Function ocl::ffi::clEnqueueMapBuffer

pub unsafe extern "system" fn clEnqueueMapBuffer(command_queue: *mut c_void,
                                                 buffer: *mut c_void,
                                                 blocking_map: u32,
                                                 map_flags: u64,
                                                 offset: usize,
                                                 size: usize,
                                                 num_events_in_wait_list: u32,
                                                 event_wait_list: *const *mut c_void,
                                                 event: *mut *mut c_void,
                                                 errorcode_ret: *mut i32)
                                                 -> *mut c_void