- Addrinfo.tcp("0.0.0.0", 0).listen do |srv|
- port = srv.connect_address.ip_port
- STDERR.puts "Using port #{port} for #{for_what}"
- return port
+ begin
+ Addrinfo.tcp("0.0.0.0", 0).listen do |srv|
+ port = srv.connect_address.ip_port
+ # Selenium needs an additional locking port, check if it's available
+ # and retry if necessary.
+ if for_what == 'selenium'
+ locking_port = port - 1
+ Addrinfo.tcp("0.0.0.0", locking_port).listen.close
+ end
+ STDERR.puts "Using port #{port} for #{for_what}"
+ return port
+ end
+ rescue Errno::EADDRINUSE, Errno::EACCES
+ retry