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49 lines
1.2 KiB
Markdown
49 lines
1.2 KiB
Markdown
<!--
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---
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title: Multi-channel Ticker
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description: Timer ticker that sends out the tick to multiple channels
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categories: [cc-metric-collector]
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tags: ['Developer']
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weight: 1
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hugo_path: docs/reference/cc-metric-collector/pkg/multichanticker/_index.md
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---
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-->
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# MultiChanTicker
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The idea of this ticker is to multiply the output channels. The original Golang `time.Ticker` provides only a single output channel, so the signal can only be received by a single other class. This ticker allows to add multiple channels which get all notified about the time tick.
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```golang
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type MultiChanTicker interface {
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Init(duration time.Duration)
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AddChannel(chan time.Time)
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}
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```
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The MultiChanTicker is created similarly to the common `time.Ticker`:
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```golang
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NewTicker(duration time.Duration) MultiChanTicker
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```
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Afterwards, you can add channels:
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```golang
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t := MultiChanTicker(duration)
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c1 := make(chan time.Time)
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c2 := make(chan time.Time)
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t.AddChannel(c1)
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t.AddChannel(c2)
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for {
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select {
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case t1 := <- c1:
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log.Print(t1)
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case t2 := <- c2:
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log.Print(t2)
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}
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}
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```
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The result should be the same `time.Time` output in both channels, notified "simultaneously".
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