1 files changed, 111 insertions, 0 deletions
diff --git a/doc/src/snippets/qelapsedtimer/main.cpp b/doc/src/snippets/qelapsedtimer/main.cpp
new file mode 100644
index 0000000000..3e5b520f57
--- /dev/null
+++ b/doc/src/snippets/qelapsedtimer/main.cpp
@@ -0,0 +1,111 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtNetwork module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <QtCore>
+
+void slowOperation1()
+{
+    static char buf[256];
+    for (int i = 0; i < (1<<20); ++i)
+        buf[i % sizeof buf] = i;
+}
+
+void slowOperation2(int) { slowOperation1(); }
+
+void startExample()
+{
+//![0]
+    QElapsedTimer timer;
+    timer.start();
+
+    slowOperation1();
+
+    qDebug() << "The slow operation took" << timer.elapsed() << "milliseconds";
+//![0]
+}
+
+//![1]
+void executeSlowOperations(int timeout)
+{
+    QElapsedTimer timer;
+    timer.start();
+    slowOperation1();
+
+    int remainingTime = timeout - timer.elapsed();
+    if (remainingTime > 0)
+        slowOperation2(remainingTime);
+}
+//![1]
+
+//![2]
+void executeOperationsForTime(int ms)
+{
+    QElapsedTimer timer;
+    timer.start();
+
+    while (!timer.hasExpired(ms))
+        slowOperation1();
+}
+//![2]
+
+int restartExample()
+{
+//![3]
+    QElapsedTimer timer;
+
+    int count = 1;
+    timer.start();
+    do {
+        count *= 2;
+        slowOperation2(count);
+    } while (timer.restart() < 250);
+
+    return count;
+//![3]
+}
+
+int main(int argc, char **argv)
+{
+    QCoreApplication app(argc, argv);
+
+    startExample();
+    restartExample();
+    executeSlowOperations(5);
+    executeOperationsForTime(5);
+}