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af84dfb5 GE |
1 | /*************************************************************************** |
2 | * Copyright (C) 2004 by Intra2net AG * | |
3 | * info@intra2net.com * | |
4 | * * | |
5 | ***************************************************************************/ | |
6 | ||
7 | #include <sys/types.h> | |
8 | #include <unistd.h> | |
9 | #include <errno.h> | |
10 | #include <signal.h> | |
11 | #include <stdio.h> | |
4c3662a0 | 12 | #include <time.h> |
af84dfb5 GE |
13 | |
14 | #include <iostream> | |
15 | #include <string> | |
16 | #include <sstream> | |
17 | #include <stdexcept> | |
18 | ||
19 | #include <cppunit/extensions/TestFactoryRegistry.h> | |
20 | #include <cppunit/ui/text/TestRunner.h> | |
21 | #include <cppunit/extensions/HelperMacros.h> | |
22 | ||
23 | #include <socket_client.hxx> | |
24 | #include <socket_server.hxx> | |
25 | ||
26 | #ifdef HAVE_CONFIG_H | |
27 | #include <config.h> | |
28 | #endif | |
29 | ||
30 | using namespace std; | |
31 | using namespace libt2n; | |
32 | using namespace CppUnit; | |
33 | ||
34 | // this is an evil hack to get access to real_write, don't ever do this in an app!!! | |
35 | class real_write_connection: public socket_server_connection | |
36 | { | |
37 | public: | |
38 | void real_write(const std::string& data) | |
39 | { socket_write(data); } | |
40 | }; | |
41 | ||
42 | class test_reconnect : public TestFixture | |
43 | { | |
44 | CPPUNIT_TEST_SUITE(test_reconnect); | |
45 | ||
46 | CPPUNIT_TEST(simple_reconnect); | |
47 | CPPUNIT_TEST(reconnect_with_close); | |
48 | CPPUNIT_TEST(reconnect_buffer_complete); | |
49 | CPPUNIT_TEST(reconnect_buffer_several_complete); | |
50 | CPPUNIT_TEST(reconnect_buffer_no_incomplete1); | |
51 | CPPUNIT_TEST(reconnect_buffer_no_incomplete2); | |
52 | ||
53 | CPPUNIT_TEST_SUITE_END(); | |
54 | ||
b5922184 GE |
55 | pid_t child_pid; |
56 | ||
af84dfb5 GE |
57 | public: |
58 | ||
59 | void setUp() | |
60 | { } | |
61 | ||
62 | void tearDown() | |
b5922184 GE |
63 | { |
64 | // make sure the server-child is dead before the next test runs | |
65 | kill(child_pid,SIGKILL); | |
66 | sleep(1); | |
67 | } | |
af84dfb5 GE |
68 | |
69 | void send_raw_socket(string hello_string, socket_server* ss, int conn_id) | |
70 | { | |
71 | socket_server_connection *ssc=dynamic_cast<socket_server_connection*>(ss->get_connection(conn_id)); | |
72 | ||
73 | // this is an evil hack to get access to real_write, don't ever do this in an app!!! | |
74 | real_write_connection *rwc=(real_write_connection*)ssc; | |
75 | rwc->real_write(hello_string); | |
76 | } | |
77 | ||
78 | void simple_reconnect() | |
79 | { | |
b5922184 | 80 | switch(child_pid=fork()) |
af84dfb5 GE |
81 | { |
82 | case -1: | |
83 | { | |
84 | CPPUNIT_FAIL("fork error"); | |
85 | break; | |
86 | } | |
87 | case 0: | |
88 | // child | |
89 | { | |
441d41fe | 90 | try |
af84dfb5 | 91 | { |
441d41fe | 92 | socket_server ss("./socket"); |
af84dfb5 | 93 | |
441d41fe | 94 | time_t t0 = time(NULL); |
af84dfb5 | 95 | |
441d41fe TJ |
96 | // max 10 sec |
97 | while (time(NULL) < t0 + 10 ) | |
af84dfb5 | 98 | { |
441d41fe TJ |
99 | ss.fill_buffer(1000000); |
