C++ (Cpp) runningUnderDebugger示例

示例#1

文件： qxcbintegration.cpp 项目： CodeDJ/qt5-hidpi

QXcbIntegration::QXcbIntegration(const QStringList &parameters, int &argc, char **argv)
    : m_services(new QGenericUnixServices)
    , m_instanceName(0)
{
#ifdef XCB_USE_XLIB
    XInitThreads();
#endif
    m_nativeInterface.reset(new QXcbNativeInterface);

    bool canGrab = true;
    #if defined(QT_DEBUG) && defined(Q_OS_LINUX)
    canGrab = !runningUnderDebugger();
    #endif
    static bool canNotGrabEnv = qgetenv("QT_XCB_NO_GRAB_SERVER").length();
    if (canNotGrabEnv)
        canGrab = false;

    // Parse arguments
    const char *displayName = 0;
    if (argc) {
        int j = 1;
        for (int i = 1; i < argc; i++) {
            char *arg = argv[i];
            if (arg) {
                if (!strcmp(arg, "-display") && i < argc - 1) {
                    displayName = argv[++i];
                    arg = 0;
                } else if (!strcmp(arg, "-name") && i < argc - 1) {
                    m_instanceName = argv[++i];
                    arg = 0;
                }
            }
            if (arg)
                argv[j++] = arg;
        }
        argc = j;
    } // argc

    m_connections << new QXcbConnection(m_nativeInterface.data(), canGrab, displayName);

    for (int i = 0; i < parameters.size() - 1; i += 2) {
#ifdef Q_XCB_DEBUG
        qDebug() << "QXcbIntegration: Connecting to additional display: " << parameters.at(i) << parameters.at(i+1);
#endif
        QString display = parameters.at(i) + ':' + parameters.at(i+1);
        m_connections << new QXcbConnection(m_nativeInterface.data(), display.toLatin1().constData());
    }

    m_fontDatabase.reset(new QGenericUnixFontDatabase());
}

示例#2

文件： qxcbintegration.cpp 项目： OniLink/Qt5-Rehost

QXcbIntegration::QXcbIntegration(const QStringList &parameters, int &argc, char **argv)
    : m_services(new QGenericUnixServices)
    , m_instanceName(0)
    , m_canGrab(true)
    , m_defaultVisualId(UINT_MAX)
{
    m_instance = this;

    qRegisterMetaType<QXcbWindow*>();
#ifdef XCB_USE_XLIB
    XInitThreads();
#endif
    m_nativeInterface.reset(new QXcbNativeInterface);

    // Parse arguments
    const char *displayName = 0;
    bool noGrabArg = false;
    bool doGrabArg = false;
    if (argc) {
        int j = 1;
        for (int i = 1; i < argc; i++) {
            QByteArray arg(argv[i]);
            if (arg.startsWith("--"))
                arg.remove(0, 1);
            if (arg == "-display" && i < argc - 1)
                displayName = argv[++i];
            else if (arg == "-name" && i < argc - 1)
                m_instanceName = argv[++i];
            else if (arg == "-nograb")
                noGrabArg = true;
            else if (arg == "-dograb")
                doGrabArg = true;
            else if (arg == "-visual" && i < argc - 1) {
                bool ok = false;
                m_defaultVisualId = QByteArray(argv[++i]).toUInt(&ok, 0);
                if (!ok)
                    m_defaultVisualId = UINT_MAX;
            }
            else
                argv[j++] = argv[i];
        }
        argc = j;
    } // argc

    bool underDebugger = runningUnderDebugger();
    if (noGrabArg && doGrabArg && underDebugger) {
        qWarning() << "Both -nograb and -dograb command line arguments specified. Please pick one. -nograb takes prcedence";
        doGrabArg = false;
    }

#if defined(QT_DEBUG)
    if (!noGrabArg && !doGrabArg && underDebugger) {
        qDebug("Qt: gdb: -nograb added to command-line options.\n"
               "\t Use the -dograb option to enforce grabbing.");
    }
#endif
    m_canGrab = (!underDebugger && !noGrabArg) || (underDebugger && doGrabArg);

    static bool canNotGrabEnv = qEnvironmentVariableIsSet("QT_XCB_NO_GRAB_SERVER");
    if (canNotGrabEnv)
        m_canGrab = false;

    const int numParameters = parameters.size();
    m_connections.reserve(1 + numParameters / 2);
    m_connections << new QXcbConnection(m_nativeInterface.data(), m_canGrab, m_defaultVisualId, displayName);

    for (int i = 0; i < numParameters - 1; i += 2) {
        qCDebug(lcQpaScreen) << "connecting to additional display: " << parameters.at(i) << parameters.at(i+1);
        QString display = parameters.at(i) + QLatin1Char(':') + parameters.at(i+1);
        m_connections << new QXcbConnection(m_nativeInterface.data(), m_canGrab, m_defaultVisualId, display.toLatin1().constData());
    }

    m_fontDatabase.reset(new QGenericUnixFontDatabase());
}