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SOS: a distributed Object-Oriented Operating System

Marc Shapiro 1 
1 SOR - Distributed Object Systems
Inria Paris-Rocquencourt
Abstract : We present SOS, the operating system for SOMIW (Secure Open Multimedia Integrated Workstation). The SOS is object-structured; all services and communication is expressed in terms of passive objects with procedural interfaces.Resources are accessed by clients via a local (to the client) proxy object. The possibly distributed or group nature of the resource is hidden behind the proxy interface.The service and its representatives form a single distributed object (or group); any communication protocol is hidden, as part of its internal representation. The proxy is a programmable capability and may be different per-client. This approach also allows the programmer of a resource to cope with the heterogeneous nature of its clients.The OS is based on a kernel which implements contexts, processes, memory segments and object descriptors. Object invocation normally occurs within one context, but may trap transparently into an other context.
Keywords : loo rep
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Contributor : Alain Monteil Connect in order to contact the contributor
Submitted on : Thursday, December 24, 2015 - 9:43:53 AM
Last modification on : Thursday, February 3, 2022 - 11:14:07 AM

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Marc Shapiro. SOS: a distributed Object-Oriented Operating System. SIGOPS European Workshop on ``Making Distributed Systems Work'', 1986, Amsterdam, the, Netherlands. ⟨10.1145/503956.503997⟩. ⟨hal-01248236⟩



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