Struct FileDescription 

pub struct FileDescription { /* private fields */ }

Implementations

impl FileDescription

pub fn new(id: u64, path: impl Into<String>, flags: u32) -> Self

pub fn new_with_lock( id: u64, path: impl Into<String>, flags: u32, lock_target: Option<FileLockTarget>, ) -> Self

pub fn with_ref_count( id: u64, path: impl Into<String>, flags: u32, ref_count: usize, ) -> Self

pub fn with_ref_count_and_lock( id: u64, path: impl Into<String>, flags: u32, ref_count: usize, lock_target: Option<FileLockTarget>, ) -> Self

pub fn id(&self) -> u64

pub fn path(&self) -> String

pub fn proc_display_path(&self) -> String

Linux renders an unlinked open file description through procfs with a (deleted) suffix while the description itself remains usable.

pub fn is_path_backed_by(&self, expected: &str) -> bool

pub fn rename_path_prefix(&self, old_path: &str, new_path: &str)

pub fn detach_path(&self, expected: &str, file: SharedAnonymousFile) -> bool

pub fn rebind_deleted_path(&self, expected: &str, live_path: &str) -> bool

Keep an unlinked open description attached to the same inode through a surviving hard-link name. The former name remains visible through procfs, while descriptor operations use the live alias.

pub fn detach_directory(&self, _expected: &str, stat: VirtualStat) -> bool

pub fn detached_directory_stat(&self) -> Option<VirtualStat>

pub fn anonymous_stat(&self) -> Option<VirtualStat>

pub fn anonymous_pread(&self, offset: u64, length: usize) -> Option<Vec<u8>>

pub fn anonymous_pwrite( &self, offset: u64, data: &[u8], ) -> Option<FdResult<u64>>

pub fn anonymous_truncate(&self, length: u64) -> Option<FdResult<()>>

pub fn detached_chmod(&self, mode: u32) -> bool

pub fn detached_chown( &self, uid: u32, gid: u32, changed_mode: Option<u32>, ) -> bool

pub fn lock_target(&self) -> Option<FileLockTarget>

pub fn cursor(&self) -> u64

pub fn set_cursor(&self, cursor: u64)

pub fn flags(&self) -> u32

pub fn update_flags(&self, mask: u32, flags: u32) -> u32

pub fn ref_count(&self) -> usize

pub fn increment_ref_count(&self) -> usize

pub fn decrement_ref_count(&self) -> usize

Trait Implementations

impl Debug for FileDescription

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

Formats the value using the given formatter.