# File lib/daemons/daemonize.rb, line 92 def daemonize(logfile_name = nil, app_name = nil) # Fork and exit from the parent safefork && exit # Detach from the controlling terminal unless sess_id = Process.setsid fail Daemons.RuntimeException.new('cannot detach from controlling terminal') end # Prevent the possibility of acquiring a controlling terminal trap 'SIGHUP', 'IGNORE' exit if safefork $0 = app_name if app_name # Release old working directory Dir.chdir '/' close_io redirect_io(logfile_name) # Split rand streams between spawning and daemonized process srand sess_id end