[Library] [Contents] [Revisions] [Prev Topic] [Next Topic] [Search] [Search Results] [Prev Topic Match] [Next Topic Match] [Notes] [List Notes] [Print] [Download] [Help]

3.4.6.2 CALL Command

 






   Service aids, utilities, and other programs obtaining their input from an 
   allocated file such as SYSIN, must have the input in a created data set or 
   a job stream data set that is created with a DD * or a DD DATA statement. 
   After the data set has been created and allocated, the CALL command can be 
   used to execute the program that accesses the SYSIN data. Figure 11 
   illustrates the allocation and creation of input data sets. 





 



     //examp1   exec    pgm=ikjeft01,dynamnbr=20 
     //systsprt dd      sysout=a 
     //systsin  dd      * 
       PROFILE PREFIX(yourid) 
       ALLOCATE FILE(sysprint) DATASET(*) 
       ALLOCATE FILE(sysin) ALTFILE(inputdd) 
       CALL prog1 
       ALLOCATE FILE(sysin) ALTFILE(inputdd2) REUSE 
       CALL prog2 
       FREE ALL 
     //inputdd  dd     * 
       **input to prog1** 
     //inputdd2 dd     * 
       **input to prog2** 
     /* 




 



   Figure 11. Allocating and Creating Input Data Sets 






   In the preceding example, the second allocate statement allocates the 
   SYSIN data for PROG1, and specifies that the data is defined by the DD 
   statement named INPUTDD. The third allocate statement allocates the SYSIN 
   data for PROG2, and specifies that the data is defined by the DD statement 
   named INPUTDD2. DD statements INPUTDD and INPUTDD2 use in-stream data as 
   input. 



   Note:  Allocating the input file to a terminal results in an I/O error 
          message.  Termination occurs when the program tries to get input 
          from the terminal. 





[Prev Topic]
[Next Topic]
    © Copyright IBM Corp. 1988, 2000

IBM BookManager® BookServer Copyright 1989, 1999 IBM Corporation.  All rights reserved.






Return to library:
[
OS/390 | 
TPF |
VM |
VSE | 
IBM Hardware |
S/390 Redbooks |
RS/6000 SP 
]

Glossary - IBM Dictionary of Computing


How to:
[
Order publications | 
Contact OS/390
]