mirror of https://github.com/nealey/vail.git
36 lines
570 B
Go
36 lines
570 B
Go
package main
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import (
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"io"
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)
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type Repeater struct {
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subscribers []io.Writer
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}
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func NewRepeater() *Repeater {
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return &Repeater{
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subscribers: make([]io.Writer, 0, 20),
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}
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}
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func (r *Repeater) Join(w io.Writer) {
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r.subscribers = append(r.subscribers, w)
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}
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func (r *Repeater) Part(w io.Writer) {
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for i, s := range r.subscribers {
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if s == w {
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nsubs := len(r.subscribers)
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r.subscribers[i] = r.subscribers[nsubs-1]
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r.subscribers = r.subscribers[:nsubs-1]
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}
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}
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}
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func (r *Repeater) Send(p []byte) {
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for _, s := range r.subscribers {
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s.Write(p)
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}
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}
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