xref: /openbsd/gnu/usr.bin/perl/t/op/getpid.t (revision 17df1aa7)
1#!perl -w
2
3# Tests if $$ and getppid return consistent values across threads
4
5BEGIN {
6    chdir 't' if -d 't';
7    @INC = qw(../lib);
8    require './test.pl';
9}
10
11use strict;
12use Config;
13
14BEGIN {
15    if (!$Config{useithreads}) {
16	print "1..0 # Skip: no ithreads\n";
17	exit;
18    }
19    if (!$Config{d_getppid}) {
20	print "1..0 # Skip: no getppid\n";
21	exit;
22    }
23    if ($ENV{PERL_CORE_MINITEST}) {
24        print "1..0 # Skip: no dynamic loading on miniperl, no threads\n";
25        exit 0;
26    }
27    eval 'use threads; use threads::shared';
28    plan tests => 3;
29    if ($@) {
30	fail("unable to load thread modules");
31    }
32    else {
33	pass("thread modules loaded");
34    }
35}
36
37my ($pid, $ppid) = ($$, getppid());
38my $pid2 : shared = 0;
39my $ppid2 : shared = 0;
40
41new threads( sub { ($pid2, $ppid2) = ($$, getppid()); } ) -> join();
42
43is($pid,  $pid2,  'pids');
44is($ppid, $ppid2, 'ppids');
45