fn read_ordered_vec<T>(path: String, elmt_len: usize) -> io::Result<Vec<T>>
where
	T: ser::Readable + cmp::Ord,
{
	let file_path = Path::new(&path);
	let mut ovec = Vec::with_capacity(1000);
	if file_path.exists() {
		let mut file = BufReader::with_capacity(elmt_len * 1000, File::open(path.clone())?);
		loop {
			// need a block to end mutable borrow before consume
			let buf_len = {
				let buf = file.fill_buf()?;
				if buf.len() == 0 {
					break;
				}
				let elmts_res: Result<Vec<T>, ser::Error> = ser::deserialize(&mut &buf[..]);
				match elmts_res {
					Ok(elmts) => for elmt in elmts {
						if let Err(idx) = ovec.binary_search(&elmt) {
							ovec.insert(idx, elmt);
						}
					},
					Err(_) => {
						return Err(io::Error::new(
							io::ErrorKind::InvalidData,
							format!("Corrupted storage, could not read file at {}", path),
						));
					}
				}
				buf.len()
			};
			file.consume(buf_len);
		}
	}
	Ok(ovec)
}
// Read an ordered vector of scalars from a file.
Read an ordered vector of scalars from a file.
Read an ordered vector of scalars from a file .
fn read_ordered_vec<T>(path: String, elmt_len: usize) -> io::Result<Vec<T>>
where
	T: ser::Readable + cmp::Ord,
{
	let file_path = Path::new(&path);
	let mut ovec = Vec::with_capacity(1000);
	if file_path.exists() {
		let mut file = BufReader::with_capacity(elmt_len * 1000, File::open(path.clone())?);
		loop {
			// need a block to end mutable borrow before consume
			let buf_len = {
				let buf = file.fill_buf()?;
				if buf.len() == 0 {
					break;
				}
				let elmts_res: Result<Vec<T>, ser::Error> = ser::deserialize(&mut &buf[..]);
				match elmts_res {
					Ok(elmts) => for elmt in elmts {
						if let Err(idx) = ovec.binary_search(&elmt) {
							ovec.insert(idx, elmt);
						}
					},
					Err(_) => {
						return Err(io::Error::new(
							io::ErrorKind::InvalidData,
							format!("Corrupted storage, could not read file at {}", path),
						));
					}
				}
				buf.len()
			};
			file.consume(buf_len);
		}
	}
	Ok(ovec)
}
fn read_ordered_vec < T > ( path : String , elmt_len : usize ) -> io :: Result < Vec < T > > where T : ser :: Readable + cmp :: Ord , { let file_path = Path :: new ( & path ) ; let mut ovec = Vec :: with_capacity ( 1000 ) ; if file_path . exists ( ) { let mut file = BufReader :: with_capacity ( elmt_len * 1000 , File :: open ( path . clone ( ) ) ? ) ; loop { // need a block to end mutable borrow before consume let buf_len = { let buf = file . fill_buf ( ) ? ; if buf . len ( ) == 0 { break ; } let elmts_res : Result < Vec < T > , ser :: Error > = ser :: deserialize ( & mut & buf [ .. ] ) ; match elmts_res { Ok ( elmts ) => for elmt in elmts { if let Err ( idx ) = ovec . binary_search ( & elmt ) { ovec . insert ( idx , elmt ) ; } } , Err ( _ ) => { return Err ( io :: Error :: new ( io :: ErrorKind :: InvalidData , format ! ( " " path ) , ) ) ; } } buf . len ( ) } ; file . consume ( buf_len ) ; } } Ok ( ovec ) }
Read an ordered vector of scalars from a file.
Read an ordered vector of scalars from a file .
path
String
elmt_len
usize