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Comparing libev/ev.c (file contents):
Revision 1.450 by root, Mon Oct 8 15:43:35 2012 UTC vs.
Revision 1.508 by root, Thu Jul 11 08:29:08 2019 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
113# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
114# endif 114# endif
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif
119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
118# endif 127# endif
119 128
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 130# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
… …
162# define EV_USE_EVENTFD 0 171# define EV_USE_EVENTFD 0
163# endif 172# endif
164 173
165#endif 174#endif
166 175
176/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were
179 * ordered to have a vacuum, or they do anything for money.
180 * This might help. Or not.
181 * Note that this must be defined early, as other include files
182 * will rely on this define as well.
183 */
184#define _DARWIN_UNLIMITED_SELECT 1
185
167#include <stdlib.h> 186#include <stdlib.h>
168#include <string.h> 187#include <string.h>
169#include <fcntl.h> 188#include <fcntl.h>
170#include <stddef.h> 189#include <stddef.h>
171 190
… …
208# ifndef EV_SELECT_IS_WINSOCKET 227# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 228# define EV_SELECT_IS_WINSOCKET 1
210# endif 229# endif
211# undef EV_AVOID_STDIO 230# undef EV_AVOID_STDIO
212#endif 231#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 232
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 233/* this block tries to deduce configuration from header-defined symbols and defaults */
223 234
224/* try to deduce the maximum number of signals on this platform */ 235/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 236#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 252#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 253# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 254#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 255# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 256#else
246# error "unable to find value for NSIG, please report" 257# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 258#endif
251 259
252#ifndef EV_USE_FLOOR 260#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 261# define EV_USE_FLOOR 0
254#endif 262#endif
255 263
256#ifndef EV_USE_CLOCK_SYSCALL 264#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 265# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 266# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 267# else
260# define EV_USE_CLOCK_SYSCALL 0 268# define EV_USE_CLOCK_SYSCALL 0
269# endif
270#endif
271
272#if !(_POSIX_TIMERS > 0)
273# ifndef EV_USE_MONOTONIC
274# define EV_USE_MONOTONIC 0
275# endif
276# ifndef EV_USE_REALTIME
277# define EV_USE_REALTIME 0
261# endif 278# endif
262#endif 279#endif
263 280
264#ifndef EV_USE_MONOTONIC 281#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 282# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
307 324
308#ifndef EV_USE_PORT 325#ifndef EV_USE_PORT
309# define EV_USE_PORT 0 326# define EV_USE_PORT 0
310#endif 327#endif
311 328
329#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1
332# else
333# define EV_USE_LINUXAIO 0
334# endif
335#endif
336
337#ifndef EV_USE_IOURING
338# if __linux
339# define EV_USE_IOURING 0
340# else
341# define EV_USE_IOURING 0
342# endif
343#endif
344
312#ifndef EV_USE_INOTIFY 345#ifndef EV_USE_INOTIFY
313# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 346# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
314# define EV_USE_INOTIFY EV_FEATURE_OS 347# define EV_USE_INOTIFY EV_FEATURE_OS
315# else 348# else
316# define EV_USE_INOTIFY 0 349# define EV_USE_INOTIFY 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 388# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 389#endif
357 390
358#ifndef EV_HEAP_CACHE_AT 391#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 392# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
393#endif
394
395#ifdef __ANDROID__
396/* supposedly, android doesn't typedef fd_mask */
397# undef EV_USE_SELECT
398# define EV_USE_SELECT 0
399/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
400# undef EV_USE_CLOCK_SYSCALL
401# define EV_USE_CLOCK_SYSCALL 0
402#endif
403
404/* aix's poll.h seems to cause lots of trouble */
405#ifdef _AIX
406/* AIX has a completely broken poll.h header */
407# undef EV_USE_POLL
408# define EV_USE_POLL 0
360#endif 409#endif
361 410
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 411/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */ 412/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 413#if EV_USE_CLOCK_SYSCALL
365# include <sys/syscall.h> 414# include <sys/syscall.h>
366# ifdef SYS_clock_gettime 415# ifdef SYS_clock_gettime
367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 416# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
368# undef EV_USE_MONOTONIC 417# undef EV_USE_MONOTONIC
369# define EV_USE_MONOTONIC 1 418# define EV_USE_MONOTONIC 1
419# define EV_NEED_SYSCALL 1
370# else 420# else
371# undef EV_USE_CLOCK_SYSCALL 421# undef EV_USE_CLOCK_SYSCALL
372# define EV_USE_CLOCK_SYSCALL 0 422# define EV_USE_CLOCK_SYSCALL 0
373# endif 423# endif
374#endif 424#endif
375 425
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 426/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377 427
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
384#ifndef CLOCK_MONOTONIC 428#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 429# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 430# define EV_USE_MONOTONIC 0
387#endif 431#endif
388 432
… …
398 442
399#if !EV_USE_NANOSLEEP 443#if !EV_USE_NANOSLEEP
400/* hp-ux has it in sys/time.h, which we unconditionally include above */ 444/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux 445# if !defined _WIN32 && !defined __hpux
402# include <sys/select.h> 446# include <sys/select.h>
447# endif
448#endif
449
450#if EV_USE_LINUXAIO
451# include <sys/syscall.h>
452# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
453# define EV_NEED_SYSCALL 1
454# else
455# undef EV_USE_LINUXAIO
456# define EV_USE_LINUXAIO 0
457# endif
458#endif
459
460#if EV_USE_IOURING
461# include <sys/syscall.h>
462# if !SYS_io_uring_setup && __linux && !__alpha
463# define SYS_io_uring_setup 425
464# define SYS_io_uring_enter 426
465# define SYS_io_uring_wregister 427
466# endif
467# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
468# define EV_NEED_SYSCALL 1
469# else
470# undef EV_USE_IOURING
471# define EV_USE_IOURING 0
403# endif 472# endif
404#endif 473#endif
405 474
406#if EV_USE_INOTIFY 475#if EV_USE_INOTIFY
407# include <sys/statfs.h> 476# include <sys/statfs.h>
… …
449 uint32_t ssi_signo; 518 uint32_t ssi_signo;
450 char pad[128 - sizeof (uint32_t)]; 519 char pad[128 - sizeof (uint32_t)];
451}; 520};
452#endif 521#endif
453 522
454/**/ 523/*****************************************************************************/
455 524
456#if EV_VERIFY >= 3 525#if EV_VERIFY >= 3
457# define EV_FREQUENT_CHECK ev_verify (EV_A) 526# define EV_FREQUENT_CHECK ev_verify (EV_A)
458#else 527#else
459# define EV_FREQUENT_CHECK do { } while (0) 528# define EV_FREQUENT_CHECK do { } while (0)
… …
464 * This value is good at least till the year 4000. 533 * This value is good at least till the year 4000.
465 */ 534 */
466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 535#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 536/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
468 537
469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 538#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 539#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
471 540
541/* find a portable timestamp that is "always" in the future but fits into time_t.
542 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
543 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
544#define EV_TSTAMP_HUGE \
545 (sizeof (time_t) >= 8 ? 10000000000000. \
546 : 0 < (time_t)4294967295 ? 4294967295. \
547 : 2147483647.) \
548
549#define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
550#define EV_TS_FROM_USEC(us) us * 1e-6
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 551#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 552#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
553#define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
554#define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
474 555
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 556/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 557/* ECB.H BEGIN */
477/* 558/*
478 * libecb - http://software.schmorp.de/pkg/libecb 559 * libecb - http://software.schmorp.de/pkg/libecb
479 * 560 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 561 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 562 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 563 * All rights reserved.
483 * 564 *
484 * Redistribution and use in source and binary forms, with or without modifica- 565 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 566 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 580 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 581 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 582 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 583 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 584 * OF THE POSSIBILITY OF SUCH DAMAGE.
585 *
586 * Alternatively, the contents of this file may be used under the terms of
587 * the GNU General Public License ("GPL") version 2 or any later version,
588 * in which case the provisions of the GPL are applicable instead of
589 * the above. If you wish to allow the use of your version of this file
590 * only under the terms of the GPL and not to allow others to use your
591 * version of this file under the BSD license, indicate your decision
592 * by deleting the provisions above and replace them with the notice
593 * and other provisions required by the GPL. If you do not delete the
594 * provisions above, a recipient may use your version of this file under
595 * either the BSD or the GPL.
504 */ 596 */
505 597
506#ifndef ECB_H 598#ifndef ECB_H
507#define ECB_H 599#define ECB_H
508 600
509/* 16 bits major, 16 bits minor */ 601/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010002 602#define ECB_VERSION 0x00010006
511 603
512#ifdef _WIN32 604#ifdef _WIN32
513 typedef signed char int8_t; 605 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 606 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 607 typedef signed short int16_t;
… …
532 typedef uint32_t uintptr_t; 624 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t; 625 typedef int32_t intptr_t;
534 #endif 626 #endif
535#else 627#else
536 #include <inttypes.h> 628 #include <inttypes.h>
537 #if UINTMAX_MAX > 0xffffffffU 629 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
538 #define ECB_PTRSIZE 8 630 #define ECB_PTRSIZE 8
539 #else 631 #else
540 #define ECB_PTRSIZE 4 632 #define ECB_PTRSIZE 4
633 #endif
634#endif
635
636#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
637#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
638
639/* work around x32 idiocy by defining proper macros */
640#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
641 #if _ILP32
642 #define ECB_AMD64_X32 1
643 #else
644 #define ECB_AMD64 1
541 #endif 645 #endif
542#endif 646#endif
543 647
544/* many compilers define _GNUC_ to some versions but then only implement 648/* many compilers define _GNUC_ to some versions but then only implement
545 * what their idiot authors think are the "more important" extensions, 649 * what their idiot authors think are the "more important" extensions,
546 * causing enormous grief in return for some better fake benchmark numbers. 650 * causing enormous grief in return for some better fake benchmark numbers.
547 * or so. 651 * or so.
548 * we try to detect these and simply assume they are not gcc - if they have 652 * we try to detect these and simply assume they are not gcc - if they have
549 * an issue with that they should have done it right in the first place. 653 * an issue with that they should have done it right in the first place.
550 */ 654 */
551#ifndef ECB_GCC_VERSION
552 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 655#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
553 #define ECB_GCC_VERSION(major,minor) 0 656 #define ECB_GCC_VERSION(major,minor) 0
554 #else 657#else
555 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 658 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
556 #endif 659#endif
557#endif
558 660
559#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ 661#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
560#define ECB_C99 (__STDC_VERSION__ >= 199901L) 662
561#define ECB_C11 (__STDC_VERSION__ >= 201112L) 663#if __clang__ && defined __has_builtin
664 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
665#else
666 #define ECB_CLANG_BUILTIN(x) 0
667#endif
668
669#if __clang__ && defined __has_extension
670 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
671#else
672 #define ECB_CLANG_EXTENSION(x) 0
673#endif
674
562#define ECB_CPP (__cplusplus+0) 675#define ECB_CPP (__cplusplus+0)
563#define ECB_CPP11 (__cplusplus >= 201103L) 676#define ECB_CPP11 (__cplusplus >= 201103L)
677#define ECB_CPP14 (__cplusplus >= 201402L)
678#define ECB_CPP17 (__cplusplus >= 201703L)
679
680#if ECB_CPP
681 #define ECB_C 0
682 #define ECB_STDC_VERSION 0
683#else
684 #define ECB_C 1
685 #define ECB_STDC_VERSION __STDC_VERSION__
686#endif
687
688#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
689#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
690#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
564 691
565#if ECB_CPP 692#if ECB_CPP
566 #define ECB_EXTERN_C extern "C" 693 #define ECB_EXTERN_C extern "C"
567 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 694 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
568 #define ECB_EXTERN_C_END } 695 #define ECB_EXTERN_C_END }
… …
583 710
584#if ECB_NO_SMP 711#if ECB_NO_SMP
585 #define ECB_MEMORY_FENCE do { } while (0) 712 #define ECB_MEMORY_FENCE do { } while (0)
586#endif 713#endif
587 714
715/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
716#if __xlC__ && ECB_CPP
717 #include <builtins.h>
718#endif
719
720#if 1400 <= _MSC_VER
721 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
722#endif
723
588#ifndef ECB_MEMORY_FENCE 724#ifndef ECB_MEMORY_FENCE
589 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 725 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
726 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
590 #if __i386 || __i386__ 727 #if __i386 || __i386__
591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 728 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
592 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 729 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
593 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 730 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
594 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 731 #elif ECB_GCC_AMD64
595 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 732 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
596 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 733 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
597 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 734 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
598 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 735 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 736 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
737 #elif defined __ARM_ARCH_2__ \
738 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
739 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
740 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
741 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
742 || defined __ARM_ARCH_5TEJ__
743 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
600 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 744 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
601 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 745 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
746 || defined __ARM_ARCH_6T2__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 747 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
603 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 748 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
604 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 749 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 750 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
606 #elif __sparc || __sparc__ 751 #elif __aarch64__
752 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
753 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 754 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 755 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 756 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
610 #elif defined __s390__ || defined __s390x__ 757 #elif defined __s390__ || defined __s390x__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 758 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
612 #elif defined __mips__ 759 #elif defined __mips__
760 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
761 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
613 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 762 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
614 #elif defined __alpha__ 763 #elif defined __alpha__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 764 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
616 #elif defined __hppa__ 765 #elif defined __hppa__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 766 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
618 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 767 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
619 #elif defined __ia64__ 768 #elif defined __ia64__
620 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 769 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
770 #elif defined __m68k__
771 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
772 #elif defined __m88k__
773 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
774 #elif defined __sh__
775 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
621 #endif 776 #endif
622 #endif 777 #endif
623#endif 778#endif
624 779
625#ifndef ECB_MEMORY_FENCE 780#ifndef ECB_MEMORY_FENCE
626 #if ECB_GCC_VERSION(4,7) 781 #if ECB_GCC_VERSION(4,7)
627 /* see comment below (stdatomic.h) about the C11 memory model. */ 782 /* see comment below (stdatomic.h) about the C11 memory model. */
628 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 783 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
784 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
785 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
786 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
629 787
630 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 788 #elif ECB_CLANG_EXTENSION(c_atomic)
631 * without risking compile time errors with other compilers. We *could*
632 * define our own ecb_clang_has_feature, but I just can't be bothered to work
633 * around this shit time and again.
