View source for Shell Commands/PFSSetRollover

'''PFSSetRollover''' - Manipulates rollover files

ROLLOVERFILE/A, SET/S, REALSIZE/K/N, VIRTUALSIZE/K/N, ROLLPOINTER/K/N
 <nowiki>
ROLLOVERFILE - The file to manipulate
SET          - If supplied realsize, virtual size and rollpointer are set,
               otherwise they are read.
REALSIZE     - The size the file takes on disk in bytes. This is the rollover
               size plus 1. It must be a multiple of the block size, otherwise
               it will be rounded down to the first valid size. Changing this
               value will clear the virtual size and the rollpointer, unless
               specified otherwise.
VIRTUALSIZE  - The virtual size is the number of bytes that are in use. The
               maximum virtual size is the rollover size. Changing this value
               will clear the rollpointer, unless specified otherwise.
ROLLPOINTER  - The rollpointer is the 'start of file' offset. Changing this
               value will clear the virtual size, unless specified otherwise.
</nowiki>

Examples:
 1.Workbench:> setrollover foo
 real size = 1024
 virtual size = 400
 rollpointer = 12

 1.Workbench:> setrollover foo set virtualsize 200 rollpointer 220
 real size = 1024
 virtual size = 200
 rollpointer = 220

 1.Workbench:> setrollover foo set realsize = 512
 real size = 512
 virtual size = 0
 rollpointer = 0