The following code demonstrates how to count the number of reference makers that are directly observing a reference target.
unsigned int GetImmediateDependencyCount(ReferenceTarget* rtarg)
{
unsigned int count = 0;
DependentIterator di(rtarg);
while (di.Next() != NULL)
{
count++;
}
return count;
}
To count all references that are dependent on an object, directly or indirectly you would use ReferenceTarget::DoEnumDependents(). This would be done as follows:
unsigned int GetAllDependencyCount(ReferenceTarget* rtarg)
{
struct CallBack : DependentEnumProc {
int count;
CallBack() : count(0) { }
virtual int proc(ReferenceMaker* rmaker) {
++count;
}
};
CallBack cb;
rtarg->DoEnumDependents(&cb);
return cb.count();
}