Struct ReadGuard 

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

An RAII read guard returned by the get methods of the synchronous containers (SyncHashMap, SyncBtreeMap, SyncVec, SyncIndexMap).

Reading the value is lock-free and contention-free: the guard only holds a reader slot in the calling thread’s private counter (writers wait for all threads’ counters to drain before mutating), so the pointed-to value can never be invalidated or raced while the guard is alive. It is not Send: it must be dropped on the same thread that created it.

Trait Implementations

impl<'a, V: Debug> Debug for ReadGuard<'a, V>

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

Formats the value using the given formatter.

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

type Target = V

The resulting type after dereferencing.

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

Dereferences the value.

impl<'a, V: Display> Display for ReadGuard<'a, V>

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

Formats the value using the given formatter.

impl<'a, V> Drop for ReadGuard<'a, V>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl<'a, V: Eq> Eq for ReadGuard<'a, V>

impl<'a, V: PartialEq> PartialEq for ReadGuard<'a, V>

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

Equality operator ==.

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

Inequality operator !=.

impl<'a, V: PartialEq> PartialEq<&V> for ReadGuard<'a, V>

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

Equality operator ==.

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

Inequality operator !=.

impl<'a, V: PartialEq> PartialEq<V> for ReadGuard<'a, V>

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

Equality operator ==.

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

Inequality operator !=.