C_TrafficModel Class Reference

Inheritance diagram for C_TrafficModel:

List of all members.

Public Member Functions
	C_TrafficModel ()
virtual	~C_TrafficModel ()
int	init (long P_averageRate, long P_maxCreationPerPeriod, long P_setupTime, long P_rateScale)
void	start ()
void	call_created ()
virtual int	authorize_new_call ()=0
long	get_current_period_duration ()
unsigned long	get_desired_rate ()
void	change_desired_rate (unsigned long P_rate)
void	increase_desired_rate ()
void	decrease_desired_rate ()
void	change_max_created_calls (unsigned long P_max)
void	change_rate_scale (long P_rateScale)
Protected Member Functions
void	update ()
void	reset ()
void	re_init ()
Protected Attributes
C_Semaphore *	m_sem_desired
C_Semaphore *	m_sem_max
C_Semaphore *	m_sem_created_call
C_Semaphore *	m_sem_created_call_period
long	m_currentTrafficDuration
long	m_desiredAverageRate
long	m_createdCallNb
long	m_currentPeriodDuration
long	m_maxNbCreationPerPeriod
long	m_periodDuration
long	m_nbCallCreatedInPeriod
timeval	m_startTrafficDate
timeval	m_startPeriodDate
timeval	m_currentTimeval
long	ms_setup_time
long	m_rateScale

---

Detailed Description

Definition at line 27 of file C_TrafficModel.hpp.

---

Constructor & Destructor Documentation

C_TrafficModel::C_TrafficModel (   )

authorize_new_call The following internal variables are used (see also update()): m_desiredAverageRate (in) m_createdCallNb (in) m_maxNbCreationPerPeriod (in) m_periodDuration (in) m_currentTrafficDuration (in) Definition at line 248 of file C_TrafficModel.cpp. References m_sem_created_call, m_sem_created_call_period, m_sem_desired, and m_sem_max. { NEW_VAR(m_sem_desired, C_Semaphore()); NEW_VAR(m_sem_max, C_Semaphore()); NEW_VAR(m_sem_created_call, C_Semaphore()); NEW_VAR(m_sem_created_call_period, C_Semaphore()); }

---

Member Function Documentation

virtual int C_TrafficModel::authorize_new_call (   )  [pure virtual]

authorize_new_call. Parameters: P_cot  : (out) Returns: a positive value if new calls are allowed, and zero if not Implemented in C_TrafficDistribBestEffort, C_TrafficDistribPoisson, and C_TrafficDistribUniform.

void C_TrafficModel::call_created (   )

Indicates a new call has effectively been created Definition at line 124 of file C_TrafficModel.cpp. References m_createdCallNb, m_nbCallCreatedInPeriod, m_sem_created_call, m_sem_created_call_period, C_Semaphore::P(), and C_Semaphore::V(). Referenced by C_CallControlClient::makeCallContextUnavailable(). { m_sem_created_call->P(); m_createdCallNb++; m_sem_created_call->V(); m_sem_created_call_period->P(); m_nbCallCreatedInPeriod++; m_sem_created_call_period->V(); }

int C_TrafficModel::init (  long  P_averageRate, long  P_maxCreationPerPeriod, long  P_setupTime, long  P_rateScale )

Initialization This method initializes the traffic model manager. Parameters: P_averageRate  : desired average call creation rate per second P_maxCreationPerPeriod  : maximum number of calls created per period (1s) P_cotRate  : percentage of COT among created calls Note : in order to manage properly burst mechanism, the max number of call creation within a period shall be superior to the average rate, or 0 for no limit Returns: 0 if success and -1 if failure Definition at line 97 of file C_TrafficModel.cpp. References m_createdCallNb, m_currentPeriodDuration, m_currentTrafficDuration, m_desiredAverageRate, m_maxNbCreationPerPeriod, m_nbCallCreatedInPeriod, m_periodDuration, m_rateScale, and ms_setup_time. { m_desiredAverageRate = P_averageRate; m_maxNbCreationPerPeriod = P_maxCreationPerPeriod; m_periodDuration = 1000; m_nbCallCreatedInPeriod = 0; m_currentTrafficDuration = 0; m_createdCallNb = 0; m_currentPeriodDuration = 0; ms_setup_time = P_setupTime * 1000; m_rateScale = P_rateScale ; return (0); }

void C_TrafficModel::start (   )

Start This method must be called just before traffic start. Definition at line 116 of file C_TrafficModel.cpp. References m_currentTimeval, m_startPeriodDate, and m_startTrafficDate. Referenced by C_CallControlClient::init_done(), and C_CallControlClient::start_traffic(). { GET_TIME (&m_startTrafficDate); GET_TIME (&m_startPeriodDate); GET_TIME (&m_currentTimeval); }

void C_TrafficModel::update (   )  [protected]

Update internal variables The following global variables are used : m_currentTimeval The following internal variables are used : m_currentTrafficDuration (out) m_startTrafficDate (in) m_currentPeriodDuration (out) m_startPeriodDate (in) m_periodDuration (in) m_nbCallCreatedInPeriod (out) Definition at line 54 of file C_TrafficModel.cpp. References m_currentPeriodDuration, m_currentTimeval, m_currentTrafficDuration, m_sem_created_call, m_startPeriodDate, m_startTrafficDate, C_Semaphore::P(), and C_Semaphore::V(). Referenced by C_TrafficDistribUniform::authorize_new_call(), C_TrafficDistribPoisson::authorize_new_call(), and C_TrafficDistribBestEffort::authorize_new_call(). { GET_TIME(&m_currentTimeval); // Period duration : ti - tp in mili-seconds m_sem_created_call->P(); m_currentPeriodDuration = (m_currentTimeval.tv_sec - m_startPeriodDate.tv_sec)*1000 + (m_currentTimeval.tv_usec - m_startPeriodDate.tv_usec)/1000; //std::cerr << "update m_currentPeriodDuration " << m_currentPeriodDuration << std::endl; // Traffic duration : ti - T0 in mili-seconds m_currentTrafficDuration = (m_currentTimeval.tv_sec - m_startTrafficDate.tv_sec ) * 1000 + (m_currentTimeval.tv_usec - m_startTrafficDate.tv_usec ) / 1000; m_sem_created_call->V(); } /* end of update */

---

The documentation for this class was generated from the following files:

• C_TrafficModel.hpp
• C_TrafficModel.cpp

---