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1 | #!./perl |
2 | |
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3 | # tests for both real and emulated fork() |
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4 | |
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5 | BEGIN { |
6 | chdir 't' if -d 't'; |
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7 | @INC = '../lib'; |
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8 | require Config; import Config; |
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9 | unless ($Config{'d_fork'} |
10 | or ($^O eq 'MSWin32' and $Config{useithreads} |
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11 | and $Config{ccflags} =~ /-DPERL_IMPLICIT_SYS/ |
12 | # and !defined $Config{'useperlio'} |
13 | )) |
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14 | { |
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15 | print "1..0 # Skip: no fork\n"; |
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16 | exit 0; |
17 | } |
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18 | $ENV{PERL5LIB} = "../lib"; |
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19 | } |
20 | |
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21 | if ($^O eq 'mpeix') { |
22 | print "1..0 # Skip: fork/status problems on MPE/iX\n"; |
23 | exit 0; |
24 | } |
25 | |
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26 | $|=1; |
27 | |
28 | undef $/; |
29 | @prgs = split "\n########\n", <DATA>; |
30 | print "1..", scalar @prgs, "\n"; |
31 | |
32 | $tmpfile = "forktmp000"; |
33 | 1 while -f ++$tmpfile; |
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34 | END { close TEST; unlink $tmpfile if $tmpfile; } |
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35 | |
36 | $CAT = (($^O eq 'MSWin32') ? '.\perl -e "print <>"' : 'cat'); |
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37 | |
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38 | for (@prgs){ |
39 | my $switch; |
40 | if (s/^\s*(-\w.*)//){ |
41 | $switch = $1; |
42 | } |
43 | my($prog,$expected) = split(/\nEXPECT\n/, $_); |
44 | $expected =~ s/\n+$//; |
45 | # results can be in any order, so sort 'em |
46 | my @expected = sort split /\n/, $expected; |
47 | open TEST, ">$tmpfile" or die "Cannot open $tmpfile: $!"; |
48 | print TEST $prog, "\n"; |
49 | close TEST or die "Cannot close $tmpfile: $!"; |
50 | my $results; |
51 | if ($^O eq 'MSWin32') { |
52 | $results = `.\\perl -I../lib $switch $tmpfile 2>&1`; |
53 | } |
54 | else { |
55 | $results = `./perl $switch $tmpfile 2>&1`; |
56 | } |
57 | $status = $?; |
58 | $results =~ s/\n+$//; |
59 | $results =~ s/at\s+forktmp\d+\s+line/at - line/g; |
60 | $results =~ s/of\s+forktmp\d+\s+aborted/of - aborted/g; |
61 | # bison says 'parse error' instead of 'syntax error', |
62 | # various yaccs may or may not capitalize 'syntax'. |
63 | $results =~ s/^(syntax|parse) error/syntax error/mig; |
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64 | $results =~ s/^\n*Process terminated by SIG\w+\n?//mg |
65 | if $^O eq 'os2'; |
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66 | my @results = sort split /\n/, $results; |
67 | if ( "@results" ne "@expected" ) { |
68 | print STDERR "PROG: $switch\n$prog\n"; |
69 | print STDERR "EXPECTED:\n$expected\n"; |
70 | print STDERR "GOT:\n$results\n"; |
71 | print "not "; |
72 | } |
73 | print "ok ", ++$i, "\n"; |
74 | } |
75 | |
76 | __END__ |
77 | $| = 1; |
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78 | if ($cid = fork) { |
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79 | sleep 1; |
80 | if ($result = (kill 9, $cid)) { |
81 | print "ok 2\n"; |
82 | } |
83 | else { |
84 | print "not ok 2 $result\n"; |
85 | } |
86 | sleep 1 if $^O eq 'MSWin32'; # avoid WinNT race bug |
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87 | } |
88 | else { |
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89 | print "ok 1\n"; |
90 | sleep 10; |
91 | } |
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92 | EXPECT |
