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E18 user exit list z/OS DFSORT Application Programming Guide SC23-6878-00 |
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The VSAM user exit list must be built using the VSAM EXLST macro instruction giving the addresses of your routines handling VSAM user exit functions. VSAM branches directly to your routines which must return to VSAM via register 14. Any VSAM user exit function available for input data sets can be used except EODAD. If you need to do EODAD processing, write a LERAD user exit and check for X'04' in the FDBK field of the RPL. This will indicate input EOD. This field must not be altered when returning to VSAM because it is also needed by DFSORT. For details, see z/OS DFSMS Macro Instructions for Data Sets. Figure 1 shows an example of code your program can use to return control to DFSORT. Figure 1. E18 User Exit Example
1X'85'= X'80' plus X'
05', where:
For more information, refer to z/OS DFSMS Using Data Sets. |
Copyright IBM Corporation 1990, 2014
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