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thread: Convert ThreadStatus into an enum class

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Makes the thread status strongly typed, so implicit conversions can't
happen. It also makes it easier to catch mistakes at compile time.
This commit is contained in:
Lioncash 2018-07-19 21:39:05 -04:00
parent d3cfaf95c8
commit dbfe82773d
10 changed files with 92 additions and 93 deletions
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4
src/core/hle/kernel/address_arbiter.cpp
View file

@ -20,7 +20,7 @@ namespace AddressArbiter {
static ResultCode WaitForAddress(VAddr address, s64 timeout) {
SharedPtr<Thread> current_thread = GetCurrentThread();
current_thread->arb_wait_address = address;
current_thread->status = THREADSTATUS_WAIT_ARB;
current_thread->status = ThreadStatus::WaitArb;
current_thread->wakeup_callback = nullptr;
current_thread->WakeAfterDelay(timeout);
@ -65,7 +65,7 @@ static void WakeThreads(std::vector<SharedPtr<Thread>>& waiting_threads, s32 num
// Signal the waiting threads.
for (size_t i = 0; i < last; i++) {
ASSERT(waiting_threads[i]->status == THREADSTATUS_WAIT_ARB);
ASSERT(waiting_threads[i]->status == ThreadStatus::WaitArb);
waiting_threads[i]->SetWaitSynchronizationResult(RESULT_SUCCESS);
waiting_threads[i]->arb_wait_address = 0;
waiting_threads[i]->ResumeFromWait();

4
src/core/hle/kernel/hle_ipc.cpp
View file

@ -38,7 +38,7 @@ SharedPtr<Event> HLERequestContext::SleepClientThread(SharedPtr<Thread> thread,
thread->wakeup_callback =
[context = *this, callback](ThreadWakeupReason reason, SharedPtr<Thread> thread,
SharedPtr<WaitObject> object, size_t index) mutable -> bool {
ASSERT(thread->status == THREADSTATUS_WAIT_HLE_EVENT);
ASSERT(thread->status == ThreadStatus::WaitHLEEvent);
callback(thread, context, reason);
context.WriteToOutgoingCommandBuffer(*thread);
return true;
@ -50,7 +50,7 @@ SharedPtr<Event> HLERequestContext::SleepClientThread(SharedPtr<Thread> thread,
}
event->Clear();
thread->status = THREADSTATUS_WAIT_HLE_EVENT;
thread->status = ThreadStatus::WaitHLEEvent;
thread->wait_objects = {event};
event->AddWaitingThread(thread);

6
src/core/hle/kernel/mutex.cpp
View file

@ -28,7 +28,7 @@ static std::pair<SharedPtr<Thread>, u32> GetHighestPriorityMutexWaitingThread(
if (thread->mutex_wait_address != mutex_addr)
continue;
ASSERT(thread->status == THREADSTATUS_WAIT_MUTEX);
ASSERT(thread->status == ThreadStatus::WaitMutex);
++num_waiters;
if (highest_priority_thread == nullptr ||
@ -83,7 +83,7 @@ ResultCode Mutex::TryAcquire(VAddr address, Handle holding_thread_handle,
GetCurrentThread()->mutex_wait_address = address;
GetCurrentThread()->wait_handle = requesting_thread_handle;
GetCurrentThread()->status = THREADSTATUS_WAIT_MUTEX;
GetCurrentThread()->status = ThreadStatus::WaitMutex;
GetCurrentThread()->wakeup_callback = nullptr;
// Update the lock holder thread's priority to prevent priority inversion.
@ -121,7 +121,7 @@ ResultCode Mutex::Release(VAddr address) {
// Grant the mutex to the next waiting thread and resume it.
Memory::Write32(address, mutex_value);
ASSERT(thread->status == THREADSTATUS_WAIT_MUTEX);
ASSERT(thread->status == ThreadStatus::WaitMutex);
thread->ResumeFromWait();
thread->lock_owner = nullptr;

