reorganize package for a more idomatic go

1 files changed, 0 insertions, 85 deletions

diff --git a/util/lamport.go b/util/lamport.go
deleted file mode 100644
index 4d5dcf5b..00000000
--- a/util/lamport.go
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
-
-	This Source Code Form is subject to the terms of the Mozilla Public
-	License, v. 2.0. If a copy of the MPL was not distributed with this file,
-	You can obtain one at http://mozilla.org/MPL/2.0/.
-
-	Copyright (c) 2013, Armon Dadgar armon.dadgar@gmail.com
-	Copyright (c) 2013, Mitchell Hashimoto mitchell.hashimoto@gmail.com
-
-	Alternatively, the contents of this file may be used under the terms
-	of the GNU General Public License Version 3 or later, as described below:
-
-	This file is free software: you may copy, redistribute and/or modify
-	it under the terms of the GNU General Public License as published by the
-	Free Software Foundation, either version 3 of the License, or (at your
-	option) any later version.
-
-	This file is distributed in the hope that it will be useful, but
-	WITHOUT ANY WARRANTY; without even the implied warranty of
-	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-	Public License for more details.
-
-	You should have received a copy of the GNU General Public License
-	along with this program. If not, see http://www.gnu.org/licenses/.
-
-*/
-
-package util
-
-import (
-	"sync/atomic"
-)
-
-// LamportClock is a thread safe implementation of a lamport clock. It
-// uses efficient atomic operations for all of its functions, falling back
-// to a heavy lock only if there are enough CAS failures.
-type LamportClock struct {
-	counter uint64
-}
-
-// LamportTime is the value of a LamportClock.
-type LamportTime uint64
-
-func NewLamportClock() LamportClock {
-	return LamportClock{
-		counter: 1,
-	}
-}
-
-func NewLamportClockWithTime(time uint64) LamportClock {
-	return LamportClock{
-		counter: time,
-	}
-}
-
-// Time is used to return the current value of the lamport clock
-func (l *LamportClock) Time() LamportTime {
-	return LamportTime(atomic.LoadUint64(&l.counter))
-}
-
-// Increment is used to return the value of the lamport clock and increment it afterwards
-func (l *LamportClock) Increment() LamportTime {
-	return LamportTime(atomic.AddUint64(&l.counter, 1) - 1)
-}
-
-// Witness is called to update our local clock if necessary after
-// witnessing a clock value received from another process
-func (l *LamportClock) Witness(v LamportTime) {
-WITNESS:
-	// If the other value is old, we do not need to do anything
-	cur := atomic.LoadUint64(&l.counter)
-	other := uint64(v)
-	if other < cur {
-		return
-	}
-
-	// Ensure that our local clock is at least one ahead.
-	if !atomic.CompareAndSwapUint64(&l.counter, cur, other+1) {
-		// CAS: CompareAndSwap
-		// The CAS failed, so we just retry. Eventually our CAS should
-		// succeed or a future witness will pass us by and our witness
-		// will end.
-		goto WITNESS
-	}
-}