iOS: Make iOS simulator usage asynchronous

Change-Id: I5770b372542690560680ef3208a284c7f0cf6670
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

3 files changed, 551 insertions, 332 deletions

diff --git a/src/plugins/ios/iostoolhandler.cpp b/src/plugins/ios/iostoolhandler.cpp
index dcbb402e98..3af160cadd 100644
--- a/src/plugins/ios/iostoolhandler.cpp
+++ b/src/plugins/ios/iostoolhandler.cpp
@@ -33,6 +33,7 @@
 #include <coreplugin/icore.h>
 #include <utils/qtcassert.h>
 #include <utils/fileutils.h>
+#include "utils/runextensions.h"
 
 #include <QCoreApplication>
 #include <QFileInfo>
@@ -160,10 +161,9 @@ public:
 protected:
     void killProcess();
 
-
 protected:
     IosToolHandler *q;
-    QProcess *process;
+    std::shared_ptr<QProcess> process;
     QTimer killTimer;
     QXmlStreamReader outputParser;
     QString deviceId;
@@ -199,16 +199,63 @@ private:
     void processXml();
 };
 
+/****************************************************************************
+ * Flow to install an app on simulator:-
+ *      +------------------+
+ *      |   Transfer App   |
+ *      +--------+---------+
+ *               |
+ *               v
+ *     +---------+----------+             +--------------------------------+
+ *     |  SimulatorRunning  +---No------> +SimulatorControl::startSimulator|
+ *     +---------+----------+             +--------+-----------------------+
+ *              Yes                                |
+ *               |                                 |
+ *               v                                 |
+ * +---------+--------------------+                |
+ * | SimulatorControl::installApp | <--------------+
+ * +------------------------------+
+ *
+ *
+ *
+ * Flow to launch an app on Simulator:-
+ *            +---------+
+ *            | Run App |
+ *            +----+----+
+ *                 |
+ *                 v
+ *       +-------------------+             +----------------------------- - --+
+ *       | SimulatorRunning? +---NO------> + SimulatorControl::startSimulator |
+ *       +--------+----------+             +----------------+-----------------+
+ *                YES                                       |
+ *                 |                                        |
+ *                 v                                        |
+ * +---------+-------------------------+                    |
+ * | SimulatorControl::spawnAppProcess | <------------------+
+ * +-----------------------------------+
+ *                 |
+ *                 v
+ *       +--------+-----------+              +-----------------------------+
+ *       |    Debug Run ?     +---YES------> + Wait for debugger to attach |
+ *       +---------+----------+              +-----------+-----------------+
+ *                NO                                     |
+ *                 |                                     |
+ *                 v                                     |
+ *   +-----------------------------+                     |
+ *   | SimulatorControl::launchApp | <-------------------+
+ *   +-----------------------------+
+ ***************************************************************************/
 class IosSimulatorToolHandlerPrivate : public IosToolHandlerPrivate
 {
 public:
     explicit IosSimulatorToolHandlerPrivate(const IosDeviceType &devType, IosToolHandler *q);
+    ~IosSimulatorToolHandlerPrivate();
 
 // IosToolHandlerPrivate overrides
 public:
-    void requestTransferApp(const QString &bundlePath, const QString &deviceIdentifier,
+    void requestTransferApp(const QString &appBundlePath, const QString &deviceIdentifier,
                             int timeout = 1000) override;
-    void requestRunApp(const QString &bundlePath, const QStringList &extraArgs,
+    void requestRunApp(const QString &appBundlePath, const QStringList &extraArgs,
                        IosToolHandler::RunKind runKind,
                        const QString &deviceIdentifier, int timeout = 1000) override;
     void requestDeviceInfo(const QString &deviceId, int timeout = 1000) override;
@@ -216,15 +263,23 @@ public:
     void debuggerStateChanged(Debugger::DebuggerState state) override;
 
 private:
+    void installAppOnSimulator();
+    void spawnAppOnSimulator(const QStringList &extraArgs);
+    void launchAppOnSimulator();
+
+    bool isResponseValid(const SimulatorControl::ResponseData &responseData);
+    void onResponseAppSpawn(const SimulatorControl::ResponseData &response);
+
     void simAppProcessError(QProcess::ProcessError error);
     void simAppProcessFinished(int exitCode, QProcess::ExitStatus exitStatus);
     void simAppProcessHasData();
     void simAppProcessHasErrorOutput();
-    void launchAppOnSimulator();
 
 private:
     qint64 appPId = -1;
     bool appLaunched = false;
+    SimulatorControl *simCtl;
+    QList<QFuture<void>> futureList;
 };
 
 IosToolHandlerPrivate::IosToolHandlerPrivate(const IosDeviceType &devType,
@@ -242,12 +297,6 @@ IosToolHandlerPrivate::IosToolHandlerPrivate(const IosDeviceType &devType,
 
 IosToolHandlerPrivate::~IosToolHandlerPrivate()
 {
-    if (isRunning()) {
-        process->terminate();
-        if (!process->waitForFinished(1000))
-            process->kill();
-    }
-    delete process;
 }
 
 bool IosToolHandlerPrivate::isRunning()
@@ -559,7 +608,12 @@ IosDeviceToolHandlerPrivate::IosDeviceToolHandlerPrivate(const IosDeviceType &de
                                                          IosToolHandler *q)
     : IosToolHandlerPrivate(devType, q)
 {
-    process = new QProcess;
+    auto deleter = [](QProcess *p) {
+        p->kill();
+        p->waitForFinished(10000);
+        delete p;
+    };
+    process = std::shared_ptr<QProcess>(new QProcess, deleter);
 
     // Prepare & set process Environment.
     QProcessEnvironment env(QProcessEnvironment::systemEnvironment());
@@ -583,13 +637,13 @@ IosDeviceToolHandlerPrivate::IosDeviceToolHandlerPrivate(const IosDeviceType &de
     qCDebug(toolHandlerLog) << "IosToolHandler runEnv:" << env.toStringList();
     process->setProcessEnvironment(env);
 
-    QObject::connect(process, &QProcess::readyReadStandardOutput,
+    QObject::connect(process.get(), &QProcess::readyReadStandardOutput,
                      std::bind(&IosDeviceToolHandlerPrivate::subprocessHasData,this));
 
-    QObject::connect(process, static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
+    QObject::connect(process.get(), static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
                      std::bind(&IosDeviceToolHandlerPrivate::subprocessFinished,this, _1,_2));
 