16
src/core/hle/kernel/scheduler.cpp
View file

@ -34,7 +34,7 @@ Thread* Scheduler::PopNextReadyThread() {
Thread* next = nullptr;
Thread* thread = GetCurrentThread();
if (thread && thread->status == THREADSTATUS_RUNNING) {
if (thread && thread->status == ThreadStatus::Running) {
// We have to do better than the current thread.
// This call returns null when that's not possible.
next = ready_queue.pop_first_better(thread->current_priority);
@ -57,17 +57,17 @@ void Scheduler::SwitchContext(Thread* new_thread) {
previous_thread->last_running_ticks = CoreTiming::GetTicks();
cpu_core->SaveContext(previous_thread->context);
if (previous_thread->status == THREADSTATUS_RUNNING) {
if (previous_thread->status == ThreadStatus::Running) {
// This is only the case when a reschedule is triggered without the current thread
// yielding execution (i.e. an event triggered, system core time-sliced, etc)
ready_queue.push_front(previous_thread->current_priority, previous_thread);
previous_thread->status = THREADSTATUS_READY;
previous_thread->status = ThreadStatus::Ready;
}
}
// Load context of new thread
if (new_thread) {
ASSERT_MSG(new_thread->status == THREADSTATUS_READY,
ASSERT_MSG(new_thread->status == ThreadStatus::Ready,
"Thread must be ready to become running.");
// Cancel any outstanding wakeup events for this thread
@ -78,7 +78,7 @@ void Scheduler::SwitchContext(Thread* new_thread) {
current_thread = new_thread;
ready_queue.remove(new_thread->current_priority, new_thread);
new_thread->status = THREADSTATUS_RUNNING;
new_thread->status = ThreadStatus::Running;
if (previous_process != current_thread->owner_process) {
Core::CurrentProcess() = current_thread->owner_process;
@ -129,14 +129,14 @@ void Scheduler::RemoveThread(Thread* thread) {
void Scheduler::ScheduleThread(Thread* thread, u32 priority) {
std::lock_guard<std::mutex> lock(scheduler_mutex);
ASSERT(thread->status == THREADSTATUS_READY);
ASSERT(thread->status == ThreadStatus::Ready);
ready_queue.push_back(priority, thread);
}
void Scheduler::UnscheduleThread(Thread* thread, u32 priority) {
std::lock_guard<std::mutex> lock(scheduler_mutex);
ASSERT(thread->status == THREADSTATUS_READY);
ASSERT(thread->status == ThreadStatus::Ready);
ready_queue.remove(priority, thread);
}
@ -144,7 +144,7 @@ void Scheduler::SetThreadPriority(Thread* thread, u32 priority) {
std::lock_guard<std::mutex> lock(scheduler_mutex);
// If thread was ready, adjust queues
if (thread->status == THREADSTATUS_READY)
if (thread->status == ThreadStatus::Ready)
ready_queue.move(thread, thread->current_priority, priority);
else
ready_queue.prepare(priority);

4
src/core/hle/kernel/server_session.cpp
View file

@ -110,10 +110,10 @@ ResultCode ServerSession::HandleSyncRequest(SharedPtr<Thread> thread) {
result = hle_handler->HandleSyncRequest(context);
}
if (thread->status == THREADSTATUS_RUNNING) {
if (thread->status == ThreadStatus::Running) {
// Put the thread to sleep until the server replies, it will be awoken in
// svcReplyAndReceive for LLE servers.
thread->status = THREADSTATUS_WAIT_IPC;
thread->status = ThreadStatus::WaitIPC;
if (hle_handler != nullptr) {
// For HLE services, we put the request threads to sleep for a short duration to

