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451ebf24ce
This re-implements the binary cache database in C++, allowing it to be used by other Store backends, in particular the S3 backend.
29 lines
673 B
C++
29 lines
673 B
C++
#pragma once
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#include "ref.hh"
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#include "nar-info.hh"
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namespace nix {
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class NarInfoDiskCache
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{
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public:
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typedef enum { oValid, oInvalid, oUnknown } Outcome;
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virtual void createCache(const std::string & uri) = 0;
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virtual bool cacheExists(const std::string & uri) = 0;
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virtual std::pair<Outcome, std::shared_ptr<NarInfo>> lookupNarInfo(
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const std::string & uri, const Path & storePath) = 0;
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virtual void upsertNarInfo(
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const std::string & uri, std::shared_ptr<ValidPathInfo> narInfo) = 0;
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};
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/* Return a singleton cache object that can be used concurrently by
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multiple threads. */
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ref<NarInfoDiskCache> getNarInfoDiskCache();
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}
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