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use crate::backend::c;
use bitflags::bitflags;
/// `struct itimerspec` for use with [`timerfd_gettime`] and
/// [`timerfd_settime`].
///
/// [`timerfd_gettime`]: crate::time::timerfd_gettime
/// [`timerfd_settime`]: crate::time::timerfd_settime
pub type Itimerspec = linux_raw_sys::general::__kernel_itimerspec;
bitflags! {
/// `TFD_*` flags for use with [`timerfd_create`].
///
/// [`timerfd_create`]: crate::time::timerfd_create
#[repr(transparent)]
#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
pub struct TimerfdFlags: c::c_uint {
/// `TFD_NONBLOCK`
const NONBLOCK = linux_raw_sys::general::TFD_NONBLOCK;
/// `TFD_CLOEXEC`
const CLOEXEC = linux_raw_sys::general::TFD_CLOEXEC;
/// <https://docs.rs/bitflags/latest/bitflags/#externally-defined-flags>
const _ = !0;
}
}
bitflags! {
/// `TFD_TIMER_*` flags for use with [`timerfd_settime`].
///
/// [`timerfd_settime`]: crate::time::timerfd_settime
#[repr(transparent)]
#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
pub struct TimerfdTimerFlags: c::c_uint {
/// `TFD_TIMER_ABSTIME`
const ABSTIME = linux_raw_sys::general::TFD_TIMER_ABSTIME;
/// `TFD_TIMER_CANCEL_ON_SET`
const CANCEL_ON_SET = linux_raw_sys::general::TFD_TIMER_CANCEL_ON_SET;
/// <https://docs.rs/bitflags/latest/bitflags/#externally-defined-flags>
const _ = !0;
}
}
/// `CLOCK_*` constants for use with [`timerfd_create`].
///
/// [`timerfd_create`]: crate::time::timerfd_create
#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
#[repr(u32)]
#[non_exhaustive]
pub enum TimerfdClockId {
/// `CLOCK_REALTIME`—A clock that tells the “real” time.
///
/// This is a clock that tells the amount of time elapsed since the Unix
/// epoch, 1970-01-01T00:00:00Z. The clock is externally settable, so it is
/// not monotonic. Successive reads may see decreasing times, so it isn't
/// reliable for measuring durations.
Realtime = linux_raw_sys::general::CLOCK_REALTIME,
/// `CLOCK_MONOTONIC`—A clock that tells an abstract time.
///
/// Unlike `Realtime`, this clock is not based on a fixed known epoch, so
/// individual times aren't meaningful. However, since it isn't settable,
/// it is reliable for measuring durations.
///
/// This clock does not advance while the system is suspended; see
/// `Boottime` for a clock that does.
Monotonic = linux_raw_sys::general::CLOCK_MONOTONIC,
/// `CLOCK_BOOTTIME`—Like `Monotonic`, but advances while suspended.
///
/// This clock is similar to `Monotonic`, but does advance while the system
/// is suspended.
Boottime = linux_raw_sys::general::CLOCK_BOOTTIME,
/// `CLOCK_REALTIME_ALARM`—Like `Realtime`, but wakes a suspended system.
///
/// This clock is like `Realtime`, but can wake up a suspended system.
///
/// Use of this clock requires the `CAP_WAKE_ALARM` Linux capability.
RealtimeAlarm = linux_raw_sys::general::CLOCK_REALTIME_ALARM,
/// `CLOCK_BOOTTIME_ALARM`—Like `Boottime`, but wakes a suspended system.
///
/// This clock is like `Boottime`, but can wake up a suspended system.
///
/// Use of this clock requires the `CAP_WAKE_ALARM` Linux capability.
BoottimeAlarm = linux_raw_sys::general::CLOCK_BOOTTIME_ALARM,
}
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