forked from suyu/suyu
102 lines
3 KiB
C
102 lines
3 KiB
C
|
// Copyright 2014 Citra Emulator Project
|
||
|
|
// Licensed under GPLv2
|
||
|
|
// Refer to the license.txt file included.
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include "common/common_types.h"
|
||
|
|
|
||
|
|
#include "core/file_sys/archive_backend.h"
|
||
|
|
#include "core/loader/loader.h"
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// FileSys namespace
|
||
|
|
|
||
|
|
namespace FileSys {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Helper which implements a backend accessing the host machine's filesystem.
|
||
|
|
* This should be subclassed by concrete archive types, which will provide the
|
||
|
|
* base directory on the host filesystem and override any required functionality.
|
||
|
|
*/
|
||
|
|
class DiskArchive : public ArchiveBackend {
|
||
|
|
public:
|
||
|
|
DiskArchive(const std::string& mount_point_) : mount_point(mount_point_) {}
|
||
|
|
|
||
|
|
virtual std::string GetName() const = 0;
|
||
|
|
std::unique_ptr<FileBackend> OpenFile(const Path& path, const Mode mode) const override;
|
||
|
|
bool DeleteFile(const FileSys::Path& path) const override;
|
||
|
|
bool RenameFile(const FileSys::Path& src_path, const FileSys::Path& dest_path) const override;
|
||
|
|
bool DeleteDirectory(const FileSys::Path& path) const override;
|
||
|
|
bool CreateDirectory(const Path& path) const override;
|
||
|
|
bool RenameDirectory(const FileSys::Path& src_path, const FileSys::Path& dest_path) const override;
|
||
|
|
std::unique_ptr<DirectoryBackend> OpenDirectory(const Path& path) const override;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Getter for the path used for this Archive
|
||
|
|
* @return Mount point of that passthrough archive
|
||
|
|
*/
|
||
|
|
const std::string& GetMountPoint() const {
|
||
|
|
return mount_point;
|
||
|
|
}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
std::string mount_point;
|
||
|
|
};
|
||
|
|
|
||
|
|
class DiskFile : public FileBackend {
|
||
|
|
public:
|
||
|
|
DiskFile();
|
||
|
|
DiskFile(const DiskArchive* archive, const Path& path, const Mode mode);
|
||
|
|
|
||
|
|
~DiskFile() override {
|
||
|
|
Close();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Open() override;
|
||
|
|
size_t Read(const u64 offset, const u32 length, u8* buffer) const override;
|
||
|
|
size_t Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const override;
|
||
|
|
size_t GetSize() const override;
|
||
|
|
bool SetSize(const u64 size) const override;
|
||
|
|
bool Close() const override;
|
||
|
|
|
||
|
|
void Flush() const override {
|
||
|
|
file->Flush();
|
||
|
|
}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
const DiskArchive* archive;
|
||
|
|
std::string path;
|
||
|
|
Mode mode;
|
||
|
|
FileUtil::IOFile* file;
|
||
|
|
};
|
||
|
|
|
||
|
|
class DiskDirectory : public DirectoryBackend {
|
||
|
|
public:
|
||
|
|
DiskDirectory();
|
||
|
|
DiskDirectory(const DiskArchive* archive, const Path& path);
|
||
|
|
|
||
|
|
~DiskDirectory() override {
|
||
|
|
Close();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Open() override;
|
||
|
|
u32 Read(const u32 count, Entry* entries) override;
|
||
|
|
|
||
|
|
bool Close() const override {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
const DiskArchive* archive;
|
||
|
|
std::string path;
|
||
|
|
u32 total_entries_in_directory;
|
||
|
|
FileUtil::FSTEntry directory;
|
||
|
|
|
||
|
|
// We need to remember the last entry we returned, so a subsequent call to Read will continue
|
||
|
|
// from the next one. This iterator will always point to the next unread entry.
|
||
|
|
std::vector<FileUtil::FSTEntry>::iterator children_iterator;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace FileSys
|