Re: [Jack-Devel] Multi-user desktop integration

2014-11-02 18:06 GMT+01:00 Paul Davis <[hidden]>:

> The first solution that comes to mind is to make this system-wide server
>> run in promiscuous mode, so I've exported JACK_PROMISCUOUS_SERVER globally
>> (in /etc/environment). Problem: for this to work, the server and every
>> single Jack application (including the pulse-jack bridge) must be running
>> with a 0000 umask, which sounds a bit scary to me.
>>
>
> should not be the case. should be fixed if it is the case.
>

Yes it is. Without touching the umask, both the server side sockets (for
requests) and the client side sockets (for notifications) are created with
the default umask which usually is 0022 so they will not be writable by the
other side if its not the same user. Same is true for semaphores and shm
segments. Only the shm registry had its permissions explicitly set to 0666.

multi-user JACK is not something i'm particularly interested in but perhaps
> other people will feel differently.
>
> i'm also fairly sure that the ALSA loopback device is a better method for
> Pulse<=>JACK interaction than the pulse JACK sink/sources.
>

You're probably right about ALSA loopback. I'll try it out. But this
doesn't change the picture a lot. All the multi-user Jack related issues
would still be present.

Thanks.

1414949477.23971_0.ltw:2, <CAM-ziR4X6O93gT2uP7V47K=cCcanh33g2BJFxbgRVsPMwT_e0g at mail dot gmail dot com>