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Comparing libev/ev.c (file contents):
Revision 1.449 by root, Sun Sep 23 21:21:58 2012 UTC vs.
Revision 1.506 by root, Thu Jul 11 05:41:39 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
337#ifndef EV_USE_IOURING
338# if __linux
339# define EV_USE_IOURING 0
340# else
341# define EV_USE_IOURING 0
342# endif
343#endif
344
312#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 348# else
316# define EV_USE_INOTIFY 0 349# define EV_USE_INOTIFY 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 388# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 389#endif
357 390
358#ifndef EV_HEAP_CACHE_AT 391#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 392# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
393#endif
394
395#ifdef __ANDROID__
396/* supposedly, android doesn't typedef fd_mask */
397# undef EV_USE_SELECT
398# define EV_USE_SELECT 0
399/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
400# undef EV_USE_CLOCK_SYSCALL
401# define EV_USE_CLOCK_SYSCALL 0
402#endif
403
404/* aix's poll.h seems to cause lots of trouble */
405#ifdef _AIX
406/* AIX has a completely broken poll.h header */
407# undef EV_USE_POLL
408# define EV_USE_POLL 0
360#endif 409#endif
361 410
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 411/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */ 412/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 413#if EV_USE_CLOCK_SYSCALL
365# include <sys/syscall.h> 414# include <sys/syscall.h>
366# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
368# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
369# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
370# else 420# else
371# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
372# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
373# endif 423# endif
374#endif 424#endif
375 425
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 426/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377 427
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
384#ifndef CLOCK_MONOTONIC 428#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 429# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 430# define EV_USE_MONOTONIC 0
387#endif 431#endif
388 432
… …
398 442
399#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
400/* hp-ux has it in sys/time.h, which we unconditionally include above */ 444/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux 445# if !defined _WIN32 && !defined __hpux
402# include <sys/select.h> 446# include <sys/select.h>
447# endif
448#endif
449
450#if EV_USE_LINUXAIO
451# include <sys/syscall.h>
452# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
453# define EV_NEED_SYSCALL 1
454# else
455# undef EV_USE_LINUXAIO
456# define EV_USE_LINUXAIO 0
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !SYS_io_uring_setup && __linux && !__alpha
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
403# endif 472# endif
404#endif 473#endif
405 474
406#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
407# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
449 uint32_t ssi_signo; 518 uint32_t ssi_signo;
450 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
451}; 520};
452#endif 521#endif
453 522
454/**/ 523/*****************************************************************************/
455 524
456#if EV_VERIFY >= 3 525#if EV_VERIFY >= 3
457# define EV_FREQUENT_CHECK ev_verify (EV_A) 526# define EV_FREQUENT_CHECK ev_verify (EV_A)
458#else 527#else
459# define EV_FREQUENT_CHECK do { } while (0) 528# define EV_FREQUENT_CHECK do { } while (0)
… …
464 * This value is good at least till the year 4000. 533 * This value is good at least till the year 4000.
465 */ 534 */
466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 535#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 536/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
468 537
469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 538#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 539#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
471 540
541/* find a portable timestamp that is "always" in the future but fits into time_t.
542 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
543 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
544#define EV_TSTAMP_HUGE \
545 (sizeof (time_t) >= 8 ? 10000000000000. \
546 : 0 < (time_t)4294967295 ? 4294967295. \
547 : 2147483647.) \
548
549#define EV_TS_TO_MS(a) a * 1e3 + 0.9999
550#define EV_TS_FROM_US(us) us * 1e-6
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 551#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 552#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
553#define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
554#define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
474 555
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 556/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 557/* ECB.H BEGIN */
477/* 558/*
478 * libecb - http://software.schmorp.de/pkg/libecb 559 * libecb - http://software.schmorp.de/pkg/libecb
479 * 560 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 561 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 562 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 563 * All rights reserved.
483 * 564 *
484 * Redistribution and use in source and binary forms, with or without modifica- 565 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 566 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 580 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 581 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 582 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 583 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 584 * OF THE POSSIBILITY OF SUCH DAMAGE.
585 *
586 * Alternatively, the contents of this file may be used under the terms of
587 * the GNU General Public License ("GPL") version 2 or any later version,
588 * in which case the provisions of the GPL are applicable instead of
589 * the above. If you wish to allow the use of your version of this file
590 * only under the terms of the GPL and not to allow others to use your
591 * version of this file under the BSD license, indicate your decision
592 * by deleting the provisions above and replace them with the notice
593 * and other provisions required by the GPL. If you do not delete the
594 * provisions above, a recipient may use your version of this file under
595 * either the BSD or the GPL.
504 */ 596 */
505 597
506#ifndef ECB_H 598#ifndef ECB_H
507#define ECB_H 599#define ECB_H
508 600
509/* 16 bits major, 16 bits minor */ 601/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001 602#define ECB_VERSION 0x00010006
511 603
512#ifdef _WIN32 604#ifdef _WIN32
513 typedef signed char int8_t; 605 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 606 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 607 typedef signed short int16_t;
… …
530 #else 622 #else
531 #define ECB_PTRSIZE 4 623 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t; 624 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 625 typedef int32_t intptr_t;
534 #endif 626 #endif
535 typedef intptr_t ptrdiff_t;
536#else 627#else
537 #include <inttypes.h> 628 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU 629 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
539 #define ECB_PTRSIZE 8 630 #define ECB_PTRSIZE 8
540 #else 631 #else
541 #define ECB_PTRSIZE 4 632 #define ECB_PTRSIZE 4
633 #endif
634#endif
635
636#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
637#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
638
639/* work around x32 idiocy by defining proper macros */
640#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
641 #if _ILP32
642 #define ECB_AMD64_X32 1
643 #else
644 #define ECB_AMD64 1
542 #endif 645 #endif
543#endif 646#endif
544 647
545/* many compilers define _GNUC_ to some versions but then only implement 648/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions, 649 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers. 650 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so. 651 * or so.
549 * we try to detect these and simply assume they are not gcc - if they have 652 * we try to detect these and simply assume they are not gcc - if they have
550 * an issue with that they should have done it right in the first place. 653 * an issue with that they should have done it right in the first place.
551 */ 654 */
552#ifndef ECB_GCC_VERSION
553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 655#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
554 #define ECB_GCC_VERSION(major,minor) 0 656 #define ECB_GCC_VERSION(major,minor) 0
555 #else 657#else
556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 658 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
557 #endif 659#endif
558#endif
559 660
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 661#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
561#define ECB_C99 (__STDC_VERSION__ >= 199901L) 662
562#define ECB_C11 (__STDC_VERSION__ >= 201112L) 663#if __clang__ && defined __has_builtin
664 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
665#else
666 #define ECB_CLANG_BUILTIN(x) 0
667#endif
668
669#if __clang__ && defined __has_extension
670 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
671#else
672 #define ECB_CLANG_EXTENSION(x) 0
673#endif
674
563#define ECB_CPP (__cplusplus+0) 675#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP11 (__cplusplus >= 201103L) 676#define ECB_CPP11 (__cplusplus >= 201103L)
677#define ECB_CPP14 (__cplusplus >= 201402L)
678#define ECB_CPP17 (__cplusplus >= 201703L)
679
680#if ECB_CPP
681 #define ECB_C 0
682 #define ECB_STDC_VERSION 0
683#else
684 #define ECB_C 1
685 #define ECB_STDC_VERSION __STDC_VERSION__
686#endif
687
688#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
689#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
690#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
691
692#if ECB_CPP
693 #define ECB_EXTERN_C extern "C"
694 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
695 #define ECB_EXTERN_C_END }
696#else
697 #define ECB_EXTERN_C extern
698 #define ECB_EXTERN_C_BEG
699 #define ECB_EXTERN_C_END
700#endif
565 701
566/*****************************************************************************/ 702/*****************************************************************************/
567 703
568/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 704/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
569/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 705/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
… …
574 710
575#if ECB_NO_SMP 711#if ECB_NO_SMP
576 #define ECB_MEMORY_FENCE do { } while (0) 712 #define ECB_MEMORY_FENCE do { } while (0)
577#endif 713#endif
578 714
715/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
716#if __xlC__ && ECB_CPP
717 #include <builtins.h>
718#endif
719
720#if 1400 <= _MSC_VER
721 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
722#endif
723
579#ifndef ECB_MEMORY_FENCE 724#ifndef ECB_MEMORY_FENCE
580 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 725 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
726 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
581 #if __i386 || __i386__ 727 #if __i386 || __i386__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 728 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 729 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 730 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 731 #elif ECB_GCC_AMD64
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 732 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
587 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 733 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 734 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 735 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
590 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 736 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
737 #elif defined __ARM_ARCH_2__ \
738 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
739 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
740 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
741 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
742 || defined __ARM_ARCH_5TEJ__
743 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 744 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
592 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 745 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
746 || defined __ARM_ARCH_6T2__
593 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 747 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 748 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 749 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 750 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
597 #elif __sparc || __sparc__ 751 #elif __aarch64__
752 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
753 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
598 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 754 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 755 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 756 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
601 #elif defined __s390__ || defined __s390x__ 757 #elif defined __s390__ || defined __s390x__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 758 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
603 #elif defined __mips__ 759 #elif defined __mips__
760 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
761 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
604 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 762 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
605 #elif defined __alpha__ 763 #elif defined __alpha__
606 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 764 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607 #elif defined __hppa__ 765 #elif defined __hppa__
608 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 766 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 767 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif defined __ia64__ 768 #elif defined __ia64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 769 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
770 #elif defined __m68k__
771 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
772 #elif defined __m88k__
773 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
774 #elif defined __sh__
775 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
612 #endif 776 #endif
613 #endif 777 #endif
614#endif 778#endif
615 779
616#ifndef ECB_MEMORY_FENCE 780#ifndef ECB_MEMORY_FENCE
617 #if ECB_GCC_VERSION(4,7) 781 #if ECB_GCC_VERSION(4,7)
618 /* see comment below (stdatomic.h) about the C11 memory model. */ 782 /* see comment below (stdatomic.h) about the C11 memory model. */
619 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 783 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620 #elif defined __clang && __has_feature (cxx_atomic) 784 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
785 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
786 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
787
788 #elif ECB_CLANG_EXTENSION(c_atomic)
621 /* see comment below (stdatomic.h) about the C11 memory model. */ 789 /* see comment below (stdatomic.h) about the C11 memory model. */
622 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 790 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
791 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
792 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
793 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
794
623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 795 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
624 #define ECB_MEMORY_FENCE __sync_synchronize () 796 #define ECB_MEMORY_FENCE __sync_synchronize ()
797 #elif _MSC_VER >= 1500 /* VC++ 2008 */
798 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
799 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
800 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
801 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
802 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
625 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 803 #elif _MSC_VER >= 1400 /* VC++ 2005 */
626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 804 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
627 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 805 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
628 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 806 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 807 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
630 #elif defined _WIN32 808 #elif defined _WIN32
631 #include <WinNT.h> 809 #include <WinNT.h>
632 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 810 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
633 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 811 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #include <mbarrier.h> 812 #include <mbarrier.h>
635 #define ECB_MEMORY_FENCE __machine_rw_barrier () 813 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
636 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 814 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
637 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 815 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
816 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
638 #elif __xlC__ 817 #elif __xlC__
639 #define ECB_MEMORY_FENCE __sync () 818 #define ECB_MEMORY_FENCE __sync ()
640 #endif 819 #endif
641#endif 820#endif
642 821
643#ifndef ECB_MEMORY_FENCE 822#ifndef ECB_MEMORY_FENCE
644 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 823 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
645 /* we assume that these memory fences work on all variables/all memory accesses, */ 824 /* we assume that these memory fences work on all variables/all memory accesses, */
646 /* not just C11 atomics and atomic accesses */ 825 /* not just C11 atomics and atomic accesses */
647 #include <stdatomic.h> 826 #include <stdatomic.h>
648 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
649 /* any fence other than seq_cst, which isn't very efficient for us. */
650 /* Why that is, we don't know - either the C11 memory model is quite useless */
651 /* for most usages, or gcc and clang have a bug */
652 /* I *currently* lean towards the latter, and inefficiently implement */
653 /* all three of ecb's fences as a seq_cst fence */
654 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 827 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
828 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
829 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
655 #endif 830 #endif
656#endif 831#endif
657 832
658#ifndef ECB_MEMORY_FENCE 833#ifndef ECB_MEMORY_FENCE
659 #if !ECB_AVOID_PTHREADS 834 #if !ECB_AVOID_PTHREADS
… …
679 854
680#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 855#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 856 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
682#endif 857#endif
683 858
859#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
860 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
861#endif
862
684/*****************************************************************************/ 863/*****************************************************************************/
685 864
686#if __cplusplus 865#if ECB_CPP
687 #define ecb_inline static inline 866 #define ecb_inline static inline
688#elif ECB_GCC_VERSION(2,5) 867#elif ECB_GCC_VERSION(2,5)
689 #define ecb_inline static __inline__ 868 #define ecb_inline static __inline__
690#elif ECB_C99 869#elif ECB_C99
691 #define ecb_inline static inline 870 #define ecb_inline static inline
… …
705 884
706#define ECB_CONCAT_(a, b) a ## b 885#define ECB_CONCAT_(a, b) a ## b
707#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 886#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
708#define ECB_STRINGIFY_(a) # a 887#define ECB_STRINGIFY_(a) # a
709#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 888#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
889#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
710 890
711#define ecb_function_ ecb_inline 891#define ecb_function_ ecb_inline
712 892
713#if ECB_GCC_VERSION(3,1) 893#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
714 #define ecb_attribute(attrlist) __attribute__(attrlist) 894 #define ecb_attribute(attrlist) __attribute__ (attrlist)
895#else
896 #define ecb_attribute(attrlist)
897#endif
898
899#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
715 #define ecb_is_constant(expr) __builtin_constant_p (expr) 900 #define ecb_is_constant(expr) __builtin_constant_p (expr)
901#else
902 /* possible C11 impl for integral types
903 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
904 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
905
906 #define ecb_is_constant(expr) 0
907#endif
908
909#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
716 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 910 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
911#else
912 #define ecb_expect(expr,value) (expr)
913#endif
914
915#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
717 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 916 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
718#else 917#else
719 #define ecb_attribute(attrlist)
720 #define ecb_is_constant(expr) 0
721 #define ecb_expect(expr,value) (expr)
722 #define ecb_prefetch(addr,rw,locality) 918 #define ecb_prefetch(addr,rw,locality)
723#endif 919#endif
724 920
725/* no emulation for ecb_decltype */ 921/* no emulation for ecb_decltype */
726#if ECB_GCC_VERSION(4,5) 922#if ECB_CPP11
923 // older implementations might have problems with decltype(x)::type, work around it
924 template<class T> struct ecb_decltype_t { typedef T type; };
727 #define ecb_decltype(x) __decltype(x) 925 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
728#elif ECB_GCC_VERSION(3,0) 926#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
729 #define ecb_decltype(x) __typeof(x) 927 #define ecb_decltype(x) __typeof__ (x)
730#endif 928#endif
731 929
930#if _MSC_VER >= 1300
931 #define ecb_deprecated __declspec (deprecated)
932#else
933 #define ecb_deprecated ecb_attribute ((__deprecated__))
934#endif
935
936#if _MSC_VER >= 1500
937 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
938#elif ECB_GCC_VERSION(4,5)
939 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
940#else
941 #define ecb_deprecated_message(msg) ecb_deprecated
942#endif
943
944#if _MSC_VER >= 1400
945 #define ecb_noinline __declspec (noinline)
946#else
732#define ecb_noinline ecb_attribute ((__noinline__)) 947 #define ecb_noinline ecb_attribute ((__noinline__))
948#endif
949
733#define ecb_unused ecb_attribute ((__unused__)) 950#define ecb_unused ecb_attribute ((__unused__))
734#define ecb_const ecb_attribute ((__const__)) 951#define ecb_const ecb_attribute ((__const__))
735#define ecb_pure ecb_attribute ((__pure__)) 952#define ecb_pure ecb_attribute ((__pure__))
736 953
737#if ECB_C11 954#if ECB_C11 || __IBMC_NORETURN
955 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
738 #define ecb_noreturn _Noreturn 956 #define ecb_noreturn _Noreturn
957#elif ECB_CPP11
958 #define ecb_noreturn [[noreturn]]
959#elif _MSC_VER >= 1200
960 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
961 #define ecb_noreturn __declspec (noreturn)
