[unixODBC-support] Memory leak in SQLFetch?
ssaunders at docucorp.com
Tue Dec 14 15:43:54 GMT 2004
>Craddock, Richard C wrote:
>> Ladies and Gentlemen:
>> I have a reproducible memory leak with the attached code. There are
>> exactly 20160 elements that should be returned from the query. After
>> running this program there is nearly 3Mb of un-freed memory. If I
>> comment out the SQLFetch() calls then the memory leak goes away. I
>> suspect that it may have something to do with how I am using unixODBC
>> rather then a memory leak in unixODBC. But I have stared at the code
>> for quite sometime to no avail. Has anyone had a similar problem?
>> Have I made a mistake somewhere? I appreciate your time and assistance.
>> Cameron Craddock
> From a quick read, it looks ok, but it does depend on the driver as
>well, what driver is this using ?
>When you have these sorts of problems, its often worth just trying the
>same thing with another database/driver to see if the leak remains.
What version of unixODBC and OS are you using for this memory leak test?
We see a similar memory leak problem with unixODBC v2.2.9 regardless of DB
driver (DB2 or MyODBC/MySQL. We have only tested this version of unixODBC
on AIX v5.2. The same tests on unixODBC v2.2.8 on Linux/RedHat does not
appear to leak.
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