Struct WriteGuard 

pub struct WriteGuard<'a, V> { /* private fields */ }

Write guard with value write lock, holding structure read lock and value write lock 带值写锁的写守护者，持有结构读锁和值的写锁

This allows other threads to still read/write other values, but cannot access this value 这样其他线程仍可读写其他值，但不能访问此值

Trait Implementations

impl<'a, V> AsMut<V> for WriteGuard<'a, V>

fn as_mut(&mut self) -> &mut V

Converts this type into a mutable reference of the (usually inferred) input type.

impl<'a, V> AsRef<V> for WriteGuard<'a, V>

fn as_ref(&self) -> &V

Converts this type into a shared reference of the (usually inferred) input type.

impl<'a, V> Debug for WriteGuard<'a, V>

where V: Debug,

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

Formats the value using the given formatter.

impl<'a, V> Deref for WriteGuard<'a, V>

type Target = V

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, V> DerefMut for WriteGuard<'a, V>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<'a, V> Display for WriteGuard<'a, V>

where V: Display,

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

Formats the value using the given formatter.

impl<'a, V> PartialEq for WriteGuard<'a, V>

where V: PartialEq,

fn eq(&self, other: &Self) -> 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<'a, V> Eq for WriteGuard<'a, V>

where V: Eq,