Commit | Line | Data |
2a6601ce |
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 (! $Config{'useithreads'}) { |
11 | print("1..0 # Skip: Perl not compiled with 'useithreads'\n"); |
12 | exit(0); |
13 | } |
14 | eval { |
15 | require Time::HiRes; |
16 | import Time::HiRes qw(time); |
17 | }; |
18 | if ($@) { |
19 | print("1..0 # Skip: Time::HiRes not available.\n"); |
20 | exit(0); |
21 | } |
22 | } |
23 | |
24 | use ExtUtils::testlib; |
25 | |
26 | my $Base = 0; |
27 | sub ok { |
28 | my ($id, $ok, $name) = @_; |
29 | $id += $Base; |
30 | |
31 | # You have to do it this way or VMS will get confused. |
32 | if ($ok) { |
33 | print("ok $id - $name\n"); |
34 | } else { |
35 | print("not ok $id - $name\n"); |
36 | printf("# Failed test at line %d\n", (caller)[2]); |
37 | } |
38 | |
39 | return ($ok); |
40 | } |
41 | |
42 | BEGIN { |
43 | $| = 1; |
44 | print("1..63\n"); ### Number of tests that will be run ### |
45 | }; |
46 | |
47 | use threads; |
48 | use threads::shared; |
49 | |
50 | ok(1, 1, 'Loaded'); |
51 | $Base++; |
52 | |
53 | ### Start of Testing ### |
54 | |
55 | # subsecond cond_timedwait extended tests adapted from wait.t |
56 | |
57 | # The two skips later on in these tests refer to this quote from the |
58 | # pod/perl583delta.pod: |
59 | # |
60 | # =head1 Platform Specific Problems |
61 | # |
62 | # The regression test ext/threads/shared/t/wait.t fails on early RedHat 9 |
63 | # and HP-UX 10.20 due to bugs in their threading implementations. |
64 | # RedHat users should see https://rhn.redhat.com/errata/RHBA-2003-136.html |
65 | # and consider upgrading their glibc. |
66 | |
67 | sub forko (&$$); # To prevent deadlock from underlying pthread_* bugs (as in |
68 | # stock RH9 glibc/NPTL) or from our own errors, we run tests |
69 | # in separately forked and alarmed processes. |
70 | |
71 | *forko = ($^O =~ /^dos|os2|mswin32|netware|vms$/i) |
72 | ? sub (&$$) { my $code = shift; goto &$code; } |
73 | : sub (&$$) { |
74 | my ($code, $expected, $patience) = @_; |
75 | my ($test_num, $pid); |
76 | local *CHLD; |
77 | |
78 | my $bump = $expected; |
79 | |
80 | $patience ||= 60; |
81 | |
82 | unless (defined($pid = open(CHLD, "-|"))) { |
83 | die "fork: $!\n"; |
84 | } |
85 | if (! $pid) { # Child -- run the test |
86 | $patience ||= 60; |
87 | alarm $patience; |
88 | &$code; |
89 | exit; |
90 | } |
91 | |
92 | while (<CHLD>) { |
93 | $expected--, $test_num=$1 if /^(?:not )?ok (\d+)/; |
94 | #print "#forko: ($expected, $1) $_"; |
95 | print; |
96 | } |
97 | |
98 | close(CHLD); |
99 | |
100 | while ($expected--) { |
101 | $test_num++; |
102 | print "not ok $test_num - child status $?\n"; |
103 | } |
104 | |
105 | $Base += $bump; |
106 | |
107 | }; |
108 | |
109 | # - TEST basics |
110 | |
111 | my @wait_how = ( |
112 | "simple", # cond var == lock var; implicit lock; e.g.: cond_wait($c) |
113 | "repeat", # cond var == lock var; explicit lock; e.g.: cond_wait($c, $c) |
114 | "twain" # cond var != lock var; explicit lock; e.g.: cond_wait($c, $l) |
115 | ); |
116 | |
117 | SYNC_SHARED: { |
118 | my $test : shared; # simple|repeat|twain |
119 | my $cond : shared; |
120 | my $lock : shared; |
121 | |
122 | ok(1, 1, "Shared synchronization tests preparation"); |
123 | $Base += 1; |
124 | |
125 | sub signaller { |
126 | ok(2,1,"$test: child before lock"); |
127 | $test =~ /twain/ ? lock($lock) : lock($cond); |
128 | ok(3,1,"$test: child obtained lock"); |
