diff options
| -rw-r--r-- | src/corelib/kernel/qcoreapplication.cpp | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp index 2dd56423ac..68bec5472f 100644 --- a/src/corelib/kernel/qcoreapplication.cpp +++ b/src/corelib/kernel/qcoreapplication.cpp @@ -2628,10 +2628,12 @@ void QCoreApplication::setEventDispatcher(QAbstractEventDispatcher *eventDispatc \fn void qAddPostRoutine(QtCleanUpFunction ptr) \relates QCoreApplication - Adds a global routine that will be called from the QApplication + Adds a global routine that will be called from the QCoreApplication destructor. This function is normally used to add cleanup routines for program-wide functionality. + The cleanup routines are called in the reverse order of their addition. + The function specified by \a ptr should take no arguments and should return nothing. For example: @@ -2640,8 +2642,11 @@ void QCoreApplication::setEventDispatcher(QAbstractEventDispatcher *eventDispatc Note that for an application- or module-wide cleanup, qAddPostRoutine() is often not suitable. For example, if the program is split into dynamically loaded modules, the relevant - module may be unloaded long before the QApplication destructor is - called. + module may be unloaded long before the QCoreApplication destructor is + called. In such cases, if using qAddPostRoutine() is still desirable, + qRemovePostRoutine() can be used to prevent a routine from being + called by the QCoreApplication destructor. For example, if that + routine was called before the module was unloaded. For modules and libraries, using a reference-counted initialization manager or Qt's parent-child deletion mechanism may @@ -2653,6 +2658,21 @@ void QCoreApplication::setEventDispatcher(QAbstractEventDispatcher *eventDispatc By selecting the right parent object, this can often be made to clean up the module's data at the right moment. + + \sa qRemovePostRoutine() +*/ + +/*! + \fn void qRemovePostRoutine(QtCleanUpFunction ptr) + \relates QCoreApplication + \since 5.3 + + Removes the cleanup routine specified by \a ptr from the list of + routines called by the QCoreApplication destructor. The routine + must have been previously added to the list by a call to + qAddPostRoutine(), otherwise this function has no effect. + + \sa qAddPostRoutine() */ /*! |