From: "baq s." <lists@...>
Date: 2013-01-25T02:04:38+09:00
Subject: Processes and forks

Hi all, I have a quick problem that I am sure someone here has an
elegant solution for.

I have a ruby script that runs in a loop an external linux process via
gdb:

...
until checks.empty? do
...
    begin
        Timeout::timeout(5) {
            system("/usr/bin/gdb --args #{proc} 2>/dev/null")}
        rescue Timeout::Error
    end
...
end
...

What I am trying to do is have gdb terminate after 5 seconds of activity
and move on to debugging the next task. What I am finding however is
that after 5 seconds, my ruby script quits and returns to the command
line and the gdb and debugged processes are left running in the
background.

I can then hit fg and it will start again but this is not what I want; I
want my script to execute gdb and launch it to debug a program, after 5
seconds to terminate debugging and move on to the next binary to debug.

much regards

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