module Ohai::Mixin::HttpHelper
Public Instance Methods
can_socket_connect?(addr, port, timeout = 2)
click to toggle source
# File lib/ohai/mixin/http_helper.rb, line 23 def can_socket_connect?(addr, port, timeout = 2) t = Socket.new(Socket::Constants::AF_INET, Socket::Constants::SOCK_STREAM, 0) begin saddr = Socket.pack_sockaddr_in(port, addr) rescue SocketError => e # generally means dns resolution error Ohai::Log.debug("Mixin HttpHelper: can_socket_connect? failed setting up socket connection: #{e}") return false end connected = false begin t.connect_nonblock(saddr) rescue Errno::EINPROGRESS r, w, e = IO.select(nil, [t], nil, timeout) if !w.nil? connected = true else begin t.connect_nonblock(saddr) rescue Errno::EISCONN t.close connected = true rescue SystemCallError end end rescue SystemCallError end Ohai::Log.debug("Mixin HttpHelper: can_socket_connect? == #{connected}") connected end