Pulse or digital communications – Repeaters – Testing
Patent
1994-04-28
1995-02-21
Kriess, Kevin A.
Pulse or digital communications
Repeaters
Testing
375425, 375600, 375650, 3642468, 3642469, 364280, 3642811, 364DIG1, G06F 1200
Patent
active
053924320
ABSTRACT:
In object-oriented systems, non-memory resources are both managed by objects and represented as objects. If an object managing or representing non-memory resources becomes unreferenced, the non-memory resources managed by that object are lost from the system. This invention provides, as a part of a garbage collection process that automatic recovers memory resources of unreferenced objects, a last-will method that is invoked for unreachable objects that have provided a method named "finalize." All unreachable objects that have a last will method are put on a list. A separate process is scheduled to run each last-will method on its object in the list. Objects that have become reachable as a consequence of the last-will method are preserved. The memory resources associated with objects that have remained unreachable after the execution of the last-will method are recovered. In this way both memory and non-memory resources are preserved for re-use.
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Engelstad Steven L.
Falck Keith F.
Vandendorpe James E.
AT&T Corp.
Butler Dennis M.
Johannesen Michael B.
Kriess Kevin A.
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