Class: Turbine::Timer

Inherits:
Object
  • Object
show all
Defined in:
lib/turbine/timer.rb

Constant Summary collapse

MissingTimestampError = 
Class.new(StandardError)

Instance Method Summary collapse

Constructor Details

#initialize(dir = Turbine::Application.config_dir) ⇒ Timer

Returns a new instance of Timer.



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# File 'lib/turbine/timer.rb', line 9

def initialize(dir=Turbine::Application.config_dir)
  @file = "#{dir}/timestamp"
end

Instance Method Details

#clear_timestamp ⇒ Object 



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# File 'lib/turbine/timer.rb', line 26

def clear_timestamp
  FileUtils.rm_f(@file)
end

#elapsed_time ⇒ Object 



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# File 'lib/turbine/timer.rb', line 22

def elapsed_time
  ((Time.now.utc - timestamp.utc) / 60.0 / 60.0).round(Turbine::PRECISION)
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/turbine/timer.rb', line 30

def running?
  File.exist?(@file)
end

#timestamp ⇒ Object

Raises:



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# File 'lib/turbine/timer.rb', line 17

def timestamp
  raise MissingTimestampError unless running?
  Time.parse(File.read(@file)).localtime
end

#write_timestamp ⇒ Object 



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# File 'lib/turbine/timer.rb', line 13

def write_timestamp
  File.open(@file, "w") { |f| f << Time.now.utc.to_s }
end