Nabil Hachicha nhachicha

nhachicha / Main.kt

Created February 6, 2020 12:08

Example of a GC detection mechanism in Kotlin/Native

	package sample

	import kotlinx.cinterop.StableRef
	import kotlinx.cinterop.toCPointer
	import kotlinx.coroutines.*
	import kotlinx.coroutines.channels.Channel
	import kotlinx.coroutines.channels.ReceiveChannel
	import kotlin.native.internal.GC
	import kotlin.native.ref.WeakReference

nhachicha / DumpRealms.java

Created July 19, 2017 14:29

Dump Realms configuration and SyncUser Using Reflection

	public static void dumpAllRealms() {
	try {
	StringBuilder report =
	new StringBuilder("*******************************************************************************\n")
	.append("******* D U M P I N G R E A L M I N S T A N C E S [ S T A R T ] ********\n")
	.append("*******************************************************************************\n\n");
	int nbrRealm = 0;
	Class<?> realmCacheClazz = Class.forName("io.realm.RealmCache");

	java.lang.reflect.Method getConfigurationMethod = realmCacheClazz.getMethod("getConfiguration");

nhachicha / Synchronizers.java

Created October 29, 2015 16:32

Examples using synchronizers (CountDownLatch, CyclicBarrier, Phaser)

	// ********************************************************************* //
	// ************************ CountDownLatch ************************ //
	// ********************************************************************* //
	public class RandomIntAverage {
	CountDownLatch controller = new CountDownLatch(NB_THREADS);

	public void randomIntAvg() throws InterruptedException {
	for (int i = 0; i < NB_THREADS; i++) {
	new Thread(new Task()).start();
	}

nhachicha / UnitTestWithLooper.java

Last active November 10, 2015 16:56

Example demonstrating problem you may encounter using the Looper/Handler with unit tests. & a pattern at the end to avoid them

	public void testLooperNotProcessingMessageTestWillNotExit () throws InterruptedException {
	Handler handler = new Handler() {
	@Override
	public void handleMessage(Message msg) {
	assertEquals(42, msg.what);
	}
	};

	boolean messageSent = handler.sendEmptyMessage(42);
	assertTrue(messageSent);

nhachicha / PhantomReferenceLeakDetector.java

Last active December 21, 2017 23:43

Example demonstrating how to use PhantomReference to detect memory leak

	static class Activity {
	interface Listener {}
	Service service;

	Activity(Service service) {
	this.service = service;
	}
	void onStart() {
	service.registerListener(new Listener() {});//Listener hold a reference to Activity

nhachicha / HttpCacheControl.java

Last active November 10, 2015 11:00

	package com.nabilhachicha.myapplication;

	import android.app.Activity;
	import android.os.Bundle;
	import android.os.StrictMode;
	import android.util.Log;

	import com.squareup.okhttp.Cache;
	import com.squareup.okhttp.Interceptor;
	import com.squareup.okhttp.OkHttpClient;