Net::DBus and qdbus disagreement

[Daniel P. Berrange]

On Sun, Dec 18, 2011 at 02:57:34PM -0600, Robert Wenner wrote:
> Hi all,
> 
> I have a problem opening KMail's composer window from the Net::DBus Perl 
> module.
> 
> When I run the example that comes with Net::DBus, it only shows me one 
> openComposer method which takes 6 arguments:
> 
> robert at habanero:~/hrsn/Net-DBus-1.0.0/examples$ perl dump-object.pl 
> org.kde.kmail /KMail | grep -A 7 openComposer
>     Method: openComposer
>       > string (to)
>       > string (cc)
>       > string (bcc)
>       > string (subject)
>       > string (body)
>       > bool (hidden)
>       < objectpath
> 
> However, qdbus shows 3 methods, and I want to call the one that takes 9 
> arguments.
> 
> robert at habanero:~/hrsn/Net-DBus-1.0.0/examples$ qdbus org.kde.kmail /KMail 
> | grep openComposer 
> method QDBusObjectPath org.kde.kmail.kmail.openComposer(QString to, ...snip...)
> method int org.kde.kmail.kmail.openComposer(QString to, ...snip...)
> method int org.kde.kmail.kmail.openComposer(QString to, ...snip..)

Ok, so this is showing that there are 3 methods exported in the same
interface, all with the same name.  I did not realize that this is
allowed by DBus. The Net::DBus code is assuming that method names
are unique within the scope of a single interface, so it is only
able to show you a single method. 


> robert at habanero:~/hrsn/Net-DBus-1.0.0/examples$ 
> 
> Consequently, if I try to call the 9 argument version from Perl, it fails:
> robert at habanero:~$ tm-mail.pl
> expected 6 params, but got 9 at 
> /usr/local/lib/perl/5.10.1/Net/DBus/Binding/Introspector.pm line 1115, 
> <DATA> line 303.
> 
> What am I missing here?
> What do I need to do to make Net::DBus see and call the other methods?

I will need to update the Net::DBus code to take account of the fact that
you can have multiple methods with the same name within a single
interface.

Regards,
Daniel
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