Trait ResourceCounterContext 

pub trait ResourceCounterContext<R, T>: CounterContext<T> {
    // Required method
    fn per_resource_counters<'a>(&'a self, resource: &'a R) -> &'a T;

    // Provided methods
    fn increment_both<F: Fn(&T) -> &Counter>(&self, resource: &R, cb: F) { ... }
    fn add_both<F: Fn(&T) -> &Counter>(&self, resource: &R, value: u64, cb: F) { ... }
    fn add_both_usize<F: Fn(&T) -> &Counter>(
        &self,
        resource: &R,
        value: usize,
        cb: F,
    ) { ... }
}

A context that provides access to per-resource counters for observation and debugging.

Required Methods

fn per_resource_counters<'a>(&'a self, resource: &'a R) -> &'a T

Returns a reference to the set of counters on resource.

Provided Methods

fn increment_both<F: Fn(&T) -> &Counter>(&self, resource: &R, cb: F)

Increments both the per-resource and stackwide versions of the counter returned by the callback.

fn add_both<F: Fn(&T) -> &Counter>(&self, resource: &R, value: u64, cb: F)

Adds value to both the per-resource and stackwide versions of the counter returned by the callback.

fn add_both_usize<F: Fn(&T) -> &Counter>( &self, resource: &R, value: usize, cb: F, )

Like add_both but takes a usize value, saturating to u64::max if conversion fails.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<C, S, R, Meta, DeviceId> ResourceCounterContext<R, C> for FakeCoreCtx<S, Meta, DeviceId>

where S: ResourceCounterContext<R, C>,

impl<P, R, C> ResourceCounterContext<R, C> for UninstantiableWrapper<P>