20
src/core/hle/kernel/svc.cpp
View file

@ -133,7 +133,7 @@ static ResultCode GetProcessId(u32* process_id, Handle process_handle) {
/// Default thread wakeup callback for WaitSynchronization
static bool DefaultThreadWakeupCallback(ThreadWakeupReason reason, SharedPtr<Thread> thread,
SharedPtr<WaitObject> object, size_t index) {
ASSERT(thread->status == THREADSTATUS_WAIT_SYNCH_ANY);
ASSERT(thread->status == ThreadStatus::WaitSynchAny);
if (reason == ThreadWakeupReason::Timeout) {
thread->SetWaitSynchronizationResult(RESULT_TIMEOUT);
@ -197,7 +197,7 @@ static ResultCode WaitSynchronization(Handle* index, VAddr handles_address, u64
object->AddWaitingThread(thread);
thread->wait_objects = std::move(objects);
thread->status = THREADSTATUS_WAIT_SYNCH_ANY;
thread->status = ThreadStatus::WaitSynchAny;
// Create an event to wake the thread up after the specified nanosecond delay has passed
thread->WakeAfterDelay(nano_seconds);
@ -217,7 +217,7 @@ static ResultCode CancelSynchronization(Handle thread_handle) {
return ERR_INVALID_HANDLE;
}
ASSERT(thread->status == THREADSTATUS_WAIT_SYNCH_ANY);
ASSERT(thread->status == ThreadStatus::WaitSynchAny);
thread->SetWaitSynchronizationResult(
ResultCode(ErrorModule::Kernel, ErrCodes::SynchronizationCanceled));
thread->ResumeFromWait();
@ -468,8 +468,8 @@ static void ExitProcess() {
continue;
// TODO(Subv): When are the other running/ready threads terminated?
ASSERT_MSG(thread->status == THREADSTATUS_WAIT_SYNCH_ANY ||
thread->status == THREADSTATUS_WAIT_SYNCH_ALL,
ASSERT_MSG(thread->status == ThreadStatus::WaitSynchAny ||
thread->status == ThreadStatus::WaitSynchAll,
"Exiting processes with non-waiting threads is currently unimplemented");
thread->Stop();
@ -545,7 +545,7 @@ static ResultCode StartThread(Handle thread_handle) {
return ERR_INVALID_HANDLE;
}
ASSERT(thread->status == THREADSTATUS_DORMANT);
ASSERT(thread->status == ThreadStatus::Dormant);
thread->ResumeFromWait();
Core::System::GetInstance().CpuCore(thread->processor_id).PrepareReschedule();
@ -596,7 +596,7 @@ static ResultCode WaitProcessWideKeyAtomic(VAddr mutex_addr, VAddr condition_var
current_thread->condvar_wait_address = condition_variable_addr;
current_thread->mutex_wait_address = mutex_addr;
current_thread->wait_handle = thread_handle;
current_thread->status = THREADSTATUS_WAIT_MUTEX;
current_thread->status = ThreadStatus::WaitMutex;
current_thread->wakeup_callback = nullptr;
current_thread->WakeAfterDelay(nano_seconds);
@ -656,7 +656,7 @@ static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target
if (mutex_val == 0) {
// We were able to acquire the mutex, resume this thread.
Memory::Write32(thread->mutex_wait_address, thread->wait_handle);
ASSERT(thread->status == THREADSTATUS_WAIT_MUTEX);
ASSERT(thread->status == ThreadStatus::WaitMutex);
thread->ResumeFromWait();
auto lock_owner = thread->lock_owner;
@ -672,8 +672,8 @@ static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target
Handle owner_handle = static_cast<Handle>(mutex_val & Mutex::MutexOwnerMask);
auto owner = g_handle_table.Get<Thread>(owner_handle);
ASSERT(owner);
ASSERT(thread->status != THREADSTATUS_RUNNING);
thread->status = THREADSTATUS_WAIT_MUTEX;
ASSERT(thread->status != ThreadStatus::Running);
thread->status = ThreadStatus::WaitMutex;
thread->wakeup_callback = nullptr;
// Signal that the mutex now has a waiting thread.

