Skip to Main Content
The Go Programming Language
book

The Go Programming Language

by Alan A. A. Donovan, Brian W. Kernighan
October 2015
Beginner to intermediate content levelBeginner to intermediate
400 pages
14h 44m
English
Addison-Wesley Professional
Content preview from The Go Programming Language

8.4 Channels

If goroutines are the activities of a concurrent Go program, channels are the connections between them. A channel is a communication mechanism that lets one goroutine send values to another goroutine. Each channel is a conduit for values of a particular type, called the channel’s element type. The type of a channel whose elements have type int is written chan int.

To create a channel, we use the built-in make function:

ch := make(chan int) // ch has type 'chan int'

As with maps, a channel is a reference to the data structure created by make. When we copy a channel or pass one as an argument to a function, we are copying a reference, so caller and callee refer to the same data structure. As with ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

The Rust Programming Language, 2nd Edition

The Rust Programming Language, 2nd Edition

Steve Klabnik, Carol Nichols
Programming Rust, 2nd Edition

Programming Rust, 2nd Edition

Jim Blandy, Jason Orendorff, Leonora F. S. Tindall

Publisher Resources

ISBN: 9780134190570Purchase book