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Comparing libev/ev.c (file contents):
Revision 1.469 by root, Fri Sep 5 16:21:19 2014 UTC vs.
Revision 1.525 by root, Wed Jan 22 14:09:07 2020 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 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 *
… …
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 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
183# if HAVE_SYS_TIMERFD_H
184# ifndef EV_USE_TIMERFD
185# define EV_USE_TIMERFD EV_FEATURE_OS
186# endif
187# else
188# undef EV_USE_TIMERFD
189# define EV_USE_TIMERFD 0
165#endif 190# endif
191
192#endif
193
194/* OS X, in its infinite idiocy, actually HARDCODES
195 * a limit of 1024 into their select. Where people have brains,
196 * OS X engineers apparently have a vacuum. Or maybe they were
197 * ordered to have a vacuum, or they do anything for money.
198 * This might help. Or not.
199 * Note that this must be defined early, as other include files
200 * will rely on this define as well.
201 */
202#define _DARWIN_UNLIMITED_SELECT 1
166 203
167#include <stdlib.h> 204#include <stdlib.h>
168#include <string.h> 205#include <string.h>
169#include <fcntl.h> 206#include <fcntl.h>
170#include <stddef.h> 207#include <stddef.h>
… …
208# ifndef EV_SELECT_IS_WINSOCKET 245# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 246# define EV_SELECT_IS_WINSOCKET 1
210# endif 247# endif
211# undef EV_AVOID_STDIO 248# undef EV_AVOID_STDIO
212#endif 249#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
221 250
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 251/* this block tries to deduce configuration from header-defined symbols and defaults */
223 252
224/* try to deduce the maximum number of signals on this platform */ 253/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 254#if defined EV_NSIG
… …
256# else 285# else
257# define EV_USE_CLOCK_SYSCALL 0 286# define EV_USE_CLOCK_SYSCALL 0
258# endif 287# endif
259#endif 288#endif
260 289
290#if !(_POSIX_TIMERS > 0)
291# ifndef EV_USE_MONOTONIC
292# define EV_USE_MONOTONIC 0
293# endif
294# ifndef EV_USE_REALTIME
295# define EV_USE_REALTIME 0
296# endif
297#endif
298
261#ifndef EV_USE_MONOTONIC 299#ifndef EV_USE_MONOTONIC
262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 300# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263# define EV_USE_MONOTONIC EV_FEATURE_OS 301# define EV_USE_MONOTONIC EV_FEATURE_OS
264# else 302# else
265# define EV_USE_MONOTONIC 0 303# define EV_USE_MONOTONIC 0
… …
304 342
305#ifndef EV_USE_PORT 343#ifndef EV_USE_PORT
306# define EV_USE_PORT 0 344# define EV_USE_PORT 0
307#endif 345#endif
308 346
347#ifndef EV_USE_LINUXAIO
348# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
349# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
350# else
351# define EV_USE_LINUXAIO 0
352# endif
353#endif
354
355#ifndef EV_USE_IOURING
356# if __linux /* later checks might disable again */
357# define EV_USE_IOURING 1
358# else
359# define EV_USE_IOURING 0
360# endif
361#endif
362
309#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
311# define EV_USE_INOTIFY EV_FEATURE_OS 365# define EV_USE_INOTIFY EV_FEATURE_OS
312# else 366# else
313# define EV_USE_INOTIFY 0 367# define EV_USE_INOTIFY 0
… …
336# else 390# else
337# define EV_USE_SIGNALFD 0 391# define EV_USE_SIGNALFD 0
338# endif 392# endif
339#endif 393#endif
340 394
395#ifndef EV_USE_TIMERFD
396# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8))
397# define EV_USE_TIMERFD EV_FEATURE_OS
398# else
399# define EV_USE_TIMERFD 0
400# endif
401#endif
402
341#if 0 /* debugging */ 403#if 0 /* debugging */
342# define EV_VERIFY 3 404# define EV_VERIFY 3
343# define EV_USE_4HEAP 1 405# define EV_USE_4HEAP 1
344# define EV_HEAP_CACHE_AT 1 406# define EV_HEAP_CACHE_AT 1
345#endif 407#endif
… …
354 416
355#ifndef EV_HEAP_CACHE_AT 417#ifndef EV_HEAP_CACHE_AT
356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 418# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif 419#endif
358 420
359#ifdef ANDROID 421#ifdef __ANDROID__
360/* supposedly, android doesn't typedef fd_mask */ 422/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT 423# undef EV_USE_SELECT
362# define EV_USE_SELECT 0 424# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 425/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL 426# undef EV_USE_CLOCK_SYSCALL
… …
378# include <sys/syscall.h> 440# include <sys/syscall.h>
379# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
381# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
382# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
383# else 446# else
384# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
385# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
386# endif 449# endif
387#endif 450#endif
… …
401#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
402# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
403# define EV_USE_INOTIFY 0 466# define EV_USE_INOTIFY 0
404#endif 467#endif
405 468
469#if __linux && EV_USE_IOURING
470# include <linux/version.h>
471# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
472# undef EV_USE_IOURING
473# define EV_USE_IOURING 0
474# endif
475#endif
476
406#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
407/* hp-ux has it in sys/time.h, which we unconditionally include above */ 478/* hp-ux has it in sys/time.h, which we unconditionally include above */
408# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
409# include <sys/select.h> 480# include <sys/select.h>
481# endif
482#endif
483
484#if EV_USE_LINUXAIO
485# include <sys/syscall.h>
486# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
487# define EV_NEED_SYSCALL 1
488# else
489# undef EV_USE_LINUXAIO
490# define EV_USE_LINUXAIO 0
491# endif
492#endif
493
494#if EV_USE_IOURING
495# include <sys/syscall.h>
496# if !SYS_io_uring_setup && __linux && !__alpha
497# define SYS_io_uring_setup 425
498# define SYS_io_uring_enter 426
499# define SYS_io_uring_wregister 427
500# endif
501# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
502# define EV_NEED_SYSCALL 1
503# else
504# undef EV_USE_IOURING
505# define EV_USE_IOURING 0
410# endif 506# endif
411#endif 507#endif
412 508
413#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
414# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
419# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
420# endif 516# endif
421#endif 517#endif
422 518
423#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
424/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 520/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
425# include <stdint.h> 521# include <stdint.h>
426# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
427# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
428# endif 524# endif
429# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
435# endif 531# endif
436EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
437#endif 533#endif
438 534
439#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
440/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 536/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
441# include <stdint.h> 537# include <stdint.h>
442# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
443# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
444# endif 540# endif
445# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
447# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
448# else 544# else
449# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
450# endif 546# endif
451# endif 547# endif
452EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); 548EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags);
453 549
454struct signalfd_siginfo 550struct signalfd_siginfo
455{ 551{
456 uint32_t ssi_signo; 552 uint32_t ssi_signo;
457 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
458}; 554};
459#endif 555#endif
460 556
461/**/ 557/* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */
558#if EV_USE_TIMERFD
559# include <sys/timerfd.h>
560/* timerfd is only used for periodics */
561# if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE
562# undef EV_USE_TIMERFD
563# define EV_USE_TIMERFD 0
564# endif
565#endif
566
567/*****************************************************************************/
462 568
463#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
464# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
465#else 571#else
466# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
471 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
472 */ 578 */
473#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
474/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
475 581
476#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 582#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
477#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 583#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
584#define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */
478 585
586/* find a portable timestamp that is "always" in the future but fits into time_t.
587 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
588 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
589#define EV_TSTAMP_HUGE \
590 (sizeof (time_t) >= 8 ? 10000000000000. \
591 : 0 < (time_t)4294967295 ? 4294967295. \
592 : 2147483647.) \
593
594#ifndef EV_TS_CONST
595# define EV_TS_CONST(nv) nv
596# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
597# define EV_TS_FROM_USEC(us) us * 1e-6
479#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 598# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
480#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 599# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
600# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
601# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
602#endif
481 603
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 604/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */ 605/* ECB.H BEGIN */
484/* 606/*
485 * libecb - http://software.schmorp.de/pkg/libecb 607 * libecb - http://software.schmorp.de/pkg/libecb
486 * 608 *
487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> 609 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 610 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 611 * All rights reserved.
490 * 612 *
491 * Redistribution and use in source and binary forms, with or without modifica- 613 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met: 614 * tion, are permitted provided that the following conditions are met:
… …
523 645
524#ifndef ECB_H 646#ifndef ECB_H
525#define ECB_H 647#define ECB_H
526 648
527/* 16 bits major, 16 bits minor */ 649/* 16 bits major, 16 bits minor */
528#define ECB_VERSION 0x00010003 650#define ECB_VERSION 0x00010008
651
652#include <string.h> /* for memcpy */
529 653
530#ifdef _WIN32 654#ifdef _WIN32
531 typedef signed char int8_t; 655 typedef signed char int8_t;
532 typedef unsigned char uint8_t; 656 typedef unsigned char uint8_t;
657 typedef signed char int_fast8_t;
658 typedef unsigned char uint_fast8_t;
533 typedef signed short int16_t; 659 typedef signed short int16_t;
534 typedef unsigned short uint16_t; 660 typedef unsigned short uint16_t;
661 typedef signed int int_fast16_t;
662 typedef unsigned int uint_fast16_t;
535 typedef signed int int32_t; 663 typedef signed int int32_t;
536 typedef unsigned int uint32_t; 664 typedef unsigned int uint32_t;
665 typedef signed int int_fast32_t;
666 typedef unsigned int uint_fast32_t;
537 #if __GNUC__ 667 #if __GNUC__
538 typedef signed long long int64_t; 668 typedef signed long long int64_t;
539 typedef unsigned long long uint64_t; 669 typedef unsigned long long uint64_t;
540 #else /* _MSC_VER || __BORLANDC__ */ 670 #else /* _MSC_VER || __BORLANDC__ */
541 typedef signed __int64 int64_t; 671 typedef signed __int64 int64_t;
542 typedef unsigned __int64 uint64_t; 672 typedef unsigned __int64 uint64_t;
543 #endif 673 #endif
674 typedef int64_t int_fast64_t;
675 typedef uint64_t uint_fast64_t;
544 #ifdef _WIN64 676 #ifdef _WIN64
545 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
546 typedef uint64_t uintptr_t; 678 typedef uint64_t uintptr_t;
547 typedef int64_t intptr_t; 679 typedef int64_t intptr_t;
548 #else 680 #else
… …
550 typedef uint32_t uintptr_t; 682 typedef uint32_t uintptr_t;
551 typedef int32_t intptr_t; 683 typedef int32_t intptr_t;
552 #endif 684 #endif
553#else 685#else
554 #include <inttypes.h> 686 #include <inttypes.h>
555 #if UINTMAX_MAX > 0xffffffffU 687 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
556 #define ECB_PTRSIZE 8 688 #define ECB_PTRSIZE 8
557 #else 689 #else
558 #define ECB_PTRSIZE 4 690 #define ECB_PTRSIZE 4
559 #endif 691 #endif
560#endif 692#endif
561 693
694#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
695#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
696
697#ifndef ECB_OPTIMIZE_SIZE
698 #if __OPTIMIZE_SIZE__
699 #define ECB_OPTIMIZE_SIZE 1
700 #else
701 #define ECB_OPTIMIZE_SIZE 0
702 #endif
703#endif
704
562/* work around x32 idiocy by defining proper macros */ 705/* work around x32 idiocy by defining proper macros */
563#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 706#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
564 #if _ILP32 707 #if _ILP32
565 #define ECB_AMD64_X32 1 708 #define ECB_AMD64_X32 1
566 #else 709 #else
567 #define ECB_AMD64 1 710 #define ECB_AMD64 1
568 #endif 711 #endif
… …
573 * causing enormous grief in return for some better fake benchmark numbers. 716 * causing enormous grief in return for some better fake benchmark numbers.
574 * or so. 717 * or so.
575 * we try to detect these and simply assume they are not gcc - if they have 718 * we try to detect these and simply assume they are not gcc - if they have
576 * an issue with that they should have done it right in the first place. 719 * an issue with that they should have done it right in the first place.
577 */ 720 */
578#ifndef ECB_GCC_VERSION
579 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 721#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
580 #define ECB_GCC_VERSION(major,minor) 0 722 #define ECB_GCC_VERSION(major,minor) 0
581 #else 723#else
582 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 724 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
583 #endif 725#endif
726
727#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
728
729#if __clang__ && defined __has_builtin
730 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
731#else
732 #define ECB_CLANG_BUILTIN(x) 0
733#endif
734
735#if __clang__ && defined __has_extension
736 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
737#else
738 #define ECB_CLANG_EXTENSION(x) 0
584#endif 739#endif
585 740
586#define ECB_CPP (__cplusplus+0) 741#define ECB_CPP (__cplusplus+0)
587#define ECB_CPP11 (__cplusplus >= 201103L) 742#define ECB_CPP11 (__cplusplus >= 201103L)
743#define ECB_CPP14 (__cplusplus >= 201402L)
744#define ECB_CPP17 (__cplusplus >= 201703L)
588 745
589#if ECB_CPP 746#if ECB_CPP
590 #define ECB_C 0 747 #define ECB_C 0
591 #define ECB_STDC_VERSION 0 748 #define ECB_STDC_VERSION 0
592#else 749#else
… …
594 #define ECB_STDC_VERSION __STDC_VERSION__ 751 #define ECB_STDC_VERSION __STDC_VERSION__
595#endif 752#endif
596 753
597#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 754#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
598#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 755#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
756#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
599 757
600#if ECB_CPP 758#if ECB_CPP
601 #define ECB_EXTERN_C extern "C" 759 #define ECB_EXTERN_C extern "C"
602 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 760 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
603 #define ECB_EXTERN_C_END } 761 #define ECB_EXTERN_C_END }
… …
618 776
619#if ECB_NO_SMP 777#if ECB_NO_SMP
620 #define ECB_MEMORY_FENCE do { } while (0) 778 #define ECB_MEMORY_FENCE do { } while (0)
621#endif 779#endif
622 780
781/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
782#if __xlC__ && ECB_CPP
783 #include <builtins.h>
784#endif
785
786#if 1400 <= _MSC_VER
787 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
788#endif
789
623#ifndef ECB_MEMORY_FENCE 790#ifndef ECB_MEMORY_FENCE
624 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 791 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
792 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
625 #if __i386 || __i386__ 793 #if __i386 || __i386__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 794 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 795 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 796 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
629 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 797 #elif ECB_GCC_AMD64
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 798 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
631 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 799 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
632 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 800 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
633 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 801 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 802 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
803 #elif defined __ARM_ARCH_2__ \
804 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
805 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
806 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
807 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
808 || defined __ARM_ARCH_5TEJ__
809 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
635 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 810 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
636 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 811 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
812 || defined __ARM_ARCH_6T2__
637 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 813 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
638 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 814 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
639 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 815 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 816 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
641 #elif __aarch64__ 817 #elif __aarch64__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 818 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
643 #elif (__sparc || __sparc__) && !__sparcv8 819 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 820 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
645 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 821 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
646 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 822 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
647 #elif defined __s390__ || defined __s390x__ 823 #elif defined __s390__ || defined __s390x__
648 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 824 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
671 #if ECB_GCC_VERSION(4,7) 847 #if ECB_GCC_VERSION(4,7)
672 /* see comment below (stdatomic.h) about the C11 memory model. */ 848 /* see comment below (stdatomic.h) about the C11 memory model. */
673 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 849 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
674 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 850 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
675 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 851 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
852 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
676 853
677 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 854 #elif ECB_CLANG_EXTENSION(c_atomic)
678 * without risking compile time errors with other compilers. We *could*
679 * define our own ecb_clang_has_feature, but I just can't be bothered to work
680 * around this shit time and again.
