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Comparing libev/ev.c (file contents):
Revision 1.498 by root, Wed Jun 26 00:01:46 2019 UTC vs.
Revision 1.536 by root, Wed Aug 10 16:50:05 2022 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007-2019 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
… …
117# define EV_USE_EPOLL 0 121# define EV_USE_EPOLL 0
118# endif 122# endif
119 123
120# if HAVE_LINUX_AIO_ABI_H 124# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO 125# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS 126# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
123# endif 127# endif
124# else 128# else
125# undef EV_USE_LINUXAIO 129# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0 130# define EV_USE_LINUXAIO 0
127# endif 131# endif
128 132
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
129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 142# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
130# ifndef EV_USE_KQUEUE 143# ifndef EV_USE_KQUEUE
131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 144# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
132# endif 145# endif
133# else 146# else
… …
168# endif 181# endif
169# else 182# else
170# undef EV_USE_EVENTFD 183# undef EV_USE_EVENTFD
171# define EV_USE_EVENTFD 0 184# define EV_USE_EVENTFD 0
172# endif 185# endif
173 186
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
194# endif
195
174#endif 196#endif
175 197
176/* OS X, in its infinite idiocy, actually HARDCODES 198/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains, 199 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were 200 * OS X engineers apparently have a vacuum. Or maybe they were
… …
326# define EV_USE_PORT 0 348# define EV_USE_PORT 0
327#endif 349#endif
328 350
329#ifndef EV_USE_LINUXAIO 351#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ 352# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1 353# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
332# else 354# else
333# define EV_USE_LINUXAIO 0 355# 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
334# endif 364# endif
335#endif 365#endif
336 366
337#ifndef EV_USE_INOTIFY 367#ifndef EV_USE_INOTIFY
338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 368# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
… …
361#ifndef EV_USE_SIGNALFD 391#ifndef EV_USE_SIGNALFD
362# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 392# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
363# define EV_USE_SIGNALFD EV_FEATURE_OS 393# define EV_USE_SIGNALFD EV_FEATURE_OS
364# else 394# else
365# 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
366# endif 404# endif
367#endif 405#endif
368 406
369#if 0 /* debugging */ 407#if 0 /* debugging */
370# define EV_VERIFY 3 408# define EV_VERIFY 3
… …
406# include <sys/syscall.h> 444# include <sys/syscall.h>
407# ifdef SYS_clock_gettime 445# ifdef SYS_clock_gettime
408# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 446# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
409# undef EV_USE_MONOTONIC 447# undef EV_USE_MONOTONIC
410# define EV_USE_MONOTONIC 1 448# define EV_USE_MONOTONIC 1
449# define EV_NEED_SYSCALL 1
411# else 450# else
412# undef EV_USE_CLOCK_SYSCALL 451# undef EV_USE_CLOCK_SYSCALL
413# define EV_USE_CLOCK_SYSCALL 0 452# define EV_USE_CLOCK_SYSCALL 0
414# endif 453# endif
415#endif 454#endif
… …
427#endif 466#endif
428 467
429#if !EV_STAT_ENABLE 468#if !EV_STAT_ENABLE
430# undef EV_USE_INOTIFY 469# undef EV_USE_INOTIFY
431# define EV_USE_INOTIFY 0 470# define EV_USE_INOTIFY 0
471#endif
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
432#endif 479#endif
433 480
434#if !EV_USE_NANOSLEEP 481#if !EV_USE_NANOSLEEP
435/* 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 */
436# if !defined _WIN32 && !defined __hpux 483# if !defined _WIN32 && !defined __hpux
… …
438# endif 485# endif
439#endif 486#endif
440 487
441#if EV_USE_LINUXAIO 488#if EV_USE_LINUXAIO
442# include <sys/syscall.h> 489# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */ 490# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
491# define EV_NEED_SYSCALL 1
492# else
444# undef EV_USE_LINUXAIO 493# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0 494# 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
446# endif 510# endif
447#endif 511#endif
448 512
449#if EV_USE_INOTIFY 513#if EV_USE_INOTIFY
450# include <sys/statfs.h> 514# include <sys/statfs.h>
… …
455# define EV_USE_INOTIFY 0 519# define EV_USE_INOTIFY 0
456# endif 520# endif
457#endif 521#endif
458 522
459#if EV_USE_EVENTFD 523#if EV_USE_EVENTFD
460/* 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 */
461# include <stdint.h> 525# include <stdint.h>
462# ifndef EFD_NONBLOCK 526# ifndef EFD_NONBLOCK
463# define EFD_NONBLOCK O_NONBLOCK 527# define EFD_NONBLOCK O_NONBLOCK
464# endif 528# endif
465# ifndef EFD_CLOEXEC 529# ifndef EFD_CLOEXEC
… …
471# endif 535# endif
472EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 536EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
473#endif 537#endif
474 538
475#if EV_USE_SIGNALFD 539#if EV_USE_SIGNALFD
476/* 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 */
477# include <stdint.h> 541# include <stdint.h>
478# ifndef SFD_NONBLOCK 542# ifndef SFD_NONBLOCK
479# define SFD_NONBLOCK O_NONBLOCK 543# define SFD_NONBLOCK O_NONBLOCK
480# endif 544# endif
481# ifndef SFD_CLOEXEC 545# ifndef SFD_CLOEXEC
… …
483# define SFD_CLOEXEC O_CLOEXEC 547# define SFD_CLOEXEC O_CLOEXEC
484# else 548# else
485# define SFD_CLOEXEC 02000000 549# define SFD_CLOEXEC 02000000
486# endif 550# endif
487# endif 551# endif
488EV_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);
489 553
490struct signalfd_siginfo 554struct signalfd_siginfo
491{ 555{
492 uint32_t ssi_signo; 556 uint32_t ssi_signo;
493 char pad[128 - sizeof (uint32_t)]; 557 char pad[128 - sizeof (uint32_t)];
494}; 558};
495#endif 559#endif
496 560
497/**/ 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/*****************************************************************************/
498 572
499#if EV_VERIFY >= 3 573#if EV_VERIFY >= 3
500# define EV_FREQUENT_CHECK ev_verify (EV_A) 574# define EV_FREQUENT_CHECK ev_verify (EV_A)
501#else 575#else
502# define EV_FREQUENT_CHECK do { } while (0) 576# define EV_FREQUENT_CHECK do { } while (0)
… …
507 * This value is good at least till the year 4000. 581 * This value is good at least till the year 4000.
508 */ 582 */
509#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 583#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
510/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 584/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
511 585
512#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) */
513#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 */
514 589
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
515#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)
516#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
517 607
518/* 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 */
519/* ECB.H BEGIN */ 609/* ECB.H BEGIN */
520/* 610/*
521 * libecb - http://software.schmorp.de/pkg/libecb 611 * libecb - http://software.schmorp.de/pkg/libecb
522 * 612 *
523 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> 613 * Copyright (©) 2009-2015,2018-2020 Marc Alexander Lehmann <libecb@schmorp.de>
524 * Copyright (©) 2011 Emanuele Giaquinta 614 * Copyright (©) 2011 Emanuele Giaquinta
525 * All rights reserved. 615 * All rights reserved.
526 * 616 *
527 * 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-
528 * tion, are permitted provided that the following conditions are met: 618 * tion, are permitted provided that the following conditions are met:
… …
559 649
560#ifndef ECB_H 650#ifndef ECB_H
561#define ECB_H 651#define ECB_H
562 652
563/* 16 bits major, 16 bits minor */ 653/* 16 bits major, 16 bits minor */
564#define ECB_VERSION 0x00010006 654#define ECB_VERSION 0x00010008
565 655
566#ifdef _WIN32 656#include <string.h> /* for memcpy */
657
658#if defined (_WIN32) && !defined (__MINGW32__)
567 typedef signed char int8_t; 659 typedef signed char int8_t;
568 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;
569 typedef signed short int16_t; 663 typedef signed short int16_t;
570 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;
571 typedef signed int int32_t; 667 typedef signed int int32_t;
572 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;
573 #if __GNUC__ 671 #if __GNUC__
574 typedef signed long long int64_t; 672 typedef signed long long int64_t;
575 typedef unsigned long long uint64_t; 673 typedef unsigned long long uint64_t;
576 #else /* _MSC_VER || __BORLANDC__ */ 674 #else /* _MSC_VER || __BORLANDC__ */
577 typedef signed __int64 int64_t; 675 typedef signed __int64 int64_t;
578 typedef unsigned __int64 uint64_t; 676 typedef unsigned __int64 uint64_t;
579 #endif 677 #endif
678 typedef int64_t int_fast64_t;
679 typedef uint64_t uint_fast64_t;
580 #ifdef _WIN64 680 #ifdef _WIN64
581 #define ECB_PTRSIZE 8 681 #define ECB_PTRSIZE 8
582 typedef uint64_t uintptr_t; 682 typedef uint64_t uintptr_t;
583 typedef int64_t intptr_t; 683 typedef int64_t intptr_t;
584 #else 684 #else
… …
595 #endif 695 #endif
596#endif 696#endif
597 697
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) 698#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) 699#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
700
701#ifndef ECB_OPTIMIZE_SIZE
702 #if __OPTIMIZE_SIZE__
703 #define ECB_OPTIMIZE_SIZE 1
704 #else
705 #define ECB_OPTIMIZE_SIZE 0
706 #endif
707#endif
600 708
601/* work around x32 idiocy by defining proper macros */ 709/* work around x32 idiocy by defining proper macros */
602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64 710#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
603 #if _ILP32 711 #if _ILP32
604 #define ECB_AMD64_X32 1 712 #define ECB_AMD64_X32 1
… …
1111ecb_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); }
1112ecb_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); }
1113ecb_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); }
1114ecb_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); }
1115 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
1116#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))
1117 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) 1263 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1118 #define ecb_bswap16(x) __builtin_bswap16 (x) 1264 #define ecb_bswap16(x) __builtin_bswap16 (x)
1119 #else 1265 #else
1120 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1266 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
… …
1191ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1337ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1192ecb_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; }
1193ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1339ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1194ecb_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; }
1195 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
1196#if ECB_GCC_VERSION(3,0) || ECB_C99 1414#if ECB_GCC_VERSION(3,0) || ECB_C99
1197 #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))
1198#else 1416#else
1199 #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)))
1200#endif 1418#endif
… …
1223 return N; 1441 return N;
1224 } 1442 }
1225#else 1443#else
1226 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1444 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1227#endif 1445#endif
1446
1447/*****************************************************************************/
1228 1448
1229ecb_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);
1230ecb_function_ ecb_const uint32_t 1450ecb_function_ ecb_const uint32_t
1231ecb_binary16_to_binary32 (uint32_t x) 1451ecb_binary16_to_binary32 (uint32_t x)
1232{ 1452{
… …
1341 || defined __sh__ \ 1561 || defined __sh__ \
1342 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ 1562 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1343 || (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__)) \
1344 || defined __aarch64__ 1564 || defined __aarch64__
1345 #define ECB_STDFP 1 1565 #define ECB_STDFP 1
1346 #include <string.h> /* for memcpy */
1347#else 1566#else
1348 #define ECB_STDFP 0 1567 #define ECB_STDFP 0
1349#endif 1568#endif
1350 1569
1351#ifndef ECB_NO_LIBM 1570#ifndef ECB_NO_LIBM
… …
1536/* ECB.H END */ 1755/* ECB.H END */
1537 1756
1538#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1757#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1539/* 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
1540 * 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
1541 * 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
1542 * libev, in which cases the memory fences become nops. 1761 * libev, in which cases the memory fences become nops.