-    QObject::connect(process, &QProcess::errorOccurred,
+    QObject::connect(process.get(), &QProcess::errorOccurred,
                      std::bind(&IosDeviceToolHandlerPrivate::subprocessError, this, _1));
 
     QObject::connect(&killTimer, &QTimer::timeout, std::bind(&IosDeviceToolHandlerPrivate::killProcess, this));
@@ -685,45 +739,56 @@ void IosDeviceToolHandlerPrivate::stop(int errorCode)
 
 IosSimulatorToolHandlerPrivate::IosSimulatorToolHandlerPrivate(const IosDeviceType &devType,
                                                          IosToolHandler *q)
-    : IosToolHandlerPrivate(devType, q)
-{ }
+    : IosToolHandlerPrivate(devType, q),
+      simCtl(new SimulatorControl)
+{
+}
 
-void IosSimulatorToolHandlerPrivate::requestTransferApp(const QString &bundlePath,
+IosSimulatorToolHandlerPrivate::~IosSimulatorToolHandlerPrivate()
+{
+    foreach (auto f, futureList) {
+        if (!f.isFinished())
+            f.cancel();
+    }
+    delete simCtl;
+}
+void IosSimulatorToolHandlerPrivate::requestTransferApp(const QString &appBundlePath,
                                                         const QString &deviceIdentifier, int timeout)
 {
     Q_UNUSED(timeout);
-    this->bundlePath = bundlePath;
-    this->deviceId = deviceIdentifier;
+    bundlePath = appBundlePath;
+    deviceId = deviceIdentifier;
     isTransferringApp(bundlePath, deviceId, 0, 100, "");
-    if (SimulatorControl::startSimulator(deviceId)) {
-        isTransferringApp(bundlePath, deviceId, 20, 100, "");
-        QByteArray cmdOutput;
-        if (SimulatorControl::installApp(deviceId, Utils::FileName::fromString(bundlePath), cmdOutput)) {
-            isTransferringApp(bundlePath, deviceId, 100, 100, "");
-            didTransferApp(bundlePath, deviceId, IosToolHandler::Success);
+
+    auto onSimulatorStart = [this](const SimulatorControl::ResponseData &response) {
+        if (!isResponseValid(response))
+            return;
+
+        if (response.success) {
+            installAppOnSimulator();
         } else {
-            errorMsg(IosToolHandler::tr("Application install on Simulator failed. %1").arg(QString::fromLocal8Bit(cmdOutput)));
+            errorMsg(IosToolHandler::tr("Application install on Simulator failed. Simulator not running."));
             didTransferApp(bundlePath, deviceId, IosToolHandler::Failure);
+            emit q->finished(q);
         }
-    } else {
-        errorMsg(IosToolHandler::tr("Application install on Simulator failed. Simulator not running."));
-        didTransferApp(bundlePath, deviceId, IosToolHandler::Failure);
-    }
-    emit q->finished(q);
-}
+    };
 
+    if (SimulatorControl::isSimulatorRunning(deviceId))
+        installAppOnSimulator();
+    else
+        futureList << Utils::onResultReady(simCtl->startSimulator(deviceId), onSimulatorStart);
+}
 
-void IosSimulatorToolHandlerPrivate::requestRunApp(const QString &bundlePath,
+void IosSimulatorToolHandlerPrivate::requestRunApp(const QString &appBundlePath,
                                                    const QStringList &extraArgs,
                                                    IosToolHandler::RunKind runType,
                                                    const QString &deviceIdentifier, int timeout)
 {
     Q_UNUSED(timeout);
     Q_UNUSED(deviceIdentifier);
-    this->bundlePath = bundlePath;
-    this->deviceId = devType.identifier;
-    this->runKind = runType;
-    op = OpAppRun;
+    bundlePath = appBundlePath;
+    deviceId = devType.identifier;
+    runKind = runType;
 
     Utils::FileName appBundle = Utils::FileName::fromString(bundlePath);
     if (!appBundle.exists()) {
@@ -733,62 +798,22 @@ void IosSimulatorToolHandlerPrivate::requestRunApp(const QString &bundlePath,
         return;
     }
 
-    if (SimulatorControl::startSimulator(deviceId)) {
-        qint64 pId = -1;
-        bool debugRun = runType == IosToolHandler::DebugRun;
-        QProcess* controlProcess = SimulatorControl::spawnAppProcess(deviceId, appBundle, pId, debugRun, extraArgs);
-        if (controlProcess) {
-            Q_ASSERT(!process || !isRunning());
-            if (process) {
-                delete process;
-                process = nullptr;
-            }
-            process = controlProcess;
-            QObject::connect(process, &QProcess::readyReadStandardOutput,
-                             std::bind(&IosSimulatorToolHandlerPrivate::simAppProcessHasData,this));
-            QObject::connect(process, &QProcess::readyReadStandardError,
-                             std::bind(&IosSimulatorToolHandlerPrivate::simAppProcessHasErrorOutput,this));
-            QObject::connect(process, static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
-                             std::bind(&IosSimulatorToolHandlerPrivate::simAppProcessFinished,this, _1,_2));
-            QObject::connect(process, &QProcess::errorOccurred,
-                             std::bind(&IosSimulatorToolHandlerPrivate::simAppProcessError, this, _1));
-
-            appPId = pId;
-            gotInferiorPid(bundlePath,deviceId,pId);
-
-            // For debug run, wait for the debugger to attach and then launch the app.
-            if (!debugRun) {
-                launchAppOnSimulator();
-            }
+    auto onSimulatorStart = [this, extraArgs] (const SimulatorControl::ResponseData &response) {
+        if (isResponseValid(response))
+            return;
+        if (response.success) {
+            spawnAppOnSimulator(extraArgs);
         } else {
-            errorMsg(IosToolHandler::tr("Spawning the Application process on Simulator failed."));
+            errorMsg(IosToolHandler::tr("Application launch on Simulator failed. Simulator not running.")
+                     .arg(bundlePath));
             didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Failure);
         }
-    } else {
-        errorMsg(IosToolHandler::tr("Application launch on Simulator failed. Simulator not running.")
-                 .arg(bundlePath));
-        didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Failure);
-    }
-}
+    };
 
