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

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

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<strong>NetView</strong> Pipelines Device Drivers<br />

302 <strong>Programming</strong>: <strong>Pipes</strong><br />

NCCF NETVIEW NTVAA OPER1 04/29/10 15:00:01<br />

* NTVAA MYC<br />

’ NTVAA<br />

DSI606I DISPLAY OF PF/PA KEY SETTINGS FOR NCCF<br />

DSI607I KEY ----TYPE---- -----------COMMAND------------ SET-APPL<br />

DSI608I PA1 IMMED,IGNORE RESET NETVIEW<br />

DSI608I PA2 IMMED,IGNORE AUTOWRAP TOGGLE NETVIEW<br />

DSI608I PA3 IMMED,IGNORE RETRIEVE AND EXECUTE NETVIEW<br />

DSI608I PF1 IMMED,APPEND HELP NETVIEW<br />

DSI608I PF2 IMMED,APPEND GO NCCF<br />

DSI608I PF3 IMMED,IGNORE RETURN NETVIEW<br />

DSI608I PF4 IMMED,APPEND DISPFK NETVIEW<br />

DSI608I PF5 IMMED,APPEND BROWSE LOG NETVIEW<br />

C NTVAA RETURN CODE = 0<br />

Processing steps:<br />

1. The STEM stage reads the variables named STAGE1 through STAGE5 into the<br />

pipeline, where each one becomes a message. By analyzing variable STAGE0, the<br />

STEM stage is aware that there are 5 stage variables to be read.<br />

2. The COLLECT stage gathers the messages into an MLWTO.<br />

3. The INTERPRT stage reads the MLWTO, creates and invokes a pipeline<br />

specification, which is the inner pipeline in the PIPE-within-a-PIPE structure.<br />

The last stage (CONSOLE) of this pipeline returns output to the outer pipe.<br />

4. The SAFE stage writes the messages output from the invoked pipeline into a<br />

safe named MYKEYS.<br />

5. The CONSOLE stage displays the pipeline messages.

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