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Comparing libev/ev.c (file contents):
Revision 1.452 by root, Mon Feb 18 03:20:29 2013 UTC vs.
Revision 1.510 by root, Wed Aug 28 09:45:49 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 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
… …
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
360#endif 393#endif
361 394
362#ifdef ANDROID 395#ifdef __ANDROID__
363/* supposedly, android doesn't typedef fd_mask */ 396/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT 397# undef EV_USE_SELECT
365# define EV_USE_SELECT 0 398# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 399/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL 400# undef EV_USE_CLOCK_SYSCALL
… …
381# include <sys/syscall.h> 414# include <sys/syscall.h>
382# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
383# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
384# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
386# else 420# else
387# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
388# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
389# endif 423# endif
390#endif 424#endif
… …
408 442
409#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
410/* 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 */
411# if !defined _WIN32 && !defined __hpux 445# if !defined _WIN32 && !defined __hpux
412# 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
413# endif 472# endif
414#endif 473#endif
415 474
416#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
417# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
459 uint32_t ssi_signo; 518 uint32_t ssi_signo;
460 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
461}; 520};
462#endif 521#endif
463 522
464/**/ 523/*****************************************************************************/
465 524
466#if EV_VERIFY >= 3 525#if EV_VERIFY >= 3
467# define EV_FREQUENT_CHECK ev_verify (EV_A) 526# define EV_FREQUENT_CHECK ev_verify (EV_A)
468#else 527#else
469# define EV_FREQUENT_CHECK do { } while (0) 528# define EV_FREQUENT_CHECK do { } while (0)
… …
474 * This value is good at least till the year 4000. 533 * This value is good at least till the year 4000.
475 */ 534 */
476#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 535#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
477/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 536/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
478 537
479#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) */
480#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) */
481 540
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
482#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)
483#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
484 558
485/* 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 */
486/* ECB.H BEGIN */ 560/* ECB.H BEGIN */
487/* 561/*
488 * libecb - http://software.schmorp.de/pkg/libecb 562 * libecb - http://software.schmorp.de/pkg/libecb
489 * 563 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 564 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 565 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 566 * All rights reserved.
493 * 567 *
494 * 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-
495 * tion, are permitted provided that the following conditions are met: 569 * tion, are permitted provided that the following conditions are met:
… …
509 * 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;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 584 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 585 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * 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
513 * 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.
514 */ 599 */
515 600
516#ifndef ECB_H 601#ifndef ECB_H
517#define ECB_H 602#define ECB_H
518 603
519/* 16 bits major, 16 bits minor */ 604/* 16 bits major, 16 bits minor */
520#define ECB_VERSION 0x00010002 605#define ECB_VERSION 0x00010006
521 606
522#ifdef _WIN32 607#ifdef _WIN32
523 typedef signed char int8_t; 608 typedef signed char int8_t;
524 typedef unsigned char uint8_t; 609 typedef unsigned char uint8_t;
525 typedef signed short int16_t; 610 typedef signed short int16_t;
… …
542 typedef uint32_t uintptr_t; 627 typedef uint32_t uintptr_t;
543 typedef int32_t intptr_t; 628 typedef int32_t intptr_t;
544 #endif 629 #endif
545#else 630#else
546 #include <inttypes.h> 631 #include <inttypes.h>
547 #if UINTMAX_MAX > 0xffffffffU 632 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548 #define ECB_PTRSIZE 8 633 #define ECB_PTRSIZE 8
549 #else 634 #else
550 #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
551 #endif 648 #endif
552#endif 649#endif
553 650
554/* many compilers define _GNUC_ to some versions but then only implement 651/* many compilers define _GNUC_ to some versions but then only implement
555 * what their idiot authors think are the "more important" extensions, 652 * what their idiot authors think are the "more important" extensions,
556 * causing enormous grief in return for some better fake benchmark numbers. 653 * causing enormous grief in return for some better fake benchmark numbers.
557 * or so. 654 * or so.
558 * 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
559 * 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.
560 */ 657 */
561#ifndef ECB_GCC_VERSION
562 #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__
563 #define ECB_GCC_VERSION(major,minor) 0 659 #define ECB_GCC_VERSION(major,minor) 0
564 #else 660#else
565 #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)))
566 #endif 662#endif
567#endif
568 663
569#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)))
570#define ECB_C99 (__STDC_VERSION__ >= 199901L) 665
571#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
572#define ECB_CPP (__cplusplus+0) 678#define ECB_CPP (__cplusplus+0)
573#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)
574 694
575#if ECB_CPP 695#if ECB_CPP
576 #define ECB_EXTERN_C extern "C" 696 #define ECB_EXTERN_C extern "C"
577 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 697 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
578 #define ECB_EXTERN_C_END } 698 #define ECB_EXTERN_C_END }
… …
593 713
594#if ECB_NO_SMP 714#if ECB_NO_SMP
595 #define ECB_MEMORY_FENCE do { } while (0) 715 #define ECB_MEMORY_FENCE do { } while (0)
596#endif 716#endif
597 717
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
598#ifndef ECB_MEMORY_FENCE 727#ifndef ECB_MEMORY_FENCE
599 #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")
600 #if __i386 || __i386__ 730 #if __i386 || __i386__
601 #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")
602 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 732 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
603 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 733 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
604 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 734 #elif ECB_GCC_AMD64
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 735 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
606 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 736 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
607 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 737 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
608 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 738 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
609 #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 */
610 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 747 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
611 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 748 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
749 || defined __ARM_ARCH_6T2__
612 #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")
613 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 751 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
614 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 752 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 753 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616 #elif __sparc || __sparc__ 754 #elif __aarch64__
755 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
756 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
617 #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")
618 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 758 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 759 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620 #elif defined __s390__ || defined __s390x__ 760 #elif defined __s390__ || defined __s390x__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 761 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622 #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. */
623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 765 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
624 #elif defined __alpha__ 766 #elif defined __alpha__
625 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 767 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626 #elif defined __hppa__ 768 #elif defined __hppa__
627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 769 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 770 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif defined __ia64__ 771 #elif defined __ia64__
630 #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")
631 #endif 779 #endif
632 #endif 780 #endif
633#endif 781#endif
634 782
635#ifndef ECB_MEMORY_FENCE 783#ifndef ECB_MEMORY_FENCE
636 #if ECB_GCC_VERSION(4,7) 784 #if ECB_GCC_VERSION(4,7)
637 /* see comment below (stdatomic.h) about the C11 memory model. */ 785 /* see comment below (stdatomic.h) about the C11 memory model. */
638 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 786 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
787 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
788 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
789 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
639 790
640 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 791 #elif ECB_CLANG_EXTENSION(c_atomic)
641 * without risking compile time errors with other compilers. We *could*
642 * define our own ecb_clang_has_feature, but I just can't be bothered to work
643 * around this shit time and again.
644 * #elif defined __clang && __has_feature (cxx_atomic)
645 * // see comment below (stdatomic.h) about the C11 memory model. 792 /* see comment below (stdatomic.h) about the C11 memory model. */
646 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 793 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647 */ 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)
648 797
649 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 798 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
650 #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()
651 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 806 #elif _MSC_VER >= 1400 /* VC++ 2005 */
652 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 807 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
653 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 808 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
654 #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 */
655 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 810 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
656 #elif defined _WIN32 811 #elif defined _WIN32
657 #include <WinNT.h> 812 #include <WinNT.h>
658 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 813 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
659 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 814 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
660 #include <mbarrier.h> 815 #include <mbarrier.h>
661 #define ECB_MEMORY_FENCE __machine_rw_barrier () 816 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
662 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 817 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
663 #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 ()
664 #elif __xlC__ 820 #elif __xlC__
665 #define ECB_MEMORY_FENCE __sync () 821 #define ECB_MEMORY_FENCE __sync ()
666 #endif 822 #endif
667#endif 823#endif
668 824
669#ifndef ECB_MEMORY_FENCE 825#ifndef ECB_MEMORY_FENCE
670 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 826 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
671 /* 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, */
672 /* not just C11 atomics and atomic accesses */ 828 /* not just C11 atomics and atomic accesses */
673 #include <stdatomic.h> 829 #include <stdatomic.h>
674 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
675 /* any fence other than seq_cst, which isn't very efficient for us. */
676 /* Why that is, we don't know - either the C11 memory model is quite useless */
677 /* for most usages, or gcc and clang have a bug */
678 /* I *currently* lean towards the latter, and inefficiently implement */
679 /* all three of ecb's fences as a seq_cst fence */
680 #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)
681 #endif 833 #endif
682#endif 834#endif
683 835
684#ifndef ECB_MEMORY_FENCE 836#ifndef ECB_MEMORY_FENCE
685 #if !ECB_AVOID_PTHREADS 837 #if !ECB_AVOID_PTHREADS
… …
705 857
706#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 858#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
707 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 859 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
708#endif 860#endif
709 861
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
710/*****************************************************************************/ 866/*****************************************************************************/
711 867
712#if __cplusplus 868#if ECB_CPP
713 #define ecb_inline static inline 869 #define ecb_inline static inline
714#elif ECB_GCC_VERSION(2,5) 870#elif ECB_GCC_VERSION(2,5)
715 #define ecb_inline static __inline__ 871 #define ecb_inline static __inline__
716#elif ECB_C99 872#elif ECB_C99
717 #define ecb_inline static inline 873 #define ecb_inline static inline
… …
731 887
732#define ECB_CONCAT_(a, b) a ## b 888#define ECB_CONCAT_(a, b) a ## b
733#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 889#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
734#define ECB_STRINGIFY_(a) # a 890#define ECB_STRINGIFY_(a) # a
735#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))
736 893
737#define ecb_function_ ecb_inline 894#define ecb_function_ ecb_inline
738 895
739#if ECB_GCC_VERSION(3,1) 896#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
740 #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)
741 #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)
742 #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)
743 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 919 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
744#else 920#else
745 #define ecb_attribute(attrlist)
746 #define ecb_is_constant(expr) 0
747 #define ecb_expect(expr,value) (expr)
748 #define ecb_prefetch(addr,rw,locality) 921 #define ecb_prefetch(addr,rw,locality)
749#endif 922#endif
750 923
751/* no emulation for ecb_decltype */ 924/* no emulation for ecb_decltype */
752#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; };
753 #define ecb_decltype(x) __decltype(x) 928 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
754#elif ECB_GCC_VERSION(3,0) 929#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
755 #define ecb_decltype(x) __typeof(x) 930 #define ecb_decltype(x) __typeof__ (x)
756#endif 931#endif
757 932
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
758#define ecb_noinline ecb_attribute ((__noinline__)) 950 #define ecb_noinline ecb_attribute ((__noinline__))
951#endif
952
759#define ecb_unused ecb_attribute ((__unused__)) 953#define ecb_unused ecb_attribute ((__unused__))
760#define ecb_const ecb_attribute ((__const__)) 954#define ecb_const ecb_attribute ((__const__))
761#define ecb_pure ecb_attribute ((__pure__)) 955#define ecb_pure ecb_attribute ((__pure__))
762 956
763#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 */
764 #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)
765#else 965#else
766 #define ecb_noreturn ecb_attribute ((__noreturn__)) 966 #define ecb_noreturn ecb_attribute ((__noreturn__))
767#endif 967#endif
768 968
769#if ECB_GCC_VERSION(4,3) 969#if ECB_GCC_VERSION(4,3)
… …
784/* for compatibility to the rest of the world */ 984/* for compatibility to the rest of the world */
785#define ecb_likely(expr) ecb_expect_true (expr) 985#define ecb_likely(expr) ecb_expect_true (expr)
786#define ecb_unlikely(expr) ecb_expect_false (expr) 986#define ecb_unlikely(expr) ecb_expect_false (expr)
787 987
788/* count trailing zero bits and count # of one bits */ 988/* count trailing zero bits and count # of one bits */
789#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))
790 /* 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 */
791 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 994 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
792 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 995 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
793 #define ecb_ctz32(x) __builtin_ctz (x) 996 #define ecb_ctz32(x) __builtin_ctz (x)
794 #define ecb_ctz64(x) __builtin_ctzll (x) 997 #define ecb_ctz64(x) __builtin_ctzll (x)
795 #define ecb_popcount32(x) __builtin_popcount (x) 998 #define ecb_popcount32(x) __builtin_popcount (x)
796 /* no popcountll */ 999 /* no popcountll */
797#else 1000#else
798 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1001 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
799 ecb_function_ int 1002 ecb_function_ ecb_const int
800 ecb_ctz32 (uint32_t x) 1003 ecb_ctz32 (uint32_t x)
801 { 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
802 int r = 0; 1010 int r = 0;
803 1011
804 x &= ~x + 1; /* this isolates the lowest bit */ 1012 x &= ~x + 1; /* this isolates the lowest bit */
805 1013
806#if ECB_branchless_on_i386 1014#if ECB_branchless_on_i386
… …
816 if (x & 0xff00ff00) r += 8; 1024 if (x & 0xff00ff00) r += 8;
817 if (x & 0xffff0000) r += 16; 1025 if (x & 0xffff0000) r += 16;
818#endif 1026#endif
819 1027
820 return r; 1028 return r;
1029#endif
821 } 1030 }
822 1031
823 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1032 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
824 ecb_function_ int 1033 ecb_function_ ecb_const int
825 ecb_ctz64 (uint64_t x) 1034 ecb_ctz64 (uint64_t x)
826 { 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
827 int shift = x & 0xffffffffU ? 0 : 32; 1041 int shift = x & 0xffffffff ? 0 : 32;
828 return ecb_ctz32 (x >> shift) + shift; 1042 return ecb_ctz32 (x >> shift) + shift;
1043#endif
829 } 1044 }
830 1045
831 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1046 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
832 ecb_function_ int 1047 ecb_function_ ecb_const int
833 ecb_popcount32 (uint32_t x) 1048 ecb_popcount32 (uint32_t x)
834 { 1049 {
835 x -= (x >> 1) & 0x55555555; 1050 x -= (x >> 1) & 0x55555555;
836 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1051 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
837 x = ((x >> 4) + x) & 0x0f0f0f0f; 1052 x = ((x >> 4) + x) & 0x0f0f0f0f;
838 x *= 0x01010101; 1053 x *= 0x01010101;
839 1054
840 return x >> 24; 1055 return x >> 24;
841 } 1056 }
842 1057
843 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1058 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
