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Block

Struct Block 

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pub struct Block<T> {
    pub pointer: RelativePtr<T>,
}
Expand description

A typed handle to an allocated block in the matrix.

Since the matrix operates entirely on raw pointer addresses and internal types, Block<T> is provided at the API level to wrap allocations into a typed, ergonomic handle. The raw RelativePtr returned by the matrix is reinterpreted as T and wrapped in Block<T> to maintain type information at the surface layer. All pointer arithmetic is delegated to the inner RelativePtr<T>, referred to as pointer.

§Validity

A Block<T> is valid as long as:

  • The originating MatrixHandler (and its mmap) is alive.
  • The block has not been freed via handler.free().

Blocks carry no lifetime parameter. The caller is responsible for not using a block after freeing it or after the handler is dropped.

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§pointer: RelativePtr<T>

Payload offset from SHM base — points past the BlockHeader.

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impl<T: Debug> Debug for Block<T>

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

Formats the value using the given formatter. Read more

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impl<T> Freeze for Block<T>

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impl<T> RefUnwindSafe for Block<T>
where T: RefUnwindSafe,

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impl<T> Send for Block<T>
where T: Send,

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impl<T> Sync for Block<T>
where T: Sync,

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impl<T> Unpin for Block<T>
where T: Unpin,

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impl<T> UnsafeUnpin for Block<T>

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impl<T> UnwindSafe for Block<T>
where T: UnwindSafe,

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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.