moonchen commented on code in PR #13293:
URL: https://github.com/apache/trafficserver/pull/13293#discussion_r3431819398
##########
include/iocore/net/ProxyProtocol.h:
##########
@@ -82,6 +82,25 @@ class ProxyProtocol
other.tlv.clear();
}
~ProxyProtocol() = default;
+
+ /** Release owned heap and reset to the default-constructed state.
+ *
+ * Swap rather than clear() the containers: clear() retains capacity, which
would be abandoned
+ * (leaked) when the slot is reused, since the NetVConnection allocators are
Destruct_on_free=false
+ * and so never run ~ProxyProtocol.
+ */
+ void
+ reset()
+ {
+ std::string{}.swap(additional_data);
+ std::unordered_map<uint8_t, std::string_view>{}.swap(tlv);
Review Comment:
if the types change here, so could the meaning of swap(). I'd rather make
it explicit so the programmer can make the call.
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