844 ecb_function_ int ecb_ld32 (uint32_t x) 1059 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
845 { 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
846 int r = 0; 1066 int r = 0;
847 1067
848 if (x >> 16) { x >>= 16; r += 16; } 1068 if (x >> 16) { x >>= 16; r += 16; }
849 if (x >> 8) { x >>= 8; r += 8; } 1069 if (x >> 8) { x >>= 8; r += 8; }
850 if (x >> 4) { x >>= 4; r += 4; } 1070 if (x >> 4) { x >>= 4; r += 4; }
851 if (x >> 2) { x >>= 2; r += 2; } 1071 if (x >> 2) { x >>= 2; r += 2; }
852 if (x >> 1) { r += 1; } 1072 if (x >> 1) { r += 1; }
853 1073
854 return r; 1074 return r;
1075#endif
855 } 1076 }
856 1077
857 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1078 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
858 ecb_function_ int ecb_ld64 (uint64_t x) 1079 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
859 { 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
860 int r = 0; 1086 int r = 0;
861 1087
862 if (x >> 32) { x >>= 32; r += 32; } 1088 if (x >> 32) { x >>= 32; r += 32; }
863 1089
864 return r + ecb_ld32 (x); 1090 return r + ecb_ld32 (x);
1091#endif
865 } 1092 }
866#endif 1093#endif
867 1094
868ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1095ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
869ecb_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)); }
870ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1097ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
871ecb_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)); }
872 1099
873ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1100ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
874ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1101ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
875{ 1102{
876 return ( (x * 0x0802U & 0x22110U) 1103 return ( (x * 0x0802U & 0x22110U)
877 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1104 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878} 1105}
879 1106
880ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1107ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
881ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1108ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
882{ 1109{
883 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1110 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1111 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1112 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886 x = ( x >> 8 ) | ( x << 8); 1113 x = ( x >> 8 ) | ( x << 8);
887 1114
888 return x; 1115 return x;
889} 1116}
890 1117
891ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1118ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
892ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1119ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
893{ 1120{
894 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1121 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1122 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1123 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1124 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
900 return x; 1127 return x;
901} 1128}
902 1129
903/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1130/* popcount64 is only available on 64 bit cpus as gcc builtin */
904/* so for this version we are lazy */ 1131/* so for this version we are lazy */
905ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1132ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
906ecb_function_ int 1133ecb_function_ ecb_const int
907ecb_popcount64 (uint64_t x) 1134ecb_popcount64 (uint64_t x)
908{ 1135{
909 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1136 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
910} 1137}
911 1138
912ecb_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);
913ecb_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);
914ecb_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);
915ecb_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);
916ecb_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);
917ecb_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);
918ecb_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);
919ecb_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);
920 1147
921ecb_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); }
922ecb_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); }
923ecb_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); }
924ecb_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); }
925ecb_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); }
926ecb_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); }
927ecb_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); }
928ecb_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); }
929 1156
930#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
931 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1161 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1162 #endif
932 #define ecb_bswap32(x) __builtin_bswap32 (x) 1163 #define ecb_bswap32(x) __builtin_bswap32 (x)
933 #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)))
934#else 1170#else
935 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1171 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
936 ecb_function_ uint16_t 1172 ecb_function_ ecb_const uint16_t
937 ecb_bswap16 (uint16_t x) 1173 ecb_bswap16 (uint16_t x)
938 { 1174 {
939 return ecb_rotl16 (x, 8); 1175 return ecb_rotl16 (x, 8);
940 } 1176 }
941 1177
942 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1178 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
943 ecb_function_ uint32_t 1179 ecb_function_ ecb_const uint32_t
944 ecb_bswap32 (uint32_t x) 1180 ecb_bswap32 (uint32_t x)
945 { 1181 {
946 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1182 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
947 } 1183 }
948 1184
949 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1185 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
950 ecb_function_ uint64_t 1186 ecb_function_ ecb_const uint64_t
951 ecb_bswap64 (uint64_t x) 1187 ecb_bswap64 (uint64_t x)
952 { 1188 {
953 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1189 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
954 } 1190 }
955#endif 1191#endif
956 1192
957#if ECB_GCC_VERSION(4,5) 1193#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
958 #define ecb_unreachable() __builtin_unreachable () 1194 #define ecb_unreachable() __builtin_unreachable ()
959#else 1195#else
960 /* 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 :/ */
961 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1197 ecb_inline ecb_noreturn void ecb_unreachable (void);
962 ecb_inline void ecb_unreachable (void) { } 1198 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
963#endif 1199#endif
964 1200
965/* try to tell the compiler that some condition is definitely true */ 1201/* try to tell the compiler that some condition is definitely true */
966#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1202#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
967 1203
968ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1204ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
969ecb_inline unsigned char 1205ecb_inline ecb_const uint32_t
970ecb_byteorder_helper (void) 1206ecb_byteorder_helper (void)
971{ 1207{
972 /* the union code still generates code under pressure in gcc, */ 1208 /* the union code still generates code under pressure in gcc, */
973 /* but less than using pointers, and always seems to */ 1209 /* but less than using pointers, and always seems to */
974 /* successfully return a constant. */ 1210 /* successfully return a constant. */
975 /* the reason why we have this horrible preprocessor mess */ 1211 /* the reason why we have this horrible preprocessor mess */
976 /* is to avoid it in all cases, at least on common architectures */ 1212 /* is to avoid it in all cases, at least on common architectures */
977 /* or when using a recent enough gcc version (>= 4.6) */ 1213 /* or when using a recent enough gcc version (>= 4.6) */
978#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979 return 0x44;
980#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 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
981 return 0x44; 1217 return 0x44332211;
982#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1218#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1219 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1220 #define ECB_BIG_ENDIAN 1
983 return 0x11; 1221 return 0x11223344;
984#else 1222#else
985 union 1223 union
986 { 1224 {
1225 uint8_t c[4];
987 uint32_t i; 1226 uint32_t u;
988 uint8_t c;
989 } u = { 0x11223344 }; 1227 } u = { 0x11, 0x22, 0x33, 0x44 };
990 return u.c; 1228 return u.u;
991#endif 1229#endif
992} 1230}
993 1231
994ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1232ecb_inline ecb_const ecb_bool ecb_big_endian (void);
995ecb_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; }
996ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1234ecb_inline ecb_const ecb_bool ecb_little_endian (void);
997ecb_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; }
998 1236
999#if ECB_GCC_VERSION(3,0) || ECB_C99 1237#if ECB_GCC_VERSION(3,0) || ECB_C99
1000 #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))
1001#else 1239#else
1002 #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)))
1003#endif 1241#endif
1004 1242
1005#if __cplusplus 1243#if ECB_CPP
1006 template<typename T> 1244 template<typename T>
1007 static inline T ecb_div_rd (T val, T div) 1245 static inline T ecb_div_rd (T val, T div)
1008 { 1246 {
1009 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1247 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010 } 1248 }
… …
1027 } 1265 }
1028#else 1266#else
1029 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1267 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1030#endif 1268#endif
1031 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
1032/*******************************************************************************/ 1366/*******************************************************************************/
1033/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1367/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034 1368
1035/* basically, everything uses "ieee pure-endian" floating point numbers */ 1369/* basically, everything uses "ieee pure-endian" floating point numbers */
1036/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1370/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037#if 0 \ 1371#if 0 \
1038 || __i386 || __i386__ \ 1372 || __i386 || __i386__ \
1039 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1373 || ECB_GCC_AMD64 \
1040 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1374 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041 || defined __arm__ && defined __ARM_EABI__ \
1042 || defined __s390__ || defined __s390x__ \ 1375 || defined __s390__ || defined __s390x__ \
1043 || defined __mips__ \ 1376 || defined __mips__ \
1044 || defined __alpha__ \ 1377 || defined __alpha__ \
1045 || defined __hppa__ \ 1378 || defined __hppa__ \
1046 || defined __ia64__ \ 1379 || defined __ia64__ \
1380 || defined __m68k__ \
1381 || defined __m88k__ \
1382 || defined __sh__ \
1047 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 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__
1048 #define ECB_STDFP 1 1386 #define ECB_STDFP 1
1049 #include <string.h> /* for memcpy */ 1387 #include <string.h> /* for memcpy */
1050#else 1388#else
1051 #define ECB_STDFP 0 1389 #define ECB_STDFP 0
1052 #include <math.h> /* for frexp*, ldexp* */
1053#endif 1390#endif
1054 1391
1055#ifndef ECB_NO_LIBM 1392#ifndef ECB_NO_LIBM
1056 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
1057 /* convert a float to ieee single/binary32 */ 1417 /* convert a float to ieee single/binary32 */
1058 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1418 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1059 ecb_function_ uint32_t 1419 ecb_function_ ecb_const uint32_t
1060 ecb_float_to_binary32 (float x) 1420 ecb_float_to_binary32 (float x)
1061 { 1421 {
1062 uint32_t r; 1422 uint32_t r;
1063 1423
1064 #if ECB_STDFP 1424 #if ECB_STDFP
… …
1071 if (x == 0e0f ) return 0x00000000U; 1431 if (x == 0e0f ) return 0x00000000U;
1072 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1432 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1433 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074 if (x != x ) return 0x7fbfffffU; 1434 if (x != x ) return 0x7fbfffffU;
1075 1435
1076 m = frexpf (x, &e) * 0x1000000U; 1436 m = ecb_frexpf (x, &e) * 0x1000000U;
1077 1437
1078 r = m & 0x80000000U; 1438 r = m & 0x80000000U;
1079 1439
1080 if (r) 1440 if (r)
1081 m = -m; 1441 m = -m;
… …
1093 1453
1094 return r; 1454 return r;
1095 } 1455 }
1096 1456
1097 /* converts an ieee single/binary32 to a float */ 1457 /* converts an ieee single/binary32 to a float */
1098 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1458 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1099 ecb_function_ float 1459 ecb_function_ ecb_const float
1100 ecb_binary32_to_float (uint32_t x) 1460 ecb_binary32_to_float (uint32_t x)
1101 { 1461 {
1102 float r; 1462 float r;
1103 1463
1104 #if ECB_STDFP 1464 #if ECB_STDFP
… …
1114 x |= 0x800000U; 1474 x |= 0x800000U;
1115 else 1475 else
1116 e = 1; 1476 e = 1;
1117 1477
1118 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1478 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1479 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1120 1480
1121 r = neg ? -r : r; 1481 r = neg ? -r : r;
1122 #endif 1482 #endif
1123 1483
1124 return r; 1484 return r;
1125 } 1485 }
1126 1486
1127 /* convert a double to ieee double/binary64 */ 1487 /* convert a double to ieee double/binary64 */
1128 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1488 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1129 ecb_function_ uint64_t 1489 ecb_function_ ecb_const uint64_t
1130 ecb_double_to_binary64 (double x) 1490 ecb_double_to_binary64 (double x)
1131 { 1491 {
1132 uint64_t r; 1492 uint64_t r;
1133 1493
1134 #if ECB_STDFP 1494 #if ECB_STDFP
… …
1163 1523
1164 return r; 1524 return r;
1165 } 1525 }
1166 1526
1167 /* converts an ieee double/binary64 to a double */ 1527 /* converts an ieee double/binary64 to a double */
1168 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1528 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1169 ecb_function_ double 1529 ecb_function_ ecb_const double
1170 ecb_binary64_to_double (uint64_t x) 1530 ecb_binary64_to_double (uint64_t x)
1171 { 1531 {
1172 double r; 1532 double r;
1173 1533
1174 #if ECB_STDFP 1534 #if ECB_STDFP
… …
1192 #endif 1552 #endif
1193 1553
1194 return r; 1554 return r;
1195 } 1555 }
1196 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
1197#endif 1573#endif
1198 1574
1199#endif 1575#endif
1200 1576
1201/* ECB.H END */ 1577/* ECB.H END */
1202 1578
1203#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1579#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1204/* 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
1205 * 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
1206 * 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
1207 * libev, in which cases the memory fences become nops. 1583 * libev, in which cases the memory fences become nops.
1208 * alternatively, you can remove this #error and link against libpthread, 1584 * alternatively, you can remove this #error and link against libpthread,
1209 * which will then provide the memory fences. 1585 * which will then provide the memory fences.
1210 */ 1586 */
1211# error "memory fences not defined for your architecture, please report" 1587# error "memory fences not defined for your architecture, please report"
… …
1215# define ECB_MEMORY_FENCE do { } while (0) 1591# define ECB_MEMORY_FENCE do { } while (0)
1216# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1592# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1217# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1593# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1218#endif 1594#endif
1219 1595
1220#define expect_false(cond) ecb_expect_false (cond)
1221#define expect_true(cond) ecb_expect_true (cond)
1222#define noinline ecb_noinline
1223
1224#define inline_size ecb_inline 1596#define inline_size ecb_inline
1225 1597
1226#if EV_FEATURE_CODE 1598#if EV_FEATURE_CODE
1227# define inline_speed ecb_inline 1599# define inline_speed ecb_inline
1228#else 1600#else
1229# define inline_speed static noinline 1601# define inline_speed ecb_noinline static
1230#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/*****************************************************************************/
1231 1669
1232#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1670#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1233 1671
1234#if EV_MINPRI == EV_MAXPRI 1672#if EV_MINPRI == EV_MAXPRI
1235# define ABSPRI(w) (((W)w), 0) 1673# define ABSPRI(w) (((W)w), 0)
1236#else 1674#else
1237# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1675# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1238#endif 1676#endif
1239 1677
1240#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1678#define EMPTY /* required for microsofts broken pseudo-c compiler */
1241#define EMPTY2(a,b) /* used to suppress some warnings */
1242 1679
1243typedef ev_watcher *W; 1680typedef ev_watcher *W;
1244typedef ev_watcher_list *WL; 1681typedef ev_watcher_list *WL;
1245typedef ev_watcher_time *WT; 1682typedef ev_watcher_time *WT;
1246 1683
… …
1271# include "ev_win32.c" 1708# include "ev_win32.c"
1272#endif 1709#endif
1273 1710
1274/*****************************************************************************/ 1711/*****************************************************************************/
1275 1712
1713#if EV_USE_LINUXAIO
1714# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1715#endif
1716
1276/* define a suitable floor function (only used by periodics atm) */ 1717/* define a suitable floor function (only used by periodics atm) */
1277 1718
1278#if EV_USE_FLOOR 1719#if EV_USE_FLOOR
1279# include <math.h> 1720# include <math.h>
1280# define ev_floor(v) floor (v) 1721# define ev_floor(v) floor (v)
1281#else 1722#else
1282 1723
1283#include <float.h> 1724#include <float.h>
1284 1725
1285/* 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
1286static ev_tstamp noinline 1728static ev_tstamp
1287ev_floor (ev_tstamp v) 1729ev_floor (ev_tstamp v)
1288{ 1730{
1289 /* the choice of shift factor is not terribly important */ 1731 /* the choice of shift factor is not terribly important */
1290#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1732#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1291 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1733 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1292#else 1734#else
1293 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1735 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1294#endif 1736#endif
1295 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
1296 /* argument too large for an unsigned long? */ 1746 /* argument too large for an unsigned long? then reduce it */
1297 if (expect_false (v >= shift)) 1747 if (ecb_expect_false (v >= shift))
1298 { 1748 {
1299 ev_tstamp f; 1749 ev_tstamp f;
1300 1750
1301 if (v == v - 1.) 1751 if (v == v - 1.)