-void IosSimulatorToolHandlerPrivate::launchAppOnSimulator()
-{
-    // Wait for the app to reach a state when we can launch it on the simulator.
-    if (appPId != -1 && SimulatorControl::waitForProcessSpawn(appPId)) {
-        QByteArray commandOutput;
-        Utils::FileName appBundle = Utils::FileName::fromString(bundlePath);
-        if (SimulatorControl::launchApp(deviceId, SimulatorControl::bundleIdentifier(appBundle), &commandOutput) != -1) {
-            appLaunched = true;
-            didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Success);
-        } else {
-            errorMsg(IosToolHandler::tr("Application launch on Simulator failed. %1")
-                     .arg(QString::fromLocal8Bit(commandOutput)));
-            didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Failure);
-        }
-    } else {
-        errorMsg(IosToolHandler::tr("Spawning the Application process on Simulator failed. Spawning timed out."));
-        didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Failure);
-    }
+    if (SimulatorControl::isSimulatorRunning(deviceId))
+        spawnAppOnSimulator(extraArgs);
+    else
+        futureList << Utils::onResultReady(simCtl->startSimulator(deviceId), onSimulatorStart);
 }
 
 void IosSimulatorToolHandlerPrivate::requestDeviceInfo(const QString &deviceId, int timeout)
@@ -799,19 +824,21 @@ void IosSimulatorToolHandlerPrivate::requestDeviceInfo(const QString &deviceId,
 
 void IosSimulatorToolHandlerPrivate::stop(int errorCode)
 {
+
     if (process) {
-        if (isRunning()) {
-            process->terminate();
-            if (!process->waitForFinished(1000))
-                process->kill();
-        }
-        process->deleteLater();
-        process = nullptr;
+        QTC_ASSERT(process.unique(), process->kill(); qCDebug(toolHandlerLog)<<"App process is not unique.");
+        process.reset();
         appPId = -1;
         appLaunched = false;
     }
 
+    foreach (auto f, futureList) {
+        if (!f.isFinished())
+            f.cancel();
+    }
+
     toolExited(errorCode);
+    q->finished(q);
 }
 
 void IosSimulatorToolHandlerPrivate::debuggerStateChanged(Debugger::DebuggerState state)
@@ -822,6 +849,112 @@ void IosSimulatorToolHandlerPrivate::debuggerStateChanged(Debugger::DebuggerStat
     }
 }
 
+void IosSimulatorToolHandlerPrivate::installAppOnSimulator()
+{
+    auto onResponseAppInstall = [this](const SimulatorControl::ResponseData &response) {
+        if (!isResponseValid(response))
+            return;
+
+        if (response.success) {
+            isTransferringApp(bundlePath, deviceId, 100, 100, "");
+            didTransferApp(bundlePath, deviceId, IosToolHandler::Success);
+        } else {
+            errorMsg(IosToolHandler::tr("Application install on Simulator failed. %1")
+                     .arg(QString::fromLocal8Bit(response.commandOutput)));
+            didTransferApp(bundlePath, deviceId, IosToolHandler::Failure);
+        }
+        emit q->finished(q);
+    };
+
+    isTransferringApp(bundlePath, deviceId, 20, 100, "");
+    futureList << Utils::onResultReady(simCtl->installApp(deviceId, Utils::FileName::fromString(bundlePath)),
+                         onResponseAppInstall);
+}
+
+void IosSimulatorToolHandlerPrivate::spawnAppOnSimulator(const QStringList &extraArgs)
+{
+    Utils::FileName appBundle = Utils::FileName::fromString(bundlePath);
+    bool debugRun = runKind == IosToolHandler::DebugRun;
+    futureList << Utils::onResultReady(simCtl->spawnAppProcess(deviceId, appBundle, debugRun, extraArgs),
+                         std::bind(&IosSimulatorToolHandlerPrivate::onResponseAppSpawn, this, _1));
+}
+
+void IosSimulatorToolHandlerPrivate::launchAppOnSimulator()
+{
+    auto onResponseAppLaunch = [this](const SimulatorControl::ResponseData &response) {
+        if (!isResponseValid(response))
+            return;
+
+        if (response.pID != -1) {
+            appLaunched = true;
+            didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Success);
+        } else {
+            errorMsg(IosToolHandler::tr("Application launch on Simulator failed. %1")
+                     .arg(QString::fromLocal8Bit(response.commandOutput)));
+            didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Failure);
+            stop(-1);
+            q->finished(q);
+        }
+    };
+
+    if (appPId != -1) {
+        Utils::FileName appBundle = Utils::FileName::fromString(bundlePath);
+        futureList << Utils::onResultReady(simCtl->launchApp(deviceId,
+                                               SimulatorControl::bundleIdentifier(appBundle), appPId),
+                             onResponseAppLaunch);
+    } else {
+        errorMsg(IosToolHandler::tr("Spawning the Application process on Simulator failed. Spawning timed out."));
+        didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Failure);
+    }
+}
+
+bool IosSimulatorToolHandlerPrivate::isResponseValid(const SimulatorControl::ResponseData &responseData)
+{
+    if (responseData.simUdid.compare(deviceId) != 0) {
+        errorMsg(IosToolHandler::tr("Invalid simulator response. Device Id mismatch. "
+                                    "Device Id = %1 Response Id = %2")
+                 .arg(responseData.simUdid)
+                 .arg(deviceId));
+        emit q->finished(q);
+        return false;
+    }
+    return true;
+}
+
+void IosSimulatorToolHandlerPrivate::onResponseAppSpawn(const SimulatorControl::ResponseData &response)
+{
+    if (!isResponseValid(response))
+        return;
+
+    if (response.processInstance) {
+        QTC_ASSERT(!process || !isRunning(),
+                   qCDebug(toolHandlerLog) << "Spwaning app while an app instance exits.");
+        process = response.processInstance;
+        QObject::connect(process.get(), &QProcess::readyReadStandardOutput,
+                         std::bind(&IosSimulatorToolHandlerPrivate::simAppProcessHasData, this));
+        QObject::connect(process.get(), &QProcess::readyReadStandardError,
+                         std::bind(&IosSimulatorToolHandlerPrivate::simAppProcessHasErrorOutput, this));
+        QObject::connect(process.get(), static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
+                         std::bind(&IosSimulatorToolHandlerPrivate::simAppProcessFinished, this, _1, _2));
+        QObject::connect(process.get(), &QProcess::errorOccurred,
+                         std::bind(&IosSimulatorToolHandlerPrivate::simAppProcessError, this, _1));
+
+        appPId = response.pID;
+        gotInferiorPid(bundlePath, deviceId, appPId);
+
+        // For normal run. Launch app on Simulator.
+        // For debug run, wait for the debugger to attach and then launch the app.
+        if (runKind == IosToolHandler::NormalRun)
+            launchAppOnSimulator();
+    } else {
+        errorMsg(IosToolHandler::tr("Spawning the Application process on Simulator failed. %1")
+                 .arg(QString::fromLocal8Bit(response.commandOutput)));
+        didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Failure);
+        stop(-1);
+        q->finished(q);
+    }
+}
+
 void IosSimulatorToolHandlerPrivate::simAppProcessError(QProcess::ProcessError error)
 {
     errorMsg(IosToolHandler::tr("Simulator application process error %1").arg(error));
diff --git a/src/plugins/ios/simulatorcontrol.cpp b/src/plugins/ios/simulatorcontrol.cpp
index 6746c27d78..4af05f00e3 100644
--- a/src/plugins/ios/simulatorcontrol.cpp
+++ b/src/plugins/ios/simulatorcontrol.cpp
@@ -27,13 +27,16 @@
 #include "iossimulator.h"
 #include "iosconfigurations.h"
 
