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Commit e9c0d44f authored by Shuah Khan's avatar Shuah Khan
Browse files

selftests: media_device_test change it to randomize loop count 



Change it to randomize the loop count instead of hardcoded number of times
ioctl is called.

Signed-off-by: default avatarShuah Khan <shuahkh@osg.samsung.com>
parent bff12468

tools/testing/selftests/media_tests/media_device_test.c

+13 −6
Original line number Diff line number Diff line 
/*

 * media_devkref_test.c - Media Controller Device Kref API Test

 * media_device_test.c - Media Controller Device ioctl loop Test

 *

 * Copyright (c) 2016 Shuah Khan <shuahkh@osg.samsung.com>

 * Copyright (c) 2016 Samsung Electronics Co., Ltd.
@@ -35,13 +35,14 @@ 
#include <fcntl.h>

#include <sys/ioctl.h>

#include <sys/stat.h>

#include <time.h>

#include <linux/media.h>



int main(int argc, char **argv)

{

	int opt;

	char media_device[256];

	int count = 0;

	int count;

	struct media_device_info mdi;

	int ret;

	int fd;
@@ -69,6 +70,10 @@ int main(int argc, char **argv) 
		exit(-1);

	}



	/* Generate random number of interations */

	srand((unsigned int) time(NULL));

	count = rand();



	/* Open Media device and keep it open */

	fd = open(media_device, O_RDWR);

	if (fd == -1) {
@@ -82,14 +87,16 @@ int main(int argc, char **argv) 
	       "other Oops in the dmesg. Enable KaSan kernel\n"

	       "config option for use-after-free error detection.\n\n");



	while (count < 100) {

	printf("Running test for %d iternations\n", count);



	while (count > 0) {

		ret = ioctl(fd, MEDIA_IOC_DEVICE_INFO, &mdi);

		if (ret < 0)

			printf("Media Device Info errno %s\n", strerror(errno));

		else

			printf("Media device model %s driver %s\n",

				mdi.model, mdi.driver);

			printf("Media device model %s driver %s - count %d\n",

				mdi.model, mdi.driver, count);

		sleep(10);

		count++;

		count--;

	}

}