Enum timerfd::ClockId

pub enum ClockId {
    Realtime,
    RealtimeAlarm,
    Monotonic,
    Boottime,
    BoottimeAlarm,
}

Variants

Realtime

Available clocks:

A settable system-wide real-time clock.

RealtimeAlarm

This clock is like CLOCK_REALTIME, but will wake the system if it is suspended. The caller must have the CAP_WAKE_ALARM capability in order to set a timer against this clock.

Monotonic

A nonsettable monotonically increasing clock that measures time from some unspecified point in the past that does not change after system startup.

Boottime

Like CLOCK_MONOTONIC, this is a monotonically increasing clock. However, whereas the CLOCK_MONOTONIC clock does not measure the time while a system is suspended, the CLOCK_BOOTTIME clock does include the time during which the system is suspended. This is useful for applications that need to be suspend-aware. CLOCK_REALTIME is not suitable for such applications, since that clock is affected by discon‐ tinuous changes to the system clock.

BoottimeAlarm

This clock is like CLOCK_BOOTTIME, but will wake the system if it is suspended. The caller must have the CAP_WAKE_ALARM capability in order to set a timer against this clock.

Trait Implementations

impl Clone for ClockId

fn clone(&self) -> ClockId

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ClockId

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ClockId

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<ClockId> for ClockId

fn eq(&self, other: &ClockId) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ClockId

impl StructuralEq for ClockId

impl StructuralPartialEq for ClockId