job任务优化

electron/jobs/example/timer.js

@@ -23,13 +23,14 @@ class TimerJob extends Job {
     Log.info("[child-process] TimerJob params: ", this.params);
 
     // 计时器任务
-    let eventName = 'job-timer-progress';
+    
     let number = 0;
     let jobId = this.params.jobId;
+    let eventName = 'job-timer-progress-' + jobId;
     let timer = setInterval(function() {
       Hello.welcome();
 
-      childMessage.send(eventName, {jobId, number});
+      childMessage.send(eventName, {jobId, number, end: false});
       number++;
     }, 1000);
 
@@ -39,7 +40,7 @@ class TimerJob extends Job {
       clearInterval(timer);
 
       // 任务结束，重置前端显示
-      childMessage.send(eventName, {jobId, number:0, pid:0});
+      childMessage.send(eventName, {jobId, number:0, pid:0, end: true});
 
       // 如果是childJob任务，必须调用 Ps.exit() 方法，让进程退出，否则会常驻内存
       // 如果是childPoolJob任务，常驻内存，等待下一个业务

electron/service/framework.js

@@ -68,8 +68,9 @@ class FrameworkService extends Service {
     const channel = 'controller.framework.timerJobProgress';
     if (action == 'create') {
       // 执行任务及监听进度
+      let eventName = 'job-timer-progress-' + jobId;
       const timerTask = this.myJob.exec('./jobs/example/timer', {jobId});
-      timerTask.emitter.on('job-timer-progress', (data) => {
+      timerTask.emitter.on(eventName, (data) => {
         Log.info('[main-process] timerTask, from TimerJob data:', data);
         // 发送数据到渲染进程
         event.sender.send(`${channel}`, data)
@@ -77,7 +78,7 @@ class FrameworkService extends Service {
     
       // 执行任务及监听进度 异步
       // myjob.execPromise('./jobs/example/timer', {jobId}).then(task => {
-      //   task.emitter.on('job-timer-progress', (data) => {
+      //   task.emitter.on(eventName, (data) => {
       //     Log.info('[main-process] timerTask, from TimerJob data:', data);
       //     // 发送数据到渲染进程
       //     event.sender.send(`${channel}`, data)
@@ -115,12 +116,22 @@ class FrameworkService extends Service {
     if (action == 'run') {
       // 异步-执行任务及监听进度
       this.myJobPool.runPromise('./jobs/example/timer', {jobId}).then(task => {
-        task.emitter.on('job-timer-progress', (data) => {
+
+        // 监听器名称唯一，否则会出现重复监听。
+        // 任务完成时，需要移除监听器，防止内存泄漏
+        let eventName = 'job-timer-progress-' + jobId;
+        task.emitter.on(eventName, (data) => {
           Log.info('[main-process] [ChildPoolJob] timerTask, from TimerJob data:', data);
   
           // 发送数据到渲染进程
           event.sender.send(`${channel}`, data)
-        })
+
+          // 如果收到任务完成的消息，移除监听器
+          if (data.end) {
+            task.emitter.removeAllListeners(eventName);
+          }
+        });
+
         res.pid = task.pid; 
       });
     }

frontend/src/views/framework/jobs/Index.vue

@@ -31,30 +31,44 @@
       <p></p>      
       <a-space>
         <a-button @click="runJobByPool(3, 'run')">执行任务3</a-button>
-        进度：{{ progress3 }} ， 进程pid：{{ progress3_pid }}
+        进度：{{ progress3 }} ，进程pid：{{ progress3_pid }}
       </a-space>
       <p></p>
       <a-space>
         <a-button @click="runJobByPool(4, 'run')">执行任务4</a-button>
-        进度：{{ progress4 }} ， 进程pid：{{ progress4_pid }}
-      </a-space>            
+        进度：{{ progress4 }} ，进程pid：{{ progress4_pid }}
+      </a-space> 
+      <p></p> 
+      <a-space>
+        <a-button @click="runJobByPool(5, 'run')">执行任务5</a-button>
+        进度：{{ progress5 }} ，进程pid：{{ progress5_pid }}
+      </a-space>
+      <p></p>
+      <a-space>
+        <a-button @click="runJobByPool(6, 'run')">执行任务6</a-button>
+        进度：{{ progress6 }} ，进程pid：{{ progress6_pid }}
+      </a-space>  
     </div>            
   </div>
 </template>
 <script>
-import { ipcApiRoute } from '@/api/main'
+import { ipcApiRoute } from '@/api/main';
 export default {
   data() {
     return {
-      progress1: 0,
-      progress1_pid: 0,
-      progress2: 0,
-      progress2_pid: 0,
-      progress3: 0,
-      progress3_pid: 0,
-      progress4: 0,
-      progress4_pid: 0,
       processPids: '',
+      progress1: 0,
+      progress2: 0,
+      progress3: 0,
+      progress4: 0,
+      progress5: 0,
+      progress6: 0,
+      progress1_pid: 0,
+      progress2_pid: 0,
+      progress3_pid: 0,
+      progress4_pid: 0,
+      progress5_pid: 0,
+      progress6_pid: 0,
     }
   },
   mounted () {
@@ -85,6 +99,14 @@ export default {
             this.progress4 = result.number;  
             this.progress4_pid = result.pid == 0 ? result.pid : this.progress4_pid;          
             break;
+          case 5:
+            this.progress5 = result.number;
+            this.progress5_pid = result.pid == 0 ? result.pid : this.progress5_pid;
+            break;
+          case 6:
+            this.progress6 = result.number;  
+            this.progress6_pid = result.pid == 0 ? result.pid : this.progress6_pid;          
+            break;  
         }
       })
 
@@ -103,14 +125,10 @@ export default {
       this.$ipc.invoke(ipcApiRoute.someJob, params).then(data => {
         switch (data.jobId) {
           case 1:
-            if (data.action == 'create') {
-              this.progress1_pid = data.result.pid;
-            }
+            this.progress1_pid = data.result.pid;
             break;
           case 2:
-            if (data.action == 'create') {
-              this.progress2_pid = data.result.pid;
-            }
+            this.progress2_pid = data.result.pid;
             break;
         }
       })
@@ -130,15 +148,17 @@ export default {
       this.$ipc.invoke(ipcApiRoute.someJobByPool, params).then(data => {
         switch (data.jobId) {
           case 3:
-            if (data.action == 'run') {
-              this.progress3_pid = data.result.pid;
-            }
+            this.progress3_pid = data.result.pid;
             break;
           case 4:
-            if (data.action == 'run') {
-              this.progress4_pid = data.result.pid;
-            }
+            this.progress4_pid = data.result.pid;
             break;
+          case 5:
+            this.progress5_pid = data.result.pid;
+            break;
+          case 6:
+            this.progress6_pid = data.result.pid;
+            break;  
         }
       })
     },