client.cpp

this is just a test file.please pardon me for the ignorance.ignorance is bliss

/*--------------------------------------------------------------- 
 * Copyright (c) 1999,2000,2001,2002,2003                              
 * The Board of Trustees of the University of Illinois            
 * All Rights Reserved.                                           
 *--------------------------------------------------------------- 
 * Permission is hereby granted, free of charge, to any person    
 * obtaining a copy of this software (Iperf) and associated       
 * documentation files (the "Software"), to deal in the Software  
 * without restriction, including without limitation the          
 * rights to use, copy, modify, merge, publish, distribute,        
 * sublicense, and/or sell copies of the Software, and to permit     
 * persons to whom the Software is furnished to do
 * so, subject to the following conditions: 
 *
 *     
 * Redistributions of source code must retain the above 
 * copyright notice, this list of conditions and 
 * the following disclaimers. 
 *
 *     
 * Redistributions in binary form must reproduce the above 
 * copyright notice, this list of conditions and the following 
 * disclaimers in the documentation and/or other materials 
 * provided with the distribution. 
 * 
 *     
 * Neither the names of the University of Illinois, NCSA, 
 * nor the names of its contributors may be used to endorse 
 * or promote products derived from this Software without
 * specific prior written permission. 
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 * NONINFRINGEMENT. IN NO EVENT SHALL THE CONTIBUTORS OR COPYRIGHT 
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
 * ________________________________________________________________
 * National Laboratory for Applied Network Research 
 * National Center for Supercomputing Applications 
 * University of Illinois at Urbana-Champaign 
 * http://www.ncsa.uiuc.edu
 * ________________________________________________________________ 
 *
 * Client.cpp
 * by Mark Gates <[e-mail]>
 * -------------------------------------------------------------------
 * A client thread initiates a connect to the server and handles
 * sending and receiving data, then closes the socket.
 * ------------------------------------------------------------------- */

#include "headers.h"
#include "Client.hpp"
#include "Thread.h"
#include "SocketAddr.h"
#include "PerfSocket.hpp"
#include "Extractor.h"
#include "delay.hpp"
#include "util.h"
#include "Locale.h"

/* -------------------------------------------------------------------
 * Store server hostname, optionally local hostname, and socket info.
 * ------------------------------------------------------------------- */

Client::Client( thread_Settings *inSettings ) {
    mSettings = inSettings;
    mBuf = NULL;

    // initialize buffer
    mBuf = new char[ mSettings->mBufLen ];
    pattern( mBuf, mSettings->mBufLen );
    if ( isFileInput( mSettings ) ) {
        if ( !isSTDIN( mSettings ) )
            Extractor_Initialize( mSettings->mFileName, mSettings->mBufLen, mSettings );
        else
            Extractor_InitializeFile( stdin, mSettings->mBufLen, mSettings );

        if ( !Extractor_canRead( mSettings ) ) {
            unsetFileInput( mSettings );
        }
    }

    // connect
    Connect( );

    if ( isReport( inSettings ) ) {
        ReportSettings( inSettings );
        if ( mSettings->multihdr && isMultipleReport( inSettings ) ) {
            mSettings->multihdr->report->connection.peer = mSettings->peer;
            mSettings->multihdr->report->connection.size_peer = mSettings->size_peer;
            mSettings->multihdr->report->connection.local = mSettings->local;
            SockAddr_setPortAny( &mSettings->multihdr->report->connection.local );
            mSettings->multihdr->report->connection.size_local = mSettings->size_local;
        }
    }

} // end Client

/* -------------------------------------------------------------------
 * Delete memory (hostname strings).
 * ------------------------------------------------------------------- */

