chrisbanes

/*
 * Copyright 2017 Google, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

ssinss

import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;

public abstract class EndlessRecyclerOnScrollListener extends RecyclerView.OnScrollListener {
    public static String TAG = EndlessRecyclerOnScrollListener.class.getSimpleName();

    private int previousTotal = 0; // The total number of items in the dataset after the last load
    private boolean loading = true; // True if we are still waiting for the last set of data to load.
    private int visibleThreshold = 5; // The minimum amount of items to have below your current scroll position before loading more.
    int firstVisibleItem, visibleItemCount, totalItemCount;

ozodrukh

public static class HideExtraOnScroll extends RecyclerView.OnScrollListener{

    final static Interpolator ACCELERATE = new AccelerateInterpolator();
    final static Interpolator DECELERATE = new DecelerateInterpolator();

    WeakReference<View> mTarget;
    HideExtraOnScrollHelper mScrollHelper;

    boolean isExtraObjectsOutside;

benjchristensen

import rx.Observable;
import rx.subjects.PublishSubject;
import rx.subjects.SerializedSubject;
import rx.subjects.Subject;

/**
 * Simple pass-thru event bus with error handling and reconnect.
 */
public class EventBus {

debasishg

describe("non blocking apis using futures") {
  it("get and set should be non blocking") {
    val kvs = (1 to 10).map(i => s"key_$i").zip(1 to 10)
    val setResults = kvs map {case (k, v) =>
      set(k, v) apply client
    }
    val sr = Future.sequence(setResults)

    Await.result(sr.map(_.flatten), 2 seconds).forall(_ == true) should equal(true)

devunwired

/**
 * Copyright (c) 2013 Xcellent Creations, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

casualjim

package mojolly.io

import org.jboss.netty.bootstrap.ClientBootstrap
import org.jboss.netty.channel._
import socket.nio.NioClientSocketChannelFactory
import java.util.concurrent.Executors
import org.jboss.netty.handler.codec.http._
import collection.JavaConversions._
import websocketx._
import java.net.{InetSocketAddress, URI}