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// 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
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