On 11/19/24 08:01, Laura Nao wrote:
In order to run the watchdog selftest in a non-interactive environment,
the loop responsible for pinging the watchdog should be finite.
Introduce a new '-c' option to adjust the number of pings as needed.
Signed-off-by: Laura Nao <laura.nao@xxxxxxxxxxxxx>
---
tools/testing/selftests/watchdog/watchdog-test.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
index bc71cbca0dde..58c25015d5e7 100644
--- a/tools/testing/selftests/watchdog/watchdog-test.c
+++ b/tools/testing/selftests/watchdog/watchdog-test.c
@@ -27,13 +27,14 @@
int fd;
const char v = 'V';
-static const char sopts[] = "bdehp:st:Tn:NLf:i";
+static const char sopts[] = "bdehp:c:st:Tn:NLf:i";
static const struct option lopts[] = {
{"bootstatus", no_argument, NULL, 'b'},
{"disable", no_argument, NULL, 'd'},
{"enable", no_argument, NULL, 'e'},
{"help", no_argument, NULL, 'h'},
{"pingrate", required_argument, NULL, 'p'},
+ {"pingcount", required_argument, NULL, 'c'},
{"status", no_argument, NULL, 's'},
{"timeout", required_argument, NULL, 't'},
{"gettimeout", no_argument, NULL, 'T'},
@@ -90,6 +91,7 @@ static void usage(char *progname)
printf(" -h, --help\t\tPrint the help message\n");
printf(" -p, --pingrate=P\tSet ping rate to P seconds (default %d)\n",
DEFAULT_PING_RATE);
+ printf(" -c, --pingcount=C\tLimit the number of pings to C (default infinite)\n");
printf(" -t, --timeout=T\tSet timeout to T seconds\n");
printf(" -T, --gettimeout\tGet the timeout\n");
printf(" -n, --pretimeout=T\tSet the pretimeout to T seconds\n");
@@ -172,6 +174,7 @@ int main(int argc, char *argv[])
{
int flags;
unsigned int ping_rate = DEFAULT_PING_RATE;
+ unsigned int ping_count = -1;
Assigning -1 to unsigned?
int ret;
int c;
int oneshot = 0;
@@ -248,6 +251,12 @@ int main(int argc, char *argv[])
ping_rate = DEFAULT_PING_RATE;
printf("Watchdog ping rate set to %u seconds.\n", ping_rate);
break;
+ case 'c':
+ ping_count = strtoul(optarg, NULL, 0);
strtoul() returns ULONG_MAX if there are errors.Don't you have
to handle those cases? Also ping_count in unsigned int? Do you
see compile warns?
+ if (!ping_count)
+ oneshot = 1;
Why not just "goto end" at this point?
+ printf("Number of pings set to %u.\n", ping_count);> + break;
case 's':
flags = 0;
oneshot = 1;
@@ -336,9 +345,11 @@ int main(int argc, char *argv[])
signal(SIGINT, term);
- while (1) {
+ while (ping_count != 0) {
keep_alive();
sleep(ping_rate);
+ if (ping_count > 0)
+ ping_count--;
Did you test this with strtoul() failed case when the return
could be ULONG_MAX?
}
end:
/*
thanks,
-- Shuah
