Pre Merge pull request !208 from 17792399693/master

CHANGELOG.md

@@ -9,6 +9,7 @@
 - 修改全局请求头覆盖request请求头
 - imageKnife支持heic测试demo独立页面展示
 - drawLifeCycle支持gif图
+- ImageKnife控制重要图片请求加载优先级
 
 ## 2.1.2-rc.12
 - 新增gif播放次数功能

README.md

@@ -336,12 +336,13 @@ request.skipMemoryCache(true)
 ### ImageKnife 启动器/门面类
 
 | 方法名                              | 入参                   | 接口描述                                                     |
-| ------------------------------- | ---------------------- | ---------------------------------- |
+|----------------------------------| ---------------------- | ------------------------------------------------------------ |
 | call(request: RequestOption)     | request: RequestOption | 根据用户配置参数具体执行加载流程                             |
 | preload(request: RequestOption)  | request: RequestOption | 根据用户配置参数具体执行预加载流程                           |
 | pauseRequests()                  |                        | 全局暂停请求                                                 |
 | resumeRequests()                 |                        | 全局恢复暂停                                                 |
 | isUrlExist(url, cacheType, size) | url, CacheType, Size   | 判断图片是否在 缓存和磁盘中存在，如果入参是缓存，需要传入值图片大小,参数 CacheType, Size（可选） |
+| setMaxNumRequests(count: number) | count            | 设置请求的最大并发数量                                             |
 
 ### 缓存策略相关
 
@@ -446,6 +447,13 @@ export default class EntryAbility extends UIAbility {
 }
 ```
 
+### Queue
+
+| 方法名                              | 入参                    | 接口描述                       |
+| ----------------------------------- | ----------------------- | ------------------------------ |
+| getQueueLength(): number            |                         | 获取队列总长度                 |
+| add(requestInfo: RequestInfo): void | requestInfo:RequestInfo | 在队列尾部插入元素             |
+| pop(): RequestInfo | undefined     |                         | 删除队列头元素并返回该删除元素 |
 
 ## 约束与限制
 

entry/src/main/ets/pages/testPriorityComponent.ets

@@ -12,71 +12,160 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import { ImageKnifeComponent , Priority , NONE } from '@ohos/libraryimageknife'
+import { ImageKnifeComponent, ImageKnifeOption, Priority, NONE, ImageKnifeGlobal } from '@ohos/libraryimageknife';
+const dataBak: ImageKnifeOption[] = [
+  {
+    loadSrc: "http://b.hiphotos.baidu.com/image/pic/item/9d82d158ccbf6c81b94575cfb93eb13533fa40a2.jpg",
+    priority: Priority.HIGH
+  },
+  {
+    loadSrc: "http://e.hiphotos.baidu.com/image/pic/item/4bed2e738bd4b31c1badd5a685d6277f9e2ff81e.jpg",
+    priority: Priority.HIGH
+  },
+  {
+    loadSrc: "http://g.hiphotos.baidu.com/image/pic/item/0d338744ebf81a4c87a3add4d52a6059252da61e.jpg",
+    priority: Priority.HIGH
+  },
+  {
+    loadSrc: "http://a.hiphotos.baidu.com/image/pic/item/f2deb48f8c5494ee5080c8142ff5e0fe99257e19.jpg",
+    priority: Priority.HIGH
+  },
+  {
+    loadSrc: "http://f.hiphotos.baidu.com/image/pic/item/4034970a304e251f503521f5a586c9177e3e53f9.jpg",
+    priority: Priority.HIGH
+  },
+  {
+    loadSrc: "http://h.hiphotos.baidu.com/image/pic/item/902397dda144ad340668b847d4a20cf430ad851e.jpg",
+    priority: Priority.MEDIUM
+  },
+  {
+    loadSrc:"http://b.hiphotos.baidu.com/image/pic/item/359b033b5bb5c9ea5c0e3c23d139b6003bf3b374.jpg",
+    priority: Priority.MEDIUM
