[thirdparty/kernel/linux.git] / samples / watchdog / watchdog-simple.c

// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>

int main(void)
{
	int fd = open("/dev/watchdog", O_WRONLY);
	int ret = 0;
	if (fd == -1) {
		perror("watchdog");
		exit(EXIT_FAILURE);
	}
	while (1) {
		ret = write(fd, "\0", 1);
		if (ret != 1) {
			ret = -1;
			break;
		}
		sleep(10);
	}
	close(fd);
	return ret;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
2db02c0f	2	#include <stdio.h>
56fb9e53	3	#include <stdlib.h>
2db02c0f	4	#include <unistd.h>
56fb9e53 RD	5	#include <fcntl.h>
56fb9e53 RD	6
06063e26 WC	7	int main(void)
06063e26 WC	8	{
56fb9e53	9	int fd = open("/dev/watchdog", O_WRONLY);
06063e26	10	int ret = 0;
56fb9e53 RD	11	if (fd == -1) {
56fb9e53 RD	12	perror("watchdog");
06063e26	13	exit(EXIT_FAILURE);
56fb9e53 RD	14	}
56fb9e53 RD	15	while (1) {
06063e26 WC	16	ret = write(fd, "\0", 1);
	17	if (ret != 1) {
	18	ret = -1;
	19	break;
	20	}
56fb9e53 RD	21	sleep(10);
56fb9e53 RD	22	}
06063e26 WC	23	close(fd);
06063e26 WC	24	return ret;
56fb9e53	25	}