-#include <utils/runextensions.h>
+#include "utils/runextensions.h"
+#include "utils/qtcassert.h"
+#include "utils/synchronousprocess.h"
 
 #ifdef Q_OS_MAC
 #include <CoreFoundation/CoreFoundation.h>
 #endif
 
 #include <chrono>
+#include <memory>
 
 #include <QJsonArray>
 #include <QJsonDocument>
@@ -47,6 +50,8 @@
 #include <QUrl>
 #include <QWriteLocker>
 
+using namespace std;
+
 namespace {
 Q_LOGGING_CATEGORY(simulatorLog, "qtc.ios.simulator")
 }
@@ -55,29 +60,61 @@ namespace Ios {
 namespace Internal {
 
 static int COMMAND_TIMEOUT = 10000;
-static int SIMULATOR_TIMEOUT = 60000;
+static int SIMULATOR_START_TIMEOUT = 60000;
+static QString SIM_UDID_TAG = QStringLiteral("SimUdid");
 
-static bool checkForTimeout(const std::chrono::time_point< std::chrono::high_resolution_clock, std::chrono::nanoseconds> &start, int msecs = COMMAND_TIMEOUT)
+static bool checkForTimeout(const chrono::time_point< chrono::high_resolution_clock, chrono::nanoseconds> &start, int msecs = COMMAND_TIMEOUT)
 {
     bool timedOut = false;
-    auto end = std::chrono::high_resolution_clock::now();
-    if (std::chrono::duration_cast<std::chrono::milliseconds>(end-start).count() > msecs)
+    auto end = chrono::high_resolution_clock::now();
+    if (chrono::duration_cast<chrono::milliseconds>(end-start).count() > msecs)
         timedOut = true;
     return timedOut;
 }
 
+static bool runCommand(QString command, const QStringList &args, QByteArray *output)
+{
+    Utils::SynchronousProcess p;
+    Utils::SynchronousProcessResponse resp = p.runBlocking(command, args);
+    if (output)
+        *output = resp.allRawOutput();
+    return resp.result == Utils::SynchronousProcessResponse::Finished;
+}
+
 static QByteArray runSimCtlCommand(QStringList args)
 {
-    QProcess simCtlProcess;
+    QByteArray output;
     args.prepend(QStringLiteral("simctl"));
-    simCtlProcess.start(QStringLiteral("xcrun"), args, QProcess::ReadOnly);
-    if (!simCtlProcess.waitForFinished())
-        qCDebug(simulatorLog) << "simctl command failed." << simCtlProcess.errorString();
-    return simCtlProcess.readAll();
+    runCommand(QStringLiteral("xcrun"), args, &output);
+    return output;
+}
+
+static bool waitForProcessSpawn(qint64 processPId, QFutureInterface<SimulatorControl::ResponseData> &fi)
+{
+    bool success = false;
+    if (processPId != -1) {
+        // Wait for app to reach intruptible sleep state.
+        const QStringList args = {QStringLiteral("-p"), QString::number(processPId),
+                                  QStringLiteral("-o"), QStringLiteral("wq=")};
+        int wqCount = -1;
+        QByteArray wqStr;
+        auto begin = chrono::high_resolution_clock::now();
+        do {
+            if (fi.isCanceled() || !runCommand(QStringLiteral("ps"), args, &wqStr))
+                break;
+            bool validInt = false;
+            wqCount = wqStr.trimmed().toInt(&validInt);
+            if (!validInt)
+                wqCount = -1;
+        } while (wqCount < 0 && !checkForTimeout(begin));
+        success = wqCount >= 0;
+    } else {
+        qCDebug(simulatorLog) << "Wait for spawned failed. Invalid Process ID." << processPId;
+    }
+    return success;
 }
 
-class SimulatorControlPrivate :QObject {
-    Q_OBJECT
+class SimulatorControlPrivate {
 private:
     struct SimDeviceInfo {
         bool isBooted() const { return state.compare(QStringLiteral("Booted")) == 0; }
@@ -89,27 +126,40 @@ private:
         QString sdk;
     };
 
-    SimulatorControlPrivate(QObject *parent = nullptr);
+    SimulatorControlPrivate();
     ~SimulatorControlPrivate();
-    SimDeviceInfo deviceInfo(const QString &simUdid) const;
-    bool runCommand(QString command, const QStringList &args, QByteArray *output = nullptr);
 
-    QHash<QString, QProcess*> simulatorProcesses;
-    QReadWriteLock processDataLock;
-    QList<IosDeviceType> availableDevices;
+    static SimDeviceInfo deviceInfo(const QString &simUdid);
+    static QString bundleIdentifier(const Utils::FileName &bundlePath);
+    static QString bundleExecutable(const Utils::FileName &bundlePath);
+
+    void startSimulator(QFutureInterface<SimulatorControl::ResponseData> &fi, const QString &simUdid);
+    void installApp(QFutureInterface<SimulatorControl::ResponseData> &fi, const QString &simUdid,
+                    const Utils::FileName &bundlePath);
+    void spawnAppProcess(QFutureInterface<SimulatorControl::ResponseData> &fi, const QString &simUdid,
+                         const Utils::FileName &bundlePath, bool waitForDebugger, QStringList extraArgs,
+                         QThread *mainThread);
+    void launchApp(QFutureInterface<SimulatorControl::ResponseData> &fi, const QString &simUdid,
+                   const QString &bundleIdentifier, qint64 spawnedPID);
+
+    static QList<IosDeviceType> availableDevices;
     friend class SimulatorControl;
 };
 
