Ruby Tracepoint - 将挂钩挂接到open3子进程

Question

我正在玩弄伟大的Tracepoint API，并且我在想是否可以将事件挂钩附加到使用popen3启动的ruby进程？

一个例子：

TracePoint.trace(:end) do |e| 
    # Here we do something like logging this event. 
end 


Open3.popen3(cmd) do |stdin, stdout, stderr, thread| 
    # cmd is a ruby cmd, and we want the tracepoint above to apply to it as well 
end 

任何想法？

Answer 1

没有解决方案popen3，但一个简单的exec伎俩。