[lwip-users] Where are TCP PCB Flags Initialized?

[Gary Olson]

Hi,

 

Looking in tcp.c I see this

 

  tcp_recved(struct tcp_pcb *pcb, u16_t len)

{

  //int ackNow = 0;

 

  if ((u32_t)pcb->rcv_wnd + len > TCP_WND) {

    pcb->rcv_wnd = TCP_WND;

  } else {

    pcb->rcv_wnd += len;

  }

  if (!(pcb->flags & TF_ACK_DELAY) &&

     !(pcb->flags & TF_ACK_NOW))

 

 

Ect.

 

What I am looking for is where the pcb->flags is initialized.  I am wanting to change the pcb->flags from TF_ACK_DELAY to TF_ACK_NOW.

 

 

I want to see if the behavior changes if I change the value.  I am running TCP on Xilinx.  Basically the echo.c test.

Thank You,

  Gary Olson