Re: [V2 PATCH] selftests: watchdog: Add gettimeout and get|set pretimeout

From: Shuah Khan
Date: Tue Sep 25 2018 - 16:51:25 EST


Hi Jerry,

On 09/24/2018 01:36 PM, Jerry Hoemann wrote:
> Add command line arguments to call ioctl WDIOC_GETTIMEOUT,
> WDIOC_GETPRETIMEOUT and WDIOC_SETPRETIMEOUT.
>
> Signed-off-by: Jerry Hoemann <jerry.hoemann@xxxxxxx>
> ---
> tools/testing/selftests/watchdog/watchdog-test.c | 33 +++++++++++++++++++++++-
> 1 file changed, 32 insertions(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
> index 6e29087..3e8e393 100644
> --- a/tools/testing/selftests/watchdog/watchdog-test.c
> +++ b/tools/testing/selftests/watchdog/watchdog-test.c
> @@ -19,7 +19,7 @@
>
> int fd;
> const char v = 'V';
> -static const char sopts[] = "bdehp:t:";
> +static const char sopts[] = "bdehp:t:Tn:N";
> static const struct option lopts[] = {
> {"bootstatus", no_argument, NULL, 'b'},
> {"disable", no_argument, NULL, 'd'},
> @@ -27,6 +27,9 @@
> {"help", no_argument, NULL, 'h'},
> {"pingrate", required_argument, NULL, 'p'},
> {"timeout", required_argument, NULL, 't'},
> + {"gettimeout", no_argument, NULL, 'T'},
> + {"pretimeout", required_argument, NULL, 'n'},
> + {"getpretimeout", no_argument, NULL, 'N'},
> {NULL, no_argument, NULL, 0x0}
> };
>
> @@ -71,9 +74,13 @@ static void usage(char *progname)
> printf(" -h, --help Print the help message\n");
> printf(" -p, --pingrate=P Set ping rate to P seconds (default %d)\n", DEFAULT_PING_RATE);
> printf(" -t, --timeout=T Set timeout to T seconds\n");
> + printf(" -T, --gettimeout Get the timeout\n");
> + printf(" -n, --pretimeout=T Set the pretimeout to T seconds\n");
> + printf(" -N, --getpretimeout Get the pretimeout\n");
> printf("\n");
> printf("Parameters are parsed left-to-right in real-time.\n");
> printf("Example: %s -d -t 10 -p 5 -e\n", progname);
> + printf("Example: %s -t 12 -T -n 7 -N\n", progname);

Would this work the way you want it though, since -N now is oneshot?
Should this be just "printf("Example: %s -t 12 -T -n 7\n", progname); ??

The rest looks good to me.

> }
>
> int main(int argc, char *argv[])
> @@ -135,6 +142,30 @@ int main(int argc, char *argv[])
> else
> printf("WDIOC_SETTIMEOUT errno '%s'\n", strerror(errno));
> break;
> + case 'T':
> + oneshot = 1;
> + ret = ioctl(fd, WDIOC_GETTIMEOUT, &flags);
> + if (!ret)
> + printf("WDIOC_GETTIMEOUT returns %u seconds.\n", flags);
> + else
> + printf("WDIOC_GETTIMEOUT errno '%s'\n", strerror(errno));
> + break;
> + case 'n':
> + flags = strtoul(optarg, NULL, 0);
> + ret = ioctl(fd, WDIOC_SETPRETIMEOUT, &flags);
> + if (!ret)
> + printf("Watchdog pretimeout set to %u seconds.\n", flags);
> + else
> + printf("WDIOC_SETPRETIMEOUT errno '%s'\n", strerror(errno));
> + break;
> + case 'N':
> + oneshot = 1;
> + ret = ioctl(fd, WDIOC_GETPRETIMEOUT, &flags);
> + if (!ret)
> + printf("WDIOC_GETPRETIMEOUT returns %u seconds.\n", flags);
> + else
> + printf("WDIOC_GETPRETIMEOUT errno '%s'\n", strerror(errno));
> + break;
> default:
> usage(argv[0]);
> goto end;
>

thanks,
-- Shuah