634 * #elif defined __clang && __has_feature (cxx_atomic)
635 * // see comment below (stdatomic.h) about the C11 memory model. 789 /* see comment below (stdatomic.h) about the C11 memory model. */
636 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 790 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
637 */ 791 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
792 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
793 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
638 794
639 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 795 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
640 #define ECB_MEMORY_FENCE __sync_synchronize () 796 #define ECB_MEMORY_FENCE __sync_synchronize ()
797 #elif _MSC_VER >= 1500 /* VC++ 2008 */
798 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
799 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
800 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
801 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
802 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
641 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 803 #elif _MSC_VER >= 1400 /* VC++ 2005 */
642 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 804 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
643 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 805 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
644 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 806 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
645 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 807 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
646 #elif defined _WIN32 808 #elif defined _WIN32
647 #include <WinNT.h> 809 #include <WinNT.h>
648 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 810 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
649 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 811 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
650 #include <mbarrier.h> 812 #include <mbarrier.h>
651 #define ECB_MEMORY_FENCE __machine_rw_barrier () 813 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
652 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 814 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
653 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 815 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
816 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
654 #elif __xlC__ 817 #elif __xlC__
655 #define ECB_MEMORY_FENCE __sync () 818 #define ECB_MEMORY_FENCE __sync ()
656 #endif 819 #endif
657#endif 820#endif
658 821
659#ifndef ECB_MEMORY_FENCE 822#ifndef ECB_MEMORY_FENCE
660 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 823 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
661 /* we assume that these memory fences work on all variables/all memory accesses, */ 824 /* we assume that these memory fences work on all variables/all memory accesses, */
662 /* not just C11 atomics and atomic accesses */ 825 /* not just C11 atomics and atomic accesses */
663 #include <stdatomic.h> 826 #include <stdatomic.h>
664 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
665 /* any fence other than seq_cst, which isn't very efficient for us. */
666 /* Why that is, we don't know - either the C11 memory model is quite useless */
667 /* for most usages, or gcc and clang have a bug */
668 /* I *currently* lean towards the latter, and inefficiently implement */
669 /* all three of ecb's fences as a seq_cst fence */
670 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 827 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
828 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
829 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
671 #endif 830 #endif
672#endif 831#endif
673 832
674#ifndef ECB_MEMORY_FENCE 833#ifndef ECB_MEMORY_FENCE
675 #if !ECB_AVOID_PTHREADS 834 #if !ECB_AVOID_PTHREADS
… …
695 854
696#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 855#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
697 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 856 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
698#endif 857#endif
699 858
859#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
860 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
861#endif
862
700/*****************************************************************************/ 863/*****************************************************************************/
701 864
702#if __cplusplus 865#if ECB_CPP
703 #define ecb_inline static inline 866 #define ecb_inline static inline
704#elif ECB_GCC_VERSION(2,5) 867#elif ECB_GCC_VERSION(2,5)
705 #define ecb_inline static __inline__ 868 #define ecb_inline static __inline__
706#elif ECB_C99 869#elif ECB_C99
707 #define ecb_inline static inline 870 #define ecb_inline static inline
… …
721 884
722#define ECB_CONCAT_(a, b) a ## b 885#define ECB_CONCAT_(a, b) a ## b
723#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 886#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
724#define ECB_STRINGIFY_(a) # a 887#define ECB_STRINGIFY_(a) # a
725#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 888#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
889#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
726 890
727#define ecb_function_ ecb_inline 891#define ecb_function_ ecb_inline
728 892
729#if ECB_GCC_VERSION(3,1) 893#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
730 #define ecb_attribute(attrlist) __attribute__(attrlist) 894 #define ecb_attribute(attrlist) __attribute__ (attrlist)
895#else
896 #define ecb_attribute(attrlist)
897#endif
898
899#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
731 #define ecb_is_constant(expr) __builtin_constant_p (expr) 900 #define ecb_is_constant(expr) __builtin_constant_p (expr)
901#else
902 /* possible C11 impl for integral types
903 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
904 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
905
906 #define ecb_is_constant(expr) 0
907#endif
908
909#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
732 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 910 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
911#else
912 #define ecb_expect(expr,value) (expr)
913#endif
914
915#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
733 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 916 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
734#else 917#else
735 #define ecb_attribute(attrlist)
736 #define ecb_is_constant(expr) 0
737 #define ecb_expect(expr,value) (expr)
738 #define ecb_prefetch(addr,rw,locality) 918 #define ecb_prefetch(addr,rw,locality)
739#endif 919#endif
740 920
741/* no emulation for ecb_decltype */ 921/* no emulation for ecb_decltype */
742#if ECB_GCC_VERSION(4,5) 922#if ECB_CPP11
923 // older implementations might have problems with decltype(x)::type, work around it
924 template<class T> struct ecb_decltype_t { typedef T type; };
743 #define ecb_decltype(x) __decltype(x) 925 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
744#elif ECB_GCC_VERSION(3,0) 926#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
745 #define ecb_decltype(x) __typeof(x) 927 #define ecb_decltype(x) __typeof__ (x)
746#endif 928#endif
747 929
930#if _MSC_VER >= 1300
931 #define ecb_deprecated __declspec (deprecated)
932#else
933 #define ecb_deprecated ecb_attribute ((__deprecated__))
934#endif
935
936#if _MSC_VER >= 1500
937 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
938#elif ECB_GCC_VERSION(4,5)
939 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
940#else
941 #define ecb_deprecated_message(msg) ecb_deprecated
942#endif
943
944#if _MSC_VER >= 1400
945 #define ecb_noinline __declspec (noinline)
946#else
748#define ecb_noinline ecb_attribute ((__noinline__)) 947 #define ecb_noinline ecb_attribute ((__noinline__))
948#endif
949
749#define ecb_unused ecb_attribute ((__unused__)) 950#define ecb_unused ecb_attribute ((__unused__))
750#define ecb_const ecb_attribute ((__const__)) 951#define ecb_const ecb_attribute ((__const__))
751#define ecb_pure ecb_attribute ((__pure__)) 952#define ecb_pure ecb_attribute ((__pure__))
752 953
753#if ECB_C11 954#if ECB_C11 || __IBMC_NORETURN
955 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
754 #define ecb_noreturn _Noreturn 956 #define ecb_noreturn _Noreturn
957#elif ECB_CPP11
958 #define ecb_noreturn [[noreturn]]
959#elif _MSC_VER >= 1200
960 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
961 #define ecb_noreturn __declspec (noreturn)
755#else 962#else
756 #define ecb_noreturn ecb_attribute ((__noreturn__)) 963 #define ecb_noreturn ecb_attribute ((__noreturn__))
757#endif 964#endif
758 965
759#if ECB_GCC_VERSION(4,3) 966#if ECB_GCC_VERSION(4,3)
… …
774/* for compatibility to the rest of the world */ 981/* for compatibility to the rest of the world */
775#define ecb_likely(expr) ecb_expect_true (expr) 982#define ecb_likely(expr) ecb_expect_true (expr)
776#define ecb_unlikely(expr) ecb_expect_false (expr) 983#define ecb_unlikely(expr) ecb_expect_false (expr)
777 984
778/* count trailing zero bits and count # of one bits */ 985/* count trailing zero bits and count # of one bits */
779#if ECB_GCC_VERSION(3,4) 986#if ECB_GCC_VERSION(3,4) \
987 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
988 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
989 && ECB_CLANG_BUILTIN(__builtin_popcount))
780 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 990 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
781 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 991 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
782 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 992 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
783 #define ecb_ctz32(x) __builtin_ctz (x) 993 #define ecb_ctz32(x) __builtin_ctz (x)
784 #define ecb_ctz64(x) __builtin_ctzll (x) 994 #define ecb_ctz64(x) __builtin_ctzll (x)
785 #define ecb_popcount32(x) __builtin_popcount (x) 995 #define ecb_popcount32(x) __builtin_popcount (x)
786 /* no popcountll */ 996 /* no popcountll */
787#else 997#else
788 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 998 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
789 ecb_function_ int 999 ecb_function_ ecb_const int
790 ecb_ctz32 (uint32_t x) 1000 ecb_ctz32 (uint32_t x)
791 { 1001 {
1002#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1003 unsigned long r;
1004 _BitScanForward (&r, x);
1005 return (int)r;
1006#else
792 int r = 0; 1007 int r = 0;
793 1008
794 x &= ~x + 1; /* this isolates the lowest bit */ 1009 x &= ~x + 1; /* this isolates the lowest bit */
795 1010
796#if ECB_branchless_on_i386 1011#if ECB_branchless_on_i386
… …
806 if (x & 0xff00ff00) r += 8; 1021 if (x & 0xff00ff00) r += 8;
807 if (x & 0xffff0000) r += 16; 1022 if (x & 0xffff0000) r += 16;
808#endif 1023#endif
809 1024
810 return r; 1025 return r;
1026#endif
811 } 1027 }
812 1028
813 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1029 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
814 ecb_function_ int 1030 ecb_function_ ecb_const int
815 ecb_ctz64 (uint64_t x) 1031 ecb_ctz64 (uint64_t x)
816 { 1032 {
1033#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1034 unsigned long r;
1035 _BitScanForward64 (&r, x);
1036 return (int)r;
1037#else
817 int shift = x & 0xffffffffU ? 0 : 32; 1038 int shift = x & 0xffffffff ? 0 : 32;
818 return ecb_ctz32 (x >> shift) + shift; 1039 return ecb_ctz32 (x >> shift) + shift;
1040#endif
819 } 1041 }
820 1042
821 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1043 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
822 ecb_function_ int 1044 ecb_function_ ecb_const int
823 ecb_popcount32 (uint32_t x) 1045 ecb_popcount32 (uint32_t x)
824 { 1046 {
825 x -= (x >> 1) & 0x55555555; 1047 x -= (x >> 1) & 0x55555555;
826 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1048 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
827 x = ((x >> 4) + x) & 0x0f0f0f0f; 1049 x = ((x >> 4) + x) & 0x0f0f0f0f;
828 x *= 0x01010101; 1050 x *= 0x01010101;
829 1051
830 return x >> 24; 1052 return x >> 24;
831 } 1053 }
832 1054
833 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1055 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
834 ecb_function_ int ecb_ld32 (uint32_t x) 1056 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
835 { 1057 {
1058#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1059 unsigned long r;
1060 _BitScanReverse (&r, x);
1061 return (int)r;
1062#else
836 int r = 0; 1063 int r = 0;
837 1064
838 if (x >> 16) { x >>= 16; r += 16; } 1065 if (x >> 16) { x >>= 16; r += 16; }
839 if (x >> 8) { x >>= 8; r += 8; } 1066 if (x >> 8) { x >>= 8; r += 8; }
840 if (x >> 4) { x >>= 4; r += 4; } 1067 if (x >> 4) { x >>= 4; r += 4; }
841 if (x >> 2) { x >>= 2; r += 2; } 1068 if (x >> 2) { x >>= 2; r += 2; }
842 if (x >> 1) { r += 1; } 1069 if (x >> 1) { r += 1; }
843 1070
844 return r; 1071 return r;
1072#endif
845 } 1073 }
846 1074
847 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1075 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
848 ecb_function_ int ecb_ld64 (uint64_t x) 1076 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
849 { 1077 {
1078#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1079 unsigned long r;
1080 _BitScanReverse64 (&r, x);
1081 return (int)r;
1082#else
850 int r = 0; 1083 int r = 0;
851 1084
852 if (x >> 32) { x >>= 32; r += 32; } 1085 if (x >> 32) { x >>= 32; r += 32; }
853 1086
854 return r + ecb_ld32 (x); 1087 return r + ecb_ld32 (x);
1088#endif
855 } 1089 }
856#endif 1090#endif
857 1091
858ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1092ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
859ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1093ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
860ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1094ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
861ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1095ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
862 1096
863ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1097ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
864ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1098ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
865{ 1099{
866 return ( (x * 0x0802U & 0x22110U) 1100 return ( (x * 0x0802U & 0x22110U)
867 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1101 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
868} 1102}
869 1103
870ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1104ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
871ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1105ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
872{ 1106{
873 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1107 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
874 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1108 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
875 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1109 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
876 x = ( x >> 8 ) | ( x << 8); 1110 x = ( x >> 8 ) | ( x << 8);
877 1111
878 return x; 1112 return x;
879} 1113}
880 1114
881ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1115ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
882ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1116ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
883{ 1117{
884 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1118 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
885 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1119 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
886 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1120 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
887 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1121 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
890 return x; 1124 return x;
891} 1125}
892 1126
893/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1127/* popcount64 is only available on 64 bit cpus as gcc builtin */
894/* so for this version we are lazy */ 1128/* so for this version we are lazy */
895ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1129ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
896ecb_function_ int 1130ecb_function_ ecb_const int
897ecb_popcount64 (uint64_t x) 1131ecb_popcount64 (uint64_t x)
898{ 1132{
899 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1133 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
900} 1134}
901 1135
902ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1136ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
903ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1137ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
904ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1138ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
905ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1139ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
906ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1140ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
907ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1141ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
908ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1142ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
909ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1143ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
910 1144
911ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1145ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
912ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1146ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
913ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1147ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
914ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1148ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
915ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1149ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
916ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1150ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
917ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1151ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
918ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1152ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
919 1153
920#if ECB_GCC_VERSION(4,3) 1154#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1155 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1156 #define ecb_bswap16(x) __builtin_bswap16 (x)
1157 #else
921 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1158 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1159 #endif
922 #define ecb_bswap32(x) __builtin_bswap32 (x) 1160 #define ecb_bswap32(x) __builtin_bswap32 (x)
923 #define ecb_bswap64(x) __builtin_bswap64 (x) 1161 #define ecb_bswap64(x) __builtin_bswap64 (x)
1162#elif _MSC_VER
1163 #include <stdlib.h>
1164 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1165 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1166 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
924#else 1167#else
925 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1168 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
926 ecb_function_ uint16_t 1169 ecb_function_ ecb_const uint16_t
927 ecb_bswap16 (uint16_t x) 1170 ecb_bswap16 (uint16_t x)
928 { 1171 {
929 return ecb_rotl16 (x, 8); 1172 return ecb_rotl16 (x, 8);
930 } 1173 }
931 1174
932 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1175 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
933 ecb_function_ uint32_t 1176 ecb_function_ ecb_const uint32_t
934 ecb_bswap32 (uint32_t x) 1177 ecb_bswap32 (uint32_t x)
935 { 1178 {
936 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1179 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
937 } 1180 }
938 1181
939 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1182 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
940 ecb_function_ uint64_t 1183 ecb_function_ ecb_const uint64_t
941 ecb_bswap64 (uint64_t x) 1184 ecb_bswap64 (uint64_t x)
942 { 1185 {
943 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1186 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
944 } 1187 }
945#endif 1188#endif
946 1189
947#if ECB_GCC_VERSION(4,5) 1190#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
948 #define ecb_unreachable() __builtin_unreachable () 1191 #define ecb_unreachable() __builtin_unreachable ()
949#else 1192#else
950 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1193 /* this seems to work fine, but gcc always emits a warning for it :/ */
951 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1194 ecb_inline ecb_noreturn void ecb_unreachable (void);
952 ecb_inline void ecb_unreachable (void) { } 1195 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
953#endif 1196#endif
954 1197
955/* try to tell the compiler that some condition is definitely true */ 1198/* try to tell the compiler that some condition is definitely true */
956#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1199#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
957 1200
958ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1201ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
959ecb_inline unsigned char 1202ecb_inline ecb_const uint32_t
960ecb_byteorder_helper (void) 1203ecb_byteorder_helper (void)
961{ 1204{
962 /* the union code still generates code under pressure in gcc, */ 1205 /* the union code still generates code under pressure in gcc, */
963 /* but less than using pointers, and always seems to */ 1206 /* but less than using pointers, and always seems to */
