Class: FastCache::ModulusBucket

Inherits:
Object
  • Object
show all
Defined in:
lib/fastcache/bucket/modulus.rb

Instance Method Summary collapse

Constructor Details

#initialize(key, hash) ⇒ ModulusBucket

Returns a new instance of ModulusBucket.



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# File 'lib/fastcache/bucket/modulus.rb', line 3

def initialize(key, hash)
  @digest = hash.new(key).hexdigest.to_i(16)
  @key = key
end

Instance Method Details

#select(nodes) ⇒ Object 



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# File 'lib/fastcache/bucket/modulus.rb', line 8

def select(nodes)
  count = nodes.size
  # Note: An upper bound on tries ought to be given at some point
  count.times do |i|
    begin
      break yield(@key, nodes[(@digest + i) % count])
    rescue FastCache::Memcache::ProtocolError
      next
    end
    raise 'Unable to find suitable node to communicate with'
  end
end