Keep the backing buffer

2 files changed, 7 insertions, 1 deletions

diff --git a/searchlib/src/vespa/searchlib/transactionlog/chunks.cpp b/searchlib/src/vespa/searchlib/transactionlog/chunks.cpp
index 19309272c63..a78db61429d 100644
--- a/searchlib/src/vespa/searchlib/transactionlog/chunks.cpp
+++ b/searchlib/src/vespa/searchlib/transactionlog/chunks.cpp
@@ -94,14 +94,18 @@ XXH64CompressedChunk::decompress(nbostream & is, uint32_t uncompressedLen) {
     ::decompress(_type, uncompressedLen, compressed, uncompressed, false);
     nbostream data(uncompressed.getData(), uncompressed.getDataLen());
     deserializeEntries(data);
+    _backing = uncompressed.stealBuffer();
     is.adjustReadPos(is.size());
 }
 
 XXH64CompressedChunk::XXH64CompressedChunk(CompressionConfig::Type type, uint8_t level)
     : _type(type),
-      _level(level)
+      _level(level),
+      _backing()
 { }
 
+XXH64CompressedChunk::~XXH64CompressedChunk() = default;
+
 Encoding
 XXH64CompressedChunk::compress(nbostream & os, Encoding::Crc crc) const {
     nbostream org;
diff --git a/searchlib/src/vespa/searchlib/transactionlog/chunks.h b/searchlib/src/vespa/searchlib/transactionlog/chunks.h
index 9b09a0b20fb..6875a1708d9 100644
--- a/searchlib/src/vespa/searchlib/transactionlog/chunks.h
+++ b/searchlib/src/vespa/searchlib/transactionlog/chunks.h
@@ -28,6 +28,7 @@ class XXH64CompressedChunk : public IChunk {
 public:
     using CompressionConfig = vespalib::compression::CompressionConfig;
     XXH64CompressedChunk(CompressionConfig::Type, uint8_t level);
+    ~XXH64CompressedChunk() override;
 protected:
     void decompress(nbostream & os, uint32_t uncompressedLen);
     Encoding compress(nbostream & os, Encoding::Crc crc) const;
@@ -36,6 +37,7 @@ protected:
 private:
     CompressionConfig::Type _type;
     uint8_t                 _level;
+    vespalib::alloc::Alloc  _backing;
 };
 
 }