How to setitimer for the child process in golang?

[GaoPeng(高朋)]

In C , I can use setitimer after fork, and signal SIGALARM Periodically.But In Go I have no idea about how to use syscall setitimer to child process. Is there any way to specify the pid of setitimer after os.StartProcess?

[Ian Lance Taylor]

What do you really want to do?

Two other ways to approach this, depending on your goals, are
time.NewTicker and the runtime/pprof package.

Ian

[GaoPeng(高朋)]

I want use ptrace to trace a untrusted code to limit it's resource like CPU time , memory and syscall. So I want tracee process signal SIGALARM in order to make tracer stop it and have a check for the resource usage. The methods you give applys for the current process. 

[GaoPeng(高朋)]

http://play.golang.org/p/byg5BrdrEJ 

It's piece of my code , I  want to add below SIGALARM below line 83.

On Monday, June 30, 2014 11:07:30 PM UTC+8, Ian Lance Taylor wrote:

[GaoPeng(高朋)]

Oh. I got the idea.

Just like:

ticker := time.Newtikcer(dur)

 for _ = range ticker.C{

   proc.Signal(os.SIgnal(syscall.SIGALARM))
}

thx!