private void LoadStreamTable()
{
StorageStreamMetadata streamMetadata;
stream.Position = 0;
int index = 0;
map.Clear();
items.Clear();
int cnt = (int)stream.Length / StorageStreamMetadata.StructureSize;
for (int i = 0; i < cnt; i++)
{
streamMetadata = StorageStreamMetadata.Load(stream, i);
if (streamMetadata.StreamId != Guid.Empty)
{
map.Set(index, true);
items.Add(streamMetadata.StreamId, index);
}
index++;
}
}
/// <summary>
/// Returns table entries
/// </summary>
public IEnumerable <StorageStreamMetadata> Get()
{
StorageStreamMetadata streamMetadata;
foreach (StorageStreamMetadata entry in entriesAddedInTransaction.Values)
{
yield return(entry);
}
for (int i = 0; i < stream.Length / StorageStreamMetadata.StructureSize; i++)
{
streamMetadata = StorageStreamMetadata.Load(stream, i);
if (streamMetadata.StreamId != Guid.Empty)
{
yield return(streamMetadata);
}
}
}
/// <summary>
/// Gets first segment location for specified streamId or nulll if not found.
/// </summary>
public StorageStreamMetadata Get(Guid streamId)
{
StorageStreamMetadata result = null;
int index;
// Search through entries in memory
if (!entriesAddedInTransaction.TryGetValue(streamId, out result))
{
// Load it from stream table stream
if (items.TryGetValue(streamId, out index))
{
result = StorageStreamMetadata.Load(stream, index);
}
}
return(result);
}