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Comparing libev/ev.c (file contents):
Revision 1.406 by root, Tue Jan 24 16:37:12 2012 UTC vs.
Revision 1.500 by root, Mon Jul 1 20:47:37 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 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
… …
183# include EV_H 202# include EV_H
184#else 203#else
185# include "ev.h" 204# include "ev.h"
186#endif 205#endif
187 206
207#if EV_NO_THREADS
208# undef EV_NO_SMP
209# define EV_NO_SMP 1
210# undef ECB_NO_THREADS
211# define ECB_NO_THREADS 1
212#endif
213#if EV_NO_SMP
214# undef EV_NO_SMP
215# define ECB_NO_SMP 1
216#endif
217
188#ifndef _WIN32 218#ifndef _WIN32
189# include <sys/time.h> 219# include <sys/time.h>
190# include <sys/wait.h> 220# include <sys/wait.h>
191# include <unistd.h> 221# include <unistd.h>
192#else 222#else
193# include <io.h> 223# include <io.h>
194# define WIN32_LEAN_AND_MEAN 224# define WIN32_LEAN_AND_MEAN
225# include <winsock2.h>
195# include <windows.h> 226# include <windows.h>
196# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
197# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
198# endif 229# endif
199# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
200#endif 231#endif
201 232
202/* OS X, in its infinite idiocy, actually HARDCODES
203 * a limit of 1024 into their select. Where people have brains,
204 * OS X engineers apparently have a vacuum. Or maybe they were
205 * ordered to have a vacuum, or they do anything for money.
206 * This might help. Or not.
207 */
208#define _DARWIN_UNLIMITED_SELECT 1
209
210/* 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 */
211 234
212/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
213#if defined (EV_NSIG) 236#if defined EV_NSIG
214/* use what's provided */ 237/* use what's provided */
215#elif defined (NSIG) 238#elif defined NSIG
216# define EV_NSIG (NSIG) 239# define EV_NSIG (NSIG)
217#elif defined(_NSIG) 240#elif defined _NSIG
218# define EV_NSIG (_NSIG) 241# define EV_NSIG (_NSIG)
219#elif defined (SIGMAX) 242#elif defined SIGMAX
220# define EV_NSIG (SIGMAX+1) 243# define EV_NSIG (SIGMAX+1)
221#elif defined (SIG_MAX) 244#elif defined SIG_MAX
222# define EV_NSIG (SIG_MAX+1) 245# define EV_NSIG (SIG_MAX+1)
223#elif defined (_SIG_MAX) 246#elif defined _SIG_MAX
224# define EV_NSIG (_SIG_MAX+1) 247# define EV_NSIG (_SIG_MAX+1)
225#elif defined (MAXSIG) 248#elif defined MAXSIG
226# define EV_NSIG (MAXSIG+1) 249# define EV_NSIG (MAXSIG+1)
227#elif defined (MAX_SIG) 250#elif defined MAX_SIG
228# define EV_NSIG (MAX_SIG+1) 251# define EV_NSIG (MAX_SIG+1)
229#elif defined (SIGARRAYSIZE) 252#elif defined SIGARRAYSIZE
230# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
231#elif defined (_sys_nsig) 254#elif defined _sys_nsig
232# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
233#else 256#else
234# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
235/* to make it compile regardless, just remove the above line, */
236/* but consider reporting it, too! :) */
237# define EV_NSIG 65
238#endif 258#endif
239 259
240#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
241# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
242#endif 262#endif
243 263
244#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
245# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
246# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
247# else 267# else
248# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
249# endif 269# endif
250#endif 270#endif
251 271
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
252#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
253# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
254# define EV_USE_MONOTONIC EV_FEATURE_OS 283# define EV_USE_MONOTONIC EV_FEATURE_OS
255# else 284# else
256# define EV_USE_MONOTONIC 0 285# define EV_USE_MONOTONIC 0
257# endif 286# endif
258#endif 287#endif
… …
295 324
296#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
297# define EV_USE_PORT 0 326# define EV_USE_PORT 0
298#endif 327#endif
299 328
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
300#ifndef EV_USE_INOTIFY 337#ifndef EV_USE_INOTIFY
301# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
302# define EV_USE_INOTIFY EV_FEATURE_OS 339# define EV_USE_INOTIFY EV_FEATURE_OS
303# else 340# else
304# define EV_USE_INOTIFY 0 341# define EV_USE_INOTIFY 0
… …
345 382
346#ifndef EV_HEAP_CACHE_AT 383#ifndef EV_HEAP_CACHE_AT
347# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 384# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
348#endif 385#endif
349 386
387#ifdef __ANDROID__
388/* supposedly, android doesn't typedef fd_mask */
389# undef EV_USE_SELECT
390# define EV_USE_SELECT 0
391/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
392# undef EV_USE_CLOCK_SYSCALL
393# define EV_USE_CLOCK_SYSCALL 0
394#endif
395
396/* aix's poll.h seems to cause lots of trouble */
397#ifdef _AIX
398/* AIX has a completely broken poll.h header */
399# undef EV_USE_POLL
400# define EV_USE_POLL 0
401#endif
402
350/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 403/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
351/* which makes programs even slower. might work on other unices, too. */ 404/* which makes programs even slower. might work on other unices, too. */
352#if EV_USE_CLOCK_SYSCALL 405#if EV_USE_CLOCK_SYSCALL
353# include <syscall.h> 406# include <sys/syscall.h>
354# ifdef SYS_clock_gettime 407# ifdef SYS_clock_gettime
355# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 408# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
356# undef EV_USE_MONOTONIC 409# undef EV_USE_MONOTONIC
357# define EV_USE_MONOTONIC 1 410# define EV_USE_MONOTONIC 1
358# else 411# else
… …
361# endif 414# endif
362#endif 415#endif
363 416
364/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 417/* this block fixes any misconfiguration where we know we run into trouble otherwise */
365 418
366#ifdef _AIX
367/* AIX has a completely broken poll.h header */
368# undef EV_USE_POLL
369# define EV_USE_POLL 0
370#endif
371
372#ifndef CLOCK_MONOTONIC 419#ifndef CLOCK_MONOTONIC
373# undef EV_USE_MONOTONIC 420# undef EV_USE_MONOTONIC
374# define EV_USE_MONOTONIC 0 421# define EV_USE_MONOTONIC 0
375#endif 422#endif
376 423
… …
384# define EV_USE_INOTIFY 0 431# define EV_USE_INOTIFY 0
385#endif 432#endif
386 433
387#if !EV_USE_NANOSLEEP 434#if !EV_USE_NANOSLEEP
388/* hp-ux has it in sys/time.h, which we unconditionally include above */ 435/* hp-ux has it in sys/time.h, which we unconditionally include above */
389# if !defined(_WIN32) && !defined(__hpux) 436# if !defined _WIN32 && !defined __hpux
390# include <sys/select.h> 437# include <sys/select.h>
438# endif
439#endif
440
441#if EV_USE_LINUXAIO
442# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */
444# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0
391# endif 446# endif
392#endif 447#endif
393 448
394#if EV_USE_INOTIFY 449#if EV_USE_INOTIFY
395# include <sys/statfs.h> 450# include <sys/statfs.h>
… …
397/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 452/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
398# ifndef IN_DONT_FOLLOW 453# ifndef IN_DONT_FOLLOW
399# undef EV_USE_INOTIFY 454# undef EV_USE_INOTIFY
400# define EV_USE_INOTIFY 0 455# define EV_USE_INOTIFY 0
401# endif 456# endif
402#endif
403
404#if EV_SELECT_IS_WINSOCKET
405# include <winsock.h>
406#endif 457#endif
407 458
408#if EV_USE_EVENTFD 459#if EV_USE_EVENTFD
409/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 460/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
410# include <stdint.h> 461# include <stdint.h>
… …
467/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
468/* ECB.H BEGIN */ 519/* ECB.H BEGIN */
469/* 520/*
470 * libecb - http://software.schmorp.de/pkg/libecb 521 * libecb - http://software.schmorp.de/pkg/libecb
471 * 522 *
472 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
473 * Copyright (©) 2011 Emanuele Giaquinta 524 * Copyright (©) 2011 Emanuele Giaquinta
474 * All rights reserved. 525 * All rights reserved.
475 * 526 *
476 * Redistribution and use in source and binary forms, with or without modifica- 527 * Redistribution and use in source and binary forms, with or without modifica-
477 * tion, are permitted provided that the following conditions are met: 528 * tion, are permitted provided that the following conditions are met:
… …
491 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 542 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
492 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 543 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
493 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 544 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
494 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 545 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
495 * OF THE POSSIBILITY OF SUCH DAMAGE. 546 * OF THE POSSIBILITY OF SUCH DAMAGE.
547 *
548 * Alternatively, the contents of this file may be used under the terms of
549 * the GNU General Public License ("GPL") version 2 or any later version,
550 * in which case the provisions of the GPL are applicable instead of
551 * the above. If you wish to allow the use of your version of this file
552 * only under the terms of the GPL and not to allow others to use your
553 * version of this file under the BSD license, indicate your decision
554 * by deleting the provisions above and replace them with the notice
555 * and other provisions required by the GPL. If you do not delete the
556 * provisions above, a recipient may use your version of this file under
557 * either the BSD or the GPL.
496 */ 558 */
497 559
498#ifndef ECB_H 560#ifndef ECB_H
499#define ECB_H 561#define ECB_H
562
563/* 16 bits major, 16 bits minor */
564#define ECB_VERSION 0x00010006
500 565
501#ifdef _WIN32 566#ifdef _WIN32
502 typedef signed char int8_t; 567 typedef signed char int8_t;
503 typedef unsigned char uint8_t; 568 typedef unsigned char uint8_t;
504 typedef signed short int16_t; 569 typedef signed short int16_t;
… …
510 typedef unsigned long long uint64_t; 575 typedef unsigned long long uint64_t;
511 #else /* _MSC_VER || __BORLANDC__ */ 576 #else /* _MSC_VER || __BORLANDC__ */
512 typedef signed __int64 int64_t; 577 typedef signed __int64 int64_t;
513 typedef unsigned __int64 uint64_t; 578 typedef unsigned __int64 uint64_t;
514 #endif 579 #endif
580 #ifdef _WIN64
581 #define ECB_PTRSIZE 8
582 typedef uint64_t uintptr_t;
583 typedef int64_t intptr_t;
584 #else
585 #define ECB_PTRSIZE 4
586 typedef uint32_t uintptr_t;
587 typedef int32_t intptr_t;
588 #endif
515#else 589#else
516 #include <inttypes.h> 590 #include <inttypes.h>
591 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
592 #define ECB_PTRSIZE 8
593 #else
594 #define ECB_PTRSIZE 4
595 #endif
596#endif
597
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
600
601/* work around x32 idiocy by defining proper macros */
602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
603 #if _ILP32
604 #define ECB_AMD64_X32 1
605 #else
606 #define ECB_AMD64 1
607 #endif
517#endif 608#endif
518 609
519/* many compilers define _GNUC_ to some versions but then only implement 610/* many compilers define _GNUC_ to some versions but then only implement
520 * what their idiot authors think are the "more important" extensions, 611 * what their idiot authors think are the "more important" extensions,
521 * causing enormous grief in return for some better fake benchmark numbers. 612 * causing enormous grief in return for some better fake benchmark numbers.
522 * or so. 613 * or so.
523 * we try to detect these and simply assume they are not gcc - if they have 614 * we try to detect these and simply assume they are not gcc - if they have
524 * an issue with that they should have done it right in the first place. 615 * an issue with that they should have done it right in the first place.
525 */ 616 */
526#ifndef ECB_GCC_VERSION
527 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 617#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
528 #define ECB_GCC_VERSION(major,minor) 0 618 #define ECB_GCC_VERSION(major,minor) 0
529 #else 619#else
530 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 620 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
531 #endif 621#endif
622
623#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
624
625#if __clang__ && defined __has_builtin
626 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
627#else
628 #define ECB_CLANG_BUILTIN(x) 0
629#endif
630
631#if __clang__ && defined __has_extension
632 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
633#else
634 #define ECB_CLANG_EXTENSION(x) 0
635#endif
636
637#define ECB_CPP (__cplusplus+0)
638#define ECB_CPP11 (__cplusplus >= 201103L)
639#define ECB_CPP14 (__cplusplus >= 201402L)
640#define ECB_CPP17 (__cplusplus >= 201703L)
641
642#if ECB_CPP
643 #define ECB_C 0
644 #define ECB_STDC_VERSION 0
645#else
646 #define ECB_C 1
647 #define ECB_STDC_VERSION __STDC_VERSION__
648#endif
649
650#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
651#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
652#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
653
654#if ECB_CPP
655 #define ECB_EXTERN_C extern "C"
656 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
657 #define ECB_EXTERN_C_END }
658#else
659 #define ECB_EXTERN_C extern
660 #define ECB_EXTERN_C_BEG
661 #define ECB_EXTERN_C_END
532#endif 662#endif
533 663
534/*****************************************************************************/ 664/*****************************************************************************/
535 665
536/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 666/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 667/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
538 668
539#if ECB_NO_THREADS || ECB_NO_SMP 669#if ECB_NO_THREADS
670 #define ECB_NO_SMP 1
671#endif
672
673#if ECB_NO_SMP
540 #define ECB_MEMORY_FENCE do { } while (0) 674 #define ECB_MEMORY_FENCE do { } while (0)
541#endif 675#endif
542 676
677/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
678#if __xlC__ && ECB_CPP
679 #include <builtins.h>
680#endif
681
682#if 1400 <= _MSC_VER
683 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
684#endif
685
543#ifndef ECB_MEMORY_FENCE 686#ifndef ECB_MEMORY_FENCE
544 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 687 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
688 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
545 #if __i386 || __i386__ 689 #if __i386 || __i386__
546 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
547 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
548 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
549 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 693 #elif ECB_GCC_AMD64
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 695 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 696 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
553 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 697 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
699 #elif defined __ARM_ARCH_2__ \
700 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
701 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
702 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
703 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
704 || defined __ARM_ARCH_5TEJ__
705 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
555 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 706 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
556 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 707 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
708 || defined __ARM_ARCH_6T2__
557 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 709 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
558 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 710 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
559 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 711 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
560 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 712 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
561 #elif __sparc || __sparc__ 713 #elif __aarch64__
714 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
715 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 716 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 717 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 718 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
719 #elif defined __s390__ || defined __s390x__
720 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
721 #elif defined __mips__
722 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
723 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
724 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
725 #elif defined __alpha__
726 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
727 #elif defined __hppa__
728 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
729 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
730 #elif defined __ia64__
731 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
732 #elif defined __m68k__
733 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
734 #elif defined __m88k__
735 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
736 #elif defined __sh__
737 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
565 #endif 738 #endif
566 #endif 739 #endif
567#endif 740#endif
568 741
569#ifndef ECB_MEMORY_FENCE 742#ifndef ECB_MEMORY_FENCE
743 #if ECB_GCC_VERSION(4,7)
744 /* see comment below (stdatomic.h) about the C11 memory model. */
745 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
746 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
747 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
748 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
749
750 #elif ECB_CLANG_EXTENSION(c_atomic)
751 /* see comment below (stdatomic.h) about the C11 memory model. */
752 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
753 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
754 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
755 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
756
570 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 757 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
571 #define ECB_MEMORY_FENCE __sync_synchronize () 758 #define ECB_MEMORY_FENCE __sync_synchronize ()
572 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 759 #elif _MSC_VER >= 1500 /* VC++ 2008 */
573 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 760 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
761 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
762 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
763 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
764 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
574 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 765 #elif _MSC_VER >= 1400 /* VC++ 2005 */
575 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 766 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
576 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 767 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
577 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 768 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
578 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 769 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
579 #elif defined(_WIN32) 770 #elif defined _WIN32
580 #include <WinNT.h> 771 #include <WinNT.h>
581 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 772 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
582 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 773 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
583 #include <mbarrier.h> 774 #include <mbarrier.h>
584 #define ECB_MEMORY_FENCE __machine_rw_barrier () 775 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
585 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 776 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
586 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 777 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
778 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
