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