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COOL: kernel support for object-oriented environments

The Chorus Object-Oriented Layer (COOL) is an extension of the facilities provided by the Chorus distributed operating system with additional functionality for the support of object-oriented environments. This functionality is realized by a layer built on top of the Chorus V3 Nucleus, which extends the Chorus interface with generic functions for object management: creation, deletion, storage, remote invocation and migration. One major goal of this approach was to explore the feasibility of general object management at the kernel level, with support of multiple object models at a higher level. We present the implementation of COOL and a first evaluation of this approach with a C++ environment using the COOL mechanisms.