779 #elif __xlC__
780 #define ECB_MEMORY_FENCE __sync ()
781 #endif
782#endif
783
784#ifndef ECB_MEMORY_FENCE
785 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
786 /* we assume that these memory fences work on all variables/all memory accesses, */
787 /* not just C11 atomics and atomic accesses */
788 #include <stdatomic.h>
789 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
790 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
791 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
587 #endif 792 #endif
588#endif 793#endif
589 794
590#ifndef ECB_MEMORY_FENCE 795#ifndef ECB_MEMORY_FENCE
591 #if !ECB_AVOID_PTHREADS 796 #if !ECB_AVOID_PTHREADS
… …
603 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 808 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
604 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 809 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
605 #endif 810 #endif
606#endif 811#endif
607 812
608#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 813#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
609 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 814 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
610#endif 815#endif
611 816
612#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 817#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
613 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 818 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
614#endif 819#endif
615 820
821#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
822 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
823#endif
824
616/*****************************************************************************/ 825/*****************************************************************************/
617 826
618#define ECB_C99 (__STDC_VERSION__ >= 199901L) 827#if ECB_CPP
619
620#if __cplusplus
621 #define ecb_inline static inline 828 #define ecb_inline static inline
622#elif ECB_GCC_VERSION(2,5) 829#elif ECB_GCC_VERSION(2,5)
623 #define ecb_inline static __inline__ 830 #define ecb_inline static __inline__
624#elif ECB_C99 831#elif ECB_C99
625 #define ecb_inline static inline 832 #define ecb_inline static inline
… …
639 846
640#define ECB_CONCAT_(a, b) a ## b 847#define ECB_CONCAT_(a, b) a ## b
641#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 848#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
642#define ECB_STRINGIFY_(a) # a 849#define ECB_STRINGIFY_(a) # a
643#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 850#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
851#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
644 852
645#define ecb_function_ ecb_inline 853#define ecb_function_ ecb_inline
646 854
647#if ECB_GCC_VERSION(3,1) 855#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
648 #define ecb_attribute(attrlist) __attribute__(attrlist) 856 #define ecb_attribute(attrlist) __attribute__ (attrlist)
857#else
858 #define ecb_attribute(attrlist)
859#endif
860
861#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
649 #define ecb_is_constant(expr) __builtin_constant_p (expr) 862 #define ecb_is_constant(expr) __builtin_constant_p (expr)
863#else
864 /* possible C11 impl for integral types
865 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
866 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
867
868 #define ecb_is_constant(expr) 0
869#endif
870
871#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
650 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 872 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
873#else
874 #define ecb_expect(expr,value) (expr)
875#endif
876
877#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
651 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 878 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
652#else 879#else
653 #define ecb_attribute(attrlist)
654 #define ecb_is_constant(expr) 0
655 #define ecb_expect(expr,value) (expr)
656 #define ecb_prefetch(addr,rw,locality) 880 #define ecb_prefetch(addr,rw,locality)
657#endif 881#endif
658 882
659/* no emulation for ecb_decltype */ 883/* no emulation for ecb_decltype */
660#if ECB_GCC_VERSION(4,5) 884#if ECB_CPP11
885 // older implementations might have problems with decltype(x)::type, work around it
886 template<class T> struct ecb_decltype_t { typedef T type; };
661 #define ecb_decltype(x) __decltype(x) 887 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
662#elif ECB_GCC_VERSION(3,0) 888#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
663 #define ecb_decltype(x) __typeof(x) 889 #define ecb_decltype(x) __typeof__ (x)
664#endif 890#endif
665 891
892#if _MSC_VER >= 1300
893 #define ecb_deprecated __declspec (deprecated)
894#else
895 #define ecb_deprecated ecb_attribute ((__deprecated__))
896#endif
897
898#if _MSC_VER >= 1500
899 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
900#elif ECB_GCC_VERSION(4,5)
901 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
902#else
903 #define ecb_deprecated_message(msg) ecb_deprecated
904#endif
905
906#if _MSC_VER >= 1400
907 #define ecb_noinline __declspec (noinline)
908#else
666#define ecb_noinline ecb_attribute ((__noinline__)) 909 #define ecb_noinline ecb_attribute ((__noinline__))
667#define ecb_noreturn ecb_attribute ((__noreturn__)) 910#endif
911
668#define ecb_unused ecb_attribute ((__unused__)) 912#define ecb_unused ecb_attribute ((__unused__))
669#define ecb_const ecb_attribute ((__const__)) 913#define ecb_const ecb_attribute ((__const__))
670#define ecb_pure ecb_attribute ((__pure__)) 914#define ecb_pure ecb_attribute ((__pure__))
915
916#if ECB_C11 || __IBMC_NORETURN
917 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
918 #define ecb_noreturn _Noreturn
919#elif ECB_CPP11
920 #define ecb_noreturn [[noreturn]]
921#elif _MSC_VER >= 1200
922 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
923 #define ecb_noreturn __declspec (noreturn)
924#else
925 #define ecb_noreturn ecb_attribute ((__noreturn__))
926#endif
671 927
672#if ECB_GCC_VERSION(4,3) 928#if ECB_GCC_VERSION(4,3)
673 #define ecb_artificial ecb_attribute ((__artificial__)) 929 #define ecb_artificial ecb_attribute ((__artificial__))
674 #define ecb_hot ecb_attribute ((__hot__)) 930 #define ecb_hot ecb_attribute ((__hot__))
675 #define ecb_cold ecb_attribute ((__cold__)) 931 #define ecb_cold ecb_attribute ((__cold__))
… …
687/* for compatibility to the rest of the world */ 943/* for compatibility to the rest of the world */
688#define ecb_likely(expr) ecb_expect_true (expr) 944#define ecb_likely(expr) ecb_expect_true (expr)
689#define ecb_unlikely(expr) ecb_expect_false (expr) 945#define ecb_unlikely(expr) ecb_expect_false (expr)
690 946
691/* count trailing zero bits and count # of one bits */ 947/* count trailing zero bits and count # of one bits */
692#if ECB_GCC_VERSION(3,4) 948#if ECB_GCC_VERSION(3,4) \
949 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
950 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
951 && ECB_CLANG_BUILTIN(__builtin_popcount))
693 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 952 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
694 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 953 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
695 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 954 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
696 #define ecb_ctz32(x) __builtin_ctz (x) 955 #define ecb_ctz32(x) __builtin_ctz (x)
697 #define ecb_ctz64(x) __builtin_ctzll (x) 956 #define ecb_ctz64(x) __builtin_ctzll (x)
698 #define ecb_popcount32(x) __builtin_popcount (x) 957 #define ecb_popcount32(x) __builtin_popcount (x)
699 /* no popcountll */ 958 /* no popcountll */
700#else 959#else
701 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 960 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
702 ecb_function_ int 961 ecb_function_ ecb_const int
703 ecb_ctz32 (uint32_t x) 962 ecb_ctz32 (uint32_t x)
704 { 963 {
964#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
965 unsigned long r;
966 _BitScanForward (&r, x);
967 return (int)r;
968#else
705 int r = 0; 969 int r = 0;
706 970
707 x &= ~x + 1; /* this isolates the lowest bit */ 971 x &= ~x + 1; /* this isolates the lowest bit */
708 972
709#if ECB_branchless_on_i386 973#if ECB_branchless_on_i386
… …
719 if (x & 0xff00ff00) r += 8; 983 if (x & 0xff00ff00) r += 8;
720 if (x & 0xffff0000) r += 16; 984 if (x & 0xffff0000) r += 16;
721#endif 985#endif
722 986
723 return r; 987 return r;
988#endif
724 } 989 }
725 990
726 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 991 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
727 ecb_function_ int 992 ecb_function_ ecb_const int
728 ecb_ctz64 (uint64_t x) 993 ecb_ctz64 (uint64_t x)
729 { 994 {
995#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
996 unsigned long r;
997 _BitScanForward64 (&r, x);
998 return (int)r;
999#else
730 int shift = x & 0xffffffffU ? 0 : 32; 1000 int shift = x & 0xffffffff ? 0 : 32;
731 return ecb_ctz32 (x >> shift) + shift; 1001 return ecb_ctz32 (x >> shift) + shift;
1002#endif
732 } 1003 }
733 1004
734 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1005 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
735 ecb_function_ int 1006 ecb_function_ ecb_const int
736 ecb_popcount32 (uint32_t x) 1007 ecb_popcount32 (uint32_t x)
737 { 1008 {
738 x -= (x >> 1) & 0x55555555; 1009 x -= (x >> 1) & 0x55555555;
739 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1010 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
740 x = ((x >> 4) + x) & 0x0f0f0f0f; 1011 x = ((x >> 4) + x) & 0x0f0f0f0f;
741 x *= 0x01010101; 1012 x *= 0x01010101;
742 1013
743 return x >> 24; 1014 return x >> 24;
744 } 1015 }
745 1016
746 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1017 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
747 ecb_function_ int ecb_ld32 (uint32_t x) 1018 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
748 { 1019 {
1020#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1021 unsigned long r;
1022 _BitScanReverse (&r, x);
1023 return (int)r;
1024#else
749 int r = 0; 1025 int r = 0;
750 1026
751 if (x >> 16) { x >>= 16; r += 16; } 1027 if (x >> 16) { x >>= 16; r += 16; }
752 if (x >> 8) { x >>= 8; r += 8; } 1028 if (x >> 8) { x >>= 8; r += 8; }
753 if (x >> 4) { x >>= 4; r += 4; } 1029 if (x >> 4) { x >>= 4; r += 4; }
754 if (x >> 2) { x >>= 2; r += 2; } 1030 if (x >> 2) { x >>= 2; r += 2; }
755 if (x >> 1) { r += 1; } 1031 if (x >> 1) { r += 1; }
756 1032
757 return r; 1033 return r;
1034#endif
758 } 1035 }
759 1036
760 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1037 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
761 ecb_function_ int ecb_ld64 (uint64_t x) 1038 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
762 { 1039 {
1040#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1041 unsigned long r;
1042 _BitScanReverse64 (&r, x);
1043 return (int)r;
1044#else
763 int r = 0; 1045 int r = 0;
764 1046
765 if (x >> 32) { x >>= 32; r += 32; } 1047 if (x >> 32) { x >>= 32; r += 32; }
766 1048
767 return r + ecb_ld32 (x); 1049 return r + ecb_ld32 (x);
1050#endif
768 } 1051 }
769#endif 1052#endif
770 1053
1054ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
1055ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1056ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
1057ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
1058
771ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1059ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
772ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1060ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
773{ 1061{
774 return ( (x * 0x0802U & 0x22110U) 1062 return ( (x * 0x0802U & 0x22110U)
775 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1063 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
776} 1064}
777 1065
778ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1066ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
779ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1067ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
780{ 1068{
781 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1069 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
782 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1070 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
783 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1071 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
784 x = ( x >> 8 ) | ( x << 8); 1072 x = ( x >> 8 ) | ( x << 8);
785 1073
786 return x; 1074 return x;
787} 1075}
788 1076
789ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1077ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
790ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1078ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
791{ 1079{
792 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1080 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
793 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1081 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
794 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1082 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
795 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1083 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
798 return x; 1086 return x;
799} 1087}
800 1088
801/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1089/* popcount64 is only available on 64 bit cpus as gcc builtin */
802/* so for this version we are lazy */ 1090/* so for this version we are lazy */
803ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1091ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
804ecb_function_ int 1092ecb_function_ ecb_const int
805ecb_popcount64 (uint64_t x) 1093ecb_popcount64 (uint64_t x)
806{ 1094{
807 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1095 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
808} 1096}
809 1097
810ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1098ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
811ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1099ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
812ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1100ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
813ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1101ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
814ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1102ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
815ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1103ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
816ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1104ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
817ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1105ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
818 1106
819ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1107ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
820ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1108ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
821ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1109ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
822ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1110ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
823ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1111ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
824ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1112ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
825ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1113ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
826ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1114ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
827 1115
828#if ECB_GCC_VERSION(4,3) 1116#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1117 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1118 #define ecb_bswap16(x) __builtin_bswap16 (x)
1119 #else
829 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1120 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1121 #endif
830 #define ecb_bswap32(x) __builtin_bswap32 (x) 1122 #define ecb_bswap32(x) __builtin_bswap32 (x)
831 #define ecb_bswap64(x) __builtin_bswap64 (x) 1123 #define ecb_bswap64(x) __builtin_bswap64 (x)
1124#elif _MSC_VER
1125 #include <stdlib.h>
1126 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1127 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1128 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
832#else 1129#else
833 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1130 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
834 ecb_function_ uint16_t 1131 ecb_function_ ecb_const uint16_t
835 ecb_bswap16 (uint16_t x) 1132 ecb_bswap16 (uint16_t x)
836 { 1133 {
837 return ecb_rotl16 (x, 8); 1134 return ecb_rotl16 (x, 8);
838 } 1135 }
839 1136
840 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1137 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
841 ecb_function_ uint32_t 1138 ecb_function_ ecb_const uint32_t
842 ecb_bswap32 (uint32_t x) 1139 ecb_bswap32 (uint32_t x)
843 { 1140 {
844 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1141 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
845 } 1142 }
846 1143
847 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1144 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
848 ecb_function_ uint64_t 1145 ecb_function_ ecb_const uint64_t
849 ecb_bswap64 (uint64_t x) 1146 ecb_bswap64 (uint64_t x)
850 { 1147 {
851 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1148 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
852 } 1149 }
853#endif 1150#endif
854 1151
855#if ECB_GCC_VERSION(4,5) 1152#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
856 #define ecb_unreachable() __builtin_unreachable () 1153 #define ecb_unreachable() __builtin_unreachable ()
857#else 1154#else
858 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1155 /* this seems to work fine, but gcc always emits a warning for it :/ */
859 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 1156 ecb_inline ecb_noreturn void ecb_unreachable (void);
860 ecb_function_ void ecb_unreachable (void) { } 1157 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
861#endif 1158#endif
862 1159
863/* try to tell the compiler that some condition is definitely true */ 1160/* try to tell the compiler that some condition is definitely true */
864#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1161#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
865 1162
866ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 1163ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
867ecb_function_ unsigned char 1164ecb_inline ecb_const uint32_t
868ecb_byteorder_helper (void) 1165ecb_byteorder_helper (void)
869{ 1166{
870 const uint32_t u = 0x11223344; 1167 /* the union code still generates code under pressure in gcc, */
871 return *(unsigned char *)&u; 1168 /* but less than using pointers, and always seems to */
1169 /* successfully return a constant. */
1170 /* the reason why we have this horrible preprocessor mess */
1171 /* is to avoid it in all cases, at least on common architectures */
1172 /* or when using a recent enough gcc version (>= 4.6) */
1173#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1174 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1175 #define ECB_LITTLE_ENDIAN 1
1176 return 0x44332211;
1177#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1178 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1179 #define ECB_BIG_ENDIAN 1
1180 return 0x11223344;
1181#else
1182 union
1183 {
1184 uint8_t c[4];
1185 uint32_t u;
1186 } u = { 0x11, 0x22, 0x33, 0x44 };
1187 return u.u;
1188#endif
872} 1189}
873 1190
874ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 1191ecb_inline ecb_const ecb_bool ecb_big_endian (void);
875ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1192ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
876ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 1193ecb_inline ecb_const ecb_bool ecb_little_endian (void);
877ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1194ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
878 1195