129 | if ($test =~ 'twain') { |
130 | no warnings 'threads'; # lock var != cond var, so disable warnings |
131 | cond_signal($cond); |
132 | } else { |
133 | cond_signal($cond); |
134 | } |
135 | ok(4,1,"$test: child signalled condition"); |
136 | } |
137 | |
138 | # - TEST cond_timedwait success |
139 | |
140 | forko( sub { |
141 | foreach (@wait_how) { |
142 | $test = "cond_timedwait [$_]"; |
143 | threads->create(\&ctw, 0.05)->join; |
144 | $Base += 6; |
145 | } |
146 | }, 6*@wait_how, 5); |
147 | |
148 | sub ctw($) { |
149 | my $to = shift; |
150 | my $thr; |
151 | |
152 | { # -- begin lock scope; which lock to obtain? |
153 | $test =~ /twain/ ? lock($lock) : lock($cond); |
154 | ok(1,1, "$test: obtained initial lock"); |
155 | |
156 | $thr = threads->create(\&signaller); |
157 | my $ok = 0; |
158 | for ($test) { |
159 | $ok=cond_timedwait($cond, time() + $to), last if /simple/; |
160 | $ok=cond_timedwait($cond, time() + $to, $cond), last if /repeat/; |
161 | $ok=cond_timedwait($cond, time() + $to, $lock), last if /twain/; |
162 | die "$test: unknown test\n"; |
163 | } |
164 | ok(5,$ok, "$test: condition obtained"); |
165 | } # -- end lock scope |
166 | |
167 | $thr->join; |
168 | ok(6,1, "$test: join completed"); |
169 | } |
170 | |
171 | # - TEST cond_timedwait timeout |
172 | |
173 | forko( sub { |
174 | foreach (@wait_how) { |
175 | $test = "cond_timedwait pause, timeout [$_]"; |
176 | threads->create(\&ctw_fail, 0.3)->join; |
177 | $Base += 2; |
178 | } |
179 | }, 2*@wait_how, 5); |
180 | |
181 | forko( sub { |
182 | foreach (@wait_how) { |
183 | $test = "cond_timedwait instant timeout [$_]"; |
184 | threads->create(\&ctw_fail, -0.60)->join; |
185 | $Base += 2; |
186 | } |
187 | }, 2*@wait_how, 5); |
188 | |
189 | # cond_timedwait timeout (relative timeout) |
190 | sub ctw_fail { |
191 | my $to = shift; |
192 | if ($^O eq "hpux" && $Config{osvers} <= 10.20) { |
193 | # The lock obtaining would pass, but the wait will not. |
194 | ok(1,1, "$test: obtained initial lock"); |
195 | ok(2,0, "# SKIP see perl583delta"); |
196 | } else { |
197 | $test =~ /twain/ ? lock($lock) : lock($cond); |
198 | ok(1,1, "$test: obtained initial lock"); |
199 | my $ok; |
200 | my $delta = time(); |
201 | for ($test) { |
202 | $ok=cond_timedwait($cond, time() + $to), last if /simple/; |
203 | $ok=cond_timedwait($cond, time() + $to, $cond), last if /repeat/; |
204 | $ok=cond_timedwait($cond, time() + $to, $lock), last if /twain/; |
205 | die "$test: unknown test\n"; |
206 | } |
207 | $delta = time() - $delta; |
208 | if (($to < 0) || ($^O eq 'os2')) { |
209 | ok(2, ! defined($ok), "$test: timeout"); |
210 | } else { |
211 | # This is a bit problematic, as scheduling and compute latencies |
212 | # can inject delays in our computation. For now, assume -10/+20% |
213 | # is reasonable |
214 | if (! ok(2, ! defined($ok) && |
215 | ($delta > (0.9 * $to)) && |
216 | ($delta < (1.2 * $to)), |
217 | "$test: timeout")) |
218 | { |
219 | print(STDERR "# Timeout: specified=$to actual=$delta secs.\n"); |
220 | } |
221 | } |
222 | } |
223 | } |
224 | |
225 | } # -- SYNCH_SHARED block |
226 | |
227 | |
228 | # same as above, but with references to lock and cond vars |
229 | |
230 | SYNCH_REFS: { |
231 | my $test : shared; # simple|repeat|twain |
232 | |
233 | my $true_cond; share($true_cond); |
234 | my $true_lock; share($true_lock); |
235 | |
236 | my $cond = \$true_cond; |
237 | my $lock = \$true_lock; |
