Struct perf_event_data::ReadValue

pub struct ReadValue { /* private fields */ }

Data read from a counter.

Implementations

impl ReadValue

pub fn from_group_and_entry(group: &ReadGroup<'_>, entry: &GroupEntry) -> Self

Create a ReadValue from a ReadGroup and its entry within that group.

pub fn value(&self) -> u64

The value of the counter.

pub fn time_enabled(&self) -> Option<u64>

The duration for which this event was enabled, in nanoseconds.

pub fn time_running(&self) -> Option<u64>

The duration for which this event was running, in nanoseconds.

This will be less than time_enabled if the kernel ended up having to multiplex multiple counters on the CPU.

pub fn id(&self) -> Option<u64>

The kernel-assigned unique ID for the counter.

pub fn lost(&self) -> Option<u64>

The number of lost samples of this event.

Trait Implementations

impl Clone for ReadValue

fn clone(&self) -> ReadValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ReadValue

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

Formats the value using the given formatter.

impl<'a> From<ReadValue> for ReadGroup<'a>

fn from(value: ReadValue) -> Self

Converts to this type from the input type.

impl<'p> Parse<'p> for ReadValue

fn parse<B, E>(p: &mut Parser<B, E>) -> ParseResult<Self>where E: Endian, B: ParseBuf<'p>,

Parse Self using the provided Parser instance.

impl TryFrom<ReadGroup<'_>> for ReadValue

type Error = TryFromGroupError

The type returned in the event of a conversion error.

fn try_from(value: ReadGroup<'_>) -> Result<Self, Self::Error>

Performs the conversion.