1 files changed, 23 insertions, 0 deletions
diff --git a/src/node/coin.cpp b/src/node/coin.cpp
new file mode 100644
index 000000000..f4f86cdbe
--- /dev/null
+++ b/src/node/coin.cpp
@@ -0,0 +1,23 @@
+// Copyright (c) 2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <node/coin.h>
+
+#include <node/context.h>
+#include <txmempool.h>
+#include <validation.h>
+
+void FindCoins(const NodeContext& node, std::map<COutPoint, Coin>& coins)
+{
+    assert(node.mempool);
+    LOCK2(cs_main, node.mempool->cs);
+    CCoinsViewCache& chain_view = ::ChainstateActive().CoinsTip();
+    CCoinsViewMemPool mempool_view(&chain_view, *node.mempool);
+    for (auto& coin : coins) {
+        if (!mempool_view.GetCoin(coin.first, coin.second)) {
+            // Either the coin is not in the CCoinsViewCache or is spent. Clear it.
+            coin.second.Clear();
+        }
+    }
+}