citra/src/core/file_sys/disk_archive.h

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// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
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#include <cstddef>
#include <memory>
#include <string>
#include <vector>
#include "common/common_types.h"
#include "common/file_util.h"
#include "core/file_sys/archive_backend.h"
#include "core/file_sys/directory_backend.h"
#include "core/file_sys/file_backend.h"
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#include "core/hle/result.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
class DiskFile : public FileBackend {
public:
DiskFile(FileUtil::IOFile&& file_, const Mode& mode_,
std::unique_ptr<DelayGenerator> delay_generator_)
: file(new FileUtil::IOFile(std::move(file_))) {
delay_generator = std::move(delay_generator_);
mode.hex = mode_.hex;
}
ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) override;
u64 GetSize() const override;
bool SetSize(u64 size) const override;
bool Close() const override;
void Flush() const override {
file->Flush();
}
protected:
Mode mode;
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std::unique_ptr<FileUtil::IOFile> file;
};
class DiskDirectory : public DirectoryBackend {
public:
explicit DiskDirectory(const std::string& path);
~DiskDirectory() override {
Close();
}
u32 Read(u32 count, Entry* entries) override;
bool Close() const override {
return true;
}
protected:
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