dt-rush

// MISSION: OPERATION TRANS LIBERATION
//
// USAGE:
// 	1) Navigate to https://new.reddit.com/r/place/
// 	2) Open the "Developer Tools" (CTRL+SHIFT+I)
// 	3) Make sure the context dropdown is set to: "embed" (https://i.imgur.com/YfCY4WP.png)
// 	4) Paste the code below in the console and hit enter. (https://i.imgur.com/YAHjJXP.png)
//      5) Leave window open and a pixel will be placed in the set
//         range every time your timer goes down

dt-rush

const getSdk = require('balena-sdk');
const balena = getSdk({
apiUrl: "https://api.balena-cloud.com/",
dataDirectory: "/tmp"
});
const key = process.env.BALENA_KEY;
const appId = parseInt(process.env.APP, 10);
const countResource = (resource) => {
    return balena.pine.get({
        resource: resource + '/$count',

dt-rush

const express = require('express');
const bodyParser = require('body-parser');
const onFinished = require('on-finished');

// it may be necessary to modify the request object in various ways, this can
// be done in this function. For example, a `_metrics_gatherer` object is
// added to req and req.connection for the purposes of metrics observing functions
const modifyReq = (req) => {
    req._metrics_gatherer = {};
    if (!req.connection._metrics_gatherer) {

dt-rush

// illustrating benign data races in:
//
// a. one-time flag setting where missing the flag being set is benign (we simply
// loop one more time, but in the logic of the program, that's fine)
//
// b. implementing an array-based queueing lock in which lockers wait on the
// value at their array position to be set to 1

package main

dt-rush

Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz
go version go1.8.3 linux/amd64

dt-rush

/* This was written to show that indexing a map with numbers
 * formed by putting two uint16's into a single uint32 takes longer
 * than indexing a map with uint16's in the range [0, 1023]
 */

package main

import (
    "fmt"
    "time"