[Pkg-owncloud-commits] [owncloud-client] 234/333: Add a stopwatch utility class with lap times.

[Sandro Knauß]

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hefee-guest pushed a commit to branch master
in repository owncloud-client.

commit 7b84defd5625100532d5b55d9d35f0b8f99d4071
Author: Klaas Freitag <freitag at owncloud.com>
Date:   Wed Mar 26 18:00:02 2014 +0100

    Add a stopwatch utility class with lap times.
    
    Allows to meassure the duration of something that started at a
    point of time, with some small convenience methods.
---
 src/mirall/utility.cpp | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++
 src/mirall/utility.h   | 18 +++++++++++++++++
 2 files changed, 72 insertions(+)

diff --git a/src/mirall/utility.cpp b/src/mirall/utility.cpp
index bafb424..6da0f7a 100644
--- a/src/mirall/utility.cpp
+++ b/src/mirall/utility.cpp
@@ -490,4 +490,58 @@ bool Utility::isLinux()
 #endif
 }
 
+# define STOPWATCH_END_TAG QLatin1String("_STOPWATCH_END")
+
+void Utility::StopWatch::start()
+{
+    _startTime = QDateTime::currentDateTime();
+    _timer.start();
+}
+
+void Utility::StopWatch::stop()
+{
+    addLapTime(QLatin1String(STOPWATCH_END_TAG));
+    _timer.invalidate();
+}
+
+quint64 Utility::StopWatch::addLapTime( const QString& lapName )
+{
+    if( !_timer.isValid() ) {
+        start();
+    }
+    quint64 re = _timer.elapsed();
+    QPair<QString, quint64> p(lapName, re);
+    _lapTimes.append(p);
+    return re;
+}
+
+QDateTime Utility::StopWatch::startTime()
+{
+    return _startTime;
+}
+
+QDateTime Utility::StopWatch::timeOfLap( const QString& lapName )
+{
+    quint64 t = durationOfLap(lapName);
+    if( t ) {
+        QDateTime re(_startTime);
+        return re.addMSecs(t);
+    }
+
+    return QDateTime();
+}
+
+quint64 Utility::StopWatch::durationOfLap( const QString& lapName )
+{
+    QPair<QString, quint64> lapPair;
+
+    foreach( lapPair, _lapTimes ) {
+        if( lapPair.first == lapName ) {
+            return lapPair.second;
+        }
+    }
+    return 0;
+}
+
+
 } // namespace Mirall
diff --git a/src/mirall/utility.h b/src/mirall/utility.h
index 41760cd..904d2b8 100644
--- a/src/mirall/utility.h
+++ b/src/mirall/utility.h
@@ -18,6 +18,8 @@
 #include <QString>
 #include <QByteArray>
 #include <QDateTime>
+#include <QPair>
+#include <QElapsedTimer>
 
 class QWidget;
 
@@ -65,6 +67,22 @@ namespace Utility
     bool isMac();
     bool isUnix();
     bool isLinux(); // use with care
+
+    class StopWatch {
+    private:
+        QList<QPair<QString, quint64> > _lapTimes;
+        QDateTime _startTime;
+        QElapsedTimer _timer;
+    public:
+        void start();
+        void stop();
+        quint64 addLapTime( const QString& lapName );
+
+        // out helpers, return the masured times.
+        QDateTime startTime();
+        QDateTime timeOfLap( const QString& lapName );
+        quint64 durationOfLap( const QString& lapName );
+    };
 }
 
 }

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