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".

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>