Process executing method and resource accessing method in...

G - Physics – 06 – F

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G06F 9/46 (2006.01) G06F 9/50 (2006.01) G06F 15/16 (2006.01)

Patent

CA 2213371

A process executing method capable of performing multiprocessing by using a shared resource without impairing periodical drivability of processes designed for executing continuous media processing. When a process requests the use of the shared resource, abortion of that process is first disabled by the process itself by using an abort disable function and then preemption of the same process is disabled by means of a preempt control module, whereupon the process enters a processing executed by using the shared resource. Upon completion of the processing for the shared resource, the process is immediately set to a preempt-enabled state by means of a preempt control module. After completion of all the processings, the abort-disabled state is finally cleared by using a disabled-abort clear function. Upon occurrence of forcive termination of a process in the abort-disabled state thereof, execution of this process is continued until the abort-disabled state is cleared, and the process is terminated forcibly after the abort-disabled state has been cleared.

L'invention est une méthode d'exécution de processus pouvant effectuer un multitraitement au moyen d'une ressource mise en commun sans nuire à la commande périodique de processus de traitement continu de médias. Quand un processus demande à utiliser la ressource mise en commun, la suspension de ce processus est d'abord invalidée par le processus même au moyen d'une fonction d'invalidation, l'interruption du processus est invalidée par un module de contrôle d'interruption, puis le processus subit un traitement exécuté à l'aide de la ressource mise en commun. Une fois ce traitement terminé, le processus est immédiatement mis dans un état d'interruption validé au moyen d'un module de contrôle d'interruption. Quand tous les traitements sont terminés, l'état de suspension validé est finalement supprimé au moyen d'une fonction de suppression de suspension validée. En cas d'interruption forcée d'un processus en état de suspension invalidée, l'exécution de ce processus se continue jusqu'à la suppression de l'état de suspension invalidée et est interrompue après la suppression de l'état de suspension invalidée.

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