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https://github.com/linuxkit/linuxkit.git
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2ab909fcbd
This pulls in another slew of other packages. Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
27 lines
474 B
Go
27 lines
474 B
Go
// +build appengine
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package log15
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import "sync"
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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 interface{}
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lock sync.RWMutex
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}
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func (h *swapHandler) Log(r *Record) error {
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h.lock.RLock()
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defer h.lock.RUnlock()
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return h.handler.(Handler).Log(r)
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}
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func (h *swapHandler) Swap(newHandler Handler) {
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h.lock.Lock()
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defer h.lock.Unlock()
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h.handler = newHandler
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}
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