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Need to skip Storable's threads test on 5.8.2 with ithreads and
[perl5.git] / ext / Storable / t / threads.t
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1
2# as of 2.09 on win32 Storable w/threads dies with "free to wrong
3# pool" since it uses the same context for different threads. since
4# win32 perl implementation allocates a different memory pool for each
5# thread using the a memory pool from one thread to allocate memory
6# for another thread makes win32 perl very unhappy
7#
8# but the problem exists everywhere, not only on win32 perl , it's
9# just hard to catch it deterministically - since the same context is
10# used if two or more threads happen to change the state of the
11# context in the middle of the operation, and those operations aren't
12# atomic per thread, bad things including data loss and corrupted data
13# can happen.
14#
15# this has been solved in 2.10 by adding a Storable::CLONE which calls
16# Storable::init_perinterp() to create a new context for each new
17# thread when it starts
18
19sub BEGIN {
20 if ($ENV{PERL_CORE}){
21 chdir('t') if -d 't';
22 @INC = ('.', '../lib');
23 } else {
24 unshift @INC, 't';
25 }
26 require Config; import Config;
27 if ($ENV{PERL_CORE} and $Config{'extensions'} !~ /\bStorable\b/) {
28 print "1..0 # Skip: Storable was not built\n";
29 exit 0;
30 }
31 unless ($Config{'useithreads'} and eval { require threads; 1 }) {
32 print "1..0 # Skip: no threads\n";
33 exit 0;
34 }
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35 # - is \W, so can't use \b at start. Negative look ahead and look behind
36 # works at start/end of string, or where preceded/followed by spaces
37 if ($] == 5.008002 and $Config{'ccflags'} =~ /(?<!\S)-DDEBUGGING(?!\S)/) {
38 # Bug caused by change 21610, fixed by change 21849
39 print "1..0 # Skip: tickles bug in threads combined with -DDEBUGGING on 5.8.2\n";
40 exit 0;
41 }
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42}
43
44use Test::More;
45
46use strict;
47
48use threads;
49use Storable qw(nfreeze);
50
51plan tests => 2;
52
53threads->new(\&sub1);
54
55$_->join() for threads->list();
56
57ok 1;
58
59sub sub1 {
60 nfreeze {};
61 ok 1;
62}