879#if ECB_GCC_VERSION(3,0) || ECB_C99 1196#if ECB_GCC_VERSION(3,0) || ECB_C99
880 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1197 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
881#else 1198#else
882 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1199 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
883#endif 1200#endif
884 1201
885#if __cplusplus 1202#if ECB_CPP
886 template<typename T> 1203 template<typename T>
887 static inline T ecb_div_rd (T val, T div) 1204 static inline T ecb_div_rd (T val, T div)
888 { 1205 {
889 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1206 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
890 } 1207 }
… …
907 } 1224 }
908#else 1225#else
909 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1226 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
910#endif 1227#endif
911 1228
1229ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1230ecb_function_ ecb_const uint32_t
1231ecb_binary16_to_binary32 (uint32_t x)
1232{
1233 unsigned int s = (x & 0x8000) << (31 - 15);
1234 int e = (x >> 10) & 0x001f;
1235 unsigned int m = x & 0x03ff;
1236
1237 if (ecb_expect_false (e == 31))
1238 /* infinity or NaN */
1239 e = 255 - (127 - 15);
1240 else if (ecb_expect_false (!e))
1241 {
1242 if (ecb_expect_true (!m))
1243 /* zero, handled by code below by forcing e to 0 */
1244 e = 0 - (127 - 15);
1245 else
1246 {
1247 /* subnormal, renormalise */
1248 unsigned int s = 10 - ecb_ld32 (m);
1249
1250 m = (m << s) & 0x3ff; /* mask implicit bit */
1251 e -= s - 1;
1252 }
1253 }
1254
1255 /* e and m now are normalised, or zero, (or inf or nan) */
1256 e += 127 - 15;
1257
1258 return s | (e << 23) | (m << (23 - 10));
1259}
1260
1261ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1262ecb_function_ ecb_const uint16_t
1263ecb_binary32_to_binary16 (uint32_t x)
1264{
1265 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1266 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1267 unsigned int m = x & 0x007fffff;
1268
1269 x &= 0x7fffffff;
1270
1271 /* if it's within range of binary16 normals, use fast path */
1272 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1273 {
1274 /* mantissa round-to-even */
1275 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1276
1277 /* handle overflow */
1278 if (ecb_expect_false (m >= 0x00800000))
1279 {
1280 m >>= 1;
1281 e += 1;
1282 }
1283
1284 return s | (e << 10) | (m >> (23 - 10));
1285 }
1286
1287 /* handle large numbers and infinity */
1288 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1289 return s | 0x7c00;
1290
1291 /* handle zero, subnormals and small numbers */
1292 if (ecb_expect_true (x < 0x38800000))
1293 {
1294 /* zero */
1295 if (ecb_expect_true (!x))
1296 return s;
1297
1298 /* handle subnormals */
1299
1300 /* too small, will be zero */
1301 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1302 return s;
1303
1304 m |= 0x00800000; /* make implicit bit explicit */
1305
1306 /* very tricky - we need to round to the nearest e (+10) bit value */
1307 {
1308 unsigned int bits = 14 - e;
1309 unsigned int half = (1 << (bits - 1)) - 1;
1310 unsigned int even = (m >> bits) & 1;
1311
1312 /* if this overflows, we will end up with a normalised number */
1313 m = (m + half + even) >> bits;
1314 }
1315
1316 return s | m;
1317 }
1318
1319 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1320 m >>= 13;
1321
1322 return s | 0x7c00 | m | !m;
1323}
1324
1325/*******************************************************************************/
1326/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1327
1328/* basically, everything uses "ieee pure-endian" floating point numbers */
1329/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1330#if 0 \
1331 || __i386 || __i386__ \
1332 || ECB_GCC_AMD64 \
1333 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1334 || defined __s390__ || defined __s390x__ \
1335 || defined __mips__ \
1336 || defined __alpha__ \
1337 || defined __hppa__ \
1338 || defined __ia64__ \
1339 || defined __m68k__ \
1340 || defined __m88k__ \
1341 || defined __sh__ \
1342 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1343 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1344 || defined __aarch64__
1345 #define ECB_STDFP 1
1346 #include <string.h> /* for memcpy */
1347#else
1348 #define ECB_STDFP 0
1349#endif
1350
1351#ifndef ECB_NO_LIBM
1352
1353 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1354
1355 /* only the oldest of old doesn't have this one. solaris. */
1356 #ifdef INFINITY
1357 #define ECB_INFINITY INFINITY
1358 #else
1359 #define ECB_INFINITY HUGE_VAL
1360 #endif
1361
1362 #ifdef NAN
1363 #define ECB_NAN NAN
1364 #else
1365 #define ECB_NAN ECB_INFINITY
1366 #endif
1367
1368 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1369 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1370 #define ecb_frexpf(x,e) frexpf ((x), (e))
1371 #else
1372 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1373 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1374 #endif
1375
1376 /* convert a float to ieee single/binary32 */
1377 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1378 ecb_function_ ecb_const uint32_t
1379 ecb_float_to_binary32 (float x)
1380 {
1381 uint32_t r;
1382
1383 #if ECB_STDFP
1384 memcpy (&r, &x, 4);
1385 #else
1386 /* slow emulation, works for anything but -0 */
1387 uint32_t m;
1388 int e;
1389
1390 if (x == 0e0f ) return 0x00000000U;
1391 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1392 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1393 if (x != x ) return 0x7fbfffffU;
1394
1395 m = ecb_frexpf (x, &e) * 0x1000000U;
1396
1397 r = m & 0x80000000U;
1398
1399 if (r)
1400 m = -m;
1401
1402 if (e <= -126)
1403 {
1404 m &= 0xffffffU;
1405 m >>= (-125 - e);
1406 e = -126;
1407 }
1408
1409 r |= (e + 126) << 23;
1410 r |= m & 0x7fffffU;
1411 #endif
1412
1413 return r;
1414 }
1415
1416 /* converts an ieee single/binary32 to a float */
1417 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1418 ecb_function_ ecb_const float
1419 ecb_binary32_to_float (uint32_t x)
1420 {
1421 float r;
1422
1423 #if ECB_STDFP
1424 memcpy (&r, &x, 4);
1425 #else
1426 /* emulation, only works for normals and subnormals and +0 */
1427 int neg = x >> 31;
1428 int e = (x >> 23) & 0xffU;
1429
1430 x &= 0x7fffffU;
1431
1432 if (e)
1433 x |= 0x800000U;
1434 else
1435 e = 1;
1436
1437 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1438 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1439
1440 r = neg ? -r : r;
1441 #endif
1442
1443 return r;
1444 }
1445
1446 /* convert a double to ieee double/binary64 */
1447 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1448 ecb_function_ ecb_const uint64_t
1449 ecb_double_to_binary64 (double x)
1450 {
1451 uint64_t r;
1452
1453 #if ECB_STDFP
1454 memcpy (&r, &x, 8);
1455 #else
1456 /* slow emulation, works for anything but -0 */
1457 uint64_t m;
1458 int e;
1459
1460 if (x == 0e0 ) return 0x0000000000000000U;
1461 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1462 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1463 if (x != x ) return 0X7ff7ffffffffffffU;
1464
1465 m = frexp (x, &e) * 0x20000000000000U;
1466
1467 r = m & 0x8000000000000000;;
1468
1469 if (r)
1470 m = -m;
1471
1472 if (e <= -1022)
1473 {
1474 m &= 0x1fffffffffffffU;
1475 m >>= (-1021 - e);
1476 e = -1022;
1477 }
1478
1479 r |= ((uint64_t)(e + 1022)) << 52;
1480 r |= m & 0xfffffffffffffU;
1481 #endif
1482
1483 return r;
1484 }
1485
1486 /* converts an ieee double/binary64 to a double */
1487 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1488 ecb_function_ ecb_const double
1489 ecb_binary64_to_double (uint64_t x)
1490 {
1491 double r;
1492
1493 #if ECB_STDFP
1494 memcpy (&r, &x, 8);
1495 #else
1496 /* emulation, only works for normals and subnormals and +0 */
1497 int neg = x >> 63;
1498 int e = (x >> 52) & 0x7ffU;
1499
1500 x &= 0xfffffffffffffU;
1501
1502 if (e)
1503 x |= 0x10000000000000U;
1504 else
1505 e = 1;
1506
1507 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1508 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1509
1510 r = neg ? -r : r;
1511 #endif
1512
1513 return r;
1514 }
1515
1516 /* convert a float to ieee half/binary16 */
1517 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1518 ecb_function_ ecb_const uint16_t
1519 ecb_float_to_binary16 (float x)
1520 {
1521 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1522 }
1523
1524 /* convert an ieee half/binary16 to float */
1525 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1526 ecb_function_ ecb_const float
1527 ecb_binary16_to_float (uint16_t x)
1528 {
1529 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1530 }
1531
1532#endif
1533
912#endif 1534#endif
913 1535
914/* ECB.H END */ 1536/* ECB.H END */
915 1537
916#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1538#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
917/* if your architecture doesn't need memory fences, e.g. because it is 1539/* if your architecture doesn't need memory fences, e.g. because it is
918 * single-cpu/core, or if you use libev in a project that doesn't use libev 1540 * single-cpu/core, or if you use libev in a project that doesn't use libev
919 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1541 * from multiple threads, then you can define ECB_NO_THREADS when compiling
920 * libev, in which cases the memory fences become nops. 1542 * libev, in which cases the memory fences become nops.
921 * alternatively, you can remove this #error and link against libpthread, 1543 * alternatively, you can remove this #error and link against libpthread,
922 * which will then provide the memory fences. 1544 * which will then provide the memory fences.
923 */ 1545 */
924# error "memory fences not defined for your architecture, please report" 1546# error "memory fences not defined for your architecture, please report"
… …
928# define ECB_MEMORY_FENCE do { } while (0) 1550# define ECB_MEMORY_FENCE do { } while (0)
929# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1551# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
930# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1552# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
931#endif 1553#endif
932 1554
933#define expect_false(cond) ecb_expect_false (cond)
934#define expect_true(cond) ecb_expect_true (cond)
935#define noinline ecb_noinline
936
937#define inline_size ecb_inline 1555#define inline_size ecb_inline
938 1556
939#if EV_FEATURE_CODE 1557#if EV_FEATURE_CODE
940# define inline_speed ecb_inline 1558# define inline_speed ecb_inline
941#else 1559#else
942# define inline_speed static noinline 1560# define inline_speed ecb_noinline static
943#endif 1561#endif
944 1562
945#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1563#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
946 1564
947#if EV_MINPRI == EV_MAXPRI 1565#if EV_MINPRI == EV_MAXPRI
948# define ABSPRI(w) (((W)w), 0) 1566# define ABSPRI(w) (((W)w), 0)
949#else 1567#else
950# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1568# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
951#endif 1569#endif
952 1570
953#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1571#define EMPTY /* required for microsofts broken pseudo-c compiler */
954#define EMPTY2(a,b) /* used to suppress some warnings */
955 1572
956typedef ev_watcher *W; 1573typedef ev_watcher *W;
957typedef ev_watcher_list *WL; 1574typedef ev_watcher_list *WL;
958typedef ev_watcher_time *WT; 1575typedef ev_watcher_time *WT;
959 1576
… …
984# include "ev_win32.c" 1601# include "ev_win32.c"
985#endif 1602#endif
986 1603
987/*****************************************************************************/ 1604/*****************************************************************************/
988 1605
1606#if EV_USE_LINUXAIO
1607# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1608#endif
1609
989/* define a suitable floor function (only used by periodics atm) */ 1610/* define a suitable floor function (only used by periodics atm) */
990 1611
991#if EV_USE_FLOOR 1612#if EV_USE_FLOOR
992# include <math.h> 1613# include <math.h>
993# define ev_floor(v) floor (v) 1614# define ev_floor(v) floor (v)
994#else 1615#else
995 1616
996#include <float.h> 1617#include <float.h>
997 1618
998/* a floor() replacement function, should be independent of ev_tstamp type */ 1619/* a floor() replacement function, should be independent of ev_tstamp type */
1620ecb_noinline
999static ev_tstamp noinline 1621static ev_tstamp
1000ev_floor (ev_tstamp v) 1622ev_floor (ev_tstamp v)
1001{ 1623{
1002 /* the choice of shift factor is not terribly important */ 1624 /* the choice of shift factor is not terribly important */
1003#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1625#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1004 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1626 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1005#else 1627#else
1006 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1007#endif 1629#endif
1008 1630
1009 /* argument too large for an unsigned long? */ 1631 /* argument too large for an unsigned long? */
1010 if (expect_false (v >= shift)) 1632 if (ecb_expect_false (v >= shift))
1011 { 1633 {
1012 ev_tstamp f; 1634 ev_tstamp f;
1013 1635
1014 if (v == v - 1.) 1636 if (v == v - 1.)
1015 return v; /* very large number */ 1637 return v; /* very large number */
… …
1017 f = shift * ev_floor (v * (1. / shift)); 1639 f = shift * ev_floor (v * (1. / shift));
1018 return f + ev_floor (v - f); 1640 return f + ev_floor (v - f);
1019 } 1641 }
1020 1642
1021 /* special treatment for negative args? */ 1643 /* special treatment for negative args? */
1022 if (expect_false (v < 0.)) 1644 if (ecb_expect_false (v < 0.))
1023 { 1645 {
1024 ev_tstamp f = -ev_floor (-v); 1646 ev_tstamp f = -ev_floor (-v);
1025 1647
1026 return f - (f == v ? 0 : 1); 1648 return f - (f == v ? 0 : 1);
1027 } 1649 }
… …
1036 1658
1037#ifdef __linux 1659#ifdef __linux
1038# include <sys/utsname.h> 1660# include <sys/utsname.h>
1039#endif 1661#endif
1040 1662
1041static unsigned int noinline ecb_cold 1663ecb_noinline ecb_cold
1664static unsigned int
1042ev_linux_version (void) 1665ev_linux_version (void)
1043{ 1666{
1044#ifdef __linux 1667#ifdef __linux
1045 unsigned int v = 0; 1668 unsigned int v = 0;
1046 struct utsname buf; 1669 struct utsname buf;
… …
1075} 1698}
1076 1699
1077/*****************************************************************************/ 1700/*****************************************************************************/
1078 1701
1079#if EV_AVOID_STDIO 1702#if EV_AVOID_STDIO
1080static void noinline ecb_cold 1703ecb_noinline ecb_cold
1704static void
1081ev_printerr (const char *msg) 1705ev_printerr (const char *msg)
1082{ 1706{
1083 write (STDERR_FILENO, msg, strlen (msg)); 1707 write (STDERR_FILENO, msg, strlen (msg));
1084} 1708}
1085#endif 1709#endif
1086 1710
1087static void (*syserr_cb)(const char *msg); 1711static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1088 1712
1089void ecb_cold 1713ecb_cold
1714void
1090ev_set_syserr_cb (void (*cb)(const char *msg)) 1715ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1091{ 1716{
1092 syserr_cb = cb; 1717 syserr_cb = cb;
1093} 1718}
1094 1719
1095static void noinline ecb_cold 1720ecb_noinline ecb_cold
1721static void
1096ev_syserr (const char *msg) 1722ev_syserr (const char *msg)
1097{ 1723{
1098 if (!msg) 1724 if (!msg)
1099 msg = "(libev) system error"; 1725 msg = "(libev) system error";
1100 1726
… …
1113 abort (); 1739 abort ();
1114 } 1740 }
1115} 1741}
1116 1742
1117static void * 1743static void *
1118ev_realloc_emul (void *ptr, long size) 1744ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1119{ 1745{
1120#if __GLIBC__
1121 return realloc (ptr, size);
1122#else
1123 /* some systems, notably openbsd and darwin, fail to properly 1746 /* some systems, notably openbsd and darwin, fail to properly
1124 * implement realloc (x, 0) (as required by both ansi c-89 and 1747 * implement realloc (x, 0) (as required by both ansi c-89 and
1125 * the single unix specification, so work around them here. 1748 * the single unix specification, so work around them here.
1749 * recently, also (at least) fedora and debian started breaking it,
1750 * despite documenting it otherwise.
1126 */ 1751 */
1127 1752
1128 if (size) 1753 if (size)
1129 return realloc (ptr, size); 1754 return realloc (ptr, size);
1130 1755
1131 free (ptr); 1756 free (ptr);
1132 return 0; 1757 return 0;
1133#endif
1134} 1758}
1135 1759
1136static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1760static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1137 1761
1138void ecb_cold 1762ecb_cold
1763void
1139ev_set_allocator (void *(*cb)(void *ptr, long size)) 1764ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1140{ 1765{
1141 alloc = cb; 1766 alloc = cb;
1142} 1767}
1143 1768
1144inline_speed void * 1769inline_speed void *
… …
1171typedef struct 1796typedef struct
1172{ 1797{
1173 WL head; 1798 WL head;
1174 unsigned char events; /* the events watched for */ 1799 unsigned char events; /* the events watched for */
1175 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1800 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1176 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1801 unsigned char emask; /* some backends store the actual kernel mask in here */
1177 unsigned char unused; 1802 unsigned char unused;
1178#if EV_USE_EPOLL 1803#if EV_USE_EPOLL
1179 unsigned int egen; /* generation counter to counter epoll bugs */ 1804 unsigned int egen; /* generation counter to counter epoll bugs */
1180#endif 1805#endif
1181#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1806#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
… …
1246 static int ev_default_loop_ptr; 1871 static int ev_default_loop_ptr;
1247 1872
1248#endif 1873#endif
1249 1874
1250#if EV_FEATURE_API 1875#if EV_FEATURE_API
1251# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1876# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1252# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1877# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1253# define EV_INVOKE_PENDING invoke_cb (EV_A) 1878# define EV_INVOKE_PENDING invoke_cb (EV_A)
1254#else 1879#else
1255# define EV_RELEASE_CB (void)0 1880# define EV_RELEASE_CB (void)0
1256# define EV_ACQUIRE_CB (void)0 1881# define EV_ACQUIRE_CB (void)0
1257# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1882# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1261 1886
1262/*****************************************************************************/ 1887/*****************************************************************************/
1263 1888
1264#ifndef EV_HAVE_EV_TIME 1889#ifndef EV_HAVE_EV_TIME
1265ev_tstamp 1890ev_tstamp
1266ev_time (void) 1891ev_time (void) EV_NOEXCEPT
1267{ 1892{
1268#if EV_USE_REALTIME 1893#if EV_USE_REALTIME
1269 if (expect_true (have_realtime)) 1894 if (ecb_expect_true (have_realtime))
1270 { 1895 {
1271 struct timespec ts; 1896 struct timespec ts;
1272 clock_gettime (CLOCK_REALTIME, &ts); 1897 clock_gettime (CLOCK_REALTIME, &ts);
1273 return ts.tv_sec + ts.tv_nsec * 1e-9; 1898 return ts.tv_sec + ts.tv_nsec * 1e-9;
1274 } 1899 }
… …
1282 1907
1283inline_size ev_tstamp 1908inline_size ev_tstamp
1284get_clock (void) 1909get_clock (void)
1285{ 1910{
1286#if EV_USE_MONOTONIC 1911#if EV_USE_MONOTONIC
1287 if (expect_true (have_monotonic)) 1912 if (ecb_expect_true (have_monotonic))
1288 { 1913 {
1289 struct timespec ts; 1914 struct timespec ts;
1290 clock_gettime (CLOCK_MONOTONIC, &ts); 1915 clock_gettime (CLOCK_MONOTONIC, &ts);
1291 return ts.tv_sec + ts.tv_nsec * 1e-9; 1916 return ts.tv_sec + ts.tv_nsec * 1e-9;
1292 } 1917 }
… …
1295 return ev_time (); 1920 return ev_time ();
1296} 1921}
1297 1922
1298#if EV_MULTIPLICITY 1923#if EV_MULTIPLICITY
1299ev_tstamp 1924ev_tstamp
1300ev_now (EV_P) 1925ev_now (EV_P) EV_NOEXCEPT
1301{ 1926{
1302 return ev_rt_now; 1927 return ev_rt_now;
1303} 1928}
1304#endif 1929#endif
1305 1930
1306void 1931void
1307ev_sleep (ev_tstamp delay) 1932ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1308{ 1933{
1309 if (delay > 0.) 1934 if (delay > 0.)
