BUS1 Still Remains Out Of The Mainline Linux Kernel, But DBus-Broker Continues

[pininety]

Binder is synchronous. An asynchronous message bus is desired.

There are also other differences: http://kroah.com/log/blog/2014/01/15/kdbus-details/

[treba]

Okay. So Fedora 27 has a dbus-broker rpm. IF installed, would dbus-broker live alongside dbus, or somehow replace it? I'm reluctant to find out....

Just tried it out on fedora 28 beta. You still need the normal package to be installed, but if you enable dbus-broker service, it replaces the dbus.service.

https://github.com/bus1/dbus-broker/wiki

So far it works fine for me

[Azrael5]

Sorry if it's stupid, just trying to understand..
We use Binder every day on Android, it's a very powerful feature. Why not simply merge the Android Binder code ?

Ask to the developers!

[carewolf]

Sorry if it's stupid, just trying to understand..
We use Binder every day on Android, it's a very powerful feature. Why not simply merge the Android Binder code ?

Binder is not a generic IPC API, it does its own limited thing with its own limited code. It can not in any way provide anything useful for DBUS. Bus1 on the other hand can, and is more flexible, and can potentially expand on features for Binder.

[oiaohm]

dbus-broker depends on 4.14 or newer kernels. So depends on functionality 12 Nov 2017 and newer. So when kdbus and bus1 both started the functionality to implement dbus-broker was not in the Linux kernel. So kernel side support has come just not as a direct dbus kernel module/feature.

There is always more than 1 way something can be done. Finding the right way sometimes can take quite some time.

[wagaf]

Binder is not a generic IPC API, it does its own limited thing with its own limited code. It can not in any way provide anything useful for DBUS. Bus1 on the other hand can, and is more flexible, and can potentially expand on features for Binder.

Couldn't Binder be used to accelerate communication between a D-BUS client and dbus-broker or the D-BUS daemon ?

[jacob]

Sorry if it's stupid, just trying to understand..
We use Binder every day on Android, it's a very powerful feature. Why not simply merge the Android Binder code ?

Because it has its own range of problems, not least security wise. AFAIK Binder is actually merged already, but no-one uses it outside of Android.

[jacob]

Is any distro ysing BDUS Broker as yet?

[dkasak]

As I said it is going to be another failure.

I can see from your history of posts that you make a lot of grand statements that are tragically incorrect, or some so disconnected as to be "not even wrong". Keep it up ...

[Emmanuel Deloget]

AFAIK it's only suited for small data transmission.

That should not be an issue. memfd is here to transfer large amounts of data, so a simple-to-use, small message bus would have been ok IMHO.