Method and apparatus for preventing deadlock in a data base mana

Details Method and apparatus for preventing deadlock in a data base mana Method and apparatus for preventing deadlock in a data base mana

1986-04-07

1988-12-13

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 946

Patent

active

047915544

ABSTRACT:
In a computer system for parallelly executing a plurality of tasks by sharing a plurality of resources in a data base of a computer, a use sequence of the resources to be used by each task is inputted to the computer prior to the execution of the tasks. A possibility of deadlock due to sharing of common resources amojng the tasks is checked based on the information on the use sequence, and a deadlock avoidance information table is prepared. When the task issues a start request, the deadlock avoidance information table is referred and the start of the task which has the possibility of the deadlock is delayed.

REFERENCES:
patent: 4189771 (1980-02-01), Roeuer
patent: 4224664 (1983-09-01), Trinchieri
patent: 4318182 (1982-03-01), Bachman et al.
patent: 4403285 (1983-09-01), Kikuchi
patent: 4627019 (1986-12-01), Ng
J. W. Havender, "Avoiding Deadlock In Multitasking Systems", 1968.

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