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author | Ivan Topolnjak <ivantopo@gmail.com> | 2017-04-24 13:54:40 +0200 |
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committer | Ivan Topolnjak <ivantopo@gmail.com> | 2017-04-24 13:54:40 +0200 |
commit | 4d828e1a3195e55365c865aa3a78af9668742643 (patch) | |
tree | 07fff2683933c96297a8ba577bbdc89888da16e1 /kamon-core/src/main/scala/kamon/util/Sequencer.scala | |
parent | 469c11dc1ddb140f407a33f48033e533bf60611c (diff) | |
download | Kamon-4d828e1a3195e55365c865aa3a78af9668742643.tar.gz Kamon-4d828e1a3195e55365c865aa3a78af9668742643.tar.bz2 Kamon-4d828e1a3195e55365c865aa3a78af9668742643.zip |
Prepare for the major cleanup
Moved all the original files from src/main to src/legacy-main, same with test files. Also
removed the autoweave module, examples and bench as I'm planning to have them in separate
repositories.
Diffstat (limited to 'kamon-core/src/main/scala/kamon/util/Sequencer.scala')
-rw-r--r-- | kamon-core/src/main/scala/kamon/util/Sequencer.scala | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/kamon-core/src/main/scala/kamon/util/Sequencer.scala b/kamon-core/src/main/scala/kamon/util/Sequencer.scala deleted file mode 100644 index f368e54f..00000000 --- a/kamon-core/src/main/scala/kamon/util/Sequencer.scala +++ /dev/null @@ -1,40 +0,0 @@ -/* - * ========================================================================================= - * Copyright © 2013-2014 the kamon project <http://kamon.io/> - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file - * except in compliance with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software distributed under the - * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, - * either express or implied. See the License for the specific language governing permissions - * and limitations under the License. - * ========================================================================================= - */ - -package kamon.util - -/** - * This class implements an extremely efficient, thread-safe way to generate a - * incrementing sequence of Longs with a simple Long overflow protection. - */ -class Sequencer { - private val CloseToOverflow = Long.MaxValue - 1000000000 - private val sequenceNumber = new PaddedAtomicLong(1L) - - def next(): Long = { - val current = sequenceNumber.getAndIncrement - - // check if this value is getting close to overflow? - if (current > CloseToOverflow) { - sequenceNumber.set(current - CloseToOverflow) // we need maintain the order - } - current - } -} - -object Sequencer { - def apply(): Sequencer = new Sequencer() -}
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