nsprpub/pr/tests/servr_uu.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is the Netscape Portable Runtime (NSPR).
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998-2000
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 /***********************************************************************
  39 **
  40 ** This server simulates a server running in loopback mode.
  41 **
  42 ** The idea is that a single server is created.  The server initially creates
  43 ** a number of worker threads.  Then, with the server running, a number of
  44 ** clients are created which start requesting service from the server.
  45 **
  46 **
  47 ** Modification History:
  48 ** 19-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
  49 **               The debug mode will print all of the printfs associated with this test.
  50 **                       The regress mode will be the default mode. Since the regress tool limits
  51 **           the output to a one line status:PASS or FAIL,all of the printf statements
  52 **                       have been handled with an if (debug_mode) statement.
  53 ** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
  54 **                      recognize the return code from tha main program.
  55 ***********************************************************************/
  56
  57 /***********************************************************************
  58 ** Includes
  59 ***********************************************************************/
  60 /* Used to get the command line option */
  61 #include "plgetopt.h"
  62
  63 #include "nspr.h"
  64 #include "pprthred.h"
  65
  66 #include <string.h>
  67
  68 #define PORT 15004
  69 #define THREAD_STACKSIZE 0
  70
  71 static int _iterations = 1000;
  72 static int _clients = 1;
  73 static int _client_data = 250;
  74 static int _server_data = (8*1024);
  75
  76 static PRThreadScope ServerScope, ClientScope;
  77
  78 #define SERVER "Server"
  79 #define MAIN   "Main"
  80
  81 #define SERVER_STATE_STARTUP 0
  82 #define SERVER_STATE_READY   1
  83 #define SERVER_STATE_DYING   2
  84 #define SERVER_STATE_DEAD    4
  85 int       ServerState;
  86 PRLock    *ServerStateCVLock;
  87 PRCondVar *ServerStateCV;
  88
  89 #ifdef DEBUGPRINTS
  90 #define DPRINTF printf
  91 #else
  92 #define DPRINTF
  93 #endif
  94
  95 PRIntn failed_already=0;
  96 PRIntn debug_mode;
  97
  98 static void do_work(void);
  99
 100 /* --- Server state functions --------------------------------------------- */
 101 void
 102 SetServerState(char *waiter, PRInt32 state)
 103 {
 104     PR_Lock(ServerStateCVLock);
 105     ServerState = state;
 106     PR_NotifyCondVar(ServerStateCV);
 107
 108         if (debug_mode) DPRINTF("\t%s changed state to %d\n", waiter, state);
 109
 110     PR_Unlock(ServerStateCVLock);
 111 }
 112
 113 int
 114 WaitServerState(char *waiter, PRInt32 state)
 115 {
 116     PRInt32 rv;
 117
 118     PR_Lock(ServerStateCVLock);
 119
 120     if (debug_mode) DPRINTF("\t%s waiting for state %d\n", waiter, state);
 121
 122     while(!(ServerState & state))
 123         PR_WaitCondVar(ServerStateCV, PR_INTERVAL_NO_TIMEOUT);
 124     rv = ServerState;
 125
 126     if (debug_mode) DPRINTF("\t%s resuming from wait for state %d; state now %d\n",
 127         waiter, state, ServerState);
 128     PR_Unlock(ServerStateCVLock);
 129
 130     return rv;
 131 }
 132
 133 /* --- Server Functions ------------------------------------------- */
 134
 135 PRLock *workerThreadsLock;
 136 PRInt32 workerThreads;
 137 PRInt32 workerThreadsBusy;
 138
 139 void
 140 WorkerThreadFunc(void *_listenSock)
 141 {
 142     PRFileDesc *listenSock = (PRFileDesc *)_listenSock;
 143     PRInt32 bytesRead;
 144     PRInt32 bytesWritten;
 145     char *dataBuf;
 146     char *sendBuf;
 147
 148     if (debug_mode) DPRINTF("\tServer buffer is %d bytes; %d data, %d netaddrs\n",