238 | |
239 | ok(1, 1, "Synchronization reference tests preparation"); |
240 | $Base += 1; |
241 | |
242 | sub signaller2 { |
243 | ok(2,1,"$test: child before lock"); |
244 | $test =~ /twain/ ? lock($lock) : lock($cond); |
245 | ok(3,1,"$test: child obtained lock"); |
246 | if ($test =~ 'twain') { |
247 | no warnings 'threads'; # lock var != cond var, so disable warnings |
248 | cond_signal($cond); |
249 | } else { |
250 | cond_signal($cond); |
251 | } |
252 | ok(4,1,"$test: child signalled condition"); |
253 | } |
254 | |
255 | # - TEST cond_timedwait success |
256 | |
257 | forko( sub { |
258 | foreach (@wait_how) { |
259 | $test = "cond_timedwait [$_]"; |
260 | threads->create(\&ctw2, 0.05)->join; |
261 | $Base += 6; |
262 | } |
263 | }, 6*@wait_how, 5); |
264 | |
265 | sub ctw2($) { |
266 | my $to = shift; |
267 | my $thr; |
268 | |
269 | { # -- begin lock scope; which lock to obtain? |
270 | $test =~ /twain/ ? lock($lock) : lock($cond); |
271 | ok(1,1, "$test: obtained initial lock"); |
272 | |
273 | $thr = threads->create(\&signaller2); |
274 | my $ok = 0; |
275 | for ($test) { |
276 | $ok=cond_timedwait($cond, time() + $to), last if /simple/; |
277 | $ok=cond_timedwait($cond, time() + $to, $cond), last if /repeat/; |
278 | $ok=cond_timedwait($cond, time() + $to, $lock), last if /twain/; |
279 | die "$test: unknown test\n"; |
280 | } |
281 | ok(5,$ok, "$test: condition obtained"); |
282 | } # -- end lock scope |
283 | |
284 | $thr->join; |
285 | ok(6,1, "$test: join completed"); |
286 | } |
287 | |
288 | # - TEST cond_timedwait timeout |
289 | |
290 | forko( sub { |
291 | foreach (@wait_how) { |
292 | $test = "cond_timedwait pause, timeout [$_]"; |
293 | threads->create(\&ctw_fail2, 0.3)->join; |
294 | $Base += 2; |
295 | } |
296 | }, 2*@wait_how, 5); |
297 | |
298 | forko( sub { |
299 | foreach (@wait_how) { |
300 | $test = "cond_timedwait instant timeout [$_]"; |
301 | threads->create(\&ctw_fail2, -0.60)->join; |
302 | $Base += 2; |
303 | } |
304 | }, 2*@wait_how, 5); |
305 | |
306 | sub ctw_fail2 { |
307 | my $to = shift; |
308 | |
309 | if ($^O eq "hpux" && $Config{osvers} <= 10.20) { |
310 | # The lock obtaining would pass, but the wait will not. |
311 | ok(1,1, "$test: obtained initial lock"); |
312 | ok(2,0, "# SKIP see perl583delta"); |
313 | } else { |
314 | $test =~ /twain/ ? lock($lock) : lock($cond); |
315 | ok(1,1, "$test: obtained initial lock"); |
316 | my $ok; |
317 | my $delta = time(); |
318 | for ($test) { |
319 | $ok=cond_timedwait($cond, time() + $to), last if /simple/; |
320 | $ok=cond_timedwait($cond, time() + $to, $cond), last if /repeat/; |
321 | $ok=cond_timedwait($cond, time() + $to, $lock), last if /twain/; |
322 | die "$test: unknown test\n"; |
323 | } |
324 | $delta = time() - $delta; |
325 | if (($to < 0) || ($^O eq 'os2')) { |
326 | ok(2,!$ok, "$test: timeout"); |
327 | } else { |
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328 | if (ok(2, ! $ok, "$test: timeout")) { |
329 | # Timing tests can be problematic |
330 | if (($delta < (0.9 * $to)) || ($delta > (1.0 + $to))) { |
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331 | print(STDERR "# Timeout: specified=$to actual=$delta secs.\n"); |
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332 | } |
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333 | } |
334 | } |
335 | } |
336 | } |
337 | |
338 | } # -- SYNCH_REFS block |
339 | |
340 | # EOF |