[packagekit] Problem running example from FAQ

[Dorian Perkins]

Hi Richard,

I actually did have the main braces. Sorry for not mentioning that. I did
say I was using "exactly" the code from the FAQ, which was inaccurate.

I was still experiencing the following error which caused a SegFault:

** (process:12751): CRITICAL **: dbus_g_proxy_call: assertion
`DBUS_IS_G_PROXY (proxy)' failed
Segmentation Fault

After reading over some DBUS help docs, I found the following function fixed
that problem:

g_type_init ();

I added that after the variable declarations and now the code works. I am
assuming you may need to add that to your FAQ example.

Good day,
Dorian

On Tue, Aug 5, 2008 at 11:23 PM, Richard Hughes <hughsient at gmail.com> wrote:

> On Tue, 2008-08-05 at 15:57 -0700, Dorian Perkins wrote:
> > Hello Again,
> >
> > After some help in #packagekit (thanks to james_w), I am currently
> > using the following compile command:
> >
> > gcc $(pkg-config --cflags dbus-glib-1) installer.c
>
> Sure, I would use something similar:
>
> gcc -o installer -Wall installer.c `pkg-config --cflags --libs dbus-glib-1`
>
> > I am currently getting the following compile time errors:
>
> Right, the code I put up on the FAQ was meant to be copied and pasted
> into a program (a snippet), rather than compiled ready to run demo. If
> you want a demo, just surround it with some main braces like this:
>
> #include <dbus/dbus-glib.h>
>
> /**
>  * main:
>  **/
> int
> main (int argc, char *argv[])
> {
>         DBusGConnection *connection;
>        DBusGProxy *proxy;
>        GError *error = NULL;
>        gboolean ret;
>
>        connection = dbus_g_bus_get (DBUS_BUS_SESSION, NULL);
>        proxy = dbus_g_proxy_new_for_name (connection,
>                                           "org.freedesktop.PackageKit",
>                                           "/org/freedesktop/PackageKit",
>                                           "org.freedesktop.PackageKit");
>
>        /* execute sync method */
>        ret = dbus_g_proxy_call (proxy, "InstallPackageName", &error,
>                                 G_TYPE_STRING, "openoffice-clipart",
>                                 G_TYPE_INVALID, G_TYPE_INVALID);
>        if (!ret) {
>                g_warning ("failed: %s", error->message);
>                g_error_free (error);
>        }
>         return 0;
> }
>
> > P.S. On a side note, the python example at
> > http://www.packagekit.org/pk-faq.html#session-methods works just fine.
> > Not sure why I am having so much trouble getting the C example to
> > work.
>
> I'll make the FAQ clearer, and add the compile line. Apologies for the
> confusion.
>
> Richard.
>
>
>
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