mirror of
https://github.com/RGBCube/serenity
synced 2025-05-20 18:15:07 +00:00
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. :^)
79 lines
2.1 KiB
C++
79 lines
2.1 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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#include <Kernel/FileSystem/SysFS.h>
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#include <Kernel/FileSystem/SysFSComponent.h>
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namespace Kernel {
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static Spinlock s_index_lock;
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static InodeIndex s_next_inode_index { 0 };
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static size_t allocate_inode_index()
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{
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SpinlockLocker lock(s_index_lock);
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s_next_inode_index = s_next_inode_index.value() + 1;
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VERIFY(s_next_inode_index > 0);
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return s_next_inode_index.value();
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}
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SysFSComponent::SysFSComponent(StringView name)
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: m_name(KString::try_create(name).release_value()) // FIXME: Handle KString allocation failure.
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, m_component_index(allocate_inode_index())
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{
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}
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mode_t SysFSComponent::permissions() const
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{
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return S_IRUSR | S_IRGRP | S_IROTH;
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}
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ErrorOr<void> SysFSDirectory::traverse_as_directory(unsigned fsid, Function<bool(FileSystem::DirectoryEntryView const&)> callback) const
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{
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MutexLocker locker(SysFSComponentRegistry::the().get_lock());
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VERIFY(m_parent_directory);
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callback({ ".", { fsid, component_index() }, 0 });
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callback({ "..", { fsid, m_parent_directory->component_index() }, 0 });
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for (auto& component : m_components) {
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InodeIdentifier identifier = { fsid, component.component_index() };
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callback({ component.name(), identifier, 0 });
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}
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return {};
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}
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RefPtr<SysFSComponent> SysFSDirectory::lookup(StringView name)
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{
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for (auto& component : m_components) {
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if (component.name() == name) {
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return component;
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}
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}
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return {};
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}
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SysFSDirectory::SysFSDirectory(StringView name)
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: SysFSComponent(name)
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{
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}
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SysFSDirectory::SysFSDirectory(StringView name, SysFSDirectory const& parent_directory)
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: SysFSComponent(name)
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, m_parent_directory(parent_directory)
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{
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}
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ErrorOr<NonnullRefPtr<SysFSInode>> SysFSDirectory::to_inode(SysFS const& sysfs_instance) const
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{
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return TRY(SysFSDirectoryInode::try_create(sysfs_instance, *this));
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}
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ErrorOr<NonnullRefPtr<SysFSInode>> SysFSComponent::to_inode(SysFS const& sysfs_instance) const
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{
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return SysFSInode::try_create(sysfs_instance, *this);
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}
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}
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