1543 * alternatively, you can remove this #error and link against libpthread, 1762 * alternatively, you can remove this #error and link against libpthread,
1544 * which will then provide the memory fences. 1763 * which will then provide the memory fences.
1545 */ 1764 */
1546# error "memory fences not defined for your architecture, please report" 1765# error "memory fences not defined for your architecture, please report"
… …
1550# define ECB_MEMORY_FENCE do { } while (0) 1769# define ECB_MEMORY_FENCE do { } while (0)
1551# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1770# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1552# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1771# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1553#endif 1772#endif
1554 1773
1555#define expect_false(cond) ecb_expect_false (cond)
1556#define expect_true(cond) ecb_expect_true (cond)
1557#define noinline ecb_noinline
1558
1559#define inline_size ecb_inline 1774#define inline_size ecb_inline
1560 1775
1561#if EV_FEATURE_CODE 1776#if EV_FEATURE_CODE
1562# define inline_speed ecb_inline 1777# define inline_speed ecb_inline
1563#else 1778#else
1564# define inline_speed noinline static 1779# define inline_speed ecb_noinline static
1565#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/*****************************************************************************/
1566 1847
1567#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1848#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1568 1849
1569#if EV_MINPRI == EV_MAXPRI 1850#if EV_MINPRI == EV_MAXPRI
1570# define ABSPRI(w) (((W)w), 0) 1851# define ABSPRI(w) (((W)w), 0)
… …
1619#else 1900#else
1620 1901
1621#include <float.h> 1902#include <float.h>
1622 1903
1623/* a floor() replacement function, should be independent of ev_tstamp type */ 1904/* a floor() replacement function, should be independent of ev_tstamp type */
1624noinline 1905ecb_noinline
1625static ev_tstamp 1906static ev_tstamp
1626ev_floor (ev_tstamp v) 1907ev_floor (ev_tstamp v)
1627{ 1908{
1628 /* the choice of shift factor is not terribly important */ 1909 /* the choice of shift factor is not terribly important */
1629#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1910#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1630 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1911 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1631#else 1912#else
1632 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1913 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1633#endif 1914#endif
1634 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
1635 /* argument too large for an unsigned long? */ 1924 /* argument too large for an unsigned long? then reduce it */
1636 if (expect_false (v >= shift)) 1925 if (ecb_expect_false (v >= shift))
1637 { 1926 {
1638 ev_tstamp f; 1927 ev_tstamp f;
1639 1928
1640 if (v == v - 1.) 1929 if (v == v - 1.)
1641 return v; /* very large number */ 1930 return v; /* very large numbers are assumed to be integer */
1642 1931
1643 f = shift * ev_floor (v * (1. / shift)); 1932 f = shift * ev_floor (v * (1. / shift));
1644 return f + ev_floor (v - f); 1933 return f + ev_floor (v - f);
1645 } 1934 }
1646 1935
1647 /* special treatment for negative args? */
1648 if (expect_false (v < 0.))
1649 {
1650 ev_tstamp f = -ev_floor (-v);
1651
1652 return f - (f == v ? 0 : 1);
1653 }
1654
1655 /* fits into an unsigned long */ 1936 /* fits into an unsigned long */
1656 return (unsigned long)v; 1937 return (unsigned long)v;
1657} 1938}
1658 1939
1659#endif 1940#endif
… …
1662 1943
1663#ifdef __linux 1944#ifdef __linux
1664# include <sys/utsname.h> 1945# include <sys/utsname.h>
1665#endif 1946#endif
1666 1947
1667noinline ecb_cold 1948ecb_noinline ecb_cold
1668static unsigned int 1949static unsigned int
1669ev_linux_version (void) 1950ev_linux_version (void)
1670{ 1951{
1671#ifdef __linux 1952#ifdef __linux
1672 unsigned int v = 0; 1953 unsigned int v = 0;
… …
1702} 1983}
1703 1984
1704/*****************************************************************************/ 1985/*****************************************************************************/
1705 1986
1706#if EV_AVOID_STDIO 1987#if EV_AVOID_STDIO
1707noinline ecb_cold 1988ecb_noinline ecb_cold
1708static void 1989static void
1709ev_printerr (const char *msg) 1990ev_printerr (const char *msg)
1710{ 1991{
1711 write (STDERR_FILENO, msg, strlen (msg)); 1992 write (STDERR_FILENO, msg, strlen (msg));
1712} 1993}
… …
1719ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT 2000ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1720{ 2001{
1721 syserr_cb = cb; 2002 syserr_cb = cb;
1722} 2003}
1723 2004
1724noinline ecb_cold 2005ecb_noinline ecb_cold
1725static void 2006static void
1726ev_syserr (const char *msg) 2007ev_syserr (const char *msg)
1727{ 2008{
1728 if (!msg) 2009 if (!msg)
1729 msg = "(libev) system error"; 2010 msg = "(libev) system error";
… …
1801{ 2082{
1802 WL head; 2083 WL head;
1803 unsigned char events; /* the events watched for */ 2084 unsigned char events; /* the events watched for */
1804 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) */
1805 unsigned char emask; /* some backends store the actual kernel mask in here */ 2086 unsigned char emask; /* some backends store the actual kernel mask in here */
1806 unsigned char unused; 2087 unsigned char eflags; /* flags field for use by backends */
1807#if EV_USE_EPOLL 2088#if EV_USE_EPOLL
1808 unsigned int egen; /* generation counter to counter epoll bugs */ 2089 unsigned int egen; /* generation counter to counter epoll bugs */
1809#endif 2090#endif
1810#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2091#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1811 SOCKET handle; 2092 SOCKET handle;
… …
1865 static struct ev_loop default_loop_struct; 2146 static struct ev_loop default_loop_struct;
1866 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 */
1867 2148
1868#else 2149#else
1869 2150
1870 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 */
1871 #define VAR(name,decl) static decl; 2152 #define VAR(name,decl) static decl;
1872 #include "ev_vars.h" 2153 #include "ev_vars.h"
1873 #undef VAR 2154 #undef VAR
1874 2155
1875 static int ev_default_loop_ptr; 2156 static int ev_default_loop_ptr;
1876 2157
1877#endif 2158#endif
1878 2159
1879#if EV_FEATURE_API 2160#if EV_FEATURE_API
1880# 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)
1881# 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)
1882# define EV_INVOKE_PENDING invoke_cb (EV_A) 2163# define EV_INVOKE_PENDING invoke_cb (EV_A)
1883#else 2164#else
1884# define EV_RELEASE_CB (void)0 2165# define EV_RELEASE_CB (void)0
1885# define EV_ACQUIRE_CB (void)0 2166# define EV_ACQUIRE_CB (void)0
1886# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2167# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1893#ifndef EV_HAVE_EV_TIME 2174#ifndef EV_HAVE_EV_TIME
1894ev_tstamp 2175ev_tstamp
1895ev_time (void) EV_NOEXCEPT 2176ev_time (void) EV_NOEXCEPT
1896{ 2177{
1897#if EV_USE_REALTIME 2178#if EV_USE_REALTIME
1898 if (expect_true (have_realtime)) 2179 if (ecb_expect_true (have_realtime))
1899 { 2180 {
1900 struct timespec ts; 2181 struct timespec ts;
1901 clock_gettime (CLOCK_REALTIME, &ts); 2182 clock_gettime (CLOCK_REALTIME, &ts);
1902 return ts.tv_sec + ts.tv_nsec * 1e-9; 2183 return EV_TS_GET (ts);
1903 } 2184 }
1904#endif 2185#endif
1905 2186
2187 {
1906 struct timeval tv; 2188 struct timeval tv;
1907 gettimeofday (&tv, 0); 2189 gettimeofday (&tv, 0);
1908 return tv.tv_sec + tv.tv_usec * 1e-6; 2190 return EV_TV_GET (tv);
2191 }
1909} 2192}
1910#endif 2193#endif
1911 2194
1912inline_size ev_tstamp 2195inline_size ev_tstamp
1913get_clock (void) 2196get_clock (void)
1914{ 2197{
1915#if EV_USE_MONOTONIC 2198#if EV_USE_MONOTONIC
1916 if (expect_true (have_monotonic)) 2199 if (ecb_expect_true (have_monotonic))
1917 { 2200 {
1918 struct timespec ts; 2201 struct timespec ts;
1919 clock_gettime (CLOCK_MONOTONIC, &ts); 2202 clock_gettime (CLOCK_MONOTONIC, &ts);
1920 return ts.tv_sec + ts.tv_nsec * 1e-9; 2203 return EV_TS_GET (ts);
1921 } 2204 }
1922#endif 2205#endif
1923 2206
1924 return ev_time (); 2207 return ev_time ();
1925} 2208}
… …
1933#endif 2216#endif
1934 2217
1935void 2218void
1936ev_sleep (ev_tstamp delay) EV_NOEXCEPT 2219ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1937{ 2220{
1938 if (delay > 0.) 2221 if (delay > EV_TS_CONST (0.))
