Remove payload copy in all outgoing p2p messages

1 files changed, 6 insertions, 3 deletions

diff --git a/src/cryptonote_protocol/cryptonote_protocol_handler.h b/src/cryptonote_protocol/cryptonote_protocol_handler.h
index 28530f3e7..80dd2bc39 100644
--- a/src/cryptonote_protocol/cryptonote_protocol_handler.h
+++ b/src/cryptonote_protocol/cryptonote_protocol_handler.h
@@ -46,6 +46,8 @@
 #include "block_queue.h"
 #include "common/perf_timer.h"
 #include "cryptonote_basic/connection_context.h"
+#include "net/levin_base.h"
+#include "p2p/net_node_common.h"
 #include <boost/circular_buffer.hpp>
 
 PUSH_WARNINGS
@@ -195,10 +197,11 @@ namespace cryptonote
       bool post_notify(typename t_parameter::request& arg, cryptonote_connection_context& context)
       {
         LOG_PRINT_L2("[" << epee::net_utils::print_connection_context_short(context) << "] post " << typeid(t_parameter).name() << " -->");
-        epee::byte_slice blob;
-        epee::serialization::store_t_to_binary(arg, blob, 256 * 1024); // optimize for block responses
+
+        epee::levin::message_writer out{256 * 1024}; // optimize for block responses
+        epee::serialization::store_t_to_binary(arg, out.buffer);
         //handler_response_blocks_now(blob.size()); // XXX
-        return m_p2p->invoke_notify_to_peer(t_parameter::ID, epee::to_span(blob), context);
+        return m_p2p->invoke_notify_to_peer(t_parameter::ID, std::move(out), context);
       }
   };