1302 return v; /* very large number */ 1752 return v; /* very large numbers are assumed to be integer */
1303 1753
1304 f = shift * ev_floor (v * (1. / shift)); 1754 f = shift * ev_floor (v * (1. / shift));
1305 return f + ev_floor (v - f); 1755 return f + ev_floor (v - f);
1306 } 1756 }
1307 1757
1308 /* special treatment for negative args? */
1309 if (expect_false (v < 0.))
1310 {
1311 ev_tstamp f = -ev_floor (-v);
1312
1313 return f - (f == v ? 0 : 1);
1314 }
1315
1316 /* fits into an unsigned long */ 1758 /* fits into an unsigned long */
1317 return (unsigned long)v; 1759 return (unsigned long)v;
1318} 1760}
1319 1761
1320#endif 1762#endif
… …
1323 1765
1324#ifdef __linux 1766#ifdef __linux
1325# include <sys/utsname.h> 1767# include <sys/utsname.h>
1326#endif 1768#endif
1327 1769
1328static unsigned int noinline ecb_cold 1770ecb_noinline ecb_cold
1771static unsigned int
1329ev_linux_version (void) 1772ev_linux_version (void)
1330{ 1773{
1331#ifdef __linux 1774#ifdef __linux
1332 unsigned int v = 0; 1775 unsigned int v = 0;
1333 struct utsname buf; 1776 struct utsname buf;
… …
1362} 1805}
1363 1806
1364/*****************************************************************************/ 1807/*****************************************************************************/
1365 1808
1366#if EV_AVOID_STDIO 1809#if EV_AVOID_STDIO
1367static void noinline ecb_cold 1810ecb_noinline ecb_cold
1811static void
1368ev_printerr (const char *msg) 1812ev_printerr (const char *msg)
1369{ 1813{
1370 write (STDERR_FILENO, msg, strlen (msg)); 1814 write (STDERR_FILENO, msg, strlen (msg));
1371} 1815}
1372#endif 1816#endif
1373 1817
1374static void (*syserr_cb)(const char *msg) EV_THROW; 1818static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1375 1819
1376void ecb_cold 1820ecb_cold
1821void
1377ev_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
1378{ 1823{
1379 syserr_cb = cb; 1824 syserr_cb = cb;
1380} 1825}
1381 1826
1382static void noinline ecb_cold 1827ecb_noinline ecb_cold
1828static void
1383ev_syserr (const char *msg) 1829ev_syserr (const char *msg)
1384{ 1830{
1385 if (!msg) 1831 if (!msg)
1386 msg = "(libev) system error"; 1832 msg = "(libev) system error";
1387 1833
… …
1400 abort (); 1846 abort ();
1401 } 1847 }
1402} 1848}
1403 1849
1404static void * 1850static void *
1405ev_realloc_emul (void *ptr, long size) EV_THROW 1851ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1406{ 1852{
1407 /* some systems, notably openbsd and darwin, fail to properly 1853 /* some systems, notably openbsd and darwin, fail to properly
1408 * 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
1409 * the single unix specification, so work around them here. 1855 * the single unix specification, so work around them here.
1410 * recently, also (at least) fedora and debian started breaking it, 1856 * recently, also (at least) fedora and debian started breaking it,
… …
1416 1862
1417 free (ptr); 1863 free (ptr);
1418 return 0; 1864 return 0;
1419} 1865}
1420 1866
1421static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1867static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1422 1868
1423void ecb_cold 1869ecb_cold
1870void
1424ev_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
1425{ 1872{
1426 alloc = cb; 1873 alloc = cb;
1427} 1874}
1428 1875
1429inline_speed void * 1876inline_speed void *
… …
1456typedef struct 1903typedef struct
1457{ 1904{
1458 WL head; 1905 WL head;
1459 unsigned char events; /* the events watched for */ 1906 unsigned char events; /* the events watched for */
1460 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) */
1461 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 */
1462 unsigned char unused; 1909 unsigned char eflags; /* flags field for use by backends */
1463#if EV_USE_EPOLL 1910#if EV_USE_EPOLL
1464 unsigned int egen; /* generation counter to counter epoll bugs */ 1911 unsigned int egen; /* generation counter to counter epoll bugs */
1465#endif 1912#endif
1466#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1913#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1467 SOCKET handle; 1914 SOCKET handle;
… …
1521 static struct ev_loop default_loop_struct; 1968 static struct ev_loop default_loop_struct;
1522 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 */
1523 1970
1524#else 1971#else
1525 1972
1526 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 */
1527 #define VAR(name,decl) static decl; 1974 #define VAR(name,decl) static decl;
1528 #include "ev_vars.h" 1975 #include "ev_vars.h"
1529 #undef VAR 1976 #undef VAR
1530 1977
1531 static int ev_default_loop_ptr; 1978 static int ev_default_loop_ptr;
1532 1979
1533#endif 1980#endif
1534 1981
1535#if EV_FEATURE_API 1982#if EV_FEATURE_API
1536# 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)
1537# 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)
1538# define EV_INVOKE_PENDING invoke_cb (EV_A) 1985# define EV_INVOKE_PENDING invoke_cb (EV_A)
1539#else 1986#else
1540# define EV_RELEASE_CB (void)0 1987# define EV_RELEASE_CB (void)0
1541# define EV_ACQUIRE_CB (void)0 1988# define EV_ACQUIRE_CB (void)0
1542# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1989# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1546 1993
1547/*****************************************************************************/ 1994/*****************************************************************************/
1548 1995
1549#ifndef EV_HAVE_EV_TIME 1996#ifndef EV_HAVE_EV_TIME
1550ev_tstamp 1997ev_tstamp
1551ev_time (void) EV_THROW 1998ev_time (void) EV_NOEXCEPT
1552{ 1999{
1553#if EV_USE_REALTIME 2000#if EV_USE_REALTIME
1554 if (expect_true (have_realtime)) 2001 if (ecb_expect_true (have_realtime))
1555 { 2002 {
1556 struct timespec ts; 2003 struct timespec ts;
1557 clock_gettime (CLOCK_REALTIME, &ts); 2004 clock_gettime (CLOCK_REALTIME, &ts);
1558 return ts.tv_sec + ts.tv_nsec * 1e-9; 2005 return EV_TS_GET (ts);
1559 } 2006 }
1560#endif 2007#endif
1561 2008
2009 {
1562 struct timeval tv; 2010 struct timeval tv;
1563 gettimeofday (&tv, 0); 2011 gettimeofday (&tv, 0);
1564 return tv.tv_sec + tv.tv_usec * 1e-6; 2012 return EV_TV_GET (tv);
2013 }
1565} 2014}
1566#endif 2015#endif
1567 2016
1568inline_size ev_tstamp 2017inline_size ev_tstamp
1569get_clock (void) 2018get_clock (void)
1570{ 2019{
1571#if EV_USE_MONOTONIC 2020#if EV_USE_MONOTONIC
1572 if (expect_true (have_monotonic)) 2021 if (ecb_expect_true (have_monotonic))
1573 { 2022 {
1574 struct timespec ts; 2023 struct timespec ts;
1575 clock_gettime (CLOCK_MONOTONIC, &ts); 2024 clock_gettime (CLOCK_MONOTONIC, &ts);
1576 return ts.tv_sec + ts.tv_nsec * 1e-9; 2025 return EV_TS_GET (ts);
1577 } 2026 }
1578#endif 2027#endif
1579 2028
1580 return ev_time (); 2029 return ev_time ();
1581} 2030}
1582 2031
1583#if EV_MULTIPLICITY 2032#if EV_MULTIPLICITY
1584ev_tstamp 2033ev_tstamp
1585ev_now (EV_P) EV_THROW 2034ev_now (EV_P) EV_NOEXCEPT
1586{ 2035{
1587 return ev_rt_now; 2036 return ev_rt_now;
1588} 2037}
1589#endif 2038#endif
1590 2039
1591void 2040void
1592ev_sleep (ev_tstamp delay) EV_THROW 2041ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1593{ 2042{
1594 if (delay > 0.) 2043 if (delay > EV_TS_CONST (0.))
1595 { 2044 {
1596#if EV_USE_NANOSLEEP 2045#if EV_USE_NANOSLEEP
1597 struct timespec ts; 2046 struct timespec ts;
1598 2047
1599 EV_TS_SET (ts, delay); 2048 EV_TS_SET (ts, delay);
1600 nanosleep (&ts, 0); 2049 nanosleep (&ts, 0);
1601#elif defined _WIN32 2050#elif defined _WIN32
2051 /* maybe this should round up, as ms is very low resolution */
2052 /* compared to select (µs) or nanosleep (ns) */
1602 Sleep ((unsigned long)(delay * 1e3)); 2053 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1603#else 2054#else
1604 struct timeval tv; 2055 struct timeval tv;
1605 2056
1606 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2057 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1607 /* something not guaranteed by newer posix versions, but guaranteed */ 2058 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1637 } 2088 }
1638 2089
1639 return ncur; 2090 return ncur;
1640} 2091}
1641 2092
1642static void * noinline ecb_cold 2093ecb_noinline ecb_cold
2094static void *
1643array_realloc (int elem, void *base, int *cur, int cnt) 2095array_realloc (int elem, void *base, int *cur, int cnt)
1644{ 2096{
1645 *cur = array_nextsize (elem, *cur, cnt); 2097 *cur = array_nextsize (elem, *cur, cnt);
1646 return ev_realloc (base, elem * *cur); 2098 return ev_realloc (base, elem * *cur);
1647} 2099}
1648 2100
2101#define array_needsize_noinit(base,offset,count)
2102
1649#define array_init_zero(base,count) \ 2103#define array_needsize_zerofill(base,offset,count) \
1650 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2104 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1651 2105
1652#define array_needsize(type,base,cur,cnt,init) \ 2106#define array_needsize(type,base,cur,cnt,init) \
1653 if (expect_false ((cnt) > (cur))) \ 2107 if (ecb_expect_false ((cnt) > (cur))) \
1654 { \ 2108 { \
1655 int ecb_unused ocur_ = (cur); \ 2109 ecb_unused int ocur_ = (cur); \
1656 (base) = (type *)array_realloc \ 2110 (base) = (type *)array_realloc \
1657 (sizeof (type), (base), &(cur), (cnt)); \ 2111 (sizeof (type), (base), &(cur), (cnt)); \
1658 init ((base) + (ocur_), (cur) - ocur_); \ 2112 init ((base), ocur_, ((cur) - ocur_)); \
1659 } 2113 }
1660 2114
1661#if 0 2115#if 0
1662#define array_slim(type,stem) \ 2116#define array_slim(type,stem) \
1663 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2117 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1672 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2126 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1673 2127
1674/*****************************************************************************/ 2128/*****************************************************************************/
1675 2129
1676/* dummy callback for pending events */ 2130/* dummy callback for pending events */
1677static void noinline 2131ecb_noinline
2132static void
1678pendingcb (EV_P_ ev_prepare *w, int revents) 2133pendingcb (EV_P_ ev_prepare *w, int revents)
1679{ 2134{
1680} 2135}
1681 2136
1682void noinline 2137ecb_noinline
2138void
1683ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2139ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1684{ 2140{
1685 W w_ = (W)w; 2141 W w_ = (W)w;
1686 int pri = ABSPRI (w_); 2142 int pri = ABSPRI (w_);
1687 2143
1688 if (expect_false (w_->pending)) 2144 if (ecb_expect_false (w_->pending))
1689 pendings [pri][w_->pending - 1].events |= revents; 2145 pendings [pri][w_->pending - 1].events |= revents;
1690 else 2146 else
1691 { 2147 {
1692 w_->pending = ++pendingcnt [pri]; 2148 w_->pending = ++pendingcnt [pri];
1693 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2149 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1694 pendings [pri][w_->pending - 1].w = w_; 2150 pendings [pri][w_->pending - 1].w = w_;
1695 pendings [pri][w_->pending - 1].events = revents; 2151 pendings [pri][w_->pending - 1].events = revents;
1696 } 2152 }
1697 2153
1698 pendingpri = NUMPRI - 1; 2154 pendingpri = NUMPRI - 1;
1699} 2155}
1700 2156
1701inline_speed void 2157inline_speed void
1702feed_reverse (EV_P_ W w) 2158feed_reverse (EV_P_ W w)
1703{ 2159{
1704 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2160 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1705 rfeeds [rfeedcnt++] = w; 2161 rfeeds [rfeedcnt++] = w;
1706} 2162}
1707 2163
1708inline_size void 2164inline_size void
1709feed_reverse_done (EV_P_ int revents) 2165feed_reverse_done (EV_P_ int revents)
… …
1744inline_speed void 2200inline_speed void
1745fd_event (EV_P_ int fd, int revents) 2201fd_event (EV_P_ int fd, int revents)
1746{ 2202{
1747 ANFD *anfd = anfds + fd; 2203 ANFD *anfd = anfds + fd;
1748 2204
1749 if (expect_true (!anfd->reify)) 2205 if (ecb_expect_true (!anfd->reify))
1750 fd_event_nocheck (EV_A_ fd, revents); 2206 fd_event_nocheck (EV_A_ fd, revents);
1751} 2207}
1752 2208
1753void 2209void
1754ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2210ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1755{ 2211{
1756 if (fd >= 0 && fd < anfdmax) 2212 if (fd >= 0 && fd < anfdmax)
1757 fd_event_nocheck (EV_A_ fd, revents); 2213 fd_event_nocheck (EV_A_ fd, revents);
1758} 2214}
1759 2215
… …
1796 ev_io *w; 2252 ev_io *w;
1797 2253
1798 unsigned char o_events = anfd->events; 2254 unsigned char o_events = anfd->events;
1799 unsigned char o_reify = anfd->reify; 2255 unsigned char o_reify = anfd->reify;
1800 2256
1801 anfd->reify = 0; 2257 anfd->reify = 0;
1802 2258
1803 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2259 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1804 { 2260 {
1805 anfd->events = 0; 2261 anfd->events = 0;
1806 2262
1807 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2263 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1808 anfd->events |= (unsigned char)w->events; 2264 anfd->events |= (unsigned char)w->events;
… …
1817 2273
1818 fdchangecnt = 0; 2274 fdchangecnt = 0;
1819} 2275}
1820 2276
1821/* something about the given fd changed */ 2277/* something about the given fd changed */
1822inline_size void 2278inline_size
2279void
1823fd_change (EV_P_ int fd, int flags) 2280fd_change (EV_P_ int fd, int flags)
1824{ 2281{
1825 unsigned char reify = anfds [fd].reify; 2282 unsigned char reify = anfds [fd].reify;
1826 anfds [fd].reify |= flags; 2283 anfds [fd].reify |= flags;
1827 2284
1828 if (expect_true (!reify)) 2285 if (ecb_expect_true (!reify))
1829 { 2286 {
1830 ++fdchangecnt; 2287 ++fdchangecnt;
