Simplifying a Four‑Layer TCP Proxy in Go: From Custom Goroutine Loops to io.Copy

The article recounts the original complex implementation of a four‑layer TCP proxy in Easegress, explains why using separate read/write goroutines and custom buffers caused error‑handling and flow‑control difficulties, and then shows how switching to Go's io.Copy (and its variants) dramatically simplifies the code while preserving performance through zero‑copy techniques.

GoProxyTCP

0 likes · 17 min read

Simplifying a Four‑Layer TCP Proxy in Go: From Custom Goroutine Loops to io.Copy

Ops Development & AI Practice

Mar 4, 2024 · Backend Development

Why os.Rename Fails Across Devices in Go and How to Fix It

This article explains why Go's os.Rename throws an "invalid cross-device link" error when moving files between different file systems and shows how to replace it with io.Copy for reliable cross‑device file transfers, including code examples and related filesystem concepts.

Gocross-devicefile-handling

0 likes · 5 min read

Why os.Rename Fails Across Devices in Go and How to Fix It

360 Zhihui Cloud Developer

May 8, 2020 · Backend Development

Master Reading Data from io.Reader in Go: Simple Techniques & Code Samples

This article explains how to read data from an io.Reader in Go, covering the basic Read method, using io.Copy with custom writers, leveraging strings.Builder and ioutil.ReadAll, and introduces additional utilities like io.ReadAtLeast and io.ReadFull for efficient data handling.

Network programmingio.Copyio.Reader

0 likes · 9 min read

Master Reading Data from io.Reader in Go: Simple Techniques & Code Samples