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a29d465ee8
Summary: With Facebook having been renamed Meta Platforms, we need to change the license headers. Reviewed By: fanzeyi Differential Revision: D33407812 fbshipit-source-id: b11bfbbf13a48873f0cea75f212cc7b07a68fb2e
55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and 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 <sys/stat.h>
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#include <memory>
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#include "eden/fs/utils/DirType.h"
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namespace facebook::eden {
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/**
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* Helper for populating directory listings.
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*/
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class FuseDirList {
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std::unique_ptr<char[]> buf_;
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char* end_;
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char* cur_;
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public:
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struct ExtractedEntry {
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std::string name;
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ino_t inode;
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dtype_t type;
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off_t offset;
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};
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explicit FuseDirList(size_t maxSize);
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FuseDirList(const FuseDirList&) = delete;
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FuseDirList& operator=(const FuseDirList&) = delete;
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FuseDirList(FuseDirList&&) = default;
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FuseDirList& operator=(FuseDirList&&) = default;
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/**
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* Add a new dirent to the list.
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* Returns true on success or false if the list is full.
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*/
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bool add(folly::StringPiece name, ino_t inode, dtype_t type, off_t off);
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folly::StringPiece getBuf() const;
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/**
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* Helper function that parses an accumulated buffer back into its constituent
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* parts.
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*/
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std::vector<ExtractedEntry> extract() const;
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};
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} // namespace facebook::eden
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