Struct UucpLock 

pub struct UucpLock { /* private fields */ }

RAII handle for a UUCP lock file. Drops it when this value goes out of scope.

Implementations

impl UucpLock

pub fn acquire(device_path: &str) -> Result<Self>

Acquires a lock for device_path, trying /var/lock first and falling back to /tmp on permission / not-found errors. On non-Unix targets this is a no-op.

Errors

• Error::AlreadyLocked if a live process already owns the device.
• Error::Io for filesystem failures the fallback cannot recover from.

pub fn acquire_in(device_path: &str, lock_dir: &Path) -> Result<Self>

Acquires a lock for device_path in the explicit lock_dir. Tests use this entry to point the lock at a temporary directory instead of the system-wide path. On non-Unix targets this is a no-op.

Errors

Same as UucpLock::acquire but without the /tmp fallback.

pub fn lock_file_path(&self) -> &Path

Returns the lock file path this guard owns.

Trait Implementations

impl Debug for UucpLock

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

Formats the value using the given formatter.

impl Drop for UucpLock

fn drop(&mut self)

Executes the destructor for this type.