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Comparing libev/ev.c (file contents):
Revision 1.412 by root, Wed Feb 22 01:53:00 2012 UTC vs.
Revision 1.510 by root, Wed Aug 28 09:45:49 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 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
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
201# include <sys/wait.h> 220# include <sys/wait.h>
202# include <unistd.h> 221# include <unistd.h>
203#else 222#else
204# include <io.h> 223# include <io.h>
205# define WIN32_LEAN_AND_MEAN 224# define WIN32_LEAN_AND_MEAN
225# include <winsock2.h>
206# include <windows.h> 226# include <windows.h>
207# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
208# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
209# endif 229# endif
210# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
211#endif 231#endif
212 232
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
221/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
222 234
223/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
224#if defined (EV_NSIG) 236#if defined EV_NSIG
225/* use what's provided */ 237/* use what's provided */
226#elif defined (NSIG) 238#elif defined NSIG
227# define EV_NSIG (NSIG) 239# define EV_NSIG (NSIG)
228#elif defined(_NSIG) 240#elif defined _NSIG
229# define EV_NSIG (_NSIG) 241# define EV_NSIG (_NSIG)
230#elif defined (SIGMAX) 242#elif defined SIGMAX
231# define EV_NSIG (SIGMAX+1) 243# define EV_NSIG (SIGMAX+1)
232#elif defined (SIG_MAX) 244#elif defined SIG_MAX
233# define EV_NSIG (SIG_MAX+1) 245# define EV_NSIG (SIG_MAX+1)
234#elif defined (_SIG_MAX) 246#elif defined _SIG_MAX
235# define EV_NSIG (_SIG_MAX+1) 247# define EV_NSIG (_SIG_MAX+1)
236#elif defined (MAXSIG) 248#elif defined MAXSIG
237# define EV_NSIG (MAXSIG+1) 249# define EV_NSIG (MAXSIG+1)
238#elif defined (MAX_SIG) 250#elif defined MAX_SIG
239# define EV_NSIG (MAX_SIG+1) 251# define EV_NSIG (MAX_SIG+1)
240#elif defined (SIGARRAYSIZE) 252#elif defined SIGARRAYSIZE
241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242#elif defined (_sys_nsig) 254#elif defined _sys_nsig
243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244#else 256#else
245# error "unable to find value for NSIG, please report" 257# 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 258#endif
250 259
251#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
253#endif 262#endif
254 263
255#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
256# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
258# else 267# else
259# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
260# endif 269# endif
261#endif 270#endif
262 271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
278# endif
279#endif
280
263#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
264# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
265# define EV_USE_MONOTONIC EV_FEATURE_OS 283# define EV_USE_MONOTONIC EV_FEATURE_OS
266# else 284# else
267# define EV_USE_MONOTONIC 0 285# define EV_USE_MONOTONIC 0
268# endif 286# endif
269#endif 287#endif
… …
306 324
307#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
308# define EV_USE_PORT 0 326# define EV_USE_PORT 0
309#endif 327#endif
310 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
337#ifndef EV_USE_IOURING
338# if __linux
339# define EV_USE_IOURING 0
340# else
341# define EV_USE_IOURING 0
342# endif
343#endif
344
311#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
312# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
313# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
314# else 348# else
315# define EV_USE_INOTIFY 0 349# define EV_USE_INOTIFY 0
… …
356 390
357#ifndef EV_HEAP_CACHE_AT 391#ifndef EV_HEAP_CACHE_AT
358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 392# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359#endif 393#endif
360 394
395#ifdef __ANDROID__
396/* supposedly, android doesn't typedef fd_mask */
397# undef EV_USE_SELECT
398# define EV_USE_SELECT 0
399/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
400# undef EV_USE_CLOCK_SYSCALL
401# define EV_USE_CLOCK_SYSCALL 0
402#endif
403
404/* aix's poll.h seems to cause lots of trouble */
405#ifdef _AIX
406/* AIX has a completely broken poll.h header */
407# undef EV_USE_POLL
408# define EV_USE_POLL 0
409#endif
410
361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 411/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
362/* which makes programs even slower. might work on other unices, too. */ 412/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 413#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 414# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
369# else 420# else
370# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
371# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
372# endif 423# endif
373#endif 424#endif
374 425
375/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 426/* this block fixes any misconfiguration where we know we run into trouble otherwise */
376 427
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 428#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC 429# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0 430# define EV_USE_MONOTONIC 0
386#endif 431#endif
387 432
… …
395# define EV_USE_INOTIFY 0 440# define EV_USE_INOTIFY 0
396#endif 441#endif
397 442
398#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
399/* hp-ux has it in sys/time.h, which we unconditionally include above */ 444/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined(_WIN32) && !defined(__hpux) 445# if !defined _WIN32 && !defined __hpux
401# include <sys/select.h> 446# include <sys/select.h>
447# endif
448#endif
449
450#if EV_USE_LINUXAIO
451# include <sys/syscall.h>
452# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
453# define EV_NEED_SYSCALL 1
454# else
455# undef EV_USE_LINUXAIO
456# define EV_USE_LINUXAIO 0
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !SYS_io_uring_setup && __linux && !__alpha
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
402# endif 472# endif
403#endif 473#endif
404 474
405#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
406# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 478/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409# ifndef IN_DONT_FOLLOW 479# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 480# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 481# define EV_USE_INOTIFY 0
412# endif 482# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 483#endif
418 484
419#if EV_USE_EVENTFD 485#if EV_USE_EVENTFD
420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 486/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421# include <stdint.h> 487# include <stdint.h>
… …
452 uint32_t ssi_signo; 518 uint32_t ssi_signo;
453 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
454}; 520};
455#endif 521#endif
456 522
457/**/ 523/*****************************************************************************/
458 524
459#if EV_VERIFY >= 3 525#if EV_VERIFY >= 3
460# define EV_FREQUENT_CHECK ev_verify (EV_A) 526# define EV_FREQUENT_CHECK ev_verify (EV_A)
461#else 527#else
462# define EV_FREQUENT_CHECK do { } while (0) 528# define EV_FREQUENT_CHECK do { } while (0)
… …
467 * This value is good at least till the year 4000. 533 * This value is good at least till the year 4000.
468 */ 534 */
469#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 535#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
470/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 536/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
471 537
472#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 538#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) */ 539#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
474 540
541/* find a portable timestamp that is "always" in the future but fits into time_t.
542 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
543 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
544#define EV_TSTAMP_HUGE \
545 (sizeof (time_t) >= 8 ? 10000000000000. \
546 : 0 < (time_t)4294967295 ? 4294967295. \
547 : 2147483647.) \
548
549#ifndef EV_TS_CONST
550# define EV_TS_CONST(nv) nv
551# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
552# 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) 553# 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) 554# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
555# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
556# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
557#endif
477 558
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 559/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */ 560/* ECB.H BEGIN */
480/* 561/*
481 * libecb - http://software.schmorp.de/pkg/libecb 562 * libecb - http://software.schmorp.de/pkg/libecb
482 * 563 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 564 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta 565 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved. 566 * All rights reserved.
486 * 567 *
487 * Redistribution and use in source and binary forms, with or without modifica- 568 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met: 569 * tion, are permitted provided that the following conditions are met:
… …
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 583 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 584 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 585 * 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 586 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE. 587 * OF THE POSSIBILITY OF SUCH DAMAGE.
588 *
589 * Alternatively, the contents of this file may be used under the terms of
590 * the GNU General Public License ("GPL") version 2 or any later version,
591 * in which case the provisions of the GPL are applicable instead of
592 * the above. If you wish to allow the use of your version of this file
593 * only under the terms of the GPL and not to allow others to use your
594 * version of this file under the BSD license, indicate your decision
595 * by deleting the provisions above and replace them with the notice
596 * and other provisions required by the GPL. If you do not delete the
597 * provisions above, a recipient may use your version of this file under
598 * either the BSD or the GPL.
507 */ 599 */
508 600
509#ifndef ECB_H 601#ifndef ECB_H
510#define ECB_H 602#define ECB_H
603
604/* 16 bits major, 16 bits minor */
605#define ECB_VERSION 0x00010006
511 606
512#ifdef _WIN32 607#ifdef _WIN32
513 typedef signed char int8_t; 608 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 609 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 610 typedef signed short int16_t;
… …
521 typedef unsigned long long uint64_t; 616 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 617 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 618 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 619 typedef unsigned __int64 uint64_t;
525 #endif 620 #endif
621 #ifdef _WIN64
622 #define ECB_PTRSIZE 8
623 typedef uint64_t uintptr_t;
624 typedef int64_t intptr_t;
625 #else
626 #define ECB_PTRSIZE 4
627 typedef uint32_t uintptr_t;
628 typedef int32_t intptr_t;
629 #endif
526#else 630#else
527 #include <inttypes.h> 631 #include <inttypes.h>
632 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
633 #define ECB_PTRSIZE 8
634 #else
635 #define ECB_PTRSIZE 4
636 #endif
637#endif
638
639#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
640#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
641
642/* work around x32 idiocy by defining proper macros */
643#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
644 #if _ILP32
645 #define ECB_AMD64_X32 1
646 #else
647 #define ECB_AMD64 1
648 #endif
528#endif 649#endif
529 650
530/* many compilers define _GNUC_ to some versions but then only implement 651/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 652 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 653 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 654 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have 655 * 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. 656 * an issue with that they should have done it right in the first place.
536 */ 657 */
537#ifndef ECB_GCC_VERSION
538 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 658#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0 659 #define ECB_GCC_VERSION(major,minor) 0
540 #else 660#else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 661 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 662#endif
663
664#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
665
666#if __clang__ && defined __has_builtin
667 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
668#else
669 #define ECB_CLANG_BUILTIN(x) 0
670#endif
671
672#if __clang__ && defined __has_extension
673 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
674#else
675 #define ECB_CLANG_EXTENSION(x) 0
676#endif
677
678#define ECB_CPP (__cplusplus+0)
679#define ECB_CPP11 (__cplusplus >= 201103L)
680#define ECB_CPP14 (__cplusplus >= 201402L)
681#define ECB_CPP17 (__cplusplus >= 201703L)
682
683#if ECB_CPP
684 #define ECB_C 0
685 #define ECB_STDC_VERSION 0
686#else
687 #define ECB_C 1
688 #define ECB_STDC_VERSION __STDC_VERSION__
689#endif
690
691#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
692#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
693#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
694
695#if ECB_CPP
696 #define ECB_EXTERN_C extern "C"
697 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
698 #define ECB_EXTERN_C_END }
699#else
700 #define ECB_EXTERN_C extern
701 #define ECB_EXTERN_C_BEG
702 #define ECB_EXTERN_C_END
543#endif 703#endif
544 704
545/*****************************************************************************/ 705/*****************************************************************************/
546 706
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 707/* 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 */ 708/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 709
550#if ECB_NO_THREADS 710#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 711 #define ECB_NO_SMP 1
552#endif 712#endif
553 713
554#if ECB_NO_THREADS || ECB_NO_SMP 714#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 715 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 716#endif
557 717
718/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
719#if __xlC__ && ECB_CPP
720 #include <builtins.h>
721#endif
722
723#if 1400 <= _MSC_VER
724 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
725#endif
726
558#ifndef ECB_MEMORY_FENCE 727#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 728 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
729 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
560 #if __i386 || __i386__ 730 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 731 #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 */ 732 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 733 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 734 #elif ECB_GCC_AMD64
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 735 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 736 #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 */ 737 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 738 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 739 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
740 #elif defined __ARM_ARCH_2__ \
741 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
742 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
743 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
744 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
745 || defined __ARM_ARCH_5TEJ__
746 /* 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__ ) \ 747 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 748 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
749 || defined __ARM_ARCH_6T2__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 750 #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__ ) \ 751 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 752 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 753 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 754 #elif __aarch64__
755 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
756 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 757 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 758 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 759 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 760 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 761 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined(__mips__) 762 #elif defined __mips__
763 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
764 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
765 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
766 #elif defined __alpha__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 767 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
768 #elif defined __hppa__
769 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
770 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
771 #elif defined __ia64__
772 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
773 #elif defined __m68k__
774 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
775 #elif defined __m88k__
776 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
777 #elif defined __sh__
778 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
584 #endif 779 #endif
585 #endif 780 #endif
586#endif 781#endif
587 782
588#ifndef ECB_MEMORY_FENCE 783#ifndef ECB_MEMORY_FENCE
784 #if ECB_GCC_VERSION(4,7)
785 /* see comment below (stdatomic.h) about the C11 memory model. */
786 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
787 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
788 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
789 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
790
791 #elif ECB_CLANG_EXTENSION(c_atomic)
792 /* see comment below (stdatomic.h) about the C11 memory model. */
793 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
794 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
795 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
796 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
797
589 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 798 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590 #define ECB_MEMORY_FENCE __sync_synchronize () 799 #define ECB_MEMORY_FENCE __sync_synchronize ()
591 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 800 #elif _MSC_VER >= 1500 /* VC++ 2008 */
592 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 801 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
802 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
803 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
804 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
805 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
593 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 806 #elif _MSC_VER >= 1400 /* VC++ 2005 */
594 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 807 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 808 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 809 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 810 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
598 #elif defined(_WIN32) 811 #elif defined _WIN32
599 #include <WinNT.h> 812 #include <WinNT.h>
600 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 813 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
601 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 814 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
602 #include <mbarrier.h> 815 #include <mbarrier.h>
603 #define ECB_MEMORY_FENCE __machine_rw_barrier () 816 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
604 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 817 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
605 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 818 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
819 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
820 #elif __xlC__
821 #define ECB_MEMORY_FENCE __sync ()
822 #endif
823#endif
824
825#ifndef ECB_MEMORY_FENCE
826 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
827 /* we assume that these memory fences work on all variables/all memory accesses, */
828 /* not just C11 atomics and atomic accesses */
829 #include <stdatomic.h>
830 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
831 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
832 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
606 #endif 833 #endif
607#endif 834#endif
608 835
609#ifndef ECB_MEMORY_FENCE 836#ifndef ECB_MEMORY_FENCE
610 #if !ECB_AVOID_PTHREADS 837 #if !ECB_AVOID_PTHREADS
… …
622 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 849 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
623 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 850 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
624 #endif 851 #endif
625#endif 852#endif
626 853
627#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 854#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
628 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 855 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
629#endif 856#endif
630 857
631#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 858#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
632 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 859 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
633#endif 860#endif
634 861
862#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
863 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
864#endif
865
635/*****************************************************************************/ 866/*****************************************************************************/
636 867
637#define ECB_C99 (__STDC_VERSION__ >= 199901L) 868#if ECB_CPP
638
639#if __cplusplus
640 #define ecb_inline static inline 869 #define ecb_inline static inline
641#elif ECB_GCC_VERSION(2,5) 870#elif ECB_GCC_VERSION(2,5)
642 #define ecb_inline static __inline__ 871 #define ecb_inline static __inline__
643#elif ECB_C99 872#elif ECB_C99
644 #define ecb_inline static inline 873 #define ecb_inline static inline
… …
658 887
659#define ECB_CONCAT_(a, b) a ## b 888#define ECB_CONCAT_(a, b) a ## b
660#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 889#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
661#define ECB_STRINGIFY_(a) # a 890#define ECB_STRINGIFY_(a) # a
662#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 891#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
892#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
663 893
664#define ecb_function_ ecb_inline 894#define ecb_function_ ecb_inline
665 895
666#if ECB_GCC_VERSION(3,1) 896#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
667 #define ecb_attribute(attrlist) __attribute__(attrlist) 897 #define ecb_attribute(attrlist) __attribute__ (attrlist)
898#else
899 #define ecb_attribute(attrlist)
900#endif
901
902#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
668 #define ecb_is_constant(expr) __builtin_constant_p (expr) 903 #define ecb_is_constant(expr) __builtin_constant_p (expr)
904#else
905 /* possible C11 impl for integral types
906 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
907 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
908
909 #define ecb_is_constant(expr) 0
910#endif
911
912#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
669 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 913 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
914#else
915 #define ecb_expect(expr,value) (expr)
916#endif
917
918#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
670 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 919 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
671#else 920#else
672 #define ecb_attribute(attrlist)
673 #define ecb_is_constant(expr) 0
674 #define ecb_expect(expr,value) (expr)
675 #define ecb_prefetch(addr,rw,locality) 921 #define ecb_prefetch(addr,rw,locality)
676#endif 922#endif
677 923
678/* no emulation for ecb_decltype */ 924/* no emulation for ecb_decltype */
679#if ECB_GCC_VERSION(4,5) 925#if ECB_CPP11
926 // older implementations might have problems with decltype(x)::type, work around it
927 template<class T> struct ecb_decltype_t { typedef T type; };
680 #define ecb_decltype(x) __decltype(x) 928 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
681#elif ECB_GCC_VERSION(3,0) 929#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
682 #define ecb_decltype(x) __typeof(x) 930 #define ecb_decltype(x) __typeof__ (x)
683#endif 931#endif
684 932
933#if _MSC_VER >= 1300
934 #define ecb_deprecated __declspec (deprecated)
935#else
936 #define ecb_deprecated ecb_attribute ((__deprecated__))
