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|
#!perl -w
# We assume that TestInit has been used.
BEGIN {
require './test.pl';
}
use strict;
use Config;
plan tests => 17;
watchdog(15);
$SIG{ALRM} = sub {
die "Alarm!\n";
};
pass('before the first loop');
alarm 2;
eval {
1 while 1;
};
is($@, "Alarm!\n", 'after the first loop');
pass('before the second loop');
alarm 2;
eval {
while (1) {
}
};
is($@, "Alarm!\n", 'after the second loop');
SKIP: {
skip('We can\'t test blocking without sigprocmask', 11)
if is_miniperl() || !$Config{d_sigprocmask};
skip('This doesn\'t work on OpenBSD threaded builds RT#88814', 11)
if $^O eq 'openbsd' && $Config{useithreads};
require POSIX;
my $new = POSIX::SigSet->new(&POSIX::SIGUSR1);
POSIX::sigprocmask(&POSIX::SIG_BLOCK, $new);
my $gotit = 0;
$SIG{USR1} = sub { $gotit++ };
kill 'SIGUSR1', $$;
is $gotit, 0, 'Haven\'t received third signal yet';
my $old = POSIX::SigSet->new();
POSIX::sigsuspend($old);
is $gotit, 1, 'Received third signal';
{
kill 'SIGUSR1', $$;
local $SIG{USR1} = sub { die "FAIL\n" };
POSIX::sigprocmask(&POSIX::SIG_BLOCK, undef, $old);
ok $old->ismember(&POSIX::SIGUSR1), 'SIGUSR1 is blocked';
eval { POSIX::sigsuspend(POSIX::SigSet->new) };
is $@, "FAIL\n", 'Exception is thrown, so received fourth signal';
POSIX::sigprocmask(&POSIX::SIG_BLOCK, undef, $old);
TODO:
{
local $::TODO = "Needs investigation" if $^O eq 'VMS';
ok $old->ismember(&POSIX::SIGUSR1), 'SIGUSR1 is still blocked';
}
}
POSIX::sigprocmask(&POSIX::SIG_BLOCK, $new);
kill 'SIGUSR1', $$;
is $gotit, 1, 'Haven\'t received fifth signal yet';
POSIX::sigprocmask(&POSIX::SIG_UNBLOCK, $new, $old);
ok $old->ismember(&POSIX::SIGUSR1), 'SIGUSR1 was still blocked';
is $gotit, 2, 'Received fifth signal';
# test unsafe signal handlers in combination with exceptions
my $action = POSIX::SigAction->new(sub { $gotit--, die }, POSIX::SigSet->new, 0);
POSIX::sigaction(&POSIX::SIGALRM, $action);
eval {
alarm 1;
my $set = POSIX::SigSet->new;
POSIX::sigprocmask(&POSIX::SIG_BLOCK, undef, $set);
is $set->ismember(&POSIX::SIGALRM), 0, "SIGALRM is not blocked on attempt $_";
POSIX::sigsuspend($set);
} for 1..2;
is $gotit, 0, 'Received both signals';
}
SKIP: {
skip("alarm cannot interrupt blocking system calls on $^O", 2)
if ($^O eq 'MSWin32' || $^O eq 'VMS');
# RT #88774
# make sure the signal handler's called in an eval block *before*
# the eval is popped
$SIG{'ALRM'} = sub { die "HANDLER CALLED\n" };
eval {
alarm(2);
select(undef,undef,undef,10);
};
alarm(0);
is($@, "HANDLER CALLED\n", 'block eval');
eval q{
alarm(2);
select(undef,undef,undef,10);
};
alarm(0);
is($@, "HANDLER CALLED\n", 'string eval');
}
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