public void Find(ObjectProxy obj)
{
m_IsBusy = true;
m_Items = new List <RootPath>();
var seen = new HashSet <long>();
var queue = new Queue <List <ObjectProxy> >();
queue.Enqueue(new List <ObjectProxy> {
obj
});
int guard = 0;
while (queue.Any())
{
if (m_Abort)
{
break;
}
if (++guard > s_IterationLoopGuard)
{
Debug.LogWarning("RootPath iteration loop guard kicked in.");
//m_Items = new List<RootPath>();
break;
}
var pop = queue.Dequeue();
var tip = pop.Last();
RootPathReason reason;
if (IsRoot(tip, out reason))
{
m_Items.Add(new RootPath(reason, pop.ToArray()));
continue;
}
var referencedBy = GetReferencedBy(tip);
foreach (var next in referencedBy)
{
if (seen.Contains(next.id))
{
continue;
}
seen.Add(next.id);
var dupe = new List <ObjectProxy>(pop)
{
next
};
queue.Enqueue(dupe);
m_ScanCount++;
}
}
m_Items.Sort();
m_IsBusy = false;
}
void ScheduleJob(ObjectProxy objectProxy)
{
var job = new Job
{
snapshot = snapshot,
objectProxy = objectProxy,
referencedByControl = m_ReferencedByControl,
referencesControl = m_ReferencesControl
};
ScheduleJob(job);
}
void ScheduleJob(ObjectProxy objectProxy)
{
Clear();
var job = new RootPathJob
{
snapshot = snapshot,
objectProxy = objectProxy,
control = m_RootPathControl,
paths = m_RootPaths
};
ScheduleJob(job);
}
List <ObjectProxy> GetReferencedBy(ObjectProxy obj)
{
var referencedBy = new List <PackedConnection>(32);
if (obj.staticField.isValid)
{
obj.snapshot.GetConnections(obj.staticField.packed, null, referencedBy);
}
if (obj.native.isValid)
{
obj.snapshot.GetConnections(obj.native.packed, null, referencedBy);
}
if (obj.managed.isValid)
{
obj.snapshot.GetConnections(obj.managed.packed, null, referencedBy);
}
if (obj.gcHandle.isValid)
{
obj.snapshot.GetConnections(obj.gcHandle.packed, null, referencedBy);
}
var value = new List <ObjectProxy>(referencedBy.Count);
foreach (var c in referencedBy)
{
switch (c.fromKind)
{
case PackedConnection.Kind.Native:
value.Add(new ObjectProxy(obj.snapshot, obj.snapshot.nativeObjects[c.from]));
break;
case PackedConnection.Kind.Managed:
value.Add(new ObjectProxy(obj.snapshot, obj.snapshot.managedObjects[c.from]));
break;
case PackedConnection.Kind.GCHandle:
value.Add(new ObjectProxy(obj.snapshot, obj.snapshot.gcHandles[c.from]));
break;
case PackedConnection.Kind.StaticField:
value.Add(new ObjectProxy(obj.snapshot, obj.snapshot.managedStaticFields[c.from]));
break;
}
}
return(value);
}
bool IsRoot(ObjectProxy thing, out RootPathReason reason)
{
reason = RootPathReason.None;
if (thing.staticField.isValid)
{
reason = RootPathReason.Static;
return(true);
}
if (thing.managed.isValid)
{
return(false);
}
if (thing.gcHandle.isValid)
{
return(false);
}
if (!thing.native.isValid)
{
throw new System.ArgumentException("Unknown type: " + thing.GetType());
}
if (thing.native.isManager)
{
reason = RootPathReason.UnityManager;
return(true);
}
if (thing.native.isDontDestroyOnLoad)
{
reason = RootPathReason.DontDestroyOnLoad;
return(true);
}
if ((thing.native.hideFlags & HideFlags.DontUnloadUnusedAsset) != 0)
{
reason = RootPathReason.DontUnloadUnusedAsset;
return(true);
}
if (thing.native.isPersistent)
{
return(false);
}
if (thing.native.type.IsSubclassOf(thing.snapshot.coreTypes.nativeComponent))
{
reason = RootPathReason.Component;
return(true);
}
if (thing.native.type.IsSubclassOf(thing.snapshot.coreTypes.nativeGameObject))
{
reason = RootPathReason.GameObject;
return(true);
}
if (thing.native.type.IsSubclassOf(thing.snapshot.coreTypes.nativeAssetBundle))
{
reason = RootPathReason.AssetBundle;
return(true);
}
reason = RootPathReason.Unknown;
return(true);
}
public void Find(ObjectProxy obj)
{
m_IsBusy = true;
m_Items = new List <RootPath>();
var seen = new HashSet <long>();
var queue = new Queue <List <ObjectProxy> >();
queue.Enqueue(new List <ObjectProxy> {
obj
});
int issues = 0;
int guard = 0;
while (queue.Any())
{
if (m_Abort)
{
break;
}
if (++guard > s_IterationLoopGuard)
{
Debug.LogWarning("RootPath iteration loop guard kicked in.");
//m_Items = new List<RootPath>();
break;
}
var pop = queue.Dequeue();
var tip = pop.Last();
RootPathReason reason;
if (IsRoot(tip, out reason))
{
m_Items.Add(new RootPath(reason, pop.ToArray()));
continue;
}
var referencedBy = GetReferencedBy(tip, ref issues);
foreach (var next in referencedBy)
{
if (seen.Contains(next.id))
{
continue;
}
seen.Add(next.id);
var dupe = new List <ObjectProxy>(pop)
{
next
};
queue.Enqueue(dupe);
m_ScanCount++;
}
}
m_Items.Sort();
m_IsBusy = false;
if (issues > 0)
{
Debug.LogWarningFormat("{0} issues have been detected while finding root-paths. This is most likely related to an earlier bug in Heap Explorer, that started to occur with Unity 2019.3 and causes that (some) object connections are invalid. Please capture a new memory snapshot.", issues);
}
}
