int get(int key) {
// this will do
// shared_lock<shared_mutex> lk(s_mtx);
rw_lock.ReadLock();
int hash_key = hash(key);
int ret = -1;
for(auto it = m_map[hash_key].begin(); it != m_map[hash_key].end(); it++) {
if((*it).first == key) {
ret = (*it).second;
break;
}
}
rw_lock.ReadUnLock();
return ret;
}
