Disk file updating control device and method using updating data

Details Disk file updating control device and method using updating data Disk file updating control device and method using updating data

1990-10-10

1995-01-31

Black, Thomas G.

Boots, shoes, and leggings

395425, 3642465, 364DIG1, G06F 1314

Patent

active

053865537

ABSTRACT:
In a disk file control device in which updating data output by a data processing section is temporarily stored in a FIFO queue to update a file, the updating data has a data structure which includes an operation code representing a type of updating operation such as a data inserting, removing or updating operation, and amount-of-data information indicating an amount of data to be subjected to the type of updating operation. The type of operation is determined from a given operation code and is used to change the size of file to be updated by as much as an amount of data obtained from the amount-of-data information, and thereafter the data stored in the FIFO queue is transferred into the file thus changed. Alternatively, the type of operation is used to change the size of the original file to be updated to provide a new file, and the data of the original file and the FIFO queue are transferred into the new file.

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