1 files changed, 15 insertions, 1 deletions
diff --git a/src/coins.cpp b/src/coins.cpp
index 723e114708..4d1dbdea4e 100644
--- a/src/coins.cpp
+++ b/src/coins.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin Core developers
+// Copyright (c) 2012-2015 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -144,6 +144,11 @@ bool CCoinsViewCache::HaveCoins(const uint256 &txid) const {
     return (it != cacheCoins.end() && !it->second.coins.vout.empty());
 }
 
+bool CCoinsViewCache::HaveCoinsInCache(const uint256 &txid) const {
+    CCoinsMap::const_iterator it = cacheCoins.find(txid);
+    return it != cacheCoins.end();
+}
+
 uint256 CCoinsViewCache::GetBestBlock() const {
     if (hashBlock.IsNull())
         hashBlock = base->GetBestBlock();
@@ -206,6 +211,15 @@ bool CCoinsViewCache::Flush() {
     return fOk;
 }
 
+void CCoinsViewCache::Uncache(const uint256& hash)
+{
+    CCoinsMap::iterator it = cacheCoins.find(hash);
+    if (it != cacheCoins.end() && it->second.flags == 0) {
+        cachedCoinsUsage -= it->second.coins.DynamicMemoryUsage();
+        cacheCoins.erase(it);
+    }
+}
+
 unsigned int CCoinsViewCache::GetCacheSize() const {
     return cacheCoins.size();
 }