681 * #elif defined __clang && __has_feature (cxx_atomic)
682 * // see comment below (stdatomic.h) about the C11 memory model. 855 /* see comment below (stdatomic.h) about the C11 memory model. */
683 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 856 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
684 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 857 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
685 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 858 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
686 */ 859 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
687 860
688 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 861 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
689 #define ECB_MEMORY_FENCE __sync_synchronize () 862 #define ECB_MEMORY_FENCE __sync_synchronize ()
690 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 863 #elif _MSC_VER >= 1500 /* VC++ 2008 */
691 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 864 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
701 #elif defined _WIN32 874 #elif defined _WIN32
702 #include <WinNT.h> 875 #include <WinNT.h>
703 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 876 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
704 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 877 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
705 #include <mbarrier.h> 878 #include <mbarrier.h>
706 #define ECB_MEMORY_FENCE __machine_rw_barrier () 879 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
707 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 880 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
708 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 881 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
882 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
709 #elif __xlC__ 883 #elif __xlC__
710 #define ECB_MEMORY_FENCE __sync () 884 #define ECB_MEMORY_FENCE __sync ()
711 #endif 885 #endif
712#endif 886#endif
713 887
714#ifndef ECB_MEMORY_FENCE 888#ifndef ECB_MEMORY_FENCE
715 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 889 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
716 /* we assume that these memory fences work on all variables/all memory accesses, */ 890 /* we assume that these memory fences work on all variables/all memory accesses, */
717 /* not just C11 atomics and atomic accesses */ 891 /* not just C11 atomics and atomic accesses */
718 #include <stdatomic.h> 892 #include <stdatomic.h>
719 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
720 /* any fence other than seq_cst, which isn't very efficient for us. */
721 /* Why that is, we don't know - either the C11 memory model is quite useless */
722 /* for most usages, or gcc and clang have a bug */
723 /* I *currently* lean towards the latter, and inefficiently implement */
724 /* all three of ecb's fences as a seq_cst fence */
725 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
726 /* for all __atomic_thread_fence's except seq_cst */
727 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 893 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
894 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
895 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
728 #endif 896 #endif
729#endif 897#endif
730 898
731#ifndef ECB_MEMORY_FENCE 899#ifndef ECB_MEMORY_FENCE
732 #if !ECB_AVOID_PTHREADS 900 #if !ECB_AVOID_PTHREADS
… …
752 920
753#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 921#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
754 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 922 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
755#endif 923#endif
756 924
925#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
926 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
927#endif
928
757/*****************************************************************************/ 929/*****************************************************************************/
758 930
759#if __cplusplus 931#if ECB_CPP
760 #define ecb_inline static inline 932 #define ecb_inline static inline
761#elif ECB_GCC_VERSION(2,5) 933#elif ECB_GCC_VERSION(2,5)
762 #define ecb_inline static __inline__ 934 #define ecb_inline static __inline__
763#elif ECB_C99 935#elif ECB_C99
764 #define ecb_inline static inline 936 #define ecb_inline static inline
… …
778 950
779#define ECB_CONCAT_(a, b) a ## b 951#define ECB_CONCAT_(a, b) a ## b
780#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 952#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
781#define ECB_STRINGIFY_(a) # a 953#define ECB_STRINGIFY_(a) # a
782#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 954#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
955#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
783 956
784#define ecb_function_ ecb_inline 957#define ecb_function_ ecb_inline
785 958
786#if ECB_GCC_VERSION(3,1) 959#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
787 #define ecb_attribute(attrlist) __attribute__(attrlist) 960 #define ecb_attribute(attrlist) __attribute__ (attrlist)
788 #define ecb_is_constant(expr) __builtin_constant_p (expr)
789 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
790 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
791#else 961#else
792 #define ecb_attribute(attrlist) 962 #define ecb_attribute(attrlist)
963#endif
793 964
965#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
966 #define ecb_is_constant(expr) __builtin_constant_p (expr)
967#else
794 /* possible C11 impl for integral types 968 /* possible C11 impl for integral types
795 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 969 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
796 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ 970 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
797 971
798 #define ecb_is_constant(expr) 0 972 #define ecb_is_constant(expr) 0
973#endif
974
975#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
976 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
977#else
799 #define ecb_expect(expr,value) (expr) 978 #define ecb_expect(expr,value) (expr)
979#endif
980
981#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
982 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
983#else
800 #define ecb_prefetch(addr,rw,locality) 984 #define ecb_prefetch(addr,rw,locality)
801#endif 985#endif
802 986
803/* no emulation for ecb_decltype */ 987/* no emulation for ecb_decltype */
804#if ECB_GCC_VERSION(4,5) 988#if ECB_CPP11
989 // older implementations might have problems with decltype(x)::type, work around it
990 template<class T> struct ecb_decltype_t { typedef T type; };
805 #define ecb_decltype(x) __decltype(x) 991 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
806#elif ECB_GCC_VERSION(3,0) 992#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
807 #define ecb_decltype(x) __typeof(x) 993 #define ecb_decltype(x) __typeof__ (x)
808#endif 994#endif
809 995
810#if _MSC_VER >= 1300 996#if _MSC_VER >= 1300
811 #define ecb_deprecated __declspec(deprecated) 997 #define ecb_deprecated __declspec (deprecated)
812#else 998#else
813 #define ecb_deprecated ecb_attribute ((__deprecated__)) 999 #define ecb_deprecated ecb_attribute ((__deprecated__))
814#endif 1000#endif
815 1001
1002#if _MSC_VER >= 1500
1003 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
1004#elif ECB_GCC_VERSION(4,5)
1005 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
1006#else
1007 #define ecb_deprecated_message(msg) ecb_deprecated
1008#endif
1009
1010#if _MSC_VER >= 1400
1011 #define ecb_noinline __declspec (noinline)
1012#else
816#define ecb_noinline ecb_attribute ((__noinline__)) 1013 #define ecb_noinline ecb_attribute ((__noinline__))
1014#endif
1015
817#define ecb_unused ecb_attribute ((__unused__)) 1016#define ecb_unused ecb_attribute ((__unused__))
818#define ecb_const ecb_attribute ((__const__)) 1017#define ecb_const ecb_attribute ((__const__))
819#define ecb_pure ecb_attribute ((__pure__)) 1018#define ecb_pure ecb_attribute ((__pure__))
820 1019
821/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ 1020#if ECB_C11 || __IBMC_NORETURN
822#if ECB_C11 1021 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
823 #define ecb_noreturn _Noreturn 1022 #define ecb_noreturn _Noreturn
1023#elif ECB_CPP11
1024 #define ecb_noreturn [[noreturn]]
1025#elif _MSC_VER >= 1200
1026 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
1027 #define ecb_noreturn __declspec (noreturn)
824#else 1028#else
825 #define ecb_noreturn ecb_attribute ((__noreturn__)) 1029 #define ecb_noreturn ecb_attribute ((__noreturn__))
826#endif 1030#endif
827 1031
828#if ECB_GCC_VERSION(4,3) 1032#if ECB_GCC_VERSION(4,3)
… …
843/* for compatibility to the rest of the world */ 1047/* for compatibility to the rest of the world */
844#define ecb_likely(expr) ecb_expect_true (expr) 1048#define ecb_likely(expr) ecb_expect_true (expr)
845#define ecb_unlikely(expr) ecb_expect_false (expr) 1049#define ecb_unlikely(expr) ecb_expect_false (expr)
846 1050
847/* count trailing zero bits and count # of one bits */ 1051/* count trailing zero bits and count # of one bits */
848#if ECB_GCC_VERSION(3,4) 1052#if ECB_GCC_VERSION(3,4) \
1053 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
1054 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
1055 && ECB_CLANG_BUILTIN(__builtin_popcount))
849 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 1056 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
850 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 1057 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
851 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 1058 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
852 #define ecb_ctz32(x) __builtin_ctz (x) 1059 #define ecb_ctz32(x) __builtin_ctz (x)
853 #define ecb_ctz64(x) __builtin_ctzll (x) 1060 #define ecb_ctz64(x) __builtin_ctzll (x)
854 #define ecb_popcount32(x) __builtin_popcount (x) 1061 #define ecb_popcount32(x) __builtin_popcount (x)
855 /* no popcountll */ 1062 /* no popcountll */
856#else 1063#else
857 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 1064 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
858 ecb_function_ int 1065 ecb_function_ ecb_const int
859 ecb_ctz32 (uint32_t x) 1066 ecb_ctz32 (uint32_t x)
860 { 1067 {
1068#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1069 unsigned long r;
1070 _BitScanForward (&r, x);
1071 return (int)r;
1072#else
861 int r = 0; 1073 int r = 0;
862 1074
863 x &= ~x + 1; /* this isolates the lowest bit */ 1075 x &= ~x + 1; /* this isolates the lowest bit */
864 1076
865#if ECB_branchless_on_i386 1077#if ECB_branchless_on_i386
… …
875 if (x & 0xff00ff00) r += 8; 1087 if (x & 0xff00ff00) r += 8;
876 if (x & 0xffff0000) r += 16; 1088 if (x & 0xffff0000) r += 16;
877#endif 1089#endif
878 1090
879 return r; 1091 return r;
1092#endif
880 } 1093 }
881 1094
882 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 1095 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
883 ecb_function_ int 1096 ecb_function_ ecb_const int
884 ecb_ctz64 (uint64_t x) 1097 ecb_ctz64 (uint64_t x)
885 { 1098 {
1099#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1100 unsigned long r;
1101 _BitScanForward64 (&r, x);
1102 return (int)r;
1103#else
886 int shift = x & 0xffffffffU ? 0 : 32; 1104 int shift = x & 0xffffffff ? 0 : 32;
887 return ecb_ctz32 (x >> shift) + shift; 1105 return ecb_ctz32 (x >> shift) + shift;
1106#endif
888 } 1107 }
889 1108
890 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 1109 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
891 ecb_function_ int 1110 ecb_function_ ecb_const int
892 ecb_popcount32 (uint32_t x) 1111 ecb_popcount32 (uint32_t x)
893 { 1112 {
894 x -= (x >> 1) & 0x55555555; 1113 x -= (x >> 1) & 0x55555555;
895 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 1114 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
896 x = ((x >> 4) + x) & 0x0f0f0f0f; 1115 x = ((x >> 4) + x) & 0x0f0f0f0f;
897 x *= 0x01010101; 1116 x *= 0x01010101;
898 1117
899 return x >> 24; 1118 return x >> 24;
900 } 1119 }
901 1120
902 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 1121 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
903 ecb_function_ int ecb_ld32 (uint32_t x) 1122 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
904 { 1123 {
1124#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1125 unsigned long r;
1126 _BitScanReverse (&r, x);
1127 return (int)r;
1128#else
905 int r = 0; 1129 int r = 0;
906 1130
907 if (x >> 16) { x >>= 16; r += 16; } 1131 if (x >> 16) { x >>= 16; r += 16; }
908 if (x >> 8) { x >>= 8; r += 8; } 1132 if (x >> 8) { x >>= 8; r += 8; }
909 if (x >> 4) { x >>= 4; r += 4; } 1133 if (x >> 4) { x >>= 4; r += 4; }
910 if (x >> 2) { x >>= 2; r += 2; } 1134 if (x >> 2) { x >>= 2; r += 2; }
911 if (x >> 1) { r += 1; } 1135 if (x >> 1) { r += 1; }
912 1136
913 return r; 1137 return r;
1138#endif
914 } 1139 }
915 1140
916 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1141 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
917 ecb_function_ int ecb_ld64 (uint64_t x) 1142 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
918 { 1143 {
1144#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1145 unsigned long r;
1146 _BitScanReverse64 (&r, x);
1147 return (int)r;
1148#else
919 int r = 0; 1149 int r = 0;
920 1150
921 if (x >> 32) { x >>= 32; r += 32; } 1151 if (x >> 32) { x >>= 32; r += 32; }
922 1152
923 return r + ecb_ld32 (x); 1153 return r + ecb_ld32 (x);
1154#endif
924 } 1155 }
925#endif 1156#endif
926 1157
927ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1158ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
928ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1159ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
929ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1160ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
930ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1161ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
931 1162
932ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1163ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
933ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1164ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
934{ 1165{
935 return ( (x * 0x0802U & 0x22110U) 1166 return ( (x * 0x0802U & 0x22110U)
936 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1167 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
937} 1168}
938 1169
939ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1170ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
940ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1171ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
941{ 1172{
942 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1173 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
943 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1174 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
944 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1175 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
945 x = ( x >> 8 ) | ( x << 8); 1176 x = ( x >> 8 ) | ( x << 8);
946 1177
947 return x; 1178 return x;
948} 1179}
949 1180
950ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1181ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
951ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1182ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
952{ 1183{
953 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1184 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
954 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1185 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
955 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1186 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
956 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1187 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
959 return x; 1190 return x;
960} 1191}
961 1192
962/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1193/* popcount64 is only available on 64 bit cpus as gcc builtin */
963/* so for this version we are lazy */ 1194/* so for this version we are lazy */
964ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1195ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
965ecb_function_ int 1196ecb_function_ ecb_const int
966ecb_popcount64 (uint64_t x) 1197ecb_popcount64 (uint64_t x)
967{ 1198{
968 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1199 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
969} 1200}
970 1201
971ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1202ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
972ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1203ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
973ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1204ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
974ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1205ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
975ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1206ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
976ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1207ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
977ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1208ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
978ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1209ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
979 1210
980ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1211ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
981ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1212ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
982ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1213ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
983ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1214ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
984ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1215ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
985ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1216ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
986ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1217ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
987ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1218ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
988 1219
989#if ECB_GCC_VERSION(4,3) 1220#if ECB_CPP
1221
1222inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); }
1223inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); }
1224inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); }
1225inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); }
1226
1227inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); }
1228inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); }
1229inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); }
1230inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); }
1231
1232inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); }
1233inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); }
1234inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); }
1235inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); }
1236
1237inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); }
1238inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); }
1239inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); }
1240inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); }
1241
1242inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); }
1243inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); }
1244inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); }
1245
1246inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); }
1247inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); }
1248inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); }
1249inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); }
1250
1251inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); }
1252inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); }
1253inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); }
1254inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); }
1255
1256#endif
1257
1258#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1259 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1260 #define ecb_bswap16(x) __builtin_bswap16 (x)
1261 #else
990 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1262 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1263 #endif
991 #define ecb_bswap32(x) __builtin_bswap32 (x) 1264 #define ecb_bswap32(x) __builtin_bswap32 (x)
992 #define ecb_bswap64(x) __builtin_bswap64 (x) 1265 #define ecb_bswap64(x) __builtin_bswap64 (x)
1266#elif _MSC_VER
1267 #include <stdlib.h>
1268 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1269 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1270 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
993#else 1271#else
994 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1272 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
995 ecb_function_ uint16_t 1273 ecb_function_ ecb_const uint16_t
996 ecb_bswap16 (uint16_t x) 1274 ecb_bswap16 (uint16_t x)
997 { 1275 {
998 return ecb_rotl16 (x, 8); 1276 return ecb_rotl16 (x, 8);
999 } 1277 }
1000 1278
1001 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1279 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1002 ecb_function_ uint32_t 1280 ecb_function_ ecb_const uint32_t
1003 ecb_bswap32 (uint32_t x) 1281 ecb_bswap32 (uint32_t x)
1004 { 1282 {
1005 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1283 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1006 } 1284 }
1007 1285
1008 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1286 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1009 ecb_function_ uint64_t 1287 ecb_function_ ecb_const uint64_t
1010 ecb_bswap64 (uint64_t x) 1288 ecb_bswap64 (uint64_t x)
1011 { 1289 {
1012 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1290 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1013 } 1291 }
1014#endif 1292#endif
1015 1293
1016#if ECB_GCC_VERSION(4,5) 1294#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1017 #define ecb_unreachable() __builtin_unreachable () 1295 #define ecb_unreachable() __builtin_unreachable ()
1018#else 1296#else
1019 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1297 /* this seems to work fine, but gcc always emits a warning for it :/ */
1020 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1298 ecb_inline ecb_noreturn void ecb_unreachable (void);
1021 ecb_inline void ecb_unreachable (void) { } 1299 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1022#endif 1300#endif
1023 1301
1024/* try to tell the compiler that some condition is definitely true */ 1302/* try to tell the compiler that some condition is definitely true */
1025#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1303#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1026 1304
1027ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1305ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1028ecb_inline unsigned char 1306ecb_inline ecb_const uint32_t
1029ecb_byteorder_helper (void) 1307ecb_byteorder_helper (void)
1030{ 1308{
1031 /* the union code still generates code under pressure in gcc, */ 1309 /* the union code still generates code under pressure in gcc, */
1032 /* but less than using pointers, and always seems to */ 1310 /* but less than using pointers, and always seems to */
1033 /* successfully return a constant. */ 1311 /* successfully return a constant. */
1034 /* the reason why we have this horrible preprocessor mess */ 1312 /* the reason why we have this horrible preprocessor mess */
1035 /* is to avoid it in all cases, at least on common architectures */ 1313 /* is to avoid it in all cases, at least on common architectures */
1036 /* or when using a recent enough gcc version (>= 4.6) */ 1314 /* or when using a recent enough gcc version (>= 4.6) */
1037#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1038 return 0x44;
1039#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1315#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1316 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1317 #define ECB_LITTLE_ENDIAN 1
1040 return 0x44; 1318 return 0x44332211;
1041#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1319#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1320 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1321 #define ECB_BIG_ENDIAN 1
1042 return 0x11; 1322 return 0x11223344;
