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author | Zsolt Felfoldi <zsfelfoldi@gmail.com> | 2016-10-14 11:51:29 +0800 |
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committer | Felix Lange <fjl@twurst.com> | 2016-11-09 09:12:53 +0800 |
commit | 9f8d192991c4f68fa14c91366722bbca601da117 (patch) | |
tree | 5c1e089673d3f0208cd4a8208623bb95f29622c9 /vendor/github.com/aristanetworks/goarista/monotime/nanotime.go | |
parent | 760fd65487614b7a61443cd9371015925795f40f (diff) | |
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les: light client protocol and API
Diffstat (limited to 'vendor/github.com/aristanetworks/goarista/monotime/nanotime.go')
-rw-r--r-- | vendor/github.com/aristanetworks/goarista/monotime/nanotime.go | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/vendor/github.com/aristanetworks/goarista/monotime/nanotime.go b/vendor/github.com/aristanetworks/goarista/monotime/nanotime.go new file mode 100644 index 000000000..efc1b92a6 --- /dev/null +++ b/vendor/github.com/aristanetworks/goarista/monotime/nanotime.go @@ -0,0 +1,24 @@ +// Copyright (C) 2016 Arista Networks, Inc. +// Use of this source code is governed by the Apache License 2.0 +// that can be found in the COPYING file. + +// Package monotime provides a fast monotonic clock source. +package monotime + +import ( + _ "unsafe" // required to use //go:linkname +) + +//go:noescape +//go:linkname nanotime runtime.nanotime +func nanotime() int64 + +// Now returns the current time in nanoseconds from a monotonic clock. +// The time returned is based on some arbitrary platform-specific point in the +// past. The time returned is guaranteed to increase monotonically at a +// constant rate, unlike time.Now() from the Go standard library, which may +// slow down, speed up, jump forward or backward, due to NTP activity or leap +// seconds. +func Now() uint64 { + return uint64(nanotime()) +} |