1831 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2288 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1832 fdchanges [fdchangecnt - 1] = fd; 2289 fdchanges [fdchangecnt - 1] = fd;
1833 } 2290 }
1834} 2291}
1835 2292
1836/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2293/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1837inline_speed void ecb_cold 2294inline_speed ecb_cold void
1838fd_kill (EV_P_ int fd) 2295fd_kill (EV_P_ int fd)
1839{ 2296{
1840 ev_io *w; 2297 ev_io *w;
1841 2298
1842 while ((w = (ev_io *)anfds [fd].head)) 2299 while ((w = (ev_io *)anfds [fd].head))
… …
1845 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2302 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1846 } 2303 }
1847} 2304}
1848 2305
1849/* check whether the given fd is actually valid, for error recovery */ 2306/* check whether the given fd is actually valid, for error recovery */
1850inline_size int ecb_cold 2307inline_size ecb_cold int
1851fd_valid (int fd) 2308fd_valid (int fd)
1852{ 2309{
1853#ifdef _WIN32 2310#ifdef _WIN32
1854 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2311 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1855#else 2312#else
1856 return fcntl (fd, F_GETFD) != -1; 2313 return fcntl (fd, F_GETFD) != -1;
1857#endif 2314#endif
1858} 2315}
1859 2316
1860/* called on EBADF to verify fds */ 2317/* called on EBADF to verify fds */
1861static void noinline ecb_cold 2318ecb_noinline ecb_cold
2319static void
1862fd_ebadf (EV_P) 2320fd_ebadf (EV_P)
1863{ 2321{
1864 int fd; 2322 int fd;
1865 2323
1866 for (fd = 0; fd < anfdmax; ++fd) 2324 for (fd = 0; fd < anfdmax; ++fd)
… …
1868 if (!fd_valid (fd) && errno == EBADF) 2326 if (!fd_valid (fd) && errno == EBADF)
1869 fd_kill (EV_A_ fd); 2327 fd_kill (EV_A_ fd);
1870} 2328}
1871 2329
1872/* called on ENOMEM in select/poll to kill some fds and retry */ 2330/* called on ENOMEM in select/poll to kill some fds and retry */
1873static void noinline ecb_cold 2331ecb_noinline ecb_cold
2332static void
1874fd_enomem (EV_P) 2333fd_enomem (EV_P)
1875{ 2334{
1876 int fd; 2335 int fd;
1877 2336
1878 for (fd = anfdmax; fd--; ) 2337 for (fd = anfdmax; fd--; )
… …
1882 break; 2341 break;
1883 } 2342 }
1884} 2343}
1885 2344
1886/* usually called after fork if backend needs to re-arm all fds from scratch */ 2345/* usually called after fork if backend needs to re-arm all fds from scratch */
1887static void noinline 2346ecb_noinline
2347static void
1888fd_rearm_all (EV_P) 2348fd_rearm_all (EV_P)
1889{ 2349{
1890 int fd; 2350 int fd;
1891 2351
1892 for (fd = 0; fd < anfdmax; ++fd) 2352 for (fd = 0; fd < anfdmax; ++fd)
… …
1945 ev_tstamp minat; 2405 ev_tstamp minat;
1946 ANHE *minpos; 2406 ANHE *minpos;
1947 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2407 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1948 2408
1949 /* find minimum child */ 2409 /* find minimum child */
1950 if (expect_true (pos + DHEAP - 1 < E)) 2410 if (ecb_expect_true (pos + DHEAP - 1 < E))
1951 { 2411 {
1952 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2412 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1953 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2413 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1954 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2414 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1955 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2415 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1956 } 2416 }
1957 else if (pos < E) 2417 else if (pos < E)
1958 { 2418 {
1959 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2419 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1960 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2420 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1961 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2421 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1962 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2422 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1963 } 2423 }
1964 else 2424 else
1965 break; 2425 break;
1966 2426
1967 if (ANHE_at (he) <= minat) 2427 if (ANHE_at (he) <= minat)
… …
1975 2435
1976 heap [k] = he; 2436 heap [k] = he;
1977 ev_active (ANHE_w (he)) = k; 2437 ev_active (ANHE_w (he)) = k;
1978} 2438}
1979 2439
1980#else /* 4HEAP */ 2440#else /* not 4HEAP */
1981 2441
1982#define HEAP0 1 2442#define HEAP0 1
1983#define HPARENT(k) ((k) >> 1) 2443#define HPARENT(k) ((k) >> 1)
1984#define UPHEAP_DONE(p,k) (!(p)) 2444#define UPHEAP_DONE(p,k) (!(p))
1985 2445
… …
2073 2533
2074/*****************************************************************************/ 2534/*****************************************************************************/
2075 2535
2076#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2536#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2077 2537
2078static void noinline ecb_cold 2538ecb_noinline ecb_cold
2539static void
2079evpipe_init (EV_P) 2540evpipe_init (EV_P)
2080{ 2541{
2081 if (!ev_is_active (&pipe_w)) 2542 if (!ev_is_active (&pipe_w))
2082 { 2543 {
2083 int fds [2]; 2544 int fds [2];
… …
2094 while (pipe (fds)) 2555 while (pipe (fds))
2095 ev_syserr ("(libev) error creating signal/async pipe"); 2556 ev_syserr ("(libev) error creating signal/async pipe");
2096 2557
2097 fd_intern (fds [0]); 2558 fd_intern (fds [0]);
2098 } 2559 }
2099
2100 fd_intern (fds [1]);
2101 2560
2102 evpipe [0] = fds [0]; 2561 evpipe [0] = fds [0];
2103 2562
2104 if (evpipe [1] < 0) 2563 if (evpipe [1] < 0)
2105 evpipe [1] = fds [1]; /* first call, set write fd */ 2564 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2112 2571
2113 dup2 (fds [1], evpipe [1]); 2572 dup2 (fds [1], evpipe [1]);
2114 close (fds [1]); 2573 close (fds [1]);
2115 } 2574 }
2116 2575
2576 fd_intern (evpipe [1]);
2577
2117 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2578 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2118 ev_io_start (EV_A_ &pipe_w); 2579 ev_io_start (EV_A_ &pipe_w);
2119 ev_unref (EV_A); /* watcher should not keep loop alive */ 2580 ev_unref (EV_A); /* watcher should not keep loop alive */
2120 } 2581 }
2121} 2582}
… …
2123inline_speed void 2584inline_speed void
2124evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2585evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2125{ 2586{
2126 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2587 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2127 2588
2128 if (expect_true (*flag)) 2589 if (ecb_expect_true (*flag))
2129 return; 2590 return;
2130 2591
2131 *flag = 1; 2592 *flag = 1;
2132 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2593 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2133 2594
… …
2154#endif 2615#endif
2155 { 2616 {
2156#ifdef _WIN32 2617#ifdef _WIN32
2157 WSABUF buf; 2618 WSABUF buf;
2158 DWORD sent; 2619 DWORD sent;
2159 buf.buf = &buf; 2620 buf.buf = (char *)&buf;
2160 buf.len = 1; 2621 buf.len = 1;
2161 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2622 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2162#else 2623#else
2163 write (evpipe [1], &(evpipe [1]), 1); 2624 write (evpipe [1], &(evpipe [1]), 1);
2164#endif 2625#endif
… …
2210 sig_pending = 0; 2671 sig_pending = 0;
2211 2672
2212 ECB_MEMORY_FENCE; 2673 ECB_MEMORY_FENCE;
2213 2674
2214 for (i = EV_NSIG - 1; i--; ) 2675 for (i = EV_NSIG - 1; i--; )
2215 if (expect_false (signals [i].pending)) 2676 if (ecb_expect_false (signals [i].pending))
2216 ev_feed_signal_event (EV_A_ i + 1); 2677 ev_feed_signal_event (EV_A_ i + 1);
2217 } 2678 }
2218#endif 2679#endif
2219 2680
2220#if EV_ASYNC_ENABLE 2681#if EV_ASYNC_ENABLE
… …
2236} 2697}
2237 2698
2238/*****************************************************************************/ 2699/*****************************************************************************/
2239 2700
2240void 2701void
2241ev_feed_signal (int signum) EV_THROW 2702ev_feed_signal (int signum) EV_NOEXCEPT
2242{ 2703{
2243#if EV_MULTIPLICITY 2704#if EV_MULTIPLICITY
2705 EV_P;
2244 ECB_MEMORY_FENCE_ACQUIRE; 2706 ECB_MEMORY_FENCE_ACQUIRE;
2245 EV_P = signals [signum - 1].loop; 2707 EV_A = signals [signum - 1].loop;
2246 2708
2247 if (!EV_A) 2709 if (!EV_A)
2248 return; 2710 return;
2249#endif 2711#endif
2250 2712
… …
2260#endif 2722#endif
2261 2723
2262 ev_feed_signal (signum); 2724 ev_feed_signal (signum);
2263} 2725}
2264 2726
2265void noinline 2727ecb_noinline
2728void
2266ev_feed_signal_event (EV_P_ int signum) EV_THROW 2729ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2267{ 2730{
2268 WL w; 2731 WL w;
2269 2732
2270 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2733 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2271 return; 2734 return;
2272 2735
2273 --signum; 2736 --signum;
2274 2737
2275#if EV_MULTIPLICITY 2738#if EV_MULTIPLICITY
2276 /* it is permissible to try to feed a signal to the wrong loop */ 2739 /* it is permissible to try to feed a signal to the wrong loop */
2277 /* or, likely more useful, feeding a signal nobody is waiting for */ 2740 /* or, likely more useful, feeding a signal nobody is waiting for */
2278 2741
2279 if (expect_false (signals [signum].loop != EV_A)) 2742 if (ecb_expect_false (signals [signum].loop != EV_A))
2280 return; 2743 return;
2281#endif 2744#endif
2282 2745
2283 signals [signum].pending = 0; 2746 signals [signum].pending = 0;
2284 ECB_MEMORY_FENCE_RELEASE; 2747 ECB_MEMORY_FENCE_RELEASE;
… …
2380# include "ev_kqueue.c" 2843# include "ev_kqueue.c"
2381#endif 2844#endif
2382#if EV_USE_EPOLL 2845#if EV_USE_EPOLL
2383# include "ev_epoll.c" 2846# include "ev_epoll.c"
2384#endif 2847#endif
2848#if EV_USE_LINUXAIO
2849# include "ev_linuxaio.c"
2850#endif
2851#if EV_USE_IOURING
2852# include "ev_iouring.c"
2853#endif
2385#if EV_USE_POLL 2854#if EV_USE_POLL
2386# include "ev_poll.c" 2855# include "ev_poll.c"
2387#endif 2856#endif
2388#if EV_USE_SELECT 2857#if EV_USE_SELECT
2389# include "ev_select.c" 2858# include "ev_select.c"
2390#endif 2859#endif
2391 2860
2392int ecb_cold 2861ecb_cold int
2393ev_version_major (void) EV_THROW 2862ev_version_major (void) EV_NOEXCEPT
2394{ 2863{
2395 return EV_VERSION_MAJOR; 2864 return EV_VERSION_MAJOR;
2396} 2865}
2397 2866
2398int ecb_cold 2867ecb_cold int
2399ev_version_minor (void) EV_THROW 2868ev_version_minor (void) EV_NOEXCEPT
2400{ 2869{
2401 return EV_VERSION_MINOR; 2870 return EV_VERSION_MINOR;
2402} 2871}
2403 2872
2404/* return true if we are running with elevated privileges and should ignore env variables */ 2873/* return true if we are running with elevated privileges and should ignore env variables */
2405int inline_size ecb_cold 2874inline_size ecb_cold int
2406enable_secure (void) 2875enable_secure (void)
2407{ 2876{
2408#ifdef _WIN32 2877#ifdef _WIN32
2409 return 0; 2878 return 0;
2410#else 2879#else
2411 return getuid () != geteuid () 2880 return getuid () != geteuid ()
2412 || getgid () != getegid (); 2881 || getgid () != getegid ();
2413#endif 2882#endif
2414} 2883}
2415 2884
2416unsigned int ecb_cold 2885ecb_cold
2886unsigned int
2417ev_supported_backends (void) EV_THROW 2887ev_supported_backends (void) EV_NOEXCEPT
2418{ 2888{
2419 unsigned int flags = 0; 2889 unsigned int flags = 0;
2420 2890
2421 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2891 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2422 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2892 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2423 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2893 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2894 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2895 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2424 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2896 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2425 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2897 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2426 2898
2427 return flags; 2899 return flags;
2428} 2900}
2429 2901
2430unsigned int ecb_cold 2902ecb_cold
2903unsigned int
2431ev_recommended_backends (void) EV_THROW 2904ev_recommended_backends (void) EV_NOEXCEPT
2432{ 2905{
2433 unsigned int flags = ev_supported_backends (); 2906 unsigned int flags = ev_supported_backends ();
2434 2907
2435#ifndef __NetBSD__ 2908#ifndef __NetBSD__
2436 /* kqueue is borked on everything but netbsd apparently */ 2909 /* kqueue is borked on everything but netbsd apparently */
… …
2444#endif 2917#endif
2445#ifdef __FreeBSD__ 2918#ifdef __FreeBSD__
2446 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2919 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2447#endif 2920#endif
2448 2921
2922 /* TODO: linuxaio is very experimental */
2923#if !EV_RECOMMEND_LINUXAIO
2924 flags &= ~EVBACKEND_LINUXAIO;
2925#endif
2926 /* TODO: linuxaio is super experimental */
2927#if !EV_RECOMMEND_IOURING
2928 flags &= ~EVBACKEND_IOURING;
2929#endif
2930
2449 return flags; 2931 return flags;
2450} 2932}
2451 2933
2452unsigned int ecb_cold 2934ecb_cold
2935unsigned int
2453ev_embeddable_backends (void) EV_THROW 2936ev_embeddable_backends (void) EV_NOEXCEPT
2454{ 2937{
2455 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2938 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2456 2939
2457 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2940 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2458 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2941 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2459 flags &= ~EVBACKEND_EPOLL; 2942 flags &= ~EVBACKEND_EPOLL;
2460 2943
2944 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2945
2946 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2947 * because our backend_fd is the epoll fd we need as fallback.