1310 { 1935 {
1311#if EV_USE_NANOSLEEP 1936#if EV_USE_NANOSLEEP
1312 struct timespec ts; 1937 struct timespec ts;
1313 1938
1314 EV_TS_SET (ts, delay); 1939 EV_TS_SET (ts, delay);
1315 nanosleep (&ts, 0); 1940 nanosleep (&ts, 0);
1316#elif defined(_WIN32) 1941#elif defined _WIN32
1942 /* maybe this should round up, as ms is very low resolution */
1943 /* compared to select (µs) or nanosleep (ns) */
1317 Sleep ((unsigned long)(delay * 1e3)); 1944 Sleep ((unsigned long)(delay * 1e3));
1318#else 1945#else
1319 struct timeval tv; 1946 struct timeval tv;
1320 1947
1321 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1948 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1352 } 1979 }
1353 1980
1354 return ncur; 1981 return ncur;
1355} 1982}
1356 1983
1357static void * noinline ecb_cold 1984ecb_noinline ecb_cold
1985static void *
1358array_realloc (int elem, void *base, int *cur, int cnt) 1986array_realloc (int elem, void *base, int *cur, int cnt)
1359{ 1987{
1360 *cur = array_nextsize (elem, *cur, cnt); 1988 *cur = array_nextsize (elem, *cur, cnt);
1361 return ev_realloc (base, elem * *cur); 1989 return ev_realloc (base, elem * *cur);
1362} 1990}
1363 1991
1992#define array_needsize_noinit(base,offset,count)
1993
1364#define array_init_zero(base,count) \ 1994#define array_needsize_zerofill(base,offset,count) \
1365 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1995 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1366 1996
1367#define array_needsize(type,base,cur,cnt,init) \ 1997#define array_needsize(type,base,cur,cnt,init) \
1368 if (expect_false ((cnt) > (cur))) \ 1998 if (ecb_expect_false ((cnt) > (cur))) \
1369 { \ 1999 { \
1370 int ecb_unused ocur_ = (cur); \ 2000 ecb_unused int ocur_ = (cur); \
1371 (base) = (type *)array_realloc \ 2001 (base) = (type *)array_realloc \
1372 (sizeof (type), (base), &(cur), (cnt)); \ 2002 (sizeof (type), (base), &(cur), (cnt)); \
1373 init ((base) + (ocur_), (cur) - ocur_); \ 2003 init ((base), ocur_, ((cur) - ocur_)); \
1374 } 2004 }
1375 2005
1376#if 0 2006#if 0
1377#define array_slim(type,stem) \ 2007#define array_slim(type,stem) \
1378 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2008 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1387 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2017 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1388 2018
1389/*****************************************************************************/ 2019/*****************************************************************************/
1390 2020
1391/* dummy callback for pending events */ 2021/* dummy callback for pending events */
1392static void noinline 2022ecb_noinline
2023static void
1393pendingcb (EV_P_ ev_prepare *w, int revents) 2024pendingcb (EV_P_ ev_prepare *w, int revents)
1394{ 2025{
1395} 2026}
1396 2027
1397void noinline 2028ecb_noinline
2029void
1398ev_feed_event (EV_P_ void *w, int revents) 2030ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1399{ 2031{
1400 W w_ = (W)w; 2032 W w_ = (W)w;
1401 int pri = ABSPRI (w_); 2033 int pri = ABSPRI (w_);
1402 2034
1403 if (expect_false (w_->pending)) 2035 if (ecb_expect_false (w_->pending))
1404 pendings [pri][w_->pending - 1].events |= revents; 2036 pendings [pri][w_->pending - 1].events |= revents;
1405 else 2037 else
1406 { 2038 {
1407 w_->pending = ++pendingcnt [pri]; 2039 w_->pending = ++pendingcnt [pri];
1408 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2040 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1409 pendings [pri][w_->pending - 1].w = w_; 2041 pendings [pri][w_->pending - 1].w = w_;
1410 pendings [pri][w_->pending - 1].events = revents; 2042 pendings [pri][w_->pending - 1].events = revents;
1411 } 2043 }
2044
2045 pendingpri = NUMPRI - 1;
1412} 2046}
1413 2047
1414inline_speed void 2048inline_speed void
1415feed_reverse (EV_P_ W w) 2049feed_reverse (EV_P_ W w)
1416{ 2050{
1417 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2051 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1418 rfeeds [rfeedcnt++] = w; 2052 rfeeds [rfeedcnt++] = w;
1419} 2053}
1420 2054
1421inline_size void 2055inline_size void
1422feed_reverse_done (EV_P_ int revents) 2056feed_reverse_done (EV_P_ int revents)
… …
1457inline_speed void 2091inline_speed void
1458fd_event (EV_P_ int fd, int revents) 2092fd_event (EV_P_ int fd, int revents)
1459{ 2093{
1460 ANFD *anfd = anfds + fd; 2094 ANFD *anfd = anfds + fd;
1461 2095
1462 if (expect_true (!anfd->reify)) 2096 if (ecb_expect_true (!anfd->reify))
1463 fd_event_nocheck (EV_A_ fd, revents); 2097 fd_event_nocheck (EV_A_ fd, revents);
1464} 2098}
1465 2099
1466void 2100void
1467ev_feed_fd_event (EV_P_ int fd, int revents) 2101ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1468{ 2102{
1469 if (fd >= 0 && fd < anfdmax) 2103 if (fd >= 0 && fd < anfdmax)
1470 fd_event_nocheck (EV_A_ fd, revents); 2104 fd_event_nocheck (EV_A_ fd, revents);
1471} 2105}
1472 2106
… …
1509 ev_io *w; 2143 ev_io *w;
1510 2144
1511 unsigned char o_events = anfd->events; 2145 unsigned char o_events = anfd->events;
1512 unsigned char o_reify = anfd->reify; 2146 unsigned char o_reify = anfd->reify;
1513 2147
1514 anfd->reify = 0; 2148 anfd->reify = 0;
1515 2149
1516 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2150 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1517 { 2151 {
1518 anfd->events = 0; 2152 anfd->events = 0;
1519 2153
1520 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2154 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1521 anfd->events |= (unsigned char)w->events; 2155 anfd->events |= (unsigned char)w->events;
… …
1530 2164
1531 fdchangecnt = 0; 2165 fdchangecnt = 0;
1532} 2166}
1533 2167
1534/* something about the given fd changed */ 2168/* something about the given fd changed */
1535inline_size void 2169inline_size
2170void
1536fd_change (EV_P_ int fd, int flags) 2171fd_change (EV_P_ int fd, int flags)
1537{ 2172{
1538 unsigned char reify = anfds [fd].reify; 2173 unsigned char reify = anfds [fd].reify;
1539 anfds [fd].reify |= flags; 2174 anfds [fd].reify |= flags;
1540 2175
1541 if (expect_true (!reify)) 2176 if (ecb_expect_true (!reify))
1542 { 2177 {
1543 ++fdchangecnt; 2178 ++fdchangecnt;
1544 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2179 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1545 fdchanges [fdchangecnt - 1] = fd; 2180 fdchanges [fdchangecnt - 1] = fd;
1546 } 2181 }
1547} 2182}
1548 2183
1549/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2184/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1550inline_speed void ecb_cold 2185inline_speed ecb_cold void
1551fd_kill (EV_P_ int fd) 2186fd_kill (EV_P_ int fd)
1552{ 2187{
1553 ev_io *w; 2188 ev_io *w;
1554 2189
1555 while ((w = (ev_io *)anfds [fd].head)) 2190 while ((w = (ev_io *)anfds [fd].head))
… …
1558 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2193 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1559 } 2194 }
1560} 2195}
1561 2196
1562/* check whether the given fd is actually valid, for error recovery */ 2197/* check whether the given fd is actually valid, for error recovery */
1563inline_size int ecb_cold 2198inline_size ecb_cold int
1564fd_valid (int fd) 2199fd_valid (int fd)
1565{ 2200{
1566#ifdef _WIN32 2201#ifdef _WIN32
1567 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2202 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1568#else 2203#else
1569 return fcntl (fd, F_GETFD) != -1; 2204 return fcntl (fd, F_GETFD) != -1;
1570#endif 2205#endif
1571} 2206}
1572 2207
1573/* called on EBADF to verify fds */ 2208/* called on EBADF to verify fds */
1574static void noinline ecb_cold 2209ecb_noinline ecb_cold
2210static void
1575fd_ebadf (EV_P) 2211fd_ebadf (EV_P)
1576{ 2212{
1577 int fd; 2213 int fd;
1578 2214
1579 for (fd = 0; fd < anfdmax; ++fd) 2215 for (fd = 0; fd < anfdmax; ++fd)
… …
1581 if (!fd_valid (fd) && errno == EBADF) 2217 if (!fd_valid (fd) && errno == EBADF)
1582 fd_kill (EV_A_ fd); 2218 fd_kill (EV_A_ fd);
1583} 2219}
1584 2220
1585/* called on ENOMEM in select/poll to kill some fds and retry */ 2221/* called on ENOMEM in select/poll to kill some fds and retry */
1586static void noinline ecb_cold 2222ecb_noinline ecb_cold
2223static void
1587fd_enomem (EV_P) 2224fd_enomem (EV_P)
1588{ 2225{
1589 int fd; 2226 int fd;
1590 2227
1591 for (fd = anfdmax; fd--; ) 2228 for (fd = anfdmax; fd--; )
… …
1595 break; 2232 break;
1596 } 2233 }
1597} 2234}
1598 2235
1599/* usually called after fork if backend needs to re-arm all fds from scratch */ 2236/* usually called after fork if backend needs to re-arm all fds from scratch */
1600static void noinline 2237ecb_noinline
2238static void
1601fd_rearm_all (EV_P) 2239fd_rearm_all (EV_P)
1602{ 2240{
1603 int fd; 2241 int fd;
1604 2242
1605 for (fd = 0; fd < anfdmax; ++fd) 2243 for (fd = 0; fd < anfdmax; ++fd)
… …
1658 ev_tstamp minat; 2296 ev_tstamp minat;
1659 ANHE *minpos; 2297 ANHE *minpos;
1660 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2298 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1661 2299
1662 /* find minimum child */ 2300 /* find minimum child */
1663 if (expect_true (pos + DHEAP - 1 < E)) 2301 if (ecb_expect_true (pos + DHEAP - 1 < E))
1664 { 2302 {
1665 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2303 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1666 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2304 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1667 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2305 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1668 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2306 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
… …
1786 2424
1787/*****************************************************************************/ 2425/*****************************************************************************/
1788 2426
1789#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2427#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1790 2428
1791static void noinline ecb_cold 2429ecb_noinline ecb_cold
2430static void
1792evpipe_init (EV_P) 2431evpipe_init (EV_P)
1793{ 2432{
1794 if (!ev_is_active (&pipe_w)) 2433 if (!ev_is_active (&pipe_w))
1795 { 2434 {
2435 int fds [2];
2436
1796# if EV_USE_EVENTFD 2437# if EV_USE_EVENTFD
2438 fds [0] = -1;
1797 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2439 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1798 if (evfd < 0 && errno == EINVAL) 2440 if (fds [1] < 0 && errno == EINVAL)
1799 evfd = eventfd (0, 0); 2441 fds [1] = eventfd (0, 0);
1800 2442
1801 if (evfd >= 0) 2443 if (fds [1] < 0)
2444# endif
1802 { 2445 {
2446 while (pipe (fds))
2447 ev_syserr ("(libev) error creating signal/async pipe");
2448
2449 fd_intern (fds [0]);
2450 }
2451
1803 evpipe [0] = -1; 2452 evpipe [0] = fds [0];
1804 fd_intern (evfd); /* doing it twice doesn't hurt */ 2453
1805 ev_io_set (&pipe_w, evfd, EV_READ); 2454 if (evpipe [1] < 0)
2455 evpipe [1] = fds [1]; /* first call, set write fd */
2456 else
2457 {
2458 /* on subsequent calls, do not change evpipe [1] */
2459 /* so that evpipe_write can always rely on its value. */
2460 /* this branch does not do anything sensible on windows, */
2461 /* so must not be executed on windows */
2462
2463 dup2 (fds [1], evpipe [1]);
2464 close (fds [1]);
2465 }
2466
2467 fd_intern (evpipe [1]);
2468
2469 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2470 ev_io_start (EV_A_ &pipe_w);
2471 ev_unref (EV_A); /* watcher should not keep loop alive */
2472 }
2473}
2474
2475inline_speed void
2476evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2477{
2478 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2479
2480 if (ecb_expect_true (*flag))
2481 return;
2482
2483 *flag = 1;
2484 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2485
2486 pipe_write_skipped = 1;
2487
2488 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2489
2490 if (pipe_write_wanted)
2491 {
2492 int old_errno;
2493
2494 pipe_write_skipped = 0;
2495 ECB_MEMORY_FENCE_RELEASE;
2496
2497 old_errno = errno; /* save errno because write will clobber it */
2498
2499#if EV_USE_EVENTFD
2500 if (evpipe [0] < 0)
2501 {
2502 uint64_t counter = 1;
2503 write (evpipe [1], &counter, sizeof (uint64_t));
1806 } 2504 }
1807 else 2505 else
1808# endif 2506#endif
1809 { 2507 {
1810 while (pipe (evpipe)) 2508#ifdef _WIN32
1811 ev_syserr ("(libev) error creating signal/async pipe"); 2509 WSABUF buf;
1812 2510 DWORD sent;
1813 fd_intern (evpipe [0]); 2511 buf.buf = (char *)&buf;
1814 fd_intern (evpipe [1]); 2512 buf.len = 1;
1815 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2513 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1816 } 2514#else
1817
1818 ev_io_start (EV_A_ &pipe_w);
1819 ev_unref (EV_A); /* watcher should not keep loop alive */
1820 }
1821}
1822
1823inline_speed void
1824evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1825{
1826 if (expect_true (*flag))
1827 return;
1828
1829 *flag = 1;
1830
1831 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1832
1833 pipe_write_skipped = 1;
1834
1835 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1836
1837 if (pipe_write_wanted)
1838 {
1839 int old_errno;
1840
1841 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1842
1843 old_errno = errno; /* save errno because write will clobber it */
1844
1845#if EV_USE_EVENTFD
1846 if (evfd >= 0)
1847 {
1848 uint64_t counter = 1;
1849 write (evfd, &counter, sizeof (uint64_t));
1850 }
1851 else
1852#endif
1853 {
1854 /* win32 people keep sending patches that change this write() to send() */
1855 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1856 /* so when you think this write should be a send instead, please find out */
1857 /* where your send() is from - it's definitely not the microsoft send, and */
1858 /* tell me. thank you. */
1859 write (evpipe [1], &(evpipe [1]), 1); 2515 write (evpipe [1], &(evpipe [1]), 1);
2516#endif
1860 } 2517 }
1861 2518
1862 errno = old_errno; 2519 errno = old_errno;
1863 } 2520 }
1864} 2521}
… …
1871 int i; 2528 int i;
1872 2529
1873 if (revents & EV_READ) 2530 if (revents & EV_READ)
1874 { 2531 {
1875#if EV_USE_EVENTFD 2532#if EV_USE_EVENTFD
1876 if (evfd >= 0) 2533 if (evpipe [0] < 0)
1877 { 2534 {
1878 uint64_t counter; 2535 uint64_t counter;
1879 read (evfd, &counter, sizeof (uint64_t)); 2536 read (evpipe [1], &counter, sizeof (uint64_t));
1880 } 2537 }
1881 else 2538 else
1882#endif 2539#endif
1883 { 2540 {
1884 char dummy; 2541 char dummy[4];
1885 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2542#ifdef _WIN32
2543 WSABUF buf;
2544 DWORD recvd;
2545 DWORD flags = 0;
2546 buf.buf = dummy;
2547 buf.len = sizeof (dummy);
2548 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2549#else
1886 read (evpipe [0], &dummy, 1); 2550 read (evpipe [0], &dummy, sizeof (dummy));
2551#endif
1887 } 2552 }
1888 } 2553 }
1889 2554
1890 pipe_write_skipped = 0; 2555 pipe_write_skipped = 0;
2556
2557 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1891 2558
1892#if EV_SIGNAL_ENABLE 2559#if EV_SIGNAL_ENABLE
1893 if (sig_pending) 2560 if (sig_pending)
1894 { 2561 {
1895 sig_pending = 0; 2562 sig_pending = 0;
1896 2563
2564 ECB_MEMORY_FENCE;
2565
1897 for (i = EV_NSIG - 1; i--; ) 2566 for (i = EV_NSIG - 1; i--; )
1898 if (expect_false (signals [i].pending)) 2567 if (ecb_expect_false (signals [i].pending))
1899 ev_feed_signal_event (EV_A_ i + 1); 2568 ev_feed_signal_event (EV_A_ i + 1);
1900 } 2569 }
1901#endif 2570#endif
1902 2571
1903#if EV_ASYNC_ENABLE 2572#if EV_ASYNC_ENABLE
1904 if (async_pending) 2573 if (async_pending)
1905 { 2574 {
1906 async_pending = 0; 2575 async_pending = 0;
2576
2577 ECB_MEMORY_FENCE;
1907 2578
1908 for (i = asynccnt; i--; ) 2579 for (i = asynccnt; i--; )
1909 if (asyncs [i]->sent) 2580 if (asyncs [i]->sent)
1910 { 2581 {
