1 package IPC::MorseSignals::TestSuite;
7 use POSIX qw/SIGINT SIGTERM SIGKILL SIGHUP EXIT_FAILURE/;
9 use IPC::MorseSignals qw/msend mrecv mreset/;
11 use base qw/Exporter/;
13 our @EXPORT_OK = qw/try speed init cleanup/;
15 my ($lives, $pid, $rdr);
19 die 'forked too many times' if $lives < 0;
20 pipe $rdr, my $wtr or die "pipe() failed: $!";
23 die "fork() failed: $!";
26 close $rdr or die "close() failed: $!";
29 $SIG{__WARN__} = sub { print $wtr "!warn\n"; };
30 my $rcv = mrecv %SIG, cb => sub {
31 my $is_utf8 = Encode::is_utf8($_[1]);
32 binmode $wtr, ':utf8' if $is_utf8;
33 print $wtr $_[0], ':', $_[1], "\n";
34 binmode $wtr, ':crlf' if $is_utf8;
37 $SIG{ALRM} = sub { alarm 1; kill SIGHUP => $ppid };
39 $SIG{HUP} = sub { alarm 0; mreset $rcv }; # We can reset the alarm here.
44 local $SIG{HUP} = sub { $ready = 1 };
46 close $wtr or die "close() failed: $!";
47 my $oldfh = select $rdr;
54 close $rdr or die "close() falied: $!";
74 sub cleanup { slaughter }
77 my ($msg, $sign) = @_;
82 binmode $rdr, ((Encode::is_utf8 $msg) ? ':utf8' : ':crlf');
83 while (!$ok && (($speed /= 2) >= 1)) {
86 local $SIG{ALRM} = sub { die 'timeout' };
87 local $SIG{__WARN__} = sub { alarm 0; die 'do not want warnings' };
88 my $a = (int(100 * (3 * length $msg) / $speed) || 1);
92 msend $msg => $pid, speed => $speed, sign => $sign;
96 if (!defined $r) { # Something bad happened, respawn
101 if ($r eq ((($sign) ? $$ : 0) . ':' . $msg)) {
108 return ($ok) ? $speed : 0;
112 my ($l, $n, $diag, $res) = @_;
115 my @alpha = ('a' .. 'z');
116 my $msg = join '', map { $alpha[rand @alpha] } 1 .. $l;
117 my $desc_base = "$l bytes sent $n time" . ('s' x ($n != 1));
118 while (($ok < $n) && (($speed /= 2) >= 1)) {
120 my $desc = "$desc_base at $speed bits/s";
121 $diag->("try $desc...");
126 local $SIG{ALRM} = sub { die 'timeout' };
127 local $SIG{__WARN__} = sub { alarm 0; die 'do not want warnings' };
128 my $a = (int(100 * (3 * $l) / $speed) || 1);
132 msend $msg => $pid, speed => $speed, sign => 0;
136 if (!defined $r) { # Something bad happened, respawn
142 if ($r eq '0:' . $msg) {
151 push @$res, $desc_base . (($speed) ? ' at ' . $speed . ' bits/s' : ' failed');