Re: [Qemu-devel] [PATCH 2/2] main: switch qemu_set_fd_handler to g_io_add_watch

[Paolo Bonzini]

On 11/25/2011 05:56 PM, Fabien Chouteau wrote:
> > > >>  Is it possible to use both? Keep the select scheme for iohandlers and
> > > >>  slirp, but use g_main_context_iteration() for Glib stuff.
> > >
> > >  Perhaps with two threads, but I think it's more complicated than
> > >  merging the handle/fd sets and doing a single poll.
> Why two threads?

Because you have two disjoint sets of file descriptors (iohandler+slirp 
and glib), both of which have to be waited on for a possibly infinite 
file.  You cannot do that at the same time without two threads (unless 
you alternatively poll one and the other).

Paolo