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QUEUE
Purpose
QUEUE
expression
;
QUEUE appends the string resulting from expression to the tail of the external data queue. That is, it is
added FIFO (First In, First Out).
If you do not specify expression, a null string is queued.
Note: The REXX/CICS implementation of the external data queue is the program stack. The language
processor reads a line from the program stack. If the program stack is empty, a terminal read
occurs. The program stack for you is in an RLS queue named \SYSTEM\rexxtnum\*PROGSTACK*
where rexxtrnum is an internal REXX task number.
Example:
a='Toft'
queue a 2 /* Enqueues "Toft 2" */
queue /* Enqueues a null line behind the last */
The QUEUED built-in function (described on page 190) returns the number of lines currently in the
external data queue.
QUEUE
160
CICS TS for VSE/ESA: REXX Guide