macOS Daemonology: Communicate with Daemons, Agents, and Helpers Through XPC

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2021

V. VashurkinmacOS Daemonologyhttps://doi.org/10.1007/978-1-4842-7277-0_11

11. XPC at a Glance

Volodymyr Vashurkin¹  

(1)

Dnipro, Ukraine

 

In this chapter, we’ll provide an overview of XPC mechanisms and their main concepts, and we’ll present the most typical use case.

XPC Basics

Cross Process Communication (XPC) is a lightweight mechanism for interprocess communication integrated with Grand Central Dispatch (GCD) and launchd.

XPC is designed as a native bidirectional way to exchange data. It follows a classic approach of data exchange over connection. It assumes that there is a server (listener) and multiple clients (connections).

Clients can find the services to ...