Trait lock_api::rwlock::RawRwLockUpgradeDowngrade

pub unsafe trait RawRwLockUpgradeDowngrade: RawRwLockUpgrade + RawRwLockDowngrade {
    // Required methods
    unsafe fn downgrade_upgradable(&self);
    unsafe fn downgrade_to_upgradable(&self);
}

Additional methods for RwLocks which support upgradable locks and lock downgrading.

Required Methods

unsafe fn downgrade_upgradable(&self)

Downgrades an upgradable lock to a shared lock.

Safety

This method may only be called if an upgradable lock is held in the current context.

unsafe fn downgrade_to_upgradable(&self)

Downgrades an exclusive lock to an upgradable lock.

Safety

This method may only be called if an exclusive lock is held in the current context.

Object Safety

This trait is not object safe.

Implementors