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ams_mitm: implement layeredfs

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This commit is contained in:
Michael Scire
2019-12-04 06:53:52 -08:00
committed by SciresM
parent ad64cb5212
commit 733f2b3cdd
16 changed files with 1282 additions and 7 deletions
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1
stratosphere/libstratosphere/include/stratosphere/fs.hpp
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@@ -22,4 +22,5 @@
#include "fs/fs_remote_filesystem.hpp"
#include "fs/fs_istorage.hpp"
#include "fs/fs_remote_storage.hpp"
#include "fs/fs_file_storage.hpp"
#include "fs/fs_query_range.hpp"

56
stratosphere/libstratosphere/include/stratosphere/fs/fs_file_storage.hpp Normal file
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@@ -0,0 +1,56 @@
/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "fs_common.hpp"
#include "fs_istorage.hpp"
#include "fsa/fs_ifile.hpp"
namespace ams::fs {
class FileStorage : public IStorage {
private:
static constexpr s64 InvalidSize = -1;
private:
std::unique_ptr<fsa::IFile> unique_file;
std::shared_ptr<fsa::IFile> shared_file;
fsa::IFile *base_file;
s64 size;
public:
FileStorage(fsa::IFile *f) : unique_file(f), size(InvalidSize) {
this->base_file = this->unique_file.get();
}
FileStorage(std::unique_ptr<fsa::IFile> f) : unique_file(std::move(f)), size(InvalidSize) {
this->base_file = this->unique_file.get();
}
FileStorage(std::shared_ptr<fsa::IFile> f) : shared_file(f), size(InvalidSize) {
this->base_file = this->shared_file.get();
}
virtual ~FileStorage() { /* ... */ }
protected:
Result UpdateSize();
public:
virtual Result Read(s64 offset, void *buffer, size_t size) override;
virtual Result Write(s64 offset, const void *buffer, size_t size) override;
virtual Result Flush() override;
virtual Result GetSize(s64 *out_size) override;
virtual Result SetSize(s64 size) override;
virtual Result OperateRange(void *dst, size_t dst_size, OperationId op_id, s64 offset, s64 size, const void *src, size_t src_size) override;
};
}