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Comparing libev/ev.c (file contents):
Revision 1.500 by root, Mon Jul 1 20:47:37 2019 UTC vs.
Revision 1.524 by root, Wed Jan 22 02:20:47 2020 UTC

… …
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H 120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO 121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO EV_FEATURE_BACKENDS 122# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
123# endif 123# endif
124# else 124# else
125# undef EV_USE_LINUXAIO 125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0 126# define EV_USE_LINUXAIO 0
127# endif 127# endif
128 128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
129# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
130# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
131# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
132# endif 141# endif
133# else 142# else
… …
168# endif 177# endif
169# else 178# else
170# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
171# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
172# endif 181# endif
173 182
183# if HAVE_SYS_TIMERFD_H
184# ifndef EV_USE_TIMERFD
185# define EV_USE_TIMERFD EV_FEATURE_OS
186# endif
187# else
188# undef EV_USE_TIMERFD
189# define EV_USE_TIMERFD 0
190# endif
191
174#endif 192#endif
175 193
176/* OS X, in its infinite idiocy, actually HARDCODES 194/* OS X, in its infinite idiocy, actually HARDCODES
177 * a limit of 1024 into their select. Where people have brains, 195 * a limit of 1024 into their select. Where people have brains,
178 * OS X engineers apparently have a vacuum. Or maybe they were 196 * OS X engineers apparently have a vacuum. Or maybe they were
… …
326# define EV_USE_PORT 0 344# define EV_USE_PORT 0
327#endif 345#endif
328 346
329#ifndef EV_USE_LINUXAIO 347#ifndef EV_USE_LINUXAIO
330# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ 348# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
331# define EV_USE_LINUXAIO 1 349# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
332# else 350# else
333# define EV_USE_LINUXAIO 0 351# define EV_USE_LINUXAIO 0
352# endif
353#endif
354
355#ifndef EV_USE_IOURING
356# if __linux /* later checks might disable again */
357# define EV_USE_IOURING 1
358# else
359# define EV_USE_IOURING 0
334# endif 360# endif
335#endif 361#endif
336 362
337#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
338# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
… …
361#ifndef EV_USE_SIGNALFD 387#ifndef EV_USE_SIGNALFD
362# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 388# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
363# define EV_USE_SIGNALFD EV_FEATURE_OS 389# define EV_USE_SIGNALFD EV_FEATURE_OS
364# else 390# else
365# define EV_USE_SIGNALFD 0 391# define EV_USE_SIGNALFD 0
392# endif
393#endif
394
395#ifndef EV_USE_TIMERFD
396# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8))
397# define EV_USE_TIMERFD EV_FEATURE_OS
398# else
399# define EV_USE_TIMERFD 0
366# endif 400# endif
367#endif 401#endif
368 402
369#if 0 /* debugging */ 403#if 0 /* debugging */
370# define EV_VERIFY 3 404# define EV_VERIFY 3
… …
406# include <sys/syscall.h> 440# include <sys/syscall.h>
407# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
408# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
409# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
410# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
411# else 446# else
412# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
413# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
414# endif 449# endif
415#endif 450#endif
… …
427#endif 462#endif
428 463
429#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
430# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
431# define EV_USE_INOTIFY 0 466# define EV_USE_INOTIFY 0
467#endif
468
469#if __linux && EV_USE_IOURING
470# include <linux/version.h>
471# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
472# undef EV_USE_IOURING
473# define EV_USE_IOURING 0
474# endif
432#endif 475#endif
433 476
434#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
435/* hp-ux has it in sys/time.h, which we unconditionally include above */ 478/* hp-ux has it in sys/time.h, which we unconditionally include above */
436# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
… …
438# endif 481# endif
439#endif 482#endif
440 483
441#if EV_USE_LINUXAIO 484#if EV_USE_LINUXAIO
442# include <sys/syscall.h> 485# include <sys/syscall.h>
443# if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */ 486# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
487# define EV_NEED_SYSCALL 1
488# else
444# undef EV_USE_LINUXAIO 489# undef EV_USE_LINUXAIO
445# define EV_USE_LINUXAIO 0 490# define EV_USE_LINUXAIO 0
491# endif
492#endif
493
494#if EV_USE_IOURING
495# include <sys/syscall.h>
496# if !SYS_io_uring_setup && __linux && !__alpha
497# define SYS_io_uring_setup 425
498# define SYS_io_uring_enter 426
499# define SYS_io_uring_wregister 427
500# endif
501# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
502# define EV_NEED_SYSCALL 1
503# else
504# undef EV_USE_IOURING
505# define EV_USE_IOURING 0
446# endif 506# endif
447#endif 507#endif
448 508
449#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
450# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
455# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
456# endif 516# endif
457#endif 517#endif
458 518
459#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
460/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 520/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
461# include <stdint.h> 521# include <stdint.h>
462# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
463# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
464# endif 524# endif
465# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
471# endif 531# endif
472EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
473#endif 533#endif
474 534
475#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
476/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 536/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
477# include <stdint.h> 537# include <stdint.h>
478# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
479# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
480# endif 540# endif
481# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
483# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
484# else 544# else
485# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
486# endif 546# endif
487# endif 547# endif
488EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); 548EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags);
489 549
490struct signalfd_siginfo 550struct signalfd_siginfo
491{ 551{
492 uint32_t ssi_signo; 552 uint32_t ssi_signo;
493 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
494}; 554};
495#endif 555#endif
496 556
497/**/ 557/* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */
558#if EV_USE_TIMERFD
559# include <sys/timerfd.h>
560/* timerfd is only used for periodics */
561# if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE
562# undef EV_USE_TIMERFD
563# define EV_USE_TIMERFD 0
564# endif
565#endif
566
567/*****************************************************************************/
498 568
499#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
500# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
501#else 571#else
502# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
507 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
508 */ 578 */
509#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
510/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
511 581
512#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 582#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
513#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 583#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
584#define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */
514 585
586/* find a portable timestamp that is "always" in the future but fits into time_t.
