# Type Definition parking_lot::MappedRwLockWriteGuard [−] [src]

    type MappedRwLockWriteGuard<'a, T> = MappedRwLockWriteGuard<'a, RawRwLock, T>;

An RAII write lock guard returned by `RwLockWriteGuard::map`, which can point to a subfield of the protected data.

The main difference between `MappedRwLockWriteGuard` and `RwLockWriteGuard` is that the former doesn’t support temporarily unlocking and re-locking, since that could introduce soundness issues if the locked object is modified by another thread.