Class: Steam::ByteReader

Inherits:

Object

• Object
• Steam::ByteReader

Extended by:

Forwardable

Defined in:

lib/steam/byte_reader.rb

Overview

Reads bytes from a given IO object.

Instance Method Summary

• #initialize(io) ⇒ ByteReader constructor

  Create a ByteReader object.

• #signed_int32 ⇒ Integer

  Reads an signed 32 bit integer from the stream.

• #string(len) ⇒ String

  Reads a string of a given length from the stream.

• #unsigned_int32 ⇒ Integer

  Reads an unsigned 32 bit integer from the stream.

Constructor Details

#initialize(io) ⇒ ByteReader

Create a ByteReader object

Parameters:

• io (:read) —

  an io object

# File 'lib/steam/byte_reader.rb', line 12

def initialize(io)
  @io = io
end

Instance Method Details

#signed_int32 ⇒ Integer

Reads an signed 32 bit integer from the stream

Returns:

• (Integer) —

  The 32 bit integer

# File 'lib/steam/byte_reader.rb', line 34

def signed_int32
  @io.read(4).unpack('<i*').first
end

#string(len) ⇒ String

Reads a string of a given length from the stream

Parameters:

• len (Integer) —

  the number of bytes to read

Returns:

• (String) —

  The read string

# File 'lib/steam/byte_reader.rb', line 20

def string(len)
  read(len)
end

#unsigned_int32 ⇒ Integer

Reads an unsigned 32 bit integer from the stream

Returns:

• (Integer) —

  The 32 bit integer

# File 'lib/steam/byte_reader.rb', line 27

def unsigned_int32
  @io.read(4).unpack('<I*').first
end