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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 | { | |
90 | socket_server ss("./socket"); | |
91 | ||
92 | time_t t0 = time(NULL); | |
93 | ||
94 | // max 10 sec | |
95 | while (time(NULL) < t0 + 10 ) | |
96 | { | |
97 | ss.fill_buffer(1000000); | |
98 | ||
99 | string data; | |
100 | unsigned int cid; | |
101 | ||
102 | if(ss.get_packet(data,cid)) | |
103 | { | |
104 | server_connection* con=ss.get_connection(cid); | |
105 | ||
106 | if (data=="QUIT") | |
107 | break; | |
108 | ||
109 | if (data=="x") | |
110 | con->write(string().insert(0,100,'X')); | |
111 | else | |
112 | con->write(string().insert(0,100,'Y')); | |
113 | } | |
114 | } | |
115 | ||
116 | // don't call atexit and stuff | |
117 | _exit(0); | |
118 | } | |
119 | ||
120 | default: | |
121 | // parent | |
122 | { | |
123 | // don't kill us on broken pipe | |
124 | signal(SIGPIPE, SIG_IGN); | |
125 | ||
126 | // wait till server is up | |
127 | sleep(1); | |
128 | socket_client_connection sc("./socket"); | |
129 | ||
130 | sc.write("abc"); | |
131 | ||
132 | string data; | |
133 | ||
134 | while (!sc.get_packet(data)) | |
135 | sc.fill_buffer(1000000); | |
136 | ||
137 | sc.reconnect(); | |
138 | ||
139 | sc.write("x"); | |
140 | ||
141 | while (!sc.get_packet(data)) | |
142 | sc.fill_buffer(1000000); | |
143 | ||
144 | CPPUNIT_ASSERT_EQUAL(string().insert(0,100,'X'),data); | |
145 | } | |
146 | } | |
147 | } | |
148 | ||
149 | void reconnect_with_close() | |
150 | { | |
b5922184 | 151 | switch(child_pid=fork()) |
af84dfb5 GE |
152 | { |
153 | case -1: | |
154 | { | |
155 | CPPUNIT_FAIL("fork error"); | |
156 | break; | |
157 | } | |
158 | case 0: | |
159 | // child | |
160 | { | |
161 | socket_server ss("./socket"); | |
162 | ||
163 | time_t t0 = time(NULL); | |
164 | ||
165 | // max 10 sec | |
166 | while (time(NULL) < t0 + 10 ) | |
167 | { | |
168 | ss.fill_buffer(1000000); | |
169 | ||
170 | string data; | |
171 | unsigned int cid; | |
172 | ||
173 | if(ss.get_packet(data,cid)) | |
174 | { | |
175 | server_connection* con=ss.get_connection(cid); | |
176 | ||
177 | if (data=="QUIT") | |
178 | break; | |
179 | ||
180 | if (data=="x") | |
181 | con->write(string().insert(0,100,'X')); | |
182 | else | |
183 | con->write(string().insert(0,100,'Y')); | |
184 | } | |
185 | } | |
186 | ||
187 | // don't call atexit and stuff | |
188 | _exit(0); | |
189 | } | |
190 | ||
191 | default: | |
192 | // parent | |
193 | { | |
194 | // don't kill us on broken pipe | |
195 | signal(SIGPIPE, SIG_IGN); | |
196 | ||
197 | // wait till server is up | |
198 | sleep(1); | |
199 | socket_client_connection sc("./socket"); | |
200 | ||
201 | sc.write("abc"); | |
202 | ||
203 | string data; | |
204 | ||
205 | while (!sc.get_packet(data)) | |
206 | sc.fill_buffer(1000000); | |
207 | ||
208 | sc.close(); | |
209 | ||
210 | // empty buffer | |
211 | sc.get_packet(data); | |
212 | ||
213 | sc.reconnect(); | |
214 | ||
215 | sc.write("x"); | |
216 | ||
217 | while (!sc.get_packet(data)) | |
218 | sc.fill_buffer(1000000); | |
219 | ||
220 | CPPUNIT_ASSERT_EQUAL(string().insert(0,100,'X'),data); | |
221 | } | |
222 | } | |
223 | } | |
224 | ||
225 | void reconnect_buffer_complete() | |
226 | { | |
b5922184 | 227 | switch(child_pid=fork()) |
af84dfb5 GE |
228 | { |
229 | case -1: | |
230 | { | |
231 | CPPUNIT_FAIL("fork error"); | |
232 | break; | |
233 | } | |
234 | case 0: | |
235 | // child | |
236 | { | |
237 | socket_server ss("./socket"); | |
238 | ||
239 | time_t t0 = time(NULL); | |
240 | ||
241 | // max 10 sec | |
242 | while (time(NULL) < t0 + 10 ) | |
243 | { | |
244 | ss.fill_buffer(1000000); | |
245 | ||
246 | string data; | |
247 | unsigned int cid; | |
