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Comparing libev/ev.c (file contents):
Revision 1.448 by root, Tue Jul 24 16:28:08 2012 UTC vs.
Revision 1.509 by root, Sat Aug 17 05:30:16 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#ifndef EV_TS_CONST
550# define EV_TS_CONST(nv) nv
551# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
552# define EV_TS_FROM_USEC(us) us * 1e-6
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 553# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 554# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
555# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
556# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
557#endif
474 558
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 559/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 560/* ECB.H BEGIN */
477/* 561/*
478 * libecb - http://software.schmorp.de/pkg/libecb 562 * libecb - http://software.schmorp.de/pkg/libecb
479 * 563 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 564 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 565 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 566 * All rights reserved.
483 * 567 *
484 * Redistribution and use in source and binary forms, with or without modifica- 568 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 569 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 583 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 584 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 585 * 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 586 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 587 * OF THE POSSIBILITY OF SUCH DAMAGE.
588 *
589 * Alternatively, the contents of this file may be used under the terms of
590 * the GNU General Public License ("GPL") version 2 or any later version,
591 * in which case the provisions of the GPL are applicable instead of
592 * the above. If you wish to allow the use of your version of this file
593 * only under the terms of the GPL and not to allow others to use your
594 * version of this file under the BSD license, indicate your decision
595 * by deleting the provisions above and replace them with the notice
596 * and other provisions required by the GPL. If you do not delete the
597 * provisions above, a recipient may use your version of this file under
598 * either the BSD or the GPL.
504 */ 599 */
505 600
506#ifndef ECB_H 601#ifndef ECB_H
507#define ECB_H 602#define ECB_H
508 603
509/* 16 bits major, 16 bits minor */ 604/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001 605#define ECB_VERSION 0x00010006
511 606
512#ifdef _WIN32 607#ifdef _WIN32
513 typedef signed char int8_t; 608 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 609 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 610 typedef signed short int16_t;
… …
530 #else 625 #else
531 #define ECB_PTRSIZE 4 626 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t; 627 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 628 typedef int32_t intptr_t;
534 #endif 629 #endif
535 typedef intptr_t ptrdiff_t;
536#else 630#else
537 #include <inttypes.h> 631 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU 632 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
539 #define ECB_PTRSIZE 8 633 #define ECB_PTRSIZE 8
540 #else 634 #else
541 #define ECB_PTRSIZE 4 635 #define ECB_PTRSIZE 4
636 #endif
637#endif
638
639#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
640#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
641
642/* work around x32 idiocy by defining proper macros */
643#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
644 #if _ILP32
645 #define ECB_AMD64_X32 1
646 #else
647 #define ECB_AMD64 1
542 #endif 648 #endif
543#endif 649#endif
544 650
545/* many compilers define _GNUC_ to some versions but then only implement 651/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions, 652 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers. 653 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so. 654 * or so.
549 * we try to detect these and simply assume they are not gcc - if they have 655 * we try to detect these and simply assume they are not gcc - if they have
550 * an issue with that they should have done it right in the first place. 656 * an issue with that they should have done it right in the first place.
551 */ 657 */
552#ifndef ECB_GCC_VERSION
553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 658#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
554 #define ECB_GCC_VERSION(major,minor) 0 659 #define ECB_GCC_VERSION(major,minor) 0
555 #else 660#else
556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 661 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
557 #endif 662#endif
558#endif
559 663
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 664#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
561#define ECB_C99 (__STDC_VERSION__ >= 199901L) 665
562#define ECB_C11 (__STDC_VERSION__ >= 201112L) 666#if __clang__ && defined __has_builtin
667 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
668#else
669 #define ECB_CLANG_BUILTIN(x) 0
670#endif
671
672#if __clang__ && defined __has_extension
673 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
674#else
675 #define ECB_CLANG_EXTENSION(x) 0
676#endif
677
563#define ECB_CPP (__cplusplus+0) 678#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP11 (__cplusplus >= 201103L) 679#define ECB_CPP11 (__cplusplus >= 201103L)
680#define ECB_CPP14 (__cplusplus >= 201402L)
681#define ECB_CPP17 (__cplusplus >= 201703L)
682
683#if ECB_CPP
684 #define ECB_C 0
685 #define ECB_STDC_VERSION 0
686#else
687 #define ECB_C 1
688 #define ECB_STDC_VERSION __STDC_VERSION__
689#endif
690
691#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
692#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
693#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
694
695#if ECB_CPP
696 #define ECB_EXTERN_C extern "C"
697 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
698 #define ECB_EXTERN_C_END }
699#else
700 #define ECB_EXTERN_C extern
701 #define ECB_EXTERN_C_BEG
702 #define ECB_EXTERN_C_END
703#endif
565 704
566/*****************************************************************************/ 705/*****************************************************************************/
567 706
568/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 707/* 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 */ 708/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
… …
574 713
575#if ECB_NO_SMP 714#if ECB_NO_SMP
576 #define ECB_MEMORY_FENCE do { } while (0) 715 #define ECB_MEMORY_FENCE do { } while (0)
577#endif 716#endif
578 717
718/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
719#if __xlC__ && ECB_CPP
720 #include <builtins.h>
721#endif
722
723#if 1400 <= _MSC_VER
724 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
725#endif
726
579#ifndef ECB_MEMORY_FENCE 727#ifndef ECB_MEMORY_FENCE
580 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 728 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
729 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
581 #if __i386 || __i386__ 730 #if __i386 || __i386__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 731 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 732 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 733 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 734 #elif ECB_GCC_AMD64
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 735 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
587 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 736 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 737 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 738 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
590 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 739 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
740 #elif defined __ARM_ARCH_2__ \
741 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
742 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
743 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
744 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
745 || defined __ARM_ARCH_5TEJ__
746 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 747 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
592 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 748 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
749 || defined __ARM_ARCH_6T2__
593 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 750 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 751 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 752 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 753 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
597 #elif __sparc || __sparc__ 754 #elif __aarch64__
755 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
756 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
598 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 757 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 758 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 759 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
601 #elif defined __s390__ || defined __s390x__ 760 #elif defined __s390__ || defined __s390x__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 761 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
603 #elif defined __mips__ 762 #elif defined __mips__
763 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
764 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
604 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 765 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
605 #elif defined __alpha__ 766 #elif defined __alpha__
606 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 767 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607 #elif defined __hppa__ 768 #elif defined __hppa__
608 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 769 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 770 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif defined __ia64__ 771 #elif defined __ia64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 772 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
773 #elif defined __m68k__
774 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
775 #elif defined __m88k__
776 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
777 #elif defined __sh__
778 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
612 #endif 779 #endif
613 #endif 780 #endif
614#endif 781#endif
615 782
616#ifndef ECB_MEMORY_FENCE 783#ifndef ECB_MEMORY_FENCE
617 #if ECB_GCC_VERSION(4,7) 784 #if ECB_GCC_VERSION(4,7)
618 /* see comment below (stdatomic.h) about the C11 memory model. */ 785 /* see comment below (stdatomic.h) about the C11 memory model. */
619 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 786 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620 #elif defined __clang && __has_feature (cxx_atomic) 787 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
788 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
789 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
790
791 #elif ECB_CLANG_EXTENSION(c_atomic)
621 /* see comment below (stdatomic.h) about the C11 memory model. */ 792 /* see comment below (stdatomic.h) about the C11 memory model. */
622 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 793 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
794 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
795 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
796 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
797
623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 798 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
624 #define ECB_MEMORY_FENCE __sync_synchronize () 799 #define ECB_MEMORY_FENCE __sync_synchronize ()
800 #elif _MSC_VER >= 1500 /* VC++ 2008 */
801 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
802 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
803 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
804 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
805 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
625 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 806 #elif _MSC_VER >= 1400 /* VC++ 2005 */
626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 807 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
627 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 808 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
628 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 809 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 810 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
630 #elif defined _WIN32 811 #elif defined _WIN32
631 #include <WinNT.h> 812 #include <WinNT.h>
632 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 813 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
633 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 814 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #include <mbarrier.h> 815 #include <mbarrier.h>
635 #define ECB_MEMORY_FENCE __machine_rw_barrier () 816 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
636 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 817 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
637 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 818 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
819 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
638 #elif __xlC__ 820 #elif __xlC__
639 #define ECB_MEMORY_FENCE __sync () 821 #define ECB_MEMORY_FENCE __sync ()
640 #endif 822 #endif
641#endif 823#endif
642 824
643#ifndef ECB_MEMORY_FENCE 825#ifndef ECB_MEMORY_FENCE
644 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 826 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
645 /* we assume that these memory fences work on all variables/all memory accesses, */ 827 /* we assume that these memory fences work on all variables/all memory accesses, */
646 /* not just C11 atomics and atomic accesses */ 828 /* not just C11 atomics and atomic accesses */
647 #include <stdatomic.h> 829 #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) 830 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
831 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
832 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
655 #endif 833 #endif
656#endif 834#endif
657 835
658#ifndef ECB_MEMORY_FENCE 836#ifndef ECB_MEMORY_FENCE
659 #if !ECB_AVOID_PTHREADS 837 #if !ECB_AVOID_PTHREADS
… …
679 857
680#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 858#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 859 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
682#endif 860#endif
683 861
862#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
863 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
864#endif
865
684/*****************************************************************************/ 866/*****************************************************************************/
685 867
686#if __cplusplus 868#if ECB_CPP
687 #define ecb_inline static inline 869 #define ecb_inline static inline
688#elif ECB_GCC_VERSION(2,5) 870#elif ECB_GCC_VERSION(2,5)
689 #define ecb_inline static __inline__ 871 #define ecb_inline static __inline__
690#elif ECB_C99 872#elif ECB_C99
691 #define ecb_inline static inline 873 #define ecb_inline static inline
… …
705 887
706#define ECB_CONCAT_(a, b) a ## b 888#define ECB_CONCAT_(a, b) a ## b
707#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 889#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
708#define ECB_STRINGIFY_(a) # a 890#define ECB_STRINGIFY_(a) # a
709#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 891#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
892#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
710 893
711#define ecb_function_ ecb_inline 894#define ecb_function_ ecb_inline
712 895
713#if ECB_GCC_VERSION(3,1) 896#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
714 #define ecb_attribute(attrlist) __attribute__(attrlist) 897 #define ecb_attribute(attrlist) __attribute__ (attrlist)
898#else
899 #define ecb_attribute(attrlist)
900#endif
901
902#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
715 #define ecb_is_constant(expr) __builtin_constant_p (expr) 903 #define ecb_is_constant(expr) __builtin_constant_p (expr)
904#else
905 /* possible C11 impl for integral types
906 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
907 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
908
909 #define ecb_is_constant(expr) 0
910#endif
911
912#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
716 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 913 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
914#else
915 #define ecb_expect(expr,value) (expr)
916#endif
917
918#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
717 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 919 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
718#else 920#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) 921 #define ecb_prefetch(addr,rw,locality)
723#endif 922#endif
724 923
725/* no emulation for ecb_decltype */ 924/* no emulation for ecb_decltype */
726#if ECB_GCC_VERSION(4,5) 925#if ECB_CPP11
926 // older implementations might have problems with decltype(x)::type, work around it
927 template<class T> struct ecb_decltype_t { typedef T type; };
727 #define ecb_decltype(x) __decltype(x) 928 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
728#elif ECB_GCC_VERSION(3,0) 929#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
729 #define ecb_decltype(x) __typeof(x) 930 #define ecb_decltype(x) __typeof__ (x)
730#endif 931#endif
731 932
933#if _MSC_VER >= 1300
934 #define ecb_deprecated __declspec (deprecated)
935#else
936 #define ecb_deprecated ecb_attribute ((__deprecated__))
937#endif
938
939#if _MSC_VER >= 1500
940 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
941#elif ECB_GCC_VERSION(4,5)
942 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
943#else
944 #define ecb_deprecated_message(msg) ecb_deprecated
945#endif
946
947#if _MSC_VER >= 1400
948 #define ecb_noinline __declspec (noinline)
949#else
732#define ecb_noinline ecb_attribute ((__noinline__)) 950 #define ecb_noinline ecb_attribute ((__noinline__))
951#endif
952
733#define ecb_unused ecb_attribute ((__unused__)) 953#define ecb_unused ecb_attribute ((__unused__))
734#define ecb_const ecb_attribute ((__const__)) 954#define ecb_const ecb_attribute ((__const__))
735#define ecb_pure ecb_attribute ((__pure__)) 955#define ecb_pure ecb_attribute ((__pure__))
736 956
737#if ECB_C11 957#if ECB_C11 || __IBMC_NORETURN
958 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
738 #define ecb_noreturn _Noreturn 959 #define ecb_noreturn _Noreturn
960#elif ECB_CPP11
961 #define ecb_noreturn [[noreturn]]
962#elif _MSC_VER >= 1200
963 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
964 #define ecb_noreturn __declspec (noreturn)
739#else 965#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__)) 966 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif 967#endif
742 968
743#if ECB_GCC_VERSION(4,3) 969#if ECB_GCC_VERSION(4,3)
… …
758/* for compatibility to the rest of the world */ 984/* for compatibility to the rest of the world */
759#define ecb_likely(expr) ecb_expect_true (expr) 985#define ecb_likely(expr) ecb_expect_true (expr)
760#define ecb_unlikely(expr) ecb_expect_false (expr) 986#define ecb_unlikely(expr) ecb_expect_false (expr)
761 987
762/* count trailing zero bits and count # of one bits */ 988/* count trailing zero bits and count # of one bits */
763#if ECB_GCC_VERSION(3,4) 989#if ECB_GCC_VERSION(3,4) \
990 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
991 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
992 && ECB_CLANG_BUILTIN(__builtin_popcount))
764 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 993 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
765 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 994 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
766 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 995 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
767 #define ecb_ctz32(x) __builtin_ctz (x) 996 #define ecb_ctz32(x) __builtin_ctz (x)
768 #define ecb_ctz64(x) __builtin_ctzll (x) 997 #define ecb_ctz64(x) __builtin_ctzll (x)
769 #define ecb_popcount32(x) __builtin_popcount (x) 998 #define ecb_popcount32(x) __builtin_popcount (x)
770 /* no popcountll */ 999 /* no popcountll */
771#else 1000#else
772 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1001 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
773 ecb_function_ int 1002 ecb_function_ ecb_const int
774 ecb_ctz32 (uint32_t x) 1003 ecb_ctz32 (uint32_t x)
775 { 1004 {
1005#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1006 unsigned long r;
1007 _BitScanForward (&r, x);
1008 return (int)r;
1009#else
776 int r = 0; 1010 int r = 0;
777 1011
778 x &= ~x + 1; /* this isolates the lowest bit */ 1012 x &= ~x + 1; /* this isolates the lowest bit */
779 1013
780#if ECB_branchless_on_i386 1014#if ECB_branchless_on_i386
… …
790 if (x & 0xff00ff00) r += 8; 1024 if (x & 0xff00ff00) r += 8;
791 if (x & 0xffff0000) r += 16; 1025 if (x & 0xffff0000) r += 16;
792#endif 1026#endif
