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This folder in the SysFS code represents everything related to /sys/dev, which is a directory meant to be a convenient interface to track all IDs of all block and character devices (ID = major:minor numbers).
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
/*
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* Copyright (c) 2022, 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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#include <Kernel/FileSystem/SysFS/Registry.h>
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#include <Kernel/FileSystem/SysFS/RootDirectory.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/Bus/Directory.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/Directory.h>
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#include <Kernel/Sections.h>
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namespace Kernel {
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NonnullRefPtr<SysFSRootDirectory> SysFSRootDirectory::create()
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{
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return adopt_ref(*new (nothrow) SysFSRootDirectory);
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}
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ErrorOr<void> SysFSRootDirectory::traverse_as_directory(FileSystemID fsid, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)> callback) const
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{
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MutexLocker locker(SysFSComponentRegistry::the().get_lock());
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TRY(callback({ "."sv, { fsid, component_index() }, 0 }));
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TRY(callback({ ".."sv, { fsid, 0 }, 0 }));
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for (auto const& component : m_components) {
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InodeIdentifier identifier = { fsid, component.component_index() };
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TRY(callback({ component.name(), identifier, 0 }));
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}
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return {};
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}
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SysFSRootDirectory::SysFSRootDirectory()
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{
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auto buses_directory = SysFSBusDirectory::must_create(*this);
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auto device_identifiers_directory = SysFSDeviceIdentifiersDirectory::must_create(*this);
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m_components.append(buses_directory);
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m_components.append(device_identifiers_directory);
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m_buses_directory = buses_directory;
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}
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}
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