TcpSessionAgent

class <Agent/TCP/Session> TcpSessionAgent : public CorresHost

This class implements the notion of a TCP session

Inheritance:

Public Fields
static Islist <TcpSessionAgent> sessionList_: inline nsaddr_t& addr() {return addr_;} inline nsaddr_t& dst() {return dst_;}

Public Methods
virtual void add_agent(IntTcpAgent *agent, int size, double winMult, int winInc, int ssthresh)
virtual Segment* add_pkts(int size, int seqno, int sessionSeqno, int daddr, int dport, int sport, double ts, IntTcpAgent *sender)
void cancel_rtx_timer()
void cancel_timers()
int command(int argc, const char*const* argv)
int findSessionSeqno(IntTcpAgent *sender, int seqno)
int fs_pkt()
void newack(Packet *pkt)
void quench(int how, IntTcpAgent *sender, int seqno)
void recv(IntTcpAgent *agent, Packet *pkt, int amt_data_acked)
void removeSessionSeqno(int sessionSeqno)
void reset_dyn_weights()
void reset_rtx_timer(int mild, int backoff = 1): XXX mild needed ?
void rtt_update_exact(double tao)
void send_much(IntTcpAgent *agent, int force, int reason)
void set_rtx_timer()
void set_weight(IntTcpAgent *tcp, int wt)
void setflags(Packet *pkt)
TcpSessionAgent()
void timeout(int tno)
virtual void traceVar(TracedVar* v)
IntTcpAgent* who_to_snd(int how)
int window()

Protected Fields
SessionBurstSndTimer burstsnd_timer_
IntTcpAgent* curConn_
int dynWtSum_
Segment* last_seg_sent_
double last_send_time_
int numConsecSegs_
SessionRtxTimer rtx_timer_
int schedDisp_
int sessionSeqno_
int wtSum_

Inherited from CorresHost:

Public Methods
void adjust_ownd(int size)
void agent_frcov(IntTcpAgent *)
void agent_ftout(IntTcpAgent *)
void agent_rcov(IntTcpAgent *)
void agent_tout(IntTcpAgent *)
int clean_segs(int size, Packet *pkt, IntTcpAgent *sender, int sessionSeqno, int amt_data_acked)
void closecwnd(int how, double ts, IntTcpAgent *sender=0)
void closecwnd(int how, IntTcpAgent *sender=0)
void del_agent(IntTcpAgent *)
int ok_to_snd(int size)
void opencwnd(int size, IntTcpAgent *sender=0)
int rmv_old_segs(Packet *pkt, IntTcpAgent *sender, int amt_data_acked)

Protected Fields
double closecwTS_
Islist_iter <IntTcpAgent> * connIter_
Islist <IntTcpAgent> conns_
Segment* curArray_[MAX_PARALLEL_CONN]
int disableIntLossRecov_
int dontAdjustOwnd_
int dontIncrCwnd_
int fixedIw_
double lastackTS_
u_int nActive_
u_int nFastRec_
u_int nTimeout_
TracedDouble ownd_
TracedDouble owndCorrection_
Segment* prevArray_[MAX_PARALLEL_CONN]
int proxyopt_
int rexmtSegCount_
Segment* rtt_seg_
Islist <Segment> seglist_
Event timer_
int winInc_
double winMult_
double wndInit_

Protected Methods
inline void cancel()

Private Fields
friend class IntTcpAgent

Inherited from slink:

Public Fields
int key_
slink* next_

Inherited from TcpFsAgent:

Public Methods
virtual void output_helper(Packet* pkt)
virtual void partialnewack_helper(Packet*)
virtual void recv_helper(Packet* pkt)
virtual void recv_newack_helper(Packet* pkt)
double rtt_exact_timeout()
virtual void send_helper(int maxburst)
virtual void send_idle_helper()
virtual void timeout_nonrtx(int tno)
virtual void timeout_nonrtx_helper(int tno)

Protected Fields
int count_bytes_acked_
int fast_loss_recov_
int fast_reset_timer_
int fs_enable_
int fs_endseq_
int fs_mode_
int fs_startseq_
double last_recv_time_
ResetTimer reset_timer_
double t_exact_rttvar_
double t_exact_srtt_

Inherited from TcpAgent:

Public Methods
virtual void advanceby(int delta)
Agent/TCP instproc done {}
virtual void sendmsg(int nbytes, const char *flags = 0)
Agent/TCP instproc source type
void trace(TracedVar* v)

