diff options
Diffstat (limited to 'src/corelib/kernel/qobject.cpp')
| -rw-r--r-- | src/corelib/kernel/qobject.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp index 5880b96f32..8e0dc4dede 100644 --- a/src/corelib/kernel/qobject.cpp +++ b/src/corelib/kernel/qobject.cpp @@ -194,9 +194,15 @@ QMetaObject *QObjectData::dynamicMetaObject() const QObjectPrivate::QObjectPrivate(int version) : threadData(0), connectionLists(0), senders(0), currentSender(0), currentChildBeingDeleted(0) { +#ifdef QT_BUILD_INTERNAL + // Don't check the version parameter in internal builds. + // This allows incompatible versions to be loaded, possibly for testing. + Q_UNUSED(version); +#else if (version != QObjectPrivateVersion) qFatal("Cannot mix incompatible Qt library (version 0x%x) with this library (version 0x%x)", version, QObjectPrivateVersion); +#endif // QObjectData initialization q_ptr = 0; @@ -3090,6 +3096,10 @@ bool QObject::disconnect(const QObject *sender, const QMetaMethod &signal, expensive initialization only if something is connected to a signal. + \warning This function is called from the thread which performs the + connection, which may be a different thread from the thread in + which this object lives. + \sa connect(), disconnectNotify() */ @@ -3116,6 +3126,15 @@ void QObject::connectNotify(const QMetaMethod &signal) modularity. However, it might be useful for optimizing access to expensive resources. + \warning This function is called from the thread which performs the + disconnection, which may be a different thread from the thread in + which this object lives. This function may also be called with a QObject + internal mutex locked. It is therefore not allowed to re-enter any + of any QObject functions from your reimplementation and if you lock + a mutex in your reimplementation, make sure that you don't call QObject + functions with that mutex held in other places or it will result in + a deadlock. + \sa disconnect(), connectNotify() */ |