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