问题
I do not have much knowledge about javascript. I have written in C++ a shared library that does certain things in a daemon thread. I needed this to be invoked from javascript. By using SWIG I've successfully able to generate a wrapper and compile my code along with it into .node module using node-gyp (wrote binding.gyp for it too). Now i can drop to node prompt and do something like:
> var a = require("./module_name")
> a.SomeCppFunction("SomeString")
and wonderfully invoke the cpp functions, start a detached thread there and return the control back to javascript. However I want to notify the javascript from the detached cpp thread about stuffs. I tried registering javascript functions by collecting function() {} signature types in void(*fp)() etc., to call them back later from c++, but that didn't work. Is there anyway to be able to achieve this ie., register javascript functions (or something else) as callback in the cpp code ?
来源：https://stackoverflow.com/questions/28502166/notifying-javascript-from-a-node-js-native-addon-c