LEAP_ALLOCATOR

Struct LEAP_ALLOCATOR 

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#[repr(C, packed(1))]
pub struct LEAP_ALLOCATOR { pub allocate: Option<unsafe extern "C" fn(size: u32, typeHint: eLeapAllocatorType, state: *mut c_void) -> *mut c_void>, pub deallocate: Option<unsafe extern "C" fn(ptr: *mut c_void, state: *mut c_void)>, pub state: *mut c_void, }
Expand description

\ingroup Structs Specifies the allocator/deallocator functions to be used when the library needs to dynamically manage memory. @since 4.0.0

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§allocate: Option<unsafe extern "C" fn(size: u32, typeHint: eLeapAllocatorType, state: *mut c_void) -> *mut c_void>

Function pointer to an allocator function that is expected to return a pointer to memory of at least the specified size in bytes. This will be called when the library needs a block of memory that will be provided back to the client in a subsequent event or response. A type hint is provided in the case where the underlying buffer type needs to be known at allocation time.

§deallocate: Option<unsafe extern "C" fn(ptr: *mut c_void, state: *mut c_void)>

Function pointer to a deallocator function. The function receives the address of a previously allocated block of memory from the allocate function pointer. The caller is not required to deallocate the memory, but rather this call is used by the library to indicate to the client that it will no longer reference the memory at this address, and that the callee may deallocate the memory when it is ready to do so.

§state: *mut c_void

Pointer to state to be passed to the allocate and deallocate functions.

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impl Clone for LEAP_ALLOCATOR

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fn clone(&self) -> LEAP_ALLOCATOR

Returns a duplicate of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

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

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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 Copy for LEAP_ALLOCATOR

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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.