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thread_it.pl: Tweak stack sizes
[perl5.git] / t / thread_it.pl
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1#!perl
2use strict;
3use warnings;
4
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5# As perlfunc.pod says:
6# Note that the file will not be included twice under the same specified name.
7# So ensure that this, textually, is the same name as all the loaded tests use.
8# Otherwise if we require 'test.pl' and they require './test.pl', it is loaded
9# twice.
10require './test.pl';
11skip_all_without_config('useithreads');
12skip_all_if_miniperl("no dynamic loading on miniperl, no threads");
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13
14require threads;
15
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16# Which file called us?
17my $caller = (caller)[1];
18
19die "Can't figure out which test to run from filename '$caller'"
20 unless $caller =~ m!((?:op|re)/[-_a-z0-9A-Z]+)_thr\.t\z!;
21
22my $file = "$1.t";
23
24$::running_as_thread = "running tests in a new thread";
25require $file;
26
27note('running tests in a new thread');
28
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29# Currently 59*4096 is the minimum stack size to just get t/re/pat_thr.t to
30# pass on HP-UX 64bit PA-RISC. The test for capture buffers (eg \87)
31# recurses heavily, and busts the default stack size (65536 on PA-RISC)
c534a167 32# On Mac OS X under gcc and g++, the default stack size is also too small.
66478a1b 33my $curr = threads->create({
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34 stack_size => $^O eq 'hpux' ? 524288 :
35 $^O eq 'darwin' ? 847873 : 0,
66478a1b 36 }, sub {
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37 run_tests();
38 return defined &curr_test ? curr_test() : ()
39 })->join();
40
41curr_test($curr) if defined $curr;
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42
431;