--- jsr166/src/jsr166e/DoubleMaxUpdater.java 2013/01/06 05:57:42 1.6
+++ jsr166/src/jsr166e/DoubleMaxUpdater.java 2014/05/04 22:38:19 1.10
@@ -5,10 +5,7 @@
*/
package jsr166e;
-import java.io.IOException;
import java.io.Serializable;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
/**
* One or more variables that together maintain a running {@code double}
@@ -60,13 +57,13 @@ public class DoubleMaxUpdater extends St
*/
public void update(double x) {
long lx = Double.doubleToRawLongBits(x);
- Cell[] as; long b, v; HashCode hc; Cell a; int n;
+ Cell[] as; long b, v; int[] hc; Cell a; int n;
if ((as = cells) != null ||
(Double.longBitsToDouble(b = base) < x && !casBase(b, lx))) {
boolean uncontended = true;
- int h = (hc = threadHashCode.get()).code;
- if (as == null || (n = as.length) < 1 ||
- (a = as[(n - 1) & h]) == null ||
+ if ((hc = threadHashCode.get()) == null ||
+ as == null || (n = as.length) < 1 ||
+ (a = as[(n - 1) & hc[0]]) == null ||
(Double.longBitsToDouble(v = a.value) < x &&
!(uncontended = a.cas(v, lx))))
retryUpdate(lx, hc, uncontended);
@@ -75,7 +72,7 @@ public class DoubleMaxUpdater extends St
/**
* Returns the current maximum. The returned value is
- * NOT an atomic snapshot: Invocation in the absence of
+ * NOT an atomic snapshot; invocation in the absence of
* concurrent updates returns an accurate result, but concurrent
* updates that occur while the value is being calculated might
* not be incorporated.
@@ -185,8 +182,8 @@ public class DoubleMaxUpdater extends St
s.writeDouble(max());
}
- private void readObject(ObjectInputStream s)
- throws IOException, ClassNotFoundException {
+ private void readObject(java.io.ObjectInputStream s)
+ throws java.io.IOException, ClassNotFoundException {
s.defaultReadObject();
busy = 0;
cells = null;