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Comparing libev/ev.c (file contents):
Revision 1.481 by root, Thu Jun 1 20:25:50 2017 UTC vs.
Revision 1.537 by sf-exg, Sun May 14 19:02:31 2023 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
… …
342#ifndef EV_USE_SIGNALFD 391#ifndef EV_USE_SIGNALFD
343# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 392# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
344# define EV_USE_SIGNALFD EV_FEATURE_OS 393# define EV_USE_SIGNALFD EV_FEATURE_OS
345# else 394# else
346# define EV_USE_SIGNALFD 0 395# define EV_USE_SIGNALFD 0
396# endif
397#endif
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
347# endif 404# endif
348#endif 405#endif
349 406
350#if 0 /* debugging */ 407#if 0 /* debugging */
351# define EV_VERIFY 3 408# define EV_VERIFY 3
… …
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 0x00010005 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
… …
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)
573 700
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
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
578 #else 713 #else
… …
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 }
… …
653 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 791 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
654#endif 792#endif
655 793
656#ifndef ECB_MEMORY_FENCE 794#ifndef ECB_MEMORY_FENCE
657 #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")
658 #if __i386 || __i386__ 797 #if __i386 || __i386__
659 #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")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 799 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 800 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
662 #elif ECB_GCC_AMD64 801 #elif ECB_GCC_AMD64
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 802 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
664 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 803 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
665 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 804 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
666 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 805 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
667 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 806 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
668 #elif defined __ARM_ARCH_2__ \ 807 #elif defined __ARM_ARCH_2__ \
669 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ 808 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
670 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ 809 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
… …
712 #if ECB_GCC_VERSION(4,7) 851 #if ECB_GCC_VERSION(4,7)
713 /* see comment below (stdatomic.h) about the C11 memory model. */ 852 /* see comment below (stdatomic.h) about the C11 memory model. */
714 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 853 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
715 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 854 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
716 #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)
717 857
718 #elif ECB_CLANG_EXTENSION(c_atomic) 858 #elif ECB_CLANG_EXTENSION(c_atomic)
719 /* see comment below (stdatomic.h) about the C11 memory model. */ 859 /* see comment below (stdatomic.h) about the C11 memory model. */
720 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 860 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
721 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 861 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
722 #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)
723 864
724 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 865 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
725 #define ECB_MEMORY_FENCE __sync_synchronize () 866 #define ECB_MEMORY_FENCE __sync_synchronize ()
726 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 867 #elif _MSC_VER >= 1500 /* VC++ 2008 */
727 /* 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... */
… …
737 #elif defined _WIN32 878 #elif defined _WIN32
738 #include <WinNT.h> 879 #include <WinNT.h>
739 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 880 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
740 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 881 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
741 #include <mbarrier.h> 882 #include <mbarrier.h>
742 #define ECB_MEMORY_FENCE __machine_rw_barrier () 883 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
743 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 884 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
744 #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 ()
745 #elif __xlC__ 887 #elif __xlC__
746 #define ECB_MEMORY_FENCE __sync () 888 #define ECB_MEMORY_FENCE __sync ()
747 #endif 889 #endif
748#endif 890#endif
749 891
750#ifndef ECB_MEMORY_FENCE 892#ifndef ECB_MEMORY_FENCE
751 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 893 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
752 /* 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, */
753 /* not just C11 atomics and atomic accesses */ 895 /* not just C11 atomics and atomic accesses */
754 #include <stdatomic.h> 896 #include <stdatomic.h>
755 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
756 /* any fence other than seq_cst, which isn't very efficient for us. */
757 /* Why that is, we don't know - either the C11 memory model is quite useless */
758 /* for most usages, or gcc and clang have a bug */
759 /* I *currently* lean towards the latter, and inefficiently implement */
760 /* all three of ecb's fences as a seq_cst fence */
761 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
762 /* for all __atomic_thread_fence's except seq_cst */
763 #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)
764 #endif 900 #endif
765#endif 901#endif
766 902
767#ifndef ECB_MEMORY_FENCE 903#ifndef ECB_MEMORY_FENCE
768 #if !ECB_AVOID_PTHREADS 904 #if !ECB_AVOID_PTHREADS
… …
786 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 922 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
787#endif 923#endif
788 924
789#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 925#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
790 #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 */
791#endif 931#endif
792 932
793/*****************************************************************************/ 933/*****************************************************************************/
794 934
795#if ECB_CPP 935#if ECB_CPP
… …
1079ecb_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); }
1080ecb_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); }
1081ecb_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); }
1082ecb_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); }
1083 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
1261
1084#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))
1085 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) 1263 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1086 #define ecb_bswap16(x) __builtin_bswap16 (x) 1264 #define ecb_bswap16(x) __builtin_bswap16 (x)
1087 #else 1265 #else
1088 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1266 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
… …
1159ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1337ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1160ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } 1338ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1161ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1339ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1162ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } 1340ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1163 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/*****************************************************************************/
1413
1164#if ECB_GCC_VERSION(3,0) || ECB_C99 1414#if ECB_GCC_VERSION(3,0) || ECB_C99
1165 #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))
1166#else 1416#else
1167 #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)))
1168#endif 1418#endif
… …
1191 return N; 1441 return N;
1192 } 1442 }
1193#else 1443#else
1194 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1444 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1195#endif 1445#endif
1446
1447/*****************************************************************************/
1196 1448
1197ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); 1449ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1198ecb_function_ ecb_const uint32_t 1450ecb_function_ ecb_const uint32_t
1199ecb_binary16_to_binary32 (uint32_t x) 1451ecb_binary16_to_binary32 (uint32_t x)
1200{ 1452{
… …
1309 || defined __sh__ \ 1561 || defined __sh__ \
1310 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ 1562 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1311 || (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__)) \
1312 || defined __aarch64__ 1564 || defined __aarch64__
1313 #define ECB_STDFP 1 1565 #define ECB_STDFP 1
1314 #include <string.h> /* for memcpy */
1315#else 1566#else
1316 #define ECB_STDFP 0 1567 #define ECB_STDFP 0
1317#endif 1568#endif
1318 1569
1319#ifndef ECB_NO_LIBM 1570#ifndef ECB_NO_LIBM
… …
1504/* ECB.H END */ 1755/* ECB.H END */
1505 1756
1506#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1757#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1507/* 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
1508 * 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
1509 * 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
1510 * libev, in which cases the memory fences become nops. 1761 * libev, in which cases the memory fences become nops.
1511 * alternatively, you can remove this #error and link against libpthread, 1762 * alternatively, you can remove this #error and link against libpthread,
1512 * which will then provide the memory fences. 1763 * which will then provide the memory fences.
1513 */ 1764 */
1514# error "memory fences not defined for your architecture, please report" 1765# error "memory fences not defined for your architecture, please report"
… …
1518# define ECB_MEMORY_FENCE do { } while (0) 1769# define ECB_MEMORY_FENCE do { } while (0)
1519# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1770# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1520# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1771# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1521#endif 1772#endif
1522 1773
1523#define expect_false(cond) ecb_expect_false (cond)
1524#define expect_true(cond) ecb_expect_true (cond)
1525#define noinline ecb_noinline
1526
1527#define inline_size ecb_inline 1774#define inline_size ecb_inline
1528 1775
1529#if EV_FEATURE_CODE 1776#if EV_FEATURE_CODE
1530# define inline_speed ecb_inline 1777# define inline_speed ecb_inline
1531#else 1778#else
1532# define inline_speed noinline static 1779# define inline_speed ecb_noinline static
1533#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/*****************************************************************************/
1534 1847
1535#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1848#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1536 1849
1537#if EV_MINPRI == EV_MAXPRI 1850#if EV_MINPRI == EV_MAXPRI
1538# define ABSPRI(w) (((W)w), 0) 1851# define ABSPRI(w) (((W)w), 0)
1539#else 1852#else
1540# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1853# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1541#endif 1854#endif
1542 1855
1543#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1856#define EMPTY /* required for microsofts broken pseudo-c compiler */
1544#define EMPTY2(a,b) /* used to suppress some warnings */
1545 1857
1546typedef ev_watcher *W; 1858typedef ev_watcher *W;
1547typedef ev_watcher_list *WL; 1859typedef ev_watcher_list *WL;
1548typedef ev_watcher_time *WT; 1860typedef ev_watcher_time *WT;
1549 1861
… …
1574# include "ev_win32.c" 1886# include "ev_win32.c"
1575#endif 1887#endif
1576 1888
1577/*****************************************************************************/ 1889/*****************************************************************************/
1578 1890
1891#if EV_USE_LINUXAIO
1892# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1893#endif
1894
1579/* define a suitable floor function (only used by periodics atm) */ 1895/* define a suitable floor function (only used by periodics atm) */
1580 1896
1581#if EV_USE_FLOOR 1897#if EV_USE_FLOOR
1582# include <math.h> 1898# include <math.h>
1583# define ev_floor(v) floor (v) 1899# define ev_floor(v) floor (v)
1584#else 1900#else
1585 1901
1586#include <float.h> 1902#include <float.h>
1587 1903
1588/* a floor() replacement function, should be independent of ev_tstamp type */ 1904/* a floor() replacement function, should be independent of ev_tstamp type */
1589noinline 1905ecb_noinline
1590static ev_tstamp 1906static ev_tstamp
1591ev_floor (ev_tstamp v) 1907ev_floor (ev_tstamp v)
1592{ 1908{
1593 /* the choice of shift factor is not terribly important */ 1909 /* the choice of shift factor is not terribly important */
1594#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1910#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1595 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1911 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1596#else 1912#else
1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1913 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1598#endif 1914#endif
1599 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
1600 /* argument too large for an unsigned long? */ 1924 /* argument too large for an unsigned long? then reduce it */
1601 if (expect_false (v >= shift)) 1925 if (ecb_expect_false (v >= shift))
1602 { 1926 {
1603 ev_tstamp f; 1927 ev_tstamp f;
1604 1928
1605 if (v == v - 1.) 1929 if (v == v - 1.)
1606 return v; /* very large number */ 1930 return v; /* very large numbers are assumed to be integer */
1607 1931
1608 f = shift * ev_floor (v * (1. / shift)); 1932 f = shift * ev_floor (v * (1. / shift));
1609 return f + ev_floor (v - f); 1933 return f + ev_floor (v - f);
1610 } 1934 }
1611 1935
1612 /* special treatment for negative args? */
1613 if (expect_false (v < 0.))
1614 {
1615 ev_tstamp f = -ev_floor (-v);
1616
1617 return f - (f == v ? 0 : 1);
1618 }
1619
1620 /* fits into an unsigned long */ 1936 /* fits into an unsigned long */
1621 return (unsigned long)v; 1937 return (unsigned long)v;
1622} 1938}
1623 1939
1624#endif 1940#endif
… …
1627 1943
1628#ifdef __linux 1944#ifdef __linux
1629# include <sys/utsname.h> 1945# include <sys/utsname.h>
1630#endif 1946#endif
1631 1947
1632noinline ecb_cold 1948ecb_noinline ecb_cold
1633static unsigned int 1949static unsigned int
1634ev_linux_version (void) 1950ev_linux_version (void)
1635{ 1951{
1636#ifdef __linux 1952#ifdef __linux
1637 unsigned int v = 0; 1953 unsigned int v = 0;
… …
1667} 1983}
1668 1984
1669/*****************************************************************************/ 1985/*****************************************************************************/
1670 1986
1671#if EV_AVOID_STDIO 1987#if EV_AVOID_STDIO
1672noinline ecb_cold 1988ecb_noinline ecb_cold
1673static void 1989static void
1674ev_printerr (const char *msg) 1990ev_printerr (const char *msg)
1675{ 1991{
1676 write (STDERR_FILENO, msg, strlen (msg)); 1992 write (STDERR_FILENO, msg, strlen (msg));
1677} 1993}
1678#endif 1994#endif
1679 1995
1680static void (*syserr_cb)(const char *msg) EV_THROW; 1996static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1681 1997
1682ecb_cold 1998ecb_cold
1683void 1999void
1684ev_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
1685{ 2001{
1686 syserr_cb = cb; 2002 syserr_cb = cb;
1687} 2003}
1688 2004
1689noinline ecb_cold 2005ecb_noinline ecb_cold
1690static void 2006static void
1691ev_syserr (const char *msg) 2007ev_syserr (const char *msg)
1692{ 2008{
1693 if (!msg) 2009 if (!msg)
1694 msg = "(libev) system error"; 2010 msg = "(libev) system error";
… …
1708 abort (); 2024 abort ();
1709 } 2025 }
1710} 2026}
1711 2027
1712static void * 2028static void *
1713ev_realloc_emul (void *ptr, long size) EV_THROW 2029ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1714{ 2030{
1715 /* some systems, notably openbsd and darwin, fail to properly 2031 /* some systems, notably openbsd and darwin, fail to properly
1716 * 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
1717 * the single unix specification, so work around them here. 2033 * the single unix specification, so work around them here.
