*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*/
/* for O_DIRECT */
int main(int argc, char **argv)
{
- char *file;
- unsigned char buf[BUFFERSIZE];
- int fd, i, rc;
+ char *file;
+ unsigned char buf[BUFFERSIZE];
+ int fd, i, rc;
unsigned int test_time;
- mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH;
- if (argc != 3) {
- printf("Invalid number of arguments.\n");
- printf("Usage %s <file> <test_time_in_seconds>\n", argv[0]);
- return -1;
- }
+ mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH;
- file = argv[1];
- test_time = atoi(argv[2]);
+ if (argc != 3) {
+ printf("Invalid number of arguments.\n");
+ printf("Usage %s <file> <test_time_in_seconds>\n", argv[0]);
+ return -1;
+ }
+
+ file = argv[1];
+ test_time = atoi(argv[2]);
/* Establish a handler for SIGALRM signals. */
signal(SIGALRM, catch_alarm);
- /* Set an alarm to go off in a little while. */
- alarm(test_time);
+ /* Set an alarm to go off in a little while. */
+ alarm(test_time);
- fd = open(file, O_RDWR|O_TRUNC|O_CREAT|O_SYNC|O_LARGEFILE, mode);
- if (fd < 0) {
- fprintf(stderr, "Error: Cannot open file named ");
- perror(file);
- return -1;
- }
+ fd = open(file, O_RDWR | O_TRUNC | O_CREAT | O_SYNC | O_LARGEFILE,
+ mode);
+ if (fd < 0) {
+ fprintf(stderr, "Error: Cannot open file named ");
+ perror(file);
+ return -1;
+ }
- memset(buf, 1, BUFFERSIZE);
+ memset(buf, 1, BUFFERSIZE);
while (keep_going) {
- for (i = 0; i < 1024; i++) {
- rc = write(fd, buf, BUFFERSIZE);
+ for (i = 0; i < 1024; i++) {
+ rc = write(fd, buf, BUFFERSIZE);
if (rc < 0) {
- fprintf(stderr, "Error: Write error ");
- perror(file);
+ fprintf(stderr, "Error: Write error ");
+ perror(file);
exit(-1);
- } else if (rc != BUFFERSIZE) {
- fprintf(stderr, "Error: Ddidn't write all data \n");
+ } else if (rc != BUFFERSIZE) {
+ fprintf(stderr,
+ "Error: Ddidn't write all data\n");
}
- }
+ }
- if (ftruncate(fd, 0) < 0) {
- fprintf(stderr, "Error: Truncate error ");
- perror(file);
+ if (ftruncate(fd, 0) < 0) {
+ fprintf(stderr, "Error: Truncate error ");
+ perror(file);
exit(-1);
- }
- }
+ }
+ }
- if (close(fd) < 0) {
- fprintf(stderr, "Error: Cannot close ");
- perror(file);
- return -1;
- }
+ if (close(fd) < 0) {
+ fprintf(stderr, "Error: Cannot close ");
+ perror(file);
+ return -1;
+ }
- return 0;
+ return 0;
}