问题描述
我们使用带有自己开发的dll的js-ctypes从html页面中的图像设备获取图片.(计时器->从设备获取图片-> bmp 300kb base64-> html)每0.2秒Addon调用映像设备一次，并且每次Addon正常工作的浏览器在0.5秒后冻结. (英特尔i5、16GB DDR)
We use js-ctypes with own developed dll to get picture from image device in html page.(timer-> get picture from device -> bmp 300kb base64 -> html )Every 0.2 sec Addon calling image device and every time addon working browser freezing at 0.5 sec. (intel i5, 16gb ddr)
我不知道如何在不冻结浏览器的情况下使用js-ctypes.做出异步响应，我认为使用js-ctypes并不酷.也许需要使用端口，而无需等待图像设备的响应?
I don't know how to use js-ctypes without freezing browser.Make async response i think not cool with js-ctypes.Maybe need using ports without waiting response from image device?
推荐答案
异步使用js-ctypes的最简单方法是 ChromeWorker .您在其中拥有全局ctypes对象以使用js-ctypes-并且执行在单独的线程上运行，因此您不必担心会阻塞浏览器.如果以后需要在主线程中使用数据，则可以发送消息就像在通常的网络工作者中一样.
The simplest way to use js-ctypes asynchronously is ChromeWorker. You have the global ctypes object there to use js-ctypes - and the execution runs on a separate thread so you don't have to worry about blocking the browser. If you need the data in the main thread later, you can send a message like in a usual web worker.
注意:如果您使用的是附加SDK，那么您会发现ChromeWorker没有公开在您的模块中.有一个简单的解决方法.
Note: If you are using the Add-on SDK then you will notice that ChromeWorker isn't exposed in your modules. There is an easy work-around for that.
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