1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
/*
* Copyright 2002, Statistics Research, Bell Labs, Lucent Technologies and
* The University of North Carolina at Chapel Hill
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Reference
* Stochastic Models for Generating Synthetic HTTP Source Traffic
* J. Cao, W.S. Cleveland, Y. Gao, K. Jeffay, F.D. Smith, and M.C. Weigle
* IEEE INFOCOM 2004.
*
* Documentation available at http://dirt.cs.unc.edu/packmime/
*
* Contacts: Michele Weigle (mcweigle@cs.unc.edu),
* Kevin Jeffay (jeffay@cs.unc.edu)
*/
#ifndef ns_packmimeOL_h
#define ns_packmimeOL_h
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "config.h"
#include "random.h"
#include "trafgen.h"
#include "ranvar.h"
/*
* Constant bit rate traffic source. Parameterized by interval, (optional)
* random noise in the interval, and packet size.
*/
class PackMimeOpenLoop : public TrafficGenerator {
public:
PackMimeOpenLoop();
virtual double next_interval(int&);
//HACK so that udp agent knows interpacket arrival time within a burst
int command(int argc, const char*const* argv);
protected:
virtual void start();
void init();
int size_;
int seqno_;
int maxpkts_;
// statistics objects
RandomVariable* pm_pac_ia_;
RandomVariable* pm_pac_size_;
// helper methods
TclObject* lookup_obj(const char* name) {
TclObject* obj = Tcl::instance().lookup(name);
if (obj == NULL)
fprintf(stderr, "Bad object name %s\n", name);
return obj;
}
inline int lookup_rv (RandomVariable*& rv, const char* name) {
if (rv != NULL)
Tcl::instance().evalf ("delete %s", rv->name());
rv = (RandomVariable*) lookup_obj (name);
return rv ? (TCL_OK) : (TCL_ERROR);
}
};
#endif
|