1939 { 2222 {
1940#if EV_USE_NANOSLEEP 2223#if EV_USE_NANOSLEEP
1941 struct timespec ts; 2224 struct timespec ts;
1942 2225
1943 EV_TS_SET (ts, delay); 2226 EV_TS_SET (ts, delay);
1944 nanosleep (&ts, 0); 2227 nanosleep (&ts, 0);
1945#elif defined _WIN32 2228#elif defined _WIN32
1946 /* maybe this should round up, as ms is very low resolution */ 2229 /* maybe this should round up, as ms is very low resolution */
1947 /* compared to select (µs) or nanosleep (ns) */ 2230 /* compared to select (µs) or nanosleep (ns) */
1948 Sleep ((unsigned long)(delay * 1e3)); 2231 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1949#else 2232#else
1950 struct timeval tv; 2233 struct timeval tv;
1951 2234
1952 /* 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 */
1953 /* something not guaranteed by newer posix versions, but guaranteed */ 2236 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1983 } 2266 }
1984 2267
1985 return ncur; 2268 return ncur;
1986} 2269}
1987 2270
1988noinline ecb_cold 2271ecb_noinline ecb_cold
1989static void * 2272static void *
1990array_realloc (int elem, void *base, int *cur, int cnt) 2273array_realloc (int elem, void *base, int *cur, int cnt)
1991{ 2274{
1992 *cur = array_nextsize (elem, *cur, cnt); 2275 *cur = array_nextsize (elem, *cur, cnt);
1993 return ev_realloc (base, elem * *cur); 2276 return ev_realloc (base, elem * *cur);
… …
1997 2280
1998#define array_needsize_zerofill(base,offset,count) \ 2281#define array_needsize_zerofill(base,offset,count) \
1999 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) 2282 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
2000 2283
2001#define array_needsize(type,base,cur,cnt,init) \ 2284#define array_needsize(type,base,cur,cnt,init) \
2002 if (expect_false ((cnt) > (cur))) \ 2285 if (ecb_expect_false ((cnt) > (cur))) \
2003 { \ 2286 { \
2004 ecb_unused int ocur_ = (cur); \ 2287 ecb_unused int ocur_ = (cur); \
2005 (base) = (type *)array_realloc \ 2288 (base) = (type *)array_realloc \
2006 (sizeof (type), (base), &(cur), (cnt)); \ 2289 (sizeof (type), (base), &(cur), (cnt)); \
2007 init ((base), ocur_, ((cur) - ocur_)); \ 2290 init ((base), ocur_, ((cur) - ocur_)); \
… …
2021 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
2022 2305
2023/*****************************************************************************/ 2306/*****************************************************************************/
2024 2307
2025/* dummy callback for pending events */ 2308/* dummy callback for pending events */
2026noinline 2309ecb_noinline
2027static void 2310static void
2028pendingcb (EV_P_ ev_prepare *w, int revents) 2311pendingcb (EV_P_ ev_prepare *w, int revents)
2029{ 2312{
2030} 2313}
2031 2314
2032noinline 2315ecb_noinline
2033void 2316void
2034ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT 2317ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
2035{ 2318{
2036 W w_ = (W)w; 2319 W w_ = (W)w;
2037 int pri = ABSPRI (w_); 2320 int pri = ABSPRI (w_);
2038 2321
2039 if (expect_false (w_->pending)) 2322 if (ecb_expect_false (w_->pending))
2040 pendings [pri][w_->pending - 1].events |= revents; 2323 pendings [pri][w_->pending - 1].events |= revents;
2041 else 2324 else
2042 { 2325 {
2043 w_->pending = ++pendingcnt [pri]; 2326 w_->pending = ++pendingcnt [pri];
2044 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); 2327 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
… …
2095inline_speed void 2378inline_speed void
2096fd_event (EV_P_ int fd, int revents) 2379fd_event (EV_P_ int fd, int revents)
2097{ 2380{
2098 ANFD *anfd = anfds + fd; 2381 ANFD *anfd = anfds + fd;
2099 2382
2100 if (expect_true (!anfd->reify)) 2383 if (ecb_expect_true (!anfd->reify))
2101 fd_event_nocheck (EV_A_ fd, revents); 2384 fd_event_nocheck (EV_A_ fd, revents);
2102} 2385}
2103 2386
2104void 2387void
2105ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT 2388ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
… …
2113inline_size void 2396inline_size void
2114fd_reify (EV_P) 2397fd_reify (EV_P)
2115{ 2398{
2116 int i; 2399 int i;
2117 2400
2401 /* most backends do not modify the fdchanges list in backend_modfiy.
2402 * except io_uring, which has fixed-size buffers which might force us
2403 * to handle events in backend_modify, causing fdchanges to be amended,
2404 * which could result in an endless loop.
2405 * to avoid this, we do not dynamically handle fds that were added
2406 * during fd_reify. that means that for those backends, fdchangecnt
2407 * might be non-zero during poll, which must cause them to not block.
2408 * to not put too much of a burden on other backends, this detail
2409 * needs to be handled in the backend.
2410 */
2411 int changecnt = fdchangecnt;
2412
2118#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2413#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2119 for (i = 0; i < fdchangecnt; ++i) 2414 for (i = 0; i < changecnt; ++i)
2120 { 2415 {
2121 int fd = fdchanges [i]; 2416 int fd = fdchanges [i];
2122 ANFD *anfd = anfds + fd; 2417 ANFD *anfd = anfds + fd;
2123 2418
2124 if (anfd->reify & EV__IOFDSET && anfd->head) 2419 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2138 } 2433 }
2139 } 2434 }
2140 } 2435 }
2141#endif 2436#endif
2142 2437
2143 for (i = 0; i < fdchangecnt; ++i) 2438 for (i = 0; i < changecnt; ++i)
2144 { 2439 {
2145 int fd = fdchanges [i]; 2440 int fd = fdchanges [i];
2146 ANFD *anfd = anfds + fd; 2441 ANFD *anfd = anfds + fd;
2147 ev_io *w; 2442 ev_io *w;
2148 2443
2149 unsigned char o_events = anfd->events; 2444 unsigned char o_events = anfd->events;
2150 unsigned char o_reify = anfd->reify; 2445 unsigned char o_reify = anfd->reify;
2151 2446
2152 anfd->reify = 0; 2447 anfd->reify = 0;
2153 2448
2154 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2449 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2155 { 2450 {
2156 anfd->events = 0; 2451 anfd->events = 0;
2157 2452
2158 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)
2159 anfd->events |= (unsigned char)w->events; 2454 anfd->events |= (unsigned char)w->events;
… …
2164 2459
2165 if (o_reify & EV__IOFDSET) 2460 if (o_reify & EV__IOFDSET)
2166 backend_modify (EV_A_ fd, o_events, anfd->events); 2461 backend_modify (EV_A_ fd, o_events, anfd->events);
2167 } 2462 }
2168 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
2169 fdchangecnt = 0; 2471 fdchangecnt -= changecnt;
2170} 2472}
2171 2473
2172/* something about the given fd changed */ 2474/* something about the given fd changed */
2173inline_size 2475inline_size
2174void 2476void
2175fd_change (EV_P_ int fd, int flags) 2477fd_change (EV_P_ int fd, int flags)
2176{ 2478{
2177 unsigned char reify = anfds [fd].reify; 2479 unsigned char reify = anfds [fd].reify;
2178 anfds [fd].reify |= flags; 2480 anfds [fd].reify = reify | flags;
2179 2481
2180 if (expect_true (!reify)) 2482 if (ecb_expect_true (!reify))
2181 { 2483 {
2182 ++fdchangecnt; 2484 ++fdchangecnt;
2183 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); 2485 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2184 fdchanges [fdchangecnt - 1] = fd; 2486 fdchanges [fdchangecnt - 1] = fd;
2185 } 2487 }
… …
2208 return fcntl (fd, F_GETFD) != -1; 2510 return fcntl (fd, F_GETFD) != -1;
2209#endif 2511#endif
2210} 2512}
2211 2513
2212/* called on EBADF to verify fds */ 2514/* called on EBADF to verify fds */
2213noinline ecb_cold 2515ecb_noinline ecb_cold
2214static void 2516static void
2215fd_ebadf (EV_P) 2517fd_ebadf (EV_P)
2216{ 2518{
2217 int fd; 2519 int fd;
2218 2520
… …
2221 if (!fd_valid (fd) && errno == EBADF) 2523 if (!fd_valid (fd) && errno == EBADF)
2222 fd_kill (EV_A_ fd); 2524 fd_kill (EV_A_ fd);
2223} 2525}
2224 2526
2225/* 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 */
2226noinline ecb_cold 2528ecb_noinline ecb_cold
2227static void 2529static void
2228fd_enomem (EV_P) 2530fd_enomem (EV_P)
2229{ 2531{
2230 int fd; 2532 int fd;
2231 2533
… …
2236 break; 2538 break;
2237 } 2539 }
2238} 2540}
2239 2541
2240/* 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 */
2241noinline 2543ecb_noinline
2242static void 2544static void
2243fd_rearm_all (EV_P) 2545fd_rearm_all (EV_P)
2244{ 2546{
2245 int fd; 2547 int fd;
2246 2548
… …
2300 ev_tstamp minat; 2602 ev_tstamp minat;
2301 ANHE *minpos; 2603 ANHE *minpos;
2302 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2604 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2303 2605
2304 /* find minimum child */ 2606 /* find minimum child */
2305 if (expect_true (pos + DHEAP - 1 < E)) 2607 if (ecb_expect_true (pos + DHEAP - 1 < E))
2306 { 2608 {
2307 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2609 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2308 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));
2309 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));
2310 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));
2311 } 2613 }
2312 else if (pos < E) 2614 else if (pos < E)
2313 { 2615 {
2314 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2616 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2315 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));
2316 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));
2317 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));
