Merge pull request #20666 from vespa-engine/balder/shrink-buffer-to-fit-if-overhead-is-larger-than-8xv7.523.17

If TLS buffer has more than 8x overhead, shrink it to fit prior to po…

1 files changed, 13 insertions, 0 deletions

diff --git a/searchlib/src/vespa/searchlib/transactionlog/common.cpp b/searchlib/src/vespa/searchlib/transactionlog/common.cpp
index 967f8748174..4130ad0bc06 100644
--- a/searchlib/src/vespa/searchlib/transactionlog/common.cpp
+++ b/searchlib/src/vespa/searchlib/transactionlog/common.cpp
@@ -116,6 +116,14 @@ Packet::add(const Packet::Entry & e)
     _range.to(e.serial());
 }
 
+void
+Packet::shrinkToFit() {
+    if (_buf.size() * 8 < _buf.capacity()) {
+        nbostream::Buffer shrunkToFit(_buf.data(), _buf.data() + _buf.size());
+        _buf.swap(shrunkToFit);
+    }
+}
+
 Writer::CommitResult::CommitResult()
     : _callBacks()
 {}
@@ -151,4 +159,9 @@ CommitChunk::createCommitResult() const {
     return Writer::CommitResult(_callBacks);
 }
 
+void
+CommitChunk::shrinkPayloadToFit() {
+    _data.shrinkToFit();
+}
+
 }