private void InsertKeyInformation(DBreeze.Transactions.Transaction tx, Script scriptPubKey, KeyInformation info)
{
if (Caching)
{
_Cache.TryAdd(scriptPubKey.Hash, info);
}
tx.Insert("KeysByScript", scriptPubKey.Hash.ToString(), Zip(Serializer.ToString(info)));
}
public void MarkAsUsed(KeyInformation info)
{
var tableName = $"U-{Hashes.Hash160(info.RootKey).ToString()}";
var highestUsedIndexes = new Dictionary <KeyPath, long>();
var highestUnusedIndexes = new Dictionary <KeyPath, long>();
using (var tx = _Engine.GetTransaction())
{
tx.ValuesLazyLoadingIsOn = false;
if (info.KeyPath != null)
{
tx.Insert(tableName, info.KeyPath.ToString(), true);
}
foreach (var row in tx.SelectForward <string, bool>(tableName))
{
if (info.KeyPath == null)
{
return; //Early exit, no need to create the first keys, it has already been done
}
var highestIndexes = row.Value ? highestUsedIndexes : highestUnusedIndexes;
KeyPath k = new KeyPath(row.Key);
long highestKey;
if (!highestIndexes.TryGetValue(k.Parent, out highestKey))
{
highestKey = -1;
}
highestKey = Math.Max(highestKey, k.Indexes.Last());
highestIndexes.AddOrReplace(k.Parent, highestKey);
}
foreach (var trackedPath in TrackedPathes)
{
ExtPubKey pathPubKey = null;
long highestUnused;
if (!highestUnusedIndexes.TryGetValue(trackedPath, out highestUnused))
{
highestUnused = -1;
}
long highestUsed;
if (!highestUsedIndexes.TryGetValue(trackedPath, out highestUsed))
{
highestUsed = -1;
}
KeyPath highestUnusedPath = null;
while (highestUnused - highestUsed < MinGap)
{
if (highestUnused == uint.MaxValue)
{
break;
}
highestUnused++;
highestUnusedPath = trackedPath.Derive((uint)highestUnused);
pathPubKey = pathPubKey ?? new ExtPubKey(info.RootKey).Derive(trackedPath);
var scriptPubKey = pathPubKey.Derive((uint)highestUnused).PubKey.Hash.ScriptPubKey;
InsertKeyInformation(tx, scriptPubKey, new KeyInformation()
{
KeyPath = trackedPath.Derive((uint)highestUnused),
RootKey = info.RootKey
});
}
if (highestUnusedPath != null)
{
byte[] inserted;
bool existed;
tx.Insert(tableName, highestUnusedPath.ToString(), false, out inserted, out existed, dontUpdateIfExists: true);
}
}
tx.Commit();
}
}