Re: API

[Scott Klement <klemscot@xxxxxxxxxxxx>]

Why are you doing it that way?  You can greatly improve the efficiency of
your programs by just creating the space once, and then accessing it with
a pointer.

Even if you did have a procedure to call instead of a program, it wouldn't
make a big difference, since the process of creating a new object on disk
(which is what a user space is) isn't very fast.


On Thu, 26 Sep 2002, Uma Balasubramanian wrote:
>
> the two calls are being made many times ... in the sense, we have a
> procedure in a service program is using these user space APIs and the
> procedures is being called from many programs (both online and batch) many
> times.
>
> Scott Klement <klemscot@klements.com>@midrange.com on 09/26/2002 12:52:34
> PM
>
> On Thu, 26 Sep 2002, Uma Balasubramanian wrote:
> >
> > Are APIs (I am looking for User space API - in particular) available as
> > 'procedure's? In other words, when I call a User Space API in my RPGLE
> > program, through I use CALLP, it is a program. Are procedures available
> for
> > these ?
> >
>
> There are many APIs that are implemented as procedures in service
> programs.  There are many others that are implemented as programs instead.
> The advantage of procedures is that they're faster, the advantage of
> programs is that they're usable from OPM applications.
>
> The User Space APIs, as you've already noticed, are programs.  This is a
> good thing, because it means you can call them from more different
> environments.
>
> Speed isn't really important for the User Space APIs, since you only need
> to make two calls.   One to create the space, and one to get a pointer to
> the space.   Once you've gotten the pointer, you don't need to call the
> APIs.... so speed isn't really an issue.
>