2318 } 2620 }
2319 else 2621 else
2320 break; 2622 break;
2321 2623
2322 if (ANHE_at (he) <= minat) 2624 if (ANHE_at (he) <= minat)
… …
2330 2632
2331 heap [k] = he; 2633 heap [k] = he;
2332 ev_active (ANHE_w (he)) = k; 2634 ev_active (ANHE_w (he)) = k;
2333} 2635}
2334 2636
2335#else /* 4HEAP */ 2637#else /* not 4HEAP */
2336 2638
2337#define HEAP0 1 2639#define HEAP0 1
2338#define HPARENT(k) ((k) >> 1) 2640#define HPARENT(k) ((k) >> 1)
2339#define UPHEAP_DONE(p,k) (!(p)) 2641#define UPHEAP_DONE(p,k) (!(p))
2340 2642
… …
2412 upheap (heap, i + HEAP0); 2714 upheap (heap, i + HEAP0);
2413} 2715}
2414 2716
2415/*****************************************************************************/ 2717/*****************************************************************************/
2416 2718
2417/* associate signal watchers to a signal signal */ 2719/* associate signal watchers to a signal */
2418typedef struct 2720typedef struct
2419{ 2721{
2420 EV_ATOMIC_T pending; 2722 EV_ATOMIC_T pending;
2421#if EV_MULTIPLICITY 2723#if EV_MULTIPLICITY
2422 EV_P; 2724 EV_P;
… …
2428 2730
2429/*****************************************************************************/ 2731/*****************************************************************************/
2430 2732
2431#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2733#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2432 2734
2433noinline ecb_cold 2735ecb_noinline ecb_cold
2434static void 2736static void
2435evpipe_init (EV_P) 2737evpipe_init (EV_P)
2436{ 2738{
2437 if (!ev_is_active (&pipe_w)) 2739 if (!ev_is_active (&pipe_w))
2438 { 2740 {
… …
2479inline_speed void 2781inline_speed void
2480evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2782evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2481{ 2783{
2482 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 */
2483 2785
2484 if (expect_true (*flag)) 2786 if (ecb_expect_true (*flag))
2485 return; 2787 return;
2486 2788
2487 *flag = 1; 2789 *flag = 1;
2488 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 */
2489 2791
… …
2566 sig_pending = 0; 2868 sig_pending = 0;
2567 2869
2568 ECB_MEMORY_FENCE; 2870 ECB_MEMORY_FENCE;
2569 2871
2570 for (i = EV_NSIG - 1; i--; ) 2872 for (i = EV_NSIG - 1; i--; )
2571 if (expect_false (signals [i].pending)) 2873 if (ecb_expect_false (signals [i].pending))
2572 ev_feed_signal_event (EV_A_ i + 1); 2874 ev_feed_signal_event (EV_A_ i + 1);
2573 } 2875 }
2574#endif 2876#endif
2575 2877
2576#if EV_ASYNC_ENABLE 2878#if EV_ASYNC_ENABLE
… …
2617#endif 2919#endif
2618 2920
2619 ev_feed_signal (signum); 2921 ev_feed_signal (signum);
2620} 2922}
2621 2923
2622noinline 2924ecb_noinline
2623void 2925void
2624ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT 2926ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2625{ 2927{
2626 WL w; 2928 WL w;
2627 2929
2628 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2930 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2629 return; 2931 return;
2630 2932
2631 --signum; 2933 --signum;
2632 2934
2633#if EV_MULTIPLICITY 2935#if EV_MULTIPLICITY
2634 /* 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 */
2635 /* or, likely more useful, feeding a signal nobody is waiting for */ 2937 /* or, likely more useful, feeding a signal nobody is waiting for */
2636 2938
2637 if (expect_false (signals [signum].loop != EV_A)) 2939 if (ecb_expect_false (signals [signum].loop != EV_A))
2638 return; 2940 return;
2639#endif 2941#endif
2640 2942
2641 signals [signum].pending = 0; 2943 signals [signum].pending = 0;
2642 ECB_MEMORY_FENCE_RELEASE; 2944 ECB_MEMORY_FENCE_RELEASE;
… …
2726 3028
2727#endif 3029#endif
2728 3030
2729/*****************************************************************************/ 3031/*****************************************************************************/
2730 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
2731#if EV_USE_IOCP 3084#if EV_USE_IOCP
2732# include "ev_iocp.c" 3085# include "ev_iocp.c"
2733#endif 3086#endif
2734#if EV_USE_PORT 3087#if EV_USE_PORT
2735# include "ev_port.c" 3088# include "ev_port.c"
… …
2740#if EV_USE_EPOLL 3093#if EV_USE_EPOLL
2741# include "ev_epoll.c" 3094# include "ev_epoll.c"
2742#endif 3095#endif
2743#if EV_USE_LINUXAIO 3096#if EV_USE_LINUXAIO
2744# include "ev_linuxaio.c" 3097# include "ev_linuxaio.c"
3098#endif
3099#if EV_USE_IOURING
3100# include "ev_iouring.c"
2745#endif 3101#endif
2746#if EV_USE_POLL 3102#if EV_USE_POLL
2747# include "ev_poll.c" 3103# include "ev_poll.c"
2748#endif 3104#endif
2749#if EV_USE_SELECT 3105#if EV_USE_SELECT
… …
2778unsigned int 3134unsigned int
2779ev_supported_backends (void) EV_NOEXCEPT 3135ev_supported_backends (void) EV_NOEXCEPT
2780{ 3136{
2781 unsigned int flags = 0; 3137 unsigned int flags = 0;
2782 3138
2783 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3139 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2784 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; 3140 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2785 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3141 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2786 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; 3142 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2787 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3143 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2788 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; 3144 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2789 3145 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3146
2790 return flags; 3147 return flags;
2791} 3148}
2792 3149
2793ecb_cold 3150ecb_cold
2794unsigned int 3151unsigned int
… …
2812 3169
2813 /* TODO: linuxaio is very experimental */ 3170 /* TODO: linuxaio is very experimental */
2814#if !EV_RECOMMEND_LINUXAIO 3171#if !EV_RECOMMEND_LINUXAIO
2815 flags &= ~EVBACKEND_LINUXAIO; 3172 flags &= ~EVBACKEND_LINUXAIO;
2816#endif 3173#endif
3174 /* TODO: iouring is super experimental */
3175#if !EV_RECOMMEND_IOURING
3176 flags &= ~EVBACKEND_IOURING;
3177#endif
2817 3178
2818 return flags; 3179 return flags;
2819} 3180}
2820 3181
2821ecb_cold 3182ecb_cold
2822unsigned int 3183unsigned int
2823ev_embeddable_backends (void) EV_NOEXCEPT 3184ev_embeddable_backends (void) EV_NOEXCEPT
2824{ 3185{
2825 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3186 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2826 3187
2827 /* 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 */
2828 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 */
2829 flags &= ~EVBACKEND_EPOLL; 3190 flags &= ~EVBACKEND_EPOLL;
2830 3191
3192 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3193
2831 return flags; 3194 return flags;
2832} 3195}
2833 3196
2834unsigned int 3197unsigned int
2835ev_backend (EV_P) EV_NOEXCEPT 3198ev_backend (EV_P) EV_NOEXCEPT
… …
2887 acquire_cb = acquire; 3250 acquire_cb = acquire;
2888} 3251}
2889#endif 3252#endif
2890 3253
2891/* initialise a loop structure, must be zero-initialised */ 3254/* initialise a loop structure, must be zero-initialised */
2892noinline ecb_cold 3255ecb_noinline ecb_cold
2893static void 3256static void
2894loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT 3257loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2895{ 3258{
2896 if (!backend) 3259 if (!backend)
2897 { 3260 {
… …
2952 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3315 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2953#endif 3316#endif
2954#if EV_USE_SIGNALFD 3317#if EV_USE_SIGNALFD
2955 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3318 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2956#endif 3319#endif
3320#if EV_USE_TIMERFD
3321 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3322#endif
2957 3323
2958 if (!(flags & EVBACKEND_MASK)) 3324 if (!(flags & EVBACKEND_MASK))
2959 flags |= ev_recommended_backends (); 3325 flags |= ev_recommended_backends ();
2960 3326
2961#if EV_USE_IOCP 3327#if EV_USE_IOCP
… …
2964#if EV_USE_PORT 3330#if EV_USE_PORT
2965 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3331 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2966#endif 3332#endif
2967#if EV_USE_KQUEUE 3333#if EV_USE_KQUEUE
2968 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);
2969#endif 3338#endif
2970#if EV_USE_LINUXAIO 3339#if EV_USE_LINUXAIO
2971 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); 3340 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2972#endif 3341#endif
2973#if EV_USE_EPOLL 3342#if EV_USE_EPOLL
… …
3002 return; 3371 return;
3003#endif 3372#endif
3004 3373
3005#if EV_CLEANUP_ENABLE 3374#if EV_CLEANUP_ENABLE
3006 /* queue cleanup watchers (and execute them) */ 3375 /* queue cleanup watchers (and execute them) */
3007 if (expect_false (cleanupcnt)) 3376 if (ecb_expect_false (cleanupcnt))
3008 { 3377 {
3009 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3378 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
3010 EV_INVOKE_PENDING; 3379 EV_INVOKE_PENDING;
3011 } 3380 }
3012#endif 3381#endif
… …
3031#if EV_USE_SIGNALFD 3400#if EV_USE_SIGNALFD
3032 if (ev_is_active (&sigfd_w)) 3401 if (ev_is_active (&sigfd_w))
3033 close (sigfd); 3402 close (sigfd);
3034#endif 3403#endif
3035 3404
