internal bool TryGetReference(H5ObjectReference reference, HashSet <ulong> alreadyVisited, H5LinkAccess linkAccess, int recursionLevel, out H5NamedReference namedReference)
{
// similar to H5Gint.c (H5G_visit)
if (recursionLevel >= 100)
{
throw new Exception("Too much recursion.");
}
bool skip = false;
namedReference = default;
/* If its ref count is > 1, we add it to the list of visited objects
* (because it could come up again during traversal) */
if (this.ReferenceCount > 1)
{
if (alreadyVisited.Contains(this.Reference.Value))
{
skip = true;
}
else
{
alreadyVisited.Add(this.Reference.Value);
}
}
if (!skip)
{
var references = this
.EnumerateReferences(linkAccess)
.ToList();
namedReference = references
.FirstOrDefault(current => current.Value == reference.Value);
if (namedReference.Name != null /* if struct value is not equal to default */)
{
return(true);
}
else
{
// search childs for reference
foreach (var childReference in references)
{
var group = childReference.Dereference() as H5Group;
if (group != null)
{
if (group.TryGetReference(reference, alreadyVisited, linkAccess, recursionLevel + 1, out namedReference))
{
return(true);
}
}
}
}
}
return(false);
}
public H5Object Get(H5ObjectReference reference, H5LinkAccess linkAccess = default)
{
if (this.Reference.Value == reference.Value)
{
return(this);
}
return(this
.InternalGet(reference, linkAccess)
.Dereference());
}
internal H5NamedReference InternalGet(H5ObjectReference reference, H5LinkAccess linkAccess)
{
var alreadyVisted = new HashSet <ulong>();
if (this.TryGetReference(reference, alreadyVisted, linkAccess, recursionLevel: 0, out var namedReference))
{
return(namedReference);
}
else
{
throw new Exception($"Could not find object for reference with value '{reference.Value:X}'.");
}
}