248 | ||
249 | if(ss.get_packet(data,cid)) | |
250 | { | |
251 | server_connection* con=ss.get_connection(cid); | |
252 | ||
253 | if (data=="QUIT") | |
254 | break; | |
255 | ||
256 | if (data=="x") | |
257 | con->write(string().insert(0,100,'X')); | |
258 | } | |
259 | } | |
260 | ||
261 | // don't call atexit and stuff | |
262 | _exit(0); | |
263 | } | |
264 | ||
265 | default: | |
266 | // parent | |
267 | { | |
268 | // don't kill us on broken pipe | |
269 | signal(SIGPIPE, SIG_IGN); | |
270 | ||
271 | // wait till server is up | |
272 | sleep(1); | |
273 | socket_client_connection sc("./socket"); | |
274 | ||
275 | sc.write("x"); | |
276 | ||
277 | string data; | |
278 | ||
279 | while (!sc.packet_available()) | |
280 | sc.fill_buffer(1000000); | |
281 | ||
282 | sc.reconnect(); | |
283 | ||
284 | CPPUNIT_ASSERT_EQUAL_MESSAGE("packet not there",true,sc.get_packet(data)); | |
285 | ||
286 | CPPUNIT_ASSERT_EQUAL_MESSAGE("data incorrect",string().insert(0,100,'X'),data); | |
287 | } | |
288 | } | |
289 | } | |
290 | ||
291 | void reconnect_buffer_several_complete() | |
292 | { | |
af84dfb5 GE |
293 | const int packets=3; |
294 | ||
b5922184 | 295 | switch(child_pid=fork()) |
af84dfb5 GE |
296 | { |
297 | case -1: | |
298 | { | |
299 | CPPUNIT_FAIL("fork error"); | |
300 | break; | |
301 | } | |
302 | case 0: | |
303 | // child | |
304 | { | |
305 | socket_server ss("./socket"); | |
306 | ||
307 | time_t t0 = time(NULL); | |
308 | ||
309 | // max 10 sec | |
310 | while (time(NULL) < t0 + 10 ) | |
311 | { | |
312 | ss.fill_buffer(1000000); | |
313 | ||
314 | string data; | |
315 | unsigned int cid; | |
316 | ||
317 | if(ss.get_packet(data,cid)) | |
318 | { | |
319 | server_connection* con=ss.get_connection(cid); | |
320 | ||
321 | if (data=="QUIT") | |
322 | break; | |
323 | ||
324 | if (data=="x") | |
325 | { | |
326 | for (int i=0; i<packets; i++) | |
327 | con->write(string().insert(0,100,'X')); | |
328 | } | |
329 | } | |
330 | } | |
331 | ||
332 | // don't call atexit and stuff | |
333 | _exit(0); | |
334 | } | |
335 | ||
336 | default: | |
337 | // parent | |
338 | { | |
339 | // don't kill us on broken pipe | |
340 | signal(SIGPIPE, SIG_IGN); | |
341 | ||
342 | // wait till server is up | |
343 | sleep(1); | |
344 | socket_client_connection sc("./socket"); | |
345 | ||
346 | sc.write("x"); | |
347 | ||
348 | // retrieve packets for 3 seconds | |
349 | time_t t0 = time(NULL); | |
350 | ||
351 | // max 3 sec | |
352 | while (time(NULL) < t0 + 3 ) | |
353 | sc.fill_buffer(1000000); | |
354 | ||
355 | // we now should have packets complete packets in the buffer | |
356 | ||
357 | sc.reconnect(); | |
358 | ||
359 | // are these packets still there? | |
360 | ||
361 | for (int i=0; i < packets; i++) | |
362 | { | |
363 | string data; | |
364 | ||
365 | ostringstream os; | |
366 | os << "packet " << i << " not there"; | |
367 | ||
368 | CPPUNIT_ASSERT_EQUAL_MESSAGE(os.str(),true,sc.get_packet(data)); | |
369 | ||
370 | os.str(""); | |
371 | os << "packet " << i << " incorrect"; | |
372 | ||
373 | CPPUNIT_ASSERT_EQUAL_MESSAGE(os.str(),string().insert(0,100,'X'),data); | |
374 | } | |
375 | } | |
376 | } | |
377 | } | |
378 | ||
379 | void reconnect_buffer_no_incomplete1() | |
380 | { | |
b5922184 | 381 | switch(child_pid=fork()) |
af84dfb5 GE |
382 | { |
383 | case -1: | |
384 | { | |
385 | CPPUNIT_FAIL("fork error"); | |
386 | break; | |
387 | } | |
388 | case 0: | |
389 | // child | |
390 | { | |
391 | socket_server ss("./socket"); | |
392 | ||
393 | time_t t0 = time(NULL); | |
394 | ||
395 | // max 10 sec | |
396 | while (time(NULL) < t0 + 10 ) | |
397 | { | |
398 | ss.fill_buffer(1000000); | |
399 | ||
400 | string data; | |
401 | unsigned int cid; | |
