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Comparing libev/ev.c (file contents):
Revision 1.478 by root, Sun Oct 11 13:38:44 2015 UTC vs.
Revision 1.536 by root, Wed Aug 10 16:50:05 2022 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) 2007-2020 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 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#pragma clang diagnostic ignored "-Wunused-value"
41#pragma clang diagnostic ignored "-Wcomment"
42#pragma clang diagnostic ignored "-Wextern-initializer"
43
40/* this big block deduces configuration from config.h */ 44/* this big block deduces configuration from config.h */
41#ifndef EV_STANDALONE 45#ifndef EV_STANDALONE
42# ifdef EV_CONFIG_H 46# ifdef EV_CONFIG_H
43# include EV_CONFIG_H 47# include EV_CONFIG_H
44# else 48# else
… …
115# else 119# else
116# undef EV_USE_EPOLL 120# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 121# define EV_USE_EPOLL 0
118# endif 122# endif
119 123
124# if HAVE_LINUX_AIO_ABI_H
125# ifndef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
127# endif
128# else
129# undef EV_USE_LINUXAIO
130# define EV_USE_LINUXAIO 0
131# endif
132
133# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
134# ifndef EV_USE_IOURING
135# define EV_USE_IOURING EV_FEATURE_BACKENDS
136# endif
137# else
138# undef EV_USE_IOURING
139# define EV_USE_IOURING 0
140# endif
141
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 142# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 143# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 144# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 145# endif
124# else 146# else
… …
159# endif 181# endif
160# else 182# else
161# undef EV_USE_EVENTFD 183# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 184# define EV_USE_EVENTFD 0
163# endif 185# endif
164 186
187# if HAVE_SYS_TIMERFD_H
188# ifndef EV_USE_TIMERFD
189# define EV_USE_TIMERFD EV_FEATURE_OS
190# endif
191# else
192# undef EV_USE_TIMERFD
193# define EV_USE_TIMERFD 0
165#endif 194# endif
195
196#endif
197
198/* OS X, in its infinite idiocy, actually HARDCODES
199 * a limit of 1024 into their select. Where people have brains,
200 * OS X engineers apparently have a vacuum. Or maybe they were
201 * ordered to have a vacuum, or they do anything for money.
202 * This might help. Or not.
203 * Note that this must be defined early, as other include files
204 * will rely on this define as well.
205 */
206#define _DARWIN_UNLIMITED_SELECT 1
166 207
167#include <stdlib.h> 208#include <stdlib.h>
168#include <string.h> 209#include <string.h>
169#include <fcntl.h> 210#include <fcntl.h>
170#include <stddef.h> 211#include <stddef.h>
… …
208# ifndef EV_SELECT_IS_WINSOCKET 249# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 250# define EV_SELECT_IS_WINSOCKET 1
210# endif 251# endif
211# undef EV_AVOID_STDIO 252# undef EV_AVOID_STDIO
212#endif 253#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
221 254
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 255/* this block tries to deduce configuration from header-defined symbols and defaults */
223 256
224/* try to deduce the maximum number of signals on this platform */ 257/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 258#if defined EV_NSIG
… …
313 346
314#ifndef EV_USE_PORT 347#ifndef EV_USE_PORT
315# define EV_USE_PORT 0 348# define EV_USE_PORT 0
316#endif 349#endif
317 350
351#ifndef EV_USE_LINUXAIO
352# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
353# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
354# else
355# define EV_USE_LINUXAIO 0
356# endif
357#endif
358
359#ifndef EV_USE_IOURING
360# if __linux /* later checks might disable again */
361# define EV_USE_IOURING 1
362# else
363# define EV_USE_IOURING 0
364# endif
365#endif
366
318#ifndef EV_USE_INOTIFY 367#ifndef EV_USE_INOTIFY
319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 368# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
320# define EV_USE_INOTIFY EV_FEATURE_OS 369# define EV_USE_INOTIFY EV_FEATURE_OS
321# else 370# else
322# define EV_USE_INOTIFY 0 371# define EV_USE_INOTIFY 0
… …
345# else 394# else
346# define EV_USE_SIGNALFD 0 395# define EV_USE_SIGNALFD 0
347# endif 396# endif
348#endif 397#endif
349 398
399#ifndef EV_USE_TIMERFD
400# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8))
401# define EV_USE_TIMERFD EV_FEATURE_OS
402# else
403# define EV_USE_TIMERFD 0
404# endif
405#endif
406
350#if 0 /* debugging */ 407#if 0 /* debugging */
351# define EV_VERIFY 3 408# define EV_VERIFY 3
352# define EV_USE_4HEAP 1 409# define EV_USE_4HEAP 1
353# define EV_HEAP_CACHE_AT 1 410# define EV_HEAP_CACHE_AT 1
354#endif 411#endif
… …
363 420
364#ifndef EV_HEAP_CACHE_AT 421#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 422# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 423#endif
367 424
368#ifdef ANDROID 425#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 426/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 427# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 428# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 429/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 430# undef EV_USE_CLOCK_SYSCALL
… …
387# include <sys/syscall.h> 444# include <sys/syscall.h>
388# ifdef SYS_clock_gettime 445# ifdef SYS_clock_gettime
389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 446# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
390# undef EV_USE_MONOTONIC 447# undef EV_USE_MONOTONIC
391# define EV_USE_MONOTONIC 1 448# define EV_USE_MONOTONIC 1
449# define EV_NEED_SYSCALL 1
392# else 450# else
393# undef EV_USE_CLOCK_SYSCALL 451# undef EV_USE_CLOCK_SYSCALL
394# define EV_USE_CLOCK_SYSCALL 0 452# define EV_USE_CLOCK_SYSCALL 0
395# endif 453# endif
396#endif 454#endif
… …
410#if !EV_STAT_ENABLE 468#if !EV_STAT_ENABLE
411# undef EV_USE_INOTIFY 469# undef EV_USE_INOTIFY
412# define EV_USE_INOTIFY 0 470# define EV_USE_INOTIFY 0
413#endif 471#endif
414 472
473#if __linux && EV_USE_IOURING
474# include <linux/version.h>
475# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
476# undef EV_USE_IOURING
477# define EV_USE_IOURING 0
478# endif
479#endif
480
415#if !EV_USE_NANOSLEEP 481#if !EV_USE_NANOSLEEP
416/* hp-ux has it in sys/time.h, which we unconditionally include above */ 482/* hp-ux has it in sys/time.h, which we unconditionally include above */
417# if !defined _WIN32 && !defined __hpux 483# if !defined _WIN32 && !defined __hpux
418# include <sys/select.h> 484# include <sys/select.h>
485# endif
486#endif
487
488#if EV_USE_LINUXAIO
489# include <sys/syscall.h>
490# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
491# define EV_NEED_SYSCALL 1
492# else
493# undef EV_USE_LINUXAIO
494# define EV_USE_LINUXAIO 0
495# endif
496#endif
497
498#if EV_USE_IOURING
499# include <sys/syscall.h>
500# if !SYS_io_uring_register && __linux && !__alpha
501# define SYS_io_uring_setup 425
502# define SYS_io_uring_enter 426
503# define SYS_io_uring_register 427
504# endif
505# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
506# define EV_NEED_SYSCALL 1
507# else
508# undef EV_USE_IOURING
509# define EV_USE_IOURING 0
419# endif 510# endif
420#endif 511#endif
421 512
422#if EV_USE_INOTIFY 513#if EV_USE_INOTIFY
423# include <sys/statfs.h> 514# include <sys/statfs.h>
… …
428# define EV_USE_INOTIFY 0 519# define EV_USE_INOTIFY 0
429# endif 520# endif
430#endif 521#endif
431 522
432#if EV_USE_EVENTFD 523#if EV_USE_EVENTFD
433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 524/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
434# include <stdint.h> 525# include <stdint.h>
435# ifndef EFD_NONBLOCK 526# ifndef EFD_NONBLOCK
436# define EFD_NONBLOCK O_NONBLOCK 527# define EFD_NONBLOCK O_NONBLOCK
437# endif 528# endif
438# ifndef EFD_CLOEXEC 529# ifndef EFD_CLOEXEC
… …
444# endif 535# endif
445EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 536EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
446#endif 537#endif
447 538
448#if EV_USE_SIGNALFD 539#if EV_USE_SIGNALFD
449/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 540/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
450# include <stdint.h> 541# include <stdint.h>
451# ifndef SFD_NONBLOCK 542# ifndef SFD_NONBLOCK
452# define SFD_NONBLOCK O_NONBLOCK 543# define SFD_NONBLOCK O_NONBLOCK
453# endif 544# endif
454# ifndef SFD_CLOEXEC 545# ifndef SFD_CLOEXEC
… …
456# define SFD_CLOEXEC O_CLOEXEC 547# define SFD_CLOEXEC O_CLOEXEC
457# else 548# else
458# define SFD_CLOEXEC 02000000 549# define SFD_CLOEXEC 02000000
459# endif 550# endif
460# endif 551# endif
461EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); 552EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags);
462 553
463struct signalfd_siginfo 554struct signalfd_siginfo
464{ 555{
465 uint32_t ssi_signo; 556 uint32_t ssi_signo;
466 char pad[128 - sizeof (uint32_t)]; 557 char pad[128 - sizeof (uint32_t)];
467}; 558};
468#endif 559#endif
469 560
470/**/ 561/* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */
562#if EV_USE_TIMERFD
563# include <sys/timerfd.h>
564/* timerfd is only used for periodics */
565# if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE
566# undef EV_USE_TIMERFD
567# define EV_USE_TIMERFD 0
568# endif
569#endif
570
571/*****************************************************************************/
471 572
472#if EV_VERIFY >= 3 573#if EV_VERIFY >= 3
473# define EV_FREQUENT_CHECK ev_verify (EV_A) 574# define EV_FREQUENT_CHECK ev_verify (EV_A)
474#else 575#else
475# define EV_FREQUENT_CHECK do { } while (0) 576# define EV_FREQUENT_CHECK do { } while (0)
… …
480 * This value is good at least till the year 4000. 581 * This value is good at least till the year 4000.
481 */ 582 */
482#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 583#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
483/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 584/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
484 585
485#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 586#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
486#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 587#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
588#define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */
487 589
590/* find a portable timestamp that is "always" in the future but fits into time_t.
591 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
592 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
593#define EV_TSTAMP_HUGE \
594 (sizeof (time_t) >= 8 ? 10000000000000. \
595 : 0 < (time_t)4294967295 ? 4294967295. \
596 : 2147483647.) \
597
598#ifndef EV_TS_CONST
599# define EV_TS_CONST(nv) nv
600# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
601# define EV_TS_FROM_USEC(us) us * 1e-6
488#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 602# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
489#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 603# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
604# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
605# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
606#endif
490 607
491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 608/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
492/* ECB.H BEGIN */ 609/* ECB.H BEGIN */
493/* 610/*
494 * libecb - http://software.schmorp.de/pkg/libecb 611 * libecb - http://software.schmorp.de/pkg/libecb
495 * 612 *
496 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> 613 * Copyright (©) 2009-2015,2018-2020 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta 614 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved. 615 * All rights reserved.
499 * 616 *
500 * Redistribution and use in source and binary forms, with or without modifica- 617 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met: 618 * tion, are permitted provided that the following conditions are met:
… …
532 649
533#ifndef ECB_H 650#ifndef ECB_H
534#define ECB_H 651#define ECB_H
535 652
536/* 16 bits major, 16 bits minor */ 653/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004 654#define ECB_VERSION 0x00010008
538 655
539#ifdef _WIN32 656#include <string.h> /* for memcpy */
657
658#if defined (_WIN32) && !defined (__MINGW32__)
540 typedef signed char int8_t; 659 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 660 typedef unsigned char uint8_t;
661 typedef signed char int_fast8_t;
662 typedef unsigned char uint_fast8_t;
542 typedef signed short int16_t; 663 typedef signed short int16_t;
543 typedef unsigned short uint16_t; 664 typedef unsigned short uint16_t;
665 typedef signed int int_fast16_t;
666 typedef unsigned int uint_fast16_t;
544 typedef signed int int32_t; 667 typedef signed int int32_t;
545 typedef unsigned int uint32_t; 668 typedef unsigned int uint32_t;
669 typedef signed int int_fast32_t;
670 typedef unsigned int uint_fast32_t;
546 #if __GNUC__ 671 #if __GNUC__
547 typedef signed long long int64_t; 672 typedef signed long long int64_t;
548 typedef unsigned long long uint64_t; 673 typedef unsigned long long uint64_t;
549 #else /* _MSC_VER || __BORLANDC__ */ 674 #else /* _MSC_VER || __BORLANDC__ */
550 typedef signed __int64 int64_t; 675 typedef signed __int64 int64_t;
551 typedef unsigned __int64 uint64_t; 676 typedef unsigned __int64 uint64_t;
552 #endif 677 #endif
678 typedef int64_t int_fast64_t;
679 typedef uint64_t uint_fast64_t;
553 #ifdef _WIN64 680 #ifdef _WIN64
554 #define ECB_PTRSIZE 8 681 #define ECB_PTRSIZE 8
555 typedef uint64_t uintptr_t; 682 typedef uint64_t uintptr_t;
556 typedef int64_t intptr_t; 683 typedef int64_t intptr_t;
557 #else 684 #else
… …
559 typedef uint32_t uintptr_t; 686 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t; 687 typedef int32_t intptr_t;
561 #endif 688 #endif
562#else 689#else
563 #include <inttypes.h> 690 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU 691 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8 692 #define ECB_PTRSIZE 8
566 #else 693 #else
567 #define ECB_PTRSIZE 4 694 #define ECB_PTRSIZE 4
568 #endif 695 #endif
569#endif 696#endif
570 697
571#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) 698#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
572#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) 699#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
700
701#ifndef ECB_OPTIMIZE_SIZE
702 #if __OPTIMIZE_SIZE__
703 #define ECB_OPTIMIZE_SIZE 1
704 #else
705 #define ECB_OPTIMIZE_SIZE 0
706 #endif
707#endif
573 708
574/* work around x32 idiocy by defining proper macros */ 709/* work around x32 idiocy by defining proper macros */
575#if ECB_GCC_AMD64 || ECB_MSVC_AMD64 710#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
576 #if _ILP32 711 #if _ILP32
577 #define ECB_AMD64_X32 1 712 #define ECB_AMD64_X32 1
… …
607 #define ECB_CLANG_EXTENSION(x) 0 742 #define ECB_CLANG_EXTENSION(x) 0
608#endif 743#endif
609 744
610#define ECB_CPP (__cplusplus+0) 745#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L) 746#define ECB_CPP11 (__cplusplus >= 201103L)
747#define ECB_CPP14 (__cplusplus >= 201402L)
748#define ECB_CPP17 (__cplusplus >= 201703L)
612 749
613#if ECB_CPP 750#if ECB_CPP
614 #define ECB_C 0 751 #define ECB_C 0
615 #define ECB_STDC_VERSION 0 752 #define ECB_STDC_VERSION 0
616#else 753#else
… …
618 #define ECB_STDC_VERSION __STDC_VERSION__ 755 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif 756#endif
620 757
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 758#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 759#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
760#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
623 761
624#if ECB_CPP 762#if ECB_CPP
625 #define ECB_EXTERN_C extern "C" 763 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 764 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END } 765 #define ECB_EXTERN_C_END }
… …
647/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ 785/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
648#if __xlC__ && ECB_CPP 786#if __xlC__ && ECB_CPP
649 #include <builtins.h> 787 #include <builtins.h>
650#endif 788#endif
651 789
790#if 1400 <= _MSC_VER
791 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
792#endif
793
652#ifndef ECB_MEMORY_FENCE 794#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 795 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
796 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
654 #if __i386 || __i386__ 797 #if __i386 || __i386__
655 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 798 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
656 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 799 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
657 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 800 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
658 #elif ECB_GCC_AMD64 801 #elif ECB_GCC_AMD64
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 802 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 803 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 804 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
662 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 805 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 806 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
807 #elif defined __ARM_ARCH_2__ \
808 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
809 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
810 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
811 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
812 || defined __ARM_ARCH_5TEJ__
813 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
664 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 814 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
665 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 815 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
816 || defined __ARM_ARCH_6T2__
666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 817 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
667 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 818 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
668 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 819 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 820 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
670 #elif __aarch64__ 821 #elif __aarch64__
671 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 822 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
672 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) 823 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
673 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 824 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
… …
700 #if ECB_GCC_VERSION(4,7) 851 #if ECB_GCC_VERSION(4,7)
701 /* see comment below (stdatomic.h) about the C11 memory model. */ 852 /* see comment below (stdatomic.h) about the C11 memory model. */
702 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 853 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
703 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 854 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
704 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 855 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
856 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
705 857
706 #elif ECB_CLANG_EXTENSION(c_atomic) 858 #elif ECB_CLANG_EXTENSION(c_atomic)
707 /* see comment below (stdatomic.h) about the C11 memory model. */ 859 /* see comment below (stdatomic.h) about the C11 memory model. */
708 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 860 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
709 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 861 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
710 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 862 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
863 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
711 864
712 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 865 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
713 #define ECB_MEMORY_FENCE __sync_synchronize () 866 #define ECB_MEMORY_FENCE __sync_synchronize ()
714 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 867 #elif _MSC_VER >= 1500 /* VC++ 2008 */
715 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 868 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
725 #elif defined _WIN32 878 #elif defined _WIN32
726 #include <WinNT.h> 879 #include <WinNT.h>
727 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 880 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
728 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 881 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
729 #include <mbarrier.h> 882 #include <mbarrier.h>
730 #define ECB_MEMORY_FENCE __machine_rw_barrier () 883 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
731 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 884 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
732 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 885 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
886 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
733 #elif __xlC__ 887 #elif __xlC__
734 #define ECB_MEMORY_FENCE __sync () 888 #define ECB_MEMORY_FENCE __sync ()
735 #endif 889 #endif
736#endif 890#endif
737 891
738#ifndef ECB_MEMORY_FENCE 892#ifndef ECB_MEMORY_FENCE
