1 files changed, 67 insertions, 0 deletions
diff --git a/src/zenstore/cas.h b/src/zenstore/cas.h
new file mode 100644
index 000000000..9c48d4707
--- /dev/null
+++ b/src/zenstore/cas.h
@@ -0,0 +1,67 @@
+// Copyright Epic Games, Inc. All Rights Reserved.
+
+#pragma once
+
+#include <zencore/blake3.h>
+#include <zencore/iobuffer.h>
+#include <zencore/iohash.h>
+#include <zencore/refcount.h>
+#include <zencore/timer.h>
+#include <zenstore/cidstore.h>
+#include <zenstore/hashkeyset.h>
+
+#include <atomic>
+#include <filesystem>
+#include <functional>
+#include <memory>
+#include <string>
+#include <unordered_set>
+
+namespace zen {
+
+class GcContext;
+class GcManager;
+class ScrubContext;
+
+/** Content Addressable Storage interface
+
+  */
+
+class CasStore
+{
+public:
+	virtual ~CasStore() = default;
+
+	const CidStoreConfiguration& Config() { return m_Config; }
+
+	struct InsertResult
+	{
+		bool New = false;
+	};
+
+	enum class InsertMode
+	{
+		kCopyOnly,
+		kMayBeMovedInPlace
+	};
+
+	virtual void		 Initialize(const CidStoreConfiguration& Config)													   = 0;
+	virtual InsertResult InsertChunk(IoBuffer Data, const IoHash& ChunkHash, InsertMode Mode = InsertMode::kMayBeMovedInPlace) = 0;
+	virtual IoBuffer	 FindChunk(const IoHash& ChunkHash)																	   = 0;
+	virtual bool		 ContainsChunk(const IoHash& ChunkHash)																   = 0;
+	virtual void		 FilterChunks(HashKeySet& InOutChunks)																   = 0;
+	virtual void		 Flush()																							   = 0;
+	virtual void		 Scrub(ScrubContext& Ctx)																			   = 0;
+	virtual void		 GarbageCollect(GcContext& GcCtx)																	   = 0;
+	virtual CidStoreSize TotalSize() const																					   = 0;
+
+protected:
+	CidStoreConfiguration m_Config;
+	uint64_t			  m_LastScrubTime = 0;
+};
+
+ZENCORE_API std::unique_ptr<CasStore> CreateCasStore(GcManager& Gc);
+
+void CAS_forcelink();
+
+}  // namespace zen