User exit u0191 sets system execution lock number 9. If the lock takes place successfully, the next physical line of the Proc is skipped. When it does not lock successfully, the line immediately following the user exit is performed.
Example(s)
PQ U0191 XUnable to lock at present... OHere we go... |
See Also
lock Statement, Port Number, Proc Processor User Exits, u1191 User Exit, u2191 User Exit, u3191 User Exit