summaryrefslogtreecommitdiffstats
path: root/nsprpub/pr/tests/thrpool_server.c
blob: 9665829a1abb39f058f8e2b0a629b9ea9e794a7f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/***********************************************************************
**
** Name: thrpool.c
**
** Description: Test threadpool functionality.
**
** Modification History:
*/
#include "primpl.h"

#include "plgetopt.h"

#include <stdio.h>
#include <string.h>
#include <errno.h>
#ifdef XP_UNIX
#include <sys/mman.h>
#endif
#if defined(_PR_PTHREADS) && !defined(_PR_DCETHREADS)
#include <pthread.h>
#endif

/* for getcwd */
#if defined(XP_UNIX) || defined (XP_OS2) || defined(XP_BEOS)
#include <unistd.h>
#elif defined(XP_PC)
#include <direct.h>
#endif

#ifdef WIN32
#include <process.h>
#endif

static int _debug_on = 0;
static char *program_name = NULL;
static void serve_client_write(void *arg);

#include "obsolete/prsem.h"

#ifdef XP_PC
#define mode_t int
#endif

#define DPRINTF(arg) if (_debug_on) printf arg


#define BUF_DATA_SIZE    (2 * 1024)
#define TCP_MESG_SIZE    1024
#define NUM_TCP_CLIENTS  10	/* for a listen queue depth of 5 */


#define NUM_TCP_CONNECTIONS_PER_CLIENT  10
#define NUM_TCP_MESGS_PER_CONNECTION    10
#define TCP_SERVER_PORT            		10000
#define SERVER_MAX_BIND_COUNT        	100

#ifdef WINCE
char *getcwd(char *buf, size_t size)
{
    wchar_t wpath[MAX_PATH];
    _wgetcwd(wpath, MAX_PATH);
    WideCharToMultiByte(CP_ACP, 0, wpath, -1, buf, size, 0, 0);
}
 
#define perror(s)
#endif

static PRInt32 num_tcp_clients = NUM_TCP_CLIENTS;
static PRInt32 num_tcp_connections_per_client = NUM_TCP_CONNECTIONS_PER_CLIENT;
static PRInt32 tcp_mesg_size = TCP_MESG_SIZE;
static PRInt32 num_tcp_mesgs_per_connection = NUM_TCP_MESGS_PER_CONNECTION;
static void TCP_Server_Accept(void *arg);


int failed_already=0;
typedef struct buffer {
    char    data[BUF_DATA_SIZE];
} buffer;


typedef struct Server_Param {
    PRJobIoDesc iod;    /* socket to read from/write to    */
    PRInt32    	datalen;    /* bytes of data transfered in each read/write */
    PRNetAddr	netaddr;
    PRMonitor	*exit_mon;    /* monitor to signal on exit            */
    PRInt32		*job_counterp;    /* counter to decrement, before exit        */
    PRInt32		conn_counter;    /* counter to decrement, before exit        */
	PRThreadPool *tp;
} Server_Param;

typedef struct Serve_Client_Param {
    PRJobIoDesc iod;    /* socket to read from/write to    */
    PRInt32    datalen;    /* bytes of data transfered in each read/write */
    PRMonitor *exit_mon;    /* monitor to signal on exit            */
    PRInt32 *job_counterp;    /* counter to decrement, before exit        */
	PRThreadPool *tp;
} Serve_Client_Param;

typedef struct Session {
    PRJobIoDesc iod;    /* socket to read from/write to    */
	buffer 	*in_buf;
	PRInt32 bytes;
	PRInt32 msg_num;
	PRInt32 bytes_read;
    PRMonitor *exit_mon;    /* monitor to signal on exit            */
    PRInt32 *job_counterp;    /* counter to decrement, before exit        */
	PRThreadPool *tp;
} Session;

static void
serve_client_read(void *arg)
{
	Session *sp = (Session *) arg;
    int rem;
    int bytes;
    int offset;
	PRFileDesc *sockfd;
	char *buf;
	PRJob *jobp;

