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fstat() is an old C standard library function that was intended for working with stream files in the *nix file system. As such, the IBMi implementation across other system objects, including *FILE objects is going to try to emulate the behavior on IFS files. One of the common usages of fstat() is to determine the amount of space an object occupies. That includes, of course, the deleted records in a *FILE object.

To get more detailed information about a *FILE object try using the _Ropnfbk() function. It'll give you a pointer to a data area much like the open feedback area that would be available if you declared the file in an RPG F spec. _Ropnfbk() takes the same file pointer parameter you pass to fstat().

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-
bounces@xxxxxxxxxxxx] On Behalf Of TheBorg
Sent: Tuesday, September 24, 2013 9:50 AM
To: midrange-l@xxxxxxxxxxxx
Subject: File size using fstat()

V5R4

I am writing an RPGIV program which uses the Unix-type functions to read
and
write data along with the QlgTransformUCSData API to convert
database/stream
files from UTF16BE to other Unicode representations.

I just discovered that when I use the Unix-type function fstat() to retrieve
the file size of a IBM i database file, the returned size value includes the
space occupied by the deleted records, which I do NOT want.

Has anyone else dealt with this issue, and how?

-sjl

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