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refs #783 Isolated improvements in BlackMisc::singleShot using QSharedPointer and C++14 lambda init-capture.

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This commit is contained in:
Mathew Sutcliffe
2016-10-21 00:23:02 +01:00
committed by Klaus Basan
parent 0b07088639
commit 64e2414b56
1 changed files with 6 additions and 7 deletions
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13
src/blackmisc/worker.h
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@@ -60,19 +60,18 @@ namespace BlackMisc
*/
//! @{
template <typename F>
void singleShot(int msec, QThread *target, F task)
void singleShot(int msec, QThread *target, F &&task)
{
auto *timer = new QTimer;
QSharedPointer<QTimer> timer(new QTimer, [](QObject *o) { QMetaObject::invokeMethod(o, "deleteLater"); });
timer->setSingleShot(true);
timer->moveToThread(target);
auto trace = getStackTrace();
QObject::connect(timer, &QTimer::timeout, [ = ]()
timer->moveToThread(target->thread());
QObject::connect(timer.data(), &QTimer::timeout, target, [trace = getStackTrace(), task = std::forward<F>(task), timer]
{
static_cast<void>(trace);
static_cast<void>(timer);
task();
timer->deleteLater();
});
QMetaObject::invokeMethod(timer, "start", Q_ARG(int, msec));
QMetaObject::invokeMethod(timer.data(), "start", Q_ARG(int, msec));
}
template <typename F>
void singleShot(int msec, QThread *target, QObject *owner, F task)