1 # Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # Ensure buffering behavior in -httpd doesn't cause runaway memory use
9 use File::Temp qw/tempdir/;
13 my $git_dir = $ENV{GIANT_GIT_DIR};
14 plan 'skip_all' => 'GIANT_GIT_DIR not defined' unless $git_dir;
15 foreach my $mod (qw(BSD::Resource
16 Plack::Util Plack::Builder
17 HTTP::Date HTTP::Status Net::HTTP)) {
19 plan skip_all => "$mod missing for git-http-backend.t" if $@;
21 require './t/common.perl';
22 my $psgi = "./t/git-http-backend.psgi";
23 my $tmpdir = tempdir('pi-git-http-backend-XXXXXX', TMPDIR => 1, CLEANUP => 1);
24 my $err = "$tmpdir/stderr.log";
25 my $out = "$tmpdir/stdout.log";
26 my $httpd = 'blib/script/public-inbox-httpd';
27 my $sock = tcp_server();
28 my $host = $sock->sockhost;
29 my $port = $sock->sockport;
31 END { kill 'TERM', $pid if defined $pid };
33 my $get_maxrss = sub {
34 my $http = Net::HTTP->new(Host => "$host:$port");
35 ok($http, 'Net::HTTP object created for maxrss');
36 $http->write_request(GET => '/');
37 my ($code, $mess, %h) = $http->read_response_headers;
38 is($code, 200, 'success reading maxrss');
39 my $n = $http->read_entity_body(my $buf, 256);
40 ok(defined $n, 'read response body');
41 like($buf, qr/\A\d+\n\z/, 'got memory response');
42 ok(int($buf) > 0, 'got non-zero memory response');
47 ok($sock, 'sock created');
48 my $cmd = [ $httpd, "--stdout=$out", "--stderr=$err", $psgi ];
49 ok(defined($pid = spawn_listener(undef, $cmd, [$sock])),
50 'forked httpd process successfully');
52 my $mem_a = $get_maxrss->();
57 my $glob = "$git_dir/objects/pack/pack-*.pack";
58 foreach my $f (glob($glob)) {
65 skip "no packs found in $git_dir" unless defined $pack;
66 if ($pack !~ m!(/objects/pack/pack-[a-f0-9]{40}.pack)\z!) {
67 skip "bad pack name: $pack";
70 my $http = Net::HTTP->new(Host => "$host:$port");
71 ok($http, 'Net::HTTP object created');
72 $http->write_request(GET => $url);
73 my ($code, $mess, %h) = $http->read_response_headers;
74 is(200, $code, 'got 200 success for pack');
75 is($max, $h{'Content-Length'}, 'got expected Content-Length for pack');
77 # no $http->read_entity_body, here, since we want to force buffering
78 foreach my $i (1..3) {
80 my $diff = $get_maxrss->() - $mem_a;
81 note "${diff}K memory increase after $i seconds";
82 ok($diff < 1024, 'no bloating caused by slow dumb client');
90 exec qw(git clone -q --mirror), "http://$host:$port/",
92 die "Failed start git clone: $!\n";
94 select(undef, undef, undef, 0.1);
95 foreach my $i (1..10) {
96 is(1, kill('STOP', -$c), 'signaled clone STOP');
98 ok(kill('CONT', -$c), 'continued clone');
99 my $diff = $get_maxrss->() - $mem_a;
100 note "${diff}K memory increase after $i seconds";
101 ok($diff < 2048, 'no bloating caused by slow smart client');
103 ok(kill('CONT', -$c), 'continued clone');
104 is($c, waitpid($c, 0), 'reaped wayward slow clone');
105 is($?, 0, 'clone did not error out');
106 note 'clone done, fsck-ing clone result...';
107 is(0, system("git", "--git-dir=$tmpdir/mirror.git",
108 qw(fsck --no-progress)),
109 'fsck did not report corruption');
111 my $diff = $get_maxrss->() - $mem_a;
112 note "${diff}K memory increase after smart clone";
113 ok($diff < 2048, 'no bloating caused by slow smart client');
117 ok(kill('TERM', $pid), 'killed httpd');