Class TCPStatusInfo

File: src/transport/contract/TCPCommand.msg

Sent with message kind TCP_I_STATUS, in response to command TCP_C_STATUS. For explanation of variables, see RFC 793 or TCPStateVariables in TCPConnection.h.

See also: TcpStatusInd, TcpCommandCode, TCP

Usage diagram:

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Inheritance diagram:

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Extends:

TCPCommand (class)

Control info for TCP connections. This class is to be set as control info (see cMessage::setControlInfo()) on all messages exchanged between TCP and application, in both directions. Some commands and indications (TCP_C_OPEN_xxx, TCP_I_STATUS) use subclasses.

Fields:

Name	Type	Description
connId	int	identifies the socket within the application
snd_up	unsigned int
irs	unsigned int
snd_max	unsigned int
state	int
iss	unsigned int
fin_ack_rcvd	bool
snd_wl2	unsigned int
snd_wl1	unsigned int
rcv_nxt	unsigned int
snd_wnd	unsigned int
snd_mss	unsigned int
userId	int	id than can be freely used by the app
stateName	string
snd_nxt	unsigned int
rcv_wnd	unsigned int
snd_una	unsigned int
remotePort	int
localPort	int
rcv_up	unsigned int
localAddr	IPvXAddress
remoteAddr	IPvXAddress

Source code:

//
// Sent with message kind TCP_I_STATUS, in response to command TCP_C_STATUS.
// For explanation of variables, see RFC 793 or TCPStateVariables in
// TCPConnection.h.
//
// @see TcpStatusInd, TcpCommandCode, TCP
//
class TCPStatusInfo extends TCPCommand
{
    int state;
    string stateName;

    IPvXAddress localAddr;
    IPvXAddress remoteAddr;
    int localPort;
    int remotePort;

    unsigned int snd_mss;

    unsigned int snd_una;
    unsigned int snd_nxt;
    unsigned int snd_max;
    unsigned int snd_wnd;
    unsigned int snd_up;
    unsigned int snd_wl1;
    unsigned int snd_wl2;
    unsigned int iss;

    unsigned int rcv_nxt;
    unsigned int rcv_wnd;
    unsigned int rcv_up;
    unsigned int irs;

    bool fin_ack_rcvd;
}