+  },
+  {
+    loadSrc: "http://a.hiphotos.baidu.com/image/pic/item/8d5494eef01f3a292d2472199d25bc315d607c7c.jpg",
+    priority: Priority.MEDIUM
+  },
+  {
+    loadSrc: "http://b.hiphotos.baidu.com/image/pic/item/e824b899a9014c08878b2c4c0e7b02087af4f4a3.jpg",
+    priority: Priority.MEDIUM
+  },
+  {
+    loadSrc: "http://g.hiphotos.baidu.com/image/pic/item/6d81800a19d8bc3e770bd00d868ba61ea9d345f2.jpg",
+    priority: Priority.MEDIUM
+  },
+  {
+    loadSrc: "http://b.hiphotos.baidu.com/image/pic/item/e824b899a9014c08878b2c4c0e7b02087af4f4a3.jpg",
+    priority: Priority.LOW
+  },
+  {
+    loadSrc: "http://b.hiphotos.baidu.com/image/pic/item/359b033b5bb5c9ea5c0e3c23d139b6003bf3b374.jpg",
+    priority: Priority.LOW
+  },
+  {
+    loadSrc: "http://h.hiphotos.baidu.com/image/pic/item/902397dda144ad340668b847d4a20cf430ad851e.jpg",
+    priority: Priority.LOW
+  },
+  {
+    loadSrc: "http://d.hiphotos.baidu.com/image/pic/item/b58f8c5494eef01f119945cbe2fe9925bc317d2a.jpg",
+    priority: Priority.LOW
+  },
+  {
+    loadSrc:"http://img2.xkhouse.com/bbs/hfhouse/data/attachment/forum/corebbs/2009-11/2009113011534566298.jpg",
+    priority: Priority.LOW
+  }
+];
 
 @Entry
 @Component
 struct TestPriorityComponent {
-  private data: string[] = [
+  @State data: ImageKnifeOption[] = [
-    "http://e.hiphotos.baidu.com/image/pic/item/a1ec08fa513d2697e542494057fbb2fb4316d81e.jpg",
+    {
-    "http://c.hiphotos.baidu.com/image/pic/item/30adcbef76094b36de8a2fe5a1cc7cd98d109d99.jpg",
+      loadSrc: "https://gd-hbimg.huaban.com/e0a25a7cab0d7c2431978726971d61720732728a315ae-57EskW_fw658",
-    "http://h.hiphotos.baidu.com/image/pic/item/7c1ed21b0ef41bd5f2c2a9e953da81cb39db3d1d.jpg",
+      priority: Priority.HIGH
-    "http://g.hiphotos.baidu.com/image/pic/item/55e736d12f2eb938d5277fd5d0628535e5dd6f4a.jpg",
+    },
-    "http://e.hiphotos.baidu.com/image/pic/item/4e4a20a4462309f7e41f5cfe760e0cf3d6cad6ee.jpg",
+    {
-    "http://b.hiphotos.baidu.com/image/pic/item/9d82d158ccbf6c81b94575cfb93eb13533fa40a2.jpg",
+      loadSrc: "http://c.hiphotos.baidu.com/image/pic/item/30adcbef76094b36de8a2fe5a1cc7cd98d109d99.jpg",
-    "http://e.hiphotos.baidu.com/image/pic/item/4bed2e738bd4b31c1badd5a685d6277f9e2ff81e.jpg",
+      priority: Priority.HIGH
-    "http://g.hiphotos.baidu.com/image/pic/item/0d338744ebf81a4c87a3add4d52a6059252da61e.jpg",
+    },
-    "http://a.hiphotos.baidu.com/image/pic/item/f2deb48f8c5494ee5080c8142ff5e0fe99257e19.jpg",
+    {
-    "http://f.hiphotos.baidu.com/image/pic/item/4034970a304e251f503521f5a586c9177e3e53f9.jpg",
+      loadSrc: "http://h.hiphotos.baidu.com/image/pic/item/7c1ed21b0ef41bd5f2c2a9e953da81cb39db3d1d.jpg",
-    "http://b.hiphotos.baidu.com/image/pic/item/279759ee3d6d55fbb3586c0168224f4a20a4dd7e.jpg",
+      priority: Priority.HIGH
-    "http://img2.xkhouse.com/bbs/hfhouse/data/attachment/forum/corebbs/2009-11/2009113011534566298.jpg",
+    },
-    "http://a.hiphotos.baidu.com/image/pic/item/e824b899a9014c087eb617650e7b02087af4f464.jpg",
+    {
-    "http://c.hiphotos.baidu.com/image/pic/item/9c16fdfaaf51f3de1e296fa390eef01f3b29795a.jpg",
+      loadSrc: "http://g.hiphotos.baidu.com/image/pic/item/55e736d12f2eb938d5277fd5d0628535e5dd6f4a.jpg",
-    "http://d.hiphotos.baidu.com/image/pic/item/b58f8c5494eef01f119945cbe2fe9925bc317d2a.jpg",
