[gnome-db] 2 issues with GdaConnection
- From: Mark Johnson <mrj001 shaw ca>
- To: gnome-db list <gnome-db-list gnome org>
- Subject: [gnome-db] 2 issues with GdaConnection
- Date: Fri, 21 Mar 2008 09:44:18 -0600
On page:
http://library.gnome.org/devel/libgda-4.0/3.99/GdaConnection.html
for function gda_connection_open_from_dsn, we find:
" If a new GdaConnection
<http://library.gnome.org/devel/libgda-4.0/3.99/GdaConnection.html> is
created, then the caller will hold a reference on it."
This seems to imply that if an existing connection was returned from a
pool of connections, then the caller does not hold a reference on it.
Therefore, the caller should call g_object_unref only in the case when a
new connection is created.
Question: How does one tell if a new connection was created?
On page:
http://library.gnome.org/devel/libgda-4.0/3.99/connections.html
We find this statement:
" Closing the connection can be ordered using gda_connection_close ()
<http://library.gnome.org/devel/libgda-4.0/3.99/GdaConnection.html#gda-connection-close>,
or is automatically done when the connection object is destroyed (as is
the case in the example abive when g_object_unref() is called with the
connection as argument)."
When I called g_object_unref on the connection, expecting it to close
automatically, I found the following in the PostgreSQL log:
issue513149_dbLOG: unexpected EOF on client connection
issue513149_dbLOG: disconnection: session time: 0:00:00.268
user=issue513149_user database=issue513149_db host=127.0.0.1 port=37580
When I added a call to gda_connection_close prior to the g_object_unref,
the unexpected EOF message did not appear. It seems that with
PostgreSQL, the connection is not automatically closing.
Mark
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