Enum DataChannelRequest

pub enum DataChannelRequest {
    Register {
        event: Event,
        responder: DataChannelRegisterResponder,
    },
    GetIdentifier {
        responder: DataChannelGetIdentifierResponder,
    },
    Read {
        payload: DataChannelReadRequest,
        responder: DataChannelReadResponder,
    },
    Write {
        payload: DataChannelWriteRequest,
        responder: DataChannelWriteResponder,
    },
    #[non_exhaustive]
    _UnknownMethod {
        ordinal: u64,
        control_handle: DataChannelControlHandle,
        method_type: MethodType,
    },
}

Variants

Register

Set event used to signal device state. Discards existing event after having transferred device state to the new event. This must be called before invoking Read or Write, and can fail with ZX_ERR_NO_RESOURCES if the underlying channel is busy.

Fields

event: Event

responder: DataChannelRegisterResponder

GetIdentifier

Returns the identifier associated with this connection.

Fields

responder: DataChannelGetIdentifierResponder

Read

The call will return the next datagram to be read from the channel. If there is more data to be read, SIGNAL_READABLE will remain asserted after this call returns.

Fields

payload: DataChannelReadRequest

responder: DataChannelReadResponder

Write

The call will return once the data is fully committed.

If the driver is not ready for a write, it will return ZX_ERR_NO_RESOURCES and the caller should await SIGNAL_WRITABLE to be asserted.

Fields

payload: DataChannelWriteRequest

responder: DataChannelWriteResponder

_UnknownMethod

An interaction was received which does not match any known method.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

ordinal: u64

Ordinal of the method that was called.

control_handle: DataChannelControlHandle

method_type: MethodType

Implementations

impl DataChannelRequest

pub fn into_register(self) -> Option<(Event, DataChannelRegisterResponder)>

pub fn into_get_identifier(self) -> Option<DataChannelGetIdentifierResponder>

pub fn into_read( self, ) -> Option<(DataChannelReadRequest, DataChannelReadResponder)>

pub fn into_write( self, ) -> Option<(DataChannelWriteRequest, DataChannelWriteResponder)>

pub fn method_name(&self) -> &'static str

Name of the method defined in FIDL

Trait Implementations

impl Debug for DataChannelRequest

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

Formats the value using the given formatter.