Database_FTP_Custom.c

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/************************************************************************************
 * Copyright (C) 2020                                                               *
 * TETCOS, Bangalore. India                                                         *
 *                                                                                  *
 * Tetcos owns the intellectual property rights in the Product and its content.     *
 * The copying, redistribution, reselling or publication of any or all of the       *
 * Product or its content without express prior written consent of Tetcos is        *
 * prohibited. Ownership and / or any other right relating to the software and all *
 * intellectual property rights therein shall remain at all times with Tetcos.      *
 *                                                                                  *
 * Author:    Shashi Kant Suman                                                       *
 *                                                                                  *
 * ---------------------------------------------------------------------------------*/
#include "Application.h"
 
/**
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This function is used to create create applications
 
Users can model their own mathematical distributions for packet sizes and itnerarrival times
 
 For Custom
 2nd parameter: Distribution Type| Distribution input1|Distribution input2|>
 Details
 If user selects any of the distributions listed below, then pass the corresponding number for the distribution type
 Exponential -1
 Uniform -2
 Triangular -3
 Weibull -4
 Constant -5
 Distribution input1-Value of Mean if exponential distribution/Upper bound for others
 Distribution input2-Value of lower bound
 
 Dont pass any thing if any of the distribution has no distribution input 2.
 3rd parameter:  Distribution Type |Distribution input1|Distribution input2|>
 Details
 If user selects any of the distributions listed below, then pass the corresponding number for the distribution type: Refer field -19
 Exponential -1
 Uniform -2
 Triangular-3
 Weibull-4
 Constant-5
 
 Distribution input1-Value of Mean if exponential distribution/Upper bound for others
 Distribution input2-Value of lower bound
 Dont pass any thing if any of the distribution has no distribution input 2.
 
 2)ldArrival-Arrival time of the last frame.
 3)unsigned long uSeed,unsigned long uSeed1-Seed values for packet size
 4)unsigned long uSeed2,unsigned long uSeed3-Seed values for inter arrival time
 Return Value:pointer to an array of long double
 1st element:packet size
 2nd element:arrival time
 3rd,4th element:seed values for packet size
 5th,6th element:seed values for inter arrival time
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */
 
_declspec(dllexport) int fn_NetSim_TrafficGenerator_Custom(APP_DATA_INFO* info,
                                                           double* fSize,
                                                           double* ldArrival,
                                                           unsigned long* uSeed,
                                                           unsigned long* uSeed1,
                                                           unsigned long* uSeed2,
                                                           unsigned long* uSeed3)
{
    double time=0.0;
    do
    {
        fnDistribution(info->packetSizeDistribution, fSize, uSeed,uSeed1,info->dPacketSize);
    }while(*fSize <= 1.0);
    //Call the fn in Distribution DLL to generate inter arrival time
    do
    {
        fnDistribution(info->IATDistribution,&time,uSeed,uSeed1,info->dIAT);
    }while (time <= 0.0);
    *ldArrival = *ldArrival + time;
    return 1;
}
 
/** This function is used to start the Database, FTP and Custom applications */
int fn_NetSim_Application_StartDataAPP(ptrAPPLICATION_INFO appInfo, double time)
{
    APP_DATA_INFO* info = (APP_DATA_INFO*)appInfo->appData;
 
    if (appInfo->dEndTime <= time)
        return 0;
 
    NETSIM_ID nSource = appInfo->sourceList[0];
 
    NETSIM_ID* nDestination = appInfo->destList;
    UINT destCount = appInfo->nDestCount;
 
    double arrivalTime = 0;
    double packetSize = 0;
 
    fnCreatePort(appInfo);
 
    //Create the socket buffer
    fnCreateSocketBuffer(appInfo);
 
    if (appInfo->nTransmissionType == MULTICAST)
    {
        add_multicast_route(appInfo);
        join_multicast_group(appInfo, time);
    }
 
    //Generate the app start event
    fn_NetSim_TrafficGenerator_Custom((APP_DATA_INFO*)appInfo->appData, &packetSize, &arrivalTime,
                                      &(NETWORK->ppstruDeviceList[nSource - 1]->ulSeed[0]),
                                      &(NETWORK->ppstruDeviceList[nSource - 1]->ulSeed[1]),
                                      &(NETWORK->ppstruDeviceList[nSource - 1]->ulSeed[0]),
                                      &(NETWORK->ppstruDeviceList[nSource - 1]->ulSeed[1]));
    
    if(!appInfo->nPacketId)
        arrivalTime = 0; // Based on feedback from an impotant customer. This can be modified to start between O to IAT since no network starts
                        // tranmitting packet at time 0.
 
    if (appInfo->dEndTime <= time + arrivalTime) return 0; // Next packet generation rate is after end time
 
    pstruEventDetails->dEventTime = time + arrivalTime;
    pstruEventDetails->dPacketSize = packetSize;
    pstruEventDetails->nApplicationId = appInfo->id;
    pstruEventDetails->nDeviceId = nSource;
    pstruEventDetails->nDeviceType = DEVICE_TYPE(nSource);
    pstruEventDetails->nEventType = TIMER_EVENT;
    pstruEventDetails->nInterfaceId = 0;
    pstruEventDetails->nProtocolId = PROTOCOL_APPLICATION;
    pstruEventDetails->nSegmentId = 0;
    pstruEventDetails->nSubEventType = event_APP_START;
    pstruEventDetails->pPacket =
        fn_NetSim_Application_GeneratePacket(appInfo,
                                             pstruEventDetails->dEventTime,
                                             nSource,
                                             destCount,
                                             nDestination,
                                             ++appInfo->nPacketId,
                                             appInfo->nAppType,
                                             appInfo->qos,
                                             appInfo->sourcePort,
                                             appInfo->destPort);
    pstruEventDetails->szOtherDetails = appInfo;
    pstruEventDetails->nPacketId = appInfo->nPacketId;
    fnpAddEvent(pstruEventDetails);
    return 0;
}