control.ControlMode.attach_with_limits

Control mode reads from a process that keeps running, so the framing is the only thing bounding memory: a line that never ends, or a block whose %end never arrives, otherwise grows until the machine notices.

Errors

Returns an error when the connection cannot be opened, as Self::attach does. Server::shutdown cancels an attach in progress and refuses later attempts.

Cancel safety

Nothing is left held, as for Self::attach .