Class: TinyDaemon::ProcessFile

Inherits:
Struct
  • Object
show all
Defined in:
lib/tiny_daemon/process_file.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#app_name ⇒ Object

Returns the value of attribute app_name

Returns:

  • (Object) —

    the current value of app_name



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# File 'lib/tiny_daemon/process_file.rb', line 2

def app_name
  @app_name
end

#pid_dir ⇒ Object

Returns the value of attribute pid_dir

Returns:

  • (Object) —

    the current value of pid_dir



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# File 'lib/tiny_daemon/process_file.rb', line 2

def pid_dir
  @pid_dir
end

Instance Method Details

#clean ⇒ Object 



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# File 'lib/tiny_daemon/process_file.rb', line 26

def clean
  FileUtils.rm(pid_file_path) if File.exists?(pid_file_path)
end

#get ⇒ Object 



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# File 'lib/tiny_daemon/process_file.rb', line 16

def get
  pid = if File.exists?(pid_file_path)
    IO.read(pid_file_path).strip.to_i
  else
    0
  end

  pid == 0 ? nil : pid
end

#pid_file_path ⇒ Object 



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# File 'lib/tiny_daemon/process_file.rb', line 3

def pid_file_path
  File.join(self.pid_dir, "#{self.app_name}.pid")
end

#store(pid) ⇒ Object 



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# File 'lib/tiny_daemon/process_file.rb', line 7

def store(pid)
  raise "#{pid_file_path} already exists. The process might already run. Remove it manually if it doesn't." if File.exists?(pid_file_path)

  FileUtils.mkdir_p(self.pid_dir)
  File.open(pid_file_path, 'w') do |f| 
    f.write("#{pid}")
  end
end