Function used_page

src/darkbird/wal/disk_log.rs:401–408

if not exist directory then is first time run, create dir and a page-1 and open it else open latest page exist

(log: &mut LogFile)

// if not exist directory then is first time run, create dir and a page-1 and open it
// else open latest page exist
fn used_page(log: &mut LogFile) -> usize {

    let mut counter = 0;
    let iter = log.iter(..).unwrap();
    iter.for_each(|_| counter += 1);

    return counter
}

fn open_last_page(path: &str, table_name: &str, total_page_size: usize) -> TmpLogStruct {
     let path = format!("{}/{}", path, table_name);