739#else 962#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__)) 963 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif 964#endif
742 965
743#if ECB_GCC_VERSION(4,3) 966#if ECB_GCC_VERSION(4,3)
… …
758/* for compatibility to the rest of the world */ 981/* for compatibility to the rest of the world */
759#define ecb_likely(expr) ecb_expect_true (expr) 982#define ecb_likely(expr) ecb_expect_true (expr)
760#define ecb_unlikely(expr) ecb_expect_false (expr) 983#define ecb_unlikely(expr) ecb_expect_false (expr)
761 984
762/* count trailing zero bits and count # of one bits */ 985/* count trailing zero bits and count # of one bits */
763#if ECB_GCC_VERSION(3,4) 986#if ECB_GCC_VERSION(3,4) \
987 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
988 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
989 && ECB_CLANG_BUILTIN(__builtin_popcount))
764 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 990 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
765 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 991 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
766 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 992 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
767 #define ecb_ctz32(x) __builtin_ctz (x) 993 #define ecb_ctz32(x) __builtin_ctz (x)
768 #define ecb_ctz64(x) __builtin_ctzll (x) 994 #define ecb_ctz64(x) __builtin_ctzll (x)
769 #define ecb_popcount32(x) __builtin_popcount (x) 995 #define ecb_popcount32(x) __builtin_popcount (x)
770 /* no popcountll */ 996 /* no popcountll */
771#else 997#else
772 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 998 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
773 ecb_function_ int 999 ecb_function_ ecb_const int
774 ecb_ctz32 (uint32_t x) 1000 ecb_ctz32 (uint32_t x)
775 { 1001 {
1002#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1003 unsigned long r;
1004 _BitScanForward (&r, x);
1005 return (int)r;
1006#else
776 int r = 0; 1007 int r = 0;
777 1008
778 x &= ~x + 1; /* this isolates the lowest bit */ 1009 x &= ~x + 1; /* this isolates the lowest bit */
779 1010
780#if ECB_branchless_on_i386 1011#if ECB_branchless_on_i386
… …
790 if (x & 0xff00ff00) r += 8; 1021 if (x & 0xff00ff00) r += 8;
791 if (x & 0xffff0000) r += 16; 1022 if (x & 0xffff0000) r += 16;
792#endif 1023#endif
793 1024
794 return r; 1025 return r;
1026#endif
795 } 1027 }
796 1028
797 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1029 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
798 ecb_function_ int 1030 ecb_function_ ecb_const int
799 ecb_ctz64 (uint64_t x) 1031 ecb_ctz64 (uint64_t x)
800 { 1032 {
1033#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1034 unsigned long r;
1035 _BitScanForward64 (&r, x);
1036 return (int)r;
1037#else
801 int shift = x & 0xffffffffU ? 0 : 32; 1038 int shift = x & 0xffffffff ? 0 : 32;
802 return ecb_ctz32 (x >> shift) + shift; 1039 return ecb_ctz32 (x >> shift) + shift;
1040#endif
803 } 1041 }
804 1042
805 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1043 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
806 ecb_function_ int 1044 ecb_function_ ecb_const int
807 ecb_popcount32 (uint32_t x) 1045 ecb_popcount32 (uint32_t x)
808 { 1046 {
809 x -= (x >> 1) & 0x55555555; 1047 x -= (x >> 1) & 0x55555555;
810 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1048 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
811 x = ((x >> 4) + x) & 0x0f0f0f0f; 1049 x = ((x >> 4) + x) & 0x0f0f0f0f;
812 x *= 0x01010101; 1050 x *= 0x01010101;
813 1051
814 return x >> 24; 1052 return x >> 24;
815 } 1053 }
816 1054
817 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1055 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
818 ecb_function_ int ecb_ld32 (uint32_t x) 1056 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
819 { 1057 {
1058#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1059 unsigned long r;
1060 _BitScanReverse (&r, x);
1061 return (int)r;
1062#else
820 int r = 0; 1063 int r = 0;
821 1064
822 if (x >> 16) { x >>= 16; r += 16; } 1065 if (x >> 16) { x >>= 16; r += 16; }
823 if (x >> 8) { x >>= 8; r += 8; } 1066 if (x >> 8) { x >>= 8; r += 8; }
824 if (x >> 4) { x >>= 4; r += 4; } 1067 if (x >> 4) { x >>= 4; r += 4; }
825 if (x >> 2) { x >>= 2; r += 2; } 1068 if (x >> 2) { x >>= 2; r += 2; }
826 if (x >> 1) { r += 1; } 1069 if (x >> 1) { r += 1; }
827 1070
828 return r; 1071 return r;
1072#endif
829 } 1073 }
830 1074
831 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1075 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
832 ecb_function_ int ecb_ld64 (uint64_t x) 1076 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
833 { 1077 {
1078#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1079 unsigned long r;
1080 _BitScanReverse64 (&r, x);
1081 return (int)r;
1082#else
834 int r = 0; 1083 int r = 0;
835 1084
836 if (x >> 32) { x >>= 32; r += 32; } 1085 if (x >> 32) { x >>= 32; r += 32; }
837 1086
838 return r + ecb_ld32 (x); 1087 return r + ecb_ld32 (x);
1088#endif
839 } 1089 }
840#endif 1090#endif
841 1091
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1092ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
843ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1093ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
844ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1094ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
845ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1095ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846 1096
847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1097ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1098ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
849{ 1099{
850 return ( (x * 0x0802U & 0x22110U) 1100 return ( (x * 0x0802U & 0x22110U)
851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1101 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852} 1102}
853 1103
854ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1104ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
855ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1105ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
856{ 1106{
857 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1107 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
858 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1108 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
859 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1109 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
860 x = ( x >> 8 ) | ( x << 8); 1110 x = ( x >> 8 ) | ( x << 8);
861 1111
862 return x; 1112 return x;
863} 1113}
864 1114
865ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1115ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
866ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1116ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
867{ 1117{
868 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1118 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
869 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1119 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
870 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1120 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
871 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1121 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
874 return x; 1124 return x;
875} 1125}
876 1126
877/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1127/* popcount64 is only available on 64 bit cpus as gcc builtin */
878/* so for this version we are lazy */ 1128/* so for this version we are lazy */
879ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1129ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
880ecb_function_ int 1130ecb_function_ ecb_const int
881ecb_popcount64 (uint64_t x) 1131ecb_popcount64 (uint64_t x)
882{ 1132{
883 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1133 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
884} 1134}
885 1135
886ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1136ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
887ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1137ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
888ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1138ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
889ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1139ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
890ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1140ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
891ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1141ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
892ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1142ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
893ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1143ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
894 1144
895ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1145ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
896ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1146ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
897ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1147ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
898ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1148ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
899ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1149ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
900ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1150ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
901ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1151ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
902ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1152ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
903 1153
904#if ECB_GCC_VERSION(4,3) 1154#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1155 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1156 #define ecb_bswap16(x) __builtin_bswap16 (x)
1157 #else
905 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1158 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1159 #endif
906 #define ecb_bswap32(x) __builtin_bswap32 (x) 1160 #define ecb_bswap32(x) __builtin_bswap32 (x)
907 #define ecb_bswap64(x) __builtin_bswap64 (x) 1161 #define ecb_bswap64(x) __builtin_bswap64 (x)
1162#elif _MSC_VER
1163 #include <stdlib.h>
1164 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1165 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1166 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
908#else 1167#else
909 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1168 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
910 ecb_function_ uint16_t 1169 ecb_function_ ecb_const uint16_t
911 ecb_bswap16 (uint16_t x) 1170 ecb_bswap16 (uint16_t x)
912 { 1171 {
913 return ecb_rotl16 (x, 8); 1172 return ecb_rotl16 (x, 8);
914 } 1173 }
915 1174
916 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1175 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
917 ecb_function_ uint32_t 1176 ecb_function_ ecb_const uint32_t
918 ecb_bswap32 (uint32_t x) 1177 ecb_bswap32 (uint32_t x)
919 { 1178 {
920 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1179 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
921 } 1180 }
922 1181
923 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1182 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
924 ecb_function_ uint64_t 1183 ecb_function_ ecb_const uint64_t
925 ecb_bswap64 (uint64_t x) 1184 ecb_bswap64 (uint64_t x)
926 { 1185 {
927 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1186 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
928 } 1187 }
929#endif 1188#endif
930 1189
931#if ECB_GCC_VERSION(4,5) 1190#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
932 #define ecb_unreachable() __builtin_unreachable () 1191 #define ecb_unreachable() __builtin_unreachable ()
933#else 1192#else
934 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1193 /* this seems to work fine, but gcc always emits a warning for it :/ */
935 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1194 ecb_inline ecb_noreturn void ecb_unreachable (void);
936 ecb_inline void ecb_unreachable (void) { } 1195 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
937#endif 1196#endif
938 1197
939/* try to tell the compiler that some condition is definitely true */ 1198/* try to tell the compiler that some condition is definitely true */
940#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1199#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
941 1200
942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1201ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
943ecb_inline unsigned char 1202ecb_inline ecb_const uint32_t
944ecb_byteorder_helper (void) 1203ecb_byteorder_helper (void)
945{ 1204{
946 const uint32_t u = 0x11223344; 1205 /* the union code still generates code under pressure in gcc, */
947 return *(unsigned char *)&u; 1206 /* but less than using pointers, and always seems to */
1207 /* successfully return a constant. */
1208 /* the reason why we have this horrible preprocessor mess */
1209 /* is to avoid it in all cases, at least on common architectures */
1210 /* or when using a recent enough gcc version (>= 4.6) */
1211#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1212 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1213 #define ECB_LITTLE_ENDIAN 1
1214 return 0x44332211;
1215#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1216 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1217 #define ECB_BIG_ENDIAN 1
1218 return 0x11223344;
1219#else
1220 union
1221 {
1222 uint8_t c[4];
1223 uint32_t u;
1224 } u = { 0x11, 0x22, 0x33, 0x44 };
1225 return u.u;
1226#endif
948} 1227}
949 1228
950ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1229ecb_inline ecb_const ecb_bool ecb_big_endian (void);
951ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1230ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
952ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1231ecb_inline ecb_const ecb_bool ecb_little_endian (void);
953ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1232ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
954 1233
955#if ECB_GCC_VERSION(3,0) || ECB_C99 1234#if ECB_GCC_VERSION(3,0) || ECB_C99
956 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1235 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
957#else 1236#else
958 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1237 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
959#endif 1238#endif
960 1239
961#if __cplusplus 1240#if ECB_CPP
962 template<typename T> 1241 template<typename T>
963 static inline T ecb_div_rd (T val, T div) 1242 static inline T ecb_div_rd (T val, T div)
964 { 1243 {
965 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1244 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
966 } 1245 }
… …
983 } 1262 }
984#else 1263#else
985 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1264 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
986#endif 1265#endif
987 1266
1267ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1268ecb_function_ ecb_const uint32_t
1269ecb_binary16_to_binary32 (uint32_t x)
1270{
1271 unsigned int s = (x & 0x8000) << (31 - 15);
1272 int e = (x >> 10) & 0x001f;
1273 unsigned int m = x & 0x03ff;
1274
1275 if (ecb_expect_false (e == 31))
1276 /* infinity or NaN */
1277 e = 255 - (127 - 15);
1278 else if (ecb_expect_false (!e))
1279 {
1280 if (ecb_expect_true (!m))
1281 /* zero, handled by code below by forcing e to 0 */
1282 e = 0 - (127 - 15);
1283 else
1284 {
1285 /* subnormal, renormalise */
1286 unsigned int s = 10 - ecb_ld32 (m);
1287
1288 m = (m << s) & 0x3ff; /* mask implicit bit */
1289 e -= s - 1;
1290 }
1291 }
1292
1293 /* e and m now are normalised, or zero, (or inf or nan) */
1294 e += 127 - 15;
1295
1296 return s | (e << 23) | (m << (23 - 10));
1297}
1298
1299ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1300ecb_function_ ecb_const uint16_t
1301ecb_binary32_to_binary16 (uint32_t x)
1302{
1303 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1304 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1305 unsigned int m = x & 0x007fffff;
1306
1307 x &= 0x7fffffff;
1308
1309 /* if it's within range of binary16 normals, use fast path */
1310 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1311 {
1312 /* mantissa round-to-even */
1313 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1314
1315 /* handle overflow */
1316 if (ecb_expect_false (m >= 0x00800000))
1317 {
1318 m >>= 1;
1319 e += 1;
1320 }
1321
1322 return s | (e << 10) | (m >> (23 - 10));
1323 }
1324
1325 /* handle large numbers and infinity */
1326 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1327 return s | 0x7c00;
1328
1329 /* handle zero, subnormals and small numbers */
1330 if (ecb_expect_true (x < 0x38800000))
1331 {
1332 /* zero */
1333 if (ecb_expect_true (!x))
1334 return s;
1335
1336 /* handle subnormals */
1337
1338 /* too small, will be zero */
1339 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1340 return s;
1341
1342 m |= 0x00800000; /* make implicit bit explicit */
1343
1344 /* very tricky - we need to round to the nearest e (+10) bit value */
1345 {
1346 unsigned int bits = 14 - e;
1347 unsigned int half = (1 << (bits - 1)) - 1;
1348 unsigned int even = (m >> bits) & 1;
1349
1350 /* if this overflows, we will end up with a normalised number */
1351 m = (m + half + even) >> bits;
1352 }
1353
1354 return s | m;
1355 }
1356
1357 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1358 m >>= 13;
1359
1360 return s | 0x7c00 | m | !m;
1361}
1362
1363/*******************************************************************************/
1364/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1365
1366/* basically, everything uses "ieee pure-endian" floating point numbers */
1367/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1368#if 0 \
1369 || __i386 || __i386__ \
1370 || ECB_GCC_AMD64 \
1371 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1372 || defined __s390__ || defined __s390x__ \
1373 || defined __mips__ \
1374 || defined __alpha__ \
1375 || defined __hppa__ \
1376 || defined __ia64__ \
1377 || defined __m68k__ \
1378 || defined __m88k__ \
1379 || defined __sh__ \
1380 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1381 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1382 || defined __aarch64__
1383 #define ECB_STDFP 1
1384 #include <string.h> /* for memcpy */
1385#else
1386 #define ECB_STDFP 0
1387#endif
1388
1389#ifndef ECB_NO_LIBM
1390
1391 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1392
1393 /* only the oldest of old doesn't have this one. solaris. */
1394 #ifdef INFINITY
1395 #define ECB_INFINITY INFINITY
1396 #else
1397 #define ECB_INFINITY HUGE_VAL
1398 #endif
1399
1400 #ifdef NAN
1401 #define ECB_NAN NAN
1402 #else
1403 #define ECB_NAN ECB_INFINITY
1404 #endif
1405
1406 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1407 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1408 #define ecb_frexpf(x,e) frexpf ((x), (e))
1409 #else
1410 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1411 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1412 #endif
1413
1414 /* convert a float to ieee single/binary32 */
1415 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1416 ecb_function_ ecb_const uint32_t
1417 ecb_float_to_binary32 (float x)
1418 {
1419 uint32_t r;
1420
1421 #if ECB_STDFP
1422 memcpy (&r, &x, 4);
1423 #else
1424 /* slow emulation, works for anything but -0 */
1425 uint32_t m;
1426 int e;
1427
1428 if (x == 0e0f ) return 0x00000000U;
1429 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1430 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1431 if (x != x ) return 0x7fbfffffU;
1432
1433 m = ecb_frexpf (x, &e) * 0x1000000U;
1434
1435 r = m & 0x80000000U;
1436
1437 if (r)
1438 m = -m;
1439
1440 if (e <= -126)
1441 {
1442 m &= 0xffffffU;
1443 m >>= (-125 - e);
1444 e = -126;
1445 }
1446
1447 r |= (e + 126) << 23;
1448 r |= m & 0x7fffffU;
1449 #endif
1450
1451 return r;
1452 }
1453
1454 /* converts an ieee single/binary32 to a float */
1455 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1456 ecb_function_ ecb_const float
1457 ecb_binary32_to_float (uint32_t x)
1458 {
1459 float r;
1460
1461 #if ECB_STDFP
1462 memcpy (&r, &x, 4);
1463 #else
1464 /* emulation, only works for normals and subnormals and +0 */
1465 int neg = x >> 31;
1466 int e = (x >> 23) & 0xffU;
1467
1468 x &= 0x7fffffU;
1469
1470 if (e)
1471 x |= 0x800000U;
1472 else
1473 e = 1;
1474
1475 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1476 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1477
1478 r = neg ? -r : r;
1479 #endif
1480
1481 return r;
1482 }
1483
1484 /* convert a double to ieee double/binary64 */
1485 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1486 ecb_function_ ecb_const uint64_t
1487 ecb_double_to_binary64 (double x)
1488 {
1489 uint64_t r;
1490
1491 #if ECB_STDFP
1492 memcpy (&r, &x, 8);
1493 #else
1494 /* slow emulation, works for anything but -0 */
1495 uint64_t m;
1496 int e;
1497
1498 if (x == 0e0 ) return 0x0000000000000000U;
1499 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1500 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1501 if (x != x ) return 0X7ff7ffffffffffffU;
1502
1503 m = frexp (x, &e) * 0x20000000000000U;
1504
1505 r = m & 0x8000000000000000;;
1506
1507 if (r)
1508 m = -m;
1509
1510 if (e <= -1022)
1511 {
1512 m &= 0x1fffffffffffffU;
1513 m >>= (-1021 - e);
1514 e = -1022;
1515 }
1516
1517 r |= ((uint64_t)(e + 1022)) << 52;
1518 r |= m & 0xfffffffffffffU;
1519 #endif
1520
1521 return r;
1522 }
1523
1524 /* converts an ieee double/binary64 to a double */
1525 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1526 ecb_function_ ecb_const double
1527 ecb_binary64_to_double (uint64_t x)
1528 {
1529 double r;
1530
1531 #if ECB_STDFP
1532 memcpy (&r, &x, 8);
1533 #else
1534 /* emulation, only works for normals and subnormals and +0 */
1535 int neg = x >> 63;
1536 int e = (x >> 52) & 0x7ffU;
1537
1538 x &= 0xfffffffffffffU;
1539
1540 if (e)
1541 x |= 0x10000000000000U;
1542 else
1543 e = 1;
1544
1545 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1546 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1547
1548 r = neg ? -r : r;
1549 #endif
1550
1551 return r;
1552 }
1553
1554 /* convert a float to ieee half/binary16 */
1555 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1556 ecb_function_ ecb_const uint16_t
1557 ecb_float_to_binary16 (float x)
1558 {
1559 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1560 }
1561
1562 /* convert an ieee half/binary16 to float */
1563 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1564 ecb_function_ ecb_const float
1565 ecb_binary16_to_float (uint16_t x)
1566 {
1567 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1568 }
1569
1570#endif
1571
988#endif 1572#endif
989 1573
990/* ECB.H END */ 1574/* ECB.H END */
991 1575
992#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1576#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
993/* if your architecture doesn't need memory fences, e.g. because it is 1577/* if your architecture doesn't need memory fences, e.g. because it is
994 * single-cpu/core, or if you use libev in a project that doesn't use libev 1578 * single-cpu/core, or if you use libev in a project that doesn't use libev
995 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1579 * from multiple threads, then you can define ECB_NO_THREADS when compiling
996 * libev, in which cases the memory fences become nops. 1580 * libev, in which cases the memory fences become nops.
