Struct rustc_data_structures::sync::lock::maybe_sync::Lock
source · pub struct Lock<T> {
mode: Mode,
mode_union: ModeUnion,
data: UnsafeCell<T>,
}
Expand description
A lock which only uses synchronization if might_be_dyn_thread_safe
is true.
It implements DynSend
and DynSync
instead of the typical Send
and Sync
.
Fields§
§mode: Mode
Indicates if synchronization is used via mode_union.sync
if it’s Sync
, or if a
not thread safe cell is used via mode_union.no_sync
if it’s NoSync
.
This is set on initialization and never changed.
mode_union: ModeUnion
§data: UnsafeCell<T>
Implementations§
source§impl<T> Lock<T>
impl<T> Lock<T>
pub fn new(inner: T) -> Self
pub fn into_inner(self) -> T
pub fn get_mut(&mut self) -> &mut T
pub fn try_lock(&self) -> Option<LockGuard<'_, T>>
sourcepub unsafe fn lock_assume(&self, mode: Mode) -> LockGuard<'_, T>
pub unsafe fn lock_assume(&self, mode: Mode) -> LockGuard<'_, T>
This acquires the lock assuming synchronization is in a specific mode.
Safety
This method must only be called with Mode::Sync
if might_be_dyn_thread_safe
was
true on lock creation.
pub fn lock(&self) -> LockGuard<'_, T>
Auto Trait Implementations§
impl<T> !Freeze for Lock<T>
impl<T> !RefUnwindSafe for Lock<T>
impl<T> Send for Lock<T>where
T: Send,
impl<T> !Sync for Lock<T>
impl<T> Unpin for Lock<T>where
T: Unpin,
impl<T> UnwindSafe for Lock<T>where
T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
Layout§
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.