1 // OpenTween - Client of Twitter
2 // Copyright (c) 2016 kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
3 // All rights reserved.
5 // This file is part of OpenTween.
7 // This program is free software; you can redistribute it and/or modify it
8 // under the terms of the GNU General Public License as published by the Free
9 // Software Foundation; either version 3 of the License, or (at your option)
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 // You should have received a copy of the GNU General Public License along
18 // with this program. If not, see <http://www.gnu.org/licenses/>, or write to
19 // the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
20 // Boston, MA 02110-1301, USA.
23 using System.Collections.Generic;
26 using System.Threading;
27 using System.Threading.Tasks;
31 public sealed class ReadLockTransaction : IDisposable
33 private readonly ReaderWriterLockSlim lockObj;
35 public ReadLockTransaction(ReaderWriterLockSlim lockObj)
37 this.lockObj = lockObj ?? throw new ArgumentNullException(nameof(lockObj));
38 this.lockObj.EnterReadLock();
42 => this.lockObj.ExitReadLock();
45 public sealed class WriteLockTransaction : IDisposable
47 private readonly ReaderWriterLockSlim lockObj;
49 public WriteLockTransaction(ReaderWriterLockSlim lockObj)
51 this.lockObj = lockObj ?? throw new ArgumentNullException(nameof(lockObj));
52 this.lockObj.EnterWriteLock();
56 => this.lockObj.ExitWriteLock();
59 public sealed class UpgradeableReadLockTransaction : IDisposable
61 private readonly ReaderWriterLockSlim lockObj;
63 public UpgradeableReadLockTransaction(ReaderWriterLockSlim lockObj)
65 this.lockObj = lockObj ?? throw new ArgumentNullException(nameof(lockObj));
66 this.lockObj.EnterUpgradeableReadLock();
69 public WriteLockTransaction UpgradeToWriteLock()
70 => new WriteLockTransaction(this.lockObj);
73 => this.lockObj.ExitUpgradeableReadLock();