997 * alternatively, you can remove this #error and link against libpthread, 1581 * alternatively, you can remove this #error and link against libpthread,
998 * which will then provide the memory fences. 1582 * which will then provide the memory fences.
999 */ 1583 */
1000# error "memory fences not defined for your architecture, please report" 1584# error "memory fences not defined for your architecture, please report"
… …
1004# define ECB_MEMORY_FENCE do { } while (0) 1588# define ECB_MEMORY_FENCE do { } while (0)
1005# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1589# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1006# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1590# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1007#endif 1591#endif
1008 1592
1009#define expect_false(cond) ecb_expect_false (cond)
1010#define expect_true(cond) ecb_expect_true (cond)
1011#define noinline ecb_noinline
1012
1013#define inline_size ecb_inline 1593#define inline_size ecb_inline
1014 1594
1015#if EV_FEATURE_CODE 1595#if EV_FEATURE_CODE
1016# define inline_speed ecb_inline 1596# define inline_speed ecb_inline
1017#else 1597#else
1018# define inline_speed static noinline 1598# define inline_speed ecb_noinline static
1019#endif 1599#endif
1600
1601/*****************************************************************************/
1602/* raw syscall wrappers */
1603
1604#if EV_NEED_SYSCALL
1605
1606#include <sys/syscall.h>
1607
1608/*
1609 * define some syscall wrappers for common architectures
1610 * this is mostly for nice looks during debugging, not performance.
1611 * our syscalls return < 0, not == -1, on error. which is good
1612 * enough for linux aio.
1613 * TODO: arm is also common nowadays, maybe even mips and x86
1614 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1615 */
1616#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1617 /* the costly errno access probably kills this for size optimisation */
1618
1619 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1620 ({ \
1621 long res; \
1622 register unsigned long r6 __asm__ ("r9" ); \
1623 register unsigned long r5 __asm__ ("r8" ); \
1624 register unsigned long r4 __asm__ ("r10"); \
1625 register unsigned long r3 __asm__ ("rdx"); \
1626 register unsigned long r2 __asm__ ("rsi"); \
1627 register unsigned long r1 __asm__ ("rdi"); \
1628 if (narg >= 6) r6 = (unsigned long)(arg6); \
1629 if (narg >= 5) r5 = (unsigned long)(arg5); \
1630 if (narg >= 4) r4 = (unsigned long)(arg4); \
1631 if (narg >= 3) r3 = (unsigned long)(arg3); \
1632 if (narg >= 2) r2 = (unsigned long)(arg2); \
1633 if (narg >= 1) r1 = (unsigned long)(arg1); \
1634 __asm__ __volatile__ ( \
1635 "syscall\n\t" \
1636 : "=a" (res) \
1637 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1638 : "cc", "r11", "cx", "memory"); \
1639 errno = -res; \
1640 res; \
1641 })
1642
1643#endif
1644
1645#ifdef ev_syscall
1646 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1647 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1648 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1649 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1650 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1651 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1652 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1653#else
1654 #define ev_syscall0(nr) syscall (nr)
1655 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1656 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1657 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1658 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1659 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1660 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1661#endif
1662
1663#endif
1664
1665/*****************************************************************************/
1020 1666
1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1667#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1022 1668
1023#if EV_MINPRI == EV_MAXPRI 1669#if EV_MINPRI == EV_MAXPRI
1024# define ABSPRI(w) (((W)w), 0) 1670# define ABSPRI(w) (((W)w), 0)
1025#else 1671#else
1026# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1672# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1027#endif 1673#endif
1028 1674
1029#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1675#define EMPTY /* required for microsofts broken pseudo-c compiler */
1030#define EMPTY2(a,b) /* used to suppress some warnings */
1031 1676
1032typedef ev_watcher *W; 1677typedef ev_watcher *W;
1033typedef ev_watcher_list *WL; 1678typedef ev_watcher_list *WL;
1034typedef ev_watcher_time *WT; 1679typedef ev_watcher_time *WT;
1035 1680
… …
1060# include "ev_win32.c" 1705# include "ev_win32.c"
1061#endif 1706#endif
1062 1707
1063/*****************************************************************************/ 1708/*****************************************************************************/
1064 1709
1710#if EV_USE_LINUXAIO
1711# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1712#endif
1713
1065/* define a suitable floor function (only used by periodics atm) */ 1714/* define a suitable floor function (only used by periodics atm) */
1066 1715
1067#if EV_USE_FLOOR 1716#if EV_USE_FLOOR
1068# include <math.h> 1717# include <math.h>
1069# define ev_floor(v) floor (v) 1718# define ev_floor(v) floor (v)
1070#else 1719#else
1071 1720
1072#include <float.h> 1721#include <float.h>
1073 1722
1074/* a floor() replacement function, should be independent of ev_tstamp type */ 1723/* a floor() replacement function, should be independent of ev_tstamp type */
1724ecb_noinline
1075static ev_tstamp noinline 1725static ev_tstamp
1076ev_floor (ev_tstamp v) 1726ev_floor (ev_tstamp v)
1077{ 1727{
1078 /* the choice of shift factor is not terribly important */ 1728 /* the choice of shift factor is not terribly important */
1079#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1729#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1080 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1730 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1081#else 1731#else
1082 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1732 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1083#endif 1733#endif
1084 1734
1735 /* special treatment for negative arguments */
1736 if (ecb_expect_false (v < 0.))
1737 {
1738 ev_tstamp f = -ev_floor (-v);
1739
1740 return f - (f == v ? 0 : 1);
1741 }
1742
1085 /* argument too large for an unsigned long? */ 1743 /* argument too large for an unsigned long? then reduce it */
1086 if (expect_false (v >= shift)) 1744 if (ecb_expect_false (v >= shift))
1087 { 1745 {
1088 ev_tstamp f; 1746 ev_tstamp f;
1089 1747
1090 if (v == v - 1.) 1748 if (v == v - 1.)
1091 return v; /* very large number */ 1749 return v; /* very large numbers are assumed to be integer */
1092 1750
1093 f = shift * ev_floor (v * (1. / shift)); 1751 f = shift * ev_floor (v * (1. / shift));
1094 return f + ev_floor (v - f); 1752 return f + ev_floor (v - f);
1095 } 1753 }
1096 1754
1097 /* special treatment for negative args? */
1098 if (expect_false (v < 0.))
1099 {
1100 ev_tstamp f = -ev_floor (-v);
1101
1102 return f - (f == v ? 0 : 1);
1103 }
1104
1105 /* fits into an unsigned long */ 1755 /* fits into an unsigned long */
1106 return (unsigned long)v; 1756 return (unsigned long)v;
1107} 1757}
1108 1758
1109#endif 1759#endif
… …
1112 1762
1113#ifdef __linux 1763#ifdef __linux
1114# include <sys/utsname.h> 1764# include <sys/utsname.h>
1115#endif 1765#endif
1116 1766
1117static unsigned int noinline ecb_cold 1767ecb_noinline ecb_cold
1768static unsigned int
1118ev_linux_version (void) 1769ev_linux_version (void)
1119{ 1770{
1120#ifdef __linux 1771#ifdef __linux
1121 unsigned int v = 0; 1772 unsigned int v = 0;
1122 struct utsname buf; 1773 struct utsname buf;
… …
1151} 1802}
1152 1803
1153/*****************************************************************************/ 1804/*****************************************************************************/
1154 1805
1155#if EV_AVOID_STDIO 1806#if EV_AVOID_STDIO
1156static void noinline ecb_cold 1807ecb_noinline ecb_cold
1808static void
1157ev_printerr (const char *msg) 1809ev_printerr (const char *msg)
1158{ 1810{
1159 write (STDERR_FILENO, msg, strlen (msg)); 1811 write (STDERR_FILENO, msg, strlen (msg));
1160} 1812}
1161#endif 1813#endif
1162 1814
1163static void (*syserr_cb)(const char *msg) EV_THROW; 1815static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1164 1816
1165void ecb_cold 1817ecb_cold
1818void
1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1819ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1167{ 1820{
1168 syserr_cb = cb; 1821 syserr_cb = cb;
1169} 1822}
1170 1823
1171static void noinline ecb_cold 1824ecb_noinline ecb_cold
1825static void
1172ev_syserr (const char *msg) 1826ev_syserr (const char *msg)
1173{ 1827{
1174 if (!msg) 1828 if (!msg)
1175 msg = "(libev) system error"; 1829 msg = "(libev) system error";
1176 1830
… …
1189 abort (); 1843 abort ();
1190 } 1844 }
1191} 1845}
1192 1846
1193static void * 1847static void *
1194ev_realloc_emul (void *ptr, long size) EV_THROW 1848ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1195{ 1849{
1196 /* some systems, notably openbsd and darwin, fail to properly 1850 /* some systems, notably openbsd and darwin, fail to properly
1197 * implement realloc (x, 0) (as required by both ansi c-89 and 1851 * implement realloc (x, 0) (as required by both ansi c-89 and
1198 * the single unix specification, so work around them here. 1852 * the single unix specification, so work around them here.
1199 * recently, also (at least) fedora and debian started breaking it, 1853 * recently, also (at least) fedora and debian started breaking it,
… …
1205 1859
1206 free (ptr); 1860 free (ptr);
1207 return 0; 1861 return 0;
1208} 1862}
1209 1863
1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1864static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1211 1865
1212void ecb_cold 1866ecb_cold
1867void
1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1868ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1214{ 1869{
1215 alloc = cb; 1870 alloc = cb;
1216} 1871}
1217 1872
1218inline_speed void * 1873inline_speed void *
… …
1245typedef struct 1900typedef struct
1246{ 1901{
1247 WL head; 1902 WL head;
1248 unsigned char events; /* the events watched for */ 1903 unsigned char events; /* the events watched for */
1249 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1904 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1250 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1905 unsigned char emask; /* some backends store the actual kernel mask in here */
1251 unsigned char unused; 1906 unsigned char eflags; /* flags field for use by backends */
1252#if EV_USE_EPOLL 1907#if EV_USE_EPOLL
1253 unsigned int egen; /* generation counter to counter epoll bugs */ 1908 unsigned int egen; /* generation counter to counter epoll bugs */
1254#endif 1909#endif
1255#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1910#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1256 SOCKET handle; 1911 SOCKET handle;
… …
1320 static int ev_default_loop_ptr; 1975 static int ev_default_loop_ptr;
1321 1976
1322#endif 1977#endif
1323 1978
1324#if EV_FEATURE_API 1979#if EV_FEATURE_API
1325# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1980# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1326# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1981# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1327# define EV_INVOKE_PENDING invoke_cb (EV_A) 1982# define EV_INVOKE_PENDING invoke_cb (EV_A)
1328#else 1983#else
1329# define EV_RELEASE_CB (void)0 1984# define EV_RELEASE_CB (void)0
1330# define EV_ACQUIRE_CB (void)0 1985# define EV_ACQUIRE_CB (void)0
1331# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1986# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1335 1990
1336/*****************************************************************************/ 1991/*****************************************************************************/
1337 1992
1338#ifndef EV_HAVE_EV_TIME 1993#ifndef EV_HAVE_EV_TIME
1339ev_tstamp 1994ev_tstamp
1340ev_time (void) EV_THROW 1995ev_time (void) EV_NOEXCEPT
1341{ 1996{
1342#if EV_USE_REALTIME 1997#if EV_USE_REALTIME
1343 if (expect_true (have_realtime)) 1998 if (ecb_expect_true (have_realtime))
1344 { 1999 {
1345 struct timespec ts; 2000 struct timespec ts;
1346 clock_gettime (CLOCK_REALTIME, &ts); 2001 clock_gettime (CLOCK_REALTIME, &ts);
1347 return ts.tv_sec + ts.tv_nsec * 1e-9; 2002 return EV_TS_GET (ts);
1348 } 2003 }
1349#endif 2004#endif
1350 2005
1351 struct timeval tv; 2006 struct timeval tv;
1352 gettimeofday (&tv, 0); 2007 gettimeofday (&tv, 0);
1353 return tv.tv_sec + tv.tv_usec * 1e-6; 2008 return EV_TV_GET (tv);
1354} 2009}
1355#endif 2010#endif
1356 2011
1357inline_size ev_tstamp 2012inline_size ev_tstamp
1358get_clock (void) 2013get_clock (void)
1359{ 2014{
1360#if EV_USE_MONOTONIC 2015#if EV_USE_MONOTONIC
1361 if (expect_true (have_monotonic)) 2016 if (ecb_expect_true (have_monotonic))
1362 { 2017 {
1363 struct timespec ts; 2018 struct timespec ts;
1364 clock_gettime (CLOCK_MONOTONIC, &ts); 2019 clock_gettime (CLOCK_MONOTONIC, &ts);
1365 return ts.tv_sec + ts.tv_nsec * 1e-9; 2020 return EV_TS_GET (ts);
1366 } 2021 }
1367#endif 2022#endif
1368 2023
1369 return ev_time (); 2024 return ev_time ();
1370} 2025}
1371 2026
1372#if EV_MULTIPLICITY 2027#if EV_MULTIPLICITY
1373ev_tstamp 2028ev_tstamp
1374ev_now (EV_P) EV_THROW 2029ev_now (EV_P) EV_NOEXCEPT
1375{ 2030{
1376 return ev_rt_now; 2031 return ev_rt_now;
1377} 2032}
1378#endif 2033#endif
1379 2034
1380void 2035void
1381ev_sleep (ev_tstamp delay) EV_THROW 2036ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1382{ 2037{
1383 if (delay > 0.) 2038 if (delay > 0.)
