"sudo!" => \$sudo,
);
+sub test_pipe_read {
+ my $data = '';
+ sysread STDIN, $data, 4096 and syswrite STDOUT, "recvd\n" until $data =~ /done/;
+ syswrite STDOUT, 'done';
+}
+
+sub test_pipe_write {
+ my ($rin, $rout);
+ vec($rin, fileno STDIN, 1) = 1;
+ syswrite STDOUT, "data\n" until select $rout = $rin, undef, undef, 0.05;
+ syswrite STDOUT, 'done';
+ my $data = '';
+ sysread STDIN, $data, 4096 until $data =~ /done/;
+}
+
+sub test_pipes {
+ $ARGV[0] =~ /prog/ ? test_pipe_read : test_pipe_write
+}
+
my $killuser = $ENV{GRUNTMASTER_KILL_USER};
my @sudo;
@sudo = (shellwords ($ENV{GRUNTMASTER_SUDO}), '--') if $ENV{GRUNTMASTER_SUDO} && $sudo;
my $ret = fork // die 'Cannot fork';
if ($ret) {
- my $tle;
+ my ($tle, $child_ready);
+ local $SIG{USR1} = sub { $child_ready = 1 };
+ sleep 3; # Wait for ready signal (SIGUSR1)
+ unless ($child_ready) {
+ kill KILL => $ret;
+ exit !say ERR, "\nNo response from gruntmaster-exec child";
+ }
local $SIG{ALRM} = sub {
if ($killuser) {
system @sudo, 'pkill', '-KILL', '-u', $killuser;
my $signame = sig_name $sig;
exit !say TLE, "\nTime Limit Exceeded" if $tle;
exit !say OLE, "\nOutput Limit Exceeded" if $sig && $signame eq 'XFSZ';
- exit !say DIED, "\nCrash (SIG$signame)" if $sig && ($signame ne 'PIPE' || $ARGV[0] =~ /prog/);
+ exit !say DIED, "\nCrash (SIG$signame)" if $sig && ($signame ne 'PIPE' || $ARGV[0] !~ /prog/);
exit !say NZX, "\nNon-zero exit status: " . ($? >> 8) if $? >> 8;
exit !say AC, "\nAll OK";
} else {
POSIX::close $oldfd or die $!;
}
}
+ test_pipes if grep /tty|fifo/, @fds;
my $nproc = $killuser ? 15 : 1;
my $debug = $ENV{TEST_VERBOSE};
%ENV = (ONLINE_JUDGE => 1, PATH => $ENV{PATH}, HOME => $ENV{HOME});
print $adj 900;
close $adj;
unshift @ARGV, @sudo;
+ kill USR1 => getppid; # Tell parent process that we're ready
say STDERR "Executing: ", join ' ', map { "'$_'" } @ARGV if $debug;
exec @ARGV;
}