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Final version

pull/2/head
obaya 2025-05-03 20:09:04 +02:00
parent 3cee7198b9
commit 285200c86e
1 changed files with 33 additions and 21 deletions
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20
pp.A1-CondPhilosophers/src/main/java/pp/Philosopher.java
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@ -3,13 +3,14 @@ package pp;
import java.util.Random; import java.util.Random;
import java.util.concurrent.locks.Condition; import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class Philosopher extends Thread implements IPhilosopher { public class Philosopher extends Thread implements IPhilosopher {
private int seat; private int seat;
private Philosopher rechts; private Philosopher rechts;
private Philosopher links; private Philosopher links;
private Lock table; private Lock table;
private Condition condition ; private Condition condition;
private volatile boolean stopped; private volatile boolean stopped;
private volatile boolean eating; private volatile boolean eating;
private final Random random; private final Random random;
@ -20,6 +21,12 @@ public class Philosopher extends Thread implements IPhilosopher {
this.stopped = false; this.stopped = false;
} }
public static void main(String... args) {
// TODO
}
@Override @Override
public void run() { public void run() {
try { try {
@ -36,10 +43,13 @@ public class Philosopher extends Thread implements IPhilosopher {
table.lock(); table.lock();
try { try {
while(this.links.eating || this.rechts.eating) while (this.links.eating || this.rechts.eating) {
log(seat, " : isst gerade!");
this.condition.await(); this.condition.await();
}
this.eating = true; this.eating = true;
}finally { } finally {
table.unlock(); table.unlock();
} }
Thread.sleep(this.random.nextInt(PhilosopherExperiment.MAX_EATING_DURATION_MS)); Thread.sleep(this.random.nextInt(PhilosopherExperiment.MAX_EATING_DURATION_MS));
@ -58,7 +68,6 @@ public class Philosopher extends Thread implements IPhilosopher {
} }
} }
@Override @Override
public void setLeft(IPhilosopher left) { public void setLeft(IPhilosopher left) {
// TODO Auto-generated method stub // TODO Auto-generated method stub
@ -92,4 +101,7 @@ public class Philosopher extends Thread implements IPhilosopher {
this.stopped = true; this.stopped = true;
interrupt(); interrupt();
} }
} }