Re: Service program signatures, and how to avoid unnecessarily recompiling programs that call service programs

As long as the interface has not changed, you will not need to recompile.

You need to create a current listing your procedures. then when you add a
new procedure, your current becomes your previous and your new current is
at the top.

This will result in two signatures. Any program recompiled will get the
current signature. The older programs will use the previous signature.

STRPGMEXP PGMLVL(*CURRENT)
EXPORT SYMBOL('XVUSRQ_Open')
EXPORT SYMBOL('XVUSRQ_Close')
EXPORT SYMBOL('XVUSRQ_Put')
EXPORT SYMBOL('XVUSRQ_Get')
EXPORT SYMBOL('XVUSRQ_GetNumberOfMessages')
ENDPGMEXP

STRPGMEXP PGMLVL(*PRV)
EXPORT SYMBOL('XVUSRQ_Open')
EXPORT SYMBOL('XVUSRQ_Close')
EXPORT SYMBOL('XVUSRQ_Put')
EXPORT SYMBOL('XVUSRQ_Get')
ENDPGMEXP


On Wed, Sep 13, 2017 at 12:01 PM, David Gibbs <david@xxxxxxxxxxxx> wrote:

On 9/13/2017 12:11 PM, Dan wrote:

I've learned that I should add new exports only/always to the end of
an existing export list in my binder source. My understanding is
that, by doing so, programs that call existing procedures in the
binder source do not need to be recompiled. Correct?

Add a SIGNATURE to the STRPGMEXP line of your binder source.

That way programs that bind to the service program won't need to be
recompiled (as long as new procedures are always added to the end of the
binder source).

david

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