3405#if EV_USE_TIMERFD
3406 if (ev_is_active (&timerfd_w))
3407 close (timerfd);
3408#endif
3409
3036#if EV_USE_INOTIFY 3410#if EV_USE_INOTIFY
3037 if (fs_fd >= 0) 3411 if (fs_fd >= 0)
3038 close (fs_fd); 3412 close (fs_fd);
3039#endif 3413#endif
3040 3414
… …
3047#if EV_USE_PORT 3421#if EV_USE_PORT
3048 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3422 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3049#endif 3423#endif
3050#if EV_USE_KQUEUE 3424#if EV_USE_KQUEUE
3051 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);
3052#endif 3429#endif
3053#if EV_USE_LINUXAIO 3430#if EV_USE_LINUXAIO
3054 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); 3431 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3055#endif 3432#endif
3056#if EV_USE_EPOLL 3433#if EV_USE_EPOLL
… …
3115 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3492 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3116#endif 3493#endif
3117#if EV_USE_KQUEUE 3494#if EV_USE_KQUEUE
3118 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); 3495 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3119#endif 3496#endif
3497#if EV_USE_IOURING
3498 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3499#endif
3120#if EV_USE_LINUXAIO 3500#if EV_USE_LINUXAIO
3121 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); 3501 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3122#endif 3502#endif
3123#if EV_USE_EPOLL 3503#if EV_USE_EPOLL
3124 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3504 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3125#endif 3505#endif
3126#if EV_USE_INOTIFY 3506#if EV_USE_INOTIFY
3127 infy_fork (EV_A); 3507 infy_fork (EV_A);
3128#endif 3508#endif
3129 3509
3510 if (postfork != 2)
3511 {
3512 #if EV_USE_SIGNALFD
3513 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3514 #endif
3515
3516 #if EV_USE_TIMERFD
3517 if (ev_is_active (&timerfd_w))
3518 {
3519 ev_ref (EV_A);
3520 ev_io_stop (EV_A_ &timerfd_w);
3521
3522 close (timerfd);
3523 timerfd = -2;
3524
3525 evtimerfd_init (EV_A);
3526 /* reschedule periodics, in case we missed something */
3527 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3528 }
3529 #endif
3530
3130#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3531 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3131 if (ev_is_active (&pipe_w) && postfork != 2) 3532 if (ev_is_active (&pipe_w))
3132 { 3533 {
3133 /* 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 */
3134 3535
3135 ev_ref (EV_A); 3536 ev_ref (EV_A);
3136 ev_io_stop (EV_A_ &pipe_w); 3537 ev_io_stop (EV_A_ &pipe_w);
3137 3538
3138 if (evpipe [0] >= 0) 3539 if (evpipe [0] >= 0)
3139 EV_WIN32_CLOSE_FD (evpipe [0]); 3540 EV_WIN32_CLOSE_FD (evpipe [0]);
3140 3541
3141 evpipe_init (EV_A); 3542 evpipe_init (EV_A);
3142 /* iterate over everything, in case we missed something before */ 3543 /* iterate over everything, in case we missed something before */
3143 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3544 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3545 }
3546 #endif
3144 } 3547 }
3145#endif
3146 3548
3147 postfork = 0; 3549 postfork = 0;
3148} 3550}
3149 3551
3150#if EV_MULTIPLICITY 3552#if EV_MULTIPLICITY
… …
3166} 3568}
3167 3569
3168#endif /* multiplicity */ 3570#endif /* multiplicity */
3169 3571
3170#if EV_VERIFY 3572#if EV_VERIFY
3171noinline ecb_cold 3573ecb_noinline ecb_cold
3172static void 3574static void
3173verify_watcher (EV_P_ W w) 3575verify_watcher (EV_P_ W w)
3174{ 3576{
3175 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));
3176 3578
3177 if (w->pending) 3579 if (w->pending)
3178 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));
3179} 3581}
3180 3582
3181noinline ecb_cold 3583ecb_noinline ecb_cold
3182static void 3584static void
3183verify_heap (EV_P_ ANHE *heap, int N) 3585verify_heap (EV_P_ ANHE *heap, int N)
3184{ 3586{
3185 int i; 3587 int i;
3186 3588
… …
3192 3594
3193 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3595 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3194 } 3596 }
3195} 3597}
3196 3598
3197noinline ecb_cold 3599ecb_noinline ecb_cold
3198static void 3600static void
3199array_verify (EV_P_ W *ws, int cnt) 3601array_verify (EV_P_ W *ws, int cnt)
3200{ 3602{
3201 while (cnt--) 3603 while (cnt--)
3202 { 3604 {
… …
3351 count += pendingcnt [pri]; 3753 count += pendingcnt [pri];
3352 3754
3353 return count; 3755 return count;
3354} 3756}
3355 3757
3356noinline 3758ecb_noinline
3357void 3759void
3358ev_invoke_pending (EV_P) 3760ev_invoke_pending (EV_P)
3359{ 3761{
3360 pendingpri = NUMPRI; 3762 pendingpri = NUMPRI;
3361 3763
… …
3380/* make idle watchers pending. this handles the "call-idle */ 3782/* make idle watchers pending. this handles the "call-idle */
3381/* only when higher priorities are idle" logic */ 3783/* only when higher priorities are idle" logic */
3382inline_size void 3784inline_size void
3383idle_reify (EV_P) 3785idle_reify (EV_P)
3384{ 3786{
3385 if (expect_false (idleall)) 3787 if (ecb_expect_false (idleall))
3386 { 3788 {
3387 int pri; 3789 int pri;
3388 3790
3389 for (pri = NUMPRI; pri--; ) 3791 for (pri = NUMPRI; pri--; )
3390 { 3792 {
… …
3420 { 3822 {
3421 ev_at (w) += w->repeat; 3823 ev_at (w) += w->repeat;
3422 if (ev_at (w) < mn_now) 3824 if (ev_at (w) < mn_now)
3423 ev_at (w) = mn_now; 3825 ev_at (w) = mn_now;
3424 3826
3425 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.)));
3426 3828
3427 ANHE_at_cache (timers [HEAP0]); 3829 ANHE_at_cache (timers [HEAP0]);
3428 downheap (timers, timercnt, HEAP0); 3830 downheap (timers, timercnt, HEAP0);
3429 } 3831 }
3430 else 3832 else
… …
3439 } 3841 }
3440} 3842}
3441 3843
3442#if EV_PERIODIC_ENABLE 3844#if EV_PERIODIC_ENABLE
3443 3845
3444noinline 3846ecb_noinline
3445static void 3847static void
3446periodic_recalc (EV_P_ ev_periodic *w) 3848periodic_recalc (EV_P_ ev_periodic *w)
3447{ 3849{
3448 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3850 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3449 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);
… …
3452 while (at <= ev_rt_now) 3854 while (at <= ev_rt_now)
3453 { 3855 {
3454 ev_tstamp nat = at + w->interval; 3856 ev_tstamp nat = at + w->interval;
3455 3857
3456 /* when resolution fails us, we use ev_rt_now */ 3858 /* when resolution fails us, we use ev_rt_now */
3457 if (expect_false (nat == at)) 3859 if (ecb_expect_false (nat == at))
3458 { 3860 {
3459 at = ev_rt_now; 3861 at = ev_rt_now;
3460 break; 3862 break;
3461 } 3863 }
3462 3864
… …
3508 } 3910 }
3509} 3911}
3510 3912
3511/* simply recalculate all periodics */ 3913/* simply recalculate all periodics */
3512/* 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? */
3513noinline ecb_cold 3915ecb_noinline ecb_cold
3514static void 3916static void
3515periodics_reschedule (EV_P) 3917periodics_reschedule (EV_P)
3516{ 3918{
3517 int i; 3919 int i;
3518 3920
… …
3532 reheap (periodics, periodiccnt); 3934 reheap (periodics, periodiccnt);
3533} 3935}
3534#endif 3936#endif
3535 3937
3536/* adjust all timers by a given offset */ 3938/* adjust all timers by a given offset */
3537noinline ecb_cold 3939ecb_noinline ecb_cold
3538static void 3940static void
3539timers_reschedule (EV_P_ ev_tstamp adjust) 3941timers_reschedule (EV_P_ ev_tstamp adjust)
3540{ 3942{
3541 int i; 3943 int i;
3542 3944
… …
3552/* also detect if there was a timejump, and act accordingly */ 3954/* also detect if there was a timejump, and act accordingly */
3553inline_speed void 3955inline_speed void
3554time_update (EV_P_ ev_tstamp max_block) 3956time_update (EV_P_ ev_tstamp max_block)
3555{ 3957{
3556#if EV_USE_MONOTONIC 3958#if EV_USE_MONOTONIC
3557 if (expect_true (have_monotonic)) 3959 if (ecb_expect_true (have_monotonic))
3558 { 3960 {
3559 int i; 3961 int i;
3560 ev_tstamp odiff = rtmn_diff; 3962 ev_tstamp odiff = rtmn_diff;
3561 3963
3562 mn_now = get_clock (); 3964 mn_now = get_clock ();
3563 3965
3564 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3966 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3565 /* interpolate in the meantime */ 3967 /* interpolate in the meantime */
3566 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)))
3567 { 3969 {
3568 ev_rt_now = rtmn_diff + mn_now; 3970 ev_rt_now = rtmn_diff + mn_now;
3569 return; 3971 return;
3570 } 3972 }
3571 3973
… …
3585 ev_tstamp diff; 3987 ev_tstamp diff;
3586 rtmn_diff = ev_rt_now - mn_now; 3988 rtmn_diff = ev_rt_now - mn_now;
3587 3989
3588 diff = odiff - rtmn_diff; 3990 diff = odiff - rtmn_diff;
3589 3991
3590 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)))
3591 return; /* all is well */ 3993 return; /* all is well */
3592 3994
3593 ev_rt_now = ev_time (); 3995 ev_rt_now = ev_time ();
3594 mn_now = get_clock (); 3996 mn_now = get_clock ();
3595 now_floor = mn_now; 3997 now_floor = mn_now;
… …
3604 else 4006 else
3605#endif 4007#endif
3606 { 4008 {
3607 ev_rt_now = ev_time (); 4009 ev_rt_now = ev_time ();
3608 4010
3609 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)))
3610 { 4012 {
3611 /* 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 */
3612 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4014 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3613#if EV_PERIODIC_ENABLE 4015#if EV_PERIODIC_ENABLE
