Concurrency patterns in Golang: WaitGroup s and Goroutines
Blog post from LogRocket
Concurrency in programming allows multiple tasks to run independently and simultaneously, and Golang supports this through goroutines, which are lightweight threads managed by the Go runtime. Unlike standard threads, goroutines are resource-efficient, requiring significantly less stack space, making them ideal for building concurrent programs. The tutorial explores how to create and manage goroutines in Golang, highlighting the use of channels for communication between them and WaitGroups to synchronize their execution. Channels facilitate bidirectional communication, while WaitGroups ensure that goroutines complete before the main program exits, preventing premature termination. Moreover, buffered channels provide a way to store values temporarily, thus avoiding blocking during data transmission. Understanding the proper use of channels is crucial to prevent deadlocks, and while pointers and WaitGroups can sometimes replace channels, they serve different purposes. The tutorial underscores the importance of goroutines and channels in developing efficient concurrent applications in Golang.