GROW 050 - grow a permanent or temporary file.

Usage:

drl    grow
zero   l(delta),l(fileid)
zero   l(buff),l(stat)

Where:

delta

Gives the request size.

bit 0: unit type: If set to 1, this indicates the request is in links. If set to 0, the request is in llinks.
bits 1-17: grow amount: Number of llinks or links to grow the file. Zero asks the system to choose.
bits 18-35: these bits are unused.

fileid

is a two-word vector containing the aftname of the file.

buff

is a 158-word work area required for permanent files only.

stat

is a two-word status return area. Bits 0-11 of the first word will bet set as follows:

4000: No errors.
400: I/O error: cannot proceed.
401: Link space exhausted.
402: File is not in the AFT.
402: Internal link table checksum error.
404: No PAT space available.

Description:

DRL GROW is used to grow an already accessed (opened) permanent or temporary file. When a growth rate is not specified for a temporary file, its size is increased by an amount equal to the current size of the file or the difference between 1365 links and the current size, whichever value is smallest.