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