Commit | Line | Data |
---|---|---|
8f3964af NC |
1 | #!perl -w |
2 | ||
3 | # We assume that TestInit has been used. | |
4 | ||
5 | BEGIN { | |
6 | require './test.pl'; | |
7 | } | |
8 | ||
9 | use strict; | |
0c1bf4c7 | 10 | use Config; |
8f3964af | 11 | |
100c03aa | 12 | plan tests => 29; |
6281d426 | 13 | $| = 1; |
8f3964af | 14 | |
011c3814 | 15 | watchdog(15); |
8f3964af NC |
16 | |
17 | $SIG{ALRM} = sub { | |
18 | die "Alarm!\n"; | |
19 | }; | |
20 | ||
21 | pass('before the first loop'); | |
22 | ||
23 | alarm 2; | |
24 | ||
25 | eval { | |
26 | 1 while 1; | |
27 | }; | |
28 | ||
29 | is($@, "Alarm!\n", 'after the first loop'); | |
30 | ||
31 | pass('before the second loop'); | |
32 | ||
33 | alarm 2; | |
34 | ||
35 | eval { | |
36 | while (1) { | |
37 | } | |
38 | }; | |
39 | ||
40 | is($@, "Alarm!\n", 'after the second loop'); | |
0c1bf4c7 LT |
41 | |
42 | SKIP: { | |
61fb63a6 | 43 | skip('We can\'t test blocking without sigprocmask', 17) |
b93d0e62 | 44 | if is_miniperl() || !$Config{d_sigprocmask}; |
0ac0889d RU |
45 | skip('This doesn\'t work on $^O threaded builds RT#88814', 17) |
46 | if $^O =~ /openbsd|cygwin/ && $Config{useithreads}; | |
0c1bf4c7 LT |
47 | |
48 | require POSIX; | |
61fb63a6 NC |
49 | my $pending = POSIX::SigSet->new(); |
50 | is POSIX::sigpending($pending), '0 but true', 'sigpending'; | |
51 | is $pending->ismember(&POSIX::SIGUSR1), 0, 'SIGUSR1 is not pending'; | |
0c1bf4c7 LT |
52 | my $new = POSIX::SigSet->new(&POSIX::SIGUSR1); |
53 | POSIX::sigprocmask(&POSIX::SIG_BLOCK, $new); | |
54 | ||
55 | my $gotit = 0; | |
56 | $SIG{USR1} = sub { $gotit++ }; | |
eb796c7f | 57 | kill 'SIGUSR1', $$; |
7fe50b8b | 58 | is $gotit, 0, 'Haven\'t received third signal yet'; |
0ac0889d RU |
59 | |
60 | diag "2nd sigpending crashes on cygwin" if $^O eq 'cygwin'; | |
61fb63a6 NC |
61 | is POSIX::sigpending($pending), '0 but true', 'sigpending'; |
62 | is $pending->ismember(&POSIX::SIGUSR1), 1, 'SIGUSR1 is pending'; | |
0c1bf4c7 LT |
63 | |
64 | my $old = POSIX::SigSet->new(); | |
65 | POSIX::sigsuspend($old); | |
66 | is $gotit, 1, 'Received third signal'; | |
61fb63a6 NC |
67 | is POSIX::sigpending($pending), '0 but true', 'sigpending'; |
68 | is $pending->ismember(&POSIX::SIGUSR1), 0, 'SIGUSR1 is no longer pending'; | |
0c1bf4c7 | 69 | |
7fe50b8b | 70 | { |
eb796c7f | 71 | kill 'SIGUSR1', $$; |
7fe50b8b LT |
72 | local $SIG{USR1} = sub { die "FAIL\n" }; |
73 | POSIX::sigprocmask(&POSIX::SIG_BLOCK, undef, $old); | |
74 | ok $old->ismember(&POSIX::SIGUSR1), 'SIGUSR1 is blocked'; | |
75 | eval { POSIX::sigsuspend(POSIX::SigSet->new) }; | |
76 | is $@, "FAIL\n", 'Exception is thrown, so received fourth signal'; | |
77 | POSIX::sigprocmask(&POSIX::SIG_BLOCK, undef, $old); | |
23292af3 CB |
78 | TODO: |
79 | { | |
80 | local $::TODO = "Needs investigation" if $^O eq 'VMS'; | |
7fe50b8b | 81 | ok $old->ismember(&POSIX::SIGUSR1), 'SIGUSR1 is still blocked'; |
23292af3 | 82 | } |
7fe50b8b LT |
83 | } |
84 | ||
