Struct MediaServerHandle 

pub struct MediaServerHandle {
    pub port: u16,
    pub registry: TokenRegistryHandle,
    pub session_id: String,
    pub shutdown: Mutex<Option<Sender<()>>>,
}

Handle to the running loopback media server.

Tauri manages this as app state so commands can read port and access the registry to mint / revoke tokens.

The shutdown sender is wrapped in a Mutex<Option<_>> so that:

1. MediaServerHandle is Sync (required by Tauri managed state).
2. Shutdown can be triggered exactly once by taking the sender.

Fields

port: u16

The OS-assigned port the server is bound to.

registry: TokenRegistryHandle

Shared token registry — commands mint and revoke tokens here.

session_id: String

Session identifier minted at app start; all tokens are tagged with this. revoke_session is called with this on app exit.

shutdown: Mutex<Option<Sender<()>>>

Send () to trigger graceful shutdown (consume with .lock().take()).