LogWebTrafPool Class Reference

#include <logweb.h>

Inheritance diagram for LogWebTrafPool:

WebTrafPool PagePool TclObject TclObject Collaboration diagram for LogWebTrafPool:

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Detailed Description

Definition at line 78 of file logweb.h.

Public Member Functions

virtual int delay_bind_dispatch (const char *, const char *, TclObject *)
virtual void delay_bind_init_all ()
void doneSession (int idx)
int find_server (int)
int isdebug ()
void launchReq (Node *, void *, int, int)
void launchResp (int, Node *, Node *, Agent *, Agent *, int, void *)
 LogWebTrafPool ()
int nSink ()
int nTcp ()
int num_pages () const
int num_pages () const
void pick_ep (TcpAgent **, Agent **)
Node * pickdst ()
TcpSink * picksink ()
Node * picksrc ()
TcpAgent * picktcp ()
int run ()
virtual ~LogWebTrafPool ()

Protected Member Functions

virtual int command (int argc, const char *const *argv)
Agent * detachHead (AgentList *l)
void insertAgent (AgentList *l, Agent *a)
 LIST_HEAD (AgentList, AgentListElem)
TclObject * lookup_obj (const char *name)
TclObject * lookup_obj (const char *name)
int lookup_rv (RandomVariable *&rv, const char *name)

Protected Attributes

int asimflag_
Node ** client_
int dbTcp_a
int dbTcp_cr
int dbTcp_r
int debug_
int dont_recycle_
int duration_
double end_time_
int fulltcp_
int nClient_
int nServer_
int nSession_
int nSink_
int nTcp_
int num_pages_
int recycle_page_
WebServer * server_
WebTrafSession ** session_
AgentList sinkPool_
double start_time_
AgentList tcpPool_

Private Member Functions

int launchReq (int, int, int)
int loadLog (const char *)
Node * pickdst (int)
Node * picksrc (int)
int processLog ()
int start ()

Private Attributes

FILE * fp
request_s next_req
int num_obj
RequestTimer * req_timer
double start_t

Constructor & Destructor Documentation

LogWebTrafPool::LogWebTrafPool (   ) 
 

Definition at line 77 of file logweb.cc.

References request_s::client, next_req, num_obj, req_timer, request_s::server, request_s::size, start_t, and request_s::time.

00077                                {
00078     num_obj = 0;
00079     // initialize next request
00080     next_req.time = 0;
00081     next_req.client = 0;
00082     next_req.server = 0;
00083     next_req.size = 0;
00084 
00085     // initialize request timer
00086     req_timer = new RequestTimer(this);
00087     start_t = 0;
00088 }

LogWebTrafPool::~LogWebTrafPool (   )  [virtual]
 

Definition at line 90 of file logweb.cc.

References fp, and req_timer.

00090                                 {
00091     if (fp)
00092         fclose(fp);
00093     if (req_timer) delete req_timer;
00094 }

Member Function Documentation

int LogWebTrafPool::command (  int  argc,
const char *const *  argv
)  [protected, virtual]
 

Reimplemented from WebTrafPool.

Definition at line 171 of file logweb.cc.

References WebTrafPool::command(), loadLog(), and start().

00171                                                             {
00172     if (argc == 2) {
00173         if (strcmp(argv[1], "start") == 0) {
00174             if (start())
00175                 return (TCL_OK);
00176             else
00177                 return (TCL_ERROR);
00178             
00179         }
00180         
00181     } else if (argc == 3) {
00182         if (strcmp(argv[1], "loadLog") == 0) {
00183             if (loadLog(argv[2]))
00184                 return (TCL_OK);
00185             else
00186                 return (TCL_ERROR);
00187 
00188         } else if (strcmp(argv[1], "doneObj") == 0) {
00189             return (TCL_OK);
00190         } 
00191     }
00192     return WebTrafPool::command(argc, argv);
00193 }

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int WebTrafPool::delay_bind_dispatch (  const char *  ,
const char *  ,
TclObject * 
)  [virtual, inherited]
 

Definition at line 271 of file webtraf.cc.

References WebTrafPool::debug_.

