3 # We assume that TestInit has been used.
21 pass('before the first loop');
29 is($@, "Alarm!\n", 'after the first loop');
31 pass('before the second loop');
40 is($@, "Alarm!\n", 'after the second loop');
43 skip('We can\'t test blocking without sigprocmask', 17)
44 if is_miniperl() || !$Config{d_sigprocmask};
45 skip("This doesn\'t work on $^O threaded builds RT#88814", 17)
46 if ($^O =~ /cygwin/ || $^O eq "openbsd" && $Config{osvers} < 5.2)
47 && $Config{useithreads};
50 my $pending = POSIX::SigSet->new();
51 is POSIX::sigpending($pending), '0 but true', 'sigpending';
52 is $pending->ismember(&POSIX::SIGUSR1), 0, 'SIGUSR1 is not pending';
53 my $new = POSIX::SigSet->new(&POSIX::SIGUSR1);
54 POSIX::sigprocmask(&POSIX::SIG_BLOCK, $new);
57 $SIG{USR1} = sub { $gotit++ };
59 is $gotit, 0, 'Haven\'t received third signal yet';
61 diag "2nd sigpending crashes on cygwin" if $^O eq 'cygwin';
62 is POSIX::sigpending($pending), '0 but true', 'sigpending';
63 is $pending->ismember(&POSIX::SIGUSR1), 1, 'SIGUSR1 is pending';
65 my $old = POSIX::SigSet->new();
66 POSIX::sigsuspend($old);
67 is $gotit, 1, 'Received third signal';
68 is POSIX::sigpending($pending), '0 but true', 'sigpending';
69 is $pending->ismember(&POSIX::SIGUSR1), 0, 'SIGUSR1 is no longer pending';
73 local $SIG{USR1} = sub { die "FAIL\n" };
74 POSIX::sigprocmask(&POSIX::SIG_BLOCK, undef, $old);
75 ok $old->ismember(&POSIX::SIGUSR1), 'SIGUSR1 is blocked';
76 eval { POSIX::sigsuspend(POSIX::SigSet->new) };
77 is $@, "FAIL\n", 'Exception is thrown, so received fourth signal';
78 POSIX::sigprocmask(&POSIX::SIG_BLOCK, undef, $old);
81 local $::TODO = "Needs investigation" if $^O eq 'VMS';
82 ok $old->ismember(&POSIX::SIGUSR1), 'SIGUSR1 is still blocked';
86 POSIX::sigprocmask(&POSIX::SIG_BLOCK, $new);
88 is $gotit, 1, 'Haven\'t received fifth signal yet';
89 POSIX::sigprocmask(&POSIX::SIG_UNBLOCK, $new, $old);
90 ok $old->ismember(&POSIX::SIGUSR1), 'SIGUSR1 was still blocked';
91 is $gotit, 2, 'Received fifth signal';
93 # test unsafe signal handlers in combination with exceptions
96 # #89718: on old linux kernels, this test hangs. No-ones thought
97 # of a reliable way to probe for this, so for now, just skip the
98 # tests on production releases
99 skip("some OSes hang here", 3) if (int($]*1000) & 1) == 0;
102 skip("Issues on Android", 3) if $^O =~ /android/;
103 my $action = POSIX::SigAction->new(sub { $gotit--, die }, POSIX::SigSet->new, 0);
104 POSIX::sigaction(&POSIX::SIGALRM, $action);
107 my $set = POSIX::SigSet->new;
108 POSIX::sigprocmask(&POSIX::SIG_BLOCK, undef, $set);
109 is $set->ismember(&POSIX::SIGALRM), 0, "SIGALRM is not blocked on attempt $_";
110 POSIX::sigsuspend($set);
112 is $gotit, 0, 'Received both signals';
118 skip("alarm cannot interrupt blocking system calls on $^O", 2)
119 if $^O =~ /MSWin32|cygwin|VMS/;
121 # make sure the signal handler's called in an eval block *before*
124 $SIG{'ALRM'} = sub { die "HANDLER CALLED\n" };
128 select(undef,undef,undef,10);
131 is($@, "HANDLER CALLED\n", 'block eval');
135 select(undef,undef,undef,10);
138 is($@, "HANDLER CALLED\n", 'string eval');
141 eval { $SIG{"__WARN__\0"} = sub { 1 } };
142 like $@, qr/No such hook: __WARN__\\0 at/, q!Fetching %SIG hooks with an extra trailing nul is nul-clean!;
144 eval { $SIG{"__DIE__\0whoops"} = sub { 1 } };
145 like $@, qr/No such hook: __DIE__\\0whoops at/;
150 local $SIG{__WARN__} = sub { $w = shift };
152 $SIG{"KILL\0"} = sub { 1 };
153 like $w, qr/No such signal: SIGKILL\\0 at/, 'Arbitrary signal lookup through %SIG is clean';
159 local $SIG{INT} = sub { $int_called = 1; };
163 # this is needed to ensure signal delivery on MSWin32