Re: [gnome-db] 2 issues with GdaConnection

[Mark Johnson <mrj001 shaw ca>]

Vivien Malerba wrote:
> >  >
> >  I don't think I have 2 references to the connection.  I've attached a
> >  current snapshot of my file to let you see it.  It's a work in progress
> >  for a test case for one of my bugs.
> >     
>
> The problem comes from the fact that when you call
> g_object_unref(pConn), there is still an object holding a reference on
> the pConn object, it is the GdaDataModel returned from the
> gda_connection_statement_execute_select() function (which you ignore
> in your example but still exists). Here is attached your example,
> modified to show the reference count on the pConn object.
>
> Cheers,
>
> Vivien
>   
Thanks, that fixed it.  The g_object_unref now does close the 
connection, so no unexpected EOF in the PostgreSQL log. 

This is something I find difficult in glib/gnome programming in general 
- how to know when something needs to be unref'ed, and when something 
else might be keeping a reference to your object.  For example, nothing 
in the gda_connection_statement_execute or 
gda_connection_statement_execute_select documentation indicates that the 
connection reference count will be incremented.  The GdaDataModel page 
does not even contain the word connection.

Mark