Method clearTransport

packages/engine.io/lib/socket.ts:387–406

* Clears listeners and timers associated with current transport. * * @private

()

   * @private
   */
  private clearTransport() {
    let cleanup;

    const toCleanUp = this.cleanupFn.length;

    for (let i = 0; i < toCleanUp; i++) {
      cleanup = this.cleanupFn.shift();
      cleanup();
    }

    // silence further transport errors and prevent uncaught exceptions
    this.transport.on("error", function () {
      debug("error triggered by discarded transport");
    });

    // ensure transport won't stay open
    this.transport.close();

    clearTimeout(this.pingTimeoutTimer);
  }

  /**
   * Called upon transport considered closed.