define what a data queue is along with a brief example of what it may be used for?
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Answer Posted / aruna
Data queues provides communication between programs by calling API's QSNDDTAQ and QRCVDTAQ along with parameters like data queue name, library in which data queue exists, variable to store the number of characters to be sent, variable to store the information to be sent. We can send the same data queue to the many programs.
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Service Program : S1 Modules in S1 : M1 M1 having two procedures : ADD, SUB Current Binder Language STRPGMEXP PGMLVL(*CURRENT) EXPORT SYMBOL("ADD") EXPORT SYMBOL("SUB") ENDPGMEXP Doubt: I need to add one new Module to the Service Program M2 having one procedure ‘MULT’ How to add this new module to the service program S1 ? If I need to recreate the service program again, Do I need to mention the Module M1 again while recreating along with new Module M2? There is no Binding Directory. Binder language structure will be like this STRPGMEXP PGMLVL(*CURRENT) EXPORT SYMBOL("ADD") EXPORT SYMBOL("SUB") EXPORT SYMBOL("MULT") ENDPGMEXP STRPGMEXP PGMLVL(*PREVIOUS) EXPORT SYMBOL("ADD") EXPORT SYMBOL("SUB") ENDPGMEXP
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