Switch Class Reference

Routes each request to a processing or a streaming LoadBalancer. More...

#include <Switch.h>

Public Member Functions
	Switch (std::unique_ptr< LoadBalancer > processing, std::unique_ptr< LoadBalancer > streaming)
	Creates a switch that owns both load balancers.
bool	route (const Request &request, unsigned long cycle)
	Sends one request to the load balancer for its job type.
void	start ()
	Starts both load balancers (records starting queues, dispatches at time 0).
void	processCycle (unsigned long cycle, const std::vector< Request > &arrivals)
	Splits this cycle's arrivals by job type and runs one cycle on both load balancers.
LoadBalancer &	processing ()
LoadBalancer &	streaming ()
unsigned long	routedProcessing () const
unsigned long	routedStreaming () const

Detailed Description

Routes each request to a processing or a streaming LoadBalancer.

The switch sits in front of two independent load balancers. Requests with JobType::Processing ('P') go to one, requests with JobType::Streaming ('S') go to the other. Each load balancer keeps its own queue and scales its own server pool, so a surge in one kind of traffic does not slow the other.

Definition at line 24 of file Switch.h.

Constructor & Destructor Documentation

Switch()

Switch::Switch	(	std::unique_ptr< LoadBalancer >	processing,
		std::unique_ptr< LoadBalancer >	streaming )

Creates a switch that owns both load balancers.

Parameters

processing	Load balancer for 'P' requests.
streaming	Load balancer for 'S' requests.

Definition at line 11 of file Switch.cpp.

Member Function Documentation

route()

bool Switch::route	(	const Request &	request,
		unsigned long	cycle )

Sends one request to the load balancer for its job type.

Parameters

request	Request to route.
cycle	Current clock cycle.

Returns

True if the receiving load balancer queued the request.

Definition at line 18 of file Switch.cpp.

start()

void Switch::start

(

)

Starts both load balancers (records starting queues, dispatches at time 0).

Definition at line 27 of file Switch.cpp.

processCycle()

void Switch::processCycle	(	unsigned long	cycle,
		const std::vector< Request > &	arrivals )

Splits this cycle's arrivals by job type and runs one cycle on both load balancers.

Parameters

cycle	Clock cycle being simulated.
arrivals	Requests generated during this cycle.

Definition at line 32 of file Switch.cpp.

processing()

LoadBalancer & Switch::processing

(

)

Returns

Load balancer that handles processing requests.

Definition at line 48 of file Switch.cpp.

streaming()

LoadBalancer & Switch::streaming

(

)

Returns

Load balancer that handles streaming requests.

Definition at line 50 of file Switch.cpp.

routedProcessing()

unsigned long Switch::routedProcessing

(

)

const

Returns

Requests routed to the processing load balancer.

Definition at line 52 of file Switch.cpp.

routedStreaming()

unsigned long Switch::routedStreaming

(

)

const

Returns

Requests routed to the streaming load balancer.

Definition at line 54 of file Switch.cpp.

---

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

• Switch.h
• Switch.cpp