sjero.net Git - iperf/blob - src/Reporter.c

   1 /*---------------------------------------------------------------
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   3  * The Board of Trustees of the University of Illinois
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   5  *---------------------------------------------------------------
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  13  * so, subject to the following conditions:
  14  *
  15  *
  16  * Redistributions of source code must retain the above
  17  * copyright notice, this list of conditions and
  18  * the following disclaimers.
  19  *
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  21  * Redistributions in binary form must reproduce the above
  22  * copyright notice, this list of conditions and the following
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  28  * nor the names of its contributors may be used to endorse
  29  * or promote products derived from this Software without
  30  * specific prior written permission.
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  32  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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  40  * ________________________________________________________________
  41  * National Laboratory for Applied Network Research
  42  * National Center for Supercomputing Applications
  43  * University of Illinois at Urbana-Champaign
  44  * http://www.ncsa.uiuc.edu
  45  * ________________________________________________________________
  46  *
  47  * Reporter.c
  48  * by Kevin Gibbs <kgibbs@nlanr.net>
  49  *
  50  * ________________________________________________________________ */
  51
  52 #include "headers.h"
  53 #include "Settings.hpp"
  54 #include "util.h"
  55 #include "Reporter.h"
  56 #include "Thread.h"
  57 #include "Locale.h"
  58 #include "PerfSocket.hpp"
  59 #include "SocketAddr.h"
  60
  61 #ifdef __cplusplus
  62 extern "C" {
  63 #endif
  64
  65 /*
  66   The following 4 functions are provided for Reporting
  67   styles that do not have all the reporting formats. For
  68   instance the provided CSV format does not have a settings
  69   report so it uses settings_notimpl.
  70   */
  71 void* connection_notimpl( Connection_Info * nused, int nuse ) {
  72     return NULL;
  73 }
  74 void settings_notimpl( ReporterData * nused ) { }
  75 void statistics_notimpl( Transfer_Info * nused ) { }
  76 void serverstatistics_notimpl( Connection_Info *nused1, Transfer_Info *nused2 ) { }
  77
  78 // To add a reporting style include its header here.
  79 #include "report_default.h"
  80 #include "report_CSV.h"
  81
  82 // The following array of report structs contains the
  83 // pointers required for reporting in different reporting
  84 // styles. To add a reporting style add a report struct
  85 // below.
  86 report_connection connection_reports[kReport_MAXIMUM] = {
  87     reporter_reportpeer,
  88     CSV_peer
  89 };
  90
  91 report_settings settings_reports[kReport_MAXIMUM] = {
  92     reporter_reportsettings,
  93     settings_notimpl
  94 };
  95
  96 report_statistics statistics_reports[kReport_MAXIMUM] = {
  97     reporter_printstats,
  98     CSV_stats
  99 };
 100
 101 report_serverstatistics serverstatistics_reports[kReport_MAXIMUM] = {
 102     reporter_serverstats,
 103     CSV_serverstats
 104 };
 105
 106 report_statistics multiple_reports[kReport_MAXIMUM] = {
 107     reporter_multistats,
 108     CSV_stats
 109 };
 110
 111 char buffer[64]; // Buffer for printing
 112 ReportHeader *ReportRoot = NULL;
 113 extern Condition ReportCond;
 114 extern Condition ReportDoneCond;
 115 int reporter_process_report ( ReportHeader *report );
 116 void process_report ( ReportHeader *report );
 117 int reporter_handle_packet( ReportHeader *report );
 118 int reporter_condprintstats( ReporterData *stats, MultiHeader *multireport, int force );
 119 int reporter_print( ReporterData *stats, int type, int end );
 120 void PrintMSS( ReporterData *stats );
 121
 122 MultiHeader* InitMulti( thread_Settings *agent, int inID ) {
 123     MultiHeader *multihdr = NULL;
 124     if ( agent->mThreads > 1 || agent->mThreadMode == kMode_Server ) {
 125         if ( isMultipleReport( agent ) ) {
 126             multihdr = malloc(sizeof(MultiHeader) +  sizeof(ReporterData) +
 127                               NUM_MULTI_SLOTS * sizeof(Transfer_Info));
 128         } else {
 129             multihdr = malloc(sizeof(MultiHeader));
 130         }
 131         if ( multihdr != NULL ) {
 132             memset( multihdr, 0, sizeof(MultiHeader) );
 133             Condition_Initialize( &multihdr->barrier );
 134             multihdr->groupID = inID;
 135             multihdr->threads = agent->mThreads;
 136             if ( isMultipleReport( agent ) ) {
 137                 int i;
 138                 ReporterData *data = NULL;
 139                 multihdr->report = (ReporterData*)(multihdr + 1);
