public static IBinaryLog CreateFile(string filename, long headerSize)
{
if (headerSize % 16 != 0)
{
throw new ArgumentException();
}
using (var stream = new FileStream(filename, FileMode.CreateNew))
using (var writer = new StreamBinaryWriter(stream))
{
writer.WriteInt64(DateTime.UtcNow.Ticks);
writer.WriteInt64(headerSize);
stream.SetLength(headerSize);
}
return(OpenFile(filename));
}
public BinaryLogRecord Add(byte[] record)
{
var hpos = _recCount * BinaryLogRecord.StampSize;
if (hpos >= _contentPosition)
{
throw new LogFileOverflowException(_filename);
}
var rec = new BinaryLogRecord(DateTime.UtcNow, record);
_headerWriter.Position = hpos;
_headerWriter.WriteInt64(rec.timestamp.Ticks);
_headerWriter.WriteInt64(_contentStream.Length);
_contentWriter.Position = _contentStream.Length;
_contentWriter.WriteByteArray(rec.content);
_recCount++;
return(rec);
}