xref: /memcached-1.4.29/t/lib/MemcachedTest.pm (revision f5e4d26d) 
1package MemcachedTest;
2use strict;
3use IO::Socket::INET;
4use IO::Socket::UNIX;
5use Exporter 'import';
6use Carp qw(croak);
7use vars qw(@EXPORT);
8
9# Instead of doing the substitution with Autoconf, we assume that
10# cwd == builddir.
11use Cwd;
12my $builddir = getcwd;
13
14
15@EXPORT = qw(new_memcached sleep mem_get_is mem_gets mem_gets_is mem_stats free_port);
16
17sub sleep {
18    my $n = shift;
19    select undef, undef, undef, $n;
20}
21
22sub mem_stats {
23    my ($sock, $type) = @_;
24    $type = $type ? " $type" : "";
25    print $sock "stats$type\r\n";
26    my $stats = {};
27    while (<$sock>) {
28        last if /^(\.|END)/;
29        /^STAT (\S+) (\d+)/;
30        #print " slabs: $_";
31        $stats->{$1} = $2;
32    }
33    return $stats;
34}
35
36sub mem_get_is {
37    # works on single-line values only.  no newlines in value.
38    my ($sock_opts, $key, $val, $msg) = @_;
39    my $opts = ref $sock_opts eq "HASH" ? $sock_opts : {};
40    my $sock = ref $sock_opts eq "HASH" ? $opts->{sock} : $sock_opts;
41
42    my $expect_flags = $opts->{flags} || 0;
43    my $dval = defined $val ? "'$val'" : "<undef>";
44    $msg ||= "$key == $dval";
45
46    print $sock "get $key\r\n";
47    if (! defined $val) {
48        my $line = scalar <$sock>;
49        if ($line =~ /^VALUE/) {
50            $line .= scalar(<$sock>) . scalar(<$sock>);
51        }
52        Test::More::is($line, "END\r\n", $msg);
53    } else {
54        my $len = length($val);
55        my $body = scalar(<$sock>);
56        my $expected = "VALUE $key $expect_flags $len\r\n$val\r\nEND\r\n";
57        if (!$body || $body =~ /^END/) {
58            Test::More::is($body, $expected, $msg);
59            return;
60        }
61        $body .= scalar(<$sock>) . scalar(<$sock>);
62        Test::More::is($body, $expected, $msg);
63    }
64}
65
66sub mem_gets {
67  # works on single-line values only.  no newlines in value.
68  my ($sock_opts, $key) = @_;
69  my $opts = ref $sock_opts eq "HASH" ? $sock_opts : {};
70  my $sock = ref $sock_opts eq "HASH" ? $opts->{sock} : $sock_opts;
71  my $val;
72  my $expect_flags = $opts->{flags} || 0;
73
74  print $sock "gets $key\r\n";
75  my $response = <$sock>;
76  if ($response =~ /^END/) {
77    return "NOT_FOUND";
78  }
79  else
80  {
81    $response =~ /VALUE (.*) (\d+) (\d+) (\d+)/;
82    my $flags = $2;
83    my $len = $3;
84    my $identifier = $4;
85    read $sock, $val , $len;
86    # get the END
87    $_ = <$sock>;
88    $_ = <$sock>;
89
90    return ($identifier,$val);
91  }
92
93}
94sub mem_gets_is {
95    # works on single-line values only.  no newlines in value.