	PRIntervalTime timeout = PR_INTERVAL_NO_TIMEOUT;

	sockfd = sp->iod.socket;
	buf = sp->in_buf->data;

    PR_ASSERT(sp->msg_num < num_tcp_mesgs_per_connection);
	PR_ASSERT(sp->bytes_read < sp->bytes);

	offset = sp->bytes_read;
	rem = sp->bytes - offset;
	bytes = PR_Recv(sockfd, buf + offset, rem, 0, timeout);
	if (bytes < 0) {
		return;
	}
	sp->bytes_read += bytes;
	sp->iod.timeout = PR_SecondsToInterval(60);
	if (sp->bytes_read <  sp->bytes) {
		jobp = PR_QueueJob_Read(sp->tp, &sp->iod, serve_client_read, sp,
							PR_FALSE);
		PR_ASSERT(NULL != jobp);
		return;
	}
	PR_ASSERT(sp->bytes_read == sp->bytes);
	DPRINTF(("serve_client: read complete, msg(%d) \n", sp->msg_num));

	sp->iod.timeout = PR_SecondsToInterval(60);
	jobp = PR_QueueJob_Write(sp->tp, &sp->iod, serve_client_write, sp,
							PR_FALSE);
	PR_ASSERT(NULL != jobp);

    return;
}

static void
serve_client_write(void *arg)
{
	Session *sp = (Session *) arg;
    int bytes;
	PRFileDesc *sockfd;
	char *buf;
	PRJob *jobp;

	sockfd = sp->iod.socket;
	buf = sp->in_buf->data;

    PR_ASSERT(sp->msg_num < num_tcp_mesgs_per_connection);

	bytes = PR_Send(sockfd, buf, sp->bytes, 0, PR_INTERVAL_NO_TIMEOUT);
	PR_ASSERT(bytes == sp->bytes);

	if (bytes < 0) {
		return;
	}
	DPRINTF(("serve_client: write complete, msg(%d) \n", sp->msg_num));
    sp->msg_num++;
    if (sp->msg_num < num_tcp_mesgs_per_connection) {
		sp->bytes_read = 0;
		sp->iod.timeout = PR_SecondsToInterval(60);
		jobp = PR_QueueJob_Read(sp->tp, &sp->iod, serve_client_read, sp,
							PR_FALSE);
		PR_ASSERT(NULL != jobp);
		return;
	}

	DPRINTF(("serve_client: read/write complete, msg(%d) \n", sp->msg_num));
    if (PR_Shutdown(sockfd, PR_SHUTDOWN_BOTH) < 0) {
        fprintf(stderr,"%s: ERROR - PR_Shutdown\n", program_name);
    }

    PR_Close(sockfd);
    PR_EnterMonitor(sp->exit_mon);
    --(*sp->job_counterp);
    PR_Notify(sp->exit_mon);
    PR_ExitMonitor(sp->exit_mon);

    PR_DELETE(sp->in_buf);
    PR_DELETE(sp);

    return;
}

/*
 * Serve_Client
 *    Thread, started by the server, for serving a client connection.
 *    Reads data from socket and writes it back, unmodified, and
 *    closes the socket
 */
static void PR_CALLBACK
Serve_Client(void *arg)
{
    Serve_Client_Param *scp = (Serve_Client_Param *) arg;
    buffer *in_buf;
	Session *sp;
	PRJob *jobp;

	sp = PR_NEW(Session);
	sp->iod = scp->iod;

    in_buf = PR_NEW(buffer);
    if (in_buf == NULL) {
        fprintf(stderr,"%s: failed to alloc buffer struct\n",program_name);
        failed_already=1;
        return;
    }