554bc0f4 | 85 | POSIX::sigprocmask(&POSIX::SIG_BLOCK, $new); |
eb796c7f | 86 | kill 'SIGUSR1', $$; |
554bc0f4 LT |
87 | is $gotit, 1, 'Haven\'t received fifth signal yet'; |
88 | POSIX::sigprocmask(&POSIX::SIG_UNBLOCK, $new, $old); | |
89 | ok $old->ismember(&POSIX::SIGUSR1), 'SIGUSR1 was still blocked'; | |
7fe50b8b | 90 | is $gotit, 2, 'Received fifth signal'; |
c22d665b LT |
91 | |
92 | # test unsafe signal handlers in combination with exceptions | |
8aed2c65 DM |
93 | |
94 | SKIP: { | |
95 | # #89718: on old linux kernels, this test hangs. No-ones thought | |
96 | # of a reliable way to probe for this, so for now, just skip the | |
97 | # tests on production releases | |
98 | skip("some OSes hang here", 3) if (int($]*1000) & 1) == 0; | |
99 | ||
100 | my $action = POSIX::SigAction->new(sub { $gotit--, die }, POSIX::SigSet->new, 0); | |
101 | POSIX::sigaction(&POSIX::SIGALRM, $action); | |
102 | eval { | |
103 | alarm 1; | |
104 | my $set = POSIX::SigSet->new; | |
105 | POSIX::sigprocmask(&POSIX::SIG_BLOCK, undef, $set); | |
106 | is $set->ismember(&POSIX::SIGALRM), 0, "SIGALRM is not blocked on attempt $_"; | |
107 | POSIX::sigsuspend($set); | |
108 | } for 1..2; | |
109 | is $gotit, 0, 'Received both signals'; | |
110 | } | |
0c1bf4c7 | 111 | } |
011c3814 | 112 | |
476c37e2 NC |
113 | SKIP: { |
114 | skip("alarm cannot interrupt blocking system calls on $^O", 2) | |
0ac0889d | 115 | if $^O =~ /MSWin32|cygwin|VMS/; |
011c3814 DM |
116 | # RT #88774 |
117 | # make sure the signal handler's called in an eval block *before* | |
118 | # the eval is popped | |
119 | ||
120 | $SIG{'ALRM'} = sub { die "HANDLER CALLED\n" }; | |
121 | ||
122 | eval { | |
123 | alarm(2); | |
124 | select(undef,undef,undef,10); | |
125 | }; | |
126 | alarm(0); | |
127 | is($@, "HANDLER CALLED\n", 'block eval'); | |
128 | ||
129 | eval q{ | |
130 | alarm(2); | |
131 | select(undef,undef,undef,10); | |
132 | }; | |
133 | alarm(0); | |
134 | is($@, "HANDLER CALLED\n", 'string eval'); | |
135 | } | |
84c7b88c BF |
136 | |
137 | eval { $SIG{"__WARN__\0"} = sub { 1 } }; | |
138 | like $@, qr/No such hook: __WARN__\\0 at/, q!Fetching %SIG hooks with an extra trailing nul is nul-clean!; | |
139 | ||
140 | eval { $SIG{"__DIE__\0whoops"} = sub { 1 } }; | |
141 | like $@, qr/No such hook: __DIE__\\0whoops at/; | |
142 | ||
143 | { | |
144 | use warnings; | |
145 | my $w; | |
146 | local $SIG{__WARN__} = sub { $w = shift }; | |
147 | ||
148 | $SIG{"KILL\0"} = sub { 1 }; | |
149 | like $w, qr/No such signal: SIGKILL\\0 at/, 'Arbitrary signal lookup through %SIG is clean'; | |
150 | } | |
100c03aa JL |
151 | |
152 | # [perl #45173] | |
153 | { | |
6281d426 TC |
154 | my $int_called; |
155 | local $SIG{INT} = sub { $int_called = 1; }; | |
100c03aa JL |
156 | $@ = "died"; |
157 | is($@, "died"); | |
6281d426 TC |
158 | kill 'INT', $$; |
159 | # this is needed to ensure signal delivery on MSWin32 | |
160 | sleep(1); | |
161 | is($int_called, 1); | |
100c03aa JL |
162 | is($@, "died"); |
163 | } |