Merge pull request #9008

9a89e2d wallet2: call on_reorg callback in handle_reorg (j-berman)
1df5630 wallet2: add on_reorg callback (Crypto City)

src/wallet/wallet2.cpp

@@ -4324,7 +4324,10 @@ void wallet2::handle_reorg(uint64_t height, std::map<std::pair<uint64_t, uint64_
   //               C
   THROW_WALLET_EXCEPTION_IF(height < m_blockchain.offset() && m_blockchain.size() > m_blockchain.offset(),
       error::wallet_internal_error, "Daemon claims reorg below last checkpoint");
-  detach_blockchain(height, output_tracker_cache);
+  detached_blockchain_data dbd = detach_blockchain(height, output_tracker_cache);
+
+  if (m_callback)
+    m_callback->on_reorg(height, dbd.detached_blockchain.size(), dbd.detached_tx_hashes.size());
 }
 //----------------------------------------------------------------------------------------------------
 bool wallet2::deinit()

src/wallet/wallet2.h

@@ -139,6 +139,7 @@ private:
   public:
     // Full wallet callbacks
     virtual void on_new_block(uint64_t height, const cryptonote::block& block) {}
+    virtual void on_reorg(uint64_t height, uint64_t blocks_detached, size_t transfers_detached) {}
     virtual void on_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount, uint64_t burnt, const cryptonote::subaddress_index& subaddr_index, bool is_change, uint64_t unlock_time) {}
     virtual void on_unconfirmed_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount, const cryptonote::subaddress_index& subaddr_index) {}
     virtual void on_money_spent(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& in_tx, uint64_t amount, const cryptonote::transaction& spend_tx, const cryptonote::subaddress_index& subaddr_index) {}