Commit | Line | Data |
c0003851 |
1 | use strict; |
2 | use warnings; |
3 | |
4 | BEGIN { |
5 | if ($ENV{'PERL_CORE'}){ |
6 | chdir 't'; |
7 | unshift @INC, '../lib'; |
8 | } |
9 | use Config; |
10 | if (! $Config{'useithreads'}) { |
11 | print("1..0 # Skip: Perl not compiled with 'useithreads'\n"); |
12 | exit(0); |
13 | } |
14 | } |
15 | |
16 | use ExtUtils::testlib; |
17 | |
18 | use threads; |
19 | use threads::shared; |
20 | |
21 | { |
22 | package Thread::Semaphore; |
23 | use threads::shared; |
24 | |
25 | sub new { |
26 | my $class = shift; |
27 | my $val : shared = @_ ? shift : 1; |
28 | bless \$val, $class; |
29 | } |
30 | |
31 | sub down { |
32 | my $s = shift; |
33 | lock($$s); |
34 | my $inc = @_ ? shift : 1; |
35 | cond_wait $$s until $$s >= $inc; |
36 | $$s -= $inc; |
37 | } |
38 | |
39 | sub up { |
40 | my $s = shift; |
41 | lock($$s); |
42 | my $inc = @_ ? shift : 1; |
43 | ($$s += $inc) > 0 and cond_broadcast $$s; |
44 | } |
45 | } |
46 | |
47 | BEGIN { |
48 | $| = 1; |
49 | print("1..18\n"); ### Number of tests that will be run ### |
50 | }; |
51 | |
52 | my $TEST = 1; |
53 | share($TEST); |
54 | |
55 | ok(1, 'Loaded'); |
56 | |
57 | sub ok { |
58 | my ($ok, $name) = @_; |
59 | |
60 | lock($TEST); |
61 | my $id = $TEST++; |
62 | |
63 | # You have to do it this way or VMS will get confused. |
64 | if ($ok) { |
65 | print("ok $id - $name\n"); |
66 | } else { |
67 | print("not ok $id - $name\n"); |
68 | printf("# Failed test at line %d\n", (caller)[2]); |
69 | } |
70 | |
71 | return ($ok); |
72 | } |
73 | |
74 | |
75 | ### Start of Testing ### |
76 | |
77 | ### Thread cancel ### |
78 | |
79 | # Set up to capture warning when thread terminates |
80 | my @errs :shared; |
81 | $SIG{__WARN__} = sub { push(@errs, @_); }; |
82 | |
83 | |
84 | sub thr_func { |
85 | # Thread 'cancellation' signal handler |
86 | $SIG{'KILL'} = sub { |
87 | ok(1, 'Thread received signal'); |
88 | die("Thread killed\n"); |
89 | }; |
90 | |
91 | # Thread sleeps until signalled |
92 | ok(1, 'Thread sleeping'); |
774c1dbe |
93 | { |
94 | local $SIG{'INT'} = sub {}; |
95 | sleep(5); |
96 | } |
c0003851 |
97 | # Should not go past here |
98 | ok(0, 'Thread terminated normally'); |
99 | return ('ERROR'); |
100 | } |
101 | |
102 | |
103 | # Create thread |
104 | my $thr = threads->create('thr_func'); |
105 | ok($thr && $thr->tid() == 1, 'Created thread'); |
106 | threads->yield(); |
107 | sleep(1); |
108 | |
109 | # Signal thread |
110 | ok($thr->kill('KILL'), 'Signalled thread'); |
111 | threads->yield(); |
112 | |
113 | # Interrupt thread's sleep call |
114 | { |
774c1dbe |
115 | # We can't be sure whether the signal itself will get delivered to this |
116 | # thread or the sleeping thread |
c0003851 |
117 | local $SIG{'INT'} = sub {}; |
118 | ok(kill('INT', $$) || $^O eq 'MSWin32', q/Interrupt thread's sleep call/); |
119 | } |
120 | |
121 | # Cleanup |
122 | my $rc = $thr->join(); |
123 | ok(! $rc, 'No thread return value'); |
124 | |
125 | # Check for thread termination message |
126 | ok(@errs && $errs[0] =~ /Thread killed/, 'Thread termination warning'); |
127 | |
128 | |
129 | ### Thread suspend/resume ### |
130 | |
131 | sub thr_func2 |
132 | { |
133 | my $sema = shift; |
134 | ok($sema, 'Thread received semaphore'); |
135 | |
136 | # Set up the signal handler for suspension/resumption |
137 | $SIG{'STOP'} = sub { |
138 | ok(1, 'Thread suspending'); |
139 | $sema->down(); |
140 | ok(1, 'Thread resuming'); |
141 | $sema->up(); |
142 | }; |
143 | |
144 | # Set up the signal handler for graceful termination |
145 | my $term = 0; |
146 | $SIG{'TERM'} = sub { |
147 | ok(1, 'Thread caught termination signal'); |
148 | $term = 1; |
149 | }; |
150 | |
151 | # Do work until signalled to terminate |
152 | while (! $term) { |
153 | sleep(1); |
154 | } |
155 | |
156 | ok(1, 'Thread done'); |
157 | return ('OKAY'); |
158 | } |
159 | |
160 | |
161 | # Create a semaphore for use in suspending the thread |
162 | my $sema = Thread::Semaphore->new(); |
163 | ok($sema, 'Semaphore created'); |
164 | |
165 | # Create a thread and send it the semaphore |
166 | $thr = threads->create('thr_func2', $sema); |
167 | ok($thr && $thr->tid() == 2, 'Created thread'); |
168 | threads->yield(); |
169 | sleep(1); |
170 | |
171 | # Suspend the thread |
172 | $sema->down(); |
173 | ok($thr->kill('STOP'), 'Suspended thread'); |
174 | |
175 | threads->yield(); |
176 | sleep(1); |
177 | |
178 | # Allow the thread to continue |
179 | $sema->up(); |
180 | |
181 | threads->yield(); |
182 | sleep(1); |
183 | |
184 | # Terminate the thread |
185 | ok($thr->kill('TERM'), 'Signalled thread to terminate'); |
186 | |
187 | $rc = $thr->join(); |
188 | ok($rc eq 'OKAY', 'Thread return value'); |
189 | |
190 | # EOF |