private static PersistentIndex CreateFromBytes(IBlobManager blobManager, ReadOnlyMemory <byte> bytes)
{
var index = new PersistentIndex(new LazinatorMemory(bytes));
index.BlobManager = blobManager;
return(index);
}
/// <summary>
/// Prepares for new version of index file to be created, based on previous version of the index
/// </summary>
/// <param name="previousPersistentIndex"></param>
public PersistentIndex(PersistentIndex previousPersistentIndex, int?additionalFork = null)
{
PreviousPersistentIndex = previousPersistentIndex;
BaseBlobPath = previousPersistentIndex.BaseBlobPath;
BlobManager = previousPersistentIndex.BlobManager;
ContainedInSingleBlob = previousPersistentIndex.ContainedInSingleBlob;
IsPersisted = false;
IndexVersion = previousPersistentIndex.IndexVersion + 1;
InitializeMemoryChunkStatusFromPrevious();
if (additionalFork is int forkToAdd)
{
ForkInformation = previousPersistentIndex.ForkInformation?.ToList() ?? new List <(int lastMemoryChunkBeforeFork, int forkNumber)>();
ForkInformation.Add((PreviousPersistentIndex.GetLastMemoryBlockID(), forkToAdd));
}
}