class Resource

a generic simulated object that something can request service from

Inheritance:

Public Methods

Resource(const string newName = "Resource", const ID newID = 0)

Default constructor

virtual ~Resource()

Destructor

virtual bool activate(const int numberOfServers = 1)

"Turn on" the resource.

FacStatus request(const Token& tkn)

Request service from the resource

bool release(const int tkn_id)

Stop using resource's service

bool clear(const int tkn_id)

Release the facility from servicing the current token and dump any queued requests.

bool isServicing(const int tkn_id) const

TIME getInUseTime(void) const

Returns the amount of time the facility has been in use during the simulation

Inherited from SimObj:

Public Methods

string getName(void) const

ID getID(void) const

void setName(const string newName)

void setID(const ID newID)

virtual string toString(void) const

Documentation

A resource is just a SimObj with a SIMPACK facility attached to it (plus attendant methods to make interfacing with the facility easy). Every object in the simulation that provides a service (e.g. CPU, RAM) should be a child of resource

Resource(const string newName = "Resource", const ID newID = 0)

virtual ~Resource()

virtual bool activate(const int numberOfServers = 1)

Nothing can request service from resources until they are activated. Once activated, a resource can not be turned off.

FacStatus request(const Token& tkn)

A token can request service from a resource. If the resource is not busy, it will accept the request.

Returns:

Whether the resource was busy or not.

bool release(const int tkn_id)

Every time something finishes with a resource, they must release it. It is the only way the resource knows that it is done.

Returns:

True if the resource was released. False if the token was never receiving service from this resource in the first place

bool clear(const int tkn_id)

bool isServicing(const int tkn_id) const

Returns:

true if the given token is receiving service from this resource. False if it is not.

TIME getInUseTime(void) const

This method is mainly used for collecting metrics.

Direct child classes:

NetSwitch
Link
Disk
CPU

Author:

John Oleszkiewicz

Alphabetic index HTML hierarchy of classes or Java