| 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> |
| 12 | #include <time.h> |
| 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 | |
| 55 | pid_t child_pid; |
| 56 | |
| 57 | public: |
| 58 | |
| 59 | void setUp() |
| 60 | { } |
| 61 | |
| 62 | void tearDown() |
| 63 | { |
| 64 | // make sure the server-child is dead before the next test runs |
| 65 | kill(child_pid,SIGKILL); |
| 66 | sleep(1); |
| 67 | } |
| 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 | { |
| 80 | switch(child_pid=fork()) |
| 81 | { |
| 82 | case -1: |
| 83 | { |
| 84 | CPPUNIT_FAIL("fork error"); |
| 85 | break; |
| 86 | } |
| 87 | case 0: |
| 88 | // child |
| 89 | { |
| 90 | try |
| 91 | { |
| 92 | socket_server ss("./socket"); |
| 93 | |
| 94 | time_t t0 = time(NULL); |
| 95 | |
| 96 | // max 10 sec |
| 97 | while (time(NULL) < t0 + 10 ) |
| 98 | { |
| 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); |
| 107 | |
| 108 | if (data=="QUIT") |
| 109 | break; |
| 110 | |
| 111 | if (data=="x") |
| 112 | con->write(string().insert(0,100,'X')); |
| 113 | else |
| 114 | con->write(string().insert(0,100,'Y')); |
| 115 | } |
| 116 | } |
| 117 | } catch(...) |
| 118 | { |
| 119 | std::cerr << "exception in child. ignoring\n"; |
| 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 | { |
| 157 | switch(child_pid=fork()) |
| 158 | { |
| 159 | case -1: |
| 160 | { |
| 161 | CPPUNIT_FAIL("fork error"); |
| 162 | break; |
| 163 | } |
| 164 | case 0: |
| 165 | // child |
| 166 | { |
| 167 | try |
| 168 | { |
| 169 | socket_server ss("./socket"); |
| 170 | |
| 171 | time_t t0 = time(NULL); |
| 172 | |
| 173 | // max 10 sec |
| 174 | while (time(NULL) < t0 + 10 ) |
| 175 | { |
| 176 | ss.fill_buffer(1000000); |
| 177 | |
| 178 | string data; |
| 179 | unsigned int cid; |
| 180 | |
| 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 | } |
| 193 | } |
| 194 | } catch(...) |
| 195 | { |
| 196 | std::cerr << "exception in child. ignoring\n"; |
| 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 | { |
| 239 | switch(child_pid=fork()) |
| 240 | { |
| 241 | case -1: |
| 242 | { |
| 243 | CPPUNIT_FAIL("fork error"); |
| 244 | break; |
| 245 | } |
| 246 | case 0: |
| 247 | // child |
| 248 | { |
| 249 | try |
| 250 | { |
| 251 | socket_server ss("./socket"); |
| 252 | |
| 253 | time_t t0 = time(NULL); |
| 254 | |
| 255 | // max 10 sec |
| 256 | while (time(NULL) < t0 + 10 ) |
| 257 | { |
| 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); |
| 266 | |
| 267 | if (data=="QUIT") |
| 268 | break; |
| 269 | |
| 270 | if (data=="x") |
| 271 | con->write(string().insert(0,100,'X')); |
| 272 | } |
| 273 | } |
| 274 | } catch(...) |
| 275 | { |
| 276 | std::cerr << "exception in child. ignoring\n"; |
| 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 | { |
| 311 | const int packets=3; |
| 312 | |
| 313 | switch(child_pid=fork()) |
| 314 | { |
| 315 | case -1: |
| 316 | { |
| 317 | CPPUNIT_FAIL("fork error"); |
| 318 | break; |
| 319 | } |
| 320 | case 0: |
| 321 | // child |
| 322 | { |
| 323 | try |
| 324 | { |
| 325 | socket_server ss("./socket"); |
| 326 | |
| 327 | time_t t0 = time(NULL); |
| 328 | |
| 329 | // max 10 sec |
| 330 | while (time(NULL) < t0 + 10 ) |
| 331 | { |
| 332 | ss.fill_buffer(1000000); |
| 333 | |
| 334 | string data; |
| 335 | unsigned int cid; |
| 336 | |
| 337 | if(ss.get_packet(data,cid)) |
| 338 | { |
| 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 | } |
| 349 | } |
| 350 | } |
| 351 | } catch(...) |
| 352 | { |
| 353 | std::cerr << "exception in child. ignoring\n"; |
| 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 | { |
| 405 | switch(child_pid=fork()) |
| 406 | { |
| 407 | case -1: |
| 408 | { |
| 409 | CPPUNIT_FAIL("fork error"); |
| 410 | break; |
| 411 | } |
| 412 | case 0: |
| 413 | // child |
| 414 | { |
| 415 | try |
| 416 | { |
| 417 | socket_server ss("./socket"); |
| 418 | |
| 419 | time_t t0 = time(NULL); |
| 420 | |
| 421 | // max 10 sec |
| 422 | while (time(NULL) < t0 + 10 ) |
| 423 | { |
| 424 | ss.fill_buffer(1000000); |
| 425 | |
| 426 | string data; |
| 427 | unsigned int cid; |
| 428 | |
| 429 | if(ss.get_packet(data,cid)) |
| 430 | { |
| 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 | } |
| 441 | } |
| 442 | } |
| 443 | } catch(...) |
| 444 | { |
| 445 | std::cerr << "exception in child. ignoring\n"; |
| 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 | { |
| 487 | switch(child_pid=fork()) |
| 488 | { |
| 489 | case -1: |
| 490 | { |
| 491 | CPPUNIT_FAIL("fork error"); |
| 492 | break; |
| 493 | } |
| 494 | case 0: |
| 495 | // child |
| 496 | { |
| 497 | try |
| 498 | { |
| 499 | socket_server ss("./socket"); |
| 500 | |
| 501 | time_t t0 = time(NULL); |
| 502 | |
| 503 | // max 10 sec |
| 504 | while (time(NULL) < t0 + 10 ) |
| 505 | { |
| 506 | ss.fill_buffer(1000000); |
| 507 | |
| 508 | string data; |
| 509 | unsigned int cid; |
| 510 | |
| 511 | if(ss.get_packet(data,cid)) |
| 512 | { |
| 513 | server_connection* con=ss.get_connection(cid); |
| 514 | |
| 515 | if (data=="QUIT") |
| 516 | break; |
| 517 | |
| 518 | if (data=="x") |
| 519 | { |
| 520 | con->write(string().insert(0,100,'X')); |
| 521 | |
| 522 | string blob=string().insert(0,100,'Y'); |
| 523 | |
| 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; |
| 529 | |
| 530 | string packet=string(sizetransfer)+blob; |
| 531 | |
| 532 | send_raw_socket(packet,&ss,cid); |
| 533 | } |
| 534 | } |
| 535 | } |
| 536 | } catch(...) |
| 537 | { |
| 538 | std::cerr << "exception in child. ignoring\n"; |
| 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); |