3614 periodics_reschedule (EV_A); 4016 periodics_reschedule (EV_A);
… …
3637#if EV_VERIFY >= 2 4039#if EV_VERIFY >= 2
3638 ev_verify (EV_A); 4040 ev_verify (EV_A);
3639#endif 4041#endif
3640 4042
3641#ifndef _WIN32 4043#ifndef _WIN32
3642 if (expect_false (curpid)) /* penalise the forking check even more */ 4044 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3643 if (expect_false (getpid () != curpid)) 4045 if (ecb_expect_false (getpid () != curpid))
3644 { 4046 {
3645 curpid = getpid (); 4047 curpid = getpid ();
3646 postfork = 1; 4048 postfork = 1;
3647 } 4049 }
3648#endif 4050#endif
3649 4051
3650#if EV_FORK_ENABLE 4052#if EV_FORK_ENABLE
3651 /* we might have forked, so queue fork handlers */ 4053 /* we might have forked, so queue fork handlers */
3652 if (expect_false (postfork)) 4054 if (ecb_expect_false (postfork))
3653 if (forkcnt) 4055 if (forkcnt)
3654 { 4056 {
3655 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4057 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3656 EV_INVOKE_PENDING; 4058 EV_INVOKE_PENDING;
3657 } 4059 }
3658#endif 4060#endif
3659 4061
3660#if EV_PREPARE_ENABLE 4062#if EV_PREPARE_ENABLE
3661 /* queue prepare watchers (and execute them) */ 4063 /* queue prepare watchers (and execute them) */
3662 if (expect_false (preparecnt)) 4064 if (ecb_expect_false (preparecnt))
3663 { 4065 {
3664 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4066 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3665 EV_INVOKE_PENDING; 4067 EV_INVOKE_PENDING;
3666 } 4068 }
3667#endif 4069#endif
3668 4070
3669 if (expect_false (loop_done)) 4071 if (ecb_expect_false (loop_done))
3670 break; 4072 break;
3671 4073
3672 /* we might have forked, so reify kernel state if necessary */ 4074 /* we might have forked, so reify kernel state if necessary */
3673 if (expect_false (postfork)) 4075 if (ecb_expect_false (postfork))
3674 loop_fork (EV_A); 4076 loop_fork (EV_A);
3675 4077
3676 /* update fd-related kernel structures */ 4078 /* update fd-related kernel structures */
3677 fd_reify (EV_A); 4079 fd_reify (EV_A);
3678 4080
… …
3683 4085
3684 /* remember old timestamp for io_blocktime calculation */ 4086 /* remember old timestamp for io_blocktime calculation */
3685 ev_tstamp prev_mn_now = mn_now; 4087 ev_tstamp prev_mn_now = mn_now;
3686 4088
3687 /* update time to cancel out callback processing overhead */ 4089 /* update time to cancel out callback processing overhead */
3688 time_update (EV_A_ 1e100); 4090 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3689 4091
3690 /* from now on, we want a pipe-wake-up */ 4092 /* from now on, we want a pipe-wake-up */
3691 pipe_write_wanted = 1; 4093 pipe_write_wanted = 1;
3692 4094
3693 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 */
3694 4096
3695 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4097 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3696 { 4098 {
3697 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
3698 4116
3699 if (timercnt) 4117 if (timercnt)
3700 { 4118 {
3701 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4119 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3702 if (waittime > to) waittime = to; 4120 if (waittime > to) waittime = to;
… …
3709 if (waittime > to) waittime = to; 4127 if (waittime > to) waittime = to;
3710 } 4128 }
3711#endif 4129#endif
3712 4130
3713 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4131 /* don't let timeouts decrease the waittime below timeout_blocktime */
3714 if (expect_false (waittime < timeout_blocktime)) 4132 if (ecb_expect_false (waittime < timeout_blocktime))
3715 waittime = timeout_blocktime; 4133 waittime = timeout_blocktime;
3716 4134
3717 /* at this point, we NEED to wait, so we have to ensure */ 4135 /* now there are two more special cases left, either we have
3718 /* 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 */
3719 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.)
3720 waittime = backend_mintime; 4143 : backend_mintime;
3721 4144
3722 /* extra check because io_blocktime is commonly 0 */ 4145 /* extra check because io_blocktime is commonly 0 */
3723 if (expect_false (io_blocktime)) 4146 if (ecb_expect_false (io_blocktime))
3724 { 4147 {
3725 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4148 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3726 4149
3727 if (sleeptime > waittime - backend_mintime) 4150 if (sleeptime > waittime - backend_mintime)
3728 sleeptime = waittime - backend_mintime; 4151 sleeptime = waittime - backend_mintime;
3729 4152
3730 if (expect_true (sleeptime > 0.)) 4153 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3731 { 4154 {
3732 ev_sleep (sleeptime); 4155 ev_sleep (sleeptime);
3733 waittime -= sleeptime; 4156 waittime -= sleeptime;
3734 } 4157 }
3735 } 4158 }
… …
3749 { 4172 {
3750 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)));
3751 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4174 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3752 } 4175 }
3753 4176
3754
3755 /* update ev_rt_now, do magic */ 4177 /* update ev_rt_now, do magic */
3756 time_update (EV_A_ waittime + sleeptime); 4178 time_update (EV_A_ waittime + sleeptime);
3757 } 4179 }
3758 4180
3759 /* queue pending timers and reschedule them */ 4181 /* queue pending timers and reschedule them */
… …
3767 idle_reify (EV_A); 4189 idle_reify (EV_A);
3768#endif 4190#endif
3769 4191
3770#if EV_CHECK_ENABLE 4192#if EV_CHECK_ENABLE
3771 /* queue check watchers, to be executed first */ 4193 /* queue check watchers, to be executed first */
3772 if (expect_false (checkcnt)) 4194 if (ecb_expect_false (checkcnt))
3773 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4195 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3774#endif 4196#endif
3775 4197
3776 EV_INVOKE_PENDING; 4198 EV_INVOKE_PENDING;
3777 } 4199 }
3778 while (expect_true ( 4200 while (ecb_expect_true (
3779 activecnt 4201 activecnt
3780 && !loop_done 4202 && !loop_done
3781 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4203 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3782 )); 4204 ));
3783 4205
… …
3810} 4232}
3811 4233
3812void 4234void
3813ev_now_update (EV_P) EV_NOEXCEPT 4235ev_now_update (EV_P) EV_NOEXCEPT
3814{ 4236{
3815 time_update (EV_A_ 1e100); 4237 time_update (EV_A_ EV_TSTAMP_HUGE);
3816} 4238}
3817 4239
3818void 4240void
3819ev_suspend (EV_P) EV_NOEXCEPT 4241ev_suspend (EV_P) EV_NOEXCEPT
3820{ 4242{
… …
3847inline_size void 4269inline_size void
3848wlist_del (WL *head, WL elem) 4270wlist_del (WL *head, WL elem)
3849{ 4271{
3850 while (*head) 4272 while (*head)
3851 { 4273 {
3852 if (expect_true (*head == elem)) 4274 if (ecb_expect_true (*head == elem))
3853 { 4275 {
3854 *head = elem->next; 4276 *head = elem->next;
3855 break; 4277 break;
3856 } 4278 }
3857 4279
… …
3874ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT 4296ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3875{ 4297{
3876 W w_ = (W)w; 4298 W w_ = (W)w;
3877 int pending = w_->pending; 4299 int pending = w_->pending;
3878 4300
3879 if (expect_true (pending)) 4301 if (ecb_expect_true (pending))
3880 { 4302 {
3881 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4303 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3882 p->w = (W)&pending_w; 4304 p->w = (W)&pending_w;
3883 w_->pending = 0; 4305 w_->pending = 0;
3884 return p->events; 4306 return p->events;
… …
3911 w->active = 0; 4333 w->active = 0;
3912} 4334}
3913 4335
3914/*****************************************************************************/ 4336/*****************************************************************************/
3915 4337
3916noinline 4338ecb_noinline
3917void 4339void
3918ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT 4340ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3919{ 4341{
3920 int fd = w->fd; 4342 int fd = w->fd;
3921 4343
3922 if (expect_false (ev_is_active (w))) 4344 if (ecb_expect_false (ev_is_active (w)))
3923 return; 4345 return;
3924 4346
3925 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4347 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3926 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))));
3927 4349
… …
3941 w->events &= ~EV__IOFDSET; 4363 w->events &= ~EV__IOFDSET;
3942 4364
3943 EV_FREQUENT_CHECK; 4365 EV_FREQUENT_CHECK;
3944} 4366}
3945 4367
3946noinline 4368ecb_noinline
3947void 4369void
3948ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT 4370ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3949{ 4371{
3950 clear_pending (EV_A_ (W)w); 4372 clear_pending (EV_A_ (W)w);
3951 if (expect_false (!ev_is_active (w))) 4373 if (ecb_expect_false (!ev_is_active (w)))
3952 return; 4374 return;
3953 4375
3954 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));
3955 4377
3956#if EV_VERIFY >= 2 4378#if EV_VERIFY >= 2
… …
3964 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4386 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3965 4387
3966 EV_FREQUENT_CHECK; 4388 EV_FREQUENT_CHECK;
3967} 4389}
3968 4390
3969noinline 4391ecb_noinline
3970void 4392void
3971ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT 4393ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3972{ 4394{
3973 if (expect_false (ev_is_active (w))) 4395 if (ecb_expect_false (ev_is_active (w)))