587 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
588 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
589#define EV_TSTAMP_HUGE \
590 (sizeof (time_t) >= 8 ? 10000000000000. \
591 : 0 < (time_t)4294967295 ? 4294967295. \
592 : 2147483647.) \
593
594#ifndef EV_TS_CONST
595# define EV_TS_CONST(nv) nv
596# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
597# define EV_TS_FROM_USEC(us) us * 1e-6
515#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 598# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
516#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 599# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
600# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
601# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
602#endif
517 603
518/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 604/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
519/* ECB.H BEGIN */ 605/* ECB.H BEGIN */
520/* 606/*
521 * libecb - http://software.schmorp.de/pkg/libecb 607 * libecb - http://software.schmorp.de/pkg/libecb
… …
559 645
560#ifndef ECB_H 646#ifndef ECB_H
561#define ECB_H 647#define ECB_H
562 648
563/* 16 bits major, 16 bits minor */ 649/* 16 bits major, 16 bits minor */
564#define ECB_VERSION 0x00010006 650#define ECB_VERSION 0x00010008
651
652#include <string.h> /* for memcpy */
565 653
566#ifdef _WIN32 654#ifdef _WIN32
567 typedef signed char int8_t; 655 typedef signed char int8_t;
568 typedef unsigned char uint8_t; 656 typedef unsigned char uint8_t;
657 typedef signed char int_fast8_t;
658 typedef unsigned char uint_fast8_t;
569 typedef signed short int16_t; 659 typedef signed short int16_t;
570 typedef unsigned short uint16_t; 660 typedef unsigned short uint16_t;
661 typedef signed int int_fast16_t;
662 typedef unsigned int uint_fast16_t;
571 typedef signed int int32_t; 663 typedef signed int int32_t;
572 typedef unsigned int uint32_t; 664 typedef unsigned int uint32_t;
665 typedef signed int int_fast32_t;
666 typedef unsigned int uint_fast32_t;
573 #if __GNUC__ 667 #if __GNUC__
574 typedef signed long long int64_t; 668 typedef signed long long int64_t;
575 typedef unsigned long long uint64_t; 669 typedef unsigned long long uint64_t;
576 #else /* _MSC_VER || __BORLANDC__ */ 670 #else /* _MSC_VER || __BORLANDC__ */
577 typedef signed __int64 int64_t; 671 typedef signed __int64 int64_t;
578 typedef unsigned __int64 uint64_t; 672 typedef unsigned __int64 uint64_t;
579 #endif 673 #endif
674 typedef int64_t int_fast64_t;
675 typedef uint64_t uint_fast64_t;
580 #ifdef _WIN64 676 #ifdef _WIN64
581 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
582 typedef uint64_t uintptr_t; 678 typedef uint64_t uintptr_t;
583 typedef int64_t intptr_t; 679 typedef int64_t intptr_t;
584 #else 680 #else
… …
595 #endif 691 #endif
596#endif 692#endif
597 693
598#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) 694#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
599#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) 695#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
696
697#ifndef ECB_OPTIMIZE_SIZE
698 #if __OPTIMIZE_SIZE__
699 #define ECB_OPTIMIZE_SIZE 1
700 #else
701 #define ECB_OPTIMIZE_SIZE 0
702 #endif
703#endif
600 704
601/* work around x32 idiocy by defining proper macros */ 705/* work around x32 idiocy by defining proper macros */
602#if ECB_GCC_AMD64 || ECB_MSVC_AMD64 706#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
603 #if _ILP32 707 #if _ILP32
604 #define ECB_AMD64_X32 1 708 #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); } 1215ecb_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); } 1216ecb_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); } 1217ecb_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); } 1218ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1115 1219
1220#if ECB_CPP
1221
1222inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); }
1223inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); }
1224inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); }
1225inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); }
1226
1227inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); }
1228inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); }
1229inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); }
1230inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); }
1231
1232inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); }
1233inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); }
1234inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); }
1235inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); }
1236
1237inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); }
1238inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); }
1239inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); }
1240inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); }
1241
1242inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); }
1243inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); }
1244inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); }
1245
1246inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); }
1247inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); }
1248inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); }
1249inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); }
1250
1251inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); }
1252inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); }
1253inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); }
1254inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); }
1255
1256#endif
1257
1116#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) 1258#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) 1259 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1118 #define ecb_bswap16(x) __builtin_bswap16 (x) 1260 #define ecb_bswap16(x) __builtin_bswap16 (x)
1119 #else 1261 #else
1120 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1262 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
… …
1191ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1333ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1192ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } 1334ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1193ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1335ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1194ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } 1336ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1195 1337
1338/*****************************************************************************/
1339/* unaligned load/store */
1340
1341ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1342ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1343ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1344
1345ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1346ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1347ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1348
1349ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1350ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1351ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1352
1353ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); }
1354ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); }
1355ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); }
1356
1357ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); }
1358ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); }
1359ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); }
1360
1361ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1362ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1363ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1364
1365ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1366ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1367ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1368
