read_line
uint32_t read_line = 0;
&read_line);
return read_line;
while (read_line(key_val, sizeof(key_val), fp)) {
while (read_line(data_file, data_line, sizeof(data_line))) {
while (read_line(pfile, line, sizeof(line))) {
while (read_line(gfile, line, sizeof(line))) {
while (read_line(pfile, line, sizeof(line))) {
while (read_line(mfile, line, sizeof(line))) {