1911 asyncs [i]->sent = 0; 2582 asyncs [i]->sent = 0;
2583 ECB_MEMORY_FENCE_RELEASE;
1912 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2584 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1913 } 2585 }
1914 } 2586 }
1915#endif 2587#endif
1916} 2588}
1917 2589
1918/*****************************************************************************/ 2590/*****************************************************************************/
1919 2591
1920void 2592void
1921ev_feed_signal (int signum) 2593ev_feed_signal (int signum) EV_NOEXCEPT
1922{ 2594{
1923#if EV_MULTIPLICITY 2595#if EV_MULTIPLICITY
2596 EV_P;
2597 ECB_MEMORY_FENCE_ACQUIRE;
1924 EV_P = signals [signum - 1].loop; 2598 EV_A = signals [signum - 1].loop;
1925 2599
1926 if (!EV_A) 2600 if (!EV_A)
1927 return; 2601 return;
1928#endif 2602#endif
1929 2603
1930 if (!ev_active (&pipe_w))
1931 return;
1932
1933 signals [signum - 1].pending = 1; 2604 signals [signum - 1].pending = 1;
1934 evpipe_write (EV_A_ &sig_pending); 2605 evpipe_write (EV_A_ &sig_pending);
1935} 2606}
1936 2607
1937static void 2608static void
… …
1942#endif 2613#endif
1943 2614
1944 ev_feed_signal (signum); 2615 ev_feed_signal (signum);
1945} 2616}
1946 2617
1947void noinline 2618ecb_noinline
2619void
1948ev_feed_signal_event (EV_P_ int signum) 2620ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
1949{ 2621{
1950 WL w; 2622 WL w;
1951 2623
1952 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2624 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
1953 return; 2625 return;
1954 2626
1955 --signum; 2627 --signum;
1956 2628
1957#if EV_MULTIPLICITY 2629#if EV_MULTIPLICITY
1958 /* it is permissible to try to feed a signal to the wrong loop */ 2630 /* it is permissible to try to feed a signal to the wrong loop */
1959 /* or, likely more useful, feeding a signal nobody is waiting for */ 2631 /* or, likely more useful, feeding a signal nobody is waiting for */
1960 2632
1961 if (expect_false (signals [signum].loop != EV_A)) 2633 if (ecb_expect_false (signals [signum].loop != EV_A))
1962 return; 2634 return;
1963#endif 2635#endif
1964 2636
1965 signals [signum].pending = 0; 2637 signals [signum].pending = 0;
2638 ECB_MEMORY_FENCE_RELEASE;
1966 2639
1967 for (w = signals [signum].head; w; w = w->next) 2640 for (w = signals [signum].head; w; w = w->next)
1968 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2641 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1969} 2642}
1970 2643
… …
2061# include "ev_kqueue.c" 2734# include "ev_kqueue.c"
2062#endif 2735#endif
2063#if EV_USE_EPOLL 2736#if EV_USE_EPOLL
2064# include "ev_epoll.c" 2737# include "ev_epoll.c"
2065#endif 2738#endif
2739#if EV_USE_LINUXAIO
2740# include "ev_linuxaio.c"
2741#endif
2066#if EV_USE_POLL 2742#if EV_USE_POLL
2067# include "ev_poll.c" 2743# include "ev_poll.c"
2068#endif 2744#endif
2069#if EV_USE_SELECT 2745#if EV_USE_SELECT
2070# include "ev_select.c" 2746# include "ev_select.c"
2071#endif 2747#endif
2072 2748
2073int ecb_cold 2749ecb_cold int
2074ev_version_major (void) 2750ev_version_major (void) EV_NOEXCEPT
2075{ 2751{
2076 return EV_VERSION_MAJOR; 2752 return EV_VERSION_MAJOR;
2077} 2753}
2078 2754
2079int ecb_cold 2755ecb_cold int
2080ev_version_minor (void) 2756ev_version_minor (void) EV_NOEXCEPT
2081{ 2757{
2082 return EV_VERSION_MINOR; 2758 return EV_VERSION_MINOR;
2083} 2759}
2084 2760
2085/* return true if we are running with elevated privileges and should ignore env variables */ 2761/* return true if we are running with elevated privileges and should ignore env variables */
2086int inline_size ecb_cold 2762inline_size ecb_cold int
2087enable_secure (void) 2763enable_secure (void)
2088{ 2764{
2089#ifdef _WIN32 2765#ifdef _WIN32
2090 return 0; 2766 return 0;
2091#else 2767#else
2092 return getuid () != geteuid () 2768 return getuid () != geteuid ()
2093 || getgid () != getegid (); 2769 || getgid () != getegid ();
2094#endif 2770#endif
2095} 2771}
2096 2772
2097unsigned int ecb_cold 2773ecb_cold
2774unsigned int
2098ev_supported_backends (void) 2775ev_supported_backends (void) EV_NOEXCEPT
2099{ 2776{
2100 unsigned int flags = 0; 2777 unsigned int flags = 0;
2101 2778
2102 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2779 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2103 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2780 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2104 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2781 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2782 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2105 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2783 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2106 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2784 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2107 2785
2108 return flags; 2786 return flags;
2109} 2787}
2110 2788
2111unsigned int ecb_cold 2789ecb_cold
2790unsigned int
2112ev_recommended_backends (void) 2791ev_recommended_backends (void) EV_NOEXCEPT
2113{ 2792{
2114 unsigned int flags = ev_supported_backends (); 2793 unsigned int flags = ev_supported_backends ();
2115 2794
2116#ifndef __NetBSD__ 2795#ifndef __NetBSD__
2117 /* kqueue is borked on everything but netbsd apparently */ 2796 /* kqueue is borked on everything but netbsd apparently */
… …
2125#endif 2804#endif
2126#ifdef __FreeBSD__ 2805#ifdef __FreeBSD__
2127 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2806 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2128#endif 2807#endif
2129 2808
2809 /* TODO: linuxaio is very experimental */
2810#if !EV_RECOMMEND_LINUXAIO
2811 flags &= ~EVBACKEND_LINUXAIO;
2812#endif
2813
2130 return flags; 2814 return flags;
2131} 2815}
2132 2816
2133unsigned int ecb_cold 2817ecb_cold
2818unsigned int
2134ev_embeddable_backends (void) 2819ev_embeddable_backends (void) EV_NOEXCEPT
2135{ 2820{
2136 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2821 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2137 2822
2138 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2823 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2139 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2824 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2141 2826
2142 return flags; 2827 return flags;
2143} 2828}
2144 2829
2145unsigned int 2830unsigned int
2146ev_backend (EV_P) 2831ev_backend (EV_P) EV_NOEXCEPT
2147{ 2832{
2148 return backend; 2833 return backend;
2149} 2834}
2150 2835
2151#if EV_FEATURE_API 2836#if EV_FEATURE_API
2152unsigned int 2837unsigned int
2153ev_iteration (EV_P) 2838ev_iteration (EV_P) EV_NOEXCEPT
2154{ 2839{
2155 return loop_count; 2840 return loop_count;
2156} 2841}
2157 2842
2158unsigned int 2843unsigned int
2159ev_depth (EV_P) 2844ev_depth (EV_P) EV_NOEXCEPT
2160{ 2845{
2161 return loop_depth; 2846 return loop_depth;
2162} 2847}
2163 2848
2164void 2849void
2165ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2850ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2166{ 2851{
2167 io_blocktime = interval; 2852 io_blocktime = interval;
2168} 2853}
2169 2854
2170void 2855void
2171ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2856ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2172{ 2857{
2173 timeout_blocktime = interval; 2858 timeout_blocktime = interval;
2174} 2859}
2175 2860
2176void 2861void
2177ev_set_userdata (EV_P_ void *data) 2862ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2178{ 2863{
2179 userdata = data; 2864 userdata = data;
2180} 2865}
2181 2866
2182void * 2867void *
2183ev_userdata (EV_P) 2868ev_userdata (EV_P) EV_NOEXCEPT
2184{ 2869{
2185 return userdata; 2870 return userdata;
2186} 2871}
2187 2872
2188void 2873void
2189ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2874ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2190{ 2875{
2191 invoke_cb = invoke_pending_cb; 2876 invoke_cb = invoke_pending_cb;
2192} 2877}
2193 2878
2194void 2879void
2195ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2880ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2196{ 2881{
2197 release_cb = release; 2882 release_cb = release;
2198 acquire_cb = acquire; 2883 acquire_cb = acquire;
2199} 2884}
2200#endif 2885#endif
2201 2886
2202/* initialise a loop structure, must be zero-initialised */ 2887/* initialise a loop structure, must be zero-initialised */
2203static void noinline ecb_cold 2888ecb_noinline ecb_cold
2889static void
2204loop_init (EV_P_ unsigned int flags) 2890loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2205{ 2891{
2206 if (!backend) 2892 if (!backend)
2207 { 2893 {
2208 origflags = flags; 2894 origflags = flags;
2209 2895
… …
2254#if EV_ASYNC_ENABLE 2940#if EV_ASYNC_ENABLE
2255 async_pending = 0; 2941 async_pending = 0;
2256#endif 2942#endif
2257 pipe_write_skipped = 0; 2943 pipe_write_skipped = 0;
2258 pipe_write_wanted = 0; 2944 pipe_write_wanted = 0;
2945 evpipe [0] = -1;
2946 evpipe [1] = -1;
2259#if EV_USE_INOTIFY 2947#if EV_USE_INOTIFY
2260 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2948 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2261#endif 2949#endif
2262#if EV_USE_SIGNALFD 2950#if EV_USE_SIGNALFD
2263 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2951 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2265 2953
2266 if (!(flags & EVBACKEND_MASK)) 2954 if (!(flags & EVBACKEND_MASK))
2267 flags |= ev_recommended_backends (); 2955 flags |= ev_recommended_backends ();
2268 2956
2269#if EV_USE_IOCP 2957#if EV_USE_IOCP
2270 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 2958 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2271#endif 2959#endif
2272#if EV_USE_PORT 2960#if EV_USE_PORT
2273 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2961 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2274#endif 2962#endif
2275#if EV_USE_KQUEUE 2963#if EV_USE_KQUEUE
2276 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2964 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
2965#endif
2966#if EV_USE_LINUXAIO
2967 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2277#endif 2968#endif
2278#if EV_USE_EPOLL 2969#if EV_USE_EPOLL
2279 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 2970 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2280#endif 2971#endif
2281#if EV_USE_POLL 2972#if EV_USE_POLL
2282 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 2973 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2283#endif 2974#endif
2284#if EV_USE_SELECT 2975#if EV_USE_SELECT
2285 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2976 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2286#endif 2977#endif
2287 2978
2288 ev_prepare_init (&pending_w, pendingcb); 2979 ev_prepare_init (&pending_w, pendingcb);
2289 2980
2290#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2981#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2293#endif 2984#endif
2294 } 2985 }
2295} 2986}
2296 2987
2297/* free up a loop structure */ 2988/* free up a loop structure */
2298void ecb_cold 2989ecb_cold
2990void
2299ev_loop_destroy (EV_P) 2991ev_loop_destroy (EV_P)
2300{ 2992{
2301 int i; 2993 int i;
2302 2994
2303#if EV_MULTIPLICITY 2995#if EV_MULTIPLICITY
… …
2306 return; 2998 return;
2307#endif 2999#endif
2308 3000
2309#if EV_CLEANUP_ENABLE 3001#if EV_CLEANUP_ENABLE
2310 /* queue cleanup watchers (and execute them) */ 3002 /* queue cleanup watchers (and execute them) */
2311 if (expect_false (cleanupcnt)) 3003 if (ecb_expect_false (cleanupcnt))
2312 { 3004 {
2313 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3005 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2314 EV_INVOKE_PENDING; 3006 EV_INVOKE_PENDING;
2315 } 3007 }
2316#endif 3008#endif
2317 3009
2318#if EV_CHILD_ENABLE 3010#if EV_CHILD_ENABLE
2319 if (ev_is_active (&childev)) 3011 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2320 { 3012 {
2321 ev_ref (EV_A); /* child watcher */ 3013 ev_ref (EV_A); /* child watcher */
2322 ev_signal_stop (EV_A_ &childev); 3014 ev_signal_stop (EV_A_ &childev);
2323 } 3015 }
2324#endif 3016#endif
… …
2326 if (ev_is_active (&pipe_w)) 3018 if (ev_is_active (&pipe_w))
2327 { 3019 {
2328 /*ev_ref (EV_A);*/ 3020 /*ev_ref (EV_A);*/
2329 /*ev_io_stop (EV_A_ &pipe_w);*/ 3021 /*ev_io_stop (EV_A_ &pipe_w);*/
2330 3022
2331#if EV_USE_EVENTFD
2332 if (evfd >= 0)
2333 close (evfd);
2334#endif
2335
2336 if (evpipe [0] >= 0)
2337 {
2338 EV_WIN32_CLOSE_FD (evpipe [0]); 3023 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2339 EV_WIN32_CLOSE_FD (evpipe [1]); 3024 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2340 }
2341 } 3025 }
2342 3026
2343#if EV_USE_SIGNALFD 3027#if EV_USE_SIGNALFD
2344 if (ev_is_active (&sigfd_w)) 3028 if (ev_is_active (&sigfd_w))
2345 close (sigfd); 3029 close (sigfd);
… …
2352 3036
2353 if (backend_fd >= 0) 3037 if (backend_fd >= 0)
2354 close (backend_fd); 3038 close (backend_fd);
2355 3039
2356#if EV_USE_IOCP 3040#if EV_USE_IOCP
2357 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3041 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2358#endif 3042#endif
2359#if EV_USE_PORT 3043#if EV_USE_PORT
2360 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3044 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2361#endif 3045#endif
2362#if EV_USE_KQUEUE 3046#if EV_USE_KQUEUE
2363 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3047 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3048#endif
3049#if EV_USE_LINUXAIO
3050 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2364#endif 3051#endif
2365#if EV_USE_EPOLL 3052#if EV_USE_EPOLL
2366 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3053 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2367#endif 3054#endif
2368#if EV_USE_POLL 3055#if EV_USE_POLL
2369 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3056 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2370#endif 3057#endif
2371#if EV_USE_SELECT 3058#if EV_USE_SELECT
2372 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3059 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2373#endif 3060#endif
2374 3061
2375 for (i = NUMPRI; i--; ) 3062 for (i = NUMPRI; i--; )
2376 { 3063 {
2377 array_free (pending, [i]); 3064 array_free (pending, [i]);
… …
2419 3106
2420inline_size void 3107inline_size void
2421loop_fork (EV_P) 3108loop_fork (EV_P)
2422{ 3109{
2423#if EV_USE_PORT 3110#if EV_USE_PORT
2424 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3111 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2425#endif 3112#endif
2426#if EV_USE_KQUEUE 3113#if EV_USE_KQUEUE
2427 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3114 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3115#endif
3116#if EV_USE_LINUXAIO
3117 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2428#endif 3118#endif
2429#if EV_USE_EPOLL 3119#if EV_USE_EPOLL
2430 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3120 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2431#endif 3121#endif
2432#if EV_USE_INOTIFY 3122#if EV_USE_INOTIFY
2433 infy_fork (EV_A); 3123 infy_fork (EV_A);
2434#endif 3124#endif
2435 3125
3126#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2436 if (ev_is_active (&pipe_w)) 3127 if (ev_is_active (&pipe_w) && postfork != 2)
2437 { 3128 {
2438 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3129 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2439 3130
2440 ev_ref (EV_A); 3131 ev_ref (EV_A);
2441 ev_io_stop (EV_A_ &pipe_w); 3132 ev_io_stop (EV_A_ &pipe_w);
2442 3133
2443#if EV_USE_EVENTFD
2444 if (evfd >= 0)
2445 close (evfd);
2446#endif
2447
2448 if (evpipe [0] >= 0) 3134 if (evpipe [0] >= 0)
2449 {
2450 EV_WIN32_CLOSE_FD (evpipe [0]); 3135 EV_WIN32_CLOSE_FD (evpipe [0]);
2451 EV_WIN32_CLOSE_FD (evpipe [1]);
2452 }
2453 3136
2454#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2455 evpipe_init (EV_A); 3137 evpipe_init (EV_A);