1718 * recently, also (at least) fedora and debian started breaking it, 2034 * recently, also (at least) fedora and debian started breaking it,
… …
1724 2040
1725 free (ptr); 2041 free (ptr);
1726 return 0; 2042 return 0;
1727} 2043}
1728 2044
1729static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 2045static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1730 2046
1731ecb_cold 2047ecb_cold
1732void 2048void
1733ev_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
1734{ 2050{
1735 alloc = cb; 2051 alloc = cb;
1736} 2052}
1737 2053
1738inline_speed void * 2054inline_speed void *
… …
1765typedef struct 2081typedef struct
1766{ 2082{
1767 WL head; 2083 WL head;
1768 unsigned char events; /* the events watched for */ 2084 unsigned char events; /* the events watched for */
1769 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) */
1770 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 */
1771 unsigned char unused; 2087 unsigned char eflags; /* flags field for use by backends */
1772#if EV_USE_EPOLL 2088#if EV_USE_EPOLL
1773 unsigned int egen; /* generation counter to counter epoll bugs */ 2089 unsigned int egen; /* generation counter to counter epoll bugs */
1774#endif 2090#endif
1775#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2091#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1776 SOCKET handle; 2092 SOCKET handle;
… …
1830 static struct ev_loop default_loop_struct; 2146 static struct ev_loop default_loop_struct;
1831 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 */
1832 2148
1833#else 2149#else
1834 2150
1835 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 */
1836 #define VAR(name,decl) static decl; 2152 #define VAR(name,decl) static decl;
1837 #include "ev_vars.h" 2153 #include "ev_vars.h"
1838 #undef VAR 2154 #undef VAR
1839 2155
1840 static int ev_default_loop_ptr; 2156 static int ev_default_loop_ptr;
1841 2157
1842#endif 2158#endif
1843 2159
1844#if EV_FEATURE_API 2160#if EV_FEATURE_API
1845# 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)
1846# 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)
1847# define EV_INVOKE_PENDING invoke_cb (EV_A) 2163# define EV_INVOKE_PENDING invoke_cb (EV_A)
1848#else 2164#else
1849# define EV_RELEASE_CB (void)0 2165# define EV_RELEASE_CB (void)0
1850# define EV_ACQUIRE_CB (void)0 2166# define EV_ACQUIRE_CB (void)0
1851# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2167# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1855 2171
1856/*****************************************************************************/ 2172/*****************************************************************************/
1857 2173
1858#ifndef EV_HAVE_EV_TIME 2174#ifndef EV_HAVE_EV_TIME
1859ev_tstamp 2175ev_tstamp
1860ev_time (void) EV_THROW 2176ev_time (void) EV_NOEXCEPT
1861{ 2177{
1862#if EV_USE_REALTIME 2178#if EV_USE_REALTIME
1863 if (expect_true (have_realtime)) 2179 if (ecb_expect_true (have_realtime))
1864 { 2180 {
1865 struct timespec ts; 2181 struct timespec ts;
1866 clock_gettime (CLOCK_REALTIME, &ts); 2182 clock_gettime (CLOCK_REALTIME, &ts);
1867 return ts.tv_sec + ts.tv_nsec * 1e-9; 2183 return EV_TS_GET (ts);
1868 } 2184 }
1869#endif 2185#endif
1870 2186
2187 {
1871 struct timeval tv; 2188 struct timeval tv;
1872 gettimeofday (&tv, 0); 2189 gettimeofday (&tv, 0);
1873 return tv.tv_sec + tv.tv_usec * 1e-6; 2190 return EV_TV_GET (tv);
2191 }
1874} 2192}
1875#endif 2193#endif
1876 2194
1877inline_size ev_tstamp 2195inline_size ev_tstamp
1878get_clock (void) 2196get_clock (void)
1879{ 2197{
1880#if EV_USE_MONOTONIC 2198#if EV_USE_MONOTONIC
1881 if (expect_true (have_monotonic)) 2199 if (ecb_expect_true (have_monotonic))
1882 { 2200 {
1883 struct timespec ts; 2201 struct timespec ts;
1884 clock_gettime (CLOCK_MONOTONIC, &ts); 2202 clock_gettime (CLOCK_MONOTONIC, &ts);
1885 return ts.tv_sec + ts.tv_nsec * 1e-9; 2203 return EV_TS_GET (ts);
1886 } 2204 }
1887#endif 2205#endif
1888 2206
1889 return ev_time (); 2207 return ev_time ();
1890} 2208}
1891 2209
1892#if EV_MULTIPLICITY 2210#if EV_MULTIPLICITY
1893ev_tstamp 2211ev_tstamp
1894ev_now (EV_P) EV_THROW 2212ev_now (EV_P) EV_NOEXCEPT
1895{ 2213{
1896 return ev_rt_now; 2214 return ev_rt_now;
1897} 2215}
1898#endif 2216#endif
1899 2217
1900void 2218void
1901ev_sleep (ev_tstamp delay) EV_THROW 2219ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1902{ 2220{
1903 if (delay > 0.) 2221 if (delay > EV_TS_CONST (0.))
1904 { 2222 {
1905#if EV_USE_NANOSLEEP 2223#if EV_USE_NANOSLEEP
1906 struct timespec ts; 2224 struct timespec ts;
1907 2225
1908 EV_TS_SET (ts, delay); 2226 EV_TS_SET (ts, delay);
1909 nanosleep (&ts, 0); 2227 nanosleep (&ts, 0);
1910#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) */
1911 Sleep ((unsigned long)(delay * 1e3)); 2231 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1912#else 2232#else
1913 struct timeval tv; 2233 struct timeval tv;
1914 2234
1915 /* 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 */
1916 /* something not guaranteed by newer posix versions, but guaranteed */ 2236 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1946 } 2266 }
1947 2267
1948 return ncur; 2268 return ncur;
1949} 2269}
1950 2270
1951noinline ecb_cold 2271ecb_noinline ecb_cold
1952static void * 2272static void *
1953array_realloc (int elem, void *base, int *cur, int cnt) 2273array_realloc (int elem, void *base, int *cur, int cnt)
1954{ 2274{
1955 *cur = array_nextsize (elem, *cur, cnt); 2275 *cur = array_nextsize (elem, *cur, cnt);
1956 return ev_realloc (base, elem * *cur); 2276 return ev_realloc (base, elem * *cur);
1957} 2277}
1958 2278
2279#define array_needsize_noinit(base,offset,count)
2280
1959#define array_init_zero(base,count) \ 2281#define array_needsize_zerofill(base,offset,count) \
1960 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2282 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1961 2283
1962#define array_needsize(type,base,cur,cnt,init) \ 2284#define array_needsize(type,base,cur,cnt,init) \
1963 if (expect_false ((cnt) > (cur))) \ 2285 if (ecb_expect_false ((cnt) > (cur))) \
1964 { \ 2286 { \
1965 ecb_unused int ocur_ = (cur); \ 2287 ecb_unused int ocur_ = (cur); \
1966 (base) = (type *)array_realloc \ 2288 (base) = (type *)array_realloc \
1967 (sizeof (type), (base), &(cur), (cnt)); \ 2289 (sizeof (type), (base), &(cur), (cnt)); \
1968 init ((base) + (ocur_), (cur) - ocur_); \ 2290 init ((base), ocur_, ((cur) - ocur_)); \
1969 } 2291 }
1970 2292
1971#if 0 2293#if 0
1972#define array_slim(type,stem) \ 2294#define array_slim(type,stem) \
1973 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2295 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1982 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
1983 2305
1984/*****************************************************************************/ 2306/*****************************************************************************/
1985 2307
1986/* dummy callback for pending events */ 2308/* dummy callback for pending events */
1987noinline 2309ecb_noinline
1988static void 2310static void
1989pendingcb (EV_P_ ev_prepare *w, int revents) 2311pendingcb (EV_P_ ev_prepare *w, int revents)
1990{ 2312{
1991} 2313}
1992 2314
1993noinline 2315ecb_noinline
1994void 2316void
1995ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2317ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1996{ 2318{
1997 W w_ = (W)w; 2319 W w_ = (W)w;
1998 int pri = ABSPRI (w_); 2320 int pri = ABSPRI (w_);
1999 2321
2000 if (expect_false (w_->pending)) 2322 if (ecb_expect_false (w_->pending))
2001 pendings [pri][w_->pending - 1].events |= revents; 2323 pendings [pri][w_->pending - 1].events |= revents;
2002 else 2324 else
2003 { 2325 {
2004 w_->pending = ++pendingcnt [pri]; 2326 w_->pending = ++pendingcnt [pri];
2005 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2327 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2006 pendings [pri][w_->pending - 1].w = w_; 2328 pendings [pri][w_->pending - 1].w = w_;
2007 pendings [pri][w_->pending - 1].events = revents; 2329 pendings [pri][w_->pending - 1].events = revents;
2008 } 2330 }
2009 2331
2010 pendingpri = NUMPRI - 1; 2332 pendingpri = NUMPRI - 1;
2011} 2333}
2012 2334
2013inline_speed void 2335inline_speed void
2014feed_reverse (EV_P_ W w) 2336feed_reverse (EV_P_ W w)
2015{ 2337{
2016 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2338 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2017 rfeeds [rfeedcnt++] = w; 2339 rfeeds [rfeedcnt++] = w;
2018} 2340}
2019 2341
2020inline_size void 2342inline_size void
2021feed_reverse_done (EV_P_ int revents) 2343feed_reverse_done (EV_P_ int revents)
… …
2056inline_speed void 2378inline_speed void
2057fd_event (EV_P_ int fd, int revents) 2379fd_event (EV_P_ int fd, int revents)
2058{ 2380{
2059 ANFD *anfd = anfds + fd; 2381 ANFD *anfd = anfds + fd;
2060 2382
2061 if (expect_true (!anfd->reify)) 2383 if (ecb_expect_true (!anfd->reify))
2062 fd_event_nocheck (EV_A_ fd, revents); 2384 fd_event_nocheck (EV_A_ fd, revents);
2063} 2385}
2064 2386
2065void 2387void
2066ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2388ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
2067{ 2389{
2068 if (fd >= 0 && fd < anfdmax) 2390 if (fd >= 0 && fd < anfdmax)
2069 fd_event_nocheck (EV_A_ fd, revents); 2391 fd_event_nocheck (EV_A_ fd, revents);
2070} 2392}
2071 2393
… …
2074inline_size void 2396inline_size void
2075fd_reify (EV_P) 2397fd_reify (EV_P)
2076{ 2398{
2077 int i; 2399 int i;
2078 2400
2401 /* most backends do not modify the fdchanges list in backend_modify.
