1#!perl -T
2
3use strict;
4use warnings;
5
6sub skipall {
7 my ($msg) = @_;
8 require Test::More;
9 Test::More::plan(skip_all => $msg);
10}
11
12use Config qw/%Config/;
13
14BEGIN {
15 my $t_v  = '1.67';
16 my $ts_v = '1.14';
17 skipall 'This perl wasn\'t built to support threads'
18                                                    unless $Config{useithreads};
19 skipall "threads $t_v required to test thread safety"
20                                              unless eval "use threads $t_v; 1";
21 skipall "threads::shared $ts_v required to test thread safety"
22                                     unless eval "use threads::shared $ts_v; 1";
23}
24
25use Test::More; # after threads
26
27use Variable::Magic qw/wizard cast dispell getdata VMG_THREADSAFE VMG_OP_INFO_NAME VMG_OP_INFO_OBJECT/;
28
29BEGIN {
30 skipall 'This Variable::Magic isn\'t thread safe' unless VMG_THREADSAFE;
31 plan tests => (4 * 18 + 1) + (4 * 13 + 1);
32 my $v = $threads::VERSION;
33 diag "Using threads $v" if defined $v;
34 $v = $threads::shared::VERSION;
35 diag "Using threads::shared $v" if defined $v;
36}
37
38my $destroyed : shared = 0;
39
40sub try {
41 my ($dispell, $op_info) = @_;
42 my $tid = threads->tid();
43 my $c   = 0;
44 my $wiz = eval {
45  wizard data    => sub { $_[1] + $tid },
46         get     => sub { ++$c; 0 },
47         set     => sub {
48                     my $op = $_[-1];
49                     if ($op_info == VMG_OP_INFO_OBJECT) {
50                      is_deeply { class => ref($op),   name => $op->name },
51                                { class => 'B::BINOP', name => 'sassign' },
52                                "op object in thread $tid is correct";
53                     } else {
54                      is $op, 'sassign', "op name in thread $tid is correct";
55                     }
56                     0
57                    },
58         free    => sub { lock $destroyed; ++$destroyed; 0 },
59         op_info => $op_info
60 };
61 is($@,     '',    "wizard in thread $tid doesn't croak");
62 isnt($wiz, undef, "wizard in thread $tid is defined");
63 is($c,     0,     "wizard in thread $tid doesn't trigger magic");
64 my $a = 3;
65 my $res = eval { cast $a, $wiz, sub { 5 }->() };
66 is($@, '', "cast in thread $tid doesn't croak");
67 is($c, 0,  "cast in thread $tid doesn't trigger magic");
68 my $b;
69 eval { $b = $a };
70 is($@, '', "get in thread $tid doesn't croak");
71 is($b, 3,  "get in thread $tid returns the right thing");
72 is($c, 1,  "get in thread $tid triggers magic");
73 my $d = eval { getdata $a, $wiz };
74 is($@, '',       "getdata in thread $tid doesn't croak");
75 is($d, 5 + $tid, "getdata in thread $tid returns the right thing");
76 is($c, 1,        "getdata in thread $tid doesn't trigger magic");
77 eval { $a = 9 };
78 is($@, '', "set in thread $tid (check opname) doesn't croak");
79 if ($dispell) {
80  $res = eval { dispell $a, $wiz };
81  is($@, '', "dispell in thread $tid doesn't croak");
82  is($c, 1,  "dispell in thread $tid doesn't trigger magic");
83  undef $b;
84  eval { $b = $a };
85  is($@, '', "get in thread $tid after dispell doesn't croak");
86  is($b, 9,  "get in thread $tid after dispell returns the right thing");
87  is($c, 1,  "get in thread $tid after dispell doesn't trigger magic");
88 }
89 return; # Ugly if not here
90}
91
92for my $dispell (1, 0) {
93 {
94  lock $destroyed;
95  $destroyed = 0;
96 }
97
98 my @t = map { threads->create(\&try, $dispell, $_) }
99                              (VMG_OP_INFO_NAME) x 2, (VMG_OP_INFO_OBJECT) x 2;
100 $_->join for @t;
101
102 {
103  lock $destroyed;
104  is $destroyed, (1 - $dispell) * 4, 'destructors';
105 }
106}
107