937#endif
938
939#if _MSC_VER >= 1500
940 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
941#elif ECB_GCC_VERSION(4,5)
942 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
943#else
944 #define ecb_deprecated_message(msg) ecb_deprecated
945#endif
946
947#if _MSC_VER >= 1400
948 #define ecb_noinline __declspec (noinline)
949#else
685#define ecb_noinline ecb_attribute ((__noinline__)) 950 #define ecb_noinline ecb_attribute ((__noinline__))
686#define ecb_noreturn ecb_attribute ((__noreturn__)) 951#endif
952
687#define ecb_unused ecb_attribute ((__unused__)) 953#define ecb_unused ecb_attribute ((__unused__))
688#define ecb_const ecb_attribute ((__const__)) 954#define ecb_const ecb_attribute ((__const__))
689#define ecb_pure ecb_attribute ((__pure__)) 955#define ecb_pure ecb_attribute ((__pure__))
956
957#if ECB_C11 || __IBMC_NORETURN
958 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
959 #define ecb_noreturn _Noreturn
960#elif ECB_CPP11
961 #define ecb_noreturn [[noreturn]]
962#elif _MSC_VER >= 1200
963 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
964 #define ecb_noreturn __declspec (noreturn)
965#else
966 #define ecb_noreturn ecb_attribute ((__noreturn__))
967#endif
690 968
691#if ECB_GCC_VERSION(4,3) 969#if ECB_GCC_VERSION(4,3)
692 #define ecb_artificial ecb_attribute ((__artificial__)) 970 #define ecb_artificial ecb_attribute ((__artificial__))
693 #define ecb_hot ecb_attribute ((__hot__)) 971 #define ecb_hot ecb_attribute ((__hot__))
694 #define ecb_cold ecb_attribute ((__cold__)) 972 #define ecb_cold ecb_attribute ((__cold__))
… …
706/* for compatibility to the rest of the world */ 984/* for compatibility to the rest of the world */
707#define ecb_likely(expr) ecb_expect_true (expr) 985#define ecb_likely(expr) ecb_expect_true (expr)
708#define ecb_unlikely(expr) ecb_expect_false (expr) 986#define ecb_unlikely(expr) ecb_expect_false (expr)
709 987
710/* count trailing zero bits and count # of one bits */ 988/* count trailing zero bits and count # of one bits */
711#if ECB_GCC_VERSION(3,4) 989#if ECB_GCC_VERSION(3,4) \
990 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
991 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
992 && ECB_CLANG_BUILTIN(__builtin_popcount))
712 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 993 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
713 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 994 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
714 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 995 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
715 #define ecb_ctz32(x) __builtin_ctz (x) 996 #define ecb_ctz32(x) __builtin_ctz (x)
716 #define ecb_ctz64(x) __builtin_ctzll (x) 997 #define ecb_ctz64(x) __builtin_ctzll (x)
717 #define ecb_popcount32(x) __builtin_popcount (x) 998 #define ecb_popcount32(x) __builtin_popcount (x)
718 /* no popcountll */ 999 /* no popcountll */
719#else 1000#else
720 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1001 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
721 ecb_function_ int 1002 ecb_function_ ecb_const int
722 ecb_ctz32 (uint32_t x) 1003 ecb_ctz32 (uint32_t x)
723 { 1004 {
1005#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1006 unsigned long r;
1007 _BitScanForward (&r, x);
1008 return (int)r;
1009#else
724 int r = 0; 1010 int r = 0;
725 1011
726 x &= ~x + 1; /* this isolates the lowest bit */ 1012 x &= ~x + 1; /* this isolates the lowest bit */
727 1013
728#if ECB_branchless_on_i386 1014#if ECB_branchless_on_i386
… …
738 if (x & 0xff00ff00) r += 8; 1024 if (x & 0xff00ff00) r += 8;
739 if (x & 0xffff0000) r += 16; 1025 if (x & 0xffff0000) r += 16;
740#endif 1026#endif
741 1027
742 return r; 1028 return r;
1029#endif
743 } 1030 }
744 1031
745 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1032 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
746 ecb_function_ int 1033 ecb_function_ ecb_const int
747 ecb_ctz64 (uint64_t x) 1034 ecb_ctz64 (uint64_t x)
748 { 1035 {
1036#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1037 unsigned long r;
1038 _BitScanForward64 (&r, x);
1039 return (int)r;
1040#else
749 int shift = x & 0xffffffffU ? 0 : 32; 1041 int shift = x & 0xffffffff ? 0 : 32;
750 return ecb_ctz32 (x >> shift) + shift; 1042 return ecb_ctz32 (x >> shift) + shift;
1043#endif
751 } 1044 }
752 1045
753 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1046 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
754 ecb_function_ int 1047 ecb_function_ ecb_const int
755 ecb_popcount32 (uint32_t x) 1048 ecb_popcount32 (uint32_t x)
756 { 1049 {
757 x -= (x >> 1) & 0x55555555; 1050 x -= (x >> 1) & 0x55555555;
758 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1051 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
759 x = ((x >> 4) + x) & 0x0f0f0f0f; 1052 x = ((x >> 4) + x) & 0x0f0f0f0f;
760 x *= 0x01010101; 1053 x *= 0x01010101;
761 1054
762 return x >> 24; 1055 return x >> 24;
763 } 1056 }
764 1057
765 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1058 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
766 ecb_function_ int ecb_ld32 (uint32_t x) 1059 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
767 { 1060 {
1061#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1062 unsigned long r;
1063 _BitScanReverse (&r, x);
1064 return (int)r;
1065#else
768 int r = 0; 1066 int r = 0;
769 1067
770 if (x >> 16) { x >>= 16; r += 16; } 1068 if (x >> 16) { x >>= 16; r += 16; }
771 if (x >> 8) { x >>= 8; r += 8; } 1069 if (x >> 8) { x >>= 8; r += 8; }
772 if (x >> 4) { x >>= 4; r += 4; } 1070 if (x >> 4) { x >>= 4; r += 4; }
773 if (x >> 2) { x >>= 2; r += 2; } 1071 if (x >> 2) { x >>= 2; r += 2; }
774 if (x >> 1) { r += 1; } 1072 if (x >> 1) { r += 1; }
775 1073
776 return r; 1074 return r;
1075#endif
777 } 1076 }
778 1077
779 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1078 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
780 ecb_function_ int ecb_ld64 (uint64_t x) 1079 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
781 { 1080 {
1081#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1082 unsigned long r;
1083 _BitScanReverse64 (&r, x);
1084 return (int)r;
1085#else
782 int r = 0; 1086 int r = 0;
783 1087
784 if (x >> 32) { x >>= 32; r += 32; } 1088 if (x >> 32) { x >>= 32; r += 32; }
785 1089
786 return r + ecb_ld32 (x); 1090 return r + ecb_ld32 (x);
1091#endif
787 } 1092 }
788#endif 1093#endif
789 1094
1095ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
1096ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1097ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
1098ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
1099
790ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1100ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1101ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
792{ 1102{
793 return ( (x * 0x0802U & 0x22110U) 1103 return ( (x * 0x0802U & 0x22110U)
794 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1104 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
795} 1105}
796 1106
797ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1107ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
798ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1108ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
799{ 1109{
800 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1110 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
801 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1111 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
802 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1112 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
803 x = ( x >> 8 ) | ( x << 8); 1113 x = ( x >> 8 ) | ( x << 8);
804 1114
805 return x; 1115 return x;
806} 1116}
807 1117
808ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1118ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
809ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1119ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
810{ 1120{
811 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1121 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
812 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1122 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
813 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1123 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
814 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1124 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
817 return x; 1127 return x;
818} 1128}
819 1129
820/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1130/* popcount64 is only available on 64 bit cpus as gcc builtin */
821/* so for this version we are lazy */ 1131/* so for this version we are lazy */
822ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1132ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
823ecb_function_ int 1133ecb_function_ ecb_const int
824ecb_popcount64 (uint64_t x) 1134ecb_popcount64 (uint64_t x)
825{ 1135{
826 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1136 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
827} 1137}
828 1138
829ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1139ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
830ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1140ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
831ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1141ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
832ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1142ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
833ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1143ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
834ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1144ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
835ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1145ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
836ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1146ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
837 1147
838ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1148ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
839ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1149ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
840ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1150ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
841ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1151ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
842ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1152ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
843ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1153ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
844ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1154ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
845ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1155ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
846 1156
847#if ECB_GCC_VERSION(4,3) 1157#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1158 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1159 #define ecb_bswap16(x) __builtin_bswap16 (x)
1160 #else
848 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1161 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1162 #endif
849 #define ecb_bswap32(x) __builtin_bswap32 (x) 1163 #define ecb_bswap32(x) __builtin_bswap32 (x)
850 #define ecb_bswap64(x) __builtin_bswap64 (x) 1164 #define ecb_bswap64(x) __builtin_bswap64 (x)
1165#elif _MSC_VER
1166 #include <stdlib.h>
1167 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1168 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1169 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
851#else 1170#else
852 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1171 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
853 ecb_function_ uint16_t 1172 ecb_function_ ecb_const uint16_t
854 ecb_bswap16 (uint16_t x) 1173 ecb_bswap16 (uint16_t x)
855 { 1174 {
856 return ecb_rotl16 (x, 8); 1175 return ecb_rotl16 (x, 8);
857 } 1176 }
858 1177
859 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1178 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
860 ecb_function_ uint32_t 1179 ecb_function_ ecb_const uint32_t
861 ecb_bswap32 (uint32_t x) 1180 ecb_bswap32 (uint32_t x)
862 { 1181 {
863 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1182 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
864 } 1183 }
865 1184
866 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1185 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
867 ecb_function_ uint64_t 1186 ecb_function_ ecb_const uint64_t
868 ecb_bswap64 (uint64_t x) 1187 ecb_bswap64 (uint64_t x)
869 { 1188 {
870 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1189 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
871 } 1190 }
872#endif 1191#endif
873 1192
874#if ECB_GCC_VERSION(4,5) 1193#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
875 #define ecb_unreachable() __builtin_unreachable () 1194 #define ecb_unreachable() __builtin_unreachable ()
876#else 1195#else
877 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1196 /* this seems to work fine, but gcc always emits a warning for it :/ */
878 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1197 ecb_inline ecb_noreturn void ecb_unreachable (void);
879 ecb_inline void ecb_unreachable (void) { } 1198 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
880#endif 1199#endif
881 1200
882/* try to tell the compiler that some condition is definitely true */ 1201/* try to tell the compiler that some condition is definitely true */
883#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1202#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
884 1203
885ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1204ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
886ecb_inline unsigned char 1205ecb_inline ecb_const uint32_t
887ecb_byteorder_helper (void) 1206ecb_byteorder_helper (void)
888{ 1207{
889 const uint32_t u = 0x11223344; 1208 /* the union code still generates code under pressure in gcc, */
890 return *(unsigned char *)&u; 1209 /* but less than using pointers, and always seems to */
1210 /* successfully return a constant. */
1211 /* the reason why we have this horrible preprocessor mess */
1212 /* is to avoid it in all cases, at least on common architectures */
1213 /* or when using a recent enough gcc version (>= 4.6) */
1214#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1215 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1216 #define ECB_LITTLE_ENDIAN 1
1217 return 0x44332211;
1218#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1219 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1220 #define ECB_BIG_ENDIAN 1
1221 return 0x11223344;
1222#else
1223 union
1224 {
1225 uint8_t c[4];
1226 uint32_t u;
1227 } u = { 0x11, 0x22, 0x33, 0x44 };
1228 return u.u;
1229#endif
891} 1230}
892 1231
893ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1232ecb_inline ecb_const ecb_bool ecb_big_endian (void);
894ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1233ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
895ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1234ecb_inline ecb_const ecb_bool ecb_little_endian (void);
896ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1235ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
897 1236
898#if ECB_GCC_VERSION(3,0) || ECB_C99 1237#if ECB_GCC_VERSION(3,0) || ECB_C99
899 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1238 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
900#else 1239#else
901 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1240 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
902#endif 1241#endif
903 1242
904#if __cplusplus 1243#if ECB_CPP
905 template<typename T> 1244 template<typename T>
906 static inline T ecb_div_rd (T val, T div) 1245 static inline T ecb_div_rd (T val, T div)
907 { 1246 {
908 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1247 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
909 } 1248 }
… …
926 } 1265 }
927#else 1266#else
928 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1267 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
929#endif 1268#endif
930 1269
1270ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1271ecb_function_ ecb_const uint32_t
1272ecb_binary16_to_binary32 (uint32_t x)
1273{
1274 unsigned int s = (x & 0x8000) << (31 - 15);
1275 int e = (x >> 10) & 0x001f;
1276 unsigned int m = x & 0x03ff;
1277
1278 if (ecb_expect_false (e == 31))
1279 /* infinity or NaN */
1280 e = 255 - (127 - 15);
1281 else if (ecb_expect_false (!e))
1282 {
1283 if (ecb_expect_true (!m))
1284 /* zero, handled by code below by forcing e to 0 */
1285 e = 0 - (127 - 15);
1286 else
1287 {
1288 /* subnormal, renormalise */
1289 unsigned int s = 10 - ecb_ld32 (m);
1290
1291 m = (m << s) & 0x3ff; /* mask implicit bit */
1292 e -= s - 1;
1293 }
1294 }
1295
1296 /* e and m now are normalised, or zero, (or inf or nan) */
1297 e += 127 - 15;
1298
1299 return s | (e << 23) | (m << (23 - 10));
1300}
1301
1302ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1303ecb_function_ ecb_const uint16_t
1304ecb_binary32_to_binary16 (uint32_t x)
1305{
1306 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1307 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1308 unsigned int m = x & 0x007fffff;
1309
1310 x &= 0x7fffffff;
1311
1312 /* if it's within range of binary16 normals, use fast path */
1313 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1314 {
1315 /* mantissa round-to-even */
1316 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1317
1318 /* handle overflow */
1319 if (ecb_expect_false (m >= 0x00800000))
1320 {
1321 m >>= 1;
1322 e += 1;
1323 }
1324
1325 return s | (e << 10) | (m >> (23 - 10));
1326 }
1327
1328 /* handle large numbers and infinity */
1329 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1330 return s | 0x7c00;
1331
1332 /* handle zero, subnormals and small numbers */
1333 if (ecb_expect_true (x < 0x38800000))
1334 {
1335 /* zero */
1336 if (ecb_expect_true (!x))
1337 return s;
1338
1339 /* handle subnormals */
1340
1341 /* too small, will be zero */
1342 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1343 return s;
1344
1345 m |= 0x00800000; /* make implicit bit explicit */
1346
1347 /* very tricky - we need to round to the nearest e (+10) bit value */
1348 {
1349 unsigned int bits = 14 - e;
1350 unsigned int half = (1 << (bits - 1)) - 1;
1351 unsigned int even = (m >> bits) & 1;
1352
1353 /* if this overflows, we will end up with a normalised number */
1354 m = (m + half + even) >> bits;
1355 }
1356
1357 return s | m;
1358 }
1359
1360 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1361 m >>= 13;
1362
1363 return s | 0x7c00 | m | !m;
1364}
1365
1366/*******************************************************************************/
1367/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1368
1369/* basically, everything uses "ieee pure-endian" floating point numbers */
1370/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1371#if 0 \
1372 || __i386 || __i386__ \
1373 || ECB_GCC_AMD64 \
1374 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1375 || defined __s390__ || defined __s390x__ \
1376 || defined __mips__ \
1377 || defined __alpha__ \
1378 || defined __hppa__ \
1379 || defined __ia64__ \
1380 || defined __m68k__ \
1381 || defined __m88k__ \
1382 || defined __sh__ \
1383 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1384 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1385 || defined __aarch64__
1386 #define ECB_STDFP 1
1387 #include <string.h> /* for memcpy */
1388#else
1389 #define ECB_STDFP 0
1390#endif
1391
1392#ifndef ECB_NO_LIBM
1393
1394 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1395
1396 /* only the oldest of old doesn't have this one. solaris. */
1397 #ifdef INFINITY
1398 #define ECB_INFINITY INFINITY
1399 #else
1400 #define ECB_INFINITY HUGE_VAL
1401 #endif
1402
1403 #ifdef NAN
1404 #define ECB_NAN NAN
1405 #else
1406 #define ECB_NAN ECB_INFINITY
1407 #endif
1408
1409 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1410 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1411 #define ecb_frexpf(x,e) frexpf ((x), (e))
1412 #else
1413 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1414 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1415 #endif
1416
1417 /* convert a float to ieee single/binary32 */
1418 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1419 ecb_function_ ecb_const uint32_t
1420 ecb_float_to_binary32 (float x)
1421 {
1422 uint32_t r;
1423
1424 #if ECB_STDFP
1425 memcpy (&r, &x, 4);
1426 #else
1427 /* slow emulation, works for anything but -0 */
1428 uint32_t m;
1429 int e;
1430
1431 if (x == 0e0f ) return 0x00000000U;
1432 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1433 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1434 if (x != x ) return 0x7fbfffffU;
1435
1436 m = ecb_frexpf (x, &e) * 0x1000000U;
1437
1438 r = m & 0x80000000U;
1439
1440 if (r)
1441 m = -m;
1442
1443 if (e <= -126)
1444 {
1445 m &= 0xffffffU;
1446 m >>= (-125 - e);
1447 e = -126;
1448 }
1449
1450 r |= (e + 126) << 23;
1451 r |= m & 0x7fffffU;
1452 #endif
1453
1454 return r;
1455 }
1456
1457 /* converts an ieee single/binary32 to a float */
1458 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1459 ecb_function_ ecb_const float
1460 ecb_binary32_to_float (uint32_t x)
1461 {
1462 float r;
1463
1464 #if ECB_STDFP
1465 memcpy (&r, &x, 4);
1466 #else
1467 /* emulation, only works for normals and subnormals and +0 */
1468 int neg = x >> 31;
1469 int e = (x >> 23) & 0xffU;
1470
1471 x &= 0x7fffffU;
1472
1473 if (e)
1474 x |= 0x800000U;
1475 else
1476 e = 1;
1477
1478 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1479 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1480
1481 r = neg ? -r : r;
1482 #endif
1483
1484 return r;
1485 }
1486
1487 /* convert a double to ieee double/binary64 */
1488 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1489 ecb_function_ ecb_const uint64_t
1490 ecb_double_to_binary64 (double x)
1491 {
1492 uint64_t r;
1493
1494 #if ECB_STDFP
1495 memcpy (&r, &x, 8);
1496 #else
1497 /* slow emulation, works for anything but -0 */
1498 uint64_t m;
1499 int e;
1500
1501 if (x == 0e0 ) return 0x0000000000000000U;
1502 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1503 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1504 if (x != x ) return 0X7ff7ffffffffffffU;
1505
1506 m = frexp (x, &e) * 0x20000000000000U;
1507
1508 r = m & 0x8000000000000000;;
1509
1510 if (r)
1511 m = -m;
1512
1513 if (e <= -1022)
1514 {
1515 m &= 0x1fffffffffffffU;
1516 m >>= (-1021 - e);
1517 e = -1022;
1518 }
1519
1520 r |= ((uint64_t)(e + 1022)) << 52;
1521 r |= m & 0xfffffffffffffU;
1522 #endif
1523
1524 return r;
1525 }
1526
1527 /* converts an ieee double/binary64 to a double */
1528 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1529 ecb_function_ ecb_const double
1530 ecb_binary64_to_double (uint64_t x)
1531 {
1532 double r;
1533
1534 #if ECB_STDFP
1535 memcpy (&r, &x, 8);
1536 #else
1537 /* emulation, only works for normals and subnormals and +0 */
1538 int neg = x >> 63;
1539 int e = (x >> 52) & 0x7ffU;
1540
1541 x &= 0xfffffffffffffU;
1542
1543 if (e)
1544 x |= 0x10000000000000U;
1545 else
1546 e = 1;
1547
1548 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1549 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1550
1551 r = neg ? -r : r;
1552 #endif
1553
1554 return r;
1555 }
1556
1557 /* convert a float to ieee half/binary16 */
1558 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1559 ecb_function_ ecb_const uint16_t
1560 ecb_float_to_binary16 (float x)
1561 {
1562 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1563 }
1564
1565 /* convert an ieee half/binary16 to float */
1566 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1567 ecb_function_ ecb_const float
1568 ecb_binary16_to_float (uint16_t x)
1569 {
1570 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1571 }
1572
1573#endif
1574
931#endif 1575#endif
932 1576
933/* ECB.H END */ 1577/* ECB.H END */
934 1578
935#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1579#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
936/* if your architecture doesn't need memory fences, e.g. because it is 1580/* if your architecture doesn't need memory fences, e.g. because it is
937 * single-cpu/core, or if you use libev in a project that doesn't use libev 1581 * single-cpu/core, or if you use libev in a project that doesn't use libev
938 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1582 * from multiple threads, then you can define ECB_NO_THREADS when compiling
939 * libev, in which cases the memory fences become nops. 1583 * libev, in which cases the memory fences become nops.
