diff options
Diffstat (limited to 'src/core/file_sys/fssystem/fssystem_memory_resource_buffer_hold_storage.h')
-rw-r--r-- | src/core/file_sys/fssystem/fssystem_memory_resource_buffer_hold_storage.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/core/file_sys/fssystem/fssystem_memory_resource_buffer_hold_storage.h b/src/core/file_sys/fssystem/fssystem_memory_resource_buffer_hold_storage.h new file mode 100644 index 000000000..c07a127fb --- /dev/null +++ b/src/core/file_sys/fssystem/fssystem_memory_resource_buffer_hold_storage.h @@ -0,0 +1,61 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include "core/file_sys/fssystem/fs_i_storage.h" + +namespace FileSys { + +class MemoryResourceBufferHoldStorage : public IStorage { + YUZU_NON_COPYABLE(MemoryResourceBufferHoldStorage); + YUZU_NON_MOVEABLE(MemoryResourceBufferHoldStorage); + +public: + MemoryResourceBufferHoldStorage(VirtualFile storage, size_t buffer_size) + : m_storage(std::move(storage)), m_buffer(::operator new(buffer_size)), + m_buffer_size(buffer_size) {} + + virtual ~MemoryResourceBufferHoldStorage() { + // If we have a buffer, deallocate it. + if (m_buffer != nullptr) { + ::operator delete(m_buffer); + } + } + + bool IsValid() const { + return m_buffer != nullptr; + } + void* GetBuffer() const { + return m_buffer; + } + +public: + virtual size_t Read(u8* buffer, size_t size, size_t offset) const override { + // Check pre-conditions. + ASSERT(m_storage != nullptr); + + return m_storage->Read(buffer, size, offset); + } + + virtual size_t GetSize() const override { + // Check pre-conditions. + ASSERT(m_storage != nullptr); + + return m_storage->GetSize(); + } + + virtual size_t Write(const u8* buffer, size_t size, size_t offset) override { + // Check pre-conditions. + ASSERT(m_storage != nullptr); + + return m_storage->Write(buffer, size, offset); + } + +private: + VirtualFile m_storage; + void* m_buffer; + size_t m_buffer_size; +}; + +} // namespace FileSys |