pub struct VirtAddr(/* private fields */);
Expand description

A virtual memory address.

It’s a wrapper type around an usize.

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impl VirtAddr

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pub const fn from(addr: usize) -> VirtAddr

Converts an usize to a virtual address.

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pub const fn as_usize(self) -> usize

Converts the address to an usize.

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pub const fn as_ptr(self) -> *const u8

Converts the virtual address to a raw pointer.

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pub const fn as_mut_ptr(self) -> *mut u8

Converts the virtual address to a mutable raw pointer.

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pub fn align_down<U>(self, align: U) -> VirtAddr
where U: Into<usize>,

Aligns the address downwards to the given alignment.

See the align_down function for more information.

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pub fn align_up<U>(self, align: U) -> VirtAddr
where U: Into<usize>,

Aligns the address upwards to the given alignment.

See the align_up function for more information.

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pub fn align_offset<U>(self, align: U) -> usize
where U: Into<usize>,

Returns the offset of the address within the given alignment.

See the align_offset function for more information.

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pub fn is_aligned<U>(self, align: U) -> bool
where U: Into<usize>,

Checks whether the address has the demanded alignment.

See the is_aligned function for more information.

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pub fn align_down_4k(self) -> VirtAddr

Aligns the address downwards to 4096 (bytes).

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pub fn align_up_4k(self) -> VirtAddr

Aligns the address upwards to 4096 (bytes).

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pub fn align_offset_4k(self) -> usize

Returns the offset of the address within a 4K-sized page.

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pub fn is_aligned_4k(self) -> bool

Checks whether the address is 4K-aligned.

Trait Implementations§

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impl Add<usize> for VirtAddr

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type Output = VirtAddr

The resulting type after applying the + operator.
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fn add(self, rhs: usize) -> VirtAddr

Performs the + operation. Read more
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impl AddAssign<usize> for VirtAddr

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fn add_assign(&mut self, rhs: usize)

Performs the += operation. Read more
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impl Clone for VirtAddr

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fn clone(&self) -> VirtAddr

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for VirtAddr

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for VirtAddr

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fn default() -> VirtAddr

Returns the “default value” for a type. Read more
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impl From<usize> for VirtAddr

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fn from(addr: usize) -> VirtAddr

Converts to this type from the input type.
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impl LowerHex for VirtAddr

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.
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impl Ord for VirtAddr

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fn cmp(&self, other: &VirtAddr) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for VirtAddr

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fn eq(&self, other: &VirtAddr) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for VirtAddr

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fn partial_cmp(&self, other: &VirtAddr) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Sub<usize> for VirtAddr

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type Output = VirtAddr

The resulting type after applying the - operator.
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fn sub(self, rhs: usize) -> VirtAddr

Performs the - operation. Read more
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impl SubAssign<usize> for VirtAddr

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fn sub_assign(&mut self, rhs: usize)

Performs the -= operation. Read more
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impl UpperHex for VirtAddr

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.
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impl Copy for VirtAddr

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impl Eq for VirtAddr

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impl StructuralEq for VirtAddr

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impl StructuralPartialEq for VirtAddr

Auto Trait Implementations§

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> AsAny for T
where T: Any,

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fn as_any(&self) -> &(dyn Any + 'static)

把当前对象转化为 Any 类型,供后续 downcast 使用
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

供 downcast_mut 使用
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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.