Duane Bester duanebester

Multifaceted engineer with hardware design, firmware, and full-stack experience

duanebester / buffer-socket-utils.clj

Last active September 26, 2021 21:07

Getting and Closing a Buffer Socket

	(defn connected? [^SocketChannel client]
	(or (.isConnected client) (.isOpen client)))

	(defn get-buffer-socket
	[^Integer port ^String address]
	(let [client (SocketChannel/open)
	address (InetSocketAddress. address port)]
	(.configureBlocking client true)
	(.connect client address)
	(init-buffer-socket client)))

duanebester / init-buffer-socket.clj

Last active September 26, 2021 21:06

Building a Byte Buffer SocketChannel

	(defn- init-buffer-socket [client]
	(let [in-ch (async/chan)
	out-ch (async/chan)
	header-buf (ByteBuffer/allocate 5)
	buff-sock (map->ByteBufferSocket {:client client
	:in in-ch
	:out out-ch})]
	;; Read Backend Messages from Postgres
	(async/go-loop []
	(when (connected? client)

duanebester / buffer-socket-1.clj

Last active September 26, 2021 20:41

Buffer Socket Imports and Def

	(ns com.clunk.buffer-socket
	(:require [clojure.core.async :as async])
	(:import
	(java.nio ByteBuffer)
	(java.nio.channels SocketChannel)
	(java.net InetSocketAddress)))

	(defrecord ByteBufferSocket [^SocketChannel client in-ch out-ch])

duanebester / GoogleDriveDownloader.scala

Created August 3, 2021 19:28

Download files from Google Drive with Scala

	/**
	val scala3Version = "3.0.1"

	libraryDependencies += "com.google.api-client" % "google-api-client" % "1.32.1",
	libraryDependencies += "com.google.oauth-client" % "google-oauth-client-jetty" % "1.31.5",
	libraryDependencies += "com.google.apis" % "google-api-services-drive" % "v3-rev197-1.25.0",
	*/

	import com.google.api.services.drive._
	import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport

duanebester / ImageTransformer.scala

Created July 18, 2021 00:09

Image Processing with Cats and Scrimage - Scala 3

	/**
	libraryDependencies += "commons-io" % "commons-io" % "2.10.0",
	libraryDependencies += "com.sksamuel.scrimage" % "scrimage-core" % "4.0.20",
	libraryDependencies += ("com.sksamuel.scrimage" %% "scrimage-scala" % "4.0.20").cross(CrossVersion.for3Use2_13),
	*/

	import cats.effect.{ExitCode, IO, IOApp}
	import com.sksamuel.scrimage.ImmutableImage
	import com.sksamuel.scrimage.nio.PngWriter
	import java.io.File

duanebester / voyager.html

Created May 11, 2021 12:04

Voyager GraphQL With API Key Prompt

	<!DOCTYPE html>
	<html>
	<head>
	<script src="https://cdn.jsdelivr.net/npm/react@@16/umd/react.production.min.js"></script>
	<script src="https://cdn.jsdelivr.net/npm/react-dom@@16/umd/react-dom.production.min.js"></script>
	<link
	rel="stylesheet"
	href="https://cdn.jsdelivr.net/npm/graphql-voyager/dist/voyager.css"
	/>
	<script src="https://cdn.jsdelivr.net/npm/graphql-voyager/dist/voyager.min.js"></script>

duanebester / frontend_interview_questions.md

Last active January 14, 2021 21:07

JS Interview Questions

What will the code below output? Explain your answer.

console.log(0.1 + 0.2);
console.log(0.1 + 0.2 == 0.3);

Answer

duanebester / threads-scratch.u

Last active November 19, 2020 01:52

Threads Scratch for Unison

	use .base
	use .base.Text
	use .base.Nat

	counter.doc = [:
	@counter takes an `id` parameter and number `n` parameter to be incremented.
	Prints id and number: "Counter <id>: <n>".
	Recursively calls itself every 3 seconds with an incremented number.

	@[signature] counter

duanebester / threads-test.u

Created November 19, 2020 01:39

Playing with threads in Unison

	use .base
	use .base.Text
	use .base.Nat

	counter.doc = [:
	@counter takes an `id` parameter and number `n` parameter to be incremented.
	Prints id and number: "Counter <id>: <n>".
	Recursively calls itself every 3 seconds with an incremented number.

	@[signature] counter

duanebester / reduce_steps.py

Created October 22, 2020 02:34

Python Reduce Steps Challenge