964 /* successfully return a constant. */ 1207 /* successfully return a constant. */
965 /* the reason why we have this horrible preprocessor mess */ 1208 /* the reason why we have this horrible preprocessor mess */
966 /* is to avoid it in all cases, at least on common architectures */ 1209 /* is to avoid it in all cases, at least on common architectures */
967 /* or when using a recent enough gcc version (>= 4.6) */ 1210 /* or when using a recent enough gcc version (>= 4.6) */
968#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
969 return 0x44;
970#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1211#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1212 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1213 #define ECB_LITTLE_ENDIAN 1
971 return 0x44; 1214 return 0x44332211;
972#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1215#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1216 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1217 #define ECB_BIG_ENDIAN 1
973 return 0x11; 1218 return 0x11223344;
974#else 1219#else
975 union 1220 union
976 { 1221 {
1222 uint8_t c[4];
977 uint32_t i; 1223 uint32_t u;
978 uint8_t c;
979 } u = { 0x11223344 }; 1224 } u = { 0x11, 0x22, 0x33, 0x44 };
980 return u.c; 1225 return u.u;
981#endif 1226#endif
982} 1227}
983 1228
984ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1229ecb_inline ecb_const ecb_bool ecb_big_endian (void);
985ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1230ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
986ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1231ecb_inline ecb_const ecb_bool ecb_little_endian (void);
987ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1232ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
988 1233
989#if ECB_GCC_VERSION(3,0) || ECB_C99 1234#if ECB_GCC_VERSION(3,0) || ECB_C99
990 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1235 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
991#else 1236#else
992 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1237 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
993#endif 1238#endif
994 1239
995#if __cplusplus 1240#if ECB_CPP
996 template<typename T> 1241 template<typename T>
997 static inline T ecb_div_rd (T val, T div) 1242 static inline T ecb_div_rd (T val, T div)
998 { 1243 {
999 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1244 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1000 } 1245 }
… …
1017 } 1262 }
1018#else 1263#else
1019 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1264 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1020#endif 1265#endif
1021 1266
1267ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1268ecb_function_ ecb_const uint32_t
1269ecb_binary16_to_binary32 (uint32_t x)
1270{
1271 unsigned int s = (x & 0x8000) << (31 - 15);
1272 int e = (x >> 10) & 0x001f;
1273 unsigned int m = x & 0x03ff;
1274
1275 if (ecb_expect_false (e == 31))
1276 /* infinity or NaN */
1277 e = 255 - (127 - 15);
1278 else if (ecb_expect_false (!e))
1279 {
1280 if (ecb_expect_true (!m))
1281 /* zero, handled by code below by forcing e to 0 */
1282 e = 0 - (127 - 15);
1283 else
1284 {
1285 /* subnormal, renormalise */
1286 unsigned int s = 10 - ecb_ld32 (m);
1287
1288 m = (m << s) & 0x3ff; /* mask implicit bit */
1289 e -= s - 1;
1290 }
1291 }
1292
1293 /* e and m now are normalised, or zero, (or inf or nan) */
1294 e += 127 - 15;
1295
1296 return s | (e << 23) | (m << (23 - 10));
1297}
1298
1299ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1300ecb_function_ ecb_const uint16_t
1301ecb_binary32_to_binary16 (uint32_t x)
1302{
1303 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1304 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1305 unsigned int m = x & 0x007fffff;
1306
1307 x &= 0x7fffffff;
1308
1309 /* if it's within range of binary16 normals, use fast path */
1310 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1311 {
1312 /* mantissa round-to-even */
1313 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1314
1315 /* handle overflow */
1316 if (ecb_expect_false (m >= 0x00800000))
1317 {
1318 m >>= 1;
1319 e += 1;
1320 }
1321
1322 return s | (e << 10) | (m >> (23 - 10));
1323 }
1324
1325 /* handle large numbers and infinity */
1326 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1327 return s | 0x7c00;
1328
1329 /* handle zero, subnormals and small numbers */
1330 if (ecb_expect_true (x < 0x38800000))
1331 {
1332 /* zero */
1333 if (ecb_expect_true (!x))
1334 return s;
1335
1336 /* handle subnormals */
1337
1338 /* too small, will be zero */
1339 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1340 return s;
1341
1342 m |= 0x00800000; /* make implicit bit explicit */
1343
1344 /* very tricky - we need to round to the nearest e (+10) bit value */
1345 {
1346 unsigned int bits = 14 - e;
1347 unsigned int half = (1 << (bits - 1)) - 1;
1348 unsigned int even = (m >> bits) & 1;
1349
1350 /* if this overflows, we will end up with a normalised number */
1351 m = (m + half + even) >> bits;
1352 }
1353
1354 return s | m;
1355 }
1356
1357 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1358 m >>= 13;
1359
1360 return s | 0x7c00 | m | !m;
1361}
1362
1022/*******************************************************************************/ 1363/*******************************************************************************/
1023/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1364/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1024 1365
1025/* basically, everything uses "ieee pure-endian" floating point numbers */ 1366/* basically, everything uses "ieee pure-endian" floating point numbers */
1026/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1367/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1027#if 0 \ 1368#if 0 \
1028 || __i386 || __i386__ \ 1369 || __i386 || __i386__ \
1029 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1370 || ECB_GCC_AMD64 \
1030 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1371 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1031 || defined __arm__ && defined __ARM_EABI__ \
1032 || defined __s390__ || defined __s390x__ \ 1372 || defined __s390__ || defined __s390x__ \
1033 || defined __mips__ \ 1373 || defined __mips__ \
1034 || defined __alpha__ \ 1374 || defined __alpha__ \
1035 || defined __hppa__ \ 1375 || defined __hppa__ \
1036 || defined __ia64__ \ 1376 || defined __ia64__ \
1377 || defined __m68k__ \
1378 || defined __m88k__ \
1379 || defined __sh__ \
1037 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1380 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1381 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1382 || defined __aarch64__
1038 #define ECB_STDFP 1 1383 #define ECB_STDFP 1
1039 #include <string.h> /* for memcpy */ 1384 #include <string.h> /* for memcpy */
1040#else 1385#else
1041 #define ECB_STDFP 0 1386 #define ECB_STDFP 0
1042 #include <math.h> /* for frexp*, ldexp* */
1043#endif 1387#endif
1044 1388
1045#ifndef ECB_NO_LIBM 1389#ifndef ECB_NO_LIBM
1046 1390
1391 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1392
1393 /* only the oldest of old doesn't have this one. solaris. */
1394 #ifdef INFINITY
1395 #define ECB_INFINITY INFINITY
1396 #else
1397 #define ECB_INFINITY HUGE_VAL
1398 #endif
1399
1400 #ifdef NAN
1401 #define ECB_NAN NAN
1402 #else
1403 #define ECB_NAN ECB_INFINITY
1404 #endif
1405
1406 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1407 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1408 #define ecb_frexpf(x,e) frexpf ((x), (e))
1409 #else
1410 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1411 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1412 #endif
1413
1047 /* convert a float to ieee single/binary32 */ 1414 /* convert a float to ieee single/binary32 */
1048 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1415 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1049 ecb_function_ uint32_t 1416 ecb_function_ ecb_const uint32_t
1050 ecb_float_to_binary32 (float x) 1417 ecb_float_to_binary32 (float x)
1051 { 1418 {
1052 uint32_t r; 1419 uint32_t r;
1053 1420
1054 #if ECB_STDFP 1421 #if ECB_STDFP
… …
1061 if (x == 0e0f ) return 0x00000000U; 1428 if (x == 0e0f ) return 0x00000000U;
1062 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1429 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1063 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1430 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1064 if (x != x ) return 0x7fbfffffU; 1431 if (x != x ) return 0x7fbfffffU;
1065 1432
1066 m = frexpf (x, &e) * 0x1000000U; 1433 m = ecb_frexpf (x, &e) * 0x1000000U;
1067 1434
1068 r = m & 0x80000000U; 1435 r = m & 0x80000000U;
1069 1436
1070 if (r) 1437 if (r)
1071 m = -m; 1438 m = -m;
… …
1083 1450
1084 return r; 1451 return r;
1085 } 1452 }
1086 1453
1087 /* converts an ieee single/binary32 to a float */ 1454 /* converts an ieee single/binary32 to a float */
1088 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1455 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1089 ecb_function_ float 1456 ecb_function_ ecb_const float
1090 ecb_binary32_to_float (uint32_t x) 1457 ecb_binary32_to_float (uint32_t x)
1091 { 1458 {
1092 float r; 1459 float r;
1093 1460
1094 #if ECB_STDFP 1461 #if ECB_STDFP
… …
1104 x |= 0x800000U; 1471 x |= 0x800000U;
1105 else 1472 else
1106 e = 1; 1473 e = 1;
1107 1474
1108 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1475 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1109 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1476 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1110 1477
1111 r = neg ? -r : r; 1478 r = neg ? -r : r;
1112 #endif 1479 #endif
1113 1480
1114 return r; 1481 return r;
1115 } 1482 }
1116 1483
1117 /* convert a double to ieee double/binary64 */ 1484 /* convert a double to ieee double/binary64 */
1118 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1485 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1119 ecb_function_ uint64_t 1486 ecb_function_ ecb_const uint64_t
1120 ecb_double_to_binary64 (double x) 1487 ecb_double_to_binary64 (double x)
1121 { 1488 {
1122 uint64_t r; 1489 uint64_t r;
1123 1490
1124 #if ECB_STDFP 1491 #if ECB_STDFP
… …
1153 1520
1154 return r; 1521 return r;
1155 } 1522 }
1156 1523
1157 /* converts an ieee double/binary64 to a double */ 1524 /* converts an ieee double/binary64 to a double */
1158 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1525 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1159 ecb_function_ double 1526 ecb_function_ ecb_const double
1160 ecb_binary64_to_double (uint64_t x) 1527 ecb_binary64_to_double (uint64_t x)
1161 { 1528 {
1162 double r; 1529 double r;
1163 1530
1164 #if ECB_STDFP 1531 #if ECB_STDFP
… …
1182 #endif 1549 #endif
1183 1550
1184 return r; 1551 return r;
1185 } 1552 }
1186 1553
1554 /* convert a float to ieee half/binary16 */
1555 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1556 ecb_function_ ecb_const uint16_t
1557 ecb_float_to_binary16 (float x)
1558 {
1559 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1560 }
1561
1562 /* convert an ieee half/binary16 to float */
1563 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1564 ecb_function_ ecb_const float
1565 ecb_binary16_to_float (uint16_t x)
1566 {
1567 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1568 }
1569
1187#endif 1570#endif
1188 1571
1189#endif 1572#endif
1190 1573
1191/* ECB.H END */ 1574/* ECB.H END */
1192 1575
1193#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1576#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1194/* if your architecture doesn't need memory fences, e.g. because it is 1577/* if your architecture doesn't need memory fences, e.g. because it is
1195 * single-cpu/core, or if you use libev in a project that doesn't use libev 1578 * single-cpu/core, or if you use libev in a project that doesn't use libev
1196 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1579 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1197 * libev, in which cases the memory fences become nops. 1580 * libev, in which cases the memory fences become nops.
1198 * alternatively, you can remove this #error and link against libpthread, 1581 * alternatively, you can remove this #error and link against libpthread,
1199 * which will then provide the memory fences. 1582 * which will then provide the memory fences.
1200 */ 1583 */
1201# error "memory fences not defined for your architecture, please report" 1584# error "memory fences not defined for your architecture, please report"
… …
1205# define ECB_MEMORY_FENCE do { } while (0) 1588# define ECB_MEMORY_FENCE do { } while (0)
1206# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1589# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1207# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1590# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1208#endif 1591#endif
1209 1592
1210#define expect_false(cond) ecb_expect_false (cond)
1211#define expect_true(cond) ecb_expect_true (cond)
1212#define noinline ecb_noinline
1213
1214#define inline_size ecb_inline 1593#define inline_size ecb_inline
1215 1594
1216#if EV_FEATURE_CODE 1595#if EV_FEATURE_CODE
1217# define inline_speed ecb_inline 1596# define inline_speed ecb_inline
1218#else 1597#else
1219# define inline_speed static noinline 1598# define inline_speed ecb_noinline static
1220#endif 1599#endif
1600
1601/*****************************************************************************/
1602/* raw syscall wrappers */
1603
1604#if EV_NEED_SYSCALL
1605
1606#include <sys/syscall.h>
1607
1608/*
1609 * define some syscall wrappers for common architectures
1610 * this is mostly for nice looks during debugging, not performance.
1611 * our syscalls return < 0, not == -1, on error. which is good
1612 * enough for linux aio.
1613 * TODO: arm is also common nowadays, maybe even mips and x86
1614 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1615 */
1616#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1617 /* the costly errno access probably kills this for size optimisation */
1618
1619 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1620 ({ \
1621 long res; \
1622 register unsigned long r6 __asm__ ("r9" ); \
1623 register unsigned long r5 __asm__ ("r8" ); \
1624 register unsigned long r4 __asm__ ("r10"); \
1625 register unsigned long r3 __asm__ ("rdx"); \
1626 register unsigned long r2 __asm__ ("rsi"); \
1627 register unsigned long r1 __asm__ ("rdi"); \
1628 if (narg >= 6) r6 = (unsigned long)(arg6); \
1629 if (narg >= 5) r5 = (unsigned long)(arg5); \
1630 if (narg >= 4) r4 = (unsigned long)(arg4); \
1631 if (narg >= 3) r3 = (unsigned long)(arg3); \
1632 if (narg >= 2) r2 = (unsigned long)(arg2); \
1633 if (narg >= 1) r1 = (unsigned long)(arg1); \
1634 __asm__ __volatile__ ( \
1635 "syscall\n\t" \
1636 : "=a" (res) \
1637 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1638 : "cc", "r11", "cx", "memory"); \
1639 errno = -res; \
1640 res; \
1641 })
1642
1643#endif
1644
1645#ifdef ev_syscall
1646 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1647 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1648 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1649 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1650 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1651 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1652 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1653#else
1654 #define ev_syscall0(nr) syscall (nr)
1655 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1656 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1657 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1658 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1659 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1660 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1661#endif
1662
1663#endif
1664
1665/*****************************************************************************/
1221 1666
1222#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1667#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1223 1668
1224#if EV_MINPRI == EV_MAXPRI 1669#if EV_MINPRI == EV_MAXPRI
1225# define ABSPRI(w) (((W)w), 0) 1670# define ABSPRI(w) (((W)w), 0)
1226#else 1671#else
1227# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1672# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1228#endif 1673#endif
1229 1674
1230#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1675#define EMPTY /* required for microsofts broken pseudo-c compiler */
1231#define EMPTY2(a,b) /* used to suppress some warnings */
1232 1676
1233typedef ev_watcher *W; 1677typedef ev_watcher *W;
1234typedef ev_watcher_list *WL; 1678typedef ev_watcher_list *WL;
1235typedef ev_watcher_time *WT; 1679typedef ev_watcher_time *WT;
1236 1680
… …
1261# include "ev_win32.c" 1705# include "ev_win32.c"
1262#endif 1706#endif
1263 1707
1264/*****************************************************************************/ 1708/*****************************************************************************/
1265 1709
1710#if EV_USE_LINUXAIO
1711# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1712#endif
1713
1266/* define a suitable floor function (only used by periodics atm) */ 1714/* define a suitable floor function (only used by periodics atm) */
1267 1715
1268#if EV_USE_FLOOR 1716#if EV_USE_FLOOR
1269# include <math.h> 1717# include <math.h>
1270# define ev_floor(v) floor (v) 1718# define ev_floor(v) floor (v)
1271#else 1719#else
1272 1720
1273#include <float.h> 1721#include <float.h>
1274 1722
1275/* a floor() replacement function, should be independent of ev_tstamp type */ 1723/* a floor() replacement function, should be independent of ev_tstamp type */
1724ecb_noinline
1276static ev_tstamp noinline 1725static ev_tstamp
1277ev_floor (ev_tstamp v) 1726ev_floor (ev_tstamp v)
1278{ 1727{
1279 /* the choice of shift factor is not terribly important */ 1728 /* the choice of shift factor is not terribly important */
1280#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1729#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1281 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1730 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1282#else 1731#else
1283 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1732 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1284#endif 1733#endif
1285 1734
1735 /* special treatment for negative arguments */
1736 if (ecb_expect_false (v < 0.))
1737 {
1738 ev_tstamp f = -ev_floor (-v);
1739
1740 return f - (f == v ? 0 : 1);
1741 }
1742
1286 /* argument too large for an unsigned long? */ 1743 /* argument too large for an unsigned long? then reduce it */
1287 if (expect_false (v >= shift)) 1744 if (ecb_expect_false (v >= shift))
1288 { 1745 {
1289 ev_tstamp f; 1746 ev_tstamp f;
1290 1747
1291 if (v == v - 1.) 1748 if (v == v - 1.)
1292 return v; /* very large number */ 1749 return v; /* very large numbers are assumed to be integer */
1293 1750
1294 f = shift * ev_floor (v * (1. / shift)); 1751 f = shift * ev_floor (v * (1. / shift));
1295 return f + ev_floor (v - f); 1752 return f + ev_floor (v - f);
1296 } 1753 }
1297 1754
1298 /* special treatment for negative args? */
1299 if (expect_false (v < 0.))
1300 {
1301 ev_tstamp f = -ev_floor (-v);
1302
1303 return f - (f == v ? 0 : 1);
1304 }
1305
1306 /* fits into an unsigned long */ 1755 /* fits into an unsigned long */
1307 return (unsigned long)v; 1756 return (unsigned long)v;
1308} 1757}
1309 1758
1310#endif 1759#endif
… …
1313 1762
1314#ifdef __linux 1763#ifdef __linux
1315# include <sys/utsname.h> 1764# include <sys/utsname.h>
1316#endif 1765#endif
1317 1766
1318static unsigned int noinline ecb_cold 1767ecb_noinline ecb_cold
1768static unsigned int
1319ev_linux_version (void) 1769ev_linux_version (void)
1320{ 1770{
1321#ifdef __linux 1771#ifdef __linux
1322 unsigned int v = 0; 1772 unsigned int v = 0;
1323 struct utsname buf; 1773 struct utsname buf;
… …
1352} 1802}
1353 1803
1354/*****************************************************************************/ 1804/*****************************************************************************/
1355 1805
1356#if EV_AVOID_STDIO 1806#if EV_AVOID_STDIO
1357static void noinline ecb_cold 1807ecb_noinline ecb_cold
1808static void
1358ev_printerr (const char *msg) 1809ev_printerr (const char *msg)
1359{ 1810{
1360 write (STDERR_FILENO, msg, strlen (msg)); 1811 write (STDERR_FILENO, msg, strlen (msg));
1361} 1812}
1362#endif 1813#endif
1363 1814
1364static void (*syserr_cb)(const char *msg) EV_THROW; 1815static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1365 1816
1366void ecb_cold 1817ecb_cold
1818void
1367ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1819ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1368{ 1820{
1369 syserr_cb = cb; 1821 syserr_cb = cb;
1370} 1822}
1371 1823
1372static void noinline ecb_cold 1824ecb_noinline ecb_cold
1825static void
1373ev_syserr (const char *msg) 1826ev_syserr (const char *msg)
1374{ 1827{
1375 if (!msg) 1828 if (!msg)
1376 msg = "(libev) system error"; 1829 msg = "(libev) system error";
1377 1830
… …
1390 abort (); 1843 abort ();
1391 } 1844 }
1392} 1845}
1393 1846
1394static void * 1847static void *
1395ev_realloc_emul (void *ptr, long size) EV_THROW 1848ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1396{ 1849{
1397 /* some systems, notably openbsd and darwin, fail to properly 1850 /* some systems, notably openbsd and darwin, fail to properly
1398 * implement realloc (x, 0) (as required by both ansi c-89 and 1851 * implement realloc (x, 0) (as required by both ansi c-89 and
1399 * the single unix specification, so work around them here. 1852 * the single unix specification, so work around them here.
