Method and system for managing ownership of a released synchroni

Details Method and system for managing ownership of a released synchroni Method and system for managing ownership of a released synchroni

1993-12-23

1996-12-17

Oberley, Alvin E.

395728, 395726, G06F 946

Patent

active

055863183

ABSTRACT:
A method and system for managing ownership of a released synchronization mechanism is provided. In a preferred embodiment, a number of entities, such as threads, are attempting to acquire the synchronization mechanism when the synchronization mechanism becomes available. Each of the entities has a priority indicator that indicates the relative urgency of the attempt by the entity to acquire the synchronization mechanism. The method and system first identifies one of the entities attempting to acquire the synchronization mechanism that has the priority indicator that indicates that its attempt to acquire the synchronization mechanism is of the highest urgency. The method and system then determines whether any entity attempted to acquire the synchronization mechanism during a foregoing selected period of time. If an entity has attempted to acquire the synchronization mechanism during the selected period of time, then the method and system assigns ownership of the synchronization mechanism to the identified entity. If no entity has attempted to acquire the synchronization mechanism during the selected period of time, then the method and system defers the assignment of ownership of the synchronization mechanism to a later time.

REFERENCES:
patent: 5016166 (1991-05-01), Van Loo et al.
patent: 5138713 (1992-08-01), Loten
patent: 5159686 (1992-10-01), Chastain et al.
patent: 5187790 (1993-02-01), East et al.
patent: 5247675 (1993-09-01), Farrell et al.
patent: 5319782 (1994-06-01), Goldberg et al.
patent: 5394551 (1995-02-01), Holt et al.
Haldar, S. and D. K. Subramanian, "Fairness In Processor Scheduling In Time Sharing Systems," Operating Systems Review (SIGOPS), vol. 25, No. 1, Jan., 1991, pp. 4-18.
Deitel, H. M. and M. S. Kogan, "The Design of OS/2," Addison-Wesley Publishing Company 1992, p. 108, paragraph 2; p. 113, paragraph 2; p. 115, paragraph 3; p. 117, last paragraph, figure 5.5; p. 123, paragraph 3; p. 125, paragraph 2; p. 132, paragraph 3; and p. 135, last paragraph.
"Synchronization of Resource Access," Research Disclosure, No. 316, Aug. 1990, Disclosure No. 31691.
Tokuda, Hideyuki, Clifford W. Merrcer, "Priority Inversions in Real Time Communication," IEEE 1989 Symposium pp. 348-359.

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