[libvirt] [PATCH 3/8] Tweak daemon event debug to include errno

Eric Blake eblake at redhat.com
Wed Dec 1 19:22:53 UTC 2010


On 12/01/2010 10:26 AM, Daniel P. Berrange wrote:
> * daemon/event.c: Include errno in debug info upon poll() failure
> ---
>  daemon/event.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/daemon/event.c b/daemon/event.c
> index a983b35..0920748 100644
> --- a/daemon/event.c
> +++ b/daemon/event.c
> @@ -576,13 +576,14 @@ int virEventRunOnce(void) {
>   retry:
>      EVENT_DEBUG("Poll on %d handles %p timeout %d", nfds, fds, timeout);
>      ret = poll(fds, nfds, timeout);
> -    EVENT_DEBUG("Poll got %d event", ret);
>      if (ret < 0) {
> +        EVENT_DEBUG("Poll got error event %d", errno);
>          if (errno == EINTR) {
>              goto retry;
>          }
>          goto error_unlocked;
>      }
> +    EVENT_DEBUG("Poll got %d event(s)", ret);

ACK; independently useful, if you want to push now.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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