Class: IOPromise::Dalli::DalliPromise

Inherits:
Base
  • Object
show all
Defined in:
lib/iopromise/dalli/promise.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(server = nil, key = nil) ⇒ DalliPromise

Returns a new instance of DalliPromise.



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# File 'lib/iopromise/dalli/promise.rb', line 10

def initialize(server = nil, key = nil)
  super()

  # when created from a 'then' call, initialize nothing
  return if server.nil? || key.nil?

  @server = server
  @key = key
  @start_time = nil
  
  ::IOPromise::ExecutorContext.current.register(self)
end

Instance Attribute Details

#key ⇒ Object (readonly)

Returns the value of attribute key.



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# File 'lib/iopromise/dalli/promise.rb', line 8

def key
  @key
end

Instance Method Details

#execute_pool ⇒ Object 



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# File 'lib/iopromise/dalli/promise.rb', line 31

def execute_pool
  return @pool if defined?(@pool)
  if defined?(@server)
    @pool = DalliExecutorPool.for(@server)
  else
    @pool = nil
  end
end

#in_select_loop ⇒ Object 



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# File 'lib/iopromise/dalli/promise.rb', line 40

def in_select_loop
  if @start_time.nil?
    @start_time = Process.clock_gettime(Process::CLOCK_MONOTONIC)
  end
end

#timeout? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iopromise/dalli/promise.rb', line 54

def timeout?
  return false if @start_time.nil?
  timeout_remaining <= 0
end

#timeout_remaining ⇒ Object 



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# File 'lib/iopromise/dalli/promise.rb', line 46

def timeout_remaining
  now = Process.clock_gettime(Process::CLOCK_MONOTONIC)
  elapsed = now - @start_time
  remaining = @server.options[:socket_timeout] - elapsed
  return 0 if remaining < 0
  remaining
end

#wait ⇒ Object 



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# File 'lib/iopromise/dalli/promise.rb', line 23

def wait
  unless defined?(@server)
    super
  else
    ::IOPromise::ExecutorContext.current.wait_for_all_data(end_when_complete: self)
  end
end