private static OmniHash CreateOmniHash(string name, ReadOnlySpan <byte> publicKey, OmniHashAlgorithmType hashAlgorithmType)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
using (var hub = new Hub())
{
{
var writer = new RocketPackWriter(hub.Writer, BufferPool.Shared);
writer.Write(name);
writer.Write(publicKey);
hub.Writer.Complete();
}
if (hashAlgorithmType == OmniHashAlgorithmType.Sha2_256)
{
var result = new OmniHash(hashAlgorithmType, Sha2_256.ComputeHash(hub.Reader.GetSequence()));
hub.Reader.Complete();
return(result);
}
else
{
throw new NotSupportedException();
}
}
}
public void Serialize(RocketPackWriter w, DownloadItemInfo value, int rank)
{
if (rank > 256)
{
throw new FormatException();
}
// Write property count
{
int propertyCount = 0;
if (value.Clue != default)
{
propertyCount++;
}
if (value.Path != default)
{
propertyCount++;
}
if (value.MaxLength != default)
{
propertyCount++;
}
if (value.DownloadingDepth != default)
{
propertyCount++;
}
if (value.DownloadingMerkleTreeNode != default)
{
propertyCount++;
}
if (value.StateType != default)
{
propertyCount++;
}
w.Write((ulong)propertyCount);
}
// Clue
if (value.Clue != default)
{
w.Write((ulong)0);
Clue.Formatter.Serialize(w, value.Clue, rank + 1);
}
// Path
if (value.Path != default)
{
w.Write((ulong)1);
w.Write(value.Path);
}
// MaxLength
if (value.MaxLength != default)
{
w.Write((ulong)2);
w.Write((ulong)value.MaxLength);
}
// DownloadingDepth
if (value.DownloadingDepth != default)
{
w.Write((ulong)3);
w.Write((ulong)value.DownloadingDepth);
}
// DownloadingMerkleTreeNode
if (value.DownloadingMerkleTreeNode != default)
{
w.Write((ulong)4);
MerkleTreeNode.Formatter.Serialize(w, value.DownloadingMerkleTreeNode, rank + 1);
}
// StateType
if (value.StateType != default)
{
w.Write((ulong)5);
w.Write((ulong)value.StateType);
}
}