Sha256: dd5b00cda2e2d4197911340202b70091bc83906cbbe8d2e79b3ad902e3cab109

Contents?: true

Size: 746 Bytes

Versions: 7

Compression:

Stored size: 746 Bytes

Contents

class ZipTricks::FileReader::InflatingReader
  def initialize(from_io, compressed_data_size)
    @io = from_io
    @compressed_data_size = compressed_data_size
    @already_read = 0
    @zlib_inflater = ::Zlib::Inflate.new(-Zlib::MAX_WBITS)
  end

  def extract(n_bytes=nil)
    n_bytes ||= (@compressed_data_size - @already_read)

    return if eof?

    available = @compressed_data_size - @already_read

    return if available.zero?

    n_bytes = available if n_bytes > available

    return '' if n_bytes.zero?

    compressed_chunk = @io.read(n_bytes)

    return if compressed_chunk.nil?

    @already_read += compressed_chunk.bytesize
    @zlib_inflater.inflate(compressed_chunk)
  end

  def eof?
    @zlib_inflater.finished?
  end
end

Version data entries

7 entries across 7 versions & 1 rubygems

Version Path
zip_tricks-4.4.2 lib/zip_tricks/file_reader/inflating_reader.rb
zip_tricks-4.4.1 lib/zip_tricks/file_reader/inflating_reader.rb
zip_tricks-4.4.0 lib/zip_tricks/file_reader/inflating_reader.rb
zip_tricks-4.3.0 lib/zip_tricks/file_reader/inflating_reader.rb
zip_tricks-4.2.4 lib/zip_tricks/file_reader/inflating_reader.rb
zip_tricks-4.2.3 lib/zip_tricks/file_reader/inflating_reader.rb
zip_tricks-4.2.2 lib/zip_tricks/file_reader/inflating_reader.rb