739 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 893 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
740 /* we assume that these memory fences work on all variables/all memory accesses, */ 894 /* we assume that these memory fences work on all variables/all memory accesses, */
741 /* not just C11 atomics and atomic accesses */ 895 /* not just C11 atomics and atomic accesses */
742 #include <stdatomic.h> 896 #include <stdatomic.h>
743 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
744 /* any fence other than seq_cst, which isn't very efficient for us. */
745 /* Why that is, we don't know - either the C11 memory model is quite useless */
746 /* for most usages, or gcc and clang have a bug */
747 /* I *currently* lean towards the latter, and inefficiently implement */
748 /* all three of ecb's fences as a seq_cst fence */
749 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
750 /* for all __atomic_thread_fence's except seq_cst */
751 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 897 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
898 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
899 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
752 #endif 900 #endif
753#endif 901#endif
754 902
755#ifndef ECB_MEMORY_FENCE 903#ifndef ECB_MEMORY_FENCE
756 #if !ECB_AVOID_PTHREADS 904 #if !ECB_AVOID_PTHREADS
… …
774 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 922 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
775#endif 923#endif
776 924
777#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 925#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
778 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 926 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
927#endif
928
929#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
930 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
779#endif 931#endif
780 932
781/*****************************************************************************/ 933/*****************************************************************************/
782 934
783#if ECB_CPP 935#if ECB_CPP
… …
915#else 1067#else
916 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); 1068 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
917 ecb_function_ ecb_const int 1069 ecb_function_ ecb_const int
918 ecb_ctz32 (uint32_t x) 1070 ecb_ctz32 (uint32_t x)
919 { 1071 {
1072#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1073 unsigned long r;
1074 _BitScanForward (&r, x);
1075 return (int)r;
1076#else
920 int r = 0; 1077 int r = 0;
921 1078
922 x &= ~x + 1; /* this isolates the lowest bit */ 1079 x &= ~x + 1; /* this isolates the lowest bit */
923 1080
924#if ECB_branchless_on_i386 1081#if ECB_branchless_on_i386
… …
934 if (x & 0xff00ff00) r += 8; 1091 if (x & 0xff00ff00) r += 8;
935 if (x & 0xffff0000) r += 16; 1092 if (x & 0xffff0000) r += 16;
936#endif 1093#endif
937 1094
938 return r; 1095 return r;
1096#endif
939 } 1097 }
940 1098
941 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); 1099 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
942 ecb_function_ ecb_const int 1100 ecb_function_ ecb_const int
943 ecb_ctz64 (uint64_t x) 1101 ecb_ctz64 (uint64_t x)
944 { 1102 {
1103#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1104 unsigned long r;
1105 _BitScanForward64 (&r, x);
1106 return (int)r;
1107#else
945 int shift = x & 0xffffffffU ? 0 : 32; 1108 int shift = x & 0xffffffff ? 0 : 32;
946 return ecb_ctz32 (x >> shift) + shift; 1109 return ecb_ctz32 (x >> shift) + shift;
1110#endif
947 } 1111 }
948 1112
949 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); 1113 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
950 ecb_function_ ecb_const int 1114 ecb_function_ ecb_const int
951 ecb_popcount32 (uint32_t x) 1115 ecb_popcount32 (uint32_t x)
… …
959 } 1123 }
960 1124
961 ecb_function_ ecb_const int ecb_ld32 (uint32_t x); 1125 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
962 ecb_function_ ecb_const int ecb_ld32 (uint32_t x) 1126 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
963 { 1127 {
1128#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1129 unsigned long r;
1130 _BitScanReverse (&r, x);
1131 return (int)r;
1132#else
964 int r = 0; 1133 int r = 0;
965 1134
966 if (x >> 16) { x >>= 16; r += 16; } 1135 if (x >> 16) { x >>= 16; r += 16; }
967 if (x >> 8) { x >>= 8; r += 8; } 1136 if (x >> 8) { x >>= 8; r += 8; }
968 if (x >> 4) { x >>= 4; r += 4; } 1137 if (x >> 4) { x >>= 4; r += 4; }
969 if (x >> 2) { x >>= 2; r += 2; } 1138 if (x >> 2) { x >>= 2; r += 2; }
970 if (x >> 1) { r += 1; } 1139 if (x >> 1) { r += 1; }
971 1140
972 return r; 1141 return r;
1142#endif
973 } 1143 }
974 1144
975 ecb_function_ ecb_const int ecb_ld64 (uint64_t x); 1145 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
976 ecb_function_ ecb_const int ecb_ld64 (uint64_t x) 1146 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
977 { 1147 {
1148#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1149 unsigned long r;
1150 _BitScanReverse64 (&r, x);
1151 return (int)r;
1152#else
978 int r = 0; 1153 int r = 0;
979 1154
980 if (x >> 32) { x >>= 32; r += 32; } 1155 if (x >> 32) { x >>= 32; r += 32; }
981 1156
982 return r + ecb_ld32 (x); 1157 return r + ecb_ld32 (x);
1158#endif
983 } 1159 }
984#endif 1160#endif
985 1161
986ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); 1162ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
987ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1163ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
… …
1042ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1218ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
1043ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1219ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1044ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1220ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1045ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1221ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1046ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1222ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1223
1224#if ECB_CPP
1225
1226inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); }
1227inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); }
1228inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); }
1229inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); }
1230
1231inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); }
1232inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); }
1233inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); }
1234inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); }
1235
1236inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); }
1237inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); }
1238inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); }
1239inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); }
1240
1241inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); }
1242inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); }
1243inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); }
1244inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); }
1245
1246inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); }
1247inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); }
1248inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); }
1249
1250inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); }
1251inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); }
1252inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); }
1253inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); }
1254
1255inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); }
1256inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); }
1257inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); }
1258inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); }
1259
1260#endif
1047 1261
1048#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) 1262#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1049 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) 1263 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1050 #define ecb_bswap16(x) __builtin_bswap16 (x) 1264 #define ecb_bswap16(x) __builtin_bswap16 (x)
1051 #else 1265 #else
… …
1090#endif 1304#endif
1091 1305
1092/* try to tell the compiler that some condition is definitely true */ 1306/* try to tell the compiler that some condition is definitely true */
1093#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1307#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1094 1308
1095ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); 1309ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1096ecb_inline ecb_const unsigned char 1310ecb_inline ecb_const uint32_t
1097ecb_byteorder_helper (void) 1311ecb_byteorder_helper (void)
1098{ 1312{
1099 /* the union code still generates code under pressure in gcc, */ 1313 /* the union code still generates code under pressure in gcc, */
1100 /* but less than using pointers, and always seems to */ 1314 /* but less than using pointers, and always seems to */
1101 /* successfully return a constant. */ 1315 /* successfully return a constant. */
1102 /* the reason why we have this horrible preprocessor mess */ 1316 /* the reason why we have this horrible preprocessor mess */
1103 /* is to avoid it in all cases, at least on common architectures */ 1317 /* is to avoid it in all cases, at least on common architectures */
1104 /* or when using a recent enough gcc version (>= 4.6) */ 1318 /* or when using a recent enough gcc version (>= 4.6) */
1105#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
1106 return 0x44;
1107#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1319#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1320 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1321 #define ECB_LITTLE_ENDIAN 1
1108 return 0x44; 1322 return 0x44332211;
1109#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1323#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1324 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1325 #define ECB_BIG_ENDIAN 1
1110 return 0x11; 1326 return 0x11223344;
1111#else 1327#else
1112 union 1328 union
1113 { 1329 {
1330 uint8_t c[4];
1114 uint32_t i; 1331 uint32_t u;
1115 uint8_t c;
1116 } u = { 0x11223344 }; 1332 } u = { 0x11, 0x22, 0x33, 0x44 };
1117 return u.c; 1333 return u.u;
1118#endif 1334#endif
1119} 1335}
1120 1336
1121ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1337ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1122ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1338ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1123ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1339ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1124ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1340ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1341
1342/*****************************************************************************/
1343/* unaligned load/store */
1344
1345ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1346ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1347ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1348
1349ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1350ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1351ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1352
1353ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1354ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1355ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1356
1357ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); }
1358ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); }
1359ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); }
1360
1361ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); }
1362ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); }
1363ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); }
1364
1365ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1366ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1367ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1368
1369ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1370ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1371ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1372
1373ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); }
1374ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); }
1375ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); }
1376
1377ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); }
1378ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); }
1379ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); }
1380
1381ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); }
1382ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); }
1383ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); }
1384
1385#if ECB_CPP
1386
1387inline uint8_t ecb_bswap (uint8_t v) { return v; }
1388inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); }
1389inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); }
1390inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); }
1391
1392template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1393template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1394template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; }
1395template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); }
1396template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); }
1397template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; }
1398template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); }
1399template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); }
1400
1401template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1402template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1403template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; }
1404template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); }
1405template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); }
1406template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); }
1407template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); }
1408template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); }
1409
1410#endif
1411
1412/*****************************************************************************/
1125 1413
1126#if ECB_GCC_VERSION(3,0) || ECB_C99 1414#if ECB_GCC_VERSION(3,0) || ECB_C99
1127 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1415 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1128#else 1416#else
1129 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1417 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
… …
1153 return N; 1441 return N;
1154 } 1442 }
1155#else 1443#else
1156 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1444 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1157#endif 1445#endif
1446
1447/*****************************************************************************/
1448
1449ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1450ecb_function_ ecb_const uint32_t
1451ecb_binary16_to_binary32 (uint32_t x)
1452{
1453 unsigned int s = (x & 0x8000) << (31 - 15);
1454 int e = (x >> 10) & 0x001f;
1455 unsigned int m = x & 0x03ff;
1456
1457 if (ecb_expect_false (e == 31))
1458 /* infinity or NaN */
1459 e = 255 - (127 - 15);
1460 else if (ecb_expect_false (!e))
1461 {
1462 if (ecb_expect_true (!m))
1463 /* zero, handled by code below by forcing e to 0 */
1464 e = 0 - (127 - 15);
1465 else
1466 {
1467 /* subnormal, renormalise */
1468 unsigned int s = 10 - ecb_ld32 (m);
1469
1470 m = (m << s) & 0x3ff; /* mask implicit bit */
1471 e -= s - 1;
1472 }
1473 }
1474
1475 /* e and m now are normalised, or zero, (or inf or nan) */
1476 e += 127 - 15;
1477
1478 return s | (e << 23) | (m << (23 - 10));
1479}
1480
1481ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1482ecb_function_ ecb_const uint16_t
1483ecb_binary32_to_binary16 (uint32_t x)
1484{
1485 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1486 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1487 unsigned int m = x & 0x007fffff;
1488
1489 x &= 0x7fffffff;
1490
1491 /* if it's within range of binary16 normals, use fast path */
1492 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1493 {
1494 /* mantissa round-to-even */
1495 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1496
1497 /* handle overflow */
1498 if (ecb_expect_false (m >= 0x00800000))
1499 {
1500 m >>= 1;
1501 e += 1;
1502 }
1503
1504 return s | (e << 10) | (m >> (23 - 10));
1505 }
1506
1507 /* handle large numbers and infinity */
1508 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1509 return s | 0x7c00;
1510
1511 /* handle zero, subnormals and small numbers */
1512 if (ecb_expect_true (x < 0x38800000))
1513 {
1514 /* zero */
1515 if (ecb_expect_true (!x))
1516 return s;
1517
1518 /* handle subnormals */
1519
1520 /* too small, will be zero */
1521 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1522 return s;
1523
1524 m |= 0x00800000; /* make implicit bit explicit */
1525
1526 /* very tricky - we need to round to the nearest e (+10) bit value */
1527 {
1528 unsigned int bits = 14 - e;
1529 unsigned int half = (1 << (bits - 1)) - 1;
1530 unsigned int even = (m >> bits) & 1;
1531
1532 /* if this overflows, we will end up with a normalised number */
1533 m = (m + half + even) >> bits;
1534 }
1535
1536 return s | m;
1537 }
1538
1539 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1540 m >>= 13;
1541
1542 return s | 0x7c00 | m | !m;
1543}
1158 1544
1159/*******************************************************************************/ 1545/*******************************************************************************/
1160/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1546/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1161 1547
1162/* basically, everything uses "ieee pure-endian" floating point numbers */ 1548/* basically, everything uses "ieee pure-endian" floating point numbers */
… …
1175 || defined __sh__ \ 1561 || defined __sh__ \
1176 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ 1562 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1177 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1563 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1178 || defined __aarch64__ 1564 || defined __aarch64__
1179 #define ECB_STDFP 1 1565 #define ECB_STDFP 1
1180 #include <string.h> /* for memcpy */
1181#else 1566#else
1182 #define ECB_STDFP 0 1567 #define ECB_STDFP 0
1183#endif 1568#endif
1184 1569
1185#ifndef ECB_NO_LIBM 1570#ifndef ECB_NO_LIBM
… …
1205 #else 1590 #else
1206 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) 1591 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1207 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) 1592 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1208 #endif 1593 #endif
1209 1594
1210 /* converts an ieee half/binary16 to a float */
1211 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1212 ecb_function_ ecb_const float
1213 ecb_binary16_to_float (uint16_t x)
1214 {
1215 int e = (x >> 10) & 0x1f;
1216 int m = x & 0x3ff;
1217 float r;
1218
1219 if (!e ) r = ecb_ldexpf (m , -24);
1220 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1221 else if (m ) r = ECB_NAN;
1222 else r = ECB_INFINITY;
1223
1224 return x & 0x8000 ? -r : r;
1225 }
1226
1227 /* convert a float to ieee single/binary32 */ 1595 /* convert a float to ieee single/binary32 */
1228 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); 1596 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1229 ecb_function_ ecb_const uint32_t 1597 ecb_function_ ecb_const uint32_t
1230 ecb_float_to_binary32 (float x) 1598 ecb_float_to_binary32 (float x)
1231 { 1599 {
… …
1362 #endif 1730 #endif
1363 1731
1364 return r; 1732 return r;
1365 } 1733 }
1366 1734
1735 /* convert a float to ieee half/binary16 */
1736 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1737 ecb_function_ ecb_const uint16_t
1738 ecb_float_to_binary16 (float x)
1739 {
1740 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1741 }
1742
1743 /* convert an ieee half/binary16 to float */
1744 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1745 ecb_function_ ecb_const float
1746 ecb_binary16_to_float (uint16_t x)
1747 {
1748 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1749 }
1750
1367#endif 1751#endif
1368 1752
1369#endif 1753#endif
1370 1754
1371/* ECB.H END */ 1755/* ECB.H END */
1372 1756
1373#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1757#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1374/* if your architecture doesn't need memory fences, e.g. because it is 1758/* if your architecture doesn't need memory fences, e.g. because it is
1375 * single-cpu/core, or if you use libev in a project that doesn't use libev 1759 * single-cpu/core, or if you use libev in a project that doesn't use libev
1376 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1760 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1377 * libev, in which cases the memory fences become nops. 1761 * libev, in which cases the memory fences become nops.
1378 * alternatively, you can remove this #error and link against libpthread, 1762 * alternatively, you can remove this #error and link against libpthread,
1379 * which will then provide the memory fences. 1763 * which will then provide the memory fences.