1369ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); }
1370ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); }
1371ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); }
1372
1373ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); }
1374ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); }
1375ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); }
1376
1377ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); }
1378ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); }
1379ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); }
1380
1381#if ECB_CPP
1382
1383inline uint8_t ecb_bswap (uint8_t v) { return v; }
1384inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); }
1385inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); }
1386inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); }
1387
1388template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1389template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1390template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; }
1391template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); }
1392template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); }
1393template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; }
1394template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); }
1395template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); }
1396
1397template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1398template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1399template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; }
1400template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); }
1401template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); }
1402template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); }
1403template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); }
1404template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); }
1405
1406#endif
1407
1408/*****************************************************************************/
1409
1196#if ECB_GCC_VERSION(3,0) || ECB_C99 1410#if ECB_GCC_VERSION(3,0) || ECB_C99
1197 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1411 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1198#else 1412#else
1199 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1413 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1200#endif 1414#endif
… …
1223 return N; 1437 return N;
1224 } 1438 }
1225#else 1439#else
1226 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1440 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1227#endif 1441#endif
1442
1443/*****************************************************************************/
1228 1444
1229ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); 1445ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1230ecb_function_ ecb_const uint32_t 1446ecb_function_ ecb_const uint32_t
1231ecb_binary16_to_binary32 (uint32_t x) 1447ecb_binary16_to_binary32 (uint32_t x)
1232{ 1448{
… …
1341 || defined __sh__ \ 1557 || defined __sh__ \
1342 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ 1558 || 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__)) \ 1559 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1344 || defined __aarch64__ 1560 || defined __aarch64__
1345 #define ECB_STDFP 1 1561 #define ECB_STDFP 1
1346 #include <string.h> /* for memcpy */
1347#else 1562#else
1348 #define ECB_STDFP 0 1563 #define ECB_STDFP 0
1349#endif 1564#endif
1350 1565
1351#ifndef ECB_NO_LIBM 1566#ifndef ECB_NO_LIBM
… …
1558# define inline_speed ecb_inline 1773# define inline_speed ecb_inline
1559#else 1774#else
1560# define inline_speed ecb_noinline static 1775# define inline_speed ecb_noinline static
1561#endif 1776#endif
1562 1777
1778/*****************************************************************************/
1779/* raw syscall wrappers */
1780
1781#if EV_NEED_SYSCALL
1782
1783#include <sys/syscall.h>
1784
1785/*
1786 * define some syscall wrappers for common architectures
1787 * this is mostly for nice looks during debugging, not performance.
1788 * our syscalls return < 0, not == -1, on error. which is good
1789 * enough for linux aio.
1790 * TODO: arm is also common nowadays, maybe even mips and x86
1791 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1792 */
1793#if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE
1794 /* the costly errno access probably kills this for size optimisation */
1795
1796 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1797 ({ \
1798 long res; \
1799 register unsigned long r6 __asm__ ("r9" ); \
1800 register unsigned long r5 __asm__ ("r8" ); \
1801 register unsigned long r4 __asm__ ("r10"); \
1802 register unsigned long r3 __asm__ ("rdx"); \
1803 register unsigned long r2 __asm__ ("rsi"); \
1804 register unsigned long r1 __asm__ ("rdi"); \
1805 if (narg >= 6) r6 = (unsigned long)(arg6); \
1806 if (narg >= 5) r5 = (unsigned long)(arg5); \
1807 if (narg >= 4) r4 = (unsigned long)(arg4); \
1808 if (narg >= 3) r3 = (unsigned long)(arg3); \
1809 if (narg >= 2) r2 = (unsigned long)(arg2); \
1810 if (narg >= 1) r1 = (unsigned long)(arg1); \
1811 __asm__ __volatile__ ( \
1812 "syscall\n\t" \
1813 : "=a" (res) \
1814 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1815 : "cc", "r11", "cx", "memory"); \
1816 errno = -res; \
1817 res; \
1818 })
1819
1820#endif
1821
1822#ifdef ev_syscall
1823 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1824 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1825 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1826 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1827 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1828 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1829 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1830#else
1831 #define ev_syscall0(nr) syscall (nr)
1832 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1833 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1834 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1835 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1836 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1837 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1838#endif
1839
1840#endif
1841
1842/*****************************************************************************/
1843
1563#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1844#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1564 1845
1565#if EV_MINPRI == EV_MAXPRI 1846#if EV_MINPRI == EV_MAXPRI
1566# define ABSPRI(w) (((W)w), 0) 1847# define ABSPRI(w) (((W)w), 0)
1567#else 1848#else
… …
1626 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1907 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1627#else 1908#else
1628 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1909 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1629#endif 1910#endif
1630 1911
1912 /* special treatment for negative arguments */
1913 if (ecb_expect_false (v < 0.))
1914 {
1915 ev_tstamp f = -ev_floor (-v);
1916
1917 return f - (f == v ? 0 : 1);
1918 }
1919
1631 /* argument too large for an unsigned long? */ 1920 /* argument too large for an unsigned long? then reduce it */
1632 if (ecb_expect_false (v >= shift)) 1921 if (ecb_expect_false (v >= shift))
1633 { 1922 {
1634 ev_tstamp f; 1923 ev_tstamp f;
1635 1924
1636 if (v == v - 1.) 1925 if (v == v - 1.)
1637 return v; /* very large number */ 1926 return v; /* very large numbers are assumed to be integer */
1638 1927
1639 f = shift * ev_floor (v * (1. / shift)); 1928 f = shift * ev_floor (v * (1. / shift));
1640 return f + ev_floor (v - f); 1929 return f + ev_floor (v - f);
1641 }
1642
1643 /* special treatment for negative args? */
1644 if (ecb_expect_false (v < 0.))
