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Class: Puma::Systemd

Relationships & Source Files
Inherits: Object
Defined in: lib/puma/systemd.rb

Class Method Summary

Instance Method Summary

Constructor Details

.new(events) ⇒ Systemd

[ GitHub ] 

  


# File 'lib/puma/systemd.rb', line 7



def initialize(events)
  @events = events
end


  







Instance Method Details



  

    #hook_events  
  

  [ GitHub ]


  

  


# File 'lib/puma/systemd.rb', line 11



def hook_events
  @events.on_booted { SdNotify.ready }
  @events.on_stopped { SdNotify.stopping }
  @events.on_restart { SdNotify.reloading }
end


  








  

    #log(str)   (private)
  

  [ GitHub ]


  

  


# File 'lib/puma/systemd.rb', line 42



def log(str)
  @events.log str
end


  








  

    #start_watchdog  
  

  [ GitHub ]


  

  


# File 'lib/puma/systemd.rb', line 17



def start_watchdog
  return unless SdNotify.watchdog?

  ping_f = watchdog_sleep_time

  log "Pinging systemd watchdog every #{ping_f.round(1)} sec"
  Thread.new do
    loop do
      sleep ping_f
      SdNotify.watchdog
    end
  end
end


  








  

    #watchdog_sleep_time   (private)
  

  [ GitHub ]


  

  


# File 'lib/puma/systemd.rb', line 33



def watchdog_sleep_time
  usec = Integer(ENV["WATCHDOG_USEC"])

  sec_f = usec / 1_000_000.0
  # "It is recommended that a daemon sends a keep-alive notification message
  # to the service manager every half of the time returned here."
  sec_f / 2
end