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https://github.com/facebook/sapling.git
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1eed0364e3
Summary: If a directory is present in the overlay, we still need to check if a TreeEntry exists from the source control data structures. Previously this was causing us to incorrectly report directories as empty if they exist in the local overlay, even when they had contents from the main Tree. Reviewed By: wez Differential Revision: D3434219 fbshipit-source-id: f872f90075602dfdc7b217f50eefcd7c248512e7
95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
/*
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* Copyright (c) 2016, 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 "eden/fuse/Inodes.h"
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namespace facebook {
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namespace eden {
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class EdenMount;
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class Hash;
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class ObjectStore;
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class Overlay;
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class Tree;
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class TreeEntry;
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// Represents a Tree instance in a form that FUSE can consume
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class TreeInode : public fusell::DirInode {
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public:
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TreeInode(
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EdenMount* mount,
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std::unique_ptr<Tree>&& tree,
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fuse_ino_t parent,
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fuse_ino_t ino);
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/// Construct an inode that only has backing in the Overlay area
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TreeInode(EdenMount* mount, fuse_ino_t parent, fuse_ino_t ino);
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~TreeInode();
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folly::Future<fusell::Dispatcher::Attr> getattr() override;
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folly::Future<std::shared_ptr<fusell::InodeBase>> getChildByName(
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PathComponentPiece namepiece) override;
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folly::Future<std::unique_ptr<fusell::DirHandle>> opendir(
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const struct fuse_file_info& fi) override;
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const Tree* getTree() const;
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fuse_ino_t getParent() const;
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fuse_ino_t getInode() const;
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/**
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* Get the EdenMount that this TreeInode belongs to.
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*
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* The EdenMount is guaranteed to remain valid for at least the lifetime of
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* the TreeInode object.
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*/
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EdenMount* getMount() const;
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/**
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* Get the ObjectStore for this mount point.
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*
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* The ObjectStore is guaranteed to remain valid for at least the lifetime of
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* the TreeInode object. (The ObjectStore is owned by the EdenMount.)
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*/
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ObjectStore* getStore() const;
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const std::shared_ptr<Overlay>& getOverlay() const;
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folly::Future<fusell::DirInode::CreateResult>
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create(PathComponentPiece name, mode_t mode, int flags) override;
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folly::Future<fuse_entry_param> mkdir(PathComponentPiece name, mode_t mode)
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override;
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/** Called in a thrift context to switch the active snapshot.
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* Since this is called in a thrift context, RequestData::get() won't
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* return the usual results and the appropriate information must
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* be passed down from the thrift server itself.
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*/
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void performCheckout(const Hash& hash);
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fusell::InodeNameManager* getNameMgr() const;
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private:
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const TreeEntry* getTreeEntry(PathComponentPiece name);
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// The EdenMount object that this inode belongs to.
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// We store this as a raw pointer since the TreeInode is part of the mount
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// point. The EdenMount should always exist longer than any inodes it
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// contains. (Storing a shared_ptr to the EdenMount would introduce circular
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// references which are undesirable.)
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EdenMount* const mount_{nullptr};
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std::unique_ptr<Tree> tree_;
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fuse_ino_t parent_;
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fuse_ino_t ino_;
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};
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}
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}
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