Commit | Line | Data |
88cb3de1 |
1 | #!./perl -w |
2 | |
dcf686c9 |
3 | BEGIN { |
3f2ee006 |
4 | if ($ENV{PERL_CORE}) { |
5 | chdir 't' if -d 't'; |
6 | @INC = '../lib'; |
df2f6354 |
7 | require Config; import Config; |
8 | if (" $Config{'extensions'} " !~ m[ Time/HiRes ]) { |
9 | print "1..0 # Skip -- Perl configured without Time::HiRes module\n"; |
10 | exit 0; |
11 | } |
3f2ee006 |
12 | } |
dcf686c9 |
13 | } |
14 | |
44d3ce20 |
15 | BEGIN { $| = 1; print "1..28\n"; } |
dcf686c9 |
16 | |
17 | END {print "not ok 1\n" unless $loaded;} |
18 | |
19 | use Time::HiRes qw(tv_interval); |
20 | |
21 | $loaded = 1; |
22 | |
23 | print "ok 1\n"; |
24 | |
25 | use strict; |
26 | |
27 | my $have_gettimeofday = defined &Time::HiRes::gettimeofday; |
28 | my $have_usleep = defined &Time::HiRes::usleep; |
44d3ce20 |
29 | my $have_nanosleep = defined &Time::HiRes::nanosleep; |
dcf686c9 |
30 | my $have_ualarm = defined &Time::HiRes::ualarm; |
c9ff6e92 |
31 | my $have_time = defined &Time::HiRes::time; |
dcf686c9 |
32 | |
33 | import Time::HiRes 'gettimeofday' if $have_gettimeofday; |
34 | import Time::HiRes 'usleep' if $have_usleep; |
44d3ce20 |
35 | import Time::HiRes 'nanosleep' if $have_nanosleep; |
dcf686c9 |
36 | import Time::HiRes 'ualarm' if $have_ualarm; |
37 | |
3c72ec00 |
38 | use Config; |
39 | |
690f7c5f |
40 | my $have_alarm = $Config{d_alarm}; |
41 | my $have_fork = $Config{d_fork}; |
42 | my $waitfor = 60; # 10 seconds is normal. |
43 | my $pid; |
44 | |
45 | if ($have_fork) { |
44d3ce20 |
46 | print "# I am process $$, starting the timer process\n"; |
690f7c5f |
47 | if (defined ($pid = fork())) { |
48 | if ($pid == 0) { # We are the kid, set up the timer. |
44d3ce20 |
49 | print "# I am timer process $$\n"; |
690f7c5f |
50 | sleep($waitfor); |
b4c5c611 |
51 | warn "\n$0: overall time allowed for tests (${waitfor}s) exceeded\n"; |
690f7c5f |
52 | print "# Terminating the testing process\n"; |
53 | kill('TERM', getppid()); |
54 | print "# Timer process exiting\n"; |
55 | exit(0); |
56 | } |
57 | } else { |
58 | warn "$0: fork failed: $!\n"; |
59 | } |
60 | } else { |
61 | print "# No timer process\n"; |
62 | } |
63 | |
12724655 |
64 | my $xdefine = ''; |
3f2ee006 |
65 | |
66 | if (open(XDEFINE, "xdefine")) { |
67 | chomp($xdefine = <XDEFINE>); |
68 | close(XDEFINE); |
69 | } |
70 | |
0740bb5b |
71 | # Ideally, we'd like to test that the timers are rather precise. |
72 | # However, if the system is busy, there are no guarantees on how |
73 | # quickly we will return. This limit used to be 10%, but that |
74 | # was occasionally triggered falsely. |
75 | # Try 20%. |
76 | # Another possibility might be to print "ok" if the test completes fine |
77 | # with (say) 10% slosh, "skip - system may have been busy?" if the test |
78 | # completes fine with (say) 30% slosh, and fail otherwise. If you do that, |
79 | # consider changing over to test.pl at the same time. |
