-sub sigchld {
- my ($sig) = @_;
- my $flags = $sig ? POSIX::WNOHANG() : 0;
- while (waitpid(-1, $flags) > 0) {}
-}
+my %pids;
+my $sigchld = sub {
+ my $flags = scalar(@_) ? POSIX::WNOHANG() : 0;
+ for my $pid (keys %pids) {
+ delete($pids{$pid}) if waitpid($pid, $flags) == $pid;
+ }
+};
my ($fds, $argc, @argv) = @_;
my @old = (*STDIN{IO}, *STDOUT{IO}, *STDERR{IO});
my @rdr;
my ($fds, $argc, @argv) = @_;
my @old = (*STDIN{IO}, *STDOUT{IO}, *STDERR{IO});
my @rdr;
my $pid = fork // die "fork: $!";
if ($pid == 0) {
my %env = map { split(/=/, $_, 2) } splice(@argv, $argc);
my $pid = fork // die "fork: $!";
if ($pid == 0) {
my %env = map { split(/=/, $_, 2) } splice(@argv, $argc);