from .host_interface import IHost # Upon host creation, host takes in options, # including the list of addresses on which to listen. # Host then parses these options and delegates to its Network instance, # telling it to listen on the given listen addresses. class BasicHost(IHost): # default options constructor def __init__(self, _network): self.network = _network self.peerstore = self.network.peerstore # self.stream_handlers = {} def get_id(self): """ :return: peer_id of host """ return self.network.get_peer_id() def get_network(self): """ :return: network instance of host """ return self.network def get_peerstore(self): """ :return: peerstore of the host (same one as in its network instance) """ return self.peerstore def get_mux(self): """ :return: mux instance of host """ pass def set_stream_handler(self, protocol_id, stream_handler): """ set stream handler for host :param protocol_id: protocol id used on stream :param stream_handler: a stream handler function :return: true if successful """ return self.network.set_stream_handler(protocol_id, stream_handler) # protocol_id can be a list of protocol_ids # stream will decide which protocol_id to run on def new_stream(self, peer_id, protocol_id): """ :param peer_id: peer_id that host is connecting :param proto_id: protocol id that stream runs on :return: true if successful """ stream = self.network.new_stream(peer_id) stream.set_protocol(protocol_id) return stream