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https://github.com/RGBCube/serenity
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79fa9765ca
We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace! This was a slightly tedious refactoring that took a long time, so it's not unlikely that some bugs crept in. Nevertheless, it does pass basic functionality testing, and it's just real nice to finally see the same pattern in all contexts. :^)
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
/*
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* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
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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/CircularQueue.h>
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#include <AK/DoublyLinkedList.h>
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#include <AK/Types.h>
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#include <Kernel/API/KeyCode.h>
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#include <Kernel/API/MousePacket.h>
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#include <Kernel/Devices/CharacterDevice.h>
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#include <Kernel/Devices/HID/HIDDevice.h>
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#include <Kernel/Interrupts/IRQHandler.h>
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#include <Kernel/Random.h>
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namespace Kernel {
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class MouseDevice : public HIDDevice {
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public:
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virtual ~MouseDevice() override;
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// ^CharacterDevice
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virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
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virtual bool can_read(const OpenFileDescription&, size_t) const override;
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virtual ErrorOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override { return EINVAL; }
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virtual bool can_write(const OpenFileDescription&, size_t) const override { return true; }
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// ^HIDDevice
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virtual Type instrument_type() const override { return Type::Mouse; }
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protected:
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MouseDevice();
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// ^CharacterDevice
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virtual StringView class_name() const override { return "MouseDevice"sv; }
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mutable Spinlock m_queue_lock;
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CircularQueue<MousePacket, 100> m_queue;
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};
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}
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