LogHeader(CachedBinaryReader reader)
{
var id = reader.ReadInt32 ();
if (id != LogHeaderId)
throw new InvalidOperationException ("Id doesn't match.");
var versionMajor = reader.ReadByte ();
var versionMinor = reader.ReadByte ();
Version = new Version (versionMajor, versionMinor);
Format = reader.ReadByte ();
PtrSize = reader.ReadByte ();
StartupTime = reader.ReadInt64 ();
TimerOverhead = reader.ReadInt32 ();
Flags = reader.ReadInt32 ();
Pid = reader.ReadInt32 ();
Port = reader.ReadUInt16 ();
SysId = reader.ReadUInt16 ();
}