ladybird/Kernel/Devices/HID/HIDManagement.h
Lenny Maiorani 5751327195 Kernel: static vs non-static constexpr variables
Problem:
- `static` variables consume memory and sometimes are less
  optimizable.
- `static const` variables can be `constexpr`, usually.
- `static` function-local variables require an initialization check
  every time the function is run.

Solution:
- If a global `static` variable is only used in a single function then
  move it into the function and make it non-`static` and `constexpr`.
- Make all global `static` variables `constexpr` instead of `const`.
- Change function-local `static const[expr]` variables to be just
  `constexpr`.
2021-05-19 21:21:47 +01:00

67 lines
1.8 KiB
C++

/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Atomic.h>
#include <AK/CircularQueue.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/RefPtr.h>
#include <AK/Time.h>
#include <AK/Types.h>
#include <Kernel/API/KeyCode.h>
#include <Kernel/API/MousePacket.h>
#include <Kernel/KResult.h>
#include <Kernel/SpinLock.h>
#include <Kernel/UnixTypes.h>
#include <LibKeyboard/CharacterMap.h>
namespace Kernel {
extern Atomic<bool> g_caps_lock_remapped_to_ctrl;
class HIDDevice;
class I8042Controller;
class MouseDevice;
class KeyboardDevice;
class KeyboardClient;
class HIDManagement {
friend class KeyboardDevice;
friend class MouseDevice;
AK_MAKE_ETERNAL;
public:
HIDManagement();
static void initialize();
static HIDManagement& the();
void enumerate();
const String& keymap_name() const { return m_character_map.character_map_name(); }
const Keyboard::CharacterMapData& character_maps() const { return m_character_map.character_map_data(); }
const Keyboard::CharacterMap& character_map() const { return m_character_map; }
void set_client(KeyboardClient* client) { m_client = client; }
void set_maps(const Keyboard::CharacterMapData& character_map, const String& character_map_name);
private:
size_t generate_minor_device_number_for_mouse();
size_t generate_minor_device_number_for_keyboard();
size_t m_mouse_minor_number { 0 };
size_t m_keyboard_minor_number { 0 };
Keyboard::CharacterMap m_character_map;
KeyboardClient* m_client { nullptr };
RefPtr<I8042Controller> m_i8042_controller;
NonnullRefPtrVector<HIDDevice> m_hid_devices;
};
class KeyboardClient {
public:
virtual ~KeyboardClient() = default;
virtual void on_key_pressed(KeyEvent) = 0;
};
}