Class: EnumeratorConcurrent::Queued

Inherits:
Array
  • Object
show all
Defined in:
lib/enumerator_concurrent/queued.rb

Overview

Enumerator with thread count speciyfied to handle loop

Instance Method Summary collapse

Methods inherited from Array

#concurrent

Constructor Details

#initialize(arr, thread_count) ⇒ Queued

Returns a new instance of Queued.

Parameters:

  • arr (Array)
  • thread_count (Int) —

    how many thread should be handle the Enumarator



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# File 'lib/enumerator_concurrent/queued.rb', line 7

def initialize(arr, thread_count)
  @thread_count = 0...thread_count
  @queue = Queue.new
  @arr = arr
  super(arr)
end

Instance Method Details

#each {|x| ... } ⇒ self

Yields:

  • (x) —

    element in array

Returns:

  • (self) 


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# File 'lib/enumerator_concurrent/queued.rb', line 16

def each
  @arr.each { |x| @queue.push x }
  init_workers do
    pop_queue do |x|
      yield(x)
    end
  end
  self
end

#map {|x| ... } ⇒ Array

Returns with modified values.

Yields:

  • (x) —

    element in self

Returns:

  • (Array) —

    with modified values



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# File 'lib/enumerator_concurrent/queued.rb', line 28

def map
  return_value = []
  @arr.map.with_index { |x, i| @queue.push(i => x) }
  init_workers do
    pop_queue do |x|
      key, value = x.first
      return_value[key] = yield(value)
    end
  end
  return_value
end