Question

我使用创建了一个Web worker，但是找不到从Worker函数内部获取Worker实例的方法。

从函数内部，如果我使用“ this”或“ self”，则只能获得“ DedicatedWorkerGlobalScope”对象。

请查看下面的代码片段以了解问题所在：

/******** below is main.html file *********/
var mywebworker1 = new Worker('mywebworker1.js');
    
// register event listener to receive data from worker
mywebworker1.addEventListener('message', function(e) {
  // at this point, 'this' == 'Worker' instance
  
  // ... other code
});


/******** below is inside mywebworker1.js file *********/
self.addEventListener('message', function(e) {
  // at this point, 'this' == 'DedicatedWorkerGlobalScope' object
  
  // PROBLEM: How to get 'Worker' instance in here ??
  
  // .. other code
}, false);

我试图在postMessage中传递Worker实例，例如：

// send command to start counting
mywebworker1.postMessage({"action": "count", "from" : 7, "to": 22, "instance": mywebworker1});

// GOT ERROR message = Uncaught DOMException: Failed to execute 'postMessage' on 'Worker': Worker object could not be cloned.

预先感谢您的帮助〜

如何从内部获取WebWorker实例？

0 个答案: