Dealing with Timeout via a buffered error channel

timeout_buffered_error_channel.go

package main

import (
    "fmt"
    "log"
    "time"
)

func work() error {
    for i := 0; i < 1000; i++ {
        select {
        case <-time.After(2 * time.Second):
	    if i == 2 {
	       return fmt.Errorf("Done gone fucked up bai")
	    }
            fmt.Println("Doing some work ", i)
        }
    }
    return nil
}

func main() {
    fmt.Println("Hey, I'm going to do some work")

    ch := make(chan error, 1)
    go func() {
        ch <- work()
    }()

    select {
    case err := <-ch:
        if err != nil {
            log.Fatal("Something went wrong :(", err)
        }
    case <-time.After(8 * time.Second):
        fmt.Println("Life is to short to wait that long")
    }

    fmt.Println("Finished. I'm going home")
}