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
2079#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2413#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2080 for (i = 0; i < fdchangecnt; ++i) 2414 for (i = 0; i < changecnt; ++i)
2081 { 2415 {
2082 int fd = fdchanges [i]; 2416 int fd = fdchanges [i];
2083 ANFD *anfd = anfds + fd; 2417 ANFD *anfd = anfds + fd;
2084 2418
2085 if (anfd->reify & EV__IOFDSET && anfd->head) 2419 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2099 } 2433 }
2100 } 2434 }
2101 } 2435 }
2102#endif 2436#endif
2103 2437
2104 for (i = 0; i < fdchangecnt; ++i) 2438 for (i = 0; i < changecnt; ++i)
2105 { 2439 {
2106 int fd = fdchanges [i]; 2440 int fd = fdchanges [i];
2107 ANFD *anfd = anfds + fd; 2441 ANFD *anfd = anfds + fd;
2108 ev_io *w; 2442 ev_io *w;
2109 2443
2110 unsigned char o_events = anfd->events; 2444 unsigned char o_events = anfd->events;
2111 unsigned char o_reify = anfd->reify; 2445 unsigned char o_reify = anfd->reify;
2112 2446
2113 anfd->reify = 0; 2447 anfd->reify = 0;
2114 2448
2115 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2449 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2116 { 2450 {
2117 anfd->events = 0; 2451 anfd->events = 0;
2118 2452
2119 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)
2120 anfd->events |= (unsigned char)w->events; 2454 anfd->events |= (unsigned char)w->events;
… …
2125 2459
2126 if (o_reify & EV__IOFDSET) 2460 if (o_reify & EV__IOFDSET)
2127 backend_modify (EV_A_ fd, o_events, anfd->events); 2461 backend_modify (EV_A_ fd, o_events, anfd->events);
2128 } 2462 }
2129 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
2130 fdchangecnt = 0; 2471 fdchangecnt -= changecnt;
2131} 2472}
2132 2473
2133/* something about the given fd changed */ 2474/* something about the given fd changed */
2134inline_size 2475inline_size
2135void 2476void
2136fd_change (EV_P_ int fd, int flags) 2477fd_change (EV_P_ int fd, int flags)
2137{ 2478{
2138 unsigned char reify = anfds [fd].reify; 2479 unsigned char reify = anfds [fd].reify;
2139 anfds [fd].reify |= flags; 2480 anfds [fd].reify = reify | flags;
2140 2481
2141 if (expect_true (!reify)) 2482 if (ecb_expect_true (!reify))
2142 { 2483 {
2143 ++fdchangecnt; 2484 ++fdchangecnt;
2144 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2485 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2145 fdchanges [fdchangecnt - 1] = fd; 2486 fdchanges [fdchangecnt - 1] = fd;
2146 } 2487 }
2147} 2488}
2148 2489
2149/* 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 */
… …
2169 return fcntl (fd, F_GETFD) != -1; 2510 return fcntl (fd, F_GETFD) != -1;
2170#endif 2511#endif
2171} 2512}
2172 2513
2173/* called on EBADF to verify fds */ 2514/* called on EBADF to verify fds */
2174noinline ecb_cold 2515ecb_noinline ecb_cold
2175static void 2516static void
2176fd_ebadf (EV_P) 2517fd_ebadf (EV_P)
2177{ 2518{
2178 int fd; 2519 int fd;
2179 2520
… …
2182 if (!fd_valid (fd) && errno == EBADF) 2523 if (!fd_valid (fd) && errno == EBADF)
2183 fd_kill (EV_A_ fd); 2524 fd_kill (EV_A_ fd);
2184} 2525}
2185 2526
2186/* 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 */
2187noinline ecb_cold 2528ecb_noinline ecb_cold
2188static void 2529static void
2189fd_enomem (EV_P) 2530fd_enomem (EV_P)
2190{ 2531{
2191 int fd; 2532 int fd;
2192 2533
… …
2197 break; 2538 break;
2198 } 2539 }
2199} 2540}
2200 2541
2201/* 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 */
2202noinline 2543ecb_noinline
2203static void 2544static void
2204fd_rearm_all (EV_P) 2545fd_rearm_all (EV_P)
2205{ 2546{
2206 int fd; 2547 int fd;
2207 2548
… …
2261 ev_tstamp minat; 2602 ev_tstamp minat;
2262 ANHE *minpos; 2603 ANHE *minpos;
2263 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2604 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2264 2605
2265 /* find minimum child */ 2606 /* find minimum child */
2266 if (expect_true (pos + DHEAP - 1 < E)) 2607 if (ecb_expect_true (pos + DHEAP - 1 < E))
2267 { 2608 {
2268 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2609 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2269 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));
2270 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));
2271 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));
2272 } 2613 }
2273 else if (pos < E) 2614 else if (pos < E)
2274 { 2615 {
2275 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2616 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2276 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));
2277 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));
2278 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));
2279 } 2620 }
2280 else 2621 else
2281 break; 2622 break;
2282 2623
2283 if (ANHE_at (he) <= minat) 2624 if (ANHE_at (he) <= minat)
… …
2291 2632
2292 heap [k] = he; 2633 heap [k] = he;
2293 ev_active (ANHE_w (he)) = k; 2634 ev_active (ANHE_w (he)) = k;
2294} 2635}
2295 2636
2296#else /* 4HEAP */ 2637#else /* not 4HEAP */
2297 2638
2298#define HEAP0 1 2639#define HEAP0 1
2299#define HPARENT(k) ((k) >> 1) 2640#define HPARENT(k) ((k) >> 1)
2300#define UPHEAP_DONE(p,k) (!(p)) 2641#define UPHEAP_DONE(p,k) (!(p))
2301 2642
… …
2373 upheap (heap, i + HEAP0); 2714 upheap (heap, i + HEAP0);
2374} 2715}
2375 2716
2376/*****************************************************************************/ 2717/*****************************************************************************/
2377 2718
2378/* associate signal watchers to a signal signal */ 2719/* associate signal watchers to a signal */
2379typedef struct 2720typedef struct
2380{ 2721{
2381 EV_ATOMIC_T pending; 2722 EV_ATOMIC_T pending;
2382#if EV_MULTIPLICITY 2723#if EV_MULTIPLICITY
2383 EV_P; 2724 EV_P;
… …
2389 2730
2390/*****************************************************************************/ 2731/*****************************************************************************/
2391 2732
2392#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2733#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2393 2734
2394noinline ecb_cold 2735ecb_noinline ecb_cold
2395static void 2736static void
2396evpipe_init (EV_P) 2737evpipe_init (EV_P)
2397{ 2738{
2398 if (!ev_is_active (&pipe_w)) 2739 if (!ev_is_active (&pipe_w))
2399 { 2740 {
… …
2440inline_speed void 2781inline_speed void
2441evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2782evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2442{ 2783{
2443 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 */
2444 2785
2445 if (expect_true (*flag)) 2786 if (ecb_expect_true (*flag))
2446 return; 2787 return;
2447 2788
2448 *flag = 1; 2789 *flag = 1;
2449 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 */
2450 2791
… …
2471#endif 2812#endif
2472 { 2813 {
2473#ifdef _WIN32 2814#ifdef _WIN32
2474 WSABUF buf; 2815 WSABUF buf;
2475 DWORD sent; 2816 DWORD sent;
2476 buf.buf = &buf; 2817 buf.buf = (char *)&buf;
2477 buf.len = 1; 2818 buf.len = 1;
2478 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);
2479#else 2820#else
2480 write (evpipe [1], &(evpipe [1]), 1); 2821 write (evpipe [1], &(evpipe [1]), 1);
2481#endif 2822#endif
… …
2527 sig_pending = 0; 2868 sig_pending = 0;
2528 2869
2529 ECB_MEMORY_FENCE; 2870 ECB_MEMORY_FENCE;
2530 2871
2531 for (i = EV_NSIG - 1; i--; ) 2872 for (i = EV_NSIG - 1; i--; )
2532 if (expect_false (signals [i].pending)) 2873 if (ecb_expect_false (signals [i].pending))
2533 ev_feed_signal_event (EV_A_ i + 1); 2874 ev_feed_signal_event (EV_A_ i + 1);
2534 } 2875 }
2535#endif 2876#endif
2536 2877
2537#if EV_ASYNC_ENABLE 2878#if EV_ASYNC_ENABLE
… …
2553} 2894}
2554 2895
2555/*****************************************************************************/ 2896/*****************************************************************************/
2556 2897
2557void 2898void
2558ev_feed_signal (int signum) EV_THROW 2899ev_feed_signal (int signum) EV_NOEXCEPT
2559{ 2900{
2560#if EV_MULTIPLICITY 2901#if EV_MULTIPLICITY
2561 EV_P; 2902 EV_P;
2562 ECB_MEMORY_FENCE_ACQUIRE; 2903 ECB_MEMORY_FENCE_ACQUIRE;
2563 EV_A = signals [signum - 1].loop; 2904 EV_A = signals [signum - 1].loop;
… …
2578#endif 2919#endif
2579 2920
2580 ev_feed_signal (signum); 2921 ev_feed_signal (signum);
2581} 2922}
2582 2923
2583noinline 2924ecb_noinline
2584void 2925void
2585ev_feed_signal_event (EV_P_ int signum) EV_THROW 2926ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2586{ 2927{
2587 WL w; 2928 WL w;
2588 2929
2589 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2930 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2590 return; 2931 return;
2591 2932
2592 --signum; 2933 --signum;
2593 2934
2594#if EV_MULTIPLICITY 2935#if EV_MULTIPLICITY
2595 /* 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 */
2596 /* or, likely more useful, feeding a signal nobody is waiting for */ 2937 /* or, likely more useful, feeding a signal nobody is waiting for */
2597 2938
2598 if (expect_false (signals [signum].loop != EV_A)) 2939 if (ecb_expect_false (signals [signum].loop != EV_A))
2599 return; 2940 return;
2600#endif 2941#endif
2601 2942
2602 signals [signum].pending = 0; 2943 signals [signum].pending = 0;
2603 ECB_MEMORY_FENCE_RELEASE; 2944 ECB_MEMORY_FENCE_RELEASE;
… …
2687 3028
2688#endif 3029#endif
2689 3030
2690/*****************************************************************************/ 3031/*****************************************************************************/
2691 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
2692#if EV_USE_IOCP 3084#if EV_USE_IOCP
2693# include "ev_iocp.c" 3085# include "ev_iocp.c"
2694#endif 3086#endif
2695#if EV_USE_PORT 3087#if EV_USE_PORT
2696# include "ev_port.c" 3088# include "ev_port.c"
… …
2699# include "ev_kqueue.c" 3091# include "ev_kqueue.c"
2700#endif 3092#endif
2701#if EV_USE_EPOLL 3093#if EV_USE_EPOLL
2702# include "ev_epoll.c" 3094# include "ev_epoll.c"
2703#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
2704#if EV_USE_POLL 3102#if EV_USE_POLL
2705# include "ev_poll.c" 3103# include "ev_poll.c"
2706#endif 3104#endif
2707#if EV_USE_SELECT 3105#if EV_USE_SELECT
2708# include "ev_select.c" 3106# include "ev_select.c"
2709#endif 3107#endif
2710 3108
2711ecb_cold int 3109ecb_cold int
2712ev_version_major (void) EV_THROW 3110ev_version_major (void) EV_NOEXCEPT
2713{ 3111{
2714 return EV_VERSION_MAJOR; 3112 return EV_VERSION_MAJOR;
2715} 3113}
2716 3114
2717ecb_cold int 3115ecb_cold int
2718ev_version_minor (void) EV_THROW 3116ev_version_minor (void) EV_NOEXCEPT
2719{ 3117{
2720 return EV_VERSION_MINOR; 3118 return EV_VERSION_MINOR;
2721} 3119}
2722 3120
2723/* 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 */
… …
2732#endif 3130#endif
2733} 3131}
2734 3132
2735ecb_cold 3133ecb_cold
2736unsigned int 3134unsigned int
2737ev_supported_backends (void) EV_THROW 3135ev_supported_backends (void) EV_NOEXCEPT
2738{ 3136{
2739 unsigned int flags = 0; 3137 unsigned int flags = 0;
2740 3138
2741 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3139 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2742 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3140 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2743 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3141 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2744 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3142 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2745 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3143 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2746 3144 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3145 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3146