100 | ||
101 | string data; | |
102 | unsigned int cid; | |
103 | ||
104 | if(ss.get_packet(data,cid)) | |
105 | { | |
106 | server_connection* con=ss.get_connection(cid); | |
af84dfb5 | 107 | |
441d41fe TJ |
108 | if (data=="QUIT") |
109 | break; | |
af84dfb5 | 110 | |
441d41fe TJ |
111 | if (data=="x") |
112 | con->write(string().insert(0,100,'X')); | |
113 | else | |
114 | con->write(string().insert(0,100,'Y')); | |
115 | } | |
af84dfb5 | 116 | } |
441d41fe TJ |
117 | } catch(...) |
118 | { | |
119 | std::cerr << "exception in child. ignoring\n"; | |
af84dfb5 GE |
120 | } |
121 | ||
122 | // don't call atexit and stuff | |
123 | _exit(0); | |
124 | } | |
125 | ||
126 | default: | |
127 | // parent | |
128 | { | |
129 | // don't kill us on broken pipe | |
130 | signal(SIGPIPE, SIG_IGN); | |
131 | ||
132 | // wait till server is up | |
133 | sleep(1); | |
134 | socket_client_connection sc("./socket"); | |
135 | ||
136 | sc.write("abc"); | |
137 | ||
138 | string data; | |
139 | ||
140 | while (!sc.get_packet(data)) | |
141 | sc.fill_buffer(1000000); | |
142 | ||
143 | sc.reconnect(); | |
144 | ||
145 | sc.write("x"); | |
146 | ||
147 | while (!sc.get_packet(data)) | |
148 | sc.fill_buffer(1000000); | |
149 | ||
150 | CPPUNIT_ASSERT_EQUAL(string().insert(0,100,'X'),data); | |
151 | } | |
152 | } | |
153 | } | |
154 | ||
155 | void reconnect_with_close() | |
156 | { | |
b5922184 | 157 | switch(child_pid=fork()) |
af84dfb5 GE |
158 | { |
159 | case -1: | |
160 | { | |
161 | CPPUNIT_FAIL("fork error"); | |
162 | break; | |
163 | } | |
164 | case 0: | |
165 | // child | |
166 | { | |
441d41fe | 167 | try |
af84dfb5 | 168 | { |
441d41fe | 169 | socket_server ss("./socket"); |
af84dfb5 | 170 | |
441d41fe | 171 | time_t t0 = time(NULL); |
af84dfb5 | 172 | |
441d41fe TJ |
173 | // max 10 sec |
174 | while (time(NULL) < t0 + 10 ) | |
af84dfb5 | 175 | { |
441d41fe | 176 | ss.fill_buffer(1000000); |
af84dfb5 | 177 | |
441d41fe TJ |
178 | string data; |
179 | unsigned int cid; | |
af84dfb5 | 180 | |
441d41fe TJ |
181 | if(ss.get_packet(data,cid)) |
182 | { | |
183 | server_connection* con=ss.get_connection(cid); | |
184 | ||
185 | if (data=="QUIT") | |
186 | break; | |
187 | ||
188 | if (data=="x") | |
189 | con->write(string().insert(0,100,'X')); | |
190 | else | |
191 | con->write(string().insert(0,100,'Y')); | |
192 | } | |
af84dfb5 | 193 | } |
441d41fe TJ |
194 | } catch(...) |
195 | { | |
196 | std::cerr << "exception in child. ignoring\n"; | |
af84dfb5 GE |
197 | } |
198 | ||
199 | // don't call atexit and stuff | |
200 | _exit(0); | |
201 | } | |
202 | ||
203 | default: | |
204 | // parent | |
205 | { | |
206 | // don't kill us on broken pipe | |
207 | signal(SIGPIPE, SIG_IGN); | |
208 | ||
209 | // wait till server is up | |
210 | sleep(1); | |
211 | socket_client_connection sc("./socket"); | |
212 | ||
213 | sc.write("abc"); | |
214 | ||
215 | string data; | |
216 | ||
217 | while (!sc.get_packet(data)) | |
218 | sc.fill_buffer(1000000); | |
219 | ||
220 | sc.close(); | |
221 | ||
222 | // empty buffer | |
223 | sc.get_packet(data); | |
224 | ||
225 | sc.reconnect(); | |
226 | ||
227 | sc.write("x"); | |
