A number of flexible scheduling schemes can be programmed in Ada 95 by combining the more advanced features the language provides. For example, imprecise computations would appear to be accommodated by the use of ATCs (with timing triggers) and dynamic priorities. Unfortunately with this type of scheme, it is difficult to ensure that the priority of the task, following the triggering event, is at the appropriate level. This problem is investigated and a potential solution is described. It involves opening up the implementation of the delay queue so that application code can be executed directly when the time is right.
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Accessing delay queues
Burns, A.; Wellings, A. J.
Follow ACM SIGAda Ada Letters
, Volume XXII (4)
Association for Computing Machinery – Dec 1, 2002
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