1384 { 2039 {
1385#if EV_USE_NANOSLEEP 2040#if EV_USE_NANOSLEEP
1386 struct timespec ts; 2041 struct timespec ts;
1387 2042
1388 EV_TS_SET (ts, delay); 2043 EV_TS_SET (ts, delay);
1389 nanosleep (&ts, 0); 2044 nanosleep (&ts, 0);
1390#elif defined _WIN32 2045#elif defined _WIN32
2046 /* maybe this should round up, as ms is very low resolution */
2047 /* compared to select (µs) or nanosleep (ns) */
1391 Sleep ((unsigned long)(delay * 1e3)); 2048 Sleep ((unsigned long)(EV_TS_TO_MS (delay)));
1392#else 2049#else
1393 struct timeval tv; 2050 struct timeval tv;
1394 2051
1395 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2052 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1396 /* something not guaranteed by newer posix versions, but guaranteed */ 2053 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1426 } 2083 }
1427 2084
1428 return ncur; 2085 return ncur;
1429} 2086}
1430 2087
1431static void * noinline ecb_cold 2088ecb_noinline ecb_cold
2089static void *
1432array_realloc (int elem, void *base, int *cur, int cnt) 2090array_realloc (int elem, void *base, int *cur, int cnt)
1433{ 2091{
1434 *cur = array_nextsize (elem, *cur, cnt); 2092 *cur = array_nextsize (elem, *cur, cnt);
1435 return ev_realloc (base, elem * *cur); 2093 return ev_realloc (base, elem * *cur);
1436} 2094}
1437 2095
2096#define array_needsize_noinit(base,offset,count)
2097
1438#define array_init_zero(base,count) \ 2098#define array_needsize_zerofill(base,offset,count) \
1439 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2099 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1440 2100
1441#define array_needsize(type,base,cur,cnt,init) \ 2101#define array_needsize(type,base,cur,cnt,init) \
1442 if (expect_false ((cnt) > (cur))) \ 2102 if (ecb_expect_false ((cnt) > (cur))) \
1443 { \ 2103 { \
1444 int ecb_unused ocur_ = (cur); \ 2104 ecb_unused int ocur_ = (cur); \
1445 (base) = (type *)array_realloc \ 2105 (base) = (type *)array_realloc \
1446 (sizeof (type), (base), &(cur), (cnt)); \ 2106 (sizeof (type), (base), &(cur), (cnt)); \
1447 init ((base) + (ocur_), (cur) - ocur_); \ 2107 init ((base), ocur_, ((cur) - ocur_)); \
1448 } 2108 }
1449 2109
1450#if 0 2110#if 0
1451#define array_slim(type,stem) \ 2111#define array_slim(type,stem) \
1452 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2112 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1461 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2121 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1462 2122
1463/*****************************************************************************/ 2123/*****************************************************************************/
1464 2124
1465/* dummy callback for pending events */ 2125/* dummy callback for pending events */
1466static void noinline 2126ecb_noinline
2127static void
1467pendingcb (EV_P_ ev_prepare *w, int revents) 2128pendingcb (EV_P_ ev_prepare *w, int revents)
1468{ 2129{
1469} 2130}
1470 2131
1471void noinline 2132ecb_noinline
2133void
1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2134ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1473{ 2135{
1474 W w_ = (W)w; 2136 W w_ = (W)w;
1475 int pri = ABSPRI (w_); 2137 int pri = ABSPRI (w_);
1476 2138
1477 if (expect_false (w_->pending)) 2139 if (ecb_expect_false (w_->pending))
1478 pendings [pri][w_->pending - 1].events |= revents; 2140 pendings [pri][w_->pending - 1].events |= revents;
1479 else 2141 else
1480 { 2142 {
1481 w_->pending = ++pendingcnt [pri]; 2143 w_->pending = ++pendingcnt [pri];
1482 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2144 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1483 pendings [pri][w_->pending - 1].w = w_; 2145 pendings [pri][w_->pending - 1].w = w_;
1484 pendings [pri][w_->pending - 1].events = revents; 2146 pendings [pri][w_->pending - 1].events = revents;
1485 } 2147 }
1486 2148
1487 pendingpri = NUMPRI - 1; 2149 pendingpri = NUMPRI - 1;
1488} 2150}
1489 2151
1490inline_speed void 2152inline_speed void
1491feed_reverse (EV_P_ W w) 2153feed_reverse (EV_P_ W w)
1492{ 2154{
1493 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2155 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1494 rfeeds [rfeedcnt++] = w; 2156 rfeeds [rfeedcnt++] = w;
1495} 2157}
1496 2158
1497inline_size void 2159inline_size void
1498feed_reverse_done (EV_P_ int revents) 2160feed_reverse_done (EV_P_ int revents)
… …
1533inline_speed void 2195inline_speed void
1534fd_event (EV_P_ int fd, int revents) 2196fd_event (EV_P_ int fd, int revents)
1535{ 2197{
1536 ANFD *anfd = anfds + fd; 2198 ANFD *anfd = anfds + fd;
1537 2199
1538 if (expect_true (!anfd->reify)) 2200 if (ecb_expect_true (!anfd->reify))
1539 fd_event_nocheck (EV_A_ fd, revents); 2201 fd_event_nocheck (EV_A_ fd, revents);
1540} 2202}
1541 2203
1542void 2204void
1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2205ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1544{ 2206{
1545 if (fd >= 0 && fd < anfdmax) 2207 if (fd >= 0 && fd < anfdmax)
1546 fd_event_nocheck (EV_A_ fd, revents); 2208 fd_event_nocheck (EV_A_ fd, revents);
1547} 2209}
1548 2210
… …
1585 ev_io *w; 2247 ev_io *w;
1586 2248
1587 unsigned char o_events = anfd->events; 2249 unsigned char o_events = anfd->events;
1588 unsigned char o_reify = anfd->reify; 2250 unsigned char o_reify = anfd->reify;
1589 2251
1590 anfd->reify = 0; 2252 anfd->reify = 0;
1591 2253
1592 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2254 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1593 { 2255 {
1594 anfd->events = 0; 2256 anfd->events = 0;
1595 2257
1596 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2258 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1597 anfd->events |= (unsigned char)w->events; 2259 anfd->events |= (unsigned char)w->events;
… …
1606 2268
1607 fdchangecnt = 0; 2269 fdchangecnt = 0;
1608} 2270}
1609 2271
1610/* something about the given fd changed */ 2272/* something about the given fd changed */
1611inline_size void 2273inline_size
2274void
1612fd_change (EV_P_ int fd, int flags) 2275fd_change (EV_P_ int fd, int flags)
1613{ 2276{
1614 unsigned char reify = anfds [fd].reify; 2277 unsigned char reify = anfds [fd].reify;
1615 anfds [fd].reify |= flags; 2278 anfds [fd].reify |= flags;
1616 2279
1617 if (expect_true (!reify)) 2280 if (ecb_expect_true (!reify))
1618 { 2281 {
1619 ++fdchangecnt; 2282 ++fdchangecnt;
1620 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2283 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1621 fdchanges [fdchangecnt - 1] = fd; 2284 fdchanges [fdchangecnt - 1] = fd;
1622 } 2285 }
1623} 2286}
1624 2287
1625/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2288/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1626inline_speed void ecb_cold 2289inline_speed ecb_cold void
1627fd_kill (EV_P_ int fd) 2290fd_kill (EV_P_ int fd)
1628{ 2291{
1629 ev_io *w; 2292 ev_io *w;
1630 2293
1631 while ((w = (ev_io *)anfds [fd].head)) 2294 while ((w = (ev_io *)anfds [fd].head))
… …
1634 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2297 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1635 } 2298 }
1636} 2299}
1637 2300
1638/* check whether the given fd is actually valid, for error recovery */ 2301/* check whether the given fd is actually valid, for error recovery */
1639inline_size int ecb_cold 2302inline_size ecb_cold int
1640fd_valid (int fd) 2303fd_valid (int fd)
1641{ 2304{
1642#ifdef _WIN32 2305#ifdef _WIN32
1643 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2306 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1644#else 2307#else
1645 return fcntl (fd, F_GETFD) != -1; 2308 return fcntl (fd, F_GETFD) != -1;
1646#endif 2309#endif
1647} 2310}
1648 2311
1649/* called on EBADF to verify fds */ 2312/* called on EBADF to verify fds */
1650static void noinline ecb_cold 2313ecb_noinline ecb_cold
2314static void
1651fd_ebadf (EV_P) 2315fd_ebadf (EV_P)
1652{ 2316{
1653 int fd; 2317 int fd;
1654 2318
1655 for (fd = 0; fd < anfdmax; ++fd) 2319 for (fd = 0; fd < anfdmax; ++fd)
… …
1657 if (!fd_valid (fd) && errno == EBADF) 2321 if (!fd_valid (fd) && errno == EBADF)
1658 fd_kill (EV_A_ fd); 2322 fd_kill (EV_A_ fd);
1659} 2323}
1660 2324
1661/* called on ENOMEM in select/poll to kill some fds and retry */ 2325/* called on ENOMEM in select/poll to kill some fds and retry */
1662static void noinline ecb_cold 2326ecb_noinline ecb_cold
2327static void
1663fd_enomem (EV_P) 2328fd_enomem (EV_P)
1664{ 2329{
1665 int fd; 2330 int fd;
1666 2331
1667 for (fd = anfdmax; fd--; ) 2332 for (fd = anfdmax; fd--; )
… …
1671 break; 2336 break;
1672 } 2337 }
1673} 2338}
1674 2339
1675/* usually called after fork if backend needs to re-arm all fds from scratch */ 2340/* usually called after fork if backend needs to re-arm all fds from scratch */
1676static void noinline 2341ecb_noinline
2342static void
1677fd_rearm_all (EV_P) 2343fd_rearm_all (EV_P)
1678{ 2344{
1679 int fd; 2345 int fd;
1680 2346
1681 for (fd = 0; fd < anfdmax; ++fd) 2347 for (fd = 0; fd < anfdmax; ++fd)
… …
1734 ev_tstamp minat; 2400 ev_tstamp minat;
1735 ANHE *minpos; 2401 ANHE *minpos;
1736 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2402 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1737 2403
1738 /* find minimum child */ 2404 /* find minimum child */
1739 if (expect_true (pos + DHEAP - 1 < E)) 2405 if (ecb_expect_true (pos + DHEAP - 1 < E))
1740 { 2406 {
1741 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2407 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1742 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2408 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1743 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2409 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1744 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2410 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1745 } 2411 }
1746 else if (pos < E) 2412 else if (pos < E)
1747 { 2413 {
1748 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2414 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1749 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2415 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1750 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2416 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1751 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2417 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1752 } 2418 }
1753 else 2419 else
1754 break; 2420 break;
1755 2421
1756 if (ANHE_at (he) <= minat) 2422 if (ANHE_at (he) <= minat)
… …
1764 2430
1765 heap [k] = he; 2431 heap [k] = he;
1766 ev_active (ANHE_w (he)) = k; 2432 ev_active (ANHE_w (he)) = k;
1767} 2433}
1768 2434
1769#else /* 4HEAP */ 2435#else /* not 4HEAP */
1770 2436
1771#define HEAP0 1 2437#define HEAP0 1
1772#define HPARENT(k) ((k) >> 1) 2438#define HPARENT(k) ((k) >> 1)
1773#define UPHEAP_DONE(p,k) (!(p)) 2439#define UPHEAP_DONE(p,k) (!(p))
1774 2440
… …
1862 2528
1863/*****************************************************************************/ 2529/*****************************************************************************/
1864 2530
1865#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2531#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1866 2532
1867static void noinline ecb_cold 2533ecb_noinline ecb_cold
2534static void
1868evpipe_init (EV_P) 2535evpipe_init (EV_P)
1869{ 2536{
1870 if (!ev_is_active (&pipe_w)) 2537 if (!ev_is_active (&pipe_w))
1871 { 2538 {
1872 int fds [2]; 2539 int fds [2];
… …
1883 while (pipe (fds)) 2550 while (pipe (fds))
1884 ev_syserr ("(libev) error creating signal/async pipe"); 2551 ev_syserr ("(libev) error creating signal/async pipe");
1885 2552
1886 fd_intern (fds [0]); 2553 fd_intern (fds [0]);
1887 } 2554 }
1888
1889 fd_intern (fds [1]);
1890 2555
1891 evpipe [0] = fds [0]; 2556 evpipe [0] = fds [0];
1892 2557
1893 if (evpipe [1] < 0) 2558 if (evpipe [1] < 0)
1894 evpipe [1] = fds [1]; /* first call, set write fd */ 2559 evpipe [1] = fds [1]; /* first call, set write fd */
… …
1901 2566
1902 dup2 (fds [1], evpipe [1]); 2567 dup2 (fds [1], evpipe [1]);
1903 close (fds [1]); 2568 close (fds [1]);
1904 } 2569 }
1905 2570
2571 fd_intern (evpipe [1]);
2572
1906 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2573 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1907 ev_io_start (EV_A_ &pipe_w); 2574 ev_io_start (EV_A_ &pipe_w);
1908 ev_unref (EV_A); /* watcher should not keep loop alive */ 2575 ev_unref (EV_A); /* watcher should not keep loop alive */
1909 } 2576 }
1910} 2577}
… …
1912inline_speed void 2579inline_speed void
1913evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2580evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1914{ 2581{
1915 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2582 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1916 2583
1917 if (expect_true (*flag)) 2584 if (ecb_expect_true (*flag))
1918 return; 2585 return;
1919 2586
1920 *flag = 1; 2587 *flag = 1;
1921 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2588 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1922 2589
… …
1943#endif 2610#endif
1944 { 2611 {
1945#ifdef _WIN32 2612#ifdef _WIN32
1946 WSABUF buf; 2613 WSABUF buf;
1947 DWORD sent; 2614 DWORD sent;
1948 buf.buf = &buf; 2615 buf.buf = (char *)&buf;
1949 buf.len = 1; 2616 buf.len = 1;
1950 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2617 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1951#else 2618#else
1952 write (evpipe [1], &(evpipe [1]), 1); 2619 write (evpipe [1], &(evpipe [1]), 1);
1953#endif 2620#endif
… …
1999 sig_pending = 0; 2666 sig_pending = 0;
2000 2667
2001 ECB_MEMORY_FENCE; 2668 ECB_MEMORY_FENCE;
2002 2669
2003 for (i = EV_NSIG - 1; i--; ) 2670 for (i = EV_NSIG - 1; i--; )
2004 if (expect_false (signals [i].pending)) 2671 if (ecb_expect_false (signals [i].pending))