+      priority: Priority.HIGH
-    "http://h.hiphotos.baidu.com/image/pic/item/902397dda144ad340668b847d4a20cf430ad851e.jpg",
+    },
-    "http://b.hiphotos.baidu.com/image/pic/item/359b033b5bb5c9ea5c0e3c23d139b6003bf3b374.jpg",
+    {
-    "http://a.hiphotos.baidu.com/image/pic/item/8d5494eef01f3a292d2472199d25bc315d607c7c.jpg",
+      loadSrc: "http://e.hiphotos.baidu.com/image/pic/item/4e4a20a4462309f7e41f5cfe760e0cf3d6cad6ee.jpg",
-    "http://b.hiphotos.baidu.com/image/pic/item/e824b899a9014c08878b2c4c0e7b02087af4f4a3.jpg",
+      priority: Priority.HIGH
-    "http://g.hiphotos.baidu.com/image/pic/item/6d81800a19d8bc3e770bd00d868ba61ea9d345f2.jpg",
+    },
-    "https://hbimg.huabanimg.com/cc6af25f8d782d3cf3122bef4e61571378271145735e9-vEVggB",
+    {
-    'https://img-blog.csdnimg.cn/20191215043500229.png',
+      loadSrc: "http://b.hiphotos.baidu.com/image/pic/item/279759ee3d6d55fbb3586c0168224f4a20a4dd7e.jpg",
-    'https://img-blog.csdn.net/20140514114029140',
+      priority: Priority.MEDIUM
-    'https://hbimg.huabanimg.com/95a6d37a39aa0b70d48fa18dc7df8309e2e0e8e85571e-x4hhks_fw658/format/webp'
+    },
-  ]
+    {
+      loadSrc: "http://img2.xkhouse.com/bbs/hfhouse/data/attachment/forum/corebbs/2009-11/2009113011534566298.jpg",
+      priority: Priority.MEDIUM
+    },
+    {
+      loadSrc: "http://a.hiphotos.baidu.com/image/pic/item/e824b899a9014c087eb617650e7b02087af4f464.jpg",
+      priority: Priority.MEDIUM
+    },
+    {
+      loadSrc: "http://c.hiphotos.baidu.com/image/pic/item/9c16fdfaaf51f3de1e296fa390eef01f3b29795a.jpg",
+      priority: Priority.MEDIUM
+    },
+    {
+      loadSrc: "http://d.hiphotos.baidu.com/image/pic/item/b58f8c5494eef01f119945cbe2fe9925bc317d2a.jpg",
+      priority: Priority.MEDIUM
+    },
+    {
+      loadSrc: "https://hbimg.huabanimg.com/cc6af25f8d782d3cf3122bef4e61571378271145735e9-vEVggB",
+      priority: Priority.LOW
+    },
+    {
+      loadSrc: "https://img-blog.csdnimg.cn/20191215043500229.png",
+      priority: Priority.LOW
+    },
+    {
+      loadSrc: "https://img-blog.csdn.net/20140514114029140",
+      priority: Priority.LOW
+    },
+    {
+      loadSrc: "https://hbimg.huabanimg.com/95a6d37a39aa0b70d48fa18dc7df8309e2e0e8e85571e-x4hhks_fw658/format/webp",
+      priority: Priority.LOW
+    },
+    {
+      loadSrc: "http://g.hiphotos.baidu.com/image/pic/item/6d81800a19d8bc3e770bd00d868ba61ea9d345f2.jpg",
+      priority: Priority.LOW
+    }
+  ];
+  @State maxRequests: number | undefined = ImageKnifeGlobal?.getInstance()?.getImageKnife()?.maxRequests;
 
   build() {
     Column() {
+      Text('最大并发数： ' + this.maxRequests).width('50%').height(30)
+      Button('修改最大并发数为5').width('50%').height(30)
+        .onClick(() => {
+          if (ImageKnifeGlobal?.getInstance()?.getImageKnife()) {
+            ImageKnifeGlobal?.getInstance()?.getImageKnife()?.setMaxNumRequests(5);
+            this.maxRequests = ImageKnifeGlobal?.getInstance()?.getImageKnife()?.maxRequests;
+            this.data = [...dataBak];
+          }
+        })
       Grid() {
-        ForEach(this.data,(item:string,index:number)=>{
+        ForEach(this.data, (item: ImageKnifeOption, index: number) => {
           GridItem() {
-            if(index % 2 == 0){
+            Flex() {
