1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/tests/server_test.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,610 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/***********************************************************************
1.10 +**
1.11 +** This server simulates a server running in loopback mode.
1.12 +**
1.13 +** The idea is that a single server is created. The server initially creates
1.14 +** a number of worker threads. Then, with the server running, a number of
1.15 +** clients are created which start requesting service from the server.
1.16 +**
1.17 +**
1.18 +** Modification History:
1.19 +** 19-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
1.20 +** The debug mode will print all of the printfs associated with this test.
1.21 +** The regress mode will be the default mode. Since the regress tool limits
1.22 +** the output to a one line status:PASS or FAIL,all of the printf statements
1.23 +** have been handled with an if (debug_mode) statement.
1.24 +***********************************************************************/
1.25 +
1.26 +/***********************************************************************
1.27 +** Includes
1.28 +***********************************************************************/
1.29 +/* Used to get the command line option */
1.30 +#include "plgetopt.h"
1.31 +
1.32 +#include "nspr.h"
1.33 +#include "pprthred.h"
1.34 +
1.35 +#include <string.h>
1.36 +
1.37 +#define PORT 15004
1.38 +#define THREAD_STACKSIZE 0
1.39 +
1.40 +#define PASS 0
1.41 +#define FAIL 1
1.42 +static int debug_mode = 0;
1.43 +
1.44 +static int _iterations = 1000;
1.45 +static int _clients = 1;
1.46 +static int _client_data = 250;
1.47 +static int _server_data = (8*1024);
1.48 +
1.49 +static PRThreadScope ServerScope, ClientScope;
1.50 +
1.51 +#define SERVER "Server"
1.52 +#define MAIN "Main"
1.53 +
1.54 +#define SERVER_STATE_STARTUP 0
1.55 +#define SERVER_STATE_READY 1
1.56 +#define SERVER_STATE_DYING 2
1.57 +#define SERVER_STATE_DEAD 4
1.58 +int ServerState;
1.59 +PRLock *ServerStateCVLock;
1.60 +PRCondVar *ServerStateCV;
1.61 +
1.62 +#undef DEBUGPRINTS
1.63 +#ifdef DEBUGPRINTS
1.64 +#define DPRINTF printf
1.65 +#else
1.66 +#define DPRINTF
1.67 +#endif
1.68 +
1.69 +
1.70 +/***********************************************************************
1.71 +** PRIVATE FUNCTION: Test_Result
1.72 +** DESCRIPTION: Used in conjunction with the regress tool, prints out the
1.73 +** status of the test case.
1.74 +** INPUTS: PASS/FAIL
1.75 +** OUTPUTS: None
1.76 +** RETURN: None
1.77 +** SIDE EFFECTS:
1.78 +**
1.79 +** RESTRICTIONS:
1.80 +** None
1.81 +** MEMORY: NA
1.82 +** ALGORITHM: Determine what the status is and print accordingly.
