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

   1 /*---------------------------------------------------------------
   2  * Copyright (c) 1999,2000,2001,2002,2003
   3  * The Board of Trustees of the University of Illinois
   4  * All Rights Reserved.
   5  *---------------------------------------------------------------
   6  * Permission is hereby granted, free of charge, to any person
   7  * obtaining a copy of this software (Iperf) and associated
   8  * documentation files (the "Software"), to deal in the Software
   9  * without restriction, including without limitation the
  10  * rights to use, copy, modify, merge, publish, distribute,
  11  * sublicense, and/or sell copies of the Software, and to permit
  12  * persons to whom the Software is furnished to do
  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  *
  20  *
  21  * Redistributions in binary form must reproduce the above
  22  * copyright notice, this list of conditions and the following
  23  * disclaimers in the documentation and/or other materials
  24  * provided with the distribution.
  25  *
  26  *
  27  * Neither the names of the University of Illinois, NCSA,
  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.
  31  *
  32  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  33  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  34  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  35  * NONINFRINGEMENT. IN NO EVENT SHALL THE CONTIBUTORS OR COPYRIGHT
  36  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  37  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  38  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  39  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  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->type = TRANSFER_REPORT;
 227             if ( agent->mInterval != 0.0 ) {
 228                 struct timeval *interval = &data->intervalTime;
 229                 interval->tv_sec = (long) agent->mInterval;
 230                 interval->tv_usec = (long) ((agent->mInterval - interval->tv_sec)
 231                                             * rMillion);
 232             }
 233             data->mHost = agent->mHost;
 234             data->mLocalhost = agent->mLocalhost;
 235             data->mBufLen = agent->mBufLen;
 236             data->mMSS = agent->mMSS;
 237             data->mWinSize = agent->mWinSize;
 238             data->flags = agent->flags;
 239             data->mProtocol = agent->mProtocol;
 240             data->mThreadMode = agent->mThreadMode;
 241             data->mode = agent->mReportMode;
 242             data->info.mFormat = agent->mFormat;
 243             data->info.mTTL = agent->mTTL;
 244             if ( isPacketOriented( agent ) ) {
 245                 reporthdr->report.info.mUDP = (char)agent->mThreadMode;
 246             }
 247         } else {
 248             FAIL(1, "Out of Memory!!\n", agent);
 249         }
 250     }
 251     if ( isConnectionReport( agent ) ) {
 252         if ( reporthdr == NULL ) {
 253             /*
 254              * Create in one big chunk
 255              */
 256             reporthdr = malloc( sizeof(ReportHeader) );
 257             if ( reporthdr != NULL ) {
 258                 // Only need to make sure the headers are clean
 259                 memset( reporthdr, 0, sizeof(ReportHeader));
 260                 data = &reporthdr->report;
 261                 data->info.transferID = agent->mSock;
 262                 data->info.groupID = -1;
 263             } else {
 264                 FAIL(1, "Out of Memory!!\n", agent);
 265             }
 266         }
 267         if ( reporthdr != NULL ) {
 268             data->type |= CONNECTION_REPORT;
 269             data->connection.peer = agent->peer;
 270             data->connection.local = agent->local;
 271         } else {
 272             FAIL(1, "Out of Memory!!\n", agent);
 273         }
 274     }
 275     if ( isConnectionReport( agent ) || isDataReport( agent ) ) {
 276
 277 #ifdef HAVE_THREAD
 278         /*
 279          * Update the ReportRoot to include this report.
 280          */
 281         if ( reporthdr->report.mThreadMode == kMode_Client &&
 282              reporthdr->multireport != NULL ) {
 283             // syncronize watches on my mark......
 284             BarrierClient( reporthdr );
 285         } else {
 286             if ( reporthdr->multireport != NULL && isMultipleReport( agent )) {
 287                 reporthdr->multireport->threads++;
 288                 if ( reporthdr->multireport->report->startTime.tv_sec == 0 ) {
 289                     gettimeofday( &(reporthdr->multireport->report->startTime), NULL );
 290                 }
 291                 reporthdr->report.startTime = reporthdr->multireport->report->startTime;
 292             } else {
 293                 // set start time
 294                 gettimeofday( &(reporthdr->report.startTime), NULL );
 295             }
 296             reporthdr->report.nextTime = reporthdr->report.startTime;
 297             TimeAdd( reporthdr->report.nextTime, reporthdr->report.intervalTime );
 298         }
 299         Condition_Lock( ReportCond );
 300         reporthdr->next = ReportRoot;
 301         ReportRoot = reporthdr;
 302         Condition_Signal( &ReportCond );
 303         Condition_Unlock( ReportCond );
 304 #else
 305         // set start time
 306         gettimeofday( &(reporthdr->report.startTime), NULL );
 307         /*
 308          * Process the report in this thread
 309          */
 310         reporthdr->next = NULL;
 311         process_report ( reporthdr );
 312 #endif
 313     }
 314     if ( !isDataReport( agent ) ) {
 315         reporthdr = NULL;
 316     }
 317     return reporthdr;
 318 }
 319
 320 /*
 321  * ReportPacket is called by a transfer agent to record
 322  * the arrival or departure of a "packet" (for TCP it
 323  * will actually represent many packets). This needs to
 324  * be as simple and fast as possible as it gets called for
 325  * every "packet".
 326  */
 327 void ReportPacket( ReportHeader* agent, ReportStruct *packet ) {
 328     if ( agent != NULL ) {
 329         int index = agent->reporterindex;
 330         /*
 331          * First find the appropriate place to put the information
 332          */
 333         if ( agent->agentindex == NUM_REPORT_STRUCTS ) {
 334             // Just need to make sure that reporter is not on the first
 335             // item
 336             while ( index == 0 ) {
 337                 Condition_Signal( &ReportCond );
 338                 Condition_Wait( &ReportDoneCond );
 339                 index = agent->reporterindex;
 340             }
 341             agent->agentindex = 0;
 342         }
 343         // Need to make sure that reporter is not about to be "lapped"
 344         while ( index - 1 == agent->agentindex ) {
 345             Condition_Signal( &ReportCond );
 346             Condition_Wait( &ReportDoneCond );
 347             index = agent->reporterindex;
 348         }
 349
 350         // Put the information there
 351         memcpy( agent->data + agent->agentindex, packet, sizeof(ReportStruct) );
 352
 353         // Updating agentindex MUST be the last thing done
 354         agent->agentindex++;
 355 #ifndef HAVE_THREAD
 356         /*
 357          * Process the report in this thread
 358          */
 359         process_report ( agent );
 360 #endif
 361     }
 362 }
 363
 364 /*
 365  * CloseReport is called by a transfer agent to finalize
 366  * the report and signal transfer is over.
 367  */
 368 void CloseReport( ReportHeader *agent, ReportStruct *packet ) {
 369     if ( agent != NULL) {
 370         /*
 371          * Using PacketID of -1 ends reporting
 372          */
 373         packet->packetID = -1;
 374         packet->packetLen = 0;
 375         ReportPacket( agent, packet );
 376         packet->packetID = agent->report.cntDatagrams;
 377     }
 378 }
 379
 380 /*
 381  * EndReport signifies the agent no longer is interested
 382  * in the report. Calls to GetReport will no longer be
 383  * filled
 384  */
 385 void EndReport( ReportHeader *agent ) {
 386     if ( agent != NULL ) {
 387         int index = agent->reporterindex;
 388         while ( index != -1 ) {
 389             thread_rest();
 390             index = agent->reporterindex;
 391         }
 392         agent->agentindex = -1;
 393 #ifndef HAVE_THREAD
 394         /*
 395          * Process the report in this thread
 396          */
 397         process_report ( agent );
 398 #endif
 399     }
 400 }
 401
 402 /*
 403  * GetReport is called by the agent after a CloseReport
 404  * but before an EndReport to get the stats generated
 405  * by the reporter thread.
