#!perl -w
-# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
use strict;
use v5.10.1;
use Test::More;
use PublicInbox::TestCommon;
+use Fcntl qw(SEEK_SET);
require_ok 'PublicInbox::IPC';
state $once = eval <<'';
package PublicInbox::IPC;
sub test_undef { undef }
sub test_die { shift; die @_; 'unreachable' }
sub test_pid { $$ }
+sub test_write_each_fd {
+ my ($self, @args) = @_;
+ for my $fd (0..2) {
+ print { $self->{$fd} } "i=$fd $$ ", @args, "\n";
+ $self->{$fd}->flush;
+ }
+}
1;
my $ipc = bless {}, 'PublicInbox::IPC';
my @t = qw(array scalar scalarref undef);
my $test = sub {
my $x = shift;
+ my @res;
for my $type (@t) {
my $m = "test_$type";
my @ret = $ipc->ipc_do($m);
$ipc->ipc_do($m);
+ $ipc->ipc_async($m, [], sub { push @res, \@_ }, \$m);
+
my $ret = $ipc->ipc_do($m);
my $exp = $ipc->$m;
is_deeply($ret, $exp, "!wantarray $m $x");
+
+ is_deeply(\@res, [ [ \$m, \@exp ] ], "async $m $x");
+ @res = ();
}
+ $ipc->ipc_async_wait(-1);
+ is_deeply(\@res, [], 'no leftover results');
+ $ipc->ipc_async('test_die', ['die test'],
+ sub { push @res, \@_ }, 'die arg');
+ $ipc->ipc_async_wait(1);
+ is(scalar(@res), 1, 'only one result');
+ is(scalar(@{$res[0]}), 2, 'result has 2-element array');
+ is($res[0]->[0], 'die arg', 'got async die arg '.$x);
+ is(ref($res[0]->[1]), 'PublicInbox::IPC::Die',
+ "exception type $x");
+ {
+ my $nr = PublicInbox::IPC::PIPE_BUF();
+ my $count = 0;
+ my $cb = sub { ++$count };
+ $ipc->ipc_async('test_undef', [], $cb) for (1..$nr);
+ $ipc->ipc_async_wait(-1);
+ is($count, $nr, "$x async runs w/o deadlock");
+ }
+
my $ret = eval { $ipc->test_die('phail') };
my $exp = $@;
$ret = eval { $ipc->ipc_do('test_die', 'phail') };
is((values %lines)[0], 2, '2 hits on same line number');
is($err, $exp, "$x die matches");
is($ret, undef, "$x die did not return");
+
+ eval { $ipc->test_die(['arrayref']) };
+ $exp = $@;
+ $ret = eval { $ipc->ipc_do('test_die', ['arrayref']) };
+ $err = $@;
+ is_deeply($err, $exp, 'die with unblessed ref');
+ is(ref($err), 'ARRAY', 'got an array ref');
+
+ $exp = bless ['blessed'], 'PublicInbox::WTF';
+ $ret = eval { $ipc->ipc_do('test_die', $exp) };
+ $err = $@;
+ is_deeply($err, $exp, 'die with blessed ref');
+ is(ref($err), 'PublicInbox::WTF', 'got blessed ref');
};
$test->('local');
ok(!kill(0, $pid) && $!{ESRCH}, 'worker stopped');
}
$ipc->ipc_worker_stop; # idempotent
+
+# work queues
+$ipc->{wq_open_modes} = [qw( >&= >&= >&= )];
+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:$$ ", @_ };
+my @ppids;
+for my $t ('local', 'worker', 'worker again') {
+ $ipc->wq_do('test_write_each_fd', $wa, $wb, $wc, 'hello world');
+ my $i = 0;
+ for my $fh ($ra, $rb, $rc) {
+ my $buf = readline($fh);
+ is(chop($buf), "\n", "trailing CR ($t)");
+ like($buf, qr/\Ai=$i \d+ hello world\z/, "got expected ($t)");
+ $i++;
+ }
+ $ipc->wq_do('test_die', $wa, $wb, $wc);
+ my $ppid = $ipc->wq_workers_start('wq', 1);
+ push(@ppids, $ppid);
+}
+
+# wq_do works across fork (siblings can feed)
+SKIP: {
+ skip 'Socket::MsgHdr, IO::FDPass, Inline::C missing', 7 if !$ppids[0];
+ is_deeply(\@ppids, [$$, undef, undef],
+ 'parent pid returned in wq_workers_start');
+ my $pid = fork // BAIL_OUT $!;
+ if ($pid == 0) {
+ use POSIX qw(_exit);
+ $ipc->wq_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');
+ }
+}
+
+$ipc->wq_close;
+seek($warn, 0, SEEK_SET) or BAIL_OUT;
+my @warn = <$warn>;
+is(scalar(@warn), 3, 'warned 3 times');
+like($warn[0], qr/ wq_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');
+
done_testing;