Computer system with an access control unit for resource

Details Computer system with an access control unit for resource Computer system with an access control unit for resource

1990-01-24

1993-10-05

Kriess, Kevin A.

Boots, shoes, and leggings

364DIG1, 3642303, 364230, 3642813, 364280281.7, G06F 946

Patent

active

052513173

ABSTRACT:
In a computer system of the multi-task type, when a plurality of tasks execute related data processings, ID data specifically provided for the data processings is generated, and recorded. With the recorded ID, an exclusive control and a shared control in the access to a predetermined resource are performed. When, after a main task records ID data and makes an access to a resource, another task requests the access to the resource on the basis of another ID data, the access to the resource is prohibited or the resource rejects the access to it. When a sub task executing the data processing related to that executed by the main task makes an access to the resource by using the request and the ID data both supplied from the main task, the sub task can access to the resource.

REFERENCES:
patent: 4399504 (1983-08-01), Obermarck et al.
patent: 4604694 (1986-08-01), Hough
patent: 4742447 (1988-05-01), Duvall et al.
patent: 4815030 (1989-03-01), Cross et al.
patent: 4941084 (1990-07-01), Terada et al.

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