Re: [Qemu-devel] [PATCH 1/3] iothread: provide helpers for internal use

[Peter Xu <peterx@redhat.com>]

On Mon, Oct 02, 2017 at 07:18:04PM +0200, Markus Armbruster wrote:
> Stefan Hajnoczi <stefanha@redhat.com> writes:
> 
> > On Fri, Sep 22, 2017 at 04:56:10PM +0800, Peter Xu wrote:
> >> IOThread is a general framework that contains IO loop environment and a
> >> real thread behind.  It's also good to be used internally inside qemu.
> >> Provide some helpers for it to create iothreads to be used internally.
> >> 
> >> Signed-off-by: Peter Xu <peterx@redhat.com>
> >> ---
> >>  include/sysemu/iothread.h |  8 ++++++++
> >>  iothread.c                | 21 +++++++++++++++++++++
> >>  2 files changed, 29 insertions(+)
> >> 
> >> diff --git a/include/sysemu/iothread.h b/include/sysemu/iothread.h
> >> index d2985b3..b07663f 100644
> >> --- a/include/sysemu/iothread.h
> >> +++ b/include/sysemu/iothread.h
> >> @@ -46,4 +46,12 @@ AioContext *iothread_get_aio_context(IOThread *iothread);
> >>  void iothread_stop_all(void);
> >>  GMainContext *iothread_get_g_main_context(IOThread *iothread);
> >>  
> >> +/*
> >> + * Helpers used to allocate iothreads for internal use.  These
> >> + * iothreads will not be seen by monitor clients when query using
> >> + * "query-iothreads".
> >> + */
> >> +IOThread *iothread_create(const char *id, Error **errp);
> >> +void iothread_destroy(IOThread *iothread);
> >> +
> >>  #endif /* IOTHREAD_H */
> >> diff --git a/iothread.c b/iothread.c
> >> index 44c8944..74e400c 100644
> >> --- a/iothread.c
> >> +++ b/iothread.c
> >> @@ -354,3 +354,24 @@ GMainContext *iothread_get_g_main_context(IOThread *iothread)
> >>  
> >>      return iothread->worker_context;
> >>  }
> >> +
> >> +static Object *iothread_get_internal_parent(void)
> >> +{
> >> +    return container_get(object_get_root(), "/internal-iothreads");
> >> +}
> >
> > Markus, please advise on the following QMP API design issue.
> 
> Sorry for the slow response.  Is my advice still needed, or are you
> good?

I see that the patches are in master now (latest version, not this
one), and the consensus should be that internally used iothreads won't
affect results of query-iothreads.  So I think we are good now.  Thanks,

-- 
Peter Xu