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32 lines
435 B
Go
32 lines
435 B
Go
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package warning
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import (
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"sync"
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"github.com/sagernet/sing-box/log"
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)
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type Warning struct {
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logger log.Logger
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check CheckFunc
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message string
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checkOnce sync.Once
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}
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type CheckFunc = func() bool
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func New(checkFunc CheckFunc, message string) Warning {
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return Warning{
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check: checkFunc,
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message: message,
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}
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}
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func (w *Warning) Check() {
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w.checkOnce.Do(func() {
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if w.check() {
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log.Warn(w.message)
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}
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})
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}
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