 406  */
 407 Transfer_Info *GetReport( ReportHeader *agent ) {
 408     int index = agent->reporterindex;
 409     while ( index != -1 ) {
 410         thread_rest();
 411         index = agent->reporterindex;
 412     }
 413     return &agent->report.info;
 414 }
 415
 416 /*
 417  * ReportSettings will generate a summary report for
 418  * settings being used with Listeners or Clients
 419  */
 420 void ReportSettings( thread_Settings *agent ) {
 421     if ( isSettingsReport( agent ) ) {
 422         /*
 423          * Create in one big chunk
 424          */
 425         ReportHeader *reporthdr = malloc( sizeof(ReportHeader) );
 426
 427         if ( reporthdr != NULL ) {
 428             ReporterData *data = &reporthdr->report;
 429             data->info.transferID = agent->mSock;
 430             data->info.groupID = -1;
 431             reporthdr->agentindex = -1;
 432             reporthdr->reporterindex = -1;
 433
 434             data->mHost = agent->mHost;
 435             data->mLocalhost = agent->mLocalhost;
 436             data->mode = agent->mReportMode;
 437             data->type = SETTINGS_REPORT;
 438             data->mBufLen = agent->mBufLen;
 439             data->mMSS = agent->mMSS;
 440             data->mWinSize = agent->mWinSize;
 441             data->flags = agent->flags;
 442             data->mProtocol = agent->mProtocol;
 443             data->mThreadMode = agent->mThreadMode;
 444             data->mPort = agent->mPort;
 445             data->mMcastIface = agent->mMcastIface;
 446             data->info.mFormat = agent->mFormat;
 447             data->info.mTTL = agent->mTTL;
 448             data->connection.peer = agent->peer;
 449             data->connection.local = agent->local;
 450
 451     #ifdef HAVE_THREAD
 452             /*
 453              * Update the ReportRoot to include this report.
 454              */
 455             Condition_Lock( ReportCond );
 456             reporthdr->next = ReportRoot;
 457             ReportRoot = reporthdr;
 458             Condition_Signal( &ReportCond );
 459             Condition_Unlock( ReportCond );
 460     #else
 461             /*
 462              * Process the report in this thread
 463              */
 464             reporthdr->next = NULL;
 465             process_report ( reporthdr );
 466     #endif
 467         } else {
 468             FAIL(1, "Out of Memory!!\n", agent);
 469         }
 470     }
 471 }
 472
 473 /*
 474  * ReportServerUDP will generate a report of the UDP
 475  * statistics as reported by the server on the client
 476  * side.
 477  */
 478 void ReportServerUDP( thread_Settings *agent, server_hdr *server ) {
 479     if ( (ntohl(server->flags) & HEADER_VERSION1) != 0 &&
 480          isServerReport( agent ) ) {
 481         /*
 482          * Create in one big chunk
 483          */
 484         ReportHeader *reporthdr = malloc( sizeof(ReportHeader) );
 485         Transfer_Info *stats = &reporthdr->report.info;
 486
 487         if ( reporthdr != NULL ) {
 488             stats->transferID = agent->mSock;
 489             stats->groupID = (agent->multihdr != NULL ? agent->multihdr->groupID
 490                                                       : -1);
 491             reporthdr->agentindex = -1;
 492             reporthdr->reporterindex = -1;
 493
 494             reporthdr->report.type = SERVER_RELAY_REPORT;
 495             reporthdr->report.mode = agent->mReportMode;
 496             stats->mFormat = agent->mFormat;
 497             stats->jitter = ntohl( server->jitter1 );
 498             stats->jitter += ntohl( server->jitter2 ) / (double)rMillion;
 499             stats->TotalLen = (((max_size_t) ntohl( server->total_len1 )) << 32) +
 500                                   ntohl( server->total_len2 );
 501             stats->startTime = 0;
 502             stats->endTime = ntohl( server->stop_sec );
 503             stats->endTime += ntohl( server->stop_usec ) / (double)rMillion;
 504             stats->cntError = ntohl( server->error_cnt );
 505             stats->cntOutofOrder = ntohl( server->outorder_cnt );
 506             stats->cntDatagrams = ntohl( server->datagrams );
 507             stats->mUDP = (char)kMode_Server;
 508             reporthdr->report.connection.peer = agent->local;
 509             reporthdr->report.connection.local = agent->peer;
 510
 511 #ifdef HAVE_THREAD
 512             /*
 513              * Update the ReportRoot to include this report.