940 * alternatively, you can remove this #error and link against libpthread, 1584 * alternatively, you can remove this #error and link against libpthread,
941 * which will then provide the memory fences. 1585 * which will then provide the memory fences.
942 */ 1586 */
943# error "memory fences not defined for your architecture, please report" 1587# error "memory fences not defined for your architecture, please report"
… …
947# define ECB_MEMORY_FENCE do { } while (0) 1591# define ECB_MEMORY_FENCE do { } while (0)
948# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1592# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
949# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1593# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
950#endif 1594#endif
951 1595
952#define expect_false(cond) ecb_expect_false (cond)
953#define expect_true(cond) ecb_expect_true (cond)
954#define noinline ecb_noinline
955
956#define inline_size ecb_inline 1596#define inline_size ecb_inline
957 1597
958#if EV_FEATURE_CODE 1598#if EV_FEATURE_CODE
959# define inline_speed ecb_inline 1599# define inline_speed ecb_inline
960#else 1600#else
961# define inline_speed static noinline 1601# define inline_speed ecb_noinline static
962#endif 1602#endif
1603
1604/*****************************************************************************/
1605/* raw syscall wrappers */
1606
1607#if EV_NEED_SYSCALL
1608
1609#include <sys/syscall.h>
1610
1611/*
1612 * define some syscall wrappers for common architectures
1613 * this is mostly for nice looks during debugging, not performance.
1614 * our syscalls return < 0, not == -1, on error. which is good
1615 * enough for linux aio.
1616 * TODO: arm is also common nowadays, maybe even mips and x86
1617 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1618 */
1619#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1620 /* the costly errno access probably kills this for size optimisation */
1621
1622 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1623 ({ \
1624 long res; \
1625 register unsigned long r6 __asm__ ("r9" ); \
1626 register unsigned long r5 __asm__ ("r8" ); \
1627 register unsigned long r4 __asm__ ("r10"); \
1628 register unsigned long r3 __asm__ ("rdx"); \
1629 register unsigned long r2 __asm__ ("rsi"); \
1630 register unsigned long r1 __asm__ ("rdi"); \
1631 if (narg >= 6) r6 = (unsigned long)(arg6); \
1632 if (narg >= 5) r5 = (unsigned long)(arg5); \
1633 if (narg >= 4) r4 = (unsigned long)(arg4); \
1634 if (narg >= 3) r3 = (unsigned long)(arg3); \
1635 if (narg >= 2) r2 = (unsigned long)(arg2); \
1636 if (narg >= 1) r1 = (unsigned long)(arg1); \
1637 __asm__ __volatile__ ( \
1638 "syscall\n\t" \
1639 : "=a" (res) \
1640 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1641 : "cc", "r11", "cx", "memory"); \
1642 errno = -res; \
1643 res; \
1644 })
1645
1646#endif
1647
1648#ifdef ev_syscall
1649 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1650 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1651 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1652 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1653 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1654 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1655 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1656#else
1657 #define ev_syscall0(nr) syscall (nr)
1658 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1659 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1660 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1661 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1662 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1663 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1664#endif
1665
1666#endif
1667
1668/*****************************************************************************/
963 1669
964#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1670#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
965 1671
966#if EV_MINPRI == EV_MAXPRI 1672#if EV_MINPRI == EV_MAXPRI
967# define ABSPRI(w) (((W)w), 0) 1673# define ABSPRI(w) (((W)w), 0)
968#else 1674#else
969# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1675# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
970#endif 1676#endif
971 1677
972#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1678#define EMPTY /* required for microsofts broken pseudo-c compiler */
973#define EMPTY2(a,b) /* used to suppress some warnings */
974 1679
975typedef ev_watcher *W; 1680typedef ev_watcher *W;
976typedef ev_watcher_list *WL; 1681typedef ev_watcher_list *WL;
977typedef ev_watcher_time *WT; 1682typedef ev_watcher_time *WT;
978 1683
… …
1003# include "ev_win32.c" 1708# include "ev_win32.c"
1004#endif 1709#endif
1005 1710
1006/*****************************************************************************/ 1711/*****************************************************************************/
1007 1712
1713#if EV_USE_LINUXAIO
1714# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1715#endif
1716
1008/* define a suitable floor function (only used by periodics atm) */ 1717/* define a suitable floor function (only used by periodics atm) */
1009 1718
1010#if EV_USE_FLOOR 1719#if EV_USE_FLOOR
1011# include <math.h> 1720# include <math.h>
1012# define ev_floor(v) floor (v) 1721# define ev_floor(v) floor (v)
1013#else 1722#else
1014 1723
1015#include <float.h> 1724#include <float.h>
1016 1725
1017/* a floor() replacement function, should be independent of ev_tstamp type */ 1726/* a floor() replacement function, should be independent of ev_tstamp type */
1727ecb_noinline
1018static ev_tstamp noinline 1728static ev_tstamp
1019ev_floor (ev_tstamp v) 1729ev_floor (ev_tstamp v)
1020{ 1730{
1021 /* the choice of shift factor is not terribly important */ 1731 /* the choice of shift factor is not terribly important */
1022#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1732#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1023 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1733 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1024#else 1734#else
1025 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1735 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1026#endif 1736#endif
1027 1737
1738 /* special treatment for negative arguments */
1739 if (ecb_expect_false (v < 0.))
1740 {
1741 ev_tstamp f = -ev_floor (-v);
1742
1743 return f - (f == v ? 0 : 1);
1744 }
1745
1028 /* argument too large for an unsigned long? */ 1746 /* argument too large for an unsigned long? then reduce it */
1029 if (expect_false (v >= shift)) 1747 if (ecb_expect_false (v >= shift))
1030 { 1748 {
1031 ev_tstamp f; 1749 ev_tstamp f;
1032 1750
1033 if (v == v - 1.) 1751 if (v == v - 1.)
1034 return v; /* very large number */ 1752 return v; /* very large numbers are assumed to be integer */
1035 1753
1036 f = shift * ev_floor (v * (1. / shift)); 1754 f = shift * ev_floor (v * (1. / shift));
1037 return f + ev_floor (v - f); 1755 return f + ev_floor (v - f);
1038 } 1756 }
1039 1757
1040 /* special treatment for negative args? */
1041 if (expect_false (v < 0.))
1042 {
1043 ev_tstamp f = -ev_floor (-v);
1044
1045 return f - (f == v ? 0 : 1);
1046 }
1047
1048 /* fits into an unsigned long */ 1758 /* fits into an unsigned long */
1049 return (unsigned long)v; 1759 return (unsigned long)v;
1050} 1760}
1051 1761
1052#endif 1762#endif
… …
1055 1765
1056#ifdef __linux 1766#ifdef __linux
1057# include <sys/utsname.h> 1767# include <sys/utsname.h>
1058#endif 1768#endif
1059 1769
1060static unsigned int noinline ecb_cold 1770ecb_noinline ecb_cold
1771static unsigned int
1061ev_linux_version (void) 1772ev_linux_version (void)
1062{ 1773{
1063#ifdef __linux 1774#ifdef __linux
1064 unsigned int v = 0; 1775 unsigned int v = 0;
1065 struct utsname buf; 1776 struct utsname buf;
… …
1094} 1805}
1095 1806
1096/*****************************************************************************/ 1807/*****************************************************************************/
1097 1808
1098#if EV_AVOID_STDIO 1809#if EV_AVOID_STDIO
1099static void noinline ecb_cold 1810ecb_noinline ecb_cold
1811static void
1100ev_printerr (const char *msg) 1812ev_printerr (const char *msg)
1101{ 1813{
1102 write (STDERR_FILENO, msg, strlen (msg)); 1814 write (STDERR_FILENO, msg, strlen (msg));
1103} 1815}
1104#endif 1816#endif
1105 1817
1106static void (*syserr_cb)(const char *msg); 1818static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1107 1819
1108void ecb_cold 1820ecb_cold
1821void
1109ev_set_syserr_cb (void (*cb)(const char *msg)) 1822ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1110{ 1823{
1111 syserr_cb = cb; 1824 syserr_cb = cb;
1112} 1825}
1113 1826
1114static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1115ev_syserr (const char *msg) 1829ev_syserr (const char *msg)
1116{ 1830{
1117 if (!msg) 1831 if (!msg)
1118 msg = "(libev) system error"; 1832 msg = "(libev) system error";
1119 1833
… …
1132 abort (); 1846 abort ();
1133 } 1847 }
1134} 1848}
1135 1849
1136static void * 1850static void *
1137ev_realloc_emul (void *ptr, long size) 1851ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1138{ 1852{
1139#if __GLIBC__
1140 return realloc (ptr, size);
1141#else
1142 /* some systems, notably openbsd and darwin, fail to properly 1853 /* some systems, notably openbsd and darwin, fail to properly
1143 * implement realloc (x, 0) (as required by both ansi c-89 and 1854 * implement realloc (x, 0) (as required by both ansi c-89 and
1144 * the single unix specification, so work around them here. 1855 * the single unix specification, so work around them here.
1856 * recently, also (at least) fedora and debian started breaking it,
1857 * despite documenting it otherwise.
1145 */ 1858 */
1146 1859
1147 if (size) 1860 if (size)
1148 return realloc (ptr, size); 1861 return realloc (ptr, size);
1149 1862
1150 free (ptr); 1863 free (ptr);
1151 return 0; 1864 return 0;
1152#endif
1153} 1865}
1154 1866
1155static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1867static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1156 1868
1157void ecb_cold 1869ecb_cold
1870void
1158ev_set_allocator (void *(*cb)(void *ptr, long size)) 1871ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1159{ 1872{
1160 alloc = cb; 1873 alloc = cb;
1161} 1874}
1162 1875
1163inline_speed void * 1876inline_speed void *
… …
1190typedef struct 1903typedef struct
1191{ 1904{
1192 WL head; 1905 WL head;
1193 unsigned char events; /* the events watched for */ 1906 unsigned char events; /* the events watched for */
1194 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1907 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1195 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1908 unsigned char emask; /* some backends store the actual kernel mask in here */
1196 unsigned char unused; 1909 unsigned char eflags; /* flags field for use by backends */
1197#if EV_USE_EPOLL 1910#if EV_USE_EPOLL
1198 unsigned int egen; /* generation counter to counter epoll bugs */ 1911 unsigned int egen; /* generation counter to counter epoll bugs */
1199#endif 1912#endif
1200#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1913#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1201 SOCKET handle; 1914 SOCKET handle;
… …
1255 static struct ev_loop default_loop_struct; 1968 static struct ev_loop default_loop_struct;
1256 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 1969 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1257 1970
1258#else 1971#else
1259 1972
1260 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 1973 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1261 #define VAR(name,decl) static decl; 1974 #define VAR(name,decl) static decl;
1262 #include "ev_vars.h" 1975 #include "ev_vars.h"
1263 #undef VAR 1976 #undef VAR
1264 1977
1265 static int ev_default_loop_ptr; 1978 static int ev_default_loop_ptr;
1266 1979
1267#endif 1980#endif
1268 1981
1269#if EV_FEATURE_API 1982#if EV_FEATURE_API
1270# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1983# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1271# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1984# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1272# define EV_INVOKE_PENDING invoke_cb (EV_A) 1985# define EV_INVOKE_PENDING invoke_cb (EV_A)
1273#else 1986#else
1274# define EV_RELEASE_CB (void)0 1987# define EV_RELEASE_CB (void)0
1275# define EV_ACQUIRE_CB (void)0 1988# define EV_ACQUIRE_CB (void)0
1276# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1989# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1280 1993
1281/*****************************************************************************/ 1994/*****************************************************************************/
1282 1995
1283#ifndef EV_HAVE_EV_TIME 1996#ifndef EV_HAVE_EV_TIME
1284ev_tstamp 1997ev_tstamp
1285ev_time (void) 1998ev_time (void) EV_NOEXCEPT
1286{ 1999{
1287#if EV_USE_REALTIME 2000#if EV_USE_REALTIME
1288 if (expect_true (have_realtime)) 2001 if (ecb_expect_true (have_realtime))
1289 { 2002 {
1290 struct timespec ts; 2003 struct timespec ts;
1291 clock_gettime (CLOCK_REALTIME, &ts); 2004 clock_gettime (CLOCK_REALTIME, &ts);
1292 return ts.tv_sec + ts.tv_nsec * 1e-9; 2005 return EV_TS_GET (ts);
1293 } 2006 }
1294#endif 2007#endif
1295 2008
2009 {
1296 struct timeval tv; 2010 struct timeval tv;
1297 gettimeofday (&tv, 0); 2011 gettimeofday (&tv, 0);
1298 return tv.tv_sec + tv.tv_usec * 1e-6; 2012 return EV_TV_GET (tv);
2013 }
1299} 2014}
1300#endif 2015#endif
1301 2016
1302inline_size ev_tstamp 2017inline_size ev_tstamp
1303get_clock (void) 2018get_clock (void)
1304{ 2019{
1305#if EV_USE_MONOTONIC 2020#if EV_USE_MONOTONIC
1306 if (expect_true (have_monotonic)) 2021 if (ecb_expect_true (have_monotonic))
1307 { 2022 {
1308 struct timespec ts; 2023 struct timespec ts;
1309 clock_gettime (CLOCK_MONOTONIC, &ts); 2024 clock_gettime (CLOCK_MONOTONIC, &ts);
1310 return ts.tv_sec + ts.tv_nsec * 1e-9; 2025 return EV_TS_GET (ts);
1311 } 2026 }
1312#endif 2027#endif
1313 2028
1314 return ev_time (); 2029 return ev_time ();
1315} 2030}
1316 2031
1317#if EV_MULTIPLICITY 2032#if EV_MULTIPLICITY
1318ev_tstamp 2033ev_tstamp
1319ev_now (EV_P) 2034ev_now (EV_P) EV_NOEXCEPT
1320{ 2035{
1321 return ev_rt_now; 2036 return ev_rt_now;
1322} 2037}
1323#endif 2038#endif
1324 2039
1325void 2040void
1326ev_sleep (ev_tstamp delay) 2041ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1327{ 2042{
1328 if (delay > 0.) 2043 if (delay > EV_TS_CONST (0.))
