common/Journald: avoid future mis-use of copy

EntryEncoderBase have self-referencing pointers in it, and cannot be
copied safely.

Signed-off-by: 胡玮文 <huww98@outlook.com>

diff --git a/src/common/Journald.cc b/src/common/Journald.cc
index 983a190b1a7078363593b259aabf4134b298a87b..164b65834a64973d8356cb7c086415dbfb381d88 100644 (file)
--- a/src/common/Journald.cc
+++ b/src/common/Journald.cc
@@ -87,6 +87,8 @@ class EntryEncoderBase {
     m_msg_vec[0].iov_len = static_segment.size();
   }
 
+  EntryEncoderBase(const EntryEncoderBase&) = delete; // we have self-referencing pointers
+
   constexpr struct iovec *iovec() { return this->m_msg_vec; }
   constexpr std::size_t iovec_len()
   {