Package org.cloudbus.cloudsim.schedulers.cloudlet.network

Class CloudletTaskSchedulerSimple

java.lang.Object

org.cloudbus.cloudsim.schedulers.cloudlet.network.CloudletTaskSchedulerSimple

All Implemented Interfaces:

CloudletTaskScheduler

public class CloudletTaskSchedulerSimple
extends Object
implements CloudletTaskScheduler

Implements a policy of scheduling performed by a virtual machine to process CloudletTasks of a NetworkCloudlet.

It also schedules the network communication among the cloudlets, managing the time a cloudlet stays blocked waiting the response of a network package sent to another cloudlet.

Since:

CloudSim Plus 1.0

Author:

Saurabh Kumar Garg, Manoel Campos da Silva Filho

Field Summary

Fields inherited from interface org.cloudbus.cloudsim.schedulers.cloudlet.network.CloudletTaskScheduler

NULL

Constructor Summary

Constructors

Constructor	Description
CloudletTaskSchedulerSimple()	Creates a CloudletTaskSchedulerSimple object.

Method Summary

Modifier and Type	Method	Description
boolean	addPacketToListOfPacketsSentFromVm(VmPacket pkt)	Adds a packet to the list of packets sent by a given VM, targeting the VM of this scheduler.
void	clearVmPacketsToSend()	Clears the list of VmPacket's to send from the Vm of this scheduler to other VMs.
Vm	getVm()	Gets the Vm that the CloudletTaskScheduler will sent packets from or receive packets to.
List<VmPacket>	getVmPacketsToSend()	Gets a read-only list of VmPacket's to send from the Vm of this scheduler to other VMs.
boolean	isTimeToUpdateCloudletProcessing(Cloudlet cloudlet)	Checks if it's time to update the execution of a given Cloudlet.
void	processCloudletTasks(Cloudlet cloudlet, long partialFinishedMI)	Process Cloudlet's tasks, such as tasks to send packets from or received by a Cloudlet inside a VM.
void	setVm(Vm vm)	Sets the Vm that the CloudletTaskScheduler will sent packets from or receive packets to.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CloudletTaskSchedulerSimple

public CloudletTaskSchedulerSimple()

Creates a CloudletTaskSchedulerSimple object.

Method Detail

processCloudletTasks

public void processCloudletTasks(Cloudlet cloudlet,
                                 long partialFinishedMI)

Description copied from interface: CloudletTaskScheduler

Process Cloudlet's tasks, such as tasks to send packets from or received by a Cloudlet inside a VM.

Specified by:

processCloudletTasks in interface CloudletTaskScheduler

Parameters:

cloudlet - the Cloudlet to process packets

partialFinishedMI - the partial executed length of this Cloudlet (in MI)

isTimeToUpdateCloudletProcessing

public boolean isTimeToUpdateCloudletProcessing(Cloudlet cloudlet)

Description copied from interface: CloudletTaskScheduler

Checks if it's time to update the execution of a given Cloudlet. If the Cloudlet is waiting for packets to be sent or received, then it isn't time to update its processing.

Specified by:

isTimeToUpdateCloudletProcessing in interface CloudletTaskScheduler

Parameters:

cloudlet - the Cloudlet to check if it is time to update its execution

Returns:

true if its timie to update Cloudlet execution, false otherwise.

getVm

public Vm getVm()

Description copied from interface: CloudletTaskScheduler

Gets the Vm that the CloudletTaskScheduler will sent packets from or receive packets to.

Specified by:

getVm in interface CloudletTaskScheduler

Returns:

setVm

public void setVm(Vm vm)

Description copied from interface: CloudletTaskScheduler

Sets the Vm that the CloudletTaskScheduler will sent packets from or receive packets to. It is not required to manually set a Vm for the CloudletTaskScheduler, since the NetworkHost does it when it creates a Vm.

Specified by:

setVm in interface CloudletTaskScheduler

Parameters:

vm - the Vm to set

clearVmPacketsToSend

public void clearVmPacketsToSend()

Description copied from interface: CloudletTaskScheduler

Clears the list of VmPacket's to send from the Vm of this scheduler to other VMs.

Specified by:

clearVmPacketsToSend in interface CloudletTaskScheduler

getVmPacketsToSend

public List<VmPacket> getVmPacketsToSend()

Description copied from interface: CloudletTaskScheduler

Gets a read-only list of VmPacket's to send from the Vm of this scheduler to other VMs.

Specified by:

getVmPacketsToSend in interface CloudletTaskScheduler

Returns:

a read-only VmPacket list

addPacketToListOfPacketsSentFromVm

public boolean addPacketToListOfPacketsSentFromVm(VmPacket pkt)

Description copied from interface: CloudletTaskScheduler

Adds a packet to the list of packets sent by a given VM, targeting the VM of this scheduler. The source VM is got from the packet.

Specified by:

addPacketToListOfPacketsSentFromVm in interface CloudletTaskScheduler

Parameters:

pkt - packet to be added to the list

Returns:

true if the packet was added, false otherwise