NED File src/inet/transportlayer/tcp_lwip/TcpLwipConnection.ned

Name	Type	Description
TcpLwipConnection	simple module	Represents a single TCP connection in the LwIP (Lightweight IP) TCP stack implementation. Manages connection state, processes application commands, handles data transfer through send and receive queues, and provides statistics about connection parameters such as window sizes and sequence numbers.

Source code

//
// Copyright (C) 2004 OpenSim Ltd.
// Copyright (C) 2009-2010 Thomas Reschka
// Copyright (C) 2010 OpenSim Ltd.
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//

package inet.transportlayer.tcp_lwip;

//
// Represents a single TCP connection in the LwIP (Lightweight IP) TCP stack
// implementation. Manages connection state, processes application commands,
// handles data transfer through send and receive queues, and provides
// statistics about connection parameters such as window sizes and sequence
// numbers.
//
simple TcpLwipConnection {
    parameters:
        @signal[state];    // FSM state
        @signal[sndWnd];    // Snd_wnd
        @signal[sndNxt];    // Sent seqNo
        @signal[sndAck];    // Sent ackNo
        @signal[rcvWnd];    // Rcv_wnd
        @signal[rcvSeq];    // Received seqNo
        @signal[rcvAck];    // Received ackNo (=snd_una)

        @statistic[sndWnd](record=vector; interpolationmode=sample-hold);    // Snd_wnd
        @statistic[sndNxt](record=vector; interpolationmode=sample-hold);    // Sent seqNo
        @statistic[sndAck](record=vector; interpolationmode=sample-hold);    // Sent ackNo
        @statistic[rcvWnd](record=vector; interpolationmode=sample-hold);    // Rcv_wnd
        @statistic[rcvSeq](record=vector; interpolationmode=sample-hold);    // Received seqNo
        @statistic[rcvAck](record=vector; interpolationmode=sample-hold);    // Received ackNo (=snd_una)
}