wme_test/wclient.c

   1 #include <errno.h>
   2 #include <sys/types.h>
   3 #include <sys/socket.h>
   4 #include <netinet/in.h>
   5 #include <arpa/inet.h>
   6 #include <netdb.h>
   7 #include <signal.h>
   8 #include <sys/wait.h>
   9 #include <stdio.h>
  10 #include <unistd.h>
  11 #include <fcntl.h>
  12 #include <time.h>
  13 #include <string.h>
  14 #include <pthread.h>
  15 #include <string.h>
  16 #include <stdlib.h>
  17 #include <stdbool.h>
  18 #include "common.h"
  19 #include <semaphore.h>
  20
  21 #define MAX_STREAMS  10
  22 #define MIN_GRANULARITY 100
  23
  24 unsigned opt_packet_size = 800;
  25 unsigned opt_period_usec = 10*MSEC_TO_USEC;
  26 unsigned opt_jitter = 0;
  27 char    *opt_output = "delay_stats";
  28 unsigned opt_count_sec = 0;
  29 unsigned opt_def_bandwidth = 200;
  30 unsigned opt_def_period_msec = 0;
  31 int opt_granularity_usec = MIN_GRANULARITY;
  32 bool opt_wait_for_queue_is_full; /* Don't gather any statistics until any queue is full */
  33
  34 bool some_queue_is_full = false;
  35
  36 /* Locked when some queue is full to prevent multiple resets of
  37    statstics. */
  38 pthread_mutex_t queue_full_mutex = PTHREAD_MUTEX_INITIALIZER;
  39
  40 int ac_sockfd[AC_NUM];
  41
  42 struct receiver {
  43         pthread_t thread;
  44         unsigned received, last_received;
  45 } receivers[AC_NUM];
  46
  47 FILE* logfd;
  48 char* server_addr;
  49 char logfname[100];
  50
  51 /* maximal traffic delay in ms - 10 s*/
  52 #define MAX_DELAY_US 10000000
  53
  54 unsigned delay_stats[AC_NUM][MAX_DELAY_US/MIN_GRANULARITY];
  55
  56 /*struct ac_stats[AC_NUM] {
  57    unsigned long int min_trans_time;
  58    unsigned long int sum_trans_time;
  59    struct timespec   recv_timestamp;
  60    struct timespec   send_timestamp;
  61 };*/
  62
  63 struct stream {
  64         /* Input parameters */
  65         enum ac ac;             /*  */
  66         int bandwidth_bps;      /* bits per second */
  67         int jitter;             /* percent */
  68         /* Mulualy exclusive input parameters */
  69         int packet_size;
  70         long period_usec;       /* all time units are in microseconds */
  71
  72         /* Statistics */
  73         unsigned long long sent, received;
  74 };
  75
  76 /*
  77 struct send_endpoint sepoint[] = {
  78         { .ac = AC_VO, .period_usec=200*MSEC_TO_USEC, .bandwidth_bps = 34*Kbit },
  79         { .ac = AC_VI, .period_usec=25*MSEC_TO_USEC, .bandwidth_bps =  480*Kbit },
  80         { .ac = AC_BE, .period_usec=40*MSEC_TO_USEC, .bandwidth_bps =  300*Kbit },
  81         { .ac = AC_BK, .period_usec=40*MSEC_TO_USEC, .bandwidth_bps =  300*Kbit },
  82 //      { .ac = AC_VI, .period_usec=17*MSEC_TO_USEC, .bandwidth_bps =  675*Kbit },
  83 };
  84 */
  85
  86 struct stream streams[MAX_STREAMS];
  87
  88 unsigned int nr_streams = 0;
  89
  90 sem_t sem_thread_finished;
  91
  92 bool exit_flag = false;
  93
  94 void stopper()
  95 {
  96         int i;
  97         exit_flag = true;
  98
  99         /* Interrupt all receivers */
 100         for (i=0; i < AC_NUM; i++) {
 101                 pthread_kill(receivers[i].thread, SIGUSR1);
 102         }
 103 }
 104
 105 void stream_to_text(char *stream_desc, size_t n, struct stream *stream, int seconds)
 106 {
 107         char buf[3][12];
 108         char real[100];
 109
 110         if (seconds) {
 111                 snprintf(real, sizeof(real), "; real: sent %lld (%lld/s), received %lld (%lld/s)",
 112                          stream->sent, stream->sent/seconds,
 113                          stream->received, stream->received/seconds);
 114         }
 115
 116         snprintf(stream_desc, n, "%d: %s %s (%d bytes per %s +-%s, %d packets/s)%s",
 117                  stream-streams, ac_to_text[stream->ac], bandwidth_to_text(buf[0], stream->bandwidth_bps),
 118                  stream->packet_size, usec_to_text(buf[1], stream->period_usec),
 119                  usec_to_text(buf[2], stream->jitter*stream->period_usec/100),
 120                  (int)(SEC_TO_USEC/stream->period_usec), real);
 121 }
 122
 123 void save_results(int argc, char *argv[], int seconds)
 124 {
 125         int ac, i, maxi;
 126         const int mini = 3000/opt_granularity_usec;
 127         bool allzeros;
 128         unsigned sum[AC_NUM];
 129         double val;
 130
 131         fprintf(stderr, "Writing data to %s... ", logfname);
 132         fflush(stderr);
 133
 134         fprintf(logfd, "# Invoked as: ");