228 | ||
229 | while (!sc.get_packet(data)) | |
230 | sc.fill_buffer(1000000); | |
231 | ||
232 | CPPUNIT_ASSERT_EQUAL(string().insert(0,100,'X'),data); | |
233 | } | |
234 | } | |
235 | } | |
236 | ||
237 | void reconnect_buffer_complete() | |
238 | { | |
b5922184 | 239 | switch(child_pid=fork()) |
af84dfb5 GE |
240 | { |
241 | case -1: | |
242 | { | |
243 | CPPUNIT_FAIL("fork error"); | |
244 | break; | |
245 | } | |
246 | case 0: | |
247 | // child | |
248 | { | |
441d41fe | 249 | try |
af84dfb5 | 250 | { |
441d41fe | 251 | socket_server ss("./socket"); |
af84dfb5 | 252 | |
441d41fe | 253 | time_t t0 = time(NULL); |
af84dfb5 | 254 | |
441d41fe TJ |
255 | // max 10 sec |
256 | while (time(NULL) < t0 + 10 ) | |
af84dfb5 | 257 | { |
441d41fe TJ |
258 | ss.fill_buffer(1000000); |
259 | ||
260 | string data; | |
261 | unsigned int cid; | |
262 | ||
263 | if(ss.get_packet(data,cid)) | |
264 | { | |
265 | server_connection* con=ss.get_connection(cid); | |
af84dfb5 | 266 | |
441d41fe TJ |
267 | if (data=="QUIT") |
268 | break; | |
af84dfb5 | 269 | |
441d41fe TJ |
270 | if (data=="x") |
271 | con->write(string().insert(0,100,'X')); | |
272 | } | |
af84dfb5 | 273 | } |
441d41fe TJ |
274 | } catch(...) |
275 | { | |
276 | std::cerr << "exception in child. ignoring\n"; | |
af84dfb5 GE |
277 | } |
278 | ||
279 | // don't call atexit and stuff | |
280 | _exit(0); | |
281 | } | |
282 | ||
283 | default: | |
284 | // parent | |
285 | { | |
286 | // don't kill us on broken pipe | |
287 | signal(SIGPIPE, SIG_IGN); | |
288 | ||
289 | // wait till server is up | |
290 | sleep(1); | |
291 | socket_client_connection sc("./socket"); | |
292 | ||
293 | sc.write("x"); | |
294 | ||
295 | string data; | |
296 | ||
297 | while (!sc.packet_available()) | |
298 | sc.fill_buffer(1000000); | |
299 | ||
300 | sc.reconnect(); | |
301 | ||
302 | CPPUNIT_ASSERT_EQUAL_MESSAGE("packet not there",true,sc.get_packet(data)); | |
303 | ||
304 | CPPUNIT_ASSERT_EQUAL_MESSAGE("data incorrect",string().insert(0,100,'X'),data); | |
305 | } | |
306 | } | |
307 | } | |
308 | ||
309 | void reconnect_buffer_several_complete() | |
310 | { | |
af84dfb5 GE |
311 | const int packets=3; |
312 | ||
b5922184 | 313 | switch(child_pid=fork()) |
af84dfb5 GE |
314 | { |
315 | case -1: | |
316 | { | |
317 | CPPUNIT_FAIL("fork error"); | |
318 | break; | |
319 | } | |
320 | case 0: | |
321 | // child | |
322 | { | |
441d41fe | 323 | try |
af84dfb5 | 324 | { |
441d41fe | 325 | socket_server ss("./socket"); |
af84dfb5 | 326 | |
441d41fe | 327 | time_t t0 = time(NULL); |
af84dfb5 | 328 | |
441d41fe TJ |
329 | // max 10 sec |
330 | while (time(NULL) < t0 + 10 ) | |
af84dfb5 | 331 | { |
441d41fe | 332 | ss.fill_buffer(1000000); |
af84dfb5 | 333 | |
441d41fe TJ |
334 | string data; |
335 | unsigned int cid; | |
af84dfb5 | 336 | |
441d41fe | 337 | if(ss.get_packet(data,cid)) |
af84dfb5 | 338 | { |
441d41fe TJ |
339 | server_connection* con=ss.get_connection(cid); |
340 | ||
341 | if (data=="QUIT") | |
342 | break; | |
343 | ||
344 | if (data=="x") | |
345 | { | |
346 | for (int i=0; i<packets; i++) | |
347 | con->write(string().insert(0,100,'X')); | |
348 | } | |
af84dfb5 GE |
