Function cleanupConn

src/upstreamproxy/relay.ts:444–455

(st: ConnState | undefined)

}

function cleanupConn(st: ConnState | undefined): void {
  if (!st) return
  if (st.pinger) clearInterval(st.pinger)
  if (st.ws && st.ws.readyState <= WebSocket.OPEN) {
    try {
      st.ws.close()
    } catch {
      // already closing
    }
  }
  st.ws = undefined
}