private void ReadInternal()
{
var sw = Stopwatch.StartNew();
// a partial read is required at the end of the file
long position = m_streamPosition;
if (position + m_buffer.Length > m_stream.Length)
{
m_streamEnd.Seek(position, SeekOrigin.Begin);
m_bufferValidSize = m_streamEnd.Read(m_buffer.Data, 0, (int)(m_streamEnd.Length - position));
}
else
{
m_stream.Read(m_buffer.Data, 0, m_buffer.Length);
m_streamPosition += m_buffer.Length;
m_bufferValidSize = m_buffer.Length;
}
// if the buffer was not valid, we just did a seek
// and need to maintain the buffer index
if (m_bufferIsValid)
{
m_bufferIndex = 0;
}
else
{
m_bufferIsValid = true;
}
sw.Stop();
PerformanceManager.UpdateReadBytes(m_bufferValidSize, sw);
}
private void FlushInternal()
{
if (m_bufferIndex > 0)
{
var sw = Stopwatch.StartNew();
// a partial flush is only allowed at the end of the file
if (m_bufferIndex != m_buffer.Length && m_stream.Position + m_bufferIndex != m_length)
{
// once this is done, no more writes can be accepted
m_actualLength = Position;
}
m_stream.Write(m_buffer.Data, 0, m_buffer.Length);
m_bufferIndex = 0;
sw.Stop();
PerformanceManager.UpdateWriteBytes(m_actualLength > 0 ? m_actualLength : m_buffer.Length, sw);
}
}
