Enum Block 

pub enum Block {
    D13([usize; 2]),
    DO([usize; 2]),
    PO(usize),
    CPM((usize, u8, u16)),
    FAT((u64, u8)),
    D64([usize; 2]),
}

Encapsulates the disk address and addressing mode used by a file system. Disk addresses generally involve some transformation between logical (file system) and physical (disk fields) addresses. Disk images are responsible for serving blocks in response to a file system request, see the ‘img’ docstring for more. The Block implementation includes a simple mapping from blocks to sectors; disk images can use this or not as appropriate.

Variants

D13([usize; 2])

value is [track,sector]

DO([usize; 2])

value is [track,sector]

PO(usize)

value is block number

CPM((usize, u8, u16))

value is (absolute block number, BSH, OFF); see cpm::types

FAT((u64, u8))

value is (first logical sector,num sectors)

D64([usize; 2])

value is [track,sector]

Implementations

impl Block

pub fn get_lsecs(&self, secs_per_track: usize) -> Vec<[usize; 2]>

Get a track-sector list for this block. At this level we can only assume a simple monotonically increasing relationship between blocks and sectors. Any further skewing must be handled by the caller. CP/M and FAT offsets are accounted for. For CP/M be sure to use 128 byte logical sectors when computing secs_per_track.

Trait Implementations

impl Clone for Block

fn clone(&self) -> Block

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Block

impl Display for Block

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Block

impl Hash for Block

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Block

fn eq(&self, other: &Block) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Block