ctdb/ib/ibwrapper_test.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * Test the infiniband wrapper.
   4  *
   5  * Copyright (C) Sven Oehme <oehmes@de.ibm.com> 2006
   6  *
   7  * Major code contributions by Peter Somogyi <psomogyi@gamax.hu>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 3 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #include "replace.h"
  24 #include "system/network.h"
  25 #include "system/time.h"
  26 #include "system/wait.h"
  27
  28 #include <assert.h>
  29 #include <talloc.h>
  30 #include <tevent.h>
  31
  32 #include "lib/util/time.h"
  33 #include "lib/util/debug.h"
  34
  35 #include "common/logging.h"
  36
  37 #include "ib/ibwrapper.h"
  38
  39 struct ibwtest_ctx {
  40         int     is_server;
  41         char    *id; /* my id */
  42
  43         struct ibw_initattr *attrs;
  44         int     nattrs;
  45         char    *opts; /* option string */
  46
  47         struct sockaddr_in *addrs; /* dynamic array of dest addrs */
  48         int     naddrs;
  49
  50         unsigned int    nsec; /* delta times between messages in nanosec */
  51         unsigned int    sleep_usec; /* microsecs to sleep in the main loop to emulate overloading */
  52         uint32_t        maxsize; /* maximum variable message size */
  53
  54         int     cnt;
  55         int     nsent;
  56
  57         int     nmsg; /* number of messages to send (client) */
  58
  59         int     kill_me;
  60         int     stopping;
  61         int     error;
  62         struct ibw_ctx  *ibwctx;
  63
  64         struct timeval  start_time, end_time;
  65 };
  66
  67 struct ibwtest_conn {
  68         char    *id;
  69 };
  70
  71 enum testopcode {
  72         TESTOP_SEND_ID = 1,
  73         TESTOP_SEND_TEXT = 2,
  74         TESTOP_SEND_RND = 3
  75 };
  76
  77 static int ibwtest_connect_everybody(struct ibwtest_ctx *tcx)
  78 {
  79         struct ibw_conn         *conn;
  80         struct ibwtest_conn     *tconn = talloc_zero(tcx, struct ibwtest_conn);
  81         int     i;
  82
  83         for(i=0; i<tcx->naddrs; i++) {
  84                 conn = ibw_conn_new(tcx->ibwctx, tconn);
  85                 if (ibw_connect(conn, &tcx->addrs[i], tconn)) {
  86                         fprintf(stderr, "ibw_connect error at %d\n", i);
  87                         return -1;
  88                 }
  89         }
  90         DEBUG(DEBUG_DEBUG, ("sent %d connect request...\n", tcx->naddrs));
  91
  92         return 0;
  93 }
  94
  95 static int ibwtest_send_id(struct ibw_conn *conn)
  96 {
  97         struct ibwtest_ctx *tcx = talloc_get_type(conn->ctx->ctx_userdata, struct ibwtest_ctx);
  98         char *buf;
  99         void *key;
 100         uint32_t        len;
 101
 102         DEBUG(DEBUG_DEBUG, ("ibwtest_send_id\n"));
 103         len = sizeof(uint32_t)+strlen(tcx->id)+2;
 104         if (ibw_alloc_send_buf(conn, (void **)&buf, &key, len)) {
 105                 DEBUG(DEBUG_ERR, ("send_id: ibw_alloc_send_buf failed\n"));
 106                 return -1;
 107         }
 108
 109         /* first sizeof(uint32_t) size bytes are for length */
 110         *((uint32_t *)buf) = len;
 111         buf[sizeof(uint32_t)] = (char)TESTOP_SEND_ID;
 112         strcpy(buf+sizeof(uint32_t)+1, tcx->id);
 113
 114         if (ibw_send(conn, buf, key, len)) {
 115                 DEBUG(DEBUG_ERR, ("send_id: ibw_send error\n"));
 116                 return -1;
 117         }
 118         tcx->nsent++;
 119
 120         return 0;
 121 }
 122
 123 static int ibwtest_send_test_msg(struct ibwtest_ctx *tcx, struct ibw_conn *conn, const char *msg)
 124 {
 125         char *buf, *p;
 126         void *key;
 127         uint32_t len;
 128
 129         if (conn->state!=IBWC_CONNECTED)
 130                 return 0; /* not yet up */
 131
 132         len = strlen(msg) + 2 + sizeof(uint32_t);
 133         if (ibw_alloc_send_buf(conn, (void **)&buf, &key, len)) {
 134                 fprintf(stderr, "send_test_msg: ibw_alloc_send_buf failed\n");
 135                 return -1;
 136         }
 137
 138         *((uint32_t *)buf) = len;
 139         p = buf;
 140         p += sizeof(uint32_t);
 141         p[0] = (char)TESTOP_SEND_TEXT;