 149             _client_data+(2*sizeof(PRNetAddr))+32, _client_data, (2*sizeof(PRNetAddr))+32);
 150     dataBuf = (char *)PR_MALLOC(_client_data + 2*sizeof(PRNetAddr) + 32);
 151     if (!dataBuf)
 152         if (debug_mode) printf("\tServer could not malloc space!?\n");
 153     sendBuf = (char *)PR_MALLOC(_server_data *sizeof(char));
 154     if (!sendBuf)
 155         if (debug_mode) printf("\tServer could not malloc space!?\n");
 156
 157     if (debug_mode) DPRINTF("\tServer worker thread running\n");
 158
 159     while(1) {
 160         PRInt32 bytesToRead = _client_data;
 161         PRInt32 bytesToWrite = _server_data;
 162         PRFileDesc *newSock;
 163         PRNetAddr *rAddr;
 164         PRInt32 loops = 0;
 165
 166         loops++;
 167
 168         if (debug_mode) DPRINTF("\tServer thread going into accept\n");
 169
 170         bytesRead = PR_AcceptRead(listenSock,
 171                                   &newSock,
 172                                   &rAddr,
 173                                   dataBuf,
 174                                   bytesToRead,
 175                                   PR_INTERVAL_NO_TIMEOUT);
 176
 177         if (bytesRead < 0) {
 178             if (debug_mode) printf("\tServer error in accept (%d)\n", bytesRead);
 179             continue;
 180         }
 181
 182         if (debug_mode) DPRINTF("\tServer accepted connection (%d bytes)\n", bytesRead);
 183
 184         PR_AtomicIncrement(&workerThreadsBusy);
 185         if (workerThreadsBusy == workerThreads) {
 186
 187             PR_Lock(workerThreadsLock);
 188             if (workerThreadsBusy == workerThreads) {
 189                 PRThread *WorkerThread;
 190
 191                 WorkerThread = PR_CreateThread(
 192                                   PR_SYSTEM_THREAD,
 193                                   WorkerThreadFunc,
 194                                   listenSock,
 195                                   PR_PRIORITY_NORMAL,
 196                                   ServerScope,
 197                                   PR_UNJOINABLE_THREAD,
 198                                   THREAD_STACKSIZE);
 199
 200                 if (!WorkerThread) {
 201                     if (debug_mode) printf("Error creating client thread %d\n", workerThreads);
 202                 } else {
 203                     PR_AtomicIncrement(&workerThreads);
 204                     if (debug_mode) DPRINTF("\tServer creates worker (%d)\n", workerThreads);
 205                 }
 206             }
 207             PR_Unlock(workerThreadsLock);
 208         }
 209
 210         bytesToRead -= bytesRead;
 211         while (bytesToRead) {
 212             bytesRead = PR_Recv(newSock,
 213                                 dataBuf,
 214                                 bytesToRead,
 215                                 0,
 216                                 PR_INTERVAL_NO_TIMEOUT);
 217             if (bytesRead < 0) {
 218                 if (debug_mode) printf("\tServer error receiving data (%d)\n", bytesRead);
 219                 continue;
 220             }
 221             if (debug_mode) DPRINTF("\tServer received %d bytes\n", bytesRead);
 222         }
 223
 224         bytesWritten = PR_Send(newSock,
 225                                sendBuf,
 226                                bytesToWrite,
 227                                0,
 228                                PR_INTERVAL_NO_TIMEOUT);
 229         if (bytesWritten != _server_data) {
 230             if (debug_mode) printf("\tError sending data to client (%d, %d)\n",
 231                 bytesWritten, PR_GetOSError());
 232         } else {
 233             if (debug_mode) DPRINTF("\tServer sent %d bytes\n", bytesWritten);
 234         }
 235
 236         PR_Close(newSock);
 237         PR_AtomicDecrement(&workerThreadsBusy);
 238     }
 239 }
