1 ################################################################################
5 # $Date: 2010/03/07 16:01:42 +0100 $
7 ################################################################################
9 # Version 2.x, Copyright (C) 2007-2010, Marcus Holland-Moritz <mhx@cpan.org>.
10 # Version 1.x, Copyright (C) 1999, Graham Barr <gbarr@pobox.com>.
12 # This program is free software; you can redistribute it and/or
13 # modify it under the same terms as Perl itself.
15 ################################################################################
18 chdir 't' if -d 't' && $ENV{'PERL_CORE'};
20 set_up_inc('../lib') if $ENV{'PERL_CORE'} && -d '../lib' && -d '../ext';
22 require Config; import Config;
24 if ($ENV{'PERL_CORE'} && $Config{'extensions'} !~ m[\bIPC/SysV\b]) {
25 skip_all('-- IPC::SysV was not built');
27 skip_all_if_miniperl();
28 if ($Config{'d_shm'} ne 'define') {
29 skip_all('-- $Config{d_shm} undefined');
34 use sigtrap qw/die normal-signals error-signals/;
35 use IPC::SysV qw/ IPC_PRIVATE S_IRWXU IPC_RMID /;
38 END { shmctl $key, IPC_RMID, 0 if defined $key }
41 local $SIG{SYS} = sub { skip_all("SIGSYS caught") } if exists $SIG{SYS};
42 $key = shmget IPC_PRIVATE, 8, S_IRWXU;
45 if (not defined $key) {
46 my $info = "IPC::SharedMem->new failed: $!";
47 if ($! == &IPC::SysV::ENOSPC || $! == &IPC::SysV::ENOSYS ||
48 $! == &IPC::SysV::ENOMEM || $! == &IPC::SysV::EACCES) {
57 pass('acquired shared mem');
60 ok(shmwrite($key, pack("N", 4711), 0, 4), 'write(offs=0)');
61 ok(shmwrite($key, pack("N", 210577), 4, 4), 'write(offs=4)');
64 ok(shmread($key, $var, 0, 4), 'read(offs=0) returned ok');
65 is($var, pack("N", 4711), 'read(offs=0) correct');
66 ok(shmread($key, $var, 4, 4), 'read(offs=4) returned ok');
67 is($var, pack("N", 210577), 'read(offs=4) correct');
69 ok(shmwrite($key, "Shared", 1, 6), 'write(offs=1)');
71 ok(shmread($key, $var, 1, 6), 'read(offs=1) returned ok');
72 is($var, 'Shared', 'read(offs=1) correct');
73 ok(shmwrite($key,"Memory", 0, 6), 'write(offs=0)');
77 shmwrite $key, $int, 0, 1;
78 shmread $key, $number, 0, 1;
79 is("$number", $int, qq{"\$id" eq "$int"});
80 cmp_ok($number + 0, '==', $int, "\$id + 0 == $int");
82 my ($fetch, $store) = (0, 0);
84 sub TIESCALAR { bless [undef] }
85 sub FETCH { ++$fetch; $_[0][0] }
86 sub STORE { ++$store; $_[0][0] = $_[1] } }
88 shmread $key, $ct, 0, 1;
89 is($fetch, 1, "shmread FETCH once");
90 is($store, 1, "shmread STORE once");
93 # check reading into an upgraded buffer is sane
94 my $text = "\xC0\F0AB";
95 ok(shmwrite($key, $text, 0, 4), "setup text");
96 my $rdbuf = "\x{101}";
97 ok(shmread($key, $rdbuf, 0, 4), "read it back");
98 is($rdbuf, $text, "check we got back the expected");
100 # check writing from an upgraded buffer
101 utf8::upgrade(my $utext = $text);
102 ok(shmwrite($key, $utext, 0, 4), "setup text (upgraded source)");
104 ok(shmread($key, $rdbuf, 0, 4), "read it back (upgraded source)");
105 is($rdbuf, $text, "check we got back the expected (upgraded source)");