devela::_dep::sdl3::sys::mutex

Struct SDL_RWLock

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#[repr(C)]
pub struct SDL_RWLock { /* private fields */ }

Available on crate feature dep_sdl3 only.

Expand description

A mutex that allows read-only threads to run in parallel.

A rwlock is roughly the same concept as SDL_Mutex, but allows threads that request read-only access to all hold the lock at the same time. If a thread requests write access, it will block until all read-only threads have released the lock, and no one else can hold the thread (for reading or writing) at the same time as the writing thread.

This can be more efficient in cases where several threads need to access data frequently, but changes to that data are rare.

There are other rules that apply to rwlocks that don’t apply to mutexes, about how threads are scheduled and when they can be recursively locked. These are documented in the other rwlock functions.

§Availability

This struct is available since SDL 3.2.0.

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Struct SDL_RWLockCopy item path

§Availability

Auto Trait Implementations§

impl Freeze for SDL_RWLock

impl RefUnwindSafe for SDL_RWLock

impl Send for SDL_RWLock

impl Sync for SDL_RWLock

impl Unpin for SDL_RWLock

impl UnwindSafe for SDL_RWLock

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fn type_id(&self) -> TypeId

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Struct SDL_RWLock

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T, R> Chain<R> for T
where T: ?Sized,

fn chain<F>(self, f: F) -> R
where F: FnOnce(Self) -> R, Self: Sized,

fn chain_ref<F>(&self, f: F) -> R
where F: FnOnce(&Self) -> R,

fn chain_mut<F>(&mut self, f: F) -> R
where F: FnOnce(&mut Self) -> R,

impl<T> ExtAny for T
where T: Any + ?Sized,

fn as_any_ref(&self) -> &dyn Any
where Self: Sized,

fn as_any_mut(&mut self) -> &mut dyn Any
where Self: Sized,

fn as_any_box(self: Box<Self>) -> Box<dyn Any>
where Self: Sized,

impl<T> ExtMem for T
where T: ?Sized,

fn mem_copy(&self) -> Self
where Self: Copy,

fn mem_drop(self)
where Self: Sized,

fn mem_forget(self)
where Self: Sized,

fn mem_replace(&mut self, other: Self) -> Self
where Self: Sized,

fn mem_take(&mut self) -> Self
where Self: Default,

fn mem_swap(&mut self, other: &mut Self)
where Self: Sized,

fn mem_as_bytes(&self) -> &[u8] ⓘ
where Self: Sync + Unpin,

fn mem_as_bytes_mut(&mut self) -> &mut [u8] ⓘ
where Self: Sync + Unpin,

fn hook_ref<F>(self, f: F) -> Self
where F: FnOnce(&Self),

fn hook_mut<F>(self, f: F) -> Self
where F: FnOnce(&mut Self),

impl<T, U> Into<U> for T
where U: From<T>,

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
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