Client::~Client() {
    if ( mSettings->mSock != INVALID_SOCKET ) {
        int rc = close( mSettings->mSock );
        WARN_errno( rc == SOCKET_ERROR, "close" );
        mSettings->mSock = INVALID_SOCKET;
    }
    DELETE_ARRAY( mBuf );
} // end ~Client

const double kSecs_to_usecs = 1e6; 
const int    kBytes_to_Bits = 8; 

void Client::RunTCP( void ) {
    long currLen = 0; 
    struct itimerval it;
    max_size_t totLen = 0;

    int err;

    char* readAt = mBuf;

    // Indicates if the stream is readable 
    bool canRead = true, mMode_Time = isModeTime( mSettings ); 

    ReportStruct *reportstruct = NULL;

    // InitReport handles Barrier for multiple Streams
    mSettings->reporthdr = InitReport( mSettings );
    reportstruct = new ReportStruct;
    reportstruct->packetID = 0;

    lastPacketTime.setnow();
    if ( mMode_Time ) {
	memset (&it, 0, sizeof (it));
	it.it_value.tv_sec = (int) (mSettings->mAmount / 100.0);
	it.it_value.tv_usec = (int) 10000 * (mSettings->mAmount -
	    it.it_value.tv_sec * 100.0);
	err = setitimer( ITIMER_REAL, &it, NULL );
	if ( err != 0 ) {
	    perror("setitimer");
	    exit(1);
	}
    }
    do {
        // Read the next data block from 
        // the file if it's file input 
        if ( isFileInput( mSettings ) ) {
            Extractor_getNextDataBlock( readAt, mSettings ); 
            canRead = Extractor_canRead( mSettings ) != 0; 
        } else
            canRead = true; 

        // perform write 
        currLen = write( mSettings->mSock, mBuf, mSettings->mBufLen ); 
        if ( currLen < 0 ) {
            WARN_errno( currLen < 0, "write2" ); 
            break; 
        }
	totLen += currLen;

	if(mSettings->mInterval > 0) {
    	    gettimeofday( &(reportstruct->packetTime), NULL );
            reportstruct->packetLen = currLen;
            ReportPacket( mSettings->reporthdr, reportstruct );
        }	

        if ( !mMode_Time ) {
            mSettings->mAmount -= currLen;
        }

    } while ( ! (sInterupted  || 
                   (!mMode_Time  &&  0 >= mSettings->mAmount)) && canRead ); 

    // stop timing
    gettimeofday( &(reportstruct->packetTime), NULL );

    // if we're not doing interval reporting, report the entire transfer as one big packet
    if(0.0 == mSettings->mInterval) {
        reportstruct->packetLen = totLen;
        ReportPacket( mSettings->reporthdr, reportstruct );
    }
    CloseReport( mSettings->reporthdr, reportstruct );

    DELETE_PTR( reportstruct );
    EndReport( mSettings->reporthdr );
}

/* ------------------------------------------------------------------- 
 * Send data using the connected UDP/TCP socket, 
 * until a termination flag is reached. 
 * Does not close the socket. 
 * ------------------------------------------------------------------- */ 

void Client::Run( void ) {
    struct UDP_datagram* mBuf_UDP = (struct UDP_datagram*) mBuf; 
    long currLen = 0; 

    int delay_target = 0; 
    int delay = 0; 
    int adjust = 0; 

    char* readAt = mBuf;

#if HAVE_THREAD
    if ( !isUDP( mSettings ) ) {
	RunTCP();
	return;
    }
#endif
    
    // Indicates if the stream is readable 
    bool canRead = true, mMode_Time = isModeTime( mSettings ); 

    // setup termination variables
    if ( mMode_Time ) {
        mEndTime.setnow();
        mEndTime.add( mSettings->mAmount / 100.0 );
    }

    if ( isUDP( mSettings ) ) {
        // Due to the UDP timestamps etc, included 
        // reduce the read size by an amount 
        // equal to the header size
    
        // compute delay for bandwidth restriction, constrained to [0,1] seconds 
        delay_target = (int) ( mSettings->mBufLen * ((kSecs_to_usecs * kBytes_to_Bits)