| 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 | * |
| … | |
… | |
| 491 | # endif |
491 | # endif |
| 492 | #endif |
492 | #endif |
| 493 | |
493 | |
| 494 | #if EV_USE_IOURING |
494 | #if EV_USE_IOURING |
| 495 | # include <sys/syscall.h> |
495 | # include <sys/syscall.h> |
| 496 | # if !SYS_io_uring_setup && __linux && !__alpha |
496 | # if !SYS_io_uring_register && __linux && !__alpha |
| 497 | # define SYS_io_uring_setup 425 |
497 | # define SYS_io_uring_setup 425 |
| 498 | # define SYS_io_uring_enter 426 |
498 | # define SYS_io_uring_enter 426 |
| 499 | # define SYS_io_uring_wregister 427 |
499 | # define SYS_io_uring_register 427 |
| 500 | # endif |
500 | # endif |
| 501 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
501 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
| 502 | # define EV_NEED_SYSCALL 1 |
502 | # define EV_NEED_SYSCALL 1 |
| 503 | # else |
503 | # else |
| 504 | # undef EV_USE_IOURING |
504 | # undef EV_USE_IOURING |
| … | |
… | |
| 649 | /* 16 bits major, 16 bits minor */ |
649 | /* 16 bits major, 16 bits minor */ |
| 650 | #define ECB_VERSION 0x00010008 |
650 | #define ECB_VERSION 0x00010008 |
| 651 | |
651 | |
| 652 | #include <string.h> /* for memcpy */ |
652 | #include <string.h> /* for memcpy */ |
| 653 | |
653 | |
| 654 | #ifdef _WIN32 |
654 | #if defined (_WIN32) && !defined (__MINGW32__) |
| 655 | typedef signed char int8_t; |
655 | typedef signed char int8_t; |
| 656 | typedef unsigned char uint8_t; |
656 | typedef unsigned char uint8_t; |
| 657 | typedef signed char int_fast8_t; |
657 | typedef signed char int_fast8_t; |
| 658 | typedef unsigned char uint_fast8_t; |
658 | typedef unsigned char uint_fast8_t; |
| 659 | typedef signed short int16_t; |
659 | typedef signed short int16_t; |
| … | |
… | |
| 3165 | |
3165 | |
| 3166 | /* TODO: linuxaio is very experimental */ |
3166 | /* TODO: linuxaio is very experimental */ |
| 3167 | #if !EV_RECOMMEND_LINUXAIO |
3167 | #if !EV_RECOMMEND_LINUXAIO |
| 3168 | flags &= ~EVBACKEND_LINUXAIO; |
3168 | flags &= ~EVBACKEND_LINUXAIO; |
| 3169 | #endif |
3169 | #endif |
| 3170 | /* TODO: linuxaio is super experimental */ |
3170 | /* TODO: iouring is super experimental */ |
| 3171 | #if !EV_RECOMMEND_IOURING |
3171 | #if !EV_RECOMMEND_IOURING |
| 3172 | flags &= ~EVBACKEND_IOURING; |
3172 | flags &= ~EVBACKEND_IOURING; |
| 3173 | #endif |
3173 | #endif |
| 3174 | |
3174 | |
| 3175 | return flags; |
3175 | return flags; |
| … | |
… | |
| 4092 | |
4092 | |
| 4093 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
4093 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
| 4094 | { |
4094 | { |
| 4095 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
4095 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
| 4096 | |
4096 | |
|
|
4097 | #if EV_USE_MONOTONIC |
|
|
4098 | if (ecb_expect_true (have_monotonic)) |
|
|
4099 | { |
| 4097 | #if EV_USE_TIMERFD |
4100 | #if EV_USE_TIMERFD |
| 4098 | /* sleep a lot longer when we can reliably detect timejumps */ |
4101 | /* sleep a lot longer when we can reliably detect timejumps */ |
| 4099 | if (ecb_expect_true (timerfd >= 0)) |
4102 | if (ecb_expect_true (timerfd != -1)) |
| 4100 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
4103 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
| 4101 | #endif |
4104 | #endif |
| 4102 | #if !EV_PERIODIC_ENABLE |
4105 | #if !EV_PERIODIC_ENABLE |
| 4103 | /* without periodics but with monotonic clock there is no need */ |
4106 | /* without periodics but with monotonic clock there is no need */ |
| 4104 | /* for any time jump detection, so sleep longer */ |
4107 | /* for any time jump detection, so sleep longer */ |
| 4105 | if (ecb_expect_true (have_monotonic)) |
|
|
| 4106 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
4108 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
|
|
4109 | #endif |
|
|
4110 | } |
| 4107 | #endif |
4111 | #endif |
| 4108 | |
4112 | |
| 4109 | if (timercnt) |
4113 | if (timercnt) |
| 4110 | { |
4114 | { |
| 4111 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
4115 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