349 | } |
350 | } | |
441d41fe TJ |
351 | } catch(...) |
352 | { | |
353 | std::cerr << "exception in child. ignoring\n"; | |
af84dfb5 GE |
354 | } |
355 | ||
356 | // don't call atexit and stuff | |
357 | _exit(0); | |
358 | } | |
359 | ||
360 | default: | |
361 | // parent | |
362 | { | |
363 | // don't kill us on broken pipe | |
364 | signal(SIGPIPE, SIG_IGN); | |
365 | ||
366 | // wait till server is up | |
367 | sleep(1); | |
368 | socket_client_connection sc("./socket"); | |
369 | ||
370 | sc.write("x"); | |
371 | ||
372 | // retrieve packets for 3 seconds | |
373 | time_t t0 = time(NULL); | |
374 | ||
375 | // max 3 sec | |
376 | while (time(NULL) < t0 + 3 ) | |
377 | sc.fill_buffer(1000000); | |
378 | ||
379 | // we now should have packets complete packets in the buffer | |
380 | ||
381 | sc.reconnect(); | |
382 | ||
383 | // are these packets still there? | |
384 | ||
385 | for (int i=0; i < packets; i++) | |
386 | { | |
387 | string data; | |
388 | ||
389 | ostringstream os; | |
390 | os << "packet " << i << " not there"; | |
391 | ||
392 | CPPUNIT_ASSERT_EQUAL_MESSAGE(os.str(),true,sc.get_packet(data)); | |
393 | ||
394 | os.str(""); | |
395 | os << "packet " << i << " incorrect"; | |
396 | ||
397 | CPPUNIT_ASSERT_EQUAL_MESSAGE(os.str(),string().insert(0,100,'X'),data); | |
398 | } | |
399 | } | |
400 | } | |
401 | } | |
402 | ||
403 | void reconnect_buffer_no_incomplete1() | |
404 | { | |
b5922184 | 405 | switch(child_pid=fork()) |
af84dfb5 GE |
406 | { |
407 | case -1: | |
408 | { | |
409 | CPPUNIT_FAIL("fork error"); | |
410 | break; | |
411 | } | |
412 | case 0: | |
413 | // child | |
414 | { | |
441d41fe | 415 | try |
af84dfb5 | 416 | { |
441d41fe | 417 | socket_server ss("./socket"); |
af84dfb5 | 418 | |
441d41fe | 419 | time_t t0 = time(NULL); |
af84dfb5 | 420 | |
441d41fe TJ |
421 | // max 10 sec |
422 | while (time(NULL) < t0 + 10 ) | |
af84dfb5 | 423 | { |
441d41fe | 424 | ss.fill_buffer(1000000); |
af84dfb5 | 425 | |
441d41fe TJ |
426 | string data; |
427 | unsigned int cid; | |
af84dfb5 | 428 | |
441d41fe | 429 | if(ss.get_packet(data,cid)) |
af84dfb5 | 430 | { |
441d41fe TJ |
431 | server_connection* con=ss.get_connection(cid); |
432 | ||
433 | if (data=="QUIT") | |
434 | break; | |
435 | ||
436 | if (data=="x") | |
437 | { | |
438 | con->write(string().insert(0,100,'X')); | |
439 | send_raw_socket("aaaab",&ss,cid); | |
440 | } | |
af84dfb5 GE |
441 | } |
442 | } | |
441d41fe TJ |
443 | } catch(...) |
444 | { | |
445 | std::cerr << "exception in child. ignoring\n"; | |
af84dfb5 GE |
446 | } |
447 | ||
448 | // don't call atexit and stuff | |
449 | _exit(0); | |
450 | } | |
451 | ||
452 | default: | |
453 | // parent | |
454 | { | |
455 | // don't kill us on broken pipe | |
456 | signal(SIGPIPE, SIG_IGN); | |
457 | ||
458 | // wait till server is up | |
459 | sleep(1); | |
460 | socket_client_connection sc("./socket"); | |
461 | ||
462 | sc.write("x"); | |
463 | ||
464 | // retrieve packets for 3 seconds | |
465 | time_t t0 = time(NULL); | |
466 | ||
467 | // max 3 sec | |
468 | while (time(NULL) < t0 + 3 ) | |
469 | sc.fill_buffer(1000000); | |
470 | ||
