Class: LZWS::Stream::Writer

Inherits:
Abstract show all
Includes:
WriterHelpers
Defined in:
lib/lzws/stream/writer.rb

Constant Summary

Constants included from Delegates

Delegates::DELEGATES

Instance Attribute Summary

Attributes inherited from Abstract

#external_encoding, #internal_encoding, #io, #pos, #stat, #transcode_options

Instance Method Summary collapse

Methods included from WriterHelpers

#<<, included, #print, #printf, #putc, #puts

Methods inherited from Abstract

#advise, #closed?, #set_encoding, #to_io

Methods included from Delegates

included

Constructor Details

#initialize(destination_io, options = {}, *args) ⇒ Writer 



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# File 'lib/lzws/stream/writer.rb', line 13

def initialize(destination_io, options = {}, *args)
  @options = options

  super destination_io, *args
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/lzws/stream/writer.rb', line 54

def close
  finish :close

  super
end

#close_nonblock(*options) ⇒ Object 



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# File 'lib/lzws/stream/writer.rb', line 111

def close_nonblock(*options)
  return false unless finish_nonblock :close, *options

  method(:close).super_method.call

  true
end

#flush ⇒ Object 



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# File 'lib/lzws/stream/writer.rb', line 40

def flush
  finish :flush

  @io.flush

  self
end

#flush_nonblock(*options) ⇒ Object 



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# File 'lib/lzws/stream/writer.rb', line 95

def flush_nonblock(*options)
  return false unless finish_nonblock :flush, *options

  @io.flush

  true
end

#rewind ⇒ Object 



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# File 'lib/lzws/stream/writer.rb', line 48

def rewind
  finish :close

  super
end

#rewind_nonblock(*options) ⇒ Object 



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# File 'lib/lzws/stream/writer.rb', line 103

def rewind_nonblock(*options)
  return false unless finish_nonblock :close, *options

  method(:rewind).super_method.call

  true
end

#write(*objects) ⇒ Object

– synchronous –



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# File 'lib/lzws/stream/writer.rb', line 25

def write(*objects)
  write_remaining_buffer

  bytes_written = 0

  objects.each do |object|
    source         = transcode object.to_s
    bytes_written += raw_wrapper :write, source
  end

  @pos += bytes_written

  bytes_written
end

#write_nonblock(object, *options) ⇒ Object

IO write nonblock can raise wait writable error. After resolving this error user may provide same content again. It is not possible to revert accepted content after error. So we have to accept content after processing IO write nonblock. It means that first write nonblock won’t call IO write nonblock.



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# File 'lib/lzws/stream/writer.rb', line 85

def write_nonblock(object, *options)
  return 0 unless write_remaining_buffer_nonblock(*options)

  source         = transcode object.to_s
  bytes_written  = raw_nonblock_wrapper :write, source
  @pos          += bytes_written

  bytes_written
end