public void Add(int sourceIndex, int count, IReadOnlyLogBuffer source, LogLineIndex destinationIndex)
{
// Let us see where that data lies in this page..
var pageDestinationIndex = destinationIndex - _section.Index;
foreach (var column in _copiedColumns)
{
_buffer.CopyFrom(column, pageDestinationIndex, source, new Int32Range(sourceIndex, count));
}
// We neither need, nor want the source buffer to have to supply the indices - we know them ourselves
_buffer.CopyFrom(Columns.Index, pageDestinationIndex, new LogSourceSection(_section.Index + pageDestinationIndex, count), 0, count);
_buffer.Fill(PageBufferedLogSource.RetrievalState, RetrievalState.Retrieved, pageDestinationIndex, count);
}
public Page(int index, int pageSize, IReadOnlyList <IColumnDescriptor> columns, IReadOnlyList <IColumnDescriptor> copiedColumns)
{
_index = index;
_pageSize = pageSize;
_copiedColumns = copiedColumns;
_section = new LogSourceSection(index * pageSize, pageSize);
_buffer = new LogBufferArray(pageSize, columns);
_lastAccessTime = DateTime.MinValue;
_numReads = 0;
_buffer.Fill(PageBufferedLogSource.RetrievalState, RetrievalState.NotInSource, 0, _pageSize);
}