93 | ok 1 |
94 | ok 2 |
95 | ######## |
96 | $| = 1; |
97 | sub forkit { |
98 | print "iteration $i start\n"; |
99 | my $x = fork; |
100 | if (defined $x) { |
101 | if ($x) { |
102 | print "iteration $i parent\n"; |
103 | } |
104 | else { |
105 | print "iteration $i child\n"; |
106 | } |
107 | } |
108 | else { |
109 | print "pid $$ failed to fork\n"; |
110 | } |
111 | } |
112 | while ($i++ < 3) { do { forkit(); }; } |
113 | EXPECT |
114 | iteration 1 start |
115 | iteration 1 parent |
116 | iteration 1 child |
117 | iteration 2 start |
118 | iteration 2 parent |
119 | iteration 2 child |
120 | iteration 2 start |
121 | iteration 2 parent |
122 | iteration 2 child |
123 | iteration 3 start |
124 | iteration 3 parent |
125 | iteration 3 child |
126 | iteration 3 start |
127 | iteration 3 parent |
128 | iteration 3 child |
129 | iteration 3 start |
130 | iteration 3 parent |
131 | iteration 3 child |
132 | iteration 3 start |
133 | iteration 3 parent |
134 | iteration 3 child |
135 | ######## |
136 | $| = 1; |
137 | fork() |
138 | ? (print("parent\n"),sleep(1)) |
139 | : (print("child\n"),exit) ; |
140 | EXPECT |
141 | parent |
142 | child |
143 | ######## |
144 | $| = 1; |
145 | fork() |
146 | ? (print("parent\n"),exit) |
147 | : (print("child\n"),sleep(1)) ; |
148 | EXPECT |
149 | parent |
150 | child |
151 | ######## |
152 | $| = 1; |
153 | @a = (1..3); |
154 | for (@a) { |
155 | if (fork) { |
156 | print "parent $_\n"; |
157 | $_ = "[$_]"; |
158 | } |
159 | else { |
160 | print "child $_\n"; |
161 | $_ = "-$_-"; |
162 | } |
163 | } |
164 | print "@a\n"; |
165 | EXPECT |
166 | parent 1 |
167 | child 1 |
168 | parent 2 |
169 | child 2 |
170 | parent 2 |
171 | child 2 |
172 | parent 3 |
173 | child 3 |
174 | parent 3 |
175 | child 3 |
176 | parent 3 |
177 | child 3 |
178 | parent 3 |
179 | child 3 |
180 | [1] [2] [3] |
181 | -1- [2] [3] |
182 | [1] -2- [3] |
183 | [1] [2] -3- |
184 | -1- -2- [3] |
185 | -1- [2] -3- |
186 | [1] -2- -3- |
187 | -1- -2- -3- |
188 | ######## |
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189 | $| = 1; |
190 | foreach my $c (1,2,3) { |
191 | if (fork) { |
192 | print "parent $c\n"; |
193 | } |
194 | else { |
195 | print "child $c\n"; |
196 | exit; |
197 | } |
198 | } |
199 | while (wait() != -1) { print "waited\n" } |
200 | EXPECT |
201 | child 1 |
202 | child 2 |
203 | child 3 |
204 | parent 1 |
205 | parent 2 |
206 | parent 3 |
207 | waited |
208 | waited |
209 | waited |
210 | ######## |
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211 | use Config; |
212 | $| = 1; |
213 | $\ = "\n"; |
214 | fork() |
215 | ? print($Config{osname} eq $^O) |
216 | : print($Config{osname} eq $^O) ; |
217 | EXPECT |
218 | 1 |
219 | 1 |
220 | ######## |
221 | $| = 1; |
222 | $\ = "\n"; |
223 | fork() |
224 | ? do { require Config; print($Config::Config{osname} eq $^O); } |
225 | : do { require Config; print($Config::Config{osname} eq $^O); } |
226 | EXPECT |
227 | 1 |
228 | 1 |
229 | ######## |
230 | $| = 1; |
231 | use Cwd; |
232 | $\ = "\n"; |
233 | my $dir; |
234 | if (fork) { |
235 | $dir = "f$$.tst"; |
236 | mkdir $dir, 0755; |
237 | chdir $dir; |
238 | print cwd() =~ /\Q$dir/i ? "ok 1 parent" : "not ok 1 parent"; |
239 | chdir ".."; |
240 | rmdir $dir; |
241 | } |
242 | else { |
243 | sleep 2; |
244 | $dir = "f$$.tst"; |
245 | mkdir $dir, 0755; |
246 | chdir $dir; |
247 | print cwd() =~ /\Q$dir/i ? "ok 1 child" : "not ok 1 child"; |
248 | chdir ".."; |
249 | rmdir $dir; |
250 | } |
251 | EXPECT |
252 | ok 1 parent |
253 | ok 1 child |
254 | ######## |
255 | $| = 1; |
256 | $\ = "\n"; |
257 | my $getenv; |
258 | if ($^O eq 'MSWin32') { |
259 | $getenv = qq[$^X -e "print \$ENV{TST}"]; |
260 | } |
261 | else { |
262 | $getenv = qq[$^X -e 'print \$ENV{TST}']; |
263 | } |
35424068 |
264 | $ENV{TST} = 'foo'; |
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265 | if (fork) { |
266 | sleep 1; |
35424068 |
267 | print "parent before: " . `$getenv`; |
268 | $ENV{TST} = 'bar'; |
269 | print "parent after: " . `$getenv`; |