 140                 memset(multihdr->report, 0, sizeof(ReporterData));
 141                 multihdr->data = (Transfer_Info*)(multihdr->report + 1);
 142                 data = multihdr->report;
 143                 for ( i = 0; i < NUM_MULTI_SLOTS; i++ ) {
 144                     multihdr->data[i].startTime = -1;
 145                     multihdr->data[i].transferID = inID;
 146                     multihdr->data[i].groupID = -2;
 147                 }
 148                 data->type = TRANSFER_REPORT;
 149                 if ( agent->mInterval != 0.0 ) {
 150                     struct timeval *interval = &data->intervalTime;
 151                     interval->tv_sec = (long) agent->mInterval;
 152                     interval->tv_usec = (long) ((agent->mInterval - interval->tv_sec)
 153                                                 * rMillion);
 154                 }
 155                 data->mHost = agent->mHost;
 156                 data->mLocalhost = agent->mLocalhost;
 157                 data->mBufLen = agent->mBufLen;
 158                 data->mMSS = agent->mMSS;
 159                 data->mWinSize = agent->mWinSize;
 160                 data->flags = agent->flags;
 161                 data->mProtocol = agent->mProtocol;
 162                 data->mThreadMode = agent->mThreadMode;
 163                 data->mode = agent->mReportMode;
 164                 data->info.mFormat = agent->mFormat;
 165                 data->info.mTTL = agent->mTTL;
 166                 if ( isPacketOriented( agent ) ) {
 167                     multihdr->report->info.mUDP = (char)agent->mThreadMode;
 168                 }
 169                 if ( isConnectionReport( agent ) ) {
 170                     data->type |= CONNECTION_REPORT;
 171                     data->connection.peer = agent->peer;
 172                     data->connection.local = agent->local;
 173                 }
 174             }
 175         } else {
 176             FAIL(1, "Out of Memory!!\n", agent);
 177         }
 178     }
 179     return multihdr;
 180 }
 181
 182 /*
 183  * BarrierClient allows for multiple stream clients to be syncronized
 184  */
 185 void BarrierClient( ReportHeader *agent ) {
 186     Condition_Lock(agent->multireport->barrier);
 187     agent->multireport->threads--;
 188     if ( agent->multireport->threads == 0 ) {
 189         // last one set time and wake up everyone
 190         gettimeofday( &(agent->multireport->startTime), NULL );
 191         Condition_Broadcast( &agent->multireport->barrier );
 192     } else {
 193         Condition_Wait( &agent->multireport->barrier );
 194     }
 195     agent->multireport->threads++;
 196     Condition_Unlock( agent->multireport->barrier );
 197     agent->report.startTime = agent->multireport->startTime;
 198     agent->report.nextTime = agent->report.startTime;
 199     TimeAdd( agent->report.nextTime, agent->report.intervalTime );
 200 }
 201
 202 /*
 203  * InitReport is called by a transfer agent (client or
 204  * server) to setup the needed structures to communicate
 205  * traffic.
 206  */
 207 ReportHeader* InitReport( thread_Settings *agent ) {
 208     ReportHeader *reporthdr = NULL;
 209     ReporterData *data = NULL;
 210     if ( isDataReport( agent ) ) {
 211         /*
 212          * Create in one big chunk
 213          */
 214         reporthdr = malloc( sizeof(ReportHeader) +
 215                             NUM_REPORT_STRUCTS * sizeof(ReportStruct) );
 216         if ( reporthdr != NULL ) {
 217             // Only need to make sure the headers are clean
 218             memset( reporthdr, 0, sizeof(ReportHeader));
 219             reporthdr->data = (ReportStruct*)(reporthdr+1);
 220             reporthdr->multireport = agent->multihdr;
 221             data = &reporthdr->report;
 222             reporthdr->reporterindex = NUM_REPORT_STRUCTS - 1;
 223             data->info.transferID = agent->mSock;
 224             data->info.groupID = (agent->multihdr != NULL ? agent->multihdr->groupID
 225                                                           : -1);
 226             data->info.congAlgo = agent->congAlgo;
 227             data->type = TRANSFER_REPORT;
 228             if ( agent->mInterval != 0.0 ) {
 229                 struct timeval *interval = &data->intervalTime;
 230                 interval->tv_sec = (long) agent->mInterval;
 231                 interval->tv_usec = (long) ((agent->mInterval - interval->tv_sec)
 232                                             * rMillion);
 233             }
 234             data->mHost = agent->mHost;
 235             data->mLocalhost = agent->mLocalhost;
 236             data->mBufLen = agent->mBufLen;
 237             data->mMSS = agent->mMSS;
 238             data->mWinSize = agent->mWinSize;
 239             data->flags = agent->flags;
 240             data->mProtocol = agent->mProtocol;
 241             data->mThreadMode = agent->mThreadMode;
 242             data->mode = agent->mReportMode;
 243             data->info.mFormat = agent->mFormat;
