Enum NoCowGuardErr 

pub enum NoCowGuardErr {
    AlreadyLocked,
    Borrowed,
    Poisoned,
}

An errors for exclusive lock i.e non-cow operation.

Variants

AlreadyLocked

The instance is already exclusivly locked, so either try again later or borrow. This can be used to prevent multiple update on failures.

Borrowed

The instance is borrowed (CoW read) by the calling thread already, so deadlock prevented.

Poisoned

The instance is poisoned.

Trait Implementations

impl Clone for NoCowGuardErr

fn clone(&self) -> NoCowGuardErr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NoCowGuardErr

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

Formats the value using the given formatter.

impl Display for NoCowGuardErr

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

Formats the value using the given formatter.

impl PartialEq for NoCowGuardErr

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for NoCowGuardErr

impl Eq for NoCowGuardErr

impl StructuralPartialEq for NoCowGuardErr