Class: FPM::Fry::BlockEnumerator

Inherits:
Struct
  • Object
show all
Includes:
Enumerable
Defined in:
lib/fpm/fry/block_enumerator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(_, blocksize = 128) ⇒ BlockEnumerator

Returns a new instance of BlockEnumerator.

Parameters:

  • io (IO)
  • blocksize (Numeric) (defaults to: 128) 


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# File 'lib/fpm/fry/block_enumerator.rb', line 7

def initialize(_, blocksize = 128)
  super
end

Instance Attribute Details

#blocksize ⇒ Object

Returns the value of attribute blocksize

Returns:

  • (Object) —

    the current value of blocksize



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# File 'lib/fpm/fry/block_enumerator.rb', line 2

def blocksize
  @blocksize
end

#io ⇒ Object

Returns the value of attribute io

Returns:

  • (Object) —

    the current value of io



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# File 'lib/fpm/fry/block_enumerator.rb', line 2

def io
  @io
end

Instance Method Details

#call ⇒ String

Returns chunk or empty string at EOF.

Returns:

  • (String) —

    chunk or empty string at EOF



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# File 'lib/fpm/fry/block_enumerator.rb', line 24

def call
   while x = io.read(blocksize)
     next if x == ""
     return x
   end
   return ""
end

#each {|chunk| ... } ⇒ Enumerator

Returns unless called with a block.

Yields:

  • (chunk) —

    One chunk from the io

Yield Parameters:

  • chunk (String)

Returns:

  • (Enumerator) —

    unless called with a block



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# File 'lib/fpm/fry/block_enumerator.rb', line 14

def each
  return to_enum unless block_given?
  # Reading bigger chunks is far more efficient than invoking #each on an IO.
  while chunk = io.read(blocksize)
    yield chunk
  end
  return nil
end