validate canons without yatest_common

1 files changed, 37 insertions, 0 deletions

diff --git a/library/cpp/xdelta3/state/state.h b/library/cpp/xdelta3/state/state.h
new file mode 100644
index 00000000000..297824952a2
--- /dev/null
+++ b/library/cpp/xdelta3/state/state.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#include <library/cpp/xdelta3/proto/state_header.pb.h>
+
+#include <google/protobuf/arena.h>
+
+namespace NXdeltaAggregateColumn {
+
+    constexpr auto ArenaMaxSize = 65525;
+
+    class TState {
+    public:
+        TState(NProtoBuf::Arena& arena, const ui8* data, size_t size);
+
+        const NXdeltaAggregateColumn::TStateHeader& Header() const
+        {
+            return *HeaderPtr;
+        }
+
+        const ui8* PayloadData() const
+        {
+            return Data;
+        }
+
+        size_t PayloadSize() const;
+        TStateHeader::EErrorCode Error() const;
+        TStateHeader::EType Type() const;
+
+        ui32 CalcHash() const;
+
+    private:
+        const ui8* Data = nullptr;
+        TStateHeader* HeaderPtr = nullptr;
+    };
+
+    size_t SizeOfHeader(const TStateHeader& header);
+}