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Remove some aggregation deadlocks.

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You are not allowed to add components that belong to other aggregate
(including aggregates themselves). Warn in this case instead of locking
up.

Task-number: QTCREATORBUG-4926
Change-Id: I4908fb9019efbc2fa3b7c3c57e08cc1d7f8f3e2c
Reviewed-on: http://codereview.qt.nokia.com/679
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Bill King <bill.king@nokia.com>
This commit is contained in:
con
2011-06-23 16:20:38 +02:00
committed by Bill King
parent 78fa1bb0aa
commit f3e22da48c
2 changed files with 17 additions and 2 deletions
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9
src/libs/aggregation/aggregate.cpp
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@@ -33,6 +33,7 @@
#include "aggregate.h"
#include <QtCore/QWriteLocker>
#include <QtCore/QDebug>
/*!
\namespace Aggregation
@@ -228,6 +229,8 @@ void Aggregate::deleteSelf(QObject *obj)
\fn void Aggregate::add(QObject *component)
Adds the \a component to the aggregate.
You can't add a component that is part of a different aggregate
or an aggregate itself.
\sa Aggregate::remove()
*/
@@ -240,8 +243,10 @@ void Aggregate::add(QObject *component)
Aggregate *parentAggregation = aggregateMap().value(component);
if (parentAggregation == this)
return;
if (parentAggregation)
parentAggregation->remove(component);
if (parentAggregation) {
qWarning() << "Cannot add a component that belongs to a different aggregate" << component;
return;
}
m_components.append(component);
connect(component, SIGNAL(destroyed(QObject*)), this, SLOT(deleteSelf(QObject*)));
aggregateMap().insert(component, this);