00273 {
00274     if (delay_bind_bool(varName, localName, "debug_", &debug_, tracer)) 
00275         return TCL_OK;
00276     return PagePool::delay_bind_dispatch(varName, localName, tracer);
00277 }

void WebTrafPool::delay_bind_init_all (   )  [virtual, inherited]
 

Definition at line 265 of file webtraf.cc.

00266 {
00267     delay_bind_init_one("debug_");
00268     PagePool::delay_bind_init_all();
00269 }

Agent* WebTrafPool::detachHead (  AgentList *  l  )  [inline, protected, inherited]
 

Definition at line 178 of file webtraf.h.

References a, WebTrafPool::AgentListElem::agt_, and LIST_REMOVE.

Referenced by WebTrafPool::picksink(), and WebTrafPool::picktcp().

00178                                            {
00179         AgentListElem *e = l->lh_first;
00180         if (e == NULL)
00181             return NULL;
00182         Agent *a = e->agt_;
00183         LIST_REMOVE(e, link);
00184         delete e;
00185         return a;
00186     }

void WebTrafPool::doneSession (  int  idx  )  [inline, inherited]
 

Definition at line 117 of file webtraf.h.

References WebTrafPool::isdebug(), WebTrafPool::nSession_, and WebTrafPool::session_.

00117                                      { 
00118         assert((idx>=0) && (idx<nSession_) && (session_[idx]!=NULL));
00119         if (isdebug())
00120             printf("deleted session %d\n", idx);
00121         delete session_[idx];
00122         session_[idx] = NULL; 
00123     }

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int WebTrafPool::find_server (  int   )  [inherited]
 

Definition at line 405 of file webtraf.cc.

References WebTrafPool::nServer_, and WebTrafPool::server_.

00405                                     {
00406     int n = 0;
00407     while (server_[n].get_nid() != sid && n < nServer_) {
00408         n++;
00409     }
00410     
00411     return(n);
00412 }

void WebTrafPool::insertAgent (  AgentList *  l,
Agent *  a
)  [inline, protected, inherited]
 

Definition at line 174 of file webtraf.h.

References WebTrafPool::AgentListElem::AgentListElem(), and LIST_INSERT_HEAD.

00174                                                     {
00175         AgentListElem *e = new AgentListElem(a);
00176         LIST_INSERT_HEAD(l, e, link);
00177     }

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int WebTrafPool::isdebug (   )  [inline, inherited]
 

Definition at line 129 of file webtraf.h.

References WebTrafPool::debug_.

Referenced by WebTrafSession::donePage(), WebTrafPool::doneSession(), WebTrafSession::expire(), and WebPage::expire().

00129 { return debug_; }

void WebTrafPool::launchReq (  Node *  ,
void *  ,
int  ,
int 
)  [inherited]
 

Definition at line 353 of file webtraf.cc.

References Node::address(), Scheduler::clock(), WebPage::dst(), WebPage::id(), Scheduler::instance(), WebTrafPool::nSink(), WebTrafPool::nTcp(), and WebTrafPool::pick_ep().

Referenced by WebTrafSession::launchReq().

00353                                                                          {
00354     TcpAgent *ctcp;
00355     Agent *csnk;
00356 
00357     // Allocation new TCP connections for both directions
00358     pick_ep(&ctcp, &csnk);
00359 
00360     WebPage* pg = (WebPage*)ClntData;
00361 
00362     // Setup TCP connection and done
00363     Tcl::instance().evalf("%s launch-req %d %d %s %s %s %s %d %d", 
00364                   name(), obj, pg->id(),
00365                   src_->name(), pg->dst()->name(),
00366                   ctcp->name(), csnk->name(), size, ClntData);
00367 
00368     // Debug only
00369     // $numPacket_ $objectId_ $pageId_ $sessionId_ [$ns_ now] src dst
00370 #if 0
00371     printf("%d \t %d \t %d \t %d \t %g %d %d\n", size, obj, pg->id(), id_,
00372            Scheduler::instance().clock(), 
00373            src_->address(), pg->dst()->address());
00374     printf("** Tcp agents %d, Tcp sinks %d\n", nTcp(),nSink());
00375 #endif
00376 }

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int LogWebTrafPool::launchReq (  int  ,
int  ,
int 
)  [private]
 

Definition at line 149 of file logweb.cc.

References client, num_obj, WebTrafPool::pick_ep(), WebTrafPool::pickdst(), WebTrafPool::picksrc(), and server.

