⚠️ VeridianOS Kernel Documentation - This is low-level kernel code. All functions are unsafe unless explicitly marked otherwise. no_std

PiMutex

Struct PiMutex 

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pub struct PiMutex { /* private fields */ }
Expand description

Priority Inheritance Mutex

Prevents priority inversion by temporarily boosting the lock holder’s priority to that of the highest-priority waiter. When the lock is released, the original priority is restored.

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impl PiMutex

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pub const fn new() -> Self

Create a new priority inheritance mutex

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pub fn try_lock(&self) -> bool

Try to acquire the mutex without blocking

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pub fn lock(&self)

Acquire the mutex, boosting the holder’s priority if necessary.

If the lock is held by a lower-priority task, the holder’s effective priority is boosted to prevent priority inversion.

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pub fn unlock(&self) -> Result<(), KernelError>

Release the mutex and restore the original priority.

Wakes the highest-priority waiter.

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pub fn is_locked(&self) -> bool

Check if mutex is locked

Trait Implementations§

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impl Default for PiMutex

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl !Freeze for PiMutex

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impl !RefUnwindSafe for PiMutex

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impl Send for PiMutex

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impl Sync for PiMutex

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impl Unpin for PiMutex

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impl UnwindSafe for PiMutex

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.