Abstract

The recent Ada 2005 standard introduced a number of new real-time services, with the capability of creating and managing execution time budgets for groups of tasks. This capability has many practical applications in real-time systems in general, and therefore it is also interesting for real-time operating systems. In this paper we present an implementation of thread group budgets inside a POSIX real-operating system, which can be used to implement the new Ada 2005 services. The architecture and details of the implementation are shown, as they may be useful to other implementers of this functionality defined in the new standard.

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