> -----Original Message-----
> From: Tomas Hozza [mailto:[email protected]]
> Sent: Wednesday, May 22, 2013 8:55 AM
> To: [email protected]
> Cc: KY Srinivasan; [email protected]; Haiyang Zhang;
> [email protected]; Tomas Hozza
> Subject: [PATCH v3 2/4] tools: hv: Check return value of poll call
>
> 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 <[email protected]>
Acked-by: K. Y. Srinivasan <[email protected]>
> ---
> tools/hv/hv_kvp_daemon.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
> index ae9aa1c..81cbb6e 100644
> --- a/tools/hv/hv_kvp_daemon.c
> +++ b/tools/hv/hv_kvp_daemon.c
> @@ -1490,7 +1490,16 @@ 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) {
> + syslog(LOG_ERR, "poll failed; error: %d %s", errno,
> strerror(errno));
> + if (errno == EINVAL) {
> + close(fd);
> + exit(EXIT_FAILURE);
> + }
> + else
> + continue;
> + }
>
> len = recvfrom(fd, kvp_recv_buffer, sizeof(kvp_recv_buffer), 0,
> addr_p, &addr_l);
> --
> 1.8.1.4
>
>
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