1645 {
1646 ev_tstamp f = -ev_floor (-v);
1647
1648 return f - (f == v ? 0 : 1);
1649 } 1930 }
1650 1931
1651 /* fits into an unsigned long */ 1932 /* fits into an unsigned long */
1652 return (unsigned long)v; 1933 return (unsigned long)v;
1653} 1934}
… …
1797{ 2078{
1798 WL head; 2079 WL head;
1799 unsigned char events; /* the events watched for */ 2080 unsigned char events; /* the events watched for */
1800 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 2081 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1801 unsigned char emask; /* some backends store the actual kernel mask in here */ 2082 unsigned char emask; /* some backends store the actual kernel mask in here */
1802 unsigned char unused; 2083 unsigned char eflags; /* flags field for use by backends */
1803#if EV_USE_EPOLL 2084#if EV_USE_EPOLL
1804 unsigned int egen; /* generation counter to counter epoll bugs */ 2085 unsigned int egen; /* generation counter to counter epoll bugs */
1805#endif 2086#endif
1806#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2087#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1807 SOCKET handle; 2088 SOCKET handle;
… …
1861 static struct ev_loop default_loop_struct; 2142 static struct ev_loop default_loop_struct;
1862 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 2143 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1863 2144
1864#else 2145#else
1865 2146
1866 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 2147 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1867 #define VAR(name,decl) static decl; 2148 #define VAR(name,decl) static decl;
1868 #include "ev_vars.h" 2149 #include "ev_vars.h"
1869 #undef VAR 2150 #undef VAR
1870 2151
1871 static int ev_default_loop_ptr; 2152 static int ev_default_loop_ptr;
… …
1893#if EV_USE_REALTIME 2174#if EV_USE_REALTIME
1894 if (ecb_expect_true (have_realtime)) 2175 if (ecb_expect_true (have_realtime))
1895 { 2176 {
1896 struct timespec ts; 2177 struct timespec ts;
1897 clock_gettime (CLOCK_REALTIME, &ts); 2178 clock_gettime (CLOCK_REALTIME, &ts);
1898 return ts.tv_sec + ts.tv_nsec * 1e-9; 2179 return EV_TS_GET (ts);
1899 } 2180 }
1900#endif 2181#endif
1901 2182
2183 {
1902 struct timeval tv; 2184 struct timeval tv;
1903 gettimeofday (&tv, 0); 2185 gettimeofday (&tv, 0);
1904 return tv.tv_sec + tv.tv_usec * 1e-6; 2186 return EV_TV_GET (tv);
2187 }
1905} 2188}
1906#endif 2189#endif
1907 2190
1908inline_size ev_tstamp 2191inline_size ev_tstamp
1909get_clock (void) 2192get_clock (void)
… …
1911#if EV_USE_MONOTONIC 2194#if EV_USE_MONOTONIC
1912 if (ecb_expect_true (have_monotonic)) 2195 if (ecb_expect_true (have_monotonic))
1913 { 2196 {
1914 struct timespec ts; 2197 struct timespec ts;
1915 clock_gettime (CLOCK_MONOTONIC, &ts); 2198 clock_gettime (CLOCK_MONOTONIC, &ts);
1916 return ts.tv_sec + ts.tv_nsec * 1e-9; 2199 return EV_TS_GET (ts);
1917 } 2200 }
1918#endif 2201#endif
1919 2202
1920 return ev_time (); 2203 return ev_time ();
1921} 2204}
… …
1929#endif 2212#endif
1930 2213
1931void 2214void
1932ev_sleep (ev_tstamp delay) EV_NOEXCEPT 2215ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1933{ 2216{
1934 if (delay > 0.) 2217 if (delay > EV_TS_CONST (0.))
1935 { 2218 {
1936#if EV_USE_NANOSLEEP 2219#if EV_USE_NANOSLEEP
1937 struct timespec ts; 2220 struct timespec ts;
1938 2221
1939 EV_TS_SET (ts, delay); 2222 EV_TS_SET (ts, delay);
1940 nanosleep (&ts, 0); 2223 nanosleep (&ts, 0);
1941#elif defined _WIN32 2224#elif defined _WIN32
1942 /* maybe this should round up, as ms is very low resolution */ 2225 /* maybe this should round up, as ms is very low resolution */
1943 /* compared to select (µs) or nanosleep (ns) */ 2226 /* compared to select (µs) or nanosleep (ns) */
1944 Sleep ((unsigned long)(delay * 1e3)); 2227 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1945#else 2228#else
1946 struct timeval tv; 2229 struct timeval tv;
1947 2230
1948 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2231 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1949 /* something not guaranteed by newer posix versions, but guaranteed */ 2232 /* something not guaranteed by newer posix versions, but guaranteed */
… …
2109inline_size void 2392inline_size void
2110fd_reify (EV_P) 2393fd_reify (EV_P)
2111{ 2394{
2112 int i; 2395 int i;
2113 2396
2397 /* most backends do not modify the fdchanges list in backend_modfiy.
2398 * except io_uring, which has fixed-size buffers which might force us
2399 * to handle events in backend_modify, causing fdchanges to be amended,
2400 * which could result in an endless loop.
2401 * to avoid this, we do not dynamically handle fds that were added
2402 * during fd_reify. that means that for those backends, fdchangecnt
2403 * might be non-zero during poll, which must cause them to not block.
2404 * to not put too much of a burden on other backends, this detail
2405 * needs to be handled in the backend.
