Remove txn which are invalidated by coinbase maturity during reorg

1 files changed, 26 insertions, 0 deletions

diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index e13f1cc350..ff04a8ad9a 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -6,6 +6,7 @@
 #include "txmempool.h"
 
 #include "clientversion.h"
+#include "main.h" // for COINBASE_MATURITY
 #include "streams.h"
 #include "util.h"
 #include "utilmoneystr.h"
@@ -453,6 +454,31 @@ void CTxMemPool::remove(const CTransaction &tx, std::list<CTransaction>& removed
     }
 }
 
+void CTxMemPool::removeCoinbaseSpends(const CCoinsViewCache *pcoins, unsigned int nMemPoolHeight)
+{
+    // Remove transactions spending a coinbase which are now immature
+    LOCK(cs);
+    list<CTransaction> transactionsToRemove;
+    for (std::map<uint256, CTxMemPoolEntry>::const_iterator it = mapTx.begin(); it != mapTx.end(); it++) {
+        const CTransaction& tx = it->second.GetTx();
+        BOOST_FOREACH(const CTxIn& txin, tx.vin) {
+            std::map<uint256, CTxMemPoolEntry>::const_iterator it2 = mapTx.find(txin.prevout.hash);
+            if (it2 != mapTx.end())
+                continue;
+            const CCoins *coins = pcoins->AccessCoins(txin.prevout.hash);
+            if (fSanityCheck) assert(coins);
+            if (!coins || (coins->IsCoinBase() && nMemPoolHeight - coins->nHeight < COINBASE_MATURITY)) {
+                transactionsToRemove.push_back(tx);
+                break;
+            }
+        }
+    }
+    BOOST_FOREACH(const CTransaction& tx, transactionsToRemove) {
+        list<CTransaction> removed;
+        remove(tx, removed, true);
+    }
+}
+
 void CTxMemPool::removeConflicts(const CTransaction &tx, std::list<CTransaction>& removed)
 {
     // Remove transactions which depend on inputs of tx, recursively