public void run() {
float f;
if (getName().startsWith("R")) locker.enterAppThread();
else locker.enterLockerThread();
for (int i = 0; i < 500000000; i++) f = (float) i;
if (getName().startsWith("R")) locker.exitAppThread();
else locker.exitLockerThread();
}
public static void main(String[] args) {
JavaConcurrencyReentrantReadWriteLocker locker = new JavaConcurrencyReentrantReadWriteLocker();
locker.init(null);
T[] readers = new T[24];
T[] writers = new T[5];
for (int i = 0; i < 12; i++) {
readers[i] = locker.new T("Reader " + i, locker);
readers[i].start();
}
for (int i = 0; i < writers.length; i++) {
writers[i] = locker.new T("Writer " + i, locker);
writers[i].start();
}
for (int i = 12; i < 24; i++) {
readers[i] = locker.new T("Reader " + i, locker);
readers[i].start();
}
}