# Trait lock_api::RawRwLockUpgradeTimed [−] [src]

    pub unsafe trait RawRwLockUpgradeTimed: RawRwLockUpgrade + RawRwLockTimed {
        fn try_lock_upgradable_for(&self, timeout: Self::Duration) -> bool;
        fn try_lock_upgradable_until(&self, timeout: Self::Instant) -> bool;
        unsafe fn try_upgrade_for(&self, timeout: Self::Duration) -> bool;
        unsafe fn try_upgrade_until(&self, timeout: Self::Instant) -> bool;
    }

Additional methods for RwLocks which support upgradable locks and locking with timeouts.

## Required methods

### `fn try_lock_upgradable_for(&self, timeout: Self::Duration) -> bool` [src]

Attempts to acquire an upgradable lock until a timeout is reached.

### `fn try_lock_upgradable_until(&self, timeout: Self::Instant) -> bool` [src]

Attempts to acquire an upgradable lock until a timeout is reached.

### `unsafe fn try_upgrade_for(&self, timeout: Self::Duration) -> bool` [src]

Attempts to upgrade an upgradable lock to an exclusive lock until a timeout is reached.

# Safety

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

### `unsafe fn try_upgrade_until(&self, timeout: Self::Instant) -> bool` [src]

Attempts to upgrade an upgradable lock to an exclusive lock until a timeout is reached.

# Safety

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

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## Implementors

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