we start a infinite loop when user gives ./watchdog-test, and when user
ctrl + c's the program, we just exit immeadiately with out closing the
filedescriptor of the watchdog device. a signal handler is used to
do the job of closing the filedescriptor and exiting the program.
Signed-off-by: Devendra Naga <devendra.aaru@xxxxxxxxx>
---
Documentation/watchdog/src/watchdog-test.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/watchdog/src/watchdog-test.c b/Documentation/watchdog/src/watchdog-test.c
index 23084f2..73ff5cc 100644
--- a/Documentation/watchdog/src/watchdog-test.c
+++ b/Documentation/watchdog/src/watchdog-test.c
@@ -7,6 +7,7 @@
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
+#include <signal.h>
#include <sys/ioctl.h>
#include <linux/types.h>
#include <linux/watchdog.h>
@@ -29,6 +30,14 @@ static void keep_alive(void)
* The main program. Run the program with "-d" to disable the card,
* or "-e" to enable the card.
*/
+
+void term(int sig)
+{
+ close(fd);
+ fprintf(stderr, "Stopping watchdog ticks...\n");
+ exit(0);
+}
+
int main(int argc, char *argv[])
{
int flags;
@@ -65,6 +74,8 @@ int main(int argc, char *argv[])
fflush(stderr);
}
+ signal(SIGINT, term);
+
while(1) {
keep_alive();
sleep(1);
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
