43 lines
751 B
Go
43 lines
751 B
Go
package buf
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import (
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"container/list"
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)
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// 블럭되지 않는 큐체널
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func NewStringQueue() (chan<- string, <-chan string) {
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send := make(chan string, 1)
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receive := make(chan string, 1)
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go manageStringQueue(send, receive)
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return send, receive
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}
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func manageStringQueue(send <-chan string, receive chan<- string) {
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queue := list.New()
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for {
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if front := queue.Front(); front == nil {
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if send == nil {
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close(receive)
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return
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}
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value, ok := <-send
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if !ok {
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close(receive)
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return
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}
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queue.PushBack(value)
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} else {
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select {
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case receive <- front.Value.(string):
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queue.Remove(front)
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case value, ok := <-send:
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if ok {
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queue.PushBack(value)
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} else {
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send = nil
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}
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}
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}
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}
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}
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