Referenced by run().

00149                                                         {
00150     TcpAgent *tcp;
00151     Agent *snk;
00152     
00153     // Allocation new TCP connections for both directions
00154     pick_ep(&tcp, &snk);
00155 
00156     // pick client and server nodes
00157     Node* client = picksrc(cid);
00158     Node* server = pickdst(sid);
00159 
00160     int num_pkt = size / 1000 + 1;
00161 
00162     // Setup TCP connection and done
00163     Tcl::instance().evalf("%s launch-req %d %d %s %s %s %s %d %d", 
00164                   name(), num_obj++, num_obj,
00165                   client->name(), server->name(),
00166                   tcp->name(), snk->name(), num_pkt, NULL);
00167 
00168     return(1);
00169 }

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void WebTrafPool::launchResp (  int  ,
Node *  ,
Node *  ,
Agent *  ,
Agent *  ,
int  ,
void * 
)  [inherited]
 

Definition at line 379 of file webtraf.cc.

References Scheduler::clock(), WebPage::id(), Scheduler::instance(), WebTrafPool::nSink(), and WebTrafPool::nTcp().

Referenced by WebServer::job_arrival(), and WebServer::job_departure().

00379                                                                                                                   {
00380     int pid;
00381     pid = obj_id;
00382 
00383     // Get webpage (client data) if any
00384     if (ClntData) {
00385         WebPage* pg = (WebPage*)ClntData;
00386         pid = pg->id();
00387     }
00388 
00389     // Setup TCP connection and done
00390     Tcl::instance().evalf("%s launch-resp %d %d %s %s %s %s %d %d", 
00391                   name(), obj_id, pid, svr_->name(), clnt_->name(),
00392                   tcp->name(), snk->name(), size, ClntData);
00393 
00394     // Debug only
00395     // $numPacket_ $objectId_ $pageId_ $sessionId_ [$ns_ now] src dst
00396 #if 0
00397     printf("%d \t %d \t %d \t %d \t %g %d %d\n", size, obj, pg->id(), id_,
00398            Scheduler::instance().clock(), 
00399            src_->address(), pg->dst()->address());
00400     printf("** Tcp agents %d, Tcp sinks %d\n", nTcp(),nSink());
00401 #endif
00402 }

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WebTrafPool::LIST_HEAD (  AgentList  ,
AgentListElem 
)  [protected, inherited]
 

int LogWebTrafPool::loadLog (  const char *   )  [private]
 

Definition at line 96 of file logweb.cc.

References fp.

Referenced by command().

00096                                                 {
00097     fp = fopen(filename, "r");
00098     if (fp == 0)
00099         return(0);
00100     
00101     return(1);
00102 }

TclObject* PagePool::lookup_obj (  const char *  name  )  [inline, protected, inherited]
 

Definition at line 273 of file pagepool.h.

00273                                             {
00274         TclObject* obj = Tcl::instance().lookup(name);
00275         if (obj == NULL) 
00276             fprintf(stderr, "Bad object name %s\n", name);
00277         return obj;
00278     }

TclObject* PagePool::lookup_obj (  const char *  name  )  [inline, protected, inherited]
 

Definition at line 30 of file persconn.h.

Referenced by EmpFtpTrafPool::command(), WebTrafPool::lookup_rv(), EmpWebTrafPool::lookup_rv(), EmpFtpTrafPool::lookup_rv(), WebTrafPool::picksink(), EmpWebTrafPool::picksink(), EmpFtpTrafPool::picksink(), WebTrafPool::picktcp(), EmpWebTrafPool::picktcp(), and EmpFtpTrafPool::picktcp().

00030                                             {
00031         TclObject* obj = Tcl::instance().lookup(name);
00032         if (obj == NULL) 
00033             fprintf(stderr, "Bad object name %s\n", name);
00034         return obj;
00035     }

int WebTrafPool::lookup_rv (  RandomVariable *&  rv,
const char *  name
)  [inline, protected, inherited]
 

Definition at line 193 of file webtraf.h.

References PagePool::lookup_obj().

