s32 mfsRamGetVolumeRC(void)

Arguments

None

Return value

Update counter value (a negative value is an error)

Function

Obtains update counter value

Description

This function obtains the update counter value. The update counter is incremented when file, directory, or disk information has been changed in some way. Therefore, it can be used, for example, as a random number seed or to check whether or not the disk contents have been changed illegally. The update counter is a 16-bit value. The update counter only exists in the RAM area.

Main errors

MFS_ERR_NOTMFSDISK	Not an MFS-format disk The disk ID's disk use is not 1, or the header is different.
MFS_ERR_VERSION	Different version disk