2005 ev_feed_signal_event (EV_A_ i + 1); 2672 ev_feed_signal_event (EV_A_ i + 1);
2006 } 2673 }
2007#endif 2674#endif
2008 2675
2009#if EV_ASYNC_ENABLE 2676#if EV_ASYNC_ENABLE
… …
2025} 2692}
2026 2693
2027/*****************************************************************************/ 2694/*****************************************************************************/
2028 2695
2029void 2696void
2030ev_feed_signal (int signum) EV_THROW 2697ev_feed_signal (int signum) EV_NOEXCEPT
2031{ 2698{
2032#if EV_MULTIPLICITY 2699#if EV_MULTIPLICITY
2700 EV_P;
2033 ECB_MEMORY_FENCE_ACQUIRE; 2701 ECB_MEMORY_FENCE_ACQUIRE;
2034 EV_P = signals [signum - 1].loop; 2702 EV_A = signals [signum - 1].loop;
2035 2703
2036 if (!EV_A) 2704 if (!EV_A)
2037 return; 2705 return;
2038#endif 2706#endif
2039 2707
… …
2049#endif 2717#endif
2050 2718
2051 ev_feed_signal (signum); 2719 ev_feed_signal (signum);
2052} 2720}
2053 2721
2054void noinline 2722ecb_noinline
2723void
2055ev_feed_signal_event (EV_P_ int signum) EV_THROW 2724ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2056{ 2725{
2057 WL w; 2726 WL w;
2058 2727
2059 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2728 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2060 return; 2729 return;
2061 2730
2062 --signum; 2731 --signum;
2063 2732
2064#if EV_MULTIPLICITY 2733#if EV_MULTIPLICITY
2065 /* it is permissible to try to feed a signal to the wrong loop */ 2734 /* it is permissible to try to feed a signal to the wrong loop */
2066 /* or, likely more useful, feeding a signal nobody is waiting for */ 2735 /* or, likely more useful, feeding a signal nobody is waiting for */
2067 2736
2068 if (expect_false (signals [signum].loop != EV_A)) 2737 if (ecb_expect_false (signals [signum].loop != EV_A))
2069 return; 2738 return;
2070#endif 2739#endif
2071 2740
2072 signals [signum].pending = 0; 2741 signals [signum].pending = 0;
2073 ECB_MEMORY_FENCE_RELEASE; 2742 ECB_MEMORY_FENCE_RELEASE;
… …
2169# include "ev_kqueue.c" 2838# include "ev_kqueue.c"
2170#endif 2839#endif
2171#if EV_USE_EPOLL 2840#if EV_USE_EPOLL
2172# include "ev_epoll.c" 2841# include "ev_epoll.c"
2173#endif 2842#endif
2843#if EV_USE_LINUXAIO
2844# include "ev_linuxaio.c"
2845#endif
2846#if EV_USE_IOURING
2847# include "ev_iouring.c"
2848#endif
2174#if EV_USE_POLL 2849#if EV_USE_POLL
2175# include "ev_poll.c" 2850# include "ev_poll.c"
2176#endif 2851#endif
2177#if EV_USE_SELECT 2852#if EV_USE_SELECT
2178# include "ev_select.c" 2853# include "ev_select.c"
2179#endif 2854#endif
2180 2855
2181int ecb_cold 2856ecb_cold int
2182ev_version_major (void) EV_THROW 2857ev_version_major (void) EV_NOEXCEPT
2183{ 2858{
2184 return EV_VERSION_MAJOR; 2859 return EV_VERSION_MAJOR;
2185} 2860}
2186 2861
2187int ecb_cold 2862ecb_cold int
2188ev_version_minor (void) EV_THROW 2863ev_version_minor (void) EV_NOEXCEPT
2189{ 2864{
2190 return EV_VERSION_MINOR; 2865 return EV_VERSION_MINOR;
2191} 2866}
2192 2867
2193/* return true if we are running with elevated privileges and should ignore env variables */ 2868/* return true if we are running with elevated privileges and should ignore env variables */
2194int inline_size ecb_cold 2869inline_size ecb_cold int
2195enable_secure (void) 2870enable_secure (void)
2196{ 2871{
2197#ifdef _WIN32 2872#ifdef _WIN32
2198 return 0; 2873 return 0;
2199#else 2874#else
2200 return getuid () != geteuid () 2875 return getuid () != geteuid ()
2201 || getgid () != getegid (); 2876 || getgid () != getegid ();
2202#endif 2877#endif
2203} 2878}
2204 2879
2205unsigned int ecb_cold 2880ecb_cold
2881unsigned int
2206ev_supported_backends (void) EV_THROW 2882ev_supported_backends (void) EV_NOEXCEPT
2207{ 2883{
2208 unsigned int flags = 0; 2884 unsigned int flags = 0;
2209 2885
2210 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2886 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2211 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2887 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2212 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2888 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2889 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2890 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2213 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2891 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2214 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2892 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2215 2893
2216 return flags; 2894 return flags;
2217} 2895}
2218 2896
2219unsigned int ecb_cold 2897ecb_cold
2898unsigned int
2220ev_recommended_backends (void) EV_THROW 2899ev_recommended_backends (void) EV_NOEXCEPT
2221{ 2900{
2222 unsigned int flags = ev_supported_backends (); 2901 unsigned int flags = ev_supported_backends ();
2223 2902
2224#ifndef __NetBSD__ 2903#ifndef __NetBSD__
2225 /* kqueue is borked on everything but netbsd apparently */ 2904 /* kqueue is borked on everything but netbsd apparently */
… …
2233#endif 2912#endif
2234#ifdef __FreeBSD__ 2913#ifdef __FreeBSD__
2235 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2914 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2236#endif 2915#endif
2237 2916
2917 /* TODO: linuxaio is very experimental */
2918#if !EV_RECOMMEND_LINUXAIO
2919 flags &= ~EVBACKEND_LINUXAIO;
2920#endif
2921 /* TODO: linuxaio is super experimental */
2922#if !EV_RECOMMEND_IOURING
2923 flags &= ~EVBACKEND_IOURING;
2924#endif
2925
2238 return flags; 2926 return flags;
2239} 2927}
2240 2928
2241unsigned int ecb_cold 2929ecb_cold
2930unsigned int
2242ev_embeddable_backends (void) EV_THROW 2931ev_embeddable_backends (void) EV_NOEXCEPT
2243{ 2932{
2244 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2933 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2245 2934
2246 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2935 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2247 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2936 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2248 flags &= ~EVBACKEND_EPOLL; 2937 flags &= ~EVBACKEND_EPOLL;
2249 2938
2939 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2940
2941 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2942 * because our backend_fd is the epoll fd we need as fallback.
2943 * if the kernel ever is fixed, this might change...
2944 */
2945
2250 return flags; 2946 return flags;
2251} 2947}
2252 2948
2253unsigned int 2949unsigned int
2254ev_backend (EV_P) EV_THROW 2950ev_backend (EV_P) EV_NOEXCEPT
2255{ 2951{
2256 return backend; 2952 return backend;
2257} 2953}
2258 2954
2259#if EV_FEATURE_API 2955#if EV_FEATURE_API
2260unsigned int 2956unsigned int
2261ev_iteration (EV_P) EV_THROW 2957ev_iteration (EV_P) EV_NOEXCEPT
2262{ 2958{
2263 return loop_count; 2959 return loop_count;
2264} 2960}
2265 2961
2266unsigned int 2962unsigned int
2267ev_depth (EV_P) EV_THROW 2963ev_depth (EV_P) EV_NOEXCEPT
2268{ 2964{
2269 return loop_depth; 2965 return loop_depth;
2270} 2966}
2271 2967
2272void 2968void
2273ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2969ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2274{ 2970{
2275 io_blocktime = interval; 2971 io_blocktime = interval;
2276} 2972}
2277 2973
2278void 2974void
2279ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2975ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2280{ 2976{
2281 timeout_blocktime = interval; 2977 timeout_blocktime = interval;
2282} 2978}
2283 2979
2284void 2980void
2285ev_set_userdata (EV_P_ void *data) EV_THROW 2981ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2286{ 2982{
2287 userdata = data; 2983 userdata = data;
2288} 2984}
2289 2985
2290void * 2986void *
2291ev_userdata (EV_P) EV_THROW 2987ev_userdata (EV_P) EV_NOEXCEPT
2292{ 2988{
2293 return userdata; 2989 return userdata;
2294} 2990}
2295 2991
2296void 2992void
2297ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2993ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2298{ 2994{
2299 invoke_cb = invoke_pending_cb; 2995 invoke_cb = invoke_pending_cb;
2300} 2996}
2301 2997
2302void 2998void
2303ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2999ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2304{ 3000{
2305 release_cb = release; 3001 release_cb = release;
2306 acquire_cb = acquire; 3002 acquire_cb = acquire;
2307} 3003}
2308#endif 3004#endif
2309 3005
2310/* initialise a loop structure, must be zero-initialised */ 3006/* initialise a loop structure, must be zero-initialised */
2311static void noinline ecb_cold 3007ecb_noinline ecb_cold
3008static void
2312loop_init (EV_P_ unsigned int flags) EV_THROW 3009loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2313{ 3010{
2314 if (!backend) 3011 if (!backend)
2315 { 3012 {
2316 origflags = flags; 3013 origflags = flags;
2317 3014
… …
2375 3072
2376 if (!(flags & EVBACKEND_MASK)) 3073 if (!(flags & EVBACKEND_MASK))
2377 flags |= ev_recommended_backends (); 3074 flags |= ev_recommended_backends ();
2378 3075
2379#if EV_USE_IOCP 3076#if EV_USE_IOCP
2380 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3077 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2381#endif 3078#endif
2382#if EV_USE_PORT 3079#if EV_USE_PORT
2383 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3080 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2384#endif 3081#endif
2385#if EV_USE_KQUEUE 3082#if EV_USE_KQUEUE
2386 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3083 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3084#endif
3085#if EV_USE_IOURING
3086 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3087#endif
3088#if EV_USE_LINUXAIO
3089 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2387#endif 3090#endif
2388#if EV_USE_EPOLL 3091#if EV_USE_EPOLL
2389 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3092 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2390#endif 3093#endif
2391#if EV_USE_POLL 3094#if EV_USE_POLL
2392 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3095 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2393#endif 3096#endif
2394#if EV_USE_SELECT 3097#if EV_USE_SELECT
2395 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3098 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2396#endif 3099#endif
2397 3100
2398 ev_prepare_init (&pending_w, pendingcb); 3101 ev_prepare_init (&pending_w, pendingcb);
2399 3102
2400#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3103#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2403#endif 3106#endif
2404 } 3107 }
2405} 3108}
2406 3109
2407/* free up a loop structure */ 3110/* free up a loop structure */
2408void ecb_cold 3111ecb_cold
3112void
2409ev_loop_destroy (EV_P) 3113ev_loop_destroy (EV_P)
2410{ 3114{
2411 int i; 3115 int i;
2412 3116
2413#if EV_MULTIPLICITY 3117#if EV_MULTIPLICITY
… …
2416 return; 3120 return;
2417#endif 3121#endif
2418 3122
2419#if EV_CLEANUP_ENABLE 3123#if EV_CLEANUP_ENABLE
2420 /* queue cleanup watchers (and execute them) */ 3124 /* queue cleanup watchers (and execute them) */
2421 if (expect_false (cleanupcnt)) 3125 if (ecb_expect_false (cleanupcnt))
2422 { 3126 {
2423 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3127 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2424 EV_INVOKE_PENDING; 3128 EV_INVOKE_PENDING;
2425 } 3129 }
2426#endif 3130#endif
… …
2454 3158
2455 if (backend_fd >= 0) 3159 if (backend_fd >= 0)
2456 close (backend_fd); 3160 close (backend_fd);
2457 3161
2458#if EV_USE_IOCP 3162#if EV_USE_IOCP
2459 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3163 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2460#endif 3164#endif
2461#if EV_USE_PORT 3165#if EV_USE_PORT
2462 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3166 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2463#endif 3167#endif
2464#if EV_USE_KQUEUE 3168#if EV_USE_KQUEUE
2465 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3169 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3170#endif
3171#if EV_USE_IOURING
3172 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3173#endif
3174#if EV_USE_LINUXAIO
3175 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2466#endif 3176#endif
2467#if EV_USE_EPOLL 3177#if EV_USE_EPOLL
2468 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3178 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2469#endif 3179#endif
2470#if EV_USE_POLL 3180#if EV_USE_POLL
2471 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3181 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2472#endif 3182#endif
2473#if EV_USE_SELECT 3183#if EV_USE_SELECT
2474 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3184 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2475#endif 3185#endif
2476 3186
2477 for (i = NUMPRI; i--; ) 3187 for (i = NUMPRI; i--; )
2478 { 3188 {
2479 array_free (pending, [i]); 3189 array_free (pending, [i]);
… …
2521 3231
2522inline_size void 3232inline_size void
2523loop_fork (EV_P) 3233loop_fork (EV_P)
2524{ 3234{
2525#if EV_USE_PORT 3235#if EV_USE_PORT
2526 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3236 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2527#endif 3237#endif
2528#if EV_USE_KQUEUE 3238#if EV_USE_KQUEUE
2529 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3239 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3240#endif
3241#if EV_USE_IOURING
3242 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3243#endif
3244#if EV_USE_LINUXAIO
3245 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2530#endif 3246#endif
2531#if EV_USE_EPOLL 3247#if EV_USE_EPOLL
2532 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3248 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2533#endif 3249#endif
2534#if EV_USE_INOTIFY 3250#if EV_USE_INOTIFY
2535 infy_fork (EV_A); 3251 infy_fork (EV_A);
2536#endif 3252#endif
2537 3253
2538#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3254#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2539 if (ev_is_active (&pipe_w)) 3255 if (ev_is_active (&pipe_w) && postfork != 2)