1.83 +**
1.84 +***********************************************************************/
1.85 +
1.86 +
1.87 +static void Test_Result (int result)
1.88 +{
1.89 + switch (result)
1.90 + {
1.91 + case PASS:
1.92 + printf ("PASS\n");
1.93 + break;
1.94 + case FAIL:
1.95 + printf ("FAIL\n");
1.96 + break;
1.97 + default:
1.98 + break;
1.99 + }
1.100 +}
1.101 +
1.102 +static void do_work(void);
1.103 +
1.104 +/* --- Server state functions --------------------------------------------- */
1.105 +void
1.106 +SetServerState(char *waiter, PRInt32 state)
1.107 +{
1.108 + PR_Lock(ServerStateCVLock);
1.109 + ServerState = state;
1.110 + PR_NotifyCondVar(ServerStateCV);
1.111 +
1.112 + if (debug_mode) DPRINTF("\t%s changed state to %d\n", waiter, state);
1.113 +
1.114 + PR_Unlock(ServerStateCVLock);
1.115 +}
1.116 +
1.117 +int
1.118 +WaitServerState(char *waiter, PRInt32 state)
1.119 +{
1.120 + PRInt32 rv;
1.121 +
1.122 + PR_Lock(ServerStateCVLock);
1.123 +
1.124 + if (debug_mode) DPRINTF("\t%s waiting for state %d\n", waiter, state);
1.125 +
1.126 + while(!(ServerState & state))
1.127 + PR_WaitCondVar(ServerStateCV, PR_INTERVAL_NO_TIMEOUT);
1.128 + rv = ServerState;
1.129 +
1.130 + if (debug_mode) DPRINTF("\t%s resuming from wait for state %d; state now %d\n",
1.131 + waiter, state, ServerState);
1.132 + PR_Unlock(ServerStateCVLock);
1.133 +
1.134 + return rv;
1.135 +}
1.136 +
1.137 +/* --- Server Functions ------------------------------------------- */
1.138 +
1.139 +PRLock *workerThreadsLock;
1.140 +PRInt32 workerThreads;
1.141 +PRInt32 workerThreadsBusy;
1.142 +
1.143 +void
1.144 +WorkerThreadFunc(void *_listenSock)
1.145 +{
1.146 + PRFileDesc *listenSock = (PRFileDesc *)_listenSock;
1.147 + PRInt32 bytesRead;
1.148 + PRInt32 bytesWritten;
1.149 + char *dataBuf;
1.150 + char *sendBuf;
1.151 +
1.152 + if (debug_mode) DPRINTF("\tServer buffer is %d bytes; %d data, %d netaddrs\n",
1.153 + _client_data+(2*sizeof(PRNetAddr))+32, _client_data, (2*sizeof(PRNetAddr))+32);
1.154 + dataBuf = (char *)PR_MALLOC(_client_data + 2*sizeof(PRNetAddr) + 32);
1.155 + if (!dataBuf)
1.156 + if (debug_mode) printf("\tServer could not malloc space!?\n");
1.157 + sendBuf = (char *)PR_MALLOC(_server_data *sizeof(char));
1.158 + if (!sendBuf)
1.159 + if (debug_mode) printf("\tServer could not malloc space!?\n");
1.160 +
1.161 + if (debug_mode) DPRINTF("\tServer worker thread running\n");
1.162 +
1.163 + while(1) {
1.164 + PRInt32 bytesToRead = _client_data;
1.165 + PRInt32 bytesToWrite = _server_data;
1.166 + PRFileDesc *newSock;
1.167 + PRNetAddr *rAddr;
1.168 + PRInt32 loops = 0;
1.169 +
1.170 + loops++;
1.171 +
1.172 + if (debug_mode) DPRINTF("\tServer thread going into accept\n");
1.173 +
1.174 + bytesRead = PR_AcceptRead(listenSock,
1.175 + &newSock,
1.176 + &rAddr,
1.177 + dataBuf,
1.178 + bytesToRead,
1.179 + PR_INTERVAL_NO_TIMEOUT);
1.180 +
1.181 + if (bytesRead < 0) {
1.182 + if (debug_mode) printf("\tServer error in accept (%d)\n", bytesRead);
1.183 + continue;
1.184 + }
1.185 +
1.186 + if (debug_mode) DPRINTF("\tServer accepted connection (%d bytes)\n", bytesRead);