793 1027
794 return r; 1028 return r;
1029#endif
795 } 1030 }
796 1031
797 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1032 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
798 ecb_function_ int 1033 ecb_function_ ecb_const int
799 ecb_ctz64 (uint64_t x) 1034 ecb_ctz64 (uint64_t x)
800 { 1035 {
1036#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1037 unsigned long r;
1038 _BitScanForward64 (&r, x);
1039 return (int)r;
1040#else
801 int shift = x & 0xffffffffU ? 0 : 32; 1041 int shift = x & 0xffffffff ? 0 : 32;
802 return ecb_ctz32 (x >> shift) + shift; 1042 return ecb_ctz32 (x >> shift) + shift;
1043#endif
803 } 1044 }
804 1045
805 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1046 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
806 ecb_function_ int 1047 ecb_function_ ecb_const int
807 ecb_popcount32 (uint32_t x) 1048 ecb_popcount32 (uint32_t x)
808 { 1049 {
809 x -= (x >> 1) & 0x55555555; 1050 x -= (x >> 1) & 0x55555555;
810 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1051 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
811 x = ((x >> 4) + x) & 0x0f0f0f0f; 1052 x = ((x >> 4) + x) & 0x0f0f0f0f;
812 x *= 0x01010101; 1053 x *= 0x01010101;
813 1054
814 return x >> 24; 1055 return x >> 24;
815 } 1056 }
816 1057
817 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1058 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
818 ecb_function_ int ecb_ld32 (uint32_t x) 1059 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
819 { 1060 {
1061#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1062 unsigned long r;
1063 _BitScanReverse (&r, x);
1064 return (int)r;
1065#else
820 int r = 0; 1066 int r = 0;
821 1067
822 if (x >> 16) { x >>= 16; r += 16; } 1068 if (x >> 16) { x >>= 16; r += 16; }
823 if (x >> 8) { x >>= 8; r += 8; } 1069 if (x >> 8) { x >>= 8; r += 8; }
824 if (x >> 4) { x >>= 4; r += 4; } 1070 if (x >> 4) { x >>= 4; r += 4; }
825 if (x >> 2) { x >>= 2; r += 2; } 1071 if (x >> 2) { x >>= 2; r += 2; }
826 if (x >> 1) { r += 1; } 1072 if (x >> 1) { r += 1; }
827 1073
828 return r; 1074 return r;
1075#endif
829 } 1076 }
830 1077
831 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1078 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
832 ecb_function_ int ecb_ld64 (uint64_t x) 1079 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
833 { 1080 {
1081#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1082 unsigned long r;
1083 _BitScanReverse64 (&r, x);
1084 return (int)r;
1085#else
834 int r = 0; 1086 int r = 0;
835 1087
836 if (x >> 32) { x >>= 32; r += 32; } 1088 if (x >> 32) { x >>= 32; r += 32; }
837 1089
838 return r + ecb_ld32 (x); 1090 return r + ecb_ld32 (x);
1091#endif
839 } 1092 }
840#endif 1093#endif
841 1094
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1095ecb_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)); } 1096ecb_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; 1097ecb_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)); } 1098ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846 1099
847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1100ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1101ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
849{ 1102{
850 return ( (x * 0x0802U & 0x22110U) 1103 return ( (x * 0x0802U & 0x22110U)
851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1104 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852} 1105}
853 1106
854ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1107ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
855ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1108ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
856{ 1109{
857 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1110 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
858 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1111 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
859 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1112 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
860 x = ( x >> 8 ) | ( x << 8); 1113 x = ( x >> 8 ) | ( x << 8);
861 1114
862 return x; 1115 return x;
863} 1116}
864 1117
865ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1118ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
866ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1119ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
867{ 1120{
868 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1121 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
869 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1122 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
870 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1123 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
871 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1124 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
874 return x; 1127 return x;
875} 1128}
876 1129
877/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1130/* popcount64 is only available on 64 bit cpus as gcc builtin */
878/* so for this version we are lazy */ 1131/* so for this version we are lazy */
879ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1132ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
880ecb_function_ int 1133ecb_function_ ecb_const int
881ecb_popcount64 (uint64_t x) 1134ecb_popcount64 (uint64_t x)
882{ 1135{
883 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1136 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
884} 1137}
885 1138
886ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1139ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
887ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1140ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
888ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1141ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
889ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1142ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
890ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1143ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
891ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1144ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
892ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1145ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
893ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1146ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
894 1147
895ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1148ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
896ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1149ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
897ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1150ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
898ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1151ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
899ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1152ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
900ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1153ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
901ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1154ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
902ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1155ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
903 1156
904#if ECB_GCC_VERSION(4,3) 1157#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1158 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1159 #define ecb_bswap16(x) __builtin_bswap16 (x)
1160 #else
905 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1161 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1162 #endif
906 #define ecb_bswap32(x) __builtin_bswap32 (x) 1163 #define ecb_bswap32(x) __builtin_bswap32 (x)
907 #define ecb_bswap64(x) __builtin_bswap64 (x) 1164 #define ecb_bswap64(x) __builtin_bswap64 (x)
1165#elif _MSC_VER
1166 #include <stdlib.h>
1167 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1168 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1169 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
908#else 1170#else
909 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1171 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
910 ecb_function_ uint16_t 1172 ecb_function_ ecb_const uint16_t
911 ecb_bswap16 (uint16_t x) 1173 ecb_bswap16 (uint16_t x)
912 { 1174 {
913 return ecb_rotl16 (x, 8); 1175 return ecb_rotl16 (x, 8);
914 } 1176 }
915 1177
916 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1178 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
917 ecb_function_ uint32_t 1179 ecb_function_ ecb_const uint32_t
918 ecb_bswap32 (uint32_t x) 1180 ecb_bswap32 (uint32_t x)
919 { 1181 {
920 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1182 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
921 } 1183 }
922 1184
923 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1185 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
924 ecb_function_ uint64_t 1186 ecb_function_ ecb_const uint64_t
925 ecb_bswap64 (uint64_t x) 1187 ecb_bswap64 (uint64_t x)
926 { 1188 {
927 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1189 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
928 } 1190 }
929#endif 1191#endif
930 1192
931#if ECB_GCC_VERSION(4,5) 1193#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
932 #define ecb_unreachable() __builtin_unreachable () 1194 #define ecb_unreachable() __builtin_unreachable ()
933#else 1195#else
934 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1196 /* this seems to work fine, but gcc always emits a warning for it :/ */
935 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1197 ecb_inline ecb_noreturn void ecb_unreachable (void);
936 ecb_inline void ecb_unreachable (void) { } 1198 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
937#endif 1199#endif
938 1200
939/* try to tell the compiler that some condition is definitely true */ 1201/* try to tell the compiler that some condition is definitely true */
940#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1202#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
941 1203
942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1204ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
943ecb_inline unsigned char 1205ecb_inline ecb_const uint32_t
944ecb_byteorder_helper (void) 1206ecb_byteorder_helper (void)
945{ 1207{
946 const uint32_t u = 0x11223344; 1208 /* the union code still generates code under pressure in gcc, */
947 return *(unsigned char *)&u; 1209 /* but less than using pointers, and always seems to */
1210 /* successfully return a constant. */
1211 /* the reason why we have this horrible preprocessor mess */
1212 /* is to avoid it in all cases, at least on common architectures */
1213 /* or when using a recent enough gcc version (>= 4.6) */
1214#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1215 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1216 #define ECB_LITTLE_ENDIAN 1
1217 return 0x44332211;
1218#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1219 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1220 #define ECB_BIG_ENDIAN 1
1221 return 0x11223344;
1222#else
1223 union
1224 {
1225 uint8_t c[4];
1226 uint32_t u;
1227 } u = { 0x11, 0x22, 0x33, 0x44 };
1228 return u.u;
1229#endif
948} 1230}
949 1231
950ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1232ecb_inline ecb_const ecb_bool ecb_big_endian (void);
951ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1233ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
952ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1234ecb_inline ecb_const ecb_bool ecb_little_endian (void);
953ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1235ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
954 1236
955#if ECB_GCC_VERSION(3,0) || ECB_C99 1237#if ECB_GCC_VERSION(3,0) || ECB_C99
956 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1238 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
957#else 1239#else
958 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1240 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
959#endif 1241#endif
960 1242
961#if __cplusplus 1243#if ECB_CPP
962 template<typename T> 1244 template<typename T>
963 static inline T ecb_div_rd (T val, T div) 1245 static inline T ecb_div_rd (T val, T div)
964 { 1246 {
965 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1247 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
966 } 1248 }
… …
983 } 1265 }
984#else 1266#else
985 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1267 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
986#endif 1268#endif
987 1269
1270ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1271ecb_function_ ecb_const uint32_t
1272ecb_binary16_to_binary32 (uint32_t x)
1273{
1274 unsigned int s = (x & 0x8000) << (31 - 15);
1275 int e = (x >> 10) & 0x001f;
1276 unsigned int m = x & 0x03ff;
1277
1278 if (ecb_expect_false (e == 31))
1279 /* infinity or NaN */
1280 e = 255 - (127 - 15);
1281 else if (ecb_expect_false (!e))
1282 {
1283 if (ecb_expect_true (!m))
1284 /* zero, handled by code below by forcing e to 0 */
1285 e = 0 - (127 - 15);
1286 else
1287 {
1288 /* subnormal, renormalise */
1289 unsigned int s = 10 - ecb_ld32 (m);
1290
1291 m = (m << s) & 0x3ff; /* mask implicit bit */
1292 e -= s - 1;
1293 }
1294 }
1295
1296 /* e and m now are normalised, or zero, (or inf or nan) */
1297 e += 127 - 15;
1298
1299 return s | (e << 23) | (m << (23 - 10));
1300}
1301
1302ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1303ecb_function_ ecb_const uint16_t
1304ecb_binary32_to_binary16 (uint32_t x)
1305{
1306 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1307 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1308 unsigned int m = x & 0x007fffff;
1309
1310 x &= 0x7fffffff;
1311
1312 /* if it's within range of binary16 normals, use fast path */
1313 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1314 {
1315 /* mantissa round-to-even */
1316 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1317
1318 /* handle overflow */
1319 if (ecb_expect_false (m >= 0x00800000))
1320 {
1321 m >>= 1;
1322 e += 1;
1323 }
1324
1325 return s | (e << 10) | (m >> (23 - 10));
1326 }
1327
1328 /* handle large numbers and infinity */
1329 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1330 return s | 0x7c00;
1331
1332 /* handle zero, subnormals and small numbers */
1333 if (ecb_expect_true (x < 0x38800000))
1334 {
1335 /* zero */
1336 if (ecb_expect_true (!x))
1337 return s;
1338
1339 /* handle subnormals */
1340
1341 /* too small, will be zero */
1342 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1343 return s;
1344
1345 m |= 0x00800000; /* make implicit bit explicit */
1346
1347 /* very tricky - we need to round to the nearest e (+10) bit value */
1348 {
1349 unsigned int bits = 14 - e;
1350 unsigned int half = (1 << (bits - 1)) - 1;
1351 unsigned int even = (m >> bits) & 1;
1352
1353 /* if this overflows, we will end up with a normalised number */
1354 m = (m + half + even) >> bits;
1355 }
1356
1357 return s | m;
1358 }
1359
1360 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1361 m >>= 13;
1362
1363 return s | 0x7c00 | m | !m;
1364}
1365
1366/*******************************************************************************/
1367/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1368
1369/* basically, everything uses "ieee pure-endian" floating point numbers */
1370/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1371#if 0 \
1372 || __i386 || __i386__ \
1373 || ECB_GCC_AMD64 \
1374 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1375 || defined __s390__ || defined __s390x__ \
1376 || defined __mips__ \
1377 || defined __alpha__ \
1378 || defined __hppa__ \
1379 || defined __ia64__ \
1380 || defined __m68k__ \
1381 || defined __m88k__ \
1382 || defined __sh__ \
1383 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1384 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1385 || defined __aarch64__
1386 #define ECB_STDFP 1
1387 #include <string.h> /* for memcpy */
1388#else
1389 #define ECB_STDFP 0
1390#endif
1391
1392#ifndef ECB_NO_LIBM
1393
1394 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1395
1396 /* only the oldest of old doesn't have this one. solaris. */
1397 #ifdef INFINITY
1398 #define ECB_INFINITY INFINITY
1399 #else
1400 #define ECB_INFINITY HUGE_VAL
1401 #endif
1402
1403 #ifdef NAN
1404 #define ECB_NAN NAN
1405 #else
1406 #define ECB_NAN ECB_INFINITY
1407 #endif
1408
1409 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1410 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1411 #define ecb_frexpf(x,e) frexpf ((x), (e))
1412 #else
1413 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1414 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1415 #endif
1416
1417 /* convert a float to ieee single/binary32 */
1418 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1419 ecb_function_ ecb_const uint32_t
1420 ecb_float_to_binary32 (float x)
1421 {
1422 uint32_t r;
1423
1424 #if ECB_STDFP
1425 memcpy (&r, &x, 4);
1426 #else
1427 /* slow emulation, works for anything but -0 */
1428 uint32_t m;
1429 int e;
1430
1431 if (x == 0e0f ) return 0x00000000U;
1432 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1433 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1434 if (x != x ) return 0x7fbfffffU;
1435
1436 m = ecb_frexpf (x, &e) * 0x1000000U;
1437
1438 r = m & 0x80000000U;
1439
1440 if (r)
1441 m = -m;
1442
1443 if (e <= -126)
1444 {
1445 m &= 0xffffffU;
1446 m >>= (-125 - e);
1447 e = -126;
1448 }
1449
1450 r |= (e + 126) << 23;
1451 r |= m & 0x7fffffU;
1452 #endif
1453
1454 return r;
1455 }
1456
1457 /* converts an ieee single/binary32 to a float */
1458 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1459 ecb_function_ ecb_const float
1460 ecb_binary32_to_float (uint32_t x)
1461 {
1462 float r;
1463
1464 #if ECB_STDFP
1465 memcpy (&r, &x, 4);
1466 #else
1467 /* emulation, only works for normals and subnormals and +0 */
1468 int neg = x >> 31;
1469 int e = (x >> 23) & 0xffU;
1470
1471 x &= 0x7fffffU;
1472
1473 if (e)
1474 x |= 0x800000U;
1475 else
1476 e = 1;
1477
1478 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1479 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1480
1481 r = neg ? -r : r;
1482 #endif
1483
1484 return r;
1485 }
1486
1487 /* convert a double to ieee double/binary64 */
1488 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1489 ecb_function_ ecb_const uint64_t
1490 ecb_double_to_binary64 (double x)
1491 {
1492 uint64_t r;
1493
1494 #if ECB_STDFP
1495 memcpy (&r, &x, 8);
1496 #else
1497 /* slow emulation, works for anything but -0 */
1498 uint64_t m;
1499 int e;
1500
1501 if (x == 0e0 ) return 0x0000000000000000U;
1502 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1503 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1504 if (x != x ) return 0X7ff7ffffffffffffU;
1505
1506 m = frexp (x, &e) * 0x20000000000000U;
1507
1508 r = m & 0x8000000000000000;;
1509
1510 if (r)
1511 m = -m;
1512
1513 if (e <= -1022)
1514 {
1515 m &= 0x1fffffffffffffU;
1516 m >>= (-1021 - e);
1517 e = -1022;
1518 }
1519
1520 r |= ((uint64_t)(e + 1022)) << 52;
1521 r |= m & 0xfffffffffffffU;
1522 #endif
1523
1524 return r;
1525 }
1526
1527 /* converts an ieee double/binary64 to a double */
1528 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1529 ecb_function_ ecb_const double
1530 ecb_binary64_to_double (uint64_t x)
1531 {
1532 double r;
1533
1534 #if ECB_STDFP
1535 memcpy (&r, &x, 8);
1536 #else
1537 /* emulation, only works for normals and subnormals and +0 */
1538 int neg = x >> 63;
1539 int e = (x >> 52) & 0x7ffU;
1540
1541 x &= 0xfffffffffffffU;
1542
1543 if (e)
1544 x |= 0x10000000000000U;
1545 else
1546 e = 1;
1547
1548 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1549 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1550
1551 r = neg ? -r : r;
1552 #endif
1553
1554 return r;
1555 }
1556
1557 /* convert a float to ieee half/binary16 */
1558 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1559 ecb_function_ ecb_const uint16_t
1560 ecb_float_to_binary16 (float x)
1561 {
1562 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1563 }
1564
1565 /* convert an ieee half/binary16 to float */
1566 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1567 ecb_function_ ecb_const float
1568 ecb_binary16_to_float (uint16_t x)
1569 {
1570 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1571 }
1572
1573#endif
1574
988#endif 1575#endif
989 1576
990/* ECB.H END */ 1577/* ECB.H END */
991 1578
992#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1579#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
993/* if your architecture doesn't need memory fences, e.g. because it is 1580/* if your architecture doesn't need memory fences, e.g. because it is
994 * single-cpu/core, or if you use libev in a project that doesn't use libev 1581 * single-cpu/core, or if you use libev in a project that doesn't use libev
995 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1582 * from multiple threads, then you can define ECB_NO_THREADS when compiling
996 * libev, in which cases the memory fences become nops. 1583 * libev, in which cases the memory fences become nops.
