Struct perf_event_data::ReadGroup

pub struct ReadGroup<'a> { /* private fields */ }

The values read from a group of counters.

Implementations

impl<'a> ReadGroup<'a>

pub fn len(&self) -> usize

The number of counters contained within this group.

pub fn is_empty(&self) -> bool

Whether this group has any counters at all.

pub fn into_owned(self) -> ReadGroup<'static>

Convert all the borrowed data in this ReadGroup into owned data.

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 get(&self, index: usize) -> Option<GroupEntry>

Get a group entry by its index.

pub fn get_by_id(&self, id: u64) -> Option<GroupEntry>

Get a group entry by its counter id.

pub fn entries(&self) -> GroupIter<'_>

Iterate over the entries contained within this GroupRead.

Trait Implementations

impl<'a> Clone for ReadGroup<'a>

fn clone(&self) -> ReadGroup<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ReadGroup<'_>

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 ReadGroup<'p>

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.