DelayedAck.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 "main.h"
#include "TCP.h"
 
void set_ack_type(PNETSIM_SOCKET s, PTCP_DEV_VAR tcp)
{
    s->tcb->ackType = tcp->ackType;
    s->tcb->delayedAckTime = tcp->dDelayedAckTime;
    s->tcb->isAckSentLastTime = false;
}
 
bool send_ack_or_not(PNETSIM_SOCKET s)
{
    if (s->tcb->ackType == TCPACKTYPE_UNDELAYED)
        return true;
 
    if (s->tcb->lastAckSendTime +
        s->tcb->delayedAckTime <= pstruEventDetails->dEventTime)
    {
        s->tcb->lastAckSendTime = pstruEventDetails->dEventTime;
        s->tcb->isAckSentLastTime = true;
        return true;
    }
    else
    {
        if (s->tcb->isAckSentLastTime)
        {
            s->tcb->isAckSentLastTime = false;
            return false;
        }
        else
        {
            s->tcb->lastAckSendTime = pstruEventDetails->dEventTime;
            s->tcb->isAckSentLastTime = true;
            return true;
        }
    }
}