Re: [Xen-devel] suspending execution within Xen

[Timenkov Yuri <ytimenkov@xxxxx>]

may be worth using wait queues here? (or schedule())

On Wednesday 29 June 2005 15:53, Avi Kivity wrote:
> I am trying to send a stream of events about one domain to another. so I
> set up a ring between the monitoring domain and xen (not the monitored
> domain). however I am having trouble blocking when buffer space runs
> out.
>
> the intuitive
>
>    while (!buffer_space_available())
>        do_block();
>
> does not work; do_block() appears to return to guest context, not to the
> while loop (is this correct?). the other alternative,
>
>     while (!buffer_space_available())
>       if (!test_and_set_bit(EDF_BLOCKED, &ed->ed_flags))
>           domain_sleep(ed);
>
> freezes xen solid.
>
> is there a way to do it? am I missing something obvious?
>
> Avi
>
>
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 -- 
Timenkov Yuri

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