997 * alternatively, you can remove this #error and link against libpthread, 1584 * alternatively, you can remove this #error and link against libpthread,
998 * which will then provide the memory fences. 1585 * which will then provide the memory fences.
999 */ 1586 */
1000# error "memory fences not defined for your architecture, please report" 1587# error "memory fences not defined for your architecture, please report"
… …
1004# define ECB_MEMORY_FENCE do { } while (0) 1591# define ECB_MEMORY_FENCE do { } while (0)
1005# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1592# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1006# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1593# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1007#endif 1594#endif
1008 1595
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 1596#define inline_size ecb_inline
1014 1597
1015#if EV_FEATURE_CODE 1598#if EV_FEATURE_CODE
1016# define inline_speed ecb_inline 1599# define inline_speed ecb_inline
1017#else 1600#else
1018# define inline_speed static noinline 1601# define inline_speed ecb_noinline static
1019#endif 1602#endif
1603
1604/*****************************************************************************/
1605/* raw syscall wrappers */
1606
1607#if EV_NEED_SYSCALL
1608
1609#include <sys/syscall.h>
1610
1611/*
1612 * define some syscall wrappers for common architectures
1613 * this is mostly for nice looks during debugging, not performance.
1614 * our syscalls return < 0, not == -1, on error. which is good
1615 * enough for linux aio.
1616 * TODO: arm is also common nowadays, maybe even mips and x86
1617 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1618 */
1619#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1620 /* the costly errno access probably kills this for size optimisation */
1621
1622 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1623 ({ \
1624 long res; \
1625 register unsigned long r6 __asm__ ("r9" ); \
1626 register unsigned long r5 __asm__ ("r8" ); \
1627 register unsigned long r4 __asm__ ("r10"); \
1628 register unsigned long r3 __asm__ ("rdx"); \
1629 register unsigned long r2 __asm__ ("rsi"); \
1630 register unsigned long r1 __asm__ ("rdi"); \
1631 if (narg >= 6) r6 = (unsigned long)(arg6); \
1632 if (narg >= 5) r5 = (unsigned long)(arg5); \
1633 if (narg >= 4) r4 = (unsigned long)(arg4); \
1634 if (narg >= 3) r3 = (unsigned long)(arg3); \
1635 if (narg >= 2) r2 = (unsigned long)(arg2); \
1636 if (narg >= 1) r1 = (unsigned long)(arg1); \
1637 __asm__ __volatile__ ( \
1638 "syscall\n\t" \
1639 : "=a" (res) \
1640 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1641 : "cc", "r11", "cx", "memory"); \
1642 errno = -res; \
1643 res; \
1644 })
1645
1646#endif
1647
1648#ifdef ev_syscall
1649 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1650 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1651 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1652 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1653 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1654 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1655 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1656#else
1657 #define ev_syscall0(nr) syscall (nr)
1658 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1659 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1660 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1661 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1662 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1663 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1664#endif
1665
1666#endif
1667
1668/*****************************************************************************/
1020 1669
1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1670#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1022 1671
1023#if EV_MINPRI == EV_MAXPRI 1672#if EV_MINPRI == EV_MAXPRI
1024# define ABSPRI(w) (((W)w), 0) 1673# define ABSPRI(w) (((W)w), 0)
1025#else 1674#else
1026# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1675# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1027#endif 1676#endif
1028 1677
1029#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1678#define EMPTY /* required for microsofts broken pseudo-c compiler */
1030#define EMPTY2(a,b) /* used to suppress some warnings */
1031 1679
1032typedef ev_watcher *W; 1680typedef ev_watcher *W;
1033typedef ev_watcher_list *WL; 1681typedef ev_watcher_list *WL;
1034typedef ev_watcher_time *WT; 1682typedef ev_watcher_time *WT;
1035 1683
… …
1060# include "ev_win32.c" 1708# include "ev_win32.c"
1061#endif 1709#endif
1062 1710
1063/*****************************************************************************/ 1711/*****************************************************************************/
1064 1712
1713#if EV_USE_LINUXAIO
1714# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1715#endif
1716
1065/* define a suitable floor function (only used by periodics atm) */ 1717/* define a suitable floor function (only used by periodics atm) */
1066 1718
1067#if EV_USE_FLOOR 1719#if EV_USE_FLOOR
1068# include <math.h> 1720# include <math.h>
1069# define ev_floor(v) floor (v) 1721# define ev_floor(v) floor (v)
1070#else 1722#else
1071 1723
1072#include <float.h> 1724#include <float.h>
1073 1725
1074/* a floor() replacement function, should be independent of ev_tstamp type */ 1726/* a floor() replacement function, should be independent of ev_tstamp type */
1727ecb_noinline
1075static ev_tstamp noinline 1728static ev_tstamp
1076ev_floor (ev_tstamp v) 1729ev_floor (ev_tstamp v)
1077{ 1730{
1078 /* the choice of shift factor is not terribly important */ 1731 /* the choice of shift factor is not terribly important */
1079#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1732#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1080 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1733 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1081#else 1734#else
1082 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1735 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1083#endif 1736#endif
1084 1737
1738 /* special treatment for negative arguments */
1739 if (ecb_expect_false (v < 0.))
1740 {
1741 ev_tstamp f = -ev_floor (-v);
1742
1743 return f - (f == v ? 0 : 1);
1744 }
1745
1085 /* argument too large for an unsigned long? */ 1746 /* argument too large for an unsigned long? then reduce it */
1086 if (expect_false (v >= shift)) 1747 if (ecb_expect_false (v >= shift))
1087 { 1748 {
1088 ev_tstamp f; 1749 ev_tstamp f;
1089 1750
1090 if (v == v - 1.) 1751 if (v == v - 1.)
1091 return v; /* very large number */ 1752 return v; /* very large numbers are assumed to be integer */
1092 1753
1093 f = shift * ev_floor (v * (1. / shift)); 1754 f = shift * ev_floor (v * (1. / shift));
1094 return f + ev_floor (v - f); 1755 return f + ev_floor (v - f);
1095 } 1756 }
1096 1757
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 */ 1758 /* fits into an unsigned long */
1106 return (unsigned long)v; 1759 return (unsigned long)v;
1107} 1760}
1108 1761
1109#endif 1762#endif
… …
1112 1765
1113#ifdef __linux 1766#ifdef __linux
1114# include <sys/utsname.h> 1767# include <sys/utsname.h>
1115#endif 1768#endif
1116 1769
1117static unsigned int noinline ecb_cold 1770ecb_noinline ecb_cold
1771static unsigned int
1118ev_linux_version (void) 1772ev_linux_version (void)
1119{ 1773{
1120#ifdef __linux 1774#ifdef __linux
1121 unsigned int v = 0; 1775 unsigned int v = 0;
1122 struct utsname buf; 1776 struct utsname buf;
… …
1151} 1805}
1152 1806
1153/*****************************************************************************/ 1807/*****************************************************************************/
1154 1808
1155#if EV_AVOID_STDIO 1809#if EV_AVOID_STDIO
1156static void noinline ecb_cold 1810ecb_noinline ecb_cold
1811static void
1157ev_printerr (const char *msg) 1812ev_printerr (const char *msg)
1158{ 1813{
1159 write (STDERR_FILENO, msg, strlen (msg)); 1814 write (STDERR_FILENO, msg, strlen (msg));
1160} 1815}
1161#endif 1816#endif
1162 1817
1163static void (*syserr_cb)(const char *msg) EV_THROW; 1818static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1164 1819
1165void ecb_cold 1820ecb_cold
1821void
1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1822ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1167{ 1823{
1168 syserr_cb = cb; 1824 syserr_cb = cb;
1169} 1825}
1170 1826
1171static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1172ev_syserr (const char *msg) 1829ev_syserr (const char *msg)
1173{ 1830{
1174 if (!msg) 1831 if (!msg)
1175 msg = "(libev) system error"; 1832 msg = "(libev) system error";
1176 1833
… …
1189 abort (); 1846 abort ();
1190 } 1847 }
1191} 1848}
1192 1849
1193static void * 1850static void *
1194ev_realloc_emul (void *ptr, long size) EV_THROW 1851ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1195{ 1852{
1196 /* some systems, notably openbsd and darwin, fail to properly 1853 /* some systems, notably openbsd and darwin, fail to properly
1197 * implement realloc (x, 0) (as required by both ansi c-89 and 1854 * implement realloc (x, 0) (as required by both ansi c-89 and
1198 * the single unix specification, so work around them here. 1855 * the single unix specification, so work around them here.
1199 * recently, also (at least) fedora and debian started breaking it, 1856 * recently, also (at least) fedora and debian started breaking it,
… …
1205 1862
1206 free (ptr); 1863 free (ptr);
1207 return 0; 1864 return 0;
1208} 1865}
1209 1866
1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1867static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1211 1868
1212void ecb_cold 1869ecb_cold
1870void
1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1871ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1214{ 1872{
1215 alloc = cb; 1873 alloc = cb;
1216} 1874}
1217 1875
1218inline_speed void * 1876inline_speed void *
… …
1245typedef struct 1903typedef struct
1246{ 1904{
1247 WL head; 1905 WL head;
1248 unsigned char events; /* the events watched for */ 1906 unsigned char events; /* the events watched for */
1249 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1907 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1250 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1908 unsigned char emask; /* some backends store the actual kernel mask in here */
1251 unsigned char unused; 1909 unsigned char eflags; /* flags field for use by backends */
1252#if EV_USE_EPOLL 1910#if EV_USE_EPOLL
1253 unsigned int egen; /* generation counter to counter epoll bugs */ 1911 unsigned int egen; /* generation counter to counter epoll bugs */
1254#endif 1912#endif
1255#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1913#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1256 SOCKET handle; 1914 SOCKET handle;
… …
1310 static struct ev_loop default_loop_struct; 1968 static struct ev_loop default_loop_struct;
1311 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 1969 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1312 1970
1313#else 1971#else
1314 1972
1315 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 1973 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1316 #define VAR(name,decl) static decl; 1974 #define VAR(name,decl) static decl;
1317 #include "ev_vars.h" 1975 #include "ev_vars.h"
1318 #undef VAR 1976 #undef VAR
1319 1977
1320 static int ev_default_loop_ptr; 1978 static int ev_default_loop_ptr;
1321 1979
1322#endif 1980#endif
1323 1981
1324#if EV_FEATURE_API 1982#if EV_FEATURE_API
1325# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1983# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1326# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1984# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1327# define EV_INVOKE_PENDING invoke_cb (EV_A) 1985# define EV_INVOKE_PENDING invoke_cb (EV_A)
1328#else 1986#else
1329# define EV_RELEASE_CB (void)0 1987# define EV_RELEASE_CB (void)0
1330# define EV_ACQUIRE_CB (void)0 1988# define EV_ACQUIRE_CB (void)0
1331# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1989# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1335 1993
1336/*****************************************************************************/ 1994/*****************************************************************************/
1337 1995
1338#ifndef EV_HAVE_EV_TIME 1996#ifndef EV_HAVE_EV_TIME
1339ev_tstamp 1997ev_tstamp
1340ev_time (void) EV_THROW 1998ev_time (void) EV_NOEXCEPT
1341{ 1999{
1342#if EV_USE_REALTIME 2000#if EV_USE_REALTIME
1343 if (expect_true (have_realtime)) 2001 if (ecb_expect_true (have_realtime))
1344 { 2002 {
1345 struct timespec ts; 2003 struct timespec ts;
1346 clock_gettime (CLOCK_REALTIME, &ts); 2004 clock_gettime (CLOCK_REALTIME, &ts);
1347 return ts.tv_sec + ts.tv_nsec * 1e-9; 2005 return EV_TS_GET (ts);
1348 } 2006 }
1349#endif 2007#endif
1350 2008
1351 struct timeval tv; 2009 struct timeval tv;
1352 gettimeofday (&tv, 0); 2010 gettimeofday (&tv, 0);
1353 return tv.tv_sec + tv.tv_usec * 1e-6; 2011 return EV_TV_GET (tv);
1354} 2012}
1355#endif 2013#endif
1356 2014
1357inline_size ev_tstamp 2015inline_size ev_tstamp
1358get_clock (void) 2016get_clock (void)
1359{ 2017{
1360#if EV_USE_MONOTONIC 2018#if EV_USE_MONOTONIC
1361 if (expect_true (have_monotonic)) 2019 if (ecb_expect_true (have_monotonic))
1362 { 2020 {
1363 struct timespec ts; 2021 struct timespec ts;
1364 clock_gettime (CLOCK_MONOTONIC, &ts); 2022 clock_gettime (CLOCK_MONOTONIC, &ts);
1365 return ts.tv_sec + ts.tv_nsec * 1e-9; 2023 return EV_TS_GET (ts);
1366 } 2024 }
1367#endif 2025#endif
1368 2026
1369 return ev_time (); 2027 return ev_time ();
1370} 2028}
1371 2029
1372#if EV_MULTIPLICITY 2030#if EV_MULTIPLICITY
1373ev_tstamp 2031ev_tstamp
1374ev_now (EV_P) EV_THROW 2032ev_now (EV_P) EV_NOEXCEPT
1375{ 2033{
1376 return ev_rt_now; 2034 return ev_rt_now;
1377} 2035}
1378#endif 2036#endif
1379 2037
1380void 2038void
1381ev_sleep (ev_tstamp delay) EV_THROW 2039ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1382{ 2040{
1383 if (delay > 0.) 2041 if (delay > EV_TS_CONST (0.))
