return 1;
}
-int pd_uuid_make_v1mc(struct pd_uuid_state *ps, pd_uuid_t *uuid) {
- struct pd_uuid_state s;
+int pd_uuid_make_v1mc(struct pd_uuid_state *s, pd_uuid_t *uuid) {
+ struct pd_uuid_state ls;
uint64_t now;
uint64_t node;
+ int err;
+
+ if (!s) {
+ s = &ls;
+ pd_uuid_init_state(s);
+ }
+
+ if (s->get_lock) {
+ if ((err = s->get_lock(s->lock_data)) != 0) {
+ /* TODO set uuid to nil ? */
+ /* be cute and have an "error" uuid? */
+ return 0;
+ }
+ }
+
+ if (s->read_state) {
+ if ((err = s->read_state(s)) != 0) {
+ return 0;
+ }
+ }
- obtain_global_lock(0);
- read_state(&s);
now = current_time();
- node = random_mc_mac(&s);
- if (!s.available) {
- s.clock_sequence = random_clock_sequence(&s);
+ node = random_mc_mac(s);
+
+ if (!s->available || s->node != node) {
+ s->clock_sequence = random_clock_sequence(s);
}
+ s->node = node;
- if (s.available && s.timestamp > now) {
- s.clock_sequence++;
+ if (s->available && s->timestamp > now) {
+ s->clock_sequence++;
} else {
- s.timestamp = now;
+ s->timestamp = now;
}
- save_state(&s);
- release_global_lock(0);
- s.node = node;
+ if (s->save_state) {
+ if ((err = s->save_state(s)) != 0) {
+ return 0;
+ }
+ }
+
+ if (s->release_lock) {
+ if ((err = s->release_lock(s->lock_data)) != 0) {
+ /* TODO set uuid to nil ? */
+ /* be cute and have an "error" uuid? */
+ return 0;
+ }
+ }
- format_uuid(uuid, &s, 1);
+ format_uuid(uuid, s, 1);
return 1;
}