sxstate sx_set_autocommit(sxmanager *m, sxindex *index, sx *x, svv *v)
{
if (sslikely(m->count_rw == 0)) {
sx_init(m, x);
svlogv lv;
lv.id = index->dsn;
lv.next = UINT32_MAX;
sv_init(&lv.v, &sv_vif, v, NULL);
sv_logadd(&x->log, m->r->a, &lv, index->ptr);
sr_seq(m->r->seq, SR_TSNNEXT);
return SXCOMMIT;
}
sx_begin(m, x, SXRW, 0);
int rc = sx_set(x, index, v);
if (ssunlikely(rc == -1)) {
sx_rollback(x);
return SXROLLBACK;
}
sxstate s = sx_prepare(x, NULL, NULL);
if (sslikely(s == SXPREPARE))
sx_commit(x);
else
if (s == SXLOCK)
sx_rollback(x);
return s;
}
sxstate sx_set_autocommit(sxmanager *m, sxindex *index, sx *x, svlog *log, svv *v)
{
if (sslikely(m->count_rw == 0)) {
sx_init(m, x, log);
svlogv lv;
lv.index_id = index->dsn;
lv.next = UINT32_MAX;
lv.v = v;
lv.ptr = NULL;
sv_logadd(x->log, index->r, &lv);
sr_seq(index->r->seq, SR_TSNNEXT);
sx_promote(x, SX_COMMIT);
return SX_COMMIT;
}
sx_begin(m, x, SX_RW, log, 0);
int rc = sx_set(x, index, v);
if (ssunlikely(rc == -1)) {
sx_rollback(x);
return SX_ROLLBACK;
}
sxstate s = sx_prepare(x, NULL, NULL);
switch (s) {
case SX_PREPARE:
s = sx_commit(x);
break;
case SX_LOCK:
s = sx_rollback(x);
break;
case SX_ROLLBACK:
break;
default:
assert(0);
}
return s;
}