1043#else 1323#else
1044 union 1324 union
1045 { 1325 {
1326 uint8_t c[4];
1046 uint32_t i; 1327 uint32_t u;
1047 uint8_t c;
1048 } u = { 0x11223344 }; 1328 } u = { 0x11, 0x22, 0x33, 0x44 };
1049 return u.c; 1329 return u.u;
1050#endif 1330#endif
1051} 1331}
1052 1332
1053ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1333ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1054ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1334ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1055ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1335ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1056ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1336ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1337
1338/*****************************************************************************/
1339/* unaligned load/store */
1340
1341ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1342ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1343ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1344
1345ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1346ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1347ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1348
1349ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1350ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1351ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1352
1353ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); }
1354ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); }
1355ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); }
1356
1357ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); }
1358ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); }
1359ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); }
1360
1361ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1362ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1363ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1364
1365ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1366ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1367ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1368
1369ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); }
1370ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); }
1371ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); }
1372
1373ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); }
1374ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); }
1375ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); }
1376
1377ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); }
1378ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); }
1379ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); }
1380
1381#if ECB_CPP
1382
1383inline uint8_t ecb_bswap (uint8_t v) { return v; }
1384inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); }
1385inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); }
1386inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); }
1387
1388template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1389template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1390template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; }
1391template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); }
1392template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); }
1393template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; }
1394template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); }
1395template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); }
1396
1397template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1398template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1399template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; }
1400template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); }
1401template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); }
1402template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); }
1403template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); }
1404template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); }
1405
1406#endif
1407
1408/*****************************************************************************/
1057 1409
1058#if ECB_GCC_VERSION(3,0) || ECB_C99 1410#if ECB_GCC_VERSION(3,0) || ECB_C99
1059 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1411 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1060#else 1412#else
1061 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1413 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1062#endif 1414#endif
1063 1415
1064#if __cplusplus 1416#if ECB_CPP
1065 template<typename T> 1417 template<typename T>
1066 static inline T ecb_div_rd (T val, T div) 1418 static inline T ecb_div_rd (T val, T div)
1067 { 1419 {
1068 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1420 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1069 } 1421 }
… …
1086 } 1438 }
1087#else 1439#else
1088 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1440 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1089#endif 1441#endif
1090 1442
1443/*****************************************************************************/
1444
1445ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1446ecb_function_ ecb_const uint32_t
1447ecb_binary16_to_binary32 (uint32_t x)
1448{
1449 unsigned int s = (x & 0x8000) << (31 - 15);
1450 int e = (x >> 10) & 0x001f;
1451 unsigned int m = x & 0x03ff;
1452
1453 if (ecb_expect_false (e == 31))
1454 /* infinity or NaN */
1455 e = 255 - (127 - 15);
1456 else if (ecb_expect_false (!e))
1457 {
1458 if (ecb_expect_true (!m))
1459 /* zero, handled by code below by forcing e to 0 */
1460 e = 0 - (127 - 15);
1461 else
1462 {
1463 /* subnormal, renormalise */
1464 unsigned int s = 10 - ecb_ld32 (m);
1465
1466 m = (m << s) & 0x3ff; /* mask implicit bit */
1467 e -= s - 1;
1468 }
1469 }
1470
1471 /* e and m now are normalised, or zero, (or inf or nan) */
1472 e += 127 - 15;
1473
1474 return s | (e << 23) | (m << (23 - 10));
1475}
1476
1477ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1478ecb_function_ ecb_const uint16_t
1479ecb_binary32_to_binary16 (uint32_t x)
1480{
1481 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1482 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1483 unsigned int m = x & 0x007fffff;
1484
1485 x &= 0x7fffffff;
1486
1487 /* if it's within range of binary16 normals, use fast path */
1488 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1489 {
1490 /* mantissa round-to-even */
1491 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1492
1493 /* handle overflow */
1494 if (ecb_expect_false (m >= 0x00800000))
1495 {
1496 m >>= 1;
1497 e += 1;
1498 }
1499
1500 return s | (e << 10) | (m >> (23 - 10));
1501 }
1502
1503 /* handle large numbers and infinity */
1504 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1505 return s | 0x7c00;
1506
1507 /* handle zero, subnormals and small numbers */
1508 if (ecb_expect_true (x < 0x38800000))
1509 {
1510 /* zero */
1511 if (ecb_expect_true (!x))
1512 return s;
1513
1514 /* handle subnormals */
1515
1516 /* too small, will be zero */
1517 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1518 return s;
1519
1520 m |= 0x00800000; /* make implicit bit explicit */
1521
1522 /* very tricky - we need to round to the nearest e (+10) bit value */
1523 {
1524 unsigned int bits = 14 - e;
1525 unsigned int half = (1 << (bits - 1)) - 1;
1526 unsigned int even = (m >> bits) & 1;
1527
1528 /* if this overflows, we will end up with a normalised number */
1529 m = (m + half + even) >> bits;
1530 }
1531
1532 return s | m;
1533 }
1534
1535 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1536 m >>= 13;
1537
1538 return s | 0x7c00 | m | !m;
1539}
1540
1091/*******************************************************************************/ 1541/*******************************************************************************/
1092/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1542/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1093 1543
1094/* basically, everything uses "ieee pure-endian" floating point numbers */ 1544/* basically, everything uses "ieee pure-endian" floating point numbers */
1095/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1545/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1096#if 0 \ 1546#if 0 \
1097 || __i386 || __i386__ \ 1547 || __i386 || __i386__ \
1098 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1548 || ECB_GCC_AMD64 \
1099 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1549 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1100 || defined __s390__ || defined __s390x__ \ 1550 || defined __s390__ || defined __s390x__ \
1101 || defined __mips__ \ 1551 || defined __mips__ \
1102 || defined __alpha__ \ 1552 || defined __alpha__ \
1103 || defined __hppa__ \ 1553 || defined __hppa__ \
1104 || defined __ia64__ \ 1554 || defined __ia64__ \
1105 || defined __m68k__ \ 1555 || defined __m68k__ \
1106 || defined __m88k__ \ 1556 || defined __m88k__ \
1107 || defined __sh__ \ 1557 || defined __sh__ \
1108 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1558 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1109 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1559 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1110 || defined __aarch64__ 1560 || defined __aarch64__
1111 #define ECB_STDFP 1 1561 #define ECB_STDFP 1
1112 #include <string.h> /* for memcpy */
1113#else 1562#else
1114 #define ECB_STDFP 0 1563 #define ECB_STDFP 0
1115#endif 1564#endif
1116 1565
1117#ifndef ECB_NO_LIBM 1566#ifndef ECB_NO_LIBM
… …
1129 #define ECB_NAN NAN 1578 #define ECB_NAN NAN
1130 #else 1579 #else
1131 #define ECB_NAN ECB_INFINITY 1580 #define ECB_NAN ECB_INFINITY
1132 #endif 1581 #endif
1133 1582
1134 /* converts an ieee half/binary16 to a float */ 1583 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1135 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1584 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1136 ecb_function_ float 1585 #define ecb_frexpf(x,e) frexpf ((x), (e))
1137 ecb_binary16_to_float (uint16_t x) 1586 #else
1138 { 1587 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1139 int e = (x >> 10) & 0x1f; 1588 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1140 int m = x & 0x3ff; 1589 #endif
1141 float r;
1142
1143 if (!e ) r = ldexpf (m , -24);
1144 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1145 else if (m ) r = ECB_NAN;
1146 else r = ECB_INFINITY;
1147
1148 return x & 0x8000 ? -r : r;
1149 }
1150 1590
1151 /* convert a float to ieee single/binary32 */ 1591 /* convert a float to ieee single/binary32 */
1152 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1592 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1153 ecb_function_ uint32_t 1593 ecb_function_ ecb_const uint32_t
1154 ecb_float_to_binary32 (float x) 1594 ecb_float_to_binary32 (float x)
1155 { 1595 {
1156 uint32_t r; 1596 uint32_t r;
1157 1597
1158 #if ECB_STDFP 1598 #if ECB_STDFP
… …
1165 if (x == 0e0f ) return 0x00000000U; 1605 if (x == 0e0f ) return 0x00000000U;
1166 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1606 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1167 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1607 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1168 if (x != x ) return 0x7fbfffffU; 1608 if (x != x ) return 0x7fbfffffU;
1169 1609
1170 m = frexpf (x, &e) * 0x1000000U; 1610 m = ecb_frexpf (x, &e) * 0x1000000U;
1171 1611
1172 r = m & 0x80000000U; 1612 r = m & 0x80000000U;
1173 1613
1174 if (r) 1614 if (r)
1175 m = -m; 1615 m = -m;
… …
1187 1627
1188 return r; 1628 return r;
1189 } 1629 }
1190 1630
1191 /* converts an ieee single/binary32 to a float */ 1631 /* converts an ieee single/binary32 to a float */
1192 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1632 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1193 ecb_function_ float 1633 ecb_function_ ecb_const float
1194 ecb_binary32_to_float (uint32_t x) 1634 ecb_binary32_to_float (uint32_t x)
1195 { 1635 {
1196 float r; 1636 float r;
1197 1637
1198 #if ECB_STDFP 1638 #if ECB_STDFP
… …
1208 x |= 0x800000U; 1648 x |= 0x800000U;
1209 else 1649 else
1210 e = 1; 1650 e = 1;
1211 1651
1212 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1652 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1213 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1653 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1214 1654
1215 r = neg ? -r : r; 1655 r = neg ? -r : r;
1216 #endif 1656 #endif
1217 1657
1218 return r; 1658 return r;
1219 } 1659 }
1220 1660
1221 /* convert a double to ieee double/binary64 */ 1661 /* convert a double to ieee double/binary64 */
1222 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1662 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1223 ecb_function_ uint64_t 1663 ecb_function_ ecb_const uint64_t
1224 ecb_double_to_binary64 (double x) 1664 ecb_double_to_binary64 (double x)
1225 { 1665 {
1226 uint64_t r; 1666 uint64_t r;
1227 1667
1228 #if ECB_STDFP 1668 #if ECB_STDFP
… …
1257 1697
1258 return r; 1698 return r;
1259 } 1699 }
1260 1700
1261 /* converts an ieee double/binary64 to a double */ 1701 /* converts an ieee double/binary64 to a double */
1262 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1702 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1263 ecb_function_ double 1703 ecb_function_ ecb_const double
1264 ecb_binary64_to_double (uint64_t x) 1704 ecb_binary64_to_double (uint64_t x)
1265 { 1705 {
1266 double r; 1706 double r;
1267 1707
1268 #if ECB_STDFP 1708 #if ECB_STDFP
… …
1286 #endif 1726 #endif
1287 1727
1288 return r; 1728 return r;
1289 } 1729 }
1290 1730
1731 /* convert a float to ieee half/binary16 */
1732 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1733 ecb_function_ ecb_const uint16_t
1734 ecb_float_to_binary16 (float x)
1735 {
1736 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1737 }
1738
1739 /* convert an ieee half/binary16 to float */
1740 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1741 ecb_function_ ecb_const float
1742 ecb_binary16_to_float (uint16_t x)
1743 {
1744 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1745 }
1746
1291#endif 1747#endif
1292 1748
1293#endif 1749#endif
1294 1750
1295/* ECB.H END */ 1751/* ECB.H END */
1296 1752
1297#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1753#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1298/* if your architecture doesn't need memory fences, e.g. because it is 1754/* if your architecture doesn't need memory fences, e.g. because it is
1299 * single-cpu/core, or if you use libev in a project that doesn't use libev 1755 * single-cpu/core, or if you use libev in a project that doesn't use libev
1300 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1756 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1301 * libev, in which cases the memory fences become nops. 1757 * libev, in which cases the memory fences become nops.
1302 * alternatively, you can remove this #error and link against libpthread, 1758 * alternatively, you can remove this #error and link against libpthread,
1303 * which will then provide the memory fences. 1759 * which will then provide the memory fences.
1304 */ 1760 */
1305# error "memory fences not defined for your architecture, please report" 1761# error "memory fences not defined for your architecture, please report"
… …
1309# define ECB_MEMORY_FENCE do { } while (0) 1765# define ECB_MEMORY_FENCE do { } while (0)
1310# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1766# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1311# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1767# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1312#endif 1768#endif
1313 1769
1314#define expect_false(cond) ecb_expect_false (cond)
1315#define expect_true(cond) ecb_expect_true (cond)
1316#define noinline ecb_noinline
1317
1318#define inline_size ecb_inline 1770#define inline_size ecb_inline
1319 1771
1320#if EV_FEATURE_CODE 1772#if EV_FEATURE_CODE
1321# define inline_speed ecb_inline 1773# define inline_speed ecb_inline
1322#else 1774#else
1323# define inline_speed static noinline 1775# define inline_speed ecb_noinline static
1324#endif 1776#endif
1777
1778/*****************************************************************************/
1779/* raw syscall wrappers */
1780
1781#if EV_NEED_SYSCALL
1782
1783#include <sys/syscall.h>
1784
1785/*
1786 * define some syscall wrappers for common architectures
1787 * this is mostly for nice looks during debugging, not performance.
1788 * our syscalls return < 0, not == -1, on error. which is good
1789 * enough for linux aio.
1790 * TODO: arm is also common nowadays, maybe even mips and x86
1791 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1792 */
1793#if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE
1794 /* the costly errno access probably kills this for size optimisation */
1795
1796 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1797 ({ \
1798 long res; \
1799 register unsigned long r6 __asm__ ("r9" ); \
1800 register unsigned long r5 __asm__ ("r8" ); \
1801 register unsigned long r4 __asm__ ("r10"); \
1802 register unsigned long r3 __asm__ ("rdx"); \
1803 register unsigned long r2 __asm__ ("rsi"); \
1804 register unsigned long r1 __asm__ ("rdi"); \
1805 if (narg >= 6) r6 = (unsigned long)(arg6); \
1806 if (narg >= 5) r5 = (unsigned long)(arg5); \
1807 if (narg >= 4) r4 = (unsigned long)(arg4); \
1808 if (narg >= 3) r3 = (unsigned long)(arg3); \
1809 if (narg >= 2) r2 = (unsigned long)(arg2); \
1810 if (narg >= 1) r1 = (unsigned long)(arg1); \
1811 __asm__ __volatile__ ( \
1812 "syscall\n\t" \
1813 : "=a" (res) \
1814 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1815 : "cc", "r11", "cx", "memory"); \
1816 errno = -res; \
1817 res; \
1818 })
1819
1820#endif
1821
1822#ifdef ev_syscall
1823 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1824 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1825 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1826 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1827 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1828 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1829 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1830#else
1831 #define ev_syscall0(nr) syscall (nr)
1832 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1833 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1834 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1835 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1836 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1837 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1838#endif
1839
1840#endif
1841
1842/*****************************************************************************/
1325 1843
1326#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1844#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1327 1845
1328#if EV_MINPRI == EV_MAXPRI 1846#if EV_MINPRI == EV_MAXPRI
1329# define ABSPRI(w) (((W)w), 0) 1847# define ABSPRI(w) (((W)w), 0)
1330#else 1848#else
1331# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1849# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1332#endif 1850#endif
1333 1851
1334#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1852#define EMPTY /* required for microsofts broken pseudo-c compiler */
1335#define EMPTY2(a,b) /* used to suppress some warnings */
1336 1853
1337typedef ev_watcher *W; 1854typedef ev_watcher *W;
1338typedef ev_watcher_list *WL; 1855typedef ev_watcher_list *WL;
1339typedef ev_watcher_time *WT; 1856typedef ev_watcher_time *WT;
1340 1857
… …
1365# include "ev_win32.c" 1882# include "ev_win32.c"
1366#endif 1883#endif
1367 1884
1368/*****************************************************************************/ 1885/*****************************************************************************/
1369 1886
1887#if EV_USE_LINUXAIO
1888# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1889#endif
1890
1370/* define a suitable floor function (only used by periodics atm) */ 1891/* define a suitable floor function (only used by periodics atm) */
1371 1892
1372#if EV_USE_FLOOR 1893#if EV_USE_FLOOR
1373# include <math.h> 1894# include <math.h>
1374# define ev_floor(v) floor (v) 1895# define ev_floor(v) floor (v)
1375#else 1896#else
1376 1897
1377#include <float.h> 1898#include <float.h>
1378 1899
1379/* a floor() replacement function, should be independent of ev_tstamp type */ 1900/* a floor() replacement function, should be independent of ev_tstamp type */
1901ecb_noinline
1380static ev_tstamp noinline 1902static ev_tstamp
1381ev_floor (ev_tstamp v) 1903ev_floor (ev_tstamp v)
1382{ 1904{
1383 /* the choice of shift factor is not terribly important */ 1905 /* the choice of shift factor is not terribly important */
1384#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1906#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1385 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1907 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1386#else 1908#else
1387 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1909 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1388#endif 1910#endif
1389 1911
1912 /* special treatment for negative arguments */
1913 if (ecb_expect_false (v < 0.))
1914 {
1915 ev_tstamp f = -ev_floor (-v);
1916
1917 return f - (f == v ? 0 : 1);
1918 }
1919
1390 /* argument too large for an unsigned long? */ 1920 /* argument too large for an unsigned long? then reduce it */
1391 if (expect_false (v >= shift)) 1921 if (ecb_expect_false (v >= shift))
1392 { 1922 {
1393 ev_tstamp f; 1923 ev_tstamp f;
1394 1924
1395 if (v == v - 1.) 1925 if (v == v - 1.)
1396 return v; /* very large number */ 1926 return v; /* very large numbers are assumed to be integer */
1397 1927
1398 f = shift * ev_floor (v * (1. / shift)); 1928 f = shift * ev_floor (v * (1. / shift));
1399 return f + ev_floor (v - f); 1929 return f + ev_floor (v - f);
1400 } 1930 }
1401 1931
1402 /* special treatment for negative args? */
1403 if (expect_false (v < 0.))
1404 {
1405 ev_tstamp f = -ev_floor (-v);
1406
1407 return f - (f == v ? 0 : 1);
1408 }
1409
1410 /* fits into an unsigned long */ 1932 /* fits into an unsigned long */
1411 return (unsigned long)v; 1933 return (unsigned long)v;
1412} 1934}
1413 1935
1414#endif 1936#endif
… …
1417 1939
1418#ifdef __linux 1940#ifdef __linux
1419# include <sys/utsname.h> 1941# include <sys/utsname.h>
1420#endif 1942#endif
1421 1943
1422static unsigned int noinline ecb_cold 1944ecb_noinline ecb_cold
1945static unsigned int
1423ev_linux_version (void) 1946ev_linux_version (void)
1424{ 1947{
1425#ifdef __linux 1948#ifdef __linux
1426 unsigned int v = 0; 1949 unsigned int v = 0;
1427 struct utsname buf; 1950 struct utsname buf;
… …
1456} 1979}
1457 1980
1458/*****************************************************************************/ 1981/*****************************************************************************/
1459 1982
1460#if EV_AVOID_STDIO 1983#if EV_AVOID_STDIO
1461static void noinline ecb_cold 1984ecb_noinline ecb_cold
1985static void
1462ev_printerr (const char *msg) 1986ev_printerr (const char *msg)
1463{ 1987{
1464 write (STDERR_FILENO, msg, strlen (msg)); 1988 write (STDERR_FILENO, msg, strlen (msg));
1465} 1989}
1466#endif 1990#endif
1467 1991
1468static void (*syserr_cb)(const char *msg) EV_THROW; 1992static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1469 1993
1470void ecb_cold 1994ecb_cold
1995void
1471ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1996ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1472{ 1997{
1473 syserr_cb = cb; 1998 syserr_cb = cb;
1474} 1999}
1475 2000
1476static void noinline ecb_cold 2001ecb_noinline ecb_cold
2002static void
1477ev_syserr (const char *msg) 2003ev_syserr (const char *msg)
1478{ 2004{
1479 if (!msg) 2005 if (!msg)
1480 msg = "(libev) system error"; 2006 msg = "(libev) system error";
1481 2007
… …
1494 abort (); 2020 abort ();
1495 } 2021 }
1496} 2022}
1497 2023
1498static void * 2024static void *
1499ev_realloc_emul (void *ptr, long size) EV_THROW 2025ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1500{ 2026{
1501 /* some systems, notably openbsd and darwin, fail to properly 2027 /* some systems, notably openbsd and darwin, fail to properly
1502 * implement realloc (x, 0) (as required by both ansi c-89 and 2028 * implement realloc (x, 0) (as required by both ansi c-89 and
1503 * the single unix specification, so work around them here. 2029 * the single unix specification, so work around them here.