1329 { 2044 {
1330#if EV_USE_NANOSLEEP 2045#if EV_USE_NANOSLEEP
1331 struct timespec ts; 2046 struct timespec ts;
1332 2047
1333 EV_TS_SET (ts, delay); 2048 EV_TS_SET (ts, delay);
1334 nanosleep (&ts, 0); 2049 nanosleep (&ts, 0);
1335#elif defined(_WIN32) 2050#elif defined _WIN32
2051 /* maybe this should round up, as ms is very low resolution */
2052 /* compared to select (µs) or nanosleep (ns) */
1336 Sleep ((unsigned long)(delay * 1e3)); 2053 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1337#else 2054#else
1338 struct timeval tv; 2055 struct timeval tv;
1339 2056
1340 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2057 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1341 /* something not guaranteed by newer posix versions, but guaranteed */ 2058 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1371 } 2088 }
1372 2089
1373 return ncur; 2090 return ncur;
1374} 2091}
1375 2092
1376static void * noinline ecb_cold 2093ecb_noinline ecb_cold
2094static void *
1377array_realloc (int elem, void *base, int *cur, int cnt) 2095array_realloc (int elem, void *base, int *cur, int cnt)
1378{ 2096{
1379 *cur = array_nextsize (elem, *cur, cnt); 2097 *cur = array_nextsize (elem, *cur, cnt);
1380 return ev_realloc (base, elem * *cur); 2098 return ev_realloc (base, elem * *cur);
1381} 2099}
1382 2100
2101#define array_needsize_noinit(base,offset,count)
2102
1383#define array_init_zero(base,count) \ 2103#define array_needsize_zerofill(base,offset,count) \
1384 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2104 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1385 2105
1386#define array_needsize(type,base,cur,cnt,init) \ 2106#define array_needsize(type,base,cur,cnt,init) \
1387 if (expect_false ((cnt) > (cur))) \ 2107 if (ecb_expect_false ((cnt) > (cur))) \
1388 { \ 2108 { \
1389 int ecb_unused ocur_ = (cur); \ 2109 ecb_unused int ocur_ = (cur); \
1390 (base) = (type *)array_realloc \ 2110 (base) = (type *)array_realloc \
1391 (sizeof (type), (base), &(cur), (cnt)); \ 2111 (sizeof (type), (base), &(cur), (cnt)); \
1392 init ((base) + (ocur_), (cur) - ocur_); \ 2112 init ((base), ocur_, ((cur) - ocur_)); \
1393 } 2113 }
1394 2114
1395#if 0 2115#if 0
1396#define array_slim(type,stem) \ 2116#define array_slim(type,stem) \
1397 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2117 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1406 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2126 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1407 2127
1408/*****************************************************************************/ 2128/*****************************************************************************/
1409 2129
1410/* dummy callback for pending events */ 2130/* dummy callback for pending events */
1411static void noinline 2131ecb_noinline
2132static void
1412pendingcb (EV_P_ ev_prepare *w, int revents) 2133pendingcb (EV_P_ ev_prepare *w, int revents)
1413{ 2134{
1414} 2135}
1415 2136
1416void noinline 2137ecb_noinline
2138void
1417ev_feed_event (EV_P_ void *w, int revents) 2139ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1418{ 2140{
1419 W w_ = (W)w; 2141 W w_ = (W)w;
1420 int pri = ABSPRI (w_); 2142 int pri = ABSPRI (w_);
1421 2143
1422 if (expect_false (w_->pending)) 2144 if (ecb_expect_false (w_->pending))
1423 pendings [pri][w_->pending - 1].events |= revents; 2145 pendings [pri][w_->pending - 1].events |= revents;
1424 else 2146 else
1425 { 2147 {
1426 w_->pending = ++pendingcnt [pri]; 2148 w_->pending = ++pendingcnt [pri];
1427 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2149 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1428 pendings [pri][w_->pending - 1].w = w_; 2150 pendings [pri][w_->pending - 1].w = w_;
1429 pendings [pri][w_->pending - 1].events = revents; 2151 pendings [pri][w_->pending - 1].events = revents;
1430 } 2152 }
2153
2154 pendingpri = NUMPRI - 1;
1431} 2155}
1432 2156
1433inline_speed void 2157inline_speed void
1434feed_reverse (EV_P_ W w) 2158feed_reverse (EV_P_ W w)
1435{ 2159{
1436 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2160 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1437 rfeeds [rfeedcnt++] = w; 2161 rfeeds [rfeedcnt++] = w;
1438} 2162}
1439 2163
1440inline_size void 2164inline_size void
1441feed_reverse_done (EV_P_ int revents) 2165feed_reverse_done (EV_P_ int revents)
… …
1476inline_speed void 2200inline_speed void
1477fd_event (EV_P_ int fd, int revents) 2201fd_event (EV_P_ int fd, int revents)
1478{ 2202{
1479 ANFD *anfd = anfds + fd; 2203 ANFD *anfd = anfds + fd;
1480 2204
1481 if (expect_true (!anfd->reify)) 2205 if (ecb_expect_true (!anfd->reify))
1482 fd_event_nocheck (EV_A_ fd, revents); 2206 fd_event_nocheck (EV_A_ fd, revents);
1483} 2207}
1484 2208
1485void 2209void
1486ev_feed_fd_event (EV_P_ int fd, int revents) 2210ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1487{ 2211{
1488 if (fd >= 0 && fd < anfdmax) 2212 if (fd >= 0 && fd < anfdmax)
1489 fd_event_nocheck (EV_A_ fd, revents); 2213 fd_event_nocheck (EV_A_ fd, revents);
1490} 2214}
1491 2215
… …
1528 ev_io *w; 2252 ev_io *w;
1529 2253
1530 unsigned char o_events = anfd->events; 2254 unsigned char o_events = anfd->events;
1531 unsigned char o_reify = anfd->reify; 2255 unsigned char o_reify = anfd->reify;
1532 2256
1533 anfd->reify = 0; 2257 anfd->reify = 0;
1534 2258
1535 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2259 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1536 { 2260 {
1537 anfd->events = 0; 2261 anfd->events = 0;
1538 2262
1539 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2263 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1540 anfd->events |= (unsigned char)w->events; 2264 anfd->events |= (unsigned char)w->events;
… …
1549 2273
1550 fdchangecnt = 0; 2274 fdchangecnt = 0;
1551} 2275}
1552 2276
1553/* something about the given fd changed */ 2277/* something about the given fd changed */
1554inline_size void 2278inline_size
2279void
1555fd_change (EV_P_ int fd, int flags) 2280fd_change (EV_P_ int fd, int flags)
1556{ 2281{
1557 unsigned char reify = anfds [fd].reify; 2282 unsigned char reify = anfds [fd].reify;
1558 anfds [fd].reify |= flags; 2283 anfds [fd].reify |= flags;
1559 2284
1560 if (expect_true (!reify)) 2285 if (ecb_expect_true (!reify))
1561 { 2286 {
1562 ++fdchangecnt; 2287 ++fdchangecnt;
1563 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2288 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1564 fdchanges [fdchangecnt - 1] = fd; 2289 fdchanges [fdchangecnt - 1] = fd;
1565 } 2290 }
1566} 2291}
1567 2292
1568/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2293/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1569inline_speed void ecb_cold 2294inline_speed ecb_cold void
1570fd_kill (EV_P_ int fd) 2295fd_kill (EV_P_ int fd)
1571{ 2296{
1572 ev_io *w; 2297 ev_io *w;
1573 2298
1574 while ((w = (ev_io *)anfds [fd].head)) 2299 while ((w = (ev_io *)anfds [fd].head))
… …
1577 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2302 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1578 } 2303 }
1579} 2304}
1580 2305
1581/* check whether the given fd is actually valid, for error recovery */ 2306/* check whether the given fd is actually valid, for error recovery */
1582inline_size int ecb_cold 2307inline_size ecb_cold int
1583fd_valid (int fd) 2308fd_valid (int fd)
1584{ 2309{
1585#ifdef _WIN32 2310#ifdef _WIN32
1586 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2311 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1587#else 2312#else
1588 return fcntl (fd, F_GETFD) != -1; 2313 return fcntl (fd, F_GETFD) != -1;
1589#endif 2314#endif
1590} 2315}
1591 2316
1592/* called on EBADF to verify fds */ 2317/* called on EBADF to verify fds */
1593static void noinline ecb_cold 2318ecb_noinline ecb_cold
2319static void
1594fd_ebadf (EV_P) 2320fd_ebadf (EV_P)
1595{ 2321{
1596 int fd; 2322 int fd;
1597 2323
1598 for (fd = 0; fd < anfdmax; ++fd) 2324 for (fd = 0; fd < anfdmax; ++fd)
… …
1600 if (!fd_valid (fd) && errno == EBADF) 2326 if (!fd_valid (fd) && errno == EBADF)
1601 fd_kill (EV_A_ fd); 2327 fd_kill (EV_A_ fd);
1602} 2328}
1603 2329
1604/* called on ENOMEM in select/poll to kill some fds and retry */ 2330/* called on ENOMEM in select/poll to kill some fds and retry */
1605static void noinline ecb_cold 2331ecb_noinline ecb_cold
2332static void
1606fd_enomem (EV_P) 2333fd_enomem (EV_P)
1607{ 2334{
1608 int fd; 2335 int fd;
1609 2336
1610 for (fd = anfdmax; fd--; ) 2337 for (fd = anfdmax; fd--; )
… …
1614 break; 2341 break;
1615 } 2342 }
1616} 2343}
1617 2344
1618/* usually called after fork if backend needs to re-arm all fds from scratch */ 2345/* usually called after fork if backend needs to re-arm all fds from scratch */
1619static void noinline 2346ecb_noinline
2347static void
1620fd_rearm_all (EV_P) 2348fd_rearm_all (EV_P)
1621{ 2349{
1622 int fd; 2350 int fd;
1623 2351
1624 for (fd = 0; fd < anfdmax; ++fd) 2352 for (fd = 0; fd < anfdmax; ++fd)
… …
1677 ev_tstamp minat; 2405 ev_tstamp minat;
1678 ANHE *minpos; 2406 ANHE *minpos;
1679 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2407 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1680 2408
1681 /* find minimum child */ 2409 /* find minimum child */
1682 if (expect_true (pos + DHEAP - 1 < E)) 2410 if (ecb_expect_true (pos + DHEAP - 1 < E))
1683 { 2411 {
1684 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2412 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1685 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2413 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1686 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2414 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1687 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2415 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1688 } 2416 }
1689 else if (pos < E) 2417 else if (pos < E)
1690 { 2418 {
1691 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2419 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1692 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2420 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1693 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2421 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1694 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2422 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1695 } 2423 }
1696 else 2424 else
1697 break; 2425 break;
1698 2426
1699 if (ANHE_at (he) <= minat) 2427 if (ANHE_at (he) <= minat)
… …
1707 2435
1708 heap [k] = he; 2436 heap [k] = he;
1709 ev_active (ANHE_w (he)) = k; 2437 ev_active (ANHE_w (he)) = k;
1710} 2438}
1711 2439
1712#else /* 4HEAP */ 2440#else /* not 4HEAP */
1713 2441
1714#define HEAP0 1 2442#define HEAP0 1
1715#define HPARENT(k) ((k) >> 1) 2443#define HPARENT(k) ((k) >> 1)
1716#define UPHEAP_DONE(p,k) (!(p)) 2444#define UPHEAP_DONE(p,k) (!(p))
1717 2445
… …
1805 2533
1806/*****************************************************************************/ 2534/*****************************************************************************/
1807 2535
1808#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2536#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1809 2537
1810static void noinline ecb_cold 2538ecb_noinline ecb_cold
2539static void
1811evpipe_init (EV_P) 2540evpipe_init (EV_P)
1812{ 2541{
1813 if (!ev_is_active (&pipe_w)) 2542 if (!ev_is_active (&pipe_w))
1814 { 2543 {
2544 int fds [2];
2545
1815# if EV_USE_EVENTFD 2546# if EV_USE_EVENTFD
2547 fds [0] = -1;
1816 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2548 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1817 if (evfd < 0 && errno == EINVAL) 2549 if (fds [1] < 0 && errno == EINVAL)
1818 evfd = eventfd (0, 0); 2550 fds [1] = eventfd (0, 0);
1819 2551
1820 if (evfd >= 0) 2552 if (fds [1] < 0)
2553# endif
1821 { 2554 {
2555 while (pipe (fds))
2556 ev_syserr ("(libev) error creating signal/async pipe");
2557
2558 fd_intern (fds [0]);
2559 }
2560
1822 evpipe [0] = -1; 2561 evpipe [0] = fds [0];
1823 fd_intern (evfd); /* doing it twice doesn't hurt */ 2562
1824 ev_io_set (&pipe_w, evfd, EV_READ); 2563 if (evpipe [1] < 0)
2564 evpipe [1] = fds [1]; /* first call, set write fd */
2565 else
2566 {
2567 /* on subsequent calls, do not change evpipe [1] */
2568 /* so that evpipe_write can always rely on its value. */
2569 /* this branch does not do anything sensible on windows, */
2570 /* so must not be executed on windows */
2571
2572 dup2 (fds [1], evpipe [1]);
2573 close (fds [1]);
2574 }
2575
2576 fd_intern (evpipe [1]);
2577
2578 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2579 ev_io_start (EV_A_ &pipe_w);
2580 ev_unref (EV_A); /* watcher should not keep loop alive */
2581 }
2582}
2583
2584inline_speed void
2585evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2586{
2587 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2588
2589 if (ecb_expect_true (*flag))
2590 return;
2591
2592 *flag = 1;
2593 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2594
2595 pipe_write_skipped = 1;
2596
2597 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2598
2599 if (pipe_write_wanted)
2600 {
2601 int old_errno;
2602
2603 pipe_write_skipped = 0;
2604 ECB_MEMORY_FENCE_RELEASE;
2605
2606 old_errno = errno; /* save errno because write will clobber it */
2607
2608#if EV_USE_EVENTFD
2609 if (evpipe [0] < 0)
2610 {
2611 uint64_t counter = 1;
2612 write (evpipe [1], &counter, sizeof (uint64_t));
1825 } 2613 }
1826 else 2614 else
1827# endif 2615#endif
1828 { 2616 {
1829 while (pipe (evpipe)) 2617#ifdef _WIN32
1830 ev_syserr ("(libev) error creating signal/async pipe"); 2618 WSABUF buf;
1831 2619 DWORD sent;
1832 fd_intern (evpipe [0]); 2620 buf.buf = (char *)&buf;
1833 fd_intern (evpipe [1]); 2621 buf.len = 1;
1834 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2622 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1835 } 2623#else
1836
1837 ev_io_start (EV_A_ &pipe_w);
1838 ev_unref (EV_A); /* watcher should not keep loop alive */
1839 }
1840}
1841
1842inline_speed void
1843evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1844{
1845 if (expect_true (*flag))
1846 return;
1847
1848 *flag = 1;
1849
1850 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1851
1852 pipe_write_skipped = 1;
1853
1854 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1855
1856 if (pipe_write_wanted)
1857 {
1858 int old_errno;
1859
1860 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1861
1862 old_errno = errno; /* save errno because write will clobber it */
1863
1864#if EV_USE_EVENTFD
1865 if (evfd >= 0)
1866 {
1867 uint64_t counter = 1;
1868 write (evfd, &counter, sizeof (uint64_t));
1869 }
1870 else
1871#endif
1872 {
1873 /* win32 people keep sending patches that change this write() to send() */
1874 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1875 /* so when you think this write should be a send instead, please find out */
1876 /* where your send() is from - it's definitely not the microsoft send, and */
1877 /* tell me. thank you. */
1878 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1879 /* check the ev documentation on how to use this flag */
1880 write (evpipe [1], &(evpipe [1]), 1); 2624 write (evpipe [1], &(evpipe [1]), 1);
2625#endif
1881 } 2626 }
1882 2627
1883 errno = old_errno; 2628 errno = old_errno;
1884 } 2629 }
1885} 2630}
… …
1892 int i; 2637 int i;
1893 2638
1894 if (revents & EV_READ) 2639 if (revents & EV_READ)
1895 { 2640 {
1896#if EV_USE_EVENTFD 2641#if EV_USE_EVENTFD
1897 if (evfd >= 0) 2642 if (evpipe [0] < 0)
1898 { 2643 {
1899 uint64_t counter; 2644 uint64_t counter;
1900 read (evfd, &counter, sizeof (uint64_t)); 2645 read (evpipe [1], &counter, sizeof (uint64_t));
1901 } 2646 }
1902 else 2647 else
1903#endif 2648#endif
1904 { 2649 {
1905 char dummy; 2650 char dummy[4];
1906 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2651#ifdef _WIN32
2652 WSABUF buf;
2653 DWORD recvd;
2654 DWORD flags = 0;
2655 buf.buf = dummy;
2656 buf.len = sizeof (dummy);
2657 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2658#else
1907 read (evpipe [0], &dummy, 1); 2659 read (evpipe [0], &dummy, sizeof (dummy));
2660#endif
1908 } 2661 }
1909 } 2662 }
1910 2663
1911 pipe_write_skipped = 0; 2664 pipe_write_skipped = 0;
2665
2666 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1912 2667
1913#if EV_SIGNAL_ENABLE 2668#if EV_SIGNAL_ENABLE
1914 if (sig_pending) 2669 if (sig_pending)
1915 { 2670 {
1916 sig_pending = 0; 2671 sig_pending = 0;
1917 2672
2673 ECB_MEMORY_FENCE;
2674
1918 for (i = EV_NSIG - 1; i--; ) 2675 for (i = EV_NSIG - 1; i--; )
1919 if (expect_false (signals [i].pending)) 2676 if (ecb_expect_false (signals [i].pending))
1920 ev_feed_signal_event (EV_A_ i + 1); 2677 ev_feed_signal_event (EV_A_ i + 1);
1921 } 2678 }
1922#endif 2679#endif
1923 2680