 135         for (i=0; i<argc; i++) fprintf(logfd, "%s ", argv[i]);
 136         fprintf(logfd, "\n");
 137
 138         if (seconds != opt_count_sec) {
 139                 fprintf(logfd, "# Data gathered for %d seconds.\n", seconds);
 140         }
 141
 142         for (i = 0; i < nr_streams; i++) {
 143                 char stream_desc[120];
 144                 stream_to_text(stream_desc, sizeof(stream_desc), &streams[i], seconds);
 145                 fprintf(logfd, "# Stream %s\n", stream_desc);
 146         }
 147
 148         /* Find maximal delay */
 149         allzeros = true;
 150         for (maxi = MAX_DELAY_US/opt_granularity_usec - 1; maxi >= 0; maxi--) {
 151                 for (ac = 0; ac < AC_NUM; ac++) {
 152                         if (delay_stats[ac][maxi] != 0) allzeros = false;
 153                 }
 154                 if (!allzeros) break;
 155         }
 156         maxi++;
 157         if (maxi < mini) maxi = mini;
 158
 159         /* Calculate total number of sent packets per AC */
 160         for (ac = 0; ac < AC_NUM; ac++) sum[ac] = 0;
 161         for (i = 0; i < nr_streams; i++) {
 162                 ac = streams[i].ac;
 163                 sum[ac] += streams[i].sent;
 164         }
 165
 166 #if 0
 167         /* Write pdf */
 168         for ( i = 0 ; i < maxi; i++) {
 169                 fprintf(logfd,"\n%f", i*opt_granularity_usec/1000.0);
 170                 for (ac = 0; ac < AC_NUM; ac++) {
 171                         if (sum[ac])
 172                                 val = (double)delay_stats[ac][i]*100.0 / sum[ac];
 173                         else val = -1; /* Don't display this ac */
 174                         fprintf(logfd," %lf", val);
 175                 }
 176         }
 177
 178         fprintf(logfd,"\n\n");
 179 #endif
 180
 181         /* Write PDF */
 182         for (ac = 0; ac < AC_NUM; ac++) {
 183                 unsigned long long integral = 0, last = -1;
 184
 185                 fprintf(logfd,"%f %f\n", 0.0, 0.0);
 186
 187                 if (sum[ac] != 0) {
 188                         i=0;
 189                         while (delay_stats[ac][i] == 0) i++;
 190
 191                         for (i++; i < maxi+1; i++) {
 192                                 if (last != integral) {
 193                                         val = (double)integral*100.0 / sum[ac];
 194                                         fprintf(logfd,"%f %f\n", i*opt_granularity_usec/1000.0, val);
 195                                         last = integral;
 196                                 }
 197                                 if (i>0)
 198                                         integral += delay_stats[ac][i-1];
 199                         }
 200                 }
 201                 fprintf(logfd,"\n\n");
 202         }
 203
 204         fprintf(stderr, "finished.\n");
 205         fclose(logfd);
 206
 207         exit(0);
 208 }
 209
 210 static inline
 211 void timespec_add (struct timespec *sum, const struct timespec *left,
 212               const struct timespec *right)
 213 {
 214         sum->tv_sec = left->tv_sec + right->tv_sec;
 215         sum->tv_nsec = left->tv_nsec + right->tv_nsec;
 216
 217         if (sum->tv_nsec >= 1000000000){
 218                 ++sum->tv_sec;
 219                 sum->tv_nsec -= 1000000000;
 220         }
 221 }
 222
 223 static inline
 224 void timespec_sub (struct timespec *diff, const struct timespec *left,
 225               const struct timespec *right)
 226 {
 227         diff->tv_sec = left->tv_sec - right->tv_sec;
 228         diff->tv_nsec = left->tv_nsec - right->tv_nsec;
 229
 230         if (diff->tv_nsec < 0){
 231                   --diff->tv_sec;
 232                   diff->tv_nsec += 1000000000;
 233         }
 234 }
 235
 236 int create_ac_socket(unsigned int ac)
 237 {
 238         int sockfd;
 239         unsigned int yes=1, tos;
 240
 241
 242         if ((sockfd = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0)
 243         {
 244                 perror("Unable to open socket");
 245                 return -1;
 246         }
 247         if (fcntl(sockfd, F_SETFL, O_NONBLOCK) != 0) {
 248                 perror("set non-blocking socket");
 249                 return -1;
 250         }
 251         if (setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,&yes,sizeof(int)) == -1) {
 252                 perror("Unable to set socket");
 253                 return -1;
 254         }
 255
 256
 257         //tos = ((AC_NUM - ac) *2 - 1)*32;
 258         tos = ac_to_tos[ac];