-SimulatorControlPrivate *SimulatorControl::d = new SimulatorControlPrivate;
-
-SimulatorControl::SimulatorControl()
+SimulatorControl::SimulatorControl(QObject *parent) :
+    QObject(parent),
+    d(new SimulatorControlPrivate)
 {
+}
 
+SimulatorControl::~SimulatorControl()
+{
+    delete d;
 }
 
 QList<Ios::Internal::IosDeviceType> SimulatorControl::availableSimulators()
 {
-    return d->availableDevices;
+    return SimulatorControlPrivate::availableDevices;
 }
 
 static QList<IosDeviceType> getAvailableSimulators()
@@ -133,7 +183,7 @@ static QList<IosDeviceType> getAvailableSimulators()
                 }
             }
         }
-        std::stable_sort(availableDevices.begin(), availableDevices.end());
+        stable_sort(availableDevices.begin(), availableDevices.end());
     } else {
         qCDebug(simulatorLog) << "Error parsing json output from simctl. Output:" << output;
     }
@@ -142,92 +192,104 @@ static QList<IosDeviceType> getAvailableSimulators()
 
 void SimulatorControl::updateAvailableSimulators()
 {
-    QFuture<QList<IosDeviceType>> future = Utils::runAsync(getAvailableSimulators);
-    Utils::onResultReady(future, d, [](const QList<IosDeviceType> &devices) {
-        SimulatorControl::d->availableDevices = devices;
+    QFuture< QList<IosDeviceType> > future = Utils::runAsync(getAvailableSimulators);
+    Utils::onResultReady(future, [](const QList<IosDeviceType> &devices) {
+        SimulatorControlPrivate::availableDevices = devices;
     });
 }
 
-// Blocks until simulators reaches "Booted" state.
-bool SimulatorControl::startSimulator(const QString &simUdid)
+bool SimulatorControl::isSimulatorRunning(const QString &simUdid)
 {
-    QWriteLocker locker(&d->processDataLock);
-    bool simulatorRunning = isSimulatorRunning(simUdid);
-    if (!simulatorRunning && d->deviceInfo(simUdid).isAvailable()) {
-        // Simulator is not running but it's available. Start the simulator.
-        QProcess *p = new QProcess;
-        QObject::connect(p, static_cast<void(QProcess::*)(int)>(&QProcess::finished), [simUdid]() {
-            QWriteLocker locker(&d->processDataLock);
-            d->simulatorProcesses[simUdid]->deleteLater();
-            d->simulatorProcesses.remove(simUdid);
-        });
+    if (simUdid.isEmpty())
+        return false;
+    return SimulatorControlPrivate::deviceInfo(simUdid).isBooted();
+}
 
-        const QString cmd = IosConfigurations::developerPath().appendPath(QStringLiteral("/Applications/Simulator.app")).toString();
-        const QStringList args({QStringLiteral("--args"), QStringLiteral("-CurrentDeviceUDID"), simUdid});
-        p->start(cmd, args);
+QString SimulatorControl::bundleIdentifier(const Utils::FileName &bundlePath)
+{
+    return SimulatorControlPrivate::bundleIdentifier(bundlePath);
+}
 
-        if (p->waitForStarted()) {
-            d->simulatorProcesses[simUdid] = p;
-            // At this point the sim device exists, available and was not running.
-            // So the simulator is started and we'll wait for it to reach to a state
-            // where we can interact with it.
-            auto start = std::chrono::high_resolution_clock::now();
-            SimulatorControlPrivate::SimDeviceInfo info;
-            do {
-                info = d->deviceInfo(simUdid);
-            } while (!info.isBooted()
-                     && p->state() == QProcess::Running
-                     && !checkForTimeout(start, SIMULATOR_TIMEOUT));
-            simulatorRunning = info.isBooted();
-        } else {
-            qCDebug(simulatorLog) << "Error starting simulator." << p->errorString();
-            delete p;
-        }
-    }
-    return simulatorRunning;
+QString SimulatorControl::bundleExecutable(const Utils::FileName &bundlePath)
+{
+    return SimulatorControlPrivate::bundleExecutable(bundlePath);
 }
 
-bool SimulatorControl::isSimulatorRunning(const QString &simUdid)
+QFuture<SimulatorControl::ResponseData> SimulatorControl::startSimulator(const QString &simUdid)
 {
-    if (simUdid.isEmpty())
-        return false;
-    return d->deviceInfo(simUdid).isBooted();
+    return Utils::runAsync(&SimulatorControlPrivate::startSimulator, d, simUdid);
 }
 
-bool SimulatorControl::installApp(const QString &simUdid, const Utils::FileName &bundlePath, QByteArray &commandOutput)
+QFuture<SimulatorControl::ResponseData>
+SimulatorControl::installApp(const QString &simUdid, const Utils::FileName &bundlePath) const
 {
-    bool installed = false;
-    if (isSimulatorRunning(simUdid)) {
-        commandOutput = runSimCtlCommand(QStringList() << QStringLiteral("install") << simUdid << bundlePath.toString());
-        installed = commandOutput.isEmpty();
-    } else {
-        commandOutput = "Simulator device not running.";
-    }
-    return installed;
+    return Utils::runAsync(&SimulatorControlPrivate::installApp, d, simUdid, bundlePath);
+}
+
+QFuture<SimulatorControl::ResponseData>
+SimulatorControl::spawnAppProcess(const QString &simUdid, const Utils::FileName &bundlePath,
+                                  bool waitForDebugger, const QStringList &extraArgs) const
+{
+    return Utils::runAsync(&SimulatorControlPrivate::spawnAppProcess, d, simUdid, bundlePath,
+                           waitForDebugger, extraArgs, QThread::currentThread());
+}
+
+QFuture<SimulatorControl::ResponseData>
+SimulatorControl::launchApp(const QString &simUdid, const QString &bundleIdentifier,
+                            qint64 spawnedPID) const
+{
+    return Utils::runAsync(&SimulatorControlPrivate::launchApp, d, simUdid,
+                                    bundleIdentifier, spawnedPID);
+}
+
+QList<IosDeviceType> SimulatorControlPrivate::availableDevices;
+
+SimulatorControlPrivate::SimulatorControlPrivate()
+{
+}
+
+SimulatorControlPrivate::~SimulatorControlPrivate()
+{
+
 }
 
