iOS: Fix run without deploy on iOS simulator

Task-number: QTCREATORBUG-18107
Change-Id: Ie847cdab672ff2df7af0c2fee742901de0783861
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/ios/iostoolhandler.cpp

@@ -848,13 +848,12 @@ void IosSimulatorToolHandlerPrivate::requestRunApp(const QString &appBundlePath,
     }
 
     auto onSimulatorStart = [this, extraArgs] (const SimulatorControl::ResponseData &response) {
-        if (isResponseValid(response))
+        if (!isResponseValid(response))
             return;
         if (response.success) {
             launchAppOnSimulator(extraArgs);
         } else {
-            errorMsg(IosToolHandler::tr("Application launch on Simulator failed. Simulator not running.")
-                     .arg(bundlePath));
+            errorMsg(IosToolHandler::tr("Application launch on Simulator failed. Simulator not running."));
             didStartApp(bundlePath, deviceId, Ios::IosToolHandler::Failure);
         }
     };

src/plugins/ios/simulatorcontrol.cpp

@@ -398,7 +398,29 @@ void SimulatorControlPrivate::startSimulator(QFutureInterface<SimulatorControl::
 {
     SimulatorControl::ResponseData response(simUdid);
     SimulatorInfo simInfo = deviceInfo(simUdid);
-    if (simInfo.available && simInfo.isShutdown()) {
+
+    if (!simInfo.available) {
+        qCDebug(simulatorLog) << "Simulator device is not available." << simUdid;
+        return;
+    }
+
+    // Shutting down state checks are for the case when simulator start is called within a short
+    // interval of closing the previous interval of the simulator. We wait untill the shutdown
+    // process is complete.
+    auto start = chrono::high_resolution_clock::now();
+    while (simInfo.isShuttingDown() && !checkForTimeout(start, SIMULATOR_START_TIMEOUT)) {
+        // Wait till the simulator shuts down, if doing so.
+        QThread::currentThread()->msleep(100);
+        simInfo = deviceInfo(simUdid);
+    }
+
+    if (simInfo.isShuttingDown()) {
+        qCDebug(simulatorLog) << "Can not start Simulator device. "
+                              << "Previous instance taking too long to shutdown." << simInfo;
+        return;
+    }
+
+    if (simInfo.isShutdown()) {
         const QString cmd = IosConfigurations::developerPath()
                 .appendPath(QStringLiteral("/Applications/Simulator.app/Contents/MacOS/Simulator"))
                 .toString();
@@ -410,7 +432,7 @@ void SimulatorControlPrivate::startSimulator(QFutureInterface<SimulatorControl::
             // 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();
+            start = chrono::high_resolution_clock::now();
             SimulatorInfo info;
             do {
                 info = deviceInfo(simUdid);
@@ -424,6 +446,9 @@ void SimulatorControlPrivate::startSimulator(QFutureInterface<SimulatorControl::
         } else {
             qCDebug(simulatorLog) << "Error starting simulator.";
         }
+    } else {
+       qCDebug(simulatorLog) << "Can not start Simulator device. Simulator not in shutdown state."
+                             << simInfo;
     }
 
     if (!fi.isCanceled()) {
@@ -541,5 +566,13 @@ void SimulatorControlPrivate::takeSceenshot(QFutureInterface<SimulatorControl::R
         fi.reportResult(response);
 }
 
+QDebug &operator<<(QDebug &stream, const SimulatorInfo &info)
+{
+    stream << "Name: " << info.name << "UDID: " << info.identifier
+           << "Availability: " << info.available << "State: " << info.state
+           << "Runtime: " << info.runtimeName;
+    return stream;
+}
+
 } // namespace Internal
 } // namespace Ios

src/plugins/ios/simulatorcontrol.h

@@ -27,7 +27,7 @@
 #include <QObject>
 #include <QFuture>
 #include "utils/fileutils.h"
-
+#include <QDebug>
 #include <memory>
 
 QT_BEGIN_NAMESPACE
@@ -50,10 +50,14 @@ public:
     }
 };
 
-class SimulatorInfo : public SimulatorEntity {
+class SimulatorInfo : public SimulatorEntity
+{
+    friend QDebug &operator<<(QDebug &, const SimulatorInfo &info);
+
 public:
     bool isBooted() const { return state.compare(QStringLiteral("Booted")) == 0; }
     bool isShutdown() const { return state.compare(QStringLiteral("Shutdown")) == 0; }
+    bool isShuttingDown() const { return state == "Shutting Down"; }
     bool available;
     QString state;
     QString runtimeName;