47
src/core/hle/kernel/thread.cpp
View file

@ -30,7 +30,7 @@ namespace Kernel {
static CoreTiming::EventType* ThreadWakeupEventType = nullptr;
bool Thread::ShouldWait(Thread* thread) const {
return status != THREADSTATUS_DEAD;
return status != ThreadStatus::Dead;
}
void Thread::Acquire(Thread* thread) {
@ -63,11 +63,11 @@ void Thread::Stop() {
// Clean up thread from ready queue
// This is only needed when the thread is termintated forcefully (SVC TerminateProcess)
if (status == THREADSTATUS_READY) {
if (status == ThreadStatus::Ready) {
scheduler->UnscheduleThread(this, current_priority);
}
status = THREADSTATUS_DEAD;
status = ThreadStatus::Dead;
WakeupAllWaitingThreads();
@ -86,7 +86,7 @@ void Thread::Stop() {
void WaitCurrentThread_Sleep() {
Thread* thread = GetCurrentThread();
thread->status = THREADSTATUS_WAIT_SLEEP;
thread->status = ThreadStatus::WaitSleep;
}
void ExitCurrentThread() {
@ -110,10 +110,9 @@ static void ThreadWakeupCallback(u64 thread_handle, int cycles_late) {
bool resume = true;
if (thread->status == THREADSTATUS_WAIT_SYNCH_ANY ||
thread->status == THREADSTATUS_WAIT_SYNCH_ALL ||
thread->status == THREADSTATUS_WAIT_HLE_EVENT) {
if (thread->status == ThreadStatus::WaitSynchAny ||
thread->status == ThreadStatus::WaitSynchAll ||
thread->status == ThreadStatus::WaitHLEEvent) {
// Remove the thread from each of its waiting objects' waitlists
for (auto& object : thread->wait_objects)
object->RemoveWaitingThread(thread.get());
@ -126,7 +125,7 @@ static void ThreadWakeupCallback(u64 thread_handle, int cycles_late) {
if (thread->mutex_wait_address != 0 || thread->condvar_wait_address != 0 ||
thread->wait_handle) {
ASSERT(thread->status == THREADSTATUS_WAIT_MUTEX);
ASSERT(thread->status == ThreadStatus::WaitMutex);
thread->mutex_wait_address = 0;
thread->condvar_wait_address = 0;
thread->wait_handle = 0;
@ -141,7 +140,7 @@ static void ThreadWakeupCallback(u64 thread_handle, int cycles_late) {
}
if (thread->arb_wait_address != 0) {
ASSERT(thread->status == THREADSTATUS_WAIT_ARB);
ASSERT(thread->status == ThreadStatus::WaitArb);
thread->arb_wait_address = 0;
}
@ -178,28 +177,28 @@ void Thread::ResumeFromWait() {
ASSERT_MSG(wait_objects.empty(), "Thread is waking up while waiting for objects");
switch (status) {
case THREADSTATUS_WAIT_SYNCH_ALL:
case THREADSTATUS_WAIT_SYNCH_ANY:
case THREADSTATUS_WAIT_HLE_EVENT:
case THREADSTATUS_WAIT_SLEEP:
case THREADSTATUS_WAIT_IPC:
case THREADSTATUS_WAIT_MUTEX:
case THREADSTATUS_WAIT_ARB:
case ThreadStatus::WaitSynchAll:
case ThreadStatus::WaitSynchAny:
case ThreadStatus::WaitHLEEvent:
case ThreadStatus::WaitSleep:
case ThreadStatus::WaitIPC:
case ThreadStatus::WaitMutex:
case ThreadStatus::WaitArb:
break;
case THREADSTATUS_READY:
case ThreadStatus::Ready:
// The thread's wakeup callback must have already been cleared when the thread was first
// awoken.
ASSERT(wakeup_callback == nullptr);
// If the thread is waiting on multiple wait objects, it might be awoken more than once
// before actually resuming. We can ignore subsequent wakeups if the thread status has
// already been set to THREADSTATUS_READY.
// already been set to ThreadStatus::Ready.
return;
case THREADSTATUS_RUNNING:
case ThreadStatus::Running:
DEBUG_ASSERT_MSG(false, "Thread with object id {} has already resumed.", GetObjectId());
return;
case THREADSTATUS_DEAD:
case ThreadStatus::Dead:
// This should never happen, as threads must complete before being stopped.
DEBUG_ASSERT_MSG(false, "Thread with object id {} cannot be resumed because it's DEAD.",
GetObjectId());
@ -208,7 +207,7 @@ void Thread::ResumeFromWait() {
wakeup_callback = nullptr;
status = THREADSTATUS_READY;
status = ThreadStatus::Ready;
boost::optional<s32> new_processor_id = GetNextProcessorId(affinity_mask);
if (!new_processor_id) {
@ -310,7 +309,7 @@ ResultVal<SharedPtr<Thread>> Thread::Create(std::string name, VAddr entry_point,
SharedPtr<Thread> thread(new Thread);
thread->thread_id = NewThreadId();
thread->status = THREADSTATUS_DORMANT;
thread->status = ThreadStatus::Dormant;
thread->entry_point = entry_point;
thread->stack_top = stack_top;
thread->nominal_priority = thread->current_priority = priority;
@ -471,7 +470,7 @@ void Thread::ChangeCore(u32 core, u64 mask) {
ideal_core = core;
affinity_mask = mask;
if (status != THREADSTATUS_READY) {
if (status != ThreadStatus::Ready) {
return;
}