1.187 +
1.188 + PR_AtomicIncrement(&workerThreadsBusy);
1.189 +#ifdef SYMBIAN
1.190 + if (workerThreadsBusy == workerThreads && workerThreads<1) {
1.191 +#else
1.192 + if (workerThreadsBusy == workerThreads) {
1.193 +#endif
1.194 + PR_Lock(workerThreadsLock);
1.195 + if (workerThreadsBusy == workerThreads) {
1.196 + PRThread *WorkerThread;
1.197 +
1.198 + WorkerThread = PR_CreateThread(
1.199 + PR_SYSTEM_THREAD,
1.200 + WorkerThreadFunc,
1.201 + listenSock,
1.202 + PR_PRIORITY_NORMAL,
1.203 + ServerScope,
1.204 + PR_UNJOINABLE_THREAD,
1.205 + THREAD_STACKSIZE);
1.206 +
1.207 + if (!WorkerThread) {
1.208 + if (debug_mode) printf("Error creating client thread %d\n", workerThreads);
1.209 + } else {
1.210 + PR_AtomicIncrement(&workerThreads);
1.211 + if (debug_mode) DPRINTF("\tServer creates worker (%d)\n", workerThreads);
1.212 + }
1.213 + }
1.214 + PR_Unlock(workerThreadsLock);
1.215 + }
1.216 +
1.217 + bytesToRead -= bytesRead;
1.218 + while (bytesToRead) {
1.219 + bytesRead = PR_Recv(newSock,
1.220 + dataBuf,
1.221 + bytesToRead,
1.222 + 0,
1.223 + PR_INTERVAL_NO_TIMEOUT);
1.224 + if (bytesRead < 0) {
1.225 + if (debug_mode) printf("\tServer error receiving data (%d)\n", bytesRead);
1.226 + continue;
1.227 + }
1.228 + if (debug_mode) DPRINTF("\tServer received %d bytes\n", bytesRead);
1.229 + }
1.230 +
1.231 + bytesWritten = PR_Send(newSock,
1.232 + sendBuf,
1.233 + bytesToWrite,
1.234 + 0,
1.235 + PR_INTERVAL_NO_TIMEOUT);
1.236 + if (bytesWritten != _server_data) {
1.237 + if (debug_mode) printf("\tError sending data to client (%d, %d)\n",
1.238 + bytesWritten, PR_GetOSError());
1.239 + } else {
1.240 + if (debug_mode) DPRINTF("\tServer sent %d bytes\n", bytesWritten);
1.241 + }
1.242 +
1.243 + PR_Close(newSock);
1.244 + PR_AtomicDecrement(&workerThreadsBusy);
1.245 + }
1.246 +}
1.247 +
1.248 +PRFileDesc *
1.249 +ServerSetup(void)
1.250 +{
1.251 + PRFileDesc *listenSocket;
1.252 + PRNetAddr serverAddr;
1.253 + PRThread *WorkerThread;
1.254 +
1.255 + if ( (listenSocket = PR_NewTCPSocket()) == NULL) {
1.256 + if (debug_mode) printf("\tServer error creating listen socket\n");
1.257 + else Test_Result(FAIL);
1.258 + return NULL;
1.259 + }
1.260 +
1.261 + memset(&serverAddr, 0, sizeof(PRNetAddr));
1.262 + serverAddr.inet.family = PR_AF_INET;
1.263 + serverAddr.inet.port = PR_htons(PORT);
1.264 + serverAddr.inet.ip = PR_htonl(PR_INADDR_ANY);
1.265 +
1.266 + if ( PR_Bind(listenSocket, &serverAddr) == PR_FAILURE) {
1.267 + if (debug_mode) printf("\tServer error binding to server address: OS error %d\n",
1.268 + PR_GetOSError());
1.269 + else Test_Result(FAIL);
1.270 + PR_Close(listenSocket);
1.271 + return NULL;
1.272 + }
1.273 +
1.274 + if ( PR_Listen(listenSocket, 128) == PR_FAILURE) {
1.275 + if (debug_mode) printf("\tServer error listening to server socket\n");
1.276 + else Test_Result(FAIL);
1.277 + PR_Close(listenSocket);
1.278 +
1.279 + return NULL;
1.280 + }
1.281 +
1.282 + /* Create Clients */
1.283 + workerThreads = 0;
1.284 + workerThreadsBusy = 0;
1.285 +
1.286 + workerThreadsLock = PR_NewLock();
