Module: RocketAMF::Pure::WriteIOHelpers

Included in:
Envelope, Serializer
Defined in:
lib/rocketamf/pure/io_helpers.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#byte_order ⇒ Object 



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# File 'lib/rocketamf/pure/io_helpers.rb', line 81

def byte_order
  if [0x12345678].pack("L") == "\x12\x34\x56\x78"
    :BigEndian
  else
    :LittleEndian
  end
end

#byte_order_little? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rocketamf/pure/io_helpers.rb', line 89

def byte_order_little?
  (byte_order == :LittleEndian) ? true : false;
end

#pack_double(double) ⇒ Object 



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# File 'lib/rocketamf/pure/io_helpers.rb', line 63

def pack_double(double)
  [double].pack('G')
end

#pack_int16_network(val) ⇒ Object 



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# File 'lib/rocketamf/pure/io_helpers.rb', line 71

def pack_int16_network(val)
  [val].pack('n')
end

#pack_int8(val) ⇒ Object 



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# File 'lib/rocketamf/pure/io_helpers.rb', line 67

def pack_int8(val)
  [val].pack('c')
end

#pack_integer(integer) ⇒ Object 



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# File 'lib/rocketamf/pure/io_helpers.rb', line 44

def pack_integer(integer)
  integer = integer & 0x1fffffff
  if(integer < 0x80)
    [integer].pack('c')
  elsif(integer < 0x4000)
    [integer >> 7 & 0x7f | 0x80].pack('c')+
    [integer & 0x7f].pack('c')
  elsif(integer < 0x200000)
    [integer >> 14 & 0x7f | 0x80].pack('c') +
    [integer >> 7 & 0x7f | 0x80].pack('c') +
    [integer & 0x7f].pack('c')
  else
    [integer >> 22 & 0x7f | 0x80].pack('c')+
    [integer >> 15 & 0x7f | 0x80].pack('c')+
    [integer >> 8 & 0x7f | 0x80].pack('c')+
    [integer & 0xff].pack('c')
  end
end

#pack_word32_network(val) ⇒ Object 



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# File 'lib/rocketamf/pure/io_helpers.rb', line 75

def pack_word32_network(val)
  str = [val].pack('L')
  str.reverse! if byte_order_little? # swap bytes as native=little (and we want network)
  str
end