96    my ($sock_opts, $identifier, $key, $val, $msg) = @_;
97    my $opts = ref $sock_opts eq "HASH" ? $sock_opts : {};
98    my $sock = ref $sock_opts eq "HASH" ? $opts->{sock} : $sock_opts;
99
100    my $expect_flags = $opts->{flags} || 0;
101    my $dval = defined $val ? "'$val'" : "<undef>";
102    $msg ||= "$key == $dval";
103
104    print $sock "gets $key\r\n";
105    if (! defined $val) {
106        my $line = scalar <$sock>;
107        if ($line =~ /^VALUE/) {
108            $line .= scalar(<$sock>) . scalar(<$sock>);
109        }
110        Test::More::is($line, "END\r\n", $msg);
111    } else {
112        my $len = length($val);
113        my $body = scalar(<$sock>);
114        my $expected = "VALUE $key $expect_flags $len $identifier\r\n$val\r\nEND\r\n";
115        if (!$body || $body =~ /^END/) {
116            Test::More::is($body, $expected, $msg);
117            return;
118        }
119        $body .= scalar(<$sock>) . scalar(<$sock>);
120        Test::More::is($body, $expected, $msg);
121    }
122}
123
124sub free_port {
125    my $type = shift || "tcp";
126    my $sock;
127    my $port;
128    while (!$sock) {
129        $port = int(rand(20000)) + 30000;
130        $sock = IO::Socket::INET->new(LocalAddr => '127.0.0.1',
131                                      LocalPort => $port,
132                                      Proto     => $type,
133                                      ReuseAddr => 1);
134    }
135    return $port;
136}
137
138sub supports_udp {
139    my $output = `$builddir/memcached-debug -h`;
140    return 0 if $output =~ /^memcached 1\.1\./;
141    return 1;
142}
143
144sub new_memcached {
145    my ($args, $passed_port) = @_;
146    my $port = $passed_port || free_port();
147    my $udpport = free_port("udp");
148    $args .= " -p $port";
149    if (supports_udp()) {
150        $args .= " -U $udpport";
151    }
152    if ($< == 0) {
153        $args .= " -u root";
154    }
155    my $childpid = fork();
156
157    my $exe = "$builddir/memcached-debug";
158    croak("memcached binary doesn't exist.  Haven't run 'make' ?\n") unless -e $exe;
159    croak("memcached binary not executable\n") unless -x _;
160
161    unless ($childpid) {
162        exec "$exe $args";
163        exit; # never gets here.
164    }
165
166    # unix domain sockets
167    if ($args =~ /-s (\S+)/) {
168        sleep 1;
169	my $filename = $1;
170	my $conn = IO::Socket::UNIX->new(Peer => $filename) ||
171	    croak("Failed to connect to unix domain socket: $! '$filename'");
172
173	return Memcached::Handle->new(pid  => $childpid,
174				      conn => $conn,
175				      domainsocket => $filename,
176				      port => $port);
177    }
178
179    # try to connect / find open port, only if we're not using unix domain
180    # sockets
181
182    for (1..20) {
183	my $conn = IO::Socket::INET->new(PeerAddr => "127.0.0.1:$port");
184	if ($conn) {
185	    return Memcached::Handle->new(pid  => $childpid,
186					  conn => $conn,
187					  udpport => $udpport,
188					  port => $port);
189	}
190	select undef, undef, undef, 0.10;
191    }
192    croak("Failed to startup/connect to memcached server.");
193}
194
195############################################################################
196package Memcached::Handle;
197sub new {
198    my ($class, %params) = @_;
199    return bless \%params, $class;
200}
201
202sub DESTROY {
203    my $self = shift;
204    kill 9, $self->{pid};
205}
206
207sub port { $_[0]{port} }
208sub udpport { $_[0]{udpport} }
209
210sub sock {
211    my $self = shift;
212
213    if ($self->{conn} && ($self->{domainsocket} || getpeername($self->{conn}))) {
214	return $self->{conn};
215    }
216    return $self->new_sock;
217}
218
219sub new_sock {
220    my $self = shift;
221    if ($self->{domainsocket}) {
222	return IO::Socket::UNIX->new(Peer => $self->{domainsocket});
223    } else {
224	return IO::Socket::INET->new(PeerAddr => "127.0.0.1:$self->{port}");
225    }
226}
227
228sub new_udp_sock {
229    my $self = shift;
230    return IO::Socket::INET->new(PeerAddr => '127.0.0.1',
231                                 PeerPort => $self->{udpport},
232                                 Proto    => 'udp',
233                                 LocalAddr => '127.0.0.1',
234                                 LocalPort => MemcachedTest::free_port('udp'),
235                                 );
236
237}
238
2391;
240