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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /*
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- /***********************************************************************
- **
- ** This server simulates a server running in loopback mode.
- **
- ** The idea is that a single server is created. The server initially creates
- ** a number of worker threads. Then, with the server running, a number of
- ** clients are created which start requesting service from the server.
- **
- **
- ** Modification History:
- ** 19-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
- ** The debug mode will print all of the printfs associated with this test.
- ** The regress mode will be the default mode. Since the regress tool limits
- ** the output to a one line status:PASS or FAIL,all of the printf statements
- ** have been handled with an if (debug_mode) statement.
- ** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
- ** recognize the return code from tha main program.
- ***********************************************************************/
-
- /***********************************************************************
- ** Includes
- ***********************************************************************/
- /* Used to get the command line option */
- #include "plgetopt.h"
-
- #include "nspr.h"
- #include "pprthred.h"
-
- #include <string.h>
-
- #define PORT 15004
- #define STACKSIZE 0
-
- static int _iterations = 1000;
- static int _clients = 1;
- static int _client_data = 250;
- static int _server_data = (8*1024);
-
- static PRThreadScope ServerScope, ClientScope;
-
- #define SERVER "Server"
- #define MAIN "Main"
-
- #define SERVER_STATE_STARTUP 0
- #define SERVER_STATE_READY 1
- #define SERVER_STATE_DYING 2
- #define SERVER_STATE_DEAD 4
- int ServerState;
- PRLock *ServerStateCVLock;
- PRCondVar *ServerStateCV;
-
- #undef DEBUGPRINTS
- #ifdef DEBUGPRINTS
- #define DPRINTF printf
- #else
- #define DPRINTF
- #endif
-
- PRIntn failed_already=0;
- PRIntn debug_mode;
- static void do_work(void);
-
- /* --- Server state functions --------------------------------------------- */
- void
- SetServerState(char *waiter, PRInt32 state)
- {
- PR_Lock(ServerStateCVLock);
- ServerState = state;
- PR_NotifyCondVar(ServerStateCV);
-
- if (debug_mode) DPRINTF("\t%s changed state to %d\n", waiter, state);
-
- PR_Unlock(ServerStateCVLock);
- }
-
- int
- WaitServerState(char *waiter, PRInt32 state)
- {
- PRInt32 rv;
-
- PR_Lock(ServerStateCVLock);
-
- if (debug_mode) DPRINTF("\t%s waiting for state %d\n", waiter, state);
-
- while(!(ServerState & state))
- PR_WaitCondVar(ServerStateCV, PR_INTERVAL_NO_TIMEOUT);
- rv = ServerState;
-
- if (debug_mode) DPRINTF("\t%s resuming from wait for state %d; state now %d\n",
- waiter, state, ServerState);
- PR_Unlock(ServerStateCVLock);
-
- return rv;
- }
-
- /* --- Server Functions ------------------------------------------- */
-
- PRLock *workerThreadsLock;
- PRInt32 workerThreads;
- PRInt32 workerThreadsBusy;
-
- void
- WorkerThreadFunc(void *_listenSock)
- {
- PRFileDesc *listenSock = (PRFileDesc *)_listenSock;
- PRInt32 bytesRead;
- PRInt32 bytesWritten;
- char *dataBuf;
- char *sendBuf;
-
- if (debug_mode) DPRINTF("\tServer buffer is %d bytes; %d data, %d netaddrs\n",
- _client_data+(4*sizeof(PRNetAddr)), _client_data, (4*sizeof(PRNetAddr)));
- dataBuf = (char *)PR_MALLOC(_client_data *sizeof(char) + 4*sizeof(PRNetAddr));