+              Text(item?.priority?.toString() || '')
               ImageKnifeComponent({
                 imageKnifeOption: {
-                  loadSrc:item,
+                  loadSrc: item.loadSrc,
                   placeholderSrc: $r('app.media.icon_loading'),
                   strategy: new NONE(),
                   isCacheable: false,
-                  priority:Priority.LOW
+                  priority: item.priority
-                }
-              })
-            } else if (index % 3 == 0) {
-              ImageKnifeComponent({
-                imageKnifeOption:{
-                  loadSrc:item,
-                  placeholderSrc:$r('app.media.icon_loading'),
-                  strategy:new NONE(),
-                  isCacheable:false,
-                  priority:Priority.MEDIUM
-                }
-              })
-            } else {
-              ImageKnifeComponent({
-                imageKnifeOption:{
-                  loadSrc:item,
-                  placeholderSrc:$r('app.media.icon_loading'),
-                  strategy:new NONE(),
-                  isCacheable:false,
-                  priority:Priority.HIGH
                 }
               })
             }
@@ -85,8 +174,8 @@ struct TestPriorityComponent {
       }
       .width("100%")
       .height("100%")
-      .columnsTemplate("1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr")
+      .columnsTemplate("1fr 1fr 1fr 1fr 1fr")
-      .rowsTemplate("1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr")
+      .rowsTemplate("1fr 1fr 1fr 1fr 1fr ")
       .columnsGap(10)
       .backgroundColor(0xFAEEE0)
     }.width("100%").height("100%").backgroundColor(Color.Pink)

entry/src/ohosTest/ets/test/DefaultJobQueueTest.test.ets

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the 'License');
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an 'AS IS' BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { describe, it, expect } from '@ohos/hypium';
+import { ImageKnife, ImageKnifeGlobal, RequestOption } from '@ohos/imageknife/Index';
+import { DefaultJobQueue } from '@ohos/imageknife/src/main/ets/components/imageknife/utils/DefaultJobQueue';
+import { IJobQueue, RequestInfo } from '@ohos/imageknife/src/main/ets/components/imageknife/utils/IJobQueue';
+import taskpool from '@ohos.taskpool';
+import common from '@ohos.app.ability.common';
+
+export default function DefaultJobQueueTest() {
+
+  describe('DefaultJobQueueTest', () => {
+    it('testJob', 0, () => {
+      let job: IJobQueue = new DefaultJobQueue();
+      job.add(makeRequest("medium1", getContext() as common.UIAbilityContext));
+      job.add(makeRequest("medium2", getContext() as common.UIAbilityContext, taskpool.Priority.MEDIUM));
+      job.add(makeRequest("medium3", getContext() as common.UIAbilityContext));
+      job.add(makeRequest("low1", getContext() as common.UIAbilityContext, taskpool.Priority.LOW, 'placeholder'));
+      job.add(makeRequest("high1", getContext() as common.UIAbilityContext, taskpool.Priority.HIGH));
+      job.add(makeRequest("low2", getContext() as common.UIAbilityContext, taskpool.Priority.LOW));
+      job.add(makeRequest("medium4", getContext() as common.UIAbilityContext));
+
+      expect(job.getQueueLength()).assertEqual(7);
+      expect(job.pop()!.request.loadSrc).assertEqual("high1");