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270 | } |
271 | else { |
35424068 |
272 | print "child before: " . `$getenv`; |
273 | $ENV{TST} = 'baz'; |
274 | print "child after: " . `$getenv`; |
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275 | } |
276 | EXPECT |
35424068 |
277 | child before: foo |
278 | child after: baz |
279 | parent before: foo |
280 | parent after: bar |
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281 | ######## |
282 | $| = 1; |
283 | $\ = "\n"; |
284 | if ($pid = fork) { |
285 | waitpid($pid,0); |
286 | print "parent got $?" |
287 | } |
288 | else { |
289 | exit(42); |
290 | } |
291 | EXPECT |
292 | parent got 10752 |
293 | ######## |
294 | $| = 1; |
295 | $\ = "\n"; |
296 | my $echo = 'echo'; |
297 | if ($pid = fork) { |
298 | waitpid($pid,0); |
299 | print "parent got $?" |
300 | } |
301 | else { |
302 | exec("$echo foo"); |
303 | } |
304 | EXPECT |
305 | foo |
306 | parent got 0 |
307 | ######## |
308 | if (fork) { |
309 | die "parent died"; |
310 | } |
311 | else { |
312 | die "child died"; |
313 | } |
314 | EXPECT |
315 | parent died at - line 2. |
316 | child died at - line 5. |
317 | ######## |
318 | if ($pid = fork) { |
319 | eval { die "parent died" }; |
320 | print $@; |
321 | } |
322 | else { |
323 | eval { die "child died" }; |
324 | print $@; |
325 | } |
326 | EXPECT |
327 | parent died at - line 2. |
328 | child died at - line 6. |
329 | ######## |
330 | if (eval q{$pid = fork}) { |
331 | eval q{ die "parent died" }; |
332 | print $@; |
333 | } |
334 | else { |
335 | eval q{ die "child died" }; |
336 | print $@; |
337 | } |
338 | EXPECT |
339 | parent died at (eval 2) line 1. |
340 | child died at (eval 2) line 1. |
341 | ######## |
342 | BEGIN { |
343 | $| = 1; |
344 | fork and exit; |
345 | print "inner\n"; |
346 | } |
347 | # XXX In emulated fork(), the child will not execute anything after |
348 | # the BEGIN block, due to difficulties in recreating the parse stacks |
349 | # and restarting yyparse() midstream in the child. This can potentially |
350 | # be overcome by treating what's after the BEGIN{} as a brand new parse. |
351 | #print "outer\n" |
352 | EXPECT |
353 | inner |
030866aa |
354 | ######## |
355 | sub pipe_to_fork ($$) { |
356 | my $parent = shift; |
357 | my $child = shift; |
358 | pipe($child, $parent) or die; |
359 | my $pid = fork(); |
360 | die "fork() failed: $!" unless defined $pid; |
361 | close($pid ? $child : $parent); |
362 | $pid; |
363 | } |
364 | |
365 | if (pipe_to_fork('PARENT','CHILD')) { |
366 | # parent |
367 | print PARENT "pipe_to_fork\n"; |
368 | close PARENT; |
369 | } |
370 | else { |
371 | # child |
372 | while (<CHILD>) { print; } |
373 | close CHILD; |
374 | exit; |
375 | } |
376 | |
377 | sub pipe_from_fork ($$) { |
378 | my $parent = shift; |
379 | my $child = shift; |
380 | pipe($parent, $child) or die; |
381 | my $pid = fork(); |
382 | die "fork() failed: $!" unless defined $pid; |
383 | close($pid ? $child : $parent); |
384 | $pid; |
385 | } |
386 | |
387 | if (pipe_from_fork('PARENT','CHILD')) { |
388 | # parent |
389 | while (<PARENT>) { print; } |
390 | close PARENT; |
391 | } |
392 | else { |
393 | # child |
394 | print CHILD "pipe_from_fork\n"; |
395 | close CHILD; |
396 | exit; |
397 | } |
398 | EXPECT |
399 | pipe_from_fork |
400 | pipe_to_fork |
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401 | ######## |
10d51319 |
402 | $|=1; |
68a29c53 |
403 | if ($pid = fork()) { |
404 | print "forked first kid\n"; |
405 | print "waitpid() returned ok\n" if waitpid($pid,0) == $pid; |
406 | } |
407 | else { |
408 | print "first child\n"; |
409 | exit(0); |
410 | } |
411 | if ($pid = fork()) { |
412 | print "forked second kid\n"; |
413 | print "wait() returned ok\n" if wait() == $pid; |
414 | } |
415 | else { |
416 | print "second child\n"; |
417 | exit(0); |
418 | } |
419 | EXPECT |
420 | forked first kid |
421 | first child |
422 | waitpid() returned ok |
423 | forked second kid |
424 | second child |
425 | wait() returned ok |