 259         if (setsockopt(sockfd, SOL_IP, IP_TOS, &tos, sizeof(tos))) {
 260                 perror("Unable to set TOS");
 261                 close(sockfd);
 262                 return -1;
 263         }
 264
 265         return sockfd;
 266 }
 267
 268 void empty_handler()
 269 {
 270 }
 271
 272 void reset_statistics()
 273 {
 274         int i;
 275         /* Mutexes??? */
 276         printf("Reseting\n");
 277         for (i = 0; i < nr_streams; i++) {
 278                 streams[i].sent = 0;
 279                 streams[i].received = 0;
 280         }
 281         memset(delay_stats, 0, sizeof(delay_stats));
 282 }
 283
 284 void* receiver(void* queue)
 285 {
 286         struct msg_t    msg;
 287         struct  sockaddr_in rem_addr;
 288         int     mlen, ret;
 289         unsigned int ac, rem_addr_length;
 290         unsigned long int trans_time_usec;
 291         unsigned long int min_trans_time;
 292         struct timespec   send_timestamp,recv_timestamp, trans_time;
 293         fd_set fdset;
 294
 295         min_trans_time = ~0;
 296
 297         block_signals();
 298         set_rt_prio(99);
 299
 300         ac = (int)queue;
 301         rem_addr_length = sizeof(rem_addr);
 302         FD_ZERO(&fdset);
 303         while (!exit_flag) {
 304                 FD_SET(ac_sockfd[ac], &fdset);
 305                 ret = select(ac_sockfd[ac]+1, &fdset, NULL, NULL, NULL);
 306                 if (ret < 0) {
 307                         if (errno == EINTR) continue;
 308                         perror("receiver select");
 309                         goto out;
 310                 }
 311                 mlen = recvfrom(ac_sockfd[ac], &msg, sizeof(msg), 0,    \
 312                                 (struct sockaddr*)&rem_addr, &rem_addr_length);
 313                 if (mlen < 0) {
 314                         perror("Chyba pri prijimani pozadavku");
 315                         goto out;
 316                 }
 317                 clock_gettime(CLOCK_MONOTONIC,&recv_timestamp);
 318                 send_timestamp = msg.send_timestamp;
 319
 320                 timespec_sub(&trans_time,&recv_timestamp ,&send_timestamp);
 321                 trans_time_usec = (trans_time.tv_sec * SEC_TO_USEC + \
 322                                          trans_time.tv_nsec / USEC_TO_NSEC) /2;
 323
 324                 if (trans_time_usec < MAX_DELAY_US)
 325                         delay_stats[ac][trans_time_usec/opt_granularity_usec]++;
 326
 327                 receivers[ac].received++;
 328                 streams[msg.stream].received++;
 329
 330                 /*if (trans_time_nsec < min_trans_time)
 331                         min_trans_time = trans_time_nsec;*/
 332                 /*printf("seqn= %lu tos= %d start= %lu(s).%lu(ns)"\
 333                          "stop= %lu(s).%lu(ns)\n trans_time = %lums\n",\
 334                          msg.seqn, msg.tos, send_timestamp.tv_sec,\
 335                          send_timestamp.tv_nsec,recv_timestamp.tv_sec,\
 336                          recv_timestamp.tv_nsec, trans_time_msec); */
 337         }
 338 out:
 339         sem_post(&sem_thread_finished);
 340         return NULL;
 341 }
 342
 343 void* sender(void* arg)
 344 {
 345         struct sockaddr_in rem_addr;
 346         union msg_buff buff;
 347         unsigned long int seqn;
 348         struct timespec time_to_wait, current_time, period, interval;
 349         struct hostent* ph;
 350         struct stream* stream = (struct stream*) arg;
 351         int packet_size;
 352         unsigned period_usec;
 353         char stream_desc[100];
 354
 355         if (stream->bandwidth_bps == 0)
 356                 goto out;
 357
 358         set_rt_prio(90-stream->ac);
 359
 360         if (stream->packet_size) {
 361                 packet_size = stream->packet_size;
 362                 period_usec = SEC_TO_USEC*packet_size*8/stream->bandwidth_bps;
 363         } else if (stream->period_usec) {
 364                 period_usec = stream->period_usec;
 365                 packet_size = (long long)stream->bandwidth_bps/8 * period_usec/SEC_TO_USEC;
 366         } else {
 367                 char buf[200];
 368                 stream_to_text(buf, sizeof(buf), stream, 0);
 369                 fprintf(stderr, "Neither packet size nor period was specified for a stream %s\n", buf);
 370                 exit(1);
 371         }
 372         stream->packet_size = packet_size;
 373         stream->period_usec = period_usec;
 374         stream->jitter = opt_jitter;