1400 * recently, also (at least) fedora and debian started breaking it, 1853 * recently, also (at least) fedora and debian started breaking it,
… …
1406 1859
1407 free (ptr); 1860 free (ptr);
1408 return 0; 1861 return 0;
1409} 1862}
1410 1863
1411static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1864static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1412 1865
1413void ecb_cold 1866ecb_cold
1867void
1414ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1868ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1415{ 1869{
1416 alloc = cb; 1870 alloc = cb;
1417} 1871}
1418 1872
1419inline_speed void * 1873inline_speed void *
… …
1446typedef struct 1900typedef struct
1447{ 1901{
1448 WL head; 1902 WL head;
1449 unsigned char events; /* the events watched for */ 1903 unsigned char events; /* the events watched for */
1450 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1904 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1451 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1905 unsigned char emask; /* some backends store the actual kernel mask in here */
1452 unsigned char unused; 1906 unsigned char eflags; /* flags field for use by backends */
1453#if EV_USE_EPOLL 1907#if EV_USE_EPOLL
1454 unsigned int egen; /* generation counter to counter epoll bugs */ 1908 unsigned int egen; /* generation counter to counter epoll bugs */
1455#endif 1909#endif
1456#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1910#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1457 SOCKET handle; 1911 SOCKET handle;
… …
1521 static int ev_default_loop_ptr; 1975 static int ev_default_loop_ptr;
1522 1976
1523#endif 1977#endif
1524 1978
1525#if EV_FEATURE_API 1979#if EV_FEATURE_API
1526# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1980# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1527# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 1981# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1528# define EV_INVOKE_PENDING invoke_cb (EV_A) 1982# define EV_INVOKE_PENDING invoke_cb (EV_A)
1529#else 1983#else
1530# define EV_RELEASE_CB (void)0 1984# define EV_RELEASE_CB (void)0
1531# define EV_ACQUIRE_CB (void)0 1985# define EV_ACQUIRE_CB (void)0
1532# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1986# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1536 1990
1537/*****************************************************************************/ 1991/*****************************************************************************/
1538 1992
1539#ifndef EV_HAVE_EV_TIME 1993#ifndef EV_HAVE_EV_TIME
1540ev_tstamp 1994ev_tstamp
1541ev_time (void) EV_THROW 1995ev_time (void) EV_NOEXCEPT
1542{ 1996{
1543#if EV_USE_REALTIME 1997#if EV_USE_REALTIME
1544 if (expect_true (have_realtime)) 1998 if (ecb_expect_true (have_realtime))
1545 { 1999 {
1546 struct timespec ts; 2000 struct timespec ts;
1547 clock_gettime (CLOCK_REALTIME, &ts); 2001 clock_gettime (CLOCK_REALTIME, &ts);
1548 return ts.tv_sec + ts.tv_nsec * 1e-9; 2002 return EV_TS_GET (ts);
1549 } 2003 }
1550#endif 2004#endif
1551 2005
1552 struct timeval tv; 2006 struct timeval tv;
1553 gettimeofday (&tv, 0); 2007 gettimeofday (&tv, 0);
1554 return tv.tv_sec + tv.tv_usec * 1e-6; 2008 return EV_TV_GET (tv);
1555} 2009}
1556#endif 2010#endif
1557 2011
1558inline_size ev_tstamp 2012inline_size ev_tstamp
1559get_clock (void) 2013get_clock (void)
1560{ 2014{
1561#if EV_USE_MONOTONIC 2015#if EV_USE_MONOTONIC
1562 if (expect_true (have_monotonic)) 2016 if (ecb_expect_true (have_monotonic))
1563 { 2017 {
1564 struct timespec ts; 2018 struct timespec ts;
1565 clock_gettime (CLOCK_MONOTONIC, &ts); 2019 clock_gettime (CLOCK_MONOTONIC, &ts);
1566 return ts.tv_sec + ts.tv_nsec * 1e-9; 2020 return EV_TS_GET (ts);
1567 } 2021 }
1568#endif 2022#endif
1569 2023
1570 return ev_time (); 2024 return ev_time ();
1571} 2025}
1572 2026
1573#if EV_MULTIPLICITY 2027#if EV_MULTIPLICITY
1574ev_tstamp 2028ev_tstamp
1575ev_now (EV_P) EV_THROW 2029ev_now (EV_P) EV_NOEXCEPT
1576{ 2030{
1577 return ev_rt_now; 2031 return ev_rt_now;
1578} 2032}
1579#endif 2033#endif
1580 2034
1581void 2035void
1582ev_sleep (ev_tstamp delay) EV_THROW 2036ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1583{ 2037{
1584 if (delay > 0.) 2038 if (delay > 0.)
1585 { 2039 {
1586#if EV_USE_NANOSLEEP 2040#if EV_USE_NANOSLEEP
1587 struct timespec ts; 2041 struct timespec ts;
1588 2042
1589 EV_TS_SET (ts, delay); 2043 EV_TS_SET (ts, delay);
1590 nanosleep (&ts, 0); 2044 nanosleep (&ts, 0);
1591#elif defined _WIN32 2045#elif defined _WIN32
2046 /* maybe this should round up, as ms is very low resolution */
2047 /* compared to select (µs) or nanosleep (ns) */
1592 Sleep ((unsigned long)(delay * 1e3)); 2048 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1593#else 2049#else
1594 struct timeval tv; 2050 struct timeval tv;
1595 2051
1596 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2052 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1597 /* something not guaranteed by newer posix versions, but guaranteed */ 2053 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1627 } 2083 }
1628 2084
1629 return ncur; 2085 return ncur;
1630} 2086}
1631 2087
1632static void * noinline ecb_cold 2088ecb_noinline ecb_cold
2089static void *
1633array_realloc (int elem, void *base, int *cur, int cnt) 2090array_realloc (int elem, void *base, int *cur, int cnt)
1634{ 2091{
1635 *cur = array_nextsize (elem, *cur, cnt); 2092 *cur = array_nextsize (elem, *cur, cnt);
1636 return ev_realloc (base, elem * *cur); 2093 return ev_realloc (base, elem * *cur);
1637} 2094}
1638 2095
2096#define array_needsize_noinit(base,offset,count)
2097
1639#define array_init_zero(base,count) \ 2098#define array_needsize_zerofill(base,offset,count) \
1640 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2099 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1641 2100
1642#define array_needsize(type,base,cur,cnt,init) \ 2101#define array_needsize(type,base,cur,cnt,init) \
1643 if (expect_false ((cnt) > (cur))) \ 2102 if (ecb_expect_false ((cnt) > (cur))) \
1644 { \ 2103 { \
1645 int ecb_unused ocur_ = (cur); \ 2104 ecb_unused int ocur_ = (cur); \
1646 (base) = (type *)array_realloc \ 2105 (base) = (type *)array_realloc \
1647 (sizeof (type), (base), &(cur), (cnt)); \ 2106 (sizeof (type), (base), &(cur), (cnt)); \
1648 init ((base) + (ocur_), (cur) - ocur_); \ 2107 init ((base), ocur_, ((cur) - ocur_)); \
1649 } 2108 }
1650 2109
1651#if 0 2110#if 0
1652#define array_slim(type,stem) \ 2111#define array_slim(type,stem) \
1653 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2112 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1662 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2121 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1663 2122
1664/*****************************************************************************/ 2123/*****************************************************************************/
1665 2124
1666/* dummy callback for pending events */ 2125/* dummy callback for pending events */
1667static void noinline 2126ecb_noinline
2127static void
1668pendingcb (EV_P_ ev_prepare *w, int revents) 2128pendingcb (EV_P_ ev_prepare *w, int revents)
1669{ 2129{
1670} 2130}
1671 2131
1672void noinline 2132ecb_noinline
2133void
1673ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2134ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1674{ 2135{
1675 W w_ = (W)w; 2136 W w_ = (W)w;
1676 int pri = ABSPRI (w_); 2137 int pri = ABSPRI (w_);
1677 2138
1678 if (expect_false (w_->pending)) 2139 if (ecb_expect_false (w_->pending))
1679 pendings [pri][w_->pending - 1].events |= revents; 2140 pendings [pri][w_->pending - 1].events |= revents;
1680 else 2141 else
1681 { 2142 {
1682 w_->pending = ++pendingcnt [pri]; 2143 w_->pending = ++pendingcnt [pri];
1683 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2144 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1684 pendings [pri][w_->pending - 1].w = w_; 2145 pendings [pri][w_->pending - 1].w = w_;
1685 pendings [pri][w_->pending - 1].events = revents; 2146 pendings [pri][w_->pending - 1].events = revents;
1686 } 2147 }
1687 2148
1688 pendingpri = NUMPRI - 1; 2149 pendingpri = NUMPRI - 1;
1689} 2150}
1690 2151
1691inline_speed void 2152inline_speed void
1692feed_reverse (EV_P_ W w) 2153feed_reverse (EV_P_ W w)
1693{ 2154{
1694 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2155 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1695 rfeeds [rfeedcnt++] = w; 2156 rfeeds [rfeedcnt++] = w;
1696} 2157}
1697 2158
1698inline_size void 2159inline_size void
1699feed_reverse_done (EV_P_ int revents) 2160feed_reverse_done (EV_P_ int revents)
… …
1734inline_speed void 2195inline_speed void
1735fd_event (EV_P_ int fd, int revents) 2196fd_event (EV_P_ int fd, int revents)
1736{ 2197{
1737 ANFD *anfd = anfds + fd; 2198 ANFD *anfd = anfds + fd;
1738 2199
1739 if (expect_true (!anfd->reify)) 2200 if (ecb_expect_true (!anfd->reify))
1740 fd_event_nocheck (EV_A_ fd, revents); 2201 fd_event_nocheck (EV_A_ fd, revents);
1741} 2202}
1742 2203
1743void 2204void
1744ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2205ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1745{ 2206{
1746 if (fd >= 0 && fd < anfdmax) 2207 if (fd >= 0 && fd < anfdmax)
1747 fd_event_nocheck (EV_A_ fd, revents); 2208 fd_event_nocheck (EV_A_ fd, revents);
1748} 2209}
1749 2210
… …
1786 ev_io *w; 2247 ev_io *w;
1787 2248
1788 unsigned char o_events = anfd->events; 2249 unsigned char o_events = anfd->events;
1789 unsigned char o_reify = anfd->reify; 2250 unsigned char o_reify = anfd->reify;
1790 2251
1791 anfd->reify = 0; 2252 anfd->reify = 0;
1792 2253
1793 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2254 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1794 { 2255 {
1795 anfd->events = 0; 2256 anfd->events = 0;
1796 2257
1797 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2258 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1798 anfd->events |= (unsigned char)w->events; 2259 anfd->events |= (unsigned char)w->events;
… …
1807 2268
1808 fdchangecnt = 0; 2269 fdchangecnt = 0;
1809} 2270}
1810 2271
1811/* something about the given fd changed */ 2272/* something about the given fd changed */
1812inline_size void 2273inline_size
2274void
1813fd_change (EV_P_ int fd, int flags) 2275fd_change (EV_P_ int fd, int flags)
1814{ 2276{
1815 unsigned char reify = anfds [fd].reify; 2277 unsigned char reify = anfds [fd].reify;
1816 anfds [fd].reify |= flags; 2278 anfds [fd].reify |= flags;
1817 2279
1818 if (expect_true (!reify)) 2280 if (ecb_expect_true (!reify))
1819 { 2281 {
1820 ++fdchangecnt; 2282 ++fdchangecnt;
1821 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2283 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1822 fdchanges [fdchangecnt - 1] = fd; 2284 fdchanges [fdchangecnt - 1] = fd;
1823 } 2285 }
1824} 2286}
1825 2287
1826/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2288/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1827inline_speed void ecb_cold 2289inline_speed ecb_cold void
1828fd_kill (EV_P_ int fd) 2290fd_kill (EV_P_ int fd)
1829{ 2291{
1830 ev_io *w; 2292 ev_io *w;
1831 2293
1832 while ((w = (ev_io *)anfds [fd].head)) 2294 while ((w = (ev_io *)anfds [fd].head))
… …
1835 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2297 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1836 } 2298 }
1837} 2299}
1838 2300
1839/* check whether the given fd is actually valid, for error recovery */ 2301/* check whether the given fd is actually valid, for error recovery */
1840inline_size int ecb_cold 2302inline_size ecb_cold int
1841fd_valid (int fd) 2303fd_valid (int fd)
1842{ 2304{
1843#ifdef _WIN32 2305#ifdef _WIN32
1844 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2306 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1845#else 2307#else
1846 return fcntl (fd, F_GETFD) != -1; 2308 return fcntl (fd, F_GETFD) != -1;
1847#endif 2309#endif
1848} 2310}
1849 2311
1850/* called on EBADF to verify fds */ 2312/* called on EBADF to verify fds */
1851static void noinline ecb_cold 2313ecb_noinline ecb_cold
2314static void
1852fd_ebadf (EV_P) 2315fd_ebadf (EV_P)
1853{ 2316{
1854 int fd; 2317 int fd;
1855 2318
1856 for (fd = 0; fd < anfdmax; ++fd) 2319 for (fd = 0; fd < anfdmax; ++fd)
… …
1858 if (!fd_valid (fd) && errno == EBADF) 2321 if (!fd_valid (fd) && errno == EBADF)
1859 fd_kill (EV_A_ fd); 2322 fd_kill (EV_A_ fd);
1860} 2323}
1861 2324
1862/* called on ENOMEM in select/poll to kill some fds and retry */ 2325/* called on ENOMEM in select/poll to kill some fds and retry */
1863static void noinline ecb_cold 2326ecb_noinline ecb_cold
2327static void
1864fd_enomem (EV_P) 2328fd_enomem (EV_P)
1865{ 2329{
1866 int fd; 2330 int fd;
1867 2331
1868 for (fd = anfdmax; fd--; ) 2332 for (fd = anfdmax; fd--; )
… …
1872 break; 2336 break;
1873 } 2337 }
1874} 2338}
1875 2339
1876/* usually called after fork if backend needs to re-arm all fds from scratch */ 2340/* usually called after fork if backend needs to re-arm all fds from scratch */
1877static void noinline 2341ecb_noinline
2342static void
1878fd_rearm_all (EV_P) 2343fd_rearm_all (EV_P)
1879{ 2344{
1880 int fd; 2345 int fd;
1881 2346
1882 for (fd = 0; fd < anfdmax; ++fd) 2347 for (fd = 0; fd < anfdmax; ++fd)
… …
1935 ev_tstamp minat; 2400 ev_tstamp minat;
1936 ANHE *minpos; 2401 ANHE *minpos;
1937 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2402 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
1938 2403
1939 /* find minimum child */ 2404 /* find minimum child */
1940 if (expect_true (pos + DHEAP - 1 < E)) 2405 if (ecb_expect_true (pos + DHEAP - 1 < E))
1941 { 2406 {
1942 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2407 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1943 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2408 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1944 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2409 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1945 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2410 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1946 } 2411 }
1947 else if (pos < E) 2412 else if (pos < E)
1948 { 2413 {
1949 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2414 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
1950 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2415 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
1951 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2416 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
1952 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2417 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
1953 } 2418 }
1954 else 2419 else
1955 break; 2420 break;
1956 2421
1957 if (ANHE_at (he) <= minat) 2422 if (ANHE_at (he) <= minat)
… …
1965 2430
1966 heap [k] = he; 2431 heap [k] = he;
1967 ev_active (ANHE_w (he)) = k; 2432 ev_active (ANHE_w (he)) = k;
1968} 2433}
1969 2434
1970#else /* 4HEAP */ 2435#else /* not 4HEAP */
1971 2436
1972#define HEAP0 1 2437#define HEAP0 1
1973#define HPARENT(k) ((k) >> 1) 2438#define HPARENT(k) ((k) >> 1)
1974#define UPHEAP_DONE(p,k) (!(p)) 2439#define UPHEAP_DONE(p,k) (!(p))
1975 2440
… …
2063 2528
