[libvirt] [PATCH 05/10] Check return status for setting TCP_NODELAY option and generate a VIR_DEBUG message on failure. Allow connection to continue.

[Daniel P. Berrange]

On Thu, Jan 03, 2013 at 02:16:17PM -0500, John Ferlan wrote:
> ---
>  src/xen/xend_internal.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/src/xen/xend_internal.c b/src/xen/xend_internal.c
> index 84a25e8..1f779b0 100644
> --- a/src/xen/xend_internal.c
> +++ b/src/xen/xend_internal.c
> @@ -91,8 +91,10 @@ do_connect(virConnectPtr xend)
>      /*
>       * try to desactivate slow-start
>       */
> -    setsockopt(s, IPPROTO_TCP, TCP_NODELAY, (void *)&no_slow_start,
> -               sizeof(no_slow_start));
> +    if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY, (void *)&no_slow_start,
> +                   sizeof(no_slow_start)) < 0) {
> +        VIR_DEBUG("Unable to disable nagle algorithm");
> +    }

Hmm, I'd just make this  ignore_value() i think - it is something we
expect to fail with UNIX sockets

Daniel
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