2747 return flags; 3147 return flags;
2748} 3148}
2749 3149
2750ecb_cold 3150ecb_cold
2751unsigned int 3151unsigned int
2752ev_recommended_backends (void) EV_THROW 3152ev_recommended_backends (void) EV_NOEXCEPT
2753{ 3153{
2754 unsigned int flags = ev_supported_backends (); 3154 unsigned int flags = ev_supported_backends ();
2755 3155
2756#ifndef __NetBSD__ 3156#ifndef __NetBSD__
2757 /* kqueue is borked on everything but netbsd apparently */ 3157 /* kqueue is borked on everything but netbsd apparently */
… …
2765#endif 3165#endif
2766#ifdef __FreeBSD__ 3166#ifdef __FreeBSD__
2767 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) */
2768#endif 3168#endif
2769 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
2770 return flags; 3179 return flags;
2771} 3180}
2772 3181
2773ecb_cold 3182ecb_cold
2774unsigned int 3183unsigned int
2775ev_embeddable_backends (void) EV_THROW 3184ev_embeddable_backends (void) EV_NOEXCEPT
2776{ 3185{
2777 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3186 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2778 3187
2779 /* 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 */
2780 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 */
2781 flags &= ~EVBACKEND_EPOLL; 3190 flags &= ~EVBACKEND_EPOLL;
2782 3191
3192 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3193
2783 return flags; 3194 return flags;
2784} 3195}
2785 3196
2786unsigned int 3197unsigned int
2787ev_backend (EV_P) EV_THROW 3198ev_backend (EV_P) EV_NOEXCEPT
2788{ 3199{
2789 return backend; 3200 return backend;
2790} 3201}
2791 3202
2792#if EV_FEATURE_API 3203#if EV_FEATURE_API
2793unsigned int 3204unsigned int
2794ev_iteration (EV_P) EV_THROW 3205ev_iteration (EV_P) EV_NOEXCEPT
2795{ 3206{
2796 return loop_count; 3207 return loop_count;
2797} 3208}
2798 3209
2799unsigned int 3210unsigned int
2800ev_depth (EV_P) EV_THROW 3211ev_depth (EV_P) EV_NOEXCEPT
2801{ 3212{
2802 return loop_depth; 3213 return loop_depth;
2803} 3214}
2804 3215
2805void 3216void
2806ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3217ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2807{ 3218{
2808 io_blocktime = interval; 3219 io_blocktime = interval;
2809} 3220}
2810 3221
2811void 3222void
2812ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3223ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2813{ 3224{
2814 timeout_blocktime = interval; 3225 timeout_blocktime = interval;
2815} 3226}
2816 3227
2817void 3228void
2818ev_set_userdata (EV_P_ void *data) EV_THROW 3229ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2819{ 3230{
2820 userdata = data; 3231 userdata = data;
2821} 3232}
2822 3233
2823void * 3234void *
2824ev_userdata (EV_P) EV_THROW 3235ev_userdata (EV_P) EV_NOEXCEPT
2825{ 3236{
2826 return userdata; 3237 return userdata;
2827} 3238}
2828 3239
2829void 3240void
2830ev_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
2831{ 3242{
2832 invoke_cb = invoke_pending_cb; 3243 invoke_cb = invoke_pending_cb;
2833} 3244}
2834 3245
2835void 3246void
2836ev_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
2837{ 3248{
2838 release_cb = release; 3249 release_cb = release;
2839 acquire_cb = acquire; 3250 acquire_cb = acquire;
2840} 3251}
2841#endif 3252#endif
2842 3253
2843/* initialise a loop structure, must be zero-initialised */ 3254/* initialise a loop structure, must be zero-initialised */
2844noinline ecb_cold 3255ecb_noinline ecb_cold
2845static void 3256static void
2846loop_init (EV_P_ unsigned int flags) EV_THROW 3257loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2847{ 3258{
2848 if (!backend) 3259 if (!backend)
2849 { 3260 {
2850 origflags = flags; 3261 origflags = flags;
2851 3262
… …
2904 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3315 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2905#endif 3316#endif
2906#if EV_USE_SIGNALFD 3317#if EV_USE_SIGNALFD
2907 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3318 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2908#endif 3319#endif
3320#if EV_USE_TIMERFD
3321 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3322#endif
2909 3323
2910 if (!(flags & EVBACKEND_MASK)) 3324 if (!(flags & EVBACKEND_MASK))
2911 flags |= ev_recommended_backends (); 3325 flags |= ev_recommended_backends ();
2912 3326
2913#if EV_USE_IOCP 3327#if EV_USE_IOCP
2914 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3328 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2915#endif 3329#endif
2916#if EV_USE_PORT 3330#if EV_USE_PORT
2917 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3331 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2918#endif 3332#endif
2919#if EV_USE_KQUEUE 3333#if EV_USE_KQUEUE
2920 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);
2921#endif 3341#endif
2922#if EV_USE_EPOLL 3342#if EV_USE_EPOLL
2923 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3343 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2924#endif 3344#endif
2925#if EV_USE_POLL 3345#if EV_USE_POLL
2926 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3346 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2927#endif 3347#endif
2928#if EV_USE_SELECT 3348#if EV_USE_SELECT
2929 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3349 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2930#endif 3350#endif
2931 3351
2932 ev_prepare_init (&pending_w, pendingcb); 3352 ev_prepare_init (&pending_w, pendingcb);
2933 3353
2934#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3354#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2951 return; 3371 return;
2952#endif 3372#endif
2953 3373
2954#if EV_CLEANUP_ENABLE 3374#if EV_CLEANUP_ENABLE
2955 /* queue cleanup watchers (and execute them) */ 3375 /* queue cleanup watchers (and execute them) */
2956 if (expect_false (cleanupcnt)) 3376 if (ecb_expect_false (cleanupcnt))
2957 { 3377 {
2958 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3378 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2959 EV_INVOKE_PENDING; 3379 EV_INVOKE_PENDING;
2960 } 3380 }
2961#endif 3381#endif
… …
2980#if EV_USE_SIGNALFD 3400#if EV_USE_SIGNALFD
2981 if (ev_is_active (&sigfd_w)) 3401 if (ev_is_active (&sigfd_w))
2982 close (sigfd); 3402 close (sigfd);
2983#endif 3403#endif
2984 3404
3405#if EV_USE_TIMERFD
3406 if (ev_is_active (&timerfd_w))
3407 close (timerfd);
3408#endif
3409
2985#if EV_USE_INOTIFY 3410#if EV_USE_INOTIFY
2986 if (fs_fd >= 0) 3411 if (fs_fd >= 0)
2987 close (fs_fd); 3412 close (fs_fd);
2988#endif 3413#endif
2989 3414
2990 if (backend_fd >= 0) 3415 if (backend_fd >= 0)
2991 close (backend_fd); 3416 close (backend_fd);
2992 3417
2993#if EV_USE_IOCP 3418#if EV_USE_IOCP
2994 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3419 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2995#endif 3420#endif
2996#if EV_USE_PORT 3421#if EV_USE_PORT
2997 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3422 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2998#endif 3423#endif
2999#if EV_USE_KQUEUE 3424#if EV_USE_KQUEUE
3000 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);
3001#endif 3432#endif
3002#if EV_USE_EPOLL 3433#if EV_USE_EPOLL
3003 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3434 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3004#endif 3435#endif
3005#if EV_USE_POLL 3436#if EV_USE_POLL
3006 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3437 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3007#endif 3438#endif
3008#if EV_USE_SELECT 3439#if EV_USE_SELECT
3009 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3440 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3010#endif 3441#endif
3011 3442
3012 for (i = NUMPRI; i--; ) 3443 for (i = NUMPRI; i--; )
3013 { 3444 {
3014 array_free (pending, [i]); 3445 array_free (pending, [i]);
… …
3056 3487
3057inline_size void 3488inline_size void
3058loop_fork (EV_P) 3489loop_fork (EV_P)
3059{ 3490{
3060#if EV_USE_PORT 3491#if EV_USE_PORT
3061 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3492 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3062#endif 3493#endif
3063#if EV_USE_KQUEUE 3494#if EV_USE_KQUEUE
3064 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);
3065#endif 3502#endif
3066#if EV_USE_EPOLL 3503#if EV_USE_EPOLL
3067 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3504 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3068#endif 3505#endif
3069#if EV_USE_INOTIFY 3506#if EV_USE_INOTIFY
3070 infy_fork (EV_A); 3507 infy_fork (EV_A);
3071#endif 3508#endif
3072 3509
3510 if (postfork != 2)
3511 {
3512 #if EV_USE_SIGNALFD
3513 /* surprisingly, nothing needs to be done for signalfd, according 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
3073#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3531 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3074 if (ev_is_active (&pipe_w) && postfork != 2) 3532 if (ev_is_active (&pipe_w))
3075 { 3533 {
3076 /* 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 */
3077 3535
3078 ev_ref (EV_A); 3536 ev_ref (EV_A);
3079 ev_io_stop (EV_A_ &pipe_w); 3537 ev_io_stop (EV_A_ &pipe_w);
3080 3538
3081 if (evpipe [0] >= 0) 3539 if (evpipe [0] >= 0)
3082 EV_WIN32_CLOSE_FD (evpipe [0]); 3540 EV_WIN32_CLOSE_FD (evpipe [0]);
3083 3541
3084 evpipe_init (EV_A); 3542 evpipe_init (EV_A);
3085 /* iterate over everything, in case we missed something before */ 3543 /* iterate over everything, in case we missed something before */
3086 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3544 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3545 }
3546 #endif
3087 } 3547 }
3088#endif
3089 3548
3090 postfork = 0; 3549 postfork = 0;
3091} 3550}
3092 3551
3093#if EV_MULTIPLICITY 3552#if EV_MULTIPLICITY
3094 3553
3095ecb_cold 3554ecb_cold
3096struct ev_loop * 3555struct ev_loop *
3097ev_loop_new (unsigned int flags) EV_THROW 3556ev_loop_new (unsigned int flags) EV_NOEXCEPT
3098{ 3557{
3099 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3558 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
3100 3559
3101 memset (EV_A, 0, sizeof (struct ev_loop)); 3560 memset (EV_A, 0, sizeof (struct ev_loop));
3102 loop_init (EV_A_ flags); 3561 loop_init (EV_A_ flags);
… …
3109} 3568}
3110 3569
3111#endif /* multiplicity */ 3570#endif /* multiplicity */
3112 3571
3113#if EV_VERIFY 3572#if EV_VERIFY
3114noinline ecb_cold 3573ecb_noinline ecb_cold
3115static void 3574static void
3116verify_watcher (EV_P_ W w) 3575verify_watcher (EV_P_ W w)
3117{ 3576{
3118 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));
3119 3578
3120 if (w->pending) 3579 if (w->pending)
3121 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));
3122} 3581}
3123 3582
3124noinline ecb_cold 3583ecb_noinline ecb_cold
3125static void 3584static void
3126verify_heap (EV_P_ ANHE *heap, int N) 3585verify_heap (EV_P_ ANHE *heap, int N)
3127{ 3586{
3128 int i; 3587 int i;
3129 3588
… …
3135 3594
3136 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3595 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3137 } 3596 }
3138} 3597}
3139 3598
3140noinline ecb_cold 3599ecb_noinline ecb_cold