1384 { 2042 {
1385#if EV_USE_NANOSLEEP 2043#if EV_USE_NANOSLEEP
1386 struct timespec ts; 2044 struct timespec ts;
1387 2045
1388 EV_TS_SET (ts, delay); 2046 EV_TS_SET (ts, delay);
1389 nanosleep (&ts, 0); 2047 nanosleep (&ts, 0);
1390#elif defined _WIN32 2048#elif defined _WIN32
2049 /* maybe this should round up, as ms is very low resolution */
2050 /* compared to select (µs) or nanosleep (ns) */
1391 Sleep ((unsigned long)(delay * 1e3)); 2051 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1392#else 2052#else
1393 struct timeval tv; 2053 struct timeval tv;
1394 2054
1395 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2055 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1396 /* something not guaranteed by newer posix versions, but guaranteed */ 2056 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1426 } 2086 }
1427 2087
1428 return ncur; 2088 return ncur;
1429} 2089}
1430 2090
1431static void * noinline ecb_cold 2091ecb_noinline ecb_cold
2092static void *
1432array_realloc (int elem, void *base, int *cur, int cnt) 2093array_realloc (int elem, void *base, int *cur, int cnt)
1433{ 2094{
1434 *cur = array_nextsize (elem, *cur, cnt); 2095 *cur = array_nextsize (elem, *cur, cnt);
1435 return ev_realloc (base, elem * *cur); 2096 return ev_realloc (base, elem * *cur);
1436} 2097}
1437 2098
2099#define array_needsize_noinit(base,offset,count)
2100
1438#define array_init_zero(base,count) \ 2101#define array_needsize_zerofill(base,offset,count) \
1439 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2102 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1440 2103
1441#define array_needsize(type,base,cur,cnt,init) \ 2104#define array_needsize(type,base,cur,cnt,init) \
1442 if (expect_false ((cnt) > (cur))) \ 2105 if (ecb_expect_false ((cnt) > (cur))) \
1443 { \ 2106 { \
1444 int ecb_unused ocur_ = (cur); \ 2107 ecb_unused int ocur_ = (cur); \
1445 (base) = (type *)array_realloc \ 2108 (base) = (type *)array_realloc \
1446 (sizeof (type), (base), &(cur), (cnt)); \ 2109 (sizeof (type), (base), &(cur), (cnt)); \
1447 init ((base) + (ocur_), (cur) - ocur_); \ 2110 init ((base), ocur_, ((cur) - ocur_)); \
1448 } 2111 }
1449 2112
1450#if 0 2113#if 0
1451#define array_slim(type,stem) \ 2114#define array_slim(type,stem) \
1452 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2115 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 2124 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1462 2125
1463/*****************************************************************************/ 2126/*****************************************************************************/
1464 2127
1465/* dummy callback for pending events */ 2128/* dummy callback for pending events */
1466static void noinline 2129ecb_noinline
2130static void
1467pendingcb (EV_P_ ev_prepare *w, int revents) 2131pendingcb (EV_P_ ev_prepare *w, int revents)
1468{ 2132{
1469} 2133}
1470 2134
1471void noinline 2135ecb_noinline
2136void
1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2137ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1473{ 2138{
1474 W w_ = (W)w; 2139 W w_ = (W)w;
1475 int pri = ABSPRI (w_); 2140 int pri = ABSPRI (w_);
1476 2141
1477 if (expect_false (w_->pending)) 2142 if (ecb_expect_false (w_->pending))
1478 pendings [pri][w_->pending - 1].events |= revents; 2143 pendings [pri][w_->pending - 1].events |= revents;
1479 else 2144 else
1480 { 2145 {
1481 w_->pending = ++pendingcnt [pri]; 2146 w_->pending = ++pendingcnt [pri];
1482 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2147 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1483 pendings [pri][w_->pending - 1].w = w_; 2148 pendings [pri][w_->pending - 1].w = w_;
1484 pendings [pri][w_->pending - 1].events = revents; 2149 pendings [pri][w_->pending - 1].events = revents;
1485 } 2150 }
1486 2151
1487 pendingpri = NUMPRI - 1; 2152 pendingpri = NUMPRI - 1;
1488} 2153}
1489 2154
1490inline_speed void 2155inline_speed void
1491feed_reverse (EV_P_ W w) 2156feed_reverse (EV_P_ W w)
1492{ 2157{
1493 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2158 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1494 rfeeds [rfeedcnt++] = w; 2159 rfeeds [rfeedcnt++] = w;
1495} 2160}
1496 2161
1497inline_size void 2162inline_size void
1498feed_reverse_done (EV_P_ int revents) 2163feed_reverse_done (EV_P_ int revents)
… …
1533inline_speed void 2198inline_speed void
1534fd_event (EV_P_ int fd, int revents) 2199fd_event (EV_P_ int fd, int revents)
1535{ 2200{
1536 ANFD *anfd = anfds + fd; 2201 ANFD *anfd = anfds + fd;
1537 2202
1538 if (expect_true (!anfd->reify)) 2203 if (ecb_expect_true (!anfd->reify))
1539 fd_event_nocheck (EV_A_ fd, revents); 2204 fd_event_nocheck (EV_A_ fd, revents);
1540} 2205}
1541 2206
1542void 2207void
1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2208ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1544{ 2209{
1545 if (fd >= 0 && fd < anfdmax) 2210 if (fd >= 0 && fd < anfdmax)
1546 fd_event_nocheck (EV_A_ fd, revents); 2211 fd_event_nocheck (EV_A_ fd, revents);
1547} 2212}
1548 2213
… …
1585 ev_io *w; 2250 ev_io *w;
1586 2251
1587 unsigned char o_events = anfd->events; 2252 unsigned char o_events = anfd->events;
1588 unsigned char o_reify = anfd->reify; 2253 unsigned char o_reify = anfd->reify;
1589 2254
1590 anfd->reify = 0; 2255 anfd->reify = 0;
1591 2256
1592 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2257 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1593 { 2258 {
1594 anfd->events = 0; 2259 anfd->events = 0;
1595 2260
1596 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2261 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1597 anfd->events |= (unsigned char)w->events; 2262 anfd->events |= (unsigned char)w->events;
… …
1606 2271
1607 fdchangecnt = 0; 2272 fdchangecnt = 0;
1608} 2273}
1609 2274
1610/* something about the given fd changed */ 2275/* something about the given fd changed */
1611inline_size void 2276inline_size
2277void
1612fd_change (EV_P_ int fd, int flags) 2278fd_change (EV_P_ int fd, int flags)
1613{ 2279{
1614 unsigned char reify = anfds [fd].reify; 2280 unsigned char reify = anfds [fd].reify;
1615 anfds [fd].reify |= flags; 2281 anfds [fd].reify |= flags;
1616 2282
1617 if (expect_true (!reify)) 2283 if (ecb_expect_true (!reify))
1618 { 2284 {
1619 ++fdchangecnt; 2285 ++fdchangecnt;
1620 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2286 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1621 fdchanges [fdchangecnt - 1] = fd; 2287 fdchanges [fdchangecnt - 1] = fd;
1622 } 2288 }
1623} 2289}
1624 2290
1625/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2291/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1626inline_speed void ecb_cold 2292inline_speed ecb_cold void
1627fd_kill (EV_P_ int fd) 2293fd_kill (EV_P_ int fd)
1628{ 2294{
1629 ev_io *w; 2295 ev_io *w;
1630 2296
1631 while ((w = (ev_io *)anfds [fd].head)) 2297 while ((w = (ev_io *)anfds [fd].head))
… …
1634 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2300 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1635 } 2301 }
1636} 2302}
1637 2303
1638/* check whether the given fd is actually valid, for error recovery */ 2304/* check whether the given fd is actually valid, for error recovery */
1639inline_size int ecb_cold 2305inline_size ecb_cold int
1640fd_valid (int fd) 2306fd_valid (int fd)
1641{ 2307{
1642#ifdef _WIN32 2308#ifdef _WIN32
1643 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2309 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1644#else 2310#else
1645 return fcntl (fd, F_GETFD) != -1; 2311 return fcntl (fd, F_GETFD) != -1;
1646#endif 2312#endif
1647} 2313}
1648 2314
1649/* called on EBADF to verify fds */ 2315/* called on EBADF to verify fds */
1650static void noinline ecb_cold 2316ecb_noinline ecb_cold
2317static void
1651fd_ebadf (EV_P) 2318fd_ebadf (EV_P)
1652{ 2319{
1653 int fd; 2320 int fd;
1654 2321
1655 for (fd = 0; fd < anfdmax; ++fd) 2322 for (fd = 0; fd < anfdmax; ++fd)
… …
1657 if (!fd_valid (fd) && errno == EBADF) 2324 if (!fd_valid (fd) && errno == EBADF)
1658 fd_kill (EV_A_ fd); 2325 fd_kill (EV_A_ fd);
1659} 2326}
1660 2327
1661/* called on ENOMEM in select/poll to kill some fds and retry */ 2328/* called on ENOMEM in select/poll to kill some fds and retry */
1662static void noinline ecb_cold 2329ecb_noinline ecb_cold
2330static void
1663fd_enomem (EV_P) 2331fd_enomem (EV_P)
1664{ 2332{
1665 int fd; 2333 int fd;
1666 2334
1667 for (fd = anfdmax; fd--; ) 2335 for (fd = anfdmax; fd--; )
… …
1671 break; 2339 break;
1672 } 2340 }
1673} 2341}
1674 2342
1675/* usually called after fork if backend needs to re-arm all fds from scratch */ 2343/* usually called after fork if backend needs to re-arm all fds from scratch */
1676static void noinline 2344ecb_noinline
2345static void
1677fd_rearm_all (EV_P) 2346fd_rearm_all (EV_P)
1678{ 2347{
1679 int fd; 2348 int fd;
1680 2349
1681 for (fd = 0; fd < anfdmax; ++fd) 2350 for (fd = 0; fd < anfdmax; ++fd)
… …
1734 ev_tstamp minat; 2403 ev_tstamp minat;
1735 ANHE *minpos; 2404 ANHE *minpos;
1736 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2405 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1737 2406
1738 /* find minimum child */ 2407 /* find minimum child */
1739 if (expect_true (pos + DHEAP - 1 < E)) 2408 if (ecb_expect_true (pos + DHEAP - 1 < E))
1740 { 2409 {
1741 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2410 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1742 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2411 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)); 2412 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)); 2413 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1745 } 2414 }
1746 else if (pos < E) 2415 else if (pos < E)
1747 { 2416 {
1748 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2417 /* 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)); 2418 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)); 2419 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)); 2420 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1752 } 2421 }
1753 else 2422 else
1754 break; 2423 break;
1755 2424
1756 if (ANHE_at (he) <= minat) 2425 if (ANHE_at (he) <= minat)
… …
1764 2433
1765 heap [k] = he; 2434 heap [k] = he;
1766 ev_active (ANHE_w (he)) = k; 2435 ev_active (ANHE_w (he)) = k;
1767} 2436}
1768 2437
1769#else /* 4HEAP */ 2438#else /* not 4HEAP */
1770 2439
1771#define HEAP0 1 2440#define HEAP0 1
1772#define HPARENT(k) ((k) >> 1) 2441#define HPARENT(k) ((k) >> 1)
1773#define UPHEAP_DONE(p,k) (!(p)) 2442#define UPHEAP_DONE(p,k) (!(p))
1774 2443
… …
1862 2531
1863/*****************************************************************************/ 2532/*****************************************************************************/
1864 2533
1865#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2534#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1866 2535
1867static void noinline ecb_cold 2536ecb_noinline ecb_cold
2537static void
1868evpipe_init (EV_P) 2538evpipe_init (EV_P)
1869{ 2539{
1870 if (!ev_is_active (&pipe_w)) 2540 if (!ev_is_active (&pipe_w))
1871 { 2541 {
1872 int fds [2]; 2542 int fds [2];
… …
1883 while (pipe (fds)) 2553 while (pipe (fds))
1884 ev_syserr ("(libev) error creating signal/async pipe"); 2554 ev_syserr ("(libev) error creating signal/async pipe");
1885 2555
1886 fd_intern (fds [0]); 2556 fd_intern (fds [0]);
1887 } 2557 }
1888
1889 fd_intern (fds [1]);
1890 2558
1891 evpipe [0] = fds [0]; 2559 evpipe [0] = fds [0];
1892 2560
1893 if (evpipe [1] < 0) 2561 if (evpipe [1] < 0)
1894 evpipe [1] = fds [1]; /* first call, set write fd */ 2562 evpipe [1] = fds [1]; /* first call, set write fd */
… …
1901 2569
1902 dup2 (fds [1], evpipe [1]); 2570 dup2 (fds [1], evpipe [1]);
1903 close (fds [1]); 2571 close (fds [1]);
1904 } 2572 }
1905 2573
2574 fd_intern (evpipe [1]);
2575
1906 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2576 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1907 ev_io_start (EV_A_ &pipe_w); 2577 ev_io_start (EV_A_ &pipe_w);
1908 ev_unref (EV_A); /* watcher should not keep loop alive */ 2578 ev_unref (EV_A); /* watcher should not keep loop alive */
1909 } 2579 }
1910} 2580}
… …
1912inline_speed void 2582inline_speed void
1913evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2583evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1914{ 2584{
1915 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2585 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1916 2586
1917 if (expect_true (*flag)) 2587 if (ecb_expect_true (*flag))
1918 return; 2588 return;
1919 2589
1920 *flag = 1; 2590 *flag = 1;
1921 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2591 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1922 2592
… …
1943#endif 2613#endif
1944 { 2614 {
1945#ifdef _WIN32 2615#ifdef _WIN32
1946 WSABUF buf; 2616 WSABUF buf;
1947 DWORD sent; 2617 DWORD sent;
1948 buf.buf = &buf; 2618 buf.buf = (char *)&buf;
1949 buf.len = 1; 2619 buf.len = 1;
1950 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2620 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1951#else 2621#else
1952 write (evpipe [1], &(evpipe [1]), 1); 2622 write (evpipe [1], &(evpipe [1]), 1);
1953#endif 2623#endif
… …
1999 sig_pending = 0; 2669 sig_pending = 0;
2000 2670
2001 ECB_MEMORY_FENCE; 2671 ECB_MEMORY_FENCE;
2002 2672
2003 for (i = EV_NSIG - 1; i--; ) 2673 for (i = EV_NSIG - 1; i--; )
2004 if (expect_false (signals [i].pending)) 2674 if (ecb_expect_false (signals [i].pending))
2005 ev_feed_signal_event (EV_A_ i + 1); 2675 ev_feed_signal_event (EV_A_ i + 1);
2006 } 2676 }
2007#endif 2677#endif
2008 2678
2009#if EV_ASYNC_ENABLE 2679#if EV_ASYNC_ENABLE
… …
2025} 2695}
2026 2696
2027/*****************************************************************************/ 2697/*****************************************************************************/
2028 2698
2029void 2699void
2030ev_feed_signal (int signum) EV_THROW 2700ev_feed_signal (int signum) EV_NOEXCEPT
2031{ 2701{
2032#if EV_MULTIPLICITY 2702#if EV_MULTIPLICITY
2703 EV_P;
2704 ECB_MEMORY_FENCE_ACQUIRE;
2033 EV_P = signals [signum - 1].loop; 2705 EV_A = signals [signum - 1].loop;
2034 2706
2035 if (!EV_A) 2707 if (!EV_A)
2036 return; 2708 return;
2037#endif 2709#endif
2038 2710
… …
2048#endif 2720#endif
2049 2721
2050 ev_feed_signal (signum); 2722 ev_feed_signal (signum);
2051} 2723}
2052 2724
2053void noinline 2725ecb_noinline
2726void
2054ev_feed_signal_event (EV_P_ int signum) EV_THROW 2727ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2055{ 2728{
2056 WL w; 2729 WL w;
2057 2730
2058 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2731 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2059 return; 2732 return;
2060 2733
2061 --signum; 2734 --signum;
2062 2735
2063#if EV_MULTIPLICITY 2736#if EV_MULTIPLICITY
2064 /* it is permissible to try to feed a signal to the wrong loop */ 2737 /* it is permissible to try to feed a signal to the wrong loop */
2065 /* or, likely more useful, feeding a signal nobody is waiting for */ 2738 /* or, likely more useful, feeding a signal nobody is waiting for */
2066 2739
2067 if (expect_false (signals [signum].loop != EV_A)) 2740 if (ecb_expect_false (signals [signum].loop != EV_A))
2068 return; 2741 return;
2069#endif 2742#endif
2070 2743
2071 signals [signum].pending = 0; 2744 signals [signum].pending = 0;
2072 ECB_MEMORY_FENCE_RELEASE; 2745 ECB_MEMORY_FENCE_RELEASE;
… …
2168# include "ev_kqueue.c" 2841# include "ev_kqueue.c"
2169#endif 2842#endif
2170#if EV_USE_EPOLL 2843#if EV_USE_EPOLL
2171# include "ev_epoll.c" 2844# include "ev_epoll.c"
2172#endif 2845#endif
2846#if EV_USE_LINUXAIO
2847# include "ev_linuxaio.c"
2848#endif
2849#if EV_USE_IOURING
2850# include "ev_iouring.c"
2851#endif
2173#if EV_USE_POLL 2852#if EV_USE_POLL
2174# include "ev_poll.c" 2853# include "ev_poll.c"
2175#endif 2854#endif
2176#if EV_USE_SELECT 2855#if EV_USE_SELECT
2177# include "ev_select.c" 2856# include "ev_select.c"
2178#endif 2857#endif
2179 2858
2180int ecb_cold 2859ecb_cold int
2181ev_version_major (void) EV_THROW 2860ev_version_major (void) EV_NOEXCEPT
2182{ 2861{
2183 return EV_VERSION_MAJOR; 2862 return EV_VERSION_MAJOR;
2184} 2863}
2185 2864
2186int ecb_cold 2865ecb_cold int
2187ev_version_minor (void) EV_THROW 2866ev_version_minor (void) EV_NOEXCEPT
2188{ 2867{
2189 return EV_VERSION_MINOR; 2868 return EV_VERSION_MINOR;
2190} 2869}
2191 2870
2192/* return true if we are running with elevated privileges and should ignore env variables */ 2871/* return true if we are running with elevated privileges and should ignore env variables */
2193int inline_size ecb_cold 2872inline_size ecb_cold int
2194enable_secure (void) 2873enable_secure (void)
2195{ 2874{
2196#ifdef _WIN32 2875#ifdef _WIN32
2197 return 0; 2876 return 0;
2198#else 2877#else
2199 return getuid () != geteuid () 2878 return getuid () != geteuid ()
2200 || getgid () != getegid (); 2879 || getgid () != getegid ();
2201#endif 2880#endif
2202} 2881}
2203 2882
2204unsigned int ecb_cold 2883ecb_cold
2884unsigned int
2205ev_supported_backends (void) EV_THROW 2885ev_supported_backends (void) EV_NOEXCEPT
2206{ 2886{
2207 unsigned int flags = 0; 2887 unsigned int flags = 0;
2208 2888
2209 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2889 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2210 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2890 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2211 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2891 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2892 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2893 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2212 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2894 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2213 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2895 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2214 2896
2215 return flags; 2897 return flags;
2216} 2898}
2217 2899
2218unsigned int ecb_cold 2900ecb_cold
2901unsigned int
2219ev_recommended_backends (void) EV_THROW 2902ev_recommended_backends (void) EV_NOEXCEPT
2220{ 2903{
2221 unsigned int flags = ev_supported_backends (); 2904 unsigned int flags = ev_supported_backends ();
2222 2905
2223#ifndef __NetBSD__ 2906#ifndef __NetBSD__
2224 /* kqueue is borked on everything but netbsd apparently */ 2907 /* kqueue is borked on everything but netbsd apparently */
… …
2232#endif 2915#endif
2233#ifdef __FreeBSD__ 2916#ifdef __FreeBSD__
2234 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2917 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2235#endif 2918#endif
2236 2919
2920 /* TODO: linuxaio is very experimental */
2921#if !EV_RECOMMEND_LINUXAIO
2922 flags &= ~EVBACKEND_LINUXAIO;
2923#endif
2924 /* TODO: linuxaio is super experimental */
2925#if !EV_RECOMMEND_IOURING
2926 flags &= ~EVBACKEND_IOURING;
2927#endif
2928
2237 return flags; 2929 return flags;
2238} 2930}
2239 2931
2240unsigned int ecb_cold 2932ecb_cold
2933unsigned int
2241ev_embeddable_backends (void) EV_THROW 2934ev_embeddable_backends (void) EV_NOEXCEPT
2242{ 2935{
2243 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2936 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2244 2937
2245 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2938 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2246 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2939 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2247 flags &= ~EVBACKEND_EPOLL; 2940 flags &= ~EVBACKEND_EPOLL;
2248 2941
2942 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2943
2944 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2945 * because our backend_fd is the epoll fd we need as fallback.
