Add CSerializedNetMsg::Copy() helper

This makes code that uses the helper less verbose.

Moreover, this makes net_processing C++20 compliant. Otherwise, it would
lead to a compile error (see below). C++20 disables aggregate
initialization when any constructor is declared. See
http://open-std.org/JTC1/SC22/WG21/docs/papers/2018/p1008r1.pdf

net_processing.cpp:1627:42: error: no matching constructor for initialization of 'CSerializedNetMsg'
            m_connman.PushMessage(pnode, CSerializedNetMsg{ser_cmpctblock.data, ser_cmpctblock.m_type});
                                         ^                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1 files changed, 1 insertions, 1 deletions

diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index 77efac3364..34dd7991be 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -1624,7 +1624,7 @@ void PeerManagerImpl::NewPoWValidBlock(const CBlockIndex *pindex, const std::sha
                     hashBlock.ToString(), pnode->GetId());
 
             const CSerializedNetMsg& ser_cmpctblock{lazy_ser.get()};
-            m_connman.PushMessage(pnode, CSerializedNetMsg{ser_cmpctblock.data, ser_cmpctblock.m_type});
+            m_connman.PushMessage(pnode, ser_cmpctblock.Copy());
             state.pindexBestHeaderSent = pindex;
         }
     });