53 lines
1.2 KiB
Java
53 lines
1.2 KiB
Java
package de.teamteamteam.spacescooter.threads;
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public abstract class TimingThread extends Thread {
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private long workInterval;
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/**
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* This method sets the actual working interval based on hz.
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*
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* @param hz
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*/
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public void setHz(int hz) {
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this.workInterval = (1000L * 1000L * 1000L) / (long) hz;
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}
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/**
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* This method takes care of the timing.
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*/
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public void run() {
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while (true) {
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long workStart = System.nanoTime();
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// do the actual work
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this.work();
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long workDone = System.nanoTime();
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//calculate time of work
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long workTime = (workDone - workStart);
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long timeToWait = this.workInterval - workTime;
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long msToWait = timeToWait / 1000000;
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// wait using sleep for bigger intervals
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if (msToWait > 1) {
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try {
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//make sure there is a little buffer for manual waiting loop left
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Thread.sleep(Math.max(0,(msToWait - 1)));
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} catch (InterruptedException e) {
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System.err.println("[" + this.getName() + "]" + e.getStackTrace());
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}
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}
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//wait manually for the rest of the interval
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long sleepUntil = workStart + this.workInterval;
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while ((sleepUntil- System.nanoTime()) > 100);
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}
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}
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/**
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* Do the actual thread work in here.
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*/
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public abstract void work();
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}
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