Created
May 20, 2015 04:25
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Dynamic pool that allows concurrency for a set of tasks to be throttled.
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package main | |
import "sync" | |
func main() { | |
jobChan := make(chan (chan int)) | |
resChan := make(chan int) | |
squareGroup := new(sync.WaitGroup) | |
// The workers | |
for i := 0; i < 5; i++ { | |
squareGroup.Add(1) | |
go func() { | |
for taskChan := range jobChan { | |
for n := range taskChan { | |
resChan <- n * n | |
} | |
} | |
squareGroup.Done() | |
}() | |
} | |
// The "submitter" | |
go func() { | |
taskChan := make(chan int) | |
for i := 0; i < 1; i++ { | |
jobChan <- taskChan | |
} | |
for i := 0; i < 10; i++ { | |
taskChan <- i | |
} | |
close(taskChan) | |
close(jobChan) | |
squareGroup.Wait() | |
close(resChan) | |
}() | |
// Collect the results back in the main goroutine | |
for s := range resChan { | |
println(s) | |
} | |
} |
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