Go: Building Web Applications

Chapter 5. Locks, Blocks, and Better Channels

Now that we're starting to get a good grasp of utilizing goroutines in safe and consistent ways, it's time to look a bit more at what causes code blocking and deadlocks. Let's also explore the sync package and dive into some profiling and analysis.

So far, we've built some relatively basic goroutines and complementary channels, but we now need to utilize some more complex communication channels between our goroutines. To do this, we'll implement more custom data types and apply them directly to channels.

We've not yet looked at some of Go's lower-level tools for synchronization and analysis, so we'll explore sync.atomic, a package that—along with sync.Mutex—allows for more granular control over state. ...