3141static void 3600static void
3142array_verify (EV_P_ W *ws, int cnt) 3601array_verify (EV_P_ W *ws, int cnt)
3143{ 3602{
3144 while (cnt--) 3603 while (cnt--)
3145 { 3604 {
… …
3149} 3608}
3150#endif 3609#endif
3151 3610
3152#if EV_FEATURE_API 3611#if EV_FEATURE_API
3153void ecb_cold 3612void ecb_cold
3154ev_verify (EV_P) EV_THROW 3613ev_verify (EV_P) EV_NOEXCEPT
3155{ 3614{
3156#if EV_VERIFY 3615#if EV_VERIFY
3157 int i; 3616 int i;
3158 WL w, w2; 3617 WL w, w2;
3159 3618
… …
3240ecb_cold 3699ecb_cold
3241struct ev_loop * 3700struct ev_loop *
3242#else 3701#else
3243int 3702int
3244#endif 3703#endif
3245ev_default_loop (unsigned int flags) EV_THROW 3704ev_default_loop (unsigned int flags) EV_NOEXCEPT
3246{ 3705{
3247 if (!ev_default_loop_ptr) 3706 if (!ev_default_loop_ptr)
3248 { 3707 {
3249#if EV_MULTIPLICITY 3708#if EV_MULTIPLICITY
3250 EV_P = ev_default_loop_ptr = &default_loop_struct; 3709 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3269 3728
3270 return ev_default_loop_ptr; 3729 return ev_default_loop_ptr;
3271} 3730}
3272 3731
3273void 3732void
3274ev_loop_fork (EV_P) EV_THROW 3733ev_loop_fork (EV_P) EV_NOEXCEPT
3275{ 3734{
3276 postfork = 1; 3735 postfork = 1;
3277} 3736}
3278 3737
3279/*****************************************************************************/ 3738/*****************************************************************************/
… …
3283{ 3742{
3284 EV_CB_INVOKE ((W)w, revents); 3743 EV_CB_INVOKE ((W)w, revents);
3285} 3744}
3286 3745
3287unsigned int 3746unsigned int
3288ev_pending_count (EV_P) EV_THROW 3747ev_pending_count (EV_P) EV_NOEXCEPT
3289{ 3748{
3290 int pri; 3749 int pri;
3291 unsigned int count = 0; 3750 unsigned int count = 0;
3292 3751
3293 for (pri = NUMPRI; pri--; ) 3752 for (pri = NUMPRI; pri--; )
3294 count += pendingcnt [pri]; 3753 count += pendingcnt [pri];
3295 3754
3296 return count; 3755 return count;
3297} 3756}
3298 3757
3299noinline 3758ecb_noinline
3300void 3759void
3301ev_invoke_pending (EV_P) 3760ev_invoke_pending (EV_P)
3302{ 3761{
3303 pendingpri = NUMPRI; 3762 pendingpri = NUMPRI;
3304 3763
3305 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3764 do
3306 { 3765 {
3307 --pendingpri; 3766 --pendingpri;
3308 3767
3768 /* pendingpri possibly gets modified in the inner loop */
3309 while (pendingcnt [pendingpri]) 3769 while (pendingcnt [pendingpri])
3310 { 3770 {
3311 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3771 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3312 3772
3313 p->w->pending = 0; 3773 p->w->pending = 0;
3314 EV_CB_INVOKE (p->w, p->events); 3774 EV_CB_INVOKE (p->w, p->events);
3315 EV_FREQUENT_CHECK; 3775 EV_FREQUENT_CHECK;
3316 } 3776 }
3317 } 3777 }
3778 while (pendingpri);
3318} 3779}
3319 3780
3320#if EV_IDLE_ENABLE 3781#if EV_IDLE_ENABLE
3321/* make idle watchers pending. this handles the "call-idle */ 3782/* make idle watchers pending. this handles the "call-idle */
3322/* only when higher priorities are idle" logic */ 3783/* only when higher priorities are idle" logic */
3323inline_size void 3784inline_size void
3324idle_reify (EV_P) 3785idle_reify (EV_P)
3325{ 3786{
3326 if (expect_false (idleall)) 3787 if (ecb_expect_false (idleall))
3327 { 3788 {
3328 int pri; 3789 int pri;
3329 3790
3330 for (pri = NUMPRI; pri--; ) 3791 for (pri = NUMPRI; pri--; )
3331 { 3792 {
… …
3361 { 3822 {
3362 ev_at (w) += w->repeat; 3823 ev_at (w) += w->repeat;
3363 if (ev_at (w) < mn_now) 3824 if (ev_at (w) < mn_now)
3364 ev_at (w) = mn_now; 3825 ev_at (w) = mn_now;
3365 3826
3366 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.)));
3367 3828
3368 ANHE_at_cache (timers [HEAP0]); 3829 ANHE_at_cache (timers [HEAP0]);
3369 downheap (timers, timercnt, HEAP0); 3830 downheap (timers, timercnt, HEAP0);
3370 } 3831 }
3371 else 3832 else
… …
3380 } 3841 }
3381} 3842}
3382 3843
3383#if EV_PERIODIC_ENABLE 3844#if EV_PERIODIC_ENABLE
3384 3845
3385noinline 3846ecb_noinline
3386static void 3847static void
3387periodic_recalc (EV_P_ ev_periodic *w) 3848periodic_recalc (EV_P_ ev_periodic *w)
3388{ 3849{
3389 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3850 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3390 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);
… …
3393 while (at <= ev_rt_now) 3854 while (at <= ev_rt_now)
3394 { 3855 {
3395 ev_tstamp nat = at + w->interval; 3856 ev_tstamp nat = at + w->interval;
3396 3857
3397 /* when resolution fails us, we use ev_rt_now */ 3858 /* when resolution fails us, we use ev_rt_now */
3398 if (expect_false (nat == at)) 3859 if (ecb_expect_false (nat == at))
3399 { 3860 {
3400 at = ev_rt_now; 3861 at = ev_rt_now;
3401 break; 3862 break;
3402 } 3863 }
3403 3864
… …
3449 } 3910 }
3450} 3911}
3451 3912
3452/* simply recalculate all periodics */ 3913/* simply recalculate all periodics */
3453/* 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? */
3454noinline ecb_cold 3915ecb_noinline ecb_cold
3455static void 3916static void
3456periodics_reschedule (EV_P) 3917periodics_reschedule (EV_P)
3457{ 3918{
3458 int i; 3919 int i;
3459 3920
… …
3473 reheap (periodics, periodiccnt); 3934 reheap (periodics, periodiccnt);
3474} 3935}
3475#endif 3936#endif
3476 3937
3477/* adjust all timers by a given offset */ 3938/* adjust all timers by a given offset */
3478noinline ecb_cold 3939ecb_noinline ecb_cold
3479static void 3940static void
3480timers_reschedule (EV_P_ ev_tstamp adjust) 3941timers_reschedule (EV_P_ ev_tstamp adjust)
3481{ 3942{
3482 int i; 3943 int i;
3483 3944
… …
3493/* also detect if there was a timejump, and act accordingly */ 3954/* also detect if there was a timejump, and act accordingly */
3494inline_speed void 3955inline_speed void
3495time_update (EV_P_ ev_tstamp max_block) 3956time_update (EV_P_ ev_tstamp max_block)
3496{ 3957{
3497#if EV_USE_MONOTONIC 3958#if EV_USE_MONOTONIC
3498 if (expect_true (have_monotonic)) 3959 if (ecb_expect_true (have_monotonic))
3499 { 3960 {
3500 int i; 3961 int i;
3501 ev_tstamp odiff = rtmn_diff; 3962 ev_tstamp odiff = rtmn_diff;
3502 3963
3503 mn_now = get_clock (); 3964 mn_now = get_clock ();
3504 3965
3505 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3966 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3506 /* interpolate in the meantime */ 3967 /* interpolate in the meantime */
3507 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)))
3508 { 3969 {
3509 ev_rt_now = rtmn_diff + mn_now; 3970 ev_rt_now = rtmn_diff + mn_now;
3510 return; 3971 return;
3511 } 3972 }
3512 3973
… …
3526 ev_tstamp diff; 3987 ev_tstamp diff;
3527 rtmn_diff = ev_rt_now - mn_now; 3988 rtmn_diff = ev_rt_now - mn_now;
3528 3989
3529 diff = odiff - rtmn_diff; 3990 diff = odiff - rtmn_diff;
3530 3991
3531 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)))
3532 return; /* all is well */ 3993 return; /* all is well */
3533 3994
3534 ev_rt_now = ev_time (); 3995 ev_rt_now = ev_time ();
3535 mn_now = get_clock (); 3996 mn_now = get_clock ();
3536 now_floor = mn_now; 3997 now_floor = mn_now;
… …
3545 else 4006 else
3546#endif 4007#endif
3547 { 4008 {
3548 ev_rt_now = ev_time (); 4009 ev_rt_now = ev_time ();
3549 4010
3550 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)))
3551 { 4012 {
3552 /* 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 */
3553 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4014 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3554#if EV_PERIODIC_ENABLE 4015#if EV_PERIODIC_ENABLE
3555 periodics_reschedule (EV_A); 4016 periodics_reschedule (EV_A);
… …
3578#if EV_VERIFY >= 2 4039#if EV_VERIFY >= 2
3579 ev_verify (EV_A); 4040 ev_verify (EV_A);
3580#endif 4041#endif
3581 4042
3582#ifndef _WIN32 4043#ifndef _WIN32
3583 if (expect_false (curpid)) /* penalise the forking check even more */ 4044 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3584 if (expect_false (getpid () != curpid)) 4045 if (ecb_expect_false (getpid () != curpid))
3585 { 4046 {
3586 curpid = getpid (); 4047 curpid = getpid ();
3587 postfork = 1; 4048 postfork = 1;
3588 } 4049 }
3589#endif 4050#endif
3590 4051
3591#if EV_FORK_ENABLE 4052#if EV_FORK_ENABLE
3592 /* we might have forked, so queue fork handlers */ 4053 /* we might have forked, so queue fork handlers */
3593 if (expect_false (postfork)) 4054 if (ecb_expect_false (postfork))
3594 if (forkcnt) 4055 if (forkcnt)
3595 { 4056 {
3596 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4057 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3597 EV_INVOKE_PENDING; 4058 EV_INVOKE_PENDING;
3598 } 4059 }
3599#endif 4060#endif
3600 4061
3601#if EV_PREPARE_ENABLE 4062#if EV_PREPARE_ENABLE
3602 /* queue prepare watchers (and execute them) */ 4063 /* queue prepare watchers (and execute them) */
3603 if (expect_false (preparecnt)) 4064 if (ecb_expect_false (preparecnt))
3604 { 4065 {
3605 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4066 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3606 EV_INVOKE_PENDING; 4067 EV_INVOKE_PENDING;
3607 } 4068 }
3608#endif 4069#endif
3609 4070
3610 if (expect_false (loop_done)) 4071 if (ecb_expect_false (loop_done))
3611 break; 4072 break;
3612 4073
3613 /* we might have forked, so reify kernel state if necessary */ 4074 /* we might have forked, so reify kernel state if necessary */
3614 if (expect_false (postfork)) 4075 if (ecb_expect_false (postfork))
3615 loop_fork (EV_A); 4076 loop_fork (EV_A);
3616 4077
3617 /* update fd-related kernel structures */ 4078 /* update fd-related kernel structures */
3618 fd_reify (EV_A); 4079 fd_reify (EV_A);
3619 4080
… …
3624 4085
3625 /* remember old timestamp for io_blocktime calculation */ 4086 /* remember old timestamp for io_blocktime calculation */
3626 ev_tstamp prev_mn_now = mn_now; 4087 ev_tstamp prev_mn_now = mn_now;
3627 4088
3628 /* update time to cancel out callback processing overhead */ 4089 /* update time to cancel out callback processing overhead */
3629 time_update (EV_A_ 1e100); 4090 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3630 4091
3631 /* from now on, we want a pipe-wake-up */ 4092 /* from now on, we want a pipe-wake-up */
3632 pipe_write_wanted = 1; 4093 pipe_write_wanted = 1;
3633 4094
3634 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 */
3635 4096
3636 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4097 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3637 { 4098 {
3638 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
3639 4116
3640 if (timercnt) 4117 if (timercnt)
3641 { 4118 {
3642 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4119 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3643 if (waittime > to) waittime = to; 4120 if (waittime > to) waittime = to;
… …
3650 if (waittime > to) waittime = to; 4127 if (waittime > to) waittime = to;
3651 } 4128 }
3652#endif 4129#endif
3653 4130
3654 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4131 /* don't let timeouts decrease the waittime below timeout_blocktime */
3655 if (expect_false (waittime < timeout_blocktime)) 4132 if (ecb_expect_false (waittime < timeout_blocktime))
3656 waittime = timeout_blocktime; 4133 waittime = timeout_blocktime;
3657 4134
3658 /* at this point, we NEED to wait, so we have to ensure */ 4135 /* now there are two more special cases left, either we have
3659 /* 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 */
3660 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.)
