Class: PromisePool::Timer

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

Constant Summary collapse

Error = 
Class.new(RuntimeError)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(timeout, error = Error.new('execution expired')) ⇒ Timer

Returns a new instance of Timer.



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# File 'lib/promise_pool/timer.rb', line 36

def initialize timeout, error=Error.new('execution expired')
  self.timeout = timeout
  self.error   = error
end

Instance Attribute Details

#error ⇒ Object

Returns the value of attribute error.



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# File 'lib/promise_pool/timer.rb', line 35

def error
  @error
end

#timeout ⇒ Object

Returns the value of attribute timeout.



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# File 'lib/promise_pool/timer.rb', line 35

def timeout
  @timeout
end

#timer ⇒ Object

Returns the value of attribute timer.



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# File 'lib/promise_pool/timer.rb', line 35

def timer
  @timer
end

Instance Method Details

#cancel ⇒ Object

should never raise!



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# File 'lib/promise_pool/timer.rb', line 47

def cancel
  timer.cancel if timer
  self.block = nil
end

#on_timeout(&block) ⇒ Object 



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# File 'lib/promise_pool/timer.rb', line 41

def on_timeout &block
  self.block = block
  start
end

#start ⇒ Object 



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# File 'lib/promise_pool/timer.rb', line 52

def start
  return if timeout.nil? || timeout.zero?
  self.timer = self.class.group.after(timeout){ block.call if block }
end