Struct PerfBufferBuilder

pub struct PerfBufferBuilder<'a, 'b, M>
where
    M: MapCore,
{ /* private fields */ }

Builds PerfBuffer instances.

Implementations

impl<'a, M> PerfBufferBuilder<'a, '_, M>

where M: MapCore,

pub fn new(map: &'a M) -> Self

Create a new PerfBufferBuilder using the provided MapCore object.

impl<'a, 'b, M> PerfBufferBuilder<'a, 'b, M>

where M: MapCore,

pub fn sample_cb<F>(self, cb: F) -> PerfBufferBuilder<'a, 'b, M>

where F: FnMut(i32, &[u8]) + 'b,

Callback to run when a sample is received.

This callback provides a raw byte slice. You may find libraries such as plain helpful.

Callback arguments are: (cpu, data).

pub fn lost_cb<F>(self, cb: F) -> PerfBufferBuilder<'a, 'b, M>

where F: FnMut(i32, u64) + 'b,

Callback to run when a sample is received.

Callback arguments are: (cpu, lost_count).

pub fn pages(self, pages: usize) -> PerfBufferBuilder<'a, 'b, M>

The number of pages to size the ring buffer.

pub fn build(self) -> Result<PerfBuffer<'b>>

Build the PerfBuffer object as configured.

Trait Implementations

impl<M> Debug for PerfBufferBuilder<'_, '_, M>

where M: MapCore,

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

Formats the value using the given formatter.