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37 lines
832 B
Go

// We can use channels to synchronize execution
// across goroutines. Here's an example of using a
// blocking receive to wait for a goroutine to finish.
// When waiting for multiple goroutines to finish,
// you may prefer to use a [WaitGroup](waitgroups).
package main
import (
"fmt"
"time"
)
// This is the function we'll run in a goroutine. The
// `done` channel will be used to notify another
// goroutine that this function's work is done.
func worker(done chan bool) {
fmt.Print("working...")
time.Sleep(time.Second)
fmt.Println("done")
// Send a value to notify that we're done.
done <- true
}
func main() {
// Start a worker goroutine, giving it the channel to
// notify on.
done := make(chan bool, 1)
go worker(done)
// Block until we receive a notification from the
// worker on the channel.
<-done
}