2064/*****************************************************************************/ 2529/*****************************************************************************/
2065 2530
2066#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2531#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2067 2532
2068static void noinline ecb_cold 2533ecb_noinline ecb_cold
2534static void
2069evpipe_init (EV_P) 2535evpipe_init (EV_P)
2070{ 2536{
2071 if (!ev_is_active (&pipe_w)) 2537 if (!ev_is_active (&pipe_w))
2072 { 2538 {
2073 int fds [2]; 2539 int fds [2];
… …
2084 while (pipe (fds)) 2550 while (pipe (fds))
2085 ev_syserr ("(libev) error creating signal/async pipe"); 2551 ev_syserr ("(libev) error creating signal/async pipe");
2086 2552
2087 fd_intern (fds [0]); 2553 fd_intern (fds [0]);
2088 } 2554 }
2089
2090 fd_intern (fds [1]);
2091 2555
2092 evpipe [0] = fds [0]; 2556 evpipe [0] = fds [0];
2093 2557
2094 if (evpipe [1] < 0) 2558 if (evpipe [1] < 0)
2095 evpipe [1] = fds [1]; /* first call, set write fd */ 2559 evpipe [1] = fds [1]; /* first call, set write fd */
… …
2102 2566
2103 dup2 (fds [1], evpipe [1]); 2567 dup2 (fds [1], evpipe [1]);
2104 close (fds [1]); 2568 close (fds [1]);
2105 } 2569 }
2106 2570
2571 fd_intern (evpipe [1]);
2572
2107 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2573 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2108 ev_io_start (EV_A_ &pipe_w); 2574 ev_io_start (EV_A_ &pipe_w);
2109 ev_unref (EV_A); /* watcher should not keep loop alive */ 2575 ev_unref (EV_A); /* watcher should not keep loop alive */
2110 } 2576 }
2111} 2577}
… …
2113inline_speed void 2579inline_speed void
2114evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2580evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2115{ 2581{
2116 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2582 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2117 2583
2118 if (expect_true (*flag)) 2584 if (ecb_expect_true (*flag))
2119 return; 2585 return;
2120 2586
2121 *flag = 1; 2587 *flag = 1;
2122 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2588 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2123 2589
… …
2144#endif 2610#endif
2145 { 2611 {
2146#ifdef _WIN32 2612#ifdef _WIN32
2147 WSABUF buf; 2613 WSABUF buf;
2148 DWORD sent; 2614 DWORD sent;
2149 buf.buf = &buf; 2615 buf.buf = (char *)&buf;
2150 buf.len = 1; 2616 buf.len = 1;
2151 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2617 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2152#else 2618#else
2153 write (evpipe [1], &(evpipe [1]), 1); 2619 write (evpipe [1], &(evpipe [1]), 1);
2154#endif 2620#endif
… …
2200 sig_pending = 0; 2666 sig_pending = 0;
2201 2667
2202 ECB_MEMORY_FENCE; 2668 ECB_MEMORY_FENCE;
2203 2669
2204 for (i = EV_NSIG - 1; i--; ) 2670 for (i = EV_NSIG - 1; i--; )
2205 if (expect_false (signals [i].pending)) 2671 if (ecb_expect_false (signals [i].pending))
2206 ev_feed_signal_event (EV_A_ i + 1); 2672 ev_feed_signal_event (EV_A_ i + 1);
2207 } 2673 }
2208#endif 2674#endif
2209 2675
2210#if EV_ASYNC_ENABLE 2676#if EV_ASYNC_ENABLE
… …
2226} 2692}
2227 2693
2228/*****************************************************************************/ 2694/*****************************************************************************/
2229 2695
2230void 2696void
2231ev_feed_signal (int signum) EV_THROW 2697ev_feed_signal (int signum) EV_NOEXCEPT
2232{ 2698{
2233#if EV_MULTIPLICITY 2699#if EV_MULTIPLICITY
2700 EV_P;
2234 ECB_MEMORY_FENCE_ACQUIRE; 2701 ECB_MEMORY_FENCE_ACQUIRE;
2235 EV_P = signals [signum - 1].loop; 2702 EV_A = signals [signum - 1].loop;
2236 2703
2237 if (!EV_A) 2704 if (!EV_A)
2238 return; 2705 return;
2239#endif 2706#endif
2240 2707
… …
2250#endif 2717#endif
2251 2718
2252 ev_feed_signal (signum); 2719 ev_feed_signal (signum);
2253} 2720}
2254 2721
2255void noinline 2722ecb_noinline
2723void
2256ev_feed_signal_event (EV_P_ int signum) EV_THROW 2724ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2257{ 2725{
2258 WL w; 2726 WL w;
2259 2727
2260 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2728 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2261 return; 2729 return;
2262 2730
2263 --signum; 2731 --signum;
2264 2732
2265#if EV_MULTIPLICITY 2733#if EV_MULTIPLICITY
2266 /* it is permissible to try to feed a signal to the wrong loop */ 2734 /* it is permissible to try to feed a signal to the wrong loop */
2267 /* or, likely more useful, feeding a signal nobody is waiting for */ 2735 /* or, likely more useful, feeding a signal nobody is waiting for */
2268 2736
2269 if (expect_false (signals [signum].loop != EV_A)) 2737 if (ecb_expect_false (signals [signum].loop != EV_A))
2270 return; 2738 return;
2271#endif 2739#endif
2272 2740
2273 signals [signum].pending = 0; 2741 signals [signum].pending = 0;
2274 ECB_MEMORY_FENCE_RELEASE; 2742 ECB_MEMORY_FENCE_RELEASE;
… …
2370# include "ev_kqueue.c" 2838# include "ev_kqueue.c"
2371#endif 2839#endif
2372#if EV_USE_EPOLL 2840#if EV_USE_EPOLL
2373# include "ev_epoll.c" 2841# include "ev_epoll.c"
2374#endif 2842#endif
2843#if EV_USE_LINUXAIO
2844# include "ev_linuxaio.c"
2845#endif
2846#if EV_USE_IOURING
2847# include "ev_iouring.c"
2848#endif
2375#if EV_USE_POLL 2849#if EV_USE_POLL
2376# include "ev_poll.c" 2850# include "ev_poll.c"
2377#endif 2851#endif
2378#if EV_USE_SELECT 2852#if EV_USE_SELECT
2379# include "ev_select.c" 2853# include "ev_select.c"
2380#endif 2854#endif
2381 2855
2382int ecb_cold 2856ecb_cold int
2383ev_version_major (void) EV_THROW 2857ev_version_major (void) EV_NOEXCEPT
2384{ 2858{
2385 return EV_VERSION_MAJOR; 2859 return EV_VERSION_MAJOR;
2386} 2860}
2387 2861
2388int ecb_cold 2862ecb_cold int
2389ev_version_minor (void) EV_THROW 2863ev_version_minor (void) EV_NOEXCEPT
2390{ 2864{
2391 return EV_VERSION_MINOR; 2865 return EV_VERSION_MINOR;
2392} 2866}
2393 2867
2394/* return true if we are running with elevated privileges and should ignore env variables */ 2868/* return true if we are running with elevated privileges and should ignore env variables */
2395int inline_size ecb_cold 2869inline_size ecb_cold int
2396enable_secure (void) 2870enable_secure (void)
2397{ 2871{
2398#ifdef _WIN32 2872#ifdef _WIN32
2399 return 0; 2873 return 0;
2400#else 2874#else
2401 return getuid () != geteuid () 2875 return getuid () != geteuid ()
2402 || getgid () != getegid (); 2876 || getgid () != getegid ();
2403#endif 2877#endif
2404} 2878}
2405 2879
2406unsigned int ecb_cold 2880ecb_cold
2881unsigned int
2407ev_supported_backends (void) EV_THROW 2882ev_supported_backends (void) EV_NOEXCEPT
2408{ 2883{
2409 unsigned int flags = 0; 2884 unsigned int flags = 0;
2410 2885
2411 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2886 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2412 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2887 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2413 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2888 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2889 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2890 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2414 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2891 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2415 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2892 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2416 2893
2417 return flags; 2894 return flags;
2418} 2895}
2419 2896
2420unsigned int ecb_cold 2897ecb_cold
2898unsigned int
2421ev_recommended_backends (void) EV_THROW 2899ev_recommended_backends (void) EV_NOEXCEPT
2422{ 2900{
2423 unsigned int flags = ev_supported_backends (); 2901 unsigned int flags = ev_supported_backends ();
2424 2902
2425#ifndef __NetBSD__ 2903#ifndef __NetBSD__
2426 /* kqueue is borked on everything but netbsd apparently */ 2904 /* kqueue is borked on everything but netbsd apparently */
… …
2434#endif 2912#endif
2435#ifdef __FreeBSD__ 2913#ifdef __FreeBSD__
2436 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 2914 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2437#endif 2915#endif
2438 2916
2917 /* TODO: linuxaio is very experimental */
2918#if !EV_RECOMMEND_LINUXAIO
2919 flags &= ~EVBACKEND_LINUXAIO;
2920#endif
2921 /* TODO: linuxaio is super experimental */
2922#if !EV_RECOMMEND_IOURING
2923 flags &= ~EVBACKEND_IOURING;
2924#endif
2925
2439 return flags; 2926 return flags;
2440} 2927}
2441 2928
2442unsigned int ecb_cold 2929ecb_cold
2930unsigned int
2443ev_embeddable_backends (void) EV_THROW 2931ev_embeddable_backends (void) EV_NOEXCEPT
2444{ 2932{
2445 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2933 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2446 2934
2447 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2935 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2448 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2936 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2449 flags &= ~EVBACKEND_EPOLL; 2937 flags &= ~EVBACKEND_EPOLL;
2450 2938
2939 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2940
2941 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
2942 * because our backend_fd is the epoll fd we need as fallback.
2943 * if the kernel ever is fixed, this might change...
2944 */
2945
2451 return flags; 2946 return flags;
2452} 2947}
2453 2948
2454unsigned int 2949unsigned int
2455ev_backend (EV_P) EV_THROW 2950ev_backend (EV_P) EV_NOEXCEPT
2456{ 2951{
2457 return backend; 2952 return backend;
2458} 2953}
2459 2954
2460#if EV_FEATURE_API 2955#if EV_FEATURE_API
2461unsigned int 2956unsigned int
2462ev_iteration (EV_P) EV_THROW 2957ev_iteration (EV_P) EV_NOEXCEPT
2463{ 2958{
2464 return loop_count; 2959 return loop_count;
2465} 2960}
2466 2961
2467unsigned int 2962unsigned int
2468ev_depth (EV_P) EV_THROW 2963ev_depth (EV_P) EV_NOEXCEPT
2469{ 2964{
2470 return loop_depth; 2965 return loop_depth;
2471} 2966}
2472 2967
2473void 2968void
2474ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2969ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2475{ 2970{
2476 io_blocktime = interval; 2971 io_blocktime = interval;
2477} 2972}
2478 2973
2479void 2974void
2480ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2975ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2481{ 2976{
2482 timeout_blocktime = interval; 2977 timeout_blocktime = interval;
2483} 2978}
2484 2979
2485void 2980void
2486ev_set_userdata (EV_P_ void *data) EV_THROW 2981ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2487{ 2982{
2488 userdata = data; 2983 userdata = data;
2489} 2984}
2490 2985
2491void * 2986void *
2492ev_userdata (EV_P) EV_THROW 2987ev_userdata (EV_P) EV_NOEXCEPT
2493{ 2988{
2494 return userdata; 2989 return userdata;
2495} 2990}
2496 2991
2497void 2992void
2498ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2993ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2499{ 2994{
2500 invoke_cb = invoke_pending_cb; 2995 invoke_cb = invoke_pending_cb;
2501} 2996}
2502 2997
2503void 2998void
2504ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2999ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2505{ 3000{
2506 release_cb = release; 3001 release_cb = release;
2507 acquire_cb = acquire; 3002 acquire_cb = acquire;
2508} 3003}
2509#endif 3004#endif
2510 3005
2511/* initialise a loop structure, must be zero-initialised */ 3006/* initialise a loop structure, must be zero-initialised */
2512static void noinline ecb_cold 3007ecb_noinline ecb_cold
3008static void
2513loop_init (EV_P_ unsigned int flags) EV_THROW 3009loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2514{ 3010{
2515 if (!backend) 3011 if (!backend)
2516 { 3012 {
2517 origflags = flags; 3013 origflags = flags;
2518 3014
… …
2576 3072
2577 if (!(flags & EVBACKEND_MASK)) 3073 if (!(flags & EVBACKEND_MASK))
2578 flags |= ev_recommended_backends (); 3074 flags |= ev_recommended_backends ();
2579 3075
2580#if EV_USE_IOCP 3076#if EV_USE_IOCP
2581 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3077 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2582#endif 3078#endif
2583#if EV_USE_PORT 3079#if EV_USE_PORT
2584 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3080 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2585#endif 3081#endif
2586#if EV_USE_KQUEUE 3082#if EV_USE_KQUEUE
2587 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3083 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3084#endif
3085#if EV_USE_IOURING
3086 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3087#endif
3088#if EV_USE_LINUXAIO
3089 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2588#endif 3090#endif
2589#if EV_USE_EPOLL 3091#if EV_USE_EPOLL
2590 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3092 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2591#endif 3093#endif
2592#if EV_USE_POLL 3094#if EV_USE_POLL
2593 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3095 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2594#endif 3096#endif
2595#if EV_USE_SELECT 3097#if EV_USE_SELECT
2596 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3098 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2597#endif 3099#endif
2598 3100
2599 ev_prepare_init (&pending_w, pendingcb); 3101 ev_prepare_init (&pending_w, pendingcb);
2600 3102
2601#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3103#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2604#endif 3106#endif
2605 } 3107 }
2606} 3108}
2607 3109
2608/* free up a loop structure */ 3110/* free up a loop structure */
2609void ecb_cold 3111ecb_cold
3112void
2610ev_loop_destroy (EV_P) 3113ev_loop_destroy (EV_P)
2611{ 3114{
2612 int i; 3115 int i;
2613 3116
2614#if EV_MULTIPLICITY 3117#if EV_MULTIPLICITY
… …
2617 return; 3120 return;
2618#endif 3121#endif
2619 3122
2620#if EV_CLEANUP_ENABLE 3123#if EV_CLEANUP_ENABLE
2621 /* queue cleanup watchers (and execute them) */ 3124 /* queue cleanup watchers (and execute them) */
2622 if (expect_false (cleanupcnt)) 3125 if (ecb_expect_false (cleanupcnt))
2623 { 3126 {
2624 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3127 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2625 EV_INVOKE_PENDING; 3128 EV_INVOKE_PENDING;
2626 } 3129 }
2627#endif 3130#endif
… …
2655 3158
2656 if (backend_fd >= 0) 3159 if (backend_fd >= 0)
2657 close (backend_fd); 3160 close (backend_fd);
2658 3161
2659#if EV_USE_IOCP 3162#if EV_USE_IOCP
2660 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3163 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2661#endif 3164#endif
2662#if EV_USE_PORT 3165#if EV_USE_PORT
2663 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3166 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2664#endif 3167#endif
2665#if EV_USE_KQUEUE 3168#if EV_USE_KQUEUE
2666 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3169 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3170#endif
3171#if EV_USE_IOURING
3172 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3173#endif
3174#if EV_USE_LINUXAIO
3175 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2667#endif 3176#endif
2668#if EV_USE_EPOLL 3177#if EV_USE_EPOLL
2669 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3178 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2670#endif 3179#endif
2671#if EV_USE_POLL 3180#if EV_USE_POLL
2672 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3181 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2673#endif 3182#endif
