1/* 2 * Copyright (c) 2022-2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import { int32 } from "@koalaui/common" 17 18export enum Access { 19 READ = 1, // 1 << 0, 20 WRITE = 2, // 1 << 1, 21 READWRITE = 3, // READ | WRITE 22} 23export function isRead(access: Access) { 24 return access & Access.READ 25} 26export function isWrite(access: Access) { 27 return access & Access.WRITE 28} 29 30export type Exec<P, R> = (pointer: P) => R 31export type ExecWithLength<P, R> = (pointer: P, length: int32) => R 32 33export type TypedArray = 34 Uint8Array 35 | Int8Array 36 | Uint16Array 37 | Int16Array 38 | Uint32Array 39 | Int32Array 40 | Float32Array 41 | Float64Array 42 43export type PtrArray = Uint32Array | BigUint64Array