6733f19b3c
Instead, let the /sys/dev/block and /sys/dev/char directories to handle the registering part of SysFSDeviceComponents by themselves.
57 lines
1.9 KiB
C++
57 lines
1.9 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/Subsystems/DeviceIdentifiers/CharacterDevicesDirectory.h>
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#include <Kernel/Sections.h>
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namespace Kernel {
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static SysFSCharacterDevicesDirectory* s_the { nullptr };
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NonnullRefPtr<SysFSCharacterDevicesDirectory> SysFSCharacterDevicesDirectory::must_create(SysFSDeviceIdentifiersDirectory const& devices_directory)
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{
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return adopt_ref_if_nonnull(new SysFSCharacterDevicesDirectory(devices_directory)).release_nonnull();
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}
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SysFSCharacterDevicesDirectory::SysFSCharacterDevicesDirectory(SysFSDeviceIdentifiersDirectory const& devices_directory)
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: SysFSDirectory(devices_directory)
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{
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s_the = this;
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}
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ErrorOr<void> SysFSCharacterDevicesDirectory::traverse_as_directory(FileSystemID fsid, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)> callback) const
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{
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VERIFY(m_parent_directory);
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TRY(callback({ "."sv, { fsid, component_index() }, 0 }));
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TRY(callback({ ".."sv, { fsid, m_parent_directory->component_index() }, 0 }));
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return m_devices_list.with([&](auto& list) -> ErrorOr<void> {
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for (auto& exposed_device : list) {
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VERIFY(!exposed_device.is_block_device());
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TRY(callback({ exposed_device.name(), { fsid, exposed_device.component_index() }, 0 }));
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}
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return {};
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});
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}
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SysFSCharacterDevicesDirectory& SysFSCharacterDevicesDirectory::the()
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{
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VERIFY(s_the);
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return *s_the;
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}
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RefPtr<SysFSComponent> SysFSCharacterDevicesDirectory::lookup(StringView name)
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{
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return m_devices_list.with([&](auto& list) -> RefPtr<SysFSComponent> {
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for (auto& exposed_device : list) {
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VERIFY(!exposed_device.is_block_device());
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if (exposed_device.name() == name)
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return exposed_device;
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}
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return nullptr;
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});
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}
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}
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