2674#if EV_USE_SELECT 3183#if EV_USE_SELECT
2675 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3184 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2676#endif 3185#endif
2677 3186
2678 for (i = NUMPRI; i--; ) 3187 for (i = NUMPRI; i--; )
2679 { 3188 {
2680 array_free (pending, [i]); 3189 array_free (pending, [i]);
… …
2722 3231
2723inline_size void 3232inline_size void
2724loop_fork (EV_P) 3233loop_fork (EV_P)
2725{ 3234{
2726#if EV_USE_PORT 3235#if EV_USE_PORT
2727 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3236 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2728#endif 3237#endif
2729#if EV_USE_KQUEUE 3238#if EV_USE_KQUEUE
2730 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3239 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3240#endif
3241#if EV_USE_IOURING
3242 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3243#endif
3244#if EV_USE_LINUXAIO
3245 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2731#endif 3246#endif
2732#if EV_USE_EPOLL 3247#if EV_USE_EPOLL
2733 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3248 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2734#endif 3249#endif
2735#if EV_USE_INOTIFY 3250#if EV_USE_INOTIFY
2736 infy_fork (EV_A); 3251 infy_fork (EV_A);
2737#endif 3252#endif
2738 3253
2739#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3254#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2740 if (ev_is_active (&pipe_w)) 3255 if (ev_is_active (&pipe_w) && postfork != 2)
2741 { 3256 {
2742 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3257 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2743 3258
2744 ev_ref (EV_A); 3259 ev_ref (EV_A);
2745 ev_io_stop (EV_A_ &pipe_w); 3260 ev_io_stop (EV_A_ &pipe_w);
… …
2756 postfork = 0; 3271 postfork = 0;
2757} 3272}
2758 3273
2759#if EV_MULTIPLICITY 3274#if EV_MULTIPLICITY
2760 3275
3276ecb_cold
2761struct ev_loop * ecb_cold 3277struct ev_loop *
2762ev_loop_new (unsigned int flags) EV_THROW 3278ev_loop_new (unsigned int flags) EV_NOEXCEPT
2763{ 3279{
2764 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3280 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2765 3281
2766 memset (EV_A, 0, sizeof (struct ev_loop)); 3282 memset (EV_A, 0, sizeof (struct ev_loop));
2767 loop_init (EV_A_ flags); 3283 loop_init (EV_A_ flags);
… …
2774} 3290}
2775 3291
2776#endif /* multiplicity */ 3292#endif /* multiplicity */
2777 3293
2778#if EV_VERIFY 3294#if EV_VERIFY
2779static void noinline ecb_cold 3295ecb_noinline ecb_cold
3296static void
2780verify_watcher (EV_P_ W w) 3297verify_watcher (EV_P_ W w)
2781{ 3298{
2782 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3299 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2783 3300
2784 if (w->pending) 3301 if (w->pending)
2785 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3302 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2786} 3303}
2787 3304
2788static void noinline ecb_cold 3305ecb_noinline ecb_cold
3306static void
2789verify_heap (EV_P_ ANHE *heap, int N) 3307verify_heap (EV_P_ ANHE *heap, int N)
2790{ 3308{
2791 int i; 3309 int i;
2792 3310
2793 for (i = HEAP0; i < N + HEAP0; ++i) 3311 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2798 3316
2799 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3317 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2800 } 3318 }
2801} 3319}
2802 3320
2803static void noinline ecb_cold 3321ecb_noinline ecb_cold
3322static void
2804array_verify (EV_P_ W *ws, int cnt) 3323array_verify (EV_P_ W *ws, int cnt)
2805{ 3324{
2806 while (cnt--) 3325 while (cnt--)
2807 { 3326 {
2808 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3327 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2811} 3330}
2812#endif 3331#endif
2813 3332
2814#if EV_FEATURE_API 3333#if EV_FEATURE_API
2815void ecb_cold 3334void ecb_cold
2816ev_verify (EV_P) EV_THROW 3335ev_verify (EV_P) EV_NOEXCEPT
2817{ 3336{
2818#if EV_VERIFY 3337#if EV_VERIFY
2819 int i; 3338 int i;
2820 WL w, w2; 3339 WL w, w2;
2821 3340
… …
2897#endif 3416#endif
2898} 3417}
2899#endif 3418#endif
2900 3419
2901#if EV_MULTIPLICITY 3420#if EV_MULTIPLICITY
3421ecb_cold
2902struct ev_loop * ecb_cold 3422struct ev_loop *
2903#else 3423#else
2904int 3424int
2905#endif 3425#endif
2906ev_default_loop (unsigned int flags) EV_THROW 3426ev_default_loop (unsigned int flags) EV_NOEXCEPT
2907{ 3427{
2908 if (!ev_default_loop_ptr) 3428 if (!ev_default_loop_ptr)
2909 { 3429 {
2910#if EV_MULTIPLICITY 3430#if EV_MULTIPLICITY
2911 EV_P = ev_default_loop_ptr = &default_loop_struct; 3431 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2930 3450
2931 return ev_default_loop_ptr; 3451 return ev_default_loop_ptr;
2932} 3452}
2933 3453
2934void 3454void
2935ev_loop_fork (EV_P) EV_THROW 3455ev_loop_fork (EV_P) EV_NOEXCEPT
2936{ 3456{
2937 postfork = 1; 3457 postfork = 1;
2938} 3458}
2939 3459
2940/*****************************************************************************/ 3460/*****************************************************************************/
… …
2944{ 3464{
2945 EV_CB_INVOKE ((W)w, revents); 3465 EV_CB_INVOKE ((W)w, revents);
2946} 3466}
2947 3467
2948unsigned int 3468unsigned int
2949ev_pending_count (EV_P) EV_THROW 3469ev_pending_count (EV_P) EV_NOEXCEPT
2950{ 3470{
2951 int pri; 3471 int pri;
2952 unsigned int count = 0; 3472 unsigned int count = 0;
2953 3473
2954 for (pri = NUMPRI; pri--; ) 3474 for (pri = NUMPRI; pri--; )
2955 count += pendingcnt [pri]; 3475 count += pendingcnt [pri];
2956 3476
2957 return count; 3477 return count;
2958} 3478}
2959 3479
2960void noinline 3480ecb_noinline
3481void
2961ev_invoke_pending (EV_P) 3482ev_invoke_pending (EV_P)
2962{ 3483{
2963 pendingpri = NUMPRI; 3484 pendingpri = NUMPRI;
2964 3485
2965 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3486 do
2966 { 3487 {
2967 --pendingpri; 3488 --pendingpri;
2968 3489
3490 /* pendingpri possibly gets modified in the inner loop */
2969 while (pendingcnt [pendingpri]) 3491 while (pendingcnt [pendingpri])
2970 { 3492 {
2971 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3493 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2972 3494
2973 p->w->pending = 0; 3495 p->w->pending = 0;
2974 EV_CB_INVOKE (p->w, p->events); 3496 EV_CB_INVOKE (p->w, p->events);
2975 EV_FREQUENT_CHECK; 3497 EV_FREQUENT_CHECK;
2976 } 3498 }
2977 } 3499 }
3500 while (pendingpri);
2978} 3501}
2979 3502
2980#if EV_IDLE_ENABLE 3503#if EV_IDLE_ENABLE
2981/* make idle watchers pending. this handles the "call-idle */ 3504/* make idle watchers pending. this handles the "call-idle */
2982/* only when higher priorities are idle" logic */ 3505/* only when higher priorities are idle" logic */
2983inline_size void 3506inline_size void
2984idle_reify (EV_P) 3507idle_reify (EV_P)
2985{ 3508{
2986 if (expect_false (idleall)) 3509 if (ecb_expect_false (idleall))
2987 { 3510 {
2988 int pri; 3511 int pri;
2989 3512
2990 for (pri = NUMPRI; pri--; ) 3513 for (pri = NUMPRI; pri--; )
2991 { 3514 {
… …
3040 } 3563 }
3041} 3564}
3042 3565
3043#if EV_PERIODIC_ENABLE 3566#if EV_PERIODIC_ENABLE
3044 3567
3045static void noinline 3568ecb_noinline
3569static void
3046periodic_recalc (EV_P_ ev_periodic *w) 3570periodic_recalc (EV_P_ ev_periodic *w)
3047{ 3571{
3048 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3572 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3049 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3573 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3050 3574
… …
3052 while (at <= ev_rt_now) 3576 while (at <= ev_rt_now)
3053 { 3577 {
3054 ev_tstamp nat = at + w->interval; 3578 ev_tstamp nat = at + w->interval;
3055 3579
3056 /* when resolution fails us, we use ev_rt_now */ 3580 /* when resolution fails us, we use ev_rt_now */
3057 if (expect_false (nat == at)) 3581 if (ecb_expect_false (nat == at))
3058 { 3582 {
3059 at = ev_rt_now; 3583 at = ev_rt_now;
3060 break; 3584 break;
3061 } 3585 }
3062 3586
… …
3108 } 3632 }
3109} 3633}
3110 3634
3111/* simply recalculate all periodics */ 3635/* simply recalculate all periodics */
3112/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3636/* TODO: maybe ensure that at least one event happens when jumping forward? */
3113static void noinline ecb_cold 3637ecb_noinline ecb_cold
3638static void
3114periodics_reschedule (EV_P) 3639periodics_reschedule (EV_P)
3115{ 3640{
3116 int i; 3641 int i;
3117 3642
3118 /* adjust periodics after time jump */ 3643 /* adjust periodics after time jump */
… …
3131 reheap (periodics, periodiccnt); 3656 reheap (periodics, periodiccnt);
3132} 3657}
3133#endif 3658#endif
3134 3659
3135/* adjust all timers by a given offset */ 3660/* adjust all timers by a given offset */
3136static void noinline ecb_cold 3661ecb_noinline ecb_cold
3662static void
3137timers_reschedule (EV_P_ ev_tstamp adjust) 3663timers_reschedule (EV_P_ ev_tstamp adjust)
3138{ 3664{
3139 int i; 3665 int i;
3140 3666
3141 for (i = 0; i < timercnt; ++i) 3667 for (i = 0; i < timercnt; ++i)
… …
3150/* also detect if there was a timejump, and act accordingly */ 3676/* also detect if there was a timejump, and act accordingly */
3151inline_speed void 3677inline_speed void
3152time_update (EV_P_ ev_tstamp max_block) 3678time_update (EV_P_ ev_tstamp max_block)
3153{ 3679{
3154#if EV_USE_MONOTONIC 3680#if EV_USE_MONOTONIC
3155 if (expect_true (have_monotonic)) 3681 if (ecb_expect_true (have_monotonic))
3156 { 3682 {
3157 int i; 3683 int i;
3158 ev_tstamp odiff = rtmn_diff; 3684 ev_tstamp odiff = rtmn_diff;
3159 3685
3160 mn_now = get_clock (); 3686 mn_now = get_clock ();
3161 3687
3162 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3688 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3163 /* interpolate in the meantime */ 3689 /* interpolate in the meantime */
3164 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3690 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
3165 { 3691 {
3166 ev_rt_now = rtmn_diff + mn_now; 3692 ev_rt_now = rtmn_diff + mn_now;
3167 return; 3693 return;
3168 } 3694 }
3169 3695
… …
3183 ev_tstamp diff; 3709 ev_tstamp diff;
3184 rtmn_diff = ev_rt_now - mn_now; 3710 rtmn_diff = ev_rt_now - mn_now;
3185 3711
3186 diff = odiff - rtmn_diff; 3712 diff = odiff - rtmn_diff;
3187 3713
3188 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3714 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
3189 return; /* all is well */ 3715 return; /* all is well */
3190 3716
3191 ev_rt_now = ev_time (); 3717 ev_rt_now = ev_time ();
3192 mn_now = get_clock (); 3718 mn_now = get_clock ();
3193 now_floor = mn_now; 3719 now_floor = mn_now;
… …
3202 else 3728 else
3203#endif 3729#endif
3204 { 3730 {
3205 ev_rt_now = ev_time (); 3731 ev_rt_now = ev_time ();
3206 3732
3207 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3733 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
3208 { 3734 {
3209 /* adjust timers. this is easy, as the offset is the same for all of them */ 3735 /* adjust timers. this is easy, as the offset is the same for all of them */
3210 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3736 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3211#if EV_PERIODIC_ENABLE 3737#if EV_PERIODIC_ENABLE
3212 periodics_reschedule (EV_A); 3738 periodics_reschedule (EV_A);
… …
3235#if EV_VERIFY >= 2 3761#if EV_VERIFY >= 2
3236 ev_verify (EV_A); 3762 ev_verify (EV_A);
3237#endif 3763#endif
3238 3764
3239#ifndef _WIN32 3765#ifndef _WIN32
3240 if (expect_false (curpid)) /* penalise the forking check even more */ 3766 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3241 if (expect_false (getpid () != curpid)) 3767 if (ecb_expect_false (getpid () != curpid))
3242 { 3768 {
3243 curpid = getpid (); 3769 curpid = getpid ();
3244 postfork = 1; 3770 postfork = 1;
3245 } 3771 }
3246#endif 3772#endif
3247 3773
3248#if EV_FORK_ENABLE 3774#if EV_FORK_ENABLE
3249 /* we might have forked, so queue fork handlers */ 3775 /* we might have forked, so queue fork handlers */
3250 if (expect_false (postfork)) 3776 if (ecb_expect_false (postfork))
3251 if (forkcnt) 3777 if (forkcnt)
3252 { 3778 {
3253 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3779 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3254 EV_INVOKE_PENDING; 3780 EV_INVOKE_PENDING;
3255 } 3781 }
3256#endif 3782#endif
3257 3783
3258#if EV_PREPARE_ENABLE 3784#if EV_PREPARE_ENABLE
3259 /* queue prepare watchers (and execute them) */ 3785 /* queue prepare watchers (and execute them) */
3260 if (expect_false (preparecnt)) 3786 if (ecb_expect_false (preparecnt))
3261 { 3787 {
3262 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3788 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3263 EV_INVOKE_PENDING; 3789 EV_INVOKE_PENDING;
3264 } 3790 }
3265#endif 3791#endif
3266 3792
3267 if (expect_false (loop_done)) 3793 if (ecb_expect_false (loop_done))
3268 break; 3794 break;
3269 3795
3270 /* we might have forked, so reify kernel state if necessary */ 3796 /* we might have forked, so reify kernel state if necessary */
3271 if (expect_false (postfork)) 3797 if (ecb_expect_false (postfork))
3272 loop_fork (EV_A); 3798 loop_fork (EV_A);
3273 3799
3274 /* update fd-related kernel structures */ 3800 /* update fd-related kernel structures */
3275 fd_reify (EV_A); 3801 fd_reify (EV_A);
3276 3802
… …
3288 /* from now on, we want a pipe-wake-up */ 3814 /* from now on, we want a pipe-wake-up */
3289 pipe_write_wanted = 1; 3815 pipe_write_wanted = 1;
3290 3816
3291 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3817 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3292 3818
3293 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3819 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3294 { 3820 {
3295 waittime = MAX_BLOCKTIME; 3821 waittime = MAX_BLOCKTIME;
3296 3822
3297 if (timercnt) 3823 if (timercnt)
3298 { 3824 {
… …
3307 if (waittime > to) waittime = to; 3833 if (waittime > to) waittime = to;
3308 } 3834 }
3309#endif 3835#endif
3310 3836
3311 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3837 /* don't let timeouts decrease the waittime below timeout_blocktime */
3312 if (expect_false (waittime < timeout_blocktime)) 3838 if (ecb_expect_false (waittime < timeout_blocktime))
3313 waittime = timeout_blocktime; 3839 waittime = timeout_blocktime;
3314 3840
3315 /* at this point, we NEED to wait, so we have to ensure */ 3841 /* at this point, we NEED to wait, so we have to ensure */
3316 /* to pass a minimum nonzero value to the backend */ 3842 /* to pass a minimum nonzero value to the backend */
3317 if (expect_false (waittime < backend_mintime)) 3843 if (ecb_expect_false (waittime < backend_mintime))
3318 waittime = backend_mintime; 3844 waittime = backend_mintime;
3319 3845
3320 /* extra check because io_blocktime is commonly 0 */ 3846 /* extra check because io_blocktime is commonly 0 */
3321 if (expect_false (io_blocktime)) 3847 if (ecb_expect_false (io_blocktime))
3322 { 3848 {
3323 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3849 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3324 3850
3325 if (sleeptime > waittime - backend_mintime) 3851 if (sleeptime > waittime - backend_mintime)
3326 sleeptime = waittime - backend_mintime; 3852 sleeptime = waittime - backend_mintime;
3327 3853
3328 if (expect_true (sleeptime > 0.)) 3854 if (ecb_expect_true (sleeptime > 0.))