28
src/core/hle/kernel/thread.h
View file

@ -36,18 +36,18 @@ enum ThreadProcessorId : s32 {
(1 << THREADPROCESSORID_2) | (1 << THREADPROCESSORID_3)
};
enum ThreadStatus {
THREADSTATUS_RUNNING, ///< Currently running
THREADSTATUS_READY, ///< Ready to run
THREADSTATUS_WAIT_HLE_EVENT, ///< Waiting for hle event to finish
THREADSTATUS_WAIT_SLEEP, ///< Waiting due to a SleepThread SVC
THREADSTATUS_WAIT_IPC, ///< Waiting for the reply from an IPC request
THREADSTATUS_WAIT_SYNCH_ANY, ///< Waiting due to WaitSynch1 or WaitSynchN with wait_all = false
THREADSTATUS_WAIT_SYNCH_ALL, ///< Waiting due to WaitSynchronizationN with wait_all = true
THREADSTATUS_WAIT_MUTEX, ///< Waiting due to an ArbitrateLock/WaitProcessWideKey svc
THREADSTATUS_WAIT_ARB, ///< Waiting due to a SignalToAddress/WaitForAddress svc
THREADSTATUS_DORMANT, ///< Created but not yet made ready
THREADSTATUS_DEAD ///< Run to completion, or forcefully terminated
enum class ThreadStatus {
Running, ///< Currently running
Ready, ///< Ready to run
WaitHLEEvent, ///< Waiting for hle event to finish
WaitSleep, ///< Waiting due to a SleepThread SVC
WaitIPC, ///< Waiting for the reply from an IPC request
WaitSynchAny, ///< Waiting due to WaitSynch1 or WaitSynchN with wait_all = false
WaitSynchAll, ///< Waiting due to WaitSynchronizationN with wait_all = true
WaitMutex, ///< Waiting due to an ArbitrateLock/WaitProcessWideKey svc
WaitArb, ///< Waiting due to a SignalToAddress/WaitForAddress svc
Dormant, ///< Created but not yet made ready
Dead ///< Run to completion, or forcefully terminated
};
enum class ThreadWakeupReason {
@ -194,14 +194,14 @@ public:
* with wait_all = true.
*/
bool IsSleepingOnWaitAll() const {
return status == THREADSTATUS_WAIT_SYNCH_ALL;
return status == ThreadStatus::WaitSynchAll;
}
ARM_Interface::ThreadContext context;
u32 thread_id;
u32 status;
ThreadStatus status;
VAddr entry_point;
VAddr stack_top;

12
src/core/hle/kernel/wait_object.cpp
View file

@ -38,9 +38,9 @@ SharedPtr<Thread> WaitObject::GetHighestPriorityReadyThread() {
for (const auto& thread : waiting_threads) {
// The list of waiting threads must not contain threads that are not waiting to be awakened.
ASSERT_MSG(thread->status == THREADSTATUS_WAIT_SYNCH_ANY ||
thread->status == THREADSTATUS_WAIT_SYNCH_ALL ||
thread->status == THREADSTATUS_WAIT_HLE_EVENT,
ASSERT_MSG(thread->status == ThreadStatus::WaitSynchAny ||
thread->status == ThreadStatus::WaitSynchAll ||
thread->status == ThreadStatus::WaitHLEEvent,
"Inconsistent thread statuses in waiting_threads");
if (thread->current_priority >= candidate_priority)
@ -49,10 +49,10 @@ SharedPtr<Thread> WaitObject::GetHighestPriorityReadyThread() {
if (ShouldWait(thread.get()))
continue;
// A thread is ready to run if it's either in THREADSTATUS_WAIT_SYNCH_ANY or
// in THREADSTATUS_WAIT_SYNCH_ALL and the rest of the objects it is waiting on are ready.
// A thread is ready to run if it's either in ThreadStatus::WaitSynchAny or
// in ThreadStatus::WaitSynchAll and the rest of the objects it is waiting on are ready.
bool ready_to_run = true;
if (thread->status == THREADSTATUS_WAIT_SYNCH_ALL) {
if (thread->status == ThreadStatus::WaitSynchAll) {
ready_to_run = std::none_of(thread->wait_objects.begin(), thread->wait_objects.end(),
[&thread](const SharedPtr<WaitObject>& object) {
return object->ShouldWait(thread.get());

