Struct BindContext 

pub struct BindContext<'a> { /* private fields */ }

Handed to a sensor during binding so it can declare what it will observe.

Sensors may declare entities of their own, not only channels. A thermal zone and a RAPL power domain are real parts of the machine that the CPU topology knows nothing about, and forcing them to be attributes of a core would be exactly the human-ontology imposition this architecture avoids.

Implementations

impl<'a> BindContext<'a>

pub fn new( substrate: &'a Substrate, sensor: SensorId, entities: &'a mut Vec<Entity>, channels: &'a mut Vec<ChannelSpec>, relations: &'a mut Vec<Relation>, ) -> BindContext<'a>

pub fn substrate(&self) -> &Substrate

The structural machine description, including filesystem roots.

pub fn row_of(&self, key: &str) -> Option<u32>

Row index of an already-declared entity, by natural key.

pub fn declare_entity(&mut self, entity: Entity) -> u32

Declare an entity, or return the existing row if its key is already present. Idempotent, so two sensors observing the same physical thing agree about which row it is rather than duplicating it.

pub fn declare_channel( &mut self, key: impl Into<String>, unit: Unit, semantics: Semantics, ) -> ChannelId

Declare a channel and get its column index.

pub fn declare_relation(&mut self, relation: Relation)

Declare an edge.