	sp->in_buf = in_buf;
	sp->bytes = scp->datalen;
	sp->msg_num = 0;
	sp->bytes_read = 0;
	sp->tp = scp->tp;
   	sp->exit_mon = scp->exit_mon;
    sp->job_counterp = scp->job_counterp;

	sp->iod.timeout = PR_SecondsToInterval(60);
	jobp = PR_QueueJob_Read(sp->tp, &sp->iod, serve_client_read, sp,
							PR_FALSE);
	PR_ASSERT(NULL != jobp);
	PR_DELETE(scp);
}

static void
print_stats(void *arg)
{
    Server_Param *sp = (Server_Param *) arg;
    PRThreadPool *tp = sp->tp;
    PRInt32 counter;
	PRJob *jobp;

	PR_EnterMonitor(sp->exit_mon);
	counter = (*sp->job_counterp);
	PR_ExitMonitor(sp->exit_mon);

	printf("PRINT_STATS: #client connections = %d\n",counter);


	jobp = PR_QueueJob_Timer(tp, PR_MillisecondsToInterval(500),
						print_stats, sp, PR_FALSE);

	PR_ASSERT(NULL != jobp);
}

static int job_counter = 0;
/*
 * TCP Server
 *    Server binds an address to a socket, starts a client process and
 *	  listens for incoming connections.
 *    Each client connects to the server and sends a chunk of data
 *    Starts a Serve_Client job for each incoming connection, to read
 *    the data from the client and send it back to the client, unmodified.
 *    Each client checks that data received from server is same as the
 *    data it sent to the server.
 *	  Finally, the threadpool is shutdown
 */
static void PR_CALLBACK
TCP_Server(void *arg)
{
    PRThreadPool *tp = (PRThreadPool *) arg;
    Server_Param *sp;
    PRFileDesc *sockfd;
    PRNetAddr netaddr;
	PRMonitor *sc_mon;
	PRJob *jobp;
	int i;
	PRStatus rval;

    /*
     * Create a tcp socket
     */
    if ((sockfd = PR_NewTCPSocket()) == NULL) {
        fprintf(stderr,"%s: PR_NewTCPSocket failed\n", program_name);
        return;
    }
    memset(&netaddr, 0 , sizeof(netaddr));
    netaddr.inet.family = PR_AF_INET;
    netaddr.inet.port = PR_htons(TCP_SERVER_PORT);
    netaddr.inet.ip = PR_htonl(PR_INADDR_ANY);
    /*
     * try a few times to bind server's address, if addresses are in
     * use
     */
	i = 0;
    while (PR_Bind(sockfd, &netaddr) < 0) {
        if (PR_GetError() == PR_ADDRESS_IN_USE_ERROR) {
            netaddr.inet.port += 2;
            if (i++ < SERVER_MAX_BIND_COUNT)
                continue;
        }
        fprintf(stderr,"%s: ERROR - PR_Bind failed\n", program_name);
        perror("PR_Bind");
        failed_already=1;
        return;
    }

    if (PR_Listen(sockfd, 32) < 0) {
        fprintf(stderr,"%s: ERROR - PR_Listen failed\n", program_name);
        failed_already=1;
        return;
    }

    if (PR_GetSockName(sockfd, &netaddr) < 0) {
        fprintf(stderr,"%s: ERROR - PR_GetSockName failed\n", program_name);
        failed_already=1;
        return;
    }

    DPRINTF((
	"TCP_Server: PR_BIND netaddr.inet.ip = 0x%lx, netaddr.inet.port = %d\n",
        netaddr.inet.ip, netaddr.inet.port));

	sp = PR_NEW(Server_Param);
	if (sp == NULL) {
		fprintf(stderr,"%s: PR_NEW failed\n", program_name);
		failed_already=1;
		return;
	}
	sp->iod.socket = sockfd;
	sp->iod.timeout = PR_SecondsToInterval(60);
	sp->datalen = tcp_mesg_size;
	sp->exit_mon = sc_mon;
	sp->job_counterp = &job_counter;
	sp->conn_counter = 0;
	sp->tp = tp;
	sp->netaddr = netaddr;

