Struct kernel::sync::ReadLock

pub struct ReadLock;

A marker for locks that only allow reading.

Trait Implementations

impl<T: ?Sized> Lock<ReadLock> for RwSemaphore<T>

type Inner = T

The type of the data protected by the lock.

type GuardContext = EmptyGuardContext

The type of context, if any, that needs to be stored in the guard.

fn lock_noguard(&self) -> EmptyGuardContext

Acquires the lock, making the caller its owner.

unsafe fn unlock(&self, _: &mut EmptyGuardContext)

Releases the lock, giving up ownership of the lock.

fn locked_data(&self) -> &UnsafeCell<T>

Returns the data protected by the lock.

fn relock(&self, ctx: &mut Self::GuardContext)

Reacquires the lock, making the caller its owner.

impl<L: Lock + ?Sized> Lock<ReadLock> for SeqLock<L>

type Inner = <L as Lock<WriteLock>>::Inner

The type of the data protected by the lock.

type GuardContext = <L as Lock<WriteLock>>::GuardContext

The type of context, if any, that needs to be stored in the guard.

fn lock_noguard(&self) -> L::GuardContext

Acquires the lock, making the caller its owner.

fn relock(&self, ctx: &mut L::GuardContext)

Reacquires the lock, making the caller its owner.

unsafe fn unlock(&self, ctx: &mut L::GuardContext)

Releases the lock, giving up ownership of the lock.

fn locked_data(&self) -> &UnsafeCell<L::Inner>

Returns the data protected by the lock.

impl LockInfo for ReadLock

type Writable = False

Determines if the data protected by a lock is writable.