 514              */
 515             Condition_Lock( ReportCond );
 516             reporthdr->next = ReportRoot;
 517             ReportRoot = reporthdr;
 518             Condition_Signal( &ReportCond );
 519             Condition_Unlock( ReportCond );
 520 #else
 521             /*
 522              * Process the report in this thread
 523              */
 524             reporthdr->next = NULL;
 525             process_report ( reporthdr );
 526 #endif
 527         } else {
 528             FAIL(1, "Out of Memory!!\n", agent);
 529         }
 530     }
 531 }
 532
 533 /*
 534  * This function is called only when the reporter thread
 535  * This function is the loop that the reporter thread processes
 536  */
 537 void reporter_spawn( thread_Settings *thread ) {
 538     do {
 539         // This section allows for safe exiting with Ctrl-C
 540         Condition_Lock ( ReportCond );
 541         if ( ReportRoot == NULL ) {
 542             // Allow main thread to exit if Ctrl-C is received
 543             thread_setignore();
 544             Condition_Wait ( &ReportCond );
 545             // Stop main thread from exiting until done with all reports
 546             thread_unsetignore();
 547         }
 548         Condition_Unlock ( ReportCond );
 549
 550 again:
 551         if ( ReportRoot != NULL ) {
 552             ReportHeader *temp = ReportRoot;
 553             //Condition_Unlock ( ReportCond );
 554             if ( reporter_process_report ( temp ) ) {
 555                 // This section allows for more reports to be added while
 556                 // the reporter is processing reports without needing to
 557                 // stop the reporter or immediately notify it
 558                 Condition_Lock ( ReportCond );
 559                 if ( temp == ReportRoot ) {
 560                     // no new reports
 561                     ReportRoot = temp->next;
 562                 } else {
 563                     // new reports added
 564                     ReportHeader *itr = ReportRoot;
 565                     while ( itr->next != temp ) {
 566                         itr = itr->next;
 567                     }
 568                     itr->next = temp->next;
 569                 }
 570                 // finished with report so free it
 571                 free( temp );
 572                 Condition_Unlock ( ReportCond );
 573                 Condition_Signal( &ReportDoneCond );
 574                 if (ReportRoot)
 575                     goto again;
 576             }
 577             Condition_Signal( &ReportDoneCond );
 578             usleep(10000);
 579         } else {
 580             //Condition_Unlock ( ReportCond );
 581         }
 582     } while ( 1 );
 583 }
 584
 585 /*
 586  * Used for single threaded reporting
 587  */
 588 void process_report ( ReportHeader *report ) {
 589     if ( report != NULL ) {
 590         if ( reporter_process_report( report ) ) {
 591             free( report );
 592         }
 593     }
 594 }
 595
 596 /*
 597  * Process reports starting with "reporthdr"
 598  */
 599 int reporter_process_report ( ReportHeader *reporthdr ) {
 600     int need_free = 0;
 601
 602     // Recursively process reports
 603     if ( reporthdr->next != NULL ) {
 604         if ( reporter_process_report( reporthdr->next ) ) {
 605             // If we are done with this report then free it
 606             ReportHeader *temp = reporthdr->next;
 607             reporthdr->next = reporthdr->next->next;
 608             free( temp );
 609         }
 610     }
 611
 612     if ( (reporthdr->report.type & SETTINGS_REPORT) != 0 ) {
 613         reporthdr->report.type &= ~SETTINGS_REPORT;
 614         return reporter_print( &reporthdr->report, SETTINGS_REPORT, 1 );
 615     } else if ( (reporthdr->report.type & CONNECTION_REPORT) != 0 ) {
 616         reporthdr->report.type &= ~CONNECTION_REPORT;
 617         reporter_print( &reporthdr->report, CONNECTION_REPORT,
 618                                (reporthdr->report.type == 0 ? 1 : 0) );
 619         if ( reporthdr->multireport != NULL && isMultipleReport( (&reporthdr->report) )) {
 620             if ( (reporthdr->multireport->report->type & CONNECTION_REPORT) != 0 ) {
 621                 reporthdr->multireport->report->type &= ~CONNECTION_REPORT;