 375
 376
 377         stream_to_text(stream_desc, sizeof(stream_desc), stream, 0);
 378
 379         printf("%s\n", stream_desc);
 380
 381         if (packet_size < sizeof(struct msg_t)) {
 382                 fprintf(stderr, "Packet size too small (min %d)\n", sizeof(struct msg_t));
 383                 exit(1);
 384         }
 385
 386
 387         memset(&rem_addr,0, sizeof(rem_addr));
 388
 389         rem_addr.sin_family = AF_INET;
 390         ph = gethostbyname(server_addr);
 391         if (ph)
 392                 rem_addr.sin_addr = *((struct in_addr *)ph->h_addr);
 393         else {
 394                 perror("Unknown server");
 395                 exit(1);
 396         }
 397         rem_addr.sin_port = htons(BASE_PORT + stream->ac);
 398         seqn = 0;
 399
 400         block_signals();
 401
 402         while (!exit_flag) {
 403
 404                 buff.msg.seqn = seqn;
 405                 buff.msg.tos = ac_to_tos[stream->ac];
 406                 buff.msg.stream = stream-streams;
 407
 408                 clock_gettime(CLOCK_MONOTONIC,&buff.msg.send_timestamp);
 409
 410                 while (sendto(ac_sockfd[stream->ac], &buff, packet_size, 0,\
 411                                 (struct sockaddr*)&rem_addr, sizeof(rem_addr)) < 0) {
 412                                 if (errno == EINTR) continue;
 413                                 if (errno == EAGAIN) {
 414                                         if (!some_queue_is_full && (pthread_mutex_trylock(&queue_full_mutex) != EBUSY)) {
 415                                                 some_queue_is_full = true;
 416                                                 reset_statistics();
 417                                         }
 418
 419                                         break;
 420                                 } else {
 421                                         perror("Error while sending");
 422                                         goto out;
 423                                 }
 424                 }
 425
 426 #ifdef DEBUG
 427                 printf("%d", ac);
 428                 fflush(stdout);
 429 #endif
 430                 seqn++;
 431                 stream->sent++;
 432
 433                 /*           |~~~+~~~| jitter interval (width = 2*opt_jitter percentage from period)*/
 434                 /* |-------------|     nominal period*/
 435                 if (opt_jitter) {
 436                         period.tv_nsec = USEC_TO_NSEC*(period_usec*(100-opt_jitter)/100
 437                                                  + rand() % (2*period_usec*opt_jitter/100));
 438                 } else {
 439                         period.tv_nsec = USEC_TO_NSEC*(period_usec);
 440                 }
 441                 period.tv_sec = 0;
 442
 443                 timespec_add(&time_to_wait,&buff.msg.send_timestamp,&period);
 444                 clock_gettime(CLOCK_MONOTONIC,&current_time);
 445                 timespec_sub(&interval,&time_to_wait,&current_time);
 446                 nanosleep(&interval,NULL);
 447         }
 448 out:
 449         sem_post(&sem_thread_finished);
 450         return NULL;
 451 }
 452
 453 char* parse_bandwidths(char *params)
 454 {
 455         struct stream *sp = &streams[nr_streams];
 456
 457         while (*params && nr_streams < MAX_STREAMS) {
 458                 char *ac_ids[AC_NUM] = { [AC_VO]="VO", [AC_VI]="VI", [AC_BE]="BE", [AC_BK]="BK" };
 459                 int i;
 460                 char *next_char;
 461
 462                 if (strlen(params) < 2)
 463                         return params;
 464                 for (i=0; i<AC_NUM; i++) {
 465                         if (strncmp(params, ac_ids[i], 2) == 0) {
 466                                 sp->ac = i;
 467                                 params+=strlen(ac_ids[i]);
 468                                 break;
 469                         }
 470                 }
 471                 if (i==AC_NUM)
 472                         return params;
 473
 474                 long bw;
 475                 if (*params == ':') {
 476                         params++;
 477
 478                         bw = strtol(params, &next_char, 10);
 479                         if (next_char == params)
 480                                 return params;
 481                         params = next_char;
 482                 } else
 483                         bw = opt_def_bandwidth;
 484
 485                 sp->bandwidth_bps = bw*Kbit;
 486
 487                 long period = 0;
