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java.lang.Object | +--java.lang.Thread | +--com.bbn.openmap.layer.vpf.RunQueue
Implement a very basic thread scheduling mechanism. TerminatingRunnable objects get added to the queue. As the thread gets cpu time, it will sequentially dequeue and run the objects in the queue in a LIFO order. Duplicates are allowed in the queue. Run will get called exactly once for each enqueue call. Only one thread will run at a time. (The next object won't run until the previous one completes.)
Runnable.run()
Field Summary |
Fields inherited from class java.lang.Thread |
MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY |
Constructor Summary | |
RunQueue()
default constructor. |
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RunQueue(boolean isDaemon,
int priority,
boolean autoStart)
construct a thread in the default ThreadGroup with a few options set |
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RunQueue(java.lang.ThreadGroup tg)
construct this thread in a particular ThreadGroup |
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RunQueue(java.lang.ThreadGroup tg,
boolean isDaemon,
int priority,
boolean autoStart)
construct a thread in the default ThreadGroup with a few options set |
Method Summary | |
void |
enqueue(TerminatingRunnable r)
Add an object to the queue of threads to run |
void |
run()
start going. |
Methods inherited from class java.lang.Thread |
activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public RunQueue()
public RunQueue(java.lang.ThreadGroup tg)
tg
- the ThreadGroup to be in. null
means
the current ThreadGrouppublic RunQueue(boolean isDaemon, int priority, boolean autoStart)
isDaemon
- true
means be a daemon thread,
false
means don't.priority
- the value to use when calling setPriorityautoStart
- true
means call this.start()Thread.start()
public RunQueue(java.lang.ThreadGroup tg, boolean isDaemon, int priority, boolean autoStart)
tg
- the ThreadGroup to be inisDaemon
- true
means be a daemon thread,
false
means don't.priority
- the value to use when calling setPriorityautoStart
- true
means call this.start()Thread.start()
Method Detail |
public void run()
run
in interface java.lang.Runnable
run
in class java.lang.Thread
public void enqueue(TerminatingRunnable r)
r
- the object to add
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