[dpdk-dev] [PATCH 2/3] examples/l2fwd: Handle SIGINT and SIGTERM in l2fwd

[Qiu, Michael]

On 12/24/2015 11:07 AM, Zhihong Wang wrote:
> Handle SIGINT and SIGTERM in l2fwd.
>
> Signed-off-by: Zhihong Wang <zhihong.wang at intel.com>
> ---
>  examples/l2fwd/main.c | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>
> diff --git a/examples/l2fwd/main.c b/examples/l2fwd/main.c
> index 720fd5a..0594037 100644
> --- a/examples/l2fwd/main.c
> +++ b/examples/l2fwd/main.c
> @@ -44,6 +44,7 @@
>  #include <ctype.h>
>  #include <errno.h>
>  #include <getopt.h>
> +#include <signal.h>
>  
>  #include <rte_common.h>
>  #include <rte_log.h>
> @@ -534,6 +535,27 @@ check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
>  	}
>  }
>  
> +/* When we receive a INT signal, close all ports */
> +static void
> +sigint_handler(__rte_unused int signum)
> +{
> +	unsigned portid, nb_ports;
> +
> +	printf("Preparing to exit...\n");

Same here and l3fwd, better to show the reason of this exit.

Thanks,
Michael
> +	nb_ports = rte_eth_dev_count();
> +	for (portid = 0; portid < nb_ports; portid++) {
> +		if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
> +			continue;
> +		}
> +		printf("Stopping port %d...", portid);
> +		rte_eth_dev_stop(portid);
> +		rte_eth_dev_close(portid);
> +		printf(" Done\n");
> +	}
> +	printf("Bye...\n");
> +	exit(0);
> +}
> +
>  int
>  main(int argc, char **argv)
>  {
> @@ -546,6 +568,9 @@ main(int argc, char **argv)
>  	unsigned lcore_id, rx_lcore_id;
>  	unsigned nb_ports_in_mask = 0;
>  
> +	signal(SIGINT, sigint_handler);
> +	signal(SIGTERM, sigint_handler);
> +
>  	/* init EAL */
>  	ret = rte_eal_init(argc, argv);
>  	if (ret < 0)