1380 */ 1764 */
1381# error "memory fences not defined for your architecture, please report" 1765# error "memory fences not defined for your architecture, please report"
… …
1385# define ECB_MEMORY_FENCE do { } while (0) 1769# define ECB_MEMORY_FENCE do { } while (0)
1386# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1770# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1387# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1771# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1388#endif 1772#endif
1389 1773
1390#define expect_false(cond) ecb_expect_false (cond)
1391#define expect_true(cond) ecb_expect_true (cond)
1392#define noinline ecb_noinline
1393
1394#define inline_size ecb_inline 1774#define inline_size ecb_inline
1395 1775
1396#if EV_FEATURE_CODE 1776#if EV_FEATURE_CODE
1397# define inline_speed ecb_inline 1777# define inline_speed ecb_inline
1398#else 1778#else
1399# define inline_speed static noinline 1779# define inline_speed ecb_noinline static
1400#endif 1780#endif
1781
1782/*****************************************************************************/
1783/* raw syscall wrappers */
1784
1785#if EV_NEED_SYSCALL
1786
1787#include <sys/syscall.h>
1788
1789/*
1790 * define some syscall wrappers for common architectures
1791 * this is mostly for nice looks during debugging, not performance.
1792 * our syscalls return < 0, not == -1, on error. which is good
1793 * enough for linux aio.
1794 * TODO: arm is also common nowadays, maybe even mips and x86
1795 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1796 */
1797#if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE
1798 /* the costly errno access probably kills this for size optimisation */
1799
1800 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1801 ({ \
1802 long res; \
1803 register unsigned long r6 __asm__ ("r9" ); \
1804 register unsigned long r5 __asm__ ("r8" ); \
1805 register unsigned long r4 __asm__ ("r10"); \
1806 register unsigned long r3 __asm__ ("rdx"); \
1807 register unsigned long r2 __asm__ ("rsi"); \
1808 register unsigned long r1 __asm__ ("rdi"); \
1809 if (narg >= 6) r6 = (unsigned long)(arg6); \
1810 if (narg >= 5) r5 = (unsigned long)(arg5); \
1811 if (narg >= 4) r4 = (unsigned long)(arg4); \
1812 if (narg >= 3) r3 = (unsigned long)(arg3); \
1813 if (narg >= 2) r2 = (unsigned long)(arg2); \
1814 if (narg >= 1) r1 = (unsigned long)(arg1); \
1815 __asm__ __volatile__ ( \
1816 "syscall\n\t" \
1817 : "=a" (res) \
1818 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1819 : "cc", "r11", "cx", "memory"); \
1820 errno = -res; \
1821 res; \
1822 })
1823
1824#endif
1825
1826#ifdef ev_syscall
1827 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1828 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1829 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1830 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1831 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1832 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1833 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1834#else
1835 #define ev_syscall0(nr) syscall (nr)
1836 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1837 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1838 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1839 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1840 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1841 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1842#endif
1843
1844#endif
1845
1846/*****************************************************************************/
1401 1847
1402#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1848#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1403 1849
1404#if EV_MINPRI == EV_MAXPRI 1850#if EV_MINPRI == EV_MAXPRI
1405# define ABSPRI(w) (((W)w), 0) 1851# define ABSPRI(w) (((W)w), 0)
1406#else 1852#else
1407# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1853# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1408#endif 1854#endif
1409 1855
1410#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1856#define EMPTY /* required for microsofts broken pseudo-c compiler */
1411#define EMPTY2(a,b) /* used to suppress some warnings */
1412 1857
1413typedef ev_watcher *W; 1858typedef ev_watcher *W;
1414typedef ev_watcher_list *WL; 1859typedef ev_watcher_list *WL;
1415typedef ev_watcher_time *WT; 1860typedef ev_watcher_time *WT;
1416 1861
… …
1441# include "ev_win32.c" 1886# include "ev_win32.c"
1442#endif 1887#endif
1443 1888
1444/*****************************************************************************/ 1889/*****************************************************************************/
1445 1890
1891#if EV_USE_LINUXAIO
1892# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1893#endif
1894
1446/* define a suitable floor function (only used by periodics atm) */ 1895/* define a suitable floor function (only used by periodics atm) */
1447 1896
1448#if EV_USE_FLOOR 1897#if EV_USE_FLOOR
1449# include <math.h> 1898# include <math.h>
1450# define ev_floor(v) floor (v) 1899# define ev_floor(v) floor (v)
1451#else 1900#else
1452 1901
1453#include <float.h> 1902#include <float.h>
1454 1903
1455/* a floor() replacement function, should be independent of ev_tstamp type */ 1904/* a floor() replacement function, should be independent of ev_tstamp type */
1905ecb_noinline
1456static ev_tstamp noinline 1906static ev_tstamp
1457ev_floor (ev_tstamp v) 1907ev_floor (ev_tstamp v)
1458{ 1908{
1459 /* the choice of shift factor is not terribly important */ 1909 /* the choice of shift factor is not terribly important */
1460#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1910#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1461 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1911 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1462#else 1912#else
1463 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1913 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1464#endif 1914#endif
1465 1915
1916 /* special treatment for negative arguments */
1917 if (ecb_expect_false (v < 0.))
1918 {
1919 ev_tstamp f = -ev_floor (-v);
1920
1921 return f - (f == v ? 0 : 1);
1922 }
1923
1466 /* argument too large for an unsigned long? */ 1924 /* argument too large for an unsigned long? then reduce it */
1467 if (expect_false (v >= shift)) 1925 if (ecb_expect_false (v >= shift))
1468 { 1926 {
1469 ev_tstamp f; 1927 ev_tstamp f;
1470 1928
1471 if (v == v - 1.) 1929 if (v == v - 1.)
1472 return v; /* very large number */ 1930 return v; /* very large numbers are assumed to be integer */
1473 1931
1474 f = shift * ev_floor (v * (1. / shift)); 1932 f = shift * ev_floor (v * (1. / shift));
1475 return f + ev_floor (v - f); 1933 return f + ev_floor (v - f);
1476 } 1934 }
1477 1935
1478 /* special treatment for negative args? */
1479 if (expect_false (v < 0.))
1480 {
1481 ev_tstamp f = -ev_floor (-v);
1482
1483 return f - (f == v ? 0 : 1);
1484 }
1485
1486 /* fits into an unsigned long */ 1936 /* fits into an unsigned long */
1487 return (unsigned long)v; 1937 return (unsigned long)v;
1488} 1938}
1489 1939
1490#endif 1940#endif
… …
1493 1943
1494#ifdef __linux 1944#ifdef __linux
1495# include <sys/utsname.h> 1945# include <sys/utsname.h>
1496#endif 1946#endif
1497 1947
1498static unsigned int noinline ecb_cold 1948ecb_noinline ecb_cold
1949static unsigned int
1499ev_linux_version (void) 1950ev_linux_version (void)
1500{ 1951{
1501#ifdef __linux 1952#ifdef __linux
1502 unsigned int v = 0; 1953 unsigned int v = 0;
1503 struct utsname buf; 1954 struct utsname buf;
… …
1532} 1983}
1533 1984
1534/*****************************************************************************/ 1985/*****************************************************************************/
1535 1986
1536#if EV_AVOID_STDIO 1987#if EV_AVOID_STDIO
1537static void noinline ecb_cold 1988ecb_noinline ecb_cold
1989static void
1538ev_printerr (const char *msg) 1990ev_printerr (const char *msg)
1539{ 1991{
1540 write (STDERR_FILENO, msg, strlen (msg)); 1992 write (STDERR_FILENO, msg, strlen (msg));
1541} 1993}
1542#endif 1994#endif
1543 1995
1544static void (*syserr_cb)(const char *msg) EV_THROW; 1996static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1545 1997
1546void ecb_cold 1998ecb_cold
1999void
1547ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 2000ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1548{ 2001{
1549 syserr_cb = cb; 2002 syserr_cb = cb;
1550} 2003}
1551 2004
1552static void noinline ecb_cold 2005ecb_noinline ecb_cold
2006static void
1553ev_syserr (const char *msg) 2007ev_syserr (const char *msg)
1554{ 2008{
1555 if (!msg) 2009 if (!msg)
1556 msg = "(libev) system error"; 2010 msg = "(libev) system error";
1557 2011
… …
1570 abort (); 2024 abort ();
1571 } 2025 }
1572} 2026}
1573 2027
1574static void * 2028static void *
1575ev_realloc_emul (void *ptr, long size) EV_THROW 2029ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1576{ 2030{
1577 /* some systems, notably openbsd and darwin, fail to properly 2031 /* some systems, notably openbsd and darwin, fail to properly
1578 * implement realloc (x, 0) (as required by both ansi c-89 and 2032 * implement realloc (x, 0) (as required by both ansi c-89 and
1579 * the single unix specification, so work around them here. 2033 * the single unix specification, so work around them here.
1580 * recently, also (at least) fedora and debian started breaking it, 2034 * recently, also (at least) fedora and debian started breaking it,
… …
1586 2040
1587 free (ptr); 2041 free (ptr);
1588 return 0; 2042 return 0;
1589} 2043}
1590 2044
1591static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 2045static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1592 2046
1593void ecb_cold 2047ecb_cold
2048void
1594ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 2049ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1595{ 2050{
1596 alloc = cb; 2051 alloc = cb;
1597} 2052}
1598 2053
1599inline_speed void * 2054inline_speed void *
… …
1626typedef struct 2081typedef struct
1627{ 2082{
1628 WL head; 2083 WL head;
1629 unsigned char events; /* the events watched for */ 2084 unsigned char events; /* the events watched for */
1630 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 2085 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1631 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 2086 unsigned char emask; /* some backends store the actual kernel mask in here */
1632 unsigned char unused; 2087 unsigned char eflags; /* flags field for use by backends */
1633#if EV_USE_EPOLL 2088#if EV_USE_EPOLL
1634 unsigned int egen; /* generation counter to counter epoll bugs */ 2089 unsigned int egen; /* generation counter to counter epoll bugs */
1635#endif 2090#endif
1636#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2091#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1637 SOCKET handle; 2092 SOCKET handle;
… …
1691 static struct ev_loop default_loop_struct; 2146 static struct ev_loop default_loop_struct;
1692 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 2147 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1693 2148
1694#else 2149#else
1695 2150
1696 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 2151 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1697 #define VAR(name,decl) static decl; 2152 #define VAR(name,decl) static decl;
1698 #include "ev_vars.h" 2153 #include "ev_vars.h"
1699 #undef VAR 2154 #undef VAR
1700 2155
1701 static int ev_default_loop_ptr; 2156 static int ev_default_loop_ptr;
1702 2157
1703#endif 2158#endif
1704 2159
1705#if EV_FEATURE_API 2160#if EV_FEATURE_API
1706# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2161# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1707# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2162# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1708# define EV_INVOKE_PENDING invoke_cb (EV_A) 2163# define EV_INVOKE_PENDING invoke_cb (EV_A)
1709#else 2164#else
1710# define EV_RELEASE_CB (void)0 2165# define EV_RELEASE_CB (void)0
1711# define EV_ACQUIRE_CB (void)0 2166# define EV_ACQUIRE_CB (void)0
1712# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2167# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1716 2171
1717/*****************************************************************************/ 2172/*****************************************************************************/
1718 2173
1719#ifndef EV_HAVE_EV_TIME 2174#ifndef EV_HAVE_EV_TIME
1720ev_tstamp 2175ev_tstamp
1721ev_time (void) EV_THROW 2176ev_time (void) EV_NOEXCEPT
1722{ 2177{
1723#if EV_USE_REALTIME 2178#if EV_USE_REALTIME
1724 if (expect_true (have_realtime)) 2179 if (ecb_expect_true (have_realtime))
1725 { 2180 {
1726 struct timespec ts; 2181 struct timespec ts;
1727 clock_gettime (CLOCK_REALTIME, &ts); 2182 clock_gettime (CLOCK_REALTIME, &ts);
1728 return ts.tv_sec + ts.tv_nsec * 1e-9; 2183 return EV_TS_GET (ts);
1729 } 2184 }
1730#endif 2185#endif
1731 2186
2187 {
1732 struct timeval tv; 2188 struct timeval tv;
1733 gettimeofday (&tv, 0); 2189 gettimeofday (&tv, 0);
1734 return tv.tv_sec + tv.tv_usec * 1e-6; 2190 return EV_TV_GET (tv);
2191 }
1735} 2192}
1736#endif 2193#endif
1737 2194
1738inline_size ev_tstamp 2195inline_size ev_tstamp
1739get_clock (void) 2196get_clock (void)
1740{ 2197{
1741#if EV_USE_MONOTONIC 2198#if EV_USE_MONOTONIC
1742 if (expect_true (have_monotonic)) 2199 if (ecb_expect_true (have_monotonic))
1743 { 2200 {
1744 struct timespec ts; 2201 struct timespec ts;
1745 clock_gettime (CLOCK_MONOTONIC, &ts); 2202 clock_gettime (CLOCK_MONOTONIC, &ts);
1746 return ts.tv_sec + ts.tv_nsec * 1e-9; 2203 return EV_TS_GET (ts);
1747 } 2204 }
1748#endif 2205#endif
1749 2206
1750 return ev_time (); 2207 return ev_time ();
1751} 2208}
1752 2209
1753#if EV_MULTIPLICITY 2210#if EV_MULTIPLICITY
1754ev_tstamp 2211ev_tstamp
1755ev_now (EV_P) EV_THROW 2212ev_now (EV_P) EV_NOEXCEPT
1756{ 2213{
1757 return ev_rt_now; 2214 return ev_rt_now;
1758} 2215}
1759#endif 2216#endif
1760 2217
1761void 2218void
1762ev_sleep (ev_tstamp delay) EV_THROW 2219ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1763{ 2220{
1764 if (delay > 0.) 2221 if (delay > EV_TS_CONST (0.))