2540 { 3256 {
2541 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3257 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2542 3258
2543 ev_ref (EV_A); 3259 ev_ref (EV_A);
2544 ev_io_stop (EV_A_ &pipe_w); 3260 ev_io_stop (EV_A_ &pipe_w);
… …
2555 postfork = 0; 3271 postfork = 0;
2556} 3272}
2557 3273
2558#if EV_MULTIPLICITY 3274#if EV_MULTIPLICITY
2559 3275
3276ecb_cold
2560struct ev_loop * ecb_cold 3277struct ev_loop *
2561ev_loop_new (unsigned int flags) EV_THROW 3278ev_loop_new (unsigned int flags) EV_NOEXCEPT
2562{ 3279{
2563 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3280 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2564 3281
2565 memset (EV_A, 0, sizeof (struct ev_loop)); 3282 memset (EV_A, 0, sizeof (struct ev_loop));
2566 loop_init (EV_A_ flags); 3283 loop_init (EV_A_ flags);
… …
2573} 3290}
2574 3291
2575#endif /* multiplicity */ 3292#endif /* multiplicity */
2576 3293
2577#if EV_VERIFY 3294#if EV_VERIFY
2578static void noinline ecb_cold 3295ecb_noinline ecb_cold
3296static void
2579verify_watcher (EV_P_ W w) 3297verify_watcher (EV_P_ W w)
2580{ 3298{
2581 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3299 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2582 3300
2583 if (w->pending) 3301 if (w->pending)
2584 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3302 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2585} 3303}
2586 3304
2587static void noinline ecb_cold 3305ecb_noinline ecb_cold
3306static void
2588verify_heap (EV_P_ ANHE *heap, int N) 3307verify_heap (EV_P_ ANHE *heap, int N)
2589{ 3308{
2590 int i; 3309 int i;
2591 3310
2592 for (i = HEAP0; i < N + HEAP0; ++i) 3311 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2597 3316
2598 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3317 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2599 } 3318 }
2600} 3319}
2601 3320
2602static void noinline ecb_cold 3321ecb_noinline ecb_cold
3322static void
2603array_verify (EV_P_ W *ws, int cnt) 3323array_verify (EV_P_ W *ws, int cnt)
2604{ 3324{
2605 while (cnt--) 3325 while (cnt--)
2606 { 3326 {
2607 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3327 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2610} 3330}
2611#endif 3331#endif
2612 3332
2613#if EV_FEATURE_API 3333#if EV_FEATURE_API
2614void ecb_cold 3334void ecb_cold
2615ev_verify (EV_P) EV_THROW 3335ev_verify (EV_P) EV_NOEXCEPT
2616{ 3336{
2617#if EV_VERIFY 3337#if EV_VERIFY
2618 int i; 3338 int i;
2619 WL w, w2; 3339 WL w, w2;
2620 3340
… …
2696#endif 3416#endif
2697} 3417}
2698#endif 3418#endif
2699 3419
2700#if EV_MULTIPLICITY 3420#if EV_MULTIPLICITY
3421ecb_cold
2701struct ev_loop * ecb_cold 3422struct ev_loop *
2702#else 3423#else
2703int 3424int
2704#endif 3425#endif
2705ev_default_loop (unsigned int flags) EV_THROW 3426ev_default_loop (unsigned int flags) EV_NOEXCEPT
2706{ 3427{
2707 if (!ev_default_loop_ptr) 3428 if (!ev_default_loop_ptr)
2708 { 3429 {
2709#if EV_MULTIPLICITY 3430#if EV_MULTIPLICITY
2710 EV_P = ev_default_loop_ptr = &default_loop_struct; 3431 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2729 3450
2730 return ev_default_loop_ptr; 3451 return ev_default_loop_ptr;
2731} 3452}
2732 3453
2733void 3454void
2734ev_loop_fork (EV_P) EV_THROW 3455ev_loop_fork (EV_P) EV_NOEXCEPT
2735{ 3456{
2736 postfork = 1; 3457 postfork = 1;
2737} 3458}
2738 3459
2739/*****************************************************************************/ 3460/*****************************************************************************/
… …
2743{ 3464{
2744 EV_CB_INVOKE ((W)w, revents); 3465 EV_CB_INVOKE ((W)w, revents);
2745} 3466}
2746 3467
2747unsigned int 3468unsigned int
2748ev_pending_count (EV_P) EV_THROW 3469ev_pending_count (EV_P) EV_NOEXCEPT
2749{ 3470{
2750 int pri; 3471 int pri;
2751 unsigned int count = 0; 3472 unsigned int count = 0;
2752 3473
2753 for (pri = NUMPRI; pri--; ) 3474 for (pri = NUMPRI; pri--; )
2754 count += pendingcnt [pri]; 3475 count += pendingcnt [pri];
2755 3476
2756 return count; 3477 return count;
2757} 3478}
2758 3479
2759void noinline 3480ecb_noinline
3481void
2760ev_invoke_pending (EV_P) 3482ev_invoke_pending (EV_P)
2761{ 3483{
2762 pendingpri = NUMPRI; 3484 pendingpri = NUMPRI;
2763 3485
2764 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3486 do
2765 { 3487 {
2766 --pendingpri; 3488 --pendingpri;
2767 3489
3490 /* pendingpri possibly gets modified in the inner loop */
2768 while (pendingcnt [pendingpri]) 3491 while (pendingcnt [pendingpri])
2769 { 3492 {
2770 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3493 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2771 3494
2772 p->w->pending = 0; 3495 p->w->pending = 0;
2773 EV_CB_INVOKE (p->w, p->events); 3496 EV_CB_INVOKE (p->w, p->events);
2774 EV_FREQUENT_CHECK; 3497 EV_FREQUENT_CHECK;
2775 } 3498 }
2776 } 3499 }
3500 while (pendingpri);
2777} 3501}
2778 3502
2779#if EV_IDLE_ENABLE 3503#if EV_IDLE_ENABLE
2780/* make idle watchers pending. this handles the "call-idle */ 3504/* make idle watchers pending. this handles the "call-idle */
2781/* only when higher priorities are idle" logic */ 3505/* only when higher priorities are idle" logic */
2782inline_size void 3506inline_size void
2783idle_reify (EV_P) 3507idle_reify (EV_P)
2784{ 3508{
2785 if (expect_false (idleall)) 3509 if (ecb_expect_false (idleall))
2786 { 3510 {
2787 int pri; 3511 int pri;
2788 3512
2789 for (pri = NUMPRI; pri--; ) 3513 for (pri = NUMPRI; pri--; )
2790 { 3514 {
… …
2839 } 3563 }
2840} 3564}
2841 3565
2842#if EV_PERIODIC_ENABLE 3566#if EV_PERIODIC_ENABLE
2843 3567
2844static void noinline 3568ecb_noinline
3569static void
2845periodic_recalc (EV_P_ ev_periodic *w) 3570periodic_recalc (EV_P_ ev_periodic *w)
2846{ 3571{
2847 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3572 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2848 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3573 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2849 3574
… …
2851 while (at <= ev_rt_now) 3576 while (at <= ev_rt_now)
2852 { 3577 {
2853 ev_tstamp nat = at + w->interval; 3578 ev_tstamp nat = at + w->interval;
2854 3579
2855 /* when resolution fails us, we use ev_rt_now */ 3580 /* when resolution fails us, we use ev_rt_now */
2856 if (expect_false (nat == at)) 3581 if (ecb_expect_false (nat == at))
2857 { 3582 {
2858 at = ev_rt_now; 3583 at = ev_rt_now;
2859 break; 3584 break;
2860 } 3585 }
2861 3586
… …
2907 } 3632 }
2908} 3633}
2909 3634
2910/* simply recalculate all periodics */ 3635/* simply recalculate all periodics */
2911/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3636/* TODO: maybe ensure that at least one event happens when jumping forward? */
2912static void noinline ecb_cold 3637ecb_noinline ecb_cold
3638static void
2913periodics_reschedule (EV_P) 3639periodics_reschedule (EV_P)
2914{ 3640{
2915 int i; 3641 int i;
2916 3642
2917 /* adjust periodics after time jump */ 3643 /* adjust periodics after time jump */
… …
2930 reheap (periodics, periodiccnt); 3656 reheap (periodics, periodiccnt);
2931} 3657}
2932#endif 3658#endif
2933 3659
2934/* adjust all timers by a given offset */ 3660/* adjust all timers by a given offset */
2935static void noinline ecb_cold 3661ecb_noinline ecb_cold
3662static void
2936timers_reschedule (EV_P_ ev_tstamp adjust) 3663timers_reschedule (EV_P_ ev_tstamp adjust)
2937{ 3664{
2938 int i; 3665 int i;
2939 3666
2940 for (i = 0; i < timercnt; ++i) 3667 for (i = 0; i < timercnt; ++i)
… …
2949/* also detect if there was a timejump, and act accordingly */ 3676/* also detect if there was a timejump, and act accordingly */
2950inline_speed void 3677inline_speed void
2951time_update (EV_P_ ev_tstamp max_block) 3678time_update (EV_P_ ev_tstamp max_block)
2952{ 3679{
2953#if EV_USE_MONOTONIC 3680#if EV_USE_MONOTONIC
2954 if (expect_true (have_monotonic)) 3681 if (ecb_expect_true (have_monotonic))
2955 { 3682 {
2956 int i; 3683 int i;
2957 ev_tstamp odiff = rtmn_diff; 3684 ev_tstamp odiff = rtmn_diff;
2958 3685
2959 mn_now = get_clock (); 3686 mn_now = get_clock ();
2960 3687
2961 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3688 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
2962 /* interpolate in the meantime */ 3689 /* interpolate in the meantime */
2963 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3690 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
2964 { 3691 {
2965 ev_rt_now = rtmn_diff + mn_now; 3692 ev_rt_now = rtmn_diff + mn_now;
2966 return; 3693 return;
2967 } 3694 }
2968 3695
… …
2982 ev_tstamp diff; 3709 ev_tstamp diff;
2983 rtmn_diff = ev_rt_now - mn_now; 3710 rtmn_diff = ev_rt_now - mn_now;
2984 3711
2985 diff = odiff - rtmn_diff; 3712 diff = odiff - rtmn_diff;
2986 3713
2987 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3714 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2988 return; /* all is well */ 3715 return; /* all is well */
2989 3716
2990 ev_rt_now = ev_time (); 3717 ev_rt_now = ev_time ();
2991 mn_now = get_clock (); 3718 mn_now = get_clock ();
2992 now_floor = mn_now; 3719 now_floor = mn_now;
… …
3001 else 3728 else
3002#endif 3729#endif
3003 { 3730 {
3004 ev_rt_now = ev_time (); 3731 ev_rt_now = ev_time ();
3005 3732
3006 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3733 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3007 { 3734 {
3008 /* adjust timers. this is easy, as the offset is the same for all of them */ 3735 /* adjust timers. this is easy, as the offset is the same for all of them */
3009 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3736 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3010#if EV_PERIODIC_ENABLE 3737#if EV_PERIODIC_ENABLE
3011 periodics_reschedule (EV_A); 3738 periodics_reschedule (EV_A);
… …
3034#if EV_VERIFY >= 2 3761#if EV_VERIFY >= 2
3035 ev_verify (EV_A); 3762 ev_verify (EV_A);
3036#endif 3763#endif
3037 3764
3038#ifndef _WIN32 3765#ifndef _WIN32
3039 if (expect_false (curpid)) /* penalise the forking check even more */ 3766 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3040 if (expect_false (getpid () != curpid)) 3767 if (ecb_expect_false (getpid () != curpid))
3041 { 3768 {
3042 curpid = getpid (); 3769 curpid = getpid ();
3043 postfork = 1; 3770 postfork = 1;
3044 } 3771 }
3045#endif 3772#endif
3046 3773
3047#if EV_FORK_ENABLE 3774#if EV_FORK_ENABLE
3048 /* we might have forked, so queue fork handlers */ 3775 /* we might have forked, so queue fork handlers */
3049 if (expect_false (postfork)) 3776 if (ecb_expect_false (postfork))
3050 if (forkcnt) 3777 if (forkcnt)
3051 { 3778 {
3052 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3779 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3053 EV_INVOKE_PENDING; 3780 EV_INVOKE_PENDING;
3054 } 3781 }
3055#endif 3782#endif
3056 3783
3057#if EV_PREPARE_ENABLE 3784#if EV_PREPARE_ENABLE
3058 /* queue prepare watchers (and execute them) */ 3785 /* queue prepare watchers (and execute them) */
3059 if (expect_false (preparecnt)) 3786 if (ecb_expect_false (preparecnt))
3060 { 3787 {
3061 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3788 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3062 EV_INVOKE_PENDING; 3789 EV_INVOKE_PENDING;
3063 } 3790 }
3064#endif 3791#endif
3065 3792
3066 if (expect_false (loop_done)) 3793 if (ecb_expect_false (loop_done))
3067 break; 3794 break;
3068 3795
3069 /* we might have forked, so reify kernel state if necessary */ 3796 /* we might have forked, so reify kernel state if necessary */
3070 if (expect_false (postfork)) 3797 if (ecb_expect_false (postfork))
3071 loop_fork (EV_A); 3798 loop_fork (EV_A);
3072 3799
3073 /* update fd-related kernel structures */ 3800 /* update fd-related kernel structures */
3074 fd_reify (EV_A); 3801 fd_reify (EV_A);
3075 3802
… …
3087 /* from now on, we want a pipe-wake-up */ 3814 /* from now on, we want a pipe-wake-up */
3088 pipe_write_wanted = 1; 3815 pipe_write_wanted = 1;
3089 3816
3090 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3817 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3091 3818
3092 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3819 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3093 { 3820 {
3094 waittime = MAX_BLOCKTIME; 3821 waittime = MAX_BLOCKTIME;
3095 3822
3096 if (timercnt) 3823 if (timercnt)
3097 { 3824 {
… …
3106 if (waittime > to) waittime = to; 3833 if (waittime > to) waittime = to;
3107 } 3834 }
3108#endif 3835#endif
3109 3836
3110 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3837 /* don't let timeouts decrease the waittime below timeout_blocktime */
3111 if (expect_false (waittime < timeout_blocktime)) 3838 if (ecb_expect_false (waittime < timeout_blocktime))
3112 waittime = timeout_blocktime; 3839 waittime = timeout_blocktime;
3113 3840
3114 /* at this point, we NEED to wait, so we have to ensure */ 3841 /* at this point, we NEED to wait, so we have to ensure */
3115 /* to pass a minimum nonzero value to the backend */ 3842 /* to pass a minimum nonzero value to the backend */
3116 if (expect_false (waittime < backend_mintime)) 3843 if (ecb_expect_false (waittime < backend_mintime))
3117 waittime = backend_mintime; 3844 waittime = backend_mintime;
3118 3845
3119 /* extra check because io_blocktime is commonly 0 */ 3846 /* extra check because io_blocktime is commonly 0 */
3120 if (expect_false (io_blocktime)) 3847 if (ecb_expect_false (io_blocktime))
3121 { 3848 {
3122 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3849 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3123 3850
3124 if (sleeptime > waittime - backend_mintime) 3851 if (sleeptime > waittime - backend_mintime)
3125 sleeptime = waittime - backend_mintime; 3852 sleeptime = waittime - backend_mintime;
3126 3853
3127 if (expect_true (sleeptime > 0.)) 3854 if (ecb_expect_true (sleeptime > 0.))
