Hi Jerry,
Thanks for the patch. A few comments below:
On 09/21/2018 04:55 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 | 30 +++++++++++++++++++++++-
> 1 file changed, 29 insertions(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
> index 6e29087..4861e2c 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}
> };
>
> @@ -71,6 +74,9 @@ 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 Set the pretimeout to T seconds\n");
> + printf(" -N, --getpretimeout Get the pretimeout\n");
How are the new arguments used?
> printf("\n");
> printf("Parameters are parsed left-to-right in real-time.\n");
> printf("Example: %s -d -t 10 -p 5 -e\n", progname);
Please add an example usage for each of these new arguments.
> @@ -135,6 +141,28 @@ int main(int argc, char *argv[])
> else
> printf("WDIOC_SETTIMEOUT errno '%s'\n", strerror(errno));
> break;
> + case 'T':
> + ret = ioctl(fd, WDIOC_GETTIMEOUT, &flags);
> + if (!ret)
> + printf("Watchdog timeout set to %u seconds.\n", flags);
It would good to make this message different from the WDIOC_SETTIMEOUT message.
Please update it to reflect that this is the result of a WDIOC_GETTIMEOUT.
What would user intend to do with this GETTIMEOUT? Shouldn't this be the case that it
prints the current value and exits instead of the same logic as SETTIMEOUT option?
> + else
> + printf("WDIOC_GETTIMEOUT errno '%s'\n", strerror(errno))
Shouldn't this error be an exit condition?
> + 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':
> + ret = ioctl(fd, WDIOC_GETPRETIMEOUT, &flags);
> + if (!ret)
> + printf("Watchdog pretimeout set to %u seconds.\n", flags);
It would good to make this message different from the WDIOC_GETPRETIMEOUT message.
Please update it to reflect that this is the result of a WDIOC_GETPRETIMEOUT
What would user intend to do with this GETTIMEOUT? Shouldn't this be the case that it
prints the current value and exits instead of the same logic as WDIOC_SETPRETIMEOUT?
> + else
> + printf("WDIOC_GETPRETIMEOUT errno '%s'\n", strerror(errno));
Shouldn't this error be an exit condition?
> + break;
> default:
> usage(argv[0]);
> goto end;
>
Also can you run this test as normal user?
thanks,
-- Shuah
