Fix stuff. Make sure different ways of aborting profiling work.

logic/profiler/BaseProfiler.cpp

@@ -19,6 +19,21 @@ void BaseProfiler::beginProfiling(MinecraftProcess *process)
 	beginProfilingImpl(process);
 }
 
+void BaseProfiler::abortProfiling()
+{
+	abortProfiling();
+}
+
+void BaseProfiler::abortProfilingImpl()
+{
+	if (!m_profilerProcess)
+	{
+		return;
+	}
+	m_profilerProcess->terminate();
+	m_profilerProcess->deleteLater();
+}
+
 qint64 BaseProfiler::pid(QProcess *process)
 {
 #ifdef Q_OS_WIN

logic/profiler/BaseProfiler.h

@@ -17,16 +17,20 @@ public:
 public
 slots:
 	void beginProfiling(MinecraftProcess *process);
+	void abortProfiling();
 
 protected:
 	BaseInstance *m_instance;
+	QProcess *m_profilerProcess;
 
 	virtual void beginProfilingImpl(MinecraftProcess *process) = 0;
+	virtual void abortProfilingImpl();
 
 	qint64 pid(QProcess *process);
 
 signals:
 	void readyToLaunch(const QString &message);
+	void abortLaunch(const QString &message);
 };
 
 class BaseProfilerFactory

logic/profiler/JProfiler.cpp

@@ -22,7 +22,16 @@ void JProfiler::beginProfilingImpl(MinecraftProcess *process)
 							 .absoluteFilePath("bin/jpenable"));
 	connect(profiler, &QProcess::started, [this, port]()
 	{ emit readyToLaunch(tr("Listening on port: %1").arg(port)); });
-	connect(profiler, SIGNAL(finished(int)), profiler, SLOT(deleteLater()));
+	connect(profiler,
+			static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
+			[this](int exit, QProcess::ExitStatus status)
+	{
+		if (exit != 0 || status == QProcess::CrashExit)
+		{
+			emit abortLaunch(tr("Profiler aborted"));
+		}
+		m_profilerProcess->deleteLater();
+	});
 	profiler->start();
 }
 

logic/profiler/JVisualVM.cpp

@@ -19,8 +19,18 @@ void JVisualVM::beginProfilingImpl(MinecraftProcess *process)
 	profiler->setProgram("jvisualvm");
 	connect(profiler, &QProcess::started, [this]()
 	{ emit readyToLaunch(tr("JVisualVM started")); });
-	connect(profiler, SIGNAL(finished(int)), profiler, SLOT(deleteLater()));
+	connect(profiler,
+			static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
+			[this](int exit, QProcess::ExitStatus status)
+	{
+		if (exit != 0 || status == QProcess::CrashExit)
+		{
+			emit abortLaunch(tr("Profiler aborted"));
+		}
+		m_profilerProcess->deleteLater();
+	});
 	profiler->start();
+	m_profilerProcess = profiler;
 }
 
 void JVisualVMFactory::registerSettings(SettingsObject *settings)