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ac7ce12123
This was a premature optimization from the early days of SerenityOS. The eternal heap was a simple bump pointer allocator over a static byte array. My original idea was to avoid heap fragmentation and improve data locality, but both ideas were rooted in cargo culting, not data. We would reserve 4 MiB at boot and only ended up using ~256 KiB, wasting the rest. This patch replaces all kmalloc_eternal() usage by regular kmalloc().
66 lines
1.8 KiB
C++
66 lines
1.8 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/Atomic.h>
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#include <AK/CircularQueue.h>
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#include <AK/Error.h>
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#include <AK/NonnullRefPtrVector.h>
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#include <AK/RefPtr.h>
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#include <AK/Time.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/Locking/Spinlock.h>
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#include <Kernel/UnixTypes.h>
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#include <LibKeyboard/CharacterMap.h>
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namespace Kernel {
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extern Atomic<bool> g_caps_lock_remapped_to_ctrl;
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class HIDDevice;
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class I8042Controller;
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class MouseDevice;
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class KeyboardDevice;
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class KeyboardClient;
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class HIDManagement {
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friend class KeyboardDevice;
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friend class MouseDevice;
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public:
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HIDManagement();
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static void initialize();
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static HIDManagement& the();
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void enumerate();
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const String& keymap_name() const { return m_character_map.character_map_name(); }
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const Keyboard::CharacterMapData& character_maps() const { return m_character_map.character_map_data(); }
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const Keyboard::CharacterMap& character_map() const { return m_character_map; }
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void set_client(KeyboardClient* client) { m_client = client; }
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void set_maps(const Keyboard::CharacterMapData& character_map, const String& character_map_name);
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private:
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size_t generate_minor_device_number_for_mouse();
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size_t generate_minor_device_number_for_keyboard();
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size_t m_mouse_minor_number { 0 };
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size_t m_keyboard_minor_number { 0 };
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Keyboard::CharacterMap m_character_map;
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KeyboardClient* m_client { nullptr };
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RefPtr<I8042Controller> m_i8042_controller;
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NonnullRefPtrVector<HIDDevice> m_hid_devices;
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};
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class KeyboardClient {
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public:
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virtual ~KeyboardClient() = default;
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virtual void on_key_pressed(KeyEvent) = 0;
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};
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}
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