split_and_insert
void split_and_insert(std::unordered_set<int> *set, const std::string &input);
void split_and_insert(std::unordered_set<std::string> *set, const std::string &input);
split_and_insert(&pids, ids);
split_and_insert(&tids, ids);
split_and_insert(&threads, ids);
split_and_insert(&programs, ids);
split_and_insert(&events, ids);