2946 * if the kernel ever is fixed, this might change...
2947 */
2948
2249 return flags; 2949 return flags;
2250} 2950}
2251 2951
2252unsigned int 2952unsigned int
2253ev_backend (EV_P) EV_THROW 2953ev_backend (EV_P) EV_NOEXCEPT
2254{ 2954{
2255 return backend; 2955 return backend;
2256} 2956}
2257 2957
2258#if EV_FEATURE_API 2958#if EV_FEATURE_API
2259unsigned int 2959unsigned int
2260ev_iteration (EV_P) EV_THROW 2960ev_iteration (EV_P) EV_NOEXCEPT
2261{ 2961{
2262 return loop_count; 2962 return loop_count;
2263} 2963}
2264 2964
2265unsigned int 2965unsigned int
2266ev_depth (EV_P) EV_THROW 2966ev_depth (EV_P) EV_NOEXCEPT
2267{ 2967{
2268 return loop_depth; 2968 return loop_depth;
2269} 2969}
2270 2970
2271void 2971void
2272ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2972ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2273{ 2973{
2274 io_blocktime = interval; 2974 io_blocktime = interval;
2275} 2975}
2276 2976
2277void 2977void
2278ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2978ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2279{ 2979{
2280 timeout_blocktime = interval; 2980 timeout_blocktime = interval;
2281} 2981}
2282 2982
2283void 2983void
2284ev_set_userdata (EV_P_ void *data) EV_THROW 2984ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2285{ 2985{
2286 userdata = data; 2986 userdata = data;
2287} 2987}
2288 2988
2289void * 2989void *
2290ev_userdata (EV_P) EV_THROW 2990ev_userdata (EV_P) EV_NOEXCEPT
2291{ 2991{
2292 return userdata; 2992 return userdata;
2293} 2993}
2294 2994
2295void 2995void
2296ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2996ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2297{ 2997{
2298 invoke_cb = invoke_pending_cb; 2998 invoke_cb = invoke_pending_cb;
2299} 2999}
2300 3000
2301void 3001void
2302ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3002ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2303{ 3003{
2304 release_cb = release; 3004 release_cb = release;
2305 acquire_cb = acquire; 3005 acquire_cb = acquire;
2306} 3006}
2307#endif 3007#endif
2308 3008
2309/* initialise a loop structure, must be zero-initialised */ 3009/* initialise a loop structure, must be zero-initialised */
2310static void noinline ecb_cold 3010ecb_noinline ecb_cold
3011static void
2311loop_init (EV_P_ unsigned int flags) EV_THROW 3012loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2312{ 3013{
2313 if (!backend) 3014 if (!backend)
2314 { 3015 {
2315 origflags = flags; 3016 origflags = flags;
2316 3017
… …
2374 3075
2375 if (!(flags & EVBACKEND_MASK)) 3076 if (!(flags & EVBACKEND_MASK))
2376 flags |= ev_recommended_backends (); 3077 flags |= ev_recommended_backends ();
2377 3078
2378#if EV_USE_IOCP 3079#if EV_USE_IOCP
2379 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3080 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2380#endif 3081#endif
2381#if EV_USE_PORT 3082#if EV_USE_PORT
2382 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3083 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2383#endif 3084#endif
2384#if EV_USE_KQUEUE 3085#if EV_USE_KQUEUE
2385 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3086 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3087#endif
3088#if EV_USE_IOURING
3089 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3090#endif
3091#if EV_USE_LINUXAIO
3092 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2386#endif 3093#endif
2387#if EV_USE_EPOLL 3094#if EV_USE_EPOLL
2388 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3095 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2389#endif 3096#endif
2390#if EV_USE_POLL 3097#if EV_USE_POLL
2391 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3098 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2392#endif 3099#endif
2393#if EV_USE_SELECT 3100#if EV_USE_SELECT
2394 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3101 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2395#endif 3102#endif
2396 3103
2397 ev_prepare_init (&pending_w, pendingcb); 3104 ev_prepare_init (&pending_w, pendingcb);
2398 3105
2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3106#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2402#endif 3109#endif
2403 } 3110 }
2404} 3111}
2405 3112
2406/* free up a loop structure */ 3113/* free up a loop structure */
2407void ecb_cold 3114ecb_cold
3115void
2408ev_loop_destroy (EV_P) 3116ev_loop_destroy (EV_P)
2409{ 3117{
2410 int i; 3118 int i;
2411 3119
2412#if EV_MULTIPLICITY 3120#if EV_MULTIPLICITY
… …
2415 return; 3123 return;
2416#endif 3124#endif
2417 3125
2418#if EV_CLEANUP_ENABLE 3126#if EV_CLEANUP_ENABLE
2419 /* queue cleanup watchers (and execute them) */ 3127 /* queue cleanup watchers (and execute them) */
2420 if (expect_false (cleanupcnt)) 3128 if (ecb_expect_false (cleanupcnt))
2421 { 3129 {
2422 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3130 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2423 EV_INVOKE_PENDING; 3131 EV_INVOKE_PENDING;
2424 } 3132 }
2425#endif 3133#endif
… …
2453 3161
2454 if (backend_fd >= 0) 3162 if (backend_fd >= 0)
2455 close (backend_fd); 3163 close (backend_fd);
2456 3164
2457#if EV_USE_IOCP 3165#if EV_USE_IOCP
2458 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3166 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2459#endif 3167#endif
2460#if EV_USE_PORT 3168#if EV_USE_PORT
2461 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3169 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2462#endif 3170#endif
2463#if EV_USE_KQUEUE 3171#if EV_USE_KQUEUE
2464 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3172 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3173#endif
3174#if EV_USE_IOURING
3175 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3176#endif
3177#if EV_USE_LINUXAIO
3178 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2465#endif 3179#endif
2466#if EV_USE_EPOLL 3180#if EV_USE_EPOLL
2467 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3181 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2468#endif 3182#endif
2469#if EV_USE_POLL 3183#if EV_USE_POLL
2470 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3184 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2471#endif 3185#endif
2472#if EV_USE_SELECT 3186#if EV_USE_SELECT
2473 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3187 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2474#endif 3188#endif
2475 3189
2476 for (i = NUMPRI; i--; ) 3190 for (i = NUMPRI; i--; )
2477 { 3191 {
2478 array_free (pending, [i]); 3192 array_free (pending, [i]);
… …
2520 3234
2521inline_size void 3235inline_size void
2522loop_fork (EV_P) 3236loop_fork (EV_P)
2523{ 3237{
2524#if EV_USE_PORT 3238#if EV_USE_PORT
2525 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3239 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2526#endif 3240#endif
2527#if EV_USE_KQUEUE 3241#if EV_USE_KQUEUE
2528 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3242 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3243#endif
3244#if EV_USE_IOURING
3245 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3246#endif
3247#if EV_USE_LINUXAIO
3248 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2529#endif 3249#endif
2530#if EV_USE_EPOLL 3250#if EV_USE_EPOLL
2531 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3251 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2532#endif 3252#endif
2533#if EV_USE_INOTIFY 3253#if EV_USE_INOTIFY
2534 infy_fork (EV_A); 3254 infy_fork (EV_A);
2535#endif 3255#endif
2536 3256
2537#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3257#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2538 if (ev_is_active (&pipe_w)) 3258 if (ev_is_active (&pipe_w) && postfork != 2)
2539 { 3259 {
2540 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3260 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2541 3261
2542 ev_ref (EV_A); 3262 ev_ref (EV_A);
2543 ev_io_stop (EV_A_ &pipe_w); 3263 ev_io_stop (EV_A_ &pipe_w);
… …
2554 postfork = 0; 3274 postfork = 0;
2555} 3275}
2556 3276
2557#if EV_MULTIPLICITY 3277#if EV_MULTIPLICITY
2558 3278
3279ecb_cold
2559struct ev_loop * ecb_cold 3280struct ev_loop *
2560ev_loop_new (unsigned int flags) EV_THROW 3281ev_loop_new (unsigned int flags) EV_NOEXCEPT
2561{ 3282{
2562 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3283 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2563 3284
2564 memset (EV_A, 0, sizeof (struct ev_loop)); 3285 memset (EV_A, 0, sizeof (struct ev_loop));
2565 loop_init (EV_A_ flags); 3286 loop_init (EV_A_ flags);
… …
2572} 3293}
2573 3294
2574#endif /* multiplicity */ 3295#endif /* multiplicity */
2575 3296
2576#if EV_VERIFY 3297#if EV_VERIFY
2577static void noinline ecb_cold 3298ecb_noinline ecb_cold
3299static void
2578verify_watcher (EV_P_ W w) 3300verify_watcher (EV_P_ W w)
2579{ 3301{
2580 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3302 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2581 3303
2582 if (w->pending) 3304 if (w->pending)
2583 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3305 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2584} 3306}
2585 3307
2586static void noinline ecb_cold 3308ecb_noinline ecb_cold
3309static void
2587verify_heap (EV_P_ ANHE *heap, int N) 3310verify_heap (EV_P_ ANHE *heap, int N)
2588{ 3311{
2589 int i; 3312 int i;
2590 3313
2591 for (i = HEAP0; i < N + HEAP0; ++i) 3314 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2596 3319
2597 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3320 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2598 } 3321 }
2599} 3322}
2600 3323
2601static void noinline ecb_cold 3324ecb_noinline ecb_cold
3325static void
2602array_verify (EV_P_ W *ws, int cnt) 3326array_verify (EV_P_ W *ws, int cnt)
2603{ 3327{
2604 while (cnt--) 3328 while (cnt--)
2605 { 3329 {
2606 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3330 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2609} 3333}
2610#endif 3334#endif
2611 3335
2612#if EV_FEATURE_API 3336#if EV_FEATURE_API
2613void ecb_cold 3337void ecb_cold
2614ev_verify (EV_P) EV_THROW 3338ev_verify (EV_P) EV_NOEXCEPT
2615{ 3339{
2616#if EV_VERIFY 3340#if EV_VERIFY
2617 int i; 3341 int i;
2618 WL w, w2; 3342 WL w, w2;
2619 3343
… …
2695#endif 3419#endif
2696} 3420}
2697#endif 3421#endif
2698 3422
2699#if EV_MULTIPLICITY 3423#if EV_MULTIPLICITY
3424ecb_cold
2700struct ev_loop * ecb_cold 3425struct ev_loop *
2701#else 3426#else
2702int 3427int
2703#endif 3428#endif
2704ev_default_loop (unsigned int flags) EV_THROW 3429ev_default_loop (unsigned int flags) EV_NOEXCEPT
2705{ 3430{
2706 if (!ev_default_loop_ptr) 3431 if (!ev_default_loop_ptr)
2707 { 3432 {
2708#if EV_MULTIPLICITY 3433#if EV_MULTIPLICITY
2709 EV_P = ev_default_loop_ptr = &default_loop_struct; 3434 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2728 3453
2729 return ev_default_loop_ptr; 3454 return ev_default_loop_ptr;
2730} 3455}
2731 3456
2732void 3457void
2733ev_loop_fork (EV_P) EV_THROW 3458ev_loop_fork (EV_P) EV_NOEXCEPT
2734{ 3459{
2735 postfork = 1; 3460 postfork = 1;
2736} 3461}
2737 3462
2738/*****************************************************************************/ 3463/*****************************************************************************/
… …
2742{ 3467{
2743 EV_CB_INVOKE ((W)w, revents); 3468 EV_CB_INVOKE ((W)w, revents);
2744} 3469}
2745 3470
2746unsigned int 3471unsigned int
2747ev_pending_count (EV_P) EV_THROW 3472ev_pending_count (EV_P) EV_NOEXCEPT
2748{ 3473{
2749 int pri; 3474 int pri;
2750 unsigned int count = 0; 3475 unsigned int count = 0;
2751 3476
2752 for (pri = NUMPRI; pri--; ) 3477 for (pri = NUMPRI; pri--; )
2753 count += pendingcnt [pri]; 3478 count += pendingcnt [pri];
2754 3479
2755 return count; 3480 return count;
2756} 3481}
2757 3482
2758void noinline 3483ecb_noinline
3484void
2759ev_invoke_pending (EV_P) 3485ev_invoke_pending (EV_P)
2760{ 3486{
2761 pendingpri = NUMPRI; 3487 pendingpri = NUMPRI;
2762 3488
2763 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3489 do
2764 { 3490 {
2765 --pendingpri; 3491 --pendingpri;
2766 3492
3493 /* pendingpri possibly gets modified in the inner loop */
2767 while (pendingcnt [pendingpri]) 3494 while (pendingcnt [pendingpri])
2768 { 3495 {
2769 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3496 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2770 3497
2771 p->w->pending = 0; 3498 p->w->pending = 0;
2772 EV_CB_INVOKE (p->w, p->events); 3499 EV_CB_INVOKE (p->w, p->events);
2773 EV_FREQUENT_CHECK; 3500 EV_FREQUENT_CHECK;
2774 } 3501 }
2775 } 3502 }
3503 while (pendingpri);
2776} 3504}
2777 3505
2778#if EV_IDLE_ENABLE 3506#if EV_IDLE_ENABLE
2779/* make idle watchers pending. this handles the "call-idle */ 3507/* make idle watchers pending. this handles the "call-idle */
2780/* only when higher priorities are idle" logic */ 3508/* only when higher priorities are idle" logic */
2781inline_size void 3509inline_size void
2782idle_reify (EV_P) 3510idle_reify (EV_P)
2783{ 3511{
2784 if (expect_false (idleall)) 3512 if (ecb_expect_false (idleall))
2785 { 3513 {
2786 int pri; 3514 int pri;
2787 3515
2788 for (pri = NUMPRI; pri--; ) 3516 for (pri = NUMPRI; pri--; )
2789 { 3517 {
… …
2819 { 3547 {
2820 ev_at (w) += w->repeat; 3548 ev_at (w) += w->repeat;
2821 if (ev_at (w) < mn_now) 3549 if (ev_at (w) < mn_now)
2822 ev_at (w) = mn_now; 3550 ev_at (w) = mn_now;
2823 3551
2824 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3552 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
2825 3553
2826 ANHE_at_cache (timers [HEAP0]); 3554 ANHE_at_cache (timers [HEAP0]);
2827 downheap (timers, timercnt, HEAP0); 3555 downheap (timers, timercnt, HEAP0);
2828 } 3556 }
2829 else 3557 else
… …
2838 } 3566 }
2839} 3567}
2840 3568
2841#if EV_PERIODIC_ENABLE 3569#if EV_PERIODIC_ENABLE
2842 3570
2843static void noinline 3571ecb_noinline
