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QmlProfiler: Allow ranges starting at the exact same time

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Previously, SortedTimelineModel could be confused by ranges starting at
the exact same time if they were inserted in the wrong order. With this
change the nesting calculation keeps track of that.

Change-Id: Id296a54eed7e1ab421e94a296ec4e30adce185f2
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
This commit is contained in:
Ulf Hermann
2014-07-07 12:00:02 +02:00
parent 578236317e
commit e91c79cb11
1 changed files with 26 additions and 6 deletions
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32
src/plugins/qmlprofiler/sortedtimelinemodel.h
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@@ -143,18 +143,38 @@ public:
QLinkedList<int> parents;
for (int range = 0; range != count(); ++range) {
Range &current = ranges[range];
for (QLinkedList<int>::iterator parent = parents.begin(); parent != parents.end();) {
qint64 parentEnd = ranges[*parent].start + ranges[*parent].duration;
for (QLinkedList<int>::iterator parentIt = parents.begin();;) {
Range &parent = ranges[*parentIt];
qint64 parentEnd = parent.start + parent.duration;
if (parentEnd < current.start) {
parent = parents.erase(parent);
if (parent.start == current.start) {
if (parent.parent == -1) {
parent.parent = range;
} else {
Range &ancestor = ranges[parent.parent];
if (ancestor.start == current.start &&
ancestor.duration < current.duration)
parent.parent = range;
}
// Just switch the old parent range for the new, larger one
*parentIt = range;
break;
} else {
parentIt = parents.erase(parentIt);
}
} else if (parentEnd >= current.start + current.duration) {
current.parent = *parent;
// no need to insert
current.parent = *parentIt;
break;
} else {
++parent;
++parentIt;
}
if (parentIt == parents.end()) {
parents.append(range);
break;
}
}
parents.append(range);
}
}