 244             data->info.mTTL = agent->mTTL;
 245             if ( isPacketOriented( agent ) ) {
 246                 reporthdr->report.info.mUDP = (char)agent->mThreadMode;
 247             }
 248         } else {
 249             FAIL(1, "Out of Memory!!\n", agent);
 250         }
 251     }
 252     if ( isConnectionReport( agent ) ) {
 253         if ( reporthdr == NULL ) {
 254             /*
 255              * Create in one big chunk
 256              */
 257             reporthdr = malloc( sizeof(ReportHeader) );
 258             if ( reporthdr != NULL ) {
 259                 // Only need to make sure the headers are clean
 260                 memset( reporthdr, 0, sizeof(ReportHeader));
 261                 data = &reporthdr->report;
 262                 data->info.transferID = agent->mSock;
 263                 data->info.groupID = -1;
 264                 data->info.congAlgo = agent->congAlgo;
 265             } else {
 266                 FAIL(1, "Out of Memory!!\n", agent);
 267             }
 268         }
 269         if ( reporthdr != NULL ) {
 270             data->type |= CONNECTION_REPORT;
 271             data->connection.peer = agent->peer;
 272             data->connection.local = agent->local;
 273         } else {
 274             FAIL(1, "Out of Memory!!\n", agent);
 275         }
 276     }
 277     if ( isConnectionReport( agent ) || isDataReport( agent ) ) {
 278
 279 #ifdef HAVE_THREAD
 280         /*
 281          * Update the ReportRoot to include this report.
 282          */
 283         if ( reporthdr->report.mThreadMode == kMode_Client &&
 284              reporthdr->multireport != NULL ) {
 285             // syncronize watches on my mark......
 286             BarrierClient( reporthdr );
 287         } else {
 288             if ( reporthdr->multireport != NULL && isMultipleReport( agent )) {
 289                 reporthdr->multireport->threads++;
 290                 if ( reporthdr->multireport->report->startTime.tv_sec == 0 ) {
 291                     gettimeofday( &(reporthdr->multireport->report->startTime), NULL );
 292                 }
 293                 reporthdr->report.startTime = reporthdr->multireport->report->startTime;
 294             } else {
 295                 // set start time
 296                 gettimeofday( &(reporthdr->report.startTime), NULL );
 297             }
 298             reporthdr->report.nextTime = reporthdr->report.startTime;
 299             TimeAdd( reporthdr->report.nextTime, reporthdr->report.intervalTime );
 300         }
 301         Condition_Lock( ReportCond );
 302         reporthdr->next = ReportRoot;
 303         ReportRoot = reporthdr;
 304         Condition_Signal( &ReportCond );
 305         Condition_Unlock( ReportCond );
 306 #else
 307         // set start time
 308         gettimeofday( &(reporthdr->report.startTime), NULL );
 309         /*
 310          * Process the report in this thread
 311          */
 312         reporthdr->next = NULL;
 313         process_report ( reporthdr );
 314 #endif
 315     }
 316     if ( !isDataReport( agent ) ) {
 317         reporthdr = NULL;
 318     }
 319     return reporthdr;
 320 }
 321
 322 /*
 323  * ReportPacket is called by a transfer agent to record
 324  * the arrival or departure of a "packet" (for TCP it
 325  * will actually represent many packets). This needs to
 326  * be as simple and fast as possible as it gets called for
 327  * every "packet".
 328  */
 329 void ReportPacket( ReportHeader* agent, ReportStruct *packet ) {
 330     if ( agent != NULL ) {
 331         int index = agent->reporterindex;
 332         /*
 333          * First find the appropriate place to put the information
 334          */
 335         if ( agent->agentindex == NUM_REPORT_STRUCTS ) {
 336             // Just need to make sure that reporter is not on the first
 337             // item
 338             while ( index == 0 ) {
 339                 Condition_Signal( &ReportCond );
 340                 Condition_Wait( &ReportDoneCond );
 341                 index = agent->reporterindex;
 342             }
 343             agent->agentindex = 0;
 344         }
 345         // Need to make sure that reporter is not about to be "lapped"
 346         while ( index - 1 == agent->agentindex ) {
 347             Condition_Signal( &ReportCond );
 348             Condition_Wait( &ReportDoneCond );
 349             index = agent->reporterindex;
 350         }
 351
 352         // Put the information there
 353         memcpy( agent->data + agent->agentindex, packet, sizeof(ReportStruct) );
 354
 355         // Updating agentindex MUST be the last thing done
 356         agent->agentindex++;
 357 #ifndef HAVE_THREAD
 358         /*
 359          * Process the report in this thread
 360          */
 361         process_report ( agent );
 362 #endif
 363     }
 364 }
 365
 366 /*
 367  * CloseReport is called by a transfer agent to finalize
 368  * the report and signal transfer is over.