 240
 241 PRFileDesc *
 242 ServerSetup(void)
 243 {
 244     PRFileDesc *listenSocket;
 245     PRSocketOptionData sockOpt;
 246     PRNetAddr serverAddr;
 247     PRThread *WorkerThread;
 248
 249     if ( (listenSocket = PR_NewTCPSocket()) == NULL) {
 250         if (debug_mode) printf("\tServer error creating listen socket\n");
 251                 else failed_already=1;
 252         return NULL;
 253     }
 254
 255     sockOpt.option = PR_SockOpt_Reuseaddr;
 256     sockOpt.value.reuse_addr = PR_TRUE;
 257     if ( PR_SetSocketOption(listenSocket, &sockOpt) == PR_FAILURE) {
 258         if (debug_mode) printf("\tServer error setting socket option: OS error %d\n",
 259                 PR_GetOSError());
 260                 else failed_already=1;
 261         PR_Close(listenSocket);
 262         return NULL;
 263     }
 264
 265     memset(&serverAddr, 0, sizeof(PRNetAddr));
 266     serverAddr.inet.family = PR_AF_INET;
 267     serverAddr.inet.port = PR_htons(PORT);
 268     serverAddr.inet.ip = PR_htonl(PR_INADDR_ANY);
 269
 270     if ( PR_Bind(listenSocket, &serverAddr) == PR_FAILURE) {
 271         if (debug_mode) printf("\tServer error binding to server address: OS error %d\n",
 272                 PR_GetOSError());
 273                 else failed_already=1;
 274         PR_Close(listenSocket);
 275         return NULL;
 276     }
 277
 278     if ( PR_Listen(listenSocket, 128) == PR_FAILURE) {
 279         if (debug_mode) printf("\tServer error listening to server socket\n");
 280                 else failed_already=1;
 281         PR_Close(listenSocket);
 282
 283         return NULL;
 284     }
 285
 286     /* Create Clients */
 287     workerThreads = 0;
 288     workerThreadsBusy = 0;
 289
 290     workerThreadsLock = PR_NewLock();
 291
 292     WorkerThread = PR_CreateThread(
 293                       PR_SYSTEM_THREAD,
 294                       WorkerThreadFunc,
 295                       listenSocket,
 296                       PR_PRIORITY_NORMAL,
 297                       ServerScope,
 298                       PR_UNJOINABLE_THREAD,
 299                       THREAD_STACKSIZE);
 300
 301     if (!WorkerThread) {
 302         if (debug_mode) printf("error creating working thread\n");
 303         PR_Close(listenSocket);
 304         return NULL;
 305     }
 306     PR_AtomicIncrement(&workerThreads);
 307     if (debug_mode) DPRINTF("\tServer created primordial worker thread\n");
 308
 309     return listenSocket;
 310 }
 311
 312 /* The main server loop */
 313 void
 314 ServerThreadFunc(void *unused)
 315 {
 316     PRFileDesc *listenSocket;
 317
 318     /* Do setup */
 319     listenSocket = ServerSetup();
 320
 321     if (!listenSocket) {
 322         SetServerState(SERVER, SERVER_STATE_DEAD);
 323     } else {
 324
 325         if (debug_mode) DPRINTF("\tServer up\n");
 326
 327         /* Tell clients they can start now. */
 328         SetServerState(SERVER, SERVER_STATE_READY);
 329
 330         /* Now wait for server death signal */
 331         WaitServerState(SERVER, SERVER_STATE_DYING);
 332
 333         /* Cleanup */
 334         SetServerState(SERVER, SERVER_STATE_DEAD);
 335     }
 336 }
 337
 338 /* --- Client Functions ------------------------------------------- */
 339
 340 PRInt32 numRequests;
 341 PRInt32 numClients;
 342 PRMonitor *clientMonitor;
 343
 344 void
 345 ClientThreadFunc(void *unused)
 346 {
 347     PRNetAddr serverAddr;
 348     PRFileDesc *clientSocket;
 349     char *sendBuf;
 350     char *recvBuf;
 351     PRInt32 rv;
 352     PRInt32 bytesNeeded;
 353
 354     sendBuf = (char *)PR_MALLOC(_client_data * sizeof(char));
 355     if (!sendBuf)
 356         if (debug_mode) printf("\tClient could not malloc space!?\n");
 357     recvBuf = (char *)PR_MALLOC(_server_data * sizeof(char));
 358     if (!recvBuf)
 359         if (debug_mode) printf("\tClient could not malloc space!?\n");
