com.syncbuilder.util
Class TimeSlicer

java.lang.Object
  |
  +--com.syncbuilder.util.TimeSlicer

public class TimeSlicer

extends java.lang.Object

implements java.lang.Runnable

This class simulates time-sliced multi-threading on a system that can only provide round-robin green threads.

Constructor Summary

TimeSlicer(int base_priority)

Method Summary

void	addThread(java.lang.Thread thread)
void	run() The core of the scheduler.
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeSlicer

public TimeSlicer(int base_priority)

Method Detail

run

public void run()

The core of the scheduler. It works like this: There is one master thread which runs with a priority of base_priority + 2 (this run()-method actually is the run()- method of that thread). This master thread takes one of the threads it is supposed to schedule, raises that thread's priority to base_priority + 1, and then goes to sleep, thus giving the thread with the raised priority a chance to run. When the master thread wakes up, it puts the thread's priority back to base_priority, like all the other threads, and picks the next thread for execution, raises that thread's priority, ...

Specified by:

run in interface java.lang.Runnable

start

public void start()

stop

public void stop()

addThread

public void addThread(java.lang.Thread thread)