- if (!dataBuf)
- if (debug_mode) printf("\tServer could not malloc space!?\n");
- sendBuf = (char *)PR_MALLOC(_server_data *sizeof(char));
- if (!sendBuf)
- if (debug_mode) printf("\tServer could not malloc space!?\n");
-
- if (debug_mode) DPRINTF("\tServer worker thread running\n");
-
- while(1) {
- PRInt32 bytesToRead = _client_data;
- PRInt32 bytesToWrite = _server_data;
- PRFileDesc *newSock;
- PRNetAddr *rAddr;
- PRInt32 loops = 0;
-
- loops++;
-
- if (debug_mode) DPRINTF("\tServer thread going into accept\n");
-
- bytesRead = PR_AcceptRead(listenSock,
- &newSock,
- &rAddr,
- dataBuf,
- bytesToRead,
- PR_INTERVAL_NO_TIMEOUT);
-
- if (bytesRead < 0) {
- if (debug_mode) printf("\tServer error in accept (%d)\n", bytesRead);
- continue;
- }
-
- if (debug_mode) DPRINTF("\tServer accepted connection (%d bytes)\n", bytesRead);
-
- PR_AtomicIncrement(&workerThreadsBusy);
- if (workerThreadsBusy == workerThreads) {
-
- PR_Lock(workerThreadsLock);
- if (workerThreadsBusy == workerThreads) {
- PRThread *WorkerThread;
-
- WorkerThread = PR_CreateThread(
- PR_SYSTEM_THREAD,
- WorkerThreadFunc,
- listenSock,
- PR_PRIORITY_NORMAL,
- ServerScope,
- PR_UNJOINABLE_THREAD,
- STACKSIZE);
-
- if (!WorkerThread)
- if (debug_mode) printf("Error creating client thread %d\n", workerThreads);
- else {
- PR_AtomicIncrement(&workerThreads);
- if (debug_mode) DPRINTF("\tServer creates worker (%d)\n", workerThreads);
- }
- }
- PR_Unlock(workerThreadsLock);
- }
-
- bytesToRead -= bytesRead;
- while (bytesToRead) {
- bytesRead = PR_Recv(newSock,
- dataBuf,
- bytesToRead,
- 0,
- PR_INTERVAL_NO_TIMEOUT);
- if (bytesRead < 0) {
- if (debug_mode) printf("\tServer error receiving data (%d)\n", bytesRead);
- continue;
- }
- if (debug_mode) DPRINTF("\tServer received %d bytes\n", bytesRead);
- }
-
- bytesWritten = PR_Send(newSock,
- sendBuf,
- bytesToWrite,
- 0,
- PR_INTERVAL_NO_TIMEOUT);
- if (bytesWritten != _server_data)
- if (debug_mode) printf("\tError sending data to client (%d, %d)\n",
- bytesWritten, PR_GetOSError());
- else
- if (debug_mode) DPRINTF("\tServer sent %d bytes\n", bytesWritten);
-
- PR_Close(newSock);
- PR_AtomicDecrement(&workerThreadsBusy);
- }
- }
-
- PRFileDesc *
- ServerSetup(void)
- {
- PRFileDesc *listenSocket;
- PRNetAddr serverAddr;
- PRThread *WorkerThread;
-
- if ( (listenSocket = PR_NewTCPSocket()) == NULL) {
- if (debug_mode) printf("\tServer error creating listen socket\n");
- else failed_already=1;
- return NULL;
- }
-
- memset(&serverAddr, 0, sizeof(PRNetAddr));
- serverAddr.inet.family = AF_INET;
- serverAddr.inet.port = PR_htons(PORT);
- serverAddr.inet.ip = PR_htonl(INADDR_ANY);
-
- if ( PR_Bind(listenSocket, &serverAddr) == PR_FAILURE) {
- if (debug_mode) printf("\tServer error binding to server address: OS error %d\n",
- PR_GetOSError());
- else failed_already=1;
- PR_Close(listenSocket);
- return NULL;
- }
-
- if ( PR_Listen(listenSocket, 128) == PR_FAILURE) {
- if (debug_mode) printf("\tServer error listening to server socket\n");
- else failed_already=1;
- PR_Close(listenSocket);
-
- return NULL;
- }
-
- /* Create Clients */
- workerThreads = 0;
- workerThreadsBusy = 0;
-
- workerThreadsLock = PR_NewLock();
-
- WorkerThread = PR_CreateThread(
- PR_SYSTEM_THREAD,
- WorkerThreadFunc,
- listenSocket,
- PR_PRIORITY_NORMAL,
- ServerScope,
- PR_UNJOINABLE_THREAD,
- STACKSIZE);
-
- if (!WorkerThread) {
- if (debug_mode) printf("error creating working thread\n");
