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EmuThread: refactor

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This commit is contained in:
Liam 2022-12-17 14:34:03 -05:00
parent 5da72a891f
commit d3123079e8
6 changed files with 64 additions and 172 deletions
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18
src/core/core.cpp
View file

@ -183,26 +183,20 @@ struct System::Impl {
Initialize(system);
}
SystemResultStatus Run() {
void Run() {
std::unique_lock<std::mutex> lk(suspend_guard);
status = SystemResultStatus::Success;
kernel.Suspend(false);
core_timing.SyncPause(false);
is_paused.store(false, std::memory_order_relaxed);
return status;
}
SystemResultStatus Pause() {
void Pause() {
std::unique_lock<std::mutex> lk(suspend_guard);
status = SystemResultStatus::Success;
core_timing.SyncPause(true);
kernel.Suspend(true);
is_paused.store(true, std::memory_order_relaxed);
return status;
}
bool IsPaused() const {
@ -553,12 +547,12 @@ void System::Initialize() {
impl->Initialize(*this);
}
SystemResultStatus System::Run() {
return impl->Run();
void System::Run() {
impl->Run();
}
SystemResultStatus System::Pause() {
return impl->Pause();
void System::Pause() {
impl->Pause();
}
bool System::IsPaused() const {

4
src/core/core.h
View file

@ -152,13 +152,13 @@ public:
* Run the OS and Application
* This function will start emulation and run the relevant devices
*/
[[nodiscard]] SystemResultStatus Run();
void Run();
/**
* Pause the OS and Application
* This function will pause emulation and stop the relevant devices
*/
[[nodiscard]] SystemResultStatus Pause();
void Pause();
/// Check if the core is currently paused.
[[nodiscard]] bool IsPaused() const;

82
src/yuzu/bootmanager.cpp
View file

@ -46,30 +46,28 @@
static Core::Frontend::WindowSystemType GetWindowSystemType();
EmuThread::EmuThread(Core::System& system_) : system{system_} {}
EmuThread::EmuThread(Core::System& system) : m_system{system} {}
EmuThread::~EmuThread() = default;
void EmuThread::run() {
std::string name = "EmuControlThread";
MicroProfileOnThreadCreate(name.c_str());
Common::SetCurrentThreadName(name.c_str());
const char* name = "EmuControlThread";
MicroProfileOnThreadCreate(name);
Common::SetCurrentThreadName(name);
auto& gpu = system.GPU();
auto stop_token = stop_source.get_token();
bool debugger_should_start = system.DebuggerEnabled();
auto& gpu = m_system.GPU();
auto stop_token = m_stop_source.get_token();
system.RegisterHostThread();
m_system.RegisterHostThread();
// Main process has been loaded. Make the context current to this thread and begin GPU and CPU
// execution.
gpu.ObtainContext();
emit LoadProgress(VideoCore::LoadCallbackStage::Prepare, 0, 0);
if (Settings::values.use_disk_shader_cache.GetValue()) {
system.Renderer().ReadRasterizer()->LoadDiskResources(
system.GetCurrentProcessProgramID(), stop_token,
m_system.Renderer().ReadRasterizer()->LoadDiskResources(
m_system.GetCurrentProcessProgramID(), stop_token,
[this](VideoCore::LoadCallbackStage stage, std::size_t value, std::size_t total) {
emit LoadProgress(stage, value, total);
});
@ -79,57 +77,35 @@ void EmuThread::run() {
gpu.ReleaseContext();
gpu.Start();
system.GetCpuManager().OnGpuReady();
m_system.GetCpuManager().OnGpuReady();
m_system.RegisterExitCallback([this] { m_stop_source.request_stop(); });
system.RegisterExitCallback([this]() {
stop_source.request_stop();
SetRunning(false);
});
if (m_system.DebuggerEnabled()) {
m_system.InitializeDebugger();
}
// Holds whether the cpu was running during the last iteration,
// so that the DebugModeLeft signal can be emitted before the
// next execution step
bool was_active = false;
while (!stop_token.stop_requested()) {
if (running) {
if (was_active) {
emit DebugModeLeft();
}
std::unique_lock lk{m_should_run_mutex};
if (m_should_run) {
m_system.Run();
m_is_running.store(true);
m_is_running.notify_all();
running_guard = true;
Core::SystemResultStatus result = system.Run();
if (result != Core::SystemResultStatus::Success) {
running_guard = false;
this->SetRunning(false);
emit ErrorThrown(result, system.GetStatusDetails());
}
if (debugger_should_start) {
system.InitializeDebugger();
debugger_should_start = false;
}
running_wait.Wait();
result = system.Pause();
if (result != Core::SystemResultStatus::Success) {
running_guard = false;
this->SetRunning(false);
emit ErrorThrown(result, system.GetStatusDetails());
}
running_guard = false;
if (!stop_token.stop_requested()) {
was_active = true;
emit DebugModeEntered();
}
Common::CondvarWait(m_should_run_cv, lk, stop_token, [&] { return !m_should_run; });
} else {
std::unique_lock lock{running_mutex};
Common::CondvarWait(running_cv, lock, stop_token, [&] { return IsRunning(); });
m_system.Pause();
m_is_running.store(false);
m_is_running.notify_all();
emit DebugModeEntered();
Common::CondvarWait(m_should_run_cv, lk, stop_token, [&] { return m_should_run; });
emit DebugModeLeft();
}
}
// Shutdown the main emulated process
system.ShutdownMainProcess();
m_system.DetachDebugger();
m_system.ShutdownMainProcess();
#if MICROPROFILE_ENABLED
MicroProfileOnThreadExit();

