Broadcast to specific user?

[Felipe Gasper]

> On Oct 28, 2020, at 10:29 AM, Simon McVittie <smcv at collabora.com> wrote:
> 
> On Tue, 27 Oct 2020 at 14:30:37 -0400, Felipe Gasper wrote:
>> Is it possible with D-Bus to broadcast a signal such that only clients
>> logged in as a specific user or group will receive the message?
> 
> If you want to send non-public information on the system bus, you can't
> use broadcasts. If you want to emulate a more controlled multicast by
> sending individual unicast signals to each recipient, you should
> implement your own subscription mechanism to avoid waking up clients
> that have the right user/group but don't care about this particular
> message, for example:

Thank you for this.

This context doesn’t have a “service” that would manage subscriptions. I think we can actually make unicast work, though, which solves this problem a bit more simply.

-FG