 360
 361     memset(&serverAddr, 0, sizeof(PRNetAddr));
 362     serverAddr.inet.family = PR_AF_INET;
 363     serverAddr.inet.port = PR_htons(PORT);
 364     serverAddr.inet.ip = PR_htonl(PR_INADDR_LOOPBACK);
 365
 366     while(numRequests > 0) {
 367
 368         if ( (numRequests % 10) == 0 )
 369             if (debug_mode) printf(".");
 370         if (debug_mode) DPRINTF("\tClient starting request %d\n", numRequests);
 371
 372         clientSocket = PR_NewTCPSocket();
 373         if (!clientSocket) {
 374             if (debug_mode) printf("Client error creating socket: OS error %d\n",
 375                     PR_GetOSError());
 376             continue;
 377         }
 378
 379         if (debug_mode) DPRINTF("\tClient connecting\n");
 380
 381         rv = PR_Connect(clientSocket,
 382                         &serverAddr,
 383                         PR_INTERVAL_NO_TIMEOUT);
 384         if (!clientSocket) {
 385             if (debug_mode) printf("\tClient error connecting\n");
 386             continue;
 387         }
 388
 389         if (debug_mode) DPRINTF("\tClient connected\n");
 390
 391         rv = PR_Send(clientSocket,
 392                      sendBuf,
 393                      _client_data,
 394                      0,
 395                      PR_INTERVAL_NO_TIMEOUT);
 396         if (rv != _client_data) {
 397             if (debug_mode) printf("Client error sending data (%d)\n", rv);
 398             PR_Close(clientSocket);
 399             continue;
 400         }
 401
 402         if (debug_mode) DPRINTF("\tClient sent %d bytes\n", rv);
 403
 404         bytesNeeded = _server_data;
 405         while(bytesNeeded) {
 406             rv = PR_Recv(clientSocket,
 407                          recvBuf,
 408                          bytesNeeded,
 409                          0,
 410                          PR_INTERVAL_NO_TIMEOUT);
 411             if (rv <= 0) {
 412                 if (debug_mode) printf("Client error receiving data (%d) (%d/%d)\n",
 413                     rv, (_server_data - bytesNeeded), _server_data);
 414                 break;
 415             }
 416             if (debug_mode) DPRINTF("\tClient received %d bytes; need %d more\n", rv, bytesNeeded - rv);
 417             bytesNeeded -= rv;
 418         }
 419
 420         PR_Close(clientSocket);
 421
 422         PR_AtomicDecrement(&numRequests);
 423     }
 424
 425     PR_EnterMonitor(clientMonitor);
 426     --numClients;
 427     PR_Notify(clientMonitor);
 428     PR_ExitMonitor(clientMonitor);
 429
 430     PR_DELETE(sendBuf);
 431     PR_DELETE(recvBuf);
 432 }
 433
 434 void
 435 RunClients(void)
 436 {
 437     PRInt32 index;
 438
 439     numRequests = _iterations;
 440     numClients = _clients;
 441     clientMonitor = PR_NewMonitor();
 442
 443     for (index=0; index<_clients; index++) {
 444         PRThread *clientThread;
 445
 446
 447         clientThread = PR_CreateThread(
 448                           PR_USER_THREAD,
 449                           ClientThreadFunc,
 450                           NULL,
 451                           PR_PRIORITY_NORMAL,
 452                           ClientScope,
 453                           PR_UNJOINABLE_THREAD,
 454                           THREAD_STACKSIZE);
 455
 456         if (!clientThread) {
 457             if (debug_mode) printf("\terror creating client thread %d\n", index);
 458         } else
 459             if (debug_mode) DPRINTF("\tMain created client %d/%d\n", index+1, _clients);
 460
 461     }
 462
 463     PR_EnterMonitor(clientMonitor);
 464     while(numClients)
 465         PR_Wait(clientMonitor, PR_INTERVAL_NO_TIMEOUT);
 466     PR_ExitMonitor(clientMonitor);
 467 }
 468
 469 /* --- Main Function ---------------------------------------------- */
 470
 471 static
 472 void do_work()
 473 {
