mirror of
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. :^)
69 lines
1.9 KiB
C++
69 lines
1.9 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/Badge.h>
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#include <AK/Error.h>
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#include <AK/NonnullRefPtrVector.h>
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#include <AK/OwnPtr.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/TimePage.h>
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#include <Kernel/Arch/RegisterState.h>
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#include <Kernel/Devices/ConsoleDevice.h>
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#include <Kernel/Devices/Device.h>
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#include <Kernel/Devices/NullDevice.h>
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#include <Kernel/Devices/SB16.h>
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#include <Kernel/UnixTypes.h>
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namespace Kernel {
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class DeviceManagement {
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AK_MAKE_ETERNAL;
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public:
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DeviceManagement();
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static void initialize();
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static DeviceManagement& the();
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void attach_null_device(NullDevice const&);
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bool is_console_device_attached() const { return !m_console_device.is_null(); }
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void attach_console_device(ConsoleDevice const&);
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// FIXME: Once we have a singleton for managing many sound cards, remove this from here
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void attach_sb16_device(SB16 const&);
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void after_inserting_device(Badge<Device>, Device&);
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void before_device_removal(Badge<Device>, Device&);
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void for_each(Function<void(Device&)>);
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Device* get_device(unsigned major, unsigned minor);
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NullDevice const& null_device() const;
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NullDevice& null_device();
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ConsoleDevice const& console_device() const;
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ConsoleDevice& console_device();
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template<typename DeviceType, typename... Args>
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static inline ErrorOr<NonnullRefPtr<DeviceType>> try_create_device(Args&&... args)
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{
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auto device = TRY(adopt_nonnull_ref_or_enomem(new DeviceType(forward<Args>(args)...)));
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device->after_inserting();
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return device;
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}
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private:
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RefPtr<NullDevice> m_null_device;
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RefPtr<ConsoleDevice> m_console_device;
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// FIXME: Once we have a singleton for managing many sound cards, remove this from here
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RefPtr<SB16> m_sb16_device;
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MutexProtected<HashMap<u32, Device*>> m_devices;
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};
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}
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