51
src/yuzu/bootmanager.h
View file

@ -47,7 +47,7 @@ class EmuThread final : public QThread {
Q_OBJECT
public:
explicit EmuThread(Core::System& system_);
explicit EmuThread(Core::System& system);
~EmuThread() override;
/**
@ -57,30 +57,30 @@ public:
void run() override;
/**
* Sets whether the emulation thread is running or not
* @param running_ Boolean value, set the emulation thread to running if true
* @note This function is thread-safe
* Sets whether the emulation thread should run or not
* @param should_run Boolean value, set the emulation thread to running if true
*/
void SetRunning(bool running_) {
std::unique_lock lock{running_mutex};
running = running_;
lock.unlock();
running_cv.notify_all();
if (!running) {
running_wait.Set();
/// Wait until effectively paused
while (running_guard)
;
void SetRunning(bool should_run) {
// TODO: Prevent other threads from modifying the state until we finish.
{
// Notify the running thread to change state.
std::unique_lock run_lk{m_should_run_mutex};
m_should_run = should_run;
m_should_run_cv.notify_one();
}
// Wait until paused, if pausing.
if (!should_run) {
m_is_running.wait(true);
}
}
/**
* Check if the emulation thread is running or not
* @return True if the emulation thread is running, otherwise false
* @note This function is thread-safe
*/
bool IsRunning() const {
return running;
return m_is_running.load();
}
/**
@ -88,18 +88,17 @@ public:
*/
void ForceStop() {
LOG_WARNING(Frontend, "Force stopping EmuThread");
stop_source.request_stop();
SetRunning(false);
m_stop_source.request_stop();
}
private:
bool running = false;
std::stop_source stop_source;
std::mutex running_mutex;
std::condition_variable_any running_cv;
Common::Event running_wait{};
std::atomic_bool running_guard{false};
Core::System& system;
Core::System& m_system;
std::stop_source m_stop_source;
std::mutex m_should_run_mutex;
std::condition_variable_any m_should_run_cv;
std::atomic<bool> m_is_running{false};
bool m_should_run{true};
signals:
/**
@ -120,8 +119,6 @@ signals:
*/
void DebugModeLeft();
void ErrorThrown(Core::SystemResultStatus, std::string);
void LoadProgress(VideoCore::LoadCallbackStage stage, std::size_t value, std::size_t total);
};

