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# TCPSocket represents a TCP/IP client socket.
#
# A simple client may look like:
#
# require 'socket'
#
# s = TCPSocket.new 'localhost', 2000
#
# while line = s.gets # Read lines from socket
# puts line # and print them
# end
#
# s.close # close socket when done
class TCPSocket < IPSocket
# Use Addrinfo.getaddrinfo instead. This method is deprecated for the following
# reasons:
#
# * The 3rd element of the result is the address family of the first address.
# The address families of the rest of the addresses are not returned.
# * gethostbyname() may take a long time and it may block other threads. (GVL
# cannot be released since gethostbyname() is not thread safe.)
# * This method uses gethostbyname() function already removed from POSIX.
#
#
# This method lookups host information by *hostname*.
#
# TCPSocket.gethostbyname("localhost")
# #=> ["localhost", ["hal"], 2, "127.0.0.1"]
#
def self.gethostbyname: (String host) -> [String, Array[String], Integer, String]
private
def initialize: (String remote_host, Integer remote_port, ?String local_host, ?Integer local_port) -> untyped
end
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