Daemons::Pid

    # File lib/daemons/pid.rb, line 63
63:     def Pid.dir(dir_mode, dir, script)
64:       # nil script parameter is allowed as long as dir_mode is not :script
65:       return nil if dir_mode == :script && script.nil?                         
66:       
67:       case dir_mode
68:         when :normal
69:           return File.expand_path(dir)
70:         when :script
71:           return File.expand_path(File.join(File.dirname(script),dir))
72:         when :system  
73:           return '/var/run'
74:         else
75:           raise Error.new("pid file mode '#{dir_mode}' not implemented")
76:       end
77:     end

    # File lib/daemons/pid.rb, line 80
80:     def initialize
81:     end

    # File lib/daemons/pid.rb, line 8
 8:     def Pid.running?(pid)
 9:       return false unless pid
10:       
11:       # Check if process is in existence
12:       # The simplest way to do this is to send signal '0'
13:       # (which is a single system call) that doesn't actually
14:       # send a signal
15:       begin
16:         Process.kill(0, pid)
17:         return true
18:       rescue Errno::ESRCH
19:         return false
20:       rescue ::Exception   # for example on EPERM (process exists but does not belong to us)
21:         return true
22:       #rescue Errno::EPERM
23:       #  return false
24:       end
25:     end

    # File lib/daemons/pid.rb, line 98
98:     def cleanup
99:     end

     # File lib/daemons/pid.rb, line 102
102:     def exist?
103:       true
104:     end

    # File lib/daemons/pid.rb, line 85
85:     def pid
86:     end

    # File lib/daemons/pid.rb, line 89
89:     def pid=(p)
90:     end

    # File lib/daemons/pid.rb, line 93
93:     def running?
94:       return Pid.running?(pid())
95:     end