00193                                                                 {
00194         if (rv != NULL)
00195             Tcl::instance().evalf("delete %s", rv->name());
00196         rv = (RandomVariable*)lookup_obj(name);
00197         return rv ? (TCL_OK) : (TCL_ERROR);
00198     }

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int WebTrafPool::nSink (   )  [inline, inherited]
 

Definition at line 128 of file webtraf.h.

References WebTrafPool::nSink_.

Referenced by WebTrafPool::launchReq(), and WebTrafPool::launchResp().

00128 { return nSink_; }

int WebTrafPool::nTcp (   )  [inline, inherited]
 

Definition at line 127 of file webtraf.h.

References WebTrafPool::nTcp_.

Referenced by WebTrafPool::launchReq(), and WebTrafPool::launchResp().

00127 { return nTcp_; }

int PagePool::num_pages (   )  const [inline, inherited]
 

Definition at line 264 of file pagepool.h.

References PagePool::num_pages_.

00264 { return num_pages_; }

int PagePool::num_pages (   )  const [inline, inherited]
 

Definition at line 21 of file persconn.h.

References PagePool::num_pages_.

00021 { return num_pages_; }

void WebTrafPool::pick_ep (  TcpAgent **  ,
Agent ** 
)  [inherited]
 

Definition at line 340 of file webtraf.cc.

References WebTrafPool::fulltcp_, WebTrafPool::picksink(), and WebTrafPool::picktcp().

Referenced by WebTrafPool::launchReq(), and launchReq().

00340                                                      {
00341     // Choose source
00342     *tcp = picktcp();
00343 
00344     // Choose destination
00345     if (fulltcp_) {
00346         *snk = picktcp();
00347     } else {
00348         *snk = picksink();
00349     }
00350 }

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Node * WebTrafPool::pickdst (   )  [inherited]
 

Definition at line 333 of file webtraf.cc.

References WebTrafPool::nServer_, WebTrafPool::server_, and Random::uniform().

Referenced by WebTrafSession::expire(), and launchReq().

00333                            {
00334     int n = int(floor(Random::uniform(0, nServer_)));
00335     assert((n >= 0) && (n < nServer_));
00336     return(server_[n].get_node());
00337 }

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Node * LogWebTrafPool::pickdst (  int   )  [private]
 

Definition at line 143 of file logweb.cc.

References WebServer::get_node(), WebTrafPool::nServer_, and WebTrafPool::server_.

00143                                     {
00144     int n = id % nServer_;
00145     assert((n >= 0) && (n < nServer_));
00146     return server_[n].get_node();
00147 }

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TcpSink * WebTrafPool::picksink (   )  [inherited]
 

Definition at line 311 of file webtraf.cc.

References a, abort(), WebTrafPool::detachHead(), PagePool::lookup_obj(), WebTrafPool::nSink_, and WebTrafPool::sinkPool_.

Referenced by WebTrafPool::pick_ep().

00312 {
00313     TcpSink* a = (TcpSink*)detachHead(&sinkPool_);
00314     if (a == NULL) {
00315         Tcl& tcl = Tcl::instance();
00316         tcl.evalf("%s alloc-tcp-sink", name());
00317         a = (TcpSink*)lookup_obj(tcl.result());
00318         if (a == NULL) {
00319             fprintf(stderr, "Failed to allocate a TCP sink\n");
00320             abort();
00321         }
00322     } else 
00323         nSink_--;
00324     return a;
00325 }

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Node * WebTrafPool::picksrc (   )  [inherited]
 

Definition at line 327 of file webtraf.cc.

References WebTrafPool::client_, WebTrafPool::nClient_, and Random::uniform().

Referenced by launchReq().

00327                            {
00328     int n = int(floor(Random::uniform(0, nClient_)));
00329     assert((n >= 0) && (n < nClient_));
00330     return client_[n];
00331 }

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Node * LogWebTrafPool::picksrc (  int   )  [private]
 

Definition at line 137 of file logweb.cc.

References WebTrafPool::client_, and WebTrafPool::nClient_.

00137                                     {
00138     int n = id % nClient_;
00139     assert((n >= 0) && (n < nClient_));
00140     return client_[n];
00141 }

TcpAgent * WebTrafPool::picktcp (   )  [inherited]
 

Definition at line 294 of file webtraf.cc.

References a, abort(), WebTrafPool::detachHead(), PagePool::lookup_obj(), WebTrafPool::nTcp_, and WebTrafPool::tcpPool_.