2406 */
2407 int changecnt = fdchangecnt;
2408
2114#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2409#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2115 for (i = 0; i < fdchangecnt; ++i) 2410 for (i = 0; i < changecnt; ++i)
2116 { 2411 {
2117 int fd = fdchanges [i]; 2412 int fd = fdchanges [i];
2118 ANFD *anfd = anfds + fd; 2413 ANFD *anfd = anfds + fd;
2119 2414
2120 if (anfd->reify & EV__IOFDSET && anfd->head) 2415 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2134 } 2429 }
2135 } 2430 }
2136 } 2431 }
2137#endif 2432#endif
2138 2433
2139 for (i = 0; i < fdchangecnt; ++i) 2434 for (i = 0; i < changecnt; ++i)
2140 { 2435 {
2141 int fd = fdchanges [i]; 2436 int fd = fdchanges [i];
2142 ANFD *anfd = anfds + fd; 2437 ANFD *anfd = anfds + fd;
2143 ev_io *w; 2438 ev_io *w;
2144 2439
… …
2160 2455
2161 if (o_reify & EV__IOFDSET) 2456 if (o_reify & EV__IOFDSET)
2162 backend_modify (EV_A_ fd, o_events, anfd->events); 2457 backend_modify (EV_A_ fd, o_events, anfd->events);
2163 } 2458 }
2164 2459
2460 /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added.
2461 * this is a rare case (see beginning comment in this function), so we copy them to the
2462 * front and hope the backend handles this case.
2463 */
2464 if (ecb_expect_false (fdchangecnt != changecnt))
2465 memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges));
2466
2165 fdchangecnt = 0; 2467 fdchangecnt -= changecnt;
2166} 2468}
2167 2469
2168/* something about the given fd changed */ 2470/* something about the given fd changed */
2169inline_size 2471inline_size
2170void 2472void
… …
2299 2601
2300 /* find minimum child */ 2602 /* find minimum child */
2301 if (ecb_expect_true (pos + DHEAP - 1 < E)) 2603 if (ecb_expect_true (pos + DHEAP - 1 < E))
2302 { 2604 {
2303 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2605 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2304 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2606 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2305 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2607 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2306 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2608 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2307 } 2609 }
2308 else if (pos < E) 2610 else if (pos < E)
2309 { 2611 {
2310 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2612 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2311 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2613 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2312 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2614 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2313 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2615 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2314 } 2616 }
2315 else 2617 else
2316 break; 2618 break;
2317 2619
2318 if (ANHE_at (he) <= minat) 2620 if (ANHE_at (he) <= minat)
… …
2326 2628
2327 heap [k] = he; 2629 heap [k] = he;
2328 ev_active (ANHE_w (he)) = k; 2630 ev_active (ANHE_w (he)) = k;
2329} 2631}
2330 2632
2331#else /* 4HEAP */ 2633#else /* not 4HEAP */
2332 2634
2333#define HEAP0 1 2635#define HEAP0 1
2334#define HPARENT(k) ((k) >> 1) 2636#define HPARENT(k) ((k) >> 1)
2335#define UPHEAP_DONE(p,k) (!(p)) 2637#define UPHEAP_DONE(p,k) (!(p))
2336 2638
… …
2408 upheap (heap, i + HEAP0); 2710 upheap (heap, i + HEAP0);
2409} 2711}
2410 2712
2411/*****************************************************************************/ 2713/*****************************************************************************/
2412 2714
2413/* associate signal watchers to a signal signal */ 2715/* associate signal watchers to a signal */
2414typedef struct 2716typedef struct
2415{ 2717{
2416 EV_ATOMIC_T pending; 2718 EV_ATOMIC_T pending;
2417#if EV_MULTIPLICITY 2719#if EV_MULTIPLICITY
2418 EV_P; 2720 EV_P;
… …
2722 3024
2723#endif 3025#endif
2724 3026
2725/*****************************************************************************/ 3027/*****************************************************************************/
2726 3028
3029#if EV_USE_TIMERFD
3030
3031static void periodics_reschedule (EV_P);
3032
3033static void
3034timerfdcb (EV_P_ ev_io *iow, int revents)
3035{
3036 struct itimerspec its = { 0 };
3037
3038 its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2;
3039 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
3040
3041 ev_rt_now = ev_time ();
3042 /* periodics_reschedule only needs ev_rt_now */
3043 /* but maybe in the future we want the full treatment. */
3044 /*
3045 now_floor = EV_TS_CONST (0.);
3046 time_update (EV_A_ EV_TSTAMP_HUGE);
3047 */
3048 periodics_reschedule (EV_A);
3049}
3050
3051ecb_noinline ecb_cold
3052static void
3053evtimerfd_init (EV_P)
3054{
3055 if (!ev_is_active (&timerfd_w))
3056 {
3057 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
3058
3059 if (timerfd >= 0)
3060 {
3061 fd_intern (timerfd); /* just to be sure */
3062
3063 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
3064 ev_set_priority (&timerfd_w, EV_MINPRI);
3065 ev_io_start (EV_A_ &timerfd_w);
3066 ev_unref (EV_A); /* watcher should not keep loop alive */
3067
3068 /* (re-) arm timer */
3069 timerfdcb (EV_A_ 0, 0);
3070 }
3071 }
3072}
3073
3074#endif
3075
3076/*****************************************************************************/
3077
2727#if EV_USE_IOCP 3078#if EV_USE_IOCP
2728# include "ev_iocp.c" 3079# include "ev_iocp.c"
2729#endif 3080#endif
2730#if EV_USE_PORT 3081#if EV_USE_PORT
2731# include "ev_port.c" 3082# include "ev_port.c"
… …
2736#if EV_USE_EPOLL 3087#if EV_USE_EPOLL
2737# include "ev_epoll.c" 3088# include "ev_epoll.c"
2738#endif 3089#endif
2739#if EV_USE_LINUXAIO 3090#if EV_USE_LINUXAIO
2740# include "ev_linuxaio.c" 3091# include "ev_linuxaio.c"
3092#endif
3093#if EV_USE_IOURING
3094# include "ev_iouring.c"
2741#endif 3095#endif