	/* create and cancel an io job */
	jobp = PR_QueueJob_Accept(tp, &sp->iod, TCP_Server_Accept, sp,
							PR_FALSE);
	PR_ASSERT(NULL != jobp);
	rval = PR_CancelJob(jobp);
	PR_ASSERT(PR_SUCCESS == rval);

	/*
	 * create the client process
	 */
	{
#define MAX_ARGS 4
		char *argv[MAX_ARGS + 1];
		int index = 0;
		char port[32];
        char path[1024 + sizeof("/thrpool_client")];

        getcwd(path, sizeof(path));

        (void)strcat(path, "/thrpool_client");
#ifdef XP_PC
        (void)strcat(path, ".exe");
#endif
        argv[index++] = path;
		sprintf(port,"%d",PR_ntohs(netaddr.inet.port));
        if (_debug_on)
        {
            argv[index++] = "-d";
            argv[index++] = "-p";
            argv[index++] = port;
            argv[index++] = NULL;
        } else {
            argv[index++] = "-p";
            argv[index++] = port;
			argv[index++] = NULL;
		}
		PR_ASSERT(MAX_ARGS >= (index - 1));
        
        DPRINTF(("creating client process %s ...\n", path));
        if (PR_FAILURE == PR_CreateProcessDetached(path, argv, NULL, NULL)) {
        	fprintf(stderr,
				"thrpool_server: ERROR - PR_CreateProcessDetached failed\n");
        	failed_already=1;
        	return;
		}
	}

    sc_mon = PR_NewMonitor();
    if (sc_mon == NULL) {
        fprintf(stderr,"%s: PR_NewMonitor failed\n", program_name);
        failed_already=1;
        return;
    }

	sp->iod.socket = sockfd;
	sp->iod.timeout = PR_SecondsToInterval(60);
	sp->datalen = tcp_mesg_size;
	sp->exit_mon = sc_mon;
	sp->job_counterp = &job_counter;
	sp->conn_counter = 0;
	sp->tp = tp;
	sp->netaddr = netaddr;

	/* create and cancel a timer job */
	jobp = PR_QueueJob_Timer(tp, PR_MillisecondsToInterval(5000),
						print_stats, sp, PR_FALSE);
	PR_ASSERT(NULL != jobp);
	rval = PR_CancelJob(jobp);
	PR_ASSERT(PR_SUCCESS == rval);

    DPRINTF(("TCP_Server: Accepting connections \n"));

	jobp = PR_QueueJob_Accept(tp, &sp->iod, TCP_Server_Accept, sp,
							PR_FALSE);
	PR_ASSERT(NULL != jobp);
	return;
}

static void
TCP_Server_Accept(void *arg)
{
    Server_Param *sp = (Server_Param *) arg;
    PRThreadPool *tp = sp->tp;
    Serve_Client_Param *scp;
	PRFileDesc *newsockfd;
	PRJob *jobp;

	if ((newsockfd = PR_Accept(sp->iod.socket, &sp->netaddr,
		PR_INTERVAL_NO_TIMEOUT)) == NULL) {
		fprintf(stderr,"%s: ERROR - PR_Accept failed\n", program_name);
		failed_already=1;
		goto exit;
	}
	scp = PR_NEW(Serve_Client_Param);
	if (scp == NULL) {
		fprintf(stderr,"%s: PR_NEW failed\n", program_name);
		failed_already=1;
		goto exit;
	}

	/*
	 * Start a Serve_Client job for each incoming connection
	 */
	scp->iod.socket = newsockfd;
	scp->iod.timeout = PR_SecondsToInterval(60);
	scp->datalen = tcp_mesg_size;
	scp->exit_mon = sp->exit_mon;
	scp->job_counterp = sp->job_counterp;
	scp->tp = sp->tp;

