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25 lines
473 B
Go
25 lines
473 B
Go
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package signals
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import (
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"os"
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"sync"
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)
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// GetProgressChannel returns a channel with which a single listener
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// receives each incoming signal.
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func GetProgressChannel() <-chan os.Signal {
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signals.Once.Do(func() {
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signals.ch = make(chan os.Signal, 1)
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setupSignals()
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})
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return signals.ch
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}
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// XXX The fact that signals is a single global variable means that only one
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// listener receives each incoming signal.
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var signals struct {
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ch chan os.Signal
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sync.Once
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}
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