3329 { 3855 {
3330 ev_sleep (sleeptime); 3856 ev_sleep (sleeptime);
3331 waittime -= sleeptime; 3857 waittime -= sleeptime;
3332 } 3858 }
3333 } 3859 }
… …
3347 { 3873 {
3348 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3874 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3349 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3875 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3350 } 3876 }
3351 3877
3352
3353 /* update ev_rt_now, do magic */ 3878 /* update ev_rt_now, do magic */
3354 time_update (EV_A_ waittime + sleeptime); 3879 time_update (EV_A_ waittime + sleeptime);
3355 } 3880 }
3356 3881
3357 /* queue pending timers and reschedule them */ 3882 /* queue pending timers and reschedule them */
… …
3365 idle_reify (EV_A); 3890 idle_reify (EV_A);
3366#endif 3891#endif
3367 3892
3368#if EV_CHECK_ENABLE 3893#if EV_CHECK_ENABLE
3369 /* queue check watchers, to be executed first */ 3894 /* queue check watchers, to be executed first */
3370 if (expect_false (checkcnt)) 3895 if (ecb_expect_false (checkcnt))
3371 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 3896 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3372#endif 3897#endif
3373 3898
3374 EV_INVOKE_PENDING; 3899 EV_INVOKE_PENDING;
3375 } 3900 }
3376 while (expect_true ( 3901 while (ecb_expect_true (
3377 activecnt 3902 activecnt
3378 && !loop_done 3903 && !loop_done
3379 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 3904 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3380 )); 3905 ));
3381 3906
… …
3388 3913
3389 return activecnt; 3914 return activecnt;
3390} 3915}
3391 3916
3392void 3917void
3393ev_break (EV_P_ int how) EV_THROW 3918ev_break (EV_P_ int how) EV_NOEXCEPT
3394{ 3919{
3395 loop_done = how; 3920 loop_done = how;
3396} 3921}
3397 3922
3398void 3923void
3399ev_ref (EV_P) EV_THROW 3924ev_ref (EV_P) EV_NOEXCEPT
3400{ 3925{
3401 ++activecnt; 3926 ++activecnt;
3402} 3927}
3403 3928
3404void 3929void
3405ev_unref (EV_P) EV_THROW 3930ev_unref (EV_P) EV_NOEXCEPT
3406{ 3931{
3407 --activecnt; 3932 --activecnt;
3408} 3933}
3409 3934
3410void 3935void
3411ev_now_update (EV_P) EV_THROW 3936ev_now_update (EV_P) EV_NOEXCEPT
3412{ 3937{
3413 time_update (EV_A_ 1e100); 3938 time_update (EV_A_ 1e100);
3414} 3939}
3415 3940
3416void 3941void
3417ev_suspend (EV_P) EV_THROW 3942ev_suspend (EV_P) EV_NOEXCEPT
3418{ 3943{
3419 ev_now_update (EV_A); 3944 ev_now_update (EV_A);
3420} 3945}
3421 3946
3422void 3947void
3423ev_resume (EV_P) EV_THROW 3948ev_resume (EV_P) EV_NOEXCEPT
3424{ 3949{
3425 ev_tstamp mn_prev = mn_now; 3950 ev_tstamp mn_prev = mn_now;
3426 3951
3427 ev_now_update (EV_A); 3952 ev_now_update (EV_A);
3428 timers_reschedule (EV_A_ mn_now - mn_prev); 3953 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3445inline_size void 3970inline_size void
3446wlist_del (WL *head, WL elem) 3971wlist_del (WL *head, WL elem)
3447{ 3972{
3448 while (*head) 3973 while (*head)
3449 { 3974 {
3450 if (expect_true (*head == elem)) 3975 if (ecb_expect_true (*head == elem))
3451 { 3976 {
3452 *head = elem->next; 3977 *head = elem->next;
3453 break; 3978 break;
3454 } 3979 }
3455 3980
… …
3467 w->pending = 0; 3992 w->pending = 0;
3468 } 3993 }
3469} 3994}
3470 3995
3471int 3996int
3472ev_clear_pending (EV_P_ void *w) EV_THROW 3997ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3473{ 3998{
3474 W w_ = (W)w; 3999 W w_ = (W)w;
3475 int pending = w_->pending; 4000 int pending = w_->pending;
3476 4001
3477 if (expect_true (pending)) 4002 if (ecb_expect_true (pending))
3478 { 4003 {
3479 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4004 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3480 p->w = (W)&pending_w; 4005 p->w = (W)&pending_w;
3481 w_->pending = 0; 4006 w_->pending = 0;
3482 return p->events; 4007 return p->events;
… …
3509 w->active = 0; 4034 w->active = 0;
3510} 4035}
3511 4036
3512/*****************************************************************************/ 4037/*****************************************************************************/
3513 4038
3514void noinline 4039ecb_noinline
4040void
3515ev_io_start (EV_P_ ev_io *w) EV_THROW 4041ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3516{ 4042{
3517 int fd = w->fd; 4043 int fd = w->fd;
3518 4044
3519 if (expect_false (ev_is_active (w))) 4045 if (ecb_expect_false (ev_is_active (w)))
3520 return; 4046 return;
3521 4047
3522 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4048 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3523 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4049 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3524 4050
4051#if EV_VERIFY >= 2
4052 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4053#endif
3525 EV_FREQUENT_CHECK; 4054 EV_FREQUENT_CHECK;
3526 4055
3527 ev_start (EV_A_ (W)w, 1); 4056 ev_start (EV_A_ (W)w, 1);
3528 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4057 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3529 wlist_add (&anfds[fd].head, (WL)w); 4058 wlist_add (&anfds[fd].head, (WL)w);
3530 4059
3531 /* common bug, apparently */ 4060 /* common bug, apparently */
3532 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4061 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3533 4062
… …
3535 w->events &= ~EV__IOFDSET; 4064 w->events &= ~EV__IOFDSET;
3536 4065
3537 EV_FREQUENT_CHECK; 4066 EV_FREQUENT_CHECK;
3538} 4067}
3539 4068
3540void noinline 4069ecb_noinline
4070void
3541ev_io_stop (EV_P_ ev_io *w) EV_THROW 4071ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3542{ 4072{
3543 clear_pending (EV_A_ (W)w); 4073 clear_pending (EV_A_ (W)w);
3544 if (expect_false (!ev_is_active (w))) 4074 if (ecb_expect_false (!ev_is_active (w)))
3545 return; 4075 return;
3546 4076
3547 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4077 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3548 4078
4079#if EV_VERIFY >= 2
4080 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4081#endif
3549 EV_FREQUENT_CHECK; 4082 EV_FREQUENT_CHECK;
3550 4083
3551 wlist_del (&anfds[w->fd].head, (WL)w); 4084 wlist_del (&anfds[w->fd].head, (WL)w);
3552 ev_stop (EV_A_ (W)w); 4085 ev_stop (EV_A_ (W)w);
3553 4086
3554 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4087 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3555 4088
3556 EV_FREQUENT_CHECK; 4089 EV_FREQUENT_CHECK;
3557} 4090}
3558 4091
3559void noinline 4092ecb_noinline
4093void
3560ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4094ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3561{ 4095{
3562 if (expect_false (ev_is_active (w))) 4096 if (ecb_expect_false (ev_is_active (w)))
3563 return; 4097 return;
3564 4098
3565 ev_at (w) += mn_now; 4099 ev_at (w) += mn_now;
3566 4100
3567 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4101 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3568 4102
3569 EV_FREQUENT_CHECK; 4103 EV_FREQUENT_CHECK;
3570 4104
3571 ++timercnt; 4105 ++timercnt;
3572 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4106 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3573 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4107 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3574 ANHE_w (timers [ev_active (w)]) = (WT)w; 4108 ANHE_w (timers [ev_active (w)]) = (WT)w;
3575 ANHE_at_cache (timers [ev_active (w)]); 4109 ANHE_at_cache (timers [ev_active (w)]);
3576 upheap (timers, ev_active (w)); 4110 upheap (timers, ev_active (w));
3577 4111
3578 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3579 4113
3580 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4114 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3581} 4115}
3582 4116
3583void noinline 4117ecb_noinline
4118void
3584ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4119ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3585{ 4120{
3586 clear_pending (EV_A_ (W)w); 4121 clear_pending (EV_A_ (W)w);
3587 if (expect_false (!ev_is_active (w))) 4122 if (ecb_expect_false (!ev_is_active (w)))
3588 return; 4123 return;
3589 4124
3590 EV_FREQUENT_CHECK; 4125 EV_FREQUENT_CHECK;
3591 4126
3592 { 4127 {
… …
3594 4129
3595 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4130 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3596 4131
3597 --timercnt; 4132 --timercnt;
3598 4133
3599 if (expect_true (active < timercnt + HEAP0)) 4134 if (ecb_expect_true (active < timercnt + HEAP0))
3600 { 4135 {
3601 timers [active] = timers [timercnt + HEAP0]; 4136 timers [active] = timers [timercnt + HEAP0];
3602 adjustheap (timers, timercnt, active); 4137 adjustheap (timers, timercnt, active);
3603 } 4138 }
3604 } 4139 }
… …
3608 ev_stop (EV_A_ (W)w); 4143 ev_stop (EV_A_ (W)w);
3609 4144
3610 EV_FREQUENT_CHECK; 4145 EV_FREQUENT_CHECK;
3611} 4146}
3612 4147
3613void noinline 4148ecb_noinline
4149void
3614ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4150ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3615{ 4151{
3616 EV_FREQUENT_CHECK; 4152 EV_FREQUENT_CHECK;
3617 4153
3618 clear_pending (EV_A_ (W)w); 4154 clear_pending (EV_A_ (W)w);
3619 4155
… …
3636 4172
3637 EV_FREQUENT_CHECK; 4173 EV_FREQUENT_CHECK;
3638} 4174}
3639 4175
3640ev_tstamp 4176ev_tstamp
3641ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4177ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3642{ 4178{
3643 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4179 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3644} 4180}
3645 4181
3646#if EV_PERIODIC_ENABLE 4182#if EV_PERIODIC_ENABLE
3647void noinline 4183ecb_noinline
4184void
3648ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4185ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3649{ 4186{
3650 if (expect_false (ev_is_active (w))) 4187 if (ecb_expect_false (ev_is_active (w)))
3651 return; 4188 return;
3652 4189
3653 if (w->reschedule_cb) 4190 if (w->reschedule_cb)
3654 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4191 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3655 else if (w->interval) 4192 else if (w->interval)
… …
3662 4199
3663 EV_FREQUENT_CHECK; 4200 EV_FREQUENT_CHECK;
3664 4201
3665 ++periodiccnt; 4202 ++periodiccnt;
3666 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4203 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3667 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4204 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3668 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4205 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3669 ANHE_at_cache (periodics [ev_active (w)]); 4206 ANHE_at_cache (periodics [ev_active (w)]);
3670 upheap (periodics, ev_active (w)); 4207 upheap (periodics, ev_active (w));
3671 4208
3672 EV_FREQUENT_CHECK; 4209 EV_FREQUENT_CHECK;
3673 4210
3674 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4211 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3675} 4212}
3676 4213
3677void noinline 4214ecb_noinline
4215void
3678ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4216ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3679{ 4217{
3680 clear_pending (EV_A_ (W)w); 4218 clear_pending (EV_A_ (W)w);
3681 if (expect_false (!ev_is_active (w))) 4219 if (ecb_expect_false (!ev_is_active (w)))
3682 return; 4220 return;
3683 4221
3684 EV_FREQUENT_CHECK; 4222 EV_FREQUENT_CHECK;
3685 4223
3686 { 4224 {
… …
3688 4226
3689 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4227 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3690 4228
3691 --periodiccnt; 4229 --periodiccnt;
3692 4230
3693 if (expect_true (active < periodiccnt + HEAP0)) 4231 if (ecb_expect_true (active < periodiccnt + HEAP0))
3694 { 4232 {
3695 periodics [active] = periodics [periodiccnt + HEAP0]; 4233 periodics [active] = periodics [periodiccnt + HEAP0];
3696 adjustheap (periodics, periodiccnt, active); 4234 adjustheap (periodics, periodiccnt, active);
3697 } 4235 }
3698 } 4236 }
… …
3700 ev_stop (EV_A_ (W)w); 4238 ev_stop (EV_A_ (W)w);
3701 4239
3702 EV_FREQUENT_CHECK; 4240 EV_FREQUENT_CHECK;
3703} 4241}
3704 4242
3705void noinline 4243ecb_noinline
4244void
3706ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4245ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3707{ 4246{
3708 /* TODO: use adjustheap and recalculation */ 4247 /* TODO: use adjustheap and recalculation */
3709 ev_periodic_stop (EV_A_ w); 4248 ev_periodic_stop (EV_A_ w);
3710 ev_periodic_start (EV_A_ w); 4249 ev_periodic_start (EV_A_ w);
3711} 4250}
… …
3715# define SA_RESTART 0 4254# define SA_RESTART 0
3716#endif 4255#endif
3717 4256
3718#if EV_SIGNAL_ENABLE 4257#if EV_SIGNAL_ENABLE
3719 4258
3720void noinline 4259ecb_noinline
4260void
3721ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4261ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3722{ 4262{
3723 if (expect_false (ev_is_active (w))) 4263 if (ecb_expect_false (ev_is_active (w)))
3724 return; 4264 return;
3725 4265
3726 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4266 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3727 4267
3728#if EV_MULTIPLICITY 4268#if EV_MULTIPLICITY
… …
3797 } 4337 }
3798 4338
3799 EV_FREQUENT_CHECK; 4339 EV_FREQUENT_CHECK;
3800} 4340}
3801 4341
3802void noinline 4342ecb_noinline
4343void
3803ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4344ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3804{ 4345{
3805 clear_pending (EV_A_ (W)w); 4346 clear_pending (EV_A_ (W)w);
3806 if (expect_false (!ev_is_active (w))) 4347 if (ecb_expect_false (!ev_is_active (w)))
3807 return; 4348 return;
3808 4349
3809 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
3810 4351
3811 wlist_del (&signals [w->signum - 1].head, (WL)w); 4352 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3839#endif 4380#endif
3840 4381
3841#if EV_CHILD_ENABLE 4382#if EV_CHILD_ENABLE
3842 4383
3843void 4384void
3844ev_child_start (EV_P_ ev_child *w) EV_THROW 4385ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3845{ 4386{
3846#if EV_MULTIPLICITY 4387#if EV_MULTIPLICITY
3847 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4388 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3848#endif 4389#endif
3849 if (expect_false (ev_is_active (w))) 4390 if (ecb_expect_false (ev_is_active (w)))
3850 return; 4391 return;
3851 4392
3852 EV_FREQUENT_CHECK; 4393 EV_FREQUENT_CHECK;
3853 4394
3854 ev_start (EV_A_ (W)w, 1); 4395 ev_start (EV_A_ (W)w, 1);
… …
3856 4397
3857 EV_FREQUENT_CHECK; 4398 EV_FREQUENT_CHECK;
3858} 4399}
3859 4400
3860void 4401void
3861ev_child_stop (EV_P_ ev_child *w) EV_THROW 4402ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3862{ 4403{
3863 clear_pending (EV_A_ (W)w); 4404 clear_pending (EV_A_ (W)w);
3864 if (expect_false (!ev_is_active (w))) 4405 if (ecb_expect_false (!ev_is_active (w)))
3865 return; 4406 return;
3866 4407
3867 EV_FREQUENT_CHECK; 4408 EV_FREQUENT_CHECK;
3868 4409
3869 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4410 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3883 4424
3884#define DEF_STAT_INTERVAL 5.0074891 4425#define DEF_STAT_INTERVAL 5.0074891
3885#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4426#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3886#define MIN_STAT_INTERVAL 0.1074891 4427#define MIN_STAT_INTERVAL 0.1074891
3887 4428
3888static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4429ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3889 4430
3890#if EV_USE_INOTIFY 4431#if EV_USE_INOTIFY
3891 4432
3892/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4433/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3893# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4434# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3894 4435
3895static void noinline 4436ecb_noinline
4437static void
3896infy_add (EV_P_ ev_stat *w) 4438infy_add (EV_P_ ev_stat *w)
3897{ 4439{
3898 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 4440 w->wd = inotify_add_watch (fs_fd, w->path,
4441 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4442 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4443 | IN_DONT_FOLLOW | IN_MASK_ADD);
3899 4444
3900 if (w->wd >= 0) 4445 if (w->wd >= 0)
3901 { 4446 {