80 | # --A.D., Nov 27, 2001 |
81 | my $limit = 0.20; # 20% is acceptable slosh for testing timers |
82 | |
dcf686c9 |
83 | sub skip { |
3f2ee006 |
84 | map { print "ok $_ # skipped\n" } @_; |
dcf686c9 |
85 | } |
86 | |
87 | sub ok { |
88 | my ($n, $result, @info) = @_; |
89 | if ($result) { |
90 | print "ok $n\n"; |
91 | } |
92 | else { |
93 | print "not ok $n\n"; |
94 | print "# @info\n" if @info; |
95 | } |
96 | } |
97 | |
98 | if (!$have_gettimeofday) { |
99 | skip 2..6; |
100 | } |
101 | else { |
102 | my @one = gettimeofday(); |
103 | ok 2, @one == 2, 'gettimeofday returned ', 0+@one, ' args'; |
104 | ok 3, $one[0] > 850_000_000, "@one too small"; |
105 | |
106 | sleep 1; |
107 | |
108 | my @two = gettimeofday(); |
109 | ok 4, ($two[0] > $one[0] || ($two[0] == $one[0] && $two[1] > $one[1])), |
110 | "@two is not greater than @one"; |
111 | |
c9ff6e92 |
112 | my $f = Time::HiRes::time(); |
dcf686c9 |
113 | ok 5, $f > 850_000_000, "$f too small"; |
0740bb5b |
114 | ok 6, $f - $two[0] < 2, "$f - $two[0] >= 2"; |
dcf686c9 |
115 | } |
116 | |
117 | if (!$have_usleep) { |
118 | skip 7..8; |
119 | } |
120 | else { |
121 | my $one = time; |
122 | usleep(10_000); |
123 | my $two = time; |
124 | usleep(10_000); |
125 | my $three = time; |
126 | ok 7, $one == $two || $two == $three, "slept too long, $one $two $three"; |
127 | |
128 | if (!$have_gettimeofday) { |
129 | skip 8; |
130 | } |
131 | else { |
c9ff6e92 |
132 | my $f = Time::HiRes::time(); |
dcf686c9 |
133 | usleep(500_000); |
c9ff6e92 |
134 | my $f2 = Time::HiRes::time(); |
dcf686c9 |
135 | my $d = $f2 - $f; |
0740bb5b |
136 | ok 8, $d > 0.4 && $d < 0.9, "slept $d secs $f to $f2"; |
dcf686c9 |
137 | } |
138 | } |
139 | |
140 | # Two-arg tv_interval() is always available. |
141 | { |
142 | my $f = tv_interval [5, 100_000], [10, 500_000]; |
6cf89afa |
143 | ok 9, abs($f - 5.4) < 0.001, $f; |
dcf686c9 |
144 | } |
145 | |
146 | if (!$have_gettimeofday) { |
147 | skip 10; |
148 | } |
149 | else { |
150 | my $r = [gettimeofday()]; |
151 | my $f = tv_interval $r; |
152 | ok 10, $f < 2, $f; |
153 | } |
154 | |
c9ff6e92 |
155 | if (!$have_usleep || !$have_gettimeofday) { |
dcf686c9 |
156 | skip 11; |
157 | } |
158 | else { |
159 | my $r = [gettimeofday()]; |
dcf686c9 |
160 | Time::HiRes::sleep( 0.5 ); |
161 | my $f = tv_interval $r; |
0740bb5b |
162 | ok 11, $f > 0.4 && $f < 0.9, "slept $f instead of 0.5 secs."; |
dcf686c9 |
163 | } |
164 | |
690f7c5f |
165 | if (!$have_ualarm || !$have_alarm) { |
dcf686c9 |
166 | skip 12..13; |
167 | } |
168 | else { |
169 | my $tick = 0; |
64a7a97c |
170 | local $SIG{ ALRM } = sub { $tick++ }; |
dcf686c9 |
171 | |
64a7a97c |
172 | my $one = time; $tick = 0; ualarm(10_000); while ($tick == 0) { } |
173 | my $two = time; $tick = 0; ualarm(10_000); while ($tick == 0) { } |
dcf686c9 |
174 | my $three = time; |
