IBM S544-5285-01 manual RECORD@ Bytes, Sample Output Record Exit Dsect

PARMLIST	DSECT		Parameters for the output record exit
WORK@	DS	A	Address of 16-byte static work area
PFATTR@	DS	A	Address of print-file-attribute information
RECORD@	DS	A	Address of the record to be written
RECORDLN	DS	H	Length of the output record
REQUEST	DS	X	Delete or process the record
EOF	DS	C	Last call indicator

Figure 32.		Sample Output Record Exit DSECT
The	address of the control block containing the		following parameters i
the	output	record exit in a standard parameter	list pointed to by
WORK@	(Bytes	1–4)

A pointer to a static, 16-byte memory block. The exit program can

parameter to save information across calls				(for	example, pointers t
areas). The 16-byte work area is			aligned on a full word boundary
initialized	to binary	zeros prior	to the	first call. The user-wri
must provide	the code	required to	manage	this	work area.

PFATTR@ (Bytes 5–8)

A pointer to the print-file-attribute data structure. See “Attribut Print File” on page 130 for more information on the format of this and the information contained in it.

RECORD@ (Bytes 9–12)

A pointer to the first byte of the output record. The record buffer (where KB equals 1024 bytes). The buffer resides in st ACIF, but the exit program is allowed to modify the output recor

RECORDLN (Bytes 13–14)

Specifies the length, in bytes, of the output record. If the modified, this parameter must also be updated to reflect the a record.

REQUEST (Byte 15)

Specifies how the record is to be processed by ACIF. On entry program, this parameter'00 '.is WhenX the exit program returns control to ACIF, this parameter must have the'00 ' valueor'01X',X where:

X '00 ' Specifies that the record be processed by ACIF.

X '01' Specifies that the record be ignored by ACIF.

A value of'00 'X on entry to the exit program specifies that the r

processed. If you want to ignore the record,REQUEST changebyte valuthe to 'X01'. Any value greater'01than' is Xinterpreted'00 ',asandX the exit processes the record.

Note:	Only	one	record can	reside in		the	buffer	at	any	time.
EOF (Byte	16)
An end-of-file (EOF) indicator. This indicator is a								1-byte		characte
signals when ACIF has finished					writing	the	output	file.
When EOF is signalled (EOF value = “Y”), the last								record		has alrea
presented		to	the output	exit.	The	pointer RECORD@		is	no	longer val

Chapter 9. User Exits and Attributes of the Input Print File in 127OS/390, MVS, VM,