Re: [Bluez-devel] [PATCH] dbus.c: cleanup/fix method parameter getting

[Marcel Holtmann <marcel@holtmann.org>]

Hi Johan,

> > > Ok, I see your point. I didn't quite understand the use-case you were
> > > thinking of earlier. One extra requirement that the dbus-id settings has
> > > is that we will have to monitor the lifetime of a D-BUS client (by
> > > listening NameOwnerChanged D-BUS signals) and remove the corresponding
> > > entry from the settings table when an id gets removed from the bus.
> > 
> > this might be too much work for the current interface. Or do you think
> > it can be easily implemented?
> 
> It will require a moderate amount of coding, so it wont be easy at least
> in that respect. However, I think that implementing D-BUS client
> lifetime monitoring is a feature that we will inevitably have to
> implement at some point anyway. It may e.g. be needed for noticing if a
> program which requested an RFCOMM connection suddenly died (in which
> case hcid/bluetoothd should disconnect that connection). Also, I've
> already done it once (for dbus 0.23.4 though) for the D-BUS API we have
> in maemo, so there shouldn't come any "supprises" when implementing it.

then lets do it. Or to be more precise, you do it ;)

> > > Ok, I'll begin by doing a patch for Inquiry and PeriodicInquiry
> > > (probably during tomorrow).
> > 
> > This would be great. For the next release I like to have the inquiry (or
> > better name it device discovery) working. This will include some nice
> > support for the extended inquiry. So you will get the remote name for
> > free with a discovery. So is it possible to have different signatures
> > for signals too?
> 
> Sure, and if the new signature differs only by having extra parameters
> at the end it should even be backwards compatible (i.e.
> dbus_message_get_args call for the old signature works also for the new
> signature).

Then I think that I will include the device name in the inquiry response
signal and leave further extensions to a different signature.

Regards

Marcel




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