175 | ok 12, $one == $two || $two == $three, "slept too long, $one $two $three"; |
64a7a97c |
176 | print "# tick = $tick, one = $one, two = $two, three = $three\n"; |
dcf686c9 |
177 | |
64a7a97c |
178 | $tick = 0; ualarm(10_000, 10_000); while ($tick < 3) { } |
dcf686c9 |
179 | ok 13, 1; |
180 | ualarm(0); |
64a7a97c |
181 | print "# tick = $tick, one = $one, two = $two, three = $three\n"; |
dcf686c9 |
182 | } |
183 | |
64a7a97c |
184 | # Did we even get close? |
dcf686c9 |
185 | |
c9ff6e92 |
186 | if (!$have_time) { |
64a7a97c |
187 | skip 14; |
c9ff6e92 |
188 | } else { |
1fbb4de4 |
189 | my ($s, $n, $i) = (0); |
190 | for $i (1 .. 100) { |
456811e8 |
191 | $s += Time::HiRes::time() - time(); |
192 | $n++; |
64cc9c1c |
193 | } |
456811e8 |
194 | # $s should be, at worst, equal to $n |
195 | # (time() may be rounding down, up, or closest) |
196 | ok 14, abs($s) / $n <= 1.0, "Time::HiRes::time() not close to time()"; |
197 | print "# s = $s, n = $n, s/n = ", $s/$n, "\n"; |
dcf686c9 |
198 | } |
199 | |
3f2ee006 |
200 | my $has_ualarm = $Config{d_ualarm}; |
201 | |
202 | $has_ualarm ||= $xdefine =~ /-DHAS_UALARM/; |
203 | |
204 | unless ( defined &Time::HiRes::gettimeofday |
dcf686c9 |
205 | && defined &Time::HiRes::ualarm |
c7f7de79 |
206 | && defined &Time::HiRes::usleep |
3f2ee006 |
207 | && $has_ualarm) { |
dcf686c9 |
208 | for (15..17) { |
3f2ee006 |
209 | print "ok $_ # Skip: no gettimeofday or no ualarm or no usleep\n"; |
dcf686c9 |
210 | } |
211 | } else { |
212 | use Time::HiRes qw (time alarm sleep); |
213 | |
cb203acc |
214 | my ($f, $r, $i, $not, $ok); |
dcf686c9 |
215 | |
dcf686c9 |
216 | $f = time; |
add58217 |
217 | print "# time...$f\n"; |
218 | print "ok 15\n"; |
dcf686c9 |
219 | |
c9ff6e92 |
220 | $r = [Time::HiRes::gettimeofday()]; |
dcf686c9 |
221 | sleep (0.5); |
add58217 |
222 | print "# sleep...", Time::HiRes::tv_interval($r), "\nok 16\n"; |
dcf686c9 |
223 | |
c9ff6e92 |
224 | $r = [Time::HiRes::gettimeofday()]; |
dcf686c9 |
225 | $i = 5; |
226 | $SIG{ALRM} = "tick"; |
6ea166ef |
227 | while ($i > 0) |
dcf686c9 |
228 | { |
0e172911 |
229 | alarm(0.3); |
c7f7de79 |
230 | select (undef, undef, undef, 3); |
231 | my $ival = Time::HiRes::tv_interval ($r); |
232 | print "# Select returned! $i $ival\n"; |
cb203acc |
233 | print "# ", abs($ival/3 - 1), "\n"; |
234 | # Whether select() gets restarted after signals is |
235 | # implementation dependent. If it is restarted, we |
236 | # will get about 3.3 seconds: 3 from the select, 0.3 |
237 | # from the alarm. If this happens, let's just skip |
238 | # this particular test. --jhi |
239 | if (abs($ival/3.3 - 1) < $limit) { |
3f2ee006 |
240 | $ok = "Skip: your select() may get restarted by your SIGALRM (or just retry test)"; |
cb203acc |
241 | undef $not; |
242 | last; |
243 | } |
c7f7de79 |
244 | my $exp = 0.3 * (5 - $i); |
0740bb5b |
245 | # This test is more sensitive, so impose a softer limit. |
