urbackup_backend/Interface/BackupFileSystem.h
2021-05-26 17:05:43 +02:00

106 lines
2.9 KiB
C++

#pragma once
#include "Object.h"
#include "File.h"
#include "../urbackupcommon/os_functions.h"
#ifdef HAS_ASYNC
#include "../clouddrive/fuse_io_context.h"
#endif
class IBackupFileSystem : public IObject
{
public:
virtual bool hasError() = 0;
virtual IFsFile* openFile(const std::string& path, int mode) = 0;
#ifdef HAS_ASYNC
virtual fuse_io_context::io_uring_task<IFsFile*> openFileAsync(fuse_io_context& io, const std::string& path, int mode) = 0;
virtual fuse_io_context::io_uring_task<int> getFileTypeAsync(fuse_io_context& io, const std::string& path) = 0;
virtual void closeAsync(fuse_io_context& io, IFsFile* fd) = 0;
virtual fuse_io_context::io_uring_task<bool> deleteFileAsync(fuse_io_context& io, const std::string& path) = 0;
#endif
virtual bool reflinkFile(const std::string& source, const std::string& dest) = 0;
virtual bool createDir(const std::string& path) = 0;
virtual bool deleteFile(const std::string& path) = 0;
virtual int getFileType(const std::string& path) = 0;
virtual bool sync(const std::string& path) = 0;
virtual std::vector<SFile> listFiles(const std::string& path) = 0;
virtual bool createSubvol(const std::string& path) = 0;
virtual bool createSnapshot(const std::string& src_path,
const std::string& dest_path) = 0;
virtual bool deleteSubvol(const std::string& path) = 0;
virtual bool rename(const std::string& src_name,
const std::string& dest_name) = 0;
virtual bool removeDirRecursive(const std::string& path) = 0;
virtual bool directoryExists(const std::string& path) = 0;
virtual bool linkSymbolic(const std::string& target, const std::string& lname) = 0;
virtual bool copyFile(const std::string& src, const std::string& dst,
bool flush=false, std::string* error_str=nullptr) = 0;
virtual int64 totalSpace() = 0;
virtual int64 freeSpace() = 0;
virtual int64 freeMetadataSpace() = 0;
virtual int64 unallocatedSpace() = 0;
virtual bool forceAllocMetadata() = 0;
virtual bool balance(int usage, size_t limit, bool metadata, bool& enospc, size_t& relocated) = 0;
virtual std::string fileSep() = 0;
virtual std::string filePath(IFile* f) = 0;
virtual bool getXAttr(const std::string& path, const std::string& key, std::string& value) = 0;
virtual bool setXAttr(const std::string& path, const std::string& key, const std::string& val) = 0;
virtual std::string getName() = 0;
virtual IFile* getBackingFile() = 0;
virtual std::string lastError() = 0;
struct SChunk
{
SChunk()
: offset(-1), len(0), metadata(false) {}
SChunk(int64 offset, int64 len, bool metadata)
: offset(offset), len(len), metadata(metadata) {}
bool operator<(const SChunk& other) const
{
return offset < other.offset;
}
int64 offset;
int64 len;
int metadata;
};
virtual std::vector<SChunk> getChunks() = 0;
};