 142         p++;
 143         strcpy(p, msg);
 144
 145         if (ibw_send(conn, buf, key, len)) {
 146                 DEBUG(DEBUG_ERR, ("send_test_msg: ibw_send error\n"));
 147                 return -1;
 148         }
 149         tcx->nsent++;
 150
 151         return 0;
 152 }
 153
 154 static unsigned char ibwtest_fill_random(unsigned char *buf, uint32_t size)
 155 {
 156         uint32_t        i = size;
 157         unsigned char   sum = 0;
 158         unsigned char   value;
 159         while(i) {
 160                 i--;
 161                 value = (unsigned char)(256.0 * (rand() / (RAND_MAX + 1.0)));
 162                 buf[i] = value;
 163                 sum += value;
 164         }
 165         return sum;
 166 }
 167
 168 static unsigned char ibwtest_get_sum(unsigned char *buf, uint32_t size)
 169 {
 170         uint32_t        i = size;
 171         unsigned char   sum = 0;
 172
 173         while(i) {
 174                 i--;
 175                 sum += buf[i];
 176         }
 177         return sum;
 178 }
 179
 180 static int ibwtest_do_varsize_scenario_conn_size(struct ibwtest_ctx *tcx, struct ibw_conn *conn, uint32_t size)
 181 {
 182         unsigned char *buf;
 183         void    *key;
 184         uint32_t        len;
 185         unsigned char   sum;
 186
 187         len = sizeof(uint32_t) + 1 + size + 1;
 188         if (ibw_alloc_send_buf(conn, (void **)&buf, &key, len)) {
 189                 DEBUG(DEBUG_ERR, ("varsize/ibw_alloc_send_buf failed\n"));
 190                 return -1;
 191         }
 192         *((uint32_t *)buf) = len;
 193         buf[sizeof(uint32_t)] = TESTOP_SEND_RND;
 194         sum = ibwtest_fill_random(buf + sizeof(uint32_t) + 1, size);
 195         buf[sizeof(uint32_t) + 1 + size] = sum;
 196         if (ibw_send(conn, buf, key, len)) {
 197                 DEBUG(DEBUG_ERR, ("varsize/ibw_send failed\n"));
 198                 return -1;
 199         }
 200         tcx->nsent++;
 201
 202         return 0;
 203 }
 204
 205 static int ibwtest_do_varsize_scenario_conn(struct ibwtest_ctx *tcx, struct ibw_conn *conn)
 206 {
 207         uint32_t        size;
 208         int     i;
 209
 210         for(i=0; i<tcx->nmsg; i++)
 211         {
 212                 //size = (uint32_t)((float)(tcx->maxsize) * (rand() / (RAND_MAX + 1.0)));
 213                 size = (uint32_t)((float)(tcx->maxsize) * ((float)(i+1)/(float)tcx->nmsg));
 214                 if (ibwtest_do_varsize_scenario_conn_size(tcx, conn, size))
 215                         return -1;
 216         }
 217         return 0;
 218 }
 219
 220 /*int ibwtest_do_varsize_scenario(ibwtest_ctx *tcx)
 221 {
 222         int     rc;
 223         struct ibw_conn *conn;
 224
 225         for(conn=tcx->ibwctx->conn_list; conn!=NULL; conn=conn->next) {
 226                 if (conn->state==IBWC_CONNECTED) {
 227                         rc = ibwtest_do_varsize_scenario_conn(tcx, conn);
 228                         if (rc)
 229                                 tcx->error = rc;
 230                 }
 231         }
 232 }*/
 233
 234 static int ibwtest_connstate_handler(struct ibw_ctx *ctx, struct ibw_conn *conn)
 235 {
 236         struct ibwtest_ctx      *tcx = NULL; /* userdata */
 237         struct ibwtest_conn     *tconn = NULL; /* userdata */
 238
 239         if (ctx) {
 240                 tcx = talloc_get_type(ctx->ctx_userdata, struct ibwtest_ctx);
 241
 242                 switch(ctx->state) {
 243                 case IBWS_INIT:
 244                         DEBUG(DEBUG_DEBUG, ("test IBWS_INIT\n"));
 245                         break;
 246                 case IBWS_READY:
 247                         DEBUG(DEBUG_DEBUG, ("test IBWS_READY\n"));
 248                         break;
 249                 case IBWS_CONNECT_REQUEST:
 250                         DEBUG(DEBUG_DEBUG, ("test IBWS_CONNECT_REQUEST\n"));
 251                         tconn = talloc_zero(conn, struct ibwtest_conn);
 252                         if (ibw_accept(ctx, conn, tconn)) {
 253                                 DEBUG(DEBUG_ERR, ("error accepting the connect request\n"));
 254                         }
 255                         break;
 256                 case IBWS_STOPPED:
