Function fil_ocl_core::enqueue_map_image

pub unsafe fn enqueue_map_image<T, M, En, Ewl>(
    command_queue: &CommandQueue, 
    image: M, 
    block: bool, 
    map_flags: MapFlags, 
    origin: [usize; 3], 
    region: [usize; 3], 
    row_pitch_bytes: &mut usize, 
    slc_pitch_bytes: &mut usize, 
    wait_list: Option<Ewl>, 
    new_event: Option<En>
) -> OclCoreResult<MemMap<T>> where
    T: OclPrm,
    En: ClNullEventPtr,
    Ewl: ClWaitListPtr,
    M: AsMem<T> + MemCmdAll, 

Enqueues a command to map a region of the image object given by image into the host address space and returns a pointer to this mapped region.

SDK Docs

Safety

Caller must ensure that the returned pointer is not used until the map is complete. Use new_event to monitor it. It also must be ensured that memory referred to by the returned pointer is not dropped, reused, or otherwise interfered with until enqueue_unmap_mem_object is called.