1765 { 2222 {
1766#if EV_USE_NANOSLEEP 2223#if EV_USE_NANOSLEEP
1767 struct timespec ts; 2224 struct timespec ts;
1768 2225
1769 EV_TS_SET (ts, delay); 2226 EV_TS_SET (ts, delay);
1770 nanosleep (&ts, 0); 2227 nanosleep (&ts, 0);
1771#elif defined _WIN32 2228#elif defined _WIN32
2229 /* maybe this should round up, as ms is very low resolution */
2230 /* compared to select (µs) or nanosleep (ns) */
1772 Sleep ((unsigned long)(delay * 1e3)); 2231 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1773#else 2232#else
1774 struct timeval tv; 2233 struct timeval tv;
1775 2234
1776 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2235 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1777 /* something not guaranteed by newer posix versions, but guaranteed */ 2236 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1807 } 2266 }
1808 2267
1809 return ncur; 2268 return ncur;
1810} 2269}
1811 2270
1812static void * noinline ecb_cold 2271ecb_noinline ecb_cold
2272static void *
1813array_realloc (int elem, void *base, int *cur, int cnt) 2273array_realloc (int elem, void *base, int *cur, int cnt)
1814{ 2274{
1815 *cur = array_nextsize (elem, *cur, cnt); 2275 *cur = array_nextsize (elem, *cur, cnt);
1816 return ev_realloc (base, elem * *cur); 2276 return ev_realloc (base, elem * *cur);
1817} 2277}
1818 2278
2279#define array_needsize_noinit(base,offset,count)
2280
1819#define array_init_zero(base,count) \ 2281#define array_needsize_zerofill(base,offset,count) \
1820 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2282 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1821 2283
1822#define array_needsize(type,base,cur,cnt,init) \ 2284#define array_needsize(type,base,cur,cnt,init) \
1823 if (expect_false ((cnt) > (cur))) \ 2285 if (ecb_expect_false ((cnt) > (cur))) \
1824 { \ 2286 { \
1825 int ecb_unused ocur_ = (cur); \ 2287 ecb_unused int ocur_ = (cur); \
1826 (base) = (type *)array_realloc \ 2288 (base) = (type *)array_realloc \
1827 (sizeof (type), (base), &(cur), (cnt)); \ 2289 (sizeof (type), (base), &(cur), (cnt)); \
1828 init ((base) + (ocur_), (cur) - ocur_); \ 2290 init ((base), ocur_, ((cur) - ocur_)); \
1829 } 2291 }
1830 2292
1831#if 0 2293#if 0
1832#define array_slim(type,stem) \ 2294#define array_slim(type,stem) \
1833 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2295 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1842 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2304 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1843 2305
1844/*****************************************************************************/ 2306/*****************************************************************************/
1845 2307
1846/* dummy callback for pending events */ 2308/* dummy callback for pending events */
1847static void noinline 2309ecb_noinline
2310static void
1848pendingcb (EV_P_ ev_prepare *w, int revents) 2311pendingcb (EV_P_ ev_prepare *w, int revents)
1849{ 2312{
1850} 2313}
1851 2314
1852void noinline 2315ecb_noinline
2316void
1853ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2317ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1854{ 2318{
1855 W w_ = (W)w; 2319 W w_ = (W)w;
1856 int pri = ABSPRI (w_); 2320 int pri = ABSPRI (w_);
1857 2321
1858 if (expect_false (w_->pending)) 2322 if (ecb_expect_false (w_->pending))
1859 pendings [pri][w_->pending - 1].events |= revents; 2323 pendings [pri][w_->pending - 1].events |= revents;
1860 else 2324 else
1861 { 2325 {
1862 w_->pending = ++pendingcnt [pri]; 2326 w_->pending = ++pendingcnt [pri];
1863 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2327 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1864 pendings [pri][w_->pending - 1].w = w_; 2328 pendings [pri][w_->pending - 1].w = w_;
1865 pendings [pri][w_->pending - 1].events = revents; 2329 pendings [pri][w_->pending - 1].events = revents;
1866 } 2330 }
1867 2331
1868 pendingpri = NUMPRI - 1; 2332 pendingpri = NUMPRI - 1;
1869} 2333}
1870 2334
1871inline_speed void 2335inline_speed void
1872feed_reverse (EV_P_ W w) 2336feed_reverse (EV_P_ W w)
1873{ 2337{
1874 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2338 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1875 rfeeds [rfeedcnt++] = w; 2339 rfeeds [rfeedcnt++] = w;
1876} 2340}
1877 2341
1878inline_size void 2342inline_size void
1879feed_reverse_done (EV_P_ int revents) 2343feed_reverse_done (EV_P_ int revents)
… …
1914inline_speed void 2378inline_speed void
1915fd_event (EV_P_ int fd, int revents) 2379fd_event (EV_P_ int fd, int revents)
1916{ 2380{
1917 ANFD *anfd = anfds + fd; 2381 ANFD *anfd = anfds + fd;
1918 2382
1919 if (expect_true (!anfd->reify)) 2383 if (ecb_expect_true (!anfd->reify))
1920 fd_event_nocheck (EV_A_ fd, revents); 2384 fd_event_nocheck (EV_A_ fd, revents);
1921} 2385}
1922 2386
1923void 2387void
1924ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2388ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1925{ 2389{
1926 if (fd >= 0 && fd < anfdmax) 2390 if (fd >= 0 && fd < anfdmax)
1927 fd_event_nocheck (EV_A_ fd, revents); 2391 fd_event_nocheck (EV_A_ fd, revents);
1928} 2392}
1929 2393
… …
1932inline_size void 2396inline_size void
1933fd_reify (EV_P) 2397fd_reify (EV_P)
1934{ 2398{
1935 int i; 2399 int i;
1936 2400
2401 /* most backends do not modify the fdchanges list in backend_modfiy.
2402 * except io_uring, which has fixed-size buffers which might force us
2403 * to handle events in backend_modify, causing fdchanges to be amended,
2404 * which could result in an endless loop.
2405 * to avoid this, we do not dynamically handle fds that were added
2406 * during fd_reify. that means that for those backends, fdchangecnt
2407 * might be non-zero during poll, which must cause them to not block.
2408 * to not put too much of a burden on other backends, this detail
2409 * needs to be handled in the backend.
2410 */
2411 int changecnt = fdchangecnt;
2412
1937#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2413#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1938 for (i = 0; i < fdchangecnt; ++i) 2414 for (i = 0; i < changecnt; ++i)
1939 { 2415 {
1940 int fd = fdchanges [i]; 2416 int fd = fdchanges [i];
1941 ANFD *anfd = anfds + fd; 2417 ANFD *anfd = anfds + fd;
1942 2418
1943 if (anfd->reify & EV__IOFDSET && anfd->head) 2419 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
1957 } 2433 }
1958 } 2434 }
1959 } 2435 }
1960#endif 2436#endif
1961 2437
1962 for (i = 0; i < fdchangecnt; ++i) 2438 for (i = 0; i < changecnt; ++i)
1963 { 2439 {
1964 int fd = fdchanges [i]; 2440 int fd = fdchanges [i];
1965 ANFD *anfd = anfds + fd; 2441 ANFD *anfd = anfds + fd;
1966 ev_io *w; 2442 ev_io *w;
1967 2443
1968 unsigned char o_events = anfd->events; 2444 unsigned char o_events = anfd->events;
1969 unsigned char o_reify = anfd->reify; 2445 unsigned char o_reify = anfd->reify;
1970 2446
1971 anfd->reify = 0; 2447 anfd->reify = 0;
1972 2448
1973 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2449 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1974 { 2450 {
1975 anfd->events = 0; 2451 anfd->events = 0;
1976 2452
1977 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2453 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1978 anfd->events |= (unsigned char)w->events; 2454 anfd->events |= (unsigned char)w->events;
… …
1983 2459
1984 if (o_reify & EV__IOFDSET) 2460 if (o_reify & EV__IOFDSET)
1985 backend_modify (EV_A_ fd, o_events, anfd->events); 2461 backend_modify (EV_A_ fd, o_events, anfd->events);
1986 } 2462 }
1987 2463
2464 /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added.
2465 * this is a rare case (see beginning comment in this function), so we copy them to the
2466 * front and hope the backend handles this case.
2467 */
2468 if (ecb_expect_false (fdchangecnt != changecnt))
2469 memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges));
2470
1988 fdchangecnt = 0; 2471 fdchangecnt -= changecnt;
1989} 2472}
1990 2473
1991/* something about the given fd changed */ 2474/* something about the given fd changed */
1992inline_size void 2475inline_size
2476void
1993fd_change (EV_P_ int fd, int flags) 2477fd_change (EV_P_ int fd, int flags)
1994{ 2478{
1995 unsigned char reify = anfds [fd].reify; 2479 unsigned char reify = anfds [fd].reify;
1996 anfds [fd].reify |= flags; 2480 anfds [fd].reify = reify | flags;
1997 2481
1998 if (expect_true (!reify)) 2482 if (ecb_expect_true (!reify))
1999 { 2483 {
2000 ++fdchangecnt; 2484 ++fdchangecnt;
2001 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2485 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2002 fdchanges [fdchangecnt - 1] = fd; 2486 fdchanges [fdchangecnt - 1] = fd;
2003 } 2487 }
2004} 2488}
2005 2489
2006/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2490/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
2007inline_speed void ecb_cold 2491inline_speed ecb_cold void
2008fd_kill (EV_P_ int fd) 2492fd_kill (EV_P_ int fd)
2009{ 2493{
2010 ev_io *w; 2494 ev_io *w;
2011 2495
2012 while ((w = (ev_io *)anfds [fd].head)) 2496 while ((w = (ev_io *)anfds [fd].head))
… …
2015 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2499 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
2016 } 2500 }
2017} 2501}
2018 2502
2019/* check whether the given fd is actually valid, for error recovery */ 2503/* check whether the given fd is actually valid, for error recovery */
2020inline_size int ecb_cold 2504inline_size ecb_cold int
2021fd_valid (int fd) 2505fd_valid (int fd)
2022{ 2506{
2023#ifdef _WIN32 2507#ifdef _WIN32
2024 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2508 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
2025#else 2509#else
2026 return fcntl (fd, F_GETFD) != -1; 2510 return fcntl (fd, F_GETFD) != -1;
2027#endif 2511#endif
2028} 2512}
2029 2513
2030/* called on EBADF to verify fds */ 2514/* called on EBADF to verify fds */
2031static void noinline ecb_cold 2515ecb_noinline ecb_cold
2516static void
2032fd_ebadf (EV_P) 2517fd_ebadf (EV_P)
2033{ 2518{
2034 int fd; 2519 int fd;
2035 2520
2036 for (fd = 0; fd < anfdmax; ++fd) 2521 for (fd = 0; fd < anfdmax; ++fd)
… …
2038 if (!fd_valid (fd) && errno == EBADF) 2523 if (!fd_valid (fd) && errno == EBADF)
2039 fd_kill (EV_A_ fd); 2524 fd_kill (EV_A_ fd);
2040} 2525}
2041 2526
2042/* called on ENOMEM in select/poll to kill some fds and retry */ 2527/* called on ENOMEM in select/poll to kill some fds and retry */
2043static void noinline ecb_cold 2528ecb_noinline ecb_cold
2529static void
2044fd_enomem (EV_P) 2530fd_enomem (EV_P)
2045{ 2531{
2046 int fd; 2532 int fd;
2047 2533
2048 for (fd = anfdmax; fd--; ) 2534 for (fd = anfdmax; fd--; )
… …
2052 break; 2538 break;
2053 } 2539 }
2054} 2540}
2055 2541
2056/* usually called after fork if backend needs to re-arm all fds from scratch */ 2542/* usually called after fork if backend needs to re-arm all fds from scratch */
2057static void noinline 2543ecb_noinline
2544static void
2058fd_rearm_all (EV_P) 2545fd_rearm_all (EV_P)
2059{ 2546{
2060 int fd; 2547 int fd;
2061 2548
2062 for (fd = 0; fd < anfdmax; ++fd) 2549 for (fd = 0; fd < anfdmax; ++fd)
… …
2115 ev_tstamp minat; 2602 ev_tstamp minat;
2116 ANHE *minpos; 2603 ANHE *minpos;
2117 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2604 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2118 2605
2119 /* find minimum child */ 2606 /* find minimum child */
2120 if (expect_true (pos + DHEAP - 1 < E)) 2607 if (ecb_expect_true (pos + DHEAP - 1 < E))
2121 { 2608 {
2122 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2609 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2123 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2610 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2124 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2611 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2125 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2612 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2126 } 2613 }
2127 else if (pos < E) 2614 else if (pos < E)
2128 { 2615 {
2129 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2616 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2130 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2617 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2131 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2618 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2132 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2619 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2133 } 2620 }
2134 else 2621 else
2135 break; 2622 break;
2136 2623
2137 if (ANHE_at (he) <= minat) 2624 if (ANHE_at (he) <= minat)
… …
2145 2632
2146 heap [k] = he; 2633 heap [k] = he;
2147 ev_active (ANHE_w (he)) = k; 2634 ev_active (ANHE_w (he)) = k;
2148} 2635}
2149 2636
2150#else /* 4HEAP */ 2637#else /* not 4HEAP */
2151 2638
2152#define HEAP0 1 2639#define HEAP0 1
2153#define HPARENT(k) ((k) >> 1) 2640#define HPARENT(k) ((k) >> 1)
2154#define UPHEAP_DONE(p,k) (!(p)) 2641#define UPHEAP_DONE(p,k) (!(p))
2155 2642
… …
2227 upheap (heap, i + HEAP0); 2714 upheap (heap, i + HEAP0);
2228} 2715}
2229 2716
2230/*****************************************************************************/ 2717/*****************************************************************************/
2231 2718
2232/* associate signal watchers to a signal signal */ 2719/* associate signal watchers to a signal */
2233typedef struct 2720typedef struct
2234{ 2721{
2235 EV_ATOMIC_T pending; 2722 EV_ATOMIC_T pending;
2236#if EV_MULTIPLICITY 2723#if EV_MULTIPLICITY
2237 EV_P; 2724 EV_P;
… …
2243 2730
2244/*****************************************************************************/ 2731/*****************************************************************************/
2245 2732
2246#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2733#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2247 2734
2248static void noinline ecb_cold 2735ecb_noinline ecb_cold
2736static void
2249evpipe_init (EV_P) 2737evpipe_init (EV_P)
2250{ 2738{
2251 if (!ev_is_active (&pipe_w)) 2739 if (!ev_is_active (&pipe_w))
2252 { 2740 {
2253 int fds [2]; 2741 int fds [2];
… …
2293inline_speed void 2781inline_speed void
2294evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2782evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2295{ 2783{
2296 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2784 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2297 2785
2298 if (expect_true (*flag)) 2786 if (ecb_expect_true (*flag))
2299 return; 2787 return;
2300 2788
2301 *flag = 1; 2789 *flag = 1;
2302 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2790 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2303 2791
… …
2324#endif 2812#endif
2325 { 2813 {
2326#ifdef _WIN32 2814#ifdef _WIN32
2327 WSABUF buf; 2815 WSABUF buf;
2328 DWORD sent; 2816 DWORD sent;
2329 buf.buf = &buf; 2817 buf.buf = (char *)&buf;
2330 buf.len = 1; 2818 buf.len = 1;
2331 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2819 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2332#else 2820#else
2333 write (evpipe [1], &(evpipe [1]), 1); 2821 write (evpipe [1], &(evpipe [1]), 1);
2334#endif 2822#endif
… …
2380 sig_pending = 0; 2868 sig_pending = 0;
2381 2869
2382 ECB_MEMORY_FENCE; 2870 ECB_MEMORY_FENCE;
2383 2871
2384 for (i = EV_NSIG - 1; i--; ) 2872 for (i = EV_NSIG - 1; i--; )
2385 if (expect_false (signals [i].pending)) 2873 if (ecb_expect_false (signals [i].pending))
2386 ev_feed_signal_event (EV_A_ i + 1); 2874 ev_feed_signal_event (EV_A_ i + 1);
2387 } 2875 }
2388#endif 2876#endif
2389 2877
2390#if EV_ASYNC_ENABLE 2878#if EV_ASYNC_ENABLE
… …
2406} 2894}
2407 2895
2408/*****************************************************************************/ 2896/*****************************************************************************/
2409 2897
2410void 2898void
2411ev_feed_signal (int signum) EV_THROW 2899ev_feed_signal (int signum) EV_NOEXCEPT
