wallet_rpc_server: new estimate_tx_size_and_weight RPC

1 files changed, 19 insertions, 0 deletions

diff --git a/src/wallet/wallet_rpc_server.cpp b/src/wallet/wallet_rpc_server.cpp
index de501f056..e7875021f 100644
--- a/src/wallet/wallet_rpc_server.cpp
+++ b/src/wallet/wallet_rpc_server.cpp
@@ -4291,6 +4291,25 @@ namespace tools
     return true;
   }
   //------------------------------------------------------------------------------------------------------------------------------
+  bool wallet_rpc_server::on_estimate_tx_size_and_weight(const wallet_rpc::COMMAND_RPC_ESTIMATE_TX_SIZE_AND_WEIGHT::request& req, wallet_rpc::COMMAND_RPC_ESTIMATE_TX_SIZE_AND_WEIGHT::response& res, epee::json_rpc::error& er, const connection_context *ctx)
+  {
+    if (!m_wallet) return not_open(er);
+    try
+    {
+      size_t extra_size = 34 /* pubkey */ + 10 /* encrypted payment id */; // typical makeup
+      const std::pair<size_t, uint64_t> sw = m_wallet->estimate_tx_size_and_weight(req.rct, req.n_inputs, req.ring_size, req.n_outputs, extra_size);
+      res.size = sw.first;
+      res.weight = sw.second;
+    }
+    catch (const std::exception &e)
+    {
+      er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
+      er.message = "Failed to determine size and weight";
+      return false;
+    }
+    return true;
+  }
+  //------------------------------------------------------------------------------------------------------------------------------
   bool wallet_rpc_server::on_get_version(const wallet_rpc::COMMAND_RPC_GET_VERSION::request& req, wallet_rpc::COMMAND_RPC_GET_VERSION::response& res, epee::json_rpc::error& er, const connection_context *ctx)
   {
     res.version = WALLET_RPC_VERSION;