1924#if EV_ASYNC_ENABLE 2681#if EV_ASYNC_ENABLE
1925 if (async_pending) 2682 if (async_pending)
1926 { 2683 {
1927 async_pending = 0; 2684 async_pending = 0;
2685
2686 ECB_MEMORY_FENCE;
1928 2687
1929 for (i = asynccnt; i--; ) 2688 for (i = asynccnt; i--; )
1930 if (asyncs [i]->sent) 2689 if (asyncs [i]->sent)
1931 { 2690 {
1932 asyncs [i]->sent = 0; 2691 asyncs [i]->sent = 0;
2692 ECB_MEMORY_FENCE_RELEASE;
1933 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2693 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1934 } 2694 }
1935 } 2695 }
1936#endif 2696#endif
1937} 2697}
1938 2698
1939/*****************************************************************************/ 2699/*****************************************************************************/
1940 2700
1941void 2701void
1942ev_feed_signal (int signum) 2702ev_feed_signal (int signum) EV_NOEXCEPT
1943{ 2703{
1944#if EV_MULTIPLICITY 2704#if EV_MULTIPLICITY
2705 EV_P;
2706 ECB_MEMORY_FENCE_ACQUIRE;
1945 EV_P = signals [signum - 1].loop; 2707 EV_A = signals [signum - 1].loop;
1946 2708
1947 if (!EV_A) 2709 if (!EV_A)
1948 return; 2710 return;
1949#endif 2711#endif
1950 2712
1951 if (!ev_active (&pipe_w))
1952 return;
1953
1954 signals [signum - 1].pending = 1; 2713 signals [signum - 1].pending = 1;
1955 evpipe_write (EV_A_ &sig_pending); 2714 evpipe_write (EV_A_ &sig_pending);
1956} 2715}
1957 2716
1958static void 2717static void
… …
1963#endif 2722#endif
1964 2723
1965 ev_feed_signal (signum); 2724 ev_feed_signal (signum);
1966} 2725}
1967 2726
1968void noinline 2727ecb_noinline
2728void
1969ev_feed_signal_event (EV_P_ int signum) 2729ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
1970{ 2730{
1971 WL w; 2731 WL w;
1972 2732
1973 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2733 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
1974 return; 2734 return;
1975 2735
1976 --signum; 2736 --signum;
1977 2737
1978#if EV_MULTIPLICITY 2738#if EV_MULTIPLICITY
1979 /* it is permissible to try to feed a signal to the wrong loop */ 2739 /* it is permissible to try to feed a signal to the wrong loop */
1980 /* or, likely more useful, feeding a signal nobody is waiting for */ 2740 /* or, likely more useful, feeding a signal nobody is waiting for */
1981 2741
1982 if (expect_false (signals [signum].loop != EV_A)) 2742 if (ecb_expect_false (signals [signum].loop != EV_A))
1983 return; 2743 return;
1984#endif 2744#endif
1985 2745
1986 signals [signum].pending = 0; 2746 signals [signum].pending = 0;
2747 ECB_MEMORY_FENCE_RELEASE;
1987 2748
1988 for (w = signals [signum].head; w; w = w->next) 2749 for (w = signals [signum].head; w; w = w->next)
1989 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2750 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1990} 2751}
1991 2752
… …
2082# include "ev_kqueue.c" 2843# include "ev_kqueue.c"
2083#endif 2844#endif
2084#if EV_USE_EPOLL 2845#if EV_USE_EPOLL
2085# include "ev_epoll.c" 2846# include "ev_epoll.c"
2086#endif 2847#endif
2848#if EV_USE_LINUXAIO
2849# include "ev_linuxaio.c"
2850#endif
2851#if EV_USE_IOURING
2852# include "ev_iouring.c"
2853#endif
2087#if EV_USE_POLL 2854#if EV_USE_POLL
2088# include "ev_poll.c" 2855# include "ev_poll.c"
2089#endif 2856#endif
2090#if EV_USE_SELECT 2857#if EV_USE_SELECT
2091# include "ev_select.c" 2858# include "ev_select.c"
2092#endif 2859#endif
2093 2860
2094int ecb_cold 2861ecb_cold int
2095ev_version_major (void) 2862ev_version_major (void) EV_NOEXCEPT
2096{ 2863{
2097 return EV_VERSION_MAJOR; 2864 return EV_VERSION_MAJOR;
2098} 2865}
2099 2866
2100int ecb_cold 2867ecb_cold int
2101ev_version_minor (void) 2868ev_version_minor (void) EV_NOEXCEPT
2102{ 2869{
2103 return EV_VERSION_MINOR; 2870 return EV_VERSION_MINOR;
2104} 2871}
2105 2872
2106/* return true if we are running with elevated privileges and should ignore env variables */ 2873/* return true if we are running with elevated privileges and should ignore env variables */
2107int inline_size ecb_cold 2874inline_size ecb_cold int
2108enable_secure (void) 2875enable_secure (void)
2109{ 2876{
2110#ifdef _WIN32 2877#ifdef _WIN32
2111 return 0; 2878 return 0;
2112#else 2879#else
2113 return getuid () != geteuid () 2880 return getuid () != geteuid ()
2114 || getgid () != getegid (); 2881 || getgid () != getegid ();
2115#endif 2882#endif
2116} 2883}
2117 2884
2118unsigned int ecb_cold 2885ecb_cold
2886unsigned int
2119ev_supported_backends (void) 2887ev_supported_backends (void) EV_NOEXCEPT
2120{ 2888{
2121 unsigned int flags = 0; 2889 unsigned int flags = 0;
2122 2890
2123 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2891 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2124 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2892 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2125 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2893 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2894 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2895 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2126 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2896 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2127 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2897 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2128 2898
2129 return flags; 2899 return flags;
2130} 2900}
2131 2901
2132unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2133ev_recommended_backends (void) 2904ev_recommended_backends (void) EV_NOEXCEPT
2134{ 2905{
2135 unsigned int flags = ev_supported_backends (); 2906 unsigned int flags = ev_supported_backends ();
2136 2907
2137#ifndef __NetBSD__ 2908#ifndef __NetBSD__
2138 /* kqueue is borked on everything but netbsd apparently */ 2909 /* kqueue is borked on everything but netbsd apparently */
… …
2146#endif 2917#endif
2147#ifdef __FreeBSD__ 2918#ifdef __FreeBSD__
2148 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2919 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2149#endif 2920#endif
2150 2921
2922 /* TODO: linuxaio is very experimental */
2923#if !EV_RECOMMEND_LINUXAIO
2924 flags &= ~EVBACKEND_LINUXAIO;
2925#endif
2926 /* TODO: linuxaio is super experimental */
2927#if !EV_RECOMMEND_IOURING
2928 flags &= ~EVBACKEND_IOURING;
2929#endif
2930
2151 return flags; 2931 return flags;
2152} 2932}
2153 2933
2154unsigned int ecb_cold 2934ecb_cold
2935unsigned int
2155ev_embeddable_backends (void) 2936ev_embeddable_backends (void) EV_NOEXCEPT
2156{ 2937{
2157 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2938 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2158 2939
2159 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2940 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2160 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2941 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2161 flags &= ~EVBACKEND_EPOLL; 2942 flags &= ~EVBACKEND_EPOLL;
2162 2943
2944 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2945
2946 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2947 * because our backend_fd is the epoll fd we need as fallback.
2948 * if the kernel ever is fixed, this might change...
2949 */
2950
2163 return flags; 2951 return flags;
2164} 2952}
2165 2953
2166unsigned int 2954unsigned int
2167ev_backend (EV_P) 2955ev_backend (EV_P) EV_NOEXCEPT
2168{ 2956{
2169 return backend; 2957 return backend;
2170} 2958}
2171 2959
2172#if EV_FEATURE_API 2960#if EV_FEATURE_API
2173unsigned int 2961unsigned int
2174ev_iteration (EV_P) 2962ev_iteration (EV_P) EV_NOEXCEPT
2175{ 2963{
2176 return loop_count; 2964 return loop_count;
2177} 2965}
2178 2966
2179unsigned int 2967unsigned int
2180ev_depth (EV_P) 2968ev_depth (EV_P) EV_NOEXCEPT
2181{ 2969{
2182 return loop_depth; 2970 return loop_depth;
2183} 2971}
2184 2972
2185void 2973void
2186ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2974ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2187{ 2975{
2188 io_blocktime = interval; 2976 io_blocktime = interval;
2189} 2977}
2190 2978
2191void 2979void
2192ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2980ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2193{ 2981{
2194 timeout_blocktime = interval; 2982 timeout_blocktime = interval;
2195} 2983}
2196 2984
2197void 2985void
2198ev_set_userdata (EV_P_ void *data) 2986ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2199{ 2987{
2200 userdata = data; 2988 userdata = data;
2201} 2989}
2202 2990
2203void * 2991void *
2204ev_userdata (EV_P) 2992ev_userdata (EV_P) EV_NOEXCEPT
2205{ 2993{
2206 return userdata; 2994 return userdata;
2207} 2995}
2208 2996
2209void 2997void
2210ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2998ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2211{ 2999{
2212 invoke_cb = invoke_pending_cb; 3000 invoke_cb = invoke_pending_cb;
2213} 3001}
2214 3002
2215void 3003void
2216ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 3004ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2217{ 3005{
2218 release_cb = release; 3006 release_cb = release;
2219 acquire_cb = acquire; 3007 acquire_cb = acquire;
2220} 3008}
2221#endif 3009#endif
2222 3010
2223/* initialise a loop structure, must be zero-initialised */ 3011/* initialise a loop structure, must be zero-initialised */
2224static void noinline ecb_cold 3012ecb_noinline ecb_cold
3013static void
2225loop_init (EV_P_ unsigned int flags) 3014loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2226{ 3015{
2227 if (!backend) 3016 if (!backend)
2228 { 3017 {
2229 origflags = flags; 3018 origflags = flags;
2230 3019
… …
2275#if EV_ASYNC_ENABLE 3064#if EV_ASYNC_ENABLE
2276 async_pending = 0; 3065 async_pending = 0;
2277#endif 3066#endif
2278 pipe_write_skipped = 0; 3067 pipe_write_skipped = 0;
2279 pipe_write_wanted = 0; 3068 pipe_write_wanted = 0;
3069 evpipe [0] = -1;
3070 evpipe [1] = -1;
2280#if EV_USE_INOTIFY 3071#if EV_USE_INOTIFY
2281 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3072 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2282#endif 3073#endif
2283#if EV_USE_SIGNALFD 3074#if EV_USE_SIGNALFD
2284 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3075 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2286 3077
2287 if (!(flags & EVBACKEND_MASK)) 3078 if (!(flags & EVBACKEND_MASK))
2288 flags |= ev_recommended_backends (); 3079 flags |= ev_recommended_backends ();
2289 3080
2290#if EV_USE_IOCP 3081#if EV_USE_IOCP
2291 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3082 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2292#endif 3083#endif
2293#if EV_USE_PORT 3084#if EV_USE_PORT
2294 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3085 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2295#endif 3086#endif
2296#if EV_USE_KQUEUE 3087#if EV_USE_KQUEUE
2297 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3088 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3089#endif
3090#if EV_USE_IOURING
3091 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3092#endif
3093#if EV_USE_LINUXAIO
3094 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2298#endif 3095#endif
2299#if EV_USE_EPOLL 3096#if EV_USE_EPOLL
2300 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3097 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2301#endif 3098#endif
2302#if EV_USE_POLL 3099#if EV_USE_POLL
2303 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3100 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2304#endif 3101#endif
2305#if EV_USE_SELECT 3102#if EV_USE_SELECT
2306 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3103 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2307#endif 3104#endif
2308 3105
2309 ev_prepare_init (&pending_w, pendingcb); 3106 ev_prepare_init (&pending_w, pendingcb);
2310 3107
2311#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3108#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2314#endif 3111#endif
2315 } 3112 }
2316} 3113}
2317 3114
2318/* free up a loop structure */ 3115/* free up a loop structure */
2319void ecb_cold 3116ecb_cold
3117void
2320ev_loop_destroy (EV_P) 3118ev_loop_destroy (EV_P)
2321{ 3119{
2322 int i; 3120 int i;
2323 3121
2324#if EV_MULTIPLICITY 3122#if EV_MULTIPLICITY
… …
2327 return; 3125 return;
2328#endif 3126#endif
2329 3127
2330#if EV_CLEANUP_ENABLE 3128#if EV_CLEANUP_ENABLE
2331 /* queue cleanup watchers (and execute them) */ 3129 /* queue cleanup watchers (and execute them) */
2332 if (expect_false (cleanupcnt)) 3130 if (ecb_expect_false (cleanupcnt))
2333 { 3131 {
2334 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3132 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2335 EV_INVOKE_PENDING; 3133 EV_INVOKE_PENDING;
2336 } 3134 }
2337#endif 3135#endif
2338 3136
2339#if EV_CHILD_ENABLE 3137#if EV_CHILD_ENABLE
2340 if (ev_is_active (&childev)) 3138 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2341 { 3139 {
2342 ev_ref (EV_A); /* child watcher */ 3140 ev_ref (EV_A); /* child watcher */
2343 ev_signal_stop (EV_A_ &childev); 3141 ev_signal_stop (EV_A_ &childev);
2344 } 3142 }
2345#endif 3143#endif
… …
2347 if (ev_is_active (&pipe_w)) 3145 if (ev_is_active (&pipe_w))
2348 { 3146 {
2349 /*ev_ref (EV_A);*/ 3147 /*ev_ref (EV_A);*/
2350 /*ev_io_stop (EV_A_ &pipe_w);*/ 3148 /*ev_io_stop (EV_A_ &pipe_w);*/
2351 3149
2352#if EV_USE_EVENTFD
2353 if (evfd >= 0)
2354 close (evfd);
2355#endif
2356
2357 if (evpipe [0] >= 0)
2358 {
2359 EV_WIN32_CLOSE_FD (evpipe [0]); 3150 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2360 EV_WIN32_CLOSE_FD (evpipe [1]); 3151 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2361 }
2362 } 3152 }
2363 3153
2364#if EV_USE_SIGNALFD 3154#if EV_USE_SIGNALFD
2365 if (ev_is_active (&sigfd_w)) 3155 if (ev_is_active (&sigfd_w))
2366 close (sigfd); 3156 close (sigfd);
… …
2373 3163
2374 if (backend_fd >= 0) 3164 if (backend_fd >= 0)
2375 close (backend_fd); 3165 close (backend_fd);
2376 3166
2377#if EV_USE_IOCP 3167#if EV_USE_IOCP
2378 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3168 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2379#endif 3169#endif
2380#if EV_USE_PORT 3170#if EV_USE_PORT
2381 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3171 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2382#endif 3172#endif
2383#if EV_USE_KQUEUE 3173#if EV_USE_KQUEUE
2384 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3174 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3175#endif
3176#if EV_USE_IOURING
3177 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3178#endif
3179#if EV_USE_LINUXAIO
3180 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2385#endif 3181#endif
2386#if EV_USE_EPOLL 3182#if EV_USE_EPOLL
2387 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3183 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2388#endif 3184#endif
2389#if EV_USE_POLL 3185#if EV_USE_POLL
2390 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3186 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2391#endif 3187#endif
2392#if EV_USE_SELECT 3188#if EV_USE_SELECT
2393 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3189 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2394#endif 3190#endif
2395 3191
2396 for (i = NUMPRI; i--; ) 3192 for (i = NUMPRI; i--; )
2397 { 3193 {
2398 array_free (pending, [i]); 3194 array_free (pending, [i]);
… …
2440 3236
2441inline_size void 3237inline_size void
2442loop_fork (EV_P) 3238loop_fork (EV_P)
2443{ 3239{
2444#if EV_USE_PORT 3240#if EV_USE_PORT
2445 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3241 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2446#endif 3242#endif
2447#if EV_USE_KQUEUE 3243#if EV_USE_KQUEUE
2448 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3244 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3245#endif
3246#if EV_USE_IOURING
3247 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3248#endif
3249#if EV_USE_LINUXAIO
3250 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2449#endif 3251#endif
2450#if EV_USE_EPOLL 3252#if EV_USE_EPOLL
2451 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3253 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2452#endif 3254#endif
2453#if EV_USE_INOTIFY 3255#if EV_USE_INOTIFY
2454 infy_fork (EV_A); 3256 infy_fork (EV_A);
2455#endif 3257#endif
2456 3258
3259#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2457 if (ev_is_active (&pipe_w)) 3260 if (ev_is_active (&pipe_w) && postfork != 2)
2458 { 3261 {
2459 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3262 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2460 3263
2461 ev_ref (EV_A); 3264 ev_ref (EV_A);
2462 ev_io_stop (EV_A_ &pipe_w); 3265 ev_io_stop (EV_A_ &pipe_w);
2463 3266
2464#if EV_USE_EVENTFD
2465 if (evfd >= 0)
2466 close (evfd);
2467#endif
2468
2469 if (evpipe [0] >= 0) 3267 if (evpipe [0] >= 0)
2470 {
2471 EV_WIN32_CLOSE_FD (evpipe [0]); 3268 EV_WIN32_CLOSE_FD (evpipe [0]);