2412{ 2900{
2413#if EV_MULTIPLICITY 2901#if EV_MULTIPLICITY
2414 EV_P; 2902 EV_P;
2415 ECB_MEMORY_FENCE_ACQUIRE; 2903 ECB_MEMORY_FENCE_ACQUIRE;
2416 EV_A = signals [signum - 1].loop; 2904 EV_A = signals [signum - 1].loop;
… …
2431#endif 2919#endif
2432 2920
2433 ev_feed_signal (signum); 2921 ev_feed_signal (signum);
2434} 2922}
2435 2923
2436void noinline 2924ecb_noinline
2925void
2437ev_feed_signal_event (EV_P_ int signum) EV_THROW 2926ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2438{ 2927{
2439 WL w; 2928 WL w;
2440 2929
2441 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2930 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2442 return; 2931 return;
2443 2932
2444 --signum; 2933 --signum;
2445 2934
2446#if EV_MULTIPLICITY 2935#if EV_MULTIPLICITY
2447 /* it is permissible to try to feed a signal to the wrong loop */ 2936 /* it is permissible to try to feed a signal to the wrong loop */
2448 /* or, likely more useful, feeding a signal nobody is waiting for */ 2937 /* or, likely more useful, feeding a signal nobody is waiting for */
2449 2938
2450 if (expect_false (signals [signum].loop != EV_A)) 2939 if (ecb_expect_false (signals [signum].loop != EV_A))
2451 return; 2940 return;
2452#endif 2941#endif
2453 2942
2454 signals [signum].pending = 0; 2943 signals [signum].pending = 0;
2455 ECB_MEMORY_FENCE_RELEASE; 2944 ECB_MEMORY_FENCE_RELEASE;
… …
2539 3028
2540#endif 3029#endif
2541 3030
2542/*****************************************************************************/ 3031/*****************************************************************************/
2543 3032
3033#if EV_USE_TIMERFD
3034
3035static void periodics_reschedule (EV_P);
3036
3037static void
3038timerfdcb (EV_P_ ev_io *iow, int revents)
3039{
3040 struct itimerspec its = { 0 };
3041
3042 its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2;
3043 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
3044
3045 ev_rt_now = ev_time ();
3046 /* periodics_reschedule only needs ev_rt_now */
3047 /* but maybe in the future we want the full treatment. */
3048 /*
3049 now_floor = EV_TS_CONST (0.);
3050 time_update (EV_A_ EV_TSTAMP_HUGE);
3051 */
3052#if EV_PERIODIC_ENABLE
3053 periodics_reschedule (EV_A);
3054#endif
3055}
3056
3057ecb_noinline ecb_cold
3058static void
3059evtimerfd_init (EV_P)
3060{
3061 if (!ev_is_active (&timerfd_w))
3062 {
3063 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
3064
3065 if (timerfd >= 0)
3066 {
3067 fd_intern (timerfd); /* just to be sure */
3068
3069 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
3070 ev_set_priority (&timerfd_w, EV_MINPRI);
3071 ev_io_start (EV_A_ &timerfd_w);
3072 ev_unref (EV_A); /* watcher should not keep loop alive */
3073
3074 /* (re-) arm timer */
3075 timerfdcb (EV_A_ 0, 0);
3076 }
3077 }
3078}
3079
3080#endif
3081
3082/*****************************************************************************/
3083
2544#if EV_USE_IOCP 3084#if EV_USE_IOCP
2545# include "ev_iocp.c" 3085# include "ev_iocp.c"
2546#endif 3086#endif
2547#if EV_USE_PORT 3087#if EV_USE_PORT
2548# include "ev_port.c" 3088# include "ev_port.c"
… …
2551# include "ev_kqueue.c" 3091# include "ev_kqueue.c"
2552#endif 3092#endif
2553#if EV_USE_EPOLL 3093#if EV_USE_EPOLL
2554# include "ev_epoll.c" 3094# include "ev_epoll.c"
2555#endif 3095#endif
3096#if EV_USE_LINUXAIO
3097# include "ev_linuxaio.c"
3098#endif
3099#if EV_USE_IOURING
3100# include "ev_iouring.c"
3101#endif
2556#if EV_USE_POLL 3102#if EV_USE_POLL
2557# include "ev_poll.c" 3103# include "ev_poll.c"
2558#endif 3104#endif
2559#if EV_USE_SELECT 3105#if EV_USE_SELECT
2560# include "ev_select.c" 3106# include "ev_select.c"
2561#endif 3107#endif
2562 3108
2563int ecb_cold 3109ecb_cold int
2564ev_version_major (void) EV_THROW 3110ev_version_major (void) EV_NOEXCEPT
2565{ 3111{
2566 return EV_VERSION_MAJOR; 3112 return EV_VERSION_MAJOR;
2567} 3113}
2568 3114
2569int ecb_cold 3115ecb_cold int
2570ev_version_minor (void) EV_THROW 3116ev_version_minor (void) EV_NOEXCEPT
2571{ 3117{
2572 return EV_VERSION_MINOR; 3118 return EV_VERSION_MINOR;
2573} 3119}
2574 3120
2575/* return true if we are running with elevated privileges and should ignore env variables */ 3121/* return true if we are running with elevated privileges and should ignore env variables */
2576int inline_size ecb_cold 3122inline_size ecb_cold int
2577enable_secure (void) 3123enable_secure (void)
2578{ 3124{
2579#ifdef _WIN32 3125#ifdef _WIN32
2580 return 0; 3126 return 0;
2581#else 3127#else
2582 return getuid () != geteuid () 3128 return getuid () != geteuid ()
2583 || getgid () != getegid (); 3129 || getgid () != getegid ();
2584#endif 3130#endif
2585} 3131}
2586 3132
2587unsigned int ecb_cold 3133ecb_cold
3134unsigned int
2588ev_supported_backends (void) EV_THROW 3135ev_supported_backends (void) EV_NOEXCEPT
2589{ 3136{
2590 unsigned int flags = 0; 3137 unsigned int flags = 0;
2591 3138
2592 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3139 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2593 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3140 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2594 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3141 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2595 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3142 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2596 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3143 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2597 3144 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3145 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3146
2598 return flags; 3147 return flags;
2599} 3148}
2600 3149
2601unsigned int ecb_cold 3150ecb_cold
3151unsigned int
2602ev_recommended_backends (void) EV_THROW 3152ev_recommended_backends (void) EV_NOEXCEPT
2603{ 3153{
2604 unsigned int flags = ev_supported_backends (); 3154 unsigned int flags = ev_supported_backends ();
2605 3155
2606#ifndef __NetBSD__ 3156#ifndef __NetBSD__
2607 /* kqueue is borked on everything but netbsd apparently */ 3157 /* kqueue is borked on everything but netbsd apparently */
… …
2615#endif 3165#endif
2616#ifdef __FreeBSD__ 3166#ifdef __FreeBSD__
2617 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 3167 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2618#endif 3168#endif
2619 3169
3170 /* TODO: linuxaio is very experimental */
3171#if !EV_RECOMMEND_LINUXAIO
3172 flags &= ~EVBACKEND_LINUXAIO;
3173#endif
3174 /* TODO: iouring is super experimental */
3175#if !EV_RECOMMEND_IOURING
3176 flags &= ~EVBACKEND_IOURING;
3177#endif
3178
2620 return flags; 3179 return flags;
2621} 3180}
2622 3181
2623unsigned int ecb_cold 3182ecb_cold
3183unsigned int
2624ev_embeddable_backends (void) EV_THROW 3184ev_embeddable_backends (void) EV_NOEXCEPT
2625{ 3185{
2626 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3186 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2627 3187
2628 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3188 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2629 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 3189 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2630 flags &= ~EVBACKEND_EPOLL; 3190 flags &= ~EVBACKEND_EPOLL;
2631 3191
3192 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3193
2632 return flags; 3194 return flags;
2633} 3195}
2634 3196
2635unsigned int 3197unsigned int
2636ev_backend (EV_P) EV_THROW 3198ev_backend (EV_P) EV_NOEXCEPT
2637{ 3199{
2638 return backend; 3200 return backend;
2639} 3201}
2640 3202
2641#if EV_FEATURE_API 3203#if EV_FEATURE_API
2642unsigned int 3204unsigned int
2643ev_iteration (EV_P) EV_THROW 3205ev_iteration (EV_P) EV_NOEXCEPT
2644{ 3206{
2645 return loop_count; 3207 return loop_count;
2646} 3208}
2647 3209
2648unsigned int 3210unsigned int
2649ev_depth (EV_P) EV_THROW 3211ev_depth (EV_P) EV_NOEXCEPT
2650{ 3212{
2651 return loop_depth; 3213 return loop_depth;
2652} 3214}
2653 3215
2654void 3216void
2655ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3217ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2656{ 3218{
2657 io_blocktime = interval; 3219 io_blocktime = interval;
2658} 3220}
2659 3221
2660void 3222void
2661ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3223ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2662{ 3224{
2663 timeout_blocktime = interval; 3225 timeout_blocktime = interval;
2664} 3226}
2665 3227
2666void 3228void
2667ev_set_userdata (EV_P_ void *data) EV_THROW 3229ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2668{ 3230{
2669 userdata = data; 3231 userdata = data;
2670} 3232}
2671 3233
2672void * 3234void *
2673ev_userdata (EV_P) EV_THROW 3235ev_userdata (EV_P) EV_NOEXCEPT
2674{ 3236{
2675 return userdata; 3237 return userdata;
2676} 3238}
2677 3239
2678void 3240void
2679ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3241ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2680{ 3242{
2681 invoke_cb = invoke_pending_cb; 3243 invoke_cb = invoke_pending_cb;
2682} 3244}
2683 3245
2684void 3246void
2685ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3247ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2686{ 3248{
2687 release_cb = release; 3249 release_cb = release;
2688 acquire_cb = acquire; 3250 acquire_cb = acquire;
2689} 3251}
2690#endif 3252#endif
2691 3253
2692/* initialise a loop structure, must be zero-initialised */ 3254/* initialise a loop structure, must be zero-initialised */
2693static void noinline ecb_cold 3255ecb_noinline ecb_cold
3256static void
2694loop_init (EV_P_ unsigned int flags) EV_THROW 3257loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2695{ 3258{
2696 if (!backend) 3259 if (!backend)
2697 { 3260 {
2698 origflags = flags; 3261 origflags = flags;
2699 3262
… …
2752 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3315 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2753#endif 3316#endif
2754#if EV_USE_SIGNALFD 3317#if EV_USE_SIGNALFD
2755 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3318 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2756#endif 3319#endif
3320#if EV_USE_TIMERFD
3321 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3322#endif
2757 3323
2758 if (!(flags & EVBACKEND_MASK)) 3324 if (!(flags & EVBACKEND_MASK))
2759 flags |= ev_recommended_backends (); 3325 flags |= ev_recommended_backends ();
2760 3326
2761#if EV_USE_IOCP 3327#if EV_USE_IOCP
2762 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3328 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2763#endif 3329#endif
2764#if EV_USE_PORT 3330#if EV_USE_PORT
2765 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3331 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2766#endif 3332#endif
2767#if EV_USE_KQUEUE 3333#if EV_USE_KQUEUE
2768 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3334 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3335#endif
3336#if EV_USE_IOURING
3337 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3338#endif
3339#if EV_USE_LINUXAIO
3340 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2769#endif 3341#endif
2770#if EV_USE_EPOLL 3342#if EV_USE_EPOLL
2771 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3343 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2772#endif 3344#endif
2773#if EV_USE_POLL 3345#if EV_USE_POLL
2774 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3346 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2775#endif 3347#endif
2776#if EV_USE_SELECT 3348#if EV_USE_SELECT
2777 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3349 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2778#endif 3350#endif
2779 3351
2780 ev_prepare_init (&pending_w, pendingcb); 3352 ev_prepare_init (&pending_w, pendingcb);
2781 3353
2782#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3354#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2785#endif 3357#endif
2786 } 3358 }
2787} 3359}
2788 3360
2789/* free up a loop structure */ 3361/* free up a loop structure */
2790void ecb_cold 3362ecb_cold
3363void
2791ev_loop_destroy (EV_P) 3364ev_loop_destroy (EV_P)
2792{ 3365{
2793 int i; 3366 int i;
2794 3367
2795#if EV_MULTIPLICITY 3368#if EV_MULTIPLICITY
… …
2798 return; 3371 return;
2799#endif 3372#endif
2800 3373
2801#if EV_CLEANUP_ENABLE 3374#if EV_CLEANUP_ENABLE
2802 /* queue cleanup watchers (and execute them) */ 3375 /* queue cleanup watchers (and execute them) */
2803 if (expect_false (cleanupcnt)) 3376 if (ecb_expect_false (cleanupcnt))
2804 { 3377 {
2805 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3378 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2806 EV_INVOKE_PENDING; 3379 EV_INVOKE_PENDING;
2807 } 3380 }
2808#endif 3381#endif
… …
2827#if EV_USE_SIGNALFD 3400#if EV_USE_SIGNALFD
2828 if (ev_is_active (&sigfd_w)) 3401 if (ev_is_active (&sigfd_w))
2829 close (sigfd); 3402 close (sigfd);
2830#endif 3403#endif
2831 3404
3405#if EV_USE_TIMERFD
3406 if (ev_is_active (&timerfd_w))
3407 close (timerfd);
3408#endif
3409
2832#if EV_USE_INOTIFY 3410#if EV_USE_INOTIFY
2833 if (fs_fd >= 0) 3411 if (fs_fd >= 0)
2834 close (fs_fd); 3412 close (fs_fd);
2835#endif 3413#endif
2836 3414
2837 if (backend_fd >= 0) 3415 if (backend_fd >= 0)
2838 close (backend_fd); 3416 close (backend_fd);
2839 3417
2840#if EV_USE_IOCP 3418#if EV_USE_IOCP
2841 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3419 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2842#endif 3420#endif
2843#if EV_USE_PORT 3421#if EV_USE_PORT
2844 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3422 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2845#endif 3423#endif
2846#if EV_USE_KQUEUE 3424#if EV_USE_KQUEUE
2847 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3425 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3426#endif
3427#if EV_USE_IOURING
3428 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3429#endif
3430#if EV_USE_LINUXAIO
3431 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2848#endif 3432#endif
2849#if EV_USE_EPOLL 3433#if EV_USE_EPOLL
2850 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3434 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2851#endif 3435#endif
2852#if EV_USE_POLL 3436#if EV_USE_POLL
2853 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3437 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2854#endif 3438#endif
2855#if EV_USE_SELECT 3439#if EV_USE_SELECT
2856 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3440 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2857#endif 3441#endif
2858 3442
2859 for (i = NUMPRI; i--; ) 3443 for (i = NUMPRI; i--; )
2860 { 3444 {
2861 array_free (pending, [i]); 3445 array_free (pending, [i]);
… …
2903 3487
2904inline_size void 3488inline_size void
2905loop_fork (EV_P) 3489loop_fork (EV_P)
2906{ 3490{
2907#if EV_USE_PORT 3491#if EV_USE_PORT
2908 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3492 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2909#endif 3493#endif
2910#if EV_USE_KQUEUE 3494#if EV_USE_KQUEUE
2911 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3495 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3496#endif
3497#if EV_USE_IOURING
3498 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3499#endif
3500#if EV_USE_LINUXAIO
3501 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2912#endif 3502#endif
2913#if EV_USE_EPOLL 3503#if EV_USE_EPOLL
2914 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3504 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2915#endif 3505#endif
2916#if EV_USE_INOTIFY 3506#if EV_USE_INOTIFY
2917 infy_fork (EV_A); 3507 infy_fork (EV_A);
2918#endif 3508#endif
2919 3509
3510 if (postfork != 2)
3511 {
3512 #if EV_USE_SIGNALFD
3513 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3514 #endif
3515
3516 #if EV_USE_TIMERFD
3517 if (ev_is_active (&timerfd_w))
3518 {
3519 ev_ref (EV_A);
3520 ev_io_stop (EV_A_ &timerfd_w);
3521
3522 close (timerfd);
3523 timerfd = -2;