-qint64 SimulatorControl::launchApp(const QString &simUdid, const QString &bundleIdentifier, QByteArray* commandOutput)
+SimulatorControlPrivate::SimDeviceInfo SimulatorControlPrivate::deviceInfo(const QString &simUdid)
 {
-    qint64 pId = -1;
-    pId = -1;
-    if (!bundleIdentifier.isEmpty() && isSimulatorRunning(simUdid)) {
-        const QStringList args({QStringLiteral("launch"), simUdid , bundleIdentifier});
-        const QByteArray output = runSimCtlCommand(args);
-        const QByteArray pIdStr = output.trimmed().split(' ').last().trimmed();
-        bool validInt = false;
-        pId = pIdStr.toLongLong(&validInt);
-        if (!validInt) {
-            // Launch Failed.
-            qCDebug(simulatorLog) << "Launch app failed. Process id returned is not valid. PID =" << pIdStr;
-            pId = -1;
-            if (commandOutput)
-                *commandOutput = output;
+    SimDeviceInfo info;
+    bool found = false;
+    if (!simUdid.isEmpty()) {
+        const QByteArray output = runSimCtlCommand({QLatin1String("list"), QLatin1String("-j"), QLatin1String("devices")});
+        QJsonDocument doc = QJsonDocument::fromJson(output);
+        if (!doc.isNull()) {
+            const QJsonObject buildInfo = doc.object().value(QStringLiteral("devices")).toObject();
+            foreach (const QString &buildVersion, buildInfo.keys()) {
+                QJsonArray devices = buildInfo.value(buildVersion).toArray();
+                foreach (const QJsonValue device, devices) {
+                    QJsonObject deviceInfo = device.toObject();
+                    QString deviceUdid = deviceInfo.value(QStringLiteral("udid")).toString();
+                    if (deviceUdid.compare(simUdid) == 0) {
+                        found = true;
+                        info.name = deviceInfo.value(QStringLiteral("name")).toString();
+                        info.udid = deviceUdid;
+                        info.state = deviceInfo.value(QStringLiteral("state")).toString();
+                        info.sdk = buildVersion;
+                        info.availability = deviceInfo.value(QStringLiteral("availability")).toString();
+                        break;
+                    }
+                }
+                if (found)
+                    break;
+            }
+        } else {
+            qCDebug(simulatorLog) << "Cannot find device info. Error parsing json output from simctl. Output:" << output;
         }
+    } else {
+        qCDebug(simulatorLog) << "Cannot find device info. Invalid UDID.";
     }
-    return pId;
+    return info;
 }
 
-QString SimulatorControl::bundleIdentifier(const Utils::FileName &bundlePath)
+QString SimulatorControlPrivate::bundleIdentifier(const Utils::FileName &bundlePath)
 {
     QString bundleID;
 #ifdef Q_OS_MAC
@@ -247,7 +309,7 @@ QString SimulatorControl::bundleIdentifier(const Utils::FileName &bundlePath)
     return bundleID;
 }
 
-QString SimulatorControl::bundleExecutable(const Utils::FileName &bundlePath)
+QString SimulatorControlPrivate::bundleExecutable(const Utils::FileName &bundlePath)
 {
     QString executable;
 #ifdef Q_OS_MAC
@@ -266,160 +328,169 @@ QString SimulatorControl::bundleExecutable(const Utils::FileName &bundlePath)
     return executable;
 }
 
-SimulatorControlPrivate::SimulatorControlPrivate(QObject *parent):
-    QObject(parent),
-    processDataLock(QReadWriteLock::Recursive)
+void SimulatorControlPrivate::startSimulator(QFutureInterface<SimulatorControl::ResponseData> &fi,
+                                             const QString &simUdid)
 {
+    SimulatorControl::ResponseData response(simUdid);
+    if (deviceInfo(simUdid).isAvailable()) {
+        // Simulator is available.
+        const QString cmd = IosConfigurations::developerPath()
+                .appendPath(QStringLiteral("/Applications/Simulator.app/Contents/MacOS/Simulator"))
+                .toString();
+        const QStringList args({QStringLiteral("--args"), QStringLiteral("-CurrentDeviceUDID"), simUdid});
+
+        if (QProcess::startDetached(cmd, args)) {
+            if (fi.isCanceled())
+                return;
+            // At this point the sim device exists, available and was not running.
+            // So the simulator is started and we'll wait for it to reach to a state
+            // where we can interact with it.
+            auto start = chrono::high_resolution_clock::now();
+            SimulatorControlPrivate::SimDeviceInfo info;
+            do {
+                info = deviceInfo(simUdid);
+                if (fi.isCanceled())
+                    return;
+            } while (!info.isBooted()
+                     && !checkForTimeout(start, SIMULATOR_START_TIMEOUT));
+            if (info.isBooted()) {
+                response.success = true;
+            }
+        } else {
+            qCDebug(simulatorLog) << "Error starting simulator.";
+        }
+    }
+
+    if (!fi.isCanceled()) {
+        fi.reportResult(response);
+    }
 }
 
-SimulatorControlPrivate::~SimulatorControlPrivate()
+void SimulatorControlPrivate::installApp(QFutureInterface<SimulatorControl::ResponseData> &fi,
+                                         const QString &simUdid, const Utils::FileName &bundlePath)
 {
-
+    QTC_CHECK(bundlePath.exists());
+    QByteArray output = runSimCtlCommand({QStringLiteral("install"), simUdid, bundlePath.toString()});
+    SimulatorControl::ResponseData response(simUdid);
+    response.success = output.isEmpty();
+    response.commandOutput = output;
+
+    if (!fi.isCanceled()) {
+        fi.reportResult(response);
+    }
 }
 