2472 EV_WIN32_CLOSE_FD (evpipe [1]);
2473 }
2474 3269
2475#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2476 evpipe_init (EV_A); 3270 evpipe_init (EV_A);
2477 /* now iterate over everything, in case we missed something */ 3271 /* iterate over everything, in case we missed something before */
2478 pipecb (EV_A_ &pipe_w, EV_READ); 3272 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2479#endif
2480 } 3273 }
3274#endif
2481 3275
2482 postfork = 0; 3276 postfork = 0;
2483} 3277}
2484 3278
2485#if EV_MULTIPLICITY 3279#if EV_MULTIPLICITY
2486 3280
3281ecb_cold
2487struct ev_loop * ecb_cold 3282struct ev_loop *
2488ev_loop_new (unsigned int flags) 3283ev_loop_new (unsigned int flags) EV_NOEXCEPT
2489{ 3284{
2490 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3285 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2491 3286
2492 memset (EV_A, 0, sizeof (struct ev_loop)); 3287 memset (EV_A, 0, sizeof (struct ev_loop));
2493 loop_init (EV_A_ flags); 3288 loop_init (EV_A_ flags);
… …
2500} 3295}
2501 3296
2502#endif /* multiplicity */ 3297#endif /* multiplicity */
2503 3298
2504#if EV_VERIFY 3299#if EV_VERIFY
2505static void noinline ecb_cold 3300ecb_noinline ecb_cold
3301static void
2506verify_watcher (EV_P_ W w) 3302verify_watcher (EV_P_ W w)
2507{ 3303{
2508 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3304 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2509 3305
2510 if (w->pending) 3306 if (w->pending)
2511 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3307 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2512} 3308}
2513 3309
2514static void noinline ecb_cold 3310ecb_noinline ecb_cold
3311static void
2515verify_heap (EV_P_ ANHE *heap, int N) 3312verify_heap (EV_P_ ANHE *heap, int N)
2516{ 3313{
2517 int i; 3314 int i;
2518 3315
2519 for (i = HEAP0; i < N + HEAP0; ++i) 3316 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2524 3321
2525 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3322 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2526 } 3323 }
2527} 3324}
2528 3325
2529static void noinline ecb_cold 3326ecb_noinline ecb_cold
3327static void
2530array_verify (EV_P_ W *ws, int cnt) 3328array_verify (EV_P_ W *ws, int cnt)
2531{ 3329{
2532 while (cnt--) 3330 while (cnt--)
2533 { 3331 {
2534 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3332 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2537} 3335}
2538#endif 3336#endif
2539 3337
2540#if EV_FEATURE_API 3338#if EV_FEATURE_API
2541void ecb_cold 3339void ecb_cold
2542ev_verify (EV_P) 3340ev_verify (EV_P) EV_NOEXCEPT
2543{ 3341{
2544#if EV_VERIFY 3342#if EV_VERIFY
2545 int i; 3343 int i;
2546 WL w; 3344 WL w, w2;
2547 3345
2548 assert (activecnt >= -1); 3346 assert (activecnt >= -1);
2549 3347
2550 assert (fdchangemax >= fdchangecnt); 3348 assert (fdchangemax >= fdchangecnt);
2551 for (i = 0; i < fdchangecnt; ++i) 3349 for (i = 0; i < fdchangecnt; ++i)
2552 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3350 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2553 3351
2554 assert (anfdmax >= 0); 3352 assert (anfdmax >= 0);
2555 for (i = 0; i < anfdmax; ++i) 3353 for (i = 0; i < anfdmax; ++i)
3354 {
3355 int j = 0;
3356
2556 for (w = anfds [i].head; w; w = w->next) 3357 for (w = w2 = anfds [i].head; w; w = w->next)
2557 { 3358 {
2558 verify_watcher (EV_A_ (W)w); 3359 verify_watcher (EV_A_ (W)w);
3360
3361 if (j++ & 1)
3362 {
3363 assert (("libev: io watcher list contains a loop", w != w2));
3364 w2 = w2->next;
3365 }
3366
2559 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3367 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2560 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3368 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2561 } 3369 }
3370 }
2562 3371
2563 assert (timermax >= timercnt); 3372 assert (timermax >= timercnt);
2564 verify_heap (EV_A_ timers, timercnt); 3373 verify_heap (EV_A_ timers, timercnt);
2565 3374
2566#if EV_PERIODIC_ENABLE 3375#if EV_PERIODIC_ENABLE
… …
2612#endif 3421#endif
2613} 3422}
2614#endif 3423#endif
2615 3424
2616#if EV_MULTIPLICITY 3425#if EV_MULTIPLICITY
3426ecb_cold
2617struct ev_loop * ecb_cold 3427struct ev_loop *
2618#else 3428#else
2619int 3429int
2620#endif 3430#endif
2621ev_default_loop (unsigned int flags) 3431ev_default_loop (unsigned int flags) EV_NOEXCEPT
2622{ 3432{
2623 if (!ev_default_loop_ptr) 3433 if (!ev_default_loop_ptr)
2624 { 3434 {
2625#if EV_MULTIPLICITY 3435#if EV_MULTIPLICITY
2626 EV_P = ev_default_loop_ptr = &default_loop_struct; 3436 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2645 3455
2646 return ev_default_loop_ptr; 3456 return ev_default_loop_ptr;
2647} 3457}
2648 3458
2649void 3459void
2650ev_loop_fork (EV_P) 3460ev_loop_fork (EV_P) EV_NOEXCEPT
2651{ 3461{
2652 postfork = 1; /* must be in line with ev_default_fork */ 3462 postfork = 1;
2653} 3463}
2654 3464
2655/*****************************************************************************/ 3465/*****************************************************************************/
2656 3466
2657void 3467void
… …
2659{ 3469{
2660 EV_CB_INVOKE ((W)w, revents); 3470 EV_CB_INVOKE ((W)w, revents);
2661} 3471}
2662 3472
2663unsigned int 3473unsigned int
2664ev_pending_count (EV_P) 3474ev_pending_count (EV_P) EV_NOEXCEPT
2665{ 3475{
2666 int pri; 3476 int pri;
2667 unsigned int count = 0; 3477 unsigned int count = 0;
2668 3478
2669 for (pri = NUMPRI; pri--; ) 3479 for (pri = NUMPRI; pri--; )
2670 count += pendingcnt [pri]; 3480 count += pendingcnt [pri];
2671 3481
2672 return count; 3482 return count;
2673} 3483}
2674 3484
2675void noinline 3485ecb_noinline
3486void
2676ev_invoke_pending (EV_P) 3487ev_invoke_pending (EV_P)
2677{ 3488{
2678 int pri; 3489 pendingpri = NUMPRI;
2679 3490
2680 for (pri = NUMPRI; pri--; ) 3491 do
3492 {
3493 --pendingpri;
3494
3495 /* pendingpri possibly gets modified in the inner loop */
2681 while (pendingcnt [pri]) 3496 while (pendingcnt [pendingpri])
2682 { 3497 {
2683 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3498 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2684 3499
2685 p->w->pending = 0; 3500 p->w->pending = 0;
2686 EV_CB_INVOKE (p->w, p->events); 3501 EV_CB_INVOKE (p->w, p->events);
2687 EV_FREQUENT_CHECK; 3502 EV_FREQUENT_CHECK;
2688 } 3503 }
3504 }
3505 while (pendingpri);
2689} 3506}
2690 3507
2691#if EV_IDLE_ENABLE 3508#if EV_IDLE_ENABLE
2692/* make idle watchers pending. this handles the "call-idle */ 3509/* make idle watchers pending. this handles the "call-idle */
2693/* only when higher priorities are idle" logic */ 3510/* only when higher priorities are idle" logic */
2694inline_size void 3511inline_size void
2695idle_reify (EV_P) 3512idle_reify (EV_P)
2696{ 3513{
2697 if (expect_false (idleall)) 3514 if (ecb_expect_false (idleall))
2698 { 3515 {
2699 int pri; 3516 int pri;
2700 3517
2701 for (pri = NUMPRI; pri--; ) 3518 for (pri = NUMPRI; pri--; )
2702 { 3519 {
… …
2732 { 3549 {
2733 ev_at (w) += w->repeat; 3550 ev_at (w) += w->repeat;
2734 if (ev_at (w) < mn_now) 3551 if (ev_at (w) < mn_now)
2735 ev_at (w) = mn_now; 3552 ev_at (w) = mn_now;
2736 3553
2737 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3554 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
2738 3555
2739 ANHE_at_cache (timers [HEAP0]); 3556 ANHE_at_cache (timers [HEAP0]);
2740 downheap (timers, timercnt, HEAP0); 3557 downheap (timers, timercnt, HEAP0);
2741 } 3558 }
2742 else 3559 else
… …
2751 } 3568 }
2752} 3569}
2753 3570
2754#if EV_PERIODIC_ENABLE 3571#if EV_PERIODIC_ENABLE
2755 3572
2756static void noinline 3573ecb_noinline
3574static void
2757periodic_recalc (EV_P_ ev_periodic *w) 3575periodic_recalc (EV_P_ ev_periodic *w)
2758{ 3576{
2759 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3577 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2760 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3578 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2761 3579
… …
2763 while (at <= ev_rt_now) 3581 while (at <= ev_rt_now)
2764 { 3582 {
2765 ev_tstamp nat = at + w->interval; 3583 ev_tstamp nat = at + w->interval;
2766 3584
2767 /* when resolution fails us, we use ev_rt_now */ 3585 /* when resolution fails us, we use ev_rt_now */
2768 if (expect_false (nat == at)) 3586 if (ecb_expect_false (nat == at))
2769 { 3587 {
2770 at = ev_rt_now; 3588 at = ev_rt_now;
2771 break; 3589 break;
2772 } 3590 }
2773 3591
… …
2783{ 3601{
2784 EV_FREQUENT_CHECK; 3602 EV_FREQUENT_CHECK;
2785 3603
2786 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3604 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2787 { 3605 {
2788 int feed_count = 0;
2789
2790 do 3606 do
2791 { 3607 {
2792 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3608 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2793 3609
2794 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3610 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2821 } 3637 }
2822} 3638}
2823 3639
2824/* simply recalculate all periodics */ 3640/* simply recalculate all periodics */
2825/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3641/* TODO: maybe ensure that at least one event happens when jumping forward? */
2826static void noinline ecb_cold 3642ecb_noinline ecb_cold
3643static void
2827periodics_reschedule (EV_P) 3644periodics_reschedule (EV_P)
2828{ 3645{
2829 int i; 3646 int i;
2830 3647
2831 /* adjust periodics after time jump */ 3648 /* adjust periodics after time jump */
… …
2844 reheap (periodics, periodiccnt); 3661 reheap (periodics, periodiccnt);
2845} 3662}
2846#endif 3663#endif
2847 3664
2848/* adjust all timers by a given offset */ 3665/* adjust all timers by a given offset */
2849static void noinline ecb_cold 3666ecb_noinline ecb_cold
3667static void
2850timers_reschedule (EV_P_ ev_tstamp adjust) 3668timers_reschedule (EV_P_ ev_tstamp adjust)
2851{ 3669{
2852 int i; 3670 int i;
2853 3671
2854 for (i = 0; i < timercnt; ++i) 3672 for (i = 0; i < timercnt; ++i)
… …
2863/* also detect if there was a timejump, and act accordingly */ 3681/* also detect if there was a timejump, and act accordingly */
2864inline_speed void 3682inline_speed void
2865time_update (EV_P_ ev_tstamp max_block) 3683time_update (EV_P_ ev_tstamp max_block)
2866{ 3684{
2867#if EV_USE_MONOTONIC 3685#if EV_USE_MONOTONIC
2868 if (expect_true (have_monotonic)) 3686 if (ecb_expect_true (have_monotonic))
2869 { 3687 {
2870 int i; 3688 int i;
2871 ev_tstamp odiff = rtmn_diff; 3689 ev_tstamp odiff = rtmn_diff;
2872 3690
2873 mn_now = get_clock (); 3691 mn_now = get_clock ();
2874 3692
2875 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3693 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
2876 /* interpolate in the meantime */ 3694 /* interpolate in the meantime */
2877 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3695 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
2878 { 3696 {
2879 ev_rt_now = rtmn_diff + mn_now; 3697 ev_rt_now = rtmn_diff + mn_now;
2880 return; 3698 return;
2881 } 3699 }
2882 3700
… …
2896 ev_tstamp diff; 3714 ev_tstamp diff;
2897 rtmn_diff = ev_rt_now - mn_now; 3715 rtmn_diff = ev_rt_now - mn_now;
2898 3716
2899 diff = odiff - rtmn_diff; 3717 diff = odiff - rtmn_diff;
2900 3718
2901 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3719 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
2902 return; /* all is well */ 3720 return; /* all is well */
2903 3721
2904 ev_rt_now = ev_time (); 3722 ev_rt_now = ev_time ();
2905 mn_now = get_clock (); 3723 mn_now = get_clock ();
2906 now_floor = mn_now; 3724 now_floor = mn_now;
… …
2915 else 3733 else
2916#endif 3734#endif
2917 { 3735 {
2918 ev_rt_now = ev_time (); 3736 ev_rt_now = ev_time ();
2919 3737
2920 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3738 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
2921 { 3739 {
2922 /* adjust timers. this is easy, as the offset is the same for all of them */ 3740 /* adjust timers. this is easy, as the offset is the same for all of them */
2923 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3741 timers_reschedule (EV_A_ ev_rt_now - mn_now);
2924#if EV_PERIODIC_ENABLE 3742#if EV_PERIODIC_ENABLE
2925 periodics_reschedule (EV_A); 3743 periodics_reschedule (EV_A);
… …
2928 3746
2929 mn_now = ev_rt_now; 3747 mn_now = ev_rt_now;
2930 } 3748 }
2931} 3749}
2932 3750
2933void 3751int
2934ev_run (EV_P_ int flags) 3752ev_run (EV_P_ int flags)
2935{ 3753{
2936#if EV_FEATURE_API 3754#if EV_FEATURE_API
2937 ++loop_depth; 3755 ++loop_depth;
2938#endif 3756#endif
… …
2948#if EV_VERIFY >= 2 3766#if EV_VERIFY >= 2
2949 ev_verify (EV_A); 3767 ev_verify (EV_A);
2950#endif 3768#endif
2951 3769
2952#ifndef _WIN32 3770#ifndef _WIN32
2953 if (expect_false (curpid)) /* penalise the forking check even more */ 3771 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
2954 if (expect_false (getpid () != curpid)) 3772 if (ecb_expect_false (getpid () != curpid))
2955 { 3773 {
2956 curpid = getpid (); 3774 curpid = getpid ();
2957 postfork = 1; 3775 postfork = 1;
2958 } 3776 }
2959#endif 3777#endif
2960 3778
2961#if EV_FORK_ENABLE 3779#if EV_FORK_ENABLE
2962 /* we might have forked, so queue fork handlers */ 3780 /* we might have forked, so queue fork handlers */
2963 if (expect_false (postfork)) 3781 if (ecb_expect_false (postfork))
2964 if (forkcnt) 3782 if (forkcnt)
2965 { 3783 {
2966 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3784 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2967 EV_INVOKE_PENDING; 3785 EV_INVOKE_PENDING;
2968 } 3786 }
2969#endif 3787#endif
2970 3788
2971#if EV_PREPARE_ENABLE 3789#if EV_PREPARE_ENABLE
2972 /* queue prepare watchers (and execute them) */ 3790 /* queue prepare watchers (and execute them) */
2973 if (expect_false (preparecnt)) 3791 if (ecb_expect_false (preparecnt))
2974 { 3792 {
2975 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3793 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2976 EV_INVOKE_PENDING; 3794 EV_INVOKE_PENDING;
2977 } 3795 }
2978#endif 3796#endif
2979 3797
2980 if (expect_false (loop_done)) 3798 if (ecb_expect_false (loop_done))
2981 break; 3799 break;
2982 3800
2983 /* we might have forked, so reify kernel state if necessary */ 3801 /* we might have forked, so reify kernel state if necessary */
2984 if (expect_false (postfork)) 3802 if (ecb_expect_false (postfork))
2985 loop_fork (EV_A); 3803 loop_fork (EV_A);
2986 3804
2987 /* update fd-related kernel structures */ 3805 /* update fd-related kernel structures */
2988 fd_reify (EV_A); 3806 fd_reify (EV_A);
2989 3807
… …
2994 3812
2995 /* remember old timestamp for io_blocktime calculation */ 3813 /* remember old timestamp for io_blocktime calculation */
2996 ev_tstamp prev_mn_now = mn_now; 3814 ev_tstamp prev_mn_now = mn_now;
2997 3815
2998 /* update time to cancel out callback processing overhead */ 3816 /* update time to cancel out callback processing overhead */
2999 time_update (EV_A_ 1e100); 3817 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3000 3818
3001 /* from now on, we want a pipe-wake-up */ 3819 /* from now on, we want a pipe-wake-up */
3002 pipe_write_wanted = 1; 3820 pipe_write_wanted = 1;
3003 3821
3004 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3822 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3005 3823
3006 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3824 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3007 { 3825 {
3008 waittime = MAX_BLOCKTIME; 3826 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3009 3827
3010 if (timercnt) 3828 if (timercnt)
3011 { 3829 {
3012 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3830 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3013 if (waittime > to) waittime = to; 3831 if (waittime > to) waittime = to;
… …
3020 if (waittime > to) waittime = to; 3838 if (waittime > to) waittime = to;
3021 } 3839 }
3022#endif 3840#endif
3023 3841
3024 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3842 /* don't let timeouts decrease the waittime below timeout_blocktime */
3025 if (expect_false (waittime < timeout_blocktime)) 3843 if (ecb_expect_false (waittime < timeout_blocktime))
3026 waittime = timeout_blocktime; 3844 waittime = timeout_blocktime;
3027 3845
3028 /* at this point, we NEED to wait, so we have to ensure */ 3846 /* at this point, we NEED to wait, so we have to ensure */
3029 /* to pass a minimum nonzero value to the backend */ 3847 /* to pass a minimum nonzero value to the backend */
3030 if (expect_false (waittime < backend_mintime)) 3848 if (ecb_expect_false (waittime < backend_mintime))
3031 waittime = backend_mintime; 3849 waittime = backend_mintime;
3032 3850
3033 /* extra check because io_blocktime is commonly 0 */ 3851 /* extra check because io_blocktime is commonly 0 */
3034 if (expect_false (io_blocktime)) 3852 if (ecb_expect_false (io_blocktime))
3035 { 3853 {
