Struct mz_coord::coord::ConnMeta

struct ConnMeta {
    cancel_tx: Arc<Sender<Canceled>>,
    secret_key: u32,
}

Metadata about an active connection.

Fields

cancel_tx: Arc<Sender<Canceled>>

A watch channel shared with the client to inform the client of cancellation requests. The coordinator sets the contained value to Canceled::Canceled whenever it receives a cancellation request that targets this connection. It is the client’s responsibility to check this value when appropriate and to reset the value to Canceled::NotCanceled before starting a new operation.

secret_key: u32

Pgwire specifies that every connection have a 32-bit secret associated with it, that is known to both the client and the server. Cancellation requests are required to authenticate with the secret of the connection that they are targeting.