public Message ReadMessage()
{
while (_stream.Position != _stream.Length)
{
BlockType blockType;
byte[] data;
BlockHelper.ReadBlock(_stream, out blockType, out data);
MessageDirection direction;
switch (blockType)
{
case BlockType.Timestamp:
_time = LogHelper.BytesToTimeSpan(data);
break;
case BlockType.Client:
direction = MessageDirection.ClientToServer;
return(new Message(_time, direction, new ArraySegment <byte>(data)));
case BlockType.Server:
direction = MessageDirection.ServerToClient;
return(new Message(_time, direction, new ArraySegment <byte>(data)));
default:
throw new FormatException($"Unexpected blocktype {blockType}");
}
}
return(null);
}
private void ReadHeader()
{
BlockType blockType;
do
{
byte[] data;
BlockHelper.ReadBlock(_stream, out blockType, out data);
} while (blockType != BlockType.Start);
}
private void ReadHeader()
{
BlockType blockType;
byte[] data;
{
// magic bytes
BlockHelper.ReadBlock(_stream, out blockType, out data);
if (blockType != BlockType.MagicBytes)
{
throw new FormatException("First block must be a MagicBytes block");
}
if (!data.SequenceEqual(LogHelper.Encoding.GetBytes(LogHelper.MagicBytes)))
{
throw new FormatException("Incorrect magic bytes");
}
}
do
{
BlockHelper.ReadBlock(_stream, out blockType, out data);
switch (blockType)
{
case BlockType.Start:
break;
case BlockType.Region:
Header.Region = LogHelper.Encoding.GetString(data);
break;
case BlockType.MagicBytes:
case BlockType.Timestamp:
case BlockType.Server:
case BlockType.Client:
throw new FormatException($"Unexpected block type in header '{blockType}'");
}
} while (blockType != BlockType.Start);
}