1504 * recently, also (at least) fedora and debian started breaking it, 2030 * recently, also (at least) fedora and debian started breaking it,
… …
1510 2036
1511 free (ptr); 2037 free (ptr);
1512 return 0; 2038 return 0;
1513} 2039}
1514 2040
1515static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 2041static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1516 2042
1517void ecb_cold 2043ecb_cold
2044void
1518ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 2045ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1519{ 2046{
1520 alloc = cb; 2047 alloc = cb;
1521} 2048}
1522 2049
1523inline_speed void * 2050inline_speed void *
… …
1550typedef struct 2077typedef struct
1551{ 2078{
1552 WL head; 2079 WL head;
1553 unsigned char events; /* the events watched for */ 2080 unsigned char events; /* the events watched for */
1554 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 2081 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1555 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 2082 unsigned char emask; /* some backends store the actual kernel mask in here */
1556 unsigned char unused; 2083 unsigned char eflags; /* flags field for use by backends */
1557#if EV_USE_EPOLL 2084#if EV_USE_EPOLL
1558 unsigned int egen; /* generation counter to counter epoll bugs */ 2085 unsigned int egen; /* generation counter to counter epoll bugs */
1559#endif 2086#endif
1560#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2087#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1561 SOCKET handle; 2088 SOCKET handle;
… …
1615 static struct ev_loop default_loop_struct; 2142 static struct ev_loop default_loop_struct;
1616 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 2143 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1617 2144
1618#else 2145#else
1619 2146
1620 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 2147 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1621 #define VAR(name,decl) static decl; 2148 #define VAR(name,decl) static decl;
1622 #include "ev_vars.h" 2149 #include "ev_vars.h"
1623 #undef VAR 2150 #undef VAR
1624 2151
1625 static int ev_default_loop_ptr; 2152 static int ev_default_loop_ptr;
1626 2153
1627#endif 2154#endif
1628 2155
1629#if EV_FEATURE_API 2156#if EV_FEATURE_API
1630# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2157# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1631# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2158# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1632# define EV_INVOKE_PENDING invoke_cb (EV_A) 2159# define EV_INVOKE_PENDING invoke_cb (EV_A)
1633#else 2160#else
1634# define EV_RELEASE_CB (void)0 2161# define EV_RELEASE_CB (void)0
1635# define EV_ACQUIRE_CB (void)0 2162# define EV_ACQUIRE_CB (void)0
1636# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2163# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1640 2167
1641/*****************************************************************************/ 2168/*****************************************************************************/
1642 2169
1643#ifndef EV_HAVE_EV_TIME 2170#ifndef EV_HAVE_EV_TIME
1644ev_tstamp 2171ev_tstamp
1645ev_time (void) EV_THROW 2172ev_time (void) EV_NOEXCEPT
1646{ 2173{
1647#if EV_USE_REALTIME 2174#if EV_USE_REALTIME
1648 if (expect_true (have_realtime)) 2175 if (ecb_expect_true (have_realtime))
1649 { 2176 {
1650 struct timespec ts; 2177 struct timespec ts;
1651 clock_gettime (CLOCK_REALTIME, &ts); 2178 clock_gettime (CLOCK_REALTIME, &ts);
1652 return ts.tv_sec + ts.tv_nsec * 1e-9; 2179 return EV_TS_GET (ts);
1653 } 2180 }
1654#endif 2181#endif
1655 2182
2183 {
1656 struct timeval tv; 2184 struct timeval tv;
1657 gettimeofday (&tv, 0); 2185 gettimeofday (&tv, 0);
1658 return tv.tv_sec + tv.tv_usec * 1e-6; 2186 return EV_TV_GET (tv);
2187 }
1659} 2188}
1660#endif 2189#endif
1661 2190
1662inline_size ev_tstamp 2191inline_size ev_tstamp
1663get_clock (void) 2192get_clock (void)
1664{ 2193{
1665#if EV_USE_MONOTONIC 2194#if EV_USE_MONOTONIC
1666 if (expect_true (have_monotonic)) 2195 if (ecb_expect_true (have_monotonic))
1667 { 2196 {
1668 struct timespec ts; 2197 struct timespec ts;
1669 clock_gettime (CLOCK_MONOTONIC, &ts); 2198 clock_gettime (CLOCK_MONOTONIC, &ts);
1670 return ts.tv_sec + ts.tv_nsec * 1e-9; 2199 return EV_TS_GET (ts);
1671 } 2200 }
1672#endif 2201#endif
1673 2202
1674 return ev_time (); 2203 return ev_time ();
1675} 2204}
1676 2205
1677#if EV_MULTIPLICITY 2206#if EV_MULTIPLICITY
1678ev_tstamp 2207ev_tstamp
1679ev_now (EV_P) EV_THROW 2208ev_now (EV_P) EV_NOEXCEPT
1680{ 2209{
1681 return ev_rt_now; 2210 return ev_rt_now;
1682} 2211}
1683#endif 2212#endif
1684 2213
1685void 2214void
1686ev_sleep (ev_tstamp delay) EV_THROW 2215ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1687{ 2216{
1688 if (delay > 0.) 2217 if (delay > EV_TS_CONST (0.))
1689 { 2218 {
1690#if EV_USE_NANOSLEEP 2219#if EV_USE_NANOSLEEP
1691 struct timespec ts; 2220 struct timespec ts;
1692 2221
1693 EV_TS_SET (ts, delay); 2222 EV_TS_SET (ts, delay);
1694 nanosleep (&ts, 0); 2223 nanosleep (&ts, 0);
1695#elif defined _WIN32 2224#elif defined _WIN32
2225 /* maybe this should round up, as ms is very low resolution */
2226 /* compared to select (µs) or nanosleep (ns) */
1696 Sleep ((unsigned long)(delay * 1e3)); 2227 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1697#else 2228#else
1698 struct timeval tv; 2229 struct timeval tv;
1699 2230
1700 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2231 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1701 /* something not guaranteed by newer posix versions, but guaranteed */ 2232 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1731 } 2262 }
1732 2263
1733 return ncur; 2264 return ncur;
1734} 2265}
1735 2266
1736static void * noinline ecb_cold 2267ecb_noinline ecb_cold
2268static void *
1737array_realloc (int elem, void *base, int *cur, int cnt) 2269array_realloc (int elem, void *base, int *cur, int cnt)
1738{ 2270{
1739 *cur = array_nextsize (elem, *cur, cnt); 2271 *cur = array_nextsize (elem, *cur, cnt);
1740 return ev_realloc (base, elem * *cur); 2272 return ev_realloc (base, elem * *cur);
1741} 2273}
1742 2274
2275#define array_needsize_noinit(base,offset,count)
2276
1743#define array_init_zero(base,count) \ 2277#define array_needsize_zerofill(base,offset,count) \
1744 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2278 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1745 2279
1746#define array_needsize(type,base,cur,cnt,init) \ 2280#define array_needsize(type,base,cur,cnt,init) \
1747 if (expect_false ((cnt) > (cur))) \ 2281 if (ecb_expect_false ((cnt) > (cur))) \
1748 { \ 2282 { \
1749 int ecb_unused ocur_ = (cur); \ 2283 ecb_unused int ocur_ = (cur); \
1750 (base) = (type *)array_realloc \ 2284 (base) = (type *)array_realloc \
1751 (sizeof (type), (base), &(cur), (cnt)); \ 2285 (sizeof (type), (base), &(cur), (cnt)); \
1752 init ((base) + (ocur_), (cur) - ocur_); \ 2286 init ((base), ocur_, ((cur) - ocur_)); \
1753 } 2287 }
1754 2288
1755#if 0 2289#if 0
1756#define array_slim(type,stem) \ 2290#define array_slim(type,stem) \
1757 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2291 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1766 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2300 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1767 2301
1768/*****************************************************************************/ 2302/*****************************************************************************/
1769 2303
1770/* dummy callback for pending events */ 2304/* dummy callback for pending events */
1771static void noinline 2305ecb_noinline
2306static void
1772pendingcb (EV_P_ ev_prepare *w, int revents) 2307pendingcb (EV_P_ ev_prepare *w, int revents)
1773{ 2308{
1774} 2309}
1775 2310
1776void noinline 2311ecb_noinline
2312void
1777ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2313ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1778{ 2314{
1779 W w_ = (W)w; 2315 W w_ = (W)w;
1780 int pri = ABSPRI (w_); 2316 int pri = ABSPRI (w_);
1781 2317
1782 if (expect_false (w_->pending)) 2318 if (ecb_expect_false (w_->pending))
1783 pendings [pri][w_->pending - 1].events |= revents; 2319 pendings [pri][w_->pending - 1].events |= revents;
1784 else 2320 else
1785 { 2321 {
1786 w_->pending = ++pendingcnt [pri]; 2322 w_->pending = ++pendingcnt [pri];
1787 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2323 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1788 pendings [pri][w_->pending - 1].w = w_; 2324 pendings [pri][w_->pending - 1].w = w_;
1789 pendings [pri][w_->pending - 1].events = revents; 2325 pendings [pri][w_->pending - 1].events = revents;
1790 } 2326 }
1791 2327
1792 pendingpri = NUMPRI - 1; 2328 pendingpri = NUMPRI - 1;
1793} 2329}
1794 2330
1795inline_speed void 2331inline_speed void
1796feed_reverse (EV_P_ W w) 2332feed_reverse (EV_P_ W w)
1797{ 2333{
1798 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2334 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1799 rfeeds [rfeedcnt++] = w; 2335 rfeeds [rfeedcnt++] = w;
1800} 2336}
1801 2337
1802inline_size void 2338inline_size void
1803feed_reverse_done (EV_P_ int revents) 2339feed_reverse_done (EV_P_ int revents)
… …
1838inline_speed void 2374inline_speed void
1839fd_event (EV_P_ int fd, int revents) 2375fd_event (EV_P_ int fd, int revents)
1840{ 2376{
1841 ANFD *anfd = anfds + fd; 2377 ANFD *anfd = anfds + fd;
1842 2378
1843 if (expect_true (!anfd->reify)) 2379 if (ecb_expect_true (!anfd->reify))
1844 fd_event_nocheck (EV_A_ fd, revents); 2380 fd_event_nocheck (EV_A_ fd, revents);
1845} 2381}
1846 2382
1847void 2383void
1848ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2384ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1849{ 2385{
1850 if (fd >= 0 && fd < anfdmax) 2386 if (fd >= 0 && fd < anfdmax)
1851 fd_event_nocheck (EV_A_ fd, revents); 2387 fd_event_nocheck (EV_A_ fd, revents);
1852} 2388}
1853 2389
… …
1856inline_size void 2392inline_size void
1857fd_reify (EV_P) 2393fd_reify (EV_P)
1858{ 2394{
1859 int i; 2395 int i;
1860 2396
2397 /* most backends do not modify the fdchanges list in backend_modfiy.
2398 * except io_uring, which has fixed-size buffers which might force us
2399 * to handle events in backend_modify, causing fdchanges to be amended,
2400 * which could result in an endless loop.
2401 * to avoid this, we do not dynamically handle fds that were added
2402 * during fd_reify. that means that for those backends, fdchangecnt
2403 * might be non-zero during poll, which must cause them to not block.
2404 * to not put too much of a burden on other backends, this detail
2405 * needs to be handled in the backend.
2406 */
2407 int changecnt = fdchangecnt;
2408
1861#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2409#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1862 for (i = 0; i < fdchangecnt; ++i) 2410 for (i = 0; i < changecnt; ++i)
1863 { 2411 {
1864 int fd = fdchanges [i]; 2412 int fd = fdchanges [i];
1865 ANFD *anfd = anfds + fd; 2413 ANFD *anfd = anfds + fd;
1866 2414
1867 if (anfd->reify & EV__IOFDSET && anfd->head) 2415 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
1881 } 2429 }
1882 } 2430 }
1883 } 2431 }
1884#endif 2432#endif
1885 2433
1886 for (i = 0; i < fdchangecnt; ++i) 2434 for (i = 0; i < changecnt; ++i)
1887 { 2435 {
1888 int fd = fdchanges [i]; 2436 int fd = fdchanges [i];
1889 ANFD *anfd = anfds + fd; 2437 ANFD *anfd = anfds + fd;
1890 ev_io *w; 2438 ev_io *w;
1891 2439
1892 unsigned char o_events = anfd->events; 2440 unsigned char o_events = anfd->events;
1893 unsigned char o_reify = anfd->reify; 2441 unsigned char o_reify = anfd->reify;
1894 2442
1895 anfd->reify = 0; 2443 anfd->reify = 0;
1896 2444
1897 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2445 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1898 { 2446 {
1899 anfd->events = 0; 2447 anfd->events = 0;
1900 2448
1901 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2449 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1902 anfd->events |= (unsigned char)w->events; 2450 anfd->events |= (unsigned char)w->events;
… …
1907 2455
1908 if (o_reify & EV__IOFDSET) 2456 if (o_reify & EV__IOFDSET)
1909 backend_modify (EV_A_ fd, o_events, anfd->events); 2457 backend_modify (EV_A_ fd, o_events, anfd->events);
1910 } 2458 }
1911 2459
2460 /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added.
2461 * this is a rare case (see beginning comment in this function), so we copy them to the
2462 * front and hope the backend handles this case.
