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thread: Convert ThreadStatus into an enum class 

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 committed by fearlessTobi
parent 2ba62ec196
commit 5dfa7b74b5
9 changed files with 89 additions and 90 deletions
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46
src/citra_qt/debugger/wait_tree.cpp
View File

@ -145,32 +145,32 @@ 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_ARB:
case ThreadStatus::WaitArb:
status = tr("waiting for address 0x%1").arg(thread.wait_address, 8, 16, QLatin1Char('0'));
break;
case THREADSTATUS_WAIT_SLEEP:
case ThreadStatus::WaitSleep:
status = tr("sleeping");
break;
case THREADSTATUS_WAIT_IPC:
case ThreadStatus::WaitIPC:
status = tr("waiting for IPC response");
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_HLE_EVENT:
case ThreadStatus::WaitHleEvent:
status = tr("waiting for HLE return");
break;
case THREADSTATUS_DORMANT:
case ThreadStatus::Dormant:
status = tr("dormant");
break;
case THREADSTATUS_DEAD:
case ThreadStatus::Dead:
status = tr("dead");
break;
}
@ -183,23 +183,23 @@ 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_ARB:
case ThreadStatus::WaitArb:
return QColor(Qt::GlobalColor::darkRed);
case THREADSTATUS_WAIT_SLEEP:
case ThreadStatus::WaitSleep:
return QColor(Qt::GlobalColor::darkYellow);
case THREADSTATUS_WAIT_IPC:
case ThreadStatus::WaitIPC:
return QColor(Qt::GlobalColor::darkCyan);
case THREADSTATUS_WAIT_SYNCH_ALL:
case THREADSTATUS_WAIT_SYNCH_ANY:
case THREADSTATUS_WAIT_HLE_EVENT:
case ThreadStatus::WaitSynchAll:
case ThreadStatus::WaitSynchAny:
case ThreadStatus::WaitHleEvent:
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();
@ -243,9 +243,9 @@ std::vector<std::unique_ptr<WaitTreeItem>> WaitTreeThread::GetChildren() const {
} else {
list.push_back(std::make_unique<WaitTreeMutexList>(thread.held_mutexes));
}
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) {
list.push_back(std::make_unique<WaitTreeObjectList>(thread.wait_objects,
thread.IsSleepingOnWaitAll()));
}

7
src/core/hle/kernel/address_arbiter.cpp
View File

@ -17,7 +17,7 @@ namespace Kernel {
void AddressArbiter::WaitThread(SharedPtr<Thread> thread, VAddr wait_address) {
thread->wait_address = wait_address;
thread->status = THREADSTATUS_WAIT_ARB;
thread->status = ThreadStatus::WaitArb;
waiting_threads.emplace_back(std::move(thread));
}
@ -25,7 +25,7 @@ void AddressArbiter::ResumeAllThreads(VAddr address) {
// Determine which threads are waiting on this address, those should be woken up.
auto itr = std::stable_partition(waiting_threads.begin(), waiting_threads.end(),
[address](const auto& thread) {
ASSERT_MSG(thread->status == THREADSTATUS_WAIT_ARB,
ASSERT_MSG(thread->status == ThreadStatus::WaitArb,
"Inconsistent AddressArbiter state");
return thread->wait_address != address;
});
@ -41,8 +41,7 @@ SharedPtr<Thread> AddressArbiter::ResumeHighestPriorityThread(VAddr address) {
// Determine which threads are waiting on this address, those should be considered for wakeup.
auto matches_start = std::stable_partition(
waiting_threads.begin(), waiting_threads.end(), [address](const auto& thread) {
ASSERT_MSG(thread->status == THREADSTATUS_WAIT_ARB,
"Inconsistent AddressArbiter state");
ASSERT_MSG(thread->status == ThreadStatus::WaitArb, "Inconsistent AddressArbiter state");
return thread->wait_address != address;
});

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

@ -39,7 +39,7 @@ SharedPtr<Event> HLERequestContext::SleepClientThread(SharedPtr<Thread> thread,
thread->wakeup_callback = [context = *this, callback](ThreadWakeupReason reason,
SharedPtr<Thread> thread,
SharedPtr<WaitObject> object) mutable {
ASSERT(thread->status == THREADSTATUS_WAIT_HLE_EVENT);
ASSERT(thread->status == ThreadStatus::WaitHleEvent);
callback(thread, context, reason);
auto& process = thread->owner_process;
@ -56,7 +56,7 @@ SharedPtr<Event> HLERequestContext::SleepClientThread(SharedPtr<Thread> thread,
};
auto event = Kernel::Event::Create(Kernel::ResetType::OneShot, "HLE Pause Event: " + reason);
thread->status = THREADSTATUS_WAIT_HLE_EVENT;
thread->status = ThreadStatus::WaitHleEvent;
thread->wait_objects = {event};
event->AddWaitingThread(thread);

