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}
$s .= ""include $abs_path;"";
}
return $s;
}
sub forward_signal {
my $signame = shift;
if ($signame eq 'HUP') {
$signame = 'QUIT';
}
if ($child_pid) {
#warn ""killing $child_pid with $signame ...\n"";
my $loaded_time_hires;
if ($signame eq 'INT' || $signame eq 'PIPE') {
# Note: we use eval here just because explicit use of %!
# would trigger auto-loading of the Errno module, which
# hurts script startup time.
eval q#
if (kill(QUIT => $child_pid) == 0) {
if (not $!{ESRCH}) {
die ""failed to send QUIT signal to process "",
""$child_pid: $!"";
}
}
#;
if ($@) {
die ""failed to eval: $@"";
}
require Time::HiRes;
$loaded_time_hires = 1;
Time::HiRes::sleep(0.1);
kill KILL => $child_pid;
exit($signame eq 'INT' ? 130 : 141);
} else {
# Note: we use eval here just because explicit use of %!
# would trigger auto-loading of the Errno module, which
# hurts script startup time.
eval q#
if (kill($signame => $child_pid) == 0) {
if (not $!{ESRCH}) {
die ""failed to send $signame signal to process "",
""$child_pid: $!"";
}
}
#;
if ($@) {
die ""failed to eval: $@"";
}
}
if (!$loaded_time_hires) {
require Time::HiRes;
}
my $nap = 0.001;
my $total_nap = 0;
while ($total_nap < 0.1) {
#warn ""sleeping $nap"";
$nap *= 1.5;
$total_nap += $nap;
Time::HiRes::sleep($nap);
# Note: we use eval here just because explicit use of %!
# would trigger auto-loading of the Errno module, which
# hurts script startup time.
my ($ret, $echild);
eval qq#
\$ret = waitpid \$child_pid, $WNOHANG;
\$echild = \$!{ECHILD};
#;
if ($@) {
die ""failed to eval: $@"";
}
next if $ret == 0;
exit 0 if $echild;
if ($ret < 0) {
die ""failed to wait on child process $child_pid: $!"";
}
my $rc = 0;
if ($signame eq 'INT') {
$rc = 130;
} elsif ($signame eq 'TERM') {
$rc = 143;
}