 257                         DEBUG(DEBUG_DEBUG, ("test IBWS_STOPPED\n"));
 258                         tcx->kill_me = 1; /* main loop can exit */
 259                         break;
 260                 case IBWS_ERROR:
 261                         DEBUG(DEBUG_DEBUG, ("test IBWS_ERROR\n"));
 262                         ibw_stop(tcx->ibwctx);
 263                         break;
 264                 default:
 265                         assert(0);
 266                         break;
 267                 }
 268         }
 269
 270         if (conn) {
 271                 tconn = talloc_get_type(conn->conn_userdata, struct ibwtest_conn);
 272                 switch(conn->state) {
 273                 case IBWC_INIT:
 274                         DEBUG(DEBUG_DEBUG, ("test IBWC_INIT\n"));
 275                         break;
 276                 case IBWC_CONNECTED:
 277                         if (gettimeofday(&tcx->start_time, NULL)) {
 278                                 DEBUG(DEBUG_ERR, ("gettimeofday error %d", errno));
 279                                 return -1;
 280                         }
 281                         ibwtest_send_id(conn);
 282                         break;
 283                 case IBWC_DISCONNECTED:
 284                         DEBUG(DEBUG_DEBUG, ("test IBWC_DISCONNECTED\n"));
 285                         talloc_free(conn);
 286                         break;
 287                 case IBWC_ERROR:
 288                         DEBUG(DEBUG_DEBUG, ("test IBWC_ERROR %s\n", ibw_getLastError()));
 289                         break;
 290                 default:
 291                         assert(0);
 292                         break;
 293                 }
 294         }
 295         return 0;
 296 }
 297
 298 static int ibwtest_receive_handler(struct ibw_conn *conn, void *buf, int n)
 299 {
 300         struct ibwtest_conn *tconn;
 301         enum testopcode op;
 302         struct ibwtest_ctx *tcx = talloc_get_type(conn->ctx->ctx_userdata, struct ibwtest_ctx);
 303         int     rc = 0;
 304
 305         assert(conn!=NULL);
 306         assert(n>=sizeof(uint32_t)+1);
 307         tconn = talloc_get_type(conn->conn_userdata, struct ibwtest_conn);
 308
 309         op = (enum testopcode)((char *)buf)[sizeof(uint32_t)];
 310         if (op==TESTOP_SEND_ID) {
 311                 tconn->id = talloc_strdup(tconn, ((char *)buf)+sizeof(uint32_t)+1);
 312         }
 313         if (op==TESTOP_SEND_ID || op==TESTOP_SEND_TEXT) {
 314                 DEBUG(DEBUG_DEBUG, ("[%d]msg from %s: \"%s\"(%d)\n", op,
 315                         tconn->id ? tconn->id : "NULL", ((char *)buf)+sizeof(uint32_t)+1, n));
 316         }
 317
 318         if (tcx->is_server) {
 319                 if (op==TESTOP_SEND_RND) {
 320                         unsigned char sum;
 321                         sum = ibwtest_get_sum((unsigned char *)buf + sizeof(uint32_t) + 1,
 322                                 n - sizeof(uint32_t) - 2);
 323                         DEBUG(DEBUG_DEBUG, ("[%d]msg varsize %u/sum %u from %s\n",
 324                                 op,
 325                                 (uint32_t)(n - sizeof(uint32_t) - 2),
 326                                 (uint32_t)sum,
 327                                 tconn->id ? tconn->id : "NULL"));
 328                         if (sum!=((unsigned char *)buf)[n-1]) {
 329                                 DEBUG(DEBUG_ERR, ("ERROR: checksum mismatch %u!=%u\n",
 330                                         (uint32_t)sum, (uint32_t)((unsigned char *)buf)[n-1]));
 331                                 ibw_stop(tcx->ibwctx);
 332                                 goto error;
 333                         }
 334                 } else if (op!=TESTOP_SEND_ID) {
 335                         char *buf2;
 336                         void *key2;
 337
 338                         /* bounce message regardless what it is */
 339                         if (ibw_alloc_send_buf(conn, (void **)&buf2, &key2, n)) {
 340                                 fprintf(stderr, "ibw_alloc_send_buf error #2\n");
 341                                 goto error;
 342                         }
 343                         memcpy(buf2, buf, n);
