Core session management infrastructure for Phase 3:
- Session module: SessionId, SessionToken, SessionState enum with
validated transitions (Creating→Active⇄Suspended→Destroyed),
Session struct with timeout tracking, SessionRegistry with O(1)
lookup by ID and token (10 unit tests)
- Protocol: ClientHello gains optional token field, ServerHello gains
resumed flag and token echo, SessionStatus/SessionEvent enums added
to ControlMessage for session state notifications
- Server: SessionRegistry in headless CalloopData, sessions created on
client connect (with token lookup for resumption), suspended on
disconnect (not destroyed), periodic cleanup of expired sessions
- Client: --token CLI flag, persistent token at ~/.config/wayray/token
with auto-generation (random 16-byte hex), token sent in ClientHello,
resumed state logged from ServerHello
Implement QUIC networking for wrsrvd (server) and wrclient (client) using
quinn over rustls with self-signed certificates. Three logical channels:
control (bidirectional), display (server->client unidirectional), and
input (client->server unidirectional).
Server runs tokio in a background thread, communicating with the compositor
via std::sync::mpsc channels. Client exposes an async connect() API that
returns a ServerConnection with methods for sending input and receiving
frames.
Key design note: quinn streams are lazily materialized -- accept_bi/
accept_uni on the peer won't resolve until data is written. The handshake
protocol accounts for this by having each side write immediately after
opening streams.