3572static void
2844periodic_recalc (EV_P_ ev_periodic *w) 3573periodic_recalc (EV_P_ ev_periodic *w)
2845{ 3574{
2846 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3575 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2847 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3576 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2848 3577
… …
2850 while (at <= ev_rt_now) 3579 while (at <= ev_rt_now)
2851 { 3580 {
2852 ev_tstamp nat = at + w->interval; 3581 ev_tstamp nat = at + w->interval;
2853 3582
2854 /* when resolution fails us, we use ev_rt_now */ 3583 /* when resolution fails us, we use ev_rt_now */
2855 if (expect_false (nat == at)) 3584 if (ecb_expect_false (nat == at))
2856 { 3585 {
2857 at = ev_rt_now; 3586 at = ev_rt_now;
2858 break; 3587 break;
2859 } 3588 }
2860 3589
… …
2906 } 3635 }
2907} 3636}
2908 3637
2909/* simply recalculate all periodics */ 3638/* simply recalculate all periodics */
2910/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3639/* TODO: maybe ensure that at least one event happens when jumping forward? */
2911static void noinline ecb_cold 3640ecb_noinline ecb_cold
3641static void
2912periodics_reschedule (EV_P) 3642periodics_reschedule (EV_P)
2913{ 3643{
2914 int i; 3644 int i;
2915 3645
2916 /* adjust periodics after time jump */ 3646 /* adjust periodics after time jump */
… …
2929 reheap (periodics, periodiccnt); 3659 reheap (periodics, periodiccnt);
2930} 3660}
2931#endif 3661#endif
2932 3662
2933/* adjust all timers by a given offset */ 3663/* adjust all timers by a given offset */
2934static void noinline ecb_cold 3664ecb_noinline ecb_cold
3665static void
2935timers_reschedule (EV_P_ ev_tstamp adjust) 3666timers_reschedule (EV_P_ ev_tstamp adjust)
2936{ 3667{
2937 int i; 3668 int i;
2938 3669
2939 for (i = 0; i < timercnt; ++i) 3670 for (i = 0; i < timercnt; ++i)
… …
2948/* also detect if there was a timejump, and act accordingly */ 3679/* also detect if there was a timejump, and act accordingly */
2949inline_speed void 3680inline_speed void
2950time_update (EV_P_ ev_tstamp max_block) 3681time_update (EV_P_ ev_tstamp max_block)
2951{ 3682{
2952#if EV_USE_MONOTONIC 3683#if EV_USE_MONOTONIC
2953 if (expect_true (have_monotonic)) 3684 if (ecb_expect_true (have_monotonic))
2954 { 3685 {
2955 int i; 3686 int i;
2956 ev_tstamp odiff = rtmn_diff; 3687 ev_tstamp odiff = rtmn_diff;
2957 3688
2958 mn_now = get_clock (); 3689 mn_now = get_clock ();
2959 3690
2960 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3691 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
2961 /* interpolate in the meantime */ 3692 /* interpolate in the meantime */
2962 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3693 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
2963 { 3694 {
2964 ev_rt_now = rtmn_diff + mn_now; 3695 ev_rt_now = rtmn_diff + mn_now;
2965 return; 3696 return;
2966 } 3697 }
2967 3698
… …
2981 ev_tstamp diff; 3712 ev_tstamp diff;
2982 rtmn_diff = ev_rt_now - mn_now; 3713 rtmn_diff = ev_rt_now - mn_now;
2983 3714
2984 diff = odiff - rtmn_diff; 3715 diff = odiff - rtmn_diff;
2985 3716
2986 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3717 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
2987 return; /* all is well */ 3718 return; /* all is well */
2988 3719
2989 ev_rt_now = ev_time (); 3720 ev_rt_now = ev_time ();
2990 mn_now = get_clock (); 3721 mn_now = get_clock ();
2991 now_floor = mn_now; 3722 now_floor = mn_now;
… …
3000 else 3731 else
3001#endif 3732#endif
3002 { 3733 {
3003 ev_rt_now = ev_time (); 3734 ev_rt_now = ev_time ();
3004 3735
3005 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3736 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3006 { 3737 {
3007 /* adjust timers. this is easy, as the offset is the same for all of them */ 3738 /* adjust timers. this is easy, as the offset is the same for all of them */
3008 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3739 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3009#if EV_PERIODIC_ENABLE 3740#if EV_PERIODIC_ENABLE
3010 periodics_reschedule (EV_A); 3741 periodics_reschedule (EV_A);
… …
3033#if EV_VERIFY >= 2 3764#if EV_VERIFY >= 2
3034 ev_verify (EV_A); 3765 ev_verify (EV_A);
3035#endif 3766#endif
3036 3767
3037#ifndef _WIN32 3768#ifndef _WIN32
3038 if (expect_false (curpid)) /* penalise the forking check even more */ 3769 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3039 if (expect_false (getpid () != curpid)) 3770 if (ecb_expect_false (getpid () != curpid))
3040 { 3771 {
3041 curpid = getpid (); 3772 curpid = getpid ();
3042 postfork = 1; 3773 postfork = 1;
3043 } 3774 }
3044#endif 3775#endif
3045 3776
3046#if EV_FORK_ENABLE 3777#if EV_FORK_ENABLE
3047 /* we might have forked, so queue fork handlers */ 3778 /* we might have forked, so queue fork handlers */
3048 if (expect_false (postfork)) 3779 if (ecb_expect_false (postfork))
3049 if (forkcnt) 3780 if (forkcnt)
3050 { 3781 {
3051 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3782 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3052 EV_INVOKE_PENDING; 3783 EV_INVOKE_PENDING;
3053 } 3784 }
3054#endif 3785#endif
3055 3786
3056#if EV_PREPARE_ENABLE 3787#if EV_PREPARE_ENABLE
3057 /* queue prepare watchers (and execute them) */ 3788 /* queue prepare watchers (and execute them) */
3058 if (expect_false (preparecnt)) 3789 if (ecb_expect_false (preparecnt))
3059 { 3790 {
3060 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3791 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3061 EV_INVOKE_PENDING; 3792 EV_INVOKE_PENDING;
3062 } 3793 }
3063#endif 3794#endif
3064 3795
3065 if (expect_false (loop_done)) 3796 if (ecb_expect_false (loop_done))
3066 break; 3797 break;
3067 3798
3068 /* we might have forked, so reify kernel state if necessary */ 3799 /* we might have forked, so reify kernel state if necessary */
3069 if (expect_false (postfork)) 3800 if (ecb_expect_false (postfork))
3070 loop_fork (EV_A); 3801 loop_fork (EV_A);
3071 3802
3072 /* update fd-related kernel structures */ 3803 /* update fd-related kernel structures */
3073 fd_reify (EV_A); 3804 fd_reify (EV_A);
3074 3805
… …
3079 3810
3080 /* remember old timestamp for io_blocktime calculation */ 3811 /* remember old timestamp for io_blocktime calculation */
3081 ev_tstamp prev_mn_now = mn_now; 3812 ev_tstamp prev_mn_now = mn_now;
3082 3813
3083 /* update time to cancel out callback processing overhead */ 3814 /* update time to cancel out callback processing overhead */
3084 time_update (EV_A_ 1e100); 3815 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3085 3816
3086 /* from now on, we want a pipe-wake-up */ 3817 /* from now on, we want a pipe-wake-up */
3087 pipe_write_wanted = 1; 3818 pipe_write_wanted = 1;
3088 3819
3089 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3820 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3090 3821
3091 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3822 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3092 { 3823 {
3093 waittime = MAX_BLOCKTIME; 3824 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3094 3825
3095 if (timercnt) 3826 if (timercnt)
3096 { 3827 {
3097 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3828 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3098 if (waittime > to) waittime = to; 3829 if (waittime > to) waittime = to;
… …
3105 if (waittime > to) waittime = to; 3836 if (waittime > to) waittime = to;
3106 } 3837 }
3107#endif 3838#endif
3108 3839
3109 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3840 /* don't let timeouts decrease the waittime below timeout_blocktime */
3110 if (expect_false (waittime < timeout_blocktime)) 3841 if (ecb_expect_false (waittime < timeout_blocktime))
3111 waittime = timeout_blocktime; 3842 waittime = timeout_blocktime;
3112 3843
3113 /* at this point, we NEED to wait, so we have to ensure */ 3844 /* at this point, we NEED to wait, so we have to ensure */
3114 /* to pass a minimum nonzero value to the backend */ 3845 /* to pass a minimum nonzero value to the backend */
3115 if (expect_false (waittime < backend_mintime)) 3846 if (ecb_expect_false (waittime < backend_mintime))
3116 waittime = backend_mintime; 3847 waittime = backend_mintime;
3117 3848
3118 /* extra check because io_blocktime is commonly 0 */ 3849 /* extra check because io_blocktime is commonly 0 */
3119 if (expect_false (io_blocktime)) 3850 if (ecb_expect_false (io_blocktime))
3120 { 3851 {
3121 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3852 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3122 3853
3123 if (sleeptime > waittime - backend_mintime) 3854 if (sleeptime > waittime - backend_mintime)
3124 sleeptime = waittime - backend_mintime; 3855 sleeptime = waittime - backend_mintime;
3125 3856
3126 if (expect_true (sleeptime > 0.)) 3857 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3127 { 3858 {
3128 ev_sleep (sleeptime); 3859 ev_sleep (sleeptime);
3129 waittime -= sleeptime; 3860 waittime -= sleeptime;
3130 } 3861 }
3131 } 3862 }
… …
3145 { 3876 {
3146 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3877 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3147 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3878 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3148 } 3879 }
3149 3880
3150
3151 /* update ev_rt_now, do magic */ 3881 /* update ev_rt_now, do magic */
3152 time_update (EV_A_ waittime + sleeptime); 3882 time_update (EV_A_ waittime + sleeptime);
3153 } 3883 }
3154 3884
3155 /* queue pending timers and reschedule them */ 3885 /* queue pending timers and reschedule them */
… …
3163 idle_reify (EV_A); 3893 idle_reify (EV_A);
3164#endif 3894#endif
3165 3895
3166#if EV_CHECK_ENABLE 3896#if EV_CHECK_ENABLE
3167 /* queue check watchers, to be executed first */ 3897 /* queue check watchers, to be executed first */
3168 if (expect_false (checkcnt)) 3898 if (ecb_expect_false (checkcnt))
3169 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3899 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3170#endif 3900#endif
3171 3901
3172 EV_INVOKE_PENDING; 3902 EV_INVOKE_PENDING;
3173 } 3903 }
3174 while (expect_true ( 3904 while (ecb_expect_true (
3175 activecnt 3905 activecnt
3176 && !loop_done 3906 && !loop_done
3177 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3907 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3178 )); 3908 ));
3179 3909
… …
3186 3916
3187 return activecnt; 3917 return activecnt;
3188} 3918}
3189 3919
3190void 3920void
3191ev_break (EV_P_ int how) EV_THROW 3921ev_break (EV_P_ int how) EV_NOEXCEPT
3192{ 3922{
3193 loop_done = how; 3923 loop_done = how;
3194} 3924}
3195 3925
3196void 3926void
3197ev_ref (EV_P) EV_THROW 3927ev_ref (EV_P) EV_NOEXCEPT
3198{ 3928{
3199 ++activecnt; 3929 ++activecnt;
3200} 3930}
3201 3931
3202void 3932void
3203ev_unref (EV_P) EV_THROW 3933ev_unref (EV_P) EV_NOEXCEPT
3204{ 3934{
3205 --activecnt; 3935 --activecnt;
3206} 3936}
3207 3937
3208void 3938void
3209ev_now_update (EV_P) EV_THROW 3939ev_now_update (EV_P) EV_NOEXCEPT
3210{ 3940{
3211 time_update (EV_A_ 1e100); 3941 time_update (EV_A_ EV_TSTAMP_HUGE);
3212} 3942}
3213 3943
3214void 3944void
3215ev_suspend (EV_P) EV_THROW 3945ev_suspend (EV_P) EV_NOEXCEPT
3216{ 3946{
3217 ev_now_update (EV_A); 3947 ev_now_update (EV_A);
3218} 3948}
3219 3949
3220void 3950void
3221ev_resume (EV_P) EV_THROW 3951ev_resume (EV_P) EV_NOEXCEPT
3222{ 3952{
3223 ev_tstamp mn_prev = mn_now; 3953 ev_tstamp mn_prev = mn_now;
3224 3954
3225 ev_now_update (EV_A); 3955 ev_now_update (EV_A);
3226 timers_reschedule (EV_A_ mn_now - mn_prev); 3956 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3243inline_size void 3973inline_size void
3244wlist_del (WL *head, WL elem) 3974wlist_del (WL *head, WL elem)
3245{ 3975{
3246 while (*head) 3976 while (*head)
3247 { 3977 {
3248 if (expect_true (*head == elem)) 3978 if (ecb_expect_true (*head == elem))
3249 { 3979 {
3250 *head = elem->next; 3980 *head = elem->next;
3251 break; 3981 break;
3252 } 3982 }
3253 3983
… …
3265 w->pending = 0; 3995 w->pending = 0;
3266 } 3996 }
3267} 3997}
3268 3998
3269int 3999int
3270ev_clear_pending (EV_P_ void *w) EV_THROW 4000ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3271{ 4001{
3272 W w_ = (W)w; 4002 W w_ = (W)w;
3273 int pending = w_->pending; 4003 int pending = w_->pending;
3274 4004
3275 if (expect_true (pending)) 4005 if (ecb_expect_true (pending))
3276 { 4006 {
3277 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4007 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3278 p->w = (W)&pending_w; 4008 p->w = (W)&pending_w;
3279 w_->pending = 0; 4009 w_->pending = 0;
3280 return p->events; 4010 return p->events;
… …
3307 w->active = 0; 4037 w->active = 0;
3308} 4038}
3309 4039
3310/*****************************************************************************/ 4040/*****************************************************************************/
3311 4041
3312void noinline 4042ecb_noinline
4043void
3313ev_io_start (EV_P_ ev_io *w) EV_THROW 4044ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3314{ 4045{
3315 int fd = w->fd; 4046 int fd = w->fd;
3316 4047
3317 if (expect_false (ev_is_active (w))) 4048 if (ecb_expect_false (ev_is_active (w)))
3318 return; 4049 return;
3319 4050
3320 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4051 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3321 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4052 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3322 4053
4054#if EV_VERIFY >= 2
4055 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4056#endif
3323 EV_FREQUENT_CHECK; 4057 EV_FREQUENT_CHECK;
3324 4058
3325 ev_start (EV_A_ (W)w, 1); 4059 ev_start (EV_A_ (W)w, 1);
3326 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4060 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3327 wlist_add (&anfds[fd].head, (WL)w); 4061 wlist_add (&anfds[fd].head, (WL)w);
