Multiple subtyping in a persistent Distributed Shared Memory operating system

被引：0

作者：

Schoettner, M ^{[1
]}

Schirpf, O ^{[1
]}

Wende, M ^{[1
]}

Schulthess, P ^{[1
]}

机构：

[1] Univ Ulm, Dept Distributed Syst, Ulm, Germany

来源：

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED PROCESSING TECHNIQUES AND APPLICATIONS, VOLS I-V | 2000年

关键词：

interfaces; multiple subtyping; !text type='Java']Java[!/text; persistence; Distributed Shared Memory;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Plurix is an object-oriented Operating System (OS) developed for the PC platform. Network communication is implemented via Distributed Shared Memory (DSM) management using restartable transactions and optimistic synchronization. The OS is developed with a proprietary Java compiler transforming Java sources into Intel protected mode code. Abandoning the hardware independence of Java eliminates loss of performance and allows developing the total OS in Java. In tills paper we focus on Java interfaces offering multiple subtyping in the Plurix OS but our approach is applicable to any other strong typing object-oriented language. After a short review of the Plurix environment we present how Java interfaces are realized efficiently with respect to method dispatch overhead. We shaw hour the Java typing rules are realized using pseudo subtyping. Furthermore we reveal interesting semantic amiguities of interface reference members arising in a persistent DSM. We suggest extended initialization rules to overcome these problems. in this context we also introduce meta interface descriptors together with a generalized type equivalence check scheme.

引用

页码：565 / 571

页数：7

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