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a0b05b4bf0
Summary: This passes ObjectFetchContext into the backing store to prepare for adding logging for the cause of server fetches. In following changes I will add logging in the HgQueuedBackingStore. Ultimately we will want to move this logging to be closer to the data fetching (in HgDatapackStore and HgImporter), but I plan to temporarily add logging to the HgQueuedBackingStore to simplify so that we can more quickly roll out. Reviewed By: chadaustin Differential Revision: D22022992 fbshipit-source-id: ccb428458cbf7a1e33aaf9be9d0d766c45acedb3
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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*/
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#pragma once
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#include "BackingStore.h"
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#include "eden/fs/store/ObjectFetchContext.h"
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namespace facebook {
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namespace eden {
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/*
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* A dummy BackingStore implementation, that always throws std::domain_error
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* for any ID that is looked up.
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*/
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class EmptyBackingStore : public BackingStore {
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public:
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EmptyBackingStore();
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~EmptyBackingStore() override;
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folly::SemiFuture<std::unique_ptr<Tree>> getTree(
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const Hash& id,
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ObjectFetchContext& context,
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ImportPriority priority = ImportPriority::kNormal()) override;
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folly::SemiFuture<std::unique_ptr<Blob>> getBlob(
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const Hash& id,
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ObjectFetchContext& context,
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ImportPriority priority = ImportPriority::kNormal()) override;
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folly::SemiFuture<std::unique_ptr<Tree>> getTreeForCommit(
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const Hash& commitID) override;
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folly::SemiFuture<std::unique_ptr<Tree>> getTreeForManifest(
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const Hash& commitID,
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const Hash& manifestID) override;
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};
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} // namespace eden
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} // namespace facebook
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