Referenced by WebTrafPool::pick_ep().

00295 {
00296     TcpAgent* a = (TcpAgent*)detachHead(&tcpPool_);
00297     if (a == NULL) {
00298         Tcl& tcl = Tcl::instance();
00299         tcl.evalf("%s alloc-tcp", name());
00300         a = (TcpAgent*)lookup_obj(tcl.result());
00301         if (a == NULL) {
00302             fprintf(stderr, "Failed to allocate a TCP agent\n");
00303             abort();
00304         }
00305     } else 
00306         nTcp_--;
00307     //printf("A# %d\n", dbTcp_a++);
00308     return a;
00309 }

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int LogWebTrafPool::processLog (   )  [private]
 

Definition at line 110 of file logweb.cc.

References request_s::client, client, Scheduler::clock(), fp, Scheduler::instance(), next_req, req_timer, TimerHandler::resched(), request_s::server, server, request_s::size, start_t, and request_s::time.

Referenced by run(), and start().

00110                                {
00111     int time, client, server, size;
00112 
00113     if (!feof(fp)) {
00114         fscanf(fp, "%d %d %d %d\n", &time, &client, &server, &size);
00115         // save information for next request
00116         next_req.time = time;
00117         next_req.client = client;
00118         next_req.server = server;
00119         next_req.size = size;   
00120 
00121         double now = Scheduler::instance().clock();
00122         double delay = time + start_t - now;
00123         req_timer->resched(delay);
00124 
00125         return(1);
00126 
00127     } else 
00128         return(0);
00129 }

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int LogWebTrafPool::run (   ) 
 

Definition at line 131 of file logweb.cc.

References request_s::client, launchReq(), next_req, processLog(), request_s::server, and request_s::size.

Referenced by RequestTimer::expire().

00131                         {
00132     launchReq(next_req.client, next_req.server, next_req.size);
00133     processLog();
00134     return(1);
00135 }

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int LogWebTrafPool::start (   )  [private]
 

Definition at line 104 of file logweb.cc.

References Scheduler::clock(), Scheduler::instance(), processLog(), and start_t.

Referenced by command().

00104                           {
00105     start_t = Scheduler::instance().clock();
00106     processLog();
00107     return(1);
00108 }

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Field Documentation

int WebTrafPool::asimflag_ [protected, inherited]
 

Definition at line 162 of file webtraf.h.

Referenced by WebTrafPool::command(), and WebTrafPool::WebTrafPool().

Node** WebTrafPool::client_ [protected, inherited]
 

Definition at line 159 of file webtraf.h.

Referenced by WebTrafPool::command(), WebTrafPool::picksrc(), picksrc(), and WebTrafPool::~WebTrafPool().

int WebTrafPool::dbTcp_a [protected, inherited]
 

Definition at line 188 of file webtraf.h.

Referenced by WebTrafPool::WebTrafPool().

int WebTrafPool::dbTcp_cr [protected, inherited]
 

Definition at line 188 of file webtraf.h.

Referenced by WebTrafPool::WebTrafPool().

int WebTrafPool::dbTcp_r [protected, inherited]
 

Definition at line 188 of file webtraf.h.

Referenced by WebTrafPool::WebTrafPool().

int WebTrafPool::debug_ [protected, inherited]
 

Definition at line 199 of file webtraf.h.

Referenced by WebTrafPool::delay_bind_dispatch(), and WebTrafPool::isdebug().

int WebTrafPool::dont_recycle_ [protected, inherited]
 

Definition at line 205 of file webtraf.h.

Referenced by WebTrafPool::WebTrafPool().

int PagePool::duration_ [protected, inherited]
 

Definition at line 27 of file persconn.h.

Referenced by ProxyTracePagePool::command(), CompMathPagePool::command(), MathPagePool::command(), TracePagePool::command(), MediaPagePool::command(), and MediaPagePool::MediaPagePool().

double PagePool::end_time_ [protected, inherited]
 

Definition at line 26 of file persconn.h.

Referenced by CompMathPagePool::command(), MathPagePool::command(), TracePagePool::command(), MediaPagePool::command(), and TracePagePool::load_page().

FILE* LogWebTrafPool::fp [private]
 

Definition at line 89 of file logweb.h.

