Enum queen_io::sys::timerfd::SetTimeFlags

pub enum SetTimeFlags {
    Default,
    Abstime,
    TimerCancelOnSet,
}

Variants

Default

Flags to timerfd_settime(2).

The default is zero, i. e. all bits unset.

Abstime

Interpret new_value.it_value as an absolute value on the timer's clock. The timer will expire when the value of the timer's clock reaches the value specified in new_value.it_value.

TimerCancelOnSet

If this flag is specified along with TFD_TIMER_ABSTIME and the clock for this timer is CLOCK_REALTIME or CLOCK_REALTIME_ALARM, then mark this timer as cancelable if the real-time clock undergoes a discontinuous change (settimeofday(2), clock_settime(2), or similar). When such changes occur, a current or future read(2) from the file descriptor will fail with the error ECANCELED.

TFD_TIMER_CANCEL_ON_SET is useless without TFD_TIMER_ABSTIME set, cf. fs/timerfd.c. Thus TimerCancelOnSet`` implies Abstime`.

Trait Implementations

impl Clone for SetTimeFlags

fn clone(&self) -> SetTimeFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SetTimeFlags

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

Formats the value using the given formatter.

impl Eq for SetTimeFlags

impl PartialEq<SetTimeFlags> for SetTimeFlags

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for SetTimeFlags

impl StructuralPartialEq for SetTimeFlags