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gecko/nsprpub/pr/tests/server_test.c
Wan-Teh Chang 15e56094f4 Upgrade NSPR to NSPR_HEAD_20090321. This CVS tag includes 
the following changes:
- Bug 439144: fixed strict aliasing issues in prdtoa.c
- Bug 449665: suppress the parentheses warnings in prdtoa.c
- Bug 442706: build for Symbian OS with autoconf and GNU make
- Bug 432430: some more changes for the Symbian OS port
- Bug 476536: added PR_ASSERT_CURRENT_THREAD_OWNS_LOCK and
  PR_ASSERT_CURRENT_THREAD_IN_MONITOR.
- Bug 478687: made PRUint64/uint64 compatible with uint64_t
  for 64-bit Mac OS X
- Bug 480730: PR_LoadLibrary for 64-bit MAC OS X should not
  search DYLD_LIBRARY_PATH if the library is specified as a
  pathname
- Bug 480740: PR_ParseTimeString crash with dates >= year
  3001 when compiled with Visual C++ 2005.
- Bug 480074: better dependency resolution for import libraries
- Bug 469083: ported NSPR test programs to WINCE
- Bug 433790: removed some obsolete WIN16 code
2009-03-22 09:44:55 -07:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/***********************************************************************
**
** 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.
***********************************************************************/
/***********************************************************************
** Includes
***********************************************************************/
/* Used to get the command line option */
#include "plgetopt.h"
#include "nspr.h"
#include "pprthred.h"
#include <string.h>
#define PORT 15004
#define THREAD_STACKSIZE 0
#define PASS 0
#define FAIL 1
static int debug_mode = 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
/***********************************************************************
** PRIVATE FUNCTION: Test_Result
** DESCRIPTION: Used in conjunction with the regress tool, prints out the
** status of the test case.
** INPUTS: PASS/FAIL
** OUTPUTS: None
** RETURN: None
** SIDE EFFECTS:
**
** RESTRICTIONS:
** None
** MEMORY: NA
** ALGORITHM: Determine what the status is and print accordingly.
**
***********************************************************************/
static void Test_Result (int result)
{
switch (result)
{
case PASS:
printf ("PASS\n");
break;
case FAIL:
printf ("FAIL\n");
break;
default:
break;
}
}
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+(2*sizeof(PRNetAddr))+32, _client_data, (2*sizeof(PRNetAddr))+32);
dataBuf = (char *)PR_MALLOC(_client_data + 2*sizeof(PRNetAddr) + 32);
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);
#ifdef SYMBIAN
if (workerThreadsBusy == workerThreads && workerThreads<1) {
#else
if (workerThreadsBusy == workerThreads) {
#endif
PR_Lock(workerThreadsLock);
if (workerThreadsBusy == workerThreads) {
PRThread *WorkerThread;
WorkerThread = PR_CreateThread(
PR_SYSTEM_THREAD,
WorkerThreadFunc,
listenSock,
PR_PRIORITY_NORMAL,
ServerScope,
PR_UNJOINABLE_THREAD,
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 Test_Result(FAIL);
return NULL;
}
memset(&serverAddr, 0, sizeof(PRNetAddr));
serverAddr.inet.family = PR_AF_INET;
serverAddr.inet.port = PR_htons(PORT);
serverAddr.inet.ip = PR_htonl(PR_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 Test_Result(FAIL);
PR_Close(listenSocket);
return NULL;
}
if ( PR_Listen(listenSocket, 128) == PR_FAILURE) {
if (debug_mode) printf("\tServer error listening to server socket\n");
else Test_Result(FAIL);
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,
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 = PR_AF_INET;
serverAddr.inet.port = PR_htons(PORT);
serverAddr.inet.ip = PR_htonl(PR_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,
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,
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);
}
int 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 */
#ifndef SYMBIAN
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
#endif
{
_iterations = 10;
_clients = 1;
_client_data = 10;
_server_data = 10;
}
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();
ServerStateCVLock = PR_NewLock();
ServerStateCV = PR_NewCondVar(ServerStateCVLock);
Measure(do_workUU, "server loop user/user");
#if 0
Measure(do_workUK, "server loop user/kernel");
Measure(do_workKU, "server loop kernel/user");
Measure(do_workKK, "server loop kernel/kernel");
#endif
PR_Cleanup();
return 0;
}
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