QML timing utility

1 files changed, 133 insertions, 0 deletions

diff --git a/tests/benchmarks/declarative/qmltime/qmltime.cpp b/tests/benchmarks/declarative/qmltime/qmltime.cpp
new file mode 100644
index 0000000..918c197
--- /dev/null
+++ b/tests/benchmarks/declarative/qmltime/qmltime.cpp
@@ -0,0 +1,133 @@
+#include <QmlEngine>
+#include <QmlComponent>
+#include <QDebug>
+#include <QApplication>
+#include <QTime>
+#include <QmlContext>
+
+class Timer : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QmlComponent *component READ component WRITE setComponent);
+
+public:
+    Timer();
+
+    QmlComponent *component() const;
+    void setComponent(QmlComponent *);
+
+    static Timer *timerInstance();
+
+    void run(uint);
+
+private:
+    QmlComponent *m_component;
+    static Timer *m_timer;
+};
+QML_DECLARE_TYPE(Timer);
+QML_DEFINE_TYPE(QmlTime, 1, 0, Timer, Timer);
+
+Timer *Timer::m_timer = 0;
+
+Timer::Timer()
+: m_component(0)
+{
+    if (m_timer)
+        qWarning("Timer: Timer already registered");
+    m_timer = this;
+}
+
+QmlComponent *Timer::component() const
+{
+    return m_component;
+}
+
+void Timer::setComponent(QmlComponent *c)
+{
+    m_component = c;
+}
+
+Timer *Timer::timerInstance()
+{
+    return m_timer;
+}
+
+void Timer::run(uint iterations)
+{
+    QmlContext context(qmlContext(this));
+
+    QTime t;
+    t.start();
+    for (uint ii = 0; ii < iterations; ++ii) {
+        QObject *o = m_component->create(&context);
+        delete o;
+    }
+
+    int e = t.elapsed();
+
+    qWarning() << "Total:" << e << "ms, Per iteration:" << qreal(e) / qreal(iterations) << "ms";
+
+}
+
+void usage(const char *name)
+{
+    qWarning("Usage: %s [-iterations <count>] <qml file>", name);
+    exit(-1);
+}
+
+int main(int argc, char ** argv)
+{
+    QApplication app(argc, argv);
+
+    uint iterations = 1024;
+    QString filename;
+
+    for (int ii = 1; ii < argc; ++ii) {
+        QByteArray arg(argv[ii]);
+
+        if (arg == "-iterations") {
+            if (ii + 1 < argc) {
+                ++ii;
+                QByteArray its(argv[ii]);
+                bool ok = false;
+                iterations = its.toUInt(&ok);
+                if (!ok)
+                    usage(argv[0]);
+            } else {
+                usage(argv[0]);
+            }
+        } else {
+            filename = QLatin1String(argv[ii]);
+        }
+    }
+
+    QmlEngine engine;
+    QmlComponent component(&engine, filename);
+    if (component.isError()) {
+        qWarning() << component.errors();
+        return -1;
+    }
+
+    QObject *obj = component.create();
+    if (!obj) {
+        qWarning() << component.errors();
+        return -1;
+    }
+
+    Timer *timer = Timer::timerInstance();
+    if (!timer) {
+        qWarning() << "A Tester.Timer instance is required.";
+        return -1;
+    }
+
+    if (!timer->component()) {
+        qWarning() << "The timer has no component";
+        return -1;
+    }
+
+    timer->run(iterations);
+
+    return 0;
+}
+
+#include "tst_delegate.moc"