1.287 +
1.288 + WorkerThread = PR_CreateThread(
1.289 + PR_SYSTEM_THREAD,
1.290 + WorkerThreadFunc,
1.291 + listenSocket,
1.292 + PR_PRIORITY_NORMAL,
1.293 + ServerScope,
1.294 + PR_UNJOINABLE_THREAD,
1.295 + THREAD_STACKSIZE);
1.296 +
1.297 + if (!WorkerThread) {
1.298 + if (debug_mode) printf("error creating working thread\n");
1.299 + PR_Close(listenSocket);
1.300 + return NULL;
1.301 + }
1.302 + PR_AtomicIncrement(&workerThreads);
1.303 + if (debug_mode) DPRINTF("\tServer created primordial worker thread\n");
1.304 +
1.305 + return listenSocket;
1.306 +}
1.307 +
1.308 +/* The main server loop */
1.309 +void
1.310 +ServerThreadFunc(void *unused)
1.311 +{
1.312 + PRFileDesc *listenSocket;
1.313 +
1.314 + /* Do setup */
1.315 + listenSocket = ServerSetup();
1.316 +
1.317 + if (!listenSocket) {
1.318 + SetServerState(SERVER, SERVER_STATE_DEAD);
1.319 + } else {
1.320 +
1.321 + if (debug_mode) DPRINTF("\tServer up\n");
1.322 +
1.323 + /* Tell clients they can start now. */
1.324 + SetServerState(SERVER, SERVER_STATE_READY);
1.325 +
1.326 + /* Now wait for server death signal */
1.327 + WaitServerState(SERVER, SERVER_STATE_DYING);
1.328 +
1.329 + /* Cleanup */
1.330 + SetServerState(SERVER, SERVER_STATE_DEAD);
1.331 + }
1.332 +}
1.333 +
1.334 +/* --- Client Functions ------------------------------------------- */
1.335 +
1.336 +PRInt32 numRequests;
1.337 +PRInt32 numClients;
1.338 +PRMonitor *clientMonitor;
1.339 +
1.340 +void
1.341 +ClientThreadFunc(void *unused)
1.342 +{
1.343 + PRNetAddr serverAddr;
1.344 + PRFileDesc *clientSocket;
1.345 + char *sendBuf;
1.346 + char *recvBuf;
1.347 + PRInt32 rv;
1.348 + PRInt32 bytesNeeded;
1.349 +
1.350 + sendBuf = (char *)PR_MALLOC(_client_data * sizeof(char));
1.351 + if (!sendBuf)
1.352 + if (debug_mode) printf("\tClient could not malloc space!?\n");
1.353 + recvBuf = (char *)PR_MALLOC(_server_data * sizeof(char));
1.354 + if (!recvBuf)
1.355 + if (debug_mode) printf("\tClient could not malloc space!?\n");
1.356 +
1.357 + memset(&serverAddr, 0, sizeof(PRNetAddr));
1.358 + serverAddr.inet.family = PR_AF_INET;
1.359 + serverAddr.inet.port = PR_htons(PORT);
1.360 + serverAddr.inet.ip = PR_htonl(PR_INADDR_LOOPBACK);
1.361 +
1.362 + while(numRequests > 0) {
1.363 +
1.364 + if ( (numRequests % 10) == 0 )
1.365 + if (debug_mode) printf(".");
1.366 + if (debug_mode) DPRINTF("\tClient starting request %d\n", numRequests);
1.367 +
1.368 + clientSocket = PR_NewTCPSocket();
1.369 + if (!clientSocket) {
1.370 + if (debug_mode) printf("Client error creating socket: OS error %d\n",
1.371 + PR_GetOSError());
1.372 + continue;
1.373 + }
1.374 +
1.375 + if (debug_mode) DPRINTF("\tClient connecting\n");
1.376 +
1.377 + rv = PR_Connect(clientSocket,
1.378 + &serverAddr,
1.379 + PR_INTERVAL_NO_TIMEOUT);
1.380 + if (!clientSocket) {
1.381 + if (debug_mode) printf("\tClient error connecting\n");
1.382 + continue;
1.383 + }
1.384 +
1.385 + if (debug_mode) DPRINTF("\tClient connected\n");
1.386 +
1.387 + rv = PR_Send(clientSocket,
1.388 + sendBuf,
1.389 + _client_data,
1.390 + 0,
1.391 + PR_INTERVAL_NO_TIMEOUT);
