10 if (!$Config::Config{useithreads}) {
11 print "1..0 # Skip: no ithreads\n";
14 if ($ENV{PERL_CORE_MINITEST}) {
15 print "1..0 # Skip: no dynamic loading on miniperl, no threads\n";
26 # test that we don't get:
27 # Attempt to free unreferenced scalar: SV 0x40173f3c
28 fresh_perl_is(<<'EOI', 'ok', { }, 'delete() under threads');
30 threads->create(sub { my %h=(1,2); delete $h{1}})->join for 1..2;
35 # test that we don't get:
36 # Attempt to free unreferenced scalar: SV 0x814e0dc.
37 fresh_perl_is(<<'EOI', 'ok', { }, 'weaken ref under threads');
43 Scalar::Util::weaken($copy);
44 threads->create(sub { 1 })->join for (1..1);
49 # test that we don't get:
50 # panic: magic_killbackrefs.
52 fresh_perl_is(<<'EOI', 'ok', { }, 'weaken ref #2 under threads');
54 sub new { bless {},shift }
57 use Scalar::Util qw(weaken);
58 my $object = Foo->new;
61 threads->create(sub { $ref = $object } )->join; # $ref = $object causes problems
65 #PR30333 - sort() crash with threads
66 sub mycmp { length($b) <=> length($a) }
68 sub do_sort_one_thread {
70 print "# kid $kid before sort\n";
71 my @list = ( 'x', 'yy', 'zzz', 'a', 'bb', 'ccc', 'aaaaa', 'z',
72 'hello', 's', 'thisisalongname', '1', '2', '3',
73 'abc', 'xyz', '1234567890', 'm', 'n', 'p' );
75 for my $j (1..99999) {
76 for my $k (sort mycmp @list) {}
78 print "# kid $kid after sort, sleeping 1\n";
80 print "# kid $kid exit\n";
86 for my $i (1..$nthreads) {
87 my $t = threads->create(\&do_sort_one_thread, $i);
88 print "# parent $$: continue\n";
92 print "# parent $$: waiting for join\n";
94 print "# parent $$: thread exited\n";
98 do_sort_threads(2); # crashes
101 # Change 24643 made the mistake of assuming that CvCONST can only be true on
102 # XSUBs. Somehow it can also end up on perl subs.
103 fresh_perl_is(<<'EOI', 'ok', { }, 'cloning constant subs');
106 $SIG{__WARN__} = sub{};
111 # From a test case by Tim Bunce in
112 # http://www.nntp.perl.org/group/perl.perl5.porters/63123
113 fresh_perl_is(<<'EOI', 'ok', { }, 'Ensure PL_linestr can be cloned');
115 print do 'op/threads_create.pl' || die $@;
120 foreach my $BLOCK (qw(CHECK INIT)) {
121 fresh_perl_is(<<EOI, 'ok', { }, "threads in $BLOCK block");
123 $BLOCK { threads->create(sub {})->join; }
129 fresh_perl_is(<<'EOI', 'ok', { }, 'Bug #41138');
135 threads->create(sub {})->join();
141 # [perl #45053] Memory corruption with heavy module loading in threads
143 # run-time usage of newCONSTSUB (as done by the IO boot code) wasn't
144 # thread-safe - got occasional coredumps or malloc corruption
146 local $SIG{__WARN__} = sub {}; # Ignore any thread creation failure warnings
149 my $thr = threads->create( sub { require IO });
150 last if !defined($thr); # Probably ran out of memory
154 ok(1, '[perl #45053]');
158 is (ref $_[1], "Regexp");
162 threads->new(\&matchit, "Pie", qr/pie/i)->join();
164 # tests in threads don't get counted, so
165 curr_test(curr_test() + 2);
168 # the seen_evals field of a regexp was getting zeroed on clone, so
169 # within a thread it didn't know that a regex object contrained a 'safe'
170 # re_eval expression, so it later died with 'Eval-group not allowed' when
171 # you tried to interpolate the object
174 my $re = qr/(?{1})/; # this is literal, so safe
175 eval { "a" =~ /$re$re/ }; # interpolating safe values, so safe
176 ok($@ eq "", 'clone seen-evals');
178 threads->new(\&safe_re)->join();
180 # tests in threads don't get counted, so
181 curr_test(curr_test() + 1);
183 # This used to crash in 5.10.0 [perl #64954]
186 threads->new(sub {})->join;
187 pass("undefing a typeglob doesn't cause a crash during cloning");
191 # panic: del_backref during global destruction.
192 # when returning a non-closure sub from a thread and subsequently starting
194 fresh_perl_is(<<'EOI', 'ok', { }, 'No del_backref panic [perl #70748]');
196 sub foo { return (sub { }); }
197 my $bar = threads->create(\&foo)->join();
198 threads->create(sub { })->join();
202 # Another, more reliable test for the same del_backref bug:
204 <<' EOJ', 'ok', {}, 'No del_backref panic [perl #70748] (2)'
206 push @bar, threads->create(sub{sub{}})->join() for 1...10;
211 # Simple closure-returning test: At least this case works (though it
212 # leaks), and we don't want to break it.
213 fresh_perl_is(<<'EOJ', 'foo', {}, 'returning a closure');
215 print create threads sub {
222 # At the point of thread creation, $h{1} is on the temps stack.
223 # The weak reference $a, however, is visible from the symbol table.
224 fresh_perl_is(<<'EOI', 'ok', { }, 'Test for 34394ecd06e704e9');
227 use Scalar::Util 'weaken';
230 delete $h{1} && threads->create(sub {}, shift)->join();
234 # This will fail in "interesting" ways if stashes in clone_params is not
235 # initialised correctly.
236 fresh_perl_like(<<'EOI', qr/\AThread 1 terminated abnormally: Not a CODE reference/, { }, 'RT #73046');
242 my %h = (1, *{$::{'foo::'}}{HASH});
243 *{$::{'foo::'}} = {};
245 threads->create({}, delete $h{1})->join();
250 fresh_perl_is(<<'EOI', 'ok', { }, '0 refcnt neither on tmps stack nor in @_');
253 use Scalar::Util 'weaken';
256 delete $h{1} && threads->create(sub {}, shift)->join();
266 threads->create(\&stuff)->join();
268 is ($a, undef, 'RT #73086 - clone used to clone active pads');
274 curr_test(curr_test() + 1);
284 threads->create(\&more_stuff)->join();
286 is ($a, undef, 'Just special casing lexicals in ?{ ... }');
292 curr_test(curr_test() + 1);
295 # Test from Jerry Hedden, reduced by him from Object::InsideOut's tests.
296 fresh_perl_is(<<'EOI', 'ok', { }, '0 refcnt during CLONE');
304 use Scalar::Util 'weaken';
310 # Create object with ID = 1
313 my $obj = bless(\do{ my $scalar = $id; }, $class);
315 # Save weak copy of object for reference during cloning
316 weaken($reg{$id} = $obj);
322 # Return the internal ID of the object
329 # During cloning 'look' at the object
331 foreach my $id (keys(%reg)) {
332 # This triggers SvREFCNT_inc() then SvREFCNT_dec() on the referant.
338 # Create object in 'main' thread
339 my $obj = My::Obj->new();
341 die "\$id is '$id'" unless $id == 1;
343 # Access object in thread
346 print $obj->id() == 1 ? "ok\n" : "not ok '" . $obj->id() . "'\n";