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#!perl
BEGIN {
chdir 't' if -d 't';
require "./test.pl";
set_up_inc( '../lib' ) if -d '../lib' && -d '../ext';
require Config; Config->import;
if ($ENV{'PERL_CORE'} && $Config{'extensions'} !~ m[\bIPC/SysV\b]) {
skip_all('-- IPC::SysV was not built');
}
skip_all_if_miniperl();
if ($Config{'d_sem'} ne 'define') {
skip_all('-- $Config{d_sem} undefined');
}
}
use strict;
use warnings;
our $TODO;
use sigtrap qw/die normal-signals error-signals/;
use IPC::SysV qw/ IPC_PRIVATE S_IRUSR S_IWUSR IPC_RMID SETVAL GETVAL SETALL GETALL IPC_CREAT IPC_STAT /;
my $id;
my $nsem = 10;
my $ignored = 0;
END { semctl $id, 0, IPC_RMID, 0 if defined $id }
{
local $SIG{SYS} = sub { skip_all("SIGSYS caught") } if exists $SIG{SYS};
$id = semget IPC_PRIVATE, $nsem, S_IRUSR | S_IWUSR | IPC_CREAT;
}
if (not defined $id) {
my $info = "semget failed: $!";
if ($! == &IPC::SysV::ENOSPC || $! == &IPC::SysV::ENOSYS ||
$! == &IPC::SysV::ENOMEM || $! == &IPC::SysV::EACCES) {
skip_all($info);
}
else {
die $info;
}
}
else {
plan(tests => 22);
pass('acquired semaphore');
}
my @warnings;
$SIG{__WARN__} = sub { push @warnings, "@_"; print STDERR @_; };
{ # [perl #120635] 64 bit big-endian semctl SETVAL bug
ok(semctl($id, $ignored, SETALL, pack("s!*",(0)x$nsem)),
"Initialize all $nsem semaphores to zero");
my $sem2set = 3;
my $semval = 192;
ok(semctl($id, $sem2set, SETVAL, $semval),
"Set semaphore $sem2set to $semval");
my $semvals;
ok(semctl($id, $ignored, GETALL, $semvals),
'Get current semaphore values');
my @semvals = unpack("s!*", $semvals);
is(scalar(@semvals), $nsem,
"Make sure we get back statuses for all $nsem semaphores");
is($semvals[$sem2set], $semval,
"Checking value of semaphore $sem2set");
is(semctl($id, $sem2set, GETVAL, $ignored), $semval,
"Check value via GETVAL");
# check utf-8 flag handling
# first that we reset it on a fetch
utf8::upgrade($semvals);
ok(semctl($id, $ignored, GETALL, $semvals),
"fetch into an already UTF-8 buffer");
@semvals = unpack("s!*", $semvals);
is($semvals[$sem2set], $semval,
"Checking value of semaphore $sem2set after fetch into originally UTF-8 buffer");
# second that we treat it as bytes on input
@semvals = ( 0 ) x $nsem;
$semvals[$sem2set] = $semval + 1;
$semvals = pack "s!*", @semvals;
utf8::upgrade($semvals);
# eval{} since it would crash due to the UTF-8 form being longer
ok(eval { semctl($id, $ignored, SETALL, $semvals) },
"set all semaphores from an upgraded string");
# undef here to test it doesn't warn
is(semctl($id, $sem2set, GETVAL, undef), $semval+1,
"test value set from UTF-8");
# third, that we throw on a code point above 0xFF
substr($semvals, 0, 1) = chr(0x101);
ok(!eval { semctl($id, $ignored, SETALL, $semvals); 1 },
"throws on code points above 0xff");
like($@, qr/Wide character/, "with the expected error");
{
# semop tests
ok(semctl($id, $sem2set, SETVAL, 0),
"reset our working entry");
# sanity check without UTF-8
my $op = pack "s!*", $sem2set, $semval, 0;
ok(semop($id, $op), "add to entry $sem2set");
is(semctl($id, $sem2set, GETVAL, 0), $semval,
"check it added to the entry");
utf8::upgrade($op);
# unlike semctl this doesn't throw on a bad size, so we don't need an
# eval with the buggy code
ok(semop($id, $op), "add more to entry $sem2set (UTF-8)");
is(semctl($id, $sem2set, GETVAL, 0), $semval*2,
"check it added to the entry");
substr($op, 0, 1) = chr(0x101);
ok(!eval { semop($id, $op); 1 },
"test semop throws if the op string isn't 'bytes'");
like($@, qr/Wide character/, "with the expected error");
}
}
{
my $stat;
# shouldn't warn
semctl($id, $ignored, IPC_STAT, $stat);
ok(defined $stat, "it statted");
}
is(scalar @warnings, 0, "no warnings");
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