Class: YouTubeIt::GreedyChainIO

Inherits:
ChainIO
  • Object
show all
Defined in:
lib/youtube_it/chain_io.rb

Overview

Net::HTTP only can send chunks of 1024 bytes. This is very inefficient, so we have a spare IO that will send more when asked for 1024. We use delegation because the read call is recursive.

Constant Summary

BIG_CHUNK =

500 kb

512 * 1024

Instance Attribute Summary

Attributes inherited from ChainIO

#autoclose

Instance Method Summary collapse

Methods inherited from ChainIO

#expected_length

Constructor Details

#initialize(*with_ios) ⇒ GreedyChainIO



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# File 'lib/youtube_it/chain_io.rb', line 62

def initialize(*with_ios)
  __setobj__(YouTubeIt::ChainIO.new(with_ios))
end

Instance Method Details

#lengthObject



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# File 'lib/youtube_it/chain_io.rb', line 73

def length()
  __getobj__.expected_length
end

#read(size = BIG_CHUNK, dst_buf = nil) ⇒ Object



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# File 'lib/youtube_it/chain_io.rb', line 66

def read(size = BIG_CHUNK, dst_buf = nil)
  src_buf = __getobj__.read(size)
  return nil unless src_buf
  copy_buf(src_buf, dst_buf) if dst_buf
  src_buf
end