In Go programming language, make(chan bool) is used to create a channel of boolean values that can be used for communication and synchronization between goroutines.
Channels are a built-in feature in Go that provide a way for goroutines to communicate with each other and synchronize their execution. A channel is essentially a message queue that allows one goroutine to send data to another goroutine, or multiple goroutines, in a thread-safe manner.
The make function creates a new channel with the specified type and returns a reference to it. In this case, make(chan bool) creates a new unbuffered channel of boolean values.
Here’s an example of how you could use this:
func main() {
ch := make(chan bool)
go func() {
fmt.Println("Goroutine starts")
// do some work
fmt.Println("Goroutine finishes")
ch <- true // signal completion
}()
<-ch // wait for completion signal
}
In this example, we create a new channel ch of type bool. We then spawn a new goroutine that performs some work and signals its completion by sending true on the channel. Finally, the main goroutine waits for the completion signal by blocking on <-ch, which will block until there is data available on the channel (in this case, when the spawned goroutine sends its completion signal).
