|
|||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--javax.realtime.Scheduler | +--javax.realtime.PriorityScheduler
Field Summary | |
static int |
MAX_PRIORITY
|
static int |
MIN_PRIORITY
|
Constructor Summary | |
protected |
PriorityScheduler()
|
Method Summary | |
protected boolean |
addToFeasibility(Schedulable schedulable)
Inform the scheduler that this thread's ReleaseParameters should be considered in
feasibility analysis until further notified. |
void |
fireSchedulable(Schedulable schedulable)
Trigger the execution of a schedulable object (like an AsyncEventHandler ). |
int |
getMaxPriority()
Returns the maximum priority available for a thread managed by this scheduler. |
static int |
getMaxPriority(java.lang.Thread thread)
If the given thread is scheduled by the required PriorityScheduler the maximum priority of
the PriorityScheduler is returned otherwise Thread.MAX_PRIORITY is returned. |
int |
getMinPriority()
Returns the minimum priority available for a thread managed by this scheduler. |
static int |
getMinPriority(java.lang.Thread thread)
If the given thread is scheduled by the required PriorityScheduler the minimum priority of
the PriorityScheduler is returned otherwise Thread.MIN_PRIORITY is returned. |
int |
getNormPriority()
Returns the normal priority available for a thread managed by this scheduler. |
static int |
getNormPriority(java.lang.Thread thread)
If the given thread is scheduled by the required PriorityScheduler the normal priority of
the PriorityScheduler is returned otherwise Thread.NORM_PRIORITY is returned. |
java.lang.String |
getPolicyName()
Used to determine the policy of the Scheduler . |
static PriorityScheduler |
instance()
Return a pointer to an instance of PriorityScheduler . |
boolean |
isFeasible()
Returns true if and only if the system is able to satisfy the constraints expressed in the release parameters of the existing schedulable objects. |
protected boolean |
removeFromFeasibility(Schedulable schedulable)
Inform the scheduler that this thread's ReleaseParameters should not be considered in
feasibility analysis until further notified. |
boolean |
setIfFeasible(Schedulable schedulable,
ReleaseParameters release,
MemoryParameters memory)
Returns true if, after changing the Schedulable 's release and GC parameters
isFeasible would return true. |
boolean |
setIfFeasible(Schedulable schedulable,
ReleaseParameters release,
MemoryParameters memory,
ProcessingGroupParameters group)
|
Methods inherited from class javax.realtime.Scheduler |
getDefaultScheduler,
setDefaultScheduler |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
Field Detail |
public static final int MAX_PRIORITY
public static final int MIN_PRIORITY
Constructor Detail |
protected PriorityScheduler()
Method Detail |
public boolean isFeasible()
public static PriorityScheduler instance()
PriorityScheduler
.protected boolean addToFeasibility(Schedulable schedulable)
ReleaseParameters
should be considered in
feasibility analysis until further notified.protected boolean removeFromFeasibility(Schedulable schedulable)
ReleaseParameters
should not be considered in
feasibility analysis until further notified.public boolean setIfFeasible(Schedulable schedulable, ReleaseParameters release, MemoryParameters memory)
Schedulable
's release and GC parameters
isFeasible would return true. The parameters wil
be changed. If the resulting system would not be
feasible, this method returns false and no changes
are made.schedulable
- The Schedulable
object for which to check admittance.
If null nothing happens.release
- The proposed ReleaseParameters
. If null, no
change is made.memory
- The proposed MemoryParameters
. If null, no
change is made.public boolean setIfFeasible(Schedulable schedulable, ReleaseParameters release, MemoryParameters memory, ProcessingGroupParameters group)
public void fireSchedulable(Schedulable schedulable)
AsyncEventHandler
).h
- The schedulable object to make active.public int getMaxPriority()
public static int getMaxPriority(java.lang.Thread thread)
PriorityScheduler
the maximum priority of
the PriorityScheduler
is returned otherwise Thread.MAX_PRIORITY is returned.thread
- An instance of Thread. If null the maximum priority of the required
PriorityScheduler
is returned.public int getMinPriority()
public static int getMinPriority(java.lang.Thread thread)
PriorityScheduler
the minimum priority of
the PriorityScheduler
is returned otherwise Thread.MIN_PRIORITY is returned.thread
- An instance of Thread. If null the minimum priority of the required
PriorityScheduler
is returned.public int getNormPriority()
public static int getNormPriority(java.lang.Thread thread)
PriorityScheduler
the normal priority of
the PriorityScheduler
is returned otherwise Thread.NORM_PRIORITY is returned.thread
- An instance of Thread. If null the normal priority of the required
PriorityScheduler
is returned.public java.lang.String getPolicyName()
Scheduler
.
|
|||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |