+
+# work queues
+pipe(my ($ra, $wa)) or BAIL_OUT $!;
+pipe(my ($rb, $wb)) or BAIL_OUT $!;
+pipe(my ($rc, $wc)) or BAIL_OUT $!;
+open my $warn, '+>', undef or BAIL_OUT;
+$warn->autoflush(0);
+local $SIG{__WARN__} = sub { print $warn "PID:$$ ", @_ };
+my @ppids;
+open my $agpl, '<', 'COPYING' or BAIL_OUT "AGPL-3 missing: $!";
+my $big = do { local $/; <$agpl> } // BAIL_OUT "read: $!";
+close $agpl or BAIL_OUT "close: $!";
+
+for my $t ('local', 'worker', 'worker again') {
+ $ipc->wq_io_do('test_write_each_fd', [ $wa, $wb, $wc ], 'hello world');
+ my $i = 0;
+ for my $fh ($ra, $rb, $rc) {
+ my $buf = readline($fh);
+ is(chop($buf), "\n", "trailing CR ($t)");
+ like($buf, qr/\Ai=$i \d+ hello world\z/, "got expected ($t)");
+ $i++;
+ }
+ $ipc->wq_io_do('test_die', [ $wa, $wb, $wc ]);
+ $ipc->wq_io_do('test_sha', [ $wa, $wb ], 'hello world');
+ is(readline($rb), sha1_hex('hello world')."\n", "SHA small ($t)");
+ {
+ my $bigger = $big x 10; # to hit EMSGSIZE
+ $ipc->wq_io_do('test_sha', [ $wa, $wb ], $bigger);
+ my $exp = sha1_hex($bigger)."\n";
+ is(readline($rb), $exp, "SHA big for EMSGSIZE ($t)");
+
+ # to hit the WQWorker recv_and_run length
+ substr($bigger, my $MY_MAX_ARG_STRLEN = 4096 * 33, -1) = '';
+ $ipc->wq_io_do('test_sha', [ $wa, $wb ], $bigger);
+ $exp = sha1_hex($bigger)."\n";
+ is(readline($rb), $exp, "SHA WQWorker limit ($t)");
+ }
+ my $ppid = $ipc->wq_workers_start('wq', 1);
+ push(@ppids, $ppid);
+}
+
+# wq_io_do works across fork (siblings can feed)
+SKIP: {
+ skip 'Socket::MsgHdr or Inline::C missing', 3 if !$ppids[0];
+ is_deeply(\@ppids, [$$, undef, undef],
+ 'parent pid returned in wq_workers_start');
+ my $pid = fork // BAIL_OUT $!;
+ if ($pid == 0) {
+ use POSIX qw(_exit);
+ $ipc->wq_io_do('test_write_each_fd', [ $wa, $wb, $wc ], $$);
+ _exit(0);
+ } else {
+ my $i = 0;
+ my ($wpid, @rest) = keys %{$ipc->{-wq_workers}};
+ is(scalar(@rest), 0, 'only one worker');
+ for my $fh ($ra, $rb, $rc) {
+ my $buf = readline($fh);
+ is(chop($buf), "\n", "trailing CR #$i");
+ like($buf, qr/^i=$i $wpid $pid\z/,
+ 'got expected from sibling');
+ $i++;
+ }
+ is(waitpid($pid, 0), $pid, 'waitpid complete');
+ is($?, 0, 'child wq producer exited');
+ }
+ my @ary = $ipc->wq_do('test_array');
+ is_deeply(\@ary, [ qw(test array) ], 'wq_do wantarray');
+ is(my $s = $ipc->wq_do('test_scalar'), 'scalar', 'defined wantarray');
+ my $exp = bless ['blessed'], 'PublicInbox::WTF';
+ my $ret = eval { $ipc->wq_do('test_die', $exp) };
+ is_deeply($@, $exp, 'die with blessed ref');
+}
+
+$ipc->wq_close;
+SKIP: {
+ skip 'Socket::MsgHdr or Inline::C missing', 11 if !$ppids[0];
+ seek($warn, 0, SEEK_SET) or BAIL_OUT;
+ my @warn = <$warn>;
+ is(scalar(@warn), 3, 'warned 3 times');
+ like($warn[0], qr/ wq_io_do: /, '1st warned from wq_do');
+ like($warn[1], qr/ wq_worker: /, '2nd warned from wq_worker');
+ is($warn[2], $warn[1], 'worker did not die');
+
+ $SIG{__WARN__} = 'DEFAULT';
+ is($ipc->wq_workers_start('wq', 2), $$, 'workers started again');
+ $ipc->wq_broadcast('test_append_pid', "$tmpdir/append_pid");
+ $ipc->wq_close;
+ open my $fh, '<', "$tmpdir/append_pid" or BAIL_OUT "open: $!";
+ chomp(my @pids = <$fh>);
+ my %pids = map { $_ => 1 } grep(/\A[0-9]+\z/, @pids);
+ is(scalar keys %pids, 2, 'broadcast hit both PIDs');
+}
+