3661 waittime = backend_mintime; 4143 : backend_mintime;
3662 4144
3663 /* extra check because io_blocktime is commonly 0 */ 4145 /* extra check because io_blocktime is commonly 0 */
3664 if (expect_false (io_blocktime)) 4146 if (ecb_expect_false (io_blocktime))
3665 { 4147 {
3666 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4148 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3667 4149
3668 if (sleeptime > waittime - backend_mintime) 4150 if (sleeptime > waittime - backend_mintime)
3669 sleeptime = waittime - backend_mintime; 4151 sleeptime = waittime - backend_mintime;
3670 4152
3671 if (expect_true (sleeptime > 0.)) 4153 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3672 { 4154 {
3673 ev_sleep (sleeptime); 4155 ev_sleep (sleeptime);
3674 waittime -= sleeptime; 4156 waittime -= sleeptime;
3675 } 4157 }
3676 } 4158 }
… …
3690 { 4172 {
3691 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)));
3692 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4174 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3693 } 4175 }
3694 4176
3695
3696 /* update ev_rt_now, do magic */ 4177 /* update ev_rt_now, do magic */
3697 time_update (EV_A_ waittime + sleeptime); 4178 time_update (EV_A_ waittime + sleeptime);
3698 } 4179 }
3699 4180
3700 /* queue pending timers and reschedule them */ 4181 /* queue pending timers and reschedule them */
… …
3708 idle_reify (EV_A); 4189 idle_reify (EV_A);
3709#endif 4190#endif
3710 4191
3711#if EV_CHECK_ENABLE 4192#if EV_CHECK_ENABLE
3712 /* queue check watchers, to be executed first */ 4193 /* queue check watchers, to be executed first */
3713 if (expect_false (checkcnt)) 4194 if (ecb_expect_false (checkcnt))
3714 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4195 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3715#endif 4196#endif
3716 4197
3717 EV_INVOKE_PENDING; 4198 EV_INVOKE_PENDING;
3718 } 4199 }
3719 while (expect_true ( 4200 while (ecb_expect_true (
3720 activecnt 4201 activecnt
3721 && !loop_done 4202 && !loop_done
3722 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4203 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3723 )); 4204 ));
3724 4205
… …
3731 4212
3732 return activecnt; 4213 return activecnt;
3733} 4214}
3734 4215
3735void 4216void
3736ev_break (EV_P_ int how) EV_THROW 4217ev_break (EV_P_ int how) EV_NOEXCEPT
3737{ 4218{
3738 loop_done = how; 4219 loop_done = how;
3739} 4220}
3740 4221
3741void 4222void
3742ev_ref (EV_P) EV_THROW 4223ev_ref (EV_P) EV_NOEXCEPT
3743{ 4224{
3744 ++activecnt; 4225 ++activecnt;
3745} 4226}
3746 4227
3747void 4228void
3748ev_unref (EV_P) EV_THROW 4229ev_unref (EV_P) EV_NOEXCEPT
3749{ 4230{
3750 --activecnt; 4231 --activecnt;
3751} 4232}
3752 4233
3753void 4234void
3754ev_now_update (EV_P) EV_THROW 4235ev_now_update (EV_P) EV_NOEXCEPT
3755{ 4236{
3756 time_update (EV_A_ 1e100); 4237 time_update (EV_A_ EV_TSTAMP_HUGE);
3757} 4238}
3758 4239
3759void 4240void
3760ev_suspend (EV_P) EV_THROW 4241ev_suspend (EV_P) EV_NOEXCEPT
3761{ 4242{
3762 ev_now_update (EV_A); 4243 ev_now_update (EV_A);
3763} 4244}
3764 4245
3765void 4246void
3766ev_resume (EV_P) EV_THROW 4247ev_resume (EV_P) EV_NOEXCEPT
3767{ 4248{
3768 ev_tstamp mn_prev = mn_now; 4249 ev_tstamp mn_prev = mn_now;
3769 4250
3770 ev_now_update (EV_A); 4251 ev_now_update (EV_A);
3771 timers_reschedule (EV_A_ mn_now - mn_prev); 4252 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3788inline_size void 4269inline_size void
3789wlist_del (WL *head, WL elem) 4270wlist_del (WL *head, WL elem)
3790{ 4271{
3791 while (*head) 4272 while (*head)
3792 { 4273 {
3793 if (expect_true (*head == elem)) 4274 if (ecb_expect_true (*head == elem))
3794 { 4275 {
3795 *head = elem->next; 4276 *head = elem->next;
3796 break; 4277 break;
3797 } 4278 }
3798 4279
… …
3810 w->pending = 0; 4291 w->pending = 0;
3811 } 4292 }
3812} 4293}
3813 4294
3814int 4295int
3815ev_clear_pending (EV_P_ void *w) EV_THROW 4296ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3816{ 4297{
3817 W w_ = (W)w; 4298 W w_ = (W)w;
3818 int pending = w_->pending; 4299 int pending = w_->pending;
3819 4300
3820 if (expect_true (pending)) 4301 if (ecb_expect_true (pending))
3821 { 4302 {
3822 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4303 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3823 p->w = (W)&pending_w; 4304 p->w = (W)&pending_w;
3824 w_->pending = 0; 4305 w_->pending = 0;
3825 return p->events; 4306 return p->events;
… …
3852 w->active = 0; 4333 w->active = 0;
3853} 4334}
3854 4335
3855/*****************************************************************************/ 4336/*****************************************************************************/
3856 4337
3857noinline 4338ecb_noinline
3858void 4339void
3859ev_io_start (EV_P_ ev_io *w) EV_THROW 4340ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3860{ 4341{
3861 int fd = w->fd; 4342 int fd = w->fd;
3862 4343
3863 if (expect_false (ev_is_active (w))) 4344 if (ecb_expect_false (ev_is_active (w)))
3864 return; 4345 return;
3865 4346
3866 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4347 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3867 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))));
3868 4349
4350#if EV_VERIFY >= 2
4351 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4352#endif
3869 EV_FREQUENT_CHECK; 4353 EV_FREQUENT_CHECK;
3870 4354
3871 ev_start (EV_A_ (W)w, 1); 4355 ev_start (EV_A_ (W)w, 1);
3872 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4356 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3873 wlist_add (&anfds[fd].head, (WL)w); 4357 wlist_add (&anfds[fd].head, (WL)w);
3874 4358
3875 /* common bug, apparently */ 4359 /* common bug, apparently */
3876 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));
3877 4361
… …
3879 w->events &= ~EV__IOFDSET; 4363 w->events &= ~EV__IOFDSET;
3880 4364
3881 EV_FREQUENT_CHECK; 4365 EV_FREQUENT_CHECK;
3882} 4366}
3883 4367
3884noinline 4368ecb_noinline
3885void 4369void
3886ev_io_stop (EV_P_ ev_io *w) EV_THROW 4370ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3887{ 4371{
3888 clear_pending (EV_A_ (W)w); 4372 clear_pending (EV_A_ (W)w);
3889 if (expect_false (!ev_is_active (w))) 4373 if (ecb_expect_false (!ev_is_active (w)))
3890 return; 4374 return;
3891 4375
3892 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));
3893 4377
4378#if EV_VERIFY >= 2
4379 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4380#endif
3894 EV_FREQUENT_CHECK; 4381 EV_FREQUENT_CHECK;
3895 4382
3896 wlist_del (&anfds[w->fd].head, (WL)w); 4383 wlist_del (&anfds[w->fd].head, (WL)w);
3897 ev_stop (EV_A_ (W)w); 4384 ev_stop (EV_A_ (W)w);
3898 4385
3899 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4386 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3900 4387
3901 EV_FREQUENT_CHECK; 4388 EV_FREQUENT_CHECK;
3902} 4389}
3903 4390
3904noinline 4391ecb_noinline
3905void 4392void
3906ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4393ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3907{ 4394{
3908 if (expect_false (ev_is_active (w))) 4395 if (ecb_expect_false (ev_is_active (w)))
3909 return; 4396 return;
3910 4397
3911 ev_at (w) += mn_now; 4398 ev_at (w) += mn_now;
3912 4399
3913 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.));
3914 4401
3915 EV_FREQUENT_CHECK; 4402 EV_FREQUENT_CHECK;
3916 4403
3917 ++timercnt; 4404 ++timercnt;
3918 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4405 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3919 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4406 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3920 ANHE_w (timers [ev_active (w)]) = (WT)w; 4407 ANHE_w (timers [ev_active (w)]) = (WT)w;
3921 ANHE_at_cache (timers [ev_active (w)]); 4408 ANHE_at_cache (timers [ev_active (w)]);
3922 upheap (timers, ev_active (w)); 4409 upheap (timers, ev_active (w));
3923 4410
3924 EV_FREQUENT_CHECK; 4411 EV_FREQUENT_CHECK;
3925 4412
3926 /*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));*/
3927} 4414}
3928 4415
3929noinline 4416ecb_noinline
3930void 4417void
3931ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4418ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3932{ 4419{
3933 clear_pending (EV_A_ (W)w); 4420 clear_pending (EV_A_ (W)w);
3934 if (expect_false (!ev_is_active (w))) 4421 if (ecb_expect_false (!ev_is_active (w)))
3935 return; 4422 return;
3936 4423
3937 EV_FREQUENT_CHECK; 4424 EV_FREQUENT_CHECK;
3938 4425
3939 { 4426 {
… …
3941 4428
3942 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));
3943 4430
3944 --timercnt; 4431 --timercnt;
3945 4432
3946 if (expect_true (active < timercnt + HEAP0)) 4433 if (ecb_expect_true (active < timercnt + HEAP0))
3947 { 4434 {
3948 timers [active] = timers [timercnt + HEAP0]; 4435 timers [active] = timers [timercnt + HEAP0];
3949 adjustheap (timers, timercnt, active); 4436 adjustheap (timers, timercnt, active);
3950 } 4437 }
3951 } 4438 }
… …
3955 ev_stop (EV_A_ (W)w); 4442 ev_stop (EV_A_ (W)w);
3956 4443
3957 EV_FREQUENT_CHECK; 4444 EV_FREQUENT_CHECK;
3958} 4445}
3959 4446
3960noinline 4447ecb_noinline
3961void 4448void
3962ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4449ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3963{ 4450{
3964 EV_FREQUENT_CHECK; 4451 EV_FREQUENT_CHECK;
3965 4452
3966 clear_pending (EV_A_ (W)w); 4453 clear_pending (EV_A_ (W)w);
3967 4454
… …
3984 4471
3985 EV_FREQUENT_CHECK; 4472 EV_FREQUENT_CHECK;
3986} 4473}
3987 4474
3988ev_tstamp 4475ev_tstamp
3989ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4476ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3990{ 4477{
3991 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.));
3992} 4479}
3993 4480
3994#if EV_PERIODIC_ENABLE 4481#if EV_PERIODIC_ENABLE
3995noinline 4482ecb_noinline
3996void 4483void
3997ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4484ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3998{ 4485{
3999 if (expect_false (ev_is_active (w))) 4486 if (ecb_expect_false (ev_is_active (w)))
4000 return; 4487 return;
4488
4489#if EV_USE_TIMERFD
4490 if (timerfd == -2)
4491 evtimerfd_init (EV_A);
4492#endif
4001 4493
4002 if (w->reschedule_cb) 4494 if (w->reschedule_cb)
4003 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4495 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4004 else if (w->interval) 4496 else if (w->interval)
4005 { 4497 {
… …
4011 4503
4012 EV_FREQUENT_CHECK; 4504 EV_FREQUENT_CHECK;
4013 4505
4014 ++periodiccnt; 4506 ++periodiccnt;
