# File lib/daemons/pid.rb, line 62
62:     def Pid.dir(dir_mode, dir, script)
63:       # nil script parameter is allowed as long as dir_mode is not :script
64:       return nil if dir_mode == :script && script.nil?                         
65:       
66:       case dir_mode
67:         when :normal
68:           return File.expand_path(dir)
69:         when :script
70:           return File.expand_path(File.join(File.dirname(script),dir))
71:         when :system  
72:           return '/var/run'
73:         else
74:           raise Error.new("pid file mode '#{dir_mode}' not implemented")
75:       end
76:     end

    # File lib/daemons/pid.rb, line 79
79:     def initialize
80:     end

    # File lib/daemons/pid.rb, line 7
 7:     def Pid.running?(pid)
 8:       return false unless pid
 9:       
10:       # Check if process is in existence
11:       # The simplest way to do this is to send signal '0'
12:       # (which is a single system call) that doesn't actually
13:       # send a signal
14:       begin
15:         Process.kill(0, pid)
16:         return true
17:       rescue Errno::ESRCH
18:         return false
19:       rescue ::Exception   # for example on EPERM (process exists but does not belong to us)
20:         return true
21:       #rescue Errno::EPERM
22:       #  return false
23:       end
24:     end

    # File lib/daemons/pid.rb, line 97
97:     def cleanup
98:     end

     # File lib/daemons/pid.rb, line 101
101:     def exist?
102:       true
103:     end

    # File lib/daemons/pid.rb, line 84
84:     def pid
85:     end

    # File lib/daemons/pid.rb, line 88
88:     def pid=(p)
89:     end

    # File lib/daemons/pid.rb, line 92
92:     def running?
93:       return Pid.running?(pid())
94:     end