Type checking stream flow endpoints

  • Authors:
  • F. Eliassen;S. Mehus

  • Affiliations:
  • University of Tromsø, Tromsø, Norway;University of Tromsø, Tromsø, Norway

  • Venue:
  • Middleware '98 Proceedings of the IFIP International Conference on Distributed Systems Platforms and Open Distributed Processing
  • Year:
  • 2009

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Abstract

In middleware the notion of interface type is important for supporting type checking of interfaces during bind time. In this paper we present the design of a prototype generic flow type checker founded on a generic type model of stream flows and a general definition of stream flow compatibility ensuring the correctness of binding attempts of stream flow endpoints. The type checker determines compatibility by computing the set of common flow capabilities supported by the two endpoints. We illustrate the application of the type checker through its use as part of a flow binding facility, and as a basis for capability negotiations. The performance of the type checker is critical for its overall usefulness in interactive distributed multimedia applications. We therefore report on the results of some measurements to determine its performance.