2463 */
2464 if (ecb_expect_false (fdchangecnt != changecnt))
2465 memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges));
2466
1912 fdchangecnt = 0; 2467 fdchangecnt -= changecnt;
1913} 2468}
1914 2469
1915/* something about the given fd changed */ 2470/* something about the given fd changed */
1916inline_size void 2471inline_size
2472void
1917fd_change (EV_P_ int fd, int flags) 2473fd_change (EV_P_ int fd, int flags)
1918{ 2474{
1919 unsigned char reify = anfds [fd].reify; 2475 unsigned char reify = anfds [fd].reify;
1920 anfds [fd].reify |= flags; 2476 anfds [fd].reify |= flags;
1921 2477
1922 if (expect_true (!reify)) 2478 if (ecb_expect_true (!reify))
1923 { 2479 {
1924 ++fdchangecnt; 2480 ++fdchangecnt;
1925 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2481 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1926 fdchanges [fdchangecnt - 1] = fd; 2482 fdchanges [fdchangecnt - 1] = fd;
1927 } 2483 }
1928} 2484}
1929 2485
1930/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2486/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1931inline_speed void ecb_cold 2487inline_speed ecb_cold void
1932fd_kill (EV_P_ int fd) 2488fd_kill (EV_P_ int fd)
1933{ 2489{
1934 ev_io *w; 2490 ev_io *w;
1935 2491
1936 while ((w = (ev_io *)anfds [fd].head)) 2492 while ((w = (ev_io *)anfds [fd].head))
… …
1939 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2495 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1940 } 2496 }
1941} 2497}
1942 2498
1943/* check whether the given fd is actually valid, for error recovery */ 2499/* check whether the given fd is actually valid, for error recovery */
1944inline_size int ecb_cold 2500inline_size ecb_cold int
1945fd_valid (int fd) 2501fd_valid (int fd)
1946{ 2502{
1947#ifdef _WIN32 2503#ifdef _WIN32
1948 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2504 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1949#else 2505#else
1950 return fcntl (fd, F_GETFD) != -1; 2506 return fcntl (fd, F_GETFD) != -1;
1951#endif 2507#endif
1952} 2508}
1953 2509
1954/* called on EBADF to verify fds */ 2510/* called on EBADF to verify fds */
1955static void noinline ecb_cold 2511ecb_noinline ecb_cold
2512static void
1956fd_ebadf (EV_P) 2513fd_ebadf (EV_P)
1957{ 2514{
1958 int fd; 2515 int fd;
1959 2516
1960 for (fd = 0; fd < anfdmax; ++fd) 2517 for (fd = 0; fd < anfdmax; ++fd)
… …
1962 if (!fd_valid (fd) && errno == EBADF) 2519 if (!fd_valid (fd) && errno == EBADF)
1963 fd_kill (EV_A_ fd); 2520 fd_kill (EV_A_ fd);
1964} 2521}
1965 2522
1966/* called on ENOMEM in select/poll to kill some fds and retry */ 2523/* called on ENOMEM in select/poll to kill some fds and retry */
1967static void noinline ecb_cold 2524ecb_noinline ecb_cold
2525static void
1968fd_enomem (EV_P) 2526fd_enomem (EV_P)
1969{ 2527{
1970 int fd; 2528 int fd;
1971 2529
1972 for (fd = anfdmax; fd--; ) 2530 for (fd = anfdmax; fd--; )
… …
1976 break; 2534 break;
1977 } 2535 }
1978} 2536}
1979 2537
1980/* usually called after fork if backend needs to re-arm all fds from scratch */ 2538/* usually called after fork if backend needs to re-arm all fds from scratch */
1981static void noinline 2539ecb_noinline
2540static void
1982fd_rearm_all (EV_P) 2541fd_rearm_all (EV_P)
1983{ 2542{
1984 int fd; 2543 int fd;
1985 2544
1986 for (fd = 0; fd < anfdmax; ++fd) 2545 for (fd = 0; fd < anfdmax; ++fd)
… …
2039 ev_tstamp minat; 2598 ev_tstamp minat;
2040 ANHE *minpos; 2599 ANHE *minpos;
2041 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2600 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2042 2601
2043 /* find minimum child */ 2602 /* find minimum child */
2044 if (expect_true (pos + DHEAP - 1 < E)) 2603 if (ecb_expect_true (pos + DHEAP - 1 < E))
2045 { 2604 {
2046 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2605 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2047 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2606 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2048 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2607 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2049 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2608 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2050 } 2609 }
2051 else if (pos < E) 2610 else if (pos < E)
2052 { 2611 {
2053 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2612 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2054 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2613 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2055 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2614 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2056 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2615 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2057 } 2616 }
2058 else 2617 else
2059 break; 2618 break;
2060 2619
2061 if (ANHE_at (he) <= minat) 2620 if (ANHE_at (he) <= minat)
… …
2069 2628
2070 heap [k] = he; 2629 heap [k] = he;
2071 ev_active (ANHE_w (he)) = k; 2630 ev_active (ANHE_w (he)) = k;
2072} 2631}
2073 2632
2074#else /* 4HEAP */ 2633#else /* not 4HEAP */
2075 2634
2076#define HEAP0 1 2635#define HEAP0 1
2077#define HPARENT(k) ((k) >> 1) 2636#define HPARENT(k) ((k) >> 1)
2078#define UPHEAP_DONE(p,k) (!(p)) 2637#define UPHEAP_DONE(p,k) (!(p))
2079 2638
… …
2151 upheap (heap, i + HEAP0); 2710 upheap (heap, i + HEAP0);
2152} 2711}
2153 2712
2154/*****************************************************************************/ 2713/*****************************************************************************/
2155 2714
2156/* associate signal watchers to a signal signal */ 2715/* associate signal watchers to a signal */
2157typedef struct 2716typedef struct
2158{ 2717{
2159 EV_ATOMIC_T pending; 2718 EV_ATOMIC_T pending;
2160#if EV_MULTIPLICITY 2719#if EV_MULTIPLICITY
2161 EV_P; 2720 EV_P;
… …
2167 2726
2168/*****************************************************************************/ 2727/*****************************************************************************/
2169 2728
2170#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2729#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2171 2730
2172static void noinline ecb_cold 2731ecb_noinline ecb_cold
2732static void
2173evpipe_init (EV_P) 2733evpipe_init (EV_P)
2174{ 2734{
2175 if (!ev_is_active (&pipe_w)) 2735 if (!ev_is_active (&pipe_w))
2176 { 2736 {
2177 int fds [2]; 2737 int fds [2];
… …
2217inline_speed void 2777inline_speed void
2218evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2778evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2219{ 2779{
2220 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2780 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2221 2781
2222 if (expect_true (*flag)) 2782 if (ecb_expect_true (*flag))
2223 return; 2783 return;
2224 2784
2225 *flag = 1; 2785 *flag = 1;
2226 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2786 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2227 2787
… …
2248#endif 2808#endif
2249 { 2809 {
2250#ifdef _WIN32 2810#ifdef _WIN32
2251 WSABUF buf; 2811 WSABUF buf;
2252 DWORD sent; 2812 DWORD sent;
2253 buf.buf = &buf; 2813 buf.buf = (char *)&buf;
2254 buf.len = 1; 2814 buf.len = 1;
2255 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2815 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2256#else 2816#else
2257 write (evpipe [1], &(evpipe [1]), 1); 2817 write (evpipe [1], &(evpipe [1]), 1);
2258#endif 2818#endif
… …
2304 sig_pending = 0; 2864 sig_pending = 0;
2305 2865
2306 ECB_MEMORY_FENCE; 2866 ECB_MEMORY_FENCE;
2307 2867
2308 for (i = EV_NSIG - 1; i--; ) 2868 for (i = EV_NSIG - 1; i--; )
2309 if (expect_false (signals [i].pending)) 2869 if (ecb_expect_false (signals [i].pending))
2310 ev_feed_signal_event (EV_A_ i + 1); 2870 ev_feed_signal_event (EV_A_ i + 1);
2311 } 2871 }
2312#endif 2872#endif
2313 2873
2314#if EV_ASYNC_ENABLE 2874#if EV_ASYNC_ENABLE
… …
2330} 2890}
2331 2891
2332/*****************************************************************************/ 2892/*****************************************************************************/
2333 2893
2334void 2894void
2335ev_feed_signal (int signum) EV_THROW 2895ev_feed_signal (int signum) EV_NOEXCEPT
2336{ 2896{
2337#if EV_MULTIPLICITY 2897#if EV_MULTIPLICITY
2338 EV_P; 2898 EV_P;
2339 ECB_MEMORY_FENCE_ACQUIRE; 2899 ECB_MEMORY_FENCE_ACQUIRE;
2340 EV_A = signals [signum - 1].loop; 2900 EV_A = signals [signum - 1].loop;
… …
2355#endif 2915#endif
2356 2916
2357 ev_feed_signal (signum); 2917 ev_feed_signal (signum);
2358} 2918}
2359 2919
2360void noinline 2920ecb_noinline
2921void
2361ev_feed_signal_event (EV_P_ int signum) EV_THROW 2922ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2362{ 2923{
2363 WL w; 2924 WL w;
2364 2925
2365 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2926 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2366 return; 2927 return;
2367 2928
2368 --signum; 2929 --signum;
2369 2930
2370#if EV_MULTIPLICITY 2931#if EV_MULTIPLICITY
2371 /* it is permissible to try to feed a signal to the wrong loop */ 2932 /* it is permissible to try to feed a signal to the wrong loop */
2372 /* or, likely more useful, feeding a signal nobody is waiting for */ 2933 /* or, likely more useful, feeding a signal nobody is waiting for */
2373 2934
2374 if (expect_false (signals [signum].loop != EV_A)) 2935 if (ecb_expect_false (signals [signum].loop != EV_A))
2375 return; 2936 return;
2376#endif 2937#endif
2377 2938
2378 signals [signum].pending = 0; 2939 signals [signum].pending = 0;
2379 ECB_MEMORY_FENCE_RELEASE; 2940 ECB_MEMORY_FENCE_RELEASE;
… …
2463 3024
2464#endif 3025#endif
2465 3026
2466/*****************************************************************************/ 3027/*****************************************************************************/
2467 3028
3029#if EV_USE_TIMERFD
3030
3031static void periodics_reschedule (EV_P);
3032
3033static void
3034timerfdcb (EV_P_ ev_io *iow, int revents)
3035{
3036 struct itimerspec its = { 0 };
3037
3038 its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2;
3039 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
3040
3041 ev_rt_now = ev_time ();
3042 /* periodics_reschedule only needs ev_rt_now */
3043 /* but maybe in the future we want the full treatment. */
3044 /*
3045 now_floor = EV_TS_CONST (0.);
3046 time_update (EV_A_ EV_TSTAMP_HUGE);
3047 */
3048#if EV_PERIODIC_ENABLE
3049 periodics_reschedule (EV_A);
3050#endif
3051}
3052
3053ecb_noinline ecb_cold
3054static void
3055evtimerfd_init (EV_P)
3056{
3057 if (!ev_is_active (&timerfd_w))
3058 {
3059 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
3060
3061 if (timerfd >= 0)
3062 {
3063 fd_intern (timerfd); /* just to be sure */
3064
3065 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
3066 ev_set_priority (&timerfd_w, EV_MINPRI);
3067 ev_io_start (EV_A_ &timerfd_w);
3068 ev_unref (EV_A); /* watcher should not keep loop alive */
3069
3070 /* (re-) arm timer */
3071 timerfdcb (EV_A_ 0, 0);
3072 }
3073 }
3074}
3075
3076#endif
3077
3078/*****************************************************************************/
3079
2468#if EV_USE_IOCP 3080#if EV_USE_IOCP
2469# include "ev_iocp.c" 3081# include "ev_iocp.c"
2470#endif 3082#endif
2471#if EV_USE_PORT 3083#if EV_USE_PORT
2472# include "ev_port.c" 3084# include "ev_port.c"
… …
2475# include "ev_kqueue.c" 3087# include "ev_kqueue.c"
2476#endif 3088#endif
2477#if EV_USE_EPOLL 3089#if EV_USE_EPOLL
2478# include "ev_epoll.c" 3090# include "ev_epoll.c"
2479#endif 3091#endif
3092#if EV_USE_LINUXAIO
3093# include "ev_linuxaio.c"
3094#endif
3095#if EV_USE_IOURING
3096# include "ev_iouring.c"
3097#endif
2480#if EV_USE_POLL 3098#if EV_USE_POLL
2481# include "ev_poll.c" 3099# include "ev_poll.c"
2482#endif 3100#endif
2483#if EV_USE_SELECT 3101#if EV_USE_SELECT
2484# include "ev_select.c" 3102# include "ev_select.c"
2485#endif 3103#endif
2486 3104
2487int ecb_cold 3105ecb_cold int
2488ev_version_major (void) EV_THROW 3106ev_version_major (void) EV_NOEXCEPT
2489{ 3107{
2490 return EV_VERSION_MAJOR; 3108 return EV_VERSION_MAJOR;
2491} 3109}
2492 3110
2493int ecb_cold 3111ecb_cold int
2494ev_version_minor (void) EV_THROW 3112ev_version_minor (void) EV_NOEXCEPT
2495{ 3113{
2496 return EV_VERSION_MINOR; 3114 return EV_VERSION_MINOR;
2497} 3115}
2498 3116
2499/* return true if we are running with elevated privileges and should ignore env variables */ 3117/* return true if we are running with elevated privileges and should ignore env variables */
2500int inline_size ecb_cold 3118inline_size ecb_cold int
2501enable_secure (void) 3119enable_secure (void)
2502{ 3120{
2503#ifdef _WIN32 3121#ifdef _WIN32
2504 return 0; 3122 return 0;
2505#else 3123#else
2506 return getuid () != geteuid () 3124 return getuid () != geteuid ()
2507 || getgid () != getegid (); 3125 || getgid () != getegid ();
2508#endif 3126#endif
2509} 3127}
2510 3128
2511unsigned int ecb_cold 3129ecb_cold
3130unsigned int
2512ev_supported_backends (void) EV_THROW 3131ev_supported_backends (void) EV_NOEXCEPT
2513{ 3132{
2514 unsigned int flags = 0; 3133 unsigned int flags = 0;
2515 3134
2516 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3135 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2517 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3136 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2518 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3137 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2519 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3138 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2520 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3139 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2521 3140 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3141 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3142
2522 return flags; 3143 return flags;
2523} 3144}
2524 3145
2525unsigned int ecb_cold 3146ecb_cold
3147unsigned int
2526ev_recommended_backends (void) EV_THROW 3148ev_recommended_backends (void) EV_NOEXCEPT
2527{ 3149{
2528 unsigned int flags = ev_supported_backends (); 3150 unsigned int flags = ev_supported_backends ();
2529 3151
2530#ifndef __NetBSD__ 3152#ifndef __NetBSD__
2531 /* kqueue is borked on everything but netbsd apparently */ 3153 /* kqueue is borked on everything but netbsd apparently */
… …
2539#endif 3161#endif
2540#ifdef __FreeBSD__ 3162#ifdef __FreeBSD__
2541 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 3163 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2542#endif 3164#endif
2543 3165
3166 /* TODO: linuxaio is very experimental */
3167#if !EV_RECOMMEND_LINUXAIO
3168 flags &= ~EVBACKEND_LINUXAIO;
3169#endif
3170 /* TODO: linuxaio is super experimental */
3171#if !EV_RECOMMEND_IOURING
3172 flags &= ~EVBACKEND_IOURING;
3173#endif
3174
2544 return flags; 3175 return flags;
2545} 3176}
2546 3177
2547unsigned int ecb_cold 3178ecb_cold
3179unsigned int
2548ev_embeddable_backends (void) EV_THROW 3180ev_embeddable_backends (void) EV_NOEXCEPT
2549{ 3181{
2550 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3182 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2551 3183
2552 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3184 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2553 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 3185 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2554 flags &= ~EVBACKEND_EPOLL; 3186 flags &= ~EVBACKEND_EPOLL;
2555 3187
3188 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3189
2556 return flags; 3190 return flags;
2557} 3191}
2558 3192
2559unsigned int 3193unsigned int
2560ev_backend (EV_P) EV_THROW 3194ev_backend (EV_P) EV_NOEXCEPT
2561{ 3195{
2562 return backend; 3196 return backend;
2563} 3197}
2564 3198
2565#if EV_FEATURE_API 3199#if EV_FEATURE_API
2566unsigned int 3200unsigned int
2567ev_iteration (EV_P) EV_THROW 3201ev_iteration (EV_P) EV_NOEXCEPT
2568{ 3202{
2569 return loop_count; 3203 return loop_count;
2570} 3204}
2571 3205
2572unsigned int 3206unsigned int
2573ev_depth (EV_P) EV_THROW 3207ev_depth (EV_P) EV_NOEXCEPT
2574{ 3208{
2575 return loop_depth; 3209 return loop_depth;
2576} 3210}
2577 3211
2578void 3212void
2579ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3213ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2580{ 3214{
2581 io_blocktime = interval; 3215 io_blocktime = interval;
2582} 3216}
2583 3217
2584void 3218void
2585ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3219ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2586{ 3220{
2587 timeout_blocktime = interval; 3221 timeout_blocktime = interval;
2588} 3222}
2589 3223
2590void 3224void
2591ev_set_userdata (EV_P_ void *data) EV_THROW 3225ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2592{ 3226{
2593 userdata = data; 3227 userdata = data;
2594} 3228}
2595 3229
2596void * 3230void *
2597ev_userdata (EV_P) EV_THROW 3231ev_userdata (EV_P) EV_NOEXCEPT
2598{ 3232{
2599 return userdata; 3233 return userdata;
2600} 3234}
2601 3235
2602void 3236void
2603ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3237ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2604{ 3238{
2605 invoke_cb = invoke_pending_cb; 3239 invoke_cb = invoke_pending_cb;
2606} 3240}
2607 3241
2608void 3242void
2609ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 3243ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2610{ 3244{
2611 release_cb = release; 3245 release_cb = release;
2612 acquire_cb = acquire; 3246 acquire_cb = acquire;
2613} 3247}
2614#endif 3248#endif
2615 3249
2616/* initialise a loop structure, must be zero-initialised */ 3250/* initialise a loop structure, must be zero-initialised */
2617static void noinline ecb_cold 3251ecb_noinline ecb_cold
3252static void
2618loop_init (EV_P_ unsigned int flags) EV_THROW 3253loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2619{ 3254{
2620 if (!backend) 3255 if (!backend)
2621 { 3256 {
2622 origflags = flags; 3257 origflags = flags;
2623 3258
… …
2676 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3311 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2677#endif 3312#endif
2678#if EV_USE_SIGNALFD 3313#if EV_USE_SIGNALFD
2679 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3314 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2680#endif 3315#endif
3316#if EV_USE_TIMERFD
3317 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3318#endif
2681 3319
2682 if (!(flags & EVBACKEND_MASK)) 3320 if (!(flags & EVBACKEND_MASK))
2683 flags |= ev_recommended_backends (); 3321 flags |= ev_recommended_backends ();
2684 3322
2685#if EV_USE_IOCP 3323#if EV_USE_IOCP
2686 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3324 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2687#endif 3325#endif
2688#if EV_USE_PORT 3326#if EV_USE_PORT
2689 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3327 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2690#endif 3328#endif
2691#if EV_USE_KQUEUE 3329#if EV_USE_KQUEUE
2692 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3330 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3331#endif
3332#if EV_USE_IOURING
3333 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3334#endif
3335#if EV_USE_LINUXAIO
3336 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2693#endif 3337#endif
2694#if EV_USE_EPOLL 3338#if EV_USE_EPOLL
2695 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3339 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2696#endif 3340#endif
2697#if EV_USE_POLL 3341#if EV_USE_POLL
2698 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3342 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2699#endif 3343#endif
2700#if EV_USE_SELECT 3344#if EV_USE_SELECT
2701 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3345 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2702#endif 3346#endif
2703 3347
