6 files changed, 26 insertions, 12 deletions
diff --git a/src/node/coinstats.cpp b/src/node/coinstats.cpp
index ec52a08ac..e3c4c828b 100644
--- a/src/node/coinstats.cpp
+++ b/src/node/coinstats.cpp
@@ -33,7 +33,7 @@ static void ApplyStats(CCoinsStats &stats, CHashWriter& ss, const uint256& hash,
 }
 
 //! Calculate statistics about the unspent transaction output set
-bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats)
+bool GetUTXOStats(CCoinsView* view, CCoinsStats& stats, const std::function<void()>& interruption_point)
 {
     stats = CCoinsStats();
     std::unique_ptr<CCoinsViewCursor> pcursor(view->Cursor());
@@ -49,6 +49,7 @@ bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats)
     uint256 prevkey;
     std::map<uint32_t, Coin> outputs;
     while (pcursor->Valid()) {
+        interruption_point();
         COutPoint key;
         Coin coin;
         if (pcursor->GetKey(key) && pcursor->GetValue(coin)) {
diff --git a/src/node/coinstats.h b/src/node/coinstats.h
index a19af0fd1..d9cdaa303 100644
--- a/src/node/coinstats.h
+++ b/src/node/coinstats.h
@@ -10,6 +10,7 @@
 #include <uint256.h>
 
 #include <cstdint>
+#include <functional>
 
 class CCoinsView;
 
@@ -29,6 +30,6 @@ struct CCoinsStats
 };
 
 //! Calculate statistics about the unspent transaction output set
-bool GetUTXOStats(CCoinsView* view, CCoinsStats& stats);
+bool GetUTXOStats(CCoinsView* view, CCoinsStats& stats, const std::function<void()>& interruption_point = {});
 
 #endif // BITCOIN_NODE_COINSTATS_H
diff --git a/src/node/context.h b/src/node/context.h
index 566ff170b..c45d9e668 100644
--- a/src/node/context.h
+++ b/src/node/context.h
@@ -5,6 +5,7 @@
 #ifndef BITCOIN_NODE_CONTEXT_H
 #define BITCOIN_NODE_CONTEXT_H
 
+#include <cassert>
 #include <memory>
 #include <vector>
 
@@ -13,6 +14,7 @@ class BanMan;
 class CConnman;
 class CScheduler;
 class CTxMemPool;
+class ChainstateManager;
 class PeerLogicValidation;
 namespace interfaces {
 class Chain;
@@ -33,6 +35,7 @@ struct NodeContext {
     std::unique_ptr<CConnman> connman;
     CTxMemPool* mempool{nullptr}; // Currently a raw pointer because the memory is not managed by this struct
     std::unique_ptr<PeerLogicValidation> peer_logic;
+    ChainstateManager* chainman{nullptr}; // Currently a raw pointer because the memory is not managed by this struct
     std::unique_ptr<BanMan> banman;
     ArgsManager* args{nullptr}; // Currently a raw pointer because the memory is not managed by this struct
     std::unique_ptr<interfaces::Chain> chain;
@@ -46,4 +49,10 @@ struct NodeContext {
     ~NodeContext();
 };
 
+inline ChainstateManager& EnsureChainman(const NodeContext& node)
+{
+    assert(node.chainman);
+    return *node.chainman;
+}
+
 #endif // BITCOIN_NODE_CONTEXT_H
diff --git a/src/node/transaction.cpp b/src/node/transaction.cpp
index 201406ce3..3841d8687 100644
--- a/src/node/transaction.cpp
+++ b/src/node/transaction.cpp
@@ -78,6 +78,10 @@ TransactionError BroadcastTransaction(NodeContext& node, const CTransactionRef t
     }
 
     if (relay) {
+        // the mempool tracks locally submitted transactions to make a
+        // best-effort of initial broadcast
+        node.mempool->AddUnbroadcastTx(hashTx);
+
         RelayTransaction(hashTx, *node.connman);
     }
 
diff --git a/src/node/transaction.h b/src/node/transaction.h
index 98d65bc4d..6491700d4 100644
--- a/src/node/transaction.h
+++ b/src/node/transaction.h
@@ -6,11 +6,19 @@
 #define BITCOIN_NODE_TRANSACTION_H
 
 #include <attributes.h>
+#include <policy/feerate.h>
 #include <primitives/transaction.h>
 #include <util/error.h>
 
 struct NodeContext;
 
+/** Maximum fee rate for sendrawtransaction and testmempoolaccept RPC calls.
+ * Also used by the GUI when broadcasting a completed PSBT.
+ * By default, a transaction with a fee rate higher than this will be rejected
+ * by these RPCs and the GUI. This can be overridden with the maxfeerate argument.
+ */
+static const CFeeRate DEFAULT_MAX_RAW_TX_FEE_RATE{COIN / 10};
+
 /**
  * Submit a transaction to the mempool and (optionally) relay it to all P2P peers.
  *
diff --git a/src/node/utxo_snapshot.h b/src/node/utxo_snapshot.h
index 702a0cbe5..c8b4d60fd 100644
--- a/src/node/utxo_snapshot.h
+++ b/src/node/utxo_snapshot.h
@@ -35,16 +35,7 @@ public:
             m_coins_count(coins_count),
             m_nchaintx(nchaintx) { }
 
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action)
-    {
-        READWRITE(m_base_blockhash);
-        READWRITE(m_coins_count);
-        READWRITE(m_nchaintx);
-    }
-
+    SERIALIZE_METHODS(SnapshotMetadata, obj) { READWRITE(obj.m_base_blockhash, obj.m_coins_count, obj.m_nchaintx); }
 };
 
 #endif // BITCOIN_NODE_UTXO_SNAPSHOT_H