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Fixes #742 * Remove SocketTimeout options from iOS and Android since Xamarin doesn't provide a reasonable way to support it at this time * Huge performance win by redoing the Batcher reduplication
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| // | ||
| // UniqueList.cs | ||
| // | ||
| // Author: | ||
| // Jim Borden <[email protected]> | ||
| // | ||
| // Copyright (c) 2016 Couchbase, Inc All rights reserved. | ||
| // | ||
| // 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. | ||
| // | ||
| using System; | ||
| using System.Collections.Concurrent; | ||
| using System.Collections.Generic; | ||
| using System.Threading; | ||
|
|
||
| namespace Couchbase.Lite.Util | ||
| { | ||
| internal sealed class UniqueQueue<T> : IDisposable | ||
| { | ||
| private readonly Queue<T> _queue = new Queue<T>(); | ||
| private readonly HashSet<T> _used = new HashSet<T>(); | ||
| private readonly ReaderWriterLockSlim _lock = new ReaderWriterLockSlim(); | ||
|
|
||
| public int Count | ||
| { | ||
| get { | ||
| _lock.EnterReadLock(); | ||
| try { | ||
| return _queue.Count; | ||
| } finally { | ||
| _lock.ExitReadLock(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public UniqueQueue() | ||
| { | ||
| } | ||
|
|
||
| public void Enqueue(T obj) | ||
| { | ||
| _lock.EnterWriteLock(); | ||
| try { | ||
| if(_used.Contains(obj)) { | ||
| return; | ||
| } | ||
|
|
||
| _used.Add(obj); | ||
| _queue.Enqueue(obj); | ||
| } finally { | ||
| _lock.ExitWriteLock(); | ||
| } | ||
| } | ||
|
|
||
| public T Dequeue() | ||
| { | ||
| _lock.EnterWriteLock(); | ||
| try { | ||
| var retVal = _queue.Dequeue(); | ||
| _used.Remove(retVal); | ||
| return retVal; | ||
| } finally { | ||
| _lock.ExitWriteLock(); | ||
| } | ||
| } | ||
|
|
||
| public bool TryDequeue(out T obj) | ||
| { | ||
| _lock.EnterWriteLock(); | ||
| try { | ||
| obj = default(T); | ||
| if(_queue.Count == 0) { | ||
| return false; | ||
| } | ||
|
|
||
| obj = _queue.Dequeue(); | ||
| _used.Remove(obj); | ||
| return true; | ||
| } finally { | ||
| _lock.ExitWriteLock(); | ||
| } | ||
| } | ||
|
|
||
| public void Dispose() | ||
| { | ||
| _lock.Dispose(); | ||
| } | ||
| } | ||
| } |