1.392 + if (rv != _client_data) {
1.393 + if (debug_mode) printf("Client error sending data (%d)\n", rv);
1.394 + PR_Close(clientSocket);
1.395 + continue;
1.396 + }
1.397 +
1.398 + if (debug_mode) DPRINTF("\tClient sent %d bytes\n", rv);
1.399 +
1.400 + bytesNeeded = _server_data;
1.401 + while(bytesNeeded) {
1.402 + rv = PR_Recv(clientSocket,
1.403 + recvBuf,
1.404 + bytesNeeded,
1.405 + 0,
1.406 + PR_INTERVAL_NO_TIMEOUT);
1.407 + if (rv <= 0) {
1.408 + if (debug_mode) printf("Client error receiving data (%d) (%d/%d)\n",
1.409 + rv, (_server_data - bytesNeeded), _server_data);
1.410 + break;
1.411 + }
1.412 + if (debug_mode) DPRINTF("\tClient received %d bytes; need %d more\n", rv, bytesNeeded - rv);
1.413 + bytesNeeded -= rv;
1.414 + }
1.415 +
1.416 + PR_Close(clientSocket);
1.417 +
1.418 + PR_AtomicDecrement(&numRequests);
1.419 + }
1.420 +
1.421 + PR_EnterMonitor(clientMonitor);
1.422 + --numClients;
1.423 + PR_Notify(clientMonitor);
1.424 + PR_ExitMonitor(clientMonitor);
1.425 +
1.426 + PR_DELETE(sendBuf);
1.427 + PR_DELETE(recvBuf);
1.428 +}
1.429 +
1.430 +void
1.431 +RunClients(void)
1.432 +{
1.433 + PRInt32 index;
1.434 +
1.435 + numRequests = _iterations;
1.436 + numClients = _clients;
1.437 + clientMonitor = PR_NewMonitor();
1.438 +
1.439 + for (index=0; index<_clients; index++) {
1.440 + PRThread *clientThread;
1.441 +
1.442 +
1.443 + clientThread = PR_CreateThread(
1.444 + PR_USER_THREAD,
1.445 + ClientThreadFunc,
1.446 + NULL,
1.447 + PR_PRIORITY_NORMAL,
1.448 + ClientScope,
1.449 + PR_UNJOINABLE_THREAD,
1.450 + THREAD_STACKSIZE);
1.451 +
1.452 + if (!clientThread) {
1.453 + if (debug_mode) printf("\terror creating client thread %d\n", index);
1.454 + } else
1.455 + if (debug_mode) DPRINTF("\tMain created client %d/%d\n", index+1, _clients);
1.456 +
1.457 + }
1.458 +
1.459 + PR_EnterMonitor(clientMonitor);
1.460 + while(numClients)
1.461 + PR_Wait(clientMonitor, PR_INTERVAL_NO_TIMEOUT);
1.462 + PR_ExitMonitor(clientMonitor);
1.463 +}
1.464 +
1.465 +/* --- Main Function ---------------------------------------------- */
1.466 +
1.467 +static
1.468 +void do_work()
1.469 +{
1.470 + PRThread *ServerThread;
1.471 + PRInt32 state;
1.472 +
1.473 + SetServerState(MAIN, SERVER_STATE_STARTUP);
1.474 + ServerThread = PR_CreateThread(
1.475 + PR_USER_THREAD,
1.476 + ServerThreadFunc,
1.477 + NULL,
1.478 + PR_PRIORITY_NORMAL,
1.479 + ServerScope,
1.480 + PR_JOINABLE_THREAD,
1.481 + THREAD_STACKSIZE);
1.482 + if (!ServerThread) {
1.483 + if (debug_mode) printf("error creating main server thread\n");
1.484 + return;
1.485 + }
1.486 +
1.487 + /* Wait for server to be ready */
1.488 + state = WaitServerState(MAIN, SERVER_STATE_READY|SERVER_STATE_DEAD);
1.489 +
1.490 + if (!(state & SERVER_STATE_DEAD)) {
1.491 + /* Run Test Clients */
1.492 + RunClients();
1.493 +
1.494 + /* Send death signal to server */
1.495 + SetServerState(MAIN, SERVER_STATE_DYING);
1.496 + }
1.497 +
1.498 + PR_JoinThread(ServerThread);
1.499 +}
1.500 +
1.501 +static void do_workUU(void)
1.502 +{
1.503 + ServerScope = PR_LOCAL_THREAD;