3524
3525 evtimerfd_init (EV_A);
3526 /* reschedule periodics, in case we missed something */
3527 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3528 }
3529 #endif
3530
2920#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3531 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2921 if (ev_is_active (&pipe_w) && postfork != 2) 3532 if (ev_is_active (&pipe_w))
2922 { 3533 {
2923 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3534 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2924 3535
2925 ev_ref (EV_A); 3536 ev_ref (EV_A);
2926 ev_io_stop (EV_A_ &pipe_w); 3537 ev_io_stop (EV_A_ &pipe_w);
2927 3538
2928 if (evpipe [0] >= 0) 3539 if (evpipe [0] >= 0)
2929 EV_WIN32_CLOSE_FD (evpipe [0]); 3540 EV_WIN32_CLOSE_FD (evpipe [0]);
2930 3541
2931 evpipe_init (EV_A); 3542 evpipe_init (EV_A);
2932 /* iterate over everything, in case we missed something before */ 3543 /* iterate over everything, in case we missed something before */
2933 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3544 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3545 }
3546 #endif
2934 } 3547 }
2935#endif
2936 3548
2937 postfork = 0; 3549 postfork = 0;
2938} 3550}
2939 3551
2940#if EV_MULTIPLICITY 3552#if EV_MULTIPLICITY
2941 3553
3554ecb_cold
2942struct ev_loop * ecb_cold 3555struct ev_loop *
2943ev_loop_new (unsigned int flags) EV_THROW 3556ev_loop_new (unsigned int flags) EV_NOEXCEPT
2944{ 3557{
2945 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3558 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2946 3559
2947 memset (EV_A, 0, sizeof (struct ev_loop)); 3560 memset (EV_A, 0, sizeof (struct ev_loop));
2948 loop_init (EV_A_ flags); 3561 loop_init (EV_A_ flags);
… …
2955} 3568}
2956 3569
2957#endif /* multiplicity */ 3570#endif /* multiplicity */
2958 3571
2959#if EV_VERIFY 3572#if EV_VERIFY
2960static void noinline ecb_cold 3573ecb_noinline ecb_cold
3574static void
2961verify_watcher (EV_P_ W w) 3575verify_watcher (EV_P_ W w)
2962{ 3576{
2963 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3577 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2964 3578
2965 if (w->pending) 3579 if (w->pending)
2966 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3580 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2967} 3581}
2968 3582
2969static void noinline ecb_cold 3583ecb_noinline ecb_cold
3584static void
2970verify_heap (EV_P_ ANHE *heap, int N) 3585verify_heap (EV_P_ ANHE *heap, int N)
2971{ 3586{
2972 int i; 3587 int i;
2973 3588
2974 for (i = HEAP0; i < N + HEAP0; ++i) 3589 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2979 3594
2980 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3595 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2981 } 3596 }
2982} 3597}
2983 3598
2984static void noinline ecb_cold 3599ecb_noinline ecb_cold
3600static void
2985array_verify (EV_P_ W *ws, int cnt) 3601array_verify (EV_P_ W *ws, int cnt)
2986{ 3602{
2987 while (cnt--) 3603 while (cnt--)
2988 { 3604 {
2989 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3605 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2992} 3608}
2993#endif 3609#endif
2994 3610
2995#if EV_FEATURE_API 3611#if EV_FEATURE_API
2996void ecb_cold 3612void ecb_cold
2997ev_verify (EV_P) EV_THROW 3613ev_verify (EV_P) EV_NOEXCEPT
2998{ 3614{
2999#if EV_VERIFY 3615#if EV_VERIFY
3000 int i; 3616 int i;
3001 WL w, w2; 3617 WL w, w2;
3002 3618
… …
3078#endif 3694#endif
3079} 3695}
3080#endif 3696#endif
3081 3697
3082#if EV_MULTIPLICITY 3698#if EV_MULTIPLICITY
3699ecb_cold
3083struct ev_loop * ecb_cold 3700struct ev_loop *
3084#else 3701#else
3085int 3702int
3086#endif 3703#endif
3087ev_default_loop (unsigned int flags) EV_THROW 3704ev_default_loop (unsigned int flags) EV_NOEXCEPT
3088{ 3705{
3089 if (!ev_default_loop_ptr) 3706 if (!ev_default_loop_ptr)
3090 { 3707 {
3091#if EV_MULTIPLICITY 3708#if EV_MULTIPLICITY
3092 EV_P = ev_default_loop_ptr = &default_loop_struct; 3709 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3111 3728
3112 return ev_default_loop_ptr; 3729 return ev_default_loop_ptr;
3113} 3730}
3114 3731
3115void 3732void
3116ev_loop_fork (EV_P) EV_THROW 3733ev_loop_fork (EV_P) EV_NOEXCEPT
3117{ 3734{
3118 postfork = 1; 3735 postfork = 1;
3119} 3736}
3120 3737
3121/*****************************************************************************/ 3738/*****************************************************************************/
… …
3125{ 3742{
3126 EV_CB_INVOKE ((W)w, revents); 3743 EV_CB_INVOKE ((W)w, revents);
3127} 3744}
3128 3745
3129unsigned int 3746unsigned int
3130ev_pending_count (EV_P) EV_THROW 3747ev_pending_count (EV_P) EV_NOEXCEPT
3131{ 3748{
3132 int pri; 3749 int pri;
3133 unsigned int count = 0; 3750 unsigned int count = 0;
3134 3751
3135 for (pri = NUMPRI; pri--; ) 3752 for (pri = NUMPRI; pri--; )
3136 count += pendingcnt [pri]; 3753 count += pendingcnt [pri];
3137 3754
3138 return count; 3755 return count;
3139} 3756}
3140 3757
3141void noinline 3758ecb_noinline
3759void
3142ev_invoke_pending (EV_P) 3760ev_invoke_pending (EV_P)
3143{ 3761{
3144 pendingpri = NUMPRI; 3762 pendingpri = NUMPRI;
3145 3763
3146 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3764 do
3147 { 3765 {
3148 --pendingpri; 3766 --pendingpri;
3149 3767
3768 /* pendingpri possibly gets modified in the inner loop */
3150 while (pendingcnt [pendingpri]) 3769 while (pendingcnt [pendingpri])
3151 { 3770 {
3152 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3771 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3153 3772
3154 p->w->pending = 0; 3773 p->w->pending = 0;
3155 EV_CB_INVOKE (p->w, p->events); 3774 EV_CB_INVOKE (p->w, p->events);
3156 EV_FREQUENT_CHECK; 3775 EV_FREQUENT_CHECK;
3157 } 3776 }
3158 } 3777 }
3778 while (pendingpri);
3159} 3779}
3160 3780
3161#if EV_IDLE_ENABLE 3781#if EV_IDLE_ENABLE
3162/* make idle watchers pending. this handles the "call-idle */ 3782/* make idle watchers pending. this handles the "call-idle */
3163/* only when higher priorities are idle" logic */ 3783/* only when higher priorities are idle" logic */
3164inline_size void 3784inline_size void
3165idle_reify (EV_P) 3785idle_reify (EV_P)
3166{ 3786{
3167 if (expect_false (idleall)) 3787 if (ecb_expect_false (idleall))
3168 { 3788 {
3169 int pri; 3789 int pri;
3170 3790
3171 for (pri = NUMPRI; pri--; ) 3791 for (pri = NUMPRI; pri--; )
3172 { 3792 {
… …
3202 { 3822 {
3203 ev_at (w) += w->repeat; 3823 ev_at (w) += w->repeat;
3204 if (ev_at (w) < mn_now) 3824 if (ev_at (w) < mn_now)
3205 ev_at (w) = mn_now; 3825 ev_at (w) = mn_now;
3206 3826
3207 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3827 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3208 3828
3209 ANHE_at_cache (timers [HEAP0]); 3829 ANHE_at_cache (timers [HEAP0]);
3210 downheap (timers, timercnt, HEAP0); 3830 downheap (timers, timercnt, HEAP0);
3211 } 3831 }
3212 else 3832 else
… …
3221 } 3841 }
3222} 3842}
3223 3843
3224#if EV_PERIODIC_ENABLE 3844#if EV_PERIODIC_ENABLE
3225 3845
3226static void noinline 3846ecb_noinline
3847static void
3227periodic_recalc (EV_P_ ev_periodic *w) 3848periodic_recalc (EV_P_ ev_periodic *w)
3228{ 3849{
3229 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3850 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3230 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3851 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3231 3852
… …
3233 while (at <= ev_rt_now) 3854 while (at <= ev_rt_now)
3234 { 3855 {
3235 ev_tstamp nat = at + w->interval; 3856 ev_tstamp nat = at + w->interval;
3236 3857
3237 /* when resolution fails us, we use ev_rt_now */ 3858 /* when resolution fails us, we use ev_rt_now */
3238 if (expect_false (nat == at)) 3859 if (ecb_expect_false (nat == at))
3239 { 3860 {
3240 at = ev_rt_now; 3861 at = ev_rt_now;
3241 break; 3862 break;
3242 } 3863 }
3243 3864
… …
3289 } 3910 }
3290} 3911}
3291 3912
3292/* simply recalculate all periodics */ 3913/* simply recalculate all periodics */
3293/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3914/* TODO: maybe ensure that at least one event happens when jumping forward? */
3294static void noinline ecb_cold 3915ecb_noinline ecb_cold
3916static void
3295periodics_reschedule (EV_P) 3917periodics_reschedule (EV_P)
3296{ 3918{
3297 int i; 3919 int i;
3298 3920
3299 /* adjust periodics after time jump */ 3921 /* adjust periodics after time jump */
… …
3312 reheap (periodics, periodiccnt); 3934 reheap (periodics, periodiccnt);
3313} 3935}
3314#endif 3936#endif
3315 3937
3316/* adjust all timers by a given offset */ 3938/* adjust all timers by a given offset */
3317static void noinline ecb_cold 3939ecb_noinline ecb_cold
3940static void
3318timers_reschedule (EV_P_ ev_tstamp adjust) 3941timers_reschedule (EV_P_ ev_tstamp adjust)
3319{ 3942{
3320 int i; 3943 int i;
3321 3944
3322 for (i = 0; i < timercnt; ++i) 3945 for (i = 0; i < timercnt; ++i)
… …
3331/* also detect if there was a timejump, and act accordingly */ 3954/* also detect if there was a timejump, and act accordingly */
3332inline_speed void 3955inline_speed void
3333time_update (EV_P_ ev_tstamp max_block) 3956time_update (EV_P_ ev_tstamp max_block)
3334{ 3957{
3335#if EV_USE_MONOTONIC 3958#if EV_USE_MONOTONIC
3336 if (expect_true (have_monotonic)) 3959 if (ecb_expect_true (have_monotonic))
3337 { 3960 {
3338 int i; 3961 int i;
3339 ev_tstamp odiff = rtmn_diff; 3962 ev_tstamp odiff = rtmn_diff;
3340 3963
3341 mn_now = get_clock (); 3964 mn_now = get_clock ();
3342 3965
3343 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3966 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3344 /* interpolate in the meantime */ 3967 /* interpolate in the meantime */
3345 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3968 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3346 { 3969 {
3347 ev_rt_now = rtmn_diff + mn_now; 3970 ev_rt_now = rtmn_diff + mn_now;
3348 return; 3971 return;
3349 } 3972 }
3350 3973
… …
3364 ev_tstamp diff; 3987 ev_tstamp diff;
3365 rtmn_diff = ev_rt_now - mn_now; 3988 rtmn_diff = ev_rt_now - mn_now;
3366 3989
3367 diff = odiff - rtmn_diff; 3990 diff = odiff - rtmn_diff;
3368 3991
3369 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3992 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3370 return; /* all is well */ 3993 return; /* all is well */
3371 3994
3372 ev_rt_now = ev_time (); 3995 ev_rt_now = ev_time ();
3373 mn_now = get_clock (); 3996 mn_now = get_clock ();
3374 now_floor = mn_now; 3997 now_floor = mn_now;
… …
3383 else 4006 else
3384#endif 4007#endif
3385 { 4008 {
3386 ev_rt_now = ev_time (); 4009 ev_rt_now = ev_time ();
3387 4010
3388 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 4011 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3389 { 4012 {
3390 /* adjust timers. this is easy, as the offset is the same for all of them */ 4013 /* adjust timers. this is easy, as the offset is the same for all of them */
3391 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4014 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3392#if EV_PERIODIC_ENABLE 4015#if EV_PERIODIC_ENABLE
3393 periodics_reschedule (EV_A); 4016 periodics_reschedule (EV_A);
… …
3416#if EV_VERIFY >= 2 4039#if EV_VERIFY >= 2
3417 ev_verify (EV_A); 4040 ev_verify (EV_A);
3418#endif 4041#endif
3419 4042
3420#ifndef _WIN32 4043#ifndef _WIN32
3421 if (expect_false (curpid)) /* penalise the forking check even more */ 4044 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3422 if (expect_false (getpid () != curpid)) 4045 if (ecb_expect_false (getpid () != curpid))
3423 { 4046 {
3424 curpid = getpid (); 4047 curpid = getpid ();
3425 postfork = 1; 4048 postfork = 1;
3426 } 4049 }
3427#endif 4050#endif
3428 4051
3429#if EV_FORK_ENABLE 4052#if EV_FORK_ENABLE
3430 /* we might have forked, so queue fork handlers */ 4053 /* we might have forked, so queue fork handlers */
3431 if (expect_false (postfork)) 4054 if (ecb_expect_false (postfork))
3432 if (forkcnt) 4055 if (forkcnt)
3433 { 4056 {
3434 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4057 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3435 EV_INVOKE_PENDING; 4058 EV_INVOKE_PENDING;
3436 } 4059 }
3437#endif 4060#endif
3438 4061
3439#if EV_PREPARE_ENABLE 4062#if EV_PREPARE_ENABLE
3440 /* queue prepare watchers (and execute them) */ 4063 /* queue prepare watchers (and execute them) */
3441 if (expect_false (preparecnt)) 4064 if (ecb_expect_false (preparecnt))
3442 { 4065 {
3443 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4066 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3444 EV_INVOKE_PENDING; 4067 EV_INVOKE_PENDING;
3445 } 4068 }
3446#endif 4069#endif
3447 4070
3448 if (expect_false (loop_done)) 4071 if (ecb_expect_false (loop_done))
3449 break; 4072 break;
3450 4073
3451 /* we might have forked, so reify kernel state if necessary */ 4074 /* we might have forked, so reify kernel state if necessary */
3452 if (expect_false (postfork)) 4075 if (ecb_expect_false (postfork))
3453 loop_fork (EV_A); 4076 loop_fork (EV_A);
3454 4077
3455 /* update fd-related kernel structures */ 4078 /* update fd-related kernel structures */
3456 fd_reify (EV_A); 4079 fd_reify (EV_A);
3457 4080
… …
3462 4085
3463 /* remember old timestamp for io_blocktime calculation */ 4086 /* remember old timestamp for io_blocktime calculation */
3464 ev_tstamp prev_mn_now = mn_now; 4087 ev_tstamp prev_mn_now = mn_now;
3465 4088
3466 /* update time to cancel out callback processing overhead */ 4089 /* update time to cancel out callback processing overhead */
3467 time_update (EV_A_ 1e100); 4090 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3468 4091
3469 /* from now on, we want a pipe-wake-up */ 4092 /* from now on, we want a pipe-wake-up */
3470 pipe_write_wanted = 1; 4093 pipe_write_wanted = 1;
3471 4094
3472 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 4095 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3473 4096
3474 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4097 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3475 { 4098 {
3476 waittime = MAX_BLOCKTIME; 4099 waittime = EV_TS_CONST (MAX_BLOCKTIME);
4100
4101#if EV_USE_MONOTONIC
4102 if (ecb_expect_true (have_monotonic))
4103 {
4104#if EV_USE_TIMERFD
4105 /* sleep a lot longer when we can reliably detect timejumps */
4106 if (ecb_expect_true (timerfd != -1))
4107 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4108#endif
4109#if !EV_PERIODIC_ENABLE
4110 /* without periodics but with monotonic clock there is no need */
4111 /* for any time jump detection, so sleep longer */
4112 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4113#endif
4114 }
4115#endif
3477 4116
3478 if (timercnt) 4117 if (timercnt)
3479 { 4118 {
3480 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4119 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3481 if (waittime > to) waittime = to; 4120 if (waittime > to) waittime = to;
… …
3488 if (waittime > to) waittime = to; 4127 if (waittime > to) waittime = to;
3489 } 4128 }
3490#endif 4129#endif
3491 4130
3492 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4131 /* don't let timeouts decrease the waittime below timeout_blocktime */
3493 if (expect_false (waittime < timeout_blocktime)) 4132 if (ecb_expect_false (waittime < timeout_blocktime))
3494 waittime = timeout_blocktime; 4133 waittime = timeout_blocktime;
3495 4134
3496 /* at this point, we NEED to wait, so we have to ensure */ 4135 /* now there are two more special cases left, either we have
3497 /* to pass a minimum nonzero value to the backend */ 4136 * already-expired timers, so we should not sleep, or we have timers
4137 * that expire very soon, in which case we need to wait for a minimum
4138 * amount of time for some event loop backends.
4139 */
3498 if (expect_false (waittime < backend_mintime)) 4140 if (ecb_expect_false (waittime < backend_mintime))
4141 waittime = waittime <= EV_TS_CONST (0.)
4142 ? EV_TS_CONST (0.)
