Struct Provider 

pub struct Provider { /* private fields */ }

A backend a program could be given: what the matrix is asked about, what it declares about durability, and what endpoint it needs to be opened.

Implementations

impl Provider

pub fn new( name: impl Into<String>, surfaces: Vec<Surface>, declared: Option<Declared>, endpoint: EndpointSpec, ) -> Self

A provider called name (unique within its table). surfaces must not be empty: the first is the primary one, the layer a program talks to, which rank matches speed rows on.

Panics

If surfaces is empty: a provider with nothing to look up could satisfy anything.

pub fn name(&self) -> &str

The provider’s name.

pub fn surfaces(&self) -> &[Surface]

Where the matrix is asked, primary first.

pub fn primary(&self) -> &Surface

The primary surface.

pub fn declared(&self) -> Option<Declared>

Declared durability, if the provider’s table has one. None is unknown, not volatile.

pub fn endpoint(&self) -> &EndpointSpec

What it needs to open.

Trait Implementations

impl Clone for Provider

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Provider

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

Formats the value using the given formatter.

impl Eq for Provider

impl PartialEq for Provider

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Provider