int IPositionedMessagesReader.GetContentsEtag()
{
VolatileStream.Position = 0;
byte[] buf = new byte[1024];
int read = VolatileStream.Read(buf, 0, buf.Length);
return(Hashing.GetStableHashCode(buf, 0, read));
}
async ValueTask <int> IPositionedMessagesReader.GetContentsEtag()
{
VolatileStream.Position = 0;
byte[] buf = new byte[1024];
int read = await VolatileStream.ReadAsync(buf, 0, buf.Length);
return(Hashing.GetStableHashCode(buf, 0, read));
}