44
src/yuzu/debugger/wait_tree.cpp
View file

@ -194,32 +194,32 @@ QString WaitTreeThread::GetText() const {
const auto& thread = static_cast<const Kernel::Thread&>(object);
QString status;
switch (thread.status) {
case THREADSTATUS_RUNNING:
case ThreadStatus::Running:
status = tr("running");
break;
case THREADSTATUS_READY:
case ThreadStatus::Ready:
status = tr("ready");
break;
case THREADSTATUS_WAIT_HLE_EVENT:
case ThreadStatus::WaitHLEEvent:
status = tr("waiting for HLE return");
break;
case THREADSTATUS_WAIT_SLEEP:
case ThreadStatus::WaitSleep:
status = tr("sleeping");
break;
case THREADSTATUS_WAIT_SYNCH_ALL:
case THREADSTATUS_WAIT_SYNCH_ANY:
case ThreadStatus::WaitSynchAll:
case ThreadStatus::WaitSynchAny:
status = tr("waiting for objects");
break;
case THREADSTATUS_WAIT_MUTEX:
case ThreadStatus::WaitMutex:
status = tr("waiting for mutex");
break;
case THREADSTATUS_WAIT_ARB:
case ThreadStatus::WaitArb:
status = tr("waiting for address arbiter");
break;
case THREADSTATUS_DORMANT:
case ThreadStatus::Dormant:
status = tr("dormant");
break;
case THREADSTATUS_DEAD:
case ThreadStatus::Dead:
status = tr("dead");
break;
}
@ -232,22 +232,22 @@ QString WaitTreeThread::GetText() const {
QColor WaitTreeThread::GetColor() const {
const auto& thread = static_cast<const Kernel::Thread&>(object);
switch (thread.status) {
case THREADSTATUS_RUNNING:
case ThreadStatus::Running:
return QColor(Qt::GlobalColor::darkGreen);
case THREADSTATUS_READY:
case ThreadStatus::Ready:
return QColor(Qt::GlobalColor::darkBlue);
case THREADSTATUS_WAIT_HLE_EVENT:
case ThreadStatus::WaitHLEEvent:
return QColor(Qt::GlobalColor::darkRed);
case THREADSTATUS_WAIT_SLEEP:
case ThreadStatus::WaitSleep:
return QColor(Qt::GlobalColor::darkYellow);
case THREADSTATUS_WAIT_SYNCH_ALL:
case THREADSTATUS_WAIT_SYNCH_ANY:
case THREADSTATUS_WAIT_MUTEX:
case THREADSTATUS_WAIT_ARB:
case ThreadStatus::WaitSynchAll:
case ThreadStatus::WaitSynchAny:
case ThreadStatus::WaitMutex:
case ThreadStatus::WaitArb:
return QColor(Qt::GlobalColor::red);
case THREADSTATUS_DORMANT:
case ThreadStatus::Dormant:
return QColor(Qt::GlobalColor::darkCyan);
case THREADSTATUS_DEAD:
case ThreadStatus::Dead:
return QColor(Qt::GlobalColor::gray);
default:
return WaitTreeItem::GetColor();
@ -291,8 +291,8 @@ std::vector<std::unique_ptr<WaitTreeItem>> WaitTreeThread::GetChildren() const {
else
list.push_back(std::make_unique<WaitTreeText>(tr("not waiting for mutex")));
if (thread.status == THREADSTATUS_WAIT_SYNCH_ANY ||
thread.status == THREADSTATUS_WAIT_SYNCH_ALL) {
if (thread.status == ThreadStatus::WaitSynchAny ||
thread.status == ThreadStatus::WaitSynchAll) {
list.push_back(std::make_unique<WaitTreeObjectList>(thread.wait_objects,
thread.IsSleepingOnWaitAll()));
}