sapling/eden/fs/inodes/EdenDispatcher.h
Chad Austin c22dd7924d mark a bunch of folly::Future<folly::Unit> functions with FOLLY_NODISCARD
Summary:
To avoid bugs similar to the ones fixed in D7781691, mark a bunch of
folly::Future<folly::Unit> functions with FOLLY_NODISCARD.

Reviewed By: simpkins

Differential Revision: D7782224

fbshipit-source-id: 23ba42aa63011cc33e5a6e18d5bc6d00403a78d3
2018-04-26 21:00:25 -07:00

93 lines
2.9 KiB
C++

/*
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*/
#pragma once
#include "eden/fs/fuse/Dispatcher.h"
#include "eden/fs/inodes/InodePtr.h"
namespace facebook {
namespace eden {
class EdenMount;
class FileInode;
class InodeBase;
class InodeMap;
class TreeInode;
/**
* A FUSE request dispatcher for eden mount points.
*/
class EdenDispatcher : public Dispatcher {
public:
/*
* Create an EdenDispatcher.
* setRootInode() must be called before using this dispatcher.
*/
explicit EdenDispatcher(EdenMount* mount);
folly::Future<Attr> getattr(InodeNumber ino) override;
folly::Future<Attr> setattr(InodeNumber ino, const fuse_setattr_in& attr)
override;
folly::Future<std::shared_ptr<DirHandle>> opendir(InodeNumber ino, int flags)
override;
folly::Future<fuse_entry_out> lookup(
InodeNumber parent,
PathComponentPiece name) override;
void forget(InodeNumber ino, unsigned long nlookup) override;
folly::Future<std::shared_ptr<FileHandle>> open(InodeNumber ino, int flags)
override;
folly::Future<std::string> readlink(InodeNumber ino) override;
folly::Future<fuse_entry_out> mknod(
InodeNumber parent,
PathComponentPiece name,
mode_t mode,
dev_t rdev) override;
folly::Future<fuse_entry_out>
mkdir(InodeNumber parent, PathComponentPiece name, mode_t mode) override;
folly::Future<folly::Unit> unlink(InodeNumber parent, PathComponentPiece name)
override;
folly::Future<folly::Unit> rmdir(InodeNumber parent, PathComponentPiece name)
override;
folly::Future<fuse_entry_out> symlink(
InodeNumber parent,
PathComponentPiece name,
folly::StringPiece link) override;
folly::Future<folly::Unit> rename(
InodeNumber parent,
PathComponentPiece name,
InodeNumber newparent,
PathComponentPiece newname) override;
folly::Future<fuse_entry_out> link(
InodeNumber ino,
InodeNumber newparent,
PathComponentPiece newname) override;
folly::Future<Dispatcher::Create> create(
InodeNumber parent,
PathComponentPiece name,
mode_t mode,
int flags) override;
folly::Future<std::string> getxattr(InodeNumber ino, folly::StringPiece name)
override;
folly::Future<std::vector<std::string>> listxattr(InodeNumber ino) override;
private:
// The EdenMount that owns this EdenDispatcher.
EdenMount* const mount_;
// The EdenMount's InodeMap.
// We store this pointer purely for convenience. We need it on pretty much
// every FUSE request, and having it locally avoids having to dereference
// mount_ first.
InodeMap* const inodeMap_;
};
} // namespace eden
} // namespace facebook