void query_line_handler(unsigned char nfields, char** tokens) {
unsigned short q_id, q_artist, q_bdaystart, q_bdayend;
unsigned short q_relartists[3];
q_id = atoi(tokens[QUERY_FIELD_QID]);
q_artist = atoi(tokens[QUERY_FIELD_A1]);
q_relartists[0] = atoi(tokens[QUERY_FIELD_A2]);
q_relartists[1] = atoi(tokens[QUERY_FIELD_A3]);
q_relartists[2] = atoi(tokens[QUERY_FIELD_A4]);
q_bdaystart = birthday_to_short(tokens[QUERY_FIELD_BS]);
q_bdayend = birthday_to_short(tokens[QUERY_FIELD_BE]);
query(q_id, q_artist, q_relartists, q_bdaystart, q_bdayend);
}
void person_line_handler(unsigned char nfields, char** tokens) {
int ret;
khiter_t k;
person->person_id = atol(tokens[PERSON_FIELD_ID]);
person->birthday = birthday_to_short(tokens[PERSON_FIELD_BIRTHDAY]);
person->location = atoi(tokens[PERSON_FIELD_LOCATION]);
// add mapping person id -> offset to hash table
k = kh_put(pht, person_offsets, person->person_id, &ret);
kh_value(person_offsets, k) = person_offset;
// write binary person record to file
fwrite(person, sizeof(Person), 1, person_out);
person_offset++;
}
