private List <IBlock> FindBlocks(uint recordId)
{
var blocks = new List <IBlock>();
var success = false;
try
{
var currentBlockId = recordId;
do
{
// Grab next block
var block = _storage.Find(currentBlockId);
if (null == block)
{
// Special case: if block #0 never created, then attempt to create it
if (currentBlockId == 0)
{
block = _storage.CreateNew();
}
else
{
throw new Exception("Block not found by id: " + currentBlockId);
}
}
blocks.Add(block);
// If this is a deleted block then ignore the f**k out of it
if (1L == block.GetHeader(KIsDeleted))
{
throw new InvalidDataException("Block not found: " + currentBlockId);
}
// Move next
currentBlockId = (uint)block.GetHeader(KNextBlockId);
} while (currentBlockId != 0);
success = true;
return(blocks);
}
finally
{
// Incase shit happens, dispose all fetched blocks
if (false == success)
{
foreach (var block in blocks)
{
block.Dispose();
}
}
}
}
/// <summary>
/// Creates a new record with empty data.
/// </summary>
public uint Create()
{
using (IBlock firstBlock = blockStorage.CreateNew()) {
return(firstBlock.Id);
}
}