2456 /* now iterate over everything, in case we missed something */ 3138 /* iterate over everything, in case we missed something before */
2457 pipecb (EV_A_ &pipe_w, EV_READ); 3139 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2458#endif
2459 } 3140 }
3141#endif
2460 3142
2461 postfork = 0; 3143 postfork = 0;
2462} 3144}
2463 3145
2464#if EV_MULTIPLICITY 3146#if EV_MULTIPLICITY
2465 3147
3148ecb_cold
2466struct ev_loop * ecb_cold 3149struct ev_loop *
2467ev_loop_new (unsigned int flags) 3150ev_loop_new (unsigned int flags) EV_NOEXCEPT
2468{ 3151{
2469 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3152 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2470 3153
2471 memset (EV_A, 0, sizeof (struct ev_loop)); 3154 memset (EV_A, 0, sizeof (struct ev_loop));
2472 loop_init (EV_A_ flags); 3155 loop_init (EV_A_ flags);
… …
2479} 3162}
2480 3163
2481#endif /* multiplicity */ 3164#endif /* multiplicity */
2482 3165
2483#if EV_VERIFY 3166#if EV_VERIFY
2484static void noinline ecb_cold 3167ecb_noinline ecb_cold
3168static void
2485verify_watcher (EV_P_ W w) 3169verify_watcher (EV_P_ W w)
2486{ 3170{
2487 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3171 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2488 3172
2489 if (w->pending) 3173 if (w->pending)
2490 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3174 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2491} 3175}
2492 3176
2493static void noinline ecb_cold 3177ecb_noinline ecb_cold
3178static void
2494verify_heap (EV_P_ ANHE *heap, int N) 3179verify_heap (EV_P_ ANHE *heap, int N)
2495{ 3180{
2496 int i; 3181 int i;
2497 3182
2498 for (i = HEAP0; i < N + HEAP0; ++i) 3183 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2503 3188
2504 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3189 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2505 } 3190 }
2506} 3191}
2507 3192
2508static void noinline ecb_cold 3193ecb_noinline ecb_cold
3194static void
2509array_verify (EV_P_ W *ws, int cnt) 3195array_verify (EV_P_ W *ws, int cnt)
2510{ 3196{
2511 while (cnt--) 3197 while (cnt--)
2512 { 3198 {
2513 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3199 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2516} 3202}
2517#endif 3203#endif
2518 3204
2519#if EV_FEATURE_API 3205#if EV_FEATURE_API
2520void ecb_cold 3206void ecb_cold
2521ev_verify (EV_P) 3207ev_verify (EV_P) EV_NOEXCEPT
2522{ 3208{
2523#if EV_VERIFY 3209#if EV_VERIFY
2524 int i; 3210 int i;
2525 WL w; 3211 WL w, w2;
2526 3212
2527 assert (activecnt >= -1); 3213 assert (activecnt >= -1);
2528 3214
2529 assert (fdchangemax >= fdchangecnt); 3215 assert (fdchangemax >= fdchangecnt);
2530 for (i = 0; i < fdchangecnt; ++i) 3216 for (i = 0; i < fdchangecnt; ++i)
2531 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3217 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2532 3218
2533 assert (anfdmax >= 0); 3219 assert (anfdmax >= 0);
2534 for (i = 0; i < anfdmax; ++i) 3220 for (i = 0; i < anfdmax; ++i)
3221 {
3222 int j = 0;
3223
2535 for (w = anfds [i].head; w; w = w->next) 3224 for (w = w2 = anfds [i].head; w; w = w->next)
2536 { 3225 {
2537 verify_watcher (EV_A_ (W)w); 3226 verify_watcher (EV_A_ (W)w);
3227
3228 if (j++ & 1)
3229 {
3230 assert (("libev: io watcher list contains a loop", w != w2));
3231 w2 = w2->next;
3232 }
3233
2538 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3234 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2539 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3235 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2540 } 3236 }
3237 }
2541 3238
2542 assert (timermax >= timercnt); 3239 assert (timermax >= timercnt);
2543 verify_heap (EV_A_ timers, timercnt); 3240 verify_heap (EV_A_ timers, timercnt);
2544 3241
2545#if EV_PERIODIC_ENABLE 3242#if EV_PERIODIC_ENABLE
… …
2591#endif 3288#endif
2592} 3289}
2593#endif 3290#endif
2594 3291
2595#if EV_MULTIPLICITY 3292#if EV_MULTIPLICITY
3293ecb_cold
2596struct ev_loop * ecb_cold 3294struct ev_loop *
2597#else 3295#else
2598int 3296int
2599#endif 3297#endif
2600ev_default_loop (unsigned int flags) 3298ev_default_loop (unsigned int flags) EV_NOEXCEPT
2601{ 3299{
2602 if (!ev_default_loop_ptr) 3300 if (!ev_default_loop_ptr)
2603 { 3301 {
2604#if EV_MULTIPLICITY 3302#if EV_MULTIPLICITY
2605 EV_P = ev_default_loop_ptr = &default_loop_struct; 3303 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2624 3322
2625 return ev_default_loop_ptr; 3323 return ev_default_loop_ptr;
2626} 3324}
2627 3325
2628void 3326void
2629ev_loop_fork (EV_P) 3327ev_loop_fork (EV_P) EV_NOEXCEPT
2630{ 3328{
2631 postfork = 1; /* must be in line with ev_default_fork */ 3329 postfork = 1;
2632} 3330}
2633 3331
2634/*****************************************************************************/ 3332/*****************************************************************************/
2635 3333
2636void 3334void
… …
2638{ 3336{
2639 EV_CB_INVOKE ((W)w, revents); 3337 EV_CB_INVOKE ((W)w, revents);
2640} 3338}
2641 3339
2642unsigned int 3340unsigned int
2643ev_pending_count (EV_P) 3341ev_pending_count (EV_P) EV_NOEXCEPT
2644{ 3342{
2645 int pri; 3343 int pri;
2646 unsigned int count = 0; 3344 unsigned int count = 0;
2647 3345
2648 for (pri = NUMPRI; pri--; ) 3346 for (pri = NUMPRI; pri--; )
2649 count += pendingcnt [pri]; 3347 count += pendingcnt [pri];
2650 3348
2651 return count; 3349 return count;
2652} 3350}
2653 3351
2654void noinline 3352ecb_noinline
3353void
2655ev_invoke_pending (EV_P) 3354ev_invoke_pending (EV_P)
2656{ 3355{
2657 int pri; 3356 pendingpri = NUMPRI;
2658 3357
2659 for (pri = NUMPRI; pri--; ) 3358 do
3359 {
3360 --pendingpri;
3361
3362 /* pendingpri possibly gets modified in the inner loop */
2660 while (pendingcnt [pri]) 3363 while (pendingcnt [pendingpri])
2661 { 3364 {
2662 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3365 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2663 3366
2664 p->w->pending = 0; 3367 p->w->pending = 0;
2665 EV_CB_INVOKE (p->w, p->events); 3368 EV_CB_INVOKE (p->w, p->events);
2666 EV_FREQUENT_CHECK; 3369 EV_FREQUENT_CHECK;
2667 } 3370 }
3371 }
3372 while (pendingpri);
2668} 3373}
2669 3374
2670#if EV_IDLE_ENABLE 3375#if EV_IDLE_ENABLE
2671/* make idle watchers pending. this handles the "call-idle */ 3376/* make idle watchers pending. this handles the "call-idle */
2672/* only when higher priorities are idle" logic */ 3377/* only when higher priorities are idle" logic */
2673inline_size void 3378inline_size void
2674idle_reify (EV_P) 3379idle_reify (EV_P)
2675{ 3380{
2676 if (expect_false (idleall)) 3381 if (ecb_expect_false (idleall))
2677 { 3382 {
2678 int pri; 3383 int pri;
2679 3384
2680 for (pri = NUMPRI; pri--; ) 3385 for (pri = NUMPRI; pri--; )
2681 { 3386 {
… …
2730 } 3435 }
2731} 3436}
2732 3437
2733#if EV_PERIODIC_ENABLE 3438#if EV_PERIODIC_ENABLE
2734 3439
2735static void noinline 3440ecb_noinline
3441static void
2736periodic_recalc (EV_P_ ev_periodic *w) 3442periodic_recalc (EV_P_ ev_periodic *w)
2737{ 3443{
2738 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3444 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2739 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3445 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2740 3446
… …
2742 while (at <= ev_rt_now) 3448 while (at <= ev_rt_now)
2743 { 3449 {
2744 ev_tstamp nat = at + w->interval; 3450 ev_tstamp nat = at + w->interval;
2745 3451
2746 /* when resolution fails us, we use ev_rt_now */ 3452 /* when resolution fails us, we use ev_rt_now */
2747 if (expect_false (nat == at)) 3453 if (ecb_expect_false (nat == at))
2748 { 3454 {
2749 at = ev_rt_now; 3455 at = ev_rt_now;
2750 break; 3456 break;
2751 } 3457 }
2752 3458
… …
2762{ 3468{
2763 EV_FREQUENT_CHECK; 3469 EV_FREQUENT_CHECK;
2764 3470
2765 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3471 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2766 { 3472 {
2767 int feed_count = 0;
2768
2769 do 3473 do
2770 { 3474 {
2771 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3475 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2772 3476
2773 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3477 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2800 } 3504 }
2801} 3505}
2802 3506
2803/* simply recalculate all periodics */ 3507/* simply recalculate all periodics */
2804/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3508/* TODO: maybe ensure that at least one event happens when jumping forward? */
2805static void noinline ecb_cold 3509ecb_noinline ecb_cold
3510static void
2806periodics_reschedule (EV_P) 3511periodics_reschedule (EV_P)
2807{ 3512{
2808 int i; 3513 int i;
2809 3514
2810 /* adjust periodics after time jump */ 3515 /* adjust periodics after time jump */
… …
2823 reheap (periodics, periodiccnt); 3528 reheap (periodics, periodiccnt);
2824} 3529}
2825#endif 3530#endif
2826 3531
2827/* adjust all timers by a given offset */ 3532/* adjust all timers by a given offset */
2828static void noinline ecb_cold 3533ecb_noinline ecb_cold
3534static void
2829timers_reschedule (EV_P_ ev_tstamp adjust) 3535timers_reschedule (EV_P_ ev_tstamp adjust)
2830{ 3536{
2831 int i; 3537 int i;
2832 3538
2833 for (i = 0; i < timercnt; ++i) 3539 for (i = 0; i < timercnt; ++i)
… …
2842/* also detect if there was a timejump, and act accordingly */ 3548/* also detect if there was a timejump, and act accordingly */
2843inline_speed void 3549inline_speed void
2844time_update (EV_P_ ev_tstamp max_block) 3550time_update (EV_P_ ev_tstamp max_block)
2845{ 3551{
2846#if EV_USE_MONOTONIC 3552#if EV_USE_MONOTONIC
2847 if (expect_true (have_monotonic)) 3553 if (ecb_expect_true (have_monotonic))
2848 { 3554 {
2849 int i; 3555 int i;
2850 ev_tstamp odiff = rtmn_diff; 3556 ev_tstamp odiff = rtmn_diff;
2851 3557
2852 mn_now = get_clock (); 3558 mn_now = get_clock ();
2853 3559
2854 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3560 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
2855 /* interpolate in the meantime */ 3561 /* interpolate in the meantime */
2856 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3562 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
2857 { 3563 {
2858 ev_rt_now = rtmn_diff + mn_now; 3564 ev_rt_now = rtmn_diff + mn_now;
2859 return; 3565 return;
2860 } 3566 }
2861 3567
… …
2875 ev_tstamp diff; 3581 ev_tstamp diff;
2876 rtmn_diff = ev_rt_now - mn_now; 3582 rtmn_diff = ev_rt_now - mn_now;
2877 3583
2878 diff = odiff - rtmn_diff; 3584 diff = odiff - rtmn_diff;
2879 3585
2880 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3586 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2881 return; /* all is well */ 3587 return; /* all is well */
2882 3588
2883 ev_rt_now = ev_time (); 3589 ev_rt_now = ev_time ();
2884 mn_now = get_clock (); 3590 mn_now = get_clock ();
2885 now_floor = mn_now; 3591 now_floor = mn_now;
… …
2894 else 3600 else
2895#endif 3601#endif
2896 { 3602 {
2897 ev_rt_now = ev_time (); 3603 ev_rt_now = ev_time ();
2898 3604
2899 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3605 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
2900 { 3606 {
2901 /* adjust timers. this is easy, as the offset is the same for all of them */ 3607 /* adjust timers. this is easy, as the offset is the same for all of them */
2902 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3608 timers_reschedule (EV_A_ ev_rt_now - mn_now);
2903#if EV_PERIODIC_ENABLE 3609#if EV_PERIODIC_ENABLE
2904 periodics_reschedule (EV_A); 3610 periodics_reschedule (EV_A);
… …
2907 3613
2908 mn_now = ev_rt_now; 3614 mn_now = ev_rt_now;
2909 } 3615 }
2910} 3616}
2911 3617
2912void 3618int
2913ev_run (EV_P_ int flags) 3619ev_run (EV_P_ int flags)
2914{ 3620{
2915#if EV_FEATURE_API 3621#if EV_FEATURE_API
2916 ++loop_depth; 3622 ++loop_depth;
2917#endif 3623#endif
… …
2927#if EV_VERIFY >= 2 3633#if EV_VERIFY >= 2
2928 ev_verify (EV_A); 3634 ev_verify (EV_A);
2929#endif 3635#endif
2930 3636
2931#ifndef _WIN32 3637#ifndef _WIN32
2932 if (expect_false (curpid)) /* penalise the forking check even more */ 3638 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
2933 if (expect_false (getpid () != curpid)) 3639 if (ecb_expect_false (getpid () != curpid))
2934 { 3640 {
2935 curpid = getpid (); 3641 curpid = getpid ();
2936 postfork = 1; 3642 postfork = 1;
2937 } 3643 }
2938#endif 3644#endif
2939 3645
2940#if EV_FORK_ENABLE 3646#if EV_FORK_ENABLE
2941 /* we might have forked, so queue fork handlers */ 3647 /* we might have forked, so queue fork handlers */
2942 if (expect_false (postfork)) 3648 if (ecb_expect_false (postfork))
2943 if (forkcnt) 3649 if (forkcnt)
2944 { 3650 {
2945 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3651 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2946 EV_INVOKE_PENDING; 3652 EV_INVOKE_PENDING;
2947 } 3653 }
2948#endif 3654#endif
2949 3655
2950#if EV_PREPARE_ENABLE 3656#if EV_PREPARE_ENABLE
2951 /* queue prepare watchers (and execute them) */ 3657 /* queue prepare watchers (and execute them) */
2952 if (expect_false (preparecnt)) 3658 if (ecb_expect_false (preparecnt))
2953 { 3659 {
2954 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3660 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2955 EV_INVOKE_PENDING; 3661 EV_INVOKE_PENDING;
2956 } 3662 }
2957#endif 3663#endif
2958 3664
2959 if (expect_false (loop_done)) 3665 if (ecb_expect_false (loop_done))
2960 break; 3666 break;
2961 3667
2962 /* we might have forked, so reify kernel state if necessary */ 3668 /* we might have forked, so reify kernel state if necessary */
2963 if (expect_false (postfork)) 3669 if (ecb_expect_false (postfork))
2964 loop_fork (EV_A); 3670 loop_fork (EV_A);
2965 3671
2966 /* update fd-related kernel structures */ 3672 /* update fd-related kernel structures */
2967 fd_reify (EV_A); 3673 fd_reify (EV_A);
2968 3674
… …
2980 /* from now on, we want a pipe-wake-up */ 3686 /* from now on, we want a pipe-wake-up */
2981 pipe_write_wanted = 1; 3687 pipe_write_wanted = 1;
2982 3688
2983 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3689 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2984 3690
2985 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3691 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2986 { 3692 {
2987 waittime = MAX_BLOCKTIME; 3693 waittime = MAX_BLOCKTIME;
2988 3694
2989 if (timercnt) 3695 if (timercnt)
2990 { 3696 {
… …
2999 if (waittime > to) waittime = to; 3705 if (waittime > to) waittime = to;
3000 } 3706 }
3001#endif 3707#endif
3002 3708
3003 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3709 /* don't let timeouts decrease the waittime below timeout_blocktime */
3004 if (expect_false (waittime < timeout_blocktime)) 3710 if (ecb_expect_false (waittime < timeout_blocktime))
3005 waittime = timeout_blocktime; 3711 waittime = timeout_blocktime;
3006 3712
3007 /* at this point, we NEED to wait, so we have to ensure */ 3713 /* at this point, we NEED to wait, so we have to ensure */
3008 /* to pass a minimum nonzero value to the backend */ 3714 /* to pass a minimum nonzero value to the backend */
3009 if (expect_false (waittime < backend_mintime)) 3715 if (ecb_expect_false (waittime < backend_mintime))
3010 waittime = backend_mintime; 3716 waittime = backend_mintime;
3011 3717
3012 /* extra check because io_blocktime is commonly 0 */ 3718 /* extra check because io_blocktime is commonly 0 */
3013 if (expect_false (io_blocktime)) 3719 if (ecb_expect_false (io_blocktime))
3014 { 3720 {
3015 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3721 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3016 3722
3017 if (sleeptime > waittime - backend_mintime) 3723 if (sleeptime > waittime - backend_mintime)
3018 sleeptime = waittime - backend_mintime; 3724 sleeptime = waittime - backend_mintime;
3019 3725
3020 if (expect_true (sleeptime > 0.)) 3726 if (ecb_expect_true (sleeptime > 0.))