3328 4062
3329 /* common bug, apparently */ 4063 /* common bug, apparently */
3330 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4064 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3331 4065
… …
3333 w->events &= ~EV__IOFDSET; 4067 w->events &= ~EV__IOFDSET;
3334 4068
3335 EV_FREQUENT_CHECK; 4069 EV_FREQUENT_CHECK;
3336} 4070}
3337 4071
3338void noinline 4072ecb_noinline
4073void
3339ev_io_stop (EV_P_ ev_io *w) EV_THROW 4074ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3340{ 4075{
3341 clear_pending (EV_A_ (W)w); 4076 clear_pending (EV_A_ (W)w);
3342 if (expect_false (!ev_is_active (w))) 4077 if (ecb_expect_false (!ev_is_active (w)))
3343 return; 4078 return;
3344 4079
3345 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4080 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3346 4081
4082#if EV_VERIFY >= 2
4083 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4084#endif
3347 EV_FREQUENT_CHECK; 4085 EV_FREQUENT_CHECK;
3348 4086
3349 wlist_del (&anfds[w->fd].head, (WL)w); 4087 wlist_del (&anfds[w->fd].head, (WL)w);
3350 ev_stop (EV_A_ (W)w); 4088 ev_stop (EV_A_ (W)w);
3351 4089
3352 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4090 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3353 4091
3354 EV_FREQUENT_CHECK; 4092 EV_FREQUENT_CHECK;
3355} 4093}
3356 4094
3357void noinline 4095ecb_noinline
4096void
3358ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4097ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3359{ 4098{
3360 if (expect_false (ev_is_active (w))) 4099 if (ecb_expect_false (ev_is_active (w)))
3361 return; 4100 return;
3362 4101
3363 ev_at (w) += mn_now; 4102 ev_at (w) += mn_now;
3364 4103
3365 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4104 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3366 4105
3367 EV_FREQUENT_CHECK; 4106 EV_FREQUENT_CHECK;
3368 4107
3369 ++timercnt; 4108 ++timercnt;
3370 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4109 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3371 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4110 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3372 ANHE_w (timers [ev_active (w)]) = (WT)w; 4111 ANHE_w (timers [ev_active (w)]) = (WT)w;
3373 ANHE_at_cache (timers [ev_active (w)]); 4112 ANHE_at_cache (timers [ev_active (w)]);
3374 upheap (timers, ev_active (w)); 4113 upheap (timers, ev_active (w));
3375 4114
3376 EV_FREQUENT_CHECK; 4115 EV_FREQUENT_CHECK;
3377 4116
3378 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4117 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3379} 4118}
3380 4119
3381void noinline 4120ecb_noinline
4121void
3382ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4122ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3383{ 4123{
3384 clear_pending (EV_A_ (W)w); 4124 clear_pending (EV_A_ (W)w);
3385 if (expect_false (!ev_is_active (w))) 4125 if (ecb_expect_false (!ev_is_active (w)))
3386 return; 4126 return;
3387 4127
3388 EV_FREQUENT_CHECK; 4128 EV_FREQUENT_CHECK;
3389 4129
3390 { 4130 {
… …
3392 4132
3393 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4133 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3394 4134
3395 --timercnt; 4135 --timercnt;
3396 4136
3397 if (expect_true (active < timercnt + HEAP0)) 4137 if (ecb_expect_true (active < timercnt + HEAP0))
3398 { 4138 {
3399 timers [active] = timers [timercnt + HEAP0]; 4139 timers [active] = timers [timercnt + HEAP0];
3400 adjustheap (timers, timercnt, active); 4140 adjustheap (timers, timercnt, active);
3401 } 4141 }
3402 } 4142 }
… …
3406 ev_stop (EV_A_ (W)w); 4146 ev_stop (EV_A_ (W)w);
3407 4147
3408 EV_FREQUENT_CHECK; 4148 EV_FREQUENT_CHECK;
3409} 4149}
3410 4150
3411void noinline 4151ecb_noinline
4152void
3412ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4153ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3413{ 4154{
3414 EV_FREQUENT_CHECK; 4155 EV_FREQUENT_CHECK;
3415 4156
3416 clear_pending (EV_A_ (W)w); 4157 clear_pending (EV_A_ (W)w);
3417 4158
… …
3434 4175
3435 EV_FREQUENT_CHECK; 4176 EV_FREQUENT_CHECK;
3436} 4177}
3437 4178
3438ev_tstamp 4179ev_tstamp
3439ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4180ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3440{ 4181{
3441 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4182 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3442} 4183}
3443 4184
3444#if EV_PERIODIC_ENABLE 4185#if EV_PERIODIC_ENABLE
3445void noinline 4186ecb_noinline
4187void
3446ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4188ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3447{ 4189{
3448 if (expect_false (ev_is_active (w))) 4190 if (ecb_expect_false (ev_is_active (w)))
3449 return; 4191 return;
3450 4192
3451 if (w->reschedule_cb) 4193 if (w->reschedule_cb)
3452 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4194 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3453 else if (w->interval) 4195 else if (w->interval)
… …
3460 4202
3461 EV_FREQUENT_CHECK; 4203 EV_FREQUENT_CHECK;
3462 4204
3463 ++periodiccnt; 4205 ++periodiccnt;
3464 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4206 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3465 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4207 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3466 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4208 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3467 ANHE_at_cache (periodics [ev_active (w)]); 4209 ANHE_at_cache (periodics [ev_active (w)]);
3468 upheap (periodics, ev_active (w)); 4210 upheap (periodics, ev_active (w));
3469 4211
3470 EV_FREQUENT_CHECK; 4212 EV_FREQUENT_CHECK;
3471 4213
3472 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4214 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3473} 4215}
3474 4216
3475void noinline 4217ecb_noinline
4218void
3476ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4219ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3477{ 4220{
3478 clear_pending (EV_A_ (W)w); 4221 clear_pending (EV_A_ (W)w);
3479 if (expect_false (!ev_is_active (w))) 4222 if (ecb_expect_false (!ev_is_active (w)))
3480 return; 4223 return;
3481 4224
3482 EV_FREQUENT_CHECK; 4225 EV_FREQUENT_CHECK;
3483 4226
3484 { 4227 {
… …
3486 4229
3487 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4230 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3488 4231
3489 --periodiccnt; 4232 --periodiccnt;
3490 4233
3491 if (expect_true (active < periodiccnt + HEAP0)) 4234 if (ecb_expect_true (active < periodiccnt + HEAP0))
3492 { 4235 {
3493 periodics [active] = periodics [periodiccnt + HEAP0]; 4236 periodics [active] = periodics [periodiccnt + HEAP0];
3494 adjustheap (periodics, periodiccnt, active); 4237 adjustheap (periodics, periodiccnt, active);
3495 } 4238 }
3496 } 4239 }
… …
3498 ev_stop (EV_A_ (W)w); 4241 ev_stop (EV_A_ (W)w);
3499 4242
3500 EV_FREQUENT_CHECK; 4243 EV_FREQUENT_CHECK;
3501} 4244}
3502 4245
3503void noinline 4246ecb_noinline
4247void
3504ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4248ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3505{ 4249{
3506 /* TODO: use adjustheap and recalculation */ 4250 /* TODO: use adjustheap and recalculation */
3507 ev_periodic_stop (EV_A_ w); 4251 ev_periodic_stop (EV_A_ w);
3508 ev_periodic_start (EV_A_ w); 4252 ev_periodic_start (EV_A_ w);
3509} 4253}
… …
3513# define SA_RESTART 0 4257# define SA_RESTART 0
3514#endif 4258#endif
3515 4259
3516#if EV_SIGNAL_ENABLE 4260#if EV_SIGNAL_ENABLE
3517 4261
3518void noinline 4262ecb_noinline
4263void
3519ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4264ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3520{ 4265{
3521 if (expect_false (ev_is_active (w))) 4266 if (ecb_expect_false (ev_is_active (w)))
3522 return; 4267 return;
3523 4268
3524 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4269 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3525 4270
3526#if EV_MULTIPLICITY 4271#if EV_MULTIPLICITY
3527 assert (("libev: a signal must not be attached to two different loops", 4272 assert (("libev: a signal must not be attached to two different loops",
3528 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4273 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3529 4274
3530 signals [w->signum - 1].loop = EV_A; 4275 signals [w->signum - 1].loop = EV_A;
4276 ECB_MEMORY_FENCE_RELEASE;
3531#endif 4277#endif
3532 4278
3533 EV_FREQUENT_CHECK; 4279 EV_FREQUENT_CHECK;
3534 4280
3535#if EV_USE_SIGNALFD 4281#if EV_USE_SIGNALFD
… …
3594 } 4340 }
3595 4341
3596 EV_FREQUENT_CHECK; 4342 EV_FREQUENT_CHECK;
3597} 4343}
3598 4344
3599void noinline 4345ecb_noinline
4346void
3600ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4347ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3601{ 4348{
3602 clear_pending (EV_A_ (W)w); 4349 clear_pending (EV_A_ (W)w);
3603 if (expect_false (!ev_is_active (w))) 4350 if (ecb_expect_false (!ev_is_active (w)))
3604 return; 4351 return;
3605 4352
3606 EV_FREQUENT_CHECK; 4353 EV_FREQUENT_CHECK;
3607 4354
3608 wlist_del (&signals [w->signum - 1].head, (WL)w); 4355 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3636#endif 4383#endif
3637 4384
3638#if EV_CHILD_ENABLE 4385#if EV_CHILD_ENABLE
3639 4386
3640void 4387void
3641ev_child_start (EV_P_ ev_child *w) EV_THROW 4388ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3642{ 4389{
3643#if EV_MULTIPLICITY 4390#if EV_MULTIPLICITY
3644 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4391 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3645#endif 4392#endif
3646 if (expect_false (ev_is_active (w))) 4393 if (ecb_expect_false (ev_is_active (w)))
3647 return; 4394 return;
3648 4395
3649 EV_FREQUENT_CHECK; 4396 EV_FREQUENT_CHECK;
3650 4397
3651 ev_start (EV_A_ (W)w, 1); 4398 ev_start (EV_A_ (W)w, 1);
… …
3653 4400
3654 EV_FREQUENT_CHECK; 4401 EV_FREQUENT_CHECK;
3655} 4402}
3656 4403
3657void 4404void
3658ev_child_stop (EV_P_ ev_child *w) EV_THROW 4405ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3659{ 4406{
3660 clear_pending (EV_A_ (W)w); 4407 clear_pending (EV_A_ (W)w);
3661 if (expect_false (!ev_is_active (w))) 4408 if (ecb_expect_false (!ev_is_active (w)))
3662 return; 4409 return;
3663 4410
3664 EV_FREQUENT_CHECK; 4411 EV_FREQUENT_CHECK;
3665 4412
3666 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4413 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3680 4427
3681#define DEF_STAT_INTERVAL 5.0074891 4428#define DEF_STAT_INTERVAL 5.0074891
3682#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4429#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3683#define MIN_STAT_INTERVAL 0.1074891 4430#define MIN_STAT_INTERVAL 0.1074891
3684 4431
3685static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4432ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3686 4433
3687#if EV_USE_INOTIFY 4434#if EV_USE_INOTIFY
3688 4435
3689/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4436/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3690# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4437# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3691 4438
3692static void noinline 4439ecb_noinline
4440static void
3693infy_add (EV_P_ ev_stat *w) 4441infy_add (EV_P_ ev_stat *w)
3694{ 4442{
3695 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); 4443 w->wd = inotify_add_watch (fs_fd, w->path,
4444 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4445 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4446 | IN_DONT_FOLLOW | IN_MASK_ADD);
3696 4447
3697 if (w->wd >= 0) 4448 if (w->wd >= 0)
3698 { 4449 {
3699 struct statfs sfs; 4450 struct statfs sfs;
3700 4451
… …
3704 4455
3705 if (!fs_2625) 4456 if (!fs_2625)
3706 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4457 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3707 else if (!statfs (w->path, &sfs) 4458 else if (!statfs (w->path, &sfs)
3708 && (sfs.f_type == 0x1373 /* devfs */ 4459 && (sfs.f_type == 0x1373 /* devfs */
4460 || sfs.f_type == 0x4006 /* fat */
4461 || sfs.f_type == 0x4d44 /* msdos */
3709 || sfs.f_type == 0xEF53 /* ext2/3 */ 4462 || sfs.f_type == 0xEF53 /* ext2/3 */
4463 || sfs.f_type == 0x72b6 /* jffs2 */
4464 || sfs.f_type == 0x858458f6 /* ramfs */
4465 || sfs.f_type == 0x5346544e /* ntfs */
3710 || sfs.f_type == 0x3153464a /* jfs */ 4466 || sfs.f_type == 0x3153464a /* jfs */
4467 || sfs.f_type == 0x9123683e /* btrfs */
3711 || sfs.f_type == 0x52654973 /* reiser3 */ 4468 || sfs.f_type == 0x52654973 /* reiser3 */
3712 || sfs.f_type == 0x01021994 /* tempfs */ 4469 || sfs.f_type == 0x01021994 /* tmpfs */
3713 || sfs.f_type == 0x58465342 /* xfs */)) 4470 || sfs.f_type == 0x58465342 /* xfs */))
3714 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4471 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3715 else 4472 else
3716 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4473 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3717 } 4474 }
… …
3752 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4509 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3753 ev_timer_again (EV_A_ &w->timer); 4510 ev_timer_again (EV_A_ &w->timer);
3754 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4511 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3755} 4512}
3756 4513
3757static void noinline 4514ecb_noinline
4515static void
3758infy_del (EV_P_ ev_stat *w) 4516infy_del (EV_P_ ev_stat *w)
3759{ 4517{
3760 int slot; 4518 int slot;
3761 int wd = w->wd; 4519 int wd = w->wd;
3762 4520
… …
3769 4527
3770 /* remove this watcher, if others are watching it, they will rearm */ 4528 /* remove this watcher, if others are watching it, they will rearm */
3771 inotify_rm_watch (fs_fd, wd); 4529 inotify_rm_watch (fs_fd, wd);
3772} 4530}
3773 4531
3774static void noinline 4532ecb_noinline
4533static void
