Electrical computers and digital processing systems: multicomput – Computer-to-computer data routing – Least weight routing
Patent
1997-06-19
2000-11-21
Coulter, Kenneth R.
Electrical computers and digital processing systems: multicomput
Computer-to-computer data routing
Least weight routing
709203, G06F 1300
Patent
active
061516392
ABSTRACT:
The present invention pertains to a system and method for performing remote object invocation. A object-oriented computing system includes a number of independent computing nodes that are interconnected via a communications link. The nodes represent client and/or server computers that do not share memory. Each node includes a number of domains having separate address spaces. Each domain includes one or more threads of execution that invoke one or more objects. The object's method can reside in the same domain as the requesting thread, in a different domain within the same node, or in a different domain in another node. A file descriptor is used to represent those objects whose methods reside in a different domain than the requesting thread. A file descriptor is a protected kernel entity that enables a thread to invoke an object. A thread can only access those objects for which it has received an associated file descriptor. An Object Request Broker (ORB) services the object invocation requests for those objects residing in different domains. The ORB provides a mechanism that translates the file descriptor used to reference an object in one domain into the file descriptor used to invoke the object in the domain having the object's method.
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Khalidi Yousef A.
Murphy Declan
Talluri Madhusudhan
Tucker Andrew G.
Coulter Kenneth R.
Sun Microsystems Inc.
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