- PR_Close(listenSocket);
- return NULL;
- }
- PR_AtomicIncrement(&workerThreads);
- if (debug_mode) DPRINTF("\tServer created primordial worker thread\n");
-
- return listenSocket;
- }
-
- /* The main server loop */
- void
- ServerThreadFunc(void *unused)
- {
- PRFileDesc *listenSocket;
-
- /* Do setup */
- listenSocket = ServerSetup();
-
- if (!listenSocket) {
- SetServerState(SERVER, SERVER_STATE_DEAD);
- } else {
-
- if (debug_mode) DPRINTF("\tServer up\n");
-
- /* Tell clients they can start now. */
- SetServerState(SERVER, SERVER_STATE_READY);
-
- /* Now wait for server death signal */
- WaitServerState(SERVER, SERVER_STATE_DYING);
-
- /* Cleanup */
- SetServerState(SERVER, SERVER_STATE_DEAD);
- }
- }
-
- /* --- Client Functions ------------------------------------------- */
-
- PRInt32 numRequests;
- PRInt32 numClients;
- PRMonitor *clientMonitor;
-
- void
- ClientThreadFunc(void *unused)
- {
- PRNetAddr serverAddr;
- PRFileDesc *clientSocket;
- char *sendBuf;
- char *recvBuf;
- PRInt32 rv;
- PRInt32 bytesNeeded;
-
- sendBuf = (char *)PR_MALLOC(_client_data * sizeof(char));
- if (!sendBuf)
- if (debug_mode) printf("\tClient could not malloc space!?\n");
- recvBuf = (char *)PR_MALLOC(_server_data * sizeof(char));
- if (!recvBuf)
- if (debug_mode) printf("\tClient could not malloc space!?\n");
-
- memset(&serverAddr, 0, sizeof(PRNetAddr));
- serverAddr.inet.family = AF_INET;
- serverAddr.inet.port = PR_htons(PORT);
- serverAddr.inet.ip = PR_htonl(INADDR_LOOPBACK);
-
- while(numRequests > 0) {
-
- if ( (numRequests % 10) == 0 )
- if (debug_mode) printf(".");
- if (debug_mode) DPRINTF("\tClient starting request %d\n", numRequests);
-
- clientSocket = PR_NewTCPSocket();
- if (!clientSocket) {
- if (debug_mode) printf("Client error creating socket: OS error %d\n",
- PR_GetOSError());
- continue;
- }
-
- if (debug_mode) DPRINTF("\tClient connecting\n");
-
- rv = PR_Connect(clientSocket,
- &serverAddr,
- PR_INTERVAL_NO_TIMEOUT);
- if (!clientSocket) {
- if (debug_mode) printf("\tClient error connecting\n");
- continue;
- }
-
- if (debug_mode) DPRINTF("\tClient connected\n");
-
- rv = PR_Send(clientSocket,
- sendBuf,
- _client_data,
- 0,
- PR_INTERVAL_NO_TIMEOUT);
- if (rv != _client_data) {
- if (debug_mode) printf("Client error sending data (%d)\n", rv);
- PR_Close(clientSocket);
- continue;
- }
-
- if (debug_mode) DPRINTF("\tClient sent %d bytes\n", rv);
-
- bytesNeeded = _server_data;
- while(bytesNeeded) {
- rv = PR_Recv(clientSocket,
- recvBuf,
- bytesNeeded,
- 0,
- PR_INTERVAL_NO_TIMEOUT);
- if (rv <= 0) {
- if (debug_mode) printf("Client error receiving data (%d) (%d/%d)\n",
- rv, (_server_data - bytesNeeded), _server_data);
- break;
- }
- if (debug_mode) DPRINTF("\tClient received %d bytes; need %d more\n", rv, bytesNeeded - rv);
- bytesNeeded -= rv;
- }
-
- PR_Close(clientSocket);
-
- PR_AtomicDecrement(&numRequests);
- }
-
- PR_EnterMonitor(clientMonitor);
- --numClients;
- PR_Notify(clientMonitor);
- PR_ExitMonitor(clientMonitor);
-
- PR_DELETE(sendBuf);
- PR_DELETE(recvBuf);
- }
-
- void
- RunClients(void)
- {
- PRInt32 index;
-
- numRequests = _iterations;
- numClients = _clients;
- clientMonitor = PR_NewMonitor();
-
- for (index=0; index<_clients; index++) {
- PRThread *clientThread;
-
-
- clientThread = PR_CreateThread(
- PR_USER_THREAD,
- ClientThreadFunc,
- NULL,
- PR_PRIORITY_NORMAL,
- ClientScope,
- PR_UNJOINABLE_THREAD,
- STACKSIZE);
-
- if (!clientThread) {
