Sha256: 58364c4086f0bf726b32a87e0468d882fe4a704136c608d154833724cd74e3d6
Contents?: true
Size: 1.34 KB
Versions: 10
Compression:
Stored size: 1.34 KB
Contents
# frozen_string_literal: true
module DnsMock
class Server
CURRENT_HOST_NAME = 'localhost'
CURRENT_HOST_ADDRESS = '127.0.0.1'
class RandomAvailablePort
ATTEMPTS = 100
MIN_DYNAMIC_PORT_NUMBER = 49_152
MAX_DYNAMIC_PORT_NUMBER = 65_535
class << self
def call
DnsMock::Server::RandomAvailablePort::ATTEMPTS.times do
port = rand(
DnsMock::Server::RandomAvailablePort::MIN_DYNAMIC_PORT_NUMBER..DnsMock::Server::RandomAvailablePort::MAX_DYNAMIC_PORT_NUMBER
)
return port if port_free?(port)
end
raise DnsMock::Error::RandomFreePort, DnsMock::Server::RandomAvailablePort::ATTEMPTS
end
private
def udp_port_free?(port, socket = ::UDPSocket.new)
socket.bind(DnsMock::Server::CURRENT_HOST_NAME, port)
socket.close
true
rescue ::Errno::EADDRINUSE
false
end
def tcp_port_free?(port, socket = ::Socket.new(::Socket::AF_INET, ::Socket::SOCK_STREAM, 0))
socket.bind(::Socket.sockaddr_in(port, DnsMock::Server::CURRENT_HOST_ADDRESS))
socket.close
true
rescue ::Errno::EADDRINUSE
false
end
def port_free?(port)
udp_port_free?(port) && tcp_port_free?(port)
end
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems