private unsafe void FillCountOfResultsAndIndexEtag(QueryResultServerSide resultToFill, string collection)
{
var buffer = stackalloc long[3];
if (collection == Constants.Documents.Collections.AllDocumentsCollection)
{
var numberOfDocuments = _documents.GetNumberOfDocuments(_context);
buffer[0] = DocumentsStorage.ReadLastDocumentEtag(_context.Transaction.InnerTransaction);
buffer[1] = DocumentsStorage.ReadLastTombstoneEtag(_context.Transaction.InnerTransaction);
buffer[2] = numberOfDocuments;
resultToFill.TotalResults = (int)numberOfDocuments;
}
else
{
var collectionStats = _documents.GetCollection(collection, _context);
buffer[0] = _documents.GetLastDocumentEtag(_context, collection);
buffer[1] = _documents.GetLastTombstoneEtag(_context, collection);
buffer[2] = collectionStats.Count;
}
resultToFill.ResultEtag = (long)Hashing.XXHash64.Calculate((byte *)buffer, sizeof(long) * 3);
}