Trait lock_api::RawRwLockUpgradeDowngrade [−][src]
pub unsafe trait RawRwLockUpgradeDowngrade: RawRwLockUpgrade + RawRwLockDowngrade { 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)[src]
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)[src]
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.