3021 { 3727 {
3022 ev_sleep (sleeptime); 3728 ev_sleep (sleeptime);
3023 waittime -= sleeptime; 3729 waittime -= sleeptime;
3024 } 3730 }
3025 } 3731 }
… …
3032 backend_poll (EV_A_ waittime); 3738 backend_poll (EV_A_ waittime);
3033 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3739 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3034 3740
3035 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3741 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3036 3742
3743 ECB_MEMORY_FENCE_ACQUIRE;
3037 if (pipe_write_skipped) 3744 if (pipe_write_skipped)
3038 { 3745 {
3039 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3746 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3040 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3747 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3041 } 3748 }
3042 3749
3043
3044 /* update ev_rt_now, do magic */ 3750 /* update ev_rt_now, do magic */
3045 time_update (EV_A_ waittime + sleeptime); 3751 time_update (EV_A_ waittime + sleeptime);
3046 } 3752 }
3047 3753
3048 /* queue pending timers and reschedule them */ 3754 /* queue pending timers and reschedule them */
… …
3056 idle_reify (EV_A); 3762 idle_reify (EV_A);
3057#endif 3763#endif
3058 3764
3059#if EV_CHECK_ENABLE 3765#if EV_CHECK_ENABLE
3060 /* queue check watchers, to be executed first */ 3766 /* queue check watchers, to be executed first */
3061 if (expect_false (checkcnt)) 3767 if (ecb_expect_false (checkcnt))
3062 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3768 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3063#endif 3769#endif
3064 3770
3065 EV_INVOKE_PENDING; 3771 EV_INVOKE_PENDING;
3066 } 3772 }
3067 while (expect_true ( 3773 while (ecb_expect_true (
3068 activecnt 3774 activecnt
3069 && !loop_done 3775 && !loop_done
3070 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3776 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3071 )); 3777 ));
3072 3778
… …
3074 loop_done = EVBREAK_CANCEL; 3780 loop_done = EVBREAK_CANCEL;
3075 3781
3076#if EV_FEATURE_API 3782#if EV_FEATURE_API
3077 --loop_depth; 3783 --loop_depth;
3078#endif 3784#endif
3079}
3080 3785
3786 return activecnt;
3787}
3788
3081void 3789void
3082ev_break (EV_P_ int how) 3790ev_break (EV_P_ int how) EV_NOEXCEPT
3083{ 3791{
3084 loop_done = how; 3792 loop_done = how;
3085} 3793}
3086 3794
3087void 3795void
3088ev_ref (EV_P) 3796ev_ref (EV_P) EV_NOEXCEPT
3089{ 3797{
3090 ++activecnt; 3798 ++activecnt;
3091} 3799}
3092 3800
3093void 3801void
3094ev_unref (EV_P) 3802ev_unref (EV_P) EV_NOEXCEPT
3095{ 3803{
3096 --activecnt; 3804 --activecnt;
3097} 3805}
3098 3806
3099void 3807void
3100ev_now_update (EV_P) 3808ev_now_update (EV_P) EV_NOEXCEPT
3101{ 3809{
3102 time_update (EV_A_ 1e100); 3810 time_update (EV_A_ 1e100);
3103} 3811}
3104 3812
3105void 3813void
3106ev_suspend (EV_P) 3814ev_suspend (EV_P) EV_NOEXCEPT
3107{ 3815{
3108 ev_now_update (EV_A); 3816 ev_now_update (EV_A);
3109} 3817}
3110 3818
3111void 3819void
3112ev_resume (EV_P) 3820ev_resume (EV_P) EV_NOEXCEPT
3113{ 3821{
3114 ev_tstamp mn_prev = mn_now; 3822 ev_tstamp mn_prev = mn_now;
3115 3823
3116 ev_now_update (EV_A); 3824 ev_now_update (EV_A);
3117 timers_reschedule (EV_A_ mn_now - mn_prev); 3825 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3134inline_size void 3842inline_size void
3135wlist_del (WL *head, WL elem) 3843wlist_del (WL *head, WL elem)
3136{ 3844{
3137 while (*head) 3845 while (*head)
3138 { 3846 {
3139 if (expect_true (*head == elem)) 3847 if (ecb_expect_true (*head == elem))
3140 { 3848 {
3141 *head = elem->next; 3849 *head = elem->next;
3142 break; 3850 break;
3143 } 3851 }
3144 3852
… …
3156 w->pending = 0; 3864 w->pending = 0;
3157 } 3865 }
3158} 3866}
3159 3867
3160int 3868int
3161ev_clear_pending (EV_P_ void *w) 3869ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3162{ 3870{
3163 W w_ = (W)w; 3871 W w_ = (W)w;
3164 int pending = w_->pending; 3872 int pending = w_->pending;
3165 3873
3166 if (expect_true (pending)) 3874 if (ecb_expect_true (pending))
3167 { 3875 {
3168 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 3876 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3169 p->w = (W)&pending_w; 3877 p->w = (W)&pending_w;
3170 w_->pending = 0; 3878 w_->pending = 0;
3171 return p->events; 3879 return p->events;
… …
3198 w->active = 0; 3906 w->active = 0;
3199} 3907}
3200 3908
3201/*****************************************************************************/ 3909/*****************************************************************************/
3202 3910
3203void noinline 3911ecb_noinline
3912void
3204ev_io_start (EV_P_ ev_io *w) 3913ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3205{ 3914{
3206 int fd = w->fd; 3915 int fd = w->fd;
3207 3916
3208 if (expect_false (ev_is_active (w))) 3917 if (ecb_expect_false (ev_is_active (w)))
3209 return; 3918 return;
3210 3919
3211 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3920 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3212 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 3921 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3213 3922
3923#if EV_VERIFY >= 2
3924 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
3925#endif
3214 EV_FREQUENT_CHECK; 3926 EV_FREQUENT_CHECK;
3215 3927
3216 ev_start (EV_A_ (W)w, 1); 3928 ev_start (EV_A_ (W)w, 1);
3217 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3929 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3218 wlist_add (&anfds[fd].head, (WL)w); 3930 wlist_add (&anfds[fd].head, (WL)w);
3931
3932 /* common bug, apparently */
3933 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3219 3934
3220 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3935 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3221 w->events &= ~EV__IOFDSET; 3936 w->events &= ~EV__IOFDSET;
3222 3937
3223 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
3224} 3939}
3225 3940
3226void noinline 3941ecb_noinline
3942void
3227ev_io_stop (EV_P_ ev_io *w) 3943ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3228{ 3944{
3229 clear_pending (EV_A_ (W)w); 3945 clear_pending (EV_A_ (W)w);
3230 if (expect_false (!ev_is_active (w))) 3946 if (ecb_expect_false (!ev_is_active (w)))
3231 return; 3947 return;
3232 3948
3233 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 3949 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3234 3950
3951#if EV_VERIFY >= 2
3952 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
3953#endif
3235 EV_FREQUENT_CHECK; 3954 EV_FREQUENT_CHECK;
3236 3955
3237 wlist_del (&anfds[w->fd].head, (WL)w); 3956 wlist_del (&anfds[w->fd].head, (WL)w);
3238 ev_stop (EV_A_ (W)w); 3957 ev_stop (EV_A_ (W)w);
3239 3958
3240 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3959 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3241 3960
3242 EV_FREQUENT_CHECK; 3961 EV_FREQUENT_CHECK;
3243} 3962}
3244 3963
3245void noinline 3964ecb_noinline
3965void
3246ev_timer_start (EV_P_ ev_timer *w) 3966ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3247{ 3967{
3248 if (expect_false (ev_is_active (w))) 3968 if (ecb_expect_false (ev_is_active (w)))
3249 return; 3969 return;
3250 3970
3251 ev_at (w) += mn_now; 3971 ev_at (w) += mn_now;
3252 3972
3253 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 3973 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3254 3974
3255 EV_FREQUENT_CHECK; 3975 EV_FREQUENT_CHECK;
3256 3976
3257 ++timercnt; 3977 ++timercnt;
3258 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 3978 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3259 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 3979 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3260 ANHE_w (timers [ev_active (w)]) = (WT)w; 3980 ANHE_w (timers [ev_active (w)]) = (WT)w;
3261 ANHE_at_cache (timers [ev_active (w)]); 3981 ANHE_at_cache (timers [ev_active (w)]);
3262 upheap (timers, ev_active (w)); 3982 upheap (timers, ev_active (w));
3263 3983
3264 EV_FREQUENT_CHECK; 3984 EV_FREQUENT_CHECK;
3265 3985
3266 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3986 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3267} 3987}
3268 3988
3269void noinline 3989ecb_noinline
3990void
3270ev_timer_stop (EV_P_ ev_timer *w) 3991ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3271{ 3992{
3272 clear_pending (EV_A_ (W)w); 3993 clear_pending (EV_A_ (W)w);
3273 if (expect_false (!ev_is_active (w))) 3994 if (ecb_expect_false (!ev_is_active (w)))
3274 return; 3995 return;
3275 3996
3276 EV_FREQUENT_CHECK; 3997 EV_FREQUENT_CHECK;
3277 3998
3278 { 3999 {
… …
3280 4001
3281 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4002 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3282 4003
3283 --timercnt; 4004 --timercnt;
3284 4005
3285 if (expect_true (active < timercnt + HEAP0)) 4006 if (ecb_expect_true (active < timercnt + HEAP0))
3286 { 4007 {
3287 timers [active] = timers [timercnt + HEAP0]; 4008 timers [active] = timers [timercnt + HEAP0];
3288 adjustheap (timers, timercnt, active); 4009 adjustheap (timers, timercnt, active);
3289 } 4010 }
3290 } 4011 }
… …
3294 ev_stop (EV_A_ (W)w); 4015 ev_stop (EV_A_ (W)w);
3295 4016
3296 EV_FREQUENT_CHECK; 4017 EV_FREQUENT_CHECK;
3297} 4018}
3298 4019
3299void noinline 4020ecb_noinline
4021void
3300ev_timer_again (EV_P_ ev_timer *w) 4022ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3301{ 4023{
3302 EV_FREQUENT_CHECK; 4024 EV_FREQUENT_CHECK;
3303 4025
3304 clear_pending (EV_A_ w); 4026 clear_pending (EV_A_ (W)w);
3305 4027
3306 if (ev_is_active (w)) 4028 if (ev_is_active (w))
3307 { 4029 {
3308 if (w->repeat) 4030 if (w->repeat)
3309 { 4031 {
… …
3322 4044
3323 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
3324} 4046}
3325 4047
3326ev_tstamp 4048ev_tstamp
3327ev_timer_remaining (EV_P_ ev_timer *w) 4049ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3328{ 4050{
3329 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4051 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3330} 4052}
3331 4053
3332#if EV_PERIODIC_ENABLE 4054#if EV_PERIODIC_ENABLE
3333void noinline 4055ecb_noinline
4056void
3334ev_periodic_start (EV_P_ ev_periodic *w) 4057ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3335{ 4058{
3336 if (expect_false (ev_is_active (w))) 4059 if (ecb_expect_false (ev_is_active (w)))
3337 return; 4060 return;
3338 4061
3339 if (w->reschedule_cb) 4062 if (w->reschedule_cb)
3340 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4063 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3341 else if (w->interval) 4064 else if (w->interval)
… …
3348 4071
3349 EV_FREQUENT_CHECK; 4072 EV_FREQUENT_CHECK;
3350 4073
3351 ++periodiccnt; 4074 ++periodiccnt;
3352 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4075 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3353 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4076 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3354 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4077 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3355 ANHE_at_cache (periodics [ev_active (w)]); 4078 ANHE_at_cache (periodics [ev_active (w)]);
3356 upheap (periodics, ev_active (w)); 4079 upheap (periodics, ev_active (w));
3357 4080
3358 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3359 4082
3360 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4083 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3361} 4084}
3362 4085
3363void noinline 4086ecb_noinline
4087void
3364ev_periodic_stop (EV_P_ ev_periodic *w) 4088ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3365{ 4089{
3366 clear_pending (EV_A_ (W)w); 4090 clear_pending (EV_A_ (W)w);
3367 if (expect_false (!ev_is_active (w))) 4091 if (ecb_expect_false (!ev_is_active (w)))
3368 return; 4092 return;
3369 4093
3370 EV_FREQUENT_CHECK; 4094 EV_FREQUENT_CHECK;
3371 4095
3372 { 4096 {
… …
3374 4098
3375 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4099 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3376 4100
3377 --periodiccnt; 4101 --periodiccnt;
3378 4102
3379 if (expect_true (active < periodiccnt + HEAP0)) 4103 if (ecb_expect_true (active < periodiccnt + HEAP0))
3380 { 4104 {
3381 periodics [active] = periodics [periodiccnt + HEAP0]; 4105 periodics [active] = periodics [periodiccnt + HEAP0];
3382 adjustheap (periodics, periodiccnt, active); 4106 adjustheap (periodics, periodiccnt, active);
3383 } 4107 }
3384 } 4108 }
… …
3386 ev_stop (EV_A_ (W)w); 4110 ev_stop (EV_A_ (W)w);
3387 4111
3388 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3389} 4113}
3390 4114
3391void noinline 4115ecb_noinline
4116void
3392ev_periodic_again (EV_P_ ev_periodic *w) 4117ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3393{ 4118{
3394 /* TODO: use adjustheap and recalculation */ 4119 /* TODO: use adjustheap and recalculation */
3395 ev_periodic_stop (EV_A_ w); 4120 ev_periodic_stop (EV_A_ w);
3396 ev_periodic_start (EV_A_ w); 4121 ev_periodic_start (EV_A_ w);
3397} 4122}
… …
3401# define SA_RESTART 0 4126# define SA_RESTART 0
3402#endif 4127#endif
3403 4128
3404#if EV_SIGNAL_ENABLE 4129#if EV_SIGNAL_ENABLE
3405 4130
3406void noinline 4131ecb_noinline
4132void
3407ev_signal_start (EV_P_ ev_signal *w) 4133ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3408{ 4134{
3409 if (expect_false (ev_is_active (w))) 4135 if (ecb_expect_false (ev_is_active (w)))
3410 return; 4136 return;
3411 4137
3412 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4138 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3413 4139
3414#if EV_MULTIPLICITY 4140#if EV_MULTIPLICITY
3415 assert (("libev: a signal must not be attached to two different loops", 4141 assert (("libev: a signal must not be attached to two different loops",
3416 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4142 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3417 4143
3418 signals [w->signum - 1].loop = EV_A; 4144 signals [w->signum - 1].loop = EV_A;
4145 ECB_MEMORY_FENCE_RELEASE;
3419#endif 4146#endif
3420 4147
3421 EV_FREQUENT_CHECK; 4148 EV_FREQUENT_CHECK;
3422 4149
3423#if EV_USE_SIGNALFD 4150#if EV_USE_SIGNALFD
… …
3482 } 4209 }
3483 4210
3484 EV_FREQUENT_CHECK; 4211 EV_FREQUENT_CHECK;
3485} 4212}
3486 4213
3487void noinline 4214ecb_noinline
4215void
3488ev_signal_stop (EV_P_ ev_signal *w) 4216ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3489{ 4217{
3490 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3491 if (expect_false (!ev_is_active (w))) 4219 if (ecb_expect_false (!ev_is_active (w)))
3492 return; 4220 return;
3493 4221
3494 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3495 4223
3496 wlist_del (&signals [w->signum - 1].head, (WL)w); 4224 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3524#endif 4252#endif
3525 4253
3526#if EV_CHILD_ENABLE 4254#if EV_CHILD_ENABLE
3527 4255
3528void 4256void
3529ev_child_start (EV_P_ ev_child *w) 4257ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3530{ 4258{
3531#if EV_MULTIPLICITY 4259#if EV_MULTIPLICITY
3532 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4260 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3533#endif 4261#endif
3534 if (expect_false (ev_is_active (w))) 4262 if (ecb_expect_false (ev_is_active (w)))
3535 return; 4263 return;
3536 4264
3537 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
3538 4266
3539 ev_start (EV_A_ (W)w, 1); 4267 ev_start (EV_A_ (W)w, 1);
… …
3541 4269
3542 EV_FREQUENT_CHECK; 4270 EV_FREQUENT_CHECK;
3543} 4271}
3544 4272
3545void 4273void
3546ev_child_stop (EV_P_ ev_child *w) 4274ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3547{ 4275{
3548 clear_pending (EV_A_ (W)w); 4276 clear_pending (EV_A_ (W)w);
3549 if (expect_false (!ev_is_active (w))) 4277 if (ecb_expect_false (!ev_is_active (w)))
3550 return; 4278 return;
3551 4279
3552 EV_FREQUENT_CHECK; 4280 EV_FREQUENT_CHECK;
3553 4281
3554 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4282 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3568 4296
3569#define DEF_STAT_INTERVAL 5.0074891 4297#define DEF_STAT_INTERVAL 5.0074891
3570#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4298#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3571#define MIN_STAT_INTERVAL 0.1074891 4299#define MIN_STAT_INTERVAL 0.1074891
3572 4300
3573static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4301ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3574 4302
3575#if EV_USE_INOTIFY 4303#if EV_USE_INOTIFY
3576 4304
3577/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4305/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3578# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4306# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3579 4307
3580static void noinline 4308ecb_noinline
4309static void
