Hi Scott, >From experience I have found that BPXWDYN is not the easiest beast to control. Whilst I do program in Assembler, it has to be acknowledged that not everybody does and hence more prolific languages with calls to existing functionality should be favoured.
I personally think that BPXWDYN is the route to take in preference to
calling TSO from within COBOL, and hopefully the code below may be of use.
I am not sure why there was an issue with FREE as one test I conducted was
creating the TEMPFLE data set as a temporary using default DISP processing,
and the FREE caused the data set to be deleted prior to the STEP WAS EXECITE
COND CODE 0000 message line.
Note that I ensured that BPXWDYN was invoked dynamically, not statically
liked via IEWL.
Good luck -
IDENTIFICATION DIVISION.
PROGRAM-ID. BPXWDYNT.
AUTHOR. T.R.SAMBROOKS.
INSTALLATION.
DATE-WRITTEN. 16TH FEB 2012.
ENVIRONMENT DIVISION.
CONFIGURATION SECTION.
SKIP1
*----------------------------------------------------------------*
* ROUTINE TO DEMONSTARTE THE USE OF BPXWDYN. *
*----------------------------------------------------------------*
SKIP3
INPUT-OUTPUT SECTION.
FILE-CONTROL.
SELECT TEST-OUT ASSIGN TEMPFLE.
DATA DIVISION.
FILE SECTION.
FD TEST-OUT RECORDING MODE IS F
LABEL RECORDS ARE STANDARD
BLOCK CONTAINS 0 RECORDS
RECORD CONTAINS 80 CHARACTERS
DATA RECORD IS TEST-REC.
01 TEST-REC PIC X(80).
EJECT
WORKING-STORAGE SECTION.
SKIP1
01 EXTERNAL-ROUTINES.
03 WS-BPXWDYN PIC X(8) VALUE 'BPXWDYN '.
01 ALLOC-FILE.
03 PIC S9(4) COMP VALUE +108.
03 PIC X(45) VALUE
'ALLOC FI(TEMPFLE) DA(PIONEER.TEST.SYSIN) NEW '.
03 PIC X(37) VALUE
' SPACE(1,1) TRACKS CATALOG LRECL(80) '.
03 PIC X(26) VALUE
' RECFM(F,B) BLKSIZE(3200) '.
01 FREE-FILE.
03 PIC S9(4) COMP VALUE +16.
03 PIC X(16) VALUE
'FREE FI(TEMPFLE)'.
01 WS-TESTREC.
03 PIC X(80) VALUE
' PRINT INFILE(TEMPLE) CHAR COUNT(10) '.
EJECT
PROCEDURE DIVISION.
SKIP1
AA-MAIN-LINE SECTION.
SKIP1
CALL WS-BPXWDYN USING ALLOC-FILE.
DISPLAY 'ALLOC CODE' RETURN-CODE UPON SYSOUT.
OPEN OUTPUT TEST-OUT.
WRITE TEST-REC FROM WS-TESTREC.
CLOSE TEST-OUT.
CALL WS-BPXWDYN USING FREE-FILE.
DISPLAY 'FREE CODE' RETURN-CODE UPON SYSOUT.
SKIP1
AA-MAIN-LINE-EOJ.
GOBACK.
SKIP3
*----------------------------------------------------------------*
* THIS IS THE PHYSICAL END OF THE SOURCE CODE PROGRAM - BPXWDYNT *
*----------------------------------------------------------------*
Kind Regards - Terry
Director
KMS-IT Limited
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