 344                         if (ibw_send(conn, buf2, key2, n)) {
 345                                 fprintf(stderr, "ibw_send error #2\n");
 346                                 goto error;
 347                         }
 348                         tcx->nsent++;
 349                 }
 350         } else { /* client: */
 351                 if (op==TESTOP_SEND_ID && tcx->maxsize) {
 352                         /* send them in one blow */
 353                         rc = ibwtest_do_varsize_scenario_conn(tcx, conn);
 354                 }
 355
 356                 if (tcx->nmsg) {
 357                         char    msg[26];
 358                         sprintf(msg, "hello world %d", tcx->nmsg--);
 359                         rc = ibwtest_send_test_msg(tcx, conn, msg);
 360                         if (tcx->nmsg==0) {
 361                                 ibw_stop(tcx->ibwctx);
 362                                 tcx->stopping = 1;
 363                         }
 364                 }
 365         }
 366
 367         if (rc)
 368                 tcx->error = rc;
 369
 370         return rc;
 371 error:
 372         return -1;
 373 }
 374
 375 static void ibwtest_timeout_handler(struct tevent_context *ev,
 376                                     struct tevent_timer *te,
 377                                     struct timeval t, void *private_data)
 378 {
 379         struct ibwtest_ctx *tcx = talloc_get_type(private_data, struct ibwtest_ctx);
 380         int     rc;
 381
 382         if (!tcx->is_server) {
 383                 struct ibw_conn *conn;
 384                 char    msg[50];
 385
 386                 /* fill it with something variable... */
 387                 sprintf(msg, "hello world %d", tcx->cnt++);
 388
 389                 /* send something to everybody... */
 390                 for(conn=tcx->ibwctx->conn_list; conn!=NULL; conn=conn->next) {
 391                         if (conn->state==IBWC_CONNECTED) {
 392                                 rc = ibwtest_send_test_msg(tcx, conn, msg);
 393                                 if (rc)
 394                                         tcx->error = rc;
 395                         }
 396                 }
 397         } /* else allow main loop run */
 398 }
 399
 400 static struct ibwtest_ctx *testctx = NULL;
 401
 402 static void ibwtest_sigint_handler(int sig)
 403 {
 404         DEBUG(DEBUG_ERR, ("got SIGINT\n"));
 405         if (testctx) {
 406                 if (testctx->ibwctx->state==IBWS_READY ||
 407                         testctx->ibwctx->state==IBWS_CONNECT_REQUEST ||
 408                         testctx->ibwctx->state==IBWS_ERROR)
 409                 {
 410                         if (testctx->stopping) {
 411                                 DEBUG(DEBUG_DEBUG, ("forcing exit...\n"));
 412                                 testctx->kill_me = 1;
 413                         } else {
 414                                 /* mostly expected case */
 415                                 ibw_stop(testctx->ibwctx);
 416                                 testctx->stopping = 1;
 417                         }
 418                 } else
 419                         testctx->kill_me = 1;
 420         }
 421 }
 422
 423 static int ibwtest_parse_attrs(struct ibwtest_ctx *tcx, char *optext,
 424         struct ibw_initattr **pattrs, int *nattrs, char op)
 425 {
 426         int     i = 0, n = 1;
 427         int     porcess_next = 1;
 428         char    *p, *q;
 429         struct ibw_initattr *attrs = NULL;
 430
 431         *pattrs = NULL;
 432         for(p = optext; *p!='\0'; p++) {
 433                 if (*p==',')
 434                         n++;
 435         }
 436
 437         attrs = (struct ibw_initattr *)talloc_size(tcx,
 438                 n * sizeof(struct ibw_initattr));
 439         for(p = optext; *p!='\0'; p++) {
 440                 if (porcess_next) {
 441                         attrs[i].name = p;
 442                         q = strchr(p, ':');
 443                         if (q==NULL) {
 444                                 fprintf(stderr, "-%c format error\n", op);
 445                                 return -1;
 446                         }
 447                         *q = '\0';
