mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-12-28 21:54:40 +03:00
82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Badge.h>
|
|
#include <AK/Error.h>
|
|
#include <AK/OwnPtr.h>
|
|
#include <AK/Types.h>
|
|
#include <Kernel/API/DeviceEvent.h>
|
|
#include <Kernel/API/TimePage.h>
|
|
#include <Kernel/Arch/RegisterState.h>
|
|
#include <Kernel/Devices/CharacterDevice.h>
|
|
#include <Kernel/Devices/ConsoleDevice.h>
|
|
#include <Kernel/Devices/Device.h>
|
|
#include <Kernel/Devices/DeviceControlDevice.h>
|
|
#include <Kernel/Devices/NullDevice.h>
|
|
#include <Kernel/Library/LockRefPtr.h>
|
|
#include <Kernel/UnixTypes.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class DeviceManagement {
|
|
|
|
public:
|
|
DeviceManagement();
|
|
static void initialize();
|
|
static DeviceManagement& the();
|
|
void attach_null_device(NullDevice const&);
|
|
|
|
void attach_device_control_device(DeviceControlDevice const&);
|
|
|
|
bool is_console_device_attached() const { return !m_console_device.is_null(); }
|
|
void attach_console_device(ConsoleDevice const&);
|
|
|
|
Optional<DeviceEvent> dequeue_top_device_event(Badge<DeviceControlDevice>);
|
|
|
|
void after_inserting_device(Badge<Device>, Device&);
|
|
void before_device_removal(Badge<Device>, Device&);
|
|
|
|
void for_each(Function<void(Device&)>);
|
|
ErrorOr<void> try_for_each(Function<ErrorOr<void>(Device&)>);
|
|
Device* get_device(MajorNumber major, MinorNumber minor);
|
|
|
|
NullDevice const& null_device() const;
|
|
NullDevice& null_device();
|
|
|
|
ConsoleDevice const& console_device() const;
|
|
ConsoleDevice& console_device();
|
|
|
|
template<typename DeviceType, typename... Args>
|
|
static inline ErrorOr<NonnullLockRefPtr<DeviceType>> try_create_device(Args&&... args)
|
|
requires(requires(Args... args) { DeviceType::try_create(args...); })
|
|
{
|
|
auto device = TRY(DeviceType::try_create(forward<Args>(args)...));
|
|
TRY(device->after_inserting());
|
|
return device;
|
|
}
|
|
|
|
template<typename DeviceType, typename... Args>
|
|
static inline ErrorOr<NonnullLockRefPtr<DeviceType>> try_create_device(Args&&... args)
|
|
{
|
|
auto device = TRY(adopt_nonnull_lock_ref_or_enomem(new (nothrow) DeviceType(forward<Args>(args)...)));
|
|
TRY(device->after_inserting());
|
|
return device;
|
|
}
|
|
|
|
private:
|
|
LockRefPtr<NullDevice> m_null_device;
|
|
LockRefPtr<ConsoleDevice> m_console_device;
|
|
LockRefPtr<DeviceControlDevice> m_device_control_device;
|
|
SpinlockProtected<HashMap<u64, Device*>, LockRank::None> m_devices {};
|
|
|
|
mutable Spinlock<LockRank::None> m_event_queue_lock {};
|
|
CircularQueue<DeviceEvent, 100> m_event_queue;
|
|
};
|
|
|
|
}
|