Enum TdsStream 

pub enum TdsStream {
    Plain(TcpStream),
    Tls(Box<TlsStream<TdsHandshakeStream>>),
    Closed,
}

A TDS connection, before or after encryption.

An enum rather than a boxed trait object for the same reason the HTTP client uses one: there are exactly two cases, they are known at compile time, and a virtual call per read on a database connection buys nothing.

Variants

Plain(TcpStream)

Tls(Box<TlsStream<TdsHandshakeStream>>)

Closed

No transport, only ever seen for the instant it takes to swap one kind for another mid-handshake. A real placeholder rather than a dummy socket so that a bug here reports itself instead of hanging on a dead file descriptor.

Implementations

impl TdsStream

pub async fn write_all(&mut self, bytes: &[u8]) -> Result<()>

pub async fn flush(&mut self) -> Result<()>

pub async fn read(&mut self, buffer: &mut [u8]) -> Result<usize>

pub async fn shutdown(&mut self) -> Result<()>

pub fn take(&mut self) -> TdsStream

Take the transport, leaving TdsStream::Closed behind.

pub fn into_plain(self) -> Result<TdsStream>

Tear the TLS session down and go back to the bare socket, which is what ENCRYPT_OFF asks for once the login packet has been sent.