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authorShuah Khan <shuahkh@osg.samsung.com>2016-06-17 18:05:05 -0600
committerShuah Khan <shuahkh@osg.samsung.com>2016-06-27 13:21:26 -0600
commite9c0d44f5328ba844f7e037791b9cc72ee3ef964 (patch)
treee095d64468cdc4a3babe606f69abe8a3a2a4b940 /tools
parentbff124682eaa784596672bdd344b9b0f646035a2 (diff)
downloadop-kernel-dev-e9c0d44f5328ba844f7e037791b9cc72ee3ef964.zip
op-kernel-dev-e9c0d44f5328ba844f7e037791b9cc72ee3ef964.tar.gz
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: Shuah Khan <shuahkh@osg.samsung.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/media_tests/media_device_test.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/tools/testing/selftests/media_tests/media_device_test.c b/tools/testing/selftests/media_tests/media_device_test.c
index cbf53a0..5d49943 100644
--- a/tools/testing/selftests/media_tests/media_device_test.c
+++ b/tools/testing/selftests/media_tests/media_device_test.c
@@ -1,5 +1,5 @@
/*
- * 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--;
}
}
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