Re: Some questions about libports and notification of ports

[Da Zheng]

Thomas Bushnell BSG wrote:
> > The device file is created by a translator to help other user programs 
> > to open the device.
> > For example, we can create a device file /dev/eth0 with the translator. 
> > When the user program calls file_name_lookup() on the file and 
> > device_open() as I do in the code, I actually open the device of eth0.
> > So device_file here can be /dev/eth0, /dev/eth1, etc.
> >     
>
> You are opening that file as if you expect it to be there, and to return
> you a port you can do device_open on.  That seems very confused to me.
> You call device_open on master device files.  
>   
The purpose of the translator is to help other programs get the port to 
the device, so I suggested if it was OK that file_name_lookup() returns 
the port to the device directly.
antrik said it was quite confusing for him because file_name_lookup() 
should return a Hurd port, not a Mach port.
Here are his suggestions. You can see them in the message:
http://lists.gnu.org/archive/html/bug-hurd/2008-08/msg00005.html
Few people gives suggestions, So antrik said I could use any design he 
suggested.

So what is your suggestion?

Zheng Da