 488                 long packet_size = 0;
 489                 if (*params == '@') {
 490                         params++;
 491                         period = strtol(params, &next_char, 10);
 492                         if (period == 0)
 493                                 return params;
 494                         params = next_char;
 495                 }
 496                 else {
 497                         if (*params == '/') {
 498                                 params++;
 499                                 packet_size = strtol(params, &next_char, 10);
 500                                 if (packet_size == 0)
 501                                         return params;
 502                                 params = next_char;
 503                         } else {
 504                                 packet_size = opt_packet_size;
 505                                 period = opt_def_period_msec;
 506                         }
 507                 }
 508                 sp->period_usec = period*MSEC_TO_USEC;
 509                 sp->packet_size = packet_size;
 510
 511
 512
 513                 if (*params != '\0' && *params != ',')
 514                         return params;
 515                 nr_streams++;
 516                 sp++;
 517                 if (*params == ',')
 518                         params++;
 519         }
 520         return NULL;
 521 }
 522
 523 int main(int argc, char *argv[])
 524 {
 525         int ac, i, rc, seconds, seconds_start;
 526         pthread_attr_t attr;
 527         pthread_t thread;
 528         char opt;
 529
 530
 531         while ((opt = getopt(argc, argv, "B:b:c:g:j:o:qs:T:")) != -1) {
 532                 switch (opt) {
 533                         case 'B':
 534                                 opt_def_bandwidth = atoi(optarg);
 535                                 break;
 536                         case 'b': {
 537                                 char *error;
 538                                 error = parse_bandwidths(optarg);
 539                                 if (error != NULL) {
 540                                         if (*error == '\0')
 541                                                 fprintf(stderr, "Bandwidth parse error - string to short\n");
 542                                         else
 543                                                 fprintf(stderr, "Bandwidth parse error at '%s'\n", error);
 544                                         exit(1);
 545                                 }
 546                                 break;
 547                         }
 548                         case 'c':
 549                                 opt_count_sec = atoi(optarg);
 550                                 break;
 551                         case 'g':
 552                                 opt_granularity_usec = atoi(optarg);
 553                                 if (opt_granularity_usec < MIN_GRANULARITY) {
 554                                         fprintf(stderr, "Granulatiry too small (min %d)!\n", MIN_GRANULARITY);
 555                                         exit(1);
 556                                 }
 557                                 break;
 558                         case 'j':
 559                                 opt_jitter = atoi(optarg);
 560                                 break;
 561                         case 'o':
 562                                 opt_output = optarg;
 563                                 break;
 564                         case 'q':
 565                                 opt_wait_for_queue_is_full = true;
 566                                 break;
 567                         case 's':
 568                                 opt_packet_size = atoi(optarg);
 569                                 break;
 570                         case 'T':
 571                                 opt_def_period_msec = atoi(optarg);
 572                                 break;
 573                         default:
 574                                 fprintf(stderr, "Usage: %s [ options ] server_addr\n\n", argv[0]);
 575                                 fprintf(stderr, "Options:\n");
 576                                 fprintf(stderr, "    -B  default bandwidth for -b option [kbit]\n");
 577                                 fprintf(stderr, "    -b  bandwidth of streams (VO|VI|BE|BK)[:<kbit>][@<msec> or /<bytes>][,...]\n");
 578                                 fprintf(stderr, "    -c  count (number of seconds to run)\n");
