Re: Print plot error

[Rob Mahurin]

On Aug 24, 2009, at 9:14 PM, Ben Abbott wrote:
> Sorry for my lack ... but will waitpid kill non-zombie children?
>
> There is an active gnuplot for each figure window. Would wiatid  
> terminate those children as well?

No, see the man page for the wait4() and waitpid() system calls.

waitpid(-1,0) will hang if there are children still running, but
waitpid(-1,WNOHANG) will just return zero.

If there are not children running, waitpid(-1,anything) should just  
return -1.

Don't believe me, test it.

Rob

--
Rob Mahurin
University of Manitoba, Dept. of Physics & Astronomy
at:     Oak Ridge National Laboratory   865 207 2594
        Oak Ridge, Tennessee            address@hidden