 369  */
 370 void CloseReport( ReportHeader *agent, ReportStruct *packet ) {
 371     if ( agent != NULL) {
 372         /*
 373          * Using PacketID of -1 ends reporting
 374          */
 375         packet->packetID = -1;
 376         packet->packetLen = 0;
 377         ReportPacket( agent, packet );
 378         packet->packetID = agent->report.cntDatagrams;
 379     }
 380 }
 381
 382 /*
 383  * EndReport signifies the agent no longer is interested
 384  * in the report. Calls to GetReport will no longer be
 385  * filled
 386  */
 387 void EndReport( ReportHeader *agent ) {
 388     if ( agent != NULL ) {
 389         int index = agent->reporterindex;
 390         while ( index != -1 ) {
 391             thread_rest();
 392             index = agent->reporterindex;
 393         }
 394         agent->agentindex = -1;
 395 #ifndef HAVE_THREAD
 396         /*
 397          * Process the report in this thread
 398          */
 399         process_report ( agent );
 400 #endif
 401     }
 402 }
 403
 404 /*
 405  * GetReport is called by the agent after a CloseReport
 406  * but before an EndReport to get the stats generated
 407  * by the reporter thread.
 408  */
 409 Transfer_Info *GetReport( ReportHeader *agent ) {
 410     int index = agent->reporterindex;
 411     while ( index != -1 ) {
 412         thread_rest();
 413         index = agent->reporterindex;
 414     }
 415     return &agent->report.info;
 416 }
 417
 418 /*
 419  * ReportSettings will generate a summary report for
 420  * settings being used with Listeners or Clients
 421  */
 422 void ReportSettings( thread_Settings *agent ) {
 423     if ( isSettingsReport( agent ) ) {
 424         /*
 425          * Create in one big chunk
 426          */
 427         ReportHeader *reporthdr = malloc( sizeof(ReportHeader) );
 428
 429         if ( reporthdr != NULL ) {
 430             ReporterData *data = &reporthdr->report;
 431             data->info.transferID = agent->mSock;
 432             data->info.groupID = -1;
 433             reporthdr->agentindex = -1;
 434             reporthdr->reporterindex = -1;
 435
 436             data->mHost = agent->mHost;
 437             data->mLocalhost = agent->mLocalhost;
 438             data->mode = agent->mReportMode;
 439             data->type = SETTINGS_REPORT;
 440             data->mBufLen = agent->mBufLen;
 441             data->mMSS = agent->mMSS;
 442             data->mWinSize = agent->mWinSize;
 443             data->flags = agent->flags;
 444             data->mProtocol = agent->mProtocol;
 445             data->mThreadMode = agent->mThreadMode;
 446             data->mPort = agent->mPort;
 447             data->mMcastIface = agent->mMcastIface;
 448             data->info.mFormat = agent->mFormat;
 449             data->info.mTTL = agent->mTTL;
 450             data->info.congAlgo = agent->congAlgo;
 451             data->connection.peer = agent->peer;
 452             data->connection.local = agent->local;
 453             data->mCCID=agent->mCCID;
 454
 455     #ifdef HAVE_THREAD
 456             /*
 457              * Update the ReportRoot to include this report.
 458              */
 459             Condition_Lock( ReportCond );
 460             reporthdr->next = ReportRoot;
 461             ReportRoot = reporthdr;
 462             Condition_Signal( &ReportCond );
 463             Condition_Unlock( ReportCond );
 464     #else
 465             /*
 466              * Process the report in this thread
 467              */
 468             reporthdr->next = NULL;
 469             process_report ( reporthdr );
 470     #endif
 471         } else {
 472             FAIL(1, "Out of Memory!!\n", agent);
 473         }
 474     }
 475 }
 476
 477 /*
 478  * ReportServerUDP will generate a report of the UDP
 479  * statistics as reported by the server on the client
 480  * side.