Referenced by loadLog(), processLog(), and ~LogWebTrafPool().

int WebTrafPool::fulltcp_ [protected, inherited]
 

Definition at line 201 of file webtraf.h.

Referenced by WebTrafPool::pick_ep(), and WebTrafPool::WebTrafPool().

int WebTrafPool::nClient_ [protected, inherited]
 

Definition at line 158 of file webtraf.h.

Referenced by WebTrafPool::command(), WebTrafPool::picksrc(), and picksrc().

request_s LogWebTrafPool::next_req [private]
 

Definition at line 94 of file logweb.h.

Referenced by LogWebTrafPool(), processLog(), and run().

int WebTrafPool::nServer_ [protected, inherited]
 

Definition at line 152 of file webtraf.h.

Referenced by WebTrafPool::command(), WebTrafPool::find_server(), WebTrafPool::pickdst(), and pickdst().

int WebTrafPool::nSession_ [protected, inherited]
 

Definition at line 148 of file webtraf.h.

Referenced by WebTrafPool::command(), WebTrafPool::doneSession(), and WebTrafPool::~WebTrafPool().

int WebTrafPool::nSink_ [protected, inherited]
 

Definition at line 187 of file webtraf.h.

Referenced by WebTrafPool::nSink(), and WebTrafPool::picksink().

int WebTrafPool::nTcp_ [protected, inherited]
 

Definition at line 187 of file webtraf.h.

Referenced by WebTrafPool::nTcp(), and WebTrafPool::picktcp().

int LogWebTrafPool::num_obj [private]
 

Definition at line 90 of file logweb.h.

Referenced by launchReq(), and LogWebTrafPool().

int PagePool::num_pages_ [protected, inherited]
 

Definition at line 24 of file persconn.h.

Referenced by ClientPagePool::add_page(), EPATracePagePool::command(), ProxyTracePagePool::command(), ClientPagePool::command(), CompMathPagePool::command(), TracePagePool::command(), MediaPagePool::command(), CompMathPagePool::CompMathPagePool(), TracePagePool::get_page(), ProxyTracePagePool::init_page(), TracePagePool::load_page(), MathPagePool::MathPagePool(), PagePool::num_pages(), and ClientPagePool::remove_page().

int WebTrafPool::recycle_page_ [protected, inherited]
 

Definition at line 203 of file webtraf.h.

Referenced by WebTrafPool::WebTrafPool().

RequestTimer* LogWebTrafPool::req_timer [private]
 

Definition at line 93 of file logweb.h.

Referenced by LogWebTrafPool(), processLog(), and ~LogWebTrafPool().

WebServer* WebTrafPool::server_ [protected, inherited]
 

Definition at line 155 of file webtraf.h.

Referenced by WebTrafPool::command(), WebTrafPool::find_server(), WebTrafPool::pickdst(), pickdst(), and WebTrafPool::~WebTrafPool().

WebTrafSession** WebTrafPool::session_ [protected, inherited]
 

Definition at line 149 of file webtraf.h.

Referenced by WebTrafPool::command(), WebTrafPool::doneSession(), and WebTrafPool::~WebTrafPool().

AgentList WebTrafPool::sinkPool_ [protected, inherited]
 

Definition at line 190 of file webtraf.h.

Referenced by WebTrafPool::picksink(), and WebTrafPool::WebTrafPool().

double LogWebTrafPool::start_t [private]
 

Definition at line 92 of file logweb.h.

Referenced by LogWebTrafPool(), processLog(), and start().

double PagePool::start_time_ [protected, inherited]
 

Definition at line 25 of file persconn.h.

Referenced by TracePagePool::change_time(), ProxyTracePagePool::command(), CompMathPagePool::command(), MathPagePool::command(), TracePagePool::command(), MediaPagePool::command(), TracePagePool::load_page(), and ProxyTracePagePool::load_req().

AgentList WebTrafPool::tcpPool_ [protected, inherited]
 

Definition at line 189 of file webtraf.h.

Referenced by WebTrafPool::picktcp(), and WebTrafPool::WebTrafPool().

The documentation for this class was generated from the following files:
Generated on Tue Mar 6 17:12:55 2007 for ns2 Network Simulator 2.29 by  doxygen 1.4.6