mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-24 05:11:14 +00:00
57 lines
2.2 KiB
C++
57 lines
2.2 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 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 <stratosphere.hpp>
|
|
|
|
namespace ams::fssystem {
|
|
|
|
class HierarchicalSha256Storage : public ::ams::fs::IStorage, public ::ams::fs::impl::Newable {
|
|
NON_COPYABLE(HierarchicalSha256Storage);
|
|
NON_MOVEABLE(HierarchicalSha256Storage);
|
|
public:
|
|
static constexpr s32 LayerCount = 3;
|
|
static constexpr size_t HashSize = crypto::Sha256Generator::HashSize;
|
|
private:
|
|
os::Mutex mutex;
|
|
IStorage *base_storage;
|
|
s64 base_storage_size;
|
|
char *hash_buffer;
|
|
size_t hash_buffer_size;
|
|
s32 hash_target_block_size;
|
|
s32 log_size_ratio;
|
|
public:
|
|
HierarchicalSha256Storage() : mutex(false) { /* ... */ }
|
|
|
|
Result Initialize(IStorage **base_storages, s32 layer_count, size_t htbs, void *hash_buf, size_t hash_buf_size);
|
|
|
|
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 OperateRange(void *dst, size_t dst_size, fs::OperationId op_id, s64 offset, s64 size, const void *src, size_t src_size) override;
|
|
|
|
virtual Result GetSize(s64 *out) override {
|
|
return this->base_storage->GetSize(out);
|
|
}
|
|
|
|
virtual Result Flush() override {
|
|
return ResultSuccess();
|
|
}
|
|
|
|
virtual Result SetSize(s64 size) override {
|
|
return fs::ResultUnsupportedOperationInHierarchicalSha256StorageA();
|
|
}
|
|
};
|
|
|
|
}
|