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Re: Automounters - more info wanted (was Re: Re: plextor px-708uf: cannot get disk type)

> > >What I meant was those autothingies should keep their hands off
> > > a disk while a burn process is happening. Dunno whether it's
> > > possible to detect this, but isn't that the way it should be?
> >
> > The burner software can open exclusive - see man open.

Yes, even better if the burning software can get access to the device in
such a way that accesses from other processes result in "in use - go

> You mean O_EXCL? That doesn't seem to make sense?

       O_EXCL When  used with O_CREAT, if the file already exists
              it is an error and the open will fail.

My man page doesn't mention anything about E_EXCL when used without
O_CREAT, but if the behaviour is return success only when the device
isn't in use (r or w elsewhere) and to prevent subsequent processes
from opening even read-only, then that looks like the solution. Does
the fact that growisofs/cdrecord don't seem to obtain exclusive access
to the device mean doing exactly that isn't actually possible, or
prevented otherwise?


Volker Kuhlmann			is possibly list0570 with the domain in header
http://volker.dnsalias.net/		Please do not CC list postings to me.

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