 481  */
 482 void ReportServerUDP( thread_Settings *agent, server_hdr *server ) {
 483     if ( (ntohl(server->flags) & HEADER_VERSION1) != 0 &&
 484          isServerReport( agent ) ) {
 485         /*
 486          * Create in one big chunk
 487          */
 488         ReportHeader *reporthdr = malloc( sizeof(ReportHeader) );
 489         Transfer_Info *stats = &reporthdr->report.info;
 490
 491         if ( reporthdr != NULL ) {
 492             stats->transferID = agent->mSock;
 493             stats->groupID = (agent->multihdr != NULL ? agent->multihdr->groupID
 494                                                       : -1);
 495             reporthdr->agentindex = -1;
 496             reporthdr->reporterindex = -1;
 497
 498             reporthdr->report.type = SERVER_RELAY_REPORT;
 499             reporthdr->report.mode = agent->mReportMode;
 500             stats->mFormat = agent->mFormat;
 501             stats->jitter = ntohl( server->jitter1 );
 502             stats->jitter += ntohl( server->jitter2 ) / (double)rMillion;
 503             stats->TotalLen = (((max_size_t) ntohl( server->total_len1 )) << 32) +
 504                                   ntohl( server->total_len2 );
 505             stats->startTime = 0;
 506             stats->endTime = ntohl( server->stop_sec );
 507             stats->endTime += ntohl( server->stop_usec ) / (double)rMillion;
 508             stats->cntError = ntohl( server->error_cnt );
 509             stats->cntOutofOrder = ntohl( server->outorder_cnt );
 510             stats->cntDatagrams = ntohl( server->datagrams );
 511             stats->mUDP = (char)kMode_Server;
 512             reporthdr->report.connection.peer = agent->local;
 513             reporthdr->report.connection.local = agent->peer;
 514
 515 #ifdef HAVE_THREAD
 516             /*
 517              * Update the ReportRoot to include this report.
 518              */
 519             Condition_Lock( ReportCond );
 520             reporthdr->next = ReportRoot;
 521             ReportRoot = reporthdr;
 522             Condition_Signal( &ReportCond );
 523             Condition_Unlock( ReportCond );
 524 #else
 525             /*
 526              * Process the report in this thread
 527              */
 528             reporthdr->next = NULL;
 529             process_report ( reporthdr );
 530 #endif
 531         } else {
 532             FAIL(1, "Out of Memory!!\n", agent);
 533         }
 534     }
 535 }
 536
 537 /*
 538  * This function is called only when the reporter thread
 539  * This function is the loop that the reporter thread processes
 540  */
 541 void reporter_spawn( thread_Settings *thread ) {
 542     do {
 543         // This section allows for safe exiting with Ctrl-C
 544         Condition_Lock ( ReportCond );
 545         if ( ReportRoot == NULL ) {
 546             // Allow main thread to exit if Ctrl-C is received
 547             thread_setignore();
 548             Condition_Wait ( &ReportCond );
 549             // Stop main thread from exiting until done with all reports
 550             thread_unsetignore();
 551         }
 552         Condition_Unlock ( ReportCond );
 553
 554 again:
 555         if ( ReportRoot != NULL ) {
 556             ReportHeader *temp = ReportRoot;
 557             //Condition_Unlock ( ReportCond );
 558             if ( reporter_process_report ( temp ) ) {
 559                 // This section allows for more reports to be added while
 560                 // the reporter is processing reports without needing to
 561                 // stop the reporter or immediately notify it
 562                 Condition_Lock ( ReportCond );
 563                 if ( temp == ReportRoot ) {
 564                     // no new reports
 565                     ReportRoot = temp->next;
 566                 } else {
 567                     // new reports added
 568                     ReportHeader *itr = ReportRoot;
 569                     while ( itr->next != temp ) {
 570                         itr = itr->next;
 571                     }
 572                     itr->next = temp->next;
 573                 }
 574                 // finished with report so free it
 575                 free( temp );
 576                 Condition_Unlock ( ReportCond );
 577                 Condition_Signal( &ReportDoneCond );
 578                 if (ReportRoot)
 579                     goto again;
 580             }
 581             Condition_Signal( &ReportDoneCond );
 582             usleep(10000);
 583         } else {
 584             //Condition_Unlock ( ReportCond );
 585         }
 586     } while ( 1 );
 587 }
 588
 589 /*
 590  * Used for single threaded reporting
 591  */
 592 void process_report ( ReportHeader *report ) {
 593     if ( report != NULL ) {
 594         if ( reporter_process_report( report ) ) {
 595             free( report );
 596         }
 597     }
 598 }
 599
 600 /*
 601  * Process reports starting with "reporthdr"
