- filenum
16-bit signed integer by value (required)
Passes the file number of the file for which information
is requested.
- formaldesig
character array (optional)
Returns the actual designator of the file being referenced,
in the following format:
filename.groupname.accountname |
The formaldesig array must be at least 28 bytes in length. When the actual
designator is returned, unused bytes in the array are filled with blanks
on the right. A nameless file returns an empty string.
- foption
16-bit unsigned integer by reference
(optional)
Returns seven different file characteristics by setting
corresponding bit groupings. The file characteristics are those
specified for foptions in the FOPEN intrinsic.
- aoption
16-bit unsigned integer by reference
(optional)
Returns up to seven different access options represented
by bit groupings as described for the aoptions parameter of FOPEN.
- lrecsize
16-bit signed integer by reference (optional)
Returns the logical record size associated with the
file:
If the file was created as a binary
file, this value is positive and expresses the size in halfwords.
If the file was created as an ASCII file, this value
is negative and expresses the size in bytes.
- devtype
16-bit signed integer by reference (optional)
Returns the type and subtype of the device being used
for a KSAM, RIO, circular, or message file, or devices such as a
tape drive, printer, or terminal where bit (0:8) indicate device
subtype, and bit (8:8) indicate device type. For standard disk files,
bit (8:8)=00000011 and bit (0:8)=00001000 (indicate a 7933/35 disk
drive).
- ldevnum
16-bit unsigned integer by reference
(optional)
Returns the logical device number (ldev) associated
with the device where the file label resides:
If the file is a disk file, ldevnum is the location of the file label. (File data may
reside on the same device as the file label.)
If the file is spooled, ldevnum is a virtual device number that does not correspond
to the system configuration I/O device list.
If the file is located on a remote computer, linked
by a DS point-to-point or X.25 link, the left eight bit (0:8) are
the logical device number of the distributed system (DS) device.
If the remote computer is linked by NS 3000/XL,
the left eight bit (0:8) are the remote environment of the connection.
The right eight bit (8:8) are the ldev of the device on the remote
computer where the file label resides.
If the DS device for the RFA or the LDEV is 0, then
ldevnum returns a 0.
- hdaddr
16-bit unsigned integer by reference
(optional)
Returns 2048. Maintained to provide backward compatibility
with MPE V/E-based systems.
- filecode
16-bit signed integer by reference (optional)
Returns the file code of a disk file.
- lrecptr
32-bit signed integer by reference (optional)
Returns the current physical record pointer setting.
Remember that physical record numbers can begin with zero or one,
depending on how the file was built.
- eof
32-bit signed integer by reference (optional)
Returns the pointer setting of the last logical record
currently in the file (equivalent to the number of logical records
currently in the file). If the file does not reside on disk, this
value is zero. For interprocess communication (IPC), when a call
to FCONTROL with itemnum=46 is in effect, the number of records returned in eof includes open, close, and data records.
- filelimit
32-bit signed integer by reference (optional)
Returns a number representing the last logical record
that could exist in the file (the physical limits of the file).
If the file does not reside on disk, this value is zero.
- logcount
32-bit signed integer by reference (optional)
Returns the total number of logical records passed
to and from the program during the current file access.
- physcount
32-bit signed integer by reference (optional)
Returns the total number of physical I/O operations
performed within the process, against the file, since the last FOPEN/HPFOPEN call.
- blksize
16-bit signed integer by reference (optional)
Returns the file block size:
If the file is binary, the value is
positive and the size is in halfwords.
If the file is ASCII, the value is negative and
the size is in bytes.
- extsize
16-bit unsigned integer by reference
(optional)
Maintained to provide backward compatibility with MPE V/E-based systems.
- numextent
16-bit signed integer by reference (optional)
Maintained to provide backward compatibility with MPE V/E-based systems.
- userlabels
16-bit signed integer by reference (optional)
Returns the number of user labels defined for the file
during creation. If the file is not a disk file, this number is
zero. When an old file is opened for overwrite output, the value
of userlabels is not reset, and old user labels are not destroyed.
- creatorid
character array (optional)
Returns the name of the file creator (8-character array).
If the file is not a disk file, blanks are returned.
- labaddr
32-bit signed integer by reference (optional)
Returns a zero. Maintained for backward compatibility
with MPE V/E-based systems.
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