Struct MapReadGuard 

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

Guardian of read-only value reference without value lock, holding HashMap read lock only 无值锁的只读值引用守护者，仅持有HashMap读锁

Safety

此结构绕过了保护值的 RwLock，仅当您确定没有其他线程正在修改该值时才应使用。 This struct bypasses the RwLock protecting the value. It should only be used when you are sure that no other thread is modifying the value.

Trait Implementations

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

where V: Debug,

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

Formats the value using the given formatter.

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

type Target = V

The resulting type after dereferencing.

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

Dereferences the value.

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

where V: Display,

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

Formats the value using the given formatter.

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

where V: Eq,