Active fault-tolerant system for open distributed computing
ATC'06 Proceedings of the Third international conference on Autonomic and Trusted Computing
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This paper presents a language framework for a concurrent description and an implementation of a synchroniza-tion mechanism in distributed object-oriented computation.Some concurrent object-oriented languages are considered to be constructed from a user-defined function and a synchronization constraint. We propose the language for the synchronization constraint, which allows to define mutual exclusion and conditional synchronization by using declarative notations. The synchronization constraint is separated from user-defined functions, and the relation between them is described in the binding code. The binding mechanism reduces the dependency between them and contributes to code reuse. This framework makes it is easy for programmers to understand and describe the use-defined functions and synchronization constraints independently.The implementation of the synchronization mechanism is based on reconfigurable object model that we are developing. The user-defined function and synchronization mechanism are implemented as its own separated module in the single object. Then the synchronization mechanism has flexibility and preserves the concept of object-orientation.