3036 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3854 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3037 3855
3038 if (sleeptime > waittime - backend_mintime) 3856 if (sleeptime > waittime - backend_mintime)
3039 sleeptime = waittime - backend_mintime; 3857 sleeptime = waittime - backend_mintime;
3040 3858
3041 if (expect_true (sleeptime > 0.)) 3859 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3042 { 3860 {
3043 ev_sleep (sleeptime); 3861 ev_sleep (sleeptime);
3044 waittime -= sleeptime; 3862 waittime -= sleeptime;
3045 } 3863 }
3046 } 3864 }
… …
3053 backend_poll (EV_A_ waittime); 3871 backend_poll (EV_A_ waittime);
3054 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3872 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3055 3873
3056 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3874 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3057 3875
3876 ECB_MEMORY_FENCE_ACQUIRE;
3058 if (pipe_write_skipped) 3877 if (pipe_write_skipped)
3059 { 3878 {
3060 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3879 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3061 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3880 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3062 } 3881 }
3063 3882
3064
3065 /* update ev_rt_now, do magic */ 3883 /* update ev_rt_now, do magic */
3066 time_update (EV_A_ waittime + sleeptime); 3884 time_update (EV_A_ waittime + sleeptime);
3067 } 3885 }
3068 3886
3069 /* queue pending timers and reschedule them */ 3887 /* queue pending timers and reschedule them */
… …
3077 idle_reify (EV_A); 3895 idle_reify (EV_A);
3078#endif 3896#endif
3079 3897
3080#if EV_CHECK_ENABLE 3898#if EV_CHECK_ENABLE
3081 /* queue check watchers, to be executed first */ 3899 /* queue check watchers, to be executed first */
3082 if (expect_false (checkcnt)) 3900 if (ecb_expect_false (checkcnt))
3083 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3901 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3084#endif 3902#endif
3085 3903
3086 EV_INVOKE_PENDING; 3904 EV_INVOKE_PENDING;
3087 } 3905 }
3088 while (expect_true ( 3906 while (ecb_expect_true (
3089 activecnt 3907 activecnt
3090 && !loop_done 3908 && !loop_done
3091 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3909 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3092 )); 3910 ));
3093 3911
… …
3095 loop_done = EVBREAK_CANCEL; 3913 loop_done = EVBREAK_CANCEL;
3096 3914
3097#if EV_FEATURE_API 3915#if EV_FEATURE_API
3098 --loop_depth; 3916 --loop_depth;
3099#endif 3917#endif
3100}
3101 3918
3919 return activecnt;
3920}
3921
3102void 3922void
3103ev_break (EV_P_ int how) 3923ev_break (EV_P_ int how) EV_NOEXCEPT
3104{ 3924{
3105 loop_done = how; 3925 loop_done = how;
3106} 3926}
3107 3927
3108void 3928void
3109ev_ref (EV_P) 3929ev_ref (EV_P) EV_NOEXCEPT
3110{ 3930{
3111 ++activecnt; 3931 ++activecnt;
3112} 3932}
3113 3933
3114void 3934void
3115ev_unref (EV_P) 3935ev_unref (EV_P) EV_NOEXCEPT
3116{ 3936{
3117 --activecnt; 3937 --activecnt;
3118} 3938}
3119 3939
3120void 3940void
3121ev_now_update (EV_P) 3941ev_now_update (EV_P) EV_NOEXCEPT
3122{ 3942{
3123 time_update (EV_A_ 1e100); 3943 time_update (EV_A_ EV_TSTAMP_HUGE);
3124} 3944}
3125 3945
3126void 3946void
3127ev_suspend (EV_P) 3947ev_suspend (EV_P) EV_NOEXCEPT
3128{ 3948{
3129 ev_now_update (EV_A); 3949 ev_now_update (EV_A);
3130} 3950}
3131 3951
3132void 3952void
3133ev_resume (EV_P) 3953ev_resume (EV_P) EV_NOEXCEPT
3134{ 3954{
3135 ev_tstamp mn_prev = mn_now; 3955 ev_tstamp mn_prev = mn_now;
3136 3956
3137 ev_now_update (EV_A); 3957 ev_now_update (EV_A);
3138 timers_reschedule (EV_A_ mn_now - mn_prev); 3958 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3155inline_size void 3975inline_size void
3156wlist_del (WL *head, WL elem) 3976wlist_del (WL *head, WL elem)
3157{ 3977{
3158 while (*head) 3978 while (*head)
3159 { 3979 {
3160 if (expect_true (*head == elem)) 3980 if (ecb_expect_true (*head == elem))
3161 { 3981 {
3162 *head = elem->next; 3982 *head = elem->next;
3163 break; 3983 break;
3164 } 3984 }
3165 3985
… …
3177 w->pending = 0; 3997 w->pending = 0;
3178 } 3998 }
3179} 3999}
3180 4000
3181int 4001int
3182ev_clear_pending (EV_P_ void *w) 4002ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3183{ 4003{
3184 W w_ = (W)w; 4004 W w_ = (W)w;
3185 int pending = w_->pending; 4005 int pending = w_->pending;
3186 4006
3187 if (expect_true (pending)) 4007 if (ecb_expect_true (pending))
3188 { 4008 {
3189 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4009 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3190 p->w = (W)&pending_w; 4010 p->w = (W)&pending_w;
3191 w_->pending = 0; 4011 w_->pending = 0;
3192 return p->events; 4012 return p->events;
… …
3219 w->active = 0; 4039 w->active = 0;
3220} 4040}
3221 4041
3222/*****************************************************************************/ 4042/*****************************************************************************/
3223 4043
3224void noinline 4044ecb_noinline
4045void
3225ev_io_start (EV_P_ ev_io *w) 4046ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3226{ 4047{
3227 int fd = w->fd; 4048 int fd = w->fd;
3228 4049
3229 if (expect_false (ev_is_active (w))) 4050 if (ecb_expect_false (ev_is_active (w)))
3230 return; 4051 return;
3231 4052
3232 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4053 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3233 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4054 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3234 4055
4056#if EV_VERIFY >= 2
4057 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4058#endif
3235 EV_FREQUENT_CHECK; 4059 EV_FREQUENT_CHECK;
3236 4060
3237 ev_start (EV_A_ (W)w, 1); 4061 ev_start (EV_A_ (W)w, 1);
3238 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4062 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3239 wlist_add (&anfds[fd].head, (WL)w); 4063 wlist_add (&anfds[fd].head, (WL)w);
4064
4065 /* common bug, apparently */
4066 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3240 4067
3241 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 4068 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3242 w->events &= ~EV__IOFDSET; 4069 w->events &= ~EV__IOFDSET;
3243 4070
3244 EV_FREQUENT_CHECK; 4071 EV_FREQUENT_CHECK;
3245} 4072}
3246 4073
3247void noinline 4074ecb_noinline
4075void
3248ev_io_stop (EV_P_ ev_io *w) 4076ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3249{ 4077{
3250 clear_pending (EV_A_ (W)w); 4078 clear_pending (EV_A_ (W)w);
3251 if (expect_false (!ev_is_active (w))) 4079 if (ecb_expect_false (!ev_is_active (w)))
3252 return; 4080 return;
3253 4081
3254 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4082 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3255 4083
4084#if EV_VERIFY >= 2
4085 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4086#endif
3256 EV_FREQUENT_CHECK; 4087 EV_FREQUENT_CHECK;
3257 4088
3258 wlist_del (&anfds[w->fd].head, (WL)w); 4089 wlist_del (&anfds[w->fd].head, (WL)w);
3259 ev_stop (EV_A_ (W)w); 4090 ev_stop (EV_A_ (W)w);
3260 4091
3261 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4092 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3262 4093
3263 EV_FREQUENT_CHECK; 4094 EV_FREQUENT_CHECK;
3264} 4095}
3265 4096
3266void noinline 4097ecb_noinline
4098void
3267ev_timer_start (EV_P_ ev_timer *w) 4099ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3268{ 4100{
3269 if (expect_false (ev_is_active (w))) 4101 if (ecb_expect_false (ev_is_active (w)))
3270 return; 4102 return;
3271 4103
3272 ev_at (w) += mn_now; 4104 ev_at (w) += mn_now;
3273 4105
3274 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4106 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3275 4107
3276 EV_FREQUENT_CHECK; 4108 EV_FREQUENT_CHECK;
3277 4109
3278 ++timercnt; 4110 ++timercnt;
3279 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4111 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3280 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4112 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3281 ANHE_w (timers [ev_active (w)]) = (WT)w; 4113 ANHE_w (timers [ev_active (w)]) = (WT)w;
3282 ANHE_at_cache (timers [ev_active (w)]); 4114 ANHE_at_cache (timers [ev_active (w)]);
3283 upheap (timers, ev_active (w)); 4115 upheap (timers, ev_active (w));
3284 4116
3285 EV_FREQUENT_CHECK; 4117 EV_FREQUENT_CHECK;
3286 4118
3287 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4119 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3288} 4120}
3289 4121
3290void noinline 4122ecb_noinline
4123void
3291ev_timer_stop (EV_P_ ev_timer *w) 4124ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3292{ 4125{
3293 clear_pending (EV_A_ (W)w); 4126 clear_pending (EV_A_ (W)w);
3294 if (expect_false (!ev_is_active (w))) 4127 if (ecb_expect_false (!ev_is_active (w)))
3295 return; 4128 return;
3296 4129
3297 EV_FREQUENT_CHECK; 4130 EV_FREQUENT_CHECK;
3298 4131
3299 { 4132 {
… …
3301 4134
3302 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4135 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3303 4136
3304 --timercnt; 4137 --timercnt;
3305 4138
3306 if (expect_true (active < timercnt + HEAP0)) 4139 if (ecb_expect_true (active < timercnt + HEAP0))
3307 { 4140 {
3308 timers [active] = timers [timercnt + HEAP0]; 4141 timers [active] = timers [timercnt + HEAP0];
3309 adjustheap (timers, timercnt, active); 4142 adjustheap (timers, timercnt, active);
3310 } 4143 }
3311 } 4144 }
… …
3315 ev_stop (EV_A_ (W)w); 4148 ev_stop (EV_A_ (W)w);
3316 4149
3317 EV_FREQUENT_CHECK; 4150 EV_FREQUENT_CHECK;
3318} 4151}
3319 4152
3320void noinline 4153ecb_noinline
4154void
3321ev_timer_again (EV_P_ ev_timer *w) 4155ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3322{ 4156{
3323 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3324 4158
3325 clear_pending (EV_A_ (W)w); 4159 clear_pending (EV_A_ (W)w);
3326 4160
… …
3343 4177
3344 EV_FREQUENT_CHECK; 4178 EV_FREQUENT_CHECK;
3345} 4179}
3346 4180
3347ev_tstamp 4181ev_tstamp
3348ev_timer_remaining (EV_P_ ev_timer *w) 4182ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3349{ 4183{
3350 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4184 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3351} 4185}
3352 4186
3353#if EV_PERIODIC_ENABLE 4187#if EV_PERIODIC_ENABLE
3354void noinline 4188ecb_noinline
4189void
3355ev_periodic_start (EV_P_ ev_periodic *w) 4190ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3356{ 4191{
3357 if (expect_false (ev_is_active (w))) 4192 if (ecb_expect_false (ev_is_active (w)))
3358 return; 4193 return;
3359 4194
3360 if (w->reschedule_cb) 4195 if (w->reschedule_cb)
3361 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4196 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3362 else if (w->interval) 4197 else if (w->interval)
… …
3369 4204
3370 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
3371 4206
3372 ++periodiccnt; 4207 ++periodiccnt;
3373 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4208 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3374 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4209 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3375 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4210 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3376 ANHE_at_cache (periodics [ev_active (w)]); 4211 ANHE_at_cache (periodics [ev_active (w)]);
3377 upheap (periodics, ev_active (w)); 4212 upheap (periodics, ev_active (w));
3378 4213
3379 EV_FREQUENT_CHECK; 4214 EV_FREQUENT_CHECK;
3380 4215
3381 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4216 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3382} 4217}
3383 4218
3384void noinline 4219ecb_noinline
4220void
3385ev_periodic_stop (EV_P_ ev_periodic *w) 4221ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3386{ 4222{
3387 clear_pending (EV_A_ (W)w); 4223 clear_pending (EV_A_ (W)w);
3388 if (expect_false (!ev_is_active (w))) 4224 if (ecb_expect_false (!ev_is_active (w)))
3389 return; 4225 return;
3390 4226
3391 EV_FREQUENT_CHECK; 4227 EV_FREQUENT_CHECK;
3392 4228
3393 { 4229 {
… …
3395 4231
3396 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4232 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3397 4233
3398 --periodiccnt; 4234 --periodiccnt;
3399 4235
3400 if (expect_true (active < periodiccnt + HEAP0)) 4236 if (ecb_expect_true (active < periodiccnt + HEAP0))
3401 { 4237 {
3402 periodics [active] = periodics [periodiccnt + HEAP0]; 4238 periodics [active] = periodics [periodiccnt + HEAP0];
3403 adjustheap (periodics, periodiccnt, active); 4239 adjustheap (periodics, periodiccnt, active);
3404 } 4240 }
3405 } 4241 }
… …
3407 ev_stop (EV_A_ (W)w); 4243 ev_stop (EV_A_ (W)w);
3408 4244
3409 EV_FREQUENT_CHECK; 4245 EV_FREQUENT_CHECK;
3410} 4246}
3411 4247
3412void noinline 4248ecb_noinline
4249void
3413ev_periodic_again (EV_P_ ev_periodic *w) 4250ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3414{ 4251{
3415 /* TODO: use adjustheap and recalculation */ 4252 /* TODO: use adjustheap and recalculation */
3416 ev_periodic_stop (EV_A_ w); 4253 ev_periodic_stop (EV_A_ w);
3417 ev_periodic_start (EV_A_ w); 4254 ev_periodic_start (EV_A_ w);
3418} 4255}
… …
3422# define SA_RESTART 0 4259# define SA_RESTART 0
3423#endif 4260#endif
3424 4261
3425#if EV_SIGNAL_ENABLE 4262#if EV_SIGNAL_ENABLE
3426 4263
3427void noinline 4264ecb_noinline
4265void
3428ev_signal_start (EV_P_ ev_signal *w) 4266ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3429{ 4267{
3430 if (expect_false (ev_is_active (w))) 4268 if (ecb_expect_false (ev_is_active (w)))
3431 return; 4269 return;
3432 4270
3433 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4271 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3434 4272
3435#if EV_MULTIPLICITY 4273#if EV_MULTIPLICITY
3436 assert (("libev: a signal must not be attached to two different loops", 4274 assert (("libev: a signal must not be attached to two different loops",
3437 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4275 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3438 4276
3439 signals [w->signum - 1].loop = EV_A; 4277 signals [w->signum - 1].loop = EV_A;
4278 ECB_MEMORY_FENCE_RELEASE;
3440#endif 4279#endif
3441 4280
3442 EV_FREQUENT_CHECK; 4281 EV_FREQUENT_CHECK;
3443 4282
3444#if EV_USE_SIGNALFD 4283#if EV_USE_SIGNALFD
… …
3503 } 4342 }
3504 4343
3505 EV_FREQUENT_CHECK; 4344 EV_FREQUENT_CHECK;
3506} 4345}
3507 4346
3508void noinline 4347ecb_noinline
4348void
3509ev_signal_stop (EV_P_ ev_signal *w) 4349ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3510{ 4350{
3511 clear_pending (EV_A_ (W)w); 4351 clear_pending (EV_A_ (W)w);
3512 if (expect_false (!ev_is_active (w))) 4352 if (ecb_expect_false (!ev_is_active (w)))
3513 return; 4353 return;
3514 4354
3515 EV_FREQUENT_CHECK; 4355 EV_FREQUENT_CHECK;
3516 4356
3517 wlist_del (&signals [w->signum - 1].head, (WL)w); 4357 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3545#endif 4385#endif
3546 4386
3547#if EV_CHILD_ENABLE 4387#if EV_CHILD_ENABLE
3548 4388
3549void 4389void
3550ev_child_start (EV_P_ ev_child *w) 4390ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3551{ 4391{
3552#if EV_MULTIPLICITY 4392#if EV_MULTIPLICITY
3553 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4393 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3554#endif 4394#endif
3555 if (expect_false (ev_is_active (w))) 4395 if (ecb_expect_false (ev_is_active (w)))
3556 return; 4396 return;
3557 4397
3558 EV_FREQUENT_CHECK; 4398 EV_FREQUENT_CHECK;
3559 4399
3560 ev_start (EV_A_ (W)w, 1); 4400 ev_start (EV_A_ (W)w, 1);
… …
3562 4402
3563 EV_FREQUENT_CHECK; 4403 EV_FREQUENT_CHECK;
3564} 4404}
3565 4405
3566void 4406void
3567ev_child_stop (EV_P_ ev_child *w) 4407ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3568{ 4408{
3569 clear_pending (EV_A_ (W)w); 4409 clear_pending (EV_A_ (W)w);
3570 if (expect_false (!ev_is_active (w))) 4410 if (ecb_expect_false (!ev_is_active (w)))
3571 return; 4411 return;
3572 4412
3573 EV_FREQUENT_CHECK; 4413 EV_FREQUENT_CHECK;
3574 4414
3575 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4415 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3589 4429
3590#define DEF_STAT_INTERVAL 5.0074891 4430#define DEF_STAT_INTERVAL 5.0074891
3591#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4431#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3592#define MIN_STAT_INTERVAL 0.1074891 4432#define MIN_STAT_INTERVAL 0.1074891
3593 4433
3594static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4434ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3595 4435
3596#if EV_USE_INOTIFY 4436#if EV_USE_INOTIFY
3597 4437
3598/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4438/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3599# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4439# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3600 4440
