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From:gary clark Date:December 31 2006 3:07pm
Subject:Re: using the 'use' query.
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Hello,

I still believe there is a small leak. I see 8K
increments not everytime
the below code is called. It sounds like a race
condition in mysqlpp.
Has anyone attempted to 'purify' this code to validate
whether the methods leak? When the 'use' statement is
not used and I dont cycle through the table rows which
results in an eventual exception 'end of results' then
there is no leak.

I'm going to try to get a version of purify  next week
and run this
code through it.

Thanks,
Garyc
--- gary clark <burslem2001@stripped> wrote:

> 
> --- gary clark <burslem2001@stripped> wrote:
> 
> > 
> > Thanks Alex for the quick response. I see end of
> > "end
> > of results" message being dumped out. I can that
> it
> > cycle through all the possible rows and collect
> the
> > data. But catching "end of results"? and the leak?
> > 
> > Any ideas.
> > 
> > Thanks,
> > Garyc
> > 
> > 
> > --- Alex Burton <alexibu@stripped> wrote:
> > 
> > > substitute
> > > cout << er.what() << endl;
> > > for
> > > >    cout << "Failed Dude! " << endl;
> > > and you might know what the exception was
> > > 
> > > On 30/12/2006, at 9:58 AM, gary clark wrote:
> > > 
> > > >
> > > > Hello,
> > > >
> > > > Running mysqlpp 2.1.1 on Windows XP and 5.0
> > mysql.
> > > >
> > > > Been trying tracking down what appears to be a
> > > leak. A
> > > > wee bit bizarre.
> > > >
> > > > I have a column in a mysql database called
> > > messageData
> > > > is a VARCHAR(4096).
> > > >
> > > > I have the following code extract:
> > > >
> > > > mysqlpp::Query query = _con.query();
> > > > mysqlpp::ResUse res = query.use();
> > > >
> > > > mysqlpp::Row row;
> > > > try {
> > > >
> > > >       if (res)
> > > >       {
> > > >          while(row=res,fetch_row())
> > > >          {
> > > >          }
> > > >       }
> > > > }
> > > > catch (exception & er)
> > > > {
> > > >    cout << "Failed Dude! " << endl;
> > > >    return 0;
> > > > }
> > > >
> > > > Seems straightforward. It always ends up going
> > to
> > > > "Failed Dude".
> > > > It then pops a leak. I commented out the above
> > > code
> > > > and it no longer leaks.
> > > >
> > > > Can somebody be so kind to enlighten me on
> what
> > I
> > > > assume to be misuse of the above so I can
> avoid
> > > the
> > > > leak.
> > > >
> > > > Thanks,
> > > > Garyc
> > > >
> > > >
> > > >
> > > > --  
> > > > MySQL++ Mailing List
> > > > For list archives:
> > http://lists.mysql.com/plusplus
> > > > To unsubscribe:   
> > > http://lists.mysql.com/plusplus? 
> > > > unsub=alexibu@stripped
> > > >
> > > 
> > > 
> > 
> > 
> 
> 

Thread
error C2065: 'ulong' : undeclared identifier during buildIan Miller29 Dec
  • Re: error C2065: 'ulong' : undeclared identifier during buildWarren Young29 Dec
    • using the 'use' query.gary clark29 Dec
    • Re: error C2065: 'ulong' : undeclared identifier during buildIan Miller30 Dec
Re: using the 'use' query.gary clark30 Dec
Re: using the 'use' query.gary clark31 Dec
  • Re: using the 'use' query.gary clark2 Jan
    • Re: using the 'use' query.Matt Dargavel3 Jan
      • Re: using the 'use' query.gary clark3 Jan
      • Re: using the 'use' query.gary clark3 Jan
      • Re: using the 'use' query.gary clark3 Jan
        • Re: using the 'use' query.Warren Young3 Jan
          • Re: using the 'use' query.gary clark3 Jan
            • Re: using the 'use' query.Warren Young5 Jan
              • Re: using the 'use' query.gary clark5 Jan
                • Conversion Errorgary clark6 Jan
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