Guardian Procedure Calls Reference Manual

logical-info-len
output
INT .EXT:ref:1
returns the actual length (in bytes) of the buffer pointed to by logical-info.
This parameter must be present if logical-info is present.
primary-info
output
INT .EXT:ref:*
if present and if primary-info-maxlen is not 0, points to a buffer that returns a set of
physical device attributes obtained from the primary I/O process that supports the specified
device. The attribute values are returned in a contiguous array.
If this parameter is present, primary-info-maxlen and primary-info-len must also
be present.
For a description of the attributes returned in primary-info, see Device Attributes and Value
Representations (page 304).
primary-info-maxlen
input
INT:value
specifies the length (in bytes) of the buffer pointed to by primary-info. If the buffer length
is too short for the full set of device attributes, the procedure returns as many values as will fit
in the buffer.
This parameter must be present if primary-info is present.
primary-info-len
output
INT .EXT:ref:1
returns the actual length (in bytes) of the buffer pointed to by primary-info.
This parameter must be present if primary-info is present.
backup-info
output
INT .EXT:ref:*
if present and if backup-info-maxlen is not 0, points to a buffer that returns a set of physical
device attributes obtained from the backup I/O process that supports the specified device. The
attribute values are returned in a contiguous array.
If this parameter is present, backup-info-maxlen and backup-info-len must also be
present.
The set of attributes for which values are returned in backup-info is identical to the set
returned in primary-info. For a description of the attributes returned in backup-info, see
Device Attributes and Value Representations (page 304).
backup-info-maxlen
input
INT:value
specifies the length (in bytes) of the buffer pointed to by backup-info. If the buffer length is
too short for the full set of device attributes, the procedure returns as many values as will fit in
the buffer.
This parameter must be present if backup-info is present.
302 Guardian Procedure Calls (D-E)