If there are others with a SHARED ENQ, attempting a RET=CHNG will
either put you into a wait (possibly triggering a deadly embrace if
you hold another SHR or EXC ENQ that some other task wants to go to
EXC status on) or return a failure RC and require you to recover by
attempting it again.
Actually, RET=CHNG will always return with a return code (0 or other).
The RET= parm implies this. The only way to wait is an ENQ with no
RET=, which obviously will not do the CHNG.
--
Bruce A. Black
Senior Software Developer for FDR
Innovation Data Processing 973-890-7300
personal: [EMAIL PROTECTED]
sales info: [EMAIL PROTECTED]
tech support: [EMAIL PROTECTED]
web: www.innovationdp.fdr.com
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