2948 * if the kernel ever is fixed, this might change...
2949 */
2950
2461 return flags; 2951 return flags;
2462} 2952}
2463 2953
2464unsigned int 2954unsigned int
2465ev_backend (EV_P) EV_THROW 2955ev_backend (EV_P) EV_NOEXCEPT
2466{ 2956{
2467 return backend; 2957 return backend;
2468} 2958}
2469 2959
2470#if EV_FEATURE_API 2960#if EV_FEATURE_API
2471unsigned int 2961unsigned int
2472ev_iteration (EV_P) EV_THROW 2962ev_iteration (EV_P) EV_NOEXCEPT
2473{ 2963{
2474 return loop_count; 2964 return loop_count;
2475} 2965}
2476 2966
2477unsigned int 2967unsigned int
2478ev_depth (EV_P) EV_THROW 2968ev_depth (EV_P) EV_NOEXCEPT
2479{ 2969{
2480 return loop_depth; 2970 return loop_depth;
2481} 2971}
2482 2972
2483void 2973void
2484ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2974ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2485{ 2975{
2486 io_blocktime = interval; 2976 io_blocktime = interval;
2487} 2977}
2488 2978
2489void 2979void
2490ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2980ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2491{ 2981{
2492 timeout_blocktime = interval; 2982 timeout_blocktime = interval;
2493} 2983}
2494 2984
2495void 2985void
2496ev_set_userdata (EV_P_ void *data) EV_THROW 2986ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2497{ 2987{
2498 userdata = data; 2988 userdata = data;
2499} 2989}
2500 2990
2501void * 2991void *
2502ev_userdata (EV_P) EV_THROW 2992ev_userdata (EV_P) EV_NOEXCEPT
2503{ 2993{
2504 return userdata; 2994 return userdata;
2505} 2995}
2506 2996
2507void 2997void
2508ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2998ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2509{ 2999{
2510 invoke_cb = invoke_pending_cb; 3000 invoke_cb = invoke_pending_cb;
2511} 3001}
2512 3002
2513void 3003void
2514ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3004ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2515{ 3005{
2516 release_cb = release; 3006 release_cb = release;
2517 acquire_cb = acquire; 3007 acquire_cb = acquire;
2518} 3008}
2519#endif 3009#endif
2520 3010
2521/* initialise a loop structure, must be zero-initialised */ 3011/* initialise a loop structure, must be zero-initialised */
2522static void noinline ecb_cold 3012ecb_noinline ecb_cold
3013static void
2523loop_init (EV_P_ unsigned int flags) EV_THROW 3014loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2524{ 3015{
2525 if (!backend) 3016 if (!backend)
2526 { 3017 {
2527 origflags = flags; 3018 origflags = flags;
2528 3019
… …
2586 3077
2587 if (!(flags & EVBACKEND_MASK)) 3078 if (!(flags & EVBACKEND_MASK))
2588 flags |= ev_recommended_backends (); 3079 flags |= ev_recommended_backends ();
2589 3080
2590#if EV_USE_IOCP 3081#if EV_USE_IOCP
2591 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3082 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2592#endif 3083#endif
2593#if EV_USE_PORT 3084#if EV_USE_PORT
2594 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3085 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2595#endif 3086#endif
2596#if EV_USE_KQUEUE 3087#if EV_USE_KQUEUE
2597 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3088 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3089#endif
3090#if EV_USE_IOURING
3091 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3092#endif
3093#if EV_USE_LINUXAIO
3094 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2598#endif 3095#endif
2599#if EV_USE_EPOLL 3096#if EV_USE_EPOLL
2600 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3097 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2601#endif 3098#endif
2602#if EV_USE_POLL 3099#if EV_USE_POLL
2603 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3100 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2604#endif 3101#endif
2605#if EV_USE_SELECT 3102#if EV_USE_SELECT
2606 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3103 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2607#endif 3104#endif
2608 3105
2609 ev_prepare_init (&pending_w, pendingcb); 3106 ev_prepare_init (&pending_w, pendingcb);
2610 3107
2611#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3108#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2614#endif 3111#endif
2615 } 3112 }
2616} 3113}
2617 3114
2618/* free up a loop structure */ 3115/* free up a loop structure */
2619void ecb_cold 3116ecb_cold
3117void
2620ev_loop_destroy (EV_P) 3118ev_loop_destroy (EV_P)
2621{ 3119{
2622 int i; 3120 int i;
2623 3121
2624#if EV_MULTIPLICITY 3122#if EV_MULTIPLICITY
… …
2627 return; 3125 return;
2628#endif 3126#endif
2629 3127
2630#if EV_CLEANUP_ENABLE 3128#if EV_CLEANUP_ENABLE
2631 /* queue cleanup watchers (and execute them) */ 3129 /* queue cleanup watchers (and execute them) */
2632 if (expect_false (cleanupcnt)) 3130 if (ecb_expect_false (cleanupcnt))
2633 { 3131 {
2634 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3132 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2635 EV_INVOKE_PENDING; 3133 EV_INVOKE_PENDING;
2636 } 3134 }
2637#endif 3135#endif
… …
2665 3163
2666 if (backend_fd >= 0) 3164 if (backend_fd >= 0)
2667 close (backend_fd); 3165 close (backend_fd);
2668 3166
2669#if EV_USE_IOCP 3167#if EV_USE_IOCP
2670 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3168 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2671#endif 3169#endif
2672#if EV_USE_PORT 3170#if EV_USE_PORT
2673 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3171 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2674#endif 3172#endif
2675#if EV_USE_KQUEUE 3173#if EV_USE_KQUEUE
2676 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3174 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3175#endif
3176#if EV_USE_IOURING
3177 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3178#endif
3179#if EV_USE_LINUXAIO
3180 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2677#endif 3181#endif
2678#if EV_USE_EPOLL 3182#if EV_USE_EPOLL
2679 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3183 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2680#endif 3184#endif
2681#if EV_USE_POLL 3185#if EV_USE_POLL
2682 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3186 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2683#endif 3187#endif
2684#if EV_USE_SELECT 3188#if EV_USE_SELECT
2685 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3189 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2686#endif 3190#endif
2687 3191
2688 for (i = NUMPRI; i--; ) 3192 for (i = NUMPRI; i--; )
2689 { 3193 {
2690 array_free (pending, [i]); 3194 array_free (pending, [i]);
… …
2732 3236
2733inline_size void 3237inline_size void
2734loop_fork (EV_P) 3238loop_fork (EV_P)
2735{ 3239{
2736#if EV_USE_PORT 3240#if EV_USE_PORT
2737 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3241 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2738#endif 3242#endif
2739#if EV_USE_KQUEUE 3243#if EV_USE_KQUEUE
2740 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3244 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3245#endif
3246#if EV_USE_IOURING
3247 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3248#endif
3249#if EV_USE_LINUXAIO
3250 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2741#endif 3251#endif
2742#if EV_USE_EPOLL 3252#if EV_USE_EPOLL
2743 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3253 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2744#endif 3254#endif
2745#if EV_USE_INOTIFY 3255#if EV_USE_INOTIFY
2746 infy_fork (EV_A); 3256 infy_fork (EV_A);
2747#endif 3257#endif
2748 3258
2749#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3259#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2750 if (ev_is_active (&pipe_w)) 3260 if (ev_is_active (&pipe_w) && postfork != 2)
2751 { 3261 {
2752 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3262 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2753 3263
2754 ev_ref (EV_A); 3264 ev_ref (EV_A);
2755 ev_io_stop (EV_A_ &pipe_w); 3265 ev_io_stop (EV_A_ &pipe_w);
… …
2766 postfork = 0; 3276 postfork = 0;
2767} 3277}
2768 3278
2769#if EV_MULTIPLICITY 3279#if EV_MULTIPLICITY
2770 3280
3281ecb_cold
2771struct ev_loop * ecb_cold 3282struct ev_loop *
2772ev_loop_new (unsigned int flags) EV_THROW 3283ev_loop_new (unsigned int flags) EV_NOEXCEPT
2773{ 3284{
2774 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3285 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2775 3286
2776 memset (EV_A, 0, sizeof (struct ev_loop)); 3287 memset (EV_A, 0, sizeof (struct ev_loop));
2777 loop_init (EV_A_ flags); 3288 loop_init (EV_A_ flags);
… …
2784} 3295}
2785 3296
2786#endif /* multiplicity */ 3297#endif /* multiplicity */
2787 3298
2788#if EV_VERIFY 3299#if EV_VERIFY
2789static void noinline ecb_cold 3300ecb_noinline ecb_cold
3301static void
2790verify_watcher (EV_P_ W w) 3302verify_watcher (EV_P_ W w)
2791{ 3303{
2792 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3304 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2793 3305
2794 if (w->pending) 3306 if (w->pending)
2795 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3307 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2796} 3308}
2797 3309
2798static void noinline ecb_cold 3310ecb_noinline ecb_cold
3311static void
2799verify_heap (EV_P_ ANHE *heap, int N) 3312verify_heap (EV_P_ ANHE *heap, int N)
2800{ 3313{
2801 int i; 3314 int i;
2802 3315
2803 for (i = HEAP0; i < N + HEAP0; ++i) 3316 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2808 3321
2809 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3322 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2810 } 3323 }
2811} 3324}
2812 3325
2813static void noinline ecb_cold 3326ecb_noinline ecb_cold
3327static void
2814array_verify (EV_P_ W *ws, int cnt) 3328array_verify (EV_P_ W *ws, int cnt)
2815{ 3329{
2816 while (cnt--) 3330 while (cnt--)
2817 { 3331 {
2818 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3332 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2821} 3335}
2822#endif 3336#endif
2823 3337
2824#if EV_FEATURE_API 3338#if EV_FEATURE_API
2825void ecb_cold 3339void ecb_cold
2826ev_verify (EV_P) EV_THROW 3340ev_verify (EV_P) EV_NOEXCEPT
2827{ 3341{
2828#if EV_VERIFY 3342#if EV_VERIFY
2829 int i; 3343 int i;
2830 WL w, w2; 3344 WL w, w2;
2831 3345
… …
2907#endif 3421#endif
2908} 3422}
2909#endif 3423#endif
2910 3424
2911#if EV_MULTIPLICITY 3425#if EV_MULTIPLICITY
3426ecb_cold
2912struct ev_loop * ecb_cold 3427struct ev_loop *
2913#else 3428#else
2914int 3429int
2915#endif 3430#endif
2916ev_default_loop (unsigned int flags) EV_THROW 3431ev_default_loop (unsigned int flags) EV_NOEXCEPT
2917{ 3432{
2918 if (!ev_default_loop_ptr) 3433 if (!ev_default_loop_ptr)
2919 { 3434 {
2920#if EV_MULTIPLICITY 3435#if EV_MULTIPLICITY
2921 EV_P = ev_default_loop_ptr = &default_loop_struct; 3436 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2940 3455
2941 return ev_default_loop_ptr; 3456 return ev_default_loop_ptr;
2942} 3457}
2943 3458
2944void 3459void
2945ev_loop_fork (EV_P) EV_THROW 3460ev_loop_fork (EV_P) EV_NOEXCEPT
2946{ 3461{
2947 postfork = 1; 3462 postfork = 1;
2948} 3463}
2949 3464
2950/*****************************************************************************/ 3465/*****************************************************************************/
… …
2954{ 3469{
2955 EV_CB_INVOKE ((W)w, revents); 3470 EV_CB_INVOKE ((W)w, revents);
2956} 3471}
2957 3472
2958unsigned int 3473unsigned int
2959ev_pending_count (EV_P) EV_THROW 3474ev_pending_count (EV_P) EV_NOEXCEPT
2960{ 3475{
2961 int pri; 3476 int pri;
2962 unsigned int count = 0; 3477 unsigned int count = 0;
2963 3478
2964 for (pri = NUMPRI; pri--; ) 3479 for (pri = NUMPRI; pri--; )
2965 count += pendingcnt [pri]; 3480 count += pendingcnt [pri];
2966 3481
2967 return count; 3482 return count;
2968} 3483}
2969 3484
2970void noinline 3485ecb_noinline
3486void
2971ev_invoke_pending (EV_P) 3487ev_invoke_pending (EV_P)
2972{ 3488{
2973 pendingpri = NUMPRI; 3489 pendingpri = NUMPRI;
2974 3490
2975 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3491 do
2976 { 3492 {
2977 --pendingpri; 3493 --pendingpri;
2978 3494
3495 /* pendingpri possibly gets modified in the inner loop */
2979 while (pendingcnt [pendingpri]) 3496 while (pendingcnt [pendingpri])
2980 { 3497 {
2981 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3498 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2982 3499
2983 p->w->pending = 0; 3500 p->w->pending = 0;
2984 EV_CB_INVOKE (p->w, p->events); 3501 EV_CB_INVOKE (p->w, p->events);
2985 EV_FREQUENT_CHECK; 3502 EV_FREQUENT_CHECK;
2986 } 3503 }
2987 } 3504 }
3505 while (pendingpri);
2988} 3506}
2989 3507
2990#if EV_IDLE_ENABLE 3508#if EV_IDLE_ENABLE
2991/* make idle watchers pending. this handles the "call-idle */ 3509/* make idle watchers pending. this handles the "call-idle */
2992/* only when higher priorities are idle" logic */ 3510/* only when higher priorities are idle" logic */
2993inline_size void 3511inline_size void
2994idle_reify (EV_P) 3512idle_reify (EV_P)
2995{ 3513{
2996 if (expect_false (idleall)) 3514 if (ecb_expect_false (idleall))
2997 { 3515 {
2998 int pri; 3516 int pri;
2999 3517
3000 for (pri = NUMPRI; pri--; ) 3518 for (pri = NUMPRI; pri--; )
3001 { 3519 {
… …
3031 { 3549 {
3032 ev_at (w) += w->repeat; 3550 ev_at (w) += w->repeat;
3033 if (ev_at (w) < mn_now) 3551 if (ev_at (w) < mn_now)
3034 ev_at (w) = mn_now; 3552 ev_at (w) = mn_now;
