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Second USENIX Conference on Object-Oriented Technologies (COOTS), 1996
Extending a Traditional OS Using Object-Oriented Techniques
Jose M. Bernabeu-Auban, Vlada Matena, and Yousef A. Khalidi
Sun Microsystems Laboratories
Abstract
This paper describes a new object infrastructure designed for
tightly-coupled distributed systems. The infrastructure includes an
object model, interface-to-C++ translator, an object request broker
(ORB) based on the CORBA architecture model, and a transport
layer. The infrastructure allows the use of multiple data marshalling
handlers, includes object recovery features, and provides remote
communication through a mechanism called xdoors. The object
infrastructure has been used to extend the Solaris operating system
into a prototype clustered operating system called Solaris MC. This
illustrates how the CORBA object model can be used to extend an
existing UNIX implementation into a distributed operating system. It
also shows the advantages of defining strong kernel component
interfaces in the IDL interface definition language. Finally, Solaris
MC illustrates how C++ can be used for kernel development, coexisting
with previous code.
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