	PR_EnterMonitor(sp->exit_mon);
	(*sp->job_counterp)++;
	PR_ExitMonitor(sp->exit_mon);
	jobp = PR_QueueJob(tp, Serve_Client, scp,
						PR_FALSE);

	PR_ASSERT(NULL != jobp);
	DPRINTF(("TCP_Server: Created Serve_Client = 0x%lx\n", jobp));

	/*
	 * single-threaded update; no lock needed
	 */
    sp->conn_counter++;
    if (sp->conn_counter <
			(num_tcp_clients * num_tcp_connections_per_client)) {
		jobp = PR_QueueJob_Accept(tp, &sp->iod, TCP_Server_Accept, sp,
								PR_FALSE);
		PR_ASSERT(NULL != jobp);
		return;
	}
	jobp = PR_QueueJob_Timer(tp, PR_MillisecondsToInterval(500),
						print_stats, sp, PR_FALSE);

	PR_ASSERT(NULL != jobp);
	DPRINTF(("TCP_Server: Created print_stats timer job = 0x%lx\n", jobp));

exit:
	PR_EnterMonitor(sp->exit_mon);
    /* Wait for server jobs to finish */
    while (0 != *sp->job_counterp) {
        PR_Wait(sp->exit_mon, PR_INTERVAL_NO_TIMEOUT);
        DPRINTF(("TCP_Server: conn_counter = %d\n",
												*sp->job_counterp));
    }

    PR_ExitMonitor(sp->exit_mon);
    if (sp->iod.socket) {
        PR_Close(sp->iod.socket);
    }
	PR_DestroyMonitor(sp->exit_mon);
    printf("%30s","TCP_Socket_Client_Server_Test:");
    printf("%2ld Server %2ld Clients %2ld connections_per_client\n",1l,
        num_tcp_clients, num_tcp_connections_per_client);
    printf("%30s %2ld messages_per_connection %4ld bytes_per_message\n",":",
        num_tcp_mesgs_per_connection, tcp_mesg_size);

	DPRINTF(("%s: calling PR_ShutdownThreadPool\n", program_name));
	PR_ShutdownThreadPool(sp->tp);
	PR_DELETE(sp);
}

/************************************************************************/

#define DEFAULT_INITIAL_THREADS		4
#define DEFAULT_MAX_THREADS			100
#define DEFAULT_STACKSIZE			(512 * 1024)

int main(int argc, char **argv)
{
	PRInt32 initial_threads = DEFAULT_INITIAL_THREADS;
	PRInt32 max_threads = DEFAULT_MAX_THREADS;
	PRInt32 stacksize = DEFAULT_STACKSIZE;
	PRThreadPool *tp = NULL;
	PRStatus rv;
	PRJob *jobp;

    /*
     * -d           debug mode
     */
    PLOptStatus os;
    PLOptState *opt;

	program_name = argv[0];
    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_on = 1;
            break;
        default:
            break;
        }
    }
    PL_DestroyOptState(opt);

    PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
    PR_STDIO_INIT();

    PR_SetConcurrency(4);

	tp = PR_CreateThreadPool(initial_threads, max_threads, stacksize);
    if (NULL == tp) {
        printf("PR_CreateThreadPool failed\n");
        failed_already=1;
        goto done;
	}
	jobp = PR_QueueJob(tp, TCP_Server, tp, PR_TRUE);
	rv = PR_JoinJob(jobp);		
	PR_ASSERT(PR_SUCCESS == rv);

	DPRINTF(("%s: calling PR_JoinThreadPool\n", program_name));
	rv = PR_JoinThreadPool(tp);
	PR_ASSERT(PR_SUCCESS == rv);
	DPRINTF(("%s: returning from PR_JoinThreadPool\n", program_name));

done:
    PR_Cleanup();
    if (failed_already) return 1;
    else return 0;
}