3974 return; 4396 return;
3975 4397
3976 ev_at (w) += mn_now; 4398 ev_at (w) += mn_now;
3977 4399
3978 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.));
… …
3989 EV_FREQUENT_CHECK; 4411 EV_FREQUENT_CHECK;
3990 4412
3991 /*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));*/
3992} 4414}
3993 4415
3994noinline 4416ecb_noinline
3995void 4417void
3996ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT 4418ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3997{ 4419{
3998 clear_pending (EV_A_ (W)w); 4420 clear_pending (EV_A_ (W)w);
3999 if (expect_false (!ev_is_active (w))) 4421 if (ecb_expect_false (!ev_is_active (w)))
4000 return; 4422 return;
4001 4423
4002 EV_FREQUENT_CHECK; 4424 EV_FREQUENT_CHECK;
4003 4425
4004 { 4426 {
… …
4006 4428
4007 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));
4008 4430
4009 --timercnt; 4431 --timercnt;
4010 4432
4011 if (expect_true (active < timercnt + HEAP0)) 4433 if (ecb_expect_true (active < timercnt + HEAP0))
4012 { 4434 {
4013 timers [active] = timers [timercnt + HEAP0]; 4435 timers [active] = timers [timercnt + HEAP0];
4014 adjustheap (timers, timercnt, active); 4436 adjustheap (timers, timercnt, active);
4015 } 4437 }
4016 } 4438 }
… …
4020 ev_stop (EV_A_ (W)w); 4442 ev_stop (EV_A_ (W)w);
4021 4443
4022 EV_FREQUENT_CHECK; 4444 EV_FREQUENT_CHECK;
4023} 4445}
4024 4446
4025noinline 4447ecb_noinline
4026void 4448void
4027ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT 4449ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
4028{ 4450{
4029 EV_FREQUENT_CHECK; 4451 EV_FREQUENT_CHECK;
4030 4452
… …
4051} 4473}
4052 4474
4053ev_tstamp 4475ev_tstamp
4054ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT 4476ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
4055{ 4477{
4056 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.));
4057} 4479}
4058 4480
4059#if EV_PERIODIC_ENABLE 4481#if EV_PERIODIC_ENABLE
4060noinline 4482ecb_noinline
4061void 4483void
4062ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT 4484ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4063{ 4485{
4064 if (expect_false (ev_is_active (w))) 4486 if (ecb_expect_false (ev_is_active (w)))
4065 return; 4487 return;
4488
4489#if EV_USE_TIMERFD
4490 if (timerfd == -2)
4491 evtimerfd_init (EV_A);
4492#endif
4066 4493
4067 if (w->reschedule_cb) 4494 if (w->reschedule_cb)
4068 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4495 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4069 else if (w->interval) 4496 else if (w->interval)
4070 { 4497 {
… …
4086 EV_FREQUENT_CHECK; 4513 EV_FREQUENT_CHECK;
4087 4514
4088 /*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));*/
4089} 4516}
4090 4517
4091noinline 4518ecb_noinline
4092void 4519void
4093ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT 4520ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4094{ 4521{
4095 clear_pending (EV_A_ (W)w); 4522 clear_pending (EV_A_ (W)w);
4096 if (expect_false (!ev_is_active (w))) 4523 if (ecb_expect_false (!ev_is_active (w)))
4097 return; 4524 return;
4098 4525
4099 EV_FREQUENT_CHECK; 4526 EV_FREQUENT_CHECK;
4100 4527
4101 { 4528 {
… …
4103 4530
4104 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));
4105 4532
4106 --periodiccnt; 4533 --periodiccnt;
4107 4534
4108 if (expect_true (active < periodiccnt + HEAP0)) 4535 if (ecb_expect_true (active < periodiccnt + HEAP0))
4109 { 4536 {
4110 periodics [active] = periodics [periodiccnt + HEAP0]; 4537 periodics [active] = periodics [periodiccnt + HEAP0];
4111 adjustheap (periodics, periodiccnt, active); 4538 adjustheap (periodics, periodiccnt, active);
4112 } 4539 }
4113 } 4540 }
… …
4115 ev_stop (EV_A_ (W)w); 4542 ev_stop (EV_A_ (W)w);
4116 4543
4117 EV_FREQUENT_CHECK; 4544 EV_FREQUENT_CHECK;
4118} 4545}
4119 4546
4120noinline 4547ecb_noinline
4121void 4548void
4122ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT 4549ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4123{ 4550{
4124 /* TODO: use adjustheap and recalculation */ 4551 /* TODO: use adjustheap and recalculation */
4125 ev_periodic_stop (EV_A_ w); 4552 ev_periodic_stop (EV_A_ w);
… …
4131# define SA_RESTART 0 4558# define SA_RESTART 0
4132#endif 4559#endif
4133 4560
4134#if EV_SIGNAL_ENABLE 4561#if EV_SIGNAL_ENABLE
4135 4562
4136noinline 4563ecb_noinline
4137void 4564void
4138ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT 4565ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4139{ 4566{
4140 if (expect_false (ev_is_active (w))) 4567 if (ecb_expect_false (ev_is_active (w)))
4141 return; 4568 return;
4142 4569
4143 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));
4144 4571
4145#if EV_MULTIPLICITY 4572#if EV_MULTIPLICITY
… …
4214 } 4641 }
4215 4642
4216 EV_FREQUENT_CHECK; 4643 EV_FREQUENT_CHECK;
4217} 4644}
4218 4645
4219noinline 4646ecb_noinline
4220void 4647void
4221ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT 4648ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4222{ 4649{
4223 clear_pending (EV_A_ (W)w); 4650 clear_pending (EV_A_ (W)w);
4224 if (expect_false (!ev_is_active (w))) 4651 if (ecb_expect_false (!ev_is_active (w)))
4225 return; 4652 return;
4226 4653
4227 EV_FREQUENT_CHECK; 4654 EV_FREQUENT_CHECK;
4228 4655
4229 wlist_del (&signals [w->signum - 1].head, (WL)w); 4656 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4262ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT 4689ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4263{ 4690{
4264#if EV_MULTIPLICITY 4691#if EV_MULTIPLICITY
4265 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));
4266#endif 4693#endif
4267 if (expect_false (ev_is_active (w))) 4694 if (ecb_expect_false (ev_is_active (w)))
4268 return; 4695 return;
4269 4696
4270 EV_FREQUENT_CHECK; 4697 EV_FREQUENT_CHECK;
4271 4698
4272 ev_start (EV_A_ (W)w, 1); 4699 ev_start (EV_A_ (W)w, 1);
… …
4277 4704
4278void 4705void
4279ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT 4706ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4280{ 4707{
4281 clear_pending (EV_A_ (W)w); 4708 clear_pending (EV_A_ (W)w);
4282 if (expect_false (!ev_is_active (w))) 4709 if (ecb_expect_false (!ev_is_active (w)))
4283 return; 4710 return;
4284 4711
4285 EV_FREQUENT_CHECK; 4712 EV_FREQUENT_CHECK;
4286 4713
4287 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4714 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4301 4728
4302#define DEF_STAT_INTERVAL 5.0074891 4729#define DEF_STAT_INTERVAL 5.0074891
4303#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4730#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4304#define MIN_STAT_INTERVAL 0.1074891 4731#define MIN_STAT_INTERVAL 0.1074891
4305 4732
4306noinline 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);
4307 4734
4308#if EV_USE_INOTIFY 4735#if EV_USE_INOTIFY
4309 4736
4310/* 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 */
4311# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4738# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4312 4739
4313noinline 4740ecb_noinline
4314static void 4741static void
4315infy_add (EV_P_ ev_stat *w) 4742infy_add (EV_P_ ev_stat *w)
4316{ 4743{
4317 w->wd = inotify_add_watch (fs_fd, w->path, 4744 w->wd = inotify_add_watch (fs_fd, w->path,
4318 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4745 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4383 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4810 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4384 ev_timer_again (EV_A_ &w->timer); 4811 ev_timer_again (EV_A_ &w->timer);
4385 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4812 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4386} 4813}
4387 4814
4388noinline 4815ecb_noinline
4389static void 4816static void
4390infy_del (EV_P_ ev_stat *w) 4817infy_del (EV_P_ ev_stat *w)
4391{ 4818{
4392 int slot; 4819 int slot;
4393 int wd = w->wd; 4820 int wd = w->wd;
… …
4401 4828
4402 /* remove this watcher, if others are watching it, they will rearm */ 4829 /* remove this watcher, if others are watching it, they will rearm */
4403 inotify_rm_watch (fs_fd, wd); 4830 inotify_rm_watch (fs_fd, wd);
4404} 4831}
4405 4832
4406noinline 4833ecb_noinline
4407static void 4834static void
4408infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4835infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4409{ 4836{
4410 if (slot < 0) 4837 if (slot < 0)
4411 /* overflow, need to check for all hash slots */ 4838 /* overflow, need to check for all hash slots */
… …
4557 w->attr.st_nlink = 0; 4984 w->attr.st_nlink = 0;
4558 else if (!w->attr.st_nlink) 4985 else if (!w->attr.st_nlink)
4559 w->attr.st_nlink = 1; 4986 w->attr.st_nlink = 1;
4560} 4987}
4561 4988
4562noinline 4989ecb_noinline
4563static void 4990static void
4564stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4991stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4565{ 4992{
4566 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4993 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4567 4994
… …
4601} 5028}
4602 5029
4603void 5030void
4604ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT 5031ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4605{ 5032{