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

@ -69,10 +69,10 @@ ResultCode ServerSession::HandleSyncRequest(SharedPtr<Thread> thread) {
hle_handler->HandleSyncRequest(SharedPtr<ServerSession>(this));
}
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
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@ -161,8 +161,8 @@ 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();
@ -283,14 +283,14 @@ static ResultCode WaitSynchronization1(Handle handle, s64 nano_seconds) {
thread->wait_objects = {object};
object->AddWaitingThread(thread);
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);
thread->wakeup_callback = [](ThreadWakeupReason reason, SharedPtr<Thread> thread,
SharedPtr<WaitObject> object) {
ASSERT(thread->status == THREADSTATUS_WAIT_SYNCH_ANY);
ASSERT(thread->status == ThreadStatus::WaitSynchAny);
if (reason == ThreadWakeupReason::Timeout) {
thread->SetWaitSynchronizationResult(RESULT_TIMEOUT);
@ -365,7 +365,7 @@ static ResultCode WaitSynchronizationN(s32* out, VAddr handles_address, s32 hand
return RESULT_TIMEOUT;
// Put the thread to sleep
thread->status = THREADSTATUS_WAIT_SYNCH_ALL;
thread->status = ThreadStatus::WaitSynchAll;
// Add the thread to each of the objects' waiting threads.
for (auto& object : objects) {
@ -379,7 +379,7 @@ static ResultCode WaitSynchronizationN(s32* out, VAddr handles_address, s32 hand
thread->wakeup_callback = [](ThreadWakeupReason reason, SharedPtr<Thread> thread,
SharedPtr<WaitObject> object) {
ASSERT(thread->status == THREADSTATUS_WAIT_SYNCH_ALL);
ASSERT(thread->status == ThreadStatus::WaitSynchAll);
if (reason == ThreadWakeupReason::Timeout) {
thread->SetWaitSynchronizationResult(RESULT_TIMEOUT);
@ -421,7 +421,7 @@ static ResultCode WaitSynchronizationN(s32* out, VAddr handles_address, s32 hand
return RESULT_TIMEOUT;
// Put the thread to sleep
thread->status = THREADSTATUS_WAIT_SYNCH_ANY;
thread->status = ThreadStatus::WaitSynchAny;
// Add the thread to each of the objects' waiting threads.
for (std::size_t i = 0; i < objects.size(); ++i) {
@ -439,7 +439,7 @@ static ResultCode WaitSynchronizationN(s32* out, VAddr handles_address, s32 hand
thread->wakeup_callback = [](ThreadWakeupReason reason, SharedPtr<Thread> thread,
SharedPtr<WaitObject> object) {
ASSERT(thread->status == THREADSTATUS_WAIT_SYNCH_ANY);
ASSERT(thread->status == ThreadStatus::WaitSynchAny);
if (reason == ThreadWakeupReason::Timeout) {
thread->SetWaitSynchronizationResult(RESULT_TIMEOUT);
@ -578,7 +578,7 @@ static ResultCode ReplyAndReceive(s32* index, VAddr handles_address, s32 handle_
// No objects were ready to be acquired, prepare to suspend the thread.
// Put the thread to sleep
thread->status = THREADSTATUS_WAIT_SYNCH_ANY;
thread->status = ThreadStatus::WaitSynchAny;
// Add the thread to each of the objects' waiting threads.
for (std::size_t i = 0; i < objects.size(); ++i) {
@ -590,7 +590,7 @@ static ResultCode ReplyAndReceive(s32* index, VAddr handles_address, s32 handle_
thread->wakeup_callback = [](ThreadWakeupReason reason, SharedPtr<Thread> thread,
SharedPtr<WaitObject> object) {
ASSERT(thread->status == THREADSTATUS_WAIT_SYNCH_ANY);
ASSERT(thread->status == ThreadStatus::WaitSynchAny);
ASSERT(reason == ThreadWakeupReason::Signal);
ResultCode result = RESULT_SUCCESS;

