From a9aec5c24d8c4efe9e1ede54e8b8039b4b3f0835 Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Tue, 4 Oct 2016 13:54:29 -0400
Subject: [PATCH] Use BlockChecked signal to send reject messages from
 mapBlockSource

---
 src/main.cpp | 32 ++++++++++++++++++++------------
 src/main.h   |  1 +
 2 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index 2f3528832..a6a43699c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1857,17 +1857,6 @@ void static InvalidChainFound(CBlockIndex* pindexNew)
 }
 
 void static InvalidBlockFound(CBlockIndex *pindex, const CValidationState &state) {
-    int nDoS = 0;
-    if (state.IsInvalid(nDoS)) {
-        std::map<uint256, NodeId>::iterator it = mapBlockSource.find(pindex->GetBlockHash());
-        if (it != mapBlockSource.end() && State(it->second)) {
-            assert (state.GetRejectCode() < REJECT_INTERNAL); // Blocks are never rejected with internal reject codes
-            CBlockReject reject = {(unsigned char)state.GetRejectCode(), state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), pindex->GetBlockHash()};
-            State(it->second)->rejects.push_back(reject);
-            if (nDoS > 0)
-                Misbehaving(it->second, nDoS);
-        }
-    }
     if (!state.CorruptionPossible()) {
         pindex->nStatus |= BLOCK_FAILED_VALID;
         setDirtyBlockIndex.insert(pindex);
@@ -2814,7 +2803,6 @@ bool static ConnectTip(CValidationState& state, const CChainParams& chainparams,
                 InvalidBlockFound(pindexNew, state);
             return error("ConnectTip(): ConnectBlock %s failed", pindexNew->GetBlockHash().ToString());
         }
-        mapBlockSource.erase(pindexNew->GetBlockHash());
         nTime3 = GetTimeMicros(); nTimeConnectTotal += nTime3 - nTime2;
         LogPrint("bench", "  - Connect total: %.2fms [%.2fs]\n", (nTime3 - nTime2) * 0.001, nTimeConnectTotal * 0.000001);
         assert(view.Flush());
@@ -4687,6 +4675,26 @@ void PeerLogicValidation::UpdatedBlockTip(const CBlockIndex *pindexNew, const CB
     }
 }
 
+void PeerLogicValidation::BlockChecked(const CBlock& block, const CValidationState& state) {
+    LOCK(cs_main);
+
+    const uint256 hash(block.GetHash());
+    std::map<uint256, NodeId>::iterator it = mapBlockSource.find(hash);
+
+    int nDoS = 0;
+    if (state.IsInvalid(nDoS)) {
+        if (it != mapBlockSource.end() && State(it->second)) {
+            assert (state.GetRejectCode() < REJECT_INTERNAL); // Blocks are never rejected with internal reject codes
+            CBlockReject reject = {(unsigned char)state.GetRejectCode(), state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), hash};
+            State(it->second)->rejects.push_back(reject);
+            if (nDoS > 0)
+                Misbehaving(it->second, nDoS);
+        }
+    }
+    if (it != mapBlockSource.end())
+        mapBlockSource.erase(it);
+}
+
 //////////////////////////////////////////////////////////////////////////////
 //
 // Messages
diff --git a/src/main.h b/src/main.h
index 77179b25b..889b6a2da 100644
--- a/src/main.h
+++ b/src/main.h
@@ -536,6 +536,7 @@ public:
     PeerLogicValidation(CConnman* connmanIn) : connman(connmanIn) {}
 
     virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload);
+    virtual void BlockChecked(const CBlock& block, const CValidationState& state);
 };
 
 struct CNodeStateStats {