print top block hash in daemon diff command

and add top block hash in get_info RPC

3 files changed, 11 insertions, 1 deletions

diff --git a/src/daemon/rpc_command_executor.cpp b/src/daemon/rpc_command_executor.cpp
index 686af69c2..9e7f3fdc3 100644
--- a/src/daemon/rpc_command_executor.cpp
+++ b/src/daemon/rpc_command_executor.cpp
@@ -241,6 +241,7 @@ bool t_rpc_command_executor::show_difficulty() {
   }
 
   tools::success_msg_writer() <<   "BH: " << res.height
+                              << ", TH: " << res.top_block_hash
                               << ", DIFF: " << res.difficulty
                               << ", HR: " << (int) res.difficulty / res.target << " H/s";
 
diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index b566e7318..945557a46 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -117,7 +117,14 @@ namespace cryptonote
   bool core_rpc_server::on_get_info(const COMMAND_RPC_GET_INFO::request& req, COMMAND_RPC_GET_INFO::response& res)
   {
     CHECK_CORE_BUSY();
-    res.height = m_core.get_current_blockchain_height();
+    crypto::hash top_hash;
+    if (!m_core.get_blockchain_top(res.height, top_hash))
+    {
+      res.status = "Failed";
+      return false;
+    }
+    ++res.height; // turn top block height into blockchain height
+    res.top_block_hash = string_tools::pod_to_hex(top_hash);
     res.target_height = m_core.get_target_blockchain_height();
     res.difficulty = m_core.get_blockchain_storage().get_difficulty_for_next_block();
     res.target = m_core.get_blockchain_storage().get_current_hard_fork_version() < 2 ? DIFFICULTY_TARGET_V1 : DIFFICULTY_TARGET;
diff --git a/src/rpc/core_rpc_server_commands_defs.h b/src/rpc/core_rpc_server_commands_defs.h
index b70164614..73cdbbe07 100644
--- a/src/rpc/core_rpc_server_commands_defs.h
+++ b/src/rpc/core_rpc_server_commands_defs.h
@@ -282,6 +282,7 @@ namespace cryptonote
       uint64_t white_peerlist_size;
       uint64_t grey_peerlist_size;
       bool testnet;
+      std::string top_block_hash;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(status)
@@ -296,6 +297,7 @@ namespace cryptonote
         KV_SERIALIZE(white_peerlist_size)
         KV_SERIALIZE(grey_peerlist_size)
         KV_SERIALIZE(testnet)
+        KV_SERIALIZE(top_block_hash)
       END_KV_SERIALIZE_MAP()
     };
   };