3499 waittime = backend_mintime; 4143 : backend_mintime;
3500 4144
3501 /* extra check because io_blocktime is commonly 0 */ 4145 /* extra check because io_blocktime is commonly 0 */
3502 if (expect_false (io_blocktime)) 4146 if (ecb_expect_false (io_blocktime))
3503 { 4147 {
3504 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4148 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3505 4149
3506 if (sleeptime > waittime - backend_mintime) 4150 if (sleeptime > waittime - backend_mintime)
3507 sleeptime = waittime - backend_mintime; 4151 sleeptime = waittime - backend_mintime;
3508 4152
3509 if (expect_true (sleeptime > 0.)) 4153 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3510 { 4154 {
3511 ev_sleep (sleeptime); 4155 ev_sleep (sleeptime);
3512 waittime -= sleeptime; 4156 waittime -= sleeptime;
3513 } 4157 }
3514 } 4158 }
… …
3528 { 4172 {
3529 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4173 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3530 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4174 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3531 } 4175 }
3532 4176
3533
3534 /* update ev_rt_now, do magic */ 4177 /* update ev_rt_now, do magic */
3535 time_update (EV_A_ waittime + sleeptime); 4178 time_update (EV_A_ waittime + sleeptime);
3536 } 4179 }
3537 4180
3538 /* queue pending timers and reschedule them */ 4181 /* queue pending timers and reschedule them */
… …
3546 idle_reify (EV_A); 4189 idle_reify (EV_A);
3547#endif 4190#endif
3548 4191
3549#if EV_CHECK_ENABLE 4192#if EV_CHECK_ENABLE
3550 /* queue check watchers, to be executed first */ 4193 /* queue check watchers, to be executed first */
3551 if (expect_false (checkcnt)) 4194 if (ecb_expect_false (checkcnt))
3552 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4195 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3553#endif 4196#endif
3554 4197
3555 EV_INVOKE_PENDING; 4198 EV_INVOKE_PENDING;
3556 } 4199 }
3557 while (expect_true ( 4200 while (ecb_expect_true (
3558 activecnt 4201 activecnt
3559 && !loop_done 4202 && !loop_done
3560 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4203 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3561 )); 4204 ));
3562 4205
… …
3569 4212
3570 return activecnt; 4213 return activecnt;
3571} 4214}
3572 4215
3573void 4216void
3574ev_break (EV_P_ int how) EV_THROW 4217ev_break (EV_P_ int how) EV_NOEXCEPT
3575{ 4218{
3576 loop_done = how; 4219 loop_done = how;
3577} 4220}
3578 4221
3579void 4222void
3580ev_ref (EV_P) EV_THROW 4223ev_ref (EV_P) EV_NOEXCEPT
3581{ 4224{
3582 ++activecnt; 4225 ++activecnt;
3583} 4226}
3584 4227
3585void 4228void
3586ev_unref (EV_P) EV_THROW 4229ev_unref (EV_P) EV_NOEXCEPT
3587{ 4230{
3588 --activecnt; 4231 --activecnt;
3589} 4232}
3590 4233
3591void 4234void
3592ev_now_update (EV_P) EV_THROW 4235ev_now_update (EV_P) EV_NOEXCEPT
3593{ 4236{
3594 time_update (EV_A_ 1e100); 4237 time_update (EV_A_ EV_TSTAMP_HUGE);
3595} 4238}
3596 4239
3597void 4240void
3598ev_suspend (EV_P) EV_THROW 4241ev_suspend (EV_P) EV_NOEXCEPT
3599{ 4242{
3600 ev_now_update (EV_A); 4243 ev_now_update (EV_A);
3601} 4244}
3602 4245
3603void 4246void
3604ev_resume (EV_P) EV_THROW 4247ev_resume (EV_P) EV_NOEXCEPT
3605{ 4248{
3606 ev_tstamp mn_prev = mn_now; 4249 ev_tstamp mn_prev = mn_now;
3607 4250
3608 ev_now_update (EV_A); 4251 ev_now_update (EV_A);
3609 timers_reschedule (EV_A_ mn_now - mn_prev); 4252 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3626inline_size void 4269inline_size void
3627wlist_del (WL *head, WL elem) 4270wlist_del (WL *head, WL elem)
3628{ 4271{
3629 while (*head) 4272 while (*head)
3630 { 4273 {
3631 if (expect_true (*head == elem)) 4274 if (ecb_expect_true (*head == elem))
3632 { 4275 {
3633 *head = elem->next; 4276 *head = elem->next;
3634 break; 4277 break;
3635 } 4278 }
3636 4279
… …
3648 w->pending = 0; 4291 w->pending = 0;
3649 } 4292 }
3650} 4293}
3651 4294
3652int 4295int
3653ev_clear_pending (EV_P_ void *w) EV_THROW 4296ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3654{ 4297{
3655 W w_ = (W)w; 4298 W w_ = (W)w;
3656 int pending = w_->pending; 4299 int pending = w_->pending;
3657 4300
3658 if (expect_true (pending)) 4301 if (ecb_expect_true (pending))
3659 { 4302 {
3660 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4303 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3661 p->w = (W)&pending_w; 4304 p->w = (W)&pending_w;
3662 w_->pending = 0; 4305 w_->pending = 0;
3663 return p->events; 4306 return p->events;
… …
3690 w->active = 0; 4333 w->active = 0;
3691} 4334}
3692 4335
3693/*****************************************************************************/ 4336/*****************************************************************************/
3694 4337
3695void noinline 4338ecb_noinline
4339void
3696ev_io_start (EV_P_ ev_io *w) EV_THROW 4340ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3697{ 4341{
3698 int fd = w->fd; 4342 int fd = w->fd;
3699 4343
3700 if (expect_false (ev_is_active (w))) 4344 if (ecb_expect_false (ev_is_active (w)))
3701 return; 4345 return;
3702 4346
3703 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4347 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3704 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4348 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3705 4349
4350#if EV_VERIFY >= 2
4351 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4352#endif
3706 EV_FREQUENT_CHECK; 4353 EV_FREQUENT_CHECK;
3707 4354
3708 ev_start (EV_A_ (W)w, 1); 4355 ev_start (EV_A_ (W)w, 1);
3709 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4356 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3710 wlist_add (&anfds[fd].head, (WL)w); 4357 wlist_add (&anfds[fd].head, (WL)w);
3711 4358
3712 /* common bug, apparently */ 4359 /* common bug, apparently */
3713 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4360 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3714 4361
… …
3716 w->events &= ~EV__IOFDSET; 4363 w->events &= ~EV__IOFDSET;
3717 4364
3718 EV_FREQUENT_CHECK; 4365 EV_FREQUENT_CHECK;
3719} 4366}
3720 4367
3721void noinline 4368ecb_noinline
4369void
3722ev_io_stop (EV_P_ ev_io *w) EV_THROW 4370ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3723{ 4371{
3724 clear_pending (EV_A_ (W)w); 4372 clear_pending (EV_A_ (W)w);
3725 if (expect_false (!ev_is_active (w))) 4373 if (ecb_expect_false (!ev_is_active (w)))
3726 return; 4374 return;
3727 4375
3728 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4376 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3729 4377
4378#if EV_VERIFY >= 2
4379 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4380#endif
3730 EV_FREQUENT_CHECK; 4381 EV_FREQUENT_CHECK;
3731 4382
3732 wlist_del (&anfds[w->fd].head, (WL)w); 4383 wlist_del (&anfds[w->fd].head, (WL)w);
3733 ev_stop (EV_A_ (W)w); 4384 ev_stop (EV_A_ (W)w);
3734 4385
3735 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4386 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3736 4387
3737 EV_FREQUENT_CHECK; 4388 EV_FREQUENT_CHECK;
3738} 4389}
3739 4390
3740void noinline 4391ecb_noinline
4392void
3741ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4393ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3742{ 4394{
3743 if (expect_false (ev_is_active (w))) 4395 if (ecb_expect_false (ev_is_active (w)))
3744 return; 4396 return;
3745 4397
3746 ev_at (w) += mn_now; 4398 ev_at (w) += mn_now;
3747 4399
3748 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4400 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3749 4401
3750 EV_FREQUENT_CHECK; 4402 EV_FREQUENT_CHECK;
3751 4403
3752 ++timercnt; 4404 ++timercnt;
3753 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4405 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3754 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4406 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3755 ANHE_w (timers [ev_active (w)]) = (WT)w; 4407 ANHE_w (timers [ev_active (w)]) = (WT)w;
3756 ANHE_at_cache (timers [ev_active (w)]); 4408 ANHE_at_cache (timers [ev_active (w)]);
3757 upheap (timers, ev_active (w)); 4409 upheap (timers, ev_active (w));
3758 4410
3759 EV_FREQUENT_CHECK; 4411 EV_FREQUENT_CHECK;
3760 4412
3761 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4413 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3762} 4414}
3763 4415
3764void noinline 4416ecb_noinline
4417void
3765ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4418ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3766{ 4419{
3767 clear_pending (EV_A_ (W)w); 4420 clear_pending (EV_A_ (W)w);
3768 if (expect_false (!ev_is_active (w))) 4421 if (ecb_expect_false (!ev_is_active (w)))
3769 return; 4422 return;
3770 4423
3771 EV_FREQUENT_CHECK; 4424 EV_FREQUENT_CHECK;
3772 4425
3773 { 4426 {
… …
3775 4428
3776 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4429 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3777 4430
3778 --timercnt; 4431 --timercnt;
3779 4432
3780 if (expect_true (active < timercnt + HEAP0)) 4433 if (ecb_expect_true (active < timercnt + HEAP0))
3781 { 4434 {
3782 timers [active] = timers [timercnt + HEAP0]; 4435 timers [active] = timers [timercnt + HEAP0];
3783 adjustheap (timers, timercnt, active); 4436 adjustheap (timers, timercnt, active);
3784 } 4437 }
3785 } 4438 }
… …
3789 ev_stop (EV_A_ (W)w); 4442 ev_stop (EV_A_ (W)w);
3790 4443
3791 EV_FREQUENT_CHECK; 4444 EV_FREQUENT_CHECK;
3792} 4445}
3793 4446
3794void noinline 4447ecb_noinline
4448void
3795ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4449ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3796{ 4450{
3797 EV_FREQUENT_CHECK; 4451 EV_FREQUENT_CHECK;
3798 4452
3799 clear_pending (EV_A_ (W)w); 4453 clear_pending (EV_A_ (W)w);
3800 4454
… …
3817 4471
3818 EV_FREQUENT_CHECK; 4472 EV_FREQUENT_CHECK;
3819} 4473}
3820 4474
3821ev_tstamp 4475ev_tstamp
3822ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4476ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3823{ 4477{
3824 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4478 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3825} 4479}
3826 4480
3827#if EV_PERIODIC_ENABLE 4481#if EV_PERIODIC_ENABLE
3828void noinline 4482ecb_noinline
4483void
3829ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4484ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3830{ 4485{
3831 if (expect_false (ev_is_active (w))) 4486 if (ecb_expect_false (ev_is_active (w)))
3832 return; 4487 return;
4488
4489#if EV_USE_TIMERFD
4490 if (timerfd == -2)
4491 evtimerfd_init (EV_A);
4492#endif
3833 4493
3834 if (w->reschedule_cb) 4494 if (w->reschedule_cb)
3835 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4495 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3836 else if (w->interval) 4496 else if (w->interval)
3837 { 4497 {
… …
3843 4503
3844 EV_FREQUENT_CHECK; 4504 EV_FREQUENT_CHECK;
3845 4505
3846 ++periodiccnt; 4506 ++periodiccnt;
3847 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4507 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3848 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4508 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3849 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4509 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3850 ANHE_at_cache (periodics [ev_active (w)]); 4510 ANHE_at_cache (periodics [ev_active (w)]);
3851 upheap (periodics, ev_active (w)); 4511 upheap (periodics, ev_active (w));
3852 4512
3853 EV_FREQUENT_CHECK; 4513 EV_FREQUENT_CHECK;
3854 4514
3855 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4515 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3856} 4516}
3857 4517
3858void noinline 4518ecb_noinline
4519void
3859ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4520ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3860{ 4521{
3861 clear_pending (EV_A_ (W)w); 4522 clear_pending (EV_A_ (W)w);
3862 if (expect_false (!ev_is_active (w))) 4523 if (ecb_expect_false (!ev_is_active (w)))
3863 return; 4524 return;
3864 4525
3865 EV_FREQUENT_CHECK; 4526 EV_FREQUENT_CHECK;
3866 4527
3867 { 4528 {
… …
3869 4530
3870 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4531 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3871 4532
3872 --periodiccnt; 4533 --periodiccnt;
3873 4534
3874 if (expect_true (active < periodiccnt + HEAP0)) 4535 if (ecb_expect_true (active < periodiccnt + HEAP0))
3875 { 4536 {
3876 periodics [active] = periodics [periodiccnt + HEAP0]; 4537 periodics [active] = periodics [periodiccnt + HEAP0];
3877 adjustheap (periodics, periodiccnt, active); 4538 adjustheap (periodics, periodiccnt, active);
3878 } 4539 }
3879 } 4540 }
… …
3881 ev_stop (EV_A_ (W)w); 4542 ev_stop (EV_A_ (W)w);
3882 4543
3883 EV_FREQUENT_CHECK; 4544 EV_FREQUENT_CHECK;
3884} 4545}
3885 4546
3886void noinline 4547ecb_noinline
4548void
3887ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4549ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3888{ 4550{
3889 /* TODO: use adjustheap and recalculation */ 4551 /* TODO: use adjustheap and recalculation */
3890 ev_periodic_stop (EV_A_ w); 4552 ev_periodic_stop (EV_A_ w);
3891 ev_periodic_start (EV_A_ w); 4553 ev_periodic_start (EV_A_ w);
3892} 4554}
… …
3896# define SA_RESTART 0 4558# define SA_RESTART 0
3897#endif 4559#endif
3898 4560
3899#if EV_SIGNAL_ENABLE 4561#if EV_SIGNAL_ENABLE
3900 4562
3901void noinline 4563ecb_noinline
4564void
3902ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4565ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3903{ 4566{
3904 if (expect_false (ev_is_active (w))) 4567 if (ecb_expect_false (ev_is_active (w)))
3905 return; 4568 return;
3906 4569
3907 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4570 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3908 4571
3909#if EV_MULTIPLICITY 4572#if EV_MULTIPLICITY
… …
3978 } 4641 }
3979 4642
3980 EV_FREQUENT_CHECK; 4643 EV_FREQUENT_CHECK;
3981} 4644}
3982 4645
3983void noinline 4646ecb_noinline
4647void
3984ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4648ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3985{ 4649{
3986 clear_pending (EV_A_ (W)w); 4650 clear_pending (EV_A_ (W)w);
3987 if (expect_false (!ev_is_active (w))) 4651 if (ecb_expect_false (!ev_is_active (w)))
3988 return; 4652 return;
3989 4653
3990 EV_FREQUENT_CHECK; 4654 EV_FREQUENT_CHECK;
3991 4655
3992 wlist_del (&signals [w->signum - 1].head, (WL)w); 4656 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4020#endif 4684#endif
4021 4685
4022#if EV_CHILD_ENABLE 4686#if EV_CHILD_ENABLE
4023 4687
4024void 4688void
4025ev_child_start (EV_P_ ev_child *w) EV_THROW 4689ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4026{ 4690{
4027#if EV_MULTIPLICITY 4691#if EV_MULTIPLICITY
4028 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4692 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4029#endif 4693#endif
4030 if (expect_false (ev_is_active (w))) 4694 if (ecb_expect_false (ev_is_active (w)))
4031 return; 4695 return;
4032 4696
4033 EV_FREQUENT_CHECK; 4697 EV_FREQUENT_CHECK;
4034 4698
4035 ev_start (EV_A_ (W)w, 1); 4699 ev_start (EV_A_ (W)w, 1);
… …
4037 4701
4038 EV_FREQUENT_CHECK; 4702 EV_FREQUENT_CHECK;
4039} 4703}
4040 4704
4041void 4705void
4042ev_child_stop (EV_P_ ev_child *w) EV_THROW 4706ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4043{ 4707{
4044 clear_pending (EV_A_ (W)w); 4708 clear_pending (EV_A_ (W)w);
4045 if (expect_false (!ev_is_active (w))) 4709 if (ecb_expect_false (!ev_is_active (w)))
4046 return; 4710 return;
4047 4711
4048 EV_FREQUENT_CHECK; 4712 EV_FREQUENT_CHECK;
4049 4713
4050 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4714 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4064 4728
4065#define DEF_STAT_INTERVAL 5.0074891 4729#define DEF_STAT_INTERVAL 5.0074891
4066#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4730#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4067#define MIN_STAT_INTERVAL 0.1074891 4731#define MIN_STAT_INTERVAL 0.1074891
4068 4732
4069static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4733ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4070 4734
4071#if EV_USE_INOTIFY 4735#if EV_USE_INOTIFY
4072 4736
4073/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4737/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4074# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4738# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4075 4739
4076static void noinline 4740ecb_noinline
4741static void
4077infy_add (EV_P_ ev_stat *w) 4742infy_add (EV_P_ ev_stat *w)
4078{ 4743{
4079 w->wd = inotify_add_watch (fs_fd, w->path, 4744 w->wd = inotify_add_watch (fs_fd, w->path,