3035 3553
3036 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3554 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3037 3555
3038 ANHE_at_cache (timers [HEAP0]); 3556 ANHE_at_cache (timers [HEAP0]);
3039 downheap (timers, timercnt, HEAP0); 3557 downheap (timers, timercnt, HEAP0);
3040 } 3558 }
3041 else 3559 else
… …
3050 } 3568 }
3051} 3569}
3052 3570
3053#if EV_PERIODIC_ENABLE 3571#if EV_PERIODIC_ENABLE
3054 3572
3055static void noinline 3573ecb_noinline
3574static void
3056periodic_recalc (EV_P_ ev_periodic *w) 3575periodic_recalc (EV_P_ ev_periodic *w)
3057{ 3576{
3058 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3577 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3059 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3578 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3060 3579
… …
3062 while (at <= ev_rt_now) 3581 while (at <= ev_rt_now)
3063 { 3582 {
3064 ev_tstamp nat = at + w->interval; 3583 ev_tstamp nat = at + w->interval;
3065 3584
3066 /* when resolution fails us, we use ev_rt_now */ 3585 /* when resolution fails us, we use ev_rt_now */
3067 if (expect_false (nat == at)) 3586 if (ecb_expect_false (nat == at))
3068 { 3587 {
3069 at = ev_rt_now; 3588 at = ev_rt_now;
3070 break; 3589 break;
3071 } 3590 }
3072 3591
… …
3118 } 3637 }
3119} 3638}
3120 3639
3121/* simply recalculate all periodics */ 3640/* simply recalculate all periodics */
3122/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3641/* TODO: maybe ensure that at least one event happens when jumping forward? */
3123static void noinline ecb_cold 3642ecb_noinline ecb_cold
3643static void
3124periodics_reschedule (EV_P) 3644periodics_reschedule (EV_P)
3125{ 3645{
3126 int i; 3646 int i;
3127 3647
3128 /* adjust periodics after time jump */ 3648 /* adjust periodics after time jump */
… …
3141 reheap (periodics, periodiccnt); 3661 reheap (periodics, periodiccnt);
3142} 3662}
3143#endif 3663#endif
3144 3664
3145/* adjust all timers by a given offset */ 3665/* adjust all timers by a given offset */
3146static void noinline ecb_cold 3666ecb_noinline ecb_cold
3667static void
3147timers_reschedule (EV_P_ ev_tstamp adjust) 3668timers_reschedule (EV_P_ ev_tstamp adjust)
3148{ 3669{
3149 int i; 3670 int i;
3150 3671
3151 for (i = 0; i < timercnt; ++i) 3672 for (i = 0; i < timercnt; ++i)
… …
3160/* also detect if there was a timejump, and act accordingly */ 3681/* also detect if there was a timejump, and act accordingly */
3161inline_speed void 3682inline_speed void
3162time_update (EV_P_ ev_tstamp max_block) 3683time_update (EV_P_ ev_tstamp max_block)
3163{ 3684{
3164#if EV_USE_MONOTONIC 3685#if EV_USE_MONOTONIC
3165 if (expect_true (have_monotonic)) 3686 if (ecb_expect_true (have_monotonic))
3166 { 3687 {
3167 int i; 3688 int i;
3168 ev_tstamp odiff = rtmn_diff; 3689 ev_tstamp odiff = rtmn_diff;
3169 3690
3170 mn_now = get_clock (); 3691 mn_now = get_clock ();
3171 3692
3172 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3693 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3173 /* interpolate in the meantime */ 3694 /* interpolate in the meantime */
3174 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3695 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3175 { 3696 {
3176 ev_rt_now = rtmn_diff + mn_now; 3697 ev_rt_now = rtmn_diff + mn_now;
3177 return; 3698 return;
3178 } 3699 }
3179 3700
… …
3193 ev_tstamp diff; 3714 ev_tstamp diff;
3194 rtmn_diff = ev_rt_now - mn_now; 3715 rtmn_diff = ev_rt_now - mn_now;
3195 3716
3196 diff = odiff - rtmn_diff; 3717 diff = odiff - rtmn_diff;
3197 3718
3198 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3719 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3199 return; /* all is well */ 3720 return; /* all is well */
3200 3721
3201 ev_rt_now = ev_time (); 3722 ev_rt_now = ev_time ();
3202 mn_now = get_clock (); 3723 mn_now = get_clock ();
3203 now_floor = mn_now; 3724 now_floor = mn_now;
… …
3212 else 3733 else
3213#endif 3734#endif
3214 { 3735 {
3215 ev_rt_now = ev_time (); 3736 ev_rt_now = ev_time ();
3216 3737
3217 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3738 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3218 { 3739 {
3219 /* adjust timers. this is easy, as the offset is the same for all of them */ 3740 /* adjust timers. this is easy, as the offset is the same for all of them */
3220 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3741 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3221#if EV_PERIODIC_ENABLE 3742#if EV_PERIODIC_ENABLE
3222 periodics_reschedule (EV_A); 3743 periodics_reschedule (EV_A);
… …
3245#if EV_VERIFY >= 2 3766#if EV_VERIFY >= 2
3246 ev_verify (EV_A); 3767 ev_verify (EV_A);
3247#endif 3768#endif
3248 3769
3249#ifndef _WIN32 3770#ifndef _WIN32
3250 if (expect_false (curpid)) /* penalise the forking check even more */ 3771 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3251 if (expect_false (getpid () != curpid)) 3772 if (ecb_expect_false (getpid () != curpid))
3252 { 3773 {
3253 curpid = getpid (); 3774 curpid = getpid ();
3254 postfork = 1; 3775 postfork = 1;
3255 } 3776 }
3256#endif 3777#endif
3257 3778
3258#if EV_FORK_ENABLE 3779#if EV_FORK_ENABLE
3259 /* we might have forked, so queue fork handlers */ 3780 /* we might have forked, so queue fork handlers */
3260 if (expect_false (postfork)) 3781 if (ecb_expect_false (postfork))
3261 if (forkcnt) 3782 if (forkcnt)
3262 { 3783 {
3263 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3784 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3264 EV_INVOKE_PENDING; 3785 EV_INVOKE_PENDING;
3265 } 3786 }
3266#endif 3787#endif
3267 3788
3268#if EV_PREPARE_ENABLE 3789#if EV_PREPARE_ENABLE
3269 /* queue prepare watchers (and execute them) */ 3790 /* queue prepare watchers (and execute them) */
3270 if (expect_false (preparecnt)) 3791 if (ecb_expect_false (preparecnt))
3271 { 3792 {
3272 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3793 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3273 EV_INVOKE_PENDING; 3794 EV_INVOKE_PENDING;
3274 } 3795 }
3275#endif 3796#endif
3276 3797
3277 if (expect_false (loop_done)) 3798 if (ecb_expect_false (loop_done))
3278 break; 3799 break;
3279 3800
3280 /* we might have forked, so reify kernel state if necessary */ 3801 /* we might have forked, so reify kernel state if necessary */
3281 if (expect_false (postfork)) 3802 if (ecb_expect_false (postfork))
3282 loop_fork (EV_A); 3803 loop_fork (EV_A);
3283 3804
3284 /* update fd-related kernel structures */ 3805 /* update fd-related kernel structures */
3285 fd_reify (EV_A); 3806 fd_reify (EV_A);
3286 3807
… …
3291 3812
3292 /* remember old timestamp for io_blocktime calculation */ 3813 /* remember old timestamp for io_blocktime calculation */
3293 ev_tstamp prev_mn_now = mn_now; 3814 ev_tstamp prev_mn_now = mn_now;
3294 3815
3295 /* update time to cancel out callback processing overhead */ 3816 /* update time to cancel out callback processing overhead */
3296 time_update (EV_A_ 1e100); 3817 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3297 3818
3298 /* from now on, we want a pipe-wake-up */ 3819 /* from now on, we want a pipe-wake-up */
3299 pipe_write_wanted = 1; 3820 pipe_write_wanted = 1;
3300 3821
3301 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3822 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3302 3823
3303 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3824 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3304 { 3825 {
3305 waittime = MAX_BLOCKTIME; 3826 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3306 3827
3307 if (timercnt) 3828 if (timercnt)
3308 { 3829 {
3309 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3830 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3310 if (waittime > to) waittime = to; 3831 if (waittime > to) waittime = to;
… …
3317 if (waittime > to) waittime = to; 3838 if (waittime > to) waittime = to;
3318 } 3839 }
3319#endif 3840#endif
3320 3841
3321 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3842 /* don't let timeouts decrease the waittime below timeout_blocktime */
3322 if (expect_false (waittime < timeout_blocktime)) 3843 if (ecb_expect_false (waittime < timeout_blocktime))
3323 waittime = timeout_blocktime; 3844 waittime = timeout_blocktime;
3324 3845
3325 /* at this point, we NEED to wait, so we have to ensure */ 3846 /* at this point, we NEED to wait, so we have to ensure */
3326 /* to pass a minimum nonzero value to the backend */ 3847 /* to pass a minimum nonzero value to the backend */
3327 if (expect_false (waittime < backend_mintime)) 3848 if (ecb_expect_false (waittime < backend_mintime))
3328 waittime = backend_mintime; 3849 waittime = backend_mintime;
3329 3850
3330 /* extra check because io_blocktime is commonly 0 */ 3851 /* extra check because io_blocktime is commonly 0 */
3331 if (expect_false (io_blocktime)) 3852 if (ecb_expect_false (io_blocktime))
3332 { 3853 {
3333 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3854 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3334 3855
3335 if (sleeptime > waittime - backend_mintime) 3856 if (sleeptime > waittime - backend_mintime)
3336 sleeptime = waittime - backend_mintime; 3857 sleeptime = waittime - backend_mintime;
3337 3858
3338 if (expect_true (sleeptime > 0.)) 3859 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3339 { 3860 {
3340 ev_sleep (sleeptime); 3861 ev_sleep (sleeptime);
3341 waittime -= sleeptime; 3862 waittime -= sleeptime;
3342 } 3863 }
3343 } 3864 }
… …
3357 { 3878 {
3358 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3879 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3359 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3880 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3360 } 3881 }
3361 3882
3362
3363 /* update ev_rt_now, do magic */ 3883 /* update ev_rt_now, do magic */
3364 time_update (EV_A_ waittime + sleeptime); 3884 time_update (EV_A_ waittime + sleeptime);
3365 } 3885 }
3366 3886
3367 /* queue pending timers and reschedule them */ 3887 /* queue pending timers and reschedule them */
… …
3375 idle_reify (EV_A); 3895 idle_reify (EV_A);
3376#endif 3896#endif
3377 3897
3378#if EV_CHECK_ENABLE 3898#if EV_CHECK_ENABLE
3379 /* queue check watchers, to be executed first */ 3899 /* queue check watchers, to be executed first */
3380 if (expect_false (checkcnt)) 3900 if (ecb_expect_false (checkcnt))
3381 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3901 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3382#endif 3902#endif
3383 3903
3384 EV_INVOKE_PENDING; 3904 EV_INVOKE_PENDING;
3385 } 3905 }
3386 while (expect_true ( 3906 while (ecb_expect_true (
3387 activecnt 3907 activecnt
3388 && !loop_done 3908 && !loop_done
3389 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3909 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3390 )); 3910 ));
3391 3911
… …
3398 3918
3399 return activecnt; 3919 return activecnt;
3400} 3920}
3401 3921
3402void 3922void
3403ev_break (EV_P_ int how) EV_THROW 3923ev_break (EV_P_ int how) EV_NOEXCEPT
3404{ 3924{
3405 loop_done = how; 3925 loop_done = how;
3406} 3926}
3407 3927
3408void 3928void
3409ev_ref (EV_P) EV_THROW 3929ev_ref (EV_P) EV_NOEXCEPT
3410{ 3930{
3411 ++activecnt; 3931 ++activecnt;
3412} 3932}
3413 3933
3414void 3934void
3415ev_unref (EV_P) EV_THROW 3935ev_unref (EV_P) EV_NOEXCEPT
3416{ 3936{
3417 --activecnt; 3937 --activecnt;
3418} 3938}
3419 3939
3420void 3940void
3421ev_now_update (EV_P) EV_THROW 3941ev_now_update (EV_P) EV_NOEXCEPT
3422{ 3942{
3423 time_update (EV_A_ 1e100); 3943 time_update (EV_A_ EV_TSTAMP_HUGE);
3424} 3944}
3425 3945
3426void 3946void
3427ev_suspend (EV_P) EV_THROW 3947ev_suspend (EV_P) EV_NOEXCEPT
3428{ 3948{
3429 ev_now_update (EV_A); 3949 ev_now_update (EV_A);
3430} 3950}
3431 3951
3432void 3952void
3433ev_resume (EV_P) EV_THROW 3953ev_resume (EV_P) EV_NOEXCEPT
3434{ 3954{
3435 ev_tstamp mn_prev = mn_now; 3955 ev_tstamp mn_prev = mn_now;
3436 3956
3437 ev_now_update (EV_A); 3957 ev_now_update (EV_A);
3438 timers_reschedule (EV_A_ mn_now - mn_prev); 3958 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3455inline_size void 3975inline_size void
3456wlist_del (WL *head, WL elem) 3976wlist_del (WL *head, WL elem)
3457{ 3977{
3458 while (*head) 3978 while (*head)
3459 { 3979 {
3460 if (expect_true (*head == elem)) 3980 if (ecb_expect_true (*head == elem))
3461 { 3981 {
3462 *head = elem->next; 3982 *head = elem->next;
3463 break; 3983 break;
3464 } 3984 }
3465 3985
… …
3477 w->pending = 0; 3997 w->pending = 0;
3478 } 3998 }
3479} 3999}
3480 4000
3481int 4001int
3482ev_clear_pending (EV_P_ void *w) EV_THROW 4002ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3483{ 4003{
3484 W w_ = (W)w; 4004 W w_ = (W)w;
3485 int pending = w_->pending; 4005 int pending = w_->pending;
3486 4006
3487 if (expect_true (pending)) 4007 if (ecb_expect_true (pending))
3488 { 4008 {
3489 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4009 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3490 p->w = (W)&pending_w; 4010 p->w = (W)&pending_w;
3491 w_->pending = 0; 4011 w_->pending = 0;
3492 return p->events; 4012 return p->events;
… …
3519 w->active = 0; 4039 w->active = 0;
3520} 4040}
3521 4041
3522/*****************************************************************************/ 4042/*****************************************************************************/
