// OpenTween - Client of Twitter
// Copyright (c) 2016 kim_upsilon (@kim_upsilon)
// All rights reserved.
//
// This file is part of OpenTween.
//
// This program is free software; you can redistribute it 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 program 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 , or write to
// the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
// Boston, MA 02110-1301, USA.
#nullable enable
#pragma warning disable SA1649
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace OpenTween
{
public sealed class ReadLockTransaction : IDisposable
{
private readonly ReaderWriterLockSlim lockObj;
public ReadLockTransaction(ReaderWriterLockSlim lockObj)
{
this.lockObj = lockObj ?? throw new ArgumentNullException(nameof(lockObj));
this.lockObj.EnterReadLock();
}
public void Dispose()
=> this.lockObj.ExitReadLock();
}
public sealed class WriteLockTransaction : IDisposable
{
private readonly ReaderWriterLockSlim lockObj;
public WriteLockTransaction(ReaderWriterLockSlim lockObj)
{
this.lockObj = lockObj ?? throw new ArgumentNullException(nameof(lockObj));
this.lockObj.EnterWriteLock();
}
public void Dispose()
=> this.lockObj.ExitWriteLock();
}
public sealed class UpgradeableReadLockTransaction : IDisposable
{
private readonly ReaderWriterLockSlim lockObj;
public UpgradeableReadLockTransaction(ReaderWriterLockSlim lockObj)
{
this.lockObj = lockObj ?? throw new ArgumentNullException(nameof(lockObj));
this.lockObj.EnterUpgradeableReadLock();
}
public WriteLockTransaction UpgradeToWriteLock()
=> new(this.lockObj);
public void Dispose()
=> this.lockObj.ExitUpgradeableReadLock();
}
}