Function ocl::ffi::clEnqueueWriteBuffer

pub unsafe extern "system" fn clEnqueueWriteBuffer(command_queue: *mut c_void,
                                                   buffer: *mut c_void,
                                                   blocking_write: u32,
                                                   offset: usize,
                                                   cb: usize,
                                                   ptr: *const c_void,
                                                   num_events_in_wait_list: u32,
                                                   event_wait_list: *const *mut c_void,
                                                   event: *mut *mut c_void)
                                                   -> i32