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Kernel: Mark kernel smart-pointer classes as [[nodiscard]]

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And cast the unused return values to void.
This commit is contained in:
Sam Atkins 2021-12-03 10:23:09 +00:00 committed by Andreas Kling
parent 5013a6480d
commit c6a97ea843
Notes: sideshowbarker 2024-07-17 23:08:30 +09:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/SerenityOS/serenity/commit/c6a97ea8434
Pull-request: https://github.com/SerenityOS/serenity/pull/11151
10 changed files with 14 additions and 12 deletions
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2
Kernel/Bus/USB/UHCI/UHCIController.cpp
View file

@ -476,7 +476,7 @@ void UHCIController::spawn_port_proc()
if (process_name.is_error())
TODO();
Process::create_kernel_process(usb_hotplug_thread, process_name.release_value(), [&] {
(void)Process::create_kernel_process(usb_hotplug_thread, process_name.release_value(), [&] {
for (;;) {
if (m_root_hub)
m_root_hub->check_for_port_updates();

2
Kernel/FileSystem/Plan9FileSystem.cpp
View file

@ -656,7 +656,7 @@ void Plan9FS::ensure_thread()
auto process_name = KString::try_create("Plan9FS");
if (process_name.is_error())
TODO();
Process::create_kernel_process(m_thread, process_name.release_value(), [&]() {
(void)Process::create_kernel_process(m_thread, process_name.release_value(), [&]() {
thread_main();
m_thread_running.store(false, AK::MemoryOrder::memory_order_release);
});

4
Kernel/FileSystem/VirtualFileSystem.cpp
View file

@ -319,7 +319,7 @@ ErrorOr<void> VirtualFileSystem::mknod(StringView path, mode_t mode, dev_t dev,
auto basename = KLexicalPath::basename(path);
dbgln_if(VFS_DEBUG, "VirtualFileSystem::mknod: '{}' mode={} dev={} in {}", basename, mode, dev, parent_inode.identifier());
TRY(parent_inode.create_child(basename, mode, dev, current_process.euid(), current_process.egid()));
(void)TRY(parent_inode.create_child(basename, mode, dev, current_process.euid(), current_process.egid()));
return {};
}
@ -385,7 +385,7 @@ ErrorOr<void> VirtualFileSystem::mkdir(StringView path, mode_t mode, Custody& ba
auto basename = KLexicalPath::basename(path);
dbgln_if(VFS_DEBUG, "VirtualFileSystem::mkdir: '{}' in {}", basename, parent_inode.identifier());
TRY(parent_inode.create_child(basename, S_IFDIR | mode, 0, current_process.euid(), current_process.egid()));
(void)TRY(parent_inode.create_child(basename, S_IFDIR | mode, 0, current_process.euid(), current_process.egid()));
return {};
}

4
Kernel/Library/ThreadSafeNonnullRefPtr.h
View file

@ -40,7 +40,7 @@ ALWAYS_INLINE void unref_if_not_null(T* ptr)
}
template<typename T>
class NonnullRefPtr {
class [[nodiscard]] NonnullRefPtr {
template<typename U, typename P>
friend class RefPtr;
template<typename U>
@ -223,8 +223,10 @@ public:
other.exchange(ptr);
}
// clang-format off
private:
NonnullRefPtr() = delete;
// clang-format on
ALWAYS_INLINE T* as_ptr() const
{

2
Kernel/Library/ThreadSafeRefPtr.h
View file

@ -117,7 +117,7 @@ struct RefPtrTraits {
};
template<typename T, typename PtrTraits>
class RefPtr {
class [[nodiscard]] RefPtr {
template<typename U, typename P>
friend class RefPtr;
template<typename U>

2
Kernel/Library/ThreadSafeWeakPtr.h
View file

@ -11,7 +11,7 @@
namespace AK {
template<typename T>
class WeakPtr {
class [[nodiscard]] WeakPtr {
template<typename U>
friend class Weakable;

2
Kernel/Net/NetworkTask.cpp
View file

@ -46,7 +46,7 @@ void NetworkTask::spawn()
auto name = KString::try_create("NetworkTask");
if (name.is_error())
TODO();
Process::create_kernel_process(thread, name.release_value(), NetworkTask_main, nullptr);
(void)Process::create_kernel_process(thread, name.release_value(), NetworkTask_main, nullptr);
network_task = thread;
}

2
Kernel/Tasks/SyncTask.cpp
View file

@ -15,7 +15,7 @@ namespace Kernel {
UNMAP_AFTER_INIT void SyncTask::spawn()
{
RefPtr<Thread> syncd_thread;
Process::create_kernel_process(syncd_thread, KString::must_create("SyncTask"), [] {
(void)Process::create_kernel_process(syncd_thread, KString::must_create("SyncTask"), [] {
dbgln("SyncTask is running");
for (;;) {
VirtualFileSystem::sync();

2
Kernel/WorkQueue.cpp
View file

@ -25,7 +25,7 @@ UNMAP_AFTER_INIT WorkQueue::WorkQueue(StringView name)
auto name_kstring = KString::try_create(name);
if (name_kstring.is_error())
TODO();
Process::create_kernel_process(thread, name_kstring.release_value(), [this] {
(void)Process::create_kernel_process(thread, name_kstring.release_value(), [this] {
for (;;) {
WorkItem* item;
bool have_more;

4
Kernel/init.cpp
View file

@ -220,7 +220,7 @@ extern "C" [[noreturn]] UNMAP_AFTER_INIT void init(BootInfo const& boot_info)
{
RefPtr<Thread> init_stage2_thread;
Process::create_kernel_process(init_stage2_thread, KString::must_create("init_stage2"), init_stage2, nullptr, THREAD_AFFINITY_DEFAULT, Process::RegisterProcess::No);
(void)Process::create_kernel_process(init_stage2_thread, KString::must_create("init_stage2"), init_stage2, nullptr, THREAD_AFFINITY_DEFAULT, Process::RegisterProcess::No);
// We need to make sure we drop the reference for init_stage2_thread
// before calling into Scheduler::start, otherwise we will have a
// dangling Thread that never gets cleaned up
@ -319,7 +319,7 @@ void init_stage2(void*)
(void)RandomDevice::must_create().leak_ref();
PTYMultiplexer::initialize();
SB16::try_detect_and_create();
(void)SB16::try_detect_and_create();
AC97::detect();
StorageManagement::the().initialize(kernel_command_line().root_device(), kernel_command_line().is_force_pio());