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Diffstat (limited to 'src/core/file_sys/fssystem/fssystem_hierarchical_sha256_storage.h')
-rw-r--r-- | src/core/file_sys/fssystem/fssystem_hierarchical_sha256_storage.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/core/file_sys/fssystem/fssystem_hierarchical_sha256_storage.h b/src/core/file_sys/fssystem/fssystem_hierarchical_sha256_storage.h new file mode 100644 index 000000000..18df400af --- /dev/null +++ b/src/core/file_sys/fssystem/fssystem_hierarchical_sha256_storage.h @@ -0,0 +1,44 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include <mutex> + +#include "core/file_sys/errors.h" +#include "core/file_sys/fssystem/fs_i_storage.h" +#include "core/file_sys/vfs.h" + +namespace FileSys { + +class HierarchicalSha256Storage : public IReadOnlyStorage { + YUZU_NON_COPYABLE(HierarchicalSha256Storage); + YUZU_NON_MOVEABLE(HierarchicalSha256Storage); + +public: + static constexpr s32 LayerCount = 3; + static constexpr size_t HashSize = 256 / 8; + +public: + HierarchicalSha256Storage() : m_mutex() {} + + Result Initialize(VirtualFile* base_storages, s32 layer_count, size_t htbs, void* hash_buf, + size_t hash_buf_size); + + virtual size_t GetSize() const override { + return m_base_storage->GetSize(); + } + + virtual size_t Read(u8* buffer, size_t length, size_t offset) const override; + +private: + VirtualFile m_base_storage; + s64 m_base_storage_size; + char* m_hash_buffer; + size_t m_hash_buffer_size; + s32 m_hash_target_block_size; + s32 m_log_size_ratio; + std::mutex m_mutex; +}; + +} // namespace FileSys |