mempool: persist with XOR

1 files changed, 4 insertions, 1 deletions

diff --git a/src/streams.h b/src/streams.h
index d58de5233b..fe5df72abe 100644
--- a/src/streams.h
+++ b/src/streams.h
@@ -471,7 +471,7 @@ class AutoFile
 {
 protected:
     std::FILE* m_file;
-    const std::vector<std::byte> m_xor;
+    std::vector<std::byte> m_xor;
 
 public:
     explicit AutoFile(std::FILE* file, std::vector<std::byte> data_xor={}) : m_file{file}, m_xor{std::move(data_xor)} {}
@@ -511,6 +511,9 @@ public:
      */
     bool IsNull() const { return m_file == nullptr; }
 
+    /** Continue with a different XOR key */
+    void SetXor(std::vector<std::byte> data_xor) { m_xor = data_xor; }
+
     /** Implementation detail, only used internally. */
     std::size_t detail_fread(Span<std::byte> dst);