4080 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4745 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4081 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4746 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4145 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4810 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4146 ev_timer_again (EV_A_ &w->timer); 4811 ev_timer_again (EV_A_ &w->timer);
4147 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4812 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4148} 4813}
4149 4814
4150static void noinline 4815ecb_noinline
4816static void
4151infy_del (EV_P_ ev_stat *w) 4817infy_del (EV_P_ ev_stat *w)
4152{ 4818{
4153 int slot; 4819 int slot;
4154 int wd = w->wd; 4820 int wd = w->wd;
4155 4821
… …
4162 4828
4163 /* remove this watcher, if others are watching it, they will rearm */ 4829 /* remove this watcher, if others are watching it, they will rearm */
4164 inotify_rm_watch (fs_fd, wd); 4830 inotify_rm_watch (fs_fd, wd);
4165} 4831}
4166 4832
4167static void noinline 4833ecb_noinline
4834static void
4168infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4835infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4169{ 4836{
4170 if (slot < 0) 4837 if (slot < 0)
4171 /* overflow, need to check for all hash slots */ 4838 /* overflow, need to check for all hash slots */
4172 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4839 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4208 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4875 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4209 ofs += sizeof (struct inotify_event) + ev->len; 4876 ofs += sizeof (struct inotify_event) + ev->len;
4210 } 4877 }
4211} 4878}
4212 4879
4213inline_size void ecb_cold 4880inline_size ecb_cold
4881void
4214ev_check_2625 (EV_P) 4882ev_check_2625 (EV_P)
4215{ 4883{
4216 /* kernels < 2.6.25 are borked 4884 /* kernels < 2.6.25 are borked
4217 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4885 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4218 */ 4886 */
… …
4308#else 4976#else
4309# define EV_LSTAT(p,b) lstat (p, b) 4977# define EV_LSTAT(p,b) lstat (p, b)
4310#endif 4978#endif
4311 4979
4312void 4980void
4313ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4981ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4314{ 4982{
4315 if (lstat (w->path, &w->attr) < 0) 4983 if (lstat (w->path, &w->attr) < 0)
4316 w->attr.st_nlink = 0; 4984 w->attr.st_nlink = 0;
4317 else if (!w->attr.st_nlink) 4985 else if (!w->attr.st_nlink)
4318 w->attr.st_nlink = 1; 4986 w->attr.st_nlink = 1;
4319} 4987}
4320 4988
4321static void noinline 4989ecb_noinline
4990static void
4322stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4991stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4323{ 4992{
4324 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4993 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4325 4994
4326 ev_statdata prev = w->attr; 4995 ev_statdata prev = w->attr;
… …
4357 ev_feed_event (EV_A_ w, EV_STAT); 5026 ev_feed_event (EV_A_ w, EV_STAT);
4358 } 5027 }
4359} 5028}
4360 5029
4361void 5030void
4362ev_stat_start (EV_P_ ev_stat *w) EV_THROW 5031ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4363{ 5032{
4364 if (expect_false (ev_is_active (w))) 5033 if (ecb_expect_false (ev_is_active (w)))
4365 return; 5034 return;
4366 5035
4367 ev_stat_stat (EV_A_ w); 5036 ev_stat_stat (EV_A_ w);
4368 5037
4369 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5038 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4388 5057
4389 EV_FREQUENT_CHECK; 5058 EV_FREQUENT_CHECK;
4390} 5059}
4391 5060
4392void 5061void
4393ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 5062ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4394{ 5063{
4395 clear_pending (EV_A_ (W)w); 5064 clear_pending (EV_A_ (W)w);
4396 if (expect_false (!ev_is_active (w))) 5065 if (ecb_expect_false (!ev_is_active (w)))
4397 return; 5066 return;
4398 5067
4399 EV_FREQUENT_CHECK; 5068 EV_FREQUENT_CHECK;
4400 5069
4401#if EV_USE_INOTIFY 5070#if EV_USE_INOTIFY
… …
4414} 5083}
4415#endif 5084#endif
4416 5085
4417#if EV_IDLE_ENABLE 5086#if EV_IDLE_ENABLE
4418void 5087void
4419ev_idle_start (EV_P_ ev_idle *w) EV_THROW 5088ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4420{ 5089{
4421 if (expect_false (ev_is_active (w))) 5090 if (ecb_expect_false (ev_is_active (w)))
4422 return; 5091 return;
4423 5092
4424 pri_adjust (EV_A_ (W)w); 5093 pri_adjust (EV_A_ (W)w);
4425 5094
4426 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
… …
4429 int active = ++idlecnt [ABSPRI (w)]; 5098 int active = ++idlecnt [ABSPRI (w)];
4430 5099
4431 ++idleall; 5100 ++idleall;
4432 ev_start (EV_A_ (W)w, active); 5101 ev_start (EV_A_ (W)w, active);
4433 5102
4434 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 5103 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4435 idles [ABSPRI (w)][active - 1] = w; 5104 idles [ABSPRI (w)][active - 1] = w;
4436 } 5105 }
4437 5106
4438 EV_FREQUENT_CHECK; 5107 EV_FREQUENT_CHECK;
4439} 5108}
4440 5109
4441void 5110void
4442ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 5111ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4443{ 5112{
4444 clear_pending (EV_A_ (W)w); 5113 clear_pending (EV_A_ (W)w);
4445 if (expect_false (!ev_is_active (w))) 5114 if (ecb_expect_false (!ev_is_active (w)))
4446 return; 5115 return;
4447 5116
4448 EV_FREQUENT_CHECK; 5117 EV_FREQUENT_CHECK;
4449 5118
4450 { 5119 {
… …
4461} 5130}
4462#endif 5131#endif
4463 5132
4464#if EV_PREPARE_ENABLE 5133#if EV_PREPARE_ENABLE
4465void 5134void
4466ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 5135ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4467{ 5136{
4468 if (expect_false (ev_is_active (w))) 5137 if (ecb_expect_false (ev_is_active (w)))
4469 return; 5138 return;
4470 5139
4471 EV_FREQUENT_CHECK; 5140 EV_FREQUENT_CHECK;
4472 5141
4473 ev_start (EV_A_ (W)w, ++preparecnt); 5142 ev_start (EV_A_ (W)w, ++preparecnt);
4474 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 5143 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4475 prepares [preparecnt - 1] = w; 5144 prepares [preparecnt - 1] = w;
4476 5145
4477 EV_FREQUENT_CHECK; 5146 EV_FREQUENT_CHECK;
4478} 5147}
4479 5148
4480void 5149void
4481ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 5150ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4482{ 5151{
4483 clear_pending (EV_A_ (W)w); 5152 clear_pending (EV_A_ (W)w);
4484 if (expect_false (!ev_is_active (w))) 5153 if (ecb_expect_false (!ev_is_active (w)))
4485 return; 5154 return;
4486 5155
4487 EV_FREQUENT_CHECK; 5156 EV_FREQUENT_CHECK;
4488 5157
4489 { 5158 {
… …
4499} 5168}
4500#endif 5169#endif
4501 5170
4502#if EV_CHECK_ENABLE 5171#if EV_CHECK_ENABLE
4503void 5172void
4504ev_check_start (EV_P_ ev_check *w) EV_THROW 5173ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4505{ 5174{
4506 if (expect_false (ev_is_active (w))) 5175 if (ecb_expect_false (ev_is_active (w)))
4507 return; 5176 return;
4508 5177
4509 EV_FREQUENT_CHECK; 5178 EV_FREQUENT_CHECK;
4510 5179
4511 ev_start (EV_A_ (W)w, ++checkcnt); 5180 ev_start (EV_A_ (W)w, ++checkcnt);
4512 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5181 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4513 checks [checkcnt - 1] = w; 5182 checks [checkcnt - 1] = w;
4514 5183
4515 EV_FREQUENT_CHECK; 5184 EV_FREQUENT_CHECK;
4516} 5185}
4517 5186
4518void 5187void
4519ev_check_stop (EV_P_ ev_check *w) EV_THROW 5188ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4520{ 5189{
4521 clear_pending (EV_A_ (W)w); 5190 clear_pending (EV_A_ (W)w);
4522 if (expect_false (!ev_is_active (w))) 5191 if (ecb_expect_false (!ev_is_active (w)))
4523 return; 5192 return;
4524 5193
4525 EV_FREQUENT_CHECK; 5194 EV_FREQUENT_CHECK;
4526 5195
4527 { 5196 {
… …
4536 EV_FREQUENT_CHECK; 5205 EV_FREQUENT_CHECK;
4537} 5206}
4538#endif 5207#endif
4539 5208
4540#if EV_EMBED_ENABLE 5209#if EV_EMBED_ENABLE
4541void noinline 5210ecb_noinline
5211void
4542ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5212ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4543{ 5213{
4544 ev_run (w->other, EVRUN_NOWAIT); 5214 ev_run (w->other, EVRUN_NOWAIT);
4545} 5215}
4546 5216
4547static void 5217static void
… …
4569 ev_run (EV_A_ EVRUN_NOWAIT); 5239 ev_run (EV_A_ EVRUN_NOWAIT);
4570 } 5240 }
4571 } 5241 }
4572} 5242}
4573 5243
5244#if EV_FORK_ENABLE
4574static void 5245static void
4575embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5246embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4576{ 5247{
4577 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5248 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4578 5249
… …
4585 ev_run (EV_A_ EVRUN_NOWAIT); 5256 ev_run (EV_A_ EVRUN_NOWAIT);
4586 } 5257 }
4587 5258
4588 ev_embed_start (EV_A_ w); 5259 ev_embed_start (EV_A_ w);
4589} 5260}
5261#endif
4590 5262
4591#if 0 5263#if 0
4592static void 5264static void
4593embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5265embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4594{ 5266{
4595 ev_idle_stop (EV_A_ idle); 5267 ev_idle_stop (EV_A_ idle);
4596} 5268}
4597#endif 5269#endif
4598 5270
4599void 5271void
4600ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5272ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4601{ 5273{
4602 if (expect_false (ev_is_active (w))) 5274 if (ecb_expect_false (ev_is_active (w)))
4603 return; 5275 return;
4604 5276
4605 { 5277 {
4606 EV_P = w->other; 5278 EV_P = w->other;
4607 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5279 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4615 5287
4616 ev_prepare_init (&w->prepare, embed_prepare_cb); 5288 ev_prepare_init (&w->prepare, embed_prepare_cb);
4617 ev_set_priority (&w->prepare, EV_MINPRI); 5289 ev_set_priority (&w->prepare, EV_MINPRI);
4618 ev_prepare_start (EV_A_ &w->prepare); 5290 ev_prepare_start (EV_A_ &w->prepare);
4619 5291
5292#if EV_FORK_ENABLE
4620 ev_fork_init (&w->fork, embed_fork_cb); 5293 ev_fork_init (&w->fork, embed_fork_cb);
4621 ev_fork_start (EV_A_ &w->fork); 5294 ev_fork_start (EV_A_ &w->fork);
5295#endif
4622 5296
4623 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5297 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4624 5298
4625 ev_start (EV_A_ (W)w, 1); 5299 ev_start (EV_A_ (W)w, 1);
4626 5300
4627 EV_FREQUENT_CHECK; 5301 EV_FREQUENT_CHECK;
4628} 5302}
4629 5303
4630void 5304void
4631ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5305ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4632{ 5306{
4633 clear_pending (EV_A_ (W)w); 5307 clear_pending (EV_A_ (W)w);
4634 if (expect_false (!ev_is_active (w))) 5308 if (ecb_expect_false (!ev_is_active (w)))
4635 return; 5309 return;
4636 5310
4637 EV_FREQUENT_CHECK; 5311 EV_FREQUENT_CHECK;
4638 5312
4639 ev_io_stop (EV_A_ &w->io); 5313 ev_io_stop (EV_A_ &w->io);
4640 ev_prepare_stop (EV_A_ &w->prepare); 5314 ev_prepare_stop (EV_A_ &w->prepare);
5315#if EV_FORK_ENABLE
4641 ev_fork_stop (EV_A_ &w->fork); 5316 ev_fork_stop (EV_A_ &w->fork);
5317#endif
4642 5318
4643 ev_stop (EV_A_ (W)w); 5319 ev_stop (EV_A_ (W)w);
4644 5320
4645 EV_FREQUENT_CHECK; 5321 EV_FREQUENT_CHECK;
4646} 5322}
4647#endif 5323#endif
4648 5324
4649#if EV_FORK_ENABLE 5325#if EV_FORK_ENABLE
4650void 5326void
4651ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5327ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4652{ 5328{
4653 if (expect_false (ev_is_active (w))) 5329 if (ecb_expect_false (ev_is_active (w)))
4654 return; 5330 return;
4655 5331
4656 EV_FREQUENT_CHECK; 5332 EV_FREQUENT_CHECK;
4657 5333
4658 ev_start (EV_A_ (W)w, ++forkcnt); 5334 ev_start (EV_A_ (W)w, ++forkcnt);
4659 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5335 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4660 forks [forkcnt - 1] = w; 5336 forks [forkcnt - 1] = w;
4661 5337
4662 EV_FREQUENT_CHECK; 5338 EV_FREQUENT_CHECK;
4663} 5339}
4664 5340
4665void 5341void
4666ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5342ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4667{ 5343{
4668 clear_pending (EV_A_ (W)w); 5344 clear_pending (EV_A_ (W)w);
4669 if (expect_false (!ev_is_active (w))) 5345 if (ecb_expect_false (!ev_is_active (w)))
4670 return; 5346 return;
4671 5347
4672 EV_FREQUENT_CHECK; 5348 EV_FREQUENT_CHECK;
4673 5349
4674 { 5350 {
… …
4684} 5360}
4685#endif 5361#endif
4686 5362
4687#if EV_CLEANUP_ENABLE 5363#if EV_CLEANUP_ENABLE
4688void 5364void
4689ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5365ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4690{ 5366{
4691 if (expect_false (ev_is_active (w))) 5367 if (ecb_expect_false (ev_is_active (w)))
4692 return; 5368 return;
4693 5369
4694 EV_FREQUENT_CHECK; 5370 EV_FREQUENT_CHECK;
4695 5371
4696 ev_start (EV_A_ (W)w, ++cleanupcnt); 5372 ev_start (EV_A_ (W)w, ++cleanupcnt);
4697 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5373 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4698 cleanups [cleanupcnt - 1] = w; 5374 cleanups [cleanupcnt - 1] = w;
4699 5375
4700 /* cleanup watchers should never keep a refcount on the loop */ 5376 /* cleanup watchers should never keep a refcount on the loop */
4701 ev_unref (EV_A); 5377 ev_unref (EV_A);
4702 EV_FREQUENT_CHECK; 5378 EV_FREQUENT_CHECK;
4703} 5379}
4704 5380
4705void 5381void
4706ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5382ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4707{ 5383{
4708 clear_pending (EV_A_ (W)w); 5384 clear_pending (EV_A_ (W)w);
4709 if (expect_false (!ev_is_active (w))) 5385 if (ecb_expect_false (!ev_is_active (w)))
4710 return; 5386 return;
4711 5387
4712 EV_FREQUENT_CHECK; 5388 EV_FREQUENT_CHECK;
4713 ev_ref (EV_A); 5389 ev_ref (EV_A);
4714 5390
… …
4725} 5401}
4726#endif 5402#endif
4727 5403
4728#if EV_ASYNC_ENABLE 5404#if EV_ASYNC_ENABLE
4729void 5405void
4730ev_async_start (EV_P_ ev_async *w) EV_THROW 5406ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4731{ 5407{
4732 if (expect_false (ev_is_active (w))) 5408 if (ecb_expect_false (ev_is_active (w)))
4733 return; 5409 return;
4734 5410
4735 w->sent = 0; 5411 w->sent = 0;
4736 5412
4737 evpipe_init (EV_A); 5413 evpipe_init (EV_A);
4738 5414
4739 EV_FREQUENT_CHECK; 5415 EV_FREQUENT_CHECK;
4740 5416
4741 ev_start (EV_A_ (W)w, ++asynccnt); 5417 ev_start (EV_A_ (W)w, ++asynccnt);
4742 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5418 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4743 asyncs [asynccnt - 1] = w; 5419 asyncs [asynccnt - 1] = w;
4744 5420
4745 EV_FREQUENT_CHECK; 5421 EV_FREQUENT_CHECK;
4746} 5422}
4747 5423
4748void 5424void
4749ev_async_stop (EV_P_ ev_async *w) EV_THROW 5425ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4750{ 5426{
4751 clear_pending (EV_A_ (W)w); 5427 clear_pending (EV_A_ (W)w);
4752 if (expect_false (!ev_is_active (w))) 5428 if (ecb_expect_false (!ev_is_active (w)))
4753 return; 5429 return;
4754 5430
4755 EV_FREQUENT_CHECK; 5431 EV_FREQUENT_CHECK;
4756 5432
4757 { 5433 {
… …
4765 5441
4766 EV_FREQUENT_CHECK; 5442 EV_FREQUENT_CHECK;
4767} 5443}
4768 5444
4769void 5445void
4770ev_async_send (EV_P_ ev_async *w) EV_THROW 5446ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4771{ 5447{
4772 w->sent = 1; 5448 w->sent = 1;
4773 evpipe_write (EV_A_ &async_pending); 5449 evpipe_write (EV_A_ &async_pending);
4774} 5450}
4775#endif 5451#endif
… …
4812 5488
4813 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5489 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4814} 5490}
4815 5491
4816void 5492void
4817ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5493ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4818{ 5494{
4819 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5495 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4820
4821 if (expect_false (!once))
4822 {
4823 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4824 return;
4825 }
4826 5496
4827 once->cb = cb; 5497 once->cb = cb;
4828 once->arg = arg; 5498 once->arg = arg;
4829 5499
4830 ev_init (&once->io, once_cb_io); 5500 ev_init (&once->io, once_cb_io);
… …
4843} 5513}
4844 5514
4845/*****************************************************************************/ 5515/*****************************************************************************/
4846 5516
4847#if EV_WALK_ENABLE 5517#if EV_WALK_ENABLE
4848void ecb_cold 5518ecb_cold
5519void
4849ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5520ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4850{ 5521{
4851 int i, j; 5522 int i, j;
4852 ev_watcher_list *wl, *wn; 5523 ev_watcher_list *wl, *wn;
4853 5524
4854 if (types & (EV_IO | EV_EMBED)) 5525 if (types & (EV_IO | EV_EMBED))

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