-// The simctl spawns the process and returns the pId but the application process might not have started, at least in a state where you can interrupt it.
-// Use SimulatorControl::waitForProcessSpawn to be sure.
-QProcess *SimulatorControl::spawnAppProcess(const QString &simUdid, const Utils::FileName &bundlePath, qint64 &pId, bool waitForDebugger, const QStringList &extraArgs)
+void SimulatorControlPrivate::spawnAppProcess(QFutureInterface<SimulatorControl::ResponseData> &fi,
+                                              const QString &simUdid, const Utils::FileName &bundlePath,
+                                              bool waitForDebugger, QStringList extraArgs, QThread *mainThread)
 {
-    QProcess *simCtlProcess = nullptr;
-    if (isSimulatorRunning(simUdid)) {
-        QString bundleId = bundleIdentifier(bundlePath);
-        QString executableName = bundleExecutable(bundlePath);
-        QByteArray appPath = runSimCtlCommand(QStringList() << QStringLiteral("get_app_container") << simUdid << bundleId).trimmed();
-        if (!appPath.isEmpty() && !executableName.isEmpty()) {
-            // Spawn the app. The spawned app is started in suspended mode.
-            appPath.append('/' + executableName.toLocal8Bit());
-            simCtlProcess = new QProcess;
-            QStringList args;
-            args << QStringLiteral("simctl");
-            args << QStringLiteral("spawn");
-            if (waitForDebugger)
-                args << QStringLiteral("-w");
-            args << simUdid;
-            args << QString::fromLocal8Bit(appPath);
-            args << extraArgs;
-            simCtlProcess->start(QStringLiteral("xcrun"), args);
-            if (!simCtlProcess->waitForStarted()){
-                // Spawn command failed.
-                qCDebug(simulatorLog) << "Spawning the app failed." << simCtlProcess->errorString();
-                delete simCtlProcess;
-                simCtlProcess = nullptr;
+    SimulatorControl::ResponseData response(simUdid);
+
+    // Find the path of the installed app.
+    QString bundleId = bundleIdentifier(bundlePath);
+    QByteArray appContainer = runSimCtlCommand({QStringLiteral("get_app_container"), simUdid, bundleId});
+    QString appPath = QString::fromLocal8Bit(appContainer.trimmed());
+
+    if (fi.isCanceled())
+        return;
+
+    QString executableName = bundleExecutable(bundlePath);
+    if (!appPath.isEmpty() && !executableName.isEmpty()) {
+        appPath.append('/' + executableName);
+        QStringList args = {QStringLiteral("simctl"), QStringLiteral("spawn"), simUdid, appPath};
+        if (waitForDebugger)
+            args.insert(2, QStringLiteral("-w"));
+        args << extraArgs;
+
+        // Spawn the app. The spawned app is started in suspended mode.
+        shared_ptr<QProcess> simCtlProcess(new QProcess, [](QProcess *p) {
+            if (p->state() != QProcess::NotRunning) {
+                p->kill();
+                p->waitForFinished(COMMAND_TIMEOUT);
             }
-
-            // Find the process id of the the app process.
-            if (simCtlProcess) {
-                qint64 simctlPId = simCtlProcess->processId();
-                pId = -1;
-                QByteArray commandOutput;
-                QStringList pGrepArgs;
-                pGrepArgs << QStringLiteral("-f") << QString::fromLocal8Bit(appPath);
-                auto begin = std::chrono::high_resolution_clock::now();
-                // Find the pid of the spawned app.
-                while (pId == -1 && d->runCommand(QStringLiteral("pgrep"), pGrepArgs, &commandOutput)) {
-                    foreach (auto pidStr, commandOutput.trimmed().split('\n')) {
-                        qint64 parsedPId = pidStr.toLongLong();
-                        if (parsedPId != simctlPId)
-                            pId = parsedPId;
-                    }
-                    if (checkForTimeout(begin)) {
-                        qCDebug(simulatorLog) << "Spawning the app failed. Process timed out";
-                        break;
-                    }
+            delete p;
+        });
+        simCtlProcess->start(QStringLiteral("xcrun"), args);
+        if (simCtlProcess->waitForStarted()) {
+            if (fi.isCanceled())
+                return;
+            // Find the process id of the spawned app.
+            qint64 simctlPId = simCtlProcess->processId();
+            QByteArray commandOutput;
+            const QStringList pGrepArgs = {QStringLiteral("-f"), appPath};
+            auto begin = chrono::high_resolution_clock::now();
+            int processID = -1;
+            while (processID == -1 && runCommand(QStringLiteral("pgrep"), pGrepArgs, &commandOutput)) {
+                if (fi.isCanceled()) {
+                    qCDebug(simulatorLog) <<"Spawning the app failed. Future cancelled.";
+                    return;
+                }
+                foreach (auto pidStr, commandOutput.trimmed().split('\n')) {
+                    qint64 parsedPId = pidStr.toLongLong();
+                    if (parsedPId != simctlPId)
+                        processID = parsedPId;
+                }
+                if (checkForTimeout(begin)) {
+                    qCDebug(simulatorLog) << "Spawning the app failed. Process timed out";
+                    break;
                 }
             }
 
-            if (pId == -1) {
-                // App process id can't be found.
-                qCDebug(simulatorLog) << "Spawning the app failed. PID not found.";
-                delete simCtlProcess;
-                simCtlProcess = nullptr;
+            if (processID == -1) {
+                qCDebug(simulatorLog) << "Spawning the app failed. App PID not found.";
+                simCtlProcess->waitForReadyRead(COMMAND_TIMEOUT);
+                response.commandOutput = simCtlProcess->readAllStandardError();
+            } else {
+                response.processInstance = simCtlProcess;
+                response.processInstance->moveToThread(mainThread);
+                response.pID = processID;
+                response.success = true;
             }
         } else {
-            qCDebug(simulatorLog) << "Spawning the app failed. Check installed app." << appPath;
+            qCDebug(simulatorLog) << "Spawning the app failed." << simCtlProcess->errorString();
+            response.commandOutput = simCtlProcess->errorString().toLatin1();
         }
     } else {
-        qCDebug(simulatorLog) << "Spawning the app failed. Simulator not running." << simUdid;
+        qCDebug(simulatorLog) << "Spawning the app failed. Check installed app." << appPath;
     }
-    return simCtlProcess;
-}
 
-bool SimulatorControl::waitForProcessSpawn(qint64 processPId)
-{
-    bool success = true;
-    if (processPId != -1) {
-        // Wait for app to reach intruptible sleep state.
-        QByteArray wqStr;
-        QStringList args;
-        int wqCount = -1;
-        args << QStringLiteral("-p") << QString::number(processPId) << QStringLiteral("-o") << QStringLiteral("wq=");
-        auto begin = std::chrono::high_resolution_clock::now();
-        do {
-            if (!d->runCommand(QStringLiteral("ps"), args, &wqStr)) {
-                success = false;
-                break;
-            }
-            bool validInt = false;
-            wqCount = wqStr.toInt(&validInt);
-            if (!validInt) {
-                wqCount = -1;
-            }
-        } while (wqCount < 0 && !checkForTimeout(begin));
-        success = wqCount >= 0;
-    } else {
-        qCDebug(simulatorLog) << "Wait for spawned failed. Invalid Process ID." << processPId;
+    if (!fi.isCanceled()) {
+        fi.reportResult(response);
     }
-    return success;
 }
 
