- LOCK(&lock);
- for (; index < 1000000; index++) {
- snprintf(template+l-6, 6, "%06d", index);
- if (access(template, F_OK) != 0) {
- UNLOCK(&lock);
- return template;
- }
+ while (retries--) {
+ clock_gettime(CLOCK_REALTIME, &ts);
+ r = ts.tv_nsec + (uintptr_t)&ts / 16 + (uintptr_t)template;
+ for (i=1; i<=6; i++, r>>=4)
+ template[l-i] = 'A'+(r&15);
+ if (access(template, F_OK) < 0) return template;