4015 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4507 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4016 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4508 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4017 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4509 ANHE_w (periodics [ev_active (w)]) = (WT)w;
4018 ANHE_at_cache (periodics [ev_active (w)]); 4510 ANHE_at_cache (periodics [ev_active (w)]);
4019 upheap (periodics, ev_active (w)); 4511 upheap (periodics, ev_active (w));
4020 4512
4021 EV_FREQUENT_CHECK; 4513 EV_FREQUENT_CHECK;
4022 4514
4023 /*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));*/
4024} 4516}
4025 4517
4026noinline 4518ecb_noinline
4027void 4519void
4028ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4520ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4029{ 4521{
4030 clear_pending (EV_A_ (W)w); 4522 clear_pending (EV_A_ (W)w);
4031 if (expect_false (!ev_is_active (w))) 4523 if (ecb_expect_false (!ev_is_active (w)))
4032 return; 4524 return;
4033 4525
4034 EV_FREQUENT_CHECK; 4526 EV_FREQUENT_CHECK;
4035 4527
4036 { 4528 {
… …
4038 4530
4039 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));
4040 4532
4041 --periodiccnt; 4533 --periodiccnt;
4042 4534
4043 if (expect_true (active < periodiccnt + HEAP0)) 4535 if (ecb_expect_true (active < periodiccnt + HEAP0))
4044 { 4536 {
4045 periodics [active] = periodics [periodiccnt + HEAP0]; 4537 periodics [active] = periodics [periodiccnt + HEAP0];
4046 adjustheap (periodics, periodiccnt, active); 4538 adjustheap (periodics, periodiccnt, active);
4047 } 4539 }
4048 } 4540 }
… …
4050 ev_stop (EV_A_ (W)w); 4542 ev_stop (EV_A_ (W)w);
4051 4543
4052 EV_FREQUENT_CHECK; 4544 EV_FREQUENT_CHECK;
4053} 4545}
4054 4546
4055noinline 4547ecb_noinline
4056void 4548void
4057ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4549ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4058{ 4550{
4059 /* TODO: use adjustheap and recalculation */ 4551 /* TODO: use adjustheap and recalculation */
4060 ev_periodic_stop (EV_A_ w); 4552 ev_periodic_stop (EV_A_ w);
4061 ev_periodic_start (EV_A_ w); 4553 ev_periodic_start (EV_A_ w);
4062} 4554}
… …
4066# define SA_RESTART 0 4558# define SA_RESTART 0
4067#endif 4559#endif
4068 4560
4069#if EV_SIGNAL_ENABLE 4561#if EV_SIGNAL_ENABLE
4070 4562
4071noinline 4563ecb_noinline
4072void 4564void
4073ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4565ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4074{ 4566{
4075 if (expect_false (ev_is_active (w))) 4567 if (ecb_expect_false (ev_is_active (w)))
4076 return; 4568 return;
4077 4569
4078 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));
4079 4571
4080#if EV_MULTIPLICITY 4572#if EV_MULTIPLICITY
… …
4149 } 4641 }
4150 4642
4151 EV_FREQUENT_CHECK; 4643 EV_FREQUENT_CHECK;
4152} 4644}
4153 4645
4154noinline 4646ecb_noinline
4155void 4647void
4156ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4648ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4157{ 4649{
4158 clear_pending (EV_A_ (W)w); 4650 clear_pending (EV_A_ (W)w);
4159 if (expect_false (!ev_is_active (w))) 4651 if (ecb_expect_false (!ev_is_active (w)))
4160 return; 4652 return;
4161 4653
4162 EV_FREQUENT_CHECK; 4654 EV_FREQUENT_CHECK;
4163 4655
4164 wlist_del (&signals [w->signum - 1].head, (WL)w); 4656 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4192#endif 4684#endif
4193 4685
4194#if EV_CHILD_ENABLE 4686#if EV_CHILD_ENABLE
4195 4687
4196void 4688void
4197ev_child_start (EV_P_ ev_child *w) EV_THROW 4689ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4198{ 4690{
4199#if EV_MULTIPLICITY 4691#if EV_MULTIPLICITY
4200 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));
4201#endif 4693#endif
4202 if (expect_false (ev_is_active (w))) 4694 if (ecb_expect_false (ev_is_active (w)))
4203 return; 4695 return;
4204 4696
4205 EV_FREQUENT_CHECK; 4697 EV_FREQUENT_CHECK;
4206 4698
4207 ev_start (EV_A_ (W)w, 1); 4699 ev_start (EV_A_ (W)w, 1);
… …
4209 4701
4210 EV_FREQUENT_CHECK; 4702 EV_FREQUENT_CHECK;
4211} 4703}
4212 4704
4213void 4705void
4214ev_child_stop (EV_P_ ev_child *w) EV_THROW 4706ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4215{ 4707{
4216 clear_pending (EV_A_ (W)w); 4708 clear_pending (EV_A_ (W)w);
4217 if (expect_false (!ev_is_active (w))) 4709 if (ecb_expect_false (!ev_is_active (w)))
4218 return; 4710 return;
4219 4711
4220 EV_FREQUENT_CHECK; 4712 EV_FREQUENT_CHECK;
4221 4713
4222 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4714 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4236 4728
4237#define DEF_STAT_INTERVAL 5.0074891 4729#define DEF_STAT_INTERVAL 5.0074891
4238#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4730#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4239#define MIN_STAT_INTERVAL 0.1074891 4731#define MIN_STAT_INTERVAL 0.1074891
4240 4732
4241noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4733ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4242 4734
4243#if EV_USE_INOTIFY 4735#if EV_USE_INOTIFY
4244 4736
4245/* 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 */
4246# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4738# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4247 4739
4248noinline 4740ecb_noinline
4249static void 4741static void
4250infy_add (EV_P_ ev_stat *w) 4742infy_add (EV_P_ ev_stat *w)
4251{ 4743{
4252 w->wd = inotify_add_watch (fs_fd, w->path, 4744 w->wd = inotify_add_watch (fs_fd, w->path,
4253 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4745 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4318 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4810 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4319 ev_timer_again (EV_A_ &w->timer); 4811 ev_timer_again (EV_A_ &w->timer);
4320 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4812 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4321} 4813}
4322 4814
4323noinline 4815ecb_noinline
4324static void 4816static void
4325infy_del (EV_P_ ev_stat *w) 4817infy_del (EV_P_ ev_stat *w)
4326{ 4818{
4327 int slot; 4819 int slot;
4328 int wd = w->wd; 4820 int wd = w->wd;
… …
4336 4828
4337 /* remove this watcher, if others are watching it, they will rearm */ 4829 /* remove this watcher, if others are watching it, they will rearm */
4338 inotify_rm_watch (fs_fd, wd); 4830 inotify_rm_watch (fs_fd, wd);
4339} 4831}
4340 4832
4341noinline 4833ecb_noinline
4342static void 4834static void
4343infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4835infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4344{ 4836{
4345 if (slot < 0) 4837 if (slot < 0)
4346 /* overflow, need to check for all hash slots */ 4838 /* overflow, need to check for all hash slots */
… …
4484#else 4976#else
4485# define EV_LSTAT(p,b) lstat (p, b) 4977# define EV_LSTAT(p,b) lstat (p, b)
4486#endif 4978#endif
4487 4979
4488void 4980void
4489ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4981ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4490{ 4982{
4491 if (lstat (w->path, &w->attr) < 0) 4983 if (lstat (w->path, &w->attr) < 0)
4492 w->attr.st_nlink = 0; 4984 w->attr.st_nlink = 0;
4493 else if (!w->attr.st_nlink) 4985 else if (!w->attr.st_nlink)
4494 w->attr.st_nlink = 1; 4986 w->attr.st_nlink = 1;
4495} 4987}
4496 4988
4497noinline 4989ecb_noinline
4498static void 4990static void
4499stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4991stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4500{ 4992{
4501 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4993 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4502 4994
… …
4534 ev_feed_event (EV_A_ w, EV_STAT); 5026 ev_feed_event (EV_A_ w, EV_STAT);
4535 } 5027 }
4536} 5028}
4537 5029
4538void 5030void
4539ev_stat_start (EV_P_ ev_stat *w) EV_THROW 5031ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4540{ 5032{
4541 if (expect_false (ev_is_active (w))) 5033 if (ecb_expect_false (ev_is_active (w)))
4542 return; 5034 return;
4543 5035
4544 ev_stat_stat (EV_A_ w); 5036 ev_stat_stat (EV_A_ w);
4545 5037
4546 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5038 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4565 5057
4566 EV_FREQUENT_CHECK; 5058 EV_FREQUENT_CHECK;
4567} 5059}
4568 5060
4569void 5061void
4570ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 5062ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4571{ 5063{
4572 clear_pending (EV_A_ (W)w); 5064 clear_pending (EV_A_ (W)w);
4573 if (expect_false (!ev_is_active (w))) 5065 if (ecb_expect_false (!ev_is_active (w)))
4574 return; 5066 return;
4575 5067
4576 EV_FREQUENT_CHECK; 5068 EV_FREQUENT_CHECK;
4577 5069
4578#if EV_USE_INOTIFY 5070#if EV_USE_INOTIFY
… …
4591} 5083}
4592#endif 5084#endif
4593 5085
4594#if EV_IDLE_ENABLE 5086#if EV_IDLE_ENABLE
4595void 5087void
4596ev_idle_start (EV_P_ ev_idle *w) EV_THROW 5088ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4597{ 5089{
4598 if (expect_false (ev_is_active (w))) 5090 if (ecb_expect_false (ev_is_active (w)))
4599 return; 5091 return;
4600 5092
4601 pri_adjust (EV_A_ (W)w); 5093 pri_adjust (EV_A_ (W)w);
4602 5094
4603 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
… …
4606 int active = ++idlecnt [ABSPRI (w)]; 5098 int active = ++idlecnt [ABSPRI (w)];
4607 5099
4608 ++idleall; 5100 ++idleall;
4609 ev_start (EV_A_ (W)w, active); 5101 ev_start (EV_A_ (W)w, active);
4610 5102
4611 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);
4612 idles [ABSPRI (w)][active - 1] = w; 5104 idles [ABSPRI (w)][active - 1] = w;
4613 } 5105 }
4614 5106
4615 EV_FREQUENT_CHECK; 5107 EV_FREQUENT_CHECK;
4616} 5108}
4617 5109
4618void 5110void
4619ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 5111ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4620{ 5112{
4621 clear_pending (EV_A_ (W)w); 5113 clear_pending (EV_A_ (W)w);
4622 if (expect_false (!ev_is_active (w))) 5114 if (ecb_expect_false (!ev_is_active (w)))
4623 return; 5115 return;
4624 5116
4625 EV_FREQUENT_CHECK; 5117 EV_FREQUENT_CHECK;
4626 5118
4627 { 5119 {
… …
4638} 5130}
4639#endif 5131#endif
4640 5132
4641#if EV_PREPARE_ENABLE 5133#if EV_PREPARE_ENABLE
4642void 5134void
4643ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 5135ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4644{ 5136{
4645 if (expect_false (ev_is_active (w))) 5137 if (ecb_expect_false (ev_is_active (w)))
4646 return; 5138 return;
4647 5139
4648 EV_FREQUENT_CHECK; 5140 EV_FREQUENT_CHECK;
4649 5141
