35 lines
561 B
Go
35 lines
561 B
Go
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package main
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import (
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"fmt"
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"time"
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)
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func signal() chan bool {
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return make(chan bool, 1)
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}
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func worker(done chan bool, wkrnum int) {
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fmt.Println("BEGIN: ", wkrnum)
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fmt.Println("Wait 5 seconds...", wkrnum)
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time.Sleep(time.Duration(5 * time.Second))
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fmt.Printf("%d plus %d equals %d\n", wkrnum, 5, 5+wkrnum)
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time.Sleep(time.Duration(5000))
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fmt.Println("END: ", wkrnum)
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done <- true
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}
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func main() {
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done1 := signal()
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go worker(done1, 1)
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<-done1
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done2 := signal()
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go worker(done2, 2)
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<-done2
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done3 := signal()
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go worker(done3, 3)
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<-done3
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}
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