471 | // we now should have one complete packet and some stuff in the buffer | |
472 | ||
473 | string data; | |
474 | sc.get_packet(data); | |
475 | ||
476 | CPPUNIT_ASSERT_EQUAL_MESSAGE("no incomplete packet",true,(sc.peek_packet(data))>0); | |
477 | ||
478 | sc.reconnect(); | |
479 | ||
480 | CPPUNIT_ASSERT_EQUAL_MESSAGE("incomplete packet not removed",0,(int)sc.peek_packet(data)); | |
481 | } | |
482 | } | |
483 | } | |
484 | ||
485 | void reconnect_buffer_no_incomplete2() | |
486 | { | |
b5922184 | 487 | switch(child_pid=fork()) |
af84dfb5 GE |
488 | { |
489 | case -1: | |
490 | { | |
491 | CPPUNIT_FAIL("fork error"); | |
492 | break; | |
493 | } | |
494 | case 0: | |
495 | // child | |
496 | { | |
441d41fe | 497 | try |
af84dfb5 | 498 | { |
441d41fe | 499 | socket_server ss("./socket"); |
af84dfb5 | 500 | |
441d41fe | 501 | time_t t0 = time(NULL); |
af84dfb5 | 502 | |
441d41fe TJ |
503 | // max 10 sec |
504 | while (time(NULL) < t0 + 10 ) | |
af84dfb5 | 505 | { |
441d41fe | 506 | ss.fill_buffer(1000000); |
af84dfb5 | 507 | |
441d41fe TJ |
508 | string data; |
509 | unsigned int cid; | |
af84dfb5 | 510 | |
441d41fe | 511 | if(ss.get_packet(data,cid)) |
af84dfb5 | 512 | { |
441d41fe TJ |
513 | server_connection* con=ss.get_connection(cid); |
514 | ||
515 | if (data=="QUIT") | |
516 | break; | |
af84dfb5 | 517 | |
441d41fe TJ |
518 | if (data=="x") |
519 | { | |
520 | con->write(string().insert(0,100,'X')); | |
521 | ||
522 | string blob=string().insert(0,100,'Y'); | |
af84dfb5 | 523 | |
441d41fe TJ |
524 | // one byte will be missing... |
525 | int size=blob.size()+1; | |
526 | char sizetransfer[sizeof(int)+1]; | |
527 | memcpy(sizetransfer,(void*)&size,sizeof(int)); | |
528 | sizetransfer[sizeof(int)+1]=0; | |
af84dfb5 | 529 | |
441d41fe | 530 | string packet=string(sizetransfer)+blob; |
af84dfb5 | 531 | |
441d41fe TJ |
532 | send_raw_socket(packet,&ss,cid); |
533 | } | |
af84dfb5 GE |
534 | } |
535 | } | |
441d41fe TJ |
536 | } catch(...) |
537 | { | |
538 | std::cerr << "exception in child. ignoring\n"; | |
af84dfb5 GE |
539 | } |
540 | ||
541 | // don't call atexit and stuff | |
542 | _exit(0); | |
543 | } | |
544 | ||
545 | default: | |
546 | // parent | |
547 | { | |
548 | // don't kill us on broken pipe | |
549 | signal(SIGPIPE, SIG_IGN); | |
550 | ||
551 | // wait till server is up | |
552 | sleep(1); | |
553 | socket_client_connection sc("./socket"); | |
554 | ||
555 | sc.write("x"); | |
556 | ||
557 | // retrieve packets for 3 seconds | |
558 | time_t t0 = time(NULL); | |
559 | ||
560 | // max 3 sec | |
561 | while (time(NULL) < t0 + 3 ) | |
562 | sc.fill_buffer(1000000); | |
563 | ||
564 | // we now should have one complete packet and some stuff in the buffer | |
565 | ||
566 | sc.reconnect(); | |
567 | ||
568 | string data; | |
569 | ||
570 | CPPUNIT_ASSERT_EQUAL_MESSAGE("packet not there",true,sc.get_packet(data)); | |
571 | CPPUNIT_ASSERT_EQUAL_MESSAGE("data incorrect",string().insert(0,100,'X'),data); | |
572 | ||
573 | CPPUNIT_ASSERT_EQUAL_MESSAGE("incomplete packet not removed",0,(int)sc.peek_packet(data)); | |
574 | } | |
575 | } | |
576 | } | |
577 | ||
578 | }; | |
579 | ||
580 | CPPUNIT_TEST_SUITE_REGISTRATION(test_reconnect); |