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  1. OMG Issue

CPP11 — Valuetypes and arbitrary graphs

  • Key: CPP11-95
  • Legacy Issue Number: 2561
  • Status: closed  
  • Source: Anonymous
  • Summary:

    Summary: Valuetypes can be used to form arbitrary, potentially circular graphs.
    This means that reference counts may never drop to zero and that more
    advanced garbage collection is required, which does not come natural to

    An ORB may keep track of circularity by traversing a graph and can detect
    if the last outside reference is lost. However, the overhead is significant,
    and the solution would be incomplete, as users need not use "proper" refe-
    rence counting on graph nodes by ignoring both OBV_* classes and default
    reference counting.

    Possible solution: restrict CORBA::DefaultValueRefCountBase to
    non-circular graphs. Users can decide much better when a graph is safe
    to be cleaned up.

  • Reported: CPP 1.0 — Tue, 30 Mar 1999 05:00 GMT
  • Disposition: Resolved — CPP 1.1
  • Disposition Summary:

    Close as duplicate of 2309.

  • Updated: Fri, 6 Mar 2015 20:58 GMT