 474     PRThread *ServerThread;
 475     PRInt32 state;
 476
 477     SetServerState(MAIN, SERVER_STATE_STARTUP);
 478     ServerThread = PR_CreateThread(
 479                       PR_USER_THREAD,
 480                       ServerThreadFunc,
 481                       NULL,
 482                       PR_PRIORITY_NORMAL,
 483                       ServerScope,
 484                       PR_JOINABLE_THREAD,
 485                       THREAD_STACKSIZE);
 486     if (!ServerThread) {
 487         if (debug_mode) printf("error creating main server thread\n");
 488         return;
 489     }
 490
 491     /* Wait for server to be ready */
 492     state = WaitServerState(MAIN, SERVER_STATE_READY|SERVER_STATE_DEAD);
 493
 494     if (!(state & SERVER_STATE_DEAD)) {
 495         /* Run Test Clients */
 496         RunClients();
 497
 498         /* Send death signal to server */
 499         SetServerState(MAIN, SERVER_STATE_DYING);
 500     }
 501
 502     PR_JoinThread(ServerThread);
 503 }
 504
 505 static void do_workUU(void)
 506 {
 507     ServerScope = PR_LOCAL_THREAD;
 508     ClientScope = PR_LOCAL_THREAD;
 509     do_work();
 510 }
 511
 512
 513
 514 static void Measure(void (*func)(void), const char *msg)
 515 {
 516     PRIntervalTime start, stop;
 517     double d;
 518
 519     start = PR_IntervalNow();
 520     (*func)();
 521     stop = PR_IntervalNow();
 522
 523     d = (double)PR_IntervalToMicroseconds(stop - start);
 524
 525     if (debug_mode) printf("\n%40s: %6.2f usec\n", msg, d / _iterations);
 526 }
 527
 528
 529 main(int argc, char **argv)
 530 {
 531         /* The command line argument: -d is used to determine if the test is being run
 532         in debug mode. The regress tool requires only one line output:PASS or FAIL.
 533         All of the printfs associated with this test has been handled with a if (debug_mode)
 534         test.
 535         Usage: test_name -d
 536         */
 537         PLOptStatus os;
 538         PLOptState *opt = PL_CreateOptState(argc, argv, "d:");
 539         while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
 540     {
 541                 if (PL_OPT_BAD == os) continue;
 542         switch (opt->option)
 543         {
 544         case 'd':  /* debug mode */
 545                         debug_mode = 1;
 546             break;
 547          default:
 548             break;
 549         }
 550     }
 551         PL_DestroyOptState(opt);
 552
 553  /* main test */
 554     if (debug_mode) {
 555                 printf("Enter number of iterations: \n");
 556                 scanf("%d", &_iterations);
 557                 printf("Enter number of clients   : \n");
 558                 scanf("%d", &_clients);
 559                 printf("Enter size of client data : \n");
 560                 scanf("%d", &_client_data);
 561                 printf("Enter size of server data : \n");
 562                 scanf("%d", &_server_data);
 563         }
 564         else {
 565                 _iterations = 7;
 566                 _clients = 7;
 567                 _client_data = 100;
 568                 _server_data = 100;
 569         }
 570
 571     if (debug_mode) {
 572                 printf("\n\n%d iterations with %d client threads.\n",
 573         _iterations, _clients);
 574                 printf("Sending %d bytes of client data and %d bytes of server data\n",
 575         _client_data, _server_data);
 576         }
 577     PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
 578     PR_STDIO_INIT();
 579
 580     PR_SetThreadRecycleMode(64);
 581
 582     ServerStateCVLock = PR_NewLock();
 583     ServerStateCV = PR_NewCondVar(ServerStateCVLock);
 584
 585     Measure(do_workUU, "server loop user/user");
 586
 587     PR_Cleanup();
 588
 589         if(failed_already)
 590                 return 1;
 591         else
 592                 return 0;
 593
 594 }