+      expect(job.pop()!.request.loadSrc).assertEqual("medium1");
+      expect(job.pop()!.request.loadSrc).assertEqual("medium2");
+      expect(job.pop()!.request.loadSrc).assertEqual("medium3");
+      expect(job.pop()!.request.loadSrc).assertEqual("medium4");
+      expect(job.pop()!.request.loadSrc).assertEqual("low1");
+      expect(job.pop()!.request.loadSrc).assertEqual("low2");
+      expect(job.pop()).assertEqual(undefined);
+      expect(job.getQueueLength()).assertEqual(0);
+    });
+
+    it("testMaxRequests", 1, () => {
+      let imageKnife: ImageKnife | undefined = ImageKnifeGlobal.getInstance().getImageKnife();
+      if (imageKnife) {
+        expect(imageKnife.maxRequests).assertEqual(1);
+        imageKnife.setMaxNumRequests(10);
+        expect(imageKnife.maxRequests).assertEqual(10);
+      };
+    })
+  });
+}
+
+function makeRequest(src: string, context: common.UIAbilityContext, priority: taskpool.Priority = taskpool.Priority.MEDIUM, usageType: string = 'main'): RequestInfo {
+  let requestInfo: RequestInfo = {
+    request: new RequestOption(),
+    usageType: usageType
+  }
+  requestInfo.request.loadSrc = src;
+  requestInfo.request.priority = priority;
+  requestInfo.request.moduleContext = context;
+  return requestInfo;
+}

entry/src/ohosTest/ets/test/List.test.ets

@@ -19,6 +19,7 @@ import Transfrom from './transfrom.test'
 import RequestOptionTest from './requestoption.test'
 import ImageKnifeTest from './imageknife.test'
 import DiskLruCacheTest from './diskLruCache.test'
+import DefaultJobQueueTest from './DefaultJobQueueTest.test';
 
 export default function testsuite() {
   abilityTest()
@@ -28,4 +29,5 @@ export default function testsuite() {
   Transfrom()
   RequestOptionTest()
   ImageKnifeTest();
+  DefaultJobQueueTest();
 }

library/src/main/ets/components/imageknife/ImageKnife.ets

@@ -42,6 +42,8 @@ import common from '@ohos.app.ability.common'
 import { MemoryLruCache } from '../cache/MemoryLruCache'
 import { BusinessError } from '@ohos.base'
 import taskpool from '@ohos.taskpool'
+import { DefaultJobQueue } from './utils/DefaultJobQueue';
+import { RequestInfo } from './utils/IJobQueue';
 import { GIFFrame } from './utils/gif/GIFFrame'
 import emitter from '@ohos.events.emitter';
 
@@ -87,6 +89,10 @@ export class ImageKnife {
   // 开发者可配置全局缓存
   engineKeyImpl: EngineKeyInterface;
   private mParseImageUtil: IParseImage<PixelMap>;
+  // 最大并发
+  maxRequests: number = 1;
+  // 排队队列
+  private jobQueue: DefaultJobQueue = new DefaultJobQueue();
 
   private constructor() {
     this.mParseImageUtil = new ParseImageUtil();
@@ -717,6 +723,15 @@ export class ImageKnife {
       request.loadComplete(mainCache);
       return;
     }
+	  // 判断是否要排队
+    if (this.runningMaps.size() > this.maxRequests) {
+      this.jobQueue.add({ request, usageType });
+      return;
+    }
+    this.executeTaskQueue(request, usageType);
+  }
+
+  private executeTaskQueue(request: RequestOption, usageType: string) {
     //组装可以通过sendable传递的数据
     let sendData:SendableData = this.assembleSendableData(request, usageType);
     //其他不能sendable发送的数据
@@ -770,12 +785,27 @@ export class ImageKnife {
           request.loadError("request resources error")
         }
       }
+      this.dispatchNextJob();