3581infy_add (EV_P_ ev_stat *w) 4310infy_add (EV_P_ ev_stat *w)
3582{ 4311{
3583 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); 4312 w->wd = inotify_add_watch (fs_fd, w->path,
4313 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4314 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4315 | IN_DONT_FOLLOW | IN_MASK_ADD);
3584 4316
3585 if (w->wd >= 0) 4317 if (w->wd >= 0)
3586 { 4318 {
3587 struct statfs sfs; 4319 struct statfs sfs;
3588 4320
… …
3592 4324
3593 if (!fs_2625) 4325 if (!fs_2625)
3594 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4326 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3595 else if (!statfs (w->path, &sfs) 4327 else if (!statfs (w->path, &sfs)
3596 && (sfs.f_type == 0x1373 /* devfs */ 4328 && (sfs.f_type == 0x1373 /* devfs */
4329 || sfs.f_type == 0x4006 /* fat */
4330 || sfs.f_type == 0x4d44 /* msdos */
3597 || sfs.f_type == 0xEF53 /* ext2/3 */ 4331 || sfs.f_type == 0xEF53 /* ext2/3 */
4332 || sfs.f_type == 0x72b6 /* jffs2 */
4333 || sfs.f_type == 0x858458f6 /* ramfs */
4334 || sfs.f_type == 0x5346544e /* ntfs */
3598 || sfs.f_type == 0x3153464a /* jfs */ 4335 || sfs.f_type == 0x3153464a /* jfs */
4336 || sfs.f_type == 0x9123683e /* btrfs */
3599 || sfs.f_type == 0x52654973 /* reiser3 */ 4337 || sfs.f_type == 0x52654973 /* reiser3 */
3600 || sfs.f_type == 0x01021994 /* tempfs */ 4338 || sfs.f_type == 0x01021994 /* tmpfs */
3601 || sfs.f_type == 0x58465342 /* xfs */)) 4339 || sfs.f_type == 0x58465342 /* xfs */))
3602 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4340 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3603 else 4341 else
3604 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4342 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3605 } 4343 }
… …
3640 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4378 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3641 ev_timer_again (EV_A_ &w->timer); 4379 ev_timer_again (EV_A_ &w->timer);
3642 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4380 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3643} 4381}
3644 4382
3645static void noinline 4383ecb_noinline
4384static void
3646infy_del (EV_P_ ev_stat *w) 4385infy_del (EV_P_ ev_stat *w)
3647{ 4386{
3648 int slot; 4387 int slot;
3649 int wd = w->wd; 4388 int wd = w->wd;
3650 4389
… …
3657 4396
3658 /* remove this watcher, if others are watching it, they will rearm */ 4397 /* remove this watcher, if others are watching it, they will rearm */
3659 inotify_rm_watch (fs_fd, wd); 4398 inotify_rm_watch (fs_fd, wd);
3660} 4399}
3661 4400
3662static void noinline 4401ecb_noinline
4402static void
3663infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4403infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3664{ 4404{
3665 if (slot < 0) 4405 if (slot < 0)
3666 /* overflow, need to check for all hash slots */ 4406 /* overflow, need to check for all hash slots */
3667 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4407 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3703 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4443 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3704 ofs += sizeof (struct inotify_event) + ev->len; 4444 ofs += sizeof (struct inotify_event) + ev->len;
3705 } 4445 }
3706} 4446}
3707 4447
3708inline_size void ecb_cold 4448inline_size ecb_cold
4449void
3709ev_check_2625 (EV_P) 4450ev_check_2625 (EV_P)
3710{ 4451{
3711 /* kernels < 2.6.25 are borked 4452 /* kernels < 2.6.25 are borked
3712 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4453 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3713 */ 4454 */
… …
3718} 4459}
3719 4460
3720inline_size int 4461inline_size int
3721infy_newfd (void) 4462infy_newfd (void)
3722{ 4463{
3723#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4464#if defined IN_CLOEXEC && defined IN_NONBLOCK
3724 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4465 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3725 if (fd >= 0) 4466 if (fd >= 0)
3726 return fd; 4467 return fd;
3727#endif 4468#endif
3728 return inotify_init (); 4469 return inotify_init ();
… …
3803#else 4544#else
3804# define EV_LSTAT(p,b) lstat (p, b) 4545# define EV_LSTAT(p,b) lstat (p, b)
3805#endif 4546#endif
3806 4547
3807void 4548void
3808ev_stat_stat (EV_P_ ev_stat *w) 4549ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3809{ 4550{
3810 if (lstat (w->path, &w->attr) < 0) 4551 if (lstat (w->path, &w->attr) < 0)
3811 w->attr.st_nlink = 0; 4552 w->attr.st_nlink = 0;
3812 else if (!w->attr.st_nlink) 4553 else if (!w->attr.st_nlink)
3813 w->attr.st_nlink = 1; 4554 w->attr.st_nlink = 1;
3814} 4555}
3815 4556
3816static void noinline 4557ecb_noinline
4558static void
3817stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4559stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3818{ 4560{
3819 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4561 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3820 4562
3821 ev_statdata prev = w->attr; 4563 ev_statdata prev = w->attr;
… …
3852 ev_feed_event (EV_A_ w, EV_STAT); 4594 ev_feed_event (EV_A_ w, EV_STAT);
3853 } 4595 }
3854} 4596}
3855 4597
3856void 4598void
3857ev_stat_start (EV_P_ ev_stat *w) 4599ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3858{ 4600{
3859 if (expect_false (ev_is_active (w))) 4601 if (ecb_expect_false (ev_is_active (w)))
3860 return; 4602 return;
3861 4603
3862 ev_stat_stat (EV_A_ w); 4604 ev_stat_stat (EV_A_ w);
3863 4605
3864 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4606 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
3883 4625
3884 EV_FREQUENT_CHECK; 4626 EV_FREQUENT_CHECK;
3885} 4627}
3886 4628
3887void 4629void
3888ev_stat_stop (EV_P_ ev_stat *w) 4630ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
3889{ 4631{
3890 clear_pending (EV_A_ (W)w); 4632 clear_pending (EV_A_ (W)w);
3891 if (expect_false (!ev_is_active (w))) 4633 if (ecb_expect_false (!ev_is_active (w)))
3892 return; 4634 return;
3893 4635
3894 EV_FREQUENT_CHECK; 4636 EV_FREQUENT_CHECK;
3895 4637
3896#if EV_USE_INOTIFY 4638#if EV_USE_INOTIFY
… …
3909} 4651}
3910#endif 4652#endif
3911 4653
3912#if EV_IDLE_ENABLE 4654#if EV_IDLE_ENABLE
3913void 4655void
3914ev_idle_start (EV_P_ ev_idle *w) 4656ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
3915{ 4657{
3916 if (expect_false (ev_is_active (w))) 4658 if (ecb_expect_false (ev_is_active (w)))
3917 return; 4659 return;
3918 4660
3919 pri_adjust (EV_A_ (W)w); 4661 pri_adjust (EV_A_ (W)w);
3920 4662
3921 EV_FREQUENT_CHECK; 4663 EV_FREQUENT_CHECK;
… …
3924 int active = ++idlecnt [ABSPRI (w)]; 4666 int active = ++idlecnt [ABSPRI (w)];
3925 4667
3926 ++idleall; 4668 ++idleall;
3927 ev_start (EV_A_ (W)w, active); 4669 ev_start (EV_A_ (W)w, active);
3928 4670
3929 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4671 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
3930 idles [ABSPRI (w)][active - 1] = w; 4672 idles [ABSPRI (w)][active - 1] = w;
3931 } 4673 }
3932 4674
3933 EV_FREQUENT_CHECK; 4675 EV_FREQUENT_CHECK;
3934} 4676}
3935 4677
3936void 4678void
3937ev_idle_stop (EV_P_ ev_idle *w) 4679ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
3938{ 4680{
3939 clear_pending (EV_A_ (W)w); 4681 clear_pending (EV_A_ (W)w);
3940 if (expect_false (!ev_is_active (w))) 4682 if (ecb_expect_false (!ev_is_active (w)))
3941 return; 4683 return;
3942 4684
3943 EV_FREQUENT_CHECK; 4685 EV_FREQUENT_CHECK;
3944 4686
3945 { 4687 {
… …
3956} 4698}
3957#endif 4699#endif
3958 4700
3959#if EV_PREPARE_ENABLE 4701#if EV_PREPARE_ENABLE
3960void 4702void
3961ev_prepare_start (EV_P_ ev_prepare *w) 4703ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
3962{ 4704{
3963 if (expect_false (ev_is_active (w))) 4705 if (ecb_expect_false (ev_is_active (w)))
3964 return; 4706 return;
3965 4707
3966 EV_FREQUENT_CHECK; 4708 EV_FREQUENT_CHECK;
3967 4709
3968 ev_start (EV_A_ (W)w, ++preparecnt); 4710 ev_start (EV_A_ (W)w, ++preparecnt);
3969 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4711 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
3970 prepares [preparecnt - 1] = w; 4712 prepares [preparecnt - 1] = w;
3971 4713
3972 EV_FREQUENT_CHECK; 4714 EV_FREQUENT_CHECK;
3973} 4715}
3974 4716
3975void 4717void
3976ev_prepare_stop (EV_P_ ev_prepare *w) 4718ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
3977{ 4719{
3978 clear_pending (EV_A_ (W)w); 4720 clear_pending (EV_A_ (W)w);
3979 if (expect_false (!ev_is_active (w))) 4721 if (ecb_expect_false (!ev_is_active (w)))
3980 return; 4722 return;
3981 4723
3982 EV_FREQUENT_CHECK; 4724 EV_FREQUENT_CHECK;
3983 4725
3984 { 4726 {
… …
3994} 4736}
3995#endif 4737#endif
3996 4738
3997#if EV_CHECK_ENABLE 4739#if EV_CHECK_ENABLE
3998void 4740void
3999ev_check_start (EV_P_ ev_check *w) 4741ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4000{ 4742{
4001 if (expect_false (ev_is_active (w))) 4743 if (ecb_expect_false (ev_is_active (w)))
4002 return; 4744 return;
4003 4745
4004 EV_FREQUENT_CHECK; 4746 EV_FREQUENT_CHECK;
4005 4747
4006 ev_start (EV_A_ (W)w, ++checkcnt); 4748 ev_start (EV_A_ (W)w, ++checkcnt);
4007 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4749 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4008 checks [checkcnt - 1] = w; 4750 checks [checkcnt - 1] = w;
4009 4751
4010 EV_FREQUENT_CHECK; 4752 EV_FREQUENT_CHECK;
4011} 4753}
4012 4754
4013void 4755void
4014ev_check_stop (EV_P_ ev_check *w) 4756ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4015{ 4757{
4016 clear_pending (EV_A_ (W)w); 4758 clear_pending (EV_A_ (W)w);
4017 if (expect_false (!ev_is_active (w))) 4759 if (ecb_expect_false (!ev_is_active (w)))
4018 return; 4760 return;
4019 4761
4020 EV_FREQUENT_CHECK; 4762 EV_FREQUENT_CHECK;
4021 4763
4022 { 4764 {
… …
4031 EV_FREQUENT_CHECK; 4773 EV_FREQUENT_CHECK;
4032} 4774}
4033#endif 4775#endif
4034 4776
4035#if EV_EMBED_ENABLE 4777#if EV_EMBED_ENABLE
4036void noinline 4778ecb_noinline
4779void
4037ev_embed_sweep (EV_P_ ev_embed *w) 4780ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4038{ 4781{
4039 ev_run (w->other, EVRUN_NOWAIT); 4782 ev_run (w->other, EVRUN_NOWAIT);
4040} 4783}
4041 4784
4042static void 4785static void
… …
4090 ev_idle_stop (EV_A_ idle); 4833 ev_idle_stop (EV_A_ idle);
4091} 4834}
4092#endif 4835#endif
4093 4836
4094void 4837void
4095ev_embed_start (EV_P_ ev_embed *w) 4838ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4096{ 4839{
4097 if (expect_false (ev_is_active (w))) 4840 if (ecb_expect_false (ev_is_active (w)))
4098 return; 4841 return;
4099 4842
4100 { 4843 {
4101 EV_P = w->other; 4844 EV_P = w->other;
4102 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4845 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4121 4864
4122 EV_FREQUENT_CHECK; 4865 EV_FREQUENT_CHECK;
4123} 4866}
4124 4867
4125void 4868void
4126ev_embed_stop (EV_P_ ev_embed *w) 4869ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4127{ 4870{
4128 clear_pending (EV_A_ (W)w); 4871 clear_pending (EV_A_ (W)w);
4129 if (expect_false (!ev_is_active (w))) 4872 if (ecb_expect_false (!ev_is_active (w)))
4130 return; 4873 return;
4131 4874
4132 EV_FREQUENT_CHECK; 4875 EV_FREQUENT_CHECK;
4133 4876
4134 ev_io_stop (EV_A_ &w->io); 4877 ev_io_stop (EV_A_ &w->io);
… …
4141} 4884}
4142#endif 4885#endif
4143 4886
4144#if EV_FORK_ENABLE 4887#if EV_FORK_ENABLE
4145void 4888void
4146ev_fork_start (EV_P_ ev_fork *w) 4889ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4147{ 4890{
4148 if (expect_false (ev_is_active (w))) 4891 if (ecb_expect_false (ev_is_active (w)))
4149 return; 4892 return;
4150 4893
4151 EV_FREQUENT_CHECK; 4894 EV_FREQUENT_CHECK;
4152 4895
4153 ev_start (EV_A_ (W)w, ++forkcnt); 4896 ev_start (EV_A_ (W)w, ++forkcnt);
4154 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 4897 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4155 forks [forkcnt - 1] = w; 4898 forks [forkcnt - 1] = w;
4156 4899
4157 EV_FREQUENT_CHECK; 4900 EV_FREQUENT_CHECK;
4158} 4901}
4159 4902
4160void 4903void
4161ev_fork_stop (EV_P_ ev_fork *w) 4904ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4162{ 4905{
4163 clear_pending (EV_A_ (W)w); 4906 clear_pending (EV_A_ (W)w);
4164 if (expect_false (!ev_is_active (w))) 4907 if (ecb_expect_false (!ev_is_active (w)))
4165 return; 4908 return;
4166 4909
4167 EV_FREQUENT_CHECK; 4910 EV_FREQUENT_CHECK;
4168 4911
4169 { 4912 {
… …
4179} 4922}
4180#endif 4923#endif
4181 4924
4182#if EV_CLEANUP_ENABLE 4925#if EV_CLEANUP_ENABLE
4183void 4926void
4184ev_cleanup_start (EV_P_ ev_cleanup *w) 4927ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4185{ 4928{
4186 if (expect_false (ev_is_active (w))) 4929 if (ecb_expect_false (ev_is_active (w)))
4187 return; 4930 return;
4188 4931
4189 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
4190 4933
4191 ev_start (EV_A_ (W)w, ++cleanupcnt); 4934 ev_start (EV_A_ (W)w, ++cleanupcnt);
4192 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 4935 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4193 cleanups [cleanupcnt - 1] = w; 4936 cleanups [cleanupcnt - 1] = w;
4194 4937
4195 /* cleanup watchers should never keep a refcount on the loop */ 4938 /* cleanup watchers should never keep a refcount on the loop */
4196 ev_unref (EV_A); 4939 ev_unref (EV_A);
4197 EV_FREQUENT_CHECK; 4940 EV_FREQUENT_CHECK;
4198} 4941}
4199 4942
4200void 4943void
4201ev_cleanup_stop (EV_P_ ev_cleanup *w) 4944ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4202{ 4945{
4203 clear_pending (EV_A_ (W)w); 4946 clear_pending (EV_A_ (W)w);
4204 if (expect_false (!ev_is_active (w))) 4947 if (ecb_expect_false (!ev_is_active (w)))
4205 return; 4948 return;
4206 4949
4207 EV_FREQUENT_CHECK; 4950 EV_FREQUENT_CHECK;
4208 ev_ref (EV_A); 4951 ev_ref (EV_A);
4209 4952
… …
4220} 4963}
4221#endif 4964#endif
4222 4965
4223#if EV_ASYNC_ENABLE 4966#if EV_ASYNC_ENABLE
4224void 4967void
4225ev_async_start (EV_P_ ev_async *w) 4968ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4226{ 4969{
4227 if (expect_false (ev_is_active (w))) 4970 if (ecb_expect_false (ev_is_active (w)))
4228 return; 4971 return;
4229 4972
4230 w->sent = 0; 4973 w->sent = 0;
4231 4974
4232 evpipe_init (EV_A); 4975 evpipe_init (EV_A);
4233 4976
4234 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
4235 4978
4236 ev_start (EV_A_ (W)w, ++asynccnt); 4979 ev_start (EV_A_ (W)w, ++asynccnt);
4237 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 4980 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4238 asyncs [asynccnt - 1] = w; 4981 asyncs [asynccnt - 1] = w;
4239 4982
4240 EV_FREQUENT_CHECK; 4983 EV_FREQUENT_CHECK;
4241} 4984}
4242 4985
4243void 4986void
4244ev_async_stop (EV_P_ ev_async *w) 4987ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4245{ 4988{
4246 clear_pending (EV_A_ (W)w); 4989 clear_pending (EV_A_ (W)w);
4247 if (expect_false (!ev_is_active (w))) 4990 if (ecb_expect_false (!ev_is_active (w)))
4248 return; 4991 return;
4249 4992
4250 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4251 4994
4252 { 4995 {
… …
4260 5003
4261 EV_FREQUENT_CHECK; 5004 EV_FREQUENT_CHECK;
4262} 5005}
4263 5006
4264void 5007void
4265ev_async_send (EV_P_ ev_async *w) 5008ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4266{ 5009{
4267 w->sent = 1; 5010 w->sent = 1;
4268 evpipe_write (EV_A_ &async_pending); 5011 evpipe_write (EV_A_ &async_pending);
4269} 5012}
4270#endif 5013#endif
… …
4307 5050
4308 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5051 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4309} 5052}
4310 5053
4311void 5054void
4312ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 5055ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4313{ 5056{
4314 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5057 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4315
4316 if (expect_false (!once))
4317 {
4318 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4319 return;
4320 }
4321 5058
4322 once->cb = cb; 5059 once->cb = cb;
4323 once->arg = arg; 5060 once->arg = arg;
4324 5061
4325 ev_init (&once->io, once_cb_io); 5062 ev_init (&once->io, once_cb_io);
… …
4338} 5075}
4339 5076
4340/*****************************************************************************/ 5077/*****************************************************************************/
4341 5078
4342#if EV_WALK_ENABLE 5079#if EV_WALK_ENABLE
4343void ecb_cold 5080ecb_cold
5081void
4344ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 5082ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4345{ 5083{
4346 int i, j; 5084 int i, j;
4347 ev_watcher_list *wl, *wn; 5085 ev_watcher_list *wl, *wn;
4348 5086
4349 if (types & (EV_IO | EV_EMBED)) 5087 if (types & (EV_IO | EV_EMBED))

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