 448                         attrs[i].value = q + 1;
 449
 450                         porcess_next = 0;
 451                         i++;
 452                         p = q; /* ++ at end */
 453                 }
 454                 if (*p==',') {
 455                         *p = '\0'; /* ++ at end */
 456                         porcess_next = 1;
 457                 }
 458         }
 459         *pattrs = attrs;
 460         *nattrs = n;
 461
 462         return 0;
 463 }
 464
 465 static int ibwtest_get_address(const char *address, struct in_addr *addr)
 466 {
 467         if (inet_pton(AF_INET, address, addr) <= 0) {
 468                 struct hostent *he = gethostbyname(address);
 469                 if (he == NULL || he->h_length > sizeof(*addr)) {
 470                         DEBUG(DEBUG_ERR, ("invalid nework address '%s'\n", address));
 471                         return -1;
 472                 }
 473                 memcpy(addr, he->h_addr, he->h_length);
 474         }
 475         return 0;
 476 }
 477
 478 static int ibwtest_getdests(struct ibwtest_ctx *tcx, char op)
 479 {
 480         int     i;
 481         struct ibw_initattr     *attrs = NULL;
 482         struct sockaddr_in      *p;
 483         char    *tmp;
 484
 485         tmp = talloc_strdup(tcx, optarg);
 486         if (tmp == NULL) return -1;
 487         /* hack to reuse the above ibw_initattr parser */
 488         if (ibwtest_parse_attrs(tcx, tmp, &attrs, &tcx->naddrs, op))
 489                 return -1;
 490
 491         tcx->addrs = talloc_size(tcx,
 492                 tcx->naddrs * sizeof(struct sockaddr_in));
 493         for(i=0; i<tcx->naddrs; i++) {
 494                 p = tcx->addrs + i;
 495                 p->sin_family = AF_INET;
 496                 if (ibwtest_get_address(attrs[i].name, &p->sin_addr))
 497                         return -1;
 498                 p->sin_port = htons(atoi(attrs[i].value));
 499         }
 500
 501         return 0;
 502 }
 503
 504 static int ibwtest_init_server(struct ibwtest_ctx *tcx)
 505 {
 506         if (tcx->naddrs!=1) {
 507                 fprintf(stderr, "incorrect number of addrs(%d!=1)\n", tcx->naddrs);
 508                 return -1;
 509         }
 510
 511         if (ibw_bind(tcx->ibwctx, &tcx->addrs[0])) {
 512                 DEBUG(DEBUG_ERR, ("ERROR: ibw_bind failed\n"));
 513                 return -1;
 514         }
 515
 516         if (ibw_listen(tcx->ibwctx, 1)) {
 517                 DEBUG(DEBUG_ERR, ("ERROR: ibw_listen failed\n"));
 518                 return -1;
 519         }
 520
 521         /* continued at IBWS_READY */
 522         return 0;
 523 }
 524
 525 static void ibwtest_usage(struct ibwtest_ctx *tcx, char *name)
 526 {
 527         printf("Usage:\n");
 528         printf("\t%s -i <id> -o {name:value} -d {addr:port} -t nsec -s\n", name);
 529         printf("\t-i <id> is a free text, acting as a server id, max 23 chars [mandatory]\n");
 530         printf("\t-o name1:value1,name2:value2,... is a list of (name, value) pairs\n");
 531         printf("\t-a addr1:port1,addr2:port2,... is a list of destination ip addresses\n");
 532         printf("\t-t nsec delta time between sends in nanosec [default %d]\n", tcx->nsec);
 533         printf("\t\t send message periodically and endless when nsec is non-zero\n");
 534         printf("\t-s server mode (you have to give exactly one -d address:port in this case)\n");
 535         printf("\t-n number of messages to send [default %d]\n", tcx->nmsg);
 536         printf("\t-l usec time to sleep in the main loop [default %d]\n", tcx->sleep_usec);
 537         printf("\t-v max variable msg size in bytes [default %d], 0=don't send var. size\n", tcx->maxsize);
 538         printf("\t-d LogLevel [default %d]\n", DEBUGLEVEL);
 539         printf("Press ctrl+C to stop the program.\n");
 540 }
 541
 542 int main(int argc, char *argv[])
 543 {
 544         int     rc, op;
 545         int     result = 1;
 546         struct tevent_context *ev = NULL;
 547         struct ibwtest_ctx *tcx = NULL;
 548         float   usec;
 549
 550         tcx = talloc_zero(NULL, struct ibwtest_ctx);
 551         memset(tcx, 0, sizeof(struct ibwtest_ctx));
 552         tcx->nsec = 0;
 553         tcx->nmsg = 1000;