54
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) {
@ -75,11 +75,11 @@ 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) {
ready_queue.remove(current_priority, this);
}
status = THREADSTATUS_DEAD;
status = ThreadStatus::Dead;
WakeupAllWaitingThreads();
@ -111,17 +111,17 @@ static void SwitchContext(Thread* new_thread) {
previous_thread->last_running_ticks = CoreTiming::GetTicks();
Core::CPU().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
@ -132,7 +132,7 @@ static void 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) {
Kernel::g_current_process = current_thread->owner_process;
@ -156,7 +156,7 @@ static Thread* PopNextReadyThread() {
Thread* next;
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);
@ -173,7 +173,7 @@ static Thread* PopNextReadyThread() {
void WaitCurrentThread_Sleep() {
Thread* thread = GetCurrentThread();
thread->status = THREADSTATUS_WAIT_SLEEP;
thread->status = ThreadStatus::WaitSleep;
}
void ExitCurrentThread() {
@ -195,9 +195,9 @@ static void ThreadWakeupCallback(u64 thread_handle, s64 cycles_late) {
return;
}
if (thread->status == THREADSTATUS_WAIT_SYNCH_ANY ||
thread->status == THREADSTATUS_WAIT_SYNCH_ALL || thread->status == THREADSTATUS_WAIT_ARB ||
thread->status == THREADSTATUS_WAIT_HLE_EVENT) {
if (thread->status == ThreadStatus::WaitSynchAny ||
thread->status == ThreadStatus::WaitSynchAll || thread->status == ThreadStatus::WaitArb ||
thread->status == ThreadStatus::WaitHleEvent) {
// Invoke the wakeup callback before clearing the wait objects
if (thread->wakeup_callback)
@ -224,27 +224,27 @@ 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_ARB:
case THREADSTATUS_WAIT_SLEEP:
case THREADSTATUS_WAIT_IPC:
case ThreadStatus::WaitSynchAll:
case ThreadStatus::WaitSynchAny:
case ThreadStatus::WaitHleEvent:
case ThreadStatus::WaitArb:
case ThreadStatus::WaitSleep:
case ThreadStatus::WaitIPC:
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());
@ -254,7 +254,7 @@ void Thread::ResumeFromWait() {
wakeup_callback = nullptr;
ready_queue.push_back(current_priority, this);
status = THREADSTATUS_READY;
status = ThreadStatus::Ready;
Core::System::GetInstance().PrepareReschedule();
}
@ -349,7 +349,7 @@ ResultVal<SharedPtr<Thread>> Thread::Create(std::string name, VAddr entry_point,
ready_queue.prepare(priority);
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;
@ -408,7 +408,7 @@ ResultVal<SharedPtr<Thread>> Thread::Create(std::string name, VAddr entry_point,
ResetThreadContext(thread->context, stack_top, entry_point, arg);
ready_queue.push_back(thread->current_priority, thread.get());
thread->status = THREADSTATUS_READY;
thread->status = ThreadStatus::Ready;
return MakeResult<SharedPtr<Thread>>(std::move(thread));
}
@ -417,7 +417,7 @@ void Thread::SetPriority(u32 priority) {
ASSERT_MSG(priority <= THREADPRIO_LOWEST && priority >= THREADPRIO_HIGHEST,
"Invalid priority value.");
// If thread was ready, adjust queues
if (status == THREADSTATUS_READY)
if (status == ThreadStatus::Ready)
ready_queue.move(this, current_priority, priority);
else
ready_queue.prepare(priority);
@ -436,7 +436,7 @@ void Thread::UpdatePriority() {
void Thread::BoostPriority(u32 priority) {
// If thread was ready, adjust queues
if (status == THREADSTATUS_READY)
if (status == ThreadStatus::Ready)
ready_queue.move(this, current_priority, priority);
else
ready_queue.prepare(priority);

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

@ -31,16 +31,16 @@ enum ThreadProcessorId : s32 {
};
enum ThreadStatus {
THREADSTATUS_RUNNING, ///< Currently running
THREADSTATUS_READY, ///< Ready to run
THREADSTATUS_WAIT_ARB, ///< Waiting on an address arbiter
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_HLE_EVENT, ///< Waiting due to an HLE handler pausing the thread
THREADSTATUS_DORMANT, ///< Created but not yet made ready
THREADSTATUS_DEAD ///< Run to completion, or forcefully terminated
Running, ///< Currently running
Ready, ///< Ready to run
WaitArb, ///< Waiting on an address arbiter
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
WaitHleEvent, ///< Waiting due to an HLE handler pausing the thread
Dormant, ///< Created but not yet made ready
Dead ///< Run to completion, or forcefully terminated
};
enum class ThreadWakeupReason {
@ -178,16 +178,16 @@ public:
* with wait_all = true.
*/
bool IsSleepingOnWaitAll() const {
return status == THREADSTATUS_WAIT_SYNCH_ALL;
return status == ThreadStatus::WaitSynchAll;
}
std::unique_ptr<ARM_Interface::ThreadContext> context;
u32 thread_id;
u32 status;
u32 entry_point;
u32 stack_top;
ThreadStatus status;
VAddr entry_point;
VAddr stack_top;
u32 nominal_priority; ///< Nominal thread priority, as set by the emulated application
u32 current_priority; ///< Current thread priority, can be temporarily changed

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());

4
src/core/hle/service/service.cpp
View File

@ -198,11 +198,11 @@ void ServiceFrameworkBase::HandleSyncRequest(SharedPtr<ServerSession> server_ses
handler_invoker(this, info->handler_callback, context);
auto thread = Kernel::GetCurrentThread();
ASSERT(thread->status == THREADSTATUS_RUNNING || thread->status == THREADSTATUS_WAIT_HLE_EVENT);
ASSERT(thread->status == ThreadStatus::Running || thread->status == ThreadStatus::WaitHleEvent);
// Only write the response immediately if the thread is still running. If the HLE handler put
// the thread to sleep then the writing of the command buffer will be deferred to the wakeup
// callback.
if (thread->status == THREADSTATUS_RUNNING) {
if (thread->status == ThreadStatus::Running) {
context.WriteToOutgoingCommandBuffer(cmd_buf, *Kernel::g_current_process,
Kernel::g_handle_table);
}