[dpdk-dev] [PATCH] app/testpmd: fix stats period can't quit normally in container

[Jianbo Liu]

On 18 September 2017 at 11:40, Phil Yang <phil.yang at arm.com> wrote:
> While running testpmd in container with stats-period option, it can't
> quit normally after received SIGINT.
>
> Signed-off-by: Phil Yang <phil.yang at arm.com>
> ---
>  app/test-pmd/testpmd.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
> index e097ee0..d94c63b 100644
> --- a/app/test-pmd/testpmd.c
> +++ b/app/test-pmd/testpmd.c
> @@ -183,6 +183,7 @@ uint16_t mbuf_data_size = DEFAULT_MBUF_DATA_SIZE; /**< Mbuf data space size. */
>  uint32_t param_total_num_mbufs = 0;  /**< number of mbufs in all pools - if
>                                        * specified on command-line. */
>  uint16_t stats_period; /**< Period to show statistics (disabled by default) */
> +uint8_t  f_quit; /* Receive LSC INTERRUPTION to stop show statistics periodically */

The comment seems wrong, as it's not related to LSC.

>  /*
>   * Configuration of packet segments used by the "txonly" processing engine.
>   */
> @@ -2285,6 +2286,8 @@ init_port(void)
>  static void
>  force_quit(void)
>  {
> +       f_quit = 1;

I suggest moving this line to the bottom of this function.

> +
>         pmd_test_exit();
>         prompt_exit();
>  }
> @@ -2441,10 +2444,13 @@ main(int argc, char** argv)
>                         uint64_t prev_time = 0, cur_time, diff_time = 0;
>                         uint64_t timer_period;
>
> +                       /* Receive LSC interrupt to stop showing statistics period */
> +                       f_quit = 0;
> +
>                         /* Convert to number of cycles */
>                         timer_period = stats_period * rte_get_timer_hz();
>
> -                       while (1) {
> +                       while (!f_quit) {
>                                 cur_time = rte_get_timer_cycles();
>                                 diff_time += cur_time - prev_time;
>
> --
> 2.7.4
>