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24 lines
469 B
24 lines
469 B
6 years ago
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// +build go1.4
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package log
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import "sync/atomic"
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// swapHandler wraps another handler that may be swapped out
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// dynamically at runtime in a thread-safe fashion.
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type swapHandler struct {
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handler atomic.Value
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}
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func (h *swapHandler) Log(r *Record) error {
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return (*h.handler.Load().(*Handler)).Log(r)
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}
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func (h *swapHandler) Swap(newHandler Handler) {
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h.handler.Store(&newHandler)
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}
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func (h *swapHandler) Get() Handler {
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return *h.handler.Load().(*Handler)
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}
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