 622                 reporter_print( reporthdr->multireport->report, CONNECTION_REPORT,
 623                                 (reporthdr->report.type == 0 ? 1 : 0) );
 624             }
 625         }
 626     } else if ( (reporthdr->report.type & SERVER_RELAY_REPORT) != 0 ) {
 627         reporthdr->report.type &= ~SERVER_RELAY_REPORT;
 628         return reporter_print( &reporthdr->report, SERVER_RELAY_REPORT, 1 );
 629     }
 630     if ( (reporthdr->report.type & TRANSFER_REPORT) != 0 ) {
 631         // If there are more packets to process then handle them
 632         if ( reporthdr->reporterindex >= 0 ) {
 633             // Need to make sure we do not pass the "agent"
 634             while ( reporthdr->reporterindex != reporthdr->agentindex - 1 ) {
 635                 if ( reporthdr->reporterindex == NUM_REPORT_STRUCTS - 1 ) {
 636                     if ( reporthdr->agentindex == 0 ) {
 637                         break;
 638                     } else {
 639                         reporthdr->reporterindex = 0;
 640                     }
 641                 } else {
 642                     reporthdr->reporterindex++;
 643                 }
 644                 if ( reporter_handle_packet( reporthdr ) ) {
 645                     // No more packets to process
 646                     reporthdr->reporterindex = -1;
 647                     break;
 648                 }
 649             }
 650         }
 651         // If the agent is done with the report then free it
 652         if ( reporthdr->agentindex == -1 ) {
 653             need_free = 1;
 654         }
 655     }
 656     return need_free;
 657 }
 658
 659 /*
 660  * Updates connection stats
 661  */
 662 int reporter_handle_packet( ReportHeader *reporthdr ) {
 663     ReportStruct *packet = &reporthdr->data[reporthdr->reporterindex];
 664     ReporterData *data = &reporthdr->report;
 665     Transfer_Info *stats = &reporthdr->report.info;
 666     int finished = 0;
 667
 668     // update received amount and time
 669     data->TotalLen  += packet->packetLen;
 670     data->packetTime = packet->packetTime;
 671     data->cntDatagrams++;
 672
 673     if (packet->packetID < 0) {
 674         // This is the last packet (FIN)
 675         finished = 1;
 676         if (isConnectionLess(&reporthdr->report)) {
 677             // connectionless protocols don't count the last payload
 678             if (reporthdr->report.mThreadMode == kMode_Client)
 679                 data->TotalLen -= packet->packetLen;
 680         } else {
 681             // connection-oriented protocols dont't count the FIN
 682             data->cntDatagrams--;
 683         }
 684     } else if ( packet->packetID != 0 ) {
 685             // UDP or DCCP packet
 686             double transit, deltaTransit;
 687
 688             // from RFC 1889, Real Time Protocol (RTP)
 689             // J = J + ( | D(i-1,i) | - J ) / 16
 690             transit = TimeDifference( packet->packetTime, packet->sentTime );
 691             if ( data->lastTransit != 0.0 ) {
 692                 deltaTransit = transit - data->lastTransit;
 693                 if ( deltaTransit < 0.0 ) {
 694                     deltaTransit = -deltaTransit;
 695                 }
 696                 stats->jitter += (deltaTransit - stats->jitter) / (16.0);
 697             }
 698             data->lastTransit = transit;
 699
 700             // packet loss occured if the datagram numbers aren't sequential
 701             if ( packet->packetID != data->PacketID + 1 ) {
 702                 if ( packet->packetID < data->PacketID + 1 ) {
 703                     data->cntOutofOrder++;
 704                 } else {
 705                     data->cntError += packet->packetID - data->PacketID - 1;
 706                 }
 707             }
 708             // never decrease datagramID (e.g. if we get an out-of-order packet)
 709             if ( packet->packetID > data->PacketID ) {
 710                 data->PacketID = packet->packetID;
 711             }
 712     }
 713     // Print a report if appropriate
 714     return reporter_condprintstats( &reporthdr->report, reporthdr->multireport, finished );
 715 }
 716
 717 /*
 718  * Handles summing of threads
 719  */
 720 void reporter_handle_multiple_reports( MultiHeader *reporthdr, Transfer_Info *stats, int force ) {
 721     if ( reporthdr != NULL ) {
