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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 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
View File

@ -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);
}