diff options
| author | Bradley T. Hughes <bradley.hughes@nokia.com> | 2011-12-21 11:33:07 +0100 |
|---|---|---|
| committer | Qt by Nokia <qt-info@nokia.com> | 2012-01-02 10:44:00 +0100 |
| commit | 4e1ad49998cf782ccc88e7e80fbd05c722658a16 (patch) | |
| tree | 853adec328e55d9ea79e7ea35c4299fa124bbf54 /src | |
| parent | 6fc9820d2a3f349f04a2ea9c39261de0168d2331 (diff) | |
Make QTimer::singleShot use Qt::PreciseTimer for lower timeouts.
CoarseTimers are worst in their first firing, so we prefer a
PreciseTimer for something that happens only once. If the timeout is
too big, we use a CoarseTimer anyway (current threshold is 2000ms).
Author: Thiago Macieira <thiago.macieira@nokia.com>
Change-Id: I30b20acf506e442cd58126abfe3a4d70fc13b075
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/corelib/kernel/qtimer.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/corelib/kernel/qtimer.cpp b/src/corelib/kernel/qtimer.cpp index e89abade2c..8bf65c3c0e 100644 --- a/src/corelib/kernel/qtimer.cpp +++ b/src/corelib/kernel/qtimer.cpp @@ -317,7 +317,10 @@ QT_END_INCLUDE_NAMESPACE void QTimer::singleShot(int msec, QObject *receiver, const char *member) { - singleShot(msec, Qt::CoarseTimer, receiver, member); + // coarse timers are worst in their first firing + // so we prefer a high precision timer for something that happens only once + // unless the timeout is too big, in which case we go for coarse anyway + singleShot(msec, msec >= 2000 ? Qt::CoarseTimer : Qt::PreciseTimer, receiver, member); } /*! \overload |