Class: Uplink::Download

Inherits:
Object
  • Object
show all
Defined in:
lib/uplink/download.rb

Instance Method Summary collapse

Constructor Details

#initialize(download_result) ⇒ Download

Returns a new instance of Download.



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# File 'lib/uplink/download.rb', line 5

def initialize(download_result)
  @download = download_result[:download]
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/uplink/download.rb', line 35

def close
  error = UplinkLib.uplink_close_download(@download)
  ErrorUtil.handle_error(error)
ensure
  UplinkLib.uplink_free_error(error) if error
end

#info ⇒ Object 



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# File 'lib/uplink/download.rb', line 26

def info
  result = UplinkLib.uplink_download_info(@download)
  ErrorUtil.handle_result_error(result)

  Object.new(result)
ensure
  UplinkLib.uplink_free_object_result(result) if result
end

#read(bytes, length) ⇒ Object 



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# File 'lib/uplink/download.rb', line 9

def read(bytes, length)
  raise ArgumentError, 'bytes argument is nil' if bytes.nil?

  mem_bytes = FFI::MemoryPointer.new(:uint8, length)
  result = UplinkLib.uplink_download_read(@download, mem_bytes, length)

  error_code = ErrorUtil.handle_result_error(result)
  is_eof = (error_code == EOF)

  bytes_read = result[:bytes_read]
  bytes.concat(mem_bytes.read_array_of_uint8(bytes_read)) if bytes_read.positive?

  [bytes_read, is_eof]
ensure
  UplinkLib.uplink_free_read_result(result) if result
end