libcryfs/impl/FilesystemImpl.h
2015-12-07 12:13:23 +01:00

102 lines
4.2 KiB
C++

#pragma once
#ifndef MESSMER_FSPP_IMPL_FILESYSTEMIMPL_H_
#define MESSMER_FSPP_IMPL_FILESYSTEMIMPL_H_
#include "FuseOpenFileList.h"
#include "../fuse/Filesystem.h"
#include <messmer/cpp-utils/pointer/unique_ref.h>
#include <atomic>
//Remove this line if you don't want profiling
//#define FSPP_PROFILE 1
namespace fspp {
class Node;
class File;
class Symlink;
class OpenFile;
class FilesystemImpl final: public fuse::Filesystem {
public:
explicit FilesystemImpl(Device *device);
virtual ~FilesystemImpl();
int openFile(const boost::filesystem::path &path, int flags) override;
void flush(int descriptor) override;
void closeFile(int descriptor) override;
void lstat(const boost::filesystem::path &path, struct ::stat *stbuf) override;
void fstat(int descriptor, struct ::stat *stbuf) override;
void chmod(const boost::filesystem::path &path, mode_t mode) override;
void chown(const boost::filesystem::path &path, uid_t uid, gid_t gid) override;
void truncate(const boost::filesystem::path &path, off_t size) override;
void ftruncate(int descriptor, off_t size) override;
size_t read(int descriptor, void *buf, size_t count, off_t offset) override;
void write(int descriptor, const void *buf, size_t count, off_t offset) override;
void fsync(int descriptor) override;
void fdatasync(int descriptor) override;
void access(const boost::filesystem::path &path, int mask) override;
int createAndOpenFile(const boost::filesystem::path &path, mode_t mode, uid_t uid, gid_t gid) override;
void mkdir(const boost::filesystem::path &path, mode_t mode, uid_t uid, gid_t gid) override;
void rmdir(const boost::filesystem::path &path) override;
void unlink(const boost::filesystem::path &path) override;
void rename(const boost::filesystem::path &from, const boost::filesystem::path &to) override;
cpputils::unique_ref<std::vector<Dir::Entry>> readDir(const boost::filesystem::path &path) override;
void utimens(const boost::filesystem::path &path, const timespec times[2]) override;
void statfs(const boost::filesystem::path &path, struct statvfs *fsstat) override;
void createSymlink(const boost::filesystem::path &to, const boost::filesystem::path &from, uid_t uid, gid_t gid) override;
void readSymlink(const boost::filesystem::path &path, char *buf, size_t size) override;
private:
cpputils::unique_ref<File> LoadFile(const boost::filesystem::path &path);
cpputils::unique_ref<Dir> LoadDir(const boost::filesystem::path &path);
cpputils::unique_ref<Symlink> LoadSymlink(const boost::filesystem::path &path);
int openFile(const File &file, int flags);
#ifdef FSPP_PROFILE
std::atomic<uint64_t> _loadFileNanosec;
std::atomic<uint64_t> _loadDirNanosec;
std::atomic<uint64_t> _loadSymlinkNanosec;
std::atomic<uint64_t> _openFileNanosec;
std::atomic<uint64_t> _flushNanosec;
std::atomic<uint64_t> _closeFileNanosec;
std::atomic<uint64_t> _lstatNanosec;
std::atomic<uint64_t> _fstatNanosec;
std::atomic<uint64_t> _chmodNanosec;
std::atomic<uint64_t> _chownNanosec;
std::atomic<uint64_t> _truncateNanosec;
std::atomic<uint64_t> _ftruncateNanosec;
std::atomic<uint64_t> _readNanosec;
std::atomic<uint64_t> _writeNanosec;
std::atomic<uint64_t> _fsyncNanosec;
std::atomic<uint64_t> _fdatasyncNanosec;
std::atomic<uint64_t> _accessNanosec;
std::atomic<uint64_t> _createAndOpenFileNanosec;
std::atomic<uint64_t> _createAndOpenFileNanosec_withoutLoading;
std::atomic<uint64_t> _mkdirNanosec;
std::atomic<uint64_t> _mkdirNanosec_withoutLoading;
std::atomic<uint64_t> _rmdirNanosec;
std::atomic<uint64_t> _rmdirNanosec_withoutLoading;
std::atomic<uint64_t> _unlinkNanosec;
std::atomic<uint64_t> _unlinkNanosec_withoutLoading;
std::atomic<uint64_t> _renameNanosec;
std::atomic<uint64_t> _readDirNanosec;
std::atomic<uint64_t> _readDirNanosec_withoutLoading;
std::atomic<uint64_t> _utimensNanosec;
std::atomic<uint64_t> _statfsNanosec;
std::atomic<uint64_t> _createSymlinkNanosec;
std::atomic<uint64_t> _createSymlinkNanosec_withoutLoading;
std::atomic<uint64_t> _readSymlinkNanosec;
std::atomic<uint64_t> _readSymlinkNanosec_withoutLoading;
#endif
Device *_device;
FuseOpenFileList _open_files;
DISALLOW_COPY_AND_ASSIGN(FilesystemImpl);
};
}
#endif