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// Copyright 2017 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package monotonic
import (
"time"
_ "unsafe"
)
//go:noescape
//go:linkname nanotime runtime.nanotime
func nanotime() int64
// Now returns the current time in nanoseconds from a monotonic clock.
//
// The result is guaranteed to not jump due to NTP or other changes to
// system time, which may jump forward or backwards. Instead, in response to
// such changes, the clock frequency is adjusted slowly.
func Now() time.Duration {
return time.Duration(nanotime())
}
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