35 lines
691 B
Go
35 lines
691 B
Go
package main
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import (
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"log"
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"math/rand"
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"sync"
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"time"
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)
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func worker(part string) {
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log.Println(part, "worker begins part")
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time.Sleep(time.Duration(rand.Int63n(1e6)))
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log.Println(part, "worker completes part")
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wg.Done()
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}
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var (
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partList = []string{"A", "B", "C", "D"}
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nAssemblies = 3
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wg sync.WaitGroup
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)
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func main() {
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rand.Seed(time.Now().UnixNano())
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for c := 1; c <= nAssemblies; c++ {
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log.Println("begin assembly cycle", c)
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wg.Add(len(partList))
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for _, part := range partList {
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go worker(part)
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}
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wg.Wait()
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log.Println("assemble. cycle", c, "complete")
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}
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}
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