4650 ev_start (EV_A_ (W)w, ++preparecnt); 5142 ev_start (EV_A_ (W)w, ++preparecnt);
4651 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 5143 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4652 prepares [preparecnt - 1] = w; 5144 prepares [preparecnt - 1] = w;
4653 5145
4654 EV_FREQUENT_CHECK; 5146 EV_FREQUENT_CHECK;
4655} 5147}
4656 5148
4657void 5149void
4658ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 5150ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4659{ 5151{
4660 clear_pending (EV_A_ (W)w); 5152 clear_pending (EV_A_ (W)w);
4661 if (expect_false (!ev_is_active (w))) 5153 if (ecb_expect_false (!ev_is_active (w)))
4662 return; 5154 return;
4663 5155
4664 EV_FREQUENT_CHECK; 5156 EV_FREQUENT_CHECK;
4665 5157
4666 { 5158 {
… …
4676} 5168}
4677#endif 5169#endif
4678 5170
4679#if EV_CHECK_ENABLE 5171#if EV_CHECK_ENABLE
4680void 5172void
4681ev_check_start (EV_P_ ev_check *w) EV_THROW 5173ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4682{ 5174{
4683 if (expect_false (ev_is_active (w))) 5175 if (ecb_expect_false (ev_is_active (w)))
4684 return; 5176 return;
4685 5177
4686 EV_FREQUENT_CHECK; 5178 EV_FREQUENT_CHECK;
4687 5179
4688 ev_start (EV_A_ (W)w, ++checkcnt); 5180 ev_start (EV_A_ (W)w, ++checkcnt);
4689 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5181 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4690 checks [checkcnt - 1] = w; 5182 checks [checkcnt - 1] = w;
4691 5183
4692 EV_FREQUENT_CHECK; 5184 EV_FREQUENT_CHECK;
4693} 5185}
4694 5186
4695void 5187void
4696ev_check_stop (EV_P_ ev_check *w) EV_THROW 5188ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4697{ 5189{
4698 clear_pending (EV_A_ (W)w); 5190 clear_pending (EV_A_ (W)w);
4699 if (expect_false (!ev_is_active (w))) 5191 if (ecb_expect_false (!ev_is_active (w)))
4700 return; 5192 return;
4701 5193
4702 EV_FREQUENT_CHECK; 5194 EV_FREQUENT_CHECK;
4703 5195
4704 { 5196 {
… …
4713 EV_FREQUENT_CHECK; 5205 EV_FREQUENT_CHECK;
4714} 5206}
4715#endif 5207#endif
4716 5208
4717#if EV_EMBED_ENABLE 5209#if EV_EMBED_ENABLE
4718noinline 5210ecb_noinline
4719void 5211void
4720ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5212ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4721{ 5213{
4722 ev_run (w->other, EVRUN_NOWAIT); 5214 ev_run (w->other, EVRUN_NOWAIT);
4723} 5215}
4724 5216
4725static void 5217static void
… …
4747 ev_run (EV_A_ EVRUN_NOWAIT); 5239 ev_run (EV_A_ EVRUN_NOWAIT);
4748 } 5240 }
4749 } 5241 }
4750} 5242}
4751 5243
5244#if EV_FORK_ENABLE
4752static void 5245static void
4753embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5246embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4754{ 5247{
4755 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));
4756 5249
… …
4763 ev_run (EV_A_ EVRUN_NOWAIT); 5256 ev_run (EV_A_ EVRUN_NOWAIT);
4764 } 5257 }
4765 5258
4766 ev_embed_start (EV_A_ w); 5259 ev_embed_start (EV_A_ w);
4767} 5260}
5261#endif
4768 5262
4769#if 0 5263#if 0
4770static void 5264static void
4771embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5265embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4772{ 5266{
4773 ev_idle_stop (EV_A_ idle); 5267 ev_idle_stop (EV_A_ idle);
4774} 5268}
4775#endif 5269#endif
4776 5270
4777void 5271void
4778ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5272ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4779{ 5273{
4780 if (expect_false (ev_is_active (w))) 5274 if (ecb_expect_false (ev_is_active (w)))
4781 return; 5275 return;
4782 5276
4783 { 5277 {
4784 EV_P = w->other; 5278 EV_P = w->other;
4785 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 ()));
… …
4793 5287
4794 ev_prepare_init (&w->prepare, embed_prepare_cb); 5288 ev_prepare_init (&w->prepare, embed_prepare_cb);
4795 ev_set_priority (&w->prepare, EV_MINPRI); 5289 ev_set_priority (&w->prepare, EV_MINPRI);
4796 ev_prepare_start (EV_A_ &w->prepare); 5290 ev_prepare_start (EV_A_ &w->prepare);
4797 5291
5292#if EV_FORK_ENABLE
4798 ev_fork_init (&w->fork, embed_fork_cb); 5293 ev_fork_init (&w->fork, embed_fork_cb);
4799 ev_fork_start (EV_A_ &w->fork); 5294 ev_fork_start (EV_A_ &w->fork);
5295#endif
4800 5296
4801 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5297 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4802 5298
4803 ev_start (EV_A_ (W)w, 1); 5299 ev_start (EV_A_ (W)w, 1);
4804 5300
4805 EV_FREQUENT_CHECK; 5301 EV_FREQUENT_CHECK;
4806} 5302}
4807 5303
4808void 5304void
4809ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5305ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4810{ 5306{
4811 clear_pending (EV_A_ (W)w); 5307 clear_pending (EV_A_ (W)w);
4812 if (expect_false (!ev_is_active (w))) 5308 if (ecb_expect_false (!ev_is_active (w)))
4813 return; 5309 return;
4814 5310
4815 EV_FREQUENT_CHECK; 5311 EV_FREQUENT_CHECK;
4816 5312
4817 ev_io_stop (EV_A_ &w->io); 5313 ev_io_stop (EV_A_ &w->io);
4818 ev_prepare_stop (EV_A_ &w->prepare); 5314 ev_prepare_stop (EV_A_ &w->prepare);
5315#if EV_FORK_ENABLE
4819 ev_fork_stop (EV_A_ &w->fork); 5316 ev_fork_stop (EV_A_ &w->fork);
5317#endif
4820 5318
4821 ev_stop (EV_A_ (W)w); 5319 ev_stop (EV_A_ (W)w);
4822 5320
4823 EV_FREQUENT_CHECK; 5321 EV_FREQUENT_CHECK;
4824} 5322}
4825#endif 5323#endif
4826 5324
4827#if EV_FORK_ENABLE 5325#if EV_FORK_ENABLE
4828void 5326void
4829ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5327ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4830{ 5328{
4831 if (expect_false (ev_is_active (w))) 5329 if (ecb_expect_false (ev_is_active (w)))
4832 return; 5330 return;
4833 5331
4834 EV_FREQUENT_CHECK; 5332 EV_FREQUENT_CHECK;
4835 5333
4836 ev_start (EV_A_ (W)w, ++forkcnt); 5334 ev_start (EV_A_ (W)w, ++forkcnt);
4837 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5335 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4838 forks [forkcnt - 1] = w; 5336 forks [forkcnt - 1] = w;
4839 5337
4840 EV_FREQUENT_CHECK; 5338 EV_FREQUENT_CHECK;
4841} 5339}
4842 5340
4843void 5341void
4844ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5342ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4845{ 5343{
4846 clear_pending (EV_A_ (W)w); 5344 clear_pending (EV_A_ (W)w);
4847 if (expect_false (!ev_is_active (w))) 5345 if (ecb_expect_false (!ev_is_active (w)))
4848 return; 5346 return;
4849 5347
4850 EV_FREQUENT_CHECK; 5348 EV_FREQUENT_CHECK;
4851 5349
4852 { 5350 {
… …
4862} 5360}
4863#endif 5361#endif
4864 5362
4865#if EV_CLEANUP_ENABLE 5363#if EV_CLEANUP_ENABLE
4866void 5364void
4867ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5365ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4868{ 5366{
4869 if (expect_false (ev_is_active (w))) 5367 if (ecb_expect_false (ev_is_active (w)))
4870 return; 5368 return;
4871 5369
4872 EV_FREQUENT_CHECK; 5370 EV_FREQUENT_CHECK;
4873 5371
4874 ev_start (EV_A_ (W)w, ++cleanupcnt); 5372 ev_start (EV_A_ (W)w, ++cleanupcnt);
4875 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5373 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4876 cleanups [cleanupcnt - 1] = w; 5374 cleanups [cleanupcnt - 1] = w;
4877 5375
4878 /* cleanup watchers should never keep a refcount on the loop */ 5376 /* cleanup watchers should never keep a refcount on the loop */
4879 ev_unref (EV_A); 5377 ev_unref (EV_A);
4880 EV_FREQUENT_CHECK; 5378 EV_FREQUENT_CHECK;
4881} 5379}
4882 5380
4883void 5381void
4884ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5382ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4885{ 5383{
4886 clear_pending (EV_A_ (W)w); 5384 clear_pending (EV_A_ (W)w);
4887 if (expect_false (!ev_is_active (w))) 5385 if (ecb_expect_false (!ev_is_active (w)))
4888 return; 5386 return;
4889 5387
4890 EV_FREQUENT_CHECK; 5388 EV_FREQUENT_CHECK;
4891 ev_ref (EV_A); 5389 ev_ref (EV_A);
4892 5390
… …
4903} 5401}
4904#endif 5402#endif
4905 5403
4906#if EV_ASYNC_ENABLE 5404#if EV_ASYNC_ENABLE
4907void 5405void
4908ev_async_start (EV_P_ ev_async *w) EV_THROW 5406ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4909{ 5407{
4910 if (expect_false (ev_is_active (w))) 5408 if (ecb_expect_false (ev_is_active (w)))
4911 return; 5409 return;
4912 5410
4913 w->sent = 0; 5411 w->sent = 0;
4914 5412
4915 evpipe_init (EV_A); 5413 evpipe_init (EV_A);
4916 5414
4917 EV_FREQUENT_CHECK; 5415 EV_FREQUENT_CHECK;
4918 5416
4919 ev_start (EV_A_ (W)w, ++asynccnt); 5417 ev_start (EV_A_ (W)w, ++asynccnt);
4920 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5418 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4921 asyncs [asynccnt - 1] = w; 5419 asyncs [asynccnt - 1] = w;
4922 5420
4923 EV_FREQUENT_CHECK; 5421 EV_FREQUENT_CHECK;
4924} 5422}
4925 5423
4926void 5424void
4927ev_async_stop (EV_P_ ev_async *w) EV_THROW 5425ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4928{ 5426{
4929 clear_pending (EV_A_ (W)w); 5427 clear_pending (EV_A_ (W)w);
4930 if (expect_false (!ev_is_active (w))) 5428 if (ecb_expect_false (!ev_is_active (w)))
4931 return; 5429 return;
4932 5430
4933 EV_FREQUENT_CHECK; 5431 EV_FREQUENT_CHECK;
4934 5432
4935 { 5433 {
… …
4943 5441
4944 EV_FREQUENT_CHECK; 5442 EV_FREQUENT_CHECK;
4945} 5443}
4946 5444
4947void 5445void
4948ev_async_send (EV_P_ ev_async *w) EV_THROW 5446ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4949{ 5447{
4950 w->sent = 1; 5448 w->sent = 1;
4951 evpipe_write (EV_A_ &async_pending); 5449 evpipe_write (EV_A_ &async_pending);
4952} 5450}
4953#endif 5451#endif
… …
4990 5488
4991 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));
4992} 5490}
4993 5491
4994void 5492void
4995ev_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
4996{ 5494{
4997 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));
4998
4999 if (expect_false (!once))
5000 {
5001 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
5002 return;
5003 }
5004 5496
5005 once->cb = cb; 5497 once->cb = cb;
5006 once->arg = arg; 5498 once->arg = arg;
5007 5499
5008 ev_init (&once->io, once_cb_io); 5500 ev_init (&once->io, once_cb_io);
… …
5023/*****************************************************************************/ 5515/*****************************************************************************/
5024 5516
5025#if EV_WALK_ENABLE 5517#if EV_WALK_ENABLE
5026ecb_cold 5518ecb_cold
5027void 5519void
5028ev_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
5029{ 5521{
5030 int i, j; 5522 int i, j;
5031 ev_watcher_list *wl, *wn; 5523 ev_watcher_list *wl, *wn;
5032 5524
5033 if (types & (EV_IO | EV_EMBED)) 5525 if (types & (EV_IO | EV_EMBED))

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