forked from floraachy/ImageKnife
78 lines
2.8 KiB
Plaintext
78 lines
2.8 KiB
Plaintext
/*
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* Copyright (C) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import ArkWorker from '@ohos.worker'
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@Entry
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@Component
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struct TestMultiThreadWorkerPage2 {
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build() {
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Scroll() {
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Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
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Button("创建Worker向子线程发送携带Arraybuffer数据")
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.margin({ top: 20 })
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.onClick(() => {
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let worker = new ArkWorker.Worker("entry/ets/pages/workers/worker1.js", {
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type: "classic",
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name: "zhangsan"
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})
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worker.onerror = function (data) {
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console.info("worker:: receive onerror " + data.lineno + ", msg = " + data.message + ", filename = " + data.filename + ", colno = " + data.colno);
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}
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worker.onmessageerror = function (e) {
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console.log("worker:: receive onmessageerror ");
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}
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worker.onexit = function () {
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console.log("worker:: receive onexit");
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}
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worker.onmessage = function (e) {
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var data = e.data;
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switch (data.type) {
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case "normal":
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console.log("worker:: onmessage " + data.data);
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break;
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case "buffer":
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console.log("worker:: receive buffer length is " + data.data.byteLength);
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break;
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default:
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console.log("worker:: worker.js receive unknow type");
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break
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}
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worker.terminate();
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}
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console.log("worker:: start post buffer");
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let uint8array = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7])
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let buffer = uint8array.buffer.slice(uint8array.byteOffset, uint8array.byteLength + uint8array.byteOffset)
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var obj = { type: "buffer", data: buffer };
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console.log("worker:: before post, buffer length is " + obj.data.byteLength);
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worker.postMessage(obj, [buffer]);
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console.log("worker:: after post, buffer length is " + obj.data.byteLength);
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console.info("end post buffer");
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});
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}
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}
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.width('100%')
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.height('100%')
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}
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}
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