libtmux::Server::control

This is the streaming half of the transport: a control connection stays open, exposes guarded reply blocks in wire order, and delivers events outside those blocks. The synchronous surface above is unaffected — a caller who never opens one never pays for it. A guarded block is not a final result for commands whose work tmux completes asynchronously.

Fails with ProtocolError , not CommandFailure , because that is what the Connection it returns speaks: an error type here that the value's own surface does not use would make the doorway disagree with the room.