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44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <mutex>
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#include "core/file_sys/errors.h"
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#include "core/file_sys/fssystem/fs_i_storage.h"
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#include "core/file_sys/vfs/vfs.h"
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namespace FileSys {
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class HierarchicalSha256Storage : public IReadOnlyStorage {
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YUZU_NON_COPYABLE(HierarchicalSha256Storage);
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YUZU_NON_MOVEABLE(HierarchicalSha256Storage);
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public:
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static constexpr s32 LayerCount = 3;
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static constexpr size_t HashSize = 256 / 8;
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public:
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HierarchicalSha256Storage() : m_mutex() {}
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Result Initialize(VirtualFile* base_storages, s32 layer_count, size_t htbs, void* hash_buf,
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size_t hash_buf_size);
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virtual size_t GetSize() const override {
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return m_base_storage->GetSize();
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}
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virtual size_t Read(u8* buffer, size_t length, size_t offset) const override;
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private:
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VirtualFile m_base_storage;
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s64 m_base_storage_size;
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char* m_hash_buffer;
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size_t m_hash_buffer_size;
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s32 m_hash_target_block_size;
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s32 m_log_size_ratio;
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std::mutex m_mutex;
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};
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} // namespace FileSys
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