Fix a few bugs in rand_emmc_perf
Fix the code to properly read urandom to init the random number generator.
Fix to properly read the arguments if any options are given.
Fix to enable it to be built against glibc.
Change-Id: I9127a71232e39afa3054fe9f1612def9ae13d9d3
diff --git a/tests/ext4/rand_emmc_perf.c b/tests/ext4/rand_emmc_perf.c
index d55adc9..1f79c75 100644
--- a/tests/ext4/rand_emmc_perf.c
+++ b/tests/ext4/rand_emmc_perf.c
@@ -19,7 +19,8 @@
* out. Without O_SYNC, the close(2) blocks until all the dirty buffers are written
* out, but the numbers tend to be higher.
*/
-
+
+#define _LARGEFILE64_SOURCE
#include <string.h>
#include <stdio.h>
#include <sys/types.h>
@@ -27,6 +28,7 @@
#include <fcntl.h>
#include <sys/time.h>
#include <stdlib.h>
+#include <unistd.h>
#define TST_BLK_SIZE 4096
/* Number of seconds to run the test */
@@ -79,14 +81,14 @@
}
/* Size is given in megabytes, so compute the number of TST_BLK_SIZE blocks. */
- max_blocks = atol(argv[2]) * ((1024*1024) / TST_BLK_SIZE);
+ max_blocks = atol(argv[optind]) * ((1024*1024) / TST_BLK_SIZE);
- if ((fd = open(argv[3], O_RDWR | o_sync)) < 0) {
- fprintf(stderr, "Cannot open block device %s\n", argv[2]);
+ if ((fd = open(argv[optind + 1], O_RDWR | o_sync)) < 0) {
+ fprintf(stderr, "Cannot open block device %s\n", argv[optind + 1]);
exit(1);
}
- fd2 = open("/dev/urandom\n", O_RDONLY);
+ fd2 = open("/dev/urandom", O_RDONLY);
if (fd2 < 0) {
fprintf(stderr, "Cannot open /dev/urandom\n");
}