50 lines
814 B
Go
50 lines
814 B
Go
package zsub
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import (
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"sync"
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"sync/atomic"
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)
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type ZGroup struct { // ZGroup
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sync.Mutex
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conns []*ZConn
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offset int32
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chMsg chan string // 组消息即时投递
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ztopic *ZTopic // 所属topic
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}
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func (g *ZGroup) appendTo(c *ZConn) {
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topic := g.ztopic.topic
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// report subscribe topic check
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if c.substoped[topic] != nil {
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return
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}
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// create new goroutine consumer message
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c.substoped[topic] = make(chan int, 0)
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c.appendTo(g.conns)
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go func() {
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for {
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select {
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case msg, ok := <-g.chMsg:
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if !ok {
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return
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}
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err := c.send("message", topic, msg)
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if err != nil { // 失败处理
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g.chMsg <- msg
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return
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}
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atomic.AddInt32(&g.offset, 1)
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case <-c.stoped:
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return
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case <-c.substoped[topic]:
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delete(c.substoped, topic)
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return
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}
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}
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}()
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}
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