From: Keith Packard <keithp@keithp.com>
Date: Wed, 11 May 2016 05:50:23 +0000 (-0700)
Subject: altosuilib: Rate limit map loading pacifier updates
X-Git-Tag: 1.6.4~1^2~53
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=2e551e7c5f82a7e35d39e8f73e8e526e5484cd5d

altosuilib: Rate limit map loading pacifier updates

Just updating the pacifier was consuming a huge amount of CPU. Update
no more than once every 100ms.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/altosuilib/AltosUIMapPreloadNew.java b/altosuilib/AltosUIMapPreloadNew.java
index cce07ab4..d6c257e0 100644
--- a/altosuilib/AltosUIMapPreloadNew.java
+++ b/altosuilib/AltosUIMapPreloadNew.java
@@ -153,8 +153,12 @@ public class AltosUIMapPreloadNew extends AltosUIFrame implements ActionListener
 
 	double	latitude, longitude;
 
+	long	loader_notify_time;
+
 	/* AltosMapLoaderListener interfaces */
 	public void loader_start(final int max) {
+		loader_notify_time = System.currentTimeMillis();
+
 		SwingUtilities.invokeLater(new Runnable() {
 				public void run() {
 					pbar.setMaximum(max);
@@ -167,6 +171,13 @@ public class AltosUIMapPreloadNew extends AltosUIFrame implements ActionListener
 	}
 
 	public void loader_notify(final int cur, final int max, final String name) {
+		long	now = System.currentTimeMillis();
+
+		if (now - loader_notify_time < 100)
+			return;
+
+		loader_notify_time = now;
+
 		SwingUtilities.invokeLater(new Runnable() {
 				public void run() {
 					pbar.setValue(cur);