mirror of
https://github.com/RGBCube/serenity
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8e90a4fd1c
This leads to a bad pattern where anyone could create an RNG or a Console object. Instead, let's just use the common pattern of a static method to instantiate a new object and return it wrapped by a NonnullRefPtr.
37 lines
919 B
C++
37 lines
919 B
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefCounted.h>
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#include <Kernel/Bus/VirtIO/Device.h>
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#include <Kernel/Devices/CharacterDevice.h>
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#include <Kernel/Random.h>
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namespace Kernel::VirtIO {
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#define REQUESTQ 0
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class RNG final
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: public RefCounted<RNG>
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, public VirtIO::Device {
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public:
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static NonnullRefPtr<RNG> must_create(PCI::Address address);
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virtual StringView purpose() const override { return class_name(); }
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virtual ~RNG() override;
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private:
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virtual StringView class_name() const override { return "VirtIOConsole"; }
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explicit RNG(PCI::Address);
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virtual bool handle_device_config_change() override;
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virtual void handle_queue_update(u16 queue_index) override;
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void request_entropy_from_host();
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OwnPtr<Memory::Region> m_entropy_buffer;
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EntropySource m_entropy_source;
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};
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}
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