 602  */
 603 int reporter_process_report ( ReportHeader *reporthdr ) {
 604     int need_free = 0;
 605
 606     // Recursively process reports
 607     if ( reporthdr->next != NULL ) {
 608         if ( reporter_process_report( reporthdr->next ) ) {
 609             // If we are done with this report then free it
 610             ReportHeader *temp = reporthdr->next;
 611             reporthdr->next = reporthdr->next->next;
 612             free( temp );
 613         }
 614     }
 615
 616     if ( (reporthdr->report.type & SETTINGS_REPORT) != 0 ) {
 617         reporthdr->report.type &= ~SETTINGS_REPORT;
 618         return reporter_print( &reporthdr->report, SETTINGS_REPORT, 1 );
 619     } else if ( (reporthdr->report.type & CONNECTION_REPORT) != 0 ) {
 620         reporthdr->report.type &= ~CONNECTION_REPORT;
 621         reporter_print( &reporthdr->report, CONNECTION_REPORT,
 622                                (reporthdr->report.type == 0 ? 1 : 0) );
 623         if ( reporthdr->multireport != NULL && isMultipleReport( (&reporthdr->report) )) {
 624             if ( (reporthdr->multireport->report->type & CONNECTION_REPORT) != 0 ) {
 625                 reporthdr->multireport->report->type &= ~CONNECTION_REPORT;
 626                 reporter_print( reporthdr->multireport->report, CONNECTION_REPORT,
 627                                 (reporthdr->report.type == 0 ? 1 : 0) );
 628             }
 629         }
 630     } else if ( (reporthdr->report.type & SERVER_RELAY_REPORT) != 0 ) {
 631         reporthdr->report.type &= ~SERVER_RELAY_REPORT;
 632         return reporter_print( &reporthdr->report, SERVER_RELAY_REPORT, 1 );
 633     }
 634     if ( (reporthdr->report.type & TRANSFER_REPORT) != 0 ) {
 635         // If there are more packets to process then handle them
 636         if ( reporthdr->reporterindex >= 0 ) {
 637             // Need to make sure we do not pass the "agent"
 638             while ( reporthdr->reporterindex != reporthdr->agentindex - 1 ) {
 639                 if ( reporthdr->reporterindex == NUM_REPORT_STRUCTS - 1 ) {
 640                     if ( reporthdr->agentindex == 0 ) {
 641                         break;
 642                     } else {
 643                         reporthdr->reporterindex = 0;
 644                     }
 645                 } else {
 646                     reporthdr->reporterindex++;
 647                 }
 648                 if ( reporter_handle_packet( reporthdr ) ) {
 649                     // No more packets to process
 650                     reporthdr->reporterindex = -1;
 651                     break;
 652                 }
 653             }
 654         }
 655         // If the agent is done with the report then free it
 656         if ( reporthdr->agentindex == -1 ) {
 657             need_free = 1;
 658         }
 659     }
 660     return need_free;
 661 }
 662
 663 /*
 664  * Updates connection stats
 665  */
 666 int reporter_handle_packet( ReportHeader *reporthdr ) {
 667     ReportStruct *packet = &reporthdr->data[reporthdr->reporterindex];
 668     ReporterData *data = &reporthdr->report;
 669     Transfer_Info *stats = &reporthdr->report.info;
 670     int finished = 0;
 671
 672     // update received amount and time
 673     data->TotalLen  += packet->packetLen;
 674     data->packetTime = packet->packetTime;
 675     data->cntDatagrams++;
 676
 677     if (packet->packetID < 0) {
 678         // This is the last packet (FIN)
 679         finished = 1;
 680         if (isConnectionLess(&reporthdr->report)) {
 681             // connectionless protocols don't count the last payload
 682             if (reporthdr->report.mThreadMode == kMode_Client)
 683                 data->TotalLen -= packet->packetLen;
 684         } else {
 685             // connection-oriented protocols dont't count the FIN
 686             data->cntDatagrams--;
 687         }
 688     } else if ( packet->packetID != 0 ) {
 689             // UDP or DCCP packet
 690             double transit, deltaTransit;
 691
 692             // from RFC 1889, Real Time Protocol (RTP)
 693             // J = J + ( | D(i-1,i) | - J ) / 16
 694             transit = TimeDifference( packet->packetTime, packet->sentTime );
 695             if ( data->lastTransit != 0.0 ) {
 696                 deltaTransit = transit - data->lastTransit;
 697                 if ( deltaTransit < 0.0 ) {
 698                     deltaTransit = -deltaTransit;
 699                 }
 700                 stats->jitter += (deltaTransit - stats->jitter) / (16.0);
 701             }
 702             data->lastTransit = transit;
 703
 704             // packet loss occured if the datagram numbers aren't sequential
 705             if ( packet->packetID != data->PacketID + 1 ) {
 706                 if ( packet->packetID < data->PacketID + 1 ) {
 707                     data->cntOutofOrder++;
 708                 } else {
 709                     data->cntError += packet->packetID - data->PacketID - 1;
