Hi Marshall

. . . a coderef to a subroutine that causes a waitpid loop. . .

Just something to think about! I recently (past year) removed all uses of waitpid loops, since on some recent versions of AIX/Unix/Linux, especially on multi-core computers, if the child had been reaped by another core, the SIG handler hanged forever. I replace the code in the parent with: 

if ( kill 0 => $child )
{   $children++;
    ...
}
else
{   my $ret = &make_child( );
    ...
}

[download]

It works, but like you I prefer the sub. I don't know if this behavior is a bug, or it its intentional. The problem doesn't seem to happen it the child exists, only when it has been reaped in a previous call.

I commented out the previous use, may need it again :-)

Thank you

"Well done is better than well said." - Benjamin Franklin

In reply to Re^6: Best way to kill a child process by flexvault
in thread Best way to kill a child process by doylebobs

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