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// 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
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