Make TestRunner more thread-safe

Change-Id: I42e5c9e26a45ef2875cf70e1c5e3b989bcce4de8
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

plugins/autotest/testconfiguration.h

@@ -22,15 +22,13 @@
 
 #include "autotestconstants.h"
 
+#include <projectexplorer/project.h>
 #include <utils/environment.h>
 
 #include <QObject>
+#include <QPointer>
 #include <QStringList>
 
-namespace ProjectExplorer {
-class Project;
-}
-
 namespace Autotest {
 namespace Internal {
 
@@ -68,7 +66,7 @@ public:
     QString workingDirectory() const { return m_workingDir; }
     QString displayName() const { return m_displayName; }
     Utils::Environment environment() const { return m_environment; }
-    ProjectExplorer::Project *project() const { return m_project; }
+    ProjectExplorer::Project *project() const { return m_project.data(); }
     bool unnamedOnly() const { return m_unnamedOnly; }
     bool guessedConfiguration() const { return m_guessedConfiguration; }
     TestType testType() const { return m_type; }
@@ -85,7 +83,7 @@ private:
     QString m_workingDir;
     QString m_displayName;
     Utils::Environment m_environment;
-    ProjectExplorer::Project *m_project;
+    QPointer<ProjectExplorer::Project> m_project;
     bool m_guessedConfiguration;
     TestType m_type;
 };

plugins/autotest/testrunner.cpp

@@ -44,7 +44,7 @@ namespace Internal {
 
 static TestRunner *m_instance = 0;
 
-void emitTestResultCreated(TestResult *testResult)
+static void emitTestResultCreated(TestResult *testResult)
 {
     emit m_instance->testResultCreated(testResult);
 }
@@ -105,9 +105,9 @@ void TestRunner::setSelectedTests(const QList<TestConfiguration *> &selected)
      m_selectedTests = selected;
 }
 
-void performTestRun(QFutureInterface<void> &futureInterface,
+static void performTestRun(QFutureInterface<void> &futureInterface,
                            const QList<TestConfiguration *> selectedTests, const int timeout,
-                    const QString metricsOption, TestRunner* testRunner)
+                           const QString metricsOption)
 {
     int testCaseCount = 0;
     foreach (TestConfiguration *config, selectedTests) {
@@ -124,9 +124,6 @@ void performTestRun(QFutureInterface<void> &futureInterface,
     QProcess testProcess;
     testProcess.setReadChannelMode(QProcess::MergedChannels);
     testProcess.setReadChannel(QProcess::StandardOutput);
-    QObject::connect(testRunner, &TestRunner::requestStopTestRun, &testProcess, [&] () {
-            futureInterface.cancel(); // this kills the process if that is still in the running loop
-    });
 
     TestOutputReader outputReader(&testProcess);
     QObject::connect(&outputReader, &TestOutputReader::increaseProgress, [&] () {
@@ -278,11 +275,15 @@ void TestRunner::runTests()
             Qt::QueuedConnection);
 
     QFuture<void> future = QtConcurrent::run(&performTestRun, m_selectedTests, settings->timeout,
-                                             metricsOption, this);
+                                             metricsOption);
+
     Core::FutureProgress *progress = Core::ProgressManager::addTask(future, tr("Running Tests"),
                                                                     Autotest::Constants::TASK_INDEX);
     connect(progress, &Core::FutureProgress::finished,
             TestRunner::instance(), &TestRunner::onFinished);
+    connect(this, &TestRunner::requestStopTestRun, progress, [progress]() {
+        progress->future().cancel();
+    });
 }
 
 void TestRunner::buildProject(ProjectExplorer::Project *project)