Re: Writing to an IFS file

["James H H Lampert" <jamesl@xxxxxxxxxxx>]

> Is there any free wrappers for writing to the IFS? We are going to be
> comming up on a project, and I would like to avoid writting that from
> scratch if I don't have to. Does the iSeries Toolkit have something like
> that?

The only times I've had to access IFS files from an RPG main program, it
was in parsers that already required scanners to be written in C, and so I
just incorporated the IFS access directly into the C module that contained
the aforementioned scanner. Using the non-UNIX-type I/O calls allowed me
to use an ordinary source member to test the scanner, and eventually the
parser, then switch to IFS access simply by recompiling the scanner module
with the *IFSIO option. But generally, when using a source member for
initial testing isn't an issue, I agree with Bob on preferring the
UNIX-type I/O for general use with IFS files.

Note that, from C, if you need to use both QSYS.LIB database I/O and IFS
I/O in the same module (or even just use both from C in different modules
of the same program), you MUST use the UNIX-type I/O calls for all IFS
access. (There doesn't, however, seem to be any problem if all QSYS.LIB
database access is from RPG).

--
JHHL