public override void flatten(BinaryWriter writer)
{
// Format: 0. Protocol revision number
// (4 bytes, always set to CURRENT_PROTOCOL_VERSION)
// 1. 'what' code (4 bytes)
// 2. Number of entries (4 bytes)
// 3. Entry name length (4 bytes)
// 4. Entry name string (flattened String)
// 5. Entry type code (4 bytes)
// 6. Entry data length (4 bytes)
// 7. Entry data (n bytes)
// 8. loop to 3 as necessary
writer.Write((int)CURRENT_PROTOCOL_VERSION);
writer.Write((int)what);
writer.Write((int)countFields());
IEnumerator e = fieldNames();
while (e.MoveNext())
{
string name = (string)e.Current;
MessageField field = (MessageField)_fieldTable[name];
byte [] byteArray = Encoding.UTF8.GetBytes(name);
writer.Write((int)(byteArray.Length + 1));
writer.Write(byteArray);
writer.Write((byte)0); // terminating NUL byte
writer.Write(field.typeCode());
writer.Write(field.flattenedSize());
field.flatten(writer);
}
}
/// Returns The number of bytes it would take to flatten this
/// Message into a byte buffer.
public override int flattenedSize()
{
// 4 bytes for the protocol revision #, 4 bytes for the
// number-of-entries field, 4 bytes for what code
int sum = 4 + 4 + 4;
if (_fieldTable != null)
{
IEnumerator e = fieldNames();
while (e.MoveNext())
{
string fieldName = (string)e.Current;
MessageField field = (MessageField)_fieldTable[fieldName];
// 4 bytes for the name length, name data,
// 4 bytes for entry type code,
/// 4 bytes for entry data length, entry data
sum += 4 + (fieldName.Length + 1) + 4 + 4 + field.flattenedSize();
}
}
return(sum);
}