class IO::Endpoint::Wrapper
def connect(remote_address, local_address: nil, linger: nil, timeout: nil, buffered: false, **options)
@parameter linger [Boolean] Wait for data to be sent before closing the socket.
@parameter remote_address [Address] The remote address to connect to.
socket = Async::IO::Socket.connect(Async::IO::Address.tcp("8.8.8.8", 53))
@example
Establish a connection to a given `remote_address`.
def connect(remote_address, local_address: nil, linger: nil, timeout: nil, buffered: false, **options) socket = nil begin socket = ::Socket.new(remote_address.afamily, remote_address.socktype, remote_address.protocol) if linger socket.setsockopt(SOL_SOCKET, SO_LINGER, 1) end if buffered == false set_buffered(socket, buffered) end if timeout set_timeout(socket, timeout) end if local_address if defined?(IP_BIND_ADDRESS_NO_PORT) # Inform the kernel (Linux 4.2+) to not reserve an ephemeral port when using bind(2) with a port number of 0. The port will later be automatically chosen at connect(2) time, in a way that allows sharing a source port as long as the 4-tuple is unique. socket.setsockopt(SOL_IP, IP_BIND_ADDRESS_NO_PORT, 1) end socket.bind(local_address.to_sockaddr) end rescue socket&.close raise end begin socket.connect(remote_address.to_sockaddr) rescue Exception socket.close raise end return socket unless block_given? begin yield socket ensure socket.close end end