3523 4043
3524void noinline 4044ecb_noinline
4045void
3525ev_io_start (EV_P_ ev_io *w) EV_THROW 4046ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3526{ 4047{
3527 int fd = w->fd; 4048 int fd = w->fd;
3528 4049
3529 if (expect_false (ev_is_active (w))) 4050 if (ecb_expect_false (ev_is_active (w)))
3530 return; 4051 return;
3531 4052
3532 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4053 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3533 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4054 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3534 4055
4056#if EV_VERIFY >= 2
4057 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4058#endif
3535 EV_FREQUENT_CHECK; 4059 EV_FREQUENT_CHECK;
3536 4060
3537 ev_start (EV_A_ (W)w, 1); 4061 ev_start (EV_A_ (W)w, 1);
3538 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4062 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3539 wlist_add (&anfds[fd].head, (WL)w); 4063 wlist_add (&anfds[fd].head, (WL)w);
3540 4064
3541 /* common bug, apparently */ 4065 /* common bug, apparently */
3542 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4066 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3543 4067
… …
3545 w->events &= ~EV__IOFDSET; 4069 w->events &= ~EV__IOFDSET;
3546 4070
3547 EV_FREQUENT_CHECK; 4071 EV_FREQUENT_CHECK;
3548} 4072}
3549 4073
3550void noinline 4074ecb_noinline
4075void
3551ev_io_stop (EV_P_ ev_io *w) EV_THROW 4076ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3552{ 4077{
3553 clear_pending (EV_A_ (W)w); 4078 clear_pending (EV_A_ (W)w);
3554 if (expect_false (!ev_is_active (w))) 4079 if (ecb_expect_false (!ev_is_active (w)))
3555 return; 4080 return;
3556 4081
3557 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4082 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3558 4083
4084#if EV_VERIFY >= 2
4085 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4086#endif
3559 EV_FREQUENT_CHECK; 4087 EV_FREQUENT_CHECK;
3560 4088
3561 wlist_del (&anfds[w->fd].head, (WL)w); 4089 wlist_del (&anfds[w->fd].head, (WL)w);
3562 ev_stop (EV_A_ (W)w); 4090 ev_stop (EV_A_ (W)w);
3563 4091
3564 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4092 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3565 4093
3566 EV_FREQUENT_CHECK; 4094 EV_FREQUENT_CHECK;
3567} 4095}
3568 4096
3569void noinline 4097ecb_noinline
4098void
3570ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4099ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3571{ 4100{
3572 if (expect_false (ev_is_active (w))) 4101 if (ecb_expect_false (ev_is_active (w)))
3573 return; 4102 return;
3574 4103
3575 ev_at (w) += mn_now; 4104 ev_at (w) += mn_now;
3576 4105
3577 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4106 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3578 4107
3579 EV_FREQUENT_CHECK; 4108 EV_FREQUENT_CHECK;
3580 4109
3581 ++timercnt; 4110 ++timercnt;
3582 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4111 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3583 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4112 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3584 ANHE_w (timers [ev_active (w)]) = (WT)w; 4113 ANHE_w (timers [ev_active (w)]) = (WT)w;
3585 ANHE_at_cache (timers [ev_active (w)]); 4114 ANHE_at_cache (timers [ev_active (w)]);
3586 upheap (timers, ev_active (w)); 4115 upheap (timers, ev_active (w));
3587 4116
3588 EV_FREQUENT_CHECK; 4117 EV_FREQUENT_CHECK;
3589 4118
3590 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4119 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3591} 4120}
3592 4121
3593void noinline 4122ecb_noinline
4123void
3594ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4124ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3595{ 4125{
3596 clear_pending (EV_A_ (W)w); 4126 clear_pending (EV_A_ (W)w);
3597 if (expect_false (!ev_is_active (w))) 4127 if (ecb_expect_false (!ev_is_active (w)))
3598 return; 4128 return;
3599 4129
3600 EV_FREQUENT_CHECK; 4130 EV_FREQUENT_CHECK;
3601 4131
3602 { 4132 {
… …
3604 4134
3605 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4135 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3606 4136
3607 --timercnt; 4137 --timercnt;
3608 4138
3609 if (expect_true (active < timercnt + HEAP0)) 4139 if (ecb_expect_true (active < timercnt + HEAP0))
3610 { 4140 {
3611 timers [active] = timers [timercnt + HEAP0]; 4141 timers [active] = timers [timercnt + HEAP0];
3612 adjustheap (timers, timercnt, active); 4142 adjustheap (timers, timercnt, active);
3613 } 4143 }
3614 } 4144 }
… …
3618 ev_stop (EV_A_ (W)w); 4148 ev_stop (EV_A_ (W)w);
3619 4149
3620 EV_FREQUENT_CHECK; 4150 EV_FREQUENT_CHECK;
3621} 4151}
3622 4152
3623void noinline 4153ecb_noinline
4154void
3624ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4155ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3625{ 4156{
3626 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3627 4158
3628 clear_pending (EV_A_ (W)w); 4159 clear_pending (EV_A_ (W)w);
3629 4160
… …
3646 4177
3647 EV_FREQUENT_CHECK; 4178 EV_FREQUENT_CHECK;
3648} 4179}
3649 4180
3650ev_tstamp 4181ev_tstamp
3651ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4182ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3652{ 4183{
3653 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4184 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3654} 4185}
3655 4186
3656#if EV_PERIODIC_ENABLE 4187#if EV_PERIODIC_ENABLE
3657void noinline 4188ecb_noinline
4189void
3658ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4190ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3659{ 4191{
3660 if (expect_false (ev_is_active (w))) 4192 if (ecb_expect_false (ev_is_active (w)))
3661 return; 4193 return;
3662 4194
3663 if (w->reschedule_cb) 4195 if (w->reschedule_cb)
3664 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4196 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3665 else if (w->interval) 4197 else if (w->interval)
… …
3672 4204
3673 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
3674 4206
3675 ++periodiccnt; 4207 ++periodiccnt;
3676 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4208 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3677 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4209 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3678 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4210 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3679 ANHE_at_cache (periodics [ev_active (w)]); 4211 ANHE_at_cache (periodics [ev_active (w)]);
3680 upheap (periodics, ev_active (w)); 4212 upheap (periodics, ev_active (w));
3681 4213
3682 EV_FREQUENT_CHECK; 4214 EV_FREQUENT_CHECK;
3683 4215
3684 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4216 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3685} 4217}
3686 4218
3687void noinline 4219ecb_noinline
4220void
3688ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4221ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3689{ 4222{
3690 clear_pending (EV_A_ (W)w); 4223 clear_pending (EV_A_ (W)w);
3691 if (expect_false (!ev_is_active (w))) 4224 if (ecb_expect_false (!ev_is_active (w)))
3692 return; 4225 return;
3693 4226
3694 EV_FREQUENT_CHECK; 4227 EV_FREQUENT_CHECK;
3695 4228
3696 { 4229 {
… …
3698 4231
3699 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4232 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3700 4233
3701 --periodiccnt; 4234 --periodiccnt;
3702 4235
3703 if (expect_true (active < periodiccnt + HEAP0)) 4236 if (ecb_expect_true (active < periodiccnt + HEAP0))
3704 { 4237 {
3705 periodics [active] = periodics [periodiccnt + HEAP0]; 4238 periodics [active] = periodics [periodiccnt + HEAP0];
3706 adjustheap (periodics, periodiccnt, active); 4239 adjustheap (periodics, periodiccnt, active);
3707 } 4240 }
3708 } 4241 }
… …
3710 ev_stop (EV_A_ (W)w); 4243 ev_stop (EV_A_ (W)w);
3711 4244
3712 EV_FREQUENT_CHECK; 4245 EV_FREQUENT_CHECK;
3713} 4246}
3714 4247
3715void noinline 4248ecb_noinline
4249void
3716ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4250ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3717{ 4251{
3718 /* TODO: use adjustheap and recalculation */ 4252 /* TODO: use adjustheap and recalculation */
3719 ev_periodic_stop (EV_A_ w); 4253 ev_periodic_stop (EV_A_ w);
3720 ev_periodic_start (EV_A_ w); 4254 ev_periodic_start (EV_A_ w);
3721} 4255}
… …
3725# define SA_RESTART 0 4259# define SA_RESTART 0
3726#endif 4260#endif
3727 4261
3728#if EV_SIGNAL_ENABLE 4262#if EV_SIGNAL_ENABLE
3729 4263
3730void noinline 4264ecb_noinline
4265void
3731ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4266ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3732{ 4267{
3733 if (expect_false (ev_is_active (w))) 4268 if (ecb_expect_false (ev_is_active (w)))
3734 return; 4269 return;
3735 4270
3736 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4271 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3737 4272
3738#if EV_MULTIPLICITY 4273#if EV_MULTIPLICITY
… …
3807 } 4342 }
3808 4343
3809 EV_FREQUENT_CHECK; 4344 EV_FREQUENT_CHECK;
3810} 4345}
3811 4346
3812void noinline 4347ecb_noinline
4348void
3813ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4349ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3814{ 4350{
3815 clear_pending (EV_A_ (W)w); 4351 clear_pending (EV_A_ (W)w);
3816 if (expect_false (!ev_is_active (w))) 4352 if (ecb_expect_false (!ev_is_active (w)))
3817 return; 4353 return;
3818 4354
3819 EV_FREQUENT_CHECK; 4355 EV_FREQUENT_CHECK;
3820 4356
3821 wlist_del (&signals [w->signum - 1].head, (WL)w); 4357 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3849#endif 4385#endif
3850 4386
3851#if EV_CHILD_ENABLE 4387#if EV_CHILD_ENABLE
3852 4388
3853void 4389void
3854ev_child_start (EV_P_ ev_child *w) EV_THROW 4390ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3855{ 4391{
3856#if EV_MULTIPLICITY 4392#if EV_MULTIPLICITY
3857 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4393 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3858#endif 4394#endif
3859 if (expect_false (ev_is_active (w))) 4395 if (ecb_expect_false (ev_is_active (w)))
3860 return; 4396 return;
3861 4397
3862 EV_FREQUENT_CHECK; 4398 EV_FREQUENT_CHECK;
3863 4399
3864 ev_start (EV_A_ (W)w, 1); 4400 ev_start (EV_A_ (W)w, 1);
… …
3866 4402
3867 EV_FREQUENT_CHECK; 4403 EV_FREQUENT_CHECK;
3868} 4404}
3869 4405
3870void 4406void
3871ev_child_stop (EV_P_ ev_child *w) EV_THROW 4407ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3872{ 4408{
3873 clear_pending (EV_A_ (W)w); 4409 clear_pending (EV_A_ (W)w);
3874 if (expect_false (!ev_is_active (w))) 4410 if (ecb_expect_false (!ev_is_active (w)))
3875 return; 4411 return;
3876 4412
3877 EV_FREQUENT_CHECK; 4413 EV_FREQUENT_CHECK;
3878 4414
3879 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4415 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3893 4429
3894#define DEF_STAT_INTERVAL 5.0074891 4430#define DEF_STAT_INTERVAL 5.0074891
3895#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4431#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3896#define MIN_STAT_INTERVAL 0.1074891 4432#define MIN_STAT_INTERVAL 0.1074891
3897 4433
3898static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4434ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3899 4435
3900#if EV_USE_INOTIFY 4436#if EV_USE_INOTIFY
3901 4437
3902/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4438/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3903# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4439# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3904 4440
3905static void noinline 4441ecb_noinline
4442static void
3906infy_add (EV_P_ ev_stat *w) 4443infy_add (EV_P_ ev_stat *w)
3907{ 4444{
3908 w->wd = inotify_add_watch (fs_fd, w->path, 4445 w->wd = inotify_add_watch (fs_fd, w->path,
3909 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4446 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3910 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4447 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
3974 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4511 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3975 ev_timer_again (EV_A_ &w->timer); 4512 ev_timer_again (EV_A_ &w->timer);
3976 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4513 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3977} 4514}
3978 4515
3979static void noinline 4516ecb_noinline
4517static void
3980infy_del (EV_P_ ev_stat *w) 4518infy_del (EV_P_ ev_stat *w)
3981{ 4519{
3982 int slot; 4520 int slot;
3983 int wd = w->wd; 4521 int wd = w->wd;
3984 4522
… …
3991 4529
3992 /* remove this watcher, if others are watching it, they will rearm */ 4530 /* remove this watcher, if others are watching it, they will rearm */
3993 inotify_rm_watch (fs_fd, wd); 4531 inotify_rm_watch (fs_fd, wd);
3994} 4532}
3995 4533
3996static void noinline 4534ecb_noinline
4535static void
3997infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4536infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3998{ 4537{
3999 if (slot < 0) 4538 if (slot < 0)
4000 /* overflow, need to check for all hash slots */ 4539 /* overflow, need to check for all hash slots */
4001 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4540 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4037 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4576 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4038 ofs += sizeof (struct inotify_event) + ev->len; 4577 ofs += sizeof (struct inotify_event) + ev->len;