2704 ev_prepare_init (&pending_w, pendingcb); 3348 ev_prepare_init (&pending_w, pendingcb);
2705 3349
2706#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3350#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2709#endif 3353#endif
2710 } 3354 }
2711} 3355}
2712 3356
2713/* free up a loop structure */ 3357/* free up a loop structure */
2714void ecb_cold 3358ecb_cold
3359void
2715ev_loop_destroy (EV_P) 3360ev_loop_destroy (EV_P)
2716{ 3361{
2717 int i; 3362 int i;
2718 3363
2719#if EV_MULTIPLICITY 3364#if EV_MULTIPLICITY
… …
2722 return; 3367 return;
2723#endif 3368#endif
2724 3369
2725#if EV_CLEANUP_ENABLE 3370#if EV_CLEANUP_ENABLE
2726 /* queue cleanup watchers (and execute them) */ 3371 /* queue cleanup watchers (and execute them) */
2727 if (expect_false (cleanupcnt)) 3372 if (ecb_expect_false (cleanupcnt))
2728 { 3373 {
2729 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3374 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2730 EV_INVOKE_PENDING; 3375 EV_INVOKE_PENDING;
2731 } 3376 }
2732#endif 3377#endif
… …
2751#if EV_USE_SIGNALFD 3396#if EV_USE_SIGNALFD
2752 if (ev_is_active (&sigfd_w)) 3397 if (ev_is_active (&sigfd_w))
2753 close (sigfd); 3398 close (sigfd);
2754#endif 3399#endif
2755 3400
3401#if EV_USE_TIMERFD
3402 if (ev_is_active (&timerfd_w))
3403 close (timerfd);
3404#endif
3405
2756#if EV_USE_INOTIFY 3406#if EV_USE_INOTIFY
2757 if (fs_fd >= 0) 3407 if (fs_fd >= 0)
2758 close (fs_fd); 3408 close (fs_fd);
2759#endif 3409#endif
2760 3410
2761 if (backend_fd >= 0) 3411 if (backend_fd >= 0)
2762 close (backend_fd); 3412 close (backend_fd);
2763 3413
2764#if EV_USE_IOCP 3414#if EV_USE_IOCP
2765 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3415 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2766#endif 3416#endif
2767#if EV_USE_PORT 3417#if EV_USE_PORT
2768 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3418 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2769#endif 3419#endif
2770#if EV_USE_KQUEUE 3420#if EV_USE_KQUEUE
2771 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3421 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3422#endif
3423#if EV_USE_IOURING
3424 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3425#endif
3426#if EV_USE_LINUXAIO
3427 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2772#endif 3428#endif
2773#if EV_USE_EPOLL 3429#if EV_USE_EPOLL
2774 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3430 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2775#endif 3431#endif
2776#if EV_USE_POLL 3432#if EV_USE_POLL
2777 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3433 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2778#endif 3434#endif
2779#if EV_USE_SELECT 3435#if EV_USE_SELECT
2780 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3436 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2781#endif 3437#endif
2782 3438
2783 for (i = NUMPRI; i--; ) 3439 for (i = NUMPRI; i--; )
2784 { 3440 {
2785 array_free (pending, [i]); 3441 array_free (pending, [i]);
… …
2827 3483
2828inline_size void 3484inline_size void
2829loop_fork (EV_P) 3485loop_fork (EV_P)
2830{ 3486{
2831#if EV_USE_PORT 3487#if EV_USE_PORT
2832 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3488 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2833#endif 3489#endif
2834#if EV_USE_KQUEUE 3490#if EV_USE_KQUEUE
2835 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3491 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3492#endif
3493#if EV_USE_IOURING
3494 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3495#endif
3496#if EV_USE_LINUXAIO
3497 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2836#endif 3498#endif
2837#if EV_USE_EPOLL 3499#if EV_USE_EPOLL
2838 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3500 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2839#endif 3501#endif
2840#if EV_USE_INOTIFY 3502#if EV_USE_INOTIFY
2841 infy_fork (EV_A); 3503 infy_fork (EV_A);
2842#endif 3504#endif
2843 3505
3506 if (postfork != 2)
3507 {
3508 #if EV_USE_SIGNALFD
3509 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3510 #endif
3511
3512 #if EV_USE_TIMERFD
3513 if (ev_is_active (&timerfd_w))
3514 {
3515 ev_ref (EV_A);
3516 ev_io_stop (EV_A_ &timerfd_w);
3517
3518 close (timerfd);
3519 timerfd = -2;
3520
3521 evtimerfd_init (EV_A);
3522 /* reschedule periodics, in case we missed something */
3523 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3524 }
3525 #endif
3526
2844#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3527 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2845 if (ev_is_active (&pipe_w)) 3528 if (ev_is_active (&pipe_w))
2846 { 3529 {
2847 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3530 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2848 3531
2849 ev_ref (EV_A); 3532 ev_ref (EV_A);
2850 ev_io_stop (EV_A_ &pipe_w); 3533 ev_io_stop (EV_A_ &pipe_w);
2851 3534
2852 if (evpipe [0] >= 0) 3535 if (evpipe [0] >= 0)
2853 EV_WIN32_CLOSE_FD (evpipe [0]); 3536 EV_WIN32_CLOSE_FD (evpipe [0]);
2854 3537
2855 evpipe_init (EV_A); 3538 evpipe_init (EV_A);
2856 /* iterate over everything, in case we missed something before */ 3539 /* iterate over everything, in case we missed something before */
2857 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3540 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3541 }
3542 #endif
2858 } 3543 }
2859#endif
2860 3544
2861 postfork = 0; 3545 postfork = 0;
2862} 3546}
2863 3547
2864#if EV_MULTIPLICITY 3548#if EV_MULTIPLICITY
2865 3549
3550ecb_cold
2866struct ev_loop * ecb_cold 3551struct ev_loop *
2867ev_loop_new (unsigned int flags) EV_THROW 3552ev_loop_new (unsigned int flags) EV_NOEXCEPT
2868{ 3553{
2869 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3554 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2870 3555
2871 memset (EV_A, 0, sizeof (struct ev_loop)); 3556 memset (EV_A, 0, sizeof (struct ev_loop));
2872 loop_init (EV_A_ flags); 3557 loop_init (EV_A_ flags);
… …
2879} 3564}
2880 3565
2881#endif /* multiplicity */ 3566#endif /* multiplicity */
2882 3567
2883#if EV_VERIFY 3568#if EV_VERIFY
2884static void noinline ecb_cold 3569ecb_noinline ecb_cold
3570static void
2885verify_watcher (EV_P_ W w) 3571verify_watcher (EV_P_ W w)
2886{ 3572{
2887 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3573 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2888 3574
2889 if (w->pending) 3575 if (w->pending)
2890 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3576 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2891} 3577}
2892 3578
2893static void noinline ecb_cold 3579ecb_noinline ecb_cold
3580static void
2894verify_heap (EV_P_ ANHE *heap, int N) 3581verify_heap (EV_P_ ANHE *heap, int N)
2895{ 3582{
2896 int i; 3583 int i;
2897 3584
2898 for (i = HEAP0; i < N + HEAP0; ++i) 3585 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2903 3590
2904 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3591 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2905 } 3592 }
2906} 3593}
2907 3594
2908static void noinline ecb_cold 3595ecb_noinline ecb_cold
3596static void
2909array_verify (EV_P_ W *ws, int cnt) 3597array_verify (EV_P_ W *ws, int cnt)
2910{ 3598{
2911 while (cnt--) 3599 while (cnt--)
2912 { 3600 {
2913 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3601 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2916} 3604}
2917#endif 3605#endif
2918 3606
2919#if EV_FEATURE_API 3607#if EV_FEATURE_API
2920void ecb_cold 3608void ecb_cold
2921ev_verify (EV_P) EV_THROW 3609ev_verify (EV_P) EV_NOEXCEPT
2922{ 3610{
2923#if EV_VERIFY 3611#if EV_VERIFY
2924 int i; 3612 int i;
2925 WL w, w2; 3613 WL w, w2;
2926 3614
… …
3002#endif 3690#endif
3003} 3691}
3004#endif 3692#endif
3005 3693
3006#if EV_MULTIPLICITY 3694#if EV_MULTIPLICITY
3695ecb_cold
3007struct ev_loop * ecb_cold 3696struct ev_loop *
3008#else 3697#else
3009int 3698int
3010#endif 3699#endif
3011ev_default_loop (unsigned int flags) EV_THROW 3700ev_default_loop (unsigned int flags) EV_NOEXCEPT
3012{ 3701{
3013 if (!ev_default_loop_ptr) 3702 if (!ev_default_loop_ptr)
3014 { 3703 {
3015#if EV_MULTIPLICITY 3704#if EV_MULTIPLICITY
3016 EV_P = ev_default_loop_ptr = &default_loop_struct; 3705 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3035 3724
3036 return ev_default_loop_ptr; 3725 return ev_default_loop_ptr;
3037} 3726}
3038 3727
3039void 3728void
3040ev_loop_fork (EV_P) EV_THROW 3729ev_loop_fork (EV_P) EV_NOEXCEPT
3041{ 3730{
3042 postfork = 1; 3731 postfork = 1;
3043} 3732}
3044 3733
3045/*****************************************************************************/ 3734/*****************************************************************************/
… …
3049{ 3738{
3050 EV_CB_INVOKE ((W)w, revents); 3739 EV_CB_INVOKE ((W)w, revents);
3051} 3740}
3052 3741
3053unsigned int 3742unsigned int
3054ev_pending_count (EV_P) EV_THROW 3743ev_pending_count (EV_P) EV_NOEXCEPT
3055{ 3744{
3056 int pri; 3745 int pri;
3057 unsigned int count = 0; 3746 unsigned int count = 0;
3058 3747
3059 for (pri = NUMPRI; pri--; ) 3748 for (pri = NUMPRI; pri--; )
3060 count += pendingcnt [pri]; 3749 count += pendingcnt [pri];
3061 3750
3062 return count; 3751 return count;
3063} 3752}
3064 3753
3065void noinline 3754ecb_noinline
3755void
3066ev_invoke_pending (EV_P) 3756ev_invoke_pending (EV_P)
3067{ 3757{
3068 pendingpri = NUMPRI; 3758 pendingpri = NUMPRI;
3069 3759
3070 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3760 do
3071 { 3761 {
3072 --pendingpri; 3762 --pendingpri;
3073 3763
3764 /* pendingpri possibly gets modified in the inner loop */
3074 while (pendingcnt [pendingpri]) 3765 while (pendingcnt [pendingpri])
3075 { 3766 {
3076 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3767 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3077 3768
3078 p->w->pending = 0; 3769 p->w->pending = 0;
3079 EV_CB_INVOKE (p->w, p->events); 3770 EV_CB_INVOKE (p->w, p->events);
3080 EV_FREQUENT_CHECK; 3771 EV_FREQUENT_CHECK;
3081 } 3772 }
3082 } 3773 }
3774 while (pendingpri);
3083} 3775}
3084 3776
3085#if EV_IDLE_ENABLE 3777#if EV_IDLE_ENABLE
3086/* make idle watchers pending. this handles the "call-idle */ 3778/* make idle watchers pending. this handles the "call-idle */
3087/* only when higher priorities are idle" logic */ 3779/* only when higher priorities are idle" logic */
3088inline_size void 3780inline_size void
3089idle_reify (EV_P) 3781idle_reify (EV_P)
3090{ 3782{
3091 if (expect_false (idleall)) 3783 if (ecb_expect_false (idleall))
3092 { 3784 {
3093 int pri; 3785 int pri;
3094 3786
3095 for (pri = NUMPRI; pri--; ) 3787 for (pri = NUMPRI; pri--; )
3096 { 3788 {
… …
3126 { 3818 {
3127 ev_at (w) += w->repeat; 3819 ev_at (w) += w->repeat;
3128 if (ev_at (w) < mn_now) 3820 if (ev_at (w) < mn_now)
3129 ev_at (w) = mn_now; 3821 ev_at (w) = mn_now;
3130 3822
3131 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3823 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3132 3824
3133 ANHE_at_cache (timers [HEAP0]); 3825 ANHE_at_cache (timers [HEAP0]);
3134 downheap (timers, timercnt, HEAP0); 3826 downheap (timers, timercnt, HEAP0);
3135 } 3827 }
3136 else 3828 else
… …
3145 } 3837 }
3146} 3838}
3147 3839
3148#if EV_PERIODIC_ENABLE 3840#if EV_PERIODIC_ENABLE
3149 3841
3150static void noinline 3842ecb_noinline
3843static void
3151periodic_recalc (EV_P_ ev_periodic *w) 3844periodic_recalc (EV_P_ ev_periodic *w)
3152{ 3845{
3153 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3846 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3154 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3847 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3155 3848
… …
3157 while (at <= ev_rt_now) 3850 while (at <= ev_rt_now)
3158 { 3851 {
3159 ev_tstamp nat = at + w->interval; 3852 ev_tstamp nat = at + w->interval;
3160 3853
3161 /* when resolution fails us, we use ev_rt_now */ 3854 /* when resolution fails us, we use ev_rt_now */
3162 if (expect_false (nat == at)) 3855 if (ecb_expect_false (nat == at))
3163 { 3856 {
3164 at = ev_rt_now; 3857 at = ev_rt_now;
3165 break; 3858 break;
3166 } 3859 }
3167 3860
… …
3213 } 3906 }
3214} 3907}
3215 3908
3216/* simply recalculate all periodics */ 3909/* simply recalculate all periodics */
3217/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3910/* TODO: maybe ensure that at least one event happens when jumping forward? */
3218static void noinline ecb_cold 3911ecb_noinline ecb_cold
3912static void
3219periodics_reschedule (EV_P) 3913periodics_reschedule (EV_P)
3220{ 3914{
3221 int i; 3915 int i;
3222 3916
3223 /* adjust periodics after time jump */ 3917 /* adjust periodics after time jump */
… …
3236 reheap (periodics, periodiccnt); 3930 reheap (periodics, periodiccnt);
3237} 3931}
3238#endif 3932#endif
3239 3933
3240/* adjust all timers by a given offset */ 3934/* adjust all timers by a given offset */
3241static void noinline ecb_cold 3935ecb_noinline ecb_cold
3936static void
3242timers_reschedule (EV_P_ ev_tstamp adjust) 3937timers_reschedule (EV_P_ ev_tstamp adjust)
3243{ 3938{
3244 int i; 3939 int i;
3245 3940
3246 for (i = 0; i < timercnt; ++i) 3941 for (i = 0; i < timercnt; ++i)
… …
3255/* also detect if there was a timejump, and act accordingly */ 3950/* also detect if there was a timejump, and act accordingly */
3256inline_speed void 3951inline_speed void
3257time_update (EV_P_ ev_tstamp max_block) 3952time_update (EV_P_ ev_tstamp max_block)
3258{ 3953{
3259#if EV_USE_MONOTONIC 3954#if EV_USE_MONOTONIC
3260 if (expect_true (have_monotonic)) 3955 if (ecb_expect_true (have_monotonic))
3261 { 3956 {
3262 int i; 3957 int i;
3263 ev_tstamp odiff = rtmn_diff; 3958 ev_tstamp odiff = rtmn_diff;
3264 3959
3265 mn_now = get_clock (); 3960 mn_now = get_clock ();
3266 3961
3267 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3962 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3268 /* interpolate in the meantime */ 3963 /* interpolate in the meantime */
3269 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3964 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3270 { 3965 {
3271 ev_rt_now = rtmn_diff + mn_now; 3966 ev_rt_now = rtmn_diff + mn_now;
3272 return; 3967 return;
3273 } 3968 }
3274 3969
… …
3288 ev_tstamp diff; 3983 ev_tstamp diff;
3289 rtmn_diff = ev_rt_now - mn_now; 3984 rtmn_diff = ev_rt_now - mn_now;
3290 3985
3291 diff = odiff - rtmn_diff; 3986 diff = odiff - rtmn_diff;
3292 3987
3293 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3988 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3294 return; /* all is well */ 3989 return; /* all is well */
3295 3990
3296 ev_rt_now = ev_time (); 3991 ev_rt_now = ev_time ();
3297 mn_now = get_clock (); 3992 mn_now = get_clock ();
3298 now_floor = mn_now; 3993 now_floor = mn_now;
… …
3307 else 4002 else
3308#endif 4003#endif
3309 { 4004 {
3310 ev_rt_now = ev_time (); 4005 ev_rt_now = ev_time ();
3311 4006
3312 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 4007 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3313 { 4008 {
3314 /* adjust timers. this is easy, as the offset is the same for all of them */ 4009 /* adjust timers. this is easy, as the offset is the same for all of them */
3315 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4010 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3316#if EV_PERIODIC_ENABLE 4011#if EV_PERIODIC_ENABLE
3317 periodics_reschedule (EV_A); 4012 periodics_reschedule (EV_A);
… …
3340#if EV_VERIFY >= 2 4035#if EV_VERIFY >= 2
3341 ev_verify (EV_A); 4036 ev_verify (EV_A);
3342#endif 4037#endif
3343 4038
3344#ifndef _WIN32 4039#ifndef _WIN32
3345 if (expect_false (curpid)) /* penalise the forking check even more */ 4040 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3346 if (expect_false (getpid () != curpid)) 4041 if (ecb_expect_false (getpid () != curpid))
3347 { 4042 {
3348 curpid = getpid (); 4043 curpid = getpid ();
3349 postfork = 1; 4044 postfork = 1;
3350 } 4045 }
3351#endif 4046#endif
3352 4047
3353#if EV_FORK_ENABLE 4048#if EV_FORK_ENABLE
3354 /* we might have forked, so queue fork handlers */ 4049 /* we might have forked, so queue fork handlers */
3355 if (expect_false (postfork)) 4050 if (ecb_expect_false (postfork))
3356 if (forkcnt) 4051 if (forkcnt)
3357 { 4052 {
3358 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4053 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3359 EV_INVOKE_PENDING; 4054 EV_INVOKE_PENDING;
3360 } 4055 }
3361#endif 4056#endif
3362 4057
3363#if EV_PREPARE_ENABLE 4058#if EV_PREPARE_ENABLE
3364 /* queue prepare watchers (and execute them) */ 4059 /* queue prepare watchers (and execute them) */
3365 if (expect_false (preparecnt)) 4060 if (ecb_expect_false (preparecnt))
3366 { 4061 {
3367 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3368 EV_INVOKE_PENDING; 4063 EV_INVOKE_PENDING;
3369 } 4064 }
3370#endif 4065#endif
3371 4066
3372 if (expect_false (loop_done)) 4067 if (ecb_expect_false (loop_done))
3373 break; 4068 break;
3374 4069
3375 /* we might have forked, so reify kernel state if necessary */ 4070 /* we might have forked, so reify kernel state if necessary */
3376 if (expect_false (postfork)) 4071 if (ecb_expect_false (postfork))
3377 loop_fork (EV_A); 4072 loop_fork (EV_A);
3378 4073
3379 /* update fd-related kernel structures */ 4074 /* update fd-related kernel structures */
3380 fd_reify (EV_A); 4075 fd_reify (EV_A);
3381 4076
… …
3386 4081
3387 /* remember old timestamp for io_blocktime calculation */ 4082 /* remember old timestamp for io_blocktime calculation */
3388 ev_tstamp prev_mn_now = mn_now; 4083 ev_tstamp prev_mn_now = mn_now;
3389 4084
3390 /* update time to cancel out callback processing overhead */ 4085 /* update time to cancel out callback processing overhead */
3391 time_update (EV_A_ 1e100); 4086 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3392 4087
3393 /* from now on, we want a pipe-wake-up */ 4088 /* from now on, we want a pipe-wake-up */
3394 pipe_write_wanted = 1; 4089 pipe_write_wanted = 1;
3395 4090
3396 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 4091 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3397 4092
3398 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4093 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3399 { 4094 {
3400 waittime = MAX_BLOCKTIME; 4095 waittime = EV_TS_CONST (MAX_BLOCKTIME);
4096
4097#if EV_USE_TIMERFD
4098 /* sleep a lot longer when we can reliably detect timejumps */
4099 if (ecb_expect_true (timerfd >= 0))
4100 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4101#endif
4102#if !EV_PERIODIC_ENABLE
4103 /* without periodics but with monotonic clock there is no need */
4104 /* for any time jump detection, so sleep longer */
4105 if (ecb_expect_true (have_monotonic))
4106 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4107#endif
3401 4108
3402 if (timercnt) 4109 if (timercnt)
3403 { 4110 {
3404 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4111 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3405 if (waittime > to) waittime = to; 4112 if (waittime > to) waittime = to;
… …
3412 if (waittime > to) waittime = to; 4119 if (waittime > to) waittime = to;
3413 } 4120 }
3414#endif 4121#endif
3415 4122
3416 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4123 /* don't let timeouts decrease the waittime below timeout_blocktime */
3417 if (expect_false (waittime < timeout_blocktime)) 4124 if (ecb_expect_false (waittime < timeout_blocktime))
3418 waittime = timeout_blocktime; 4125 waittime = timeout_blocktime;
3419 4126
3420 /* at this point, we NEED to wait, so we have to ensure */ 4127 /* now there are two more special cases left, either we have
3421 /* to pass a minimum nonzero value to the backend */ 4128 * already-expired timers, so we should not sleep, or we have timers
4129 * that expire very soon, in which case we need to wait for a minimum
4130 * amount of time for some event loop backends.