-SimulatorControlPrivate::SimDeviceInfo SimulatorControlPrivate::deviceInfo(const QString &simUdid) const
+void SimulatorControlPrivate::launchApp(QFutureInterface<SimulatorControl::ResponseData> &fi,
+                                        const QString &simUdid, const QString &bundleIdentifier,
+                                        qint64 spawnedPID)
 {
-    SimDeviceInfo info;
-    bool found = false;
-    if (!simUdid.isEmpty()) {
-        // It might happend that the simulator is not started by SimControl.
-        // Check of intances started externally.
-        const QByteArray output = runSimCtlCommand({QLatin1String("list"), QLatin1String("-j"), QLatin1String("devices")});
-        QJsonDocument doc = QJsonDocument::fromJson(output);
-        if (!doc.isNull()) {
-            const QJsonObject buildInfo = doc.object().value(QStringLiteral("devices")).toObject();
-            foreach (const QString &buildVersion, buildInfo.keys()) {
-                QJsonArray devices = buildInfo.value(buildVersion).toArray();
-                foreach (const QJsonValue device, devices) {
-                    QJsonObject deviceInfo = device.toObject();
-                    QString deviceUdid = deviceInfo.value(QStringLiteral("udid")).toString();
-                    if (deviceUdid.compare(simUdid) == 0) {
-                        found = true;
-                        info.name = deviceInfo.value(QStringLiteral("name")).toString();
-                        info.udid = deviceUdid;
-                        info.state = deviceInfo.value(QStringLiteral("state")).toString();
-                        info.sdk = buildVersion;
-                        info.availability = deviceInfo.value(QStringLiteral("availability")).toString();
-                        break;
-                    }
-                }
-                if (found)
-                    break;
+    SimulatorControl::ResponseData response(simUdid);
+    if (!bundleIdentifier.isEmpty()) {
+        bool processSpawned = true;
+        // Wait for the process to be spawned properly before launching app.
+        if (spawnedPID > -1)
+            processSpawned = waitForProcessSpawn(spawnedPID, fi);
+
+        if (fi.isCanceled())
+            return;
+
+        if (processSpawned) {
+            const QStringList args({QStringLiteral("launch"), simUdid , bundleIdentifier});
+            response.commandOutput = runSimCtlCommand(args);
+            const QByteArray pIdStr = response.commandOutput.trimmed().split(' ').last().trimmed();
+            bool validInt = false;
+            response.pID = pIdStr.toLongLong(&validInt);
+            if (!validInt) {
+                // Launch Failed.
+                qCDebug(simulatorLog) << "Launch app failed. Process id returned is not valid. PID =" << pIdStr;
+                response.pID = -1;
             }
-        } else {
-            qCDebug(simulatorLog) << "Cannot find device info. Error parsing json output from simctl. Output:" << output;
         }
-    } else {
-        qCDebug(simulatorLog) << "Cannot find device info. Invalid UDID.";
     }
-    return info;
-}
 
-bool SimulatorControlPrivate::runCommand(QString command, const QStringList &args, QByteArray *output)
-{
-    bool success = false;
-    QProcess process;
-    process.start(command, args);
-    success = process.waitForFinished();
-    if (output)
-        *output = process.readAll().trimmed();
-    return success;
+    if (!fi.isCanceled()) {
+        fi.reportResult(response);
+    }
 }
 
 } // namespace Internal
 } // namespace Ios
-#include "simulatorcontrol.moc"
diff --git a/src/plugins/ios/simulatorcontrol.h b/src/plugins/ios/simulatorcontrol.h
index 1a674d644e..4680350c48 100644
--- a/src/plugins/ios/simulatorcontrol.h
+++ b/src/plugins/ios/simulatorcontrol.h
@@ -22,10 +22,10 @@
 ** be met: https://www.gnu.org/licenses/gpl-3.0.html.
 **
 ****************************************************************************/
-#ifndef SIMULATORCONTROL_H
-#define SIMULATORCONTROL_H
+#pragma once
 
-#include <QHash>
+#include <QObject>
+#include <QFuture>
 #include "utils/fileutils.h"
 
 QT_BEGIN_NAMESPACE
@@ -38,29 +38,44 @@ namespace Internal {
 class IosDeviceType;
 class SimulatorControlPrivate;
 
-class SimulatorControl
+class SimulatorControl : public QObject
 {
-    explicit SimulatorControl();
+    Q_OBJECT
+public:
+    struct ResponseData {
+        ResponseData(const QString & udid):
+            simUdid(udid) { }
+
+        QString simUdid;
+        bool success = false;
+        qint64 pID = -1;
+        QByteArray commandOutput = "";
+        // For response type APP_SPAWN, the processInstance represents the control process of the spwaned app
+        // For other response types its null.
+        std::shared_ptr<QProcess> processInstance;
+    };
+
+public:
+    explicit SimulatorControl(QObject* parent = nullptr);
+    ~SimulatorControl();
 
 public:
     static QList<IosDeviceType> availableSimulators();
     static void updateAvailableSimulators();
-
-    static bool startSimulator(const QString &simUdid);
     static bool isSimulatorRunning(const QString &simUdid);
-
-    static bool installApp(const QString &simUdid, const Utils::FileName &bundlePath, QByteArray &commandOutput);
-    static QProcess* spawnAppProcess(const QString &simUdid, const Utils::FileName &bundlePath, qint64 &pId,
-                                     bool waitForDebugger, const QStringList &extraArgs);
-
-    static qint64 launchApp(const QString &simUdid, const QString &bundleIdentifier, QByteArray *commandOutput = nullptr);
     static QString bundleIdentifier(const Utils::FileName &bundlePath);
     static QString bundleExecutable(const Utils::FileName &bundlePath);
-    static bool waitForProcessSpawn(qint64 processPId);
+
+public:
+    QFuture<ResponseData> startSimulator(const QString &simUdid);
+    QFuture<ResponseData> installApp(const QString &simUdid, const Utils::FileName &bundlePath) const;
+    QFuture<ResponseData> spawnAppProcess(const QString &simUdid, const Utils::FileName &bundlePath,
+                                          bool waitForDebugger, const QStringList &extraArgs) const;
+    QFuture<ResponseData> launchApp(const QString &simUdid, const QString &bundleIdentifier,
+                                    qint64 spawnedPID = -1) const;
 
 private:
-    static SimulatorControlPrivate *d;
+    SimulatorControlPrivate *d;
 };
 } // namespace Internal
 } // namespace Ios
-#endif // SIMULATORCONTROL_H