Struct McpState 

pub struct McpState {
    pub subscribed: Arc<Mutex<HashSet<String>>>,
    pub notif_tx: Arc<Mutex<Option<Sender<String>>>>,
}

Shared MCP-session state. Today: subscribed resource URIs + a writer channel for unsolicited notifications (push). Future per-session cursors, etc. go here.

Fields

subscribed: Arc<Mutex<HashSet<String>>>

Resource URIs the client has subscribed to. Wildcard support is intentionally NOT done — clients subscribe to specific URIs and receive notifications/resources/updated only for those URIs.

notif_tx: Arc<Mutex<Option<Sender<String>>>>

Writer-channel sender for emitting unsolicited notifications (notifications/resources/list_changed, etc.). Populated by run() before tools are dispatched; None in unit tests.

Trait Implementations

impl Clone for McpState

fn clone(&self) -> McpState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for McpState

fn default() -> McpState

Returns the “default value” for a type.