On Thu, Jun 27, 2013 at 5:22 PM, Tomas Hozza <thozza@xxxxxxxxxx> wrote:
> Check return value of poll call and if it fails print error to the
> system log. If errno is EINVAL then exit with non-zero value otherwise
> continue the while loop and call poll again.
>
> Signed-off-by: Tomas Hozza <thozza@xxxxxxxxxx>
> ---
> tools/hv/hv_vss_daemon.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/tools/hv/hv_vss_daemon.c b/tools/hv/hv_vss_daemon.c
> index 6c4d2f1..826d499 100644
> --- a/tools/hv/hv_vss_daemon.c
> +++ b/tools/hv/hv_vss_daemon.c
> @@ -204,7 +204,16 @@ int main(void)
> socklen_t addr_l = sizeof(addr);
> pfd.events = POLLIN;
> pfd.revents = 0;
> - poll(&pfd, 1, -1);
> +
> + if (poll(&pfd, 1, -1) < 0) {
>From the description it seems that this is a typo. It should be 'while'?
> + syslog(LOG_ERR, "poll failed; error:%d %s", errno, strerror(errno));
> + if (errno == EINVAL) {
> + close(fd);
> + exit(EXIT_FAILURE);
> + }
> + else
> + continue;
> + }
>
> len = recvfrom(fd, vss_recv_buffer, sizeof(vss_recv_buffer), 0,
> addr_p, &addr_l);
> --
> 1.8.1.4
>
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--
~Santosh
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