/// <summary>
/// Read from the file, but do not update the positition (in the position file)
/// </summary>
/// <param name="buffers">Will be cleared and then filled with all available buffers</param>
/// <param name="maxNumberOfMessages">Number of wanted records (will return less if less are available)</param>
public void Peek(List <byte[]> buffers, int maxNumberOfMessages)
{
if (buffers == null)
{
throw new ArgumentNullException("buffers");
}
buffers.Clear();
_readFile.Peek(buffers, maxNumberOfMessages);
if (buffers.Any())
{
return;
}
if (!TryOpenNextReadFile())
{
return;
}
_readFile.Peek(buffers, maxNumberOfMessages);
}
/// <summary>
/// Read from the file, but do not update the positition (in the position file)
/// </summary>
/// <param name="buffers">The list will be appended with all available records (max <c>maxNumberOfMessages</c> records).</param>
/// <param name="maxNumberOfMessages">Number of wanted records (will return less if less are available)</param>
public void Peek(List <byte[]> buffers, int maxNumberOfMessages)
{
if (buffers == null)
{
throw new ArgumentNullException("buffers");
}
var initialSize = buffers.Count;
_readFile.Peek(buffers, maxNumberOfMessages);
if (buffers.Any())
{
return;
}
if (!TryOpenNextReadFile())
{
return;
}
var leftToEnqueue = maxNumberOfMessages - (buffers.Count - initialSize);
_readFile.Peek(buffers, leftToEnqueue);
}