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Copy pathObjectFIFOTest.java
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227 lines (193 loc) · 4.94 KB
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package threadbook.ch18;
public class ObjectFIFOTest extends Object {
private static void fullCheck(ObjectFIFO fifo) {
try {
// Sync'd to allow messages to print while
// condition is still true.
synchronized ( fifo ) {
while ( true ) {
fifo.waitUntilFull();
print("FULL");
fifo.waitWhileFull();
print("NO LONGER FULL");
}
}
} catch ( InterruptedException ix ) {
return;
}
}
private static void emptyCheck(ObjectFIFO fifo) {
try {
// Sync'd to allow messages to print while
// condition is still true.
synchronized ( fifo ) {
while ( true ) {
fifo.waitUntilEmpty();
print("EMPTY");
fifo.waitWhileEmpty();
print("NO LONGER EMPTY");
}
}
} catch ( InterruptedException ix ) {
return;
}
}
private static void consumer(ObjectFIFO fifo) {
try {
print("just entered consumer()");
for ( int i = 0; i < 3; i++ ) {
synchronized ( fifo ) {
Object obj = fifo.remove();
print("DATA-OUT - did remove(), obj=" + obj);
}
Thread.sleep(3000);
}
synchronized ( fifo ) {
boolean resultOfWait = fifo.waitUntilEmpty(500);
print("did waitUntilEmpty(500), resultOfWait=" +
resultOfWait + ", getSize()=" +
fifo.getSize());
}
for ( int i = 0; i < 3; i++ ) {
synchronized ( fifo ) {
Object[] list = fifo.removeAll();
print("did removeAll(), list.length=" +
list.length);
for ( int j = 0; j < list.length; j++ ) {
print("DATA-OUT - list[" + j + "]=" +
list[j]);
}
}
Thread.sleep(100);
}
for ( int i = 0; i < 3; i++ ) {
synchronized ( fifo ) {
Object[] list = fifo.removeAtLeastOne();
print(
"did removeAtLeastOne(), list.length=" +
list.length);
for ( int j = 0; j < list.length; j++ ) {
print("DATA-OUT - list[" + j + "]=" +
list[j]);
}
}
Thread.sleep(1000);
}
while ( !fifo.isEmpty() ) {
synchronized ( fifo ) {
Object obj = fifo.remove();
print("DATA-OUT - did remove(), obj=" + obj);
}
Thread.sleep(1000);
}
print("leaving consumer()");
} catch ( InterruptedException ix ) {
return;
}
}
private static void producer(ObjectFIFO fifo) {
try {
print("just entered producer()");
int count = 0;
Object obj0 = new Integer(count);
count++;
synchronized ( fifo ) {
fifo.add(obj0);
print("DATA-IN - did add(), obj0=" + obj0);
boolean resultOfWait = fifo.waitUntilEmpty(500);
print("did waitUntilEmpty(500), resultOfWait=" +
resultOfWait + ", getSize()=" +
fifo.getSize());
}
for ( int i = 0; i < 10; i++ ) {
Object obj = new Integer(count);
count++;
synchronized ( fifo ) {
fifo.add(obj);
print("DATA-IN - did add(), obj=" + obj);
}
Thread.sleep(1000);
}
Thread.sleep(2000);
Object obj = new Integer(count);
count++;
synchronized ( fifo ) {
fifo.add(obj);
print("DATA-IN - did add(), obj=" + obj);
}
Thread.sleep(500);
Integer[] list1 = new Integer[3];
for ( int i = 0; i < list1.length; i++ ) {
list1[i] = new Integer(count);
count++;
}
synchronized ( fifo ) {
fifo.addEach(list1);
print("did addEach(), list1.length=" +
list1.length);
}
Integer[] list2 = new Integer[8];
for ( int i = 0; i < list2.length; i++ ) {
list2[i] = new Integer(count);
count++;
}
synchronized ( fifo ) {
fifo.addEach(list2);
print("did addEach(), list2.length=" +
list2.length);
}
synchronized ( fifo ) {
fifo.waitUntilEmpty();
print("fifo.isEmpty()=" + fifo.isEmpty());
}
print("leaving producer()");
} catch ( InterruptedException ix ) {
return;
}
}
private static synchronized void print(String msg) {
System.out.println(
Thread.currentThread().getName() + ": " + msg);
}
public static void main(String[] args) {
final ObjectFIFO fifo = new ObjectFIFO(5);
Runnable fullCheckRunnable = new Runnable() {
public void run() {
fullCheck(fifo);
}
};
Thread fullCheckThread =
new Thread(fullCheckRunnable, "fchk");
fullCheckThread.setPriority(9);
fullCheckThread.setDaemon(true); // die automatically
fullCheckThread.start();
Runnable emptyCheckRunnable = new Runnable() {
public void run() {
emptyCheck(fifo);
}
};
Thread emptyCheckThread =
new Thread(emptyCheckRunnable, "echk");
emptyCheckThread.setPriority(8);
emptyCheckThread.setDaemon(true); // die automatically
emptyCheckThread.start();
Runnable consumerRunnable = new Runnable() {
public void run() {
consumer(fifo);
}
};
Thread consumerThread =
new Thread(consumerRunnable, "cons");
consumerThread.setPriority(7);
consumerThread.start();
Runnable producerRunnable = new Runnable() {
public void run() {
producer(fifo);
}
};
Thread producerThread =
new Thread(producerRunnable, "prod");
producerThread.setPriority(6);
producerThread.start();
}
}