3601static void noinline 4441ecb_noinline
4442static void
3602infy_add (EV_P_ ev_stat *w) 4443infy_add (EV_P_ ev_stat *w)
3603{ 4444{
3604 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); 4445 w->wd = inotify_add_watch (fs_fd, w->path,
4446 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4447 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4448 | IN_DONT_FOLLOW | IN_MASK_ADD);
3605 4449
3606 if (w->wd >= 0) 4450 if (w->wd >= 0)
3607 { 4451 {
3608 struct statfs sfs; 4452 struct statfs sfs;
3609 4453
… …
3613 4457
3614 if (!fs_2625) 4458 if (!fs_2625)
3615 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4459 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3616 else if (!statfs (w->path, &sfs) 4460 else if (!statfs (w->path, &sfs)
3617 && (sfs.f_type == 0x1373 /* devfs */ 4461 && (sfs.f_type == 0x1373 /* devfs */
4462 || sfs.f_type == 0x4006 /* fat */
4463 || sfs.f_type == 0x4d44 /* msdos */
3618 || sfs.f_type == 0xEF53 /* ext2/3 */ 4464 || sfs.f_type == 0xEF53 /* ext2/3 */
4465 || sfs.f_type == 0x72b6 /* jffs2 */
4466 || sfs.f_type == 0x858458f6 /* ramfs */
4467 || sfs.f_type == 0x5346544e /* ntfs */
3619 || sfs.f_type == 0x3153464a /* jfs */ 4468 || sfs.f_type == 0x3153464a /* jfs */
4469 || sfs.f_type == 0x9123683e /* btrfs */
3620 || sfs.f_type == 0x52654973 /* reiser3 */ 4470 || sfs.f_type == 0x52654973 /* reiser3 */
3621 || sfs.f_type == 0x01021994 /* tempfs */ 4471 || sfs.f_type == 0x01021994 /* tmpfs */
3622 || sfs.f_type == 0x58465342 /* xfs */)) 4472 || sfs.f_type == 0x58465342 /* xfs */))
3623 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4473 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3624 else 4474 else
3625 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4475 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3626 } 4476 }
… …
3661 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4511 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3662 ev_timer_again (EV_A_ &w->timer); 4512 ev_timer_again (EV_A_ &w->timer);
3663 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4513 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3664} 4514}
3665 4515
3666static void noinline 4516ecb_noinline
4517static void
3667infy_del (EV_P_ ev_stat *w) 4518infy_del (EV_P_ ev_stat *w)
3668{ 4519{
3669 int slot; 4520 int slot;
3670 int wd = w->wd; 4521 int wd = w->wd;
3671 4522
… …
3678 4529
3679 /* remove this watcher, if others are watching it, they will rearm */ 4530 /* remove this watcher, if others are watching it, they will rearm */
3680 inotify_rm_watch (fs_fd, wd); 4531 inotify_rm_watch (fs_fd, wd);
3681} 4532}
3682 4533
3683static void noinline 4534ecb_noinline
4535static void
3684infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4536infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3685{ 4537{
3686 if (slot < 0) 4538 if (slot < 0)
3687 /* overflow, need to check for all hash slots */ 4539 /* overflow, need to check for all hash slots */
3688 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4540 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3724 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4576 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3725 ofs += sizeof (struct inotify_event) + ev->len; 4577 ofs += sizeof (struct inotify_event) + ev->len;
3726 } 4578 }
3727} 4579}
3728 4580
3729inline_size void ecb_cold 4581inline_size ecb_cold
4582void
3730ev_check_2625 (EV_P) 4583ev_check_2625 (EV_P)
3731{ 4584{
3732 /* kernels < 2.6.25 are borked 4585 /* kernels < 2.6.25 are borked
3733 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4586 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3734 */ 4587 */
… …
3739} 4592}
3740 4593
3741inline_size int 4594inline_size int
3742infy_newfd (void) 4595infy_newfd (void)
3743{ 4596{
3744#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4597#if defined IN_CLOEXEC && defined IN_NONBLOCK
3745 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4598 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3746 if (fd >= 0) 4599 if (fd >= 0)
3747 return fd; 4600 return fd;
3748#endif 4601#endif
3749 return inotify_init (); 4602 return inotify_init ();
… …
3824#else 4677#else
3825# define EV_LSTAT(p,b) lstat (p, b) 4678# define EV_LSTAT(p,b) lstat (p, b)
3826#endif 4679#endif
3827 4680
3828void 4681void
3829ev_stat_stat (EV_P_ ev_stat *w) 4682ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3830{ 4683{
3831 if (lstat (w->path, &w->attr) < 0) 4684 if (lstat (w->path, &w->attr) < 0)
3832 w->attr.st_nlink = 0; 4685 w->attr.st_nlink = 0;
3833 else if (!w->attr.st_nlink) 4686 else if (!w->attr.st_nlink)
3834 w->attr.st_nlink = 1; 4687 w->attr.st_nlink = 1;
3835} 4688}
3836 4689
3837static void noinline 4690ecb_noinline
4691static void
3838stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4692stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3839{ 4693{
3840 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4694 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3841 4695
3842 ev_statdata prev = w->attr; 4696 ev_statdata prev = w->attr;
… …
3873 ev_feed_event (EV_A_ w, EV_STAT); 4727 ev_feed_event (EV_A_ w, EV_STAT);
3874 } 4728 }
3875} 4729}
3876 4730
3877void 4731void
3878ev_stat_start (EV_P_ ev_stat *w) 4732ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3879{ 4733{
3880 if (expect_false (ev_is_active (w))) 4734 if (ecb_expect_false (ev_is_active (w)))
3881 return; 4735 return;
3882 4736
3883 ev_stat_stat (EV_A_ w); 4737 ev_stat_stat (EV_A_ w);
3884 4738
3885 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4739 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
3904 4758
3905 EV_FREQUENT_CHECK; 4759 EV_FREQUENT_CHECK;
3906} 4760}
3907 4761
3908void 4762void
3909ev_stat_stop (EV_P_ ev_stat *w) 4763ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
3910{ 4764{
3911 clear_pending (EV_A_ (W)w); 4765 clear_pending (EV_A_ (W)w);
3912 if (expect_false (!ev_is_active (w))) 4766 if (ecb_expect_false (!ev_is_active (w)))
3913 return; 4767 return;
3914 4768
3915 EV_FREQUENT_CHECK; 4769 EV_FREQUENT_CHECK;
3916 4770
3917#if EV_USE_INOTIFY 4771#if EV_USE_INOTIFY
… …
3930} 4784}
3931#endif 4785#endif
3932 4786
3933#if EV_IDLE_ENABLE 4787#if EV_IDLE_ENABLE
3934void 4788void
3935ev_idle_start (EV_P_ ev_idle *w) 4789ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
3936{ 4790{
3937 if (expect_false (ev_is_active (w))) 4791 if (ecb_expect_false (ev_is_active (w)))
3938 return; 4792 return;
3939 4793
3940 pri_adjust (EV_A_ (W)w); 4794 pri_adjust (EV_A_ (W)w);
3941 4795
3942 EV_FREQUENT_CHECK; 4796 EV_FREQUENT_CHECK;
… …
3945 int active = ++idlecnt [ABSPRI (w)]; 4799 int active = ++idlecnt [ABSPRI (w)];
3946 4800
3947 ++idleall; 4801 ++idleall;
3948 ev_start (EV_A_ (W)w, active); 4802 ev_start (EV_A_ (W)w, active);
3949 4803
3950 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4804 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
3951 idles [ABSPRI (w)][active - 1] = w; 4805 idles [ABSPRI (w)][active - 1] = w;
3952 } 4806 }
3953 4807
3954 EV_FREQUENT_CHECK; 4808 EV_FREQUENT_CHECK;
3955} 4809}
3956 4810
3957void 4811void
3958ev_idle_stop (EV_P_ ev_idle *w) 4812ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
3959{ 4813{
3960 clear_pending (EV_A_ (W)w); 4814 clear_pending (EV_A_ (W)w);
3961 if (expect_false (!ev_is_active (w))) 4815 if (ecb_expect_false (!ev_is_active (w)))
3962 return; 4816 return;
3963 4817
3964 EV_FREQUENT_CHECK; 4818 EV_FREQUENT_CHECK;
3965 4819
3966 { 4820 {
… …
3977} 4831}
3978#endif 4832#endif
3979 4833
3980#if EV_PREPARE_ENABLE 4834#if EV_PREPARE_ENABLE
3981void 4835void
3982ev_prepare_start (EV_P_ ev_prepare *w) 4836ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
3983{ 4837{
3984 if (expect_false (ev_is_active (w))) 4838 if (ecb_expect_false (ev_is_active (w)))
3985 return; 4839 return;
3986 4840
3987 EV_FREQUENT_CHECK; 4841 EV_FREQUENT_CHECK;
3988 4842
3989 ev_start (EV_A_ (W)w, ++preparecnt); 4843 ev_start (EV_A_ (W)w, ++preparecnt);
3990 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4844 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
3991 prepares [preparecnt - 1] = w; 4845 prepares [preparecnt - 1] = w;
3992 4846
3993 EV_FREQUENT_CHECK; 4847 EV_FREQUENT_CHECK;
3994} 4848}
3995 4849
3996void 4850void
3997ev_prepare_stop (EV_P_ ev_prepare *w) 4851ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
3998{ 4852{
3999 clear_pending (EV_A_ (W)w); 4853 clear_pending (EV_A_ (W)w);
4000 if (expect_false (!ev_is_active (w))) 4854 if (ecb_expect_false (!ev_is_active (w)))
4001 return; 4855 return;
4002 4856
4003 EV_FREQUENT_CHECK; 4857 EV_FREQUENT_CHECK;
4004 4858
4005 { 4859 {
… …
4015} 4869}
4016#endif 4870#endif
4017 4871
4018#if EV_CHECK_ENABLE 4872#if EV_CHECK_ENABLE
4019void 4873void
4020ev_check_start (EV_P_ ev_check *w) 4874ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4021{ 4875{
4022 if (expect_false (ev_is_active (w))) 4876 if (ecb_expect_false (ev_is_active (w)))
4023 return; 4877 return;
4024 4878
4025 EV_FREQUENT_CHECK; 4879 EV_FREQUENT_CHECK;
4026 4880
4027 ev_start (EV_A_ (W)w, ++checkcnt); 4881 ev_start (EV_A_ (W)w, ++checkcnt);
4028 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4882 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4029 checks [checkcnt - 1] = w; 4883 checks [checkcnt - 1] = w;
4030 4884
4031 EV_FREQUENT_CHECK; 4885 EV_FREQUENT_CHECK;
4032} 4886}
4033 4887
4034void 4888void
4035ev_check_stop (EV_P_ ev_check *w) 4889ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4036{ 4890{
4037 clear_pending (EV_A_ (W)w); 4891 clear_pending (EV_A_ (W)w);
4038 if (expect_false (!ev_is_active (w))) 4892 if (ecb_expect_false (!ev_is_active (w)))
4039 return; 4893 return;
4040 4894
4041 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
4042 4896
4043 { 4897 {
… …
4052 EV_FREQUENT_CHECK; 4906 EV_FREQUENT_CHECK;
4053} 4907}
4054#endif 4908#endif
4055 4909
4056#if EV_EMBED_ENABLE 4910#if EV_EMBED_ENABLE
4057void noinline 4911ecb_noinline
4912void
4058ev_embed_sweep (EV_P_ ev_embed *w) 4913ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4059{ 4914{
4060 ev_run (w->other, EVRUN_NOWAIT); 4915 ev_run (w->other, EVRUN_NOWAIT);
4061} 4916}
4062 4917
4063static void 4918static void
… …
4111 ev_idle_stop (EV_A_ idle); 4966 ev_idle_stop (EV_A_ idle);
4112} 4967}
4113#endif 4968#endif
4114 4969
4115void 4970void
4116ev_embed_start (EV_P_ ev_embed *w) 4971ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4117{ 4972{
4118 if (expect_false (ev_is_active (w))) 4973 if (ecb_expect_false (ev_is_active (w)))
4119 return; 4974 return;
4120 4975
4121 { 4976 {
4122 EV_P = w->other; 4977 EV_P = w->other;
4123 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4978 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4142 4997
4143 EV_FREQUENT_CHECK; 4998 EV_FREQUENT_CHECK;
4144} 4999}
4145 5000
4146void 5001void
4147ev_embed_stop (EV_P_ ev_embed *w) 5002ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4148{ 5003{
4149 clear_pending (EV_A_ (W)w); 5004 clear_pending (EV_A_ (W)w);
4150 if (expect_false (!ev_is_active (w))) 5005 if (ecb_expect_false (!ev_is_active (w)))
4151 return; 5006 return;
4152 5007
4153 EV_FREQUENT_CHECK; 5008 EV_FREQUENT_CHECK;
4154 5009
4155 ev_io_stop (EV_A_ &w->io); 5010 ev_io_stop (EV_A_ &w->io);
… …
4162} 5017}
4163#endif 5018#endif
4164 5019
4165#if EV_FORK_ENABLE 5020#if EV_FORK_ENABLE
4166void 5021void
4167ev_fork_start (EV_P_ ev_fork *w) 5022ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4168{ 5023{
4169 if (expect_false (ev_is_active (w))) 5024 if (ecb_expect_false (ev_is_active (w)))
4170 return; 5025 return;
4171 5026
4172 EV_FREQUENT_CHECK; 5027 EV_FREQUENT_CHECK;
4173 5028
4174 ev_start (EV_A_ (W)w, ++forkcnt); 5029 ev_start (EV_A_ (W)w, ++forkcnt);
4175 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5030 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4176 forks [forkcnt - 1] = w; 5031 forks [forkcnt - 1] = w;
4177 5032
4178 EV_FREQUENT_CHECK; 5033 EV_FREQUENT_CHECK;
4179} 5034}
4180 5035
4181void 5036void
4182ev_fork_stop (EV_P_ ev_fork *w) 5037ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4183{ 5038{
4184 clear_pending (EV_A_ (W)w); 5039 clear_pending (EV_A_ (W)w);
4185 if (expect_false (!ev_is_active (w))) 5040 if (ecb_expect_false (!ev_is_active (w)))
4186 return; 5041 return;
4187 5042
4188 EV_FREQUENT_CHECK; 5043 EV_FREQUENT_CHECK;
4189 5044
4190 { 5045 {
… …
4200} 5055}
4201#endif 5056#endif
4202 5057
4203#if EV_CLEANUP_ENABLE 5058#if EV_CLEANUP_ENABLE
4204void 5059void
4205ev_cleanup_start (EV_P_ ev_cleanup *w) 5060ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4206{ 5061{
4207 if (expect_false (ev_is_active (w))) 5062 if (ecb_expect_false (ev_is_active (w)))
4208 return; 5063 return;
4209 5064
4210 EV_FREQUENT_CHECK; 5065 EV_FREQUENT_CHECK;
4211 5066
4212 ev_start (EV_A_ (W)w, ++cleanupcnt); 5067 ev_start (EV_A_ (W)w, ++cleanupcnt);
4213 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5068 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4214 cleanups [cleanupcnt - 1] = w; 5069 cleanups [cleanupcnt - 1] = w;
4215 5070
4216 /* cleanup watchers should never keep a refcount on the loop */ 5071 /* cleanup watchers should never keep a refcount on the loop */
4217 ev_unref (EV_A); 5072 ev_unref (EV_A);
4218 EV_FREQUENT_CHECK; 5073 EV_FREQUENT_CHECK;
4219} 5074}
4220 5075
4221void 5076void
4222ev_cleanup_stop (EV_P_ ev_cleanup *w) 5077ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4223{ 5078{
4224 clear_pending (EV_A_ (W)w); 5079 clear_pending (EV_A_ (W)w);
4225 if (expect_false (!ev_is_active (w))) 5080 if (ecb_expect_false (!ev_is_active (w)))
4226 return; 5081 return;
4227 5082
4228 EV_FREQUENT_CHECK; 5083 EV_FREQUENT_CHECK;
4229 ev_ref (EV_A); 5084 ev_ref (EV_A);
4230 5085
… …
4241} 5096}
4242#endif 5097#endif
4243 5098
4244#if EV_ASYNC_ENABLE 5099#if EV_ASYNC_ENABLE
4245void 5100void
4246ev_async_start (EV_P_ ev_async *w) 5101ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4247{ 5102{
4248 if (expect_false (ev_is_active (w))) 5103 if (ecb_expect_false (ev_is_active (w)))
4249 return; 5104 return;
4250 5105
4251 w->sent = 0; 5106 w->sent = 0;
4252 5107
4253 evpipe_init (EV_A); 5108 evpipe_init (EV_A);
4254 5109
4255 EV_FREQUENT_CHECK; 5110 EV_FREQUENT_CHECK;
4256 5111
4257 ev_start (EV_A_ (W)w, ++asynccnt); 5112 ev_start (EV_A_ (W)w, ++asynccnt);
4258 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5113 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4259 asyncs [asynccnt - 1] = w; 5114 asyncs [asynccnt - 1] = w;
4260 5115
4261 EV_FREQUENT_CHECK; 5116 EV_FREQUENT_CHECK;
4262} 5117}
4263 5118
4264void 5119void
4265ev_async_stop (EV_P_ ev_async *w) 5120ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4266{ 5121{
4267 clear_pending (EV_A_ (W)w); 5122 clear_pending (EV_A_ (W)w);
4268 if (expect_false (!ev_is_active (w))) 5123 if (ecb_expect_false (!ev_is_active (w)))
4269 return; 5124 return;
4270 5125
4271 EV_FREQUENT_CHECK; 5126 EV_FREQUENT_CHECK;
4272 5127
4273 { 5128 {
… …
4281 5136
4282 EV_FREQUENT_CHECK; 5137 EV_FREQUENT_CHECK;
4283} 5138}
4284 5139
4285void 5140void
4286ev_async_send (EV_P_ ev_async *w) 5141ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4287{ 5142{
4288 w->sent = 1; 5143 w->sent = 1;
4289 evpipe_write (EV_A_ &async_pending); 5144 evpipe_write (EV_A_ &async_pending);
4290} 5145}
4291#endif 5146#endif
… …
4328 5183
4329 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5184 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4330} 5185}
4331 5186
4332void 5187void
4333ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 5188ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4334{ 5189{
4335 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5190 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4336
4337 if (expect_false (!once))
4338 {
4339 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4340 return;
4341 }
4342 5191
4343 once->cb = cb; 5192 once->cb = cb;
4344 once->arg = arg; 5193 once->arg = arg;
4345 5194
4346 ev_init (&once->io, once_cb_io); 5195 ev_init (&once->io, once_cb_io);
… …
4359} 5208}
4360 5209
4361/*****************************************************************************/ 5210/*****************************************************************************/
4362 5211
4363#if EV_WALK_ENABLE 5212#if EV_WALK_ENABLE
4364void ecb_cold 5213ecb_cold
5214void
4365ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 5215ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4366{ 5216{
4367 int i, j; 5217 int i, j;
4368 ev_watcher_list *wl, *wn; 5218 ev_watcher_list *wl, *wn;
4369 5219
4370 if (types & (EV_IO | EV_EMBED)) 5220 if (types & (EV_IO | EV_EMBED))

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