2742#if EV_USE_POLL 3096#if EV_USE_POLL
2743# include "ev_poll.c" 3097# include "ev_poll.c"
2744#endif 3098#endif
2745#if EV_USE_SELECT 3099#if EV_USE_SELECT
… …
2774unsigned int 3128unsigned int
2775ev_supported_backends (void) EV_NOEXCEPT 3129ev_supported_backends (void) EV_NOEXCEPT
2776{ 3130{
2777 unsigned int flags = 0; 3131 unsigned int flags = 0;
2778 3132
2779 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3133 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2780 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; 3134 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2781 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3135 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2782 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; 3136 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2783 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3137 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2784 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; 3138 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2785 3139 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3140
2786 return flags; 3141 return flags;
2787} 3142}
2788 3143
2789ecb_cold 3144ecb_cold
2790unsigned int 3145unsigned int
… …
2808 3163
2809 /* TODO: linuxaio is very experimental */ 3164 /* TODO: linuxaio is very experimental */
2810#if !EV_RECOMMEND_LINUXAIO 3165#if !EV_RECOMMEND_LINUXAIO
2811 flags &= ~EVBACKEND_LINUXAIO; 3166 flags &= ~EVBACKEND_LINUXAIO;
2812#endif 3167#endif
3168 /* TODO: linuxaio is super experimental */
3169#if !EV_RECOMMEND_IOURING
3170 flags &= ~EVBACKEND_IOURING;
3171#endif
2813 3172
2814 return flags; 3173 return flags;
2815} 3174}
2816 3175
2817ecb_cold 3176ecb_cold
2818unsigned int 3177unsigned int
2819ev_embeddable_backends (void) EV_NOEXCEPT 3178ev_embeddable_backends (void) EV_NOEXCEPT
2820{ 3179{
2821 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2822 3181
2823 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2824 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 3183 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2825 flags &= ~EVBACKEND_EPOLL; 3184 flags &= ~EVBACKEND_EPOLL;
3185
3186 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
2826 3187
2827 return flags; 3188 return flags;
2828} 3189}
2829 3190
2830unsigned int 3191unsigned int
… …
2948 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3309 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2949#endif 3310#endif
2950#if EV_USE_SIGNALFD 3311#if EV_USE_SIGNALFD
2951 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3312 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2952#endif 3313#endif
3314#if EV_USE_TIMERFD
3315 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3316#endif
2953 3317
2954 if (!(flags & EVBACKEND_MASK)) 3318 if (!(flags & EVBACKEND_MASK))
2955 flags |= ev_recommended_backends (); 3319 flags |= ev_recommended_backends ();
2956 3320
2957#if EV_USE_IOCP 3321#if EV_USE_IOCP
… …
2960#if EV_USE_PORT 3324#if EV_USE_PORT
2961 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3325 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2962#endif 3326#endif
2963#if EV_USE_KQUEUE 3327#if EV_USE_KQUEUE
2964 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); 3328 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3329#endif
3330#if EV_USE_IOURING
3331 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
2965#endif 3332#endif
2966#if EV_USE_LINUXAIO 3333#if EV_USE_LINUXAIO
2967 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); 3334 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2968#endif 3335#endif
2969#if EV_USE_EPOLL 3336#if EV_USE_EPOLL
… …
3027#if EV_USE_SIGNALFD 3394#if EV_USE_SIGNALFD
3028 if (ev_is_active (&sigfd_w)) 3395 if (ev_is_active (&sigfd_w))
3029 close (sigfd); 3396 close (sigfd);
3030#endif 3397#endif
3031 3398
3399#if EV_USE_TIMERFD
3400 if (ev_is_active (&timerfd_w))
3401 close (timerfd);
3402#endif
3403
3032#if EV_USE_INOTIFY 3404#if EV_USE_INOTIFY
3033 if (fs_fd >= 0) 3405 if (fs_fd >= 0)
3034 close (fs_fd); 3406 close (fs_fd);
3035#endif 3407#endif
3036 3408
… …
3043#if EV_USE_PORT 3415#if EV_USE_PORT
3044 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3416 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3045#endif 3417#endif
3046#if EV_USE_KQUEUE 3418#if EV_USE_KQUEUE
3047 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); 3419 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3420#endif
3421#if EV_USE_IOURING
3422 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3048#endif 3423#endif
3049#if EV_USE_LINUXAIO 3424#if EV_USE_LINUXAIO
3050 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); 3425 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3051#endif 3426#endif
3052#if EV_USE_EPOLL 3427#if EV_USE_EPOLL
… …
3111 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3486 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3112#endif 3487#endif
3113#if EV_USE_KQUEUE 3488#if EV_USE_KQUEUE
3114 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); 3489 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3115#endif 3490#endif
3491#if EV_USE_IOURING
3492 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3493#endif
3116#if EV_USE_LINUXAIO 3494#if EV_USE_LINUXAIO
3117 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); 3495 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3118#endif 3496#endif
3119#if EV_USE_EPOLL 3497#if EV_USE_EPOLL
3120 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3498 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3121#endif 3499#endif
3122#if EV_USE_INOTIFY 3500#if EV_USE_INOTIFY
3123 infy_fork (EV_A); 3501 infy_fork (EV_A);
3124#endif 3502#endif
3125 3503
3504 if (postfork != 2)
3505 {
3506 #if EV_USE_SIGNALFD
3507 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3508 #endif
