Struct RefGuard 

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

Read guard without value lock, only structure lock (read-only access) 无值锁的读守护者，只有结构锁（只读访问）

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 RefGuard<'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 RefGuard<'a, V>

where V: Debug,

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

Formats the value using the given formatter.

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

type Target = V

The resulting type after dereferencing.

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

Dereferences the value.

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

where V: Display,

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

Formats the value using the given formatter.

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

where V: Eq,