Make HardFork object available to BlockchainDB and derived DB implementations

This will later allow the HardFork object's DB update functions to be
called when the DB transaction that persists across block add/remove is
open.

4 files changed, 16 insertions, 0 deletions

diff --git a/src/blockchain_db/berkeleydb/db_bdb.cpp b/src/blockchain_db/berkeleydb/db_bdb.cpp
index f572ddf9d..cdbca52f9 100644
--- a/src/blockchain_db/berkeleydb/db_bdb.cpp
+++ b/src/blockchain_db/berkeleydb/db_bdb.cpp
@@ -781,6 +781,8 @@ BlockchainBDB::BlockchainBDB(bool batch_transactions) :
     m_batch_transactions = batch_transactions;
     m_write_txn = nullptr;
     m_height = 0;
+
+    m_hardfork = nullptr;
 }
 
 void BlockchainBDB::open(const std::string& filename, const int db_flags)
diff --git a/src/blockchain_db/blockchain_db.cpp b/src/blockchain_db/blockchain_db.cpp
index b504f946a..4b05ddf24 100644
--- a/src/blockchain_db/blockchain_db.cpp
+++ b/src/blockchain_db/blockchain_db.cpp
@@ -138,6 +138,11 @@ uint64_t BlockchainDB::add_block( const block& blk
   return prev_height;
 }
 
+void BlockchainDB::set_hard_fork(HardFork*& hf)
+{
+  m_hardfork = hf;
+}
+
 void BlockchainDB::pop_block(block& blk, std::vector<transaction>& txs)
 {
   blk = get_top_block();
diff --git a/src/blockchain_db/blockchain_db.h b/src/blockchain_db/blockchain_db.h
index 31d5e2644..5926f34a5 100644
--- a/src/blockchain_db/blockchain_db.h
+++ b/src/blockchain_db/blockchain_db.h
@@ -28,12 +28,15 @@
 #ifndef BLOCKCHAIN_DB_H
 #define BLOCKCHAIN_DB_H
 
+#pragma once
+
 #include <list>
 #include <string>
 #include <exception>
 #include "crypto/hash.h"
 #include "cryptonote_core/cryptonote_basic.h"
 #include "cryptonote_core/difficulty.h"
+#include "cryptonote_core/hardfork.h"
 
 /* DB Driver Interface
  *
@@ -322,6 +325,8 @@ protected:
   uint64_t time_commit1 = 0;
   bool m_auto_remove_logs = true;
 
+  HardFork* m_hardfork;
+
 public:
 
   // virtual dtor
@@ -372,6 +377,8 @@ public:
   virtual void block_txn_stop() = 0;
   virtual void block_txn_abort() = 0;
 
+  virtual void set_hard_fork(HardFork*& hf);
+
   // adds a block with the given metadata to the top of the blockchain, returns the new height
   // NOTE: subclass implementations of this (or the functions it calls) need
   // to handle undoing any partially-added blocks in the event of a failure.
diff --git a/src/blockchain_db/lmdb/db_lmdb.cpp b/src/blockchain_db/lmdb/db_lmdb.cpp
index 8bd64e70d..28e6f5525 100644
--- a/src/blockchain_db/lmdb/db_lmdb.cpp
+++ b/src/blockchain_db/lmdb/db_lmdb.cpp
@@ -945,6 +945,8 @@ BlockchainLMDB::BlockchainLMDB(bool batch_transactions)
   m_write_batch_txn = nullptr;
   m_batch_active = false;
   m_height = 0;
+
+  m_hardfork = nullptr;
 }
 
 void BlockchainLMDB::open(const std::string& filename, const int mdb_flags)