3509
3510 #if EV_USE_TIMERFD
3511 if (ev_is_active (&timerfd_w))
3512 {
3513 ev_ref (EV_A);
3514 ev_io_stop (EV_A_ &timerfd_w);
3515
3516 close (timerfd);
3517 timerfd = -2;
3518
3519 evtimerfd_init (EV_A);
3520 /* reschedule periodics, in case we missed something */
3521 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3522 }
3523 #endif
3524
3126#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3525 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3127 if (ev_is_active (&pipe_w) && postfork != 2) 3526 if (ev_is_active (&pipe_w))
3128 { 3527 {
3129 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3528 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
3130 3529
3131 ev_ref (EV_A); 3530 ev_ref (EV_A);
3132 ev_io_stop (EV_A_ &pipe_w); 3531 ev_io_stop (EV_A_ &pipe_w);
3133 3532
3134 if (evpipe [0] >= 0) 3533 if (evpipe [0] >= 0)
3135 EV_WIN32_CLOSE_FD (evpipe [0]); 3534 EV_WIN32_CLOSE_FD (evpipe [0]);
3136 3535
3137 evpipe_init (EV_A); 3536 evpipe_init (EV_A);
3138 /* iterate over everything, in case we missed something before */ 3537 /* iterate over everything, in case we missed something before */
3139 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3538 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3539 }
3540 #endif
3140 } 3541 }
3141#endif
3142 3542
3143 postfork = 0; 3543 postfork = 0;
3144} 3544}
3145 3545
3146#if EV_MULTIPLICITY 3546#if EV_MULTIPLICITY
… …
3416 { 3816 {
3417 ev_at (w) += w->repeat; 3817 ev_at (w) += w->repeat;
3418 if (ev_at (w) < mn_now) 3818 if (ev_at (w) < mn_now)
3419 ev_at (w) = mn_now; 3819 ev_at (w) = mn_now;
3420 3820
3421 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3821 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3422 3822
3423 ANHE_at_cache (timers [HEAP0]); 3823 ANHE_at_cache (timers [HEAP0]);
3424 downheap (timers, timercnt, HEAP0); 3824 downheap (timers, timercnt, HEAP0);
3425 } 3825 }
3426 else 3826 else
… …
3557 3957
3558 mn_now = get_clock (); 3958 mn_now = get_clock ();
3559 3959
3560 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3960 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3561 /* interpolate in the meantime */ 3961 /* interpolate in the meantime */
3562 if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3962 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3563 { 3963 {
3564 ev_rt_now = rtmn_diff + mn_now; 3964 ev_rt_now = rtmn_diff + mn_now;
3565 return; 3965 return;
3566 } 3966 }
3567 3967
… …
3581 ev_tstamp diff; 3981 ev_tstamp diff;
3582 rtmn_diff = ev_rt_now - mn_now; 3982 rtmn_diff = ev_rt_now - mn_now;
3583 3983
3584 diff = odiff - rtmn_diff; 3984 diff = odiff - rtmn_diff;
3585 3985
3586 if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3986 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3587 return; /* all is well */ 3987 return; /* all is well */
3588 3988
3589 ev_rt_now = ev_time (); 3989 ev_rt_now = ev_time ();
3590 mn_now = get_clock (); 3990 mn_now = get_clock ();
3591 now_floor = mn_now; 3991 now_floor = mn_now;
… …
3600 else 4000 else
3601#endif 4001#endif
3602 { 4002 {
3603 ev_rt_now = ev_time (); 4003 ev_rt_now = ev_time ();
3604 4004
3605 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 4005 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3606 { 4006 {
3607 /* adjust timers. this is easy, as the offset is the same for all of them */ 4007 /* adjust timers. this is easy, as the offset is the same for all of them */
3608 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4008 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3609#if EV_PERIODIC_ENABLE 4009#if EV_PERIODIC_ENABLE
3610 periodics_reschedule (EV_A); 4010 periodics_reschedule (EV_A);
… …
3679 4079
3680 /* remember old timestamp for io_blocktime calculation */ 4080 /* remember old timestamp for io_blocktime calculation */
3681 ev_tstamp prev_mn_now = mn_now; 4081 ev_tstamp prev_mn_now = mn_now;
3682 4082
3683 /* update time to cancel out callback processing overhead */ 4083 /* update time to cancel out callback processing overhead */
3684 time_update (EV_A_ 1e100); 4084 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3685 4085
3686 /* from now on, we want a pipe-wake-up */ 4086 /* from now on, we want a pipe-wake-up */
3687 pipe_write_wanted = 1; 4087 pipe_write_wanted = 1;
3688 4088
3689 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 4089 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3690 4090
3691 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4091 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3692 { 4092 {
3693 waittime = MAX_BLOCKTIME; 4093 waittime = EV_TS_CONST (MAX_BLOCKTIME);
4094
4095#if EV_USE_TIMERFD
4096 /* sleep a lot longer when we can reliably detect timejumps */
4097 if (ecb_expect_true (timerfd >= 0))
4098 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4099#endif
3694 4100
3695 if (timercnt) 4101 if (timercnt)
3696 { 4102 {
3697 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4103 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3698 if (waittime > to) waittime = to; 4104 if (waittime > to) waittime = to;
… …
3708 4114
3709 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4115 /* don't let timeouts decrease the waittime below timeout_blocktime */
3710 if (ecb_expect_false (waittime < timeout_blocktime)) 4116 if (ecb_expect_false (waittime < timeout_blocktime))
3711 waittime = timeout_blocktime; 4117 waittime = timeout_blocktime;
3712 4118
3713 /* at this point, we NEED to wait, so we have to ensure */ 4119 /* now there are two more special cases left, either we have
3714 /* to pass a minimum nonzero value to the backend */ 4120 * already-expired timers, so we should not sleep, or we have timers
4121 * that expire very soon, in which case we need to wait for a minimum
4122 * amount of time for some event loop backends.