     }).catch((err: BusinessError | string) => {
-      request.loadError(err)
+      request.loadError(err);
+      this.dispatchNextJob();
     })
-
   }
 
+  // 分发下一个任务
+  dispatchNextJob() {
+    let requestInfo: RequestInfo | undefined = this.jobQueue.pop();
+    if (requestInfo?.request && requestInfo?.usageType) {
+      this.executeTaskQueue(requestInfo.request, requestInfo.usageType);
+    }
+  }
+
+  // 设置请求的最大并发数量
+  setMaxNumRequests(count: number) {
+    if (count > 0) {
+      this.maxRequests = count;
+    }
+  }
   private keyNotEmpty(request: RequestOption): boolean {
     if (
       request.generateCacheKey != null && request.generateCacheKey.length > 0 &&
@@ -906,8 +936,8 @@ async function taskExecute(sendData:SendableData,taskData:TaskParams): Promise<P
   newRequestOption.thumbDelayTime = sendData.getThumbDelayTime();
   newRequestOption.size = taskData.size;
 
-  if(taskData.loadSrc){
+  if(taskData.placeholderSrc){
-    newRequestOption.placeholderSrc = taskData.loadSrc as PixelMap | Resource | undefined;
+    newRequestOption.placeholderSrc = taskData.placeholderSrc as PixelMap | Resource | undefined;
   }
   if(taskData.errorholderSrc){
     newRequestOption.errorholderSrc = taskData.errorholderSrc as PixelMap | Resource | undefined;

library/src/main/ets/components/imageknife/utils/DefaultJobQueue.ets

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the 'License');
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an 'AS IS' BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { IJobQueue, RequestInfo } from './IJobQueue';
+import Queue from '@ohos.util.Queue';
+import taskpool from '@ohos.taskpool';
+
+export class DefaultJobQueue implements IJobQueue {
+  highQueue: Queue<RequestInfo> = new Queue();
+  normalQueue: Queue<RequestInfo> = new Queue();
+  lowQueue: Queue<RequestInfo> = new Queue();
+
+  getQueueLength(): number {
+    return this.highQueue.length + this.normalQueue.length + this.lowQueue.length;
+  }
+
+  add(requestInfo: RequestInfo): void {
+    if (requestInfo.request.priority === undefined || requestInfo.request.priority === taskpool.Priority.MEDIUM) {
+      this.normalQueue.add(requestInfo);
+    } else if (requestInfo.request.priority === taskpool.Priority.HIGH) {
+      this.highQueue.add(requestInfo);
+    } else {
+      this.lowQueue.add(requestInfo);
+    }
+  }
+
+  pop(): RequestInfo | undefined {
+    if (this.highQueue.length > 0) {
+      return this.highQueue.pop();
+    } else if (this.normalQueue.length > 0) {
+      return this.normalQueue.pop();
+    } else {
+      return this.lowQueue.pop();
+    }
+  }
+}

library/src/main/ets/components/imageknife/utils/IJobQueue.ets

@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the 'License');
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an 'AS IS' BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { RequestOption } from '../../imageknife/RequestOption';
+
+export interface IJobQueue {
+
+  /**
+   * 获取队列长度
+   * @returns
+   */
+  getQueueLength(): number;
+
+  /**
+   * 往队列中添加元素
+   * @param RequestObject
+   */
+  add(requestInfo: RequestInfo): void;
+
+  /**
+   * 移除并返回队列头部的元素
+   * @returns
+   */
+  pop(): RequestInfo | undefined;
+}
+
+export interface RequestInfo {
+  request: RequestOption;
+  usageType: string;
+}