Improve cryptonote (block and tx) binary read performance

1 files changed, 4 insertions, 1 deletions

diff --git a/src/rpc/rpc_payment.cpp b/src/rpc/rpc_payment.cpp
index bf6584f72..f0c513911 100644
--- a/src/rpc/rpc_payment.cpp
+++ b/src/rpc/rpc_payment.cpp
@@ -293,12 +293,13 @@ namespace cryptonote
     MINFO("loading rpc payments data from " << state_file_path);
     std::ifstream data;
     data.open(state_file_path, std::ios_base::binary | std::ios_base::in);
+    std::string bytes(std::istream_iterator<char>{data}, std::istream_iterator<char>{});
     if (!data.fail())
     {
       bool loaded = false;
       try
       {
-        binary_archive<false> ar(data);
+        binary_archive<false> ar{epee::strspan<std::uint8_t>(bytes)};
         if (::serialization::serialize(ar, *this))
           if (::serialization::check_stream_state(ar))
             loaded = true;
@@ -306,6 +307,8 @@ namespace cryptonote
       catch (...) {}
       if (!loaded)
       {
+        bytes.clear();
+        bytes.shrink_to_fit();
         try
         {
           boost::archive::portable_binary_iarchive a(data);