mirror of
https://github.com/facebook/sapling.git
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0d634a1296
Summary: In support of making Eden's file access stateless, add a facade that connects the BlobCache and ObjectStore, allowing FileInode to fetch blobs, minimizing reloads and memory usage. Reviewed By: strager Differential Revision: D10850143 fbshipit-source-id: 4307f7c1143aecad1284ea3cadf3e4efca9a3925
57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
/*
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* Copyright (c) 2016-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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#pragma once
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#include <unordered_map>
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#include "eden/fs/store/IObjectStore.h"
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#include "eden/fs/model/Blob.h"
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#include "eden/fs/model/Hash.h"
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#include "eden/fs/model/Tree.h"
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#include "eden/fs/store/BlobMetadata.h"
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namespace facebook {
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namespace eden {
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/**
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* Fake implementation of IObjectStore that allows the data to be injected
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* directly. This is designed to be used for unit tests.
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*/
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class FakeObjectStore : public IObjectStore {
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public:
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FakeObjectStore();
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~FakeObjectStore() override;
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void addTree(Tree&& tree);
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void addBlob(Blob&& blob);
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void setTreeForCommit(const Hash& commitID, Tree&& tree);
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folly::Future<std::shared_ptr<const Tree>> getTree(
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const Hash& id) const override;
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folly::Future<std::shared_ptr<const Blob>> getBlob(
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const Hash& id) const override;
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folly::Future<std::shared_ptr<const Tree>> getTreeForCommit(
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const Hash& commitID) const override;
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folly::Future<BlobMetadata> getBlobMetadata(const Hash& id) const override;
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folly::Future<folly::Unit> prefetchBlobs(
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const std::vector<Hash>& ids) const override;
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size_t getAccessCount(const Hash& hash) const;
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private:
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std::unordered_map<Hash, Tree> trees_;
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std::unordered_map<Hash, Blob> blobs_;
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std::unordered_map<Hash, Tree> commits_;
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std::unordered_map<Hash, BlobMetadata> blobMetadata_;
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mutable std::unordered_map<Hash, size_t> accessCounts_;
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};
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} // namespace eden
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} // namespace facebook
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