4606 if (expect_false (ev_is_active (w))) 5033 if (ecb_expect_false (ev_is_active (w)))
4607 return; 5034 return;
4608 5035
4609 ev_stat_stat (EV_A_ w); 5036 ev_stat_stat (EV_A_ w);
4610 5037
4611 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5038 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4633 5060
4634void 5061void
4635ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT 5062ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4636{ 5063{
4637 clear_pending (EV_A_ (W)w); 5064 clear_pending (EV_A_ (W)w);
4638 if (expect_false (!ev_is_active (w))) 5065 if (ecb_expect_false (!ev_is_active (w)))
4639 return; 5066 return;
4640 5067
4641 EV_FREQUENT_CHECK; 5068 EV_FREQUENT_CHECK;
4642 5069
4643#if EV_USE_INOTIFY 5070#if EV_USE_INOTIFY
… …
4658 5085
4659#if EV_IDLE_ENABLE 5086#if EV_IDLE_ENABLE
4660void 5087void
4661ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT 5088ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4662{ 5089{
4663 if (expect_false (ev_is_active (w))) 5090 if (ecb_expect_false (ev_is_active (w)))
4664 return; 5091 return;
4665 5092
4666 pri_adjust (EV_A_ (W)w); 5093 pri_adjust (EV_A_ (W)w);
4667 5094
4668 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
… …
4682 5109
4683void 5110void
4684ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT 5111ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4685{ 5112{
4686 clear_pending (EV_A_ (W)w); 5113 clear_pending (EV_A_ (W)w);
4687 if (expect_false (!ev_is_active (w))) 5114 if (ecb_expect_false (!ev_is_active (w)))
4688 return; 5115 return;
4689 5116
4690 EV_FREQUENT_CHECK; 5117 EV_FREQUENT_CHECK;
4691 5118
4692 { 5119 {
… …
4705 5132
4706#if EV_PREPARE_ENABLE 5133#if EV_PREPARE_ENABLE
4707void 5134void
4708ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT 5135ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4709{ 5136{
4710 if (expect_false (ev_is_active (w))) 5137 if (ecb_expect_false (ev_is_active (w)))
4711 return; 5138 return;
4712 5139
4713 EV_FREQUENT_CHECK; 5140 EV_FREQUENT_CHECK;
4714 5141
4715 ev_start (EV_A_ (W)w, ++preparecnt); 5142 ev_start (EV_A_ (W)w, ++preparecnt);
… …
4721 5148
4722void 5149void
4723ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT 5150ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4724{ 5151{
4725 clear_pending (EV_A_ (W)w); 5152 clear_pending (EV_A_ (W)w);
4726 if (expect_false (!ev_is_active (w))) 5153 if (ecb_expect_false (!ev_is_active (w)))
4727 return; 5154 return;
4728 5155
4729 EV_FREQUENT_CHECK; 5156 EV_FREQUENT_CHECK;
4730 5157
4731 { 5158 {
… …
4743 5170
4744#if EV_CHECK_ENABLE 5171#if EV_CHECK_ENABLE
4745void 5172void
4746ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT 5173ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4747{ 5174{
4748 if (expect_false (ev_is_active (w))) 5175 if (ecb_expect_false (ev_is_active (w)))
4749 return; 5176 return;
4750 5177
4751 EV_FREQUENT_CHECK; 5178 EV_FREQUENT_CHECK;
4752 5179
4753 ev_start (EV_A_ (W)w, ++checkcnt); 5180 ev_start (EV_A_ (W)w, ++checkcnt);
… …
4759 5186
4760void 5187void
4761ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT 5188ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4762{ 5189{
4763 clear_pending (EV_A_ (W)w); 5190 clear_pending (EV_A_ (W)w);
4764 if (expect_false (!ev_is_active (w))) 5191 if (ecb_expect_false (!ev_is_active (w)))
4765 return; 5192 return;
4766 5193
4767 EV_FREQUENT_CHECK; 5194 EV_FREQUENT_CHECK;
4768 5195
4769 { 5196 {
… …
4778 EV_FREQUENT_CHECK; 5205 EV_FREQUENT_CHECK;
4779} 5206}
4780#endif 5207#endif
4781 5208
4782#if EV_EMBED_ENABLE 5209#if EV_EMBED_ENABLE
4783noinline 5210ecb_noinline
4784void 5211void
4785ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT 5212ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4786{ 5213{
4787 ev_run (w->other, EVRUN_NOWAIT); 5214 ev_run (w->other, EVRUN_NOWAIT);
4788} 5215}
… …
4812 ev_run (EV_A_ EVRUN_NOWAIT); 5239 ev_run (EV_A_ EVRUN_NOWAIT);
4813 } 5240 }
4814 } 5241 }
4815} 5242}
4816 5243
5244#if EV_FORK_ENABLE
4817static void 5245static void
4818embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5246embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4819{ 5247{
4820 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));
4821 5249
… …
4828 ev_run (EV_A_ EVRUN_NOWAIT); 5256 ev_run (EV_A_ EVRUN_NOWAIT);
4829 } 5257 }
4830 5258
4831 ev_embed_start (EV_A_ w); 5259 ev_embed_start (EV_A_ w);
4832} 5260}
5261#endif
4833 5262
4834#if 0 5263#if 0
4835static void 5264static void
4836embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5265embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4837{ 5266{
… …
4840#endif 5269#endif
4841 5270
4842void 5271void
4843ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT 5272ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4844{ 5273{
4845 if (expect_false (ev_is_active (w))) 5274 if (ecb_expect_false (ev_is_active (w)))
4846 return; 5275 return;
4847 5276
4848 { 5277 {
4849 EV_P = w->other; 5278 EV_P = w->other;
4850 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 ()));
… …
4858 5287
4859 ev_prepare_init (&w->prepare, embed_prepare_cb); 5288 ev_prepare_init (&w->prepare, embed_prepare_cb);
4860 ev_set_priority (&w->prepare, EV_MINPRI); 5289 ev_set_priority (&w->prepare, EV_MINPRI);
4861 ev_prepare_start (EV_A_ &w->prepare); 5290 ev_prepare_start (EV_A_ &w->prepare);
4862 5291
5292#if EV_FORK_ENABLE
4863 ev_fork_init (&w->fork, embed_fork_cb); 5293 ev_fork_init (&w->fork, embed_fork_cb);
4864 ev_fork_start (EV_A_ &w->fork); 5294 ev_fork_start (EV_A_ &w->fork);
5295#endif
4865 5296
4866 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5297 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4867 5298
4868 ev_start (EV_A_ (W)w, 1); 5299 ev_start (EV_A_ (W)w, 1);
4869 5300
… …
4872 5303
4873void 5304void
4874ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT 5305ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4875{ 5306{
4876 clear_pending (EV_A_ (W)w); 5307 clear_pending (EV_A_ (W)w);
4877 if (expect_false (!ev_is_active (w))) 5308 if (ecb_expect_false (!ev_is_active (w)))
4878 return; 5309 return;
4879 5310
4880 EV_FREQUENT_CHECK; 5311 EV_FREQUENT_CHECK;
4881 5312
4882 ev_io_stop (EV_A_ &w->io); 5313 ev_io_stop (EV_A_ &w->io);
4883 ev_prepare_stop (EV_A_ &w->prepare); 5314 ev_prepare_stop (EV_A_ &w->prepare);
5315#if EV_FORK_ENABLE
4884 ev_fork_stop (EV_A_ &w->fork); 5316 ev_fork_stop (EV_A_ &w->fork);
5317#endif
4885 5318
4886 ev_stop (EV_A_ (W)w); 5319 ev_stop (EV_A_ (W)w);
4887 5320
4888 EV_FREQUENT_CHECK; 5321 EV_FREQUENT_CHECK;
4889} 5322}
… …
4891 5324
4892#if EV_FORK_ENABLE 5325#if EV_FORK_ENABLE
4893void 5326void
4894ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT 5327ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4895{ 5328{
4896 if (expect_false (ev_is_active (w))) 5329 if (ecb_expect_false (ev_is_active (w)))
4897 return; 5330 return;
4898 5331
4899 EV_FREQUENT_CHECK; 5332 EV_FREQUENT_CHECK;
4900 5333
4901 ev_start (EV_A_ (W)w, ++forkcnt); 5334 ev_start (EV_A_ (W)w, ++forkcnt);
… …
4907 5340
4908void 5341void
4909ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT 5342ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4910{ 5343{
4911 clear_pending (EV_A_ (W)w); 5344 clear_pending (EV_A_ (W)w);
4912 if (expect_false (!ev_is_active (w))) 5345 if (ecb_expect_false (!ev_is_active (w)))
4913 return; 5346 return;
4914 5347
4915 EV_FREQUENT_CHECK; 5348 EV_FREQUENT_CHECK;
4916 5349
4917 { 5350 {
… …
4929 5362
4930#if EV_CLEANUP_ENABLE 5363#if EV_CLEANUP_ENABLE
4931void 5364void
4932ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5365ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4933{ 5366{
4934 if (expect_false (ev_is_active (w))) 5367 if (ecb_expect_false (ev_is_active (w)))
4935 return; 5368 return;
4936 5369
4937 EV_FREQUENT_CHECK; 5370 EV_FREQUENT_CHECK;
4938 5371
4939 ev_start (EV_A_ (W)w, ++cleanupcnt); 5372 ev_start (EV_A_ (W)w, ++cleanupcnt);
… …
4947 5380
4948void 5381void
4949ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5382ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4950{ 5383{
4951 clear_pending (EV_A_ (W)w); 5384 clear_pending (EV_A_ (W)w);
4952 if (expect_false (!ev_is_active (w))) 5385 if (ecb_expect_false (!ev_is_active (w)))
4953 return; 5386 return;
4954 5387
4955 EV_FREQUENT_CHECK; 5388 EV_FREQUENT_CHECK;
4956 ev_ref (EV_A); 5389 ev_ref (EV_A);
4957 5390
… …
4970 5403
4971#if EV_ASYNC_ENABLE 5404#if EV_ASYNC_ENABLE
4972void 5405void
4973ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT 5406ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4974{ 5407{
4975 if (expect_false (ev_is_active (w))) 5408 if (ecb_expect_false (ev_is_active (w)))
4976 return; 5409 return;
4977 5410
4978 w->sent = 0; 5411 w->sent = 0;
4979 5412
4980 evpipe_init (EV_A); 5413 evpipe_init (EV_A);
… …
4990 5423
4991void 5424void
4992ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT 5425ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4993{ 5426{
4994 clear_pending (EV_A_ (W)w); 5427 clear_pending (EV_A_ (W)w);
4995 if (expect_false (!ev_is_active (w))) 5428 if (ecb_expect_false (!ev_is_active (w)))
4996 return; 5429 return;
4997 5430
4998 EV_FREQUENT_CHECK; 5431 EV_FREQUENT_CHECK;
4999 5432
5000 { 5433 {

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