Struct rcl_sys::rcutils::allocator::rcutils_allocator_t

#[repr(C)]
pub struct rcutils_allocator_t {
    pub allocate: Option<unsafe extern "C" fn(size: usize, state: *mut c_void) -> *mut c_void>,
    pub deallocate: Option<unsafe extern "C" fn(pointer: *mut c_void, state: *mut c_void)>,
    pub reallocate: Option<unsafe extern "C" fn(pointer: *mut c_void, size: usize, state: *mut c_void) -> *mut c_void>,
    pub zero_allocate: Option<unsafe extern "C" fn(number_of_elements: usize, size_of_element: usize, state: *mut c_void) -> *mut c_void>,
    pub state: *mut c_void,
}

Encapsulation of an allocator.

Fields

allocate: Option<unsafe extern "C" fn(size: usize, state: *mut c_void) -> *mut c_void>

Allocate memory, given a size and the state pointer.

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

Deallocate previously allocated memory, mimicking free().

reallocate: Option<unsafe extern "C" fn(pointer: *mut c_void, size: usize, state: *mut c_void) -> *mut c_void>

Reallocate if possible, otherwise it deallocates and allocates.

zero_allocate: Option<unsafe extern "C" fn(number_of_elements: usize, size_of_element: usize, state: *mut c_void) -> *mut c_void>

Allocate memory with all elements set to zero, given a number of elements and their size.

state: *mut c_void

Implementation defined state storage.

Trait Implementations

impl Debug for rcutils_allocator_t

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

Formats the value using the given formatter.