4039 } 4578 }
4040} 4579}
4041 4580
4042inline_size void ecb_cold 4581inline_size ecb_cold
4582void
4043ev_check_2625 (EV_P) 4583ev_check_2625 (EV_P)
4044{ 4584{
4045 /* kernels < 2.6.25 are borked 4585 /* kernels < 2.6.25 are borked
4046 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4586 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4047 */ 4587 */
… …
4137#else 4677#else
4138# define EV_LSTAT(p,b) lstat (p, b) 4678# define EV_LSTAT(p,b) lstat (p, b)
4139#endif 4679#endif
4140 4680
4141void 4681void
4142ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4682ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4143{ 4683{
4144 if (lstat (w->path, &w->attr) < 0) 4684 if (lstat (w->path, &w->attr) < 0)
4145 w->attr.st_nlink = 0; 4685 w->attr.st_nlink = 0;
4146 else if (!w->attr.st_nlink) 4686 else if (!w->attr.st_nlink)
4147 w->attr.st_nlink = 1; 4687 w->attr.st_nlink = 1;
4148} 4688}
4149 4689
4150static void noinline 4690ecb_noinline
4691static void
4151stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4692stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4152{ 4693{
4153 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4694 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4154 4695
4155 ev_statdata prev = w->attr; 4696 ev_statdata prev = w->attr;
… …
4186 ev_feed_event (EV_A_ w, EV_STAT); 4727 ev_feed_event (EV_A_ w, EV_STAT);
4187 } 4728 }
4188} 4729}
4189 4730
4190void 4731void
4191ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4732ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4192{ 4733{
4193 if (expect_false (ev_is_active (w))) 4734 if (ecb_expect_false (ev_is_active (w)))
4194 return; 4735 return;
4195 4736
4196 ev_stat_stat (EV_A_ w); 4737 ev_stat_stat (EV_A_ w);
4197 4738
4198 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4739 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4217 4758
4218 EV_FREQUENT_CHECK; 4759 EV_FREQUENT_CHECK;
4219} 4760}
4220 4761
4221void 4762void
4222ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4763ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4223{ 4764{
4224 clear_pending (EV_A_ (W)w); 4765 clear_pending (EV_A_ (W)w);
4225 if (expect_false (!ev_is_active (w))) 4766 if (ecb_expect_false (!ev_is_active (w)))
4226 return; 4767 return;
4227 4768
4228 EV_FREQUENT_CHECK; 4769 EV_FREQUENT_CHECK;
4229 4770
4230#if EV_USE_INOTIFY 4771#if EV_USE_INOTIFY
… …
4243} 4784}
4244#endif 4785#endif
4245 4786
4246#if EV_IDLE_ENABLE 4787#if EV_IDLE_ENABLE
4247void 4788void
4248ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4789ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4249{ 4790{
4250 if (expect_false (ev_is_active (w))) 4791 if (ecb_expect_false (ev_is_active (w)))
4251 return; 4792 return;
4252 4793
4253 pri_adjust (EV_A_ (W)w); 4794 pri_adjust (EV_A_ (W)w);
4254 4795
4255 EV_FREQUENT_CHECK; 4796 EV_FREQUENT_CHECK;
… …
4258 int active = ++idlecnt [ABSPRI (w)]; 4799 int active = ++idlecnt [ABSPRI (w)];
4259 4800
4260 ++idleall; 4801 ++idleall;
4261 ev_start (EV_A_ (W)w, active); 4802 ev_start (EV_A_ (W)w, active);
4262 4803
4263 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4804 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4264 idles [ABSPRI (w)][active - 1] = w; 4805 idles [ABSPRI (w)][active - 1] = w;
4265 } 4806 }
4266 4807
4267 EV_FREQUENT_CHECK; 4808 EV_FREQUENT_CHECK;
4268} 4809}
4269 4810
4270void 4811void
4271ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4812ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4272{ 4813{
4273 clear_pending (EV_A_ (W)w); 4814 clear_pending (EV_A_ (W)w);
4274 if (expect_false (!ev_is_active (w))) 4815 if (ecb_expect_false (!ev_is_active (w)))
4275 return; 4816 return;
4276 4817
4277 EV_FREQUENT_CHECK; 4818 EV_FREQUENT_CHECK;
4278 4819
4279 { 4820 {
… …
4290} 4831}
4291#endif 4832#endif
4292 4833
4293#if EV_PREPARE_ENABLE 4834#if EV_PREPARE_ENABLE
4294void 4835void
4295ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4836ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4296{ 4837{
4297 if (expect_false (ev_is_active (w))) 4838 if (ecb_expect_false (ev_is_active (w)))
4298 return; 4839 return;
4299 4840
4300 EV_FREQUENT_CHECK; 4841 EV_FREQUENT_CHECK;
4301 4842
4302 ev_start (EV_A_ (W)w, ++preparecnt); 4843 ev_start (EV_A_ (W)w, ++preparecnt);
4303 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4844 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4304 prepares [preparecnt - 1] = w; 4845 prepares [preparecnt - 1] = w;
4305 4846
4306 EV_FREQUENT_CHECK; 4847 EV_FREQUENT_CHECK;
4307} 4848}
4308 4849
4309void 4850void
4310ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4851ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4311{ 4852{
4312 clear_pending (EV_A_ (W)w); 4853 clear_pending (EV_A_ (W)w);
4313 if (expect_false (!ev_is_active (w))) 4854 if (ecb_expect_false (!ev_is_active (w)))
4314 return; 4855 return;
4315 4856
4316 EV_FREQUENT_CHECK; 4857 EV_FREQUENT_CHECK;
4317 4858
4318 { 4859 {
… …
4328} 4869}
4329#endif 4870#endif
4330 4871
4331#if EV_CHECK_ENABLE 4872#if EV_CHECK_ENABLE
4332void 4873void
4333ev_check_start (EV_P_ ev_check *w) EV_THROW 4874ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4334{ 4875{
4335 if (expect_false (ev_is_active (w))) 4876 if (ecb_expect_false (ev_is_active (w)))
4336 return; 4877 return;
4337 4878
4338 EV_FREQUENT_CHECK; 4879 EV_FREQUENT_CHECK;
4339 4880
4340 ev_start (EV_A_ (W)w, ++checkcnt); 4881 ev_start (EV_A_ (W)w, ++checkcnt);
4341 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4882 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4342 checks [checkcnt - 1] = w; 4883 checks [checkcnt - 1] = w;
4343 4884
4344 EV_FREQUENT_CHECK; 4885 EV_FREQUENT_CHECK;
4345} 4886}
4346 4887
4347void 4888void
4348ev_check_stop (EV_P_ ev_check *w) EV_THROW 4889ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4349{ 4890{
4350 clear_pending (EV_A_ (W)w); 4891 clear_pending (EV_A_ (W)w);
4351 if (expect_false (!ev_is_active (w))) 4892 if (ecb_expect_false (!ev_is_active (w)))
4352 return; 4893 return;
4353 4894
4354 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
4355 4896
4356 { 4897 {
… …
4365 EV_FREQUENT_CHECK; 4906 EV_FREQUENT_CHECK;
4366} 4907}
4367#endif 4908#endif
4368 4909
4369#if EV_EMBED_ENABLE 4910#if EV_EMBED_ENABLE
4370void noinline 4911ecb_noinline
4912void
4371ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4913ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4372{ 4914{
4373 ev_run (w->other, EVRUN_NOWAIT); 4915 ev_run (w->other, EVRUN_NOWAIT);
4374} 4916}
4375 4917
4376static void 4918static void
… …
4424 ev_idle_stop (EV_A_ idle); 4966 ev_idle_stop (EV_A_ idle);
4425} 4967}
4426#endif 4968#endif
4427 4969
4428void 4970void
4429ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4971ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4430{ 4972{
4431 if (expect_false (ev_is_active (w))) 4973 if (ecb_expect_false (ev_is_active (w)))
4432 return; 4974 return;
4433 4975
4434 { 4976 {
4435 EV_P = w->other; 4977 EV_P = w->other;
4436 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4978 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4455 4997
4456 EV_FREQUENT_CHECK; 4998 EV_FREQUENT_CHECK;
4457} 4999}
4458 5000
4459void 5001void
4460ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5002ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4461{ 5003{
4462 clear_pending (EV_A_ (W)w); 5004 clear_pending (EV_A_ (W)w);
4463 if (expect_false (!ev_is_active (w))) 5005 if (ecb_expect_false (!ev_is_active (w)))
4464 return; 5006 return;
4465 5007
4466 EV_FREQUENT_CHECK; 5008 EV_FREQUENT_CHECK;
4467 5009
4468 ev_io_stop (EV_A_ &w->io); 5010 ev_io_stop (EV_A_ &w->io);
… …
4475} 5017}
4476#endif 5018#endif
4477 5019
4478#if EV_FORK_ENABLE 5020#if EV_FORK_ENABLE
4479void 5021void
4480ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5022ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4481{ 5023{
4482 if (expect_false (ev_is_active (w))) 5024 if (ecb_expect_false (ev_is_active (w)))
4483 return; 5025 return;
4484 5026
4485 EV_FREQUENT_CHECK; 5027 EV_FREQUENT_CHECK;
4486 5028
4487 ev_start (EV_A_ (W)w, ++forkcnt); 5029 ev_start (EV_A_ (W)w, ++forkcnt);
4488 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5030 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4489 forks [forkcnt - 1] = w; 5031 forks [forkcnt - 1] = w;
4490 5032
4491 EV_FREQUENT_CHECK; 5033 EV_FREQUENT_CHECK;
4492} 5034}
4493 5035
4494void 5036void
4495ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5037ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4496{ 5038{
4497 clear_pending (EV_A_ (W)w); 5039 clear_pending (EV_A_ (W)w);
4498 if (expect_false (!ev_is_active (w))) 5040 if (ecb_expect_false (!ev_is_active (w)))
4499 return; 5041 return;
4500 5042
4501 EV_FREQUENT_CHECK; 5043 EV_FREQUENT_CHECK;
4502 5044
4503 { 5045 {
… …
4513} 5055}
4514#endif 5056#endif
4515 5057
4516#if EV_CLEANUP_ENABLE 5058#if EV_CLEANUP_ENABLE
4517void 5059void
4518ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5060ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4519{ 5061{
4520 if (expect_false (ev_is_active (w))) 5062 if (ecb_expect_false (ev_is_active (w)))
4521 return; 5063 return;
4522 5064
4523 EV_FREQUENT_CHECK; 5065 EV_FREQUENT_CHECK;
4524 5066
4525 ev_start (EV_A_ (W)w, ++cleanupcnt); 5067 ev_start (EV_A_ (W)w, ++cleanupcnt);
4526 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5068 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4527 cleanups [cleanupcnt - 1] = w; 5069 cleanups [cleanupcnt - 1] = w;
4528 5070
4529 /* cleanup watchers should never keep a refcount on the loop */ 5071 /* cleanup watchers should never keep a refcount on the loop */
4530 ev_unref (EV_A); 5072 ev_unref (EV_A);
4531 EV_FREQUENT_CHECK; 5073 EV_FREQUENT_CHECK;
4532} 5074}
4533 5075
4534void 5076void
4535ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5077ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4536{ 5078{
4537 clear_pending (EV_A_ (W)w); 5079 clear_pending (EV_A_ (W)w);
4538 if (expect_false (!ev_is_active (w))) 5080 if (ecb_expect_false (!ev_is_active (w)))
4539 return; 5081 return;
4540 5082
4541 EV_FREQUENT_CHECK; 5083 EV_FREQUENT_CHECK;
4542 ev_ref (EV_A); 5084 ev_ref (EV_A);
4543 5085
… …
4554} 5096}
4555#endif 5097#endif
4556 5098
4557#if EV_ASYNC_ENABLE 5099#if EV_ASYNC_ENABLE
4558void 5100void
4559ev_async_start (EV_P_ ev_async *w) EV_THROW 5101ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4560{ 5102{
4561 if (expect_false (ev_is_active (w))) 5103 if (ecb_expect_false (ev_is_active (w)))
4562 return; 5104 return;
4563 5105
4564 w->sent = 0; 5106 w->sent = 0;
4565 5107
4566 evpipe_init (EV_A); 5108 evpipe_init (EV_A);
4567 5109
4568 EV_FREQUENT_CHECK; 5110 EV_FREQUENT_CHECK;
4569 5111
4570 ev_start (EV_A_ (W)w, ++asynccnt); 5112 ev_start (EV_A_ (W)w, ++asynccnt);
4571 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5113 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4572 asyncs [asynccnt - 1] = w; 5114 asyncs [asynccnt - 1] = w;
4573 5115
4574 EV_FREQUENT_CHECK; 5116 EV_FREQUENT_CHECK;
4575} 5117}
4576 5118
4577void 5119void
4578ev_async_stop (EV_P_ ev_async *w) EV_THROW 5120ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4579{ 5121{
4580 clear_pending (EV_A_ (W)w); 5122 clear_pending (EV_A_ (W)w);
4581 if (expect_false (!ev_is_active (w))) 5123 if (ecb_expect_false (!ev_is_active (w)))
4582 return; 5124 return;
4583 5125
4584 EV_FREQUENT_CHECK; 5126 EV_FREQUENT_CHECK;
4585 5127
4586 { 5128 {
… …
4594 5136
4595 EV_FREQUENT_CHECK; 5137 EV_FREQUENT_CHECK;
4596} 5138}
4597 5139
4598void 5140void
4599ev_async_send (EV_P_ ev_async *w) EV_THROW 5141ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4600{ 5142{
4601 w->sent = 1; 5143 w->sent = 1;
4602 evpipe_write (EV_A_ &async_pending); 5144 evpipe_write (EV_A_ &async_pending);
4603} 5145}
4604#endif 5146#endif
… …
4641 5183
4642 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5184 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4643} 5185}
4644 5186
4645void 5187void
4646ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5188ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4647{ 5189{
4648 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5190 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4649
4650 if (expect_false (!once))
4651 {
4652 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4653 return;
4654 }
4655 5191
4656 once->cb = cb; 5192 once->cb = cb;
4657 once->arg = arg; 5193 once->arg = arg;
4658 5194
4659 ev_init (&once->io, once_cb_io); 5195 ev_init (&once->io, once_cb_io);
… …
4672} 5208}
4673 5209
4674/*****************************************************************************/ 5210/*****************************************************************************/
4675 5211
4676#if EV_WALK_ENABLE 5212#if EV_WALK_ENABLE
4677void ecb_cold 5213ecb_cold
5214void
4678ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5215ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4679{ 5216{
4680 int i, j; 5217 int i, j;
4681 ev_watcher_list *wl, *wn; 5218 ev_watcher_list *wl, *wn;
4682 5219
4683 if (types & (EV_IO | EV_EMBED)) 5220 if (types & (EV_IO | EV_EMBED))

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