Protected Fields
double awnd_
int Backoffs
double base_cwnd_
double boot_time_
int bug_fix_
int closed_
int cong_action_
int control_increase_
int count_
TracedInt curseq_
TracedDouble cwnd_
double decrease_num_
int delay_growth_
DelSndTimer delsnd_timer_
TracedInt dupacks_
int ecn_
int ecn_backoff_
int ecn_burst_
int ect_
int eln_
int eln_last_rxmit_
int eln_rxmit_thresh_
int EnblRTTCtr_
int F_counting
int F_full
double fcnt_
int first_decrease_
double firstsent_
TracedInt highest_ack_
double increase_num_
int last_ack_
int last_cwnd_action_
int maxburst_
int maxcwnd_
double maxrto_
TracedInt maxseq_
TracedInt nackpack_
int nam_tracevar_
TracedInt ndatabytes_
TracedInt ndatapack_
TracedInt nrexmit_
TracedInt nrexmitbytes_
TracedInt nrexmitpack_
int off_tcp_
int old_ecn_
double overhead_
FILE* plotfile_
int prev_highest_ack_
int QOption_
int recover_
int restart_bugfix_
int rtt_active_
int RTT_count
int RTT_goodcount
int RTT_prev
int rtt_seq_
double rtt_ts_
int rttvar_exp_
int rttvar_init_
double rtxcur_init_
TracedInt singledup_
int slow_start_restart_
int srtt_init_
TracedInt ssthresh_
int syn_
TracedInt t_backoff_
int T_full
int T_last
int T_prev
TracedInt t_rtt_
TracedInt t_rttvar_
int T_RTTVAR_BITS
double t_rtxcur_
TracedInt t_seqno_
TracedInt t_srtt_
int T_SRTT_BITS
int T_start
double tcp_tick_
int tcpip_base_hdr_size_
int trace_all_oneline_
int ts_option_
double ts_peer_
int W_timed
int W_used
double wnd_
double wnd_const_
double wnd_init_
int wnd_init_option_
int wnd_option_
double wnd_restart_
double wnd_th_

Protected Methods
virtual int delay_bind_dispatch(const char *varName, const char *localName, TclObject *tracer)
virtual void delay_bind_init_all()
virtual void dupack_action()
void ecn(int seqno)
void finish()
double initial_window()
virtual void newtimer(Packet*)
virtual void output(int seqno, int reason = 0)
void print_if_needed(double memb_time)
void process_qoption_after_ack(int seqno)
void process_qoption_after_send()
void reset()
void reset_qoption()
virtual void rtt_backoff()
void rtt_counting()
virtual void rtt_init()
virtual double rtt_timeout()
virtual void rtt_update(double tao)
virtual void send_one()
virtual void set_initial_window()
void slowdown(int how)
void tcp_eln(Packet *pkt)
void traceAll()

Protected
#define T_RTT_BITS

Inherited from Agent:

Public Fields
Agent instvar agent_port_
Agent instvar dst_addr_
Agent instvar dst_port_
Agent instvar namTrace_
Agent instvar tg_

Public Methods
inline nsaddr_t& addr()
Agent instproc attach-app {s_type}
Agent instproc attach-source {s_type}
Agent instproc attach-tbf { tbf }
Agent instproc attach-trace { file }
virtual void attachApp(Application* app)
virtual void close()
Agent instproc connect d
virtual void connect(nsaddr_t dst)
inline nsaddr_t& daddr()
inline nsaddr_t& dport()
Agent instproc dst-port {}
Agent instproc init args
virtual void listen()
inline nsaddr_t& port()
Agent instproc port {}
virtual void send(int nbytes)
void send(Packet* p, Handler* h)
virtual void send(int sz, AppData *data)
virtual void sendto(int sz, AppData*, const char* flags = 0)
virtual void sendto(int nbytes, const char* flags, nsaddr_t dst)
Agent instproc set args
void set_pkttype(packet_t pkttype)
virtual int& size()
Agent instproc traffic-source agent

Protected Fields
Application* app_
Tcl_Channel channel_
int class_
int defttl_
ns_addr_t dst_
int fid_
int flags_
ns_addr_t here_
int off_ip_
OldValue* oldValueList_
int prio_
int seqno_
int size_
char* traceName_
packet_t type_
static int uidcnt_

Protected Methods
void addAgentTrace(const char *name)
Packet* allocpkt()
Packet* allocpkt(int)
void deleteAgentTrace()
void dumpTracedVars()
virtual void idle()
void initpkt(Packet*)
void insertOldValue(TracedVar *v, const char *value)
OldValue* lookupOldValue(TracedVar *v)
void monitorAgentTrace()
virtual void recvBytes(int bytes)

Private Methods
void flushAVar(TracedVar *v)

Inherited from Connector:

Public Methods
virtual void drop(Packet* p)
inline NsObject* target()

Protected Fields
NsObject* drop_
NsObject* target_

Protected Methods
virtual void drop(Packet* p, const char *s)

Inherited from NsObject:

Public Methods
virtual void debug(const char *fmt, ...)
int isdebug()

Protected Fields
int debug_
int off_cmn_
int off_flags_

Protected Methods
void handle(Event*)

Inherited from Handler:

Documentation

This class implements the notion of a TCP session. It integrates congestion control and loss detection functionality across the one or more IntTcp connections that comprise the session.

TcpSessionAgent()

int command(int argc, const char*const* argv)

void reset_rtx_timer(int mild, int backoff = 1)