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2830a0ecda
This allows us to 1) let go of the Process when an inode is ref'ing for ProcFSExposedComponent related reasons, and 2) change our ref/unref implementation.
72 lines
3.5 KiB
C++
72 lines
3.5 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.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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uid_t 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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return process->uid();
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}
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gid_t 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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return process->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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KResultOr<NonnullRefPtr<Inode>> Process::ProcessProcFSTraits::to_inode(const ProcFS& 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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auto maybe_inode = ProcFSProcessDirectoryInode::try_create(procfs_instance, process->pid());
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if (maybe_inode.is_error())
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return maybe_inode.error();
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return maybe_inode.release_value();
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}
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KResult Process::ProcessProcFSTraits::traverse_as_directory(unsigned fsid, Function<bool(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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callback({ ".", { fsid, SegmentedProcFSIndex::build_segmented_index_for_pid_directory(process->pid()) }, 0 });
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callback({ "..", { fsid, ProcFSComponentRegistry::the().root_directory().component_index() }, 0 });
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callback({ "fd", { fsid, SegmentedProcFSIndex::build_segmented_index_for_sub_directory(process->pid(), SegmentedProcFSIndex::ProcessSubDirectory::FileDescriptions) }, 0 });
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callback({ "stacks", { fsid, SegmentedProcFSIndex::build_segmented_index_for_sub_directory(process->pid(), SegmentedProcFSIndex::ProcessSubDirectory::Stacks) }, 0 });
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callback({ "unveil", { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::Unveil) }, 0 });
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callback({ "pledge", { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::Pledge) }, 0 });
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callback({ "fds", { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::FileDescriptions) }, 0 });
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callback({ "exe", { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::BinaryLink) }, 0 });
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callback({ "cwd", { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::CurrentWorkDirectoryLink) }, 0 });
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callback({ "perf_events", { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::PerformanceEvents) }, 0 });
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callback({ "vm", { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::VirtualMemoryStats) }, 0 });
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callback({ "root", { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::RootLink) }, 0 });
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return KSuccess;
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}
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}
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