#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
-#include <getopt.h>
-static void usage(char *prog)
+void usage(char *prog)
{
- printf("usage: %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt count\n", prog);
- printf(" %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt ] -seconds\n", prog);
- printf(" %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt start count\n", prog);
- exit(EXIT_FAILURE);
-}
-
-static char *get_file_name(const char *fmt, long n, int has_fmt_spec)
-{
- static char filename[4096];
- int bytes;
-
- bytes = has_fmt_spec ? snprintf(filename, 4095, fmt, n) :
- snprintf(filename, 4095, "%s%ld", fmt, n);
- if (bytes >= 4095) {
- printf("file name too long\n");
- exit(EXIT_FAILURE);
- }
- return filename;
+ printf("usage: %s {-o|-m|-d|-l<tgt>} filenamefmt count\n", prog);
+ printf(" %s {-o|-m|-d|-l<tgt>} filenamefmt -seconds\n", prog);
+ printf(" %s {-o|-m|-d|-l<tgt>} filenamefmt start count\n", prog);
}
int main(int argc, char ** argv)
{
- long i;
- int rc = 0, do_open = 0, do_link = 0, do_mkdir = 0;
- int do_unlink = 0, do_mknod = 0;
- char *filename;
- char *fmt = NULL, *fmt_unlink = NULL, *tgt = NULL;
- long start, last, end = ~0UL >> 1;
- long begin = 0, count = ~0UL >> 1;
- int c, has_fmt_spec = 0, unlink_has_fmt_spec = 0;
+ int i, rc = 0, do_open = 0, do_link = 0, do_mkdir = 0;
+ char format[4096], *fmt, *tgt = NULL;
+ char filename[4096];
+ long start, last, end;
+ long begin = 0, count;
- /* Handle the last argument in form of "-seconds" */
- if (argc > 1 && argv[argc - 1][0] == '-') {
- char *endp;
+ if (argc < 4 || argc > 5) {
+ usage(argv[0]);
+ return 1;
+ }
- argc--;
- end = strtol(argv[argc] + 1, &endp, 0);
- if (end <= 0 || *endp != '\0')
- usage(argv[0]);
- end = end + time(NULL);
+ if (strcmp(argv[1], "-d") == 0) {
+ do_mkdir = 1;
+ } else if (strcmp(argv[1], "-o") == 0) {
+ do_open = 1;
+ } else if (strncmp(argv[1], "-l", 2) == 0 && argv[1][2]) {
+ tgt = argv[1] + 2;
+ do_link = 1;
+ } else if (strcmp(argv[1], "-m") != 0) {
+ usage(argv[0]);
+ return 1;
}
- while ((c = getopt(argc, argv, "omdl:r:")) != -1) {
- switch(c) {
- case 'o':
- do_open++;
- break;
- case 'm':
- do_mknod++;
- break;
- case 'd':
- do_mkdir++;
- break;
- case 'l':
- do_link++;
- tgt = optarg;
- break;
- case 'r':
- do_unlink++;
- fmt_unlink = optarg;
- break;
- case '?':
- printf("Unknown option '%c'\n", optopt);
- usage(argv[0]);
- }
+ if (strlen(argv[2]) > 4080) {
+ printf("name too long\n");
+ return 1;
}
- if (do_open + do_mkdir + do_link + do_mknod != 1 ||
- do_unlink > 1)
- usage(argv[0]);
+ start = last = time(0);
- switch (argc - optind) {
- case 3:
- begin = strtol(argv[argc - 2], NULL, 0);
- case 2:
- count = strtol(argv[argc - 1], NULL, 0);
- if (end != ~0UL >> 1)
- usage(argv[0]);
- case 1:
- fmt = argv[optind];
- break;
- default:
- usage(argv[0]);
+ if (argc == 4) {
+ end = strtol(argv[3], NULL, 0);
+ } else {
+ begin = strtol(argv[3], NULL, 0);
+ end = strtol(argv[4], NULL, 0);
}
- start = last = time(NULL);
-
- has_fmt_spec = strchr(fmt, '%') != NULL;
- if (do_unlink)
- unlink_has_fmt_spec = strchr(fmt_unlink, '%') != NULL;
+ if (end > 0) {
+ count = end;
+ end = -1UL >> 1;
+ } else {
+ end = start - end;
+ count = -1UL >> 1;
+ }
- for (i = 0; i < count && time(NULL) < end; i++, begin++) {
- filename = get_file_name(fmt, begin, has_fmt_spec);
+ if (strchr(argv[2], '%'))
+ fmt = argv[2];
+ else {
+ sprintf(format, "%s%%d", argv[2]);
+ fmt = format;
+ }
+ for (i = 0; i < count && time(0) < end; i++, begin++) {
+ sprintf(filename, fmt, begin);
if (do_open) {
int fd = open(filename, O_CREAT|O_RDWR, 0644);
if (fd < 0) {
break;
}
}
- if (do_unlink) {
- filename = get_file_name(fmt_unlink, begin,
- unlink_has_fmt_spec);
- rc = do_mkdir ? rmdir(filename) : unlink(filename);
- if (rc) {
- printf("unlink(%s) error: %s\n",
- filename, strerror(errno));
- rc = errno;
- break;
- }
- }
-
if ((i % 10000) == 0) {
- printf(" - created %ld (time %ld total %ld last %ld)\n",
+ printf(" - created %d (time %ld total %ld last %ld)\n",
i, time(0), time(0) - start, time(0) - last);
- last = time(NULL);
+ last = time(0);
}
}
- printf("total: %ld creates%s in %ld seconds: %f creates/second\n", i,
- do_unlink ? "/deletions" : "",
- time(NULL) - start, ((float)i / (time(0) - start)));
+ printf("total: %d creates in %ld seconds: %f creates/second\n", i,
+ time(0) - start, ((float)i / (time(0) - start)));
return rc;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff