1 files changed, 7 insertions, 0 deletions
diff --git a/src/cryptonote_core/tx_pool.h b/src/cryptonote_core/tx_pool.h
index 77f2e3483..7c8f4a449 100644
--- a/src/cryptonote_core/tx_pool.h
+++ b/src/cryptonote_core/tx_pool.h
@@ -34,6 +34,7 @@
 #include <set>
 #include <unordered_map>
 #include <unordered_set>
+#include <queue>
 #include <boost/serialization/version.hpp>
 #include <boost/utility.hpp>
 
@@ -133,6 +134,12 @@ namespace cryptonote
     key_images_container m_spent_key_images;
     epee::math_helper::once_a_time_seconds<30> m_remove_stuck_tx_interval;
 
+    typedef std::unordered_map<crypto::hash, double> tx_by_fee_entry;
+
+    //TODO: add fee_per_kb element to type tx_details and replace this
+    //functionality by just making m_transactions a std::set
+    std::set<tx_by_fee_entry> m_txs_by_fee;
+
     //transactions_container m_alternative_transactions;
 
     std::string m_config_folder;