Modula-3 network objects over ANSA: heterogeneous object-based RPC in a modern systems programming language

ABSTRACT

Modula-3 provides language-level features such as threads, objects and exceptions which are useful in distributed systems. The ANSA testbench provides a complete infrastructure for object-based distributed systems, but currently requires the use of C as the main programming language. We describe a successful attempt to marry the two, which provides a practical example of how a modern systems programming language can make the construction of object-based distributed systems more congenial for the application programmer.

REFERENCES

• 1: Pierre America, Inheritance and subtyping in a parallel object-oriented language, European conference on object-oriented programming on ECOOP '87, p.234-242, October 1987, Paris, France
• 2: Architecture Projects Management Ltd., Cambridge, UK. ANSA Reference Manual release 01.01, Mar. 1989.
• 3: Andrew D. Birrell , Bruce Jay Nelson, Implementing remote procedure calls, ACM Transactions on Computer Systems (TOCS), v.2 n.1, p.39-59, February 1984 [doi>10.1145/2080.357392]
• 4: Andrew Black , Norman Hutchinson , Eric Jul , Henry Levy , Larry Carter, Distributed and abstract types in Emerald, IEEE Transactions on Software Engineering, v.13 n.1, p.65-76, Jan. 1987 [doi>10.1109/TSE.1987.232836]
• 5: P. S. Canning , W. R. Cook , W. L. Hill , W. G. Olthoff, Interfaces for strongly-typed object-oriented programming, Conference proceedings on Object-oriented programming systems, languages and applications, p.457-467, October 02-06, 1989, New Orleans, Louisiana, United States
• 6: Maurice P. Herlihy , Barbara Liskov, A Value Transmission Method for Abstract Data Types, ACM Transactions on Programming Languages and Systems (TOPLAS), v.4 n.4, p.527-551, Oct. 1982 [doi>10.1145/69622.357182]
• 7: M. Manasse and G. Nelson. Trestle reference manual. Report 68, DEC Systems Research Centre, 130, Lytton Avenue, Palo Alto, CA 94301, Dec. 1991.
• 8: G. Nelson. Supplementary material for Greg Nelson's lecture on network objects. Unpublished notes, DEC SRC, July 1991.
• 9: Greg Nelson, Systems programming with Modula-3, Prentice-Hall, Inc., Upper Saddle River, NJ, 1991
• 10: R. Want. The Active Badge location system. Technical report, Olivetti Research Laboratories, Old Addenbrooke's Site 24a Trumpington St., Cambridge, UK CB2 1QN, 1990.