rpc: add a new RPC to get current txpool backlog (sizes and fees)

4 files changed, 31 insertions, 0 deletions

diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp
index 19f4aaca9..98569b46b 100644
--- a/src/cryptonote_core/cryptonote_core.cpp
+++ b/src/cryptonote_core/cryptonote_core.cpp
@@ -246,6 +246,12 @@ namespace cryptonote
     return m_blockchain_storage.get_transactions_blobs(txs_ids, txs, missed_txs);
   }
   //-----------------------------------------------------------------------------------------------
+  bool core::get_txpool_backlog(std::vector<tx_backlog_entry>& backlog) const
+  {
+    m_mempool.get_transaction_backlog(backlog);
+    return true;
+  }
+  //-----------------------------------------------------------------------------------------------
   bool core::get_transactions(const std::vector<crypto::hash>& txs_ids, std::list<transaction>& txs, std::list<crypto::hash>& missed_txs) const
   {
     return m_blockchain_storage.get_transactions(txs_ids, txs, missed_txs);
diff --git a/src/cryptonote_core/cryptonote_core.h b/src/cryptonote_core/cryptonote_core.h
index f17a6dfe6..84f59919e 100644
--- a/src/cryptonote_core/cryptonote_core.h
+++ b/src/cryptonote_core/cryptonote_core.h
@@ -428,6 +428,13 @@ namespace cryptonote
      bool get_pool_transactions(std::list<transaction>& txs) const;
      
      /**
+      * @copydoc tx_memory_pool::get_txpool_backlog
+      *
+      * @note see tx_memory_pool::get_txpool_backlog
+      */
+     bool get_txpool_backlog(std::vector<tx_backlog_entry>& backlog) const;
+     
+     /**
       * @copydoc tx_memory_pool::get_transactions
       *
       * @note see tx_memory_pool::get_transactions
diff --git a/src/cryptonote_core/tx_pool.cpp b/src/cryptonote_core/tx_pool.cpp
index 73f519079..7b98acb63 100644
--- a/src/cryptonote_core/tx_pool.cpp
+++ b/src/cryptonote_core/tx_pool.cpp
@@ -553,6 +553,17 @@ namespace cryptonote
     });
   }
   //------------------------------------------------------------------
+  void tx_memory_pool::get_transaction_backlog(std::vector<tx_backlog_entry>& backlog) const
+  {
+    CRITICAL_REGION_LOCAL(m_transactions_lock);
+    CRITICAL_REGION_LOCAL1(m_blockchain);
+    const uint64_t now = time(NULL);
+    m_blockchain.for_all_txpool_txes([&backlog, now](const crypto::hash &txid, const txpool_tx_meta_t &meta, const cryptonote::blobdata *bd){
+      backlog.push_back({meta.blob_size, meta.fee, meta.receive_time - now});
+      return true;
+    });
+  }
+  //------------------------------------------------------------------
   void tx_memory_pool::get_transaction_stats(struct txpool_stats& stats) const
   {
     CRITICAL_REGION_LOCAL(m_transactions_lock);
diff --git a/src/cryptonote_core/tx_pool.h b/src/cryptonote_core/tx_pool.h
index 47a41d070..6414620c9 100644
--- a/src/cryptonote_core/tx_pool.h
+++ b/src/cryptonote_core/tx_pool.h
@@ -243,6 +243,13 @@ namespace cryptonote
     void get_transaction_hashes(std::vector<crypto::hash>& txs) const;
 
     /**
+     * @brief get (size, fee, receive time) for all transaction in the pool
+     *
+     * @param txs return-by-reference that data
+     */
+    void get_transaction_backlog(std::vector<tx_backlog_entry>& backlog) const;
+
+    /**
      * @brief get a summary statistics of all transaction hashes in the pool
      *
      * @param stats return-by-reference the pool statistics