4123 */
3715 if (ecb_expect_false (waittime < backend_mintime)) 4124 if (ecb_expect_false (waittime < backend_mintime))
4125 waittime = waittime <= EV_TS_CONST (0.)
4126 ? EV_TS_CONST (0.)
3716 waittime = backend_mintime; 4127 : backend_mintime;
3717 4128
3718 /* extra check because io_blocktime is commonly 0 */ 4129 /* extra check because io_blocktime is commonly 0 */
3719 if (ecb_expect_false (io_blocktime)) 4130 if (ecb_expect_false (io_blocktime))
3720 { 4131 {
3721 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4132 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3722 4133
3723 if (sleeptime > waittime - backend_mintime) 4134 if (sleeptime > waittime - backend_mintime)
3724 sleeptime = waittime - backend_mintime; 4135 sleeptime = waittime - backend_mintime;
3725 4136
3726 if (ecb_expect_true (sleeptime > 0.)) 4137 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3727 { 4138 {
3728 ev_sleep (sleeptime); 4139 ev_sleep (sleeptime);
3729 waittime -= sleeptime; 4140 waittime -= sleeptime;
3730 } 4141 }
3731 } 4142 }
… …
3805} 4216}
3806 4217
3807void 4218void
3808ev_now_update (EV_P) EV_NOEXCEPT 4219ev_now_update (EV_P) EV_NOEXCEPT
3809{ 4220{
3810 time_update (EV_A_ 1e100); 4221 time_update (EV_A_ EV_TSTAMP_HUGE);
3811} 4222}
3812 4223
3813void 4224void
3814ev_suspend (EV_P) EV_NOEXCEPT 4225ev_suspend (EV_P) EV_NOEXCEPT
3815{ 4226{
… …
4046} 4457}
4047 4458
4048ev_tstamp 4459ev_tstamp
4049ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT 4460ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
4050{ 4461{
4051 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4462 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
4052} 4463}
4053 4464
4054#if EV_PERIODIC_ENABLE 4465#if EV_PERIODIC_ENABLE
4055ecb_noinline 4466ecb_noinline
4056void 4467void
4057ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT 4468ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4058{ 4469{
4059 if (ecb_expect_false (ev_is_active (w))) 4470 if (ecb_expect_false (ev_is_active (w)))
4060 return; 4471 return;
4472
4473#if EV_USE_TIMERFD
4474 if (timerfd == -2)
4475 evtimerfd_init (EV_A);
4476#endif
4061 4477
4062 if (w->reschedule_cb) 4478 if (w->reschedule_cb)
4063 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4479 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4064 else if (w->interval) 4480 else if (w->interval)
4065 { 4481 {
… …
4807 ev_run (EV_A_ EVRUN_NOWAIT); 5223 ev_run (EV_A_ EVRUN_NOWAIT);
4808 } 5224 }
4809 } 5225 }
4810} 5226}
4811 5227
5228#if EV_FORK_ENABLE
4812static void 5229static void
4813embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5230embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4814{ 5231{
4815 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5232 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4816 5233
… …
4823 ev_run (EV_A_ EVRUN_NOWAIT); 5240 ev_run (EV_A_ EVRUN_NOWAIT);
4824 } 5241 }
4825 5242
4826 ev_embed_start (EV_A_ w); 5243 ev_embed_start (EV_A_ w);
4827} 5244}
5245#endif
4828 5246
4829#if 0 5247#if 0
4830static void 5248static void
4831embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5249embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4832{ 5250{
… …
4853 5271
4854 ev_prepare_init (&w->prepare, embed_prepare_cb); 5272 ev_prepare_init (&w->prepare, embed_prepare_cb);
4855 ev_set_priority (&w->prepare, EV_MINPRI); 5273 ev_set_priority (&w->prepare, EV_MINPRI);
4856 ev_prepare_start (EV_A_ &w->prepare); 5274 ev_prepare_start (EV_A_ &w->prepare);
4857 5275
5276#if EV_FORK_ENABLE
4858 ev_fork_init (&w->fork, embed_fork_cb); 5277 ev_fork_init (&w->fork, embed_fork_cb);
4859 ev_fork_start (EV_A_ &w->fork); 5278 ev_fork_start (EV_A_ &w->fork);
5279#endif
4860 5280
4861 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5281 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4862 5282
4863 ev_start (EV_A_ (W)w, 1); 5283 ev_start (EV_A_ (W)w, 1);
4864 5284
… …
4874 5294
4875 EV_FREQUENT_CHECK; 5295 EV_FREQUENT_CHECK;
4876 5296
4877 ev_io_stop (EV_A_ &w->io); 5297 ev_io_stop (EV_A_ &w->io);
4878 ev_prepare_stop (EV_A_ &w->prepare); 5298 ev_prepare_stop (EV_A_ &w->prepare);
5299#if EV_FORK_ENABLE
4879 ev_fork_stop (EV_A_ &w->fork); 5300 ev_fork_stop (EV_A_ &w->fork);
5301#endif
4880 5302
4881 ev_stop (EV_A_ (W)w); 5303 ev_stop (EV_A_ (W)w);
4882 5304
4883 EV_FREQUENT_CHECK; 5305 EV_FREQUENT_CHECK;
4884} 5306}

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