Use qtcbuildhelper for starting the build process on Windows.

Task-number: QTCREATORBUG-4558

Change-Id: Ib6f5be80f034135bbd8c45a22e223e758cc7e7b1
Reviewed-on: http://codereview.qt.nokia.com/2555Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@nokia.com>

src/libs/utils/qtcprocess.cpp

@@ -36,6 +36,10 @@
 #include <QtCore/QDir>
 #include <QtCore/QDebug>
 
+#ifdef Q_OS_WIN
+#include <qt_windows.h>
+#endif
+
 using namespace Utils;
 
 /*!
@@ -663,6 +667,8 @@ void QtcProcess::start()
     QString arguments;
     prepareCommand(m_command, m_arguments, &command, &arguments, &env, &workDir);
     setNativeArguments(arguments);
+    if (m_useCtrlCStub)
+        command.prepend(QLatin1Char('"') + QCoreApplication::applicationDirPath() + QLatin1String("/qtcbuildhelper.exe\" "));
     QProcess::start(command, QStringList());
 #else
     QStringList arguments;
@@ -677,6 +683,30 @@ void QtcProcess::start()
 #endif
 }
 
+#ifdef Q_OS_WIN
+BOOL CALLBACK sendShutDownMessageToAllWindowsOfProcess_enumWnd(HWND hwnd, LPARAM lParam)
+{
+    static UINT uiShutDownMessage = RegisterWindowMessage(L"qtcbuildhelper_shutdown");
+    DWORD dwProcessID;
+    GetWindowThreadProcessId(hwnd, &dwProcessID);
+    if (lParam == dwProcessID) {
+        SendNotifyMessage(hwnd, uiShutDownMessage, 0, 0);
+        return FALSE;
+    }
+    return TRUE;
+}
+#endif
+
+void QtcProcess::terminate()
+{
+#ifdef Q_OS_WIN
+    if (m_useCtrlCStub)
+        EnumWindows(sendShutDownMessageToAllWindowsOfProcess_enumWnd, pid()->dwProcessId);
+    else
+#endif
+    QProcess::terminate();
+}
+
 #ifdef Q_OS_WIN
 
 // This function assumes that the resulting string will be quoted.

src/libs/utils/qtcprocess.h

@@ -47,12 +47,18 @@ class QTCREATOR_UTILS_EXPORT QtcProcess : public QProcess
     Q_OBJECT
 
 public:
-    QtcProcess(QObject *parent = 0) : QProcess(parent), m_haveEnv(false) {}
+    QtcProcess(QObject *parent = 0)
+      : QProcess(parent),
+        m_haveEnv(false),
+        m_useCtrlCStub(false)
+        {}
     void setEnvironment(const Environment &env)
         { m_environment = env; m_haveEnv = true; }
     void setCommand(const QString &command, const QString &arguments)
         { m_command = command; m_arguments = arguments; }
+    void setUseCtrlCStub(bool enabled) { m_useCtrlCStub = enabled; }
     void start();
+    void terminate();
 
     enum SplitError {
         SplitOk = 0, //! All went just fine
@@ -142,6 +148,7 @@ private:
     QString m_arguments;
     Environment m_environment;
     bool m_haveEnv;
+    bool m_useCtrlCStub;
 };
 
 }

src/libs/utils/utils.pro

@@ -14,3 +14,5 @@ HEADERS += \
 
 SOURCES += \
     proxyaction.cpp
+
+win32: LIBS += user32.lib

src/plugins/projectexplorer/abstractprocessstep.cpp

@@ -189,6 +189,7 @@ void AbstractProcessStep::run(QFutureInterface<bool> &fi)
         wd.mkpath(wd.absolutePath());
 
     m_process = new Utils::QtcProcess();
+    m_process->setUseCtrlCStub(true);
     m_process->setWorkingDirectory(wd.absolutePath());
     m_process->setEnvironment(m_param.environment());