3128 { 3855 {
3129 ev_sleep (sleeptime); 3856 ev_sleep (sleeptime);
3130 waittime -= sleeptime; 3857 waittime -= sleeptime;
3131 } 3858 }
3132 } 3859 }
… …
3146 { 3873 {
3147 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3874 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3148 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3875 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3149 } 3876 }
3150 3877
3151
3152 /* update ev_rt_now, do magic */ 3878 /* update ev_rt_now, do magic */
3153 time_update (EV_A_ waittime + sleeptime); 3879 time_update (EV_A_ waittime + sleeptime);
3154 } 3880 }
3155 3881
3156 /* queue pending timers and reschedule them */ 3882 /* queue pending timers and reschedule them */
… …
3164 idle_reify (EV_A); 3890 idle_reify (EV_A);
3165#endif 3891#endif
3166 3892
3167#if EV_CHECK_ENABLE 3893#if EV_CHECK_ENABLE
3168 /* queue check watchers, to be executed first */ 3894 /* queue check watchers, to be executed first */
3169 if (expect_false (checkcnt)) 3895 if (ecb_expect_false (checkcnt))
3170 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3896 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3171#endif 3897#endif
3172 3898
3173 EV_INVOKE_PENDING; 3899 EV_INVOKE_PENDING;
3174 } 3900 }
3175 while (expect_true ( 3901 while (ecb_expect_true (
3176 activecnt 3902 activecnt
3177 && !loop_done 3903 && !loop_done
3178 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3904 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3179 )); 3905 ));
3180 3906
… …
3187 3913
3188 return activecnt; 3914 return activecnt;
3189} 3915}
3190 3916
3191void 3917void
3192ev_break (EV_P_ int how) EV_THROW 3918ev_break (EV_P_ int how) EV_NOEXCEPT
3193{ 3919{
3194 loop_done = how; 3920 loop_done = how;
3195} 3921}
3196 3922
3197void 3923void
3198ev_ref (EV_P) EV_THROW 3924ev_ref (EV_P) EV_NOEXCEPT
3199{ 3925{
3200 ++activecnt; 3926 ++activecnt;
3201} 3927}
3202 3928
3203void 3929void
3204ev_unref (EV_P) EV_THROW 3930ev_unref (EV_P) EV_NOEXCEPT
3205{ 3931{
3206 --activecnt; 3932 --activecnt;
3207} 3933}
3208 3934
3209void 3935void
3210ev_now_update (EV_P) EV_THROW 3936ev_now_update (EV_P) EV_NOEXCEPT
3211{ 3937{
3212 time_update (EV_A_ 1e100); 3938 time_update (EV_A_ 1e100);
3213} 3939}
3214 3940
3215void 3941void
3216ev_suspend (EV_P) EV_THROW 3942ev_suspend (EV_P) EV_NOEXCEPT
3217{ 3943{
3218 ev_now_update (EV_A); 3944 ev_now_update (EV_A);
3219} 3945}
3220 3946
3221void 3947void
3222ev_resume (EV_P) EV_THROW 3948ev_resume (EV_P) EV_NOEXCEPT
3223{ 3949{
3224 ev_tstamp mn_prev = mn_now; 3950 ev_tstamp mn_prev = mn_now;
3225 3951
3226 ev_now_update (EV_A); 3952 ev_now_update (EV_A);
3227 timers_reschedule (EV_A_ mn_now - mn_prev); 3953 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3244inline_size void 3970inline_size void
3245wlist_del (WL *head, WL elem) 3971wlist_del (WL *head, WL elem)
3246{ 3972{
3247 while (*head) 3973 while (*head)
3248 { 3974 {
3249 if (expect_true (*head == elem)) 3975 if (ecb_expect_true (*head == elem))
3250 { 3976 {
3251 *head = elem->next; 3977 *head = elem->next;
3252 break; 3978 break;
3253 } 3979 }
3254 3980
… …
3266 w->pending = 0; 3992 w->pending = 0;
3267 } 3993 }
3268} 3994}
3269 3995
3270int 3996int
3271ev_clear_pending (EV_P_ void *w) EV_THROW 3997ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3272{ 3998{
3273 W w_ = (W)w; 3999 W w_ = (W)w;
3274 int pending = w_->pending; 4000 int pending = w_->pending;
3275 4001
3276 if (expect_true (pending)) 4002 if (ecb_expect_true (pending))
3277 { 4003 {
3278 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4004 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3279 p->w = (W)&pending_w; 4005 p->w = (W)&pending_w;
3280 w_->pending = 0; 4006 w_->pending = 0;
3281 return p->events; 4007 return p->events;
… …
3308 w->active = 0; 4034 w->active = 0;
3309} 4035}
3310 4036
3311/*****************************************************************************/ 4037/*****************************************************************************/
3312 4038
3313void noinline 4039ecb_noinline
4040void
3314ev_io_start (EV_P_ ev_io *w) EV_THROW 4041ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3315{ 4042{
3316 int fd = w->fd; 4043 int fd = w->fd;
3317 4044
3318 if (expect_false (ev_is_active (w))) 4045 if (ecb_expect_false (ev_is_active (w)))
3319 return; 4046 return;
3320 4047
3321 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4048 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3322 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4049 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3323 4050
4051#if EV_VERIFY >= 2
4052 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4053#endif
3324 EV_FREQUENT_CHECK; 4054 EV_FREQUENT_CHECK;
3325 4055
3326 ev_start (EV_A_ (W)w, 1); 4056 ev_start (EV_A_ (W)w, 1);
3327 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4057 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3328 wlist_add (&anfds[fd].head, (WL)w); 4058 wlist_add (&anfds[fd].head, (WL)w);
3329 4059
3330 /* common bug, apparently */ 4060 /* common bug, apparently */
3331 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4061 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3332 4062
… …
3334 w->events &= ~EV__IOFDSET; 4064 w->events &= ~EV__IOFDSET;
3335 4065
3336 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
3337} 4067}
3338 4068
3339void noinline 4069ecb_noinline
4070void
3340ev_io_stop (EV_P_ ev_io *w) EV_THROW 4071ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3341{ 4072{
3342 clear_pending (EV_A_ (W)w); 4073 clear_pending (EV_A_ (W)w);
3343 if (expect_false (!ev_is_active (w))) 4074 if (ecb_expect_false (!ev_is_active (w)))
3344 return; 4075 return;
3345 4076
3346 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4077 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3347 4078
4079#if EV_VERIFY >= 2
4080 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4081#endif
3348 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3349 4083
3350 wlist_del (&anfds[w->fd].head, (WL)w); 4084 wlist_del (&anfds[w->fd].head, (WL)w);
3351 ev_stop (EV_A_ (W)w); 4085 ev_stop (EV_A_ (W)w);
3352 4086
3353 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4087 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3354 4088
3355 EV_FREQUENT_CHECK; 4089 EV_FREQUENT_CHECK;
3356} 4090}
3357 4091
3358void noinline 4092ecb_noinline
4093void
3359ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4094ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3360{ 4095{
3361 if (expect_false (ev_is_active (w))) 4096 if (ecb_expect_false (ev_is_active (w)))
3362 return; 4097 return;
3363 4098
3364 ev_at (w) += mn_now; 4099 ev_at (w) += mn_now;
3365 4100
3366 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4101 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3367 4102
3368 EV_FREQUENT_CHECK; 4103 EV_FREQUENT_CHECK;
3369 4104
3370 ++timercnt; 4105 ++timercnt;
3371 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4106 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3372 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4107 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3373 ANHE_w (timers [ev_active (w)]) = (WT)w; 4108 ANHE_w (timers [ev_active (w)]) = (WT)w;
3374 ANHE_at_cache (timers [ev_active (w)]); 4109 ANHE_at_cache (timers [ev_active (w)]);
3375 upheap (timers, ev_active (w)); 4110 upheap (timers, ev_active (w));
3376 4111
3377 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3378 4113
3379 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4114 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3380} 4115}
3381 4116
3382void noinline 4117ecb_noinline
4118void
3383ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4119ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3384{ 4120{
3385 clear_pending (EV_A_ (W)w); 4121 clear_pending (EV_A_ (W)w);
3386 if (expect_false (!ev_is_active (w))) 4122 if (ecb_expect_false (!ev_is_active (w)))
3387 return; 4123 return;
3388 4124
3389 EV_FREQUENT_CHECK; 4125 EV_FREQUENT_CHECK;
3390 4126
3391 { 4127 {
… …
3393 4129
3394 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4130 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3395 4131
3396 --timercnt; 4132 --timercnt;
3397 4133
3398 if (expect_true (active < timercnt + HEAP0)) 4134 if (ecb_expect_true (active < timercnt + HEAP0))
3399 { 4135 {
3400 timers [active] = timers [timercnt + HEAP0]; 4136 timers [active] = timers [timercnt + HEAP0];
3401 adjustheap (timers, timercnt, active); 4137 adjustheap (timers, timercnt, active);
3402 } 4138 }
3403 } 4139 }
… …
3407 ev_stop (EV_A_ (W)w); 4143 ev_stop (EV_A_ (W)w);
3408 4144
3409 EV_FREQUENT_CHECK; 4145 EV_FREQUENT_CHECK;
3410} 4146}
3411 4147
3412void noinline 4148ecb_noinline
4149void
3413ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4150ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3414{ 4151{
3415 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
3416 4153
3417 clear_pending (EV_A_ (W)w); 4154 clear_pending (EV_A_ (W)w);
3418 4155
… …
3435 4172
3436 EV_FREQUENT_CHECK; 4173 EV_FREQUENT_CHECK;
3437} 4174}
3438 4175
3439ev_tstamp 4176ev_tstamp
3440ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4177ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3441{ 4178{
3442 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4179 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3443} 4180}
3444 4181
3445#if EV_PERIODIC_ENABLE 4182#if EV_PERIODIC_ENABLE
3446void noinline 4183ecb_noinline
4184void
3447ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4185ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3448{ 4186{
3449 if (expect_false (ev_is_active (w))) 4187 if (ecb_expect_false (ev_is_active (w)))
3450 return; 4188 return;
3451 4189
3452 if (w->reschedule_cb) 4190 if (w->reschedule_cb)
3453 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4191 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3454 else if (w->interval) 4192 else if (w->interval)
… …
3461 4199
3462 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3463 4201
3464 ++periodiccnt; 4202 ++periodiccnt;
3465 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4203 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3466 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4204 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3467 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4205 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3468 ANHE_at_cache (periodics [ev_active (w)]); 4206 ANHE_at_cache (periodics [ev_active (w)]);
3469 upheap (periodics, ev_active (w)); 4207 upheap (periodics, ev_active (w));
3470 4208
3471 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
3472 4210
3473 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4211 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3474} 4212}
3475 4213
3476void noinline 4214ecb_noinline
4215void
3477ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4216ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3478{ 4217{
3479 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3480 if (expect_false (!ev_is_active (w))) 4219 if (ecb_expect_false (!ev_is_active (w)))
3481 return; 4220 return;
3482 4221
3483 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3484 4223
3485 { 4224 {
… …
3487 4226
3488 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4227 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3489 4228
3490 --periodiccnt; 4229 --periodiccnt;
3491 4230
3492 if (expect_true (active < periodiccnt + HEAP0)) 4231 if (ecb_expect_true (active < periodiccnt + HEAP0))
3493 { 4232 {
3494 periodics [active] = periodics [periodiccnt + HEAP0]; 4233 periodics [active] = periodics [periodiccnt + HEAP0];
3495 adjustheap (periodics, periodiccnt, active); 4234 adjustheap (periodics, periodiccnt, active);
3496 } 4235 }
3497 } 4236 }
… …
3499 ev_stop (EV_A_ (W)w); 4238 ev_stop (EV_A_ (W)w);
3500 4239
3501 EV_FREQUENT_CHECK; 4240 EV_FREQUENT_CHECK;
3502} 4241}
3503 4242
3504void noinline 4243ecb_noinline
4244void
3505ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4245ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3506{ 4246{
3507 /* TODO: use adjustheap and recalculation */ 4247 /* TODO: use adjustheap and recalculation */
3508 ev_periodic_stop (EV_A_ w); 4248 ev_periodic_stop (EV_A_ w);
3509 ev_periodic_start (EV_A_ w); 4249 ev_periodic_start (EV_A_ w);
3510} 4250}
… …
3514# define SA_RESTART 0 4254# define SA_RESTART 0
3515#endif 4255#endif
3516 4256
3517#if EV_SIGNAL_ENABLE 4257#if EV_SIGNAL_ENABLE
3518 4258
3519void noinline 4259ecb_noinline
4260void
3520ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4261ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3521{ 4262{
3522 if (expect_false (ev_is_active (w))) 4263 if (ecb_expect_false (ev_is_active (w)))
3523 return; 4264 return;
3524 4265
3525 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4266 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3526 4267
3527#if EV_MULTIPLICITY 4268#if EV_MULTIPLICITY
… …
3596 } 4337 }
3597 4338
3598 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
3599} 4340}
3600 4341
3601void noinline 4342ecb_noinline
4343void
3602ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4344ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3603{ 4345{
3604 clear_pending (EV_A_ (W)w); 4346 clear_pending (EV_A_ (W)w);
3605 if (expect_false (!ev_is_active (w))) 4347 if (ecb_expect_false (!ev_is_active (w)))
3606 return; 4348 return;
3607 4349
3608 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
3609 4351
3610 wlist_del (&signals [w->signum - 1].head, (WL)w); 4352 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3638#endif 4380#endif
3639 4381
3640#if EV_CHILD_ENABLE 4382#if EV_CHILD_ENABLE
3641 4383
3642void 4384void
3643ev_child_start (EV_P_ ev_child *w) EV_THROW 4385ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3644{ 4386{
3645#if EV_MULTIPLICITY 4387#if EV_MULTIPLICITY
3646 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4388 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3647#endif 4389#endif
3648 if (expect_false (ev_is_active (w))) 4390 if (ecb_expect_false (ev_is_active (w)))
3649 return; 4391 return;
3650 4392
3651 EV_FREQUENT_CHECK; 4393 EV_FREQUENT_CHECK;
3652 4394
3653 ev_start (EV_A_ (W)w, 1); 4395 ev_start (EV_A_ (W)w, 1);
… …
3655 4397
3656 EV_FREQUENT_CHECK; 4398 EV_FREQUENT_CHECK;
3657} 4399}
3658 4400
3659void 4401void
3660ev_child_stop (EV_P_ ev_child *w) EV_THROW 4402ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3661{ 4403{
3662 clear_pending (EV_A_ (W)w); 4404 clear_pending (EV_A_ (W)w);
3663 if (expect_false (!ev_is_active (w))) 4405 if (ecb_expect_false (!ev_is_active (w)))
3664 return; 4406 return;
3665 4407
3666 EV_FREQUENT_CHECK; 4408 EV_FREQUENT_CHECK;
3667 4409
3668 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4410 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3682 4424
3683#define DEF_STAT_INTERVAL 5.0074891 4425#define DEF_STAT_INTERVAL 5.0074891
3684#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4426#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3685#define MIN_STAT_INTERVAL 0.1074891 4427#define MIN_STAT_INTERVAL 0.1074891
3686 4428
3687static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4429ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3688 4430
3689#if EV_USE_INOTIFY 4431#if EV_USE_INOTIFY
3690 4432
3691/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4433/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3692# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4434# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3693 4435
3694static void noinline 4436ecb_noinline
4437static void
3695infy_add (EV_P_ ev_stat *w) 4438infy_add (EV_P_ ev_stat *w)
3696{ 4439{
3697 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 4440 w->wd = inotify_add_watch (fs_fd, w->path,
4441 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4442 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4443 | IN_DONT_FOLLOW | IN_MASK_ADD);
3698 4444
3699 if (w->wd >= 0) 4445 if (w->wd >= 0)
