Struct SurfacePublication 

pub struct SurfacePublication { /* private fields */ }

What the broker holds of one connection’s surface, as the publisher last sent it.

Implementations

impl SurfacePublication

pub fn next( prior: Option<(&SurfacePublication, &[ActionDescriptor])>, descriptors: &[ActionDescriptor], ) -> (SurfaceDelta, SurfacePublication)

The delta from prior (what the broker holds, with the descriptors it was built from) to descriptors, and the state once it is applied. Without a prior the delta is a reset: the broker discards whatever it holds. Nothing is remembered until the caller keeps the returned state, so a delta that was not sent changes nothing.

pub fn indices(&self, resource: &str) -> Option<&[usize]>

Where the actions of the published resource resource sit in the descriptors this state was built from.

pub fn relabel( &mut self, descriptors: &[ActionDescriptor], changed: &[&str], ) -> Option<SurfaceDelta>

The delta for resources whose own fields (a label) changed in descriptors, which are the descriptors this state was built from with only those fields patched; the state is then that delta applied. Costs what the changed resources hold, whatever the surface. None, changing nothing, when one of them is not published.

Trait Implementations

impl Default for SurfacePublication

fn default() -> SurfacePublication

Returns the “default value” for a type.