cb203acc |
246 | if (abs($ival/$exp - 1) > 3*$limit) { |
0740bb5b |
247 | my $ratio = abs($ival/$exp); |
248 | $not = "while: $exp sleep took $ival ratio $ratio"; |
c7f7de79 |
249 | last; |
250 | } |
cb203acc |
251 | $ok = $i; |
dcf686c9 |
252 | } |
253 | |
254 | sub tick |
255 | { |
dcf686c9 |
256 | $i--; |
c7f7de79 |
257 | my $ival = Time::HiRes::tv_interval ($r); |
258 | print "# Tick! $i $ival\n"; |
259 | my $exp = 0.3 * (5 - $i); |
0740bb5b |
260 | # This test is more sensitive, so impose a softer limit. |
cb203acc |
261 | if (abs($ival/$exp - 1) > 3*$limit) { |
0740bb5b |
262 | my $ratio = abs($ival/$exp); |
263 | $not = "tick: $exp sleep took $ival ratio $ratio"; |
c7f7de79 |
264 | $i = 0; |
265 | } |
dcf686c9 |
266 | } |
c7f7de79 |
267 | |
d0b83b2b |
268 | alarm(0); # can't cancel usig %SIG |
dcf686c9 |
269 | |
cb203acc |
270 | print $not ? "not ok 17 # $not\n" : "ok 17 # $ok\n"; |
dcf686c9 |
271 | } |
272 | |
3f2ee006 |
273 | unless ( defined &Time::HiRes::setitimer |
3c72ec00 |
274 | && defined &Time::HiRes::getitimer |
3f2ee006 |
275 | && eval 'Time::HiRes::ITIMER_VIRTUAL' |
d0b83b2b |
276 | && $Config{d_select} |
277 | && $Config{sig_name} =~ m/\bVTALRM\b/) { |
3c72ec00 |
278 | for (18..19) { |
0e172911 |
279 | print "ok $_ # Skip: no virtual interval timers\n"; |
3c72ec00 |
280 | } |
281 | } else { |
282 | use Time::HiRes qw (setitimer getitimer ITIMER_VIRTUAL); |
283 | |
284 | my $i = 3; |
c9ff6e92 |
285 | my $r = [Time::HiRes::gettimeofday()]; |
3c72ec00 |
286 | |
287 | $SIG{VTALRM} = sub { |
288 | $i ? $i-- : setitimer(ITIMER_VIRTUAL, 0); |
289 | print "# Tick! $i ", Time::HiRes::tv_interval($r), "\n"; |
290 | }; |
291 | |
0e172911 |
292 | print "# setitimer: ", join(" ", setitimer(ITIMER_VIRTUAL, 0.5, 0.4)), "\n"; |
293 | |
0740bb5b |
294 | # Assume interval timer granularity of $limit * 0.5 seconds. Too bold? |
4ed0e2d4 |
295 | my $virt = getitimer(ITIMER_VIRTUAL); |
296 | print "not " unless defined $virt && abs($virt / 0.5) - 1 < $limit; |
0e172911 |
297 | print "ok 18\n"; |
3c72ec00 |
298 | |
299 | print "# getitimer: ", join(" ", getitimer(ITIMER_VIRTUAL)), "\n"; |
300 | |
1c41c9bf |
301 | while (getitimer(ITIMER_VIRTUAL)) { |
3f2ee006 |
302 | my $j; |
303 | for (1..1000) { $j++ } # Can't be unbreakable, must test getitimer(). |
3c72ec00 |
304 | } |
305 | |
306 | print "# getitimer: ", join(" ", getitimer(ITIMER_VIRTUAL)), "\n"; |
307 | |
4ed0e2d4 |
308 | $virt = getitimer(ITIMER_VIRTUAL); |
309 | print "not " unless defined $virt && $virt == 0; |
0e172911 |
310 | print "ok 19\n"; |
311 | |
3c72ec00 |
312 | $SIG{VTALRM} = 'DEFAULT'; |
313 | } |
314 | |
9c735d59 |
315 | if ($have_gettimeofday) { |
316 | my ($t0, $td); |
52d72fba |
317 | |
9c735d59 |
318 | my $sleep = 1.5; # seconds |
9c735d59 |
319 | my $msg; |
320 | |
321 | $t0 = gettimeofday(); |
322 | $a = abs(sleep($sleep) / $sleep - 1.0); |
323 | $td = gettimeofday() - $t0; |
