Method and apparatus for error tracking in a multitasking enviro

Details Method and apparatus for error tracking in a multitasking enviro Method and apparatus for error tracking in a multitasking enviro

1990-06-27

1993-01-19

Atkinson, Charles E.

Excavating

395575, G06F 1100

Patent

active

051812045

ABSTRACT:
An error flag setting arrangement for a multitasking environment requires all of a multiplicity of processes to use the same funtion to set an error flag indicator. Inside of this function, the flag indication is tested prior to setting to a new value. If the flag indication is already set, the function waits a predetermined period of time. In the event that the error indication is not reset within the predetermined period a message describing the current value of error indication is displayed on the screen and the error indication is set to the new value.

REFERENCES:
patent: 3704363 (1972-11-01), Salmassey et al.
patent: 5047977 (1991-09-01), Hill et al.
patent: 5090014 (1992-02-01), Polich et al.

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