Changing the Session Function Streams
The following figure summarizes the session functions and their attributes. You cannot specify an input stream for the message (MSG) function. Therefore, this area has been left blank in the figure below.
Intensity (INT) refers to the brightness at which the information
is displayed in a stream.
- 0
- The information in the stream is not displayed. You can see the line that the information occupies, but the information itself is invisible.
- 1
- The information in the stream is displayed at normal intensity.
- 2
- The information in the stream is highlighted.
ALARM indicates whether the terminal's audible alarm sounds when information enters the stream.
| Session Function | Input Stream | Output Stream | |||||
|---|---|---|---|---|---|---|---|
| Name | Alarm | Where Copied | INT | Name | INT | Alarm | |
| TSO/E | TSOIN | NO | TSOOUT | 2 | TSOOUT | 1 | NO |
| SM | SMIN | NO | SMOUT | 0 | SMOUT | 2 | YES |
| MSG | - | - | - | - | TSOOUT | 2 | YES |
You can change the input or output streams for any of the session
functions, any attributes relating to those streams, and whether the
alarm is to sound. For example, you might want your messages to go
to the MESSAGE stream instead of the TSOOUT stream or you might not
want the TSOIN stream copied to the TSOOUT stream. With the CHANGE.FUNCTION
command, you can specify:
- The output stream for a session function and the intensity at which the information is to be displayed
- The input stream for a session function
- Whether information from an input stream is to be copied to an output stream and the intensity at which the information is to be displayed.
- Whether the audible alarm is to sound when information enters an input or output stream.
The commands that define the streams and their characteristics
for each of the session functions in the default environment are:
CHANGE.FUNCTION TSO INPUT(TSOIN) COPY(TSOOUT 2)
OUTPUT(TSOOUT 1) ALARM(NO)
CHANGE.FUNCTION MSG OUTPUT(TSOOUT 2) ALARM(OUTPUT)
CHANGE.FUNCTION SM INPUT(SMIN) COPY(SMOUT 0)
OUTPUT(SMOUT 2) ALARM(OUTPUT)For more information, see the syntax description of the CHANGE.FUNCTION command in z/OS TSO/E Command Reference.