SOS: An Object-Oriented Operating System - Assessment and Perspectives

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SOS: An Object-Oriented Operating System - Assessment and Perspectives (1991)

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by Marc Shapiro , Yvon Gourhant , Sabine Habert , Laurence Mosseri , Michel Ruffin , Céline Valot

Venue:	Computing Systems
Citations:	80 - 18 self

BibTeX

@ARTICLE{Shapiro91sos:an,
    author = {Marc Shapiro and Yvon Gourhant and Sabine Habert and Laurence Mosseri and Michel Ruffin and Céline Valot},
    title = {SOS: An Object-Oriented Operating System - Assessment and Perspectives},
    journal = {Computing Systems},
    year = {1991},
    volume = {2},
    pages = {287--337}
}

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Abstract

SOS (SOMIW Operating System) is the result of a four-year effort at INRIA to define an object-oriented operating system. SOS provides support for arbitrary, user-defined, typed objects. The system implements object migration; this mechanism is generic, but can be tailored to specific object semantics thanks to the prerequisite and upcall concepts. SOS also supports Fragmented Objects (FOs), i.e. objects the representation of which spreads across multiple address spaces. Fragments of a single FO are objects that enjoy mutual communication privileges. A fragment acts as a proxy, i.e. a local interface to the FO. All the other mechansisms of SOS are built upon these basic abstractions. Thanks to prerequisites, migration of data may cause the migration and dynamic type-checking and linking of the corresponding code. A distributed object manager, an object storage service, a naming service, as well as a protocol toolbox and some applications, have been built as FOs. This paper gives a detai...

Keyphrases

object-oriented operating system assessment basic abstraction protocol toolbox somiw operating system fragmented object local interface system implement object migration dynamic type-checking object-oriented operating system single fo multiple address space upcall concept distributed object manager object storage service mutual communication privilege fragment act four-year effort corresponding code naming service specific object semantics thanks typed object

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