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951eb290b1
Summary: Unify how inode metadata is modified across inode types. This allows changing the permission bits on a directory. Reviewed By: simpkins Differential Revision: D7767254 fbshipit-source-id: 35e9cf652c84c7d8680cc22dec7942e94e9f5af1
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/*
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* Copyright (c) 2018-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 <sys/stat.h>
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#include "eden/fs/inodes/InodeTimestamps.h"
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struct fuse_setattr_in;
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struct stat;
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namespace facebook {
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namespace eden {
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/**
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* Fixed-size structure of per-inode bits that should be persisted across runs.
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*
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* Warning: This data structure is serialized directly to disk via InodeTable.
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* Do not change the order, sizes, or meanings of the fields. Instead, rename
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* this struct, create a new InodeMetadata struct with the next VERSION value,
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* add an explicit constructor from the old version, and add the old version to
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* the InodeMetadataTable typedef in InodeTable.h.
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*/
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struct InodeMetadata {
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enum { VERSION = 0 };
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InodeMetadata() = default;
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explicit InodeMetadata(
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mode_t m,
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uid_t u,
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gid_t g,
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const InodeTimestamps& ts) noexcept
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: mode{m}, uid{u}, gid{g}, timestamps{ts} {}
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mode_t mode{0};
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uid_t uid{0};
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gid_t gid{0};
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InodeTimestamps timestamps;
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void updateFromAttr(const Clock& clock, const fuse_setattr_in& attr);
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void applyToStat(struct stat& st) const;
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// Other potential things to include:
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// nlink_t nlinks;
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// dev_t rdev;
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// creation time
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};
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} // namespace eden
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} // namespace facebook
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