Function ocl::ffi::clEnqueueBarrierWithWaitList

pub unsafe extern "system" fn clEnqueueBarrierWithWaitList(command_queue: *mut c_void,
                                                           num_events_in_wait_list: u32,
                                                           event_wait_list: *const *mut c_void,
                                                           event: *mut *mut c_void)
                                                           -> i32