 554         DEBUGLEVEL = 0;
 555
 556         /* here is the only case we can't avoid using global... */
 557         testctx = tcx;
 558         signal(SIGINT, ibwtest_sigint_handler);
 559         srand((unsigned)time(NULL));
 560
 561         while ((op=getopt(argc, argv, "i:o:d:m:st:n:l:v:a:")) != -1) {
 562                 switch (op) {
 563                 case 'i':
 564                         tcx->id = talloc_strdup(tcx, optarg);
 565                         break;
 566                 case 'o':
 567                         tcx->opts = talloc_strdup(tcx, optarg);
 568                         if (tcx->opts) goto cleanup;
 569                         if (ibwtest_parse_attrs(tcx, tcx->opts, &tcx->attrs,
 570                                 &tcx->nattrs, op))
 571                                 goto cleanup;
 572                         break;
 573                 case 'a':
 574                         if (ibwtest_getdests(tcx, op))
 575                                 goto cleanup;
 576                         break;
 577                 case 's':
 578                         tcx->is_server = 1;
 579                         break;
 580                 case 't':
 581                         tcx->nsec = (unsigned int)atoi(optarg);
 582                         break;
 583                 case 'n':
 584                         tcx->nmsg = atoi(optarg);
 585                         break;
 586                 case 'l':
 587                         tcx->sleep_usec = (unsigned int)atoi(optarg);
 588                         break;
 589                 case 'v':
 590                         tcx->maxsize = (unsigned int)atoi(optarg);
 591                         break;
 592                 case 'd':
 593                         DEBUGLEVEL = atoi(optarg);
 594                         break;
 595                 default:
 596                         fprintf(stderr, "ERROR: unknown option -%c\n", (char)op);
 597                         ibwtest_usage(tcx, argv[0]);
 598                         goto cleanup;
 599                 }
 600         }
 601         if (tcx->id==NULL) {
 602                 ibwtest_usage(tcx, argv[0]);
 603                 goto cleanup;
 604         }
 605
 606         ev = tevent_context_init(NULL);
 607         assert(ev);
 608
 609         tcx->ibwctx = ibw_init(tcx->attrs, tcx->nattrs,
 610                 tcx,
 611                 ibwtest_connstate_handler,
 612                 ibwtest_receive_handler,
 613                 ev
 614         );
 615         if (!tcx->ibwctx)
 616                 goto cleanup;
 617
 618         if (tcx->is_server)
 619                 rc = ibwtest_init_server(tcx);
 620         else
 621                 rc = ibwtest_connect_everybody(tcx);
 622         if (rc)
 623                 goto cleanup;
 624
 625         while(!tcx->kill_me && !tcx->error) {
 626                 if (tcx->nsec) {
 627                         tevent_add_timer(ev, tcx,
 628                                          timeval_current_ofs(0, tcx->nsec),
 629                                          ibwtest_timeout_handler, tcx);
 630                 }
 631
 632                 tevent_loop_once(ev);
 633
 634                 if (tcx->sleep_usec)
 635                         usleep(tcx->sleep_usec);
 636         }
 637
 638         if (!tcx->is_server && tcx->nsent!=0 && !tcx->error) {
 639                 if (gettimeofday(&tcx->end_time, NULL)) {
 640                         DEBUG(DEBUG_ERR, ("gettimeofday error %d\n", errno));
 641                         goto cleanup;
 642                 }
 643                 usec = (tcx->end_time.tv_sec - tcx->start_time.tv_sec) * 1000000 +
 644                                 (tcx->end_time.tv_usec - tcx->start_time.tv_usec);
 645                 printf("usec: %f, nmsg: %d, usec/nmsg: %f\n",
 646                         usec, tcx->nsent, usec/(float)tcx->nsent);
 647         }
 648
 649         if (!tcx->error)
 650                 result = 0; /* everything OK */
 651
 652 cleanup:
 653         if (tcx)
 654                 talloc_free(tcx);
 655         if (ev)
 656                 talloc_free(ev);
 657         DEBUG(DEBUG_ERR, ("exited with code %d\n", result));
 658         return result;
 659 }