Class: Heroic::LRUCache::Node

Inherits:
Object
  • Object
show all
Defined in:
lib/heroic/lru_cache.rb

Overview

:nodoc:

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(key) ⇒ Node

Returns a new instance of Node.



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# File 'lib/heroic/lru_cache.rb', line 108

def initialize(key)
  @key = key
  @lock = Mutex.new
end

Instance Attribute Details

#key ⇒ Object (readonly)

Returns the value of attribute key.



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# File 'lib/heroic/lru_cache.rb', line 106

def key
  @key
end

#left ⇒ Object

Returns the value of attribute left.



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# File 'lib/heroic/lru_cache.rb', line 107

def left
  @left
end

#right ⇒ Object

Returns the value of attribute right.



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# File 'lib/heroic/lru_cache.rb', line 107

def right
  @right
end

Instance Method Details

#read ⇒ Object 



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# File 'lib/heroic/lru_cache.rb', line 112

def read
  @lock.synchronize { @value ||= yield(@key) }
end

#to_s ⇒ Object 



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# File 'lib/heroic/lru_cache.rb', line 118

def to_s
  sprintf '<Node:%x(%s)>', self.object_id, @key.inspect
end

#write(value) ⇒ Object 



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# File 'lib/heroic/lru_cache.rb', line 115

def write(value)
  @lock.synchronize { @value = value }
end