Method sockets

packages/socket.io-adapter/lib/in-memory-adapter.ts:263–271

* Gets a list of sockets by sid. * * @param {Set<Room>} rooms the explicit set of rooms to check.

(rooms: Set<Room>)

   * @param {Set<Room>} rooms   the explicit set of rooms to check.
   */
  public sockets(rooms: Set<Room>): Promise<Set<SocketId>> {
    const sids = new Set<SocketId>();

    this.apply({ rooms }, (socket) => {
      sids.add(socket.id);
    });

    return Promise.resolve(sids);
  }

  /**
   * Gets the list of rooms a given socket has joined.