Android: Rewrite waitForAvd()

Now takes a QFutureInterface to enable canceling and beautify the code
by splitting it up.

Change-Id: Ifedf19c3ad1a37a9b7cb6b7db8ec799ceebc5392
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>

src/plugins/android/androidconfigurations.cpp

@@ -659,32 +659,45 @@ QString AndroidConfigurations::findAvd(int apiLevel, const QString &cpuAbi) cons
     return QString();
 }
 
-QString AndroidConfigurations::waitForAvd(int apiLevel, const QString &cpuAbi) const
+bool AndroidConfigurations::isConnected(const QString &serialNumber) const
 {
-    // we cannot use adb -e wait-for-device, since that doesn't work if a emulator is already running
+    QVector<AndroidDeviceInfo> devices = connectedDevices();
+    foreach (AndroidDeviceInfo device, devices) {
+        if (device.serialNumber == serialNumber)
+            return true;
+    }
+    return false;
+}
+
+bool AndroidConfigurations::waitForBooted(const QString &serialNumber, const QFutureInterface<bool> &fi) const
+{
+    // found a serial number, now wait until it's done booting...
+    for (int i = 0; i < 60; ++i) {
+        if (fi.isCanceled())
+            return false;
+        if (hasFinishedBooting(serialNumber)) {
+            return true;
+        } else {
+            Utils::sleep(2000);
+            if (!isConnected(serialNumber)) // device was disconnected
+                return false;
+        }
+    }
+    return false;
+}
 
-    // 15 rounds of 8s sleeping, a minute for the avd to start
+QString AndroidConfigurations::waitForAvd(int apiLevel, const QString &cpuAbi, const QFutureInterface<bool> &fi) const
+{
+    // we cannot use adb -e wait-for-device, since that doesn't work if a emulator is already running
+    // 60 rounds of 2s sleeping, two minutes for the avd to start
     QString serialNumber;
-    for (int i = 0; i < 15; ++i) {
-        QVector<AndroidDeviceInfo> devices = connectedDevices();
-        foreach (AndroidDeviceInfo device, devices) {
-            if (!device.serialNumber.startsWith(QLatin1String("emulator")))
-                continue;
-            if (!device.cpuAbi.contains(cpuAbi))
-                continue;
-            if (device.sdk != apiLevel)
-                continue;
-            serialNumber = device.serialNumber;
-            // found a serial number, now wait until it's done booting...
-            for (int i = 0; i < 15; ++i) {
-                if (hasFinishedBooting(serialNumber))
-                    return serialNumber;
-                else
-                    Utils::sleep(8000);
-            }
+    for (int i = 0; i < 60; ++i) {
+        if (fi.isCanceled())
             return QString();
-        }
-        Utils::sleep(8000);
+        serialNumber = findAvd(apiLevel, cpuAbi);
+        if (!serialNumber.isEmpty())
+            return waitForBooted(serialNumber, fi) ?  serialNumber : QString();
+        Utils::sleep(2000);
     }
     return QString();
 }

src/plugins/android/androidconfigurations.h

@@ -36,6 +36,7 @@
 #include <QVector>
 #include <QHash>
 #include <QMap>
+#include <QFutureInterface>
 #include <projectexplorer/abi.h>
 #include <utils/fileutils.h>
 
@@ -107,7 +108,8 @@ public:
     QString startAVD(const QString &name, int apiLevel, QString cpuAbi) const;
     bool startAVDAsync(const QString &avdName) const;
     QString findAvd(int apiLevel, const QString &cpuAbi) const;
-    QString waitForAvd(int apiLevel, const QString &cpuAbi) const;
+    QString waitForAvd(int apiLevel, const QString &cpuAbi, const QFutureInterface<bool> &fi = QFutureInterface<bool>()) const;
+    // special version for AndroidDeployQt::run
     QString bestNdkPlatformMatch(const QString &targetAPI) const;
 
     QStringList makeExtraSearchDirectories() const;
@@ -121,6 +123,8 @@ public:
 
     QString getProductModel(const QString &device) const;
     bool hasFinishedBooting(const QString &device) const;
+    bool waitForBooted(const QString &serialNumber, const QFutureInterface<bool> &fi) const;
+    bool isConnected(const QString &serialNumber) const;
 
     AndroidDeviceInfo showDeviceDialog(ProjectExplorer::Project *project, int apiLevel, const QString &abi);
     void setDefaultDevice(ProjectExplorer::Project *project, const QString &abi, const QString &serialNumber); // serial number or avd name

src/plugins/android/androiddeployqtstep.cpp

@@ -295,7 +295,7 @@ bool AndroidDeployQtStep::init()
 void AndroidDeployQtStep::run(QFutureInterface<bool> &fi)
 {
     if (!m_avdName.isEmpty()) {
-        QString serialNumber = AndroidConfigurations::instance().waitForAvd(m_deviceAPILevel, m_targetArch);
+        QString serialNumber = AndroidConfigurations::instance().waitForAvd(m_deviceAPILevel, m_targetArch, fi);
         if (serialNumber.isEmpty()) {
             fi.reportResult(false);
             return;