de.uka.ipd.sdq.scheduler.processes
Interface IActiveProcess

All Superinterfaces:

IRunningProcess

All Known Implementing Classes:

ActiveProcess, PreemptiveProcess, ProcessWithPriority

public interface IActiveProcess
extends IRunningProcess

Not externally visible methods for running processes.

Author:

jens

Method Summary

void	cancelProceedEvent() Cancels an already scheduled ProceedEvent, e.g.
boolean	checkAffinity(IResourceInstance instance) Checks if the given instance is in the set of affinity instances of the process.
IActiveProcess	createNewInstance(ISchedulableProcess process)
double	getCurrentDemand()
IResourceInstance	getIdealInstance()
IResourceInstance	getLastInstance()
IRunQueue	getRunQueue()
PROCESS_STATE	getState()
double	getTimeUntilNextInterruption()
boolean	hasAffinityList()
boolean	hasIdealInstance()
boolean	hasLastInstance()
boolean	isIdealInstance(IResourceInstance instance) Checks if the given instance is the ideal instance of the process.
boolean	isLastInstance(IResourceInstance instance)
boolean	isMovable(IResourceInstance targetInstance)
boolean	isReady()
boolean	isRunning()
boolean	isWaiting()
void	removeNonAffineInstances(List<IResourceInstance> instance_list) Removes all instances the process is not allowed to run on from the given list.
void	scheduleProceedEvent(IScheduler scheduler) Schedules a proceed event for the process at the time the current demand is expired.
void	setAffineInstances(List<IResourceInstance> instance_list) Sets the affine instances for the process.
void	setCurrentDemand(double new_demand) Sets the new demand for a process.
void	setDelayedAction(IDelayedAction action) Sets a delayed action for the process, that need to be executed as soon as the process is running.
void	setIdealInstance(IResourceInstance instance) Sets the ideal instance of the process.
void	setLastInstance(IResourceInstance instance) Sets the instance the process is or just was running on.
void	setReady() Change the current state of the process to ready.
void	setRunning() Change the current state of the process to running.
void	setRunQueue(IRunQueue runqueue) Sets the current runqueue of the process.
void	setWaiting() Change the current state of the process to waiting.
void	toNow() Proceeds all timing variables to the current simulation time.
void	update() Updates the process's timeslice and priority, if there is such.
void	wasMovedTo(IResourceInstance dest)

Methods inherited from interface de.uka.ipd.sdq.scheduler.IRunningProcess

addStateSensor, getId, getName, getSchedulableProcess, removeStateSensor

Method Detail

getRunQueue

IRunQueue getRunQueue()

Returns:

Returns the current runqueue of the process. NULL if the process is in no runqueue.

setRunQueue

void setRunQueue(IRunQueue runqueue)

Sets the current runqueue of the process.

Parameters:

runqueue -

getState

PROCESS_STATE getState()

Returns:

Returns the current state of the process.

setRunning

void setRunning()

Change the current state of the process to running.

setReady

void setReady()

Change the current state of the process to ready.

setWaiting

void setWaiting()

Change the current state of the process to waiting.

isRunning

boolean isRunning()

Returns:

True, if the process is in the running state, otherwise false.

isReady

boolean isReady()

Returns:

True, if the process is in the ready state, otherwise false.

isWaiting

boolean isWaiting()

Returns:

True, if the process is in the waiting state, otherwise false.

getCurrentDemand

double getCurrentDemand()

Returns:

Returns the current demand of the process.

setCurrentDemand

void setCurrentDemand(double new_demand)

Sets the new demand for a process. In order to do so, the current demand must be zero, i.e. has been completely processed.

Parameters:

new_demand -

toNow

void toNow()

Proceeds all timing variables to the current simulation time. The current demand is reduced only, if the process is in running state.

setAffineInstances

void setAffineInstances(List<IResourceInstance> instance_list)

Sets the affine instances for the process. The process is only allowed to run on these instances. If the list is set to NULL the process can run on any instance.

Parameters:

instance_list -

hasAffinityList

boolean hasAffinityList()

Returns:

True, if the process has a list of affinity instances, otherwise false.

checkAffinity

boolean checkAffinity(IResourceInstance instance)

Checks if the given instance is in the set of affinity instances of the process.

Parameters:

instance -

Returns:

removeNonAffineInstances

void removeNonAffineInstances(List<IResourceInstance> instance_list)

Removes all instances the process is not allowed to run on from the given list.

Parameters:

instance_list -

setIdealInstance

void setIdealInstance(IResourceInstance instance)

Sets the ideal instance of the process. That is the instance most preferred for the process.

Parameters:

instance -

hasIdealInstance

boolean hasIdealInstance()

Returns:

True, if the process has an ideal instance, otherwise false.

isIdealInstance

boolean isIdealInstance(IResourceInstance instance)

Checks if the given instance is the ideal instance of the process.

Parameters:

instance -

Returns:

True, if the instance is the process' ideal instance, otherwise false.

getIdealInstance

IResourceInstance getIdealInstance()

Returns:

Returns the ideal instance of the process.

setLastInstance

void setLastInstance(IResourceInstance instance)

Sets the instance the process is or just was running on.

Parameters:

instance -

hasLastInstance

boolean hasLastInstance()

Returns:

True, if the last instance of the process is set.

getLastInstance

IResourceInstance getLastInstance()

Returns:

If the process is in running state, the method returns the instance the process is currently running on. Otherwise, the instance the process was recently running on is returned.

isLastInstance

boolean isLastInstance(IResourceInstance instance)

Parameters:

instance -

Returns:

True, if the given instance is equal to the last instance of the process.

scheduleProceedEvent

void scheduleProceedEvent(IScheduler scheduler)

Schedules a proceed event for the process at the time the current demand is expired.

cancelProceedEvent

void cancelProceedEvent()

Cancels an already scheduled ProceedEvent, e.g. if the process is interrupted.

getTimeUntilNextInterruption

double getTimeUntilNextInterruption()

Returns:

Returns the time the process will be interrupted next.

setDelayedAction

void setDelayedAction(IDelayedAction action)

Sets a delayed action for the process, that need to be executed as soon as the process is running. Only one delayed action at a time is allowed.

Parameters:

action -

update

void update()

Updates the process's timeslice and priority, if there is such.

createNewInstance

IActiveProcess createNewInstance(ISchedulableProcess process)

isMovable

boolean isMovable(IResourceInstance targetInstance)

wasMovedTo

void wasMovedTo(IResourceInstance dest)