_A_ (W)w); 5156 ev_stop (EV_A_ (W)w);
4164 5157
4165 EV_FREQUENT_CHECK; 5158 EV_FREQUENT_CHECK;
4166} 5159}
4167#endif 5160#endif
4168 5161
4169#if EV_FORK_ENABLE 5162#if EV_FORK_ENABLE
4170void 5163void
4171ev_fork_start (EV_P_ ev_fork *w) 5164ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4172{ 5165{
4173 if (expect_false (ev_is_active (w))) 5166 if (ecb_expect_false (ev_is_active (w)))
4174 return; 5167 return;
4175 5168
4176 EV_FREQUENT_CHECK; 5169 EV_FREQUENT_CHECK;
4177 5170
4178 ev_start (EV_A_ (W)w, ++forkcnt); 5171 ev_start (EV_A_ (W)w, ++forkcnt);
4179 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5172 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4180 forks [forkcnt - 1] = w; 5173 forks [forkcnt - 1] = w;
4181 5174
4182 EV_FREQUENT_CHECK; 5175 EV_FREQUENT_CHECK;
4183} 5176}
4184 5177
4185void 5178void
4186ev_fork_stop (EV_P_ ev_fork *w) 5179ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4187{ 5180{
4188 clear_pending (EV_A_ (W)w); 5181 clear_pending (EV_A_ (W)w);
4189 if (expect_false (!ev_is_active (w))) 5182 if (ecb_expect_false (!ev_is_active (w)))
4190 return; 5183 return;
4191 5184
4192 EV_FREQUENT_CHECK; 5185 EV_FREQUENT_CHECK;
4193 5186
4194 { 5187 {
… …
4204} 5197}
4205#endif 5198#endif
4206 5199
4207#if EV_CLEANUP_ENABLE 5200#if EV_CLEANUP_ENABLE
4208void 5201void
4209ev_cleanup_start (EV_P_ ev_cleanup *w) 5202ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4210{ 5203{
4211 if (expect_false (ev_is_active (w))) 5204 if (ecb_expect_false (ev_is_active (w)))
4212 return; 5205 return;
4213 5206
4214 EV_FREQUENT_CHECK; 5207 EV_FREQUENT_CHECK;
4215 5208
4216 ev_start (EV_A_ (W)w, ++cleanupcnt); 5209 ev_start (EV_A_ (W)w, ++cleanupcnt);
4217 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5210 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4218 cleanups [cleanupcnt - 1] = w; 5211 cleanups [cleanupcnt - 1] = w;
4219 5212
4220 /* cleanup watchers should never keep a refcount on the loop */ 5213 /* cleanup watchers should never keep a refcount on the loop */
4221 ev_unref (EV_A); 5214 ev_unref (EV_A);
4222 EV_FREQUENT_CHECK; 5215 EV_FREQUENT_CHECK;
4223} 5216}
4224 5217
4225void 5218void
4226ev_cleanup_stop (EV_P_ ev_cleanup *w) 5219ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4227{ 5220{
4228 clear_pending (EV_A_ (W)w); 5221 clear_pending (EV_A_ (W)w);
4229 if (expect_false (!ev_is_active (w))) 5222 if (ecb_expect_false (!ev_is_active (w)))
4230 return; 5223 return;
4231 5224
4232 EV_FREQUENT_CHECK; 5225 EV_FREQUENT_CHECK;
4233 ev_ref (EV_A); 5226 ev_ref (EV_A);
4234 5227
… …
4245} 5238}
4246#endif 5239#endif
4247 5240
4248#if EV_ASYNC_ENABLE 5241#if EV_ASYNC_ENABLE
4249void 5242void
4250ev_async_start (EV_P_ ev_async *w) 5243ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4251{ 5244{
4252 if (expect_false (ev_is_active (w))) 5245 if (ecb_expect_false (ev_is_active (w)))
4253 return; 5246 return;
4254 5247
4255 w->sent = 0; 5248 w->sent = 0;
4256 5249
4257 evpipe_init (EV_A); 5250 evpipe_init (EV_A);
4258 5251
4259 EV_FREQUENT_CHECK; 5252 EV_FREQUENT_CHECK;
4260 5253
4261 ev_start (EV_A_ (W)w, ++asynccnt); 5254 ev_start (EV_A_ (W)w, ++asynccnt);
4262 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5255 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4263 asyncs [asynccnt - 1] = w; 5256 asyncs [asynccnt - 1] = w;
4264 5257
4265 EV_FREQUENT_CHECK; 5258 EV_FREQUENT_CHECK;
4266} 5259}
4267 5260
4268void 5261void
4269ev_async_stop (EV_P_ ev_async *w) 5262ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4270{ 5263{
4271 clear_pending (EV_A_ (W)w); 5264 clear_pending (EV_A_ (W)w);
4272 if (expect_false (!ev_is_active (w))) 5265 if (ecb_expect_false (!ev_is_active (w)))
4273 return; 5266 return;
4274 5267
4275 EV_FREQUENT_CHECK; 5268 EV_FREQUENT_CHECK;
4276 5269
4277 { 5270 {
… …
4285 5278
4286 EV_FREQUENT_CHECK; 5279 EV_FREQUENT_CHECK;
4287} 5280}
4288 5281
4289void 5282void
4290ev_async_send (EV_P_ ev_async *w) 5283ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4291{ 5284{
4292 w->sent = 1; 5285 w->sent = 1;
4293 evpipe_write (EV_A_ &async_pending); 5286 evpipe_write (EV_A_ &async_pending);
4294} 5287}
4295#endif 5288#endif
… …
4332 5325
4333 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5326 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4334} 5327}
4335 5328
4336void 5329void
4337ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 5330ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4338{ 5331{
4339 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5332 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4340
4341 if (expect_false (!once))
4342 {
4343 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4344 return;
4345 }
4346 5333
4347 once->cb = cb; 5334 once->cb = cb;
4348 once->arg = arg; 5335 once->arg = arg;
4349 5336
4350 ev_init (&once->io, once_cb_io); 5337 ev_init (&once->io, once_cb_io);
… …
4363} 5350}
4364 5351
4365/*****************************************************************************/ 5352/*****************************************************************************/
4366 5353
4367#if EV_WALK_ENABLE 5354#if EV_WALK_ENABLE
4368void ecb_cold 5355ecb_cold
5356void
4369ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 5357ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4370{ 5358{
4371 int i, j; 5359 int i, j;
4372 ev_watcher_list *wl, *wn; 5360 ev_watcher_list *wl, *wn;
4373 5361
4374 if (types & (EV_IO | EV_EMBED)) 5362 if (types & (EV_IO | EV_EMBED))

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