IBM Tivoli NetView for z/OS Programming: Pipes - IBM notice

PIPE < (From Disk)
PIPE < (From Disk)
Syntax
(From Disk):
<
DSIPARM.
member
ddname.
*.
dsname
INCL DISKONLY
Command Description
The < (From Disk) stage reads data from DASD into the pipeline. The records read
from DASD are single-line messages in the pipeline.
Streams
278 Programming: Pipes
A return code indicating the success or failure of the stage is passed to the
secondary output stream if one is connected. These return codes are described
below. If a secondary output stream is connected, failure (such as no such member)
does not terminate the pipeline or cause error messages.
Note: The < (From Disk) stage sets the buffer's origin field (HDRDOMID) to be the
member name. For example, if reading a panel member and then displaying
data from the panel, the HDRsDOMID then contains the name of the panel.
When dsname is specified as a fully qualified data set name within single quotation
marks, this stage is processed as a QSAM (read) stage. See the help for the QSAM
stage (“PIPE QSAM” on page 196) instead of the help text below for details on
how QSAM (read) processing works.
Stream Type Number Supported
Input 0
Output 2
Termination Conditions
The < (From Disk) stage terminates when end-of-file is reached or when the
primary output stream is disconnected.
Operand Descriptions
*. Specifies that the NetView system is to search all standard DDNAMEs for the
specified member name. The following libraries are searched, if allocated, in the
following order:
1. DSICLD
2. DSIPARM
3. DSIPRF
4. DSIVTAM
5. DSIMSG
6. CNMPNL1
7. BNJPNL1