 710                 }
 711             }
 712             // never decrease datagramID (e.g. if we get an out-of-order packet)
 713             if ( packet->packetID > data->PacketID ) {
 714                 data->PacketID = packet->packetID;
 715             }
 716     }
 717     // Print a report if appropriate
 718     return reporter_condprintstats( &reporthdr->report, reporthdr->multireport, finished );
 719 }
 720
 721 /*
 722  * Handles summing of threads
 723  */
 724 void reporter_handle_multiple_reports( MultiHeader *reporthdr, Transfer_Info *stats, int force ) {
 725     if ( reporthdr != NULL ) {
 726         if ( reporthdr->threads > 1 ) {
 727             int i;
 728             Transfer_Info *current = NULL;
 729             // Search for start Time
 730             for ( i = 0; i < NUM_MULTI_SLOTS; i++ ) {
 731                 current = &reporthdr->data[i];
 732                 if ( current->startTime == stats->startTime ) {
 733                     break;
 734                 }
 735             }
 736             if ( current->startTime != stats->startTime ) {
 737                 // Find first available
 738                 for ( i = 0; i < NUM_MULTI_SLOTS; i++ ) {
 739                     current = &reporthdr->data[i];
 740                     if ( current->startTime < 0 ) {
 741                         break;
 742                     }
 743                 }
 744                 current->cntDatagrams = stats->cntDatagrams;
 745                 current->cntError = stats->cntError;
 746                 current->cntOutofOrder = stats->cntOutofOrder;
 747                 current->TotalLen = stats->TotalLen;
 748                 current->mFormat = stats->mFormat;
 749                 current->endTime = stats->endTime;
 750                 current->jitter = stats->jitter;
 751                 current->startTime = stats->startTime;
 752                 current->free = 1;
 753             } else {
 754                 current->cntDatagrams += stats->cntDatagrams;
 755                 current->cntError += stats->cntError;
 756                 current->cntOutofOrder += stats->cntOutofOrder;
 757                 current->TotalLen += stats->TotalLen;
 758                 current->mFormat = stats->mFormat;
 759                 if ( current->endTime < stats->endTime ) {
 760                     current->endTime = stats->endTime;
 761                 }
 762                 if ( current->jitter < stats->jitter ) {
 763                     current->jitter = stats->jitter;
 764                 }
 765                 current->free++;
 766                 if ( current->free == reporthdr->threads ) {
 767                     void *reserved = reporthdr->report->info.reserved_delay;
 768                     current->free = force;
 769                     memcpy( &reporthdr->report->info, current, sizeof(Transfer_Info) );
 770                     current->startTime = -1;
 771                     reporthdr->report->info.reserved_delay = reserved;
 772                     reporter_print( reporthdr->report, MULTIPLE_REPORT, force );
 773                 }
 774             }
 775         }
 776     }
 777 }
 778
 779 /*
 780  * Prints reports conditionally
 781  */
 782 int reporter_condprintstats( ReporterData *stats, MultiHeader *multireport, int force ) {
 783     if ( force != 0 ) {
 784         stats->info.cntOutofOrder = stats->cntOutofOrder;
 785         // assume most of the time out-of-order packets are not
 786         // duplicate packets, so conditionally subtract them from the lost packets.
 787         stats->info.cntError = stats->cntError;
 788         if ( stats->info.cntError > stats->info.cntOutofOrder ) {
 789             stats->info.cntError -= stats->info.cntOutofOrder;
 790         }
 791         if (isConnectionLess(stats))
 792                 stats->info.cntDatagrams = stats->PacketID;
 793         else
 794                 stats->info.cntDatagrams = stats->cntDatagrams;
 795         stats->info.TotalLen  = stats->TotalLen;
 796         stats->info.startTime = 0;
 797         stats->info.endTime   = TimeDifference( stats->packetTime, stats->startTime );
 798         stats->info.free      = 1;
 799         reporter_print( stats, TRANSFER_REPORT, force );
 800         if ( isMultipleReport(stats) ) {
 801             reporter_handle_multiple_reports( multireport, &stats->info, force );
 802         }
 803     } else while ((stats->intervalTime.tv_sec != 0 ||
 804                    stats->intervalTime.tv_usec != 0) &&
 805                   TimeDifference( stats->nextTime,
 806                                   stats->packetTime ) < 0 ) {
 807         stats->info.cntOutofOrder = stats->cntOutofOrder - stats->lastOutofOrder;
 808         stats->lastOutofOrder = stats->cntOutofOrder;
 809         // assume most of the time out-of-order packets are not
 810         // duplicate packets, so conditionally subtract them from the lost packets.
