On Tue, 26 Jun 2012 13:45:52 +0200
Kevin Wolf <kwolf@xxxxxxxxxx> wrote:
> Am 26.06.2012 11:10, schrieb Daniel P. Berrange:
> > I was thinking about some of the sources complexity when using
> > FD passing from libvirt and wanted to raise one idea for discussion
> > before we continue.
> >
> > With this proposed series, we have usage akin to:
> >
> > 1. pass_fd FDSET={M} -> returns a string "/dev/fd/N" showing QEMU's
> > view of the FD
> > 2. drive_add file=/dev/fd/N
> > 3. if failure:
> > close_fd "/dev/fd/N"
>
> In fact, there are more steps:
>
> 4. use it successfully
> 5. close_fd "/dev/fd/N"
>
> I think it would well be possible that qemu just closes the fd when it's
> not used internally any more.
pass-fd could have a flag indicating qemu to do that.
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