 722         if ( reporthdr->threads > 1 ) {
 723             int i;
 724             Transfer_Info *current = NULL;
 725             // Search for start Time
 726             for ( i = 0; i < NUM_MULTI_SLOTS; i++ ) {
 727                 current = &reporthdr->data[i];
 728                 if ( current->startTime == stats->startTime ) {
 729                     break;
 730                 }
 731             }
 732             if ( current->startTime != stats->startTime ) {
 733                 // Find first available
 734                 for ( i = 0; i < NUM_MULTI_SLOTS; i++ ) {
 735                     current = &reporthdr->data[i];
 736                     if ( current->startTime < 0 ) {
 737                         break;
 738                     }
 739                 }
 740                 current->cntDatagrams = stats->cntDatagrams;
 741                 current->cntError = stats->cntError;
 742                 current->cntOutofOrder = stats->cntOutofOrder;
 743                 current->TotalLen = stats->TotalLen;
 744                 current->mFormat = stats->mFormat;
 745                 current->endTime = stats->endTime;
 746                 current->jitter = stats->jitter;
 747                 current->startTime = stats->startTime;
 748                 current->free = 1;
 749             } else {
 750                 current->cntDatagrams += stats->cntDatagrams;
 751                 current->cntError += stats->cntError;
 752                 current->cntOutofOrder += stats->cntOutofOrder;
 753                 current->TotalLen += stats->TotalLen;
 754                 current->mFormat = stats->mFormat;
 755                 if ( current->endTime < stats->endTime ) {
 756                     current->endTime = stats->endTime;
 757                 }
 758                 if ( current->jitter < stats->jitter ) {
 759                     current->jitter = stats->jitter;
 760                 }
 761                 current->free++;
 762                 if ( current->free == reporthdr->threads ) {
 763                     void *reserved = reporthdr->report->info.reserved_delay;
 764                     current->free = force;
 765                     memcpy( &reporthdr->report->info, current, sizeof(Transfer_Info) );
 766                     current->startTime = -1;
 767                     reporthdr->report->info.reserved_delay = reserved;
 768                     reporter_print( reporthdr->report, MULTIPLE_REPORT, force );
 769                 }
 770             }
 771         }
 772     }
 773 }
 774
 775 /*
 776  * Prints reports conditionally
 777  */
 778 int reporter_condprintstats( ReporterData *stats, MultiHeader *multireport, int force ) {
 779     if ( force != 0 ) {
 780         stats->info.cntOutofOrder = stats->cntOutofOrder;
 781         // assume most of the time out-of-order packets are not
 782         // duplicate packets, so conditionally subtract them from the lost packets.
 783         stats->info.cntError = stats->cntError;
 784         if ( stats->info.cntError > stats->info.cntOutofOrder ) {
 785             stats->info.cntError -= stats->info.cntOutofOrder;
 786         }
 787         if (isConnectionLess(stats))
 788                 stats->info.cntDatagrams = stats->PacketID;
 789         else
 790                 stats->info.cntDatagrams = stats->cntDatagrams;
 791         stats->info.TotalLen  = stats->TotalLen;
 792         stats->info.startTime = 0;
 793         stats->info.endTime   = TimeDifference( stats->packetTime, stats->startTime );
 794         stats->info.free      = 1;
 795         reporter_print( stats, TRANSFER_REPORT, force );
 796         if ( isMultipleReport(stats) ) {
 797             reporter_handle_multiple_reports( multireport, &stats->info, force );
 798         }
 799     } else while ((stats->intervalTime.tv_sec != 0 ||
 800                    stats->intervalTime.tv_usec != 0) &&
 801                   TimeDifference( stats->nextTime,
 802                                   stats->packetTime ) < 0 ) {
 803         stats->info.cntOutofOrder = stats->cntOutofOrder - stats->lastOutofOrder;
 804         stats->lastOutofOrder = stats->cntOutofOrder;
 805         // assume most of the time out-of-order packets are not
 806         // duplicate packets, so conditionally subtract them from the lost packets.
