Struct SeqlockReadGuard

pub struct SeqlockReadGuard<'a, T: ?Sized + 'a> { /* private fields */ }

顺序锁共享读临界区的守卫

共享读临界区的守卫只提供解引用到只读引用。

Implementations

impl<'a, T: ?Sized> SeqlockReadGuard<'a, T>

pub fn read_retry(&self) -> bool

关闭共享读临界区，并检查是否需要重试

• 当顺序锁的顺序值没有发生变化，返回 [false] ;
• 当顺序锁的顺序值发生了变化，返回 [true] 。

示例

loop {
    let guard = sqlk.read_begin();
    let val = *guard;
    if !guard.read_retry() {
        break;
    }
}

Trait Implementations

impl<T: ?Sized> Deref for SeqlockReadGuard<'_, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T: ?Sized> !Send for SeqlockReadGuard<'_, T>

impl<T: ?Sized + Sync> Sync for SeqlockReadGuard<'_, T>