mirror of
https://github.com/facebook/sapling.git
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58f352b807
Summary: During checkout and stats, count every object fetch and which level of cache it was served from. Reviewed By: simpkins Differential Revision: D19186333 fbshipit-source-id: fc0a74db297b9c723682e245996a7befd762f933
92 lines
2.5 KiB
C++
92 lines
2.5 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 <folly/Range.h>
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#include <folly/futures/Future.h>
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#include "eden/fs/store/StatsFetchContext.h"
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#include "eden/fs/utils/PathFuncs.h"
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namespace folly {
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template <typename T>
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class Future;
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} // namespace folly
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namespace apache {
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namespace thrift {
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class ResponseChannelRequest;
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}
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} // namespace apache
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namespace facebook {
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namespace eden {
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class DiffCallback;
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class GitIgnoreStack;
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class ObjectFetchContext;
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class ObjectStore;
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class UserInfo;
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class TopLevelIgnores;
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class EdenMount;
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/**
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* A helper class to store parameters for a TreeInode::diff() operation.
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*
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* These parameters remain fixed across all subdirectories being diffed.
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* Primarily intent is to compound related diff attributes.
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*
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* The DiffContext must be alive for the duration of the async operation it is
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* used in.
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*/
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class DiffContext {
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public:
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using LoadFileFunction = std::function<
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folly::Future<std::string>(ObjectFetchContext&, RelativePathPiece)>;
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DiffContext(
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DiffCallback* cb,
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bool listIgnored,
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const ObjectStore* os,
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std::unique_ptr<TopLevelIgnores> topLevelIgnores,
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LoadFileFunction loadFileContentsFromPath,
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apache::thrift::ResponseChannelRequest* FOLLY_NULLABLE request = nullptr);
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DiffContext(DiffCallback* cb, const ObjectStore* os);
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DiffContext(const DiffContext&) = delete;
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DiffContext& operator=(const DiffContext&) = delete;
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DiffContext(DiffContext&&) = delete;
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DiffContext& operator=(DiffContext&&) = delete;
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~DiffContext();
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DiffCallback* const callback;
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const ObjectStore* const store;
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/**
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* If listIgnored is true information about ignored files will be reported.
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* If listIgnored is false then ignoredFile() will never be called on the
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* callback. The diff operation may be faster with listIgnored=false, since
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* it can completely omit processing ignored subdirectories.
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*/
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bool const listIgnored;
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const GitIgnoreStack* getToplevelIgnore() const;
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bool isCancelled() const;
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LoadFileFunction getLoadFileContentsFromPath() const;
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StatsFetchContext& getFetchContext() {
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return fetchContext_;
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}
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private:
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std::unique_ptr<TopLevelIgnores> topLevelIgnores_;
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const LoadFileFunction loadFileContentsFromPath_;
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apache::thrift::ResponseChannelRequest* const FOLLY_NULLABLE request_;
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StatsFetchContext fetchContext_;
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};
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} // namespace eden
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} // namespace facebook
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