80
src/yuzu/main.cpp
View file

@ -1794,15 +1794,16 @@ void GMainWindow::ShutdownGame() {
Settings::values.use_speed_limit.SetValue(true);
system->SetShuttingDown(true);
system->DetachDebugger();
discord_rpc->Pause();
RequestGameExit();
emu_thread->disconnect();
emu_thread->SetRunning(true);
emit EmulationStopping();
// Wait for emulation thread to complete and delete it
if (!emu_thread->wait(5000)) {
if (system->DebuggerEnabled() || !emu_thread->wait(5000)) {
emu_thread->ForceStop();
emu_thread->wait();
}
@ -2916,8 +2917,6 @@ void GMainWindow::OnStartGame() {
emu_thread->SetRunning(true);
connect(emu_thread.get(), &EmuThread::ErrorThrown, this, &GMainWindow::OnCoreError);
UpdateMenuState();
OnTasStateChanged();
@ -3901,79 +3900,6 @@ void GMainWindow::OnMouseActivity() {
mouse_center_timer.stop();
}
void GMainWindow::OnCoreError(Core::SystemResultStatus result, std::string details) {
QMessageBox::StandardButton answer;
QString status_message;
const QString common_message =
tr("The game you are trying to load requires additional files from your Switch to be "
"dumped "
"before playing.<br/><br/>For more information on dumping these files, please see the "
"following wiki page: <a "
"href='https://yuzu-emu.org/wiki/"
"dumping-system-archives-and-the-shared-fonts-from-a-switch-console/'>Dumping System "
"Archives and the Shared Fonts from a Switch Console</a>.<br/><br/>Would you like to "
"quit "
"back to the game list? Continuing emulation may result in crashes, corrupted save "
"data, or other bugs.");
switch (result) {
case Core::SystemResultStatus::ErrorSystemFiles: {
QString message;
if (details.empty()) {
message =
tr("yuzu was unable to locate a Switch system archive. %1").arg(common_message);
} else {
message = tr("yuzu was unable to locate a Switch system archive: %1. %2")
.arg(QString::fromStdString(details), common_message);
}
answer = QMessageBox::question(this, tr("System Archive Not Found"), message,
QMessageBox::Yes | QMessageBox::No, QMessageBox::No);
status_message = tr("System Archive Missing");
break;
}
case Core::SystemResultStatus::ErrorSharedFont: {
const QString message =
tr("yuzu was unable to locate the Switch shared fonts. %1").arg(common_message);
answer = QMessageBox::question(this, tr("Shared Fonts Not Found"), message,
QMessageBox::Yes | QMessageBox::No, QMessageBox::No);
status_message = tr("Shared Font Missing");
break;
}
default:
answer = QMessageBox::question(
this, tr("Fatal Error"),
tr("yuzu has encountered a fatal error, please see the log for more details. "
"For more information on accessing the log, please see the following page: "
"<a href='https://community.citra-emu.org/t/how-to-upload-the-log-file/296'>How "
"to "
"Upload the Log File</a>.<br/><br/>Would you like to quit back to the game "
"list? "
"Continuing emulation may result in crashes, corrupted save data, or other "
"bugs."),
QMessageBox::Yes | QMessageBox::No, QMessageBox::No);
status_message = tr("Fatal Error encountered");
break;
}
if (answer == QMessageBox::Yes) {
if (emu_thread) {
ShutdownGame();
Settings::RestoreGlobalState(system->IsPoweredOn());
system->HIDCore().ReloadInputDevices();
UpdateStatusButtons();
}
} else {
// Only show the message if the game is still running.
if (emu_thread) {
emu_thread->SetRunning(true);
message_label->setText(status_message);
}
}
}
void GMainWindow::OnReinitializeKeys(ReinitializeKeyBehavior behavior) {
if (behavior == ReinitializeKeyBehavior::Warning) {
const auto res = QMessageBox::information(

1
src/yuzu/main.h
View file

@ -332,7 +332,6 @@ private slots:
void ResetWindowSize900();
void ResetWindowSize1080();
void OnCaptureScreenshot();
void OnCoreError(Core::SystemResultStatus, std::string);
void OnReinitializeKeys(ReinitializeKeyBehavior behavior);
void OnLanguageChanged(const QString& locale);
void OnMouseActivity();