1.504 + ClientScope = PR_LOCAL_THREAD;
1.505 + do_work();
1.506 +}
1.507 +
1.508 +static void do_workUK(void)
1.509 +{
1.510 + ServerScope = PR_LOCAL_THREAD;
1.511 + ClientScope = PR_GLOBAL_THREAD;
1.512 + do_work();
1.513 +}
1.514 +
1.515 +static void do_workKU(void)
1.516 +{
1.517 + ServerScope = PR_GLOBAL_THREAD;
1.518 + ClientScope = PR_LOCAL_THREAD;
1.519 + do_work();
1.520 +}
1.521 +
1.522 +static void do_workKK(void)
1.523 +{
1.524 + ServerScope = PR_GLOBAL_THREAD;
1.525 + ClientScope = PR_GLOBAL_THREAD;
1.526 + do_work();
1.527 +}
1.528 +
1.529 +
1.530 +static void Measure(void (*func)(void), const char *msg)
1.531 +{
1.532 + PRIntervalTime start, stop;
1.533 + double d;
1.534 +
1.535 + start = PR_IntervalNow();
1.536 + (*func)();
1.537 + stop = PR_IntervalNow();
1.538 +
1.539 + d = (double)PR_IntervalToMicroseconds(stop - start);
1.540 +
1.541 + if (debug_mode) printf("\n%40s: %6.2f usec\n", msg, d / _iterations);
1.542 +}
1.543 +
1.544 +
1.545 +int main(int argc, char **argv)
1.546 +{
1.547 + /* The command line argument: -d is used to determine if the test is being run
1.548 + in debug mode. The regress tool requires only one line output:PASS or FAIL.
1.549 + All of the printfs associated with this test has been handled with a if (debug_mode)
1.550 + test.
1.551 + Usage: test_name -d
1.552 + */
1.553 + PLOptStatus os;
1.554 + PLOptState *opt = PL_CreateOptState(argc, argv, "d:");
1.555 + while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
1.556 + {
1.557 + if (PL_OPT_BAD == os) continue;
1.558 + switch (opt->option)
1.559 + {
1.560 + case 'd': /* debug mode */
1.561 + debug_mode = 1;
1.562 + break;
1.563 + default:
1.564 + break;
1.565 + }
1.566 + }
1.567 + PL_DestroyOptState(opt);
1.568 +
1.569 + /* main test */
1.570 +#ifndef SYMBIAN
1.571 + if (debug_mode) {
1.572 + printf("Enter number of iterations: \n");
1.573 + scanf("%d", &_iterations);
1.574 + printf("Enter number of clients : \n");
1.575 + scanf("%d", &_clients);
1.576 + printf("Enter size of client data : \n");
1.577 + scanf("%d", &_client_data);
1.578 + printf("Enter size of server data : \n");
1.579 + scanf("%d", &_server_data);
1.580 + }
1.581 + else
1.582 +#endif
1.583 + {
1.584 +
1.585 + _iterations = 10;
1.586 + _clients = 1;
1.587 + _client_data = 10;
1.588 + _server_data = 10;
1.589 + }
1.590 +
1.591 + if (debug_mode) {
1.592 + printf("\n\n%d iterations with %d client threads.\n",
1.593 + _iterations, _clients);
1.594 + printf("Sending %d bytes of client data and %d bytes of server data\n",
1.595 + _client_data, _server_data);
1.596 + }
1.597 + PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
1.598 + PR_STDIO_INIT();
1.599 +
1.600 + ServerStateCVLock = PR_NewLock();
1.601 + ServerStateCV = PR_NewCondVar(ServerStateCVLock);
1.602 +
1.603 + Measure(do_workUU, "server loop user/user");
1.604 + #if 0
1.605 + Measure(do_workUK, "server loop user/kernel");
1.606 + Measure(do_workKU, "server loop kernel/user");
1.607 + Measure(do_workKK, "server loop kernel/kernel");
1.608 + #endif
1.609 +
1.610 + PR_Cleanup();
1.611 +
1.612 + return 0;
1.613 +}
