TaskJuggler::Daemon

    # File lib/daemon/Daemon.rb, line 21
21:     def initialize
22:       @daemonize = true
23:       @log = LogFile.instance
24:     end

    # File lib/daemon/Daemon.rb, line 26
26:     def start
27:       return unless @daemonize
28: 
29:       # Fork and have the parent exit
30:       if (pid = fork) == 1
31:         @log.fatal('First fork failed')
32:       elsif !pid.nil?
33:         # This is the parent. We can exit now.
34:         @log.debug("Forked a child process with PID #{pid}")
35:         exit 0
36:       end
37: 
38:       # Create a new session
39:       Process.setsid
40:       # Fork again to make sure we lose the controlling terminal
41:       if (pid = fork) == 1
42:         @log.fatal('Second fork failed')
43:       elsif !pid.nil?
44:         # This is the parent. We can exit now.
45:         @log.debug("Forked a child process with PID #{pid}")
46:         exit 0
47:       end
48: 
49:       @pid = Process.pid
50: 
51:       # Change current working directory to the file system root
52:       Dir.chdir '/'
53:       # Make sure we can create files with any permission
54:       File.umask 0
55: 
56:       # We no longer have a controlling terminal, so these are useless.
57:       $stdin.reopen('/dev/null')
58:       $stdout.reopen('/dev/null', 'a')
59:       $stderr.reopen($stdout)
60: 
61:       @log.info("The process is running as daemon now with PID #{@pid}")
62:     end

    # File lib/daemon/Daemon.rb, line 64
64:     def stop
65:     end