Trait nrf_softdevice::ble::gatt_client::Client

pub trait Client {
    type Event;

    // Required methods
    fn on_hvx(
        &self,
        conn: &Connection,
        type_: HvxType,
        handle: u16,
        data: &[u8]
    ) -> Option<Self::Event>;
    fn uuid() -> Uuid;
    fn new_undiscovered(conn: Connection) -> Self;
    fn discovered_characteristic(
        &mut self,
        characteristic: &Characteristic,
        descriptors: &[Descriptor]
    );
    fn discovery_complete(&mut self) -> Result<(), DiscoverError>;
}

Trait for implementing GATT clients.

Required Associated Types

type Event

Required Methods

fn on_hvx( &self, conn: &Connection, type_: HvxType, handle: u16, data: &[u8] ) -> Option<Self::Event>

Handles notification and indication events from the GATT server.

fn uuid() -> Uuid

Get the UUID of the GATT service. This is used by discover to search for the service in the GATT server.

fn new_undiscovered(conn: Connection) -> Self

Create a new instance in a “not-yet-discovered” state.

fn discovered_characteristic( &mut self, characteristic: &Characteristic, descriptors: &[Descriptor] )

Called by discover for every discovered characteristic. Implementations must check if they’re interested in the UUID of the characteristic, and save their handles if needed.

fn discovery_complete(&mut self) -> Result<(), DiscoverError>

Called by discover at the end of the discovery procedure. Implementations must check that all required characteristics have been discovered, and return DiscoverError::ServiceIncomplete otherwise.

If no error is returned, this instance is considered ready to use and is returned to the caller of discover

Object Safety

This trait is not object safe.

Implementors