402 | ||
403 | if(ss.get_packet(data,cid)) | |
404 | { | |
405 | server_connection* con=ss.get_connection(cid); | |
406 | ||
407 | if (data=="QUIT") | |
408 | break; | |
409 | ||
410 | if (data=="x") | |
411 | { | |
412 | con->write(string().insert(0,100,'X')); | |
413 | send_raw_socket("aaaab",&ss,cid); | |
414 | } | |
415 | } | |
416 | } | |
417 | ||
418 | // don't call atexit and stuff | |
419 | _exit(0); | |
420 | } | |
421 | ||
422 | default: | |
423 | // parent | |
424 | { | |
425 | // don't kill us on broken pipe | |
426 | signal(SIGPIPE, SIG_IGN); | |
427 | ||
428 | // wait till server is up | |
429 | sleep(1); | |
430 | socket_client_connection sc("./socket"); | |
431 | ||
432 | sc.write("x"); | |
433 | ||
434 | // retrieve packets for 3 seconds | |
435 | time_t t0 = time(NULL); | |
436 | ||
437 | // max 3 sec | |
438 | while (time(NULL) < t0 + 3 ) | |
439 | sc.fill_buffer(1000000); | |
440 | ||
441 | // we now should have one complete packet and some stuff in the buffer | |
442 | ||
443 | string data; | |
444 | sc.get_packet(data); | |
445 | ||
446 | CPPUNIT_ASSERT_EQUAL_MESSAGE("no incomplete packet",true,(sc.peek_packet(data))>0); | |
447 | ||
448 | sc.reconnect(); | |
449 | ||
450 | CPPUNIT_ASSERT_EQUAL_MESSAGE("incomplete packet not removed",0,(int)sc.peek_packet(data)); | |
451 | } | |
452 | } | |
453 | } | |
454 | ||
455 | void reconnect_buffer_no_incomplete2() | |
456 | { | |
b5922184 | 457 | switch(child_pid=fork()) |
af84dfb5 GE |
458 | { |
459 | case -1: | |
460 | { | |
461 | CPPUNIT_FAIL("fork error"); | |
462 | break; | |
463 | } | |
464 | case 0: | |
465 | // child | |
466 | { | |
467 | socket_server ss("./socket"); | |
468 | ||
469 | time_t t0 = time(NULL); | |
470 | ||
471 | // max 10 sec | |
472 | while (time(NULL) < t0 + 10 ) | |
473 | { | |
474 | ss.fill_buffer(1000000); | |
475 | ||
476 | string data; | |
477 | unsigned int cid; | |
478 | ||
479 | if(ss.get_packet(data,cid)) | |
480 | { | |
481 | server_connection* con=ss.get_connection(cid); | |
482 | ||
483 | if (data=="QUIT") | |
484 | break; | |
485 | ||
486 | if (data=="x") | |
487 | { | |
488 | con->write(string().insert(0,100,'X')); | |
489 | ||
490 | string blob=string().insert(0,100,'Y'); | |
491 | ||
492 | // one byte will be missing... | |
493 | int size=blob.size()+1; | |
494 | char sizetransfer[sizeof(int)+1]; | |
495 | memcpy(sizetransfer,(void*)&size,sizeof(int)); | |
496 | sizetransfer[sizeof(int)+1]=0; | |
497 | ||
498 | string packet=string(sizetransfer)+blob; | |
499 | ||
500 | send_raw_socket(packet,&ss,cid); | |
501 | } | |
502 | } | |
503 | } | |
504 | ||
505 | // don't call atexit and stuff | |
506 | _exit(0); | |
507 | } | |
508 | ||
509 | default: | |
510 | // parent | |
511 | { | |
512 | // don't kill us on broken pipe | |
513 | signal(SIGPIPE, SIG_IGN); | |
514 | ||
515 | // wait till server is up | |
516 | sleep(1); | |
517 | socket_client_connection sc("./socket"); | |
518 | ||
519 | sc.write("x"); | |
520 | ||
521 | // retrieve packets for 3 seconds | |
522 | time_t t0 = time(NULL); | |
523 | ||
524 | // max 3 sec | |
525 | while (time(NULL) < t0 + 3 ) | |
526 | sc.fill_buffer(1000000); | |
527 | ||
528 | // we now should have one complete packet and some stuff in the buffer | |
529 | ||
530 | sc.reconnect(); | |
531 | ||
532 | string data; | |
533 | ||
534 | CPPUNIT_ASSERT_EQUAL_MESSAGE("packet not there",true,sc.get_packet(data)); | |
535 | CPPUNIT_ASSERT_EQUAL_MESSAGE("data incorrect",string().insert(0,100,'X'),data); | |
536 | ||
537 | CPPUNIT_ASSERT_EQUAL_MESSAGE("incomplete packet not removed",0,(int)sc.peek_packet(data)); | |
538 | } | |
539 | } | |
540 | } | |
541 | ||
542 | }; | |
543 | ||
544 | CPPUNIT_TEST_SUITE_REGISTRATION(test_reconnect); |