Author: allain.lalonde
Date: Fri Jul 17 14:24:34 2009
New Revision: 492
Modified:
piccolo2d.java/trunk/examples/src/main/java/edu/umd/cs/piccolo/examples/pswing/PSwingMemoryLeakExample.java
Log:
Adding # of times finalizers are called.
Modified:
piccolo2d.java/trunk/examples/src/main/java/edu/umd/cs/piccolo/examples/pswing/PSwingMemoryLeakExample.java
==============================================================================
---
piccolo2d.java/trunk/examples/src/main/java/edu/umd/cs/piccolo/examples/pswing/PSwingMemoryLeakExample.java
(original)
+++
piccolo2d.java/trunk/examples/src/main/java/edu/umd/cs/piccolo/examples/pswing/PSwingMemoryLeakExample.java
Fri Jul 17 14:24:34 2009
@@ -57,9 +57,13 @@
/** Default serial version UID. */
private static final long serialVersionUID = 1L;
- /** Counter. */
- private final PText counter;
+ /** Active Instances Counter. */
+ private final PText activeInstanceCounter;
+ /** Garbage Collected Counter. */
+ private final PText gcInstanceCounter;
+
+
/** Memory. */
private final PText freeMemory;
@@ -83,7 +87,9 @@
super("PSwing memory leak example");
PText label0 = new PText("Number of active PSwingCanvases:");
- counter = new PText("0");
+ activeInstanceCounter = new PText("0");
+ PText label4 = new PText("Number of finalized PSwingCanvases:");
+ gcInstanceCounter = new PText("0");
PText label1 = new PText("Total memory:");
totalMemory = new PText("0");
PText label2 = new PText("Free memory:");
@@ -92,17 +98,21 @@
usedMemory = new PText("0");
label0.offset(20.0d, 20.0d);
- counter.offset(label0.getFullBounds().getWidth() + 40.0d, 20.0d);
- label1.offset(20.0d, 40.0d);
- totalMemory.offset(label1.getFullBounds().getWidth() + 40.0d,
40.0d);
- label2.offset(20.0d, 60.0d);
- freeMemory.offset(label2.getFullBounds().getWidth() + 40.0d,
60.0d);
- label3.offset(freeMemory.getFullBounds().getX() + 80.0d, 60.0d);
- usedMemory.offset(label3.getFullBounds().getX() +
label3.getFullBounds().getWidth() + 20.0d, 60.0d);
+ activeInstanceCounter.offset(label0.getFullBounds().getWidth() +
50.0d, 20.0d);
+ label4.offset(20.0d, 40.0d);
+ gcInstanceCounter.offset(label4.getFullBounds().getWidth() +
50.0d, 40.0d);
+ label1.offset(20.0d, 60.0d);
+ totalMemory.offset(label1.getFullBounds().getWidth() + 40.0d,
60.0d);
+ label2.offset(20.0d, 80.0d);
+ freeMemory.offset(label2.getFullBounds().getWidth() + 40.0d,
80.0d);
+ label3.offset(freeMemory.getFullBounds().getX() + 80.0d, 80.0d);
+ usedMemory.offset(label3.getFullBounds().getX() +
label3.getFullBounds().getWidth() + 20.0d, 80.0d);
canvas = new PCanvas();
canvas.getCamera().addChild(label0);
- canvas.getCamera().addChild(counter);
+ canvas.getCamera().addChild(activeInstanceCounter);
+ canvas.getCamera().addChild(label4);
+ canvas.getCamera().addChild(gcInstanceCounter);
canvas.getCamera().addChild(label1);
canvas.getCamera().addChild(totalMemory);
canvas.getCamera().addChild(label2);
@@ -119,7 +129,7 @@
getContentPane().add("North", canvas);
getContentPane().add("Center", mainPanel);
- final Timer add = new Timer(250, new ActionListener()
+ final Timer add = new Timer(10, new ActionListener()
{
int id = 0;
@@ -127,7 +137,11 @@
public void actionPerformed(final ActionEvent e) {
JLabel label = new JLabel("Label" + id);
PSwing pswing = new PSwing(label);
- PSwingCanvas pswingCanvas = new PSwingCanvas();
+ PSwingCanvas pswingCanvas = new PSwingCanvas() {
+ public void finalize() {
+
gcInstanceCounter.setText(String.valueOf(Integer.parseInt(gcInstanceCounter.getText())+1));
+ }
+ };
pswingCanvas.getLayer().addChild(pswing);
pswingCanvas.setPreferredSize(new Dimension(60, 18));
mainPanel.add(pswingCanvas);
@@ -156,6 +170,9 @@
mainPanel.validate();
mainPanel.repaint();
decrementCounter();
+
+ System.gc();
+ System.runFinalization();
}
}
});
@@ -185,18 +202,18 @@
* Increment counter.
*/
private void incrementCounter() {
- int count = Integer.parseInt(counter.getText());
+ int count = Integer.parseInt(activeInstanceCounter.getText());
count++;
- counter.setText(String.valueOf(count));
+ activeInstanceCounter.setText(String.valueOf(count));
}
/**
* Decrement counter.
*/
private void decrementCounter() {
- int count = Integer.parseInt(counter.getText());
+ int count = Integer.parseInt(activeInstanceCounter.getText());
count--;
- counter.setText(String.valueOf(count));
+ activeInstanceCounter.setText(String.valueOf(count));
}
/**
--~--~---------~--~----~------------~-------~--~----~
Piccolo2D Developers Group: http://groups.google.com/group/piccolo2d-dev?hl=en
-~----------~----~----~----~------~----~------~--~---
