private async Task <string> GetRootHashAsyncUnderLock()
{
var tryReadResult = await objectStore.TryReadAsync(TreeNamespace, "root").ConfigureAwait(false);
var rootExists = tryReadResult.Item1;
return(rootExists
? CampfireNetHash.ConvertBase64BufferToSha256Base64String(tryReadResult.Item2)
: null);
}
public static async Task <Tuple <bool, string> > TryWriteMerkleNodeAsync(this ICampfireNetObjectStore store, string ns, MerkleNode node)
{
using (var ms = new MemoryStream()) {
using (var writer = new BinaryWriter(ms, Encoding.UTF8, true)) {
writer.WriteMerkleNode(node);
}
var objectData = ms.GetBuffer();
var length = (int)ms.Position;
var hash = CampfireNetHash.ComputeSha256Base64(objectData, 0, length);
var isNewlyWritten = await store.TryWriteUniqueAsync(ns, hash, objectData).ConfigureAwait(false);
// var copy = await ReadMerkleNodeAsync(store, ns, hash).ConfigureAwait(false);
// if (copy.TypeTag != node.TypeTag || copy.LeftHash != node.LeftHash || copy.RightHash != node.RightHash || copy.Descendents != node.Descendents) {
// throw new InvalidStateException();
// }
return(Tuple.Create(isNewlyWritten, hash));
}
}