Class: Asmodai::Daemon

Inherits:
Object
  • Object
show all
Extended by:
ProcessManagement, RakeTask, Logging
Includes:
Logging
Defined in:
lib/asmodai/daemon.rb

Defined Under Namespace

Modules: ProcessManagement, RakeTask

Class Method Summary collapse

Instance Method Summary collapse

Methods included from ProcessManagement

is_running?, pid, pid_file_path, terminate

Methods included from RakeTask

install_rake_task

Constructor Details

#initialize ⇒ Daemon

Returns a new instance of Daemon.



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# File 'lib/asmodai/daemon.rb', line 24

def initialize
end

Class Method Details

.autoload_paths ⇒ Object 



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# File 'lib/asmodai/daemon.rb', line 11

def autoload_paths
  @autoload_paths ||= []
end

.daemon_name ⇒ Object 



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# File 'lib/asmodai/daemon.rb', line 19

def daemon_name
  @daemon_name || name.split("::").last.to_s.underscore
end

.set_daemon_name(name) ⇒ Object 



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# File 'lib/asmodai/daemon.rb', line 15

def set_daemon_name(name)
  @daemon_name=name.to_s.underscore
end

Instance Method Details

#daemon_name ⇒ Object 



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# File 'lib/asmodai/daemon.rb', line 27

def daemon_name
  self.class.daemon_name
end

#foreground ⇒ Object 



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# File 'lib/asmodai/daemon.rb', line 36

def foreground
  prepare_run
  perform_run
end

#on_signal(sig) ⇒ Object 



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# File 'lib/asmodai/daemon.rb', line 31

def on_signal(sig)
  # dummy implementation
end

#start ⇒ Object 



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# File 'lib/asmodai/daemon.rb', line 41

def start 
  prepare_run

  raise 'Fork failed' if (pid=fork) == -1
  
  if !pid
    Process.setsid
    raise 'Fork failed' if (pid=fork) == -1
    if !pid
      pid = Process.pid

      self.class.pid_file_path.open("w") do |f|
        f.puts pid
      end

      $stdin.reopen('/dev/null')
      $stdout.reopen(log_file)
      $stderr.reopen(log_file)
      logger.info "Starting up #{daemon_name} at #{Time.now}, pid: #{Process.pid}"

      perform_run
    end
  end
end