4131 */
3422 if (expect_false (waittime < backend_mintime)) 4132 if (ecb_expect_false (waittime < backend_mintime))
4133 waittime = waittime <= EV_TS_CONST (0.)
4134 ? EV_TS_CONST (0.)
3423 waittime = backend_mintime; 4135 : backend_mintime;
3424 4136
3425 /* extra check because io_blocktime is commonly 0 */ 4137 /* extra check because io_blocktime is commonly 0 */
3426 if (expect_false (io_blocktime)) 4138 if (ecb_expect_false (io_blocktime))
3427 { 4139 {
3428 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4140 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3429 4141
3430 if (sleeptime > waittime - backend_mintime) 4142 if (sleeptime > waittime - backend_mintime)
3431 sleeptime = waittime - backend_mintime; 4143 sleeptime = waittime - backend_mintime;
3432 4144
3433 if (expect_true (sleeptime > 0.)) 4145 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3434 { 4146 {
3435 ev_sleep (sleeptime); 4147 ev_sleep (sleeptime);
3436 waittime -= sleeptime; 4148 waittime -= sleeptime;
3437 } 4149 }
3438 } 4150 }
… …
3452 { 4164 {
3453 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4165 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3454 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4166 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3455 } 4167 }
3456 4168
3457
3458 /* update ev_rt_now, do magic */ 4169 /* update ev_rt_now, do magic */
3459 time_update (EV_A_ waittime + sleeptime); 4170 time_update (EV_A_ waittime + sleeptime);
3460 } 4171 }
3461 4172
3462 /* queue pending timers and reschedule them */ 4173 /* queue pending timers and reschedule them */
… …
3470 idle_reify (EV_A); 4181 idle_reify (EV_A);
3471#endif 4182#endif
3472 4183
3473#if EV_CHECK_ENABLE 4184#if EV_CHECK_ENABLE
3474 /* queue check watchers, to be executed first */ 4185 /* queue check watchers, to be executed first */
3475 if (expect_false (checkcnt)) 4186 if (ecb_expect_false (checkcnt))
3476 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4187 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3477#endif 4188#endif
3478 4189
3479 EV_INVOKE_PENDING; 4190 EV_INVOKE_PENDING;
3480 } 4191 }
3481 while (expect_true ( 4192 while (ecb_expect_true (
3482 activecnt 4193 activecnt
3483 && !loop_done 4194 && !loop_done
3484 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4195 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3485 )); 4196 ));
3486 4197
… …
3493 4204
3494 return activecnt; 4205 return activecnt;
3495} 4206}
3496 4207
3497void 4208void
3498ev_break (EV_P_ int how) EV_THROW 4209ev_break (EV_P_ int how) EV_NOEXCEPT
3499{ 4210{
3500 loop_done = how; 4211 loop_done = how;
3501} 4212}
3502 4213
3503void 4214void
3504ev_ref (EV_P) EV_THROW 4215ev_ref (EV_P) EV_NOEXCEPT
3505{ 4216{
3506 ++activecnt; 4217 ++activecnt;
3507} 4218}
3508 4219
3509void 4220void
3510ev_unref (EV_P) EV_THROW 4221ev_unref (EV_P) EV_NOEXCEPT
3511{ 4222{
3512 --activecnt; 4223 --activecnt;
3513} 4224}
3514 4225
3515void 4226void
3516ev_now_update (EV_P) EV_THROW 4227ev_now_update (EV_P) EV_NOEXCEPT
3517{ 4228{
3518 time_update (EV_A_ 1e100); 4229 time_update (EV_A_ EV_TSTAMP_HUGE);
3519} 4230}
3520 4231
3521void 4232void
3522ev_suspend (EV_P) EV_THROW 4233ev_suspend (EV_P) EV_NOEXCEPT
3523{ 4234{
3524 ev_now_update (EV_A); 4235 ev_now_update (EV_A);
3525} 4236}
3526 4237
3527void 4238void
3528ev_resume (EV_P) EV_THROW 4239ev_resume (EV_P) EV_NOEXCEPT
3529{ 4240{
3530 ev_tstamp mn_prev = mn_now; 4241 ev_tstamp mn_prev = mn_now;
3531 4242
3532 ev_now_update (EV_A); 4243 ev_now_update (EV_A);
3533 timers_reschedule (EV_A_ mn_now - mn_prev); 4244 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3550inline_size void 4261inline_size void
3551wlist_del (WL *head, WL elem) 4262wlist_del (WL *head, WL elem)
3552{ 4263{
3553 while (*head) 4264 while (*head)
3554 { 4265 {
3555 if (expect_true (*head == elem)) 4266 if (ecb_expect_true (*head == elem))
3556 { 4267 {
3557 *head = elem->next; 4268 *head = elem->next;
3558 break; 4269 break;
3559 } 4270 }
3560 4271
… …
3572 w->pending = 0; 4283 w->pending = 0;
3573 } 4284 }
3574} 4285}
3575 4286
3576int 4287int
3577ev_clear_pending (EV_P_ void *w) EV_THROW 4288ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3578{ 4289{
3579 W w_ = (W)w; 4290 W w_ = (W)w;
3580 int pending = w_->pending; 4291 int pending = w_->pending;
3581 4292
3582 if (expect_true (pending)) 4293 if (ecb_expect_true (pending))
3583 { 4294 {
3584 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4295 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3585 p->w = (W)&pending_w; 4296 p->w = (W)&pending_w;
3586 w_->pending = 0; 4297 w_->pending = 0;
3587 return p->events; 4298 return p->events;
… …
3614 w->active = 0; 4325 w->active = 0;
3615} 4326}
3616 4327
3617/*****************************************************************************/ 4328/*****************************************************************************/
3618 4329
3619void noinline 4330ecb_noinline
4331void
3620ev_io_start (EV_P_ ev_io *w) EV_THROW 4332ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3621{ 4333{
3622 int fd = w->fd; 4334 int fd = w->fd;
3623 4335
3624 if (expect_false (ev_is_active (w))) 4336 if (ecb_expect_false (ev_is_active (w)))
3625 return; 4337 return;
3626 4338
3627 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4339 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3628 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4340 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3629 4341
4342#if EV_VERIFY >= 2
4343 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4344#endif
3630 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
3631 4346
3632 ev_start (EV_A_ (W)w, 1); 4347 ev_start (EV_A_ (W)w, 1);
3633 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4348 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3634 wlist_add (&anfds[fd].head, (WL)w); 4349 wlist_add (&anfds[fd].head, (WL)w);
3635 4350
3636 /* common bug, apparently */ 4351 /* common bug, apparently */
3637 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4352 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3638 4353
… …
3640 w->events &= ~EV__IOFDSET; 4355 w->events &= ~EV__IOFDSET;
3641 4356
3642 EV_FREQUENT_CHECK; 4357 EV_FREQUENT_CHECK;
3643} 4358}
3644 4359
3645void noinline 4360ecb_noinline
4361void
3646ev_io_stop (EV_P_ ev_io *w) EV_THROW 4362ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3647{ 4363{
3648 clear_pending (EV_A_ (W)w); 4364 clear_pending (EV_A_ (W)w);
3649 if (expect_false (!ev_is_active (w))) 4365 if (ecb_expect_false (!ev_is_active (w)))
3650 return; 4366 return;
3651 4367
3652 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4368 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3653 4369
4370#if EV_VERIFY >= 2
4371 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4372#endif
3654 EV_FREQUENT_CHECK; 4373 EV_FREQUENT_CHECK;
3655 4374
3656 wlist_del (&anfds[w->fd].head, (WL)w); 4375 wlist_del (&anfds[w->fd].head, (WL)w);
3657 ev_stop (EV_A_ (W)w); 4376 ev_stop (EV_A_ (W)w);
3658 4377
3659 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4378 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3660 4379
3661 EV_FREQUENT_CHECK; 4380 EV_FREQUENT_CHECK;
3662} 4381}
3663 4382
3664void noinline 4383ecb_noinline
4384void
3665ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4385ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3666{ 4386{
3667 if (expect_false (ev_is_active (w))) 4387 if (ecb_expect_false (ev_is_active (w)))
3668 return; 4388 return;
3669 4389
3670 ev_at (w) += mn_now; 4390 ev_at (w) += mn_now;
3671 4391
3672 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4392 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3673 4393
3674 EV_FREQUENT_CHECK; 4394 EV_FREQUENT_CHECK;
3675 4395
3676 ++timercnt; 4396 ++timercnt;
3677 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4397 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3678 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4398 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3679 ANHE_w (timers [ev_active (w)]) = (WT)w; 4399 ANHE_w (timers [ev_active (w)]) = (WT)w;
3680 ANHE_at_cache (timers [ev_active (w)]); 4400 ANHE_at_cache (timers [ev_active (w)]);
3681 upheap (timers, ev_active (w)); 4401 upheap (timers, ev_active (w));
3682 4402
3683 EV_FREQUENT_CHECK; 4403 EV_FREQUENT_CHECK;
3684 4404
3685 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4405 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3686} 4406}
3687 4407
3688void noinline 4408ecb_noinline
4409void
3689ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4410ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3690{ 4411{
3691 clear_pending (EV_A_ (W)w); 4412 clear_pending (EV_A_ (W)w);
3692 if (expect_false (!ev_is_active (w))) 4413 if (ecb_expect_false (!ev_is_active (w)))
3693 return; 4414 return;
3694 4415
3695 EV_FREQUENT_CHECK; 4416 EV_FREQUENT_CHECK;
3696 4417
3697 { 4418 {
… …
3699 4420
3700 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4421 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3701 4422
3702 --timercnt; 4423 --timercnt;
3703 4424
3704 if (expect_true (active < timercnt + HEAP0)) 4425 if (ecb_expect_true (active < timercnt + HEAP0))
3705 { 4426 {
3706 timers [active] = timers [timercnt + HEAP0]; 4427 timers [active] = timers [timercnt + HEAP0];
3707 adjustheap (timers, timercnt, active); 4428 adjustheap (timers, timercnt, active);
3708 } 4429 }
3709 } 4430 }
… …
3713 ev_stop (EV_A_ (W)w); 4434 ev_stop (EV_A_ (W)w);
3714 4435
3715 EV_FREQUENT_CHECK; 4436 EV_FREQUENT_CHECK;
3716} 4437}
3717 4438
3718void noinline 4439ecb_noinline
4440void
3719ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4441ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3720{ 4442{
3721 EV_FREQUENT_CHECK; 4443 EV_FREQUENT_CHECK;
3722 4444
3723 clear_pending (EV_A_ (W)w); 4445 clear_pending (EV_A_ (W)w);
3724 4446
… …
3741 4463
3742 EV_FREQUENT_CHECK; 4464 EV_FREQUENT_CHECK;
3743} 4465}
3744 4466
3745ev_tstamp 4467ev_tstamp
3746ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4468ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3747{ 4469{
3748 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4470 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3749} 4471}
3750 4472
3751#if EV_PERIODIC_ENABLE 4473#if EV_PERIODIC_ENABLE
3752void noinline 4474ecb_noinline
4475void
3753ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4476ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3754{ 4477{
3755 if (expect_false (ev_is_active (w))) 4478 if (ecb_expect_false (ev_is_active (w)))
3756 return; 4479 return;
4480
4481#if EV_USE_TIMERFD
4482 if (timerfd == -2)
4483 evtimerfd_init (EV_A);
4484#endif
3757 4485
3758 if (w->reschedule_cb) 4486 if (w->reschedule_cb)
3759 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4487 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3760 else if (w->interval) 4488 else if (w->interval)
3761 { 4489 {
… …
3767 4495
3768 EV_FREQUENT_CHECK; 4496 EV_FREQUENT_CHECK;
3769 4497
3770 ++periodiccnt; 4498 ++periodiccnt;
3771 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4499 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3772 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4500 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3773 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4501 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3774 ANHE_at_cache (periodics [ev_active (w)]); 4502 ANHE_at_cache (periodics [ev_active (w)]);
3775 upheap (periodics, ev_active (w)); 4503 upheap (periodics, ev_active (w));
3776 4504
3777 EV_FREQUENT_CHECK; 4505 EV_FREQUENT_CHECK;
3778 4506
3779 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4507 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3780} 4508}
3781 4509
3782void noinline 4510ecb_noinline
4511void
3783ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4512ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3784{ 4513{
3785 clear_pending (EV_A_ (W)w); 4514 clear_pending (EV_A_ (W)w);
3786 if (expect_false (!ev_is_active (w))) 4515 if (ecb_expect_false (!ev_is_active (w)))
3787 return; 4516 return;
3788 4517
3789 EV_FREQUENT_CHECK; 4518 EV_FREQUENT_CHECK;
3790 4519
3791 { 4520 {
… …
3793 4522
3794 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4523 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3795 4524
3796 --periodiccnt; 4525 --periodiccnt;
3797 4526
3798 if (expect_true (active < periodiccnt + HEAP0)) 4527 if (ecb_expect_true (active < periodiccnt + HEAP0))
3799 { 4528 {
3800 periodics [active] = periodics [periodiccnt + HEAP0]; 4529 periodics [active] = periodics [periodiccnt + HEAP0];
3801 adjustheap (periodics, periodiccnt, active); 4530 adjustheap (periodics, periodiccnt, active);
3802 } 4531 }
3803 } 4532 }
… …
3805 ev_stop (EV_A_ (W)w); 4534 ev_stop (EV_A_ (W)w);
3806 4535
3807 EV_FREQUENT_CHECK; 4536 EV_FREQUENT_CHECK;
3808} 4537}
3809 4538
3810void noinline 4539ecb_noinline
4540void
3811ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4541ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3812{ 4542{
3813 /* TODO: use adjustheap and recalculation */ 4543 /* TODO: use adjustheap and recalculation */
3814 ev_periodic_stop (EV_A_ w); 4544 ev_periodic_stop (EV_A_ w);
3815 ev_periodic_start (EV_A_ w); 4545 ev_periodic_start (EV_A_ w);
3816} 4546}
… …
3820# define SA_RESTART 0 4550# define SA_RESTART 0
3821#endif 4551#endif
3822 4552
3823#if EV_SIGNAL_ENABLE 4553#if EV_SIGNAL_ENABLE
3824 4554
3825void noinline 4555ecb_noinline
4556void
3826ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4557ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3827{ 4558{
3828 if (expect_false (ev_is_active (w))) 4559 if (ecb_expect_false (ev_is_active (w)))
3829 return; 4560 return;
3830 4561
3831 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4562 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3832 4563
3833#if EV_MULTIPLICITY 4564#if EV_MULTIPLICITY
… …
3902 } 4633 }
3903 4634
3904 EV_FREQUENT_CHECK; 4635 EV_FREQUENT_CHECK;
3905} 4636}
3906 4637
3907void noinline 4638ecb_noinline
4639void
3908ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4640ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3909{ 4641{
3910 clear_pending (EV_A_ (W)w); 4642 clear_pending (EV_A_ (W)w);
3911 if (expect_false (!ev_is_active (w))) 4643 if (ecb_expect_false (!ev_is_active (w)))
3912 return; 4644 return;
3913 4645
3914 EV_FREQUENT_CHECK; 4646 EV_FREQUENT_CHECK;
3915 4647
3916 wlist_del (&signals [w->signum - 1].head, (WL)w); 4648 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3944#endif 4676#endif
3945 4677
3946#if EV_CHILD_ENABLE 4678#if EV_CHILD_ENABLE
3947 4679
3948void 4680void
3949ev_child_start (EV_P_ ev_child *w) EV_THROW 4681ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3950{ 4682{
3951#if EV_MULTIPLICITY 4683#if EV_MULTIPLICITY
3952 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4684 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3953#endif 4685#endif
3954 if (expect_false (ev_is_active (w))) 4686 if (ecb_expect_false (ev_is_active (w)))
3955 return; 4687 return;
3956 4688
3957 EV_FREQUENT_CHECK; 4689 EV_FREQUENT_CHECK;
3958 4690
3959 ev_start (EV_A_ (W)w, 1); 4691 ev_start (EV_A_ (W)w, 1);
… …
3961 4693
3962 EV_FREQUENT_CHECK; 4694 EV_FREQUENT_CHECK;
3963} 4695}
3964 4696
3965void 4697void
3966ev_child_stop (EV_P_ ev_child *w) EV_THROW 4698ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3967{ 4699{
3968 clear_pending (EV_A_ (W)w); 4700 clear_pending (EV_A_ (W)w);
3969 if (expect_false (!ev_is_active (w))) 4701 if (ecb_expect_false (!ev_is_active (w)))
3970 return; 4702 return;
3971 4703
3972 EV_FREQUENT_CHECK; 4704 EV_FREQUENT_CHECK;
3973 4705
3974 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4706 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
3988 4720
3989#define DEF_STAT_INTERVAL 5.0074891 4721#define DEF_STAT_INTERVAL 5.0074891
3990#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4722#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3991#define MIN_STAT_INTERVAL 0.1074891 4723#define MIN_STAT_INTERVAL 0.1074891
3992 4724
3993static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4725ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3994 4726
3995#if EV_USE_INOTIFY 4727#if EV_USE_INOTIFY
3996 4728
3997/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4729/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3998# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4730# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3999 4731
4000static void noinline 4732ecb_noinline
4733static void
4001infy_add (EV_P_ ev_stat *w) 4734infy_add (EV_P_ ev_stat *w)
4002{ 4735{
4003 w->wd = inotify_add_watch (fs_fd, w->path, 4736 w->wd = inotify_add_watch (fs_fd, w->path,