3902 struct statfs sfs; 4447 struct statfs sfs;
3903 4448
… …
3907 4452
3908 if (!fs_2625) 4453 if (!fs_2625)
3909 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4454 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3910 else if (!statfs (w->path, &sfs) 4455 else if (!statfs (w->path, &sfs)
3911 && (sfs.f_type == 0x1373 /* devfs */ 4456 && (sfs.f_type == 0x1373 /* devfs */
4457 || sfs.f_type == 0x4006 /* fat */
4458 || sfs.f_type == 0x4d44 /* msdos */
3912 || sfs.f_type == 0xEF53 /* ext2/3 */ 4459 || sfs.f_type == 0xEF53 /* ext2/3 */
4460 || sfs.f_type == 0x72b6 /* jffs2 */
4461 || sfs.f_type == 0x858458f6 /* ramfs */
4462 || sfs.f_type == 0x5346544e /* ntfs */
3913 || sfs.f_type == 0x3153464a /* jfs */ 4463 || sfs.f_type == 0x3153464a /* jfs */
4464 || sfs.f_type == 0x9123683e /* btrfs */
3914 || sfs.f_type == 0x52654973 /* reiser3 */ 4465 || sfs.f_type == 0x52654973 /* reiser3 */
3915 || sfs.f_type == 0x01021994 /* tempfs */ 4466 || sfs.f_type == 0x01021994 /* tmpfs */
3916 || sfs.f_type == 0x58465342 /* xfs */)) 4467 || sfs.f_type == 0x58465342 /* xfs */))
3917 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4468 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3918 else 4469 else
3919 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4470 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3920 } 4471 }
… …
3955 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4506 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3956 ev_timer_again (EV_A_ &w->timer); 4507 ev_timer_again (EV_A_ &w->timer);
3957 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4508 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3958} 4509}
3959 4510
3960static void noinline 4511ecb_noinline
4512static void
3961infy_del (EV_P_ ev_stat *w) 4513infy_del (EV_P_ ev_stat *w)
3962{ 4514{
3963 int slot; 4515 int slot;
3964 int wd = w->wd; 4516 int wd = w->wd;
3965 4517
… …
3972 4524
3973 /* remove this watcher, if others are watching it, they will rearm */ 4525 /* remove this watcher, if others are watching it, they will rearm */
3974 inotify_rm_watch (fs_fd, wd); 4526 inotify_rm_watch (fs_fd, wd);
3975} 4527}
3976 4528
3977static void noinline 4529ecb_noinline
4530static void
3978infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4531infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3979{ 4532{
3980 if (slot < 0) 4533 if (slot < 0)
3981 /* overflow, need to check for all hash slots */ 4534 /* overflow, need to check for all hash slots */
3982 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4535 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4018 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4571 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4019 ofs += sizeof (struct inotify_event) + ev->len; 4572 ofs += sizeof (struct inotify_event) + ev->len;
4020 } 4573 }
4021} 4574}
4022 4575
4023inline_size void ecb_cold 4576inline_size ecb_cold
4577void
4024ev_check_2625 (EV_P) 4578ev_check_2625 (EV_P)
4025{ 4579{
4026 /* kernels < 2.6.25 are borked 4580 /* kernels < 2.6.25 are borked
4027 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4581 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4028 */ 4582 */
… …
4118#else 4672#else
4119# define EV_LSTAT(p,b) lstat (p, b) 4673# define EV_LSTAT(p,b) lstat (p, b)
4120#endif 4674#endif
4121 4675
4122void 4676void
4123ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4677ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4124{ 4678{
4125 if (lstat (w->path, &w->attr) < 0) 4679 if (lstat (w->path, &w->attr) < 0)
4126 w->attr.st_nlink = 0; 4680 w->attr.st_nlink = 0;
4127 else if (!w->attr.st_nlink) 4681 else if (!w->attr.st_nlink)
4128 w->attr.st_nlink = 1; 4682 w->attr.st_nlink = 1;
4129} 4683}
4130 4684
4131static void noinline 4685ecb_noinline
4686static void
4132stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4687stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4133{ 4688{
4134 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4689 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4135 4690
4136 ev_statdata prev = w->attr; 4691 ev_statdata prev = w->attr;
… …
4167 ev_feed_event (EV_A_ w, EV_STAT); 4722 ev_feed_event (EV_A_ w, EV_STAT);
4168 } 4723 }
4169} 4724}
4170 4725
4171void 4726void
4172ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4727ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4173{ 4728{
4174 if (expect_false (ev_is_active (w))) 4729 if (ecb_expect_false (ev_is_active (w)))
4175 return; 4730 return;
4176 4731
4177 ev_stat_stat (EV_A_ w); 4732 ev_stat_stat (EV_A_ w);
4178 4733
4179 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4734 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4198 4753
4199 EV_FREQUENT_CHECK; 4754 EV_FREQUENT_CHECK;
4200} 4755}
4201 4756
4202void 4757void
4203ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4758ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4204{ 4759{
4205 clear_pending (EV_A_ (W)w); 4760 clear_pending (EV_A_ (W)w);
4206 if (expect_false (!ev_is_active (w))) 4761 if (ecb_expect_false (!ev_is_active (w)))
4207 return; 4762 return;
4208 4763
4209 EV_FREQUENT_CHECK; 4764 EV_FREQUENT_CHECK;
4210 4765
4211#if EV_USE_INOTIFY 4766#if EV_USE_INOTIFY
… …
4224} 4779}
4225#endif 4780#endif
4226 4781
4227#if EV_IDLE_ENABLE 4782#if EV_IDLE_ENABLE
4228void 4783void
4229ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4784ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4230{ 4785{
4231 if (expect_false (ev_is_active (w))) 4786 if (ecb_expect_false (ev_is_active (w)))
4232 return; 4787 return;
4233 4788
4234 pri_adjust (EV_A_ (W)w); 4789 pri_adjust (EV_A_ (W)w);
4235 4790
4236 EV_FREQUENT_CHECK; 4791 EV_FREQUENT_CHECK;
… …
4239 int active = ++idlecnt [ABSPRI (w)]; 4794 int active = ++idlecnt [ABSPRI (w)];
4240 4795
4241 ++idleall; 4796 ++idleall;
4242 ev_start (EV_A_ (W)w, active); 4797 ev_start (EV_A_ (W)w, active);
4243 4798
4244 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4799 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4245 idles [ABSPRI (w)][active - 1] = w; 4800 idles [ABSPRI (w)][active - 1] = w;
4246 } 4801 }
4247 4802
4248 EV_FREQUENT_CHECK; 4803 EV_FREQUENT_CHECK;
4249} 4804}
4250 4805
4251void 4806void
4252ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4807ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4253{ 4808{
4254 clear_pending (EV_A_ (W)w); 4809 clear_pending (EV_A_ (W)w);
4255 if (expect_false (!ev_is_active (w))) 4810 if (ecb_expect_false (!ev_is_active (w)))
4256 return; 4811 return;
4257 4812
4258 EV_FREQUENT_CHECK; 4813 EV_FREQUENT_CHECK;
4259 4814
4260 { 4815 {
… …
4271} 4826}
4272#endif 4827#endif
4273 4828
4274#if EV_PREPARE_ENABLE 4829#if EV_PREPARE_ENABLE
4275void 4830void
4276ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4831ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4277{ 4832{
4278 if (expect_false (ev_is_active (w))) 4833 if (ecb_expect_false (ev_is_active (w)))
4279 return; 4834 return;
4280 4835
4281 EV_FREQUENT_CHECK; 4836 EV_FREQUENT_CHECK;
4282 4837
4283 ev_start (EV_A_ (W)w, ++preparecnt); 4838 ev_start (EV_A_ (W)w, ++preparecnt);
4284 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4839 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4285 prepares [preparecnt - 1] = w; 4840 prepares [preparecnt - 1] = w;
4286 4841
4287 EV_FREQUENT_CHECK; 4842 EV_FREQUENT_CHECK;
4288} 4843}
4289 4844
4290void 4845void
4291ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4846ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4292{ 4847{
4293 clear_pending (EV_A_ (W)w); 4848 clear_pending (EV_A_ (W)w);
4294 if (expect_false (!ev_is_active (w))) 4849 if (ecb_expect_false (!ev_is_active (w)))
4295 return; 4850 return;
4296 4851
4297 EV_FREQUENT_CHECK; 4852 EV_FREQUENT_CHECK;
4298 4853
4299 { 4854 {
… …
4309} 4864}
4310#endif 4865#endif
4311 4866
4312#if EV_CHECK_ENABLE 4867#if EV_CHECK_ENABLE
4313void 4868void
4314ev_check_start (EV_P_ ev_check *w) EV_THROW 4869ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4315{ 4870{
4316 if (expect_false (ev_is_active (w))) 4871 if (ecb_expect_false (ev_is_active (w)))
4317 return; 4872 return;
4318 4873
4319 EV_FREQUENT_CHECK; 4874 EV_FREQUENT_CHECK;
4320 4875
4321 ev_start (EV_A_ (W)w, ++checkcnt); 4876 ev_start (EV_A_ (W)w, ++checkcnt);
4322 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 4877 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4323 checks [checkcnt - 1] = w; 4878 checks [checkcnt - 1] = w;
4324 4879
4325 EV_FREQUENT_CHECK; 4880 EV_FREQUENT_CHECK;
4326} 4881}
4327 4882
4328void 4883void
4329ev_check_stop (EV_P_ ev_check *w) EV_THROW 4884ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4330{ 4885{
4331 clear_pending (EV_A_ (W)w); 4886 clear_pending (EV_A_ (W)w);
4332 if (expect_false (!ev_is_active (w))) 4887 if (ecb_expect_false (!ev_is_active (w)))
4333 return; 4888 return;
4334 4889
4335 EV_FREQUENT_CHECK; 4890 EV_FREQUENT_CHECK;
4336 4891
4337 { 4892 {
… …
4346 EV_FREQUENT_CHECK; 4901 EV_FREQUENT_CHECK;
4347} 4902}
4348#endif 4903#endif
4349 4904
4350#if EV_EMBED_ENABLE 4905#if EV_EMBED_ENABLE
4351void noinline 4906ecb_noinline
4907void
4352ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4908ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4353{ 4909{
4354 ev_run (w->other, EVRUN_NOWAIT); 4910 ev_run (w->other, EVRUN_NOWAIT);
4355} 4911}
4356 4912
4357static void 4913static void
… …
4405 ev_idle_stop (EV_A_ idle); 4961 ev_idle_stop (EV_A_ idle);
4406} 4962}
4407#endif 4963#endif
4408 4964
4409void 4965void
4410ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4966ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4411{ 4967{
4412 if (expect_false (ev_is_active (w))) 4968 if (ecb_expect_false (ev_is_active (w)))
4413 return; 4969 return;
4414 4970
4415 { 4971 {
4416 EV_P = w->other; 4972 EV_P = w->other;
4417 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 4973 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4436 4992
4437 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4438} 4994}
4439 4995
4440void 4996void
4441ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4997ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4442{ 4998{
4443 clear_pending (EV_A_ (W)w); 4999 clear_pending (EV_A_ (W)w);
4444 if (expect_false (!ev_is_active (w))) 5000 if (ecb_expect_false (!ev_is_active (w)))
4445 return; 5001 return;
4446 5002
4447 EV_FREQUENT_CHECK; 5003 EV_FREQUENT_CHECK;
4448 5004
4449 ev_io_stop (EV_A_ &w->io); 5005 ev_io_stop (EV_A_ &w->io);
… …
4456} 5012}
4457#endif 5013#endif
4458 5014
4459#if EV_FORK_ENABLE 5015#if EV_FORK_ENABLE
4460void 5016void
4461ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5017ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4462{ 5018{
4463 if (expect_false (ev_is_active (w))) 5019 if (ecb_expect_false (ev_is_active (w)))
4464 return; 5020 return;
4465 5021
4466 EV_FREQUENT_CHECK; 5022 EV_FREQUENT_CHECK;
4467 5023
4468 ev_start (EV_A_ (W)w, ++forkcnt); 5024 ev_start (EV_A_ (W)w, ++forkcnt);
4469 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5025 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4470 forks [forkcnt - 1] = w; 5026 forks [forkcnt - 1] = w;
4471 5027
4472 EV_FREQUENT_CHECK; 5028 EV_FREQUENT_CHECK;
4473} 5029}
4474 5030
4475void 5031void
4476ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5032ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4477{ 5033{
4478 clear_pending (EV_A_ (W)w); 5034 clear_pending (EV_A_ (W)w);
4479 if (expect_false (!ev_is_active (w))) 5035 if (ecb_expect_false (!ev_is_active (w)))
4480 return; 5036 return;
4481 5037
4482 EV_FREQUENT_CHECK; 5038 EV_FREQUENT_CHECK;
4483 5039
4484 { 5040 {
… …
4494} 5050}
4495#endif 5051#endif
4496 5052
4497#if EV_CLEANUP_ENABLE 5053#if EV_CLEANUP_ENABLE
4498void 5054void
4499ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5055ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4500{ 5056{
4501 if (expect_false (ev_is_active (w))) 5057 if (ecb_expect_false (ev_is_active (w)))
4502 return; 5058 return;
4503 5059
4504 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4505 5061
4506 ev_start (EV_A_ (W)w, ++cleanupcnt); 5062 ev_start (EV_A_ (W)w, ++cleanupcnt);
4507 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5063 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4508 cleanups [cleanupcnt - 1] = w; 5064 cleanups [cleanupcnt - 1] = w;
4509 5065
4510 /* cleanup watchers should never keep a refcount on the loop */ 5066 /* cleanup watchers should never keep a refcount on the loop */
4511 ev_unref (EV_A); 5067 ev_unref (EV_A);
4512 EV_FREQUENT_CHECK; 5068 EV_FREQUENT_CHECK;
4513} 5069}
4514 5070
4515void 5071void
4516ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5072ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4517{ 5073{
4518 clear_pending (EV_A_ (W)w); 5074 clear_pending (EV_A_ (W)w);
4519 if (expect_false (!ev_is_active (w))) 5075 if (ecb_expect_false (!ev_is_active (w)))
4520 return; 5076 return;
4521 5077
4522 EV_FREQUENT_CHECK; 5078 EV_FREQUENT_CHECK;
4523 ev_ref (EV_A); 5079 ev_ref (EV_A);
4524 5080
… …
4535} 5091}
4536#endif 5092#endif
4537 5093
4538#if EV_ASYNC_ENABLE 5094#if EV_ASYNC_ENABLE
4539void 5095void
4540ev_async_start (EV_P_ ev_async *w) EV_THROW 5096ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4541{ 5097{
4542 if (expect_false (ev_is_active (w))) 5098 if (ecb_expect_false (ev_is_active (w)))
4543 return; 5099 return;
4544 5100
4545 w->sent = 0; 5101 w->sent = 0;
4546 5102
4547 evpipe_init (EV_A); 5103 evpipe_init (EV_A);
4548 5104
4549 EV_FREQUENT_CHECK; 5105 EV_FREQUENT_CHECK;
4550 5106
4551 ev_start (EV_A_ (W)w, ++asynccnt); 5107 ev_start (EV_A_ (W)w, ++asynccnt);
4552 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5108 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4553 asyncs [asynccnt - 1] = w; 5109 asyncs [asynccnt - 1] = w;
4554 5110
4555 EV_FREQUENT_CHECK; 5111 EV_FREQUENT_CHECK;
4556} 5112}
4557 5113
4558void 5114void
4559ev_async_stop (EV_P_ ev_async *w) EV_THROW 5115ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4560{ 5116{
4561 clear_pending (EV_A_ (W)w); 5117 clear_pending (EV_A_ (W)w);
4562 if (expect_false (!ev_is_active (w))) 5118 if (ecb_expect_false (!ev_is_active (w)))
4563 return; 5119 return;
4564 5120
4565 EV_FREQUENT_CHECK; 5121 EV_FREQUENT_CHECK;
4566 5122
4567 { 5123 {
… …
4575 5131
4576 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4577} 5133}
4578 5134
4579void 5135void
4580ev_async_send (EV_P_ ev_async *w) EV_THROW 5136ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4581{ 5137{
4582 w->sent = 1; 5138 w->sent = 1;
4583 evpipe_write (EV_A_ &async_pending); 5139 evpipe_write (EV_A_ &async_pending);
4584} 5140}
4585#endif 5141#endif
… …
4622 5178
4623 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5179 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4624} 5180}
4625 5181
4626void 5182void
4627ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5183ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4628{ 5184{
4629 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5185 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4630
4631 if (expect_false (!once))
4632 {
4633 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4634 return;
4635 }
4636 5186
4637 once->cb = cb; 5187 once->cb = cb;
4638 once->arg = arg; 5188 once->arg = arg;
4639 5189
4640 ev_init (&once->io, once_cb_io); 5190 ev_init (&once->io, once_cb_io);
… …
4653} 5203}
4654 5204
4655/*****************************************************************************/ 5205/*****************************************************************************/
4656 5206
4657#if EV_WALK_ENABLE 5207#if EV_WALK_ENABLE
4658void ecb_cold 5208ecb_cold
5209void
4659ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5210ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4660{ 5211{
4661 int i, j; 5212 int i, j;
4662 ev_watcher_list *wl, *wn; 5213 ev_watcher_list *wl, *wn;
4663 5214
4664 if (types & (EV_IO | EV_EMBED)) 5215 if (types & (EV_IO | EV_EMBED))

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