 579                                 fprintf(stderr, "    -g  histogram granularity [usec]\n");
 580                                 fprintf(stderr, "    -j  send jitter (0-100) [%%]\n");
 581                                 fprintf(stderr, "    -o  output filename (.dat will be appended)\n");
 582                                 fprintf(stderr, "    -q  gather statistics only after some queue becomes full\n");
 583                                 fprintf(stderr, "    -s  size of data payload in packets [bytes] (default: %d)\n", opt_packet_size);
 584                                 fprintf(stderr, "    -T  default period for -b option [msec]\n");
 585                                 exit(1);
 586                 }
 587         }
 588         if (opt_packet_size && opt_def_period_msec) {
 589                 fprintf(stderr, "Error: Nonzero -T and -s can't be used together!.\n");
 590                 exit(1);
 591         }
 592
 593         if (optind < argc) {
 594                 server_addr = argv[optind];
 595         } else {
 596                 fprintf(stderr, "Expected server address argument\n");
 597                 exit(1);
 598         }
 599
 600
 601         if (nr_streams == 0)
 602                 parse_bandwidths("BE");
 603
 604         memset(delay_stats,0, sizeof(delay_stats));
 605         pthread_attr_init(&attr);
 606
 607         snprintf(logfname, sizeof(logfname), "%s.dat", opt_output);
 608
 609         if ((logfd = fopen(logfname,"w+")) == NULL) {
 610                 fprintf(stderr,"Can not open %s\n", logfname);
 611                 exit(1);
 612         }
 613         if (signal(SIGTERM, stopper) == SIG_ERR) {
 614                 perror("Error in signal registration");
 615                 exit(1);
 616         }
 617
 618         if (signal(SIGINT, stopper) == SIG_ERR) {
 619                 perror("Signal handler registration error");
 620                 exit(1);
 621         }
 622
 623         struct sigaction sa;
 624         sa.sa_handler = empty_handler;
 625         sa.sa_flags = 0;        /* don't restart syscalls */
 626
 627         if (sigaction(SIGUSR1, &sa, NULL) < 0) {
 628                 perror("sigaction error");
 629                 exit(1);
 630         }
 631
 632         sem_init(&sem_thread_finished, 0, 0);
 633
 634         /* create four receivers each per AC */
 635         for (ac = AC_NUM - 1; ac >= 0; ac--) {
 636                 ac_sockfd[ac] = create_ac_socket(ac);
 637                 rc = pthread_create(&receivers[ac].thread, &attr, receiver, (void*) ac);
 638                 if (rc) {
 639                         fprintf(stderr, "Error while creating receiver %d\n",rc);
 640                         return 1;
 641                 }
 642         }
 643
 644         /* create sendpoints */
 645         for (i = 0; i < nr_streams; i++) {
 646                 rc = pthread_create(&thread, &attr, sender, (void*) &streams[i]);
 647                 if (rc) {
 648                         fprintf(stderr, "Error while creating sender %d\n",rc);
 649                         return 1;
 650                 }
 651         }
 652
 653         seconds = 0;
 654         seconds_start = -1;
 655         while (!exit_flag) {
 656                 sleep(1);
 657                 seconds++;
 658                 if (opt_wait_for_queue_is_full) {
 659                         if (some_queue_is_full && seconds_start == -1) {
 660                                 printf("\nSome queue is full\n");
 661                                 seconds_start = seconds;
 662                         }
 663                 }
 664                 fprintf(stderr, "\r%3ds", seconds);
 665                 for (ac = 0; ac < AC_NUM; ac++) {
 666                         int delta = receivers[ac].received - receivers[ac].last_received;
 667                         receivers[ac].last_received = receivers[ac].received;
 668                         fprintf(stderr, " %s %5d %4d/s", ac_to_text[ac], receivers[ac].received, delta);
 669                 }
 670                 fflush(stderr);
 671                 if (seconds == opt_count_sec)
 672                         stopper();
 673         }
 674
 675         fprintf(stderr, "\nWaiting for threads to finish\n");
 676         /* Wait for all threads to finish */
 677         for (i=0; i < nr_streams + AC_NUM; i++) {
 678                 sem_wait(&sem_thread_finished);
 679         }
 680
 681         if (seconds_start == -1) seconds_start=0;
 682         save_results(argc, argv, seconds-seconds_start);
 683
 684         return 0;
 685 }