3700 { 4446 {
3701 struct statfs sfs; 4447 struct statfs sfs;
3702 4448
… …
3706 4452
3707 if (!fs_2625) 4453 if (!fs_2625)
3708 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4454 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3709 else if (!statfs (w->path, &sfs) 4455 else if (!statfs (w->path, &sfs)
3710 && (sfs.f_type == 0x1373 /* devfs */ 4456 && (sfs.f_type == 0x1373 /* devfs */
4457 || sfs.f_type == 0x4006 /* fat */
4458 || sfs.f_type == 0x4d44 /* msdos */
3711 || sfs.f_type == 0xEF53 /* ext2/3 */ 4459 || sfs.f_type == 0xEF53 /* ext2/3 */
4460 || sfs.f_type == 0x72b6 /* jffs2 */
4461 || sfs.f_type == 0x858458f6 /* ramfs */
4462 || sfs.f_type == 0x5346544e /* ntfs */
3712 || sfs.f_type == 0x3153464a /* jfs */ 4463 || sfs.f_type == 0x3153464a /* jfs */
4464 || sfs.f_type == 0x9123683e /* btrfs */
3713 || sfs.f_type == 0x52654973 /* reiser3 */ 4465 || sfs.f_type == 0x52654973 /* reiser3 */
3714 || sfs.f_type == 0x01021994 /* tempfs */ 4466 || sfs.f_type == 0x01021994 /* tmpfs */
3715 || sfs.f_type == 0x58465342 /* xfs */)) 4467 || sfs.f_type == 0x58465342 /* xfs */))
3716 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4468 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3717 else 4469 else
3718 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4470 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3719 } 4471 }
… …
3754 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4506 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3755 ev_timer_again (EV_A_ &w->timer); 4507 ev_timer_again (EV_A_ &w->timer);
3756 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4508 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3757} 4509}
3758 4510
3759static void noinline 4511ecb_noinline
4512static void
3760infy_del (EV_P_ ev_stat *w) 4513infy_del (EV_P_ ev_stat *w)
3761{ 4514{
3762 int slot; 4515 int slot;
3763 int wd = w->wd; 4516 int wd = w->wd;
3764 4517
… …
3771 4524
3772 /* remove this watcher, if others are watching it, they will rearm */ 4525 /* remove this watcher, if others are watching it, they will rearm */
3773 inotify_rm_watch (fs_fd, wd); 4526 inotify_rm_watch (fs_fd, wd);
3774} 4527}
3775 4528
3776static void noinline 4529ecb_noinline
4530static void
3777infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4531infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3778{ 4532{
3779 if (slot < 0) 4533 if (slot < 0)
3780 /* overflow, need to check for all hash slots */ 4534 /* overflow, need to check for all hash slots */
3781 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4535 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3817 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4571 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3818 ofs += sizeof (struct inotify_event) + ev->len; 4572 ofs += sizeof (struct inotify_event) + ev->len;
3819 } 4573 }
3820} 4574}
3821 4575
3822inline_size void ecb_cold 4576inline_size ecb_cold
4577void
3823ev_check_2625 (EV_P) 4578ev_check_2625 (EV_P)
3824{ 4579{
3825 /* kernels < 2.6.25 are borked 4580 /* kernels < 2.6.25 are borked
3826 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4581 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3827 */ 4582 */
… …
3917#else 4672#else
3918# define EV_LSTAT(p,b) lstat (p, b) 4673# define EV_LSTAT(p,b) lstat (p, b)
3919#endif 4674#endif
3920 4675
3921void 4676void
3922ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4677ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3923{ 4678{
3924 if (lstat (w->path, &w->attr) < 0) 4679 if (lstat (w->path, &w->attr) < 0)
3925 w->attr.st_nlink = 0; 4680 w->attr.st_nlink = 0;
3926 else if (!w->attr.st_nlink) 4681 else if (!w->attr.st_nlink)
3927 w->attr.st_nlink = 1; 4682 w->attr.st_nlink = 1;
3928} 4683}
3929 4684
3930static void noinline 4685ecb_noinline
4686static void
3931stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4687stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3932{ 4688{
3933 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4689 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3934 4690
3935 ev_statdata prev = w->attr; 4691 ev_statdata prev = w->attr;
… …
3966 ev_feed_event (EV_A_ w, EV_STAT); 4722 ev_feed_event (EV_A_ w, EV_STAT);
3967 } 4723 }
3968} 4724}
3969 4725
3970void 4726void
3971ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4727ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3972{ 4728{
3973 if (expect_false (ev_is_active (w))) 4729 if (ecb_expect_false (ev_is_active (w)))
3974 return; 4730 return;
3975 4731
3976 ev_stat_stat (EV_A_ w); 4732 ev_stat_stat (EV_A_ w);
3977 4733
3978 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4734 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
3997 4753
3998 EV_FREQUENT_CHECK; 4754 EV_FREQUENT_CHECK;
3999} 4755}
4000 4756
4001void 4757void
4002ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4758ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4003{ 4759{
4004 clear_pending (EV_A_ (W)w); 4760 clear_pending (EV_A_ (W)w);
4005 if (expect_false (!ev_is_active (w))) 4761 if (ecb_expect_false (!ev_is_active (w)))
4006 return; 4762 return;
4007 4763
4008 EV_FREQUENT_CHECK; 4764 EV_FREQUENT_CHECK;
4009 4765
4010#if EV_USE_INOTIFY 4766#if EV_USE_INOTIFY
… …
4023} 4779}
4024#endif 4780#endif
4025 4781
4026#if EV_IDLE_ENABLE 4782#if EV_IDLE_ENABLE
4027void 4783void
4028ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4784ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4029{ 4785{
4030 if (expect_false (ev_is_active (w))) 4786 if (ecb_expect_false (ev_is_active (w)))
4031 return; 4787 return;
4032 4788
4033 pri_adjust (EV_A_ (W)w); 4789 pri_adjust (EV_A_ (W)w);
4034 4790
4035 EV_FREQUENT_CHECK; 4791 EV_FREQUENT_CHECK;
… …
4038 int active = ++idlecnt [ABSPRI (w)]; 4794 int active = ++idlecnt [ABSPRI (w)];
4039 4795
4040 ++idleall; 4796 ++idleall;
4041 ev_start (EV_A_ (W)w, active); 4797 ev_start (EV_A_ (W)w, active);
4042 4798
4043 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4799 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4044 idles [ABSPRI (w)][active - 1] = w; 4800 idles [ABSPRI (w)][active - 1] = w;
4045 } 4801 }
4046 4802
4047 EV_FREQUENT_CHECK; 4803 EV_FREQUENT_CHECK;
4048} 4804}
4049 4805
4050void 4806void
4051ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4807ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4052{ 4808{
4053 clear_pending (EV_A_ (W)w); 4809 clear_pending (EV_A_ (W)w);
4054 if (expect_false (!ev_is_active (w))) 4810 if (ecb_expect_false (!ev_is_active (w)))
4055 return; 4811 return;
4056 4812
4057 EV_FREQUENT_CHECK; 4813 EV_FREQUENT_CHECK;
4058 4814
4059 { 4815 {
… …
4070} 4826}
4071#endif 4827#endif
4072 4828
4073#if EV_PREPARE_ENABLE 4829#if EV_PREPARE_ENABLE
4074void 4830void
4075ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4831ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4076{ 4832{
4077 if (expect_false (ev_is_active (w))) 4833 if (ecb_expect_false (ev_is_active (w)))
4078 return; 4834 return;
4079 4835
4080 EV_FREQUENT_CHECK; 4836 EV_FREQUENT_CHECK;
4081 4837
4082 ev_start (EV_A_ (W)w, ++preparecnt); 4838 ev_start (EV_A_ (W)w, ++preparecnt);
4083 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4839 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4084 prepares [preparecnt - 1] = w; 4840 prepares [preparecnt - 1] = w;
4085 4841
4086 EV_FREQUENT_CHECK; 4842 EV_FREQUENT_CHECK;
4087} 4843}
4088 4844
4089void 4845void
4090ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4846ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4091{ 4847{
4092 clear_pending (EV_A_ (W)w); 4848 clear_pending (EV_A_ (W)w);
4093 if (expect_false (!ev_is_active (w))) 4849 if (ecb_expect_false (!ev_is_active (w)))
4094 return; 4850 return;
4095 4851
4096 EV_FREQUENT_CHECK; 4852 EV_FREQUENT_CHECK;
4097 4853
4098 { 4854 {
… …
4108} 4864}
4109#endif 4865#endif
4110 4866
4111#if EV_CHECK_ENABLE 4867#if EV_CHECK_ENABLE
4112void 4868void
4113ev_check_start (EV_P_ ev_check *w) EV_THROW 4869ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4114{ 4870{
4115 if (expect_false (ev_is_active (w))) 4871 if (ecb_expect_false (ev_is_active (w)))
4116 return; 4872 return;
4117 4873
4118 EV_FREQUENT_CHECK; 4874 EV_FREQUENT_CHECK;
4119 4875
4120 ev_start (EV_A_ (W)w, ++checkcnt); 4876 ev_start (EV_A_ (W)w, ++checkcnt);
4121 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4877 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4122 checks [checkcnt - 1] = w; 4878 checks [checkcnt - 1] = w;
4123 4879
4124 EV_FREQUENT_CHECK; 4880 EV_FREQUENT_CHECK;
4125} 4881}
4126 4882
4127void 4883void
4128ev_check_stop (EV_P_ ev_check *w) EV_THROW 4884ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4129{ 4885{
4130 clear_pending (EV_A_ (W)w); 4886 clear_pending (EV_A_ (W)w);
4131 if (expect_false (!ev_is_active (w))) 4887 if (ecb_expect_false (!ev_is_active (w)))
4132 return; 4888 return;
4133 4889
4134 EV_FREQUENT_CHECK; 4890 EV_FREQUENT_CHECK;
4135 4891
4136 { 4892 {
… …
4145 EV_FREQUENT_CHECK; 4901 EV_FREQUENT_CHECK;
4146} 4902}
4147#endif 4903#endif
4148 4904
4149#if EV_EMBED_ENABLE 4905#if EV_EMBED_ENABLE
4150void noinline 4906ecb_noinline
4907void
4151ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4908ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4152{ 4909{
4153 ev_run (w->other, EVRUN_NOWAIT); 4910 ev_run (w->other, EVRUN_NOWAIT);
4154} 4911}
4155 4912
4156static void 4913static void
… …
4204 ev_idle_stop (EV_A_ idle); 4961 ev_idle_stop (EV_A_ idle);
4205} 4962}
4206#endif 4963#endif
4207 4964
4208void 4965void
4209ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4966ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4210{ 4967{
4211 if (expect_false (ev_is_active (w))) 4968 if (ecb_expect_false (ev_is_active (w)))
4212 return; 4969 return;
4213 4970
4214 { 4971 {
4215 EV_P = w->other; 4972 EV_P = w->other;
4216 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4973 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4235 4992
4236 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4237} 4994}
4238 4995
4239void 4996void
4240ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4997ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4241{ 4998{
4242 clear_pending (EV_A_ (W)w); 4999 clear_pending (EV_A_ (W)w);
4243 if (expect_false (!ev_is_active (w))) 5000 if (ecb_expect_false (!ev_is_active (w)))
4244 return; 5001 return;
4245 5002
4246 EV_FREQUENT_CHECK; 5003 EV_FREQUENT_CHECK;
4247 5004
4248 ev_io_stop (EV_A_ &w->io); 5005 ev_io_stop (EV_A_ &w->io);
… …
4255} 5012}
4256#endif 5013#endif
4257 5014
4258#if EV_FORK_ENABLE 5015#if EV_FORK_ENABLE
4259void 5016void
4260ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5017ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4261{ 5018{
4262 if (expect_false (ev_is_active (w))) 5019 if (ecb_expect_false (ev_is_active (w)))
4263 return; 5020 return;
4264 5021
4265 EV_FREQUENT_CHECK; 5022 EV_FREQUENT_CHECK;
4266 5023
4267 ev_start (EV_A_ (W)w, ++forkcnt); 5024 ev_start (EV_A_ (W)w, ++forkcnt);
4268 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5025 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4269 forks [forkcnt - 1] = w; 5026 forks [forkcnt - 1] = w;
4270 5027
4271 EV_FREQUENT_CHECK; 5028 EV_FREQUENT_CHECK;
4272} 5029}
4273 5030
4274void 5031void
4275ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5032ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4276{ 5033{
4277 clear_pending (EV_A_ (W)w); 5034 clear_pending (EV_A_ (W)w);
4278 if (expect_false (!ev_is_active (w))) 5035 if (ecb_expect_false (!ev_is_active (w)))
4279 return; 5036 return;
4280 5037
4281 EV_FREQUENT_CHECK; 5038 EV_FREQUENT_CHECK;
4282 5039
4283 { 5040 {
… …
4293} 5050}
4294#endif 5051#endif
4295 5052
4296#if EV_CLEANUP_ENABLE 5053#if EV_CLEANUP_ENABLE
4297void 5054void
4298ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5055ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4299{ 5056{
4300 if (expect_false (ev_is_active (w))) 5057 if (ecb_expect_false (ev_is_active (w)))
4301 return; 5058 return;
4302 5059
4303 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4304 5061
4305 ev_start (EV_A_ (W)w, ++cleanupcnt); 5062 ev_start (EV_A_ (W)w, ++cleanupcnt);
4306 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5063 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4307 cleanups [cleanupcnt - 1] = w; 5064 cleanups [cleanupcnt - 1] = w;
4308 5065
4309 /* cleanup watchers should never keep a refcount on the loop */ 5066 /* cleanup watchers should never keep a refcount on the loop */
4310 ev_unref (EV_A); 5067 ev_unref (EV_A);
4311 EV_FREQUENT_CHECK; 5068 EV_FREQUENT_CHECK;
4312} 5069}
4313 5070
4314void 5071void
4315ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5072ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4316{ 5073{
4317 clear_pending (EV_A_ (W)w); 5074 clear_pending (EV_A_ (W)w);
4318 if (expect_false (!ev_is_active (w))) 5075 if (ecb_expect_false (!ev_is_active (w)))
4319 return; 5076 return;
4320 5077
4321 EV_FREQUENT_CHECK; 5078 EV_FREQUENT_CHECK;
4322 ev_ref (EV_A); 5079 ev_ref (EV_A);
4323 5080
… …
4334} 5091}
4335#endif 5092#endif
4336 5093
4337#if EV_ASYNC_ENABLE 5094#if EV_ASYNC_ENABLE
4338void 5095void
4339ev_async_start (EV_P_ ev_async *w) EV_THROW 5096ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4340{ 5097{
4341 if (expect_false (ev_is_active (w))) 5098 if (ecb_expect_false (ev_is_active (w)))
4342 return; 5099 return;
4343 5100
4344 w->sent = 0; 5101 w->sent = 0;
4345 5102
4346 evpipe_init (EV_A); 5103 evpipe_init (EV_A);
4347 5104
4348 EV_FREQUENT_CHECK; 5105 EV_FREQUENT_CHECK;
4349 5106
4350 ev_start (EV_A_ (W)w, ++asynccnt); 5107 ev_start (EV_A_ (W)w, ++asynccnt);
4351 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5108 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4352 asyncs [asynccnt - 1] = w; 5109 asyncs [asynccnt - 1] = w;
4353 5110
4354 EV_FREQUENT_CHECK; 5111 EV_FREQUENT_CHECK;
4355} 5112}
4356 5113
4357void 5114void
4358ev_async_stop (EV_P_ ev_async *w) EV_THROW 5115ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4359{ 5116{
4360 clear_pending (EV_A_ (W)w); 5117 clear_pending (EV_A_ (W)w);
4361 if (expect_false (!ev_is_active (w))) 5118 if (ecb_expect_false (!ev_is_active (w)))
4362 return; 5119 return;
4363 5120
4364 EV_FREQUENT_CHECK; 5121 EV_FREQUENT_CHECK;
4365 5122
4366 { 5123 {
… …
4374 5131
4375 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4376} 5133}
4377 5134
4378void 5135void
4379ev_async_send (EV_P_ ev_async *w) EV_THROW 5136ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4380{ 5137{
4381 w->sent = 1; 5138 w->sent = 1;
4382 evpipe_write (EV_A_ &async_pending); 5139 evpipe_write (EV_A_ &async_pending);
4383} 5140}
4384#endif 5141#endif
… …
4421 5178
4422 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5179 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4423} 5180}
4424 5181
4425void 5182void
4426ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5183ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4427{ 5184{
4428 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5185 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4429
4430 if (expect_false (!once))
4431 {
4432 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4433 return;
4434 }
4435 5186
4436 once->cb = cb; 5187 once->cb = cb;
4437 once->arg = arg; 5188 once->arg = arg;
4438 5189
4439 ev_init (&once->io, once_cb_io); 5190 ev_init (&once->io, once_cb_io);
… …
4452} 5203}
4453 5204
4454/*****************************************************************************/ 5205/*****************************************************************************/
4455 5206
4456#if EV_WALK_ENABLE 5207#if EV_WALK_ENABLE
4457void ecb_cold 5208ecb_cold
5209void
4458ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5210ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4459{ 5211{
4460 int i, j; 5212 int i, j;
4461 ev_watcher_list *wl, *wn; 5213 ev_watcher_list *wl, *wn;
4462 5214
4463 if (types & (EV_IO | EV_EMBED)) 5215 if (types & (EV_IO | EV_EMBED))

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