/usr/share/gocode/src/github.com/tendermint/log15/handler_go13.go is in golang-github-tendermint-log15-dev 2.3-67-g9545b24-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | // +build !go1.4
package log15
import (
"sync/atomic"
"unsafe"
)
// swapHandler wraps another handler that may be swapped out
// dynamically at runtime in a thread-safe fashion.
type swapHandler struct {
handler unsafe.Pointer
}
func (h *swapHandler) Log(r *Record) error {
return h.Get().Log(r)
}
func (h *swapHandler) Get() Handler {
return *(*Handler)(atomic.LoadPointer(&h.handler))
}
func (h *swapHandler) Swap(newHandler Handler) {
atomic.StorePointer(&h.handler, unsafe.Pointer(&newHandler))
}
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