- if (debug_mode) printf("\terror creating client thread %d\n", index);
- } else
- if (debug_mode) DPRINTF("\tMain created client %d/%d\n", index+1, _clients);
-
- }
-
- PR_EnterMonitor(clientMonitor);
- while(numClients)
- PR_Wait(clientMonitor, PR_INTERVAL_NO_TIMEOUT);
- PR_ExitMonitor(clientMonitor);
- }
-
- /* --- Main Function ---------------------------------------------- */
-
- static
- void do_work()
- {
- PRThread *ServerThread;
- PRInt32 state;
-
- SetServerState(MAIN, SERVER_STATE_STARTUP);
- ServerThread = PR_CreateThread(
- PR_USER_THREAD,
- ServerThreadFunc,
- NULL,
- PR_PRIORITY_NORMAL,
- ServerScope,
- PR_JOINABLE_THREAD,
- STACKSIZE);
- if (!ServerThread) {
- if (debug_mode) printf("error creating main server thread\n");
- return;
- }
-
- /* Wait for server to be ready */
- state = WaitServerState(MAIN, SERVER_STATE_READY|SERVER_STATE_DEAD);
-
- if (!(state & SERVER_STATE_DEAD)) {
- /* Run Test Clients */
- RunClients();
-
- /* Send death signal to server */
- SetServerState(MAIN, SERVER_STATE_DYING);
- }
-
- PR_JoinThread(ServerThread);
- }
-
- static void do_workUU(void)
- {
- ServerScope = PR_LOCAL_THREAD;
- ClientScope = PR_LOCAL_THREAD;
- do_work();
- }
-
- static void do_workUK(void)
- {
- ServerScope = PR_LOCAL_THREAD;
- ClientScope = PR_GLOBAL_THREAD;
- do_work();
- }
-
- static void do_workKU(void)
- {
- ServerScope = PR_GLOBAL_THREAD;
- ClientScope = PR_LOCAL_THREAD;
- do_work();
- }
-
- static void do_workKK(void)
- {
- ServerScope = PR_GLOBAL_THREAD;
- ClientScope = PR_GLOBAL_THREAD;
- do_work();
- }
-
-
- static void Measure(void (*func)(void), const char *msg)
- {
- PRIntervalTime start, stop;
- double d;
-
- start = PR_IntervalNow();
- (*func)();
- stop = PR_IntervalNow();
-
- d = (double)PR_IntervalToMicroseconds(stop - start);
-
- if (debug_mode) printf("\n%40s: %6.2f usec\n", msg, d / _iterations);
- }
-
-
- main(int argc, char **argv)
- {
- /* The command line argument: -d is used to determine if the test is being run
- in debug mode. The regress tool requires only one line output:PASS or FAIL.
- All of the printfs associated with this test has been handled with a if (debug_mode)
- test.
- Usage: test_name -d
- */
- PLOptStatus os;
- PLOptState *opt = PL_CreateOptState(argc, argv, "d:");
- while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
- {
- if (PL_OPT_BAD == os) continue;
- switch (opt->option)
- {
- case 'd': /* debug mode */
- debug_mode = 1;
- break;
- default:
- break;
- }
- }
- PL_DestroyOptState(opt);
-
- /* main test */
- if (debug_mode) {
- printf("Enter number of iterations: \n");
- scanf("%d", &_iterations);
- printf("Enter number of clients : \n");
- scanf("%d", &_clients);
- printf("Enter size of client data : \n");
- scanf("%d", &_client_data);
- printf("Enter size of server data : \n");
- scanf("%d", &_server_data);
- }
- else {
- _iterations = 7;
- _clients = 7;
- _client_data = 100;
- _server_data = 100;
- }
-
- if (debug_mode) {
- printf("\n\n%d iterations with %d client threads.\n",
- _iterations, _clients);
- printf("Sending %d bytes of client data and %d bytes of server data\n",
- _client_data, _server_data);
- }
- PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
- PR_STDIO_INIT();
-
- PR_SetThreadRecycleMode(64);
-
- ServerStateCVLock = PR_NewLock();
- ServerStateCV = PR_NewCondVar(ServerStateCVLock);
-
-
- Measure(do_workKK, "server loop kernel/kernel");
-
- PR_Cleanup();
-
- if(failed_already)
- return 1;
- else
- return 0;
-
- }
-