Struct DirectoryBlockEntry 

#[repr(C)]
pub struct DirectoryBlockEntry {
    pub inode: Option<InodeNumber>,
    pub name_len: u8,
    pub name: [u8; 251],
}

Represent a single directory entry within a directory block.

Each entry stores metadata for necessary to locate a file or subdirectory.

Fields

inode: Option<InodeNumber>

The inode associated with this directory entry.

• Some(inode): a valid file or directory.
• None: an unused or deleted entry.

name_len: u8

The length of the file or directory name stored in name. This indicates how many bytes in the name array are valid.

name: [u8; 251]

The name of the file or directory. Only the first name_len bytes are meaningful.

Implementations

impl DirectoryBlockEntry

pub fn from_ino_name(ino: InodeNumber, name: &str) -> Option<Self>

Constructs a new directory entry from an inode number and name.

Returns None if the name is too long to fit in the directory entry.

Arguments

• ino: The inode number associated with the entry.
• name: The name of the file or directory.

Returns

• Some(Self): A valid directory entry.
• None: If the name is too long to fit.

pub fn name(&self) -> Option<&str>

Returns the name of the directory entry as a string slice.

Returns

• Some(&str): If the name is valid UTF-8.
• None: If the name contains invalid UTF-8 bytes.

Trait Implementations

impl Clone for DirectoryBlockEntry

fn clone(&self) -> DirectoryBlockEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DirectoryBlockEntry

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

Formats the value using the given formatter.

impl Default for DirectoryBlockEntry

fn default() -> Self

Returns the “default value” for a type.

impl Copy for DirectoryBlockEntry