Oohh... niiice....
Alan Altmark wrote:
I would be remiss if I didn't point out that CMS has a VSAM API redirector
in it. Look at the SUBSYS operand of FILEDEF. We added it in 1984 or
thereabouts and the SQL/DS product had hook to let it process VSAM
requests. I don't know if DB2 for VM/VSE still supports that.
Look at "Interface to an Alternate VSAM Emulator" in the CMS Application
Development Guide for Assembler. Your routine gets control on OPEN,
CLOSE, and CLOSE TYPE=T with the address of the ACB. On OPEN your routine
fills in the read/write vectors in the ACB.
Alan Altmark
z/VM Development
IBM Endicott
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