96 lines
3.8 KiB
C++
96 lines
3.8 KiB
C++
#pragma once
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#ifndef MESSMER_CRYFS_FILESYSTEM_FSBLOBSTORE_DIRBLOB_H_
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#define MESSMER_CRYFS_FILESYSTEM_FSBLOBSTORE_DIRBLOB_H_
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#include <blockstore/utils/Key.h>
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#include <cpp-utils/macros.h>
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#include <fspp/fs_interface/Dir.h>
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#include "FsBlob.h"
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#include "utils/DirEntryList.h"
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#include <mutex>
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namespace cryfs {
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namespace fsblobstore {
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class FsBlobStore;
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class DirBlob final : public FsBlob {
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public:
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constexpr static off_t DIR_LSTAT_SIZE = 4096;
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static cpputils::unique_ref<DirBlob> InitializeEmptyDir(FsBlobStore *fsBlobStore, cpputils::unique_ref<blobstore::Blob> blob,
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std::function<off_t (const blockstore::Key&)> getLstatSize);
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DirBlob(FsBlobStore *fsBlobStore, cpputils::unique_ref<blobstore::Blob> blob, std::function<off_t (const blockstore::Key&)> getLstatSize);
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~DirBlob();
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off_t lstat_size() const override;
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void AppendChildrenTo(std::vector<fspp::Dir::Entry> *result) const;
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//TODO Test NumChildren()
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size_t NumChildren() const;
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boost::optional<const DirEntry&> GetChild(const std::string &name) const;
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boost::optional<const DirEntry&> GetChild(const blockstore::Key &key) const;
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void AddChildDir(const std::string &name, const blockstore::Key &blobKey, mode_t mode, uid_t uid,
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gid_t gid, timespec lastAccessTime, timespec lastModificationTime);
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void AddChildFile(const std::string &name, const blockstore::Key &blobKey, mode_t mode, uid_t uid,
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gid_t gid, timespec lastAccessTime, timespec lastModificationTime);
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void AddChildSymlink(const std::string &name, const blockstore::Key &blobKey, uid_t uid, gid_t gid, timespec lastAccessTime, timespec lastModificationTime);
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void AddOrOverwriteChild(const std::string &name, const blockstore::Key &blobKey, fspp::Dir::EntryType type,
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mode_t mode, uid_t uid, gid_t gid, timespec lastAccessTime, timespec lastModificationTime,
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std::function<void (const blockstore::Key &key)> onOverwritten);
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void RenameChild(const blockstore::Key &key, const std::string &newName, std::function<void (const blockstore::Key &key)> onOverwritten);
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void RemoveChild(const std::string &name);
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void RemoveChild(const blockstore::Key &key);
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void flush();
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void statChild(const blockstore::Key &key, struct ::stat *result) const;
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void statChildWithSizeAlreadySet(const blockstore::Key &key, struct ::stat *result) const;
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void updateAccessTimestampForChild(const blockstore::Key &key);
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void updateModificationTimestampForChild(const blockstore::Key &key);
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void chmodChild(const blockstore::Key &key, mode_t mode);
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void chownChild(const blockstore::Key &key, uid_t uid, gid_t gid);
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void utimensChild(const blockstore::Key &key, timespec lastAccessTime, timespec lastModificationTime);
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void setLstatSizeGetter(std::function<off_t(const blockstore::Key&)> getLstatSize);
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private:
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void _addChild(const std::string &name, const blockstore::Key &blobKey, fspp::Dir::EntryType type,
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mode_t mode, uid_t uid, gid_t gid, timespec lastAccessTime, timespec lastModificationTime);
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void _readEntriesFromBlob();
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void _writeEntriesToBlob();
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cpputils::unique_ref<blobstore::Blob> releaseBaseBlob() override;
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FsBlobStore *_fsBlobStore;
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std::function<off_t (const blockstore::Key&)> _getLstatSize;
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DirEntryList _entries;
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mutable std::mutex _mutex;
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bool _changed;
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DISALLOW_COPY_AND_ASSIGN(DirBlob);
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};
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}
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}
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#endif
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