javax.realtime
Class GarbageCollector

java.lang.Object
  javax.realtime.GarbageCollector

public abstract class GarbageCollector
extends java.lang.Object

Jamaica Real-Time Specification for Java class GarbageCollector.

Constructor Summary

GarbageCollector()
Deprecated. RTSJ V1.0.1 the user application cannot create its own garbage collector.

Method Summary

abstract RelativeTime

getPreemptionLatency() getPreemptionLatency returns the maximum time required for any schedulable object to preempt ongoing garbage collection activity.

Methods inherited from class java.lang.Object

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

Constructor Detail

GarbageCollector

public GarbageCollector()

Deprecated. RTSJ V1.0.1 the user application cannot create its own garbage collector.

Constructor to create an instance of GarbageCollector.

Method Detail

getPreemptionLatency

public abstract RelativeTime getPreemptionLatency()

getPreemptionLatency returns the maximum time required for any schedulable object to preempt ongoing garbage collection activity. Thread of class NoHeapRealtimeThread or AsyncEventHandlers with option no-heap will not suffer from this preemption delay since these threads can always be executed independently of the state of the garbage collector. Any other thread may be blocked by the garbage collector for the time returned by this function. For JamaicaVM, any thread can preempt garbage collection activity at the normal thread preemption delay specified via the Jamaica builder option -threadPreemption , typically a few hundred machine instructions.

Returns:

the GC preemption latency