Steve Hannah shannah

Software developer who blogs occasionally

shannah / not_working.m

Created October 6, 2012 21:02

JNI method that crashes

	JNIEXPORT jstring JNICALL Java_ca_weblite_mactools_Sandbox_saveDialog
	(JNIEnv *env, jobject jthis, jstring title, jstring extension){
	JNF_COCOA_ENTER(env);
	jstring path;
	//@autoreleasepool {

	NSString *cocoaExtension = JNFJavaToNSString(env, extension);

	NSSavePanel *panel = [NSSavePanel savePanel];
	NSArray *types = [NSArray arrayWithObjects: cocoaExtension,nil];

shannah / TowersOfHanoi.java

Created December 6, 2012 22:22

Towers Of Hanoi class used for benchmarking CodenameOne


	package com.mycompany.myapp;

	public class TowersOfHanoi {

	public static void move(int n, int startPole, int endPole) {
	if (n == 0) {
	return;
	}
	int intermediatePole = 6 - startPole - endPole;

shannah / StateMachine.java

Created December 6, 2012 22:25

Excerpt from Statemachine that responds to button press to perform benchmark.

	protected void onMain_BtnTowerOfHanoiAction(Component c, ActionEvent event) {
	final Label towerOfHanoiLabel = this.findLblTowerOfHanoi();
	towerOfHanoiLabel.setText("Calculating.... Please wait");
	if ( isCalculatingHanoi ){
	return;
	}
	isCalculatingHanoi = true;

	Thread t = new Thread(new Runnable(){

shannah / com_mycompany_myapp_NativeTowersOfHanoiImpl.m

Created December 6, 2012 22:28

Native method with towers of Hanoi benchmark.

	#import "com_mycompany_myapp_NativeTowersOfHanoiImpl.h"
	void com_mycompany_myapp_NativeTowersOfHanoiImpl_move(int n, int startPole, int endPole) {
	if (n == 0) {
	return;
	}
	int intermediatePole = 6 - startPole - endPole;
	com_mycompany_myapp_NativeTowersOfHanoiImpl_move(n - 1, startPole, intermediatePole);
	com_mycompany_myapp_NativeTowersOfHanoiImpl_move(n - 1, intermediatePole, endPole);
	}
	@implementation com_mycompany_myapp_NativeTowersOfHanoiImpl

shannah / StateMachine.java

Created December 6, 2012 22:29

Controller method to run the native towers of hanoi benchmark

	protected void onMain_BtnNativeTowerOfHanoiAction(Component c, ActionEvent event) {

	final Label towerOfHanoiLabel = this.findLblTowerOfHanoi();
	towerOfHanoiLabel.setText("Calculating.... Please wait");
	if ( isCalculatingHanoi ){
	return;
	}
	isCalculatingHanoi = true;

	Thread t = new Thread(new Runnable(){

shannah / com_mycompany_myapp_NativeTowersOfHanoiImpl.m

Created December 6, 2012 22:31

Revised Towers of Hanoi Benchmark with static variable that is incremented.

	#import "com_mycompany_myapp_NativeTowersOfHanoiImpl.h"
	static counter = 0;
	void com_mycompany_myapp_NativeTowersOfHanoiImpl_move(int n, int startPole, int endPole) {
	if (n == 0) {
	return;
	}
	int intermediatePole = 6 - startPole - endPole;
	com_mycompany_myapp_NativeTowersOfHanoiImpl_move(n - 1, startPole, intermediatePole);
	//NSLog(@"Move %i from %i to %i", n, startPole, endPole);
	com_mycompany_myapp_NativeTowersOfHanoiImpl_move(n - 1, intermediatePole, endPole);

shannah / TowersOfHanoi.java

Created December 6, 2012 22:33

Towers Of Hanoi class used for benchmarking CodenameOne revised with static variable incrementing.

	package com.mycompany.myapp;

	public class TowersOfHanoi {

	public static int counter = 0;
	public static void move(int n, int startPole, int endPole) {
	if (n == 0) {
	return;
	}
	int intermediatePole = 6 - startPole - endPole;

shannah / TowersOfHanoi.java

Created December 7, 2012 01:13

Towers of Hanoi changed to use object methods instead of static methods.

	/*
	* To change this template, choose Tools \| Templates
	* and open the template in the editor.
	*/
	package com.mycompany.myapp;

	/**
	*
	* @author shannah
	*/

shannah / StateMachine.java

Created December 7, 2012 01:14

Benchmark after changing to object methods.

	protected void onMain_BtnTowerOfHanoiAction(Component c, ActionEvent event) {
	final Label towerOfHanoiLabel = this.findLblTowerOfHanoi();
	towerOfHanoiLabel.setText("Calculating.... Please wait");
	if ( isCalculatingHanoi ){
	return;
	}
	isCalculatingHanoi = true;

	Thread t = new Thread(new Runnable(){

shannah / com_mycompany_myapp_NativeTowersOfHanoiImpl.m

Created December 7, 2012 01:27

Towers of Hanoi using objective-c messages.

	#import "com_mycompany_myapp_NativeTowersOfHanoiImpl.h"

	@implementation com_mycompany_myapp_NativeTowersOfHanoiImpl

	-(void)move:(int)n startPole:(int)startPole endPole:(int)endPole
	{
	if (n == 0) {
	return;
	}
	int intermediatePole = 6 - startPole - endPole;