 807         stats->info.cntError = stats->cntError - stats->lastError;
 808         if ( stats->info.cntError > stats->info.cntOutofOrder ) {
 809             stats->info.cntError -= stats->info.cntOutofOrder;
 810         }
 811         stats->lastError = stats->cntError;
 812         if (isConnectionLess(stats)) {
 813                 stats->info.cntDatagrams = stats->PacketID - stats->lastDatagrams;
 814                 stats->lastDatagrams     = stats->PacketID;
 815         } else {
 816                 stats->info.cntDatagrams = stats->cntDatagrams - stats->lastDatagrams;
 817                 stats->lastDatagrams     = stats->cntDatagrams;
 818         }
 819         stats->info.TotalLen = stats->TotalLen - stats->lastTotal;
 820         stats->lastTotal = stats->TotalLen;
 821         stats->info.startTime = stats->info.endTime;
 822         stats->info.endTime = TimeDifference( stats->nextTime, stats->startTime );
 823         TimeAdd( stats->nextTime, stats->intervalTime );
 824         stats->info.free = 0;
 825         reporter_print( stats, TRANSFER_REPORT, force );
 826         if ( isMultipleReport(stats) ) {
 827             reporter_handle_multiple_reports( multireport, &stats->info, force );
 828         }
 829     }
 830     return force;
 831 }
 832
 833 /*
 834  * This function handles multiple format printing by sending to the
 835  * appropriate dispatch function
 836  */
 837 int reporter_print( ReporterData *stats, int type, int end ) {
 838     switch ( type ) {
 839         case TRANSFER_REPORT:
 840             statistics_reports[stats->mode]( &stats->info );
 841             if ( end != 0 && isPrintMSS( stats ) && !isConnectionLess( stats ) ) {
 842                 PrintMSS( stats );
 843             }
 844             break;
 845         case SERVER_RELAY_REPORT:
 846             serverstatistics_reports[stats->mode]( &stats->connection, &stats->info );
 847             break;
 848         case SETTINGS_REPORT:
 849             settings_reports[stats->mode]( stats );
 850             break;
 851         case CONNECTION_REPORT:
 852             stats->info.reserved_delay = connection_reports[stats->mode](
 853                                                &stats->connection,
 854                                                stats->info.transferID );
 855             break;
 856         case MULTIPLE_REPORT:
 857             multiple_reports[stats->mode]( &stats->info );
 858             break;
 859         default:
 860             fprintf( stderr, "Printing type not implemented! No Output\n" );
 861     }
 862     fflush( stdout );
 863     return end;
 864 }
 865
 866 /* -------------------------------------------------------------------
 867  * Report the MSS and MTU, given the MSS (or a guess thereof)
 868  * This works for connection-oriented protocols only: it expects
 869  * the protocol to be either TCP or DCCP and will give error otherwise
 870  * ------------------------------------------------------------------- */
 871
 872 // compare the MSS against the (MTU - 40) to (MTU - 80) bytes.
 873 // 40 byte IP header and somewhat arbitrarily, 40 more bytes of IP options.
 874
 875 #define checkMSS_MTU( inMSS, inMTU ) (inMTU-40) >= inMSS  &&  inMSS >= (inMTU-80)
 876
 877 void PrintMSS( ReporterData *stats )
 878 {
 879     int inMSS = stats->mProtocol == kProto_TCP
 880               ?   getsock_tcp_mss( stats->info.transferID )
 881               :   getsock_dccp_mps( stats->info.transferID );
 882
 883     if ( inMSS <= 0 ) {
 884         printf( report_mss_unsupported, stats->info.transferID );
 885     } else {
 886         char* net;
 887         int mtu = 0;
 888
 889         if ( checkMSS_MTU( inMSS, 1500 ) ) {
 890             net = "ethernet";
 891             mtu = 1500;
 892         } else if ( checkMSS_MTU( inMSS, 4352 ) ) {
 893             net = "FDDI";
 894             mtu = 4352;
 895         } else if ( checkMSS_MTU( inMSS, 9180 ) ) {
 896             net = "ATM";
 897             mtu = 9180;
 898         } else if ( checkMSS_MTU( inMSS, 65280 ) ) {
 899             net = "HIPPI";
 900             mtu = 65280;
 901         } else if ( checkMSS_MTU( inMSS, 576 ) ) {
 902             net = "minimum";
 903             mtu = 576;
 904             printf( warn_no_pathmtu );
 905         } else {
 906             mtu = inMSS + 40;
 907             net = "unknown interface";
 908         }
 909
 910         printf( report_mss,
 911                 stats->info.transferID, inMSS, mtu, net );
 912     }
 913 }
 914 // end ReportMSS
 915
 916 #ifdef __cplusplus
 917 } /* end extern "C" */
 918 #endif