Build a Better Threadpool: Go Generics in Action — Code nomad

Threadpool in Go, generated by Gemini AI

Introduction

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One of Go’s main selling points, at least for me, is its support for concurrency. Starting a go routine is almost ridiculously easy, and channels make communication between go routines a breeze.

However, as the saying goes, with great power comes great responsibility: just the fact that you can easily spin up goroutines, means it can get out of control. Computers, server and laptops alike, even though they are powerful have a limited capacity.

Therefore building some sort of limitation is in order, hence the idea of a threadpool was born: a fixed number of threads are spun up, waiting for data to process and returning the results on a channel. This way we prevent overload yet we can enjoy the advantage which concurrent processing can bring.

Implementation

In this project we will define a worker function, which will be run in a go routine. This function is generic, receiving an id, an inbound channel for the jobs, an outbound channel for the results, a…