QFutureSynchronizer Class

 void someFunction()
 {
     QFutureSynchronizer<void> synchronizer;

     ...

     synchronizer.addFuture(QtConcurrent::run(anotherFunction));
     synchronizer.addFuture(QtConcurrent::map(list, mapFunction));

     return; // QFutureSynchronizer waits for all futures to finish
 }

Member Function Documentation

QFutureSynchronizer::QFutureSynchronizer()

Constructs a QFutureSynchronizer.

QFutureSynchronizer::QFutureSynchronizer(const QFuture<T> & future)

Constructs a QFutureSynchronizer and begins watching future by calling addFuture().

See also addFuture().

QFutureSynchronizer::~QFutureSynchronizer()

Calls waitForFinished() function to ensure that all futures have finished before destroying this QFutureSynchronizer.

See also waitForFinished().

void QFutureSynchronizer::addFuture(const QFuture<T> & future)

Adds future to the list of managed futures.

See also futures().

bool QFutureSynchronizer::cancelOnWait() const

Returns true if the cancel-on-wait feature is enabled; otherwise returns false. If cancel-on-wait is enabled, the waitForFinished() function will cancel all futures before waiting for them to finish.

See also setCancelOnWait() and waitForFinished().

void QFutureSynchronizer::clearFutures()

Removes all managed futures from this QFutureSynchronizer.

See also addFuture() and setFuture().

QList<QFuture<T> > QFutureSynchronizer::futures() const

Returns a list of all managed futures.

See also addFuture() and setFuture().

void QFutureSynchronizer::setCancelOnWait(bool enabled)

Enables or disables the cancel-on-wait feature based on the enabled argument. If enabled is true, the waitForFinished() function will cancel all futures before waiting for them to finish.

See also cancelOnWait() and waitForFinished().

void QFutureSynchronizer::setFuture(const QFuture<T> & future)

Sets future to be the only future managed by this QFutureSynchronizer. This is a convenience function that calls waitForFinished(), then clearFutures(), and finally passes future to addFuture().

See also addFuture(), waitForFinished(), and clearFutures().

void QFutureSynchronizer::waitForFinished()

Waits for all futures to finish. If cancelOnWait() returns true, each future is canceled before waiting for them to finish.

See also cancelOnWait() and setCancelOnWait().