3775infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4534infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3776{ 4535{
3777 if (slot < 0) 4536 if (slot < 0)
3778 /* overflow, need to check for all hash slots */ 4537 /* overflow, need to check for all hash slots */
3779 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4538 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3815 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4574 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3816 ofs += sizeof (struct inotify_event) + ev->len; 4575 ofs += sizeof (struct inotify_event) + ev->len;
3817 } 4576 }
3818} 4577}
3819 4578
3820inline_size void ecb_cold 4579inline_size ecb_cold
4580void
3821ev_check_2625 (EV_P) 4581ev_check_2625 (EV_P)
3822{ 4582{
3823 /* kernels < 2.6.25 are borked 4583 /* kernels < 2.6.25 are borked
3824 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4584 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3825 */ 4585 */
… …
3915#else 4675#else
3916# define EV_LSTAT(p,b) lstat (p, b) 4676# define EV_LSTAT(p,b) lstat (p, b)
3917#endif 4677#endif
3918 4678
3919void 4679void
3920ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4680ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3921{ 4681{
3922 if (lstat (w->path, &w->attr) < 0) 4682 if (lstat (w->path, &w->attr) < 0)
3923 w->attr.st_nlink = 0; 4683 w->attr.st_nlink = 0;
3924 else if (!w->attr.st_nlink) 4684 else if (!w->attr.st_nlink)
3925 w->attr.st_nlink = 1; 4685 w->attr.st_nlink = 1;
3926} 4686}
3927 4687
3928static void noinline 4688ecb_noinline
4689static void
3929stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4690stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3930{ 4691{
3931 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4692 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3932 4693
3933 ev_statdata prev = w->attr; 4694 ev_statdata prev = w->attr;
… …
3964 ev_feed_event (EV_A_ w, EV_STAT); 4725 ev_feed_event (EV_A_ w, EV_STAT);
3965 } 4726 }
3966} 4727}
3967 4728
3968void 4729void
3969ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4730ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3970{ 4731{
3971 if (expect_false (ev_is_active (w))) 4732 if (ecb_expect_false (ev_is_active (w)))
3972 return; 4733 return;
3973 4734
3974 ev_stat_stat (EV_A_ w); 4735 ev_stat_stat (EV_A_ w);
3975 4736
3976 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4737 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
3995 4756
3996 EV_FREQUENT_CHECK; 4757 EV_FREQUENT_CHECK;
3997} 4758}
3998 4759
3999void 4760void
4000ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4761ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4001{ 4762{
4002 clear_pending (EV_A_ (W)w); 4763 clear_pending (EV_A_ (W)w);
4003 if (expect_false (!ev_is_active (w))) 4764 if (ecb_expect_false (!ev_is_active (w)))
4004 return; 4765 return;
4005 4766
4006 EV_FREQUENT_CHECK; 4767 EV_FREQUENT_CHECK;
4007 4768
4008#if EV_USE_INOTIFY 4769#if EV_USE_INOTIFY
… …
4021} 4782}
4022#endif 4783#endif
4023 4784
4024#if EV_IDLE_ENABLE 4785#if EV_IDLE_ENABLE
4025void 4786void
4026ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4787ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4027{ 4788{
4028 if (expect_false (ev_is_active (w))) 4789 if (ecb_expect_false (ev_is_active (w)))
4029 return; 4790 return;
4030 4791
4031 pri_adjust (EV_A_ (W)w); 4792 pri_adjust (EV_A_ (W)w);
4032 4793
4033 EV_FREQUENT_CHECK; 4794 EV_FREQUENT_CHECK;
… …
4036 int active = ++idlecnt [ABSPRI (w)]; 4797 int active = ++idlecnt [ABSPRI (w)];
4037 4798
4038 ++idleall; 4799 ++idleall;
4039 ev_start (EV_A_ (W)w, active); 4800 ev_start (EV_A_ (W)w, active);
4040 4801
4041 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4802 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4042 idles [ABSPRI (w)][active - 1] = w; 4803 idles [ABSPRI (w)][active - 1] = w;
4043 } 4804 }
4044 4805
4045 EV_FREQUENT_CHECK; 4806 EV_FREQUENT_CHECK;
4046} 4807}
4047 4808
4048void 4809void
4049ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4810ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4050{ 4811{
4051 clear_pending (EV_A_ (W)w); 4812 clear_pending (EV_A_ (W)w);
4052 if (expect_false (!ev_is_active (w))) 4813 if (ecb_expect_false (!ev_is_active (w)))
4053 return; 4814 return;
4054 4815
4055 EV_FREQUENT_CHECK; 4816 EV_FREQUENT_CHECK;
4056 4817
4057 { 4818 {
… …
4068} 4829}
4069#endif 4830#endif
4070 4831
4071#if EV_PREPARE_ENABLE 4832#if EV_PREPARE_ENABLE
4072void 4833void
4073ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4834ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4074{ 4835{
4075 if (expect_false (ev_is_active (w))) 4836 if (ecb_expect_false (ev_is_active (w)))
4076 return; 4837 return;
4077 4838
4078 EV_FREQUENT_CHECK; 4839 EV_FREQUENT_CHECK;
4079 4840
4080 ev_start (EV_A_ (W)w, ++preparecnt); 4841 ev_start (EV_A_ (W)w, ++preparecnt);
4081 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4842 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4082 prepares [preparecnt - 1] = w; 4843 prepares [preparecnt - 1] = w;
4083 4844
4084 EV_FREQUENT_CHECK; 4845 EV_FREQUENT_CHECK;
4085} 4846}
4086 4847
4087void 4848void
4088ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4849ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4089{ 4850{
4090 clear_pending (EV_A_ (W)w); 4851 clear_pending (EV_A_ (W)w);
4091 if (expect_false (!ev_is_active (w))) 4852 if (ecb_expect_false (!ev_is_active (w)))
4092 return; 4853 return;
4093 4854
4094 EV_FREQUENT_CHECK; 4855 EV_FREQUENT_CHECK;
4095 4856
4096 { 4857 {
… …
4106} 4867}
4107#endif 4868#endif
4108 4869
4109#if EV_CHECK_ENABLE 4870#if EV_CHECK_ENABLE
4110void 4871void
4111ev_check_start (EV_P_ ev_check *w) EV_THROW 4872ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4112{ 4873{
4113 if (expect_false (ev_is_active (w))) 4874 if (ecb_expect_false (ev_is_active (w)))
4114 return; 4875 return;
4115 4876
4116 EV_FREQUENT_CHECK; 4877 EV_FREQUENT_CHECK;
4117 4878
4118 ev_start (EV_A_ (W)w, ++checkcnt); 4879 ev_start (EV_A_ (W)w, ++checkcnt);
4119 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4880 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4120 checks [checkcnt - 1] = w; 4881 checks [checkcnt - 1] = w;
4121 4882
4122 EV_FREQUENT_CHECK; 4883 EV_FREQUENT_CHECK;
4123} 4884}
4124 4885
4125void 4886void
4126ev_check_stop (EV_P_ ev_check *w) EV_THROW 4887ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4127{ 4888{
4128 clear_pending (EV_A_ (W)w); 4889 clear_pending (EV_A_ (W)w);
4129 if (expect_false (!ev_is_active (w))) 4890 if (ecb_expect_false (!ev_is_active (w)))
4130 return; 4891 return;
4131 4892
4132 EV_FREQUENT_CHECK; 4893 EV_FREQUENT_CHECK;
4133 4894
4134 { 4895 {
… …
4143 EV_FREQUENT_CHECK; 4904 EV_FREQUENT_CHECK;
4144} 4905}
4145#endif 4906#endif
4146 4907
4147#if EV_EMBED_ENABLE 4908#if EV_EMBED_ENABLE
4148void noinline 4909ecb_noinline
4910void
4149ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4911ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4150{ 4912{
4151 ev_run (w->other, EVRUN_NOWAIT); 4913 ev_run (w->other, EVRUN_NOWAIT);
4152} 4914}
4153 4915
4154static void 4916static void
… …
4202 ev_idle_stop (EV_A_ idle); 4964 ev_idle_stop (EV_A_ idle);
4203} 4965}
4204#endif 4966#endif
4205 4967
4206void 4968void
4207ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4969ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4208{ 4970{
4209 if (expect_false (ev_is_active (w))) 4971 if (ecb_expect_false (ev_is_active (w)))
4210 return; 4972 return;
4211 4973
4212 { 4974 {
4213 EV_P = w->other; 4975 EV_P = w->other;
4214 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4976 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4233 4995
4234 EV_FREQUENT_CHECK; 4996 EV_FREQUENT_CHECK;
4235} 4997}
4236 4998
4237void 4999void
4238ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5000ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4239{ 5001{
4240 clear_pending (EV_A_ (W)w); 5002 clear_pending (EV_A_ (W)w);
4241 if (expect_false (!ev_is_active (w))) 5003 if (ecb_expect_false (!ev_is_active (w)))
4242 return; 5004 return;
4243 5005
4244 EV_FREQUENT_CHECK; 5006 EV_FREQUENT_CHECK;
4245 5007
4246 ev_io_stop (EV_A_ &w->io); 5008 ev_io_stop (EV_A_ &w->io);
… …
4253} 5015}
4254#endif 5016#endif
4255 5017
4256#if EV_FORK_ENABLE 5018#if EV_FORK_ENABLE
4257void 5019void
4258ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5020ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4259{ 5021{
4260 if (expect_false (ev_is_active (w))) 5022 if (ecb_expect_false (ev_is_active (w)))
4261 return; 5023 return;
4262 5024
4263 EV_FREQUENT_CHECK; 5025 EV_FREQUENT_CHECK;
4264 5026
4265 ev_start (EV_A_ (W)w, ++forkcnt); 5027 ev_start (EV_A_ (W)w, ++forkcnt);
4266 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5028 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4267 forks [forkcnt - 1] = w; 5029 forks [forkcnt - 1] = w;
4268 5030
4269 EV_FREQUENT_CHECK; 5031 EV_FREQUENT_CHECK;
4270} 5032}
4271 5033
4272void 5034void
4273ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5035ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4274{ 5036{
4275 clear_pending (EV_A_ (W)w); 5037 clear_pending (EV_A_ (W)w);
4276 if (expect_false (!ev_is_active (w))) 5038 if (ecb_expect_false (!ev_is_active (w)))
4277 return; 5039 return;
4278 5040
4279 EV_FREQUENT_CHECK; 5041 EV_FREQUENT_CHECK;
4280 5042
4281 { 5043 {
… …
4291} 5053}
4292#endif 5054#endif
4293 5055
4294#if EV_CLEANUP_ENABLE 5056#if EV_CLEANUP_ENABLE
4295void 5057void
4296ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5058ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4297{ 5059{
4298 if (expect_false (ev_is_active (w))) 5060 if (ecb_expect_false (ev_is_active (w)))
4299 return; 5061 return;
4300 5062
4301 EV_FREQUENT_CHECK; 5063 EV_FREQUENT_CHECK;
4302 5064
4303 ev_start (EV_A_ (W)w, ++cleanupcnt); 5065 ev_start (EV_A_ (W)w, ++cleanupcnt);
4304 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5066 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4305 cleanups [cleanupcnt - 1] = w; 5067 cleanups [cleanupcnt - 1] = w;
4306 5068
4307 /* cleanup watchers should never keep a refcount on the loop */ 5069 /* cleanup watchers should never keep a refcount on the loop */
4308 ev_unref (EV_A); 5070 ev_unref (EV_A);
4309 EV_FREQUENT_CHECK; 5071 EV_FREQUENT_CHECK;
4310} 5072}
4311 5073
4312void 5074void
4313ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5075ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4314{ 5076{
4315 clear_pending (EV_A_ (W)w); 5077 clear_pending (EV_A_ (W)w);
4316 if (expect_false (!ev_is_active (w))) 5078 if (ecb_expect_false (!ev_is_active (w)))
4317 return; 5079 return;
4318 5080
4319 EV_FREQUENT_CHECK; 5081 EV_FREQUENT_CHECK;
4320 ev_ref (EV_A); 5082 ev_ref (EV_A);
4321 5083
… …
4332} 5094}
4333#endif 5095#endif
4334 5096
4335#if EV_ASYNC_ENABLE 5097#if EV_ASYNC_ENABLE
4336void 5098void
4337ev_async_start (EV_P_ ev_async *w) EV_THROW 5099ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4338{ 5100{
4339 if (expect_false (ev_is_active (w))) 5101 if (ecb_expect_false (ev_is_active (w)))
4340 return; 5102 return;
4341 5103
4342 w->sent = 0; 5104 w->sent = 0;
4343 5105
4344 evpipe_init (EV_A); 5106 evpipe_init (EV_A);
4345 5107
4346 EV_FREQUENT_CHECK; 5108 EV_FREQUENT_CHECK;
4347 5109
4348 ev_start (EV_A_ (W)w, ++asynccnt); 5110 ev_start (EV_A_ (W)w, ++asynccnt);
4349 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5111 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4350 asyncs [asynccnt - 1] = w; 5112 asyncs [asynccnt - 1] = w;
4351 5113
4352 EV_FREQUENT_CHECK; 5114 EV_FREQUENT_CHECK;
4353} 5115}
4354 5116
4355void 5117void
4356ev_async_stop (EV_P_ ev_async *w) EV_THROW 5118ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4357{ 5119{
4358 clear_pending (EV_A_ (W)w); 5120 clear_pending (EV_A_ (W)w);
4359 if (expect_false (!ev_is_active (w))) 5121 if (ecb_expect_false (!ev_is_active (w)))
4360 return; 5122 return;
4361 5123
4362 EV_FREQUENT_CHECK; 5124 EV_FREQUENT_CHECK;
4363 5125
4364 { 5126 {
… …
4372 5134
4373 EV_FREQUENT_CHECK; 5135 EV_FREQUENT_CHECK;
4374} 5136}
4375 5137
4376void 5138void
4377ev_async_send (EV_P_ ev_async *w) EV_THROW 5139ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4378{ 5140{
4379 w->sent = 1; 5141 w->sent = 1;
4380 evpipe_write (EV_A_ &async_pending); 5142 evpipe_write (EV_A_ &async_pending);
4381} 5143}
4382#endif 5144#endif
… …
4419 5181
4420 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5182 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4421} 5183}
4422 5184
4423void 5185void
4424ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5186ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4425{ 5187{
4426 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5188 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4427
4428 if (expect_false (!once))
4429 {
4430 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4431 return;
4432 }
4433 5189
4434 once->cb = cb; 5190 once->cb = cb;
4435 once->arg = arg; 5191 once->arg = arg;
4436 5192
4437 ev_init (&once->io, once_cb_io); 5193 ev_init (&once->io, once_cb_io);
… …
4450} 5206}
4451 5207
4452/*****************************************************************************/ 5208/*****************************************************************************/
4453 5209
4454#if EV_WALK_ENABLE 5210#if EV_WALK_ENABLE
4455void ecb_cold 5211ecb_cold
5212void
4456ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5213ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4457{ 5214{
4458 int i, j; 5215 int i, j;
4459 ev_watcher_list *wl, *wn; 5216 ev_watcher_list *wl, *wn;
4460 5217
4461 if (types & (EV_IO | EV_EMBED)) 5218 if (types & (EV_IO | EV_EMBED))

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