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Kernel/FileSystem: Simplify the ProcFS inode code

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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.
This commit is contained in:
Liav A
2022-11-25 22:29:27 +02:00
committed by Jelle Raaijmakers
parent e9dcc49f9c
commit 722ae35329
25 changed files with 583 additions and 913 deletions
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10
Kernel/ProcessSpecificExposed.cpp
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@@ -8,7 +8,7 @@
#include <AK/JsonObjectSerializer.h>
#include <AK/JsonValue.h>
#include <Kernel/FileSystem/Custody.h>
#include <Kernel/FileSystem/ProcFS/ProcessPropertyInode.h>
#include <Kernel/FileSystem/ProcFS/Inode.h>
#include <Kernel/InterruptDisabler.h>
#include <Kernel/KBufferBuilder.h>
#include <Kernel/Memory/AnonymousVMObject.h>
@@ -65,12 +65,12 @@ ErrorOr<NonnullLockRefPtr<Inode>> Process::lookup_stacks_directory(ProcFS const&
return ENOENT;
auto needle = maybe_needle.release_value();
ErrorOr<NonnullLockRefPtr<ProcFSProcessPropertyInode>> thread_stack_inode { ENOENT };
ErrorOr<NonnullLockRefPtr<ProcFSInode>> thread_stack_inode { ENOENT };
for_each_thread([&](Thread const& thread) {
int tid = thread.tid().value();
VERIFY(!(tid < 0));
if (needle == (unsigned)tid) {
thread_stack_inode = ProcFSProcessPropertyInode::try_create_for_thread_stack(procfs, thread.tid(), pid());
thread_stack_inode = ProcFSInode::try_create_as_thread_stack_inode(procfs, thread.tid(), pid());
return IterationDecision::Break;
}
return IterationDecision::Continue;
@@ -105,7 +105,7 @@ ErrorOr<NonnullLockRefPtr<Inode>> Process::lookup_children_directory(ProcFS cons
if (!child_process || child_process->ppid() != pid())
return ENOENT;
return TRY(ProcFSProcessPropertyInode::try_create_for_child_process_link(procfs, *maybe_pid, pid()));
return TRY(ProcFSInode::try_create_as_child_process_link_inode(procfs, *maybe_pid, pid()));
}
ErrorOr<size_t> Process::procfs_get_child_proccess_link(ProcessID child_pid, KBufferBuilder& builder) const
@@ -153,7 +153,7 @@ ErrorOr<NonnullLockRefPtr<Inode>> Process::lookup_file_descriptions_directory(Pr
if (!m_fds.with_shared([&](auto& fds) { return fds.get_if_valid(*maybe_index); }))
return ENOENT;
return TRY(ProcFSProcessPropertyInode::try_create_for_file_description_link(procfs, *maybe_index, pid()));
return TRY(ProcFSInode::try_create_as_file_description_link_inode(procfs, *maybe_index, pid()));
}
ErrorOr<void> Process::procfs_get_pledge_stats(KBufferBuilder& builder) const