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how to refine the code to avoid using fork on windows?

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  how to refine the code to avoid using fork on windows? Ethan Huo <firewall888@hotmail.com> - 2011-03-31 09:18 -0500
    Re: how to refine the code to avoid using fork on windows? Tony Arcieri <tony.arcieri@medioh.com> - 2011-03-31 22:13 -0500
    Re: how to refine the code to avoid using fork on windows? Ethan Huo <firewall888@hotmail.com> - 2011-04-02 08:50 -0500

#2052 — how to refine the code to avoid using fork on windows?

here is the thing, i need to move a previous ruby program from Linux to
Windows, but Win doesn't support fork, how can i refine the code to make
it work on Win?
i googled a lot but still didn't get it, can anyone help me here?i paste
the code below:

def exec_cmd(cmd, toen=false, tmout=3600)
    return false if !$AveSubPID.nil?
    ret = fork
    if ret.nil? then
        exec "#{cmd}"
    end
    $AveSubPID = ret
    succ=true
    if (toen) then
        begin
            timeout(tmout) {
                Process.wait(ret)
                $AveSubPID = nil
                succ=$?.success?
                $AveErrno = $?.exitstatus
            }
        rescue Timeout::Error => e
            echo "(timeout) "
            kill_sub_process(ret)
            $AveSubPID = nil
            succ = false
            $AveErrno = $?.exitstatus
        end
    else
        Process.wait(ret)
        $AveSubPID = nil
        succ=$?.success?
        $AveErrno = $?.exitstatus
    end
    return succ
end

-- 
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#2080

[Note:  parts of this message were removed to make it a legal post.]

Check out the childprocess gem: https://github.com/jarib/childprocess

On Thu, Mar 31, 2011 at 8:18 AM, Ethan Huo <firewall888@hotmail.com> wrote:

> here is the thing, i need to move a previous ruby program from Linux to
> Windows, but Win doesn't support fork, how can i refine the code to make
> it work on Win?
> i googled a lot but still didn't get it, can anyone help me here?i paste
> the code below:
>
> def exec_cmd(cmd, toen=false, tmout=3600)
>    return false if !$AveSubPID.nil?
>    ret = fork
>    if ret.nil? then
>        exec "#{cmd}"
>    end
>    $AveSubPID = ret
>    succ=true
>    if (toen) then
>        begin
>            timeout(tmout) {
>                Process.wait(ret)
>                $AveSubPID = nil
>                succ=$?.success?
>                $AveErrno = $?.exitstatus
>            }
>        rescue Timeout::Error => e
>            echo "(timeout) "
>            kill_sub_process(ret)
>            $AveSubPID = nil
>            succ = false
>            $AveErrno = $?.exitstatus
>        end
>    else
>        Process.wait(ret)
>        $AveSubPID = nil
>        succ=$?.success?
>        $AveErrno = $?.exitstatus
>    end
>    return succ
> end
>
> --
> Posted via http://www.ruby-forum.com/.
>
>


-- 
Tony Arcieri
Medioh! Kudelski

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#2154

i tried using win32-process to emulate #fork, although the code need no 
changes, the behavior of win32-process' fork is different from Linux 
fork, finally i used #spawn, and it seems work well

-- 
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