4004 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4737 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4005 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4738 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4069 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4802 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4070 ev_timer_again (EV_A_ &w->timer); 4803 ev_timer_again (EV_A_ &w->timer);
4071 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4804 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4072} 4805}
4073 4806
4074static void noinline 4807ecb_noinline
4808static void
4075infy_del (EV_P_ ev_stat *w) 4809infy_del (EV_P_ ev_stat *w)
4076{ 4810{
4077 int slot; 4811 int slot;
4078 int wd = w->wd; 4812 int wd = w->wd;
4079 4813
… …
4086 4820
4087 /* remove this watcher, if others are watching it, they will rearm */ 4821 /* remove this watcher, if others are watching it, they will rearm */
4088 inotify_rm_watch (fs_fd, wd); 4822 inotify_rm_watch (fs_fd, wd);
4089} 4823}
4090 4824
4091static void noinline 4825ecb_noinline
4826static void
4092infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4827infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4093{ 4828{
4094 if (slot < 0) 4829 if (slot < 0)
4095 /* overflow, need to check for all hash slots */ 4830 /* overflow, need to check for all hash slots */
4096 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4831 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4132 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4867 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4133 ofs += sizeof (struct inotify_event) + ev->len; 4868 ofs += sizeof (struct inotify_event) + ev->len;
4134 } 4869 }
4135} 4870}
4136 4871
4137inline_size void ecb_cold 4872inline_size ecb_cold
4873void
4138ev_check_2625 (EV_P) 4874ev_check_2625 (EV_P)
4139{ 4875{
4140 /* kernels < 2.6.25 are borked 4876 /* kernels < 2.6.25 are borked
4141 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4877 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4142 */ 4878 */
… …
4232#else 4968#else
4233# define EV_LSTAT(p,b) lstat (p, b) 4969# define EV_LSTAT(p,b) lstat (p, b)
4234#endif 4970#endif
4235 4971
4236void 4972void
4237ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4973ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4238{ 4974{
4239 if (lstat (w->path, &w->attr) < 0) 4975 if (lstat (w->path, &w->attr) < 0)
4240 w->attr.st_nlink = 0; 4976 w->attr.st_nlink = 0;
4241 else if (!w->attr.st_nlink) 4977 else if (!w->attr.st_nlink)
4242 w->attr.st_nlink = 1; 4978 w->attr.st_nlink = 1;
4243} 4979}
4244 4980
4245static void noinline 4981ecb_noinline
4982static void
4246stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4983stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4247{ 4984{
4248 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4985 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4249 4986
4250 ev_statdata prev = w->attr; 4987 ev_statdata prev = w->attr;
… …
4281 ev_feed_event (EV_A_ w, EV_STAT); 5018 ev_feed_event (EV_A_ w, EV_STAT);
4282 } 5019 }
4283} 5020}
4284 5021
4285void 5022void
4286ev_stat_start (EV_P_ ev_stat *w) EV_THROW 5023ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4287{ 5024{
4288 if (expect_false (ev_is_active (w))) 5025 if (ecb_expect_false (ev_is_active (w)))
4289 return; 5026 return;
4290 5027
4291 ev_stat_stat (EV_A_ w); 5028 ev_stat_stat (EV_A_ w);
4292 5029
4293 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5030 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4312 5049
4313 EV_FREQUENT_CHECK; 5050 EV_FREQUENT_CHECK;
4314} 5051}
4315 5052
4316void 5053void
4317ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 5054ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4318{ 5055{
4319 clear_pending (EV_A_ (W)w); 5056 clear_pending (EV_A_ (W)w);
4320 if (expect_false (!ev_is_active (w))) 5057 if (ecb_expect_false (!ev_is_active (w)))
4321 return; 5058 return;
4322 5059
4323 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4324 5061
4325#if EV_USE_INOTIFY 5062#if EV_USE_INOTIFY
… …
4338} 5075}
4339#endif 5076#endif
4340 5077
4341#if EV_IDLE_ENABLE 5078#if EV_IDLE_ENABLE
4342void 5079void
4343ev_idle_start (EV_P_ ev_idle *w) EV_THROW 5080ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4344{ 5081{
4345 if (expect_false (ev_is_active (w))) 5082 if (ecb_expect_false (ev_is_active (w)))
4346 return; 5083 return;
4347 5084
4348 pri_adjust (EV_A_ (W)w); 5085 pri_adjust (EV_A_ (W)w);
4349 5086
4350 EV_FREQUENT_CHECK; 5087 EV_FREQUENT_CHECK;
… …
4353 int active = ++idlecnt [ABSPRI (w)]; 5090 int active = ++idlecnt [ABSPRI (w)];
4354 5091
4355 ++idleall; 5092 ++idleall;
4356 ev_start (EV_A_ (W)w, active); 5093 ev_start (EV_A_ (W)w, active);
4357 5094
4358 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 5095 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4359 idles [ABSPRI (w)][active - 1] = w; 5096 idles [ABSPRI (w)][active - 1] = w;
4360 } 5097 }
4361 5098
4362 EV_FREQUENT_CHECK; 5099 EV_FREQUENT_CHECK;
4363} 5100}
4364 5101
4365void 5102void
4366ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 5103ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4367{ 5104{
4368 clear_pending (EV_A_ (W)w); 5105 clear_pending (EV_A_ (W)w);
4369 if (expect_false (!ev_is_active (w))) 5106 if (ecb_expect_false (!ev_is_active (w)))
4370 return; 5107 return;
4371 5108
4372 EV_FREQUENT_CHECK; 5109 EV_FREQUENT_CHECK;
4373 5110
4374 { 5111 {
… …
4385} 5122}
4386#endif 5123#endif
4387 5124
4388#if EV_PREPARE_ENABLE 5125#if EV_PREPARE_ENABLE
4389void 5126void
4390ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 5127ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4391{ 5128{
4392 if (expect_false (ev_is_active (w))) 5129 if (ecb_expect_false (ev_is_active (w)))
4393 return; 5130 return;
4394 5131
4395 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4396 5133
4397 ev_start (EV_A_ (W)w, ++preparecnt); 5134 ev_start (EV_A_ (W)w, ++preparecnt);
4398 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 5135 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4399 prepares [preparecnt - 1] = w; 5136 prepares [preparecnt - 1] = w;
4400 5137
4401 EV_FREQUENT_CHECK; 5138 EV_FREQUENT_CHECK;
4402} 5139}
4403 5140
4404void 5141void
4405ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 5142ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4406{ 5143{
4407 clear_pending (EV_A_ (W)w); 5144 clear_pending (EV_A_ (W)w);
4408 if (expect_false (!ev_is_active (w))) 5145 if (ecb_expect_false (!ev_is_active (w)))
4409 return; 5146 return;
4410 5147
4411 EV_FREQUENT_CHECK; 5148 EV_FREQUENT_CHECK;
4412 5149
4413 { 5150 {
… …
4423} 5160}
4424#endif 5161#endif
4425 5162
4426#if EV_CHECK_ENABLE 5163#if EV_CHECK_ENABLE
4427void 5164void
4428ev_check_start (EV_P_ ev_check *w) EV_THROW 5165ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4429{ 5166{
4430 if (expect_false (ev_is_active (w))) 5167 if (ecb_expect_false (ev_is_active (w)))
4431 return; 5168 return;
4432 5169
4433 EV_FREQUENT_CHECK; 5170 EV_FREQUENT_CHECK;
4434 5171
4435 ev_start (EV_A_ (W)w, ++checkcnt); 5172 ev_start (EV_A_ (W)w, ++checkcnt);
4436 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5173 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4437 checks [checkcnt - 1] = w; 5174 checks [checkcnt - 1] = w;
4438 5175
4439 EV_FREQUENT_CHECK; 5176 EV_FREQUENT_CHECK;
4440} 5177}
4441 5178
4442void 5179void
4443ev_check_stop (EV_P_ ev_check *w) EV_THROW 5180ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4444{ 5181{
4445 clear_pending (EV_A_ (W)w); 5182 clear_pending (EV_A_ (W)w);
4446 if (expect_false (!ev_is_active (w))) 5183 if (ecb_expect_false (!ev_is_active (w)))
4447 return; 5184 return;
4448 5185
4449 EV_FREQUENT_CHECK; 5186 EV_FREQUENT_CHECK;
4450 5187
4451 { 5188 {
… …
4460 EV_FREQUENT_CHECK; 5197 EV_FREQUENT_CHECK;
4461} 5198}
4462#endif 5199#endif
4463 5200
4464#if EV_EMBED_ENABLE 5201#if EV_EMBED_ENABLE
4465void noinline 5202ecb_noinline
5203void
4466ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5204ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4467{ 5205{
4468 ev_run (w->other, EVRUN_NOWAIT); 5206 ev_run (w->other, EVRUN_NOWAIT);
4469} 5207}
4470 5208
4471static void 5209static void
… …
4493 ev_run (EV_A_ EVRUN_NOWAIT); 5231 ev_run (EV_A_ EVRUN_NOWAIT);
4494 } 5232 }
4495 } 5233 }
4496} 5234}
4497 5235
5236#if EV_FORK_ENABLE
4498static void 5237static void
4499embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5238embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4500{ 5239{
4501 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5240 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4502 5241
… …
4509 ev_run (EV_A_ EVRUN_NOWAIT); 5248 ev_run (EV_A_ EVRUN_NOWAIT);
4510 } 5249 }
4511 5250
4512 ev_embed_start (EV_A_ w); 5251 ev_embed_start (EV_A_ w);
4513} 5252}
5253#endif
4514 5254
4515#if 0 5255#if 0
4516static void 5256static void
4517embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5257embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4518{ 5258{
4519 ev_idle_stop (EV_A_ idle); 5259 ev_idle_stop (EV_A_ idle);
4520} 5260}
4521#endif 5261#endif
4522 5262
4523void 5263void
4524ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5264ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4525{ 5265{
4526 if (expect_false (ev_is_active (w))) 5266 if (ecb_expect_false (ev_is_active (w)))
4527 return; 5267 return;
4528 5268
4529 { 5269 {
4530 EV_P = w->other; 5270 EV_P = w->other;
4531 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5271 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4539 5279
4540 ev_prepare_init (&w->prepare, embed_prepare_cb); 5280 ev_prepare_init (&w->prepare, embed_prepare_cb);
4541 ev_set_priority (&w->prepare, EV_MINPRI); 5281 ev_set_priority (&w->prepare, EV_MINPRI);
4542 ev_prepare_start (EV_A_ &w->prepare); 5282 ev_prepare_start (EV_A_ &w->prepare);
4543 5283
5284#if EV_FORK_ENABLE
4544 ev_fork_init (&w->fork, embed_fork_cb); 5285 ev_fork_init (&w->fork, embed_fork_cb);
4545 ev_fork_start (EV_A_ &w->fork); 5286 ev_fork_start (EV_A_ &w->fork);
5287#endif
4546 5288
4547 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5289 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4548 5290
4549 ev_start (EV_A_ (W)w, 1); 5291 ev_start (EV_A_ (W)w, 1);
4550 5292
4551 EV_FREQUENT_CHECK; 5293 EV_FREQUENT_CHECK;
4552} 5294}
4553 5295
4554void 5296void
4555ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5297ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4556{ 5298{
4557 clear_pending (EV_A_ (W)w); 5299 clear_pending (EV_A_ (W)w);
4558 if (expect_false (!ev_is_active (w))) 5300 if (ecb_expect_false (!ev_is_active (w)))
4559 return; 5301 return;
4560 5302
4561 EV_FREQUENT_CHECK; 5303 EV_FREQUENT_CHECK;
4562 5304
4563 ev_io_stop (EV_A_ &w->io); 5305 ev_io_stop (EV_A_ &w->io);
4564 ev_prepare_stop (EV_A_ &w->prepare); 5306 ev_prepare_stop (EV_A_ &w->prepare);
5307#if EV_FORK_ENABLE
4565 ev_fork_stop (EV_A_ &w->fork); 5308 ev_fork_stop (EV_A_ &w->fork);
5309#endif
4566 5310
4567 ev_stop (EV_A_ (W)w); 5311 ev_stop (EV_A_ (W)w);
4568 5312
4569 EV_FREQUENT_CHECK; 5313 EV_FREQUENT_CHECK;
4570} 5314}
4571#endif 5315#endif
4572 5316
4573#if EV_FORK_ENABLE 5317#if EV_FORK_ENABLE
4574void 5318void
4575ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5319ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4576{ 5320{
4577 if (expect_false (ev_is_active (w))) 5321 if (ecb_expect_false (ev_is_active (w)))
4578 return; 5322 return;
4579 5323
4580 EV_FREQUENT_CHECK; 5324 EV_FREQUENT_CHECK;
4581 5325
4582 ev_start (EV_A_ (W)w, ++forkcnt); 5326 ev_start (EV_A_ (W)w, ++forkcnt);
4583 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5327 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4584 forks [forkcnt - 1] = w; 5328 forks [forkcnt - 1] = w;
4585 5329
4586 EV_FREQUENT_CHECK; 5330 EV_FREQUENT_CHECK;
4587} 5331}
4588 5332
4589void 5333void
4590ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5334ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4591{ 5335{
4592 clear_pending (EV_A_ (W)w); 5336 clear_pending (EV_A_ (W)w);
4593 if (expect_false (!ev_is_active (w))) 5337 if (ecb_expect_false (!ev_is_active (w)))
4594 return; 5338 return;
4595 5339
4596 EV_FREQUENT_CHECK; 5340 EV_FREQUENT_CHECK;
4597 5341
4598 { 5342 {
… …
4608} 5352}
4609#endif 5353#endif
4610 5354
4611#if EV_CLEANUP_ENABLE 5355#if EV_CLEANUP_ENABLE
4612void 5356void
4613ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5357ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4614{ 5358{
4615 if (expect_false (ev_is_active (w))) 5359 if (ecb_expect_false (ev_is_active (w)))
4616 return; 5360 return;
4617 5361
4618 EV_FREQUENT_CHECK; 5362 EV_FREQUENT_CHECK;
4619 5363
4620 ev_start (EV_A_ (W)w, ++cleanupcnt); 5364 ev_start (EV_A_ (W)w, ++cleanupcnt);
4621 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5365 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4622 cleanups [cleanupcnt - 1] = w; 5366 cleanups [cleanupcnt - 1] = w;
4623 5367
4624 /* cleanup watchers should never keep a refcount on the loop */ 5368 /* cleanup watchers should never keep a refcount on the loop */
4625 ev_unref (EV_A); 5369 ev_unref (EV_A);
4626 EV_FREQUENT_CHECK; 5370 EV_FREQUENT_CHECK;
4627} 5371}
4628 5372
4629void 5373void
4630ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5374ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4631{ 5375{
4632 clear_pending (EV_A_ (W)w); 5376 clear_pending (EV_A_ (W)w);
4633 if (expect_false (!ev_is_active (w))) 5377 if (ecb_expect_false (!ev_is_active (w)))
4634 return; 5378 return;
4635 5379
4636 EV_FREQUENT_CHECK; 5380 EV_FREQUENT_CHECK;
4637 ev_ref (EV_A); 5381 ev_ref (EV_A);
4638 5382
… …
4649} 5393}
4650#endif 5394#endif
4651 5395
4652#if EV_ASYNC_ENABLE 5396#if EV_ASYNC_ENABLE
4653void 5397void
4654ev_async_start (EV_P_ ev_async *w) EV_THROW 5398ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4655{ 5399{
4656 if (expect_false (ev_is_active (w))) 5400 if (ecb_expect_false (ev_is_active (w)))
4657 return; 5401 return;
4658 5402
4659 w->sent = 0; 5403 w->sent = 0;
4660 5404
4661 evpipe_init (EV_A); 5405 evpipe_init (EV_A);
4662 5406
4663 EV_FREQUENT_CHECK; 5407 EV_FREQUENT_CHECK;
4664 5408
4665 ev_start (EV_A_ (W)w, ++asynccnt); 5409 ev_start (EV_A_ (W)w, ++asynccnt);
4666 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5410 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4667 asyncs [asynccnt - 1] = w; 5411 asyncs [asynccnt - 1] = w;
4668 5412
4669 EV_FREQUENT_CHECK; 5413 EV_FREQUENT_CHECK;
4670} 5414}
4671 5415
4672void 5416void
4673ev_async_stop (EV_P_ ev_async *w) EV_THROW 5417ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4674{ 5418{
4675 clear_pending (EV_A_ (W)w); 5419 clear_pending (EV_A_ (W)w);
4676 if (expect_false (!ev_is_active (w))) 5420 if (ecb_expect_false (!ev_is_active (w)))
4677 return; 5421 return;
4678 5422
4679 EV_FREQUENT_CHECK; 5423 EV_FREQUENT_CHECK;
4680 5424
4681 { 5425 {
… …
4689 5433
4690 EV_FREQUENT_CHECK; 5434 EV_FREQUENT_CHECK;
4691} 5435}
4692 5436
4693void 5437void
4694ev_async_send (EV_P_ ev_async *w) EV_THROW 5438ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4695{ 5439{
4696 w->sent = 1; 5440 w->sent = 1;
4697 evpipe_write (EV_A_ &async_pending); 5441 evpipe_write (EV_A_ &async_pending);
4698} 5442}
4699#endif 5443#endif
… …
4736 5480
4737 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5481 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4738} 5482}
4739 5483
4740void 5484void
4741ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5485ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4742{ 5486{
4743 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5487 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4744
4745 if (expect_false (!once))
4746 {
4747 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4748 return;
4749 }
4750 5488
4751 once->cb = cb; 5489 once->cb = cb;
4752 once->arg = arg; 5490 once->arg = arg;
4753 5491
4754 ev_init (&once->io, once_cb_io); 5492 ev_init (&once->io, once_cb_io);
… …
4767} 5505}
4768 5506
4769/*****************************************************************************/ 5507/*****************************************************************************/
4770 5508
4771#if EV_WALK_ENABLE 5509#if EV_WALK_ENABLE
4772void ecb_cold 5510ecb_cold
5511void
4773ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5512ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4774{ 5513{
4775 int i, j; 5514 int i, j;
4776 ev_watcher_list *wl, *wn; 5515 ev_watcher_list *wl, *wn;
4777 5516
4778 if (types & (EV_IO | EV_EMBED)) 5517 if (types & (EV_IO | EV_EMBED))

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