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Qt: Create emu thread on bootup, kill it on shutdown.

This commit is contained in:
bunnei 2015-04-16 23:31:14 -04:00
parent d5665fea89
commit 28df8dbfeb
3 changed files with 44 additions and 31 deletions

View File

@ -30,21 +30,19 @@
EmuThread::EmuThread(GRenderWindow* render_window) :
exec_cpu_step(false), cpu_running(false), stop_run(false), render_window(render_window) {
shutdown_event.Reset();
connect(this, SIGNAL(started()), render_window, SLOT(moveContext()));
}
void EmuThread::run()
{
void EmuThread::run() {
stop_run = false;
// 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_run)
{
if (cpu_running)
{
while (!stop_run) {
if (cpu_running) {
if (!was_active)
emit DebugModeLeft();
@ -53,9 +51,7 @@ void EmuThread::run()
was_active = cpu_running || exec_cpu_step;
if (!was_active)
emit DebugModeEntered();
}
else if (exec_cpu_step)
{
} else if (exec_cpu_step) {
if (!was_active)
emit DebugModeLeft();
@ -67,15 +63,14 @@ void EmuThread::run()
was_active = false;
}
}
render_window->moveContext();
Core::Stop();
shutdown_event.Set();
}
void EmuThread::Stop()
{
if (!isRunning())
{
void EmuThread::Stop() {
if (!isRunning()) {
LOG_WARNING(Frontend, "EmuThread::Stop called while emu thread wasn't running, returning...");
return;
}
@ -88,23 +83,19 @@ void EmuThread::Stop()
// TODO: Waiting here is just a bad workaround for retarded shutdown logic.
wait(1000);
if (isRunning())
{
if (isRunning()) {
LOG_WARNING(Frontend, "EmuThread still running, terminating...");
quit();
// TODO: Waiting 50 seconds can be necessary if the logging subsystem has a lot of spam
// queued... This should be fixed.
wait(50000);
if (isRunning())
{
if (isRunning()) {
LOG_CRITICAL(Frontend, "EmuThread STILL running, something is wrong here...");
terminate();
}
}
LOG_INFO(Frontend, "EmuThread stopped");
System::Shutdown();
}

View File

@ -9,6 +9,7 @@
#include "common/common.h"
#include "common/emu_window.h"
#include "common/thread.h"
class QScreen;
class QKeyEvent;
@ -37,20 +38,31 @@ public:
void ExecStep() { exec_cpu_step = true; }
/**
* Allow the CPU to continue processing instructions without interruption
* Sets whether the CPU is running
*
* @note This function is thread-safe
*/
void SetCpuRunning(bool running) { cpu_running = running; }
/**
* Allow the CPU to continue processing instructions without interruption
*
* @note This function is thread-safe
*/
* Allow the CPU to continue processing instructions without interruption
*
* @note This function is thread-safe
*/
bool IsCpuRunning() { return cpu_running; }
/**
* Shutdown (permantently stops) the CPU
*/
void ShutdownCpu() { stop_run = true; };
/**
* Waits for the CPU shutdown to complete
*/
void WaitForCpuShutdown() { shutdown_event.Wait(); }
public slots:
/**
* Stop emulation and wait for the thread to finish.
@ -71,6 +83,8 @@ private:
GRenderWindow* render_window;
Common::Event shutdown_event;
signals:
/**
* Emitted when the CPU has halted execution

View File

@ -57,7 +57,6 @@ GMainWindow::GMainWindow() : emu_thread(nullptr)
render_window = new GRenderWindow(this, *this);
render_window->hide();
emu_thread = new EmuThread(render_window);
profilerWidget = new ProfilerWidget(this);
addDockWidget(Qt::BottomDockWidgetArea, profilerWidget);
@ -197,9 +196,9 @@ void GMainWindow::OnDisplayTitleBars(bool show)
}
}
void GMainWindow::BootGame(std::string filename)
{
void GMainWindow::BootGame(std::string filename) {
LOG_INFO(Frontend, "Citra starting...\n");
System::Init(render_window);
// Load a game or die...
@ -211,6 +210,7 @@ void GMainWindow::BootGame(std::string filename)
registersWidget->OnDebugModeEntered();
callstackWidget->OnDebugModeEntered();
emu_thread = new EmuThread(render_window);
emu_thread->start();
render_window->show();
@ -248,14 +248,22 @@ void GMainWindow::OnPauseGame()
ui.action_Stop->setEnabled(true);
}
void GMainWindow::OnStopGame()
{
void GMainWindow::OnStopGame() {
emu_thread->SetCpuRunning(false);
// TODO: Shutdown core
emu_thread->ShutdownCpu();
emu_thread->WaitForCpuShutdown();
emu_thread->Stop();
delete emu_thread;
System::Shutdown();
ui.action_Start->setEnabled(true);
ui.action_Pause->setEnabled(false);
ui.action_Stop->setEnabled(false);
render_window->hide();
}
void GMainWindow::OnOpenHotkeysDialog()