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722ae35329
This is done by merging all scattered pieces of derived classes from the ProcFSInode class into that one class, so we don't use inheritance but rather simplistic checks to determine the proper code for each ProcFS inode with its specific characteristics.
74 lines
3.9 KiB
C++
74 lines
3.9 KiB
C++
/*
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* Copyright (c) 2021, sin-ack <sin-ack@protonmail.com>
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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/ProcFS/Inode.h>
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#include <Kernel/Process.h>
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#include <Kernel/ProcessExposed.h>
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namespace Kernel {
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UserID Process::ProcessProcFSTraits::owner_user() const
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{
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auto process = m_process.strong_ref();
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if (!process)
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return 0;
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auto credentials = process->credentials();
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return credentials->uid();
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}
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GroupID Process::ProcessProcFSTraits::owner_group() const
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{
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auto process = m_process.strong_ref();
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if (!process)
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return 0;
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auto credentials = process->credentials();
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return credentials->gid();
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}
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InodeIndex Process::ProcessProcFSTraits::component_index() const
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{
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auto process = m_process.strong_ref();
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if (!process)
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return {};
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return SegmentedProcFSIndex::build_segmented_index_for_pid_directory(process->pid());
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}
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ErrorOr<NonnullLockRefPtr<ProcFSInode>> Process::ProcessProcFSTraits::to_inode(ProcFS const& procfs_instance) const
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{
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auto process = m_process.strong_ref();
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if (!process)
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return ESRCH;
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return TRY(ProcFSInode::try_create_as_process_directory_inode(procfs_instance, process->pid()));
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}
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ErrorOr<void> Process::ProcessProcFSTraits::traverse_as_directory(FileSystemID fsid, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)> callback) const
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{
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auto process = m_process.strong_ref();
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if (!process)
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return ESRCH;
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TRY(callback({ "."sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_pid_directory(process->pid()) }, DT_DIR }));
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TRY(callback({ ".."sv, { fsid, ProcFSComponentRegistry::the().root_directory().component_index() }, DT_DIR }));
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TRY(callback({ "fd"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_sub_directory(process->pid(), SegmentedProcFSIndex::ProcessSubDirectory::OpenFileDescriptions) }, DT_DIR }));
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TRY(callback({ "stacks"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_sub_directory(process->pid(), SegmentedProcFSIndex::ProcessSubDirectory::Stacks) }, DT_DIR }));
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TRY(callback({ "children"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_sub_directory(process->pid(), SegmentedProcFSIndex::ProcessSubDirectory::Children) }, DT_DIR }));
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TRY(callback({ "unveil"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::Unveil) }, DT_REG }));
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TRY(callback({ "pledge"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::Pledge) }, DT_REG }));
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TRY(callback({ "fds"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::OpenFileDescriptions) }, DT_DIR }));
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TRY(callback({ "exe"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::BinaryLink) }, DT_LNK }));
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TRY(callback({ "cwd"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::CurrentWorkDirectoryLink) }, DT_LNK }));
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TRY(callback({ "perf_events"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::PerformanceEvents) }, DT_REG }));
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TRY(callback({ "vm"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::VirtualMemoryStats) }, DT_REG }));
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TRY(callback({ "cmdline"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::CommandLine) }, DT_REG }));
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return {};
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}
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}
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