Components/IFS/src/Arch/Host/include/IFS/Host/FileSystem.h

Go to the documentation of this file.

/****
 * FileSystem.h
 * IFS wrapper for Host (POSIX) file system
 *
 * Created on: 11 September 2018
 *
 * Copyright 2019 mikee47 <mike@sillyhouse.net>
 *
 * This file is part of the IFS Library
 *
 * This library is free software: you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation, version 3 or later.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this library.
 * If not, see <https://www.gnu.org/licenses/>.
 *
 ****/
 
#pragma once
 
#include <IFS/IFileSystem.h>
 
namespace IFS::Host
{
struct os_stat_t;
 
class FileSystem : public IFileSystem
{
public:
    FileSystem(const char* rootpath = nullptr) : rootpath(rootpath), mounted(!rootpath)
    {
    }
 
    ~FileSystem() override = default;
 
    int mount() override;
 
    // IFileSystem methods
    int getinfo(Info& info) override;
    String getErrorString(int err) override;
    int opendir(const char* path, DirHandle& dir) override;
    int rewinddir(DirHandle dir) override;
    int readdir(DirHandle dir, Stat& stat) override;
    int closedir(DirHandle dir) override;
    int mkdir(const char* path) override;
    int stat(const char* path, Stat* stat) override;
    int fstat(FileHandle file, Stat* stat) override;
    int fsetxattr(FileHandle file, AttributeTag tag, const void* data, size_t size) override;
    int fgetxattr(FileHandle file, AttributeTag tag, void* buffer, size_t size) override;
    int fenumxattr(FileHandle file, AttributeEnumCallback callback, void* buffer, size_t bufsize) override;
    int setxattr(const char* path, AttributeTag tag, const void* data, size_t size) override;
    int getxattr(const char* path, AttributeTag tag, void* buffer, size_t size) override;
    FileHandle open(const char* path, OpenFlags flags) override;
    int close(FileHandle file) override;
    int read(FileHandle file, void* data, size_t size) override;
    int write(FileHandle file, const void* data, size_t size) override;
    file_offset_t lseek(FileHandle file, file_offset_t offset, SeekOrigin origin) override;
    int eof(FileHandle file) override;
    file_offset_t tell(FileHandle file) override;
    int ftruncate(FileHandle file, file_size_t new_size) override;
    int flush(FileHandle file) override;
    int rename(const char* oldpath, const char* newpath) override;
    int remove(const char* path) override;
    int fremove(FileHandle) override
    {
        return Error::NotImplemented;
    }
    int format() override
    {
        return Error::ReadOnly;
    }
    int check() override
    {
        return Error::NotImplemented;
    }
 
private:
    String resolvePath(const char* path);
    void fillStat(const os_stat_t& s, Stat& stat);
    String rootpath;
    bool mounted;
};
 
} // namespace IFS::Host