let games gracefully exit

src/yuzu/bootmanager.cpp

@@ -80,6 +80,11 @@ void EmuThread::run() {
 
     system.GetCpuManager().OnGpuReady();
 
+    system.RegisterExitCallback([this]() {
+        stop_source.request_stop();
+        SetRunning(false);
+    });
+
     // Holds whether the cpu was running during the last iteration,
     // so that the DebugModeLeft signal can be emitted before the
     // next execution step

src/yuzu/bootmanager.h

@@ -11,6 +11,7 @@
 #include <QImage>
 #include <QStringList>
 #include <QThread>
+#include <QTimer>
 #include <QTouchEvent>
 #include <QWidget>
 
@@ -87,6 +88,15 @@ public:
      * Requests for the emulation thread to stop running
      */
     void RequestStop() {
+        QTimer::singleShot(5000, this, &EmuThread::ForceStop);
+    }
+
+private slots:
+    void ForceStop() {
+        if (!IsRunning()) {
+            return;
+        }
+        LOG_WARNING(Frontend, "Force stopping EmuThread");
         stop_source.request_stop();
         SetRunning(false);
     }

src/yuzu/main.cpp

@@ -1707,9 +1707,6 @@ void GMainWindow::BootGame(const QString& filename, u64 program_id, std::size_t
     system->RegisterExecuteProgramCallback(
         [this](std::size_t program_index_) { render_window->ExecuteProgram(program_index_); });
 
-    // Register an Exit callback such that Core can exit the currently running application.
-    system->RegisterExitCallback([this]() { render_window->Exit(); });
-
     connect(render_window, &GRenderWindow::Closed, this, &GMainWindow::OnStopGame);
     connect(render_window, &GRenderWindow::MouseActivity, this, &GMainWindow::OnMouseActivity);
     // BlockingQueuedConnection is important here, it makes sure we've finished refreshing our views
@@ -1793,6 +1790,8 @@ void GMainWindow::ShutdownGame() {
     system->SetShuttingDown(true);
     system->DetachDebugger();
     discord_rpc->Pause();
+
+    RequestGameExit();
     emu_thread->RequestStop();
 
     emit EmulationStopping();