 811         stats->info.cntError = stats->cntError - stats->lastError;
 812         if ( stats->info.cntError > stats->info.cntOutofOrder ) {
 813             stats->info.cntError -= stats->info.cntOutofOrder;
 814         }
 815         stats->lastError = stats->cntError;
 816         if (isConnectionLess(stats)) {
 817                 stats->info.cntDatagrams = stats->PacketID - stats->lastDatagrams;
 818                 stats->lastDatagrams     = stats->PacketID;
 819         } else {
 820                 stats->info.cntDatagrams = stats->cntDatagrams - stats->lastDatagrams;
 821                 stats->lastDatagrams     = stats->cntDatagrams;
 822         }
 823         stats->info.TotalLen = stats->TotalLen - stats->lastTotal;
 824         stats->lastTotal = stats->TotalLen;
 825         stats->info.startTime = stats->info.endTime;
 826         stats->info.endTime = TimeDifference( stats->nextTime, stats->startTime );
 827         TimeAdd( stats->nextTime, stats->intervalTime );
 828         stats->info.free = 0;
 829         reporter_print( stats, TRANSFER_REPORT, force );
 830         if ( isMultipleReport(stats) ) {
 831             reporter_handle_multiple_reports( multireport, &stats->info, force );
 832         }
 833     }
 834     return force;
 835 }
 836
 837 /*
 838  * This function handles multiple format printing by sending to the
 839  * appropriate dispatch function
 840  */
 841 int reporter_print( ReporterData *stats, int type, int end ) {
 842     switch ( type ) {
 843         case TRANSFER_REPORT:
 844             statistics_reports[stats->mode]( &stats->info );
 845             if ( end != 0 && isPrintMSS( stats ) && !isConnectionLess( stats ) ) {
 846                 PrintMSS( stats );
 847             }
 848             break;
 849         case SERVER_RELAY_REPORT:
 850             serverstatistics_reports[stats->mode]( &stats->connection, &stats->info );
 851             break;
 852         case SETTINGS_REPORT:
 853             settings_reports[stats->mode]( stats );
 854             break;
 855         case CONNECTION_REPORT:
 856             stats->info.reserved_delay = connection_reports[stats->mode](
 857                                                &stats->connection,
 858                                                stats->info.transferID );
 859             break;
 860         case MULTIPLE_REPORT:
 861             multiple_reports[stats->mode]( &stats->info );
 862             break;
 863         default:
 864             fprintf( stderr, "Printing type not implemented! No Output\n" );
 865     }
 866     fflush( stdout );
 867     return end;
 868 }
 869
 870 /* -------------------------------------------------------------------
 871  * Report the MSS and MTU, given the MSS (or a guess thereof)
 872  * This works for connection-oriented protocols only: it expects
 873  * the protocol to be either TCP or DCCP and will give error otherwise
 874  * ------------------------------------------------------------------- */
 875
 876 // compare the MSS against the (MTU - 40) to (MTU - 80) bytes.
 877 // 40 byte IP header and somewhat arbitrarily, 40 more bytes of IP options.
 878
 879 #define checkMSS_MTU( inMSS, inMTU ) (inMTU-40) >= inMSS  &&  inMSS >= (inMTU-80)
 880
 881 void PrintMSS( ReporterData *stats )
 882 {
 883     int inMSS = stats->mProtocol == kProto_TCP
 884               ?   getsock_tcp_mss( stats->info.transferID )
 885               :   getsock_dccp_mps( stats->info.transferID );
 886
 887     if ( inMSS <= 0 ) {
 888         printf( report_mss_unsupported, stats->info.transferID );
 889     } else {
 890         char* net;
 891         int mtu = 0;
 892
 893         if ( checkMSS_MTU( inMSS, 1500 ) ) {
 894             net = "ethernet";
 895             mtu = 1500;
 896         } else if ( checkMSS_MTU( inMSS, 4352 ) ) {
 897             net = "FDDI";
 898             mtu = 4352;
 899         } else if ( checkMSS_MTU( inMSS, 9180 ) ) {
 900             net = "ATM";
 901             mtu = 9180;
 902         } else if ( checkMSS_MTU( inMSS, 65280 ) ) {
 903             net = "HIPPI";
 904             mtu = 65280;
 905         } else if ( checkMSS_MTU( inMSS, 576 ) ) {
 906             net = "minimum";
 907             mtu = 576;
 908             printf( warn_no_pathmtu );
 909         } else {
 910             mtu = inMSS + 40;
 911             net = "unknown interface";
 912         }
 913
 914         printf( report_mss,
 915                 stats->info.transferID, inMSS, mtu, net );
 916     }
 917 }
 918 // end ReportMSS
 919
 920 #ifdef __cplusplus
 921 } /* end extern "C" */
 922 #endif