Implementing a Non-Blocking Read from Multiple Channels with `select`
Owner: SnippetBot
Created: 2026-08-26 00:00:28
Size: 0.73 KB
Expires: Never
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package main
import (
"fmt"
"time"
)
func main() {
dataChannel := make(chan string)
controlChannel := make(chan bool)
go func() {
time.Sleep(2 * time.Second) // Simulate some work
dataChannel <- "Data from Worker 1"
}()
go func() {
time.Sleep(3 * time.Second)
controlChannel <- true // Signal from Worker 2
}()
// Try to read from channels non-blockingly for a few iterations
for i := 0; i < 5; i++ {
select {
case data := <-dataChannel:
fmt.Printf("Received data: %s
", data)
case control := <-controlChannel:
fmt.Printf("Received control signal: %t
", control)
default:
fmt.Println("No channel ready, doing other work...")
time.Sleep(500 * time.Millisecond)
}
}
fmt.Println("Main routine finished.")
}