0740bb5b |
324 | my $ratio = 1.0 + $a; |
9c735d59 |
325 | |
0740bb5b |
326 | $msg = "$td went by while sleeping $sleep, ratio $ratio.\n"; |
9c735d59 |
327 | |
328 | if ($td < $sleep * (1 + $limit)) { |
329 | print $a < $limit ? "ok 20 # $msg" : "not ok 20 # $msg"; |
330 | } else { |
331 | print "ok 20 # Skip: $msg"; |
332 | } |
333 | |
334 | $t0 = gettimeofday(); |
335 | $a = abs(usleep($sleep * 1E6) / ($sleep * 1E6) - 1.0); |
336 | $td = gettimeofday() - $t0; |
0740bb5b |
337 | $ratio = 1.0 + $a; |
9c735d59 |
338 | |
0740bb5b |
339 | $msg = "$td went by while sleeping $sleep, ratio $ratio.\n"; |
9c735d59 |
340 | |
341 | if ($td < $sleep * (1 + $limit)) { |
342 | print $a < $limit ? "ok 21 # $msg" : "not ok 21 # $msg"; |
343 | } else { |
344 | print "ok 21 # Skip: $msg"; |
345 | } |
346 | |
347 | } else { |
348 | for (20..21) { |
349 | print "ok $_ # Skip: no gettimeofday\n"; |
350 | } |
351 | } |
52d72fba |
352 | |
44d3ce20 |
353 | if (!$have_nanosleep) { |
354 | skip 22..23; |
355 | } |
356 | else { |
357 | my $one = CORE::time; |
358 | nanosleep(10_000_000); |
359 | my $two = CORE::time; |
360 | nanosleep(10_000_000); |
361 | my $three = CORE::time; |
362 | ok 22, $one == $two || $two == $three, "slept too long, $one $two $three"; |
363 | |
364 | if (!$have_gettimeofday) { |
365 | skip 23; |
366 | } |
367 | else { |
368 | my $f = Time::HiRes::time(); |
369 | nanosleep(500_000_000); |
370 | my $f2 = Time::HiRes::time(); |
371 | my $d = $f2 - $f; |
372 | ok 23, $d > 0.4 && $d < 0.9, "slept $d secs $f to $f2"; |
373 | } |
374 | } |
375 | |
f7916ddb |
376 | eval { sleep(-1) }; |
377 | print $@ =~ /::sleep\(-1\): negative time not invented yet/ ? |
44d3ce20 |
378 | "ok 24\n" : "not ok 24\n"; |
f7916ddb |
379 | |
380 | eval { usleep(-2) }; |
381 | print $@ =~ /::usleep\(-2\): negative time not invented yet/ ? |
44d3ce20 |
382 | "ok 25\n" : "not ok 25\n"; |
f7916ddb |
383 | |
ec77158c |
384 | if ($have_ualarm) { |
c46d5038 |
385 | eval { alarm(-3) }; |
386 | print $@ =~ /::alarm\(-3, 0\): negative time not invented yet/ ? |
44d3ce20 |
387 | "ok 26\n" : "not ok 26\n"; |
c46d5038 |
388 | |
ec77158c |
389 | eval { ualarm(-4) }; |
390 | print $@ =~ /::ualarm\(-4, 0\): negative time not invented yet/ ? |
44d3ce20 |
391 | "ok 27\n" : "not ok 27\n"; |
392 | } else { |
393 | skip 26; |
394 | skip 27; |
395 | } |
396 | |
397 | if ($have_nanosleep) { |
398 | eval { nanosleep(-5) }; |
399 | print $@ =~ /::nanosleep\(-5\): negative time not invented yet/ ? |
400 | "ok 28\n" : "not ok 28\n"; |
ec77158c |
401 | } else { |
44d3ce20 |
402 | skip 28; |
ec77158c |
403 | } |
690f7c5f |
404 | |
405 | if (defined $pid) { |
44d3ce20 |